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Lumbar vertebral puncture needle assembly with positioning and color rendering functions

A lumbar puncture and needle assembly technology, which is applied in the field of medical devices, can solve the problems of uncontrollable puncture depth and inaccurate positioning, and achieve the effect of avoiding collateral damage, avoiding dislocation, avoiding infection and sequelae

Active Publication Date: 2019-01-04
刘斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings in the above-mentioned background technology, the present invention proposes a lumbar puncture needle assembly with positioning and color rendering functions, which solves the technical problems of uncontrollable puncture depth and inaccurate positioning of the existing lumbar puncture needles during puncture.

Method used

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  • Lumbar vertebral puncture needle assembly with positioning and color rendering functions
  • Lumbar vertebral puncture needle assembly with positioning and color rendering functions
  • Lumbar vertebral puncture needle assembly with positioning and color rendering functions

Examples

Experimental program
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Effect test

Embodiment 2

[0030] Embodiment 2, a lumbar puncture needle assembly with positioning and color rendering functions, the outer periphery of the lumbar puncture needle is provided with a penetration depth scale, and the setting of the penetration depth scale is not only convenient for the control of the first puncture depth, but also for re-examination. At the same time, you can refer to the depth of the last puncture record.

[0031] The holding end of the lumbar puncture needle 2 is provided with a booster plate 202 , the booster plate 202 is provided with a docking groove 203 , and the end of the needle core 3 is provided with a snap ring 204 matched with the docking groove 203 . By setting the booster plate, the puncture can be conveniently carried out, which can not only ensure the stability of the puncture, but also save labor. The setting of the docking groove and the retaining ring can ensure the accuracy of docking.

[0032] The other structures of this embodiment are the same as t...

Embodiment 3

[0033] Embodiment 3, a lumbar puncture needle assembly with positioning and color development functions, the color development groove 405 is a return-shaped groove, and the end of the color development groove 405 that communicates with the vertical through hole is provided with a flared groove 409, and the flared groove 409 is greater than the height difference between two adjacent through holes 201 . The color developing tank is set as a circular groove, which is more convenient to observe the color developing reaction.

[0034] The other structures of this embodiment are the same as those of the second embodiment.

Embodiment 4

[0035] Embodiment 4, a lumbar puncture needle assembly with positioning and color rendering functions, the rotary switch is a cylindrical casing sleeved on the outside of the drainage top seat, the side wall of the cylindrical casing is sealed with the communication port 406, and the cylindrical casing is The side wall of the casing is provided with a liquid outlet that is movably matched with the communication port, and the liquid outlet is connected to the syringe through a hose. The rotary switch is arranged on the outer side of the drainage top seat, and the structure is simple and convenient for production. It is not necessary to set the positioning seat 4 as a combined structure, and it can be integrally formed.

[0036] The other structures of this embodiment are the same as those of the third embodiment.

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Abstract

The invention discloses a lumbar vertebral puncture needle assembly with positioning and color rendering functions, including mating guide needles, a lumbar puncture needle and a needle core, the needle core is separated from the inner wall of the lumbar puncture needle, the peripheral surface of the lumbar puncture needle is provided with a plurality of perforations, a lead pin is fixedly arranged in that position seat, the positioning seat is a transparent plastic seat, the bottom surface of the positioning seat is connected with a medical adhesive tape, the positioning seat is provided witha vertical through hole arranged coaxially with the guide needle, A lumbar vertebral puncture needle passes through a vertical through hole and is matched with a guide needle. The positioning seat comprises a color developing base and a drainage top seat, wherein the color developing base is provided with a color developing groove communicated with a vertical through hole, the color developing groove is filled with a color developing liquid for cerebrospinal fluid, a communication port is provided on the drainage top seat, and the drainage top seat is provided with a rotary switch matched with the communication port. The invention has the advantages of accurate and stable positioning, convenient drainage, convenient observation of the puncture effect through the color developing base, andno need of frequently pulling and inserting the needle core.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a lumbar puncture needle assembly with positioning and color development functions. Background technique [0002] Lumbar puncture is an indispensable examination and treatment method in the diagnosis of neurological diseases, spinal anesthesia, spinal drug administration, myelography, and cerebrospinal fluid drainage. At present, most of the lumbar puncture needles used in China are traditional "Quicken's" lumbar puncture needles, which are composed of stainless steel needle core, stainless steel lumbar puncture needle and needle seat. The disadvantages are: 1. It is made of stainless steel , in the process of repeated use, it is likely to cause cross-infection due to incomplete disinfection; 2. Because the needle body is slender, it is difficult to control the direction of the needle body when it enters the lumbar spine, which not only increases the difficulty of lumbar ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3403A61B17/3415A61B17/3417A61B17/3494A61B2017/3407Y02A50/30
Inventor 刘斌杨丽梅王凤英李丽陈兴杰司瑞品
Owner 刘斌
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