A lumbar puncture needle

By introducing a sealing unit and drainage valve into the lumbar puncture needle, the problem of leakage before connecting the pressure gauge is solved, achieving a quick, sealed connection and simplified operation, ensuring the safety and efficiency of the puncture needle.

CN120053030BActive Publication Date: 2025-10-28PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY) +1
2 Cites 0 Cited by

Patent Information

Application Number
CN202510261184.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2025-10-28
Estimated Expiration
2045-03-06

AI Technical Summary

Technical Problem

The existing lumbar puncture needles lack sealing measures before connecting to the pressure gauge, which makes them prone to contamination or leakage of bodily fluids during puncture.

Method used

A lumbar puncture needle comprising a syringe, a puncture needle body, and a solid needle has been designed. It is equipped with a sealing unit and a drainage valve. The sealing and quick connection are achieved through structures such as sealing rings and positioning protrusions, ensuring no leakage before connecting the pressure gauge and keeping the liquid inside the syringe sealed during puncture.

Benefits of technology

It enables a quick and sealed connection when connecting pressure gauges, preventing contamination of the puncture needle and leakage of bodily fluids, simplifying the operation process and reducing the user's workload and time consumption.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention relates to a lumbar puncture needle, belonging to the field of medical device technology. It solves the problem in existing technologies where the lumbar puncture needle lacks a sealing measure before connecting to a pressure gauge, easily leading to needle contamination or fluid leakage during puncture. This invention includes a syringe and a needle body. The needle body is mounted on the syringe, which is used for drainage during puncture, while the needle body is used for spinal puncture. The first sleeve of this invention can be inserted into a valve-opening sleeve to connect the pressure gauge to the syringe. Simultaneously, the valve-opening lever can connect to the crimping end of the valve core and push the valve core towards the syringe, causing the sealing block to detach from the valve core's outer sleeve. This opens the valve module, allowing the liquid inside the syringe to enter the pressure gauge through the hollow part of the valve core's outer sleeve, the valve core's liquid transmission hole, the valve-opening sleeve, and the lever's liquid transmission hole. The pressure gauge can then measure pressure. The connection method is convenient and quick, and it ensures that the syringe does not leak when the pressure gauge is not connected.
Need to check novelty before this filing date? Find Prior Art