WO2017185729A1 - Needle structure - Google Patents

Needle structure Download PDF

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Publication number
WO2017185729A1
WO2017185729A1 PCT/CN2016/107071 CN2016107071W WO2017185729A1 WO 2017185729 A1 WO2017185729 A1 WO 2017185729A1 CN 2016107071 W CN2016107071 W CN 2016107071W WO 2017185729 A1 WO2017185729 A1 WO 2017185729A1
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WO
WIPO (PCT)
Prior art keywords
needle
chamber
housing
port
injection
Prior art date
Application number
PCT/CN2016/107071
Other languages
French (fr)
Chinese (zh)
Inventor
黄翔
Original Assignee
黄翔
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 黄翔 filed Critical 黄翔
Publication of WO2017185729A1 publication Critical patent/WO2017185729A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3286—Needle tip design, e.g. for improved penetration

Definitions

  • This invention relates to a needle structure, and more particularly to a needle structure that can instantly confirm a blood return condition and improve surgical safety.
  • a filler such as hyaluronic acid
  • a sharp needle of a general needle in order to avoid bacterial infection, air in the needle cavity is not injected into the tissue.
  • the user will first perform the action of venting, and push the filler into the cavity in the needle first, until the cavity inside the needle is filled with hyaluronic acid, and it is determined that there is no air in the needle before the injection is performed.
  • the filler used in medical beauty injection is not a liquid, and is a material close to a solid, so it is necessary to avoid the position of the blood vessel when injecting. Because once injected into the blood vessels, it will cause clogging of blood vessels, which may cause serious side effects such as skin necrosis, blindness, stroke, and pulmonary embolism.
  • the position of the filler injection is usually under the skin. However, in actual injection, there is no way to visually observe the presence or absence of blood vessels in the subcutaneous tissue, so it is considered blind injection, which is due to the fact that there is no way to inject. 100% to determine the location of the injection. Therefore, in practice, the injector must be familiar with the anatomy, choose the appropriate injection plane and position, or use a blunt cannula, or perform an aspirate action at the time of injection to confirm the presence or absence of blood return. To ensure that it will not be injected into the blood vessels.
  • a currently known technique is to perform a withdrawal operation at the time of injection to confirm the presence or absence of blood return.
  • generally injected fillers have different viscosities depending on their materials, while relatively viscous fillers, such as: Radiesse, Ellanse or macromolecular hyaluronic acid, are in the row. After the gas fills the cavity inside the needle. If the needle tip is in the blood vessel when injecting these fillers, even if we perform the pumping action, it will be too sticky to allow the blood to flow back into the syringe due to the viscosity of the filler, so the blood return cannot be observed. .
  • Another well-known technique is to use a blunt needle whose needle is not pointed but has an arc shape.
  • blood vessels are not injured, but a too thin blunt needle has a puncture force of a certain degree of sharp needle, so there is still a risk of puncturing the blood vessel using a blunt needle.
  • a sharp needle or a blunt needle there is a certain risk at the time of injection, mainly because the injector has no way of knowing whether the needle tip is inside the blood vessel after the needle tip enters the skin. Therefore, there is currently no needle structure on the market that can quickly confirm blood return and significantly reduce the risk of surgical failure, so the relevant industry is seeking solutions.
  • the present invention provides a needle structure capable of allowing an injector to know whether a needle tip is inside a blood vessel after the needle tip has entered the skin without using a back pumping and utilizing a blood return phenomenon caused by natural pressure in the blood vessel.
  • the needle structure of the present invention has a first chamber and a second chamber that are not in communication, the first chamber is filled with a filler, and the second chamber is transparent and has an opening for confirming the condition of blood return. When the opening is opened, the blood return condition can be confirmed.
  • the injection filler can be prevented from flowing back into the second chamber, so that the injecting person can prevent the filler from entering the blood vessel and causing the blood vessel to embolize when the application is performed, thereby improving the safety of the operation.
  • the special needle structure allows the injector to operate conveniently, allowing the injector to perform the treatment more smoothly.
  • the needle structure includes a needle body, a housing, and a separator.
  • the needle body includes a needle chamber and a needle port, and the needle body chamber is connected to the needle port.
  • the housing is connected to the needle body.
  • the housing includes a housing chamber and an opening, and the needle chamber communicates with the housing chamber to form a needle cavity.
  • a divider is disposed in the needle cavity and the divider separates the needle cavity from the first chamber and the second chamber.
  • the first chamber and the second chamber are isolated from each other, and the partition separates the needle from the injection port and the blood return port.
  • the first chamber is filled with a filler and communicates with the injection port, while the second chamber is connected to the blood return opening and the opening.
  • the needle structure of the present invention enables the injector to determine whether the position of the needle tip is in the blood vessel or outside the blood vessel after the needle tip enters the skin without being pumped back during the injection. Furthermore, the special chamber structure can be used to confirm the blood returning condition, so that the injecting person avoids the filling of the blood vessel into the blood vessel during the application, thereby causing blood vessel embolism, thereby improving the safety of the operation.
  • the aforementioned needle body may be a blunt needle or a sharp needle.
  • the housing is provided with a switch portion that can open and close the opening.
  • the needle structure includes an inner needle portion and an outer needle portion.
  • the inner needle portion includes a first needle body and a first housing.
  • the first needle body includes a needle chamber and a needle port, and the needle body chamber is connected to the needle port.
  • the first housing is connected to the first needle body, and the first housing comprises a housing chamber.
  • the housing chamber communicates with the needle chamber to form a first chamber.
  • the first chamber is filled with a filler and communicates with the needle port.
  • the outer needle portion is disposed on the outer side of the inner needle portion, and the outer needle portion includes an opening and a blood return port.
  • a second chamber is formed between the outer needle portion and the inner needle portion, and the second chamber is isolated from the first chamber.
  • the needle structure of the present invention forms a special annular chamber through the inner and outer needle portions, which can be used to confirm the blood returning condition, and can prevent the injector from invading the blood vessel and causing blood vessel embolism during the application, greatly Improve the safety of surgery.
  • the outer needle portion may include a second needle body and a second housing.
  • the second needle ring is disposed on the outer side of the first needle body.
  • the blood return port is opened on the second needle body.
  • the second housing is connected to the second needle body and is disposed on the outer side of the first housing.
  • the opening is opened on the second housing.
  • the aforementioned second needle is a blunt needle or a sharp needle.
  • the second housing may be provided with a switch portion, and the switch portion opens and closes the opening.
  • the second chamber is connected to the blood port and the opening.
  • the second housing may include a proximal end portion and a distal end portion.
  • the proximal end has two ends, one end of which is connected to the second needle body, and the other end is connected to the distal end portion.
  • the opening is provided on the distal end.
  • the inner needle portion is movably positioned at the proximal end portion and the distal end portion.
  • the aforementioned outer needle portion may include a connector and an injection assembly.
  • the connecting seat communicates with the opening and connects to the second housing.
  • the injection assembly is coupled to the connector and the injection assembly includes an injection housing and an injection rod.
  • the injection housing is detachably coupled to the connector.
  • the injection rod is disposed in the injection housing and is displaceably positioned within the injection housing.
  • the aforementioned padding The substance may be Hyaluronic Acid, Calcium Hydroxyapatite (Radiesse), Polycaprolactone (Ellanse), Collagen (Collagen), Poly-L-Lactic Acid (PLLA, Sculptra), fat (Fat), polyacrylamide (Aaquamid), Triamcinolone Acetonide or Lidocaine.
  • Hyaluronic Acid Calcium Hydroxyapatite (Radiesse), Polycaprolactone (Ellanse), Collagen (Collagen), Poly-L-Lactic Acid (PLLA, Sculptra), fat (Fat), polyacrylamide (Aaquamid), Triamcinolone Acetonide or Lidocaine.
  • the needle structure includes a needle body, a housing, and a catheter.
  • the needle body includes a needle chamber, a needle port, and a separator.
  • the needle port is connected to the needle chamber.
  • the partition is placed in the needle chamber.
  • the housing is coupled to the needle body, and the housing includes a housing chamber and an opening, the needle chamber communicating with the housing chamber.
  • the catheter has an injection port and a tube wall that is displaceably disposed through the housing chamber and the needle chamber and is filled with a filler.
  • the partition is spaced apart from the needle by a first distance
  • the injection port is spaced apart from the needle by a second distance. When the first spacing is smaller than the second spacing, the partition is separated from the tube wall to form a blood return port; when the first spacing is greater than or equal to the second spacing, the tube wall is connected to the partitioning member, so that the blood return port is closed.
  • the needle structure of the present invention penetrates the needle body through the catheter to realize the injection of the filler and the confirmation of the blood return.
  • the injector uses a catheter to apply, it can prevent the filler from entering the blood vessel and causing blood vessel embolism, which can improve the safety of the operation.
  • the special needle structure combined with the catheter allows the injector to operate conveniently, allowing the injector to perform the treatment more smoothly.
  • FIG. 1 is a perspective view showing the structure of a needle according to an embodiment of the present invention.
  • Figure 2 is a side elevational view of the needle structure of Figure 1.
  • FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 2.
  • FIG. 4A is a schematic view showing the closing of the switch portion of FIG. 1.
  • FIG. 4B is a schematic view showing the opening of the switch portion of FIG. 1.
  • FIG. 5 is a schematic view showing the operation of the needle structure of FIG. 1.
  • Figure 6 is a side elevational view of a needle structure in accordance with another embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along line 7-7 of Figure 6.
  • FIG. 8 is a perspective view showing a needle structure according to still another embodiment of the present invention.
  • Figure 9 is a side elevational view of a needle structure in accordance with still another embodiment of the present invention.
  • Fig. 10A is a side elevational view showing the structure of the needle according to another embodiment of the present invention when blood return is confirmed.
  • Figure 10B is a side elevational view of the needle structure of Figure 10A as it is injected.
  • Figure 11A is a side elevational view of the needle structure in accordance with yet another embodiment of the present invention for confirming blood return.
  • Figure 11B is a side elevational view of the needle structure of Figure 11A as it is injected.
  • Fig. 12A is a schematic view showing the insertion of a needle structure into a blood vessel according to still another embodiment of the present invention.
  • Figure 12B is a schematic view showing the needle structure of Figure 12A at the time of injection.
  • Figure 13A is a cross-sectional view showing an outer needle portion of a needle structure according to another embodiment of the present invention.
  • Figure 13B is a side elevational view of the needle structure of Figure 13A as it is injected.
  • Figure 13C is a side elevational view of a needle structure in accordance with yet another embodiment of the present invention.
  • FIG. 1 is a perspective view of a needle structure 100 in accordance with an embodiment of the present invention.
  • 2 is a side elevational view of the needle structure 100 of FIG. 1.
  • 3 is a cross-sectional view taken along line 3-3 of FIG. 2.
  • FIG. 4A is a schematic diagram showing the closing of the switch portion 330 of FIG. 1.
  • FIG. 4B is a schematic diagram showing the opening of the switch portion 330 of FIG. 1.
  • the needle structure 100 is for injecting a filler, and the filler may be Hyaluronic Acid, Radiese, Ellanse, Collagen, Poly L-lactic acid (Poly).
  • the needle structure 100 of the present invention can be applied to a variety of medical needs.
  • This needle structure 100 includes a needle body 200, a housing 300, and a spacer 400.
  • the needle body 200 includes a needle chamber 210 and a needle port 220, and the needle chamber 210 is connected to the needle port 220.
  • the needle body 200 can be a blunt needle or a sharp needle.
  • the front end of the blunt needle has a circular arc shape, and the needle port 220 is located at the side of the front end.
  • the sharp needle is a general oblique needle.
  • the needle body 200 is an elongated metal tube and has a hollow cylindrical shape to facilitate penetration or extraction of the skin.
  • the housing 300 is coupled to the needle body 200.
  • the housing 300 includes a housing chamber 310, an opening 320, a switch portion 330, and a housing wall 340 that communicates with the housing chamber 310 to form a needle cavity 102.
  • the opening 320 is formed on the side of the housing wall 340.
  • the switch portion 330 corresponds to the opening 320 and is mounted on the housing wall 340, and the switch portion 330 can open or close the opening 320.
  • the switch portion 330 is a switchable movable valve that allows the housing chamber 310 inside the housing 300 to communicate or be isolated from the outside air. This switch portion 330 can control the switch by a manual method.
  • the housing 300 is made of a hard plastic, which may be transparent or translucent, and the housing wall 340 of the present embodiment is transparent, which allows the injector to quickly distinguish whether blood enters the housing cavity. In the room 310.
  • the divider 400 is disposed in the needle cavity 102 and the divider 400 separates the needle cavity 102 from the first chamber 410 and the second chamber 420.
  • the first chamber 410 and the second chamber 420 are isolated from each other.
  • the divider 400 separates the needle port 220 from the injection port 430 and the blood return port 440.
  • the first chamber 410 is filled with a filler and communicates with the injection port 430, while the second chamber 420 is connected to the blood return port 440 and the opening 320.
  • the present invention is a configuration in which the needle cavity 102 in the needle structure 100 is divided into two chambers by a partition 400, which are the first chamber 410 and the second chamber 420, respectively.
  • the first chamber 410 and the second chamber 420 may be equal or large, and may be one size or one small.
  • the shape of the first chamber 410 and the second chamber 420 may be circular, elliptical, rectangular or polygonal.
  • FIG. 5 is a schematic view showing the operation of the needle structure 100 of FIG. 1 , the first of the needle structure 100
  • the chamber 410 is filled with a filling and the second chamber 420 is used to confirm blood return.
  • the operation of the needle structure 100 can be divided into two steps.
  • the first step is a puncture step in which the needle 200 is inserted by the injector (physician or medical personnel) into the skin of the victim.
  • the second step is the injection step, which injects the filler into the non-vascular tissue.
  • the injector can utilize the second chamber 420 to confirm the blood return condition, the principle of which is mainly to utilize the capillary phenomenon and the pressure of the arteriovenous body itself. If the needle port 220 is stuck to the blood vessel, the blood in the blood vessel will flow from the second chamber 420 to the opening 320. Since the housing wall 340 is transparent material adjacent to the opening 320, the injector can directly observe whether there is blood return. The phenomenon occurs. The above procedure is like when the blood is drawn. In order to confirm whether the needle tip has entered the blood vessel, the blood donor will observe the blood returning condition in the hard plastic shell 300 of the needle. This is because the blood of the blood vessel has a certain pressure.
