A compression hemostasis device for arteriovenous internal fistula

By designing an automated compression hemostasis device, which uses a motor-driven transmission roller to wind up the reinforcing belt, and combined with pressure and humidity sensors, the problems of complex operation and inaccurate compression in arteriovenous fistula hemostasis have been solved, achieving simple and safe hemostasis and improved patient comfort.

CN224461752UActive Publication Date: 2026-07-07BEIJING REHABILITATION HOSPITAL CAPITAL MEDICAL UNIVERSITY(BEIJING WORKERS SANATORIUM)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING REHABILITATION HOSPITAL CAPITAL MEDICAL UNIVERSITY(BEIJING WORKERS SANATORIUM)
Filing Date
2025-03-19
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing methods for hemostasis by compression of arteriovenous fistulas are cumbersome to operate, difficult for beginners, and the compression point is easily misplaced, resulting in ineffective pressure transmission and incomplete hemostasis. Furthermore, the elastic bandage requires continuous pressure after application, which may lead to fistula thrombosis or tumor formation. It is also inconvenient to operate with one hand when releasing the bandage.

Method used

A compression hemostasis device was designed, comprising a shell, a base, a winding unit, and a reinforcing belt. The device uses a motor to drive a transmission roller to wind up the reinforcing belt. Combined with pressure and humidity sensors, it can automatically adjust the compression force and monitor the hemostasis status in real time, and alert medical staff through a prompt.

Benefits of technology

It achieves simple and safe hemostasis, avoids misaligned bleeding at the puncture site, automatically adjusts the pressure, reduces the risk of fistula thrombosis and tumors, and improves patient comfort and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of medical devices, and in particular to a compression hemostasis device for arteriovenous fistulas, comprising a housing and a base. The base has an internal perforation, and the surface of the housing abuts against the inner wall of the perforation. The top of the housing extends to the outside of the base. Both sides of the housing are provided with winding units, and a reinforcing band is also included. The two ends of the reinforcing band are connected to the winding units, which are used to wind and unwind the reinforcing band. The base and the reinforcing band form a closed loop. The device passes through the closed loop formed by the base and the reinforcing band, with the perforation positioned above the puncture site. A motor is then activated to rotate the transmission roller, achieving the winding action of the reinforcing band. During this process, the inner diameter of the closed loop continuously decreases until the base effectively compresses the puncture site. The operation is simple and avoids bleeding caused by misalignment between the puncture site and the compression site.
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