CN203369945U - Lumbar puncture needle - Google Patents
Lumbar puncture needle Download PDFInfo
- Publication number
- CN203369945U CN203369945U CN201320457343.1U CN201320457343U CN203369945U CN 203369945 U CN203369945 U CN 203369945U CN 201320457343 U CN201320457343 U CN 201320457343U CN 203369945 U CN203369945 U CN 203369945U
- Authority
- CN
- China
- Prior art keywords
- piston
- tail
- threaded column
- needle
- sleeve pipe
- 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
- 238000009593 lumbar puncture Methods 0.000 title claims abstract description 11
- 210000001699 lower leg Anatomy 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 8
- 241000894006 Bacteria Species 0.000 abstract 1
- 201000009910 diseases by infectious agent Diseases 0.000 abstract 1
- 210000001175 Cerebrospinal Fluid Anatomy 0.000 description 3
- 230000000844 anti-bacterial Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 210000004556 Brain Anatomy 0.000 description 1
- 206010014599 Encephalitis Diseases 0.000 description 1
- 206010018987 Haemorrhage Diseases 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a lumbar puncture needle which comprises a sleeve and a needle core. The front end of the sleeve is provided with a closed hole puncture head, the closed hole puncture head is fixedly connected with the front end of the needle core, the tail end of the sleeve is provided with a hollow handle portion, the inside of a cavity of the handle portion is provided with a piston, the piston is fixedly connected with the tail end of the needle core, the rear end of the piston is fixedly connected with a threaded column, the rear end of the threaded column is provided with a knob, the inner wall of the tail portion of the handle portion is provided with a thread area matched with the threaded column, and the side wall of the tail portion of the sleeve is provided with a needle base. The lumbar puncture needle is simple in structure and safe and convenient to operate, the needle core is needless to be pulled out, operations are carried out in an isolated sterile environment, and bacterium infection is avoided.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of lumbar puncture needle.
Background technology
Lumbar puncture is a medical procedure commonly used, be mainly used in to the patients such as encephalitis, brain be hemorrhage carry out the cerebrospinal fluid sampling, intracranial pressure is measured and the operation such as injection through vertebral canal medicine.Current lumbar puncture needle consists of sleeve pipe and nook closing member, when sampling, pressure measurement, nook closing member is extracted, and operation comparatively bothers on the one hand, and causing on the other hand it is not to carry out under complete totally enclosed environment, and antibacterial easily enters in sleeve pipe, has larger potential safety hazard.
The utility model content
For overcoming above-mentioned technical problem, it is a kind of simple in structure that this utility model provides, and easy-to-operate contributes to improve the lumbar puncture needle of lumbar puncture efficiency.
For realizing above-mentioned technical purpose, this utility model adopts following scheme: a kind of lumbar puncture needle, comprise sleeve pipe and nook closing member, and the sleeve pipe front end is provided with the closed pore puncturing head, and the closed pore puncturing head is fixedly connected with the nook closing member front end; The sleeve pipe tail end is provided with the shank of inner hollow, and the intracavity of shank is provided with piston, and piston is fixedly connected with the nook closing member tail end; Piston rear end is fixedly connected with a threaded column, and the threaded column rear end is provided with knob; The afterbody inwall of described shank is provided with the threaded area coordinated with threaded column; The sidewall of sleeve pipe afterbody is provided with needle stand.
The utlity model has following beneficial effect: rotary knob after puncturing successfully, ordering about piston, nook closing member, closed pore puncturing head moves forward, final closed pore puncturing head and sleeve pipe front end keep certain interval, and cerebrospinal fluid can enter sleeve pipe by this gap and then by needle stand, be drawn out to the external world; Piston plays the seal isolation effect, avoids cerebrospinal fluid to enter the intracavity of shank.It is simple in structure, and easy-to-operate, without nook closing member is extracted, guarantees to operate under the gnotobasis of isolation and carries out, and avoids antibacterial to infect.
The accompanying drawing explanation
Fig. 1 is this utility model structural representation.
The specific embodiment
Shown in Fig. 1, be provided with nook closing member 7 in sleeve pipe 8, there is certain gap between the two; Sleeve pipe 8 front ends are provided with closed pore puncturing head 9, and closed pore puncturing head 9 is fixedly connected with nook closing member 7 front ends; Sleeve pipe 8 tail ends are provided with the shank 6 of inner hollow, and the intracavity of shank 6 is provided with piston 2, and piston 2 is fixedly connected with nook closing member 7 tail ends; Piston 2 rear ends are fixedly connected with a threaded column 3, and threaded column 3 rear ends are provided with knob 4; The afterbody inwall of shank 6 is provided with the threaded area 5 coordinated with threaded column 3; The sidewall of sleeve pipe 8 afterbodys is provided with needle stand 1.
Claims (1)
1. a lumbar puncture needle, comprise sleeve pipe and nook closing member, it is characterized in that: the sleeve pipe front end is provided with the closed pore puncturing head, and the closed pore puncturing head is fixedly connected with the nook closing member front end; The sleeve pipe tail end is provided with the shank of inner hollow, and the intracavity of shank is provided with piston, and piston is fixedly connected with the nook closing member tail end; Piston rear end is fixedly connected with a threaded column, and the threaded column rear end is provided with knob; The afterbody inwall of described shank is provided with the threaded area coordinated with threaded column; The sidewall of sleeve pipe afterbody is provided with needle stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457343.1U CN203369945U (en) | 2013-07-22 | 2013-07-22 | Lumbar puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457343.1U CN203369945U (en) | 2013-07-22 | 2013-07-22 | Lumbar puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203369945U true CN203369945U (en) | 2014-01-01 |
Family
ID=49832503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320457343.1U Expired - Fee Related CN203369945U (en) | 2013-07-22 | 2013-07-22 | Lumbar puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203369945U (en) |
-
2013
- 2013-07-22 CN CN201320457343.1U patent/CN203369945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |