CN213883425U - Disposable anti-liquid-flow puncture needle - Google Patents
Disposable anti-liquid-flow puncture needle Download PDFInfo
- Publication number
- CN213883425U CN213883425U CN202022630017.9U CN202022630017U CN213883425U CN 213883425 U CN213883425 U CN 213883425U CN 202022630017 U CN202022630017 U CN 202022630017U CN 213883425 U CN213883425 U CN 213883425U
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- CN
- China
- Prior art keywords
- fixedly connected
- wall
- needle
- rotating plate
- rear surface
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 230000000670 limiting effect Effects 0.000 claims description 34
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 15
- 210000001124 body fluid Anatomy 0.000 abstract description 9
- 239000010839 body fluid Substances 0.000 abstract description 9
- 206010011409 Cross infection Diseases 0.000 abstract description 4
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 210000001367 artery Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 208000001953 Hypotension Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000004872 arterial blood pressure Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable puncture needle for preventing liquid from flowing. Including the needle tubing structure, push structure and current-limiting structure, the needle tubing structure includes the injection syringe, surface fixedly connected with syringe needle behind the injection syringe, surface front end fixedly connected with solid fixed ring of injection syringe, the round hole has been seted up to the injection syringe front surface, the injection syringe inner wall is in the same place with push structure swing joint, push structure includes the rubber band, the round hole inner wall set up with the circular slot of rubber band looks adaptation, the rubber band is in the same place with injection syringe inner wall swing joint, surface fixedly connected with piston post behind the rubber band, surface fixedly connected with piston cap behind the piston post, piston post swing joint is on the round hole inner wall, the syringe needle inner wall is in the same place with current-limiting structure fixed connection, the current-limiting structure includes spacing one, make during the unable backward flow of body fluid gets into the injection syringe during the use, make this equipment can effectively prevent the body fluid backward flow, cross infection's risk has been avoided.
Description
Technical Field
The utility model relates to a puncture needle, in particular to a disposable anti-liquid-flow puncture needle.
Background
In clinical work, artery puncture catheterization pressure measurement is a critical patient, anesthesia management such as major operation is very important component parts, and successful artery puncture is the prerequisite of pressure measurement, and this kind of patient appears the blood pressure low easily, the problem of vascular deformity, and external pipe has resistance or artery to be punctured etc. repeatedly in addition, and the doctor often will pass through many punctures and just can succeed, and traditional artery pjncture needle has following problem in the puncture: blood is easy to flow out from the puncture core in the process of puncture, and the blood is often sprayed from the tail end of the needle tube due to high arterial blood pressure and is sprayed to the environment or hands or clothes of medical staff, and the blood is an important medium for spreading diseases, so that the medical staff is easy to be infected when not handling properly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a disposable puncture needle of preventing flowing liquid possesses effective backflow prevention, and simple structure, with low costs grade advantage has solved the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a disposable anti-liquid-flow puncture needle comprises a needle tube structure, a pushing structure and a current limiting structure, wherein the needle tube structure comprises an injection tube, the rear surface of the injection tube is fixedly connected with a needle head, the front surface of the injection tube is fixedly connected with a fixing ring, and the front surface of the injection tube is provided with a round hole;
the inner wall of the injection pipe is movably connected with the pushing structure.
The pushing structure comprises a rubber ring, the rubber ring is movably connected with the inner wall of the injection tube, the rear surface of the rubber ring is fixedly connected with a piston column, the rear surface of the piston column is fixedly connected with a piston cap, and the piston column is movably connected with the inner wall of the round hole;
the inner wall of the needle head is fixedly connected with the flow limiting structure.
The current-limiting structure comprises a first limiting strip, a left surface of the first limiting strip is fixedly connected with a left surface of the inner wall of the needle head, a first rear surface of the first limiting strip is movably connected with a first rotating plate, the first rotating plate is movably connected with the left surface of the inner wall of the needle head, the first rotating plate is fixedly connected with a first spring, the first spring is fixedly connected with a first fixing strip, a second limiting strip is fixedly connected with a right surface of the inner wall of the needle head, the second limiting strip is movably connected with a second rotating plate, the second rotating plate is fixedly connected with a second spring, and the second spring is fixedly connected with a second fixing strip.
Preferably, the inner wall of the round hole is provided with a round groove matched with the rubber ring.
Preferably, the opposite surfaces of the first rotating plate and the second rotating plate are movably connected together.
Preferably, the left surface of the first fixing strip is fixedly connected with the left surface of the inner wall of the needle head, and the right surface of the second fixing strip is fixedly connected with the right surface of the inner wall of the needle head.