  • the second chamber 420 of the present invention has such a function that the interior of the second chamber 420 is air-free, but is not interconnected with the injection substance of the first chamber 410, so the first chamber 410 and the second chamber The chambers 420 are all separate spaces.
  • the second chamber 420 maintains atmospheric pressure, but once the needle tip is stuck inside the blood vessel, the injecting person can immediately observe the blood returning from the transparent hard plastic housing 300 of the needle because of the capillary phenomenon and the pressure of the arteriovenous vein. phenomenon.
  • the needle structure 100 of the present invention can achieve the effect of determining whether the needle is in the blood vessel without the action of the back pumping, and the injector can see that there is no blood return in the puncture step. It is possible to confirm that the needle tip is not in the blood vessel. Therefore, under the condition of no withdrawal, the injecting person can use the needle structure 100 of the present invention to safely inject, which not only increases the safety of the operation, but also avoids many unnecessary medical disputes.
  • the injector before the puncture, the injector first opens the switch portion 330 of the housing 300, because the switch portion 330 can keep the air in the second chamber 420 at atmospheric pressure, so once the needle tip is in the blood vessel, the injection is performed. The person can immediately see the blood return and stop the injection. When the injector determines the position to be injected and determines that it is no longer moving, the valve of the switch portion 330 can be closed and then enter the injection step.
  • the injector can push the syringe to allow the filler in the first chamber 410 to smoothly enter the tissue after confirming that the needle tip is not in the blood vessel.
  • the switch portion 330 closes the valve to allow air to remain in the second chamber 420 and maintain the fixed gas pressure of the second chamber 420, thereby preventing the filling of the first chamber 410 from being stressed. The relationship flows back into the second chamber 420, causing the space within the second chamber 420 to remain unblocked.
  • the injector can use the needle structure 100 again for the treatment of the next position after the needle structure 100 is withdrawn, in which case the valve of the switch portion 330 is opened again, and the second The chamber 420 can resume the function of detecting blood return.
  • the needle structure 100 of the present invention enables the injector to know whether the needle tip is in the blood vessel after the needle tip enters the skin, so that the injection can prevent the filler from entering the blood vessel when the application is performed. Vascular embolization, which in turn improves the safety of the operation.
  • FIG. 6 is a side view of the needle structure 100a according to another embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along line 7-7 of Figure 6.
  • the needle structure 100a is used to inject a filler, and the needle structure 100a includes an inner needle portion 500 and an outer needle portion 600.
  • the inner needle portion 500 includes a first needle body 510 and a first housing 520.
  • the first needle 510 includes a needle chamber 512 and a needle port 514, and the needle chamber 512 is coupled to the needle port 514.
  • the first housing 520 is connected to the first needle 510, and the first housing 520 includes a housing chamber 522.
  • the housing chamber 522 communicates with the needle chamber 512 to form a first chamber 530 that is filled with a filler and communicates with the needle port 514.
  • the outer needle portion 600 is annularly disposed outside the inner needle portion 500, and the outer needle portion 600 includes a second needle body 610 and a second housing 620.
  • the second needle 610 is disposed on the outer side of the first needle 510, and the blood return port 612 is opened on the second needle 610.
  • the second housing 620 is connected to the second needle body 610 and is disposed on the outer side of the first housing 520.
  • the opening 622 and the switch portion 624 are both open on the second housing 620.
  • a second chamber 630 is formed between the outer needle portion 600 and the inner needle portion 500. The second chamber 630 is isolated from the first chamber 530, and the second chamber 630 is connected to the blood return port 612 and the opening 622.
  • the switch unit 624 has the same configuration as that of the switch unit 330 of FIGS. 4A and 4B and will not be described again.
  • the second housing 620 is made of a hard plastic, which may be transparent or translucent, and the second housing of the embodiment 620 is transparent, which allows the injector to quickly resolve whether blood has entered the second chamber 630.
  • the needle structure 100a of the present invention forms a special annular chamber through the inner needle portion 500 and the outer needle portion 600, which can be used to confirm the blood returning condition, and can prevent the injector from entering the blood vessel during the application.
  • the cause of vascular embolization greatly improves the safety of the operation.
  • FIG. 8 is a perspective view showing a needle structure 100b according to still another embodiment of the present invention.
  • the needle structure 100b includes a first needle body 710, a first housing 720, a second needle body 730, and a second housing 740.
  • the first needle body 710 includes a first needle chamber 712 and a first needle port 714.
  • the first needle body chamber 712 is connected to the first needle port 714, and the first needle body 710 has a circular, elliptical or rectangular cross section. Or a polygon.
  • the first housing 720 is coupled to the first needle 710, and the first housing 720 includes a first housing chamber 722 that communicates with the first housing chamber 722 to form a first chamber 702.
  • the second needle body 730 is fixed to the first needle body 710, and the two needle bodies 730 are attached to each other, and the second needle body 730 may have a circular, elliptical, rectangular or polygonal cross section.
  • the second needle body 730 includes a second needle chamber 732 and a second needle port 734.
  • the second needle chamber 732 is coupled to the second needle port 734 and the second needle port 734 is adjacent to the first needle port 714.
  • the second housing 740 is coupled to the second needle body 730, and the second housing 740 includes a second housing chamber 742, an opening 744, a switch portion 746, and a housing wall 748.
  • the second needle chamber 732 communicates with the second housing chamber 742 to form a second chamber 704.
  • the first chamber 702 and the second chamber 704 are isolated from each other.
  • the first chamber 702 is filled with a filler and the second chamber 704 is connected to the second needle 734 and the opening 744.
  • the switch portion 746 is mounted on the housing wall 748, and the switch portion 746 can open or close the opening 744.
  • the portion of the housing wall 748 of the second housing 740 is transparent, which allows the injector to quickly resolve whether blood has entered the second chamber 704.
  • the switch portion 746 of the present embodiment is a cover that is pivotally connected to the edge of the housing wall 748. When the switch portion 746 covers the housing wall 748, the second chamber 704 is isolated from the outside air.
  • the switch portion 746 can also be manipulated manually.
  • one end of the second needle body 730 can be curved, that is, the portion of the second needle body 730 close to the second housing 740 is curved.
  • the curved structure causes the extending direction of the first housing 720 to intersect the extending direction of the second housing 740 at an angle. This angle can be greater than 10 degrees and less than 90 degrees.
  • the angle of the embodiment is 45 degrees, the purpose of which is to provide sufficient space for the second housing 740, and If the angle is too small, the first housing 720 and the second housing 740 are too close, which may cause inconvenience when the switch portion 746 is operated.
  • the needle structure 100b of the present invention can confirm the blood returning condition without the withdrawal, avoid the filling of the blood vessel into the blood vessel, thereby causing the blood vessel embolization to improve the safety of the operation, and the operation is convenient, so that the injector can be more smoothly. Complete the treatment.
  • FIG. 9 is a side elevational view of a needle structure 100c in accordance with still another embodiment of the present invention.
  • This needle structure 100c includes a needle body 800, a housing 300, and a spacer 400.
  • the housing 300 and the partition 400 are respectively the same as the housing 300 and the partition 400 in FIG. 3 , and details are not described herein again.
  • the needle structure 100c of the embodiment of Fig. 9 is a blunt needle, and the front end of the needle body 800 has an arc shape.
  • the divider 400 is disposed in the needle cavity 102 and the divider 400 separates the needle cavity 102 from the first chamber 410 and the second chamber 420.
  • the first chamber 410 and the second chamber 420 are isolated from each other. Moreover, the divider 400 separates the needle port 220 from the injection port 430 and the blood return port 440.
  • the first chamber 410 is filled with a filler and communicates with the injection port 430, while the second chamber 420 is connected to the blood return port 440 and the opening 320. Since the needle port 220 is located at the side of the front end, both the injection port 430 and the blood return port 440 are opened on the side of the front end of the needle body 800. It is worth mentioning that there is still a gap between the front end of the spacer 400 near the needle port 220 and the injection port 430, so that the injection filler can be simultaneously performed with the monitoring of the blood return.
  • the injector may operate the needle structure 100c when the injection port 430 is inside the blood vessel and the blood return port 440 is outside the blood vessel.
  • This embodiment can avoid this.
  • the situation has occurred.
  • the needle structure 100c has a first chamber 410 and a second chamber 420 that are not connected, the first chamber 410 is filled with a filler, and the second chamber 420 is transparent and the housing 300 is provided with an opening 320 and
  • the switch unit 330 is for confirming the status of blood return.
  • the blood return condition can be confirmed when the opening 320 is open, and the injection of the filler into the second chamber 420 can be avoided if closed.
  • the overall structure allows the injector to prevent the filler from entering the blood vessel during the application, thereby improving the safety of the operation.
  • FIG. 10A is a side view showing the needle structure 100d according to another embodiment of the present invention when blood return is confirmed.
  • Figure 10B is a side elevational view of the needle structure 100d of Figure 10A as it is injected.
  • the needle structure 100d includes a needle body 200, a housing 300, a divider 400a, and a catheter 900.
  • This needle Body 200 is a sharp needle.
  • the needle body 200 and the housing 300 are respectively the same as the needle body 200 and the housing 300 in FIG. 2, and will not be described again.
  • the spacer 400a will be a needle
  • the cavity 102 separates the first chamber 410 from the second chamber 420.
  • the blood return port 440 communicates with the first chamber 410 and the second chamber 420, and the blood return port 440 is adjacent to the needle port 220.
  • the blood return port 440 is interposed between the first partition portion 402a and the second partition portion 404, and the blood return port 440 has a diameter D3.
  • One end of the first partition portion 402a is connected to the inner wall of the needle body 200, and the other end is connected to the inner edge of the housing wall 340.
  • the second partition 404 is located in the needle chamber 210 and has an L-shaped side view.
  • the second chamber 420 is coupled to the blood return port 440 and the opening 320 of the housing 300 such that the second chamber 420 is interposed between the blood return port 440 and the opening 320.
  • the blood return port 440 is spaced apart from the needle port 220 by a first distance D1.
  • the catheter 900 has an injection port 910 and a tube wall 920 that is displaceably disposed in the first chamber 410 and is filled with a filler.
  • the tube wall 920 has the same shape as the first chamber 410.
  • the injector penetrates the catheter 900 into the first chamber 410 and displaces the injection port 910 to a specific position, such that the injection port 910 and the needle port 220 are
  • the second pitch D2 is greater than the first pitch D1.
  • the second chamber 420 is in communication with the needle port 220, so that the injector can confirm whether or not the blood vessel is hit by the condition of blood return, as shown in FIG. 10A.
  • the second step is to inject the filling.
  • the injector will further advance the catheter 900 toward the needle port 220 for a further interval, so that the second spacing D2 between the injection port 910 and the needle port 220 is less than Equal to the first spacing D1, the tube wall 920 of the catheter 900 closes the blood return port 440, thereby isolating the first chamber 410 from the second chamber 420. Then, the injector injects the filler in the catheter 900 to the needle port 220, and finally withdraws the needle body 200 to complete the injection procedure.
  • Such a structure can prevent the filler from entering the second chamber 420 at the time of injection to form a blockage, which can reduce the difficulty of cleaning.
  • the catheter 900 can be withdrawn from the first chamber 410 and discarded for replacement, and the needle 200 can be recycled after cleaning and sterilization, and continues with another filler-equipped catheter 900.
  • this structure and operation not only reduces manufacturing costs, but also operates Convenient and simple. Since the filler is viscous, the conventional injection needle structure is easy to cause clogging of the filler and cannot be used, and the invention not only allows the injector to smoothly and safely complete the treatment, but also greatly reduces the occurrence of the beating person. The risk of side effects or accidents.
  • Figure 11A is a side elevational view of the needle structure 100e in accordance with another embodiment of the present invention in confirming blood return.
  • Figure 11B is a side elevational view of the needle structure 100e of Figure 11A as it is injected.
  • the needle structure 100e includes a needle body 200, a housing 300, a divider 400b, and a catheter 900.
  • the needle body 200, the housing 300, and the catheter 900 are respectively the same as the needle body 200, the housing 300, and the catheter 900 in FIGS. 10A and 10B, respectively, and will not be described again.
  • 11A and 11B has a first partition 402b, a second partition 404, and a blood return port 440 that separates the needle cavity 102 from the first cavity. Room 410 and second chamber 420.
  • the first partition portion 402b is shorter than the first partition portion 402a of FIG. 10A, so the diameter D3 of the blood return port 440 of the needle structure 100e of FIGS. 11A and 11B is larger than the diameter of the blood return port 440 of the needle structure 100d of FIGS. 10A and 10B. D3.
  • the first partition portion 402b is only disposed in the housing 300, and the second partition portion 404 near the needle port 220 is disposed in the needle body 200, and the needle body chamber 210 of the needle body 200 has no first partition portion. 402b.
  • the needle body 200 can be made into a thinner tube body, and the needle body 200 having a smaller diameter can be formed, thereby reducing the size of the wound caused by the needle body 200 puncture.
  • two steps are performed as well. The first step is to confirm the blood return condition.
  • the injector penetrates the catheter 900 into the needle chamber 210 and displaces the injection port 910 to a specific position, so that the first between the injection port 910 and the needle port 220
  • the two pitches D2 are greater than the first pitch D1.
  • an empty chamber 422 is formed between the outer wall of the catheter 900 and the inner wall of the needle body 200.
  • the empty chamber 422 belongs to a part of the second chamber 420, and the empty chamber 422 and the needle port 220 communicate with each other, so that the injecting person can pass the blood return.
  • the condition confirms whether or not the blood vessel is hit, as shown in Fig. 11A.
  • the second step is to inject the filling.
  • the injector will further advance the catheter 900 toward the needle port 220 for a further interval, so that the second spacing D2 between the injection port 910 and the needle port 220 is less than Equal to the first spacing D1, the tube wall 920 of the catheter 900 closes the blood return port 440, thereby isolating the empty chamber 422 from the needle port 220. Then, the injector injects the filler within the catheter 900 to the needle port 220. Finally, when the filling is completed, the catheter 900 is withdrawn from the needle 200 and the first chamber 410 to complete the injection procedure.
  • the structure can prevent the filler from entering the empty chamber 422 during the injection and cause clogging, which not only reduces the difficulty of cleaning, but also has the structure and the injection operation is convenient, simple, safe and stable for the general injector.
  • FIG. 12A is a schematic view showing the insertion of the needle structure 100f into the blood vessel 104 according to still another embodiment of the present invention.
  • Figure 12B is a schematic view of the needle structure 100f of Figure 12A as it is being injected.
  • the needle structure 100f includes a needle body 200, a housing 300a, a catheter 900, a threaded portion 930, a rotating portion 940, and a syringe 950.
  • the needle body 200 can be a blunt needle or a sharp needle.
  • the needle is a needle.
  • the needle body 200 includes a needle chamber 210, a needle port 220 and a partition 400c.
  • the needle chamber 210 is connected to the needle port 220, and the partition 400c is provided.
  • the housing 300a is coupled to the needle body 200, and the housing 300a includes a housing chamber 310, an opening 320, and a housing wall 340.
  • the opening 320 communicates with the housing chamber 310 and is disposed through the housing wall 340.
  • the needle chamber 210 communicates with the housing chamber 310.
  • the catheter 900 has an injection port 910 and a tube wall 920.
  • the catheter 900 is movably disposed through the housing chamber 310 and the needle chamber 210 and is filled with a filler.
  • the partition 400c is spaced apart from the needle port 220 by a first spacing D1, and the injection port 910 is spaced apart from the needle port 220 by a second spacing D2.
  • the needle structure 100f of the present embodiment is not provided with a switch portion, and the screw portion 930 is connected between the catheter 900 and the rotating portion 940.
  • One end of the rotating portion 940 is connected to the threaded portion 930, and the other end is connected to the syringe 950.
  • the injector rotates the rotating portion 940, the catheter 900, the threaded portion 930, the rotating portion 940, and the syringe 950 are all rotated synchronously, so that the second spacing D2 between the injection port 910 and the needle port 220 is adjusted.
  • the first spacing D1 is smaller than the second spacing D2, and the partition 400c is separated from the tube wall 920 to form a blood return port 440.
  • Non-vascular tissue 106 is tissue without blood vessels 104.
  • the tube wall 920 is connected to the partition 400c, so that the blood return port 440 is closed, and the injector can apply the filling material to the non-vascular tissue 106, which greatly increases the operation. Safety, so for the injector and the patient, it can be said that the doctor and patient win-win.
  • FIG. 13A is a cross-sectional view showing the outer needle portion 600 of the needle structure 100g according to another embodiment of the present invention.
  • Figure 13B is a side elevational view of the needle structure 100g of Figure 13A as it is injected.
  • the needle structure 100g is used to simultaneously inject a filler and monitor blood return, and includes an inner needle portion 500 and an outer needle portion 600.
  • the inner needle portion 500 includes a first needle body 510 and a first housing 520.
  • the first needle 510 includes a needle chamber 512 and a needle port 514, and the needle chamber 512 is coupled to the needle port 514.
  • the first housing 520 is connected to the first needle 510, and the first housing 520 includes a housing chamber 522.
  • the housing chamber 522 communicates with the needle chamber 512 to form a first chamber 530 that is filled with a filler and communicates with the needle port 514.
  • the outer needle portion 600 is annularly disposed outside the inner needle portion 500, and the outer needle portion 600 includes the second needle body 610 and the second housing 620.
  • the second needle 610 is disposed on the outer side of the first needle 510, and the blood return port 612 is opened on the second needle 610.
  • the second housing 620 is connected to the second needle body 610 and is disposed on the outer side of the first housing 520 . Additionally, the second housing 620 can include a proximal end 620a and a distal end 620b.
  • the proximal end portion 620a has two ends, one end of which is connected to the second needle body 610, and the other end is connected to the distal end portion 620b.
  • the front end of the distal end portion 620b is embedded near the end portion 620a, and the distal end portion 620b is provided with an opening 622.
  • the inner needle portion 500 is displaceably positioned at the proximal end portion 620a and the distal end portion 620b. Furthermore, when the inner needle portion 500 is inserted into the outer needle portion 600, a second chamber 630 is formed between the outer needle portion 600 and the inner needle portion 500, and the second chamber 630 and the first chamber 530 are isolated from each other.
  • the needle structure 100g of the embodiment does not have a switch portion disposed on the second housing 620.
  • the second housing 620 is made of a hard plastic material, which may be transparent or translucent.
  • the opening 622 communicates with the second needle 610 through the proximal end portion 620a to the blood return port 612, which allows the injector to quickly distinguish whether or not blood enters the second chamber 630, thereby inferring the second needle body of the outer needle portion 600. Whether the 610 is inserted into the blood vessel.
  • the injector may The filler in the inner needle portion 500 is injected to the needle port 514 as shown in Fig. 13B.
  • the needle structure 100g of the present invention confirms the blood returning condition by the special structure formed by the inner needle portion 500 and the outer needle portion 600, and allows the injector to prevent the filler from entering the blood vessel and causing the blood vessel to embolize when the application is performed. Significantly improve the safety of surgery.
  • FIG. 13C is a side elevational view of a needle structure 100h in accordance with yet another embodiment of the present invention.
  • This needle structure 100h includes an inner needle portion 500 and an outer needle portion 600.
  • the outer needle portion 600 includes a second needle body 610, a second housing 620, a connector 640, and an injection assembly 1000.
  • the second housing 620 is provided with an opening 622.
  • the inner needle portion 500, the second needle body 610, and the second housing 620 have the same structure as the inner needle portion 500, the second needle body 610, and the second housing 620 of the needle structure 100g of FIGS. 13A and 13B, and the description thereof will not be repeated. .
  • the outer needle portion 600 further includes a connecting seat 640 and an injection assembly 1000 that communicates with the opening 622 and connects the second housing 620.
  • the connection between the connecting seat 640 and the second housing 620 is detachably connected or integrally connected, and the embodiment is an integral connection.
  • the connector 640 is made of a rigid plastic that can be coupled to a wide variety of injection assemblies 1000 for venting, bleeding, or creating a negative pressure.
  • the injection assembly 1000 is coupled to the connector 640, that is, the injection assembly 1000 is coupled to the second housing 620 through the connector 640.
  • the injection assembly 1000 includes an injection housing 1010 and an injection rod 1020.
  • the injection housing 1010 is detachably coupled to the connector 640.
  • the injection rod 1020 is then disposed in the injection housing 1010 and is displaceably positioned within the injection housing 1010.
  • the injection assembly 1000 provides an impulse to clean the interior of the second needle 610 and the second housing 620.
  • the connector 640 in combination with the structure of the injection assembly 1000 can drain the residual blood and allow the needle structure 100h to continue to be used, thereby reducing the cost of replacing the needle.
  • the needle structure of the present invention enables the injector to utilize the principle of natural pressure inside the blood vessel after the needle tip enters the skin, and whether the needle tip can be known without back pumping In the blood vessels.
  • the needle structure of the present invention has a first chamber and a second chamber that are not connected. The first chamber is filled with a filler, and the second chamber is transparent and has an opening for confirming the condition of blood return. When the opening is opened, the blood return condition can be confirmed. If the opening is closed, the injection of the filling material can be prevented from entering the second chamber, so that the injecting person can prevent the filling material from entering the blood vessel when the application is performed.
  • the special needle structure allows the injector to operate conveniently, allowing the injector to perform the treatment more smoothly.
  • the special double-chamber structure with the partition setting can achieve the effect of simultaneously injecting the filler and monitoring the blood return.
  • the present invention can not only enable the injecting person to complete the treatment process smoothly and with peace of mind, but also reduce the risk of side effects or accidents of the person being beaten.
  • the structure of the injection unit combined with the injection assembly can drain the residual blood and continue to use the needle structure, thereby reducing the cost of replacing the needle.

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Abstract

Disclosed is a needle structure (100), comprising a needle body (200), a housing (300) and a separator (400). The housing (300) is connected to the needle body (200) and includes a housing chamber (310) and an aperture (320). The needle body (200) includes a needle chamber (210) and a needle opening (220). The needle body chamber (210) is connected to the housing chamber (310) to form a needle cavity (102). The separator (400) separates the needle cavity (102) into a first chamber (410) and a second chamber (420).The separator (400) separates the needle opening (220) into an injection opening (430) and a blood return opening (440). The first chamber (410) is loaded with a filler and communicates with the injection opening (430), and the second chamber (420) is connected to the blood return opening (440) and the aperture (320).With the needle structure, the blood return can be determined using the transparency of the second chamber (420) and the aperture (320), so as to avoid injection to a blood vessel to cause embolism when applied by an injector, thereby further ensuring the surgical safety.

Description

针头结构Needle structure 技术领域Technical field
本发明是关于一种针头结构，特别是关于一种可即时确认回血状况而提高手术安全性的针头结构。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a needle structure, and more particularly to a needle structure that can instantly confirm a blood return condition and improve surgical safety.
背景技术Background technique
在使用一般针具的尖针(sharp needle)进行填充物(如：玻尿酸)注射时，为避免细菌感染，不会把针头空腔内的空气注射到组织里面。在注射前，使用者会先进行排气的动作，把填充物先推入针头内的空腔中，直到针头内部的空腔都充满玻尿酸后，确定针头内在无空气，才会进行注射。When a filler (such as hyaluronic acid) is injected using a sharp needle of a general needle, in order to avoid bacterial infection, air in the needle cavity is not injected into the tissue. Before the injection, the user will first perform the action of venting, and push the filler into the cavity in the needle first, until the cavity inside the needle is filled with hyaluronic acid, and it is determined that there is no air in the needle before the injection is performed.
一般应用于医美注射用的填充物不是液体，是接近固体的材质，所以在注射时，必须要避开血管的位置。因为一旦注射到血管，将会造成血管的堵塞，容易引起皮肤坏死、失明、中风、肺栓塞等严重的副作用。Generally, the filler used in medical beauty injection is not a liquid, and is a material close to a solid, so it is necessary to avoid the position of the blood vessel when injecting. Because once injected into the blood vessels, it will cause clogging of blood vessels, which may cause serious side effects such as skin necrosis, blindness, stroke, and pulmonary embolism.
填充物注射的位置通常是在皮下，然而在实际注射时，其实并没有办法确切目视皮下组织有无血管存在，所以都算是盲目的注射(blind injection)，其系因在注射时并没有办法百分之百确定注射的位置。因此，在实务上，注射者必须熟知解剖构造，选择适当的注射平面与位置，或是使用钝针(blunt cannula)，亦或是在注射时进行回抽(aspirate)的动作，确认有无回血以确保不会注射到血管内。The position of the filler injection is usually under the skin. However, in actual injection, there is no way to visually observe the presence or absence of blood vessels in the subcutaneous tissue, so it is considered blind injection, which is due to the fact that there is no way to inject. 100% to determine the location of the injection. Therefore, in practice, the injector must be familiar with the anatomy, choose the appropriate injection plane and position, or use a blunt cannula, or perform an aspirate action at the time of injection to confirm the presence or absence of blood return. To ensure that it will not be injected into the blood vessels.
目前公知的技术是在注射时进行回抽的动作，以确认有无回血。然而，一般注入的填充物依据本身的材质会有不同的黏滞系数，而比较黏性的填充物，例如：微晶瓷(Radiesse)、洢莲丝(Ellanse)或大分子的玻尿酸，在排气后会填满针头内的空腔。如果在注射这些填充物时，针尖在血管内，就算我们进行回抽的动作，也会因为填充物黏性的影响，导致太黏而让血液无法回流到针筒内，因此无法观察到回血现象。若这时候还继续推针筒把填充物注 射到血管，就会造成血管的栓塞。所以就算是用回抽的方法，如果是使用到黏滞系数大的填充物，还是存有误判的风险。A currently known technique is to perform a withdrawal operation at the time of injection to confirm the presence or absence of blood return. However, generally injected fillers have different viscosities depending on their materials, while relatively viscous fillers, such as: Radiesse, Ellanse or macromolecular hyaluronic acid, are in the row. After the gas fills the cavity inside the needle. If the needle tip is in the blood vessel when injecting these fillers, even if we perform the pumping action, it will be too sticky to allow the blood to flow back into the syringe due to the viscosity of the filler, so the blood return cannot be observed. . If at this time, continue to push the syringe to fill the filler When it is injected into a blood vessel, it will cause embolization of the blood vessel. Therefore, even if the method of back pumping is used, if a filler with a large viscosity coefficient is used, there is still a risk of misjudgment.
另外一种公知的技术是使用钝针，其针头不是尖的，而是呈现圆弧状。理论上比较不会伤到血管，但是太细的钝针，还是具有某等程度的尖针(sharp needle)的穿刺力，因此使用钝针仍然会有刺到血管的风险存在。由上述可知，无论是尖针还是钝针，在注射时均会产生一定的危险性，其主要是因为在针尖进入到皮肤之后，注射者没有办法确实知道针尖是否在血管内。因此，目前市场上缺乏可以快速确认回血并能大幅降低手术失败风险的针头结构，故相关业者正在寻求其解决之道。Another well-known technique is to use a blunt needle whose needle is not pointed but has an arc shape. In theory, blood vessels are not injured, but a too thin blunt needle has a puncture force of a certain degree of sharp needle, so there is still a risk of puncturing the blood vessel using a blunt needle. It can be seen from the above that whether it is a sharp needle or a blunt needle, there is a certain risk at the time of injection, mainly because the injector has no way of knowing whether the needle tip is inside the blood vessel after the needle tip enters the skin. Therefore, there is currently no needle structure on the market that can quickly confirm blood return and significantly reduce the risk of surgical failure, so the relevant industry is seeking solutions.
