CN217566242U - Puncture positioning needle and puncture assembly - Google Patents
Puncture positioning needle and puncture assembly Download PDFInfo
- Publication number
- CN217566242U CN217566242U CN202220200594.0U CN202220200594U CN217566242U CN 217566242 U CN217566242 U CN 217566242U CN 202220200594 U CN202220200594 U CN 202220200594U CN 217566242 U CN217566242 U CN 217566242U
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- puncture
- needle tube
- trigger
- positioning
- spring
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- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 4
- 241001330002 Bambuseae Species 0.000 abstract 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 4
- 239000011425 bamboo Substances 0.000 abstract 4
- 230000009471 action Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 2
- 210000005075 mammary gland Anatomy 0.000 description 2
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 210000000496 pancreas Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a puncture assembly: comprises a puncture positioning needle, an inner needle tube, an outer needle tube and a handle part; the inner needle tube is nested in the outer needle tube, the far end of the inner needle tube is tightly propped against the puncture rear end part, the puncture positioning hook is contacted with the outer needle tube through a bent and folded hook-shaped structure at the puncture front end part and elastically propped against the outer needle tube, the handle part comprises a trigger part, and the trigger part comprises an outlet barrel, a spring cavity, a first spring, a propping block and a trigger cavity; the setting of an export section of thick bamboo is in the inside of trigger part, and the setting of an export section of thick bamboo is encircled to the conflict piece, and the spring chamber sets up behind an export section of thick bamboo, and the spring chamber sets up with the central line collineation of an export section of thick bamboo. When the puncture positioning needle is inserted into the tissue of the human body to realize the focus positioning, the needle tube is pulled out, and the puncture positioning hook, the ripple positioning wire and the marking line are left in the tissue. Due to the corrugated shape of the positioning wire, the positioning wire has the telescopic performance, so that the traction caused by the breathing of a human body can be resisted when the human body freely breathes, and the uncomfortable feeling of a patient is reduced.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a puncture positioning needle and puncture subassembly.
Background
The puncture needle is a medical instrument for positioning, sampling and injecting tissues of a plurality of human organ focuses such as kidney, liver, lung, mammary gland, thyroid gland, prostate, pancreas, testis, uterus, ovary, body surface and the like in minimally invasive surgery.
After the puncture of the puncture needle is finished, particularly after the puncture is carried out on the lung, the mammary gland and other parts, the puncture positioning wire can be kept in the body and can generate relaxation movement along with the respiration and the movement of the human body, so that discomfort is generated for a patient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an: aiming at the problems, the puncture positioning needle and the puncture assembly are provided, and the problems that when a puncture needle thread is kept in a patient body in the prior art, relaxation movement can be carried out along with the breathing of the human body, and discomfort can be caused to the patient are solved.
The scheme is realized as follows:
a puncture positioning needle: comprises a puncture positioning hook, a ripple positioning wire and a marking line; the ripple locating wire is arranged between the puncture locating hook and the marking line.
Based on the structure of the puncture positioning needle, the puncture positioning hook comprises a puncture front end part and a puncture rear end part; the puncture rear end part is fixedly connected with the ripple positioning wire, and the puncture front end part is provided with a bent and folded hook-shaped structure.
The scheme provides a puncture assembly which comprises a puncture positioning needle, an inner needle tube, an outer needle tube and a handle part; the inner needle tube is nested into the outer needle tube, the far end of the inner needle tube is tightly abutted to the puncture rear end, and the puncture positioning hook is in contact with the outer needle tube through a bent and folded hook-shaped structure at the puncture front end and is elastically abutted to the outer needle tube.
Based on the structure of the puncture assembly, the tail part of the inner needle tube is provided with a fixing piece, and the inner needle tube is fixedly connected with the handle part through the fixing piece; the outer needle tube is movably arranged in the handle part, and the outer needle tube can move back and forth in the handle part.
Based on the structure of the puncture assembly, the handle part comprises a triggering part, and the triggering part comprises an outlet barrel, a spring cavity, a first spring, a contact block and a triggering cavity; the outlet barrel is arranged inside the trigger part, the abutting block is arranged around the outlet barrel, the spring cavity is arranged behind the outlet barrel, and the spring cavity and the center line of the outlet barrel are arranged in a collinear mode.
