Magnetic needle-finding probe and handheld sterile field suture needle pickup system

By combining a magnetic needle-finding probe with an electromagnet unit and a needle-sensing unit, precise positioning and safe retrieval of suture needles in the sterile area are achieved, solving the problem of finding and removing suture needles in the sterile area and improving surgical efficiency and safety.

CN122123744APending Publication Date: 2026-06-02SHANDONG RES INST OF TUMOUR PREVENTION TREATMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG RES INST OF TUMOUR PREVENTION TREATMENT
Filing Date
2026-04-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Current technology cannot efficiently and safely locate and retrieve dropped suture needles in sterile areas, leading to prolonged surgical procedures, increased radiation exposure, and high operational risks. Furthermore, traditional retrieval methods are prone to causing tissue damage.

Method used

Design a magnetic needle-finding probe that combines an electromagnet unit and a needle sensing unit. It uses magnetic attraction to locate and attract suture needles, and is equipped with a protective sleeve to stabilize the needles and reduce the risk of scratches. Combined with a handheld system, it enables precise searching and picking up of needles in sterile areas.

Benefits of technology

It improves the efficiency and success rate of suture needle retrieval, reduces the risk of organ damage during suture needle removal, and ensures surgical safety and efficiency.

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Abstract

This invention belongs to the field of medical device technology and provides a magnetic needle-finding probe and a handheld suture needle retrieval system for sterile areas. The magnetic needle-finding probe includes a main body and a base connected to each other. The main body is provided with at least one electromagnet unit and at least one suture needle sensing unit. The main body is provided with an axially arranged storage groove and a receiving groove. The electromagnet unit is fixedly embedded in the storage groove, and the outer diameter of its outer wall is smaller than the outer diameter of the main body to form a concave storage space for accommodating and adsorbing suture needles. The suture needle sensing unit is fixedly embedded in the receiving groove, and the outer diameter of its outer wall is equal to the outer diameter of the main body. The magnetic needle-finding probe and handheld suture needle retrieval system for sterile areas provided by this invention have a simple structure and are easy to use. They can locate and retrieve suture needles that have fallen in the sterile surgical area, improving needle-finding efficiency and success rate, while reducing the risk of scratching organs during suture needle retrieval.
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