发明内容Summary of the invention
因此，本发明提供一种针头结构，其能够让注射者在针尖进入到皮肤之后，无需经过回抽，利用血管内自然的压力产生的回血现象，即可得知针尖是否在血管内。此外，本发明的针头结构具有不连通的第一腔室与第二腔室，第一腔室装有填充物，第二腔室为透明且具有开孔，用以确认回血的状况。当开孔打开时可确认回血状况，若关闭时可避免注射填充物回流进入第二腔室，可使注射者在施打时避免填充物打入血管而造成血管栓塞，进而提高手术的安全性。另外，特殊的针头结构使注射者能方便地操作，让注射者更能顺利地完成施打疗程。Accordingly, the present invention provides a needle structure capable of allowing an injector to know whether a needle tip is inside a blood vessel after the needle tip has entered the skin without using a back pumping and utilizing a blood return phenomenon caused by natural pressure in the blood vessel. Further, the needle structure of the present invention has a first chamber and a second chamber that are not in communication, the first chamber is filled with a filler, and the second chamber is transparent and has an opening for confirming the condition of blood return. When the opening is opened, the blood return condition can be confirmed. If the opening is closed, the injection filler can be prevented from flowing back into the second chamber, so that the injecting person can prevent the filler from entering the blood vessel and causing the blood vessel to embolize when the application is performed, thereby improving the safety of the operation. . In addition, the special needle structure allows the injector to operate conveniently, allowing the injector to perform the treatment more smoothly.
本发明的一实施方式为一种针头结构，用以注射填充物并监测回血情况。此针头结构包含针体、壳体以及分隔件。针体包含针体腔室与针口，针体腔室连接针口。再者，壳体连接针体。壳体包含壳体腔室与开孔，针体腔室连通壳体腔室而形成针头空腔。此外，分隔件设于针头空腔中，且此分隔件将针头空腔分隔出第一腔室与第二腔室。第一腔室与第二腔室彼此隔离，分隔件将针口分隔出注射口与回血口。第一腔室装有填充物且连通注射口，而第二腔室则连接回血口与开孔。 One embodiment of the present invention is a needle structure for injecting a filler and monitoring blood return. The needle structure includes a needle body, a housing, and a separator. The needle body includes a needle chamber and a needle port, and the needle body chamber is connected to the needle port. Furthermore, the housing is connected to the needle body. The housing includes a housing chamber and an opening, and the needle chamber communicates with the housing chamber to form a needle cavity. Additionally, a divider is disposed in the needle cavity and the divider separates the needle cavity from the first chamber and the second chamber. The first chamber and the second chamber are isolated from each other, and the partition separates the needle from the injection port and the blood return port. The first chamber is filled with a filler and communicates with the injection port, while the second chamber is connected to the blood return opening and the opening.
借此，本发明的针头结构能够让注射者在针尖进入到皮肤之后，在注射的过程中无需经过回抽即可确定针尖的位置是在血管内还是在血管外。再者，特殊的腔室结构可用以确认回血的状况，使注射者在施打时避免填充物打入血管而造成血管栓塞，进而提高了手术的安全性。Thereby, the needle structure of the present invention enables the injector to determine whether the position of the needle tip is in the blood vessel or outside the blood vessel after the needle tip enters the skin without being pumped back during the injection. Furthermore, the special chamber structure can be used to confirm the blood returning condition, so that the injecting person avoids the filling of the blood vessel into the blood vessel during the application, thereby causing blood vessel embolism, thereby improving the safety of the operation.
前述实施方式的其它实施例如下：前述的针体可为钝针或尖针。另外，前述壳体设有一开关部，此开关部可开闭开孔。Other embodiments of the foregoing embodiments are as follows: The aforementioned needle body may be a blunt needle or a sharp needle. In addition, the housing is provided with a switch portion that can open and close the opening.
本发明的另一实施方式为一种针头结构，用以注射填充物并监测回血情况。此针头结构包含内针部与外针部。其中内针部包含第一针体与第一壳体。第一针体包含一针体腔室与一针口，针体腔室连接针口。而第一壳体则连接第一针体，且第一壳体包含一壳体腔室。壳体腔室连通针体腔室而形成第一腔室。此第一腔室装有填充物且连通针口。此外，外针部环设于内针部之外侧，且外针部包含一开孔与一回血口。外针部与内针部之间形成第二腔室，第二腔室与第一腔室彼此隔离。Another embodiment of the invention is a needle structure for injecting a filler and monitoring blood return. The needle structure includes an inner needle portion and an outer needle portion. The inner needle portion includes a first needle body and a first housing. The first needle body includes a needle chamber and a needle port, and the needle body chamber is connected to the needle port. The first housing is connected to the first needle body, and the first housing comprises a housing chamber. The housing chamber communicates with the needle chamber to form a first chamber. The first chamber is filled with a filler and communicates with the needle port. In addition, the outer needle portion is disposed on the outer side of the inner needle portion, and the outer needle portion includes an opening and a blood return port. A second chamber is formed between the outer needle portion and the inner needle portion, and the second chamber is isolated from the first chamber.
借此，本发明的针头结构通过内外针部形成特殊的环状腔室，其可用来确认回血的状况，而且能让注射者在施打时避免填充物打入血管而造成血管栓塞，大幅地提高手术的安全性。Thereby, the needle structure of the present invention forms a special annular chamber through the inner and outer needle portions, which can be used to confirm the blood returning condition, and can prevent the injector from invading the blood vessel and causing blood vessel embolism during the application, greatly Improve the safety of surgery.
前述实施方式的其它实施例如下：前述外针部可包含第二针体与第二壳体。其中第二针体环设于第一针体之外侧。回血口开设于第二针体上。此外，第二壳体连接第二针体且环设于第一壳体之外侧。开孔开设于第二壳体上。前述第二针体为钝针或尖针。此外，前述第二壳体可设有一开关部，开关部开闭开孔。第二腔室连接回血口与开孔。前述第二壳体可包含一近端部与一远端部。近端部具有二端，其中一端连接第二针体，另一端则连接远端部。开孔设于远端部上。其中内针部可位移地定位于近端部与远端部。此外，前述外针部可包含连接座与注射组件。连接座连通开孔且连接第二壳体。注射组件连接连接座，且注射组件包含注射壳体与注射杆。注射壳体可拆卸地连接连接座。注射杆则设于注射壳体且可位移地定位于注射壳体内。前述填充 物可为玻尿酸(Hyaluronic Acid)、羟基磷灰石钙(Calcium Hydroxyapatite，Radiesse)、聚己内酯(Polycaprolactone，Ellanse)、胶原蛋白(Collagen)、聚左旋乳酸(Poly-L-Lactic Acid，PLLA，Sculptra)、脂肪(Fat)、聚丙烯胺(Polyacrylamide，Aaquamid)、丙酮特安皮质醇(Triamcinolone Acetonide)或利多卡因(Lidocaine)。Other embodiments of the foregoing embodiments are as follows: The outer needle portion may include a second needle body and a second housing. The second needle ring is disposed on the outer side of the first needle body. The blood return port is opened on the second needle body. In addition, the second housing is connected to the second needle body and is disposed on the outer side of the first housing. The opening is opened on the second housing. The aforementioned second needle is a blunt needle or a sharp needle. In addition, the second housing may be provided with a switch portion, and the switch portion opens and closes the opening. The second chamber is connected to the blood port and the opening. The second housing may include a proximal end portion and a distal end portion. The proximal end has two ends, one end of which is connected to the second needle body, and the other end is connected to the distal end portion. The opening is provided on the distal end. The inner needle portion is movably positioned at the proximal end portion and the distal end portion. Further, the aforementioned outer needle portion may include a connector and an injection assembly. The connecting seat communicates with the opening and connects to the second housing. The injection assembly is coupled to the connector and the injection assembly includes an injection housing and an injection rod. The injection housing is detachably coupled to the connector. The injection rod is disposed in the injection housing and is displaceably positioned within the injection housing. The aforementioned padding The substance may be Hyaluronic Acid, Calcium Hydroxyapatite (Radiesse), Polycaprolactone (Ellanse), Collagen (Collagen), Poly-L-Lactic Acid (PLLA, Sculptra), fat (Fat), polyacrylamide (Aaquamid), Triamcinolone Acetonide or Lidocaine.
本发明的又一实施方式为一种针头结构，用以注射填充物并监测回血情况。此针头结构包含针体、壳体以及导管。针体包含针体腔室、针口以及分隔件。针口连接针体腔室。分隔件则设于针体腔室中。壳体连接针体，且壳体包含一壳体腔室与一开孔，针体腔室连通壳体腔室。导管具有一注射口与一管壁，导管可位移地穿设于壳体腔室与针体腔室且装有填充物。此外，分隔件与针口相隔一第一间距，而注射口与针口相隔一第二间距。当第一间距小于第二间距时，分隔件与管壁分离而形成一回血口；当第一间距大于等于第二间距时，管壁连接分隔件，借以令回血口封闭。Yet another embodiment of the present invention is a needle structure for injecting a filler and monitoring blood return. The needle structure includes a needle body, a housing, and a catheter. The needle body includes a needle chamber, a needle port, and a separator. The needle port is connected to the needle chamber. The partition is placed in the needle chamber. The housing is coupled to the needle body, and the housing includes a housing chamber and an opening, the needle chamber communicating with the housing chamber. The catheter has an injection port and a tube wall that is displaceably disposed through the housing chamber and the needle chamber and is filled with a filler. In addition, the partition is spaced apart from the needle by a first distance, and the injection port is spaced apart from the needle by a second distance. When the first spacing is smaller than the second spacing, the partition is separated from the tube wall to form a blood return port; when the first spacing is greater than or equal to the second spacing, the tube wall is connected to the partitioning member, so that the blood return port is closed.
借此，本发明的针头结构通过导管穿设针体来实现填充物的注入以及回血的确认。当注射者利用导管施打时，可避免填充物打入血管而造成血管栓塞，能提高手术的安全性。再者，特殊的针头结构结合导管使注射者能方便地操作，进而让注射者更能顺利地完成施打疗程。Thereby, the needle structure of the present invention penetrates the needle body through the catheter to realize the injection of the filler and the confirmation of the blood return. When the injector uses a catheter to apply, it can prevent the filler from entering the blood vessel and causing blood vessel embolism, which can improve the safety of the operation. Furthermore, the special needle structure combined with the catheter allows the injector to operate conveniently, allowing the injector to perform the treatment more smoothly.
附图说明DRAWINGS
图1是绘示本发明一实施例的针头结构的立体示意图。1 is a perspective view showing the structure of a needle according to an embodiment of the present invention.
图2是绘示图1的针头结构的侧视图。Figure 2 is a side elevational view of the needle structure of Figure 1.
图3是绘示图2的剖线3-3的剖视图。3 is a cross-sectional view taken along line 3-3 of FIG. 2.
图4A是绘示图1的开关部的关闭示意图。4A is a schematic view showing the closing of the switch portion of FIG. 1.
图4B是绘示图1的开关部的开启示意图。FIG. 4B is a schematic view showing the opening of the switch portion of FIG. 1. FIG.
图5是绘示图1的针头结构的操作示意图。FIG. 5 is a schematic view showing the operation of the needle structure of FIG. 1. FIG.
图6是绘示本发明另一实施例的针头结构的侧视图。 Figure 6 is a side elevational view of a needle structure in accordance with another embodiment of the present invention.
图7是绘示图6的剖线7-7的剖视图。Figure 7 is a cross-sectional view taken along line 7-7 of Figure 6.
图8是绘示本发明又一实施例的针头结构的立体示意图。FIG. 8 is a perspective view showing a needle structure according to still another embodiment of the present invention.
图9是绘示本发明再一实施例的针头结构的侧视图。Figure 9 is a side elevational view of a needle structure in accordance with still another embodiment of the present invention.
图10A是绘示本发明另一实施例的针头结构于确认回血时的侧视图。Fig. 10A is a side elevational view showing the structure of the needle according to another embodiment of the present invention when blood return is confirmed.
图10B是绘示图10A的针头结构于注射时的侧视图。Figure 10B is a side elevational view of the needle structure of Figure 10A as it is injected.
图11A是绘示本发明又一实施例的针头结构于确认回血时的侧视图。Figure 11A is a side elevational view of the needle structure in accordance with yet another embodiment of the present invention for confirming blood return.
图11B是绘示图11A的针头结构于注射时的侧视图。Figure 11B is a side elevational view of the needle structure of Figure 11A as it is injected.
图12A是绘示本发明再一实施例的针头结构***血管的示意图。Fig. 12A is a schematic view showing the insertion of a needle structure into a blood vessel according to still another embodiment of the present invention.
图12B是绘示图12A的针头结构于注射时的示意图。Figure 12B is a schematic view showing the needle structure of Figure 12A at the time of injection.
图13A是绘示本发明另一实施例的针头结构的外针部的剖视图。Figure 13A is a cross-sectional view showing an outer needle portion of a needle structure according to another embodiment of the present invention.
图13B是绘示图13A的针头结构于注射时的侧视图。Figure 13B is a side elevational view of the needle structure of Figure 13A as it is injected.
图13C是绘示本发明又一实施例的针头结构的侧视图。Figure 13C is a side elevational view of a needle structure in accordance with yet another embodiment of the present invention.
具体实施方式Detailed ways
以下将参照附图说明本发明的多个实施例。为明确说明起见，许多实务上的细节将在以下叙述中一并说明。然而，应了解到，这些实务上的细节不应用以限制本发明。也就是说，在本发明部分实施例中，这些实务上的细节是非必要的。此外，为简化附图起见，一些公知惯用的结构与元件在附图中将以简单示意的方式绘示；并且重复的元件将可能使用相同的编号表示。Hereinafter, various embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the well-known structures and elements are illustrated in the accompanying drawings in the drawings, and the
请一并参阅图1～4B。图1是绘示本发明一实施例的针头结构100的立体示意图。图2是绘示图1的针头结构100的侧视图。图3是绘示图2的剖线3-3的剖视图。图4A是绘示图1的开关部330的关闭示意图。图4B是绘示图1的开关部330的开启示意图。如图所示，针头结构100是用以注射填充物，填充物可为玻尿酸(Hyaluronic Acid)、微晶瓷(Radiesse)、洢莲丝(Ellanse)、胶原蛋白(Collagen)、聚左旋乳酸(Poly-L-Lactic Acid；PLLA；Sculptra)、脂肪(Fat)、聚丙烯胺(Polyacrylamide；Aaquamid)或是其它不宜注射到血管内的药 物，例如：丙酮特安皮质醇(Triamcinolone Acetonide)或利多卡因(Lidocaine)。上述微晶瓷(Radiesse)的主要成份为羟基磷灰石钙(Calcium Hydroxyapatite)，而洢莲丝(Ellanse)的主要成份为聚己内酯(Polycaprolactone)。由上述可知，本发明的针头结构100可以应用于多种医疗的需求上。此针头结构100包含针体200、壳体300以及分隔件400。Please refer to Figures 1 to 4B together. 1 is a perspective view of a needle structure 100 in accordance with an embodiment of the present invention. 2 is a side elevational view of the needle structure 100 of FIG. 1. 3 is a cross-sectional view taken along line 3-3 of FIG. 2. FIG. 4A is a schematic diagram showing the closing of the switch portion 330 of FIG. 1. FIG. 4B is a schematic diagram showing the opening of the switch portion 330 of FIG. 1. As shown, the needle structure 100 is for injecting a filler, and the filler may be Hyaluronic Acid, Radiese, Ellanse, Collagen, Poly L-lactic acid (Poly). -L-Lactic Acid; PLLA; Sculptra), Fat (Fat), Polyacrylamide (Aaquamid) or other drugs not suitable for injection into blood vessels For example, Triamcinolone Acetonide or Lidocaine. The main component of the above-mentioned microcrystalline porcelain (Radiesse) is Calcium Hydroxyapatite, and the main component of Ellanse is Polycaprolactone. As can be seen from the above, the needle structure 100 of the present invention can be applied to a variety of medical needs. This needle structure 100 includes a needle body 200, a housing 300, and a spacer 400.