Based on above-mentioned puncture subassembly's structure, first spring setting is in the spring chamber, first spring one end and conflict piece fixed connection, and the other end contacts with outer cylinder.
Based on the structure of the puncture assembly, the triggering cavity comprises a first triggering part, a second triggering part and a connecting groove; the first trigger part and the second trigger part are arranged in parallel, and are connected into a whole through a connecting groove; and the length of the first trigger part is not longer than that of the second trigger part.
Based on the structure of the puncture assembly, the outer needle tube comprises a needle tube part and a trigger key, the trigger key is arranged on one side of the needle tube part far away from the needle point, and the trigger key comprises a contact ring and a trigger block; the interference ring is arranged around the needle cylinder part, and the trigger block is arranged on the interference ring.
Based on the structure of the puncture assembly, the first spring is sleeved on the needle cylinder part, and the end part of the first spring, which is far away from the abutting block, is in contact with and abutted against the abutting ring; the trigger block is arranged in the trigger cavity; the puncture front end part of the puncture positioning hook is clamped with the inner wall of the outer needle tube. To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. through the utility model discloses, puncture when the puncture pilot pin puncture and keep somewhere at the patient when internal, because the existence of ripple locating wire ripple shape makes its self just possess certain elasticity performance, when the human body carries out free respiration, can resist the produced flexible tractive of human breathing, reduce the uncomfortable of disease and feel.
2. When the utility model is not used, the trigger block is arranged in the first trigger cavity, the first spring is in a compressed state at the moment, the end part is clamped with the outer needle tube before puncture, and the end part is tightly propped against the far end of the inner needle tube after puncture, so that the puncture positioning hook is stably clamped between the two; when puncture is needed, the trigger block is pushed forward along the first trigger cavity, bypasses the connecting groove and enters the second trigger cavity, the outer needle tube can puncture a distance forward, then retracts under the action of the first spring to expose the puncture front end part, the folding hook is bent and released to enable the puncture front end part to puncture into a focus part or a preset part, then the handle is slowly pulled out outwards to drive the puncture rear end part to be separated from the outer needle tube, and simultaneously the corrugated positioning wire and the identification wire are driven to be gradually released to fix the identification wire led out of the body surface on the skin of the body surface by using a medical adhesive tape, so that puncture positioning of the focus is completed.
Drawings
FIG. 1 is a schematic structural view of a puncture positioning hook according to the present invention;
FIG. 2 is a schematic view of the structure of the inner needle cannula of the present invention;
FIG. 3 is a schematic view of the structure of the outer needle tube of the present invention;
fig. 4 is a schematic structural view of the handle portion of the present invention;
FIG. 5 is a schematic view of the overall structure of the puncture assembly of the present invention;
the mark in the figure is: 1. a puncture positioning hook; 2. a corrugated positioning wire; 3. marking a line; 4. an inner needle tube; 5. an outer needle tube; 6. a handle portion; 101. puncturing the front end; 102. puncturing the rear end part; 401. a fixing member; 501. a needle cylinder part; 502. a trigger key; 503. a contact ring; 504. a trigger block; 601. a trigger section; 602. a grip extension; 603. an outlet barrel; 604. a spring cavity; 605. a first spring; 606. a contact block; 607. a first trigger section; 608. a second trigger section; 609. and connecting the grooves.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Example 1
As shown in fig. 1, the puncture positioning needle comprises a puncture positioning hook 1, a corrugated positioning wire 2 and a marking line 3; the corrugated positioning wire 2 is arranged between the puncture positioning hook 1 and the marking line 3;
the puncture positioning hook 1 comprises a puncture front end part 101 and a puncture rear end part 102; the puncture rear end part 102 is fixedly connected with the corrugated positioning wire 2, and the puncture front end part 101 is provided with a bent and folded hook-shaped structure;
the corrugated positioning wire is made of memory alloy, is straight before use and is positioned in the inner needle tube. After being released into the body, the positioning wire is changed into a corrugated shape under the action of body temperature, and the length of the corrugated positioning wire is about 2-3 cm. The corrugated positioning wire is used for assisting in fixation, resisting extension and stretching caused by breathing, reducing the falling probability of the positioning hook and simultaneously reducing the discomfort of patients,
in the scheme, the length of one waveform is 2-10 mm, and the waveform is used for assisting in measuring the depth of a focus in the operation.