Compared with the prior art, the utility model provides a disposable puncture needle of preventing flowing liquid possesses following advantage:
1. when the disposable anti-liquid-flow puncture needle is used, a user inserts a needle head into human tissues, then pushes a piston cap backwards, drives a piston column fixedly connected with the piston cap to move backwards under the movement of the piston cap, pushes a rubber ring to move backwards, injects injection liquid in an injection tube into the needle head under the movement of the rubber ring, pushes a first rotating plate and a second rotating plate to turn backwards in the moving process of the injection liquid, presses a first fixing strip and a second spring to deform in the rotating process of the first rotating plate and the second rotating plate, at the moment, the injection liquid flows out from a gap between the first rotating plate and the second rotating plate to be injected into the human tissues, when body liquid flows back, the injection liquid flows through the inside of the needle head to reach the rear surfaces of the first rotating plate and the second rotating plate, and the first limiting strip and the second limiting strip play a limiting effect to prevent the body liquid from flowing back to enter the injection tube, make this equipment can effectively prevent the body fluid backward flow, avoided cross infection's risk.
2. When the disposable anti-liquid-flow puncture needle is used, a user inserts a needle head into human tissues, then pushes a piston cap backwards, drives a piston column fixedly connected with the piston cap to move backwards under the movement of the piston cap, pushes a rubber ring to move backwards, injects injection liquid in an injection tube into the needle head under the movement of the rubber ring, pushes a first rotating plate and a second rotating plate to turn backwards in the moving process of the injection liquid, presses a first fixing strip and a second spring to deform in the rotating process of the first rotating plate and the second rotating plate, at the moment, the injection liquid flows out from a gap between the first rotating plate and the second rotating plate to be injected into the human tissues, when body liquid flows back, the injection liquid flows through the inside of the needle head to reach the rear surfaces of the first rotating plate and the second rotating plate, and the first limiting strip and the second limiting strip play a limiting effect to prevent the body liquid from flowing back to enter the injection tube, the whole structure of the equipment is simpler, and the manufacturing cost is relatively lower.
Drawings
Fig. 1 is a schematic view of the three-dimensional explosion structure of the present invention;
FIG. 2 is a schematic view of the front surface structure of the injection tube of the present invention;
FIG. 3 is a schematic view of a connection structure of the rotary plate of the present invention;
fig. 4 is a schematic view of the structure of the current limiting structure of the present invention.
In the figure: the injection device comprises a needle tube structure 1, an injection tube 11, a needle head 12, a fixing ring 13, a round hole 14, a pushing structure 2, a rubber ring 21, a piston column 22, a piston cap 23, a flow limiting structure 3, a first limiting strip 31, a first rotating plate 32, a first spring 33, a first fixing strip 34, a second limiting strip 35, a second rotating plate 36, a second spring 37 and a second fixing strip 38.
Detailed Description
A disposable anti-liquid-flow puncture needle comprises a needle tube structure 1, a pushing structure 2 and a current limiting structure 3, wherein the needle tube structure 1 comprises an injection tube 11, the rear surface of the injection tube 11 is fixedly connected with a needle head 12, the front end of the surface of the injection tube 11 is fixedly connected with a fixing ring 13, and the front surface of the injection tube 11 is provided with a round hole 14;
the inner wall of the injection tube 11 is movably connected with the pushing structure 2.
The pushing structure 2 comprises a rubber ring 21, a circular groove matched with the rubber ring 21 is formed in the inner wall of the circular hole 14, the rubber ring 21 is movably connected with the inner wall of the injection tube 11, a piston column 22 is fixedly connected to the rear surface of the rubber ring 21, a piston cap 23 is fixedly connected to the rear surface of the piston column 22, and the piston column 22 is movably connected to the inner wall of the circular hole 14;
the inner wall of the needle 12 is fixedly connected with the flow-limiting structure 3.
The current-limiting structure 3 comprises a first limiting strip 31, the left surface of the first limiting strip 31 is fixedly connected with the left surface of the inner wall of the needle 12, the rear surface of the first limiting strip 31 is movably connected with a first rotating plate 32, the first rotating plate 32 is movably connected with the left surface of the inner wall of the needle 12, the rear surface of the first rotating plate 32 is fixedly connected with a first spring 33, the rear surface of the first spring 33 is fixedly connected with a first fixing strip 34, the left surface of the first fixing strip 34 is fixedly connected with the left surface of the inner wall of the needle 12, the right surface of the inner wall of the needle 12 is fixedly connected with a second limiting strip 35, the rear surface of the second limiting strip 35 is movably connected with a second rotating plate 36, the opposite surface of the first rotating plate 32 and the second rotating plate 36 is movably connected together, the rear surface of the second rotating plate 36 is fixedly connected with a second spring 37, the rear surface of the second spring 37 is fixedly connected with a second fixing strip 38, the right surface of the second fixing strip 38 is fixedly connected with the right surface of the inner wall of the needle 12, when in use, the user inserts the needle head 12 into the human tissue, then pushes the piston cap 23 backwards, the piston column 22 fixedly connected with the piston cap 23 is driven to move backwards under the movement of the piston cap 23, the piston column 22 pushes the rubber ring 21 to move backwards, the injection in the injection tube 11 is injected into the needle head 12 under the movement of the rubber ring 21, the first rotating plate 32 and the second rotating plate 36 are pushed to turn backwards in the moving process of the injection, the first fixing strip 34 and the second spring 37 are pressed to deform in the rotating process of the first rotating plate 32 and the second rotating plate 36, at the moment, the injection flows out from the gap between the first rotating plate 32 and the second rotating plate 36 and is injected into the human tissue, when the body fluid flows back, the fluid flows through the inside of the needle head 12 to reach the rear surfaces of the first rotating plate 32 and the second rotating plate 36, because the first limiting strip 31 and the second limiting strip 35 play a limiting effect on the first rotating plate 32 and the second rotating plate 36, the body fluid cannot flow back into the injection tube 11, make this equipment can effectively prevent the body fluid backward flow, avoided cross infection's risk, and this equipment overall structure is comparatively simple, and manufacturing cost is lower relatively.
