Lumbar puncture needle with monitoring function

By designing an inner and outer needle structure and a pressure sensor to monitor cerebrospinal fluid, real-time depth and pressure feedback of the lumbar puncture needle is achieved, solving the operational risks and insufficient monitoring problems of traditional lumbar puncture, and improving the success rate of the operation and patient safety.

CN224461772UActive Publication Date: 2026-07-07HUIZHOU CENT PEOPLES HOSPITAL
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Patent Information

Application Number
CN202520192399.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-07-07
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Traditional lumbar puncture relies on the doctor's experience, carries operational risks, and existing monitoring systems are not accurate enough and have poor stability, thus failing to effectively meet clinical needs.

Method used

Design a lumbar puncture needle, comprising inner and outer needle structures, with a signal receiving mechanism connected between the inner and outer needles, and a pressure monitoring mechanism at the top of the outer needle. The cerebrospinal fluid is monitored using impedance changes and pressure sensors to achieve real-time feedback of puncture depth and pressure.

Benefits of technology

Improve the accuracy of punctures, reduce surgical errors, prevent complications, ensure patient safety, reduce surgical time and pain, and improve the quality of recovery.

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Abstract

The utility model discloses a lumbar puncture needle with a monitoring function, which comprises a needle body, a puncture needle main body is inserted and connected in the needle body, and the puncture needle main body is used for detecting puncture depth and monitoring cerebrospinal fluid pressure; the puncture needle body comprises an outer needle and an inner needle, the inner needle is located in the outer needle, a gap is reserved between the outer needle and the inner needle, a signal receiving mechanism is arranged at the top of the outer needle, and the outer needle and the inner needle are electrically connected with the signal receiving mechanism through point-to-line. According to the lumbar puncture needle with the monitoring function, the system and the puncture needle body are arranged so that an alarm can be given out when the puncture needle head makes contact with the cerebrospinal fluid of the lumbar subarachnoid space, and the pressure of the cerebrospinal fluid can be monitored in real time in the cerebrospinal fluid reserving process; through accurate puncture depth feedback and real-time cerebrospinal fluid pressure monitoring, a doctor can more accurately position a puncture point, operation errors are reduced, and the operation success rate is increased; the cerebrospinal fluid pressure is monitored in real time, so that abnormal intracranial pressure can be found in time, serious complications such as cerebral hernia are prevented, and the safety of a patient is guaranteed.
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