Through the identification line 3, the guiding function of the surgical incision can be realized, before the release, the identification line is positioned in the inner position of the inner needle tube, after the puncture positioning, the identification line can be pulled out of the body surface, and the medical adhesive tape is fixed.
By providing the puncture tip portion with a bent-folded hook-like structure, not only can the anchoring strength be increased, but also the manufacture is made easier.
Based on the structure, the puncture front end part 101 is used for clamping the outer needle tube 5, so that the puncture positioning needle can be more stable and efficient when being assembled and used, meanwhile, when the puncture positioning needle is inserted into a human body, the puncture positioning needle has certain telescopic performance due to the corrugated shape of the corrugated positioning wire, and can resist the telescopic traction generated by the respiration of the human body when the human body freely breathes, so that the uncomfortable feeling of a patient is reduced.
Example 2
As shown in fig. 2 to 5, based on the above embodiment 1, the present embodiment provides a puncture assembly, which includes a puncture positioning needle, an inner needle tube 4, an outer needle tube 5, and a handle portion 6; the inner needle tube is nested in the outer needle tube, the far end of the inner needle tube is tightly abutted to the puncture rear end portion, and the puncture positioning hook is in contact with the outer needle tube through a bent and folded hook-shaped structure at the puncture front end portion and is elastically abutted to the outer needle tube.
In the scheme, no part of the puncture positioning hook is positioned in the inner needle tube; the distal end of the inner needle cannula 4 is held against the proximal end of the post-puncture tip 102, and the maximum dimension of the post-puncture tip 102 should not be smaller than the inner diameter of the inner needle cannula 4. When the outer needle tube retracts, the inner needle tube can prop against the puncture positioning hook to release the puncture positioning hook.
The tail part of the inner needle tube 4 is provided with a fixing piece 401, and the inner needle tube 4 is fixedly connected with the handle part 6 through the fixing piece 401; the outer needle tube 5 is movably arranged in the handle part 6, and the outer needle tube 5 can move back and forth in the handle part 6;
the handle portion 6 includes a trigger portion 601 and a grip extension 602; the trigger part 601 is arranged at the front end position of the holding extension part 602;
the trigger part 601 comprises an outlet barrel 603, a spring cavity 604, a first spring 605, an interference block 606 and a trigger cavity; the outlet barrel 603 is arranged inside the trigger part 601, the contact block 606 is arranged around the outlet barrel 603, the spring cavity 604 is arranged behind the outlet barrel 603, and the spring cavity 604 is arranged in line with the center line of the outlet barrel 603;
the first spring 605 is disposed in the spring cavity 604, one end of the first spring 605 is fixedly connected to the abutting block 606, and the other end of the first spring is in contact with the outer cylinder.
The trigger cavity comprises a first trigger portion 607, a second trigger portion 608 and a connecting slot 609; the first trigger part 607 and the second trigger part 608 are arranged in parallel, and the first trigger part 607 and the second trigger part 608 are connected into a whole through a connecting groove 609; the length of the first triggering portion 607 is not longer than the length of the second triggering portion 608, and preferably, the length of the second triggering portion 608 is 2 times that of the first triggering portion 607;
the trigger chamber is generally co-linear with the centerline of the spring chamber 604;
the outer needle tube 5 comprises a needle cylinder part 501 and a trigger key 502, the trigger key 502 is arranged on one side of the needle cylinder part 501 far away from the needle point, and the trigger key 502 comprises a contact ring 503 and a trigger block 504; the interference ring 503 is arranged around the syringe part 501, and the trigger block 504 is arranged on the interference ring 503;
the first spring 605 is sleeved on the needle cylinder part 501, and the end part of the first spring 605 far away from the contact block 606 is contacted with and tightly contacted with the contact ring 503; the trigger block 504 is disposed in the trigger chamber; the puncture front end part 101 of the puncture positioning hook 1 is clamped with the inner wall of the outer needle tube 5;
based on the structure, when the puncture positioning hook is not used, the triggering block 504 is in the first triggering cavity, the first spring is in a compressed state at the moment, the puncture front end part 101 is clamped with the outer needle tube 5, and the puncture rear end part 102 is tightly abutted against the far end of the inner needle tube 4, so that the puncture positioning hook 1 is stably clamped between the puncture front end part 101 and the far end of the inner needle tube 4; when puncture is needed, the trigger block 504 is pushed forward along the first trigger cavity, and then bypasses the connecting groove 609 to enter the second trigger cavity, the outer needle tube 5 can puncture a distance forward, then retracts under the action of the first spring 605 to expose the puncture front end part, the bent folding hook is released to puncture the puncture front end part 101 into a focus part or a preset part, then the handle is slowly pulled out, the puncture rear end part is driven to be separated from the outer needle tube, the corrugated positioning wire and the marking line are driven to be gradually released, the marking line guided out of the body surface is fixed on the body surface skin by the medical adhesive tape, and puncture positioning of the focus is completed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A puncture positioning needle is characterized in that: comprises a puncture positioning hook, a ripple positioning wire and a marking line; the ripple locating wire is arranged between the puncture locating hook and the marking line.
