CN113425937A - Safety type vein puncture needle - Google Patents
Safety type vein puncture needle Download PDFInfo
- Publication number
- CN113425937A CN113425937A CN202110872013.8A CN202110872013A CN113425937A CN 113425937 A CN113425937 A CN 113425937A CN 202110872013 A CN202110872013 A CN 202110872013A CN 113425937 A CN113425937 A CN 113425937A
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- China
- Prior art keywords
- cavity shell
- strip
- shaped cavity
- flow guide
- floating ball
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- Legal status (The legal status 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 status listed.)
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Classifications
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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
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
- A61M5/1685—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion by detection of position of a floating member
-
- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
- A61M5/365—Air detectors
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical product treatment, and discloses a safety type vein puncture needle which comprises a transfusion tube, wherein a blood check valve is arranged on the transfusion tube, the blood check valve comprises a strip-shaped cavity shell and first conical heads arranged at two ends of the strip-shaped cavity shell, a flow guide tube is arranged in the strip-shaped cavity shell, two ends of the flow guide tube are provided with funnel openings, an expansion end of each funnel opening is fixed with the inner wall of the strip-shaped cavity shell, a gap is reserved between the strip-shaped cavity shell and the flow guide tube, the inner wall of the funnel opening at the upper end of the flow guide tube is provided with a liquid inlet, the middle part of the flow guide tube is provided with a floating ball in a suspending manner, magnetic particles are arranged in the floating ball, a magnetic control switch is arranged at a position close to the liquid inlet in the gap, and the magnetic control switch is connected with an alarm device arranged outside the strip-shaped cavity shell. The invention can make timely alarm response during blood return, ensures the safety and the reassurance of the whole transfusion process, greatly reduces the observation of medical staff during the transfusion process, and reduces the working pressure of the medical staff.
Description
Technical Field
The invention belongs to the technical field of medical supplies, and particularly relates to a safety type vein puncture needle.
Background
At present, the gravity infusion device is generally used for patient infusion, medical staff must watch the gravity infusion device when the gravity infusion device is used, if the gravity infusion device is not used for replacing liquid or pulling out a needle in time after the infusion is finished, the blood return phenomenon can be caused, and hidden danger is brought to the safety of a patient. Therefore, medical staff often spend a lot of time on nursing patient's infusion, have increased their work burden, especially when acute infectious disease outbreak, because too many patients, medical staff are not in time to attend to, bring the problem that can't pull out the needle or change the infusion in time after the infusion finishes.
Therefore, how to solve the above problems becomes a focus of research by those skilled in the art.
Disclosure of Invention
The first purpose of the invention is to provide a safety type vein puncture needle which solves the defects of the prior art.
The embodiment of the invention is realized by the following steps:
a safe type vein puncture needle, which comprises a transfusion tube, wherein one end of the transfusion tube is provided with a vein puncture needle, the other end is provided with a rifling joint, a liquid infusion device is arranged on the riff joint, a blood check valve is arranged on the infusion tube, the blood check valve comprises a strip-shaped cavity shell and first conical heads arranged at two ends of the strip-shaped cavity shell, a flow guide pipe is arranged in the strip-shaped cavity shell, funnel openings are arranged at two ends of the flow guide pipe, an expansion end of each funnel opening is fixed with the inner wall of the strip-shaped cavity shell, so that a gap is left between the strip-shaped cavity shell and the flow guide pipe, a liquid inlet is arranged on the inner wall of the funnel opening at the upper end, a floating ball is arranged in the middle of the flow guide pipe in a suspending manner, magnetic particles are arranged in the floating ball, a magnetic control switch is arranged at the position close to the liquid inlet in the gap and is connected with an alarm device arranged outside the strip-shaped cavity shell.
Furthermore, the diameter of the floating ball is smaller than the inner diameter of any section of the funnel opening, and the diameter of the floating ball is larger than that of the liquid inlet.
Further, the diameter of the floating ball is equal to the inner diameter of the flow guide pipe.
Further, still be provided with the bubble filter on the transfer line, the bubble filter includes circular cavity shell and sets up in the second toper head at circular cavity shell both ends, the wall is provided with netted spheroid in the circular cavity shell.
Further, the diameter of the reticular sphere is larger than the inner diameter of any section of the second conical head.
The invention has the beneficial effects that:
the blood check valve is arranged, so that smooth transfusion is guaranteed, and meanwhile, the position of the floating ball can be monitored by the magnetic control switch, so that whether the blood return phenomenon occurs or not is judged, an alarm is given in time, medical staff is reminded to pull out a needle or replace transfusion, and the work burden of the medical staff is relieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a safety venipuncture needle provided by the present invention;
FIG. 2 is a schematic view of the structure of the blood check valve;
fig. 3 is a schematic view of the structure of the bubble filter.
Icon: 1-an infusion tube, 2-an intravenous puncture needle, 3-a Colleft joint, 4-a liquid infusion apparatus, 5-a blood check valve, 501-a strip-shaped cavity shell, 502-a first conical head, 503-a draft tube, 504-a funnel opening, 505-a liquid inlet, 506-a floating ball, 507-magnetic particles, 6-a magnetic control switch, 7-an alarm device, 8-a bubble filter, 801-a circular cavity shell, 802-a second conical head and 803-a reticular sphere.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a safety type venipuncture needle, including an infusion tube 1, one end of the infusion tube 1 is provided with a venipuncture needle 2, the other end is provided with a riffle connector 3, the riffle connector 3 is provided with a liquid infusion apparatus 4, the infusion tube 1 is further provided with a blood check valve 5 and a bubble filter 8, the blood check valve 5 is close to one side of the liquid infusion apparatus 4, and the blood check valve 5 is close to one side of the venipuncture needle 2.
The blood check valve 5 includes a bar-shaped cavity housing 501 and first tapered heads 502 integrally formed at both ends of the bar-shaped cavity housing 501, a flow guide pipe 503 is arranged in the strip-shaped hollow cavity shell 501, a funnel opening 504 is integrally formed at two ends of the flow guide pipe 503, an expansion end of the funnel opening 504 is fixedly connected with the inner wall of the strip-shaped hollow cavity shell 501 into a whole, so that a gap is left between the strip-shaped cavity shell 501 and the flow guide pipe 503, the inner wall of the funnel opening 504 close to one side of the liquid infusion apparatus 4 is provided with a liquid inlet 505, the middle part of the flow guide pipe 503 is provided with a floating ball 506 in a suspending way, the floating ball 506 is hollow, the interior is filled with hydrogen, so that the floating ball 506 can be suspended, the magnetic particles 507 are arranged in the floating ball 506, a magnetic control switch 6 is arranged in the gap close to the liquid inlet 505, and the magnetic control switch 6 is connected with an alarm device 7 arranged outside the bar-shaped cavity shell 501. The diameter of the floating ball 506 is smaller than the inner diameter of any section of the funnel opening 504, the diameter of the floating ball 506 is larger than that of the liquid inlet 505, and the diameter of the floating ball 506 is equal to that of the flow guide pipe 503.
The bubble filter 8 comprises a circular cavity shell 801 and a second conical head 802 integrally formed at two ends of the circular cavity shell 801, a reticular sphere 803 is arranged in the circular cavity shell 801 in a wall pasting mode, and the diameter of the reticular sphere 803 is larger than the inner diameter of any section of the second conical head 802.
As can be seen from the above, the present embodiment provides a safety venipuncture needle, which operates according to the following principle:
when in normal transfusion, the liquid transfusion device 4 is penetrated into a transfusion bottle, the vein puncture needle 2 is punctured into a vein of a patient, liquid medicine enters the diversion pipe 503 from the liquid inlet 505, the floating ball 506 is pressed downwards under the action of the gravity and the pressure of the liquid medicine until the floating ball 506 reaches the funnel opening 504 at the lower end, the liquid medicine flows to the bubble filter 8 through the gap between the funnel opening 504 and the floating ball 506, when the liquid medicine flows to the bubble filter 8, the liquid medicine is slowly filled in the reticular sphere 803, and the reticular sphere 803 is provided with a plurality of small holes, so that bubbles in the gas transmission pipe are burst and broken, air and bubbles in the liquid transmission pipe 1 are eliminated, the bubbles and the air are prevented from being input into a human body, and meanwhile macromolecular substances in the liquid can be filtered;
after the infusion is finished, the floating ball 506 is suspended to the middle of the flow guide pipe 503 again due to the fact that the gravity and pressure of the liquid medicine do not exist, at the moment, if the vein puncture needle 2 is not pulled out or the liquid medicine is not replaced in time, the blood pressure presses the floating ball 506 to the liquid inlet 505 from bottom to top, at the moment, the magnetic particles 507 in the floating ball 506 interfere with the magnetic control switch 6, the magnetic control switch 6 is enabled to make a response for switching on the alarm device 7 to be started, and therefore an alarm is triggered, and medical staff are reminded of handling in time.