针体200包含针体腔室210与针口220，针体腔室210连接针口220。针体200可为钝针或尖针。钝针的前端为圆弧形，其针口220位于前端的侧边。尖针则为一般的斜口针。而且针体200为细长的金属管，且呈中空圆柱状，以方便刺入或抽出皮肤。The needle body 200 includes a needle chamber 210 and a needle port 220, and the needle chamber 210 is connected to the needle port 220. The needle body 200 can be a blunt needle or a sharp needle. The front end of the blunt needle has a circular arc shape, and the needle port 220 is located at the side of the front end. The sharp needle is a general oblique needle. Moreover, the needle body 200 is an elongated metal tube and has a hollow cylindrical shape to facilitate penetration or extraction of the skin.
壳体300连接针体200。壳体300包含壳体腔室310、开孔320、开关部330以及壳体壁340，针体腔室210连通壳体腔室310而形成针头空腔102。再者，开孔320开设于壳体壁340的侧边。开关部330对应开孔320并装设于壳体壁340上，且开关部330可打开或关闭开孔320。详细地说，开关部330为一个可开关的活动阀门，其可让壳体300内部的壳体腔室310与外界的空气相通或隔绝。此开关部330可通过手动的方式来控制开关。另外，壳体300是由硬质塑胶所制成，其可呈透明或半透明状，而本实施例的壳体壁340为透明状，其可让注射者快速地分辨是否有血液进入壳体腔室310之中。The housing 300 is coupled to the needle body 200. The housing 300 includes a housing chamber 310, an opening 320, a switch portion 330, and a housing wall 340 that communicates with the housing chamber 310 to form a needle cavity 102. Furthermore, the opening 320 is formed on the side of the housing wall 340. The switch portion 330 corresponds to the opening 320 and is mounted on the housing wall 340, and the switch portion 330 can open or close the opening 320. In detail, the switch portion 330 is a switchable movable valve that allows the housing chamber 310 inside the housing 300 to communicate or be isolated from the outside air. This switch portion 330 can control the switch by a manual method. In addition, the housing 300 is made of a hard plastic, which may be transparent or translucent, and the housing wall 340 of the present embodiment is transparent, which allows the injector to quickly distinguish whether blood enters the housing cavity. In the room 310.
分隔件400设于针头空腔102中，且此分隔件400将针头空腔102分隔出第一腔室410与第二腔室420。第一腔室410与第二腔室420彼此隔离。此外，分隔件400将针口220分隔出注射口430与回血口440。第一腔室410装有填充物且连通注射口430，而第二腔室420则连接回血口440与开孔320。换句话说，本发明是将针头结构100内的针头空腔102利用分隔件400划分为双腔的构造，这两个腔室分别为第一腔室410与第二腔室420。第一腔室410与第二腔室420可以是等大，也可为一大一小。第一腔室410与第二腔室420的形状可以是圆形、椭圆形、矩形或者多边形。The divider 400 is disposed in the needle cavity 102 and the divider 400 separates the needle cavity 102 from the first chamber 410 and the second chamber 420. The first chamber 410 and the second chamber 420 are isolated from each other. In addition, the divider 400 separates the needle port 220 from the injection port 430 and the blood return port 440. The first chamber 410 is filled with a filler and communicates with the injection port 430, while the second chamber 420 is connected to the blood return port 440 and the opening 320. In other words, the present invention is a configuration in which the needle cavity 102 in the needle structure 100 is divided into two chambers by a partition 400, which are the first chamber 410 and the second chamber 420, respectively. The first chamber 410 and the second chamber 420 may be equal or large, and may be one size or one small. The shape of the first chamber 410 and the second chamber 420 may be circular, elliptical, rectangular or polygonal.
图5是绘示图1的针头结构100的操作示意图，此针头结构100的第一 腔室410装有填充物，第二腔室420则用以确认回血。针头结构100的操作可分为两个步骤。第一个步骤为穿刺步骤，此穿刺步骤是由注射者(医师或医疗人员)将针体200刺入被施打者的皮肤。第二个步骤为注射步骤，其系将填充物注射至非血管的组织内。FIG. 5 is a schematic view showing the operation of the needle structure 100 of FIG. 1 , the first of the needle structure 100 The chamber 410 is filled with a filling and the second chamber 420 is used to confirm blood return. The operation of the needle structure 100 can be divided into two steps. The first step is a puncture step in which the needle 200 is inserted by the injector (physician or medical personnel) into the skin of the victim. The second step is the injection step, which injects the filler into the non-vascular tissue.
在穿刺步骤中，注射者可利用第二腔室420来确认回血状况，其原理主要是利用毛细现象以及动静脉本身具有的压力。若针口220刺到血管，则血管内的血液会从第二腔室420流至开孔320，由于壳体壁340邻近开孔320之处为透明材质，故注射者可直接观测有无回血的现象发生。上述做法就像是一般在抽血的时候，抽血者为了确认针尖是否已经进入血管内，会在针头的硬质塑胶壳体300部位观察回血的状况，这是因为血管的血液具有一定的压力，会把针尖内的空气推挤出去，进而使血液跑到针头连接的壳体300中。而本发明的第二腔室420就是具有这样的功能，第二腔室420内部是有空气的，但是却不与第一腔室410的注射物质互相连接，所以第一腔室410与第二腔室420均为独立的空间。在注射时，第二腔室420保持大气压力，但是一旦针尖刺到血管里面，因为毛细现象跟动静脉的压力，注射者马上就可以在针头的透明硬质塑胶壳体300部位观察到回血的现象。而本发明相较于公知的针头，本发明的针头结构100不需要通过回抽的动作，就可以达到确知针头是否在血管内的效果，而注射者在穿刺步骤中，只要看到没有回血，就可以确知针尖不在血管内。因此，在无回抽的动作条件下，注射者使用本发明的针头结构100即可安心的注射，不但增加了手术的安全性，还可避免许多不必要的医疗纠纷。另外值得一提的是，在穿刺前，注射者要先打开壳体300的开关部330，因为开关部330可以让第二腔室420内的空气保持大气压力，所以一旦针尖在血管内，注射者马上可以看到回血而停止注射。当注射者确定欲注射的位置并确定不再移动之后，即可将开关部330的阀门关闭，然后进入注射步骤。In the puncture step, the injector can utilize the second chamber 420 to confirm the blood return condition, the principle of which is mainly to utilize the capillary phenomenon and the pressure of the arteriovenous body itself. If the needle port 220 is stuck to the blood vessel, the blood in the blood vessel will flow from the second chamber 420 to the opening 320. Since the housing wall 340 is transparent material adjacent to the opening 320, the injector can directly observe whether there is blood return. The phenomenon occurs. The above procedure is like when the blood is drawn. In order to confirm whether the needle tip has entered the blood vessel, the blood donor will observe the blood returning condition in the hard plastic shell 300 of the needle. This is because the blood of the blood vessel has a certain pressure. The air in the tip of the needle is pushed out, and the blood is then ran into the housing 300 to which the needle is attached. The second chamber 420 of the present invention has such a function that the interior of the second chamber 420 is air-free, but is not interconnected with the injection substance of the first chamber 410, so the first chamber 410 and the second chamber The chambers 420 are all separate spaces. At the time of injection, the second chamber 420 maintains atmospheric pressure, but once the needle tip is stuck inside the blood vessel, the injecting person can immediately observe the blood returning from the transparent hard plastic housing 300 of the needle because of the capillary phenomenon and the pressure of the arteriovenous vein. phenomenon. Compared with the known needle, the needle structure 100 of the present invention can achieve the effect of determining whether the needle is in the blood vessel without the action of the back pumping, and the injector can see that there is no blood return in the puncture step. It is possible to confirm that the needle tip is not in the blood vessel. Therefore, under the condition of no withdrawal, the injecting person can use the needle structure 100 of the present invention to safely inject, which not only increases the safety of the operation, but also avoids many unnecessary medical disputes. In addition, it is worth mentioning that before the puncture, the injector first opens the switch portion 330 of the housing 300, because the switch portion 330 can keep the air in the second chamber 420 at atmospheric pressure, so once the needle tip is in the blood vessel, the injection is performed. The person can immediately see the blood return and stop the injection. When the injector determines the position to be injected and determines that it is no longer moving, the valve of the switch portion 330 can be closed and then enter the injection step.
由于注射步骤是将填充物注射至非血管的组织内，若于穿刺步骤后确定 没有回血，注射者在确知针尖不在血管内之后，即可推针筒让第一腔室410内的填充物顺利进入组织内。此外，在注射步骤中，开关部330关闭阀门可以使空气留在第二腔室420内，并保持第二腔室420的固定气体压力，进而让第一腔室410的填充物不致因压力的关系回流到第二腔室420内，致使第二腔室420内的空间依然保持畅通而不被堵塞。此外，填充物往往需要多点的注射，而注射者可以在拔出针头结构100后，再度使用此针头结构100进行下一个位置的治疗，这时只要再把开关部330的阀门打开，第二腔室420即可再度恢复侦测回血的功能。借此，本发明的针头结构100能够让注射者在针尖进入到皮肤之后，无需经过回抽即可得知针尖是否在血管内，因此注射者在施打时能避免填充物打入血管而造成血管栓塞，进而提高了手术的安全性。Since the injection step is to inject the filler into the non-vascular tissue, if it is determined after the puncture step Without returning blood, the injector can push the syringe to allow the filler in the first chamber 410 to smoothly enter the tissue after confirming that the needle tip is not in the blood vessel. In addition, in the injection step, the switch portion 330 closes the valve to allow air to remain in the second chamber 420 and maintain the fixed gas pressure of the second chamber 420, thereby preventing the filling of the first chamber 410 from being stressed. The relationship flows back into the second chamber 420, causing the space within the second chamber 420 to remain unblocked. In addition, the filling often requires multiple injections, and the injector can use the needle structure 100 again for the treatment of the next position after the needle structure 100 is withdrawn, in which case the valve of the switch portion 330 is opened again, and the second The chamber 420 can resume the function of detecting blood return. Thereby, the needle structure 100 of the present invention enables the injector to know whether the needle tip is in the blood vessel after the needle tip enters the skin, so that the injection can prevent the filler from entering the blood vessel when the application is performed. Vascular embolization, which in turn improves the safety of the operation.
请一并参阅图6与图7，图6是绘示本发明另一实施例的针头结构100a的侧视图。图7是绘示图6的剖线7-7的剖视图。如图所示，针头结构100a用以注射填充物，此针头结构100a包含内针部500与外针部600。Please refer to FIG. 6 and FIG. 7. FIG. 6 is a side view of the needle structure 100a according to another embodiment of the present invention. Figure 7 is a cross-sectional view taken along line 7-7 of Figure 6. As shown, the needle structure 100a is used to inject a filler, and the needle structure 100a includes an inner needle portion 500 and an outer needle portion 600.
内针部500包含第一针体510与第一壳体520。第一针体510包含针体腔室512与针口514，针体腔室512连接针口514。而第一壳体520则连接第一针体510，且第一壳体520包含壳体腔室522。壳体腔室522连通针体腔室512而形成第一腔室530，第一腔室530装有填充物且连通针口514。The inner needle portion 500 includes a first needle body 510 and a first housing 520. The first needle 510 includes a needle chamber 512 and a needle port 514, and the needle chamber 512 is coupled to the needle port 514. The first housing 520 is connected to the first needle 510, and the first housing 520 includes a housing chamber 522. The housing chamber 522 communicates with the needle chamber 512 to form a first chamber 530 that is filled with a filler and communicates with the needle port 514.
外针部600环设于内针部500的外侧，且外针部600包含第二针体610与第二壳体620。其中第二针体610环设于第一针体510的外侧，且回血口612开设于第二针体610上。此外，第二壳体620连接第二针体610且环设于第一壳体520之外侧。开孔622与开关部624均开设于第二壳体620上。再者，外针部600与内针部500之间形成第二腔室630，第二腔室630与第一腔室530彼此隔离，且第二腔室630连接回血口612与开孔622。而开关部624与图4A、4B的开关部330的结构相同，不再赘述。另外，第二壳体620是由硬质塑胶所制成，其可呈透明或半透明状，而本实施例的第二壳体 620为透明状，其可让注射者快速地分辨是否有血液进入第二腔室630之中。借此，本发明的针头结构100a通过内针部500与外针部600形成特殊的环状腔室，其可用来确认回血的状况，而且能让注射者在施打时避免填充物打入血管而造成血管栓塞，大幅地提高手术的安全性。The outer needle portion 600 is annularly disposed outside the inner needle portion 500, and the outer needle portion 600 includes a second needle body 610 and a second housing 620. The second needle 610 is disposed on the outer side of the first needle 510, and the blood return port 612 is opened on the second needle 610. In addition, the second housing 620 is connected to the second needle body 610 and is disposed on the outer side of the first housing 520. The opening 622 and the switch portion 624 are both open on the second housing 620. Furthermore, a second chamber 630 is formed between the outer needle portion 600 and the inner needle portion 500. The second chamber 630 is isolated from the first chamber 530, and the second chamber 630 is connected to the blood return port 612 and the opening 622. The switch unit 624 has the same configuration as that of the switch unit 330 of FIGS. 4A and 4B and will not be described again. In addition, the second housing 620 is made of a hard plastic, which may be transparent or translucent, and the second housing of the embodiment 620 is transparent, which allows the injector to quickly resolve whether blood has entered the second chamber 630. Thereby, the needle structure 100a of the present invention forms a special annular chamber through the inner needle portion 500 and the outer needle portion 600, which can be used to confirm the blood returning condition, and can prevent the injector from entering the blood vessel during the application. The cause of vascular embolization greatly improves the safety of the operation.