2. A puncture positioning needle according to claim 1, wherein: the puncture positioning hook comprises a puncture front end part and a puncture rear end part; the puncture rear end part is fixedly connected with the corrugated positioning wire, and the puncture front end part is provided with a bent and folded hook-shaped structure.
3. A spike assembly, comprising: comprises a puncture positioning needle, an inner needle tube, an outer needle tube and a handle part as claimed in any one of claims 1-2; the inner needle tube is nested into the outer needle tube, the far end of the inner needle tube is tightly abutted to the puncture rear end, and the puncture positioning hook is in contact with the outer needle tube through a bent and folded hook-shaped structure at the puncture front end and is elastically abutted to the outer needle tube.
4. A puncture assembly according to claim 3, wherein: the tail part of the inner needle tube is provided with a fixing piece, and the inner needle tube is fixedly connected with the handle part through the fixing piece; the outer needle tube is movably arranged in the handle part, and the outer needle tube can move back and forth in the handle part.
5. A puncture assembly according to claim 4, wherein: the handle part comprises a trigger part, and the trigger part comprises an outlet cylinder, a spring cavity, a first spring, a contact block and a trigger cavity; the outlet barrel is arranged inside the trigger part, the abutting block is arranged around the outlet barrel, the spring cavity is arranged behind the outlet barrel, and the spring cavity and the center line of the outlet barrel are arranged in a collinear mode.
6. A puncture assembly according to claim 5, wherein: the first spring is arranged in the spring cavity, one end of the first spring is fixedly connected with the abutting block, and the other end of the first spring is contacted with the outer needle cylinder.
7. A puncture assembly according to claim 6, wherein: the trigger cavity comprises a first trigger part, a second trigger part and a connecting groove; the first trigger part and the second trigger part are arranged in parallel, and are connected into a whole through a connecting groove; and the length of the first triggering part is not longer than that of the second triggering part.
8. A puncture assembly according to claim 7, wherein: the outer needle tube comprises a needle tube part and a trigger key, the trigger key is arranged on one side, far away from the needle point, of the needle tube part, and the trigger key comprises a contact ring and a trigger block; the interference ring is arranged around the needle cylinder part, and the trigger block is arranged on the interference ring.
9. A puncture assembly according to claim 8, wherein: the first spring is sleeved on the needle cylinder part, and the end part of the first spring, which is far away from the contact block, is in contact with the contact ring and is tightly contacted with the contact ring; the trigger block is arranged in the trigger cavity; the puncture front end part of the puncture positioning hook is clamped with the inner wall of the outer needle tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220200594.0U CN217566242U (en) | 2022-01-25 | 2022-01-25 | Puncture positioning needle and puncture assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220200594.0U CN217566242U (en) | 2022-01-25 | 2022-01-25 | Puncture positioning needle and puncture assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217566242U true CN217566242U (en) | 2022-10-14 |
Family
ID=83536867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220200594.0U Active CN217566242U (en) | 2022-01-25 | 2022-01-25 | Puncture positioning needle and puncture assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217566242U (en) |
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2022
- 2022-01-25 CN CN202220200594.0U patent/CN217566242U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A puncture positioning needle and puncture component Granted publication date: 20221014 Pledgee: Nantong Branch of Bank of Nanjing Co.,Ltd. Pledgor: Jiangsu MAILUN Medical Technology Co.,Ltd. Registration number: Y2024980005356 |