To sum up, the embodiment provides a safe type vein pjncture needle, can make timely warning response when returning blood, can also get rid of gas, bubble and macromolecular substance in the transfer line simultaneously, guarantees that whole infusion process is safe relieved to the infusion process can significantly reduce medical staff and watch, has reduced medical staff's operating pressure.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a safe type vein pjncture needle, includes transfer line (1), the one end of transfer line (1) is provided with vein pjncture needle (2), and the other end is provided with riffle connector (3), be provided with liquid transfusion system (4) on riffle connector (3), its characterized in that: a blood check valve (5) is arranged on the infusion tube (1), the blood check valve (5) comprises a strip-shaped cavity shell (501) and first conical heads (502) arranged at two ends of the strip-shaped cavity shell (501), a flow guide pipe (503) is arranged in the strip-shaped cavity shell (501), two ends of the flow guide pipe (503) are provided with funnel openings (504), the expansion end of each funnel opening (504) is fixed with the inner wall of the strip-shaped cavity shell (501), so that a gap is reserved between the strip-shaped cavity shell (501) and the flow guide pipe (503), a liquid inlet (505) is arranged on the inner wall of the funnel opening (504) at the upper end, a floating ball (506) is arranged in the middle of the flow guide pipe (503) in a suspending manner, magnetic particles (507) are arranged in the floating ball (506), a magnetic switch (6) is arranged in the gap close to the liquid inlet (505), the magnetic control switch (6) is connected with an alarm device (7) arranged outside the strip-shaped cavity shell (501).
2. A safety venipuncture needle as claimed in claim 1 wherein: the diameter of the floating ball (506) is smaller than the inner diameter of any section of the funnel opening (504), and the diameter of the floating ball (506) is larger than that of the liquid inlet (505).
3. A safety venipuncture needle as claimed in claim 1 wherein: the diameter of the floating ball (506) is equal to the inner diameter of the guide pipe (503).
4. A safety venipuncture needle as claimed in claim 2 wherein: still be provided with bubble filter (8) on transfer line (1), bubble filter (8) include circular cavity shell (801) and set up in second toper head (802) at circular cavity shell (801) both ends, wall is provided with netted spheroid (803) in circular cavity shell (801).
5. A safety venipuncture needle as claimed in claim 4 wherein: the diameter of the reticular sphere (803) is larger than the inner diameter of any section of the second conical head (802).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872013.8A CN113425937B (en) | 2021-07-30 | 2021-07-30 | Safe type vein pjncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872013.8A CN113425937B (en) | 2021-07-30 | 2021-07-30 | Safe type vein pjncture needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113425937A true CN113425937A (en) | 2021-09-24 |
| CN113425937B CN113425937B (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110872013.8A Active CN113425937B (en) | 2021-07-30 | 2021-07-30 | Safe type vein pjncture needle |
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| Country | Link |
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| CN (1) | CN113425937B (en) |
Citations (16)
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|---|---|---|---|---|
| PT65439A (en) * | 1975-08-28 | 1976-09-01 | Biedermann H | TROPFENZAEHLER, INSBESONDERE FUER INFUSIONSEINRICHTUNGEN |
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2021
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| CN209695964U (en) * | 2019-01-24 | 2019-11-29 | 江苏神力医用制品有限公司 | A kind of one-way valve structures of perfusion tube |
| CN111544687A (en) * | 2019-02-15 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | Automatic reminding infusion apparatus |
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| Publication number | Publication date |
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| CN113425937B (en) | 2023-04-07 |
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