图8是绘示本发明又一实施例的针头结构100b的立体示意图。此针头结构100b包含第一针体710、第一壳体720、第二针体730以及第二壳体740。其中第一针体710包含第一针体腔室712与第一针口714，第一针体腔室712连接第一针口714，且第一针体710的剖面可呈圆形、椭圆形、矩形或多边形。第一壳体720连接第一针体710，且第一壳体720包含第一壳体腔室722，第一针体腔室712连通第一壳体腔室722而形成第一腔室702。再者，第二针体730固接第一针体710，两者彼此贴合，且第二针体730的剖面也可呈圆形、椭圆形、矩形或多边形。第二针体730包含第二针体腔室732与第二针口734。第二针体腔室732连接第二针口734，且第二针口734邻近第一针口714。此外，第二壳体740连接第二针体730，且第二壳体740包含第二壳体腔室742、开孔744、开关部746以及壳体壁748。第二针体腔室732连通第二壳体腔室742而形成第二腔室704。第一腔室702与第二腔室704彼此隔离。第一腔室702装有填充物，而第二腔室704连接第二针口734与开孔744。而开关部746装设于壳体壁748上，且开关部746可打开或关闭开孔744。再者，第二壳体740之壳体壁748部分呈透明状，其可让注射者快速地分辨是否有血液进入第二腔室704之中。本实施例的开关部746为一盖子，其枢接于壳体壁748的边缘。当开关部746盖合壳体壁748时，第二腔室704与外界的空气隔绝。而此开关部746也可通过手动的方式来操控。另外值得一提的是，第二针体730的一端可呈弯曲状，也即第二针体730靠近第二壳体740的部位呈弯曲状。此弯曲状的结构会造成第一壳体720的延伸方向与第二壳体740的延伸方向相交一夹角。此夹角可大于10度且小于90度。而本实施例的夹角为45度，其目的是让第二壳体740有足够的设置空间，而且 夹角过小会使第一壳体720与第二壳体740过于靠近，在操作开关部746时易造成不便。因此，本发明的针头结构100b不但可在不回抽的条件下确认回血的状况，避免填充物打入血管而造成血管栓塞以提高手术的安全性，而且操作方便，让注射者更能顺利地完成施打疗程。FIG. 8 is a perspective view showing a needle structure 100b according to still another embodiment of the present invention. The needle structure 100b includes a first needle body 710, a first housing 720, a second needle body 730, and a second housing 740. The first needle body 710 includes a first needle chamber 712 and a first needle port 714. The first needle body chamber 712 is connected to the first needle port 714, and the first needle body 710 has a circular, elliptical or rectangular cross section. Or a polygon. The first housing 720 is coupled to the first needle 710, and the first housing 720 includes a first housing chamber 722 that communicates with the first housing chamber 722 to form a first chamber 702. Furthermore, the second needle body 730 is fixed to the first needle body 710, and the two needle bodies 730 are attached to each other, and the second needle body 730 may have a circular, elliptical, rectangular or polygonal cross section. The second needle body 730 includes a second needle chamber 732 and a second needle port 734. The second needle chamber 732 is coupled to the second needle port 734 and the second needle port 734 is adjacent to the first needle port 714. Further, the second housing 740 is coupled to the second needle body 730, and the second housing 740 includes a second housing chamber 742, an opening 744, a switch portion 746, and a housing wall 748. The second needle chamber 732 communicates with the second housing chamber 742 to form a second chamber 704. The first chamber 702 and the second chamber 704 are isolated from each other. The first chamber 702 is filled with a filler and the second chamber 704 is connected to the second needle 734 and the opening 744. The switch portion 746 is mounted on the housing wall 748, and the switch portion 746 can open or close the opening 744. Moreover, the portion of the housing wall 748 of the second housing 740 is transparent, which allows the injector to quickly resolve whether blood has entered the second chamber 704. The switch portion 746 of the present embodiment is a cover that is pivotally connected to the edge of the housing wall 748. When the switch portion 746 covers the housing wall 748, the second chamber 704 is isolated from the outside air. The switch portion 746 can also be manipulated manually. It is also worth mentioning that one end of the second needle body 730 can be curved, that is, the portion of the second needle body 730 close to the second housing 740 is curved. The curved structure causes the extending direction of the first housing 720 to intersect the extending direction of the second housing 740 at an angle. This angle can be greater than 10 degrees and less than 90 degrees. The angle of the embodiment is 45 degrees, the purpose of which is to provide sufficient space for the second housing 740, and If the angle is too small, the first housing 720 and the second housing 740 are too close, which may cause inconvenience when the switch portion 746 is operated. Therefore, the needle structure 100b of the present invention can confirm the blood returning condition without the withdrawal, avoid the filling of the blood vessel into the blood vessel, thereby causing the blood vessel embolization to improve the safety of the operation, and the operation is convenient, so that the injector can be more smoothly. Complete the treatment.
图9是绘示本发明再一实施例的针头结构100c的侧视图。此针头结构100c包含针体800、壳体300以及分隔件400。配合参阅图1，图9的实施方式中，壳体300与分隔件400均分别与图3中壳体300与分隔件400相同，不再赘述。特别的是，图9实施方式的针头结构100c为钝针，其针体800的前端呈圆弧状。其中分隔件400设于针头空腔102中，且分隔件400将针头空腔102分隔出第一腔室410与第二腔室420。第一腔室410与第二腔室420彼此隔离。而且分隔件400将针口220分隔出注射口430与回血口440。第一腔室410装有填充物且连通注射口430，而第二腔室420则连接回血口440与开孔320。由于针口220位于前端的侧边，因此注射口430与回血口440均开设于针体800前端的侧边。值得一提的是，分隔件400靠近针口220的前端与注射口430之间仍有一段间隔，可以让注射填充物与监测回血情况同时进行。此外，若分隔件400的前端与注射口430切齐，则注射者在操作针头结构100c时可能会发生注射口430在血管内而回血口440在血管外的状况，而本实施例可以避免此状况发生。借此，针头结构100c具有不连通的第一腔室410与第二腔室420，第一腔室410装有填充物，而第二腔室420为透明且壳体300设有开孔320与开关部330，用以确认回血的状况。当开孔320打开时可确认回血状况，若关闭时可避免注射填充物进入第二腔室420。整体结构可使注射者在施打时避免填充物打入血管中，进而提高了手术的安全性。Figure 9 is a side elevational view of a needle structure 100c in accordance with still another embodiment of the present invention. This needle structure 100c includes a needle body 800, a housing 300, and a spacer 400. Referring to FIG. 1 , in the embodiment of FIG. 9 , the housing 300 and the partition 400 are respectively the same as the housing 300 and the partition 400 in FIG. 3 , and details are not described herein again. In particular, the needle structure 100c of the embodiment of Fig. 9 is a blunt needle, and the front end of the needle body 800 has an arc shape. Wherein the divider 400 is disposed in the needle cavity 102 and the divider 400 separates the needle cavity 102 from the first chamber 410 and the second chamber 420. The first chamber 410 and the second chamber 420 are isolated from each other. Moreover, the divider 400 separates the needle port 220 from the injection port 430 and the blood return port 440. The first chamber 410 is filled with a filler and communicates with the injection port 430, while the second chamber 420 is connected to the blood return port 440 and the opening 320. Since the needle port 220 is located at the side of the front end, both the injection port 430 and the blood return port 440 are opened on the side of the front end of the needle body 800. It is worth mentioning that there is still a gap between the front end of the spacer 400 near the needle port 220 and the injection port 430, so that the injection filler can be simultaneously performed with the monitoring of the blood return. In addition, if the front end of the partitioning member 400 is aligned with the injection port 430, the injector may operate the needle structure 100c when the injection port 430 is inside the blood vessel and the blood return port 440 is outside the blood vessel. This embodiment can avoid this. The situation has occurred. Thereby, the needle structure 100c has a first chamber 410 and a second chamber 420 that are not connected, the first chamber 410 is filled with a filler, and the second chamber 420 is transparent and the housing 300 is provided with an opening 320 and The switch unit 330 is for confirming the status of blood return. The blood return condition can be confirmed when the opening 320 is open, and the injection of the filler into the second chamber 420 can be avoided if closed. The overall structure allows the injector to prevent the filler from entering the blood vessel during the application, thereby improving the safety of the operation.
图10A是绘示本发明另一实施例的针头结构100d于确认回血时的侧视图。图10B是绘示图10A的针头结构100d于注射时的侧视图。如图所示，此针头结构100d包含针体200、壳体300、分隔件400a以及导管900。此针 体200为尖针。在第10A与10B图的实施方式中，针体200与壳体300均分别与第2图中针体200与壳体300相同，不再赘述。特别的是，第10A与10B图实施方式的针头结构100d之分隔件400a设于针头空腔102中且具有第一分隔部402a、第二分隔部404以及回血口440，此分隔件400a将针头空腔102分隔出第一腔室410与第二腔室420。回血口440连通第一腔室410与第二腔室420，且回血口440邻近针口220。回血口440介于第一分隔部402a与第二分隔部404之间，而且回血口440具有一口径D3。第一分隔部402a的一端连接针体200的内壁，而另一端则连接壳体壁340的内缘。第二分隔部404则位于针体腔室210且其侧视图呈L形。仔细地说，第二腔室420连接回血口440与壳体300的开孔320，使第二腔室420介于回血口440与开孔320之间。回血口440与针口220相隔一第一间距D1。再者，导管900具有注射口910与管壁920，此导管900可位移地穿设于第一腔室410之中且装有填充物。管壁920与第一腔室410的形状相同。当注射者操作针头结构100d时，会实施两个步骤。第一个步骤是为确认回血情况，在此步骤中，注射者将导管900穿入第一腔室410里并让注射口910位移到一特定位置，致使注射口910与针口220之间的第二间距D2大于第一间距D1。此时第二腔室420与针口220连通，可以让注射者通过回血的状况确认是否打到血管，如图10A所示。第二个步骤则为注射填充物，在此步骤中，注射者会先将导管900往针口220的方向再进一步推进一段间隔，使注射口910与针口220之间的第二间距D2小于等于第一间距D1，此时导管900的管壁920封闭回血口440，令第一腔室410与第二腔室420彼此隔离。然后，注射者将导管900内的填充物注射至针口220处，最后抽出针体200而完成注射程序。此种结构可以避免填充物于注射时进入第二腔室420而形成堵塞，能降低清洁的困难度。另外值得一提的是，当注射完成后，导管900可以抽离第一腔室410而丢弃更换，而针体200在清洁杀菌过后可以回收使用，并配合另一装有填充物的导管900继续下一次注射，此种结构与操作不但能降低制造成本，而且操作 方便简单又安全。由于填充物属于黏稠状，一般传统注射的针头结构容易造成填充物的堵塞而无法使用，而本发明不但可以让注射者能顺利且安心地完成施打疗程，还可大幅地降低被施打者发生副作用或意外之风险。FIG. 10A is a side view showing the needle structure 100d according to another embodiment of the present invention when blood return is confirmed. Figure 10B is a side elevational view of the needle structure 100d of Figure 10A as it is injected. As shown, the needle structure 100d includes a needle body 200, a housing 300, a divider 400a, and a catheter 900. This needle Body 200 is a sharp needle. In the embodiment of FIGS. 10A and 10B, the needle body 200 and the housing 300 are respectively the same as the needle body 200 and the housing 300 in FIG. 2, and will not be described again. In particular, the spacer 400a of the needle structure 100d of the embodiment of FIGS. 10A and 10B is disposed in the needle cavity 102 and has a first partition 402a, a second partition 404, and a blood return port 440, the spacer 400a will be a needle The cavity 102 separates the first chamber 410 from the second chamber 420. The blood return port 440 communicates with the first chamber 410 and the second chamber 420, and the blood return port 440 is adjacent to the needle port 220. The blood return port 440 is interposed between the first partition portion 402a and the second partition portion 404, and the blood return port 440 has a diameter D3. One end of the first partition portion 402a is connected to the inner wall of the needle body 200, and the other end is connected to the inner edge of the housing wall 340. The second partition 404 is located in the needle chamber 210 and has an L-shaped side view. In detail, the second chamber 420 is coupled to the blood return port 440 and the opening 320 of the housing 300 such that the second chamber 420 is interposed between the blood return port 440 and the opening 320. The blood return port 440 is spaced apart from the needle port 220 by a first distance D1. Furthermore, the catheter 900 has an injection port 910 and a tube wall 920 that is displaceably disposed in the first chamber 410 and is filled with a filler. The tube wall 920 has the same shape as the first chamber 410. When the injector operates the needle structure 100d, two steps are performed. The first step is to confirm the blood return condition. In this step, the injector penetrates the catheter 900 into the first chamber 410 and displaces the injection port 910 to a specific position, such that the injection port 910 and the needle port 220 are The second pitch D2 is greater than the first pitch D1. At this time, the second chamber 420 is in communication with the needle port 220, so that the injector can confirm whether or not the blood vessel is hit by the condition of blood return, as shown in FIG. 10A. The second step is to inject the filling. In this step, the injector will further advance the catheter 900 toward the needle port 220 for a further interval, so that the second spacing D2 between the injection port 910 and the needle port 220 is less than Equal to the first spacing D1, the tube wall 920 of the catheter 900 closes the blood return port 440, thereby isolating the first chamber 410 from the second chamber 420. Then, the injector injects the filler in the catheter 900 to the needle port 220, and finally withdraws the needle body 200 to complete the injection procedure. Such a structure can prevent the filler from entering the second chamber 420 at the time of injection to form a blockage, which can reduce the difficulty of cleaning. It is also worth mentioning that after the injection is completed, the catheter 900 can be withdrawn from the first chamber 410 and discarded for replacement, and the needle 200 can be recycled after cleaning and sterilization, and continues with another filler-equipped catheter 900. The next injection, this structure and operation not only reduces manufacturing costs, but also operates Convenient and simple. Since the filler is viscous, the conventional injection needle structure is easy to cause clogging of the filler and cannot be used, and the invention not only allows the injector to smoothly and safely complete the treatment, but also greatly reduces the occurrence of the beating person. The risk of side effects or accidents.