The utility model is further explained in the following to better understand the utility model discloses:
when the injection syringe is used, a user inserts the needle 12 into human tissues, then pushes the piston cap 23 backwards, drives the piston column 22 fixedly connected with the piston cap 23 to move backwards under the movement of the piston cap 23, the piston column 22 pushes the rubber ring 21 to move backwards, the injection in the injection syringe 11 is injected into the needle 12 under the movement of the rubber ring 21, the first rotating plate 32 and the second rotating plate 36 are pushed to turn backwards in the moving process of the injection, the first fixing strip 34 and the second spring 37 are pressed to deform in the rotating process of the first rotating plate 32 and the second rotating plate 36, the injection flows out from a gap between the first rotating plate 32 and the second rotating plate 36 and is injected into the human tissues, when the body fluid flows back, the fluid flows through the inside of the needle 12 to the rear surfaces of the first rotating plate 32 and the second rotating plate 36, and the first limiting strip 31 and the second limiting strip 35 have a limiting effect on the first rotating plate 32 and the second rotating plate 36, so that the body fluid cannot flow back into the injection syringe 11, make this equipment can effectively prevent the body fluid backward flow, avoided cross infection's risk, and this equipment overall structure is comparatively simple, and manufacturing cost is lower relatively.
Claims (6)
1. A disposable anti-liquid-flow puncture needle comprises a needle tube structure (1), a pushing structure (2) and a current limiting structure (3), wherein the needle tube structure (1) comprises an injection tube (11), and is characterized in that the rear surface of the injection tube (11) is fixedly connected with a needle head (12), the front end of the surface of the injection tube (11) is fixedly connected with a fixing ring (13), and the front surface of the injection tube (11) is provided with a round hole (14);
the inner wall of the injection tube (11) is movably connected with the pushing structure (2).
2. The disposable liquid-proof puncture needle according to claim 1, wherein the pushing structure (2) comprises a rubber ring (21), the rubber ring (21) is movably connected with the inner wall of the injection tube (11), a piston column (22) is fixedly connected with the rear surface of the rubber ring (21), a piston cap (23) is fixedly connected with the rear surface of the piston column (22), and the piston column (22) is movably connected with the inner wall of the circular hole (14);
the inner wall of the needle head (12) is fixedly connected with the flow limiting structure (3).
3. A disposable fluid-tight puncture needle according to claim 2, the current limiting structure (3) comprises a first limiting strip (31), the left surface of the first limiting strip (31) is fixedly connected with the left surface of the inner wall of the needle head (12), the rear surface of the first limit strip (31) is movably connected with a first rotating plate (32), the first rotating plate (32) is movably connected on the left surface of the inner wall of the needle head (12), the rear surface of the first rotating plate (32) is fixedly connected with a first spring (33), the rear surface of the first spring (33) is fixedly connected with a first fixing strip (34), the right surface of the inner wall of the needle head (12) is fixedly connected with a second limit strip (35), the rear surface of the second limit strip (35) is movably connected with a second rotating plate (36), the rear surface of the second rotating plate (36) is fixedly connected with a second spring (37), and the rear surface of the second spring (37) is fixedly connected with a second fixing strip (38).
4. The disposable liquid-proof puncture needle according to claim 1, characterized in that the inner wall of the round hole (14) is provided with a round groove matched with the rubber ring (21).
5. A disposable fluid-tight puncture needle according to claim 3, wherein the side of said first rotating plate (32) opposite to the second rotating plate (36) is movably connected together.
6. A disposable fluid resistant lancet according to claim 3, wherein said first holding strip (34) left surface is fixedly attached to said needle (12) inner wall left surface and said second holding strip (38) right surface is fixedly attached to said needle (12) inner wall right surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022630017.9U CN213883425U (en) | 2020-11-13 | 2020-11-13 | Disposable anti-liquid-flow puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022630017.9U CN213883425U (en) | 2020-11-13 | 2020-11-13 | Disposable anti-liquid-flow puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213883425U true CN213883425U (en) | 2021-08-06 |
Family
ID=77119054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022630017.9U Expired - Fee Related CN213883425U (en) | 2020-11-13 | 2020-11-13 | Disposable anti-liquid-flow puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213883425U (en) |
-
2020
- 2020-11-13 CN CN202022630017.9U patent/CN213883425U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |