Plasma scalpel for anal fistula operation

By attaching a spring tube and a metal sleeve to the outside of the electrode wire of the plasma scalpel, the bending adjustment of the scalpel head can be achieved, which solves the problem of poor flexibility and adaptability of existing plasma scalpels in anal fistula surgery, improves the ability to handle curved fistulas, and enables the irrigation of physiological saline.

CN224540306UActive Publication Date: 2026-07-24ANHUI VANWAY MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202521466867.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-07-24
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

Existing plasma scalpels are difficult to adapt to the special anatomical structure of anal fistulas, especially the curved fistula tract, resulting in poor flexibility and adaptability in their use.

Method used

A spring tube is sleeved on the outside of the electrode wire. By utilizing the bending and shaping effect of the spring tube, combined with the design of the metal sleeve and hard metal tube, the bending adjustment of the blade tip can be achieved. The connection between the spring tube and the infusion catheter allows physiological saline to be injected into the blade tip assembly.

Benefits of technology

It improves the flexibility and adaptability of plasma scalpels, enabling the treatment of various types of anal fistulas, especially curved fistulas, and allows for the irrigation of saline solution during surgery.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a plasma scalpel for an anal fistula operation, and relates to the technical field of medical instruments. The scalpel comprises a scalpel handle, the scalpel handle is connected with a scalpel head assembly, the scalpel head assembly comprises an electrode wire and a spring tube, one end of the electrode wire is provided with an electrode head, and the electrode wire is coated with an inner insulating layer; one end of the bourdon tube is connected with a metal sleeve, the other end of the bourdon tube is connected with a hard metal tube, and the bourdon tube, the metal sleeve and the hard metal tube are arranged on the outer side of an inner insulating layer of the electrode wire in a sleeving mode and used for bending and shaping the electrode wire through the bourdon tube; a liquid outlet is formed in the end of the metal sleeve, an insulating head is arranged between the metal sleeve and the ball head structure in a sleeved mode, and the outer wall of the spring tube and the outer wall of the hard metal tube are each sleeved with an outer insulating layer and communicated with the infusion catheter. According to the plasma scalpel, the bourdon tube is arranged on the outer side of the electrode wire in a sleeving mode, bending adjustment on the scalpel head is achieved through the bending and shaping function of the bourdon tube, and the problem that an existing plasma scalpel is poor in overall use flexibility and adaptability is solved.
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