图11A是绘示本发明另一实施例的针头结构100e于确认回血时的侧视图。图11B是绘示图11A的针头结构100e于注射时的侧视图。如图所示，此针头结构100e包含针体200、壳体300、分隔件400b以及导管900。在图11A与图11B的实施方式中，针体200、壳体300以及导管900均分别与图10A、图10B中针体200、壳体300以及导管900相同，不再赘述。特别的是，图11A与图11B实施方式的针头结构100e的分隔件400b具有第一分隔部402b、第二分隔部404以及回血口440，此分隔件400b将针头空腔102分隔出第一腔室410与第二腔室420。此外，第一分隔部402b较图10A的第一分隔部402a为短，因此图11A、11B的针头结构100e的回血口440的口径D3大于图10A、10B的针头结构100d的回血口440的口径D3。换句话说，第一分隔部402b仅设于壳体300内，而靠近针口220的第二分隔部404则设于针体200内，针体200的针体腔室210并无第一分隔部402b。在这样的结构条件下，针体200可以制作成更细的管体，亦即可制成管径更小的针体200，进而缩小针体200穿刺所造成的伤口大小。另外，当注射者操作针头结构100e时，一样会实施两个步骤。第一个步骤是为确认回血情况，在此步骤中，注射者将导管900穿入针体腔室210里并让注射口910位移到一特定位置，致使注射口910与针口220之间的第二间距D2大于第一间距D1。此时导管900的外壁与针体200的内壁之间会形成一空室422，此空室422属于第二腔室420的一部分，而且空室422与针口220彼此连通，可以让注射者通过回血的状况确认是否打到血管，如图11A所示。第二个步骤则为注射填充物，在此步骤中，注射者会先将导管900往针口220的方向再进一步推进一段间隔，使注射口910与针口220之间的第二间距D2小于等于第一间距D1，此时导管900的管壁920封闭回血口440，令空室422与针口220彼此隔离。然后， 注射者将导管900内的填充物注射至针口220处。最后，当填充物注射完毕时，导管900会被抽出针体200以及第一腔室410而完成注射程序。此种结构可以避免填充物于注射时进入空室422而造成堵塞，不但能降低清洁的困难度，而且其结构配合注射操作对于一般的注射者而言既方便简单又安全稳定。Figure 11A is a side elevational view of the needle structure 100e in accordance with another embodiment of the present invention in confirming blood return. Figure 11B is a side elevational view of the needle structure 100e of Figure 11A as it is injected. As shown, the needle structure 100e includes a needle body 200, a housing 300, a divider 400b, and a catheter 900. In the embodiment of FIG. 11A and FIG. 11B, the needle body 200, the housing 300, and the catheter 900 are respectively the same as the needle body 200, the housing 300, and the catheter 900 in FIGS. 10A and 10B, respectively, and will not be described again. In particular, the spacer 400b of the needle structure 100e of the embodiment of FIGS. 11A and 11B has a first partition 402b, a second partition 404, and a blood return port 440 that separates the needle cavity 102 from the first cavity. Room 410 and second chamber 420. In addition, the first partition portion 402b is shorter than the first partition portion 402a of FIG. 10A, so the diameter D3 of the blood return port 440 of the needle structure 100e of FIGS. 11A and 11B is larger than the diameter of the blood return port 440 of the needle structure 100d of FIGS. 10A and 10B. D3. In other words, the first partition portion 402b is only disposed in the housing 300, and the second partition portion 404 near the needle port 220 is disposed in the needle body 200, and the needle body chamber 210 of the needle body 200 has no first partition portion. 402b. Under such structural conditions, the needle body 200 can be made into a thinner tube body, and the needle body 200 having a smaller diameter can be formed, thereby reducing the size of the wound caused by the needle body 200 puncture. In addition, when the injector operates the needle structure 100e, two steps are performed as well. The first step is to confirm the blood return condition. In this step, the injector penetrates the catheter 900 into the needle chamber 210 and displaces the injection port 910 to a specific position, so that the first between the injection port 910 and the needle port 220 The two pitches D2 are greater than the first pitch D1. At this time, an empty chamber 422 is formed between the outer wall of the catheter 900 and the inner wall of the needle body 200. The empty chamber 422 belongs to a part of the second chamber 420, and the empty chamber 422 and the needle port 220 communicate with each other, so that the injecting person can pass the blood return. The condition confirms whether or not the blood vessel is hit, as shown in Fig. 11A. The second step is to inject the filling. In this step, the injector will further advance the catheter 900 toward the needle port 220 for a further interval, so that the second spacing D2 between the injection port 910 and the needle port 220 is less than Equal to the first spacing D1, the tube wall 920 of the catheter 900 closes the blood return port 440, thereby isolating the empty chamber 422 from the needle port 220. Then, The injector injects the filler within the catheter 900 to the needle port 220. Finally, when the filling is completed, the catheter 900 is withdrawn from the needle 200 and the first chamber 410 to complete the injection procedure. The structure can prevent the filler from entering the empty chamber 422 during the injection and cause clogging, which not only reduces the difficulty of cleaning, but also has the structure and the injection operation is convenient, simple, safe and stable for the general injector.
图12A是绘示本发明再一实施例的针头结构100f***血管104的示意图。图12B是绘示图12A的针头结构100f在注射时的示意图。如图所示，此针头结构100f包含针体200、壳体300a、导管900、螺纹部930、转动部940以及注射筒950。其中针体200可为钝针或尖针，本实施例为尖针，而且针体200包含针体腔室210、针口220以及分隔件400c，针体腔室210连接针口220，分隔件400c设于针体腔室210的内缘。壳体300a连接针体200，且壳体300a包含壳体腔室310、开孔320以及壳体壁340。开孔320连通壳体腔室310且穿设于壳体壁340上，针体腔室210连通壳体腔室310。再者，导管900具有注射口910与管壁920，导管900可位移地穿设于壳体腔室310与针体腔室210且装有填充物。分隔件400c与针口220相隔一第一间距D1，而注射口910与针口220相隔一第二间距D2。本实施例的针头结构100f并无装设开关部，而螺纹部930连接于导管900与转动部940之间。转动部940的一端连接螺纹部930，另一端则连接注射筒950。当注射者旋转转动部940时，导管900、螺纹部930、转动部940及注射筒950均同步旋转，致使注射口910与针口220之间的第二间距D2得以调整。另外，在图12A的实施例中，第一间距D1小于第二间距D2，分隔件400c与管壁920分离而形成一回血口440。由于针体200的针口220***血管104当中，因此血液会通过针体腔室210流进壳体腔室310，而注射者可通过透明或半透明的壳体300a来观察回血的状况，并得知针口220已位于血管104内。此时注射者将停止施打填充物，并改变施打的位置，亦即改变针口220的位置，以确保填充物不会注入血管104内而引起堵塞。而在图12B的实施例中，针体200的针口220 ***非血管组织106当中，注射者旋转转动部940而使第二间距D2缩小。非血管组织106为没有血管104的组织。当第一间距D1大于等于第二间距D2时，管壁920连接分隔件400c，借以令回血口440封闭，这时注射者可施打填充物至非血管组织106中，大幅地增加了手术的安全性，因此对于注射者与患者而言，可以说是医患双赢。FIG. 12A is a schematic view showing the insertion of the needle structure 100f into the blood vessel 104 according to still another embodiment of the present invention. Figure 12B is a schematic view of the needle structure 100f of Figure 12A as it is being injected. As shown, the needle structure 100f includes a needle body 200, a housing 300a, a catheter 900, a threaded portion 930, a rotating portion 940, and a syringe 950. The needle body 200 can be a blunt needle or a sharp needle. In this embodiment, the needle is a needle. The needle body 200 includes a needle chamber 210, a needle port 220 and a partition 400c. The needle chamber 210 is connected to the needle port 220, and the partition 400c is provided. At the inner edge of the needle chamber 210. The housing 300a is coupled to the needle body 200, and the housing 300a includes a housing chamber 310, an opening 320, and a housing wall 340. The opening 320 communicates with the housing chamber 310 and is disposed through the housing wall 340. The needle chamber 210 communicates with the housing chamber 310. Furthermore, the catheter 900 has an injection port 910 and a tube wall 920. The catheter 900 is movably disposed through the housing chamber 310 and the needle chamber 210 and is filled with a filler. The partition 400c is spaced apart from the needle port 220 by a first spacing D1, and the injection port 910 is spaced apart from the needle port 220 by a second spacing D2. The needle structure 100f of the present embodiment is not provided with a switch portion, and the screw portion 930 is connected between the catheter 900 and the rotating portion 940. One end of the rotating portion 940 is connected to the threaded portion 930, and the other end is connected to the syringe 950. When the injector rotates the rotating portion 940, the catheter 900, the threaded portion 930, the rotating portion 940, and the syringe 950 are all rotated synchronously, so that the second spacing D2 between the injection port 910 and the needle port 220 is adjusted. In addition, in the embodiment of FIG. 12A, the first spacing D1 is smaller than the second spacing D2, and the partition 400c is separated from the tube wall 920 to form a blood return port 440. Since the needle port 220 of the needle 200 is inserted into the blood vessel 104, blood flows into the housing chamber 310 through the needle chamber 210, and the injector can observe the blood return condition through the transparent or translucent housing 300a, and learns The needle port 220 is already located within the blood vessel 104. At this time, the injector will stop applying the filler and change the position of the application, that is, change the position of the needle 220 to ensure that the filler is not injected into the blood vessel 104 to cause clogging. In the embodiment of FIG. 12B, the needle port 220 of the needle 200 Inserted into the non-vascular tissue 106, the injector rotates the rotating portion 940 to reduce the second pitch D2. Non-vascular tissue 106 is tissue without blood vessels 104. When the first spacing D1 is greater than or equal to the second spacing D2, the tube wall 920 is connected to the partition 400c, so that the blood return port 440 is closed, and the injector can apply the filling material to the non-vascular tissue 106, which greatly increases the operation. Safety, so for the injector and the patient, it can be said that the doctor and patient win-win.
请一并参阅图13A、13B，图13A是绘示本发明另一实施例的针头结构100g的外针部600的剖视图。图13B是绘示图13A的针头结构100g于注射时的侧视图。如图所示，此针头结构100g用以同时注射填充物并监测回血情况，且包含内针部500与外针部600。13A and 13B, FIG. 13A is a cross-sectional view showing the outer needle portion 600 of the needle structure 100g according to another embodiment of the present invention. Figure 13B is a side elevational view of the needle structure 100g of Figure 13A as it is injected. As shown, the needle structure 100g is used to simultaneously inject a filler and monitor blood return, and includes an inner needle portion 500 and an outer needle portion 600.
内针部500包含第一针体510与第一壳体520。第一针体510包含针体腔室512与针口514，针体腔室512连接针口514。而第一壳体520则连接第一针体510，且第一壳体520包含壳体腔室522。壳体腔室522连通针体腔室512而形成第一腔室530，第一腔室530装有填充物且连通针口514。另外，外针部600环设于内针部500的外侧，且外针部600包含第二针体610与第二壳体620。其中第二针体610环设于第一针体510的外侧，且回血口612开设于第二针体610上。第二壳体620连接第二针体610且环设于第一壳体520的外侧。此外，第二壳体620可包含近端部620a与远端部620b。近端部620a具有二端，其中一端连接第二针体610，另一端则连接远端部620b。远端部620b的前端嵌接近端部620a，且远端部620b设有一开孔622。内针部500可位移地定位于近端部620a与远端部620b。再者，当内针部500***外针部600时，外针部600与内针部500之间形成第二腔室630，第二腔室630与第一腔室530彼此隔离。本实施例的针头结构100g并无装设开关部于第二壳体620，第二壳体620是由硬质塑胶所制成，其可呈透明或半透明状。开孔622通过近端部620a与第二针体610连通回血口612，其可让注射者快速地分辨是否有血液进入第二腔室630之中，进而推知外针部600的第二针体610是否插到血管。另外，当第一针体510***第二针体610时，注射者可 将内针部500内的填充物注射至针口514处，如图13B所示。借此，本发明的针头结构100g通过内针部500与外针部600所形成的特殊结构来确认回血的状况，而且能让注射者在施打时避免填充物打入血管而造成血管栓塞，大幅地提高手术的安全性。The inner needle portion 500 includes a first needle body 510 and a first housing 520. The first needle 510 includes a needle chamber 512 and a needle port 514, and the needle chamber 512 is coupled to the needle port 514. The first housing 520 is connected to the first needle 510, and the first housing 520 includes a housing chamber 522. The housing chamber 522 communicates with the needle chamber 512 to form a first chamber 530 that is filled with a filler and communicates with the needle port 514. Further, the outer needle portion 600 is annularly disposed outside the inner needle portion 500, and the outer needle portion 600 includes the second needle body 610 and the second housing 620. The second needle 610 is disposed on the outer side of the first needle 510, and the blood return port 612 is opened on the second needle 610. The second housing 620 is connected to the second needle body 610 and is disposed on the outer side of the first housing 520 . Additionally, the second housing 620 can include a proximal end 620a and a distal end 620b. The proximal end portion 620a has two ends, one end of which is connected to the second needle body 610, and the other end is connected to the distal end portion 620b. The front end of the distal end portion 620b is embedded near the end portion 620a, and the distal end portion 620b is provided with an opening 622. The inner needle portion 500 is displaceably positioned at the proximal end portion 620a and the distal end portion 620b. Furthermore, when the inner needle portion 500 is inserted into the outer needle portion 600, a second chamber 630 is formed between the outer needle portion 600 and the inner needle portion 500, and the second chamber 630 and the first chamber 530 are isolated from each other. The needle structure 100g of the embodiment does not have a switch portion disposed on the second housing 620. The second housing 620 is made of a hard plastic material, which may be transparent or translucent. The opening 622 communicates with the second needle 610 through the proximal end portion 620a to the blood return port 612, which allows the injector to quickly distinguish whether or not blood enters the second chamber 630, thereby inferring the second needle body of the outer needle portion 600. Whether the 610 is inserted into the blood vessel. In addition, when the first needle 510 is inserted into the second needle 610, the injector may The filler in the inner needle portion 500 is injected to the needle port 514 as shown in Fig. 13B. Thereby, the needle structure 100g of the present invention confirms the blood returning condition by the special structure formed by the inner needle portion 500 and the outer needle portion 600, and allows the injector to prevent the filler from entering the blood vessel and causing the blood vessel to embolize when the application is performed. Significantly improve the safety of surgery.
图13C是绘示本发明又一实施例的针头结构100h的侧视图。此针头结构100h包含内针部500与外针部600。外针部600包含第二针体610、第二壳体620、连接座640以及注射组件1000。第二壳体620设有一开孔622。其中内针部500、第二针体610及第二壳体620与图13A、13B中针头结构100g的内针部500、第二针体610及第二壳体620的结构相同，不再赘述。特别的是，外针部600还包含连接座640以及注射组件1000，连接座640连通开孔622且连接第二壳体620。连接座640与第二壳体620的连接方式为可拆卸地连接或一体连接，而本实施例为一体连接。连接座640是由硬质塑胶所制成，其可连接各式各样的注射组件1000，用以排气、排血或是造成负压。此外，注射组件1000连接连接座640，亦即注射组件1000通过连接座640连通第二壳体620。注射组件1000包含注射壳体1010与注射杆1020。注射壳体1010可拆卸地连接连接座640。注射杆1020则设于注射壳体1010且可位移地定位于注射壳体1010内。当注射杆1020受注射者推进时，注射组件1000会提供冲力以清洁第二针体610与第二壳体620的内部。换句话说，如果有回血的状况发生时，连接座640结合注射组件1000的结构可以把残留血液排掉而让针头结构100h继续使用，进而降低更换针头的成本。Figure 13C is a side elevational view of a needle structure 100h in accordance with yet another embodiment of the present invention. This needle structure 100h includes an inner needle portion 500 and an outer needle portion 600. The outer needle portion 600 includes a second needle body 610, a second housing 620, a connector 640, and an injection assembly 1000. The second housing 620 is provided with an opening 622. The inner needle portion 500, the second needle body 610, and the second housing 620 have the same structure as the inner needle portion 500, the second needle body 610, and the second housing 620 of the needle structure 100g of FIGS. 13A and 13B, and the description thereof will not be repeated. . In particular, the outer needle portion 600 further includes a connecting seat 640 and an injection assembly 1000 that communicates with the opening 622 and connects the second housing 620. The connection between the connecting seat 640 and the second housing 620 is detachably connected or integrally connected, and the embodiment is an integral connection. The connector 640 is made of a rigid plastic that can be coupled to a wide variety of injection assemblies 1000 for venting, bleeding, or creating a negative pressure. In addition, the injection assembly 1000 is coupled to the connector 640, that is, the injection assembly 1000 is coupled to the second housing 620 through the connector 640. The injection assembly 1000 includes an injection housing 1010 and an injection rod 1020. The injection housing 1010 is detachably coupled to the connector 640. The injection rod 1020 is then disposed in the injection housing 1010 and is displaceably positioned within the injection housing 1010. When the injection rod 1020 is advanced by the injector, the injection assembly 1000 provides an impulse to clean the interior of the second needle 610 and the second housing 620. In other words, if a blood return condition occurs, the connector 640 in combination with the structure of the injection assembly 1000 can drain the residual blood and allow the needle structure 100h to continue to be used, thereby reducing the cost of replacing the needle.
由上述实施方式可知，本发明具有下列优点：其一，本发明的针头结构能够让注射者在针尖进入到皮肤之后，利用血管内天然具有压力的原理，无需经过回抽即可得知针尖是否在血管内。其二，本发明的针头结构具有不连通的第一腔室与第二腔室，第一腔室装有填充物，第二腔室为透明且具有开孔，用以确认回血的状况。当开孔打开时可确认回血状况，若关闭时可避免注射填充物进入第二腔室，可使注射者在施打时避免填充物打入血管而造成 血管栓塞，进而提高手术的安全性。其三，特殊的针头结构使注射者能方便地操作，让注射者更能顺利地完成施打疗程。其四，特殊的双腔室结构搭配分隔件之设置可以达到同时注射填充物以及监测回血情况的效果。其五，本发明既可让注射者能顺利且安心地完成施打疗程，也可降低被施打者发生副作用或意外的风险。其六，利用连接座结合注射组件的结构可以把残留血液排掉而让针头结构继续使用，进而降低更换针头之成本。It can be seen from the above embodiments that the present invention has the following advantages: First, the needle structure of the present invention enables the injector to utilize the principle of natural pressure inside the blood vessel after the needle tip enters the skin, and whether the needle tip can be known without back pumping In the blood vessels. Second, the needle structure of the present invention has a first chamber and a second chamber that are not connected. The first chamber is filled with a filler, and the second chamber is transparent and has an opening for confirming the condition of blood return. When the opening is opened, the blood return condition can be confirmed. If the opening is closed, the injection of the filling material can be prevented from entering the second chamber, so that the injecting person can prevent the filling material from entering the blood vessel when the application is performed. Vascular embolization, which in turn improves the safety of the operation. Third, the special needle structure allows the injector to operate conveniently, allowing the injector to perform the treatment more smoothly. Fourth, the special double-chamber structure with the partition setting can achieve the effect of simultaneously injecting the filler and monitoring the blood return. Fifth, the present invention can not only enable the injecting person to complete the treatment process smoothly and with peace of mind, but also reduce the risk of side effects or accidents of the person being beaten. Sixth, the structure of the injection unit combined with the injection assembly can drain the residual blood and continue to use the needle structure, thereby reducing the cost of replacing the needle.
虽然本发明已以实施方式公开如上，然其并非用以限定本发明，任何本领域的一般技术人员，在不脱离本发明的精神和范围内，当可作各种的更动与润饰，因此本发明的保护范围当视权利要求所界定的为准。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person skilled in the art can make various modifications and retouchings without departing from the spirit and scope of the present invention. The scope of the invention is defined by the claims.

Claims (11)

  1. 一种针头结构，用以同时注射填充物并监测回血情况，其特征在于，所述针头结构包含：A needle structure for simultaneously injecting a filler and monitoring a blood return condition, characterized in that the needle structure comprises:
    针体，包含针体腔室与针口，所述针体腔室连接所述针口；a needle body comprising a needle body chamber and a needle port, the needle body chamber connecting the needle mouth;
    壳体，连接所述针体，所述壳体包含壳体腔室与开孔，所述针体腔室连通所述壳体腔室而形成针头空腔；以及a housing connecting the needle body, the housing including a housing chamber and an opening, the needle chamber communicating with the housing chamber to form a needle cavity;
    分隔件，设于所述针头空腔中，所述分隔件将所述针头空腔分隔出第一腔室与第二腔室，所述第一腔室与所述第二腔室彼此隔离，所述分隔件将所述针口分隔出注射口与回血口，所述第一腔室装有所述填充物且连通所述注射口，所述第二腔室连接所述回血口与所述开孔。a partitioning member disposed in the needle cavity, the partition separating the needle cavity from the first chamber and the second chamber, the first chamber and the second chamber being isolated from each other The partition separates the needle opening from an injection port and a blood return port, the first chamber is filled with the filler and communicates with the injection port, and the second chamber connects the blood return port with the Open the hole.
  2. 如权利要求1所述的针头结构，其特征在于，所述针体为钝针或尖针。A needle structure according to claim 1 wherein the needle body is a blunt needle or a sharp needle.
  3. 如权利要求1所述的针头结构，其特征在于，所述壳体设有开关部，所述开关部开闭所述开孔。A needle structure according to claim 1, wherein said housing is provided with a switch portion, and said switch portion opens and closes said opening.
  4. 一种针头结构，用以同时注射填充物并监测回血情况，其特征在于，所述针头结构包含：A needle structure for simultaneously injecting a filler and monitoring a blood return condition, characterized in that the needle structure comprises:
    内针部，包含：Inner needle section, including:
    第一针体，包含针体腔室与针口，所述针体腔室连接所述针口；a first needle body comprising a needle body chamber and a needle port, the needle body chamber being connected to the needle mouth;
    及and
    第一壳体，连接所述第一针体，所述第一壳体包含壳体腔室，所述壳体腔室连通所述针体腔室而形成第一腔室，所述第一腔室装有所述填充物且连通所述针口；以及a first housing connecting the first needle body, the first housing comprising a housing chamber, the housing chamber communicating with the needle chamber to form a first chamber, the first chamber being mounted The filler and communicating the needle port;
    外针部，环设于所述内针部的外侧，所述外针部包含开孔与回血口，且所述外针部与所述内针部之间形成第二腔室，所述第二腔室与所述第一腔室彼此隔离。 An outer needle portion is disposed on an outer side of the inner needle portion, the outer needle portion includes an opening and a blood return port, and a second chamber is formed between the outer needle portion and the inner needle portion, The two chambers are isolated from the first chamber.
  5. 如权利要求4所述的针头结构，其特征在于，所述外针部还包含：The needle structure of claim 4 wherein said outer needle portion further comprises:
    第二针体，环设于所述第一针体的外侧，所述回血口开设于所述第二针体上；以及a second needle body, the ring is disposed outside the first needle body, and the blood return port is opened on the second needle body;
    第二壳体，连接所述第二针体且环设于所述第一壳体的外侧，所述开孔开设于所述第二壳体上。The second housing is connected to the second needle body and is disposed on the outer side of the first housing, and the opening is formed on the second housing.
  6. 如权利要求5所述的针头结构，其特征在于，所述第二针体为钝针或尖针。A needle structure according to claim 5, wherein said second needle is a blunt needle or a sharp needle.
  7. 如权利要求5所述的针头结构，其特征在于，A needle structure according to claim 5, wherein
    所述第二壳体设有开关部，所述开关部开闭所述开孔；及The second housing is provided with a switch portion, and the switch portion opens and closes the opening; and
    所述第二腔室连接所述回血口与所述开孔。The second chamber connects the blood return port and the opening.
  8. 如权利要求5所述的针头结构，其特征在于，所述第二壳体包含：The needle structure of claim 5 wherein said second housing comprises:
    近端部，具有二端，其中所述一端连接所述第二针体；及a proximal end having two ends, wherein the one end is connected to the second needle; and
    远端部，连接所述另一端，所述开孔设于所述远端部上；a distal end portion connected to the other end, the opening being disposed on the distal end portion;
    其中所述内针部可位移地定位于所述近端部与所述远端部。Wherein the inner needle portion is displaceably positioned at the proximal end portion and the distal end portion.
  9. 如权利要求5所述的针头结构，其特征在于，所述外针部还包含：The needle structure of claim 5 wherein said outer needle portion further comprises:
    连接座，连通所述开孔且连接所述第二壳体；及a connecting seat connecting the opening and connecting the second housing; and
    注射组件，连接所述连接座，所述注射组件包含：An injection assembly connecting the connector, the injection assembly comprising:
    注射壳体，可拆卸地连接所述连接座；及An injection housing detachably connecting the connector; and
    注射杆，设于所述注射壳体且可位移地定位于所述注射壳体内。An injection rod is disposed in the injection housing and is displaceably positioned within the injection housing.
  10. 如权利要求4所述的针头结构，其特征在于，所述填充物为玻尿酸(Hyaluronic Acid)、羟基磷灰石钙(Calcium Hydroxyapatite，Radiesse)、聚己内酯(Polycaprolactone，Ellanse)、胶原蛋白(Collagen)、聚左旋乳酸(Poly-L-Lactic Acid，PLLA，Sculptra)、脂肪(Fat)、聚丙烯胺(Polyacrylamide，Aaquamid)、丙酮特安皮质醇(Triamcinolone Acetonide)或利多卡因(Lidocaine)。The needle structure according to claim 4, wherein the filler is Hyaluronic Acid, Calcium Hydroxyapatite (Radiesse), Polycaprolactone (Ellanse), Collagen ( Collagen), Poly-L-Lactic Acid (PLLA, Sculptra), Fat (Fat), Polyacrylamide (Aaquamid), Triamcinolone Acetonide or Lidocaine.
  11. 一种针头结构，用以同时注射填充物并监测回血情况，其特征在于， 所述针头结构包含：A needle structure for simultaneously injecting a filler and monitoring blood return, characterized in that The needle structure comprises:
    针体，包含：Needle body, including:
    针体腔室；Needle chamber;
    针口，连接所述针体腔室；及a needle port connecting the needle chamber; and
    分隔件，设于所述针体腔室中；a partition member disposed in the needle body chamber;
    壳体，连接所述针体，所述壳体包含壳体腔室与开孔，所述针体腔室连通所述壳体腔室；以及a housing connecting the needle body, the housing including a housing chamber and an opening, the needle chamber communicating with the housing chamber;
    导管，具有注射口与管壁，所述导管可位移地穿设于所述壳体腔室与所述针体腔室且装有所述填充物；a catheter having an injection port and a tube wall, the catheter being displaceably disposed through the housing chamber and the needle chamber and containing the filler;
    其中，所述分隔件与所述针口相隔第一间距，所述注射口与所述针口相隔第二间距，当所述第一间距小于所述第二间距时，所述分隔件与所述管壁分离而形成回血口，当所述第一间距大于等于所述第二间距时，所述管壁连接所述分隔件，借以令所述回血口封闭。 Wherein the partition is spaced apart from the needle by a first distance, the injection port is spaced apart from the needle by a second distance, and when the first spacing is smaller than the second spacing, the partition is The tube wall is separated to form a blood return port. When the first distance is greater than or equal to the second distance, the tube wall is connected to the partition member, so that the blood return port is closed.
PCT/CN2016/107071 2016-04-29 2016-11-24 Needle structure WO2017185729A1 (en)

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