An oral and maxillofacial surgery interstitial infection abscess incision and drainage with guide tube

By designing an expansion and drainage mechanism, combined with an airbag and a sponge block to clamp the skin around the incision, and utilizing the drainage mechanism to concentrate pus and the anti-solidification mechanism to prevent pus from solidifying, the problems of cumbersome operation and difficulty in removal of existing drainage tubes have been solved, thus improving drainage efficiency and patient comfort.

CN117442794BActive Publication Date: 2026-07-24SHANGHAI STOMATOLOGICAL HOSPITAL FUDAN UNIV
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Patent Information

Application Number
CN202311552411.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-21
Publication Date
2026-07-24
Estimated Expiration
2043-11-21

AI Technical Summary

Technical Problem

Existing drainage tubes are cumbersome to operate, requiring coordination of both hands, which may lead to incision tearing and pus leakage. Furthermore, the pus can easily solidify around the incision, making it difficult to remove and causing secondary damage.

Method used

A drainage tube for incision and drainage of abscesses in oral and maxillofacial surgical spaces was designed. It includes an expansion mechanism, a drainage mechanism, and an anti-solidification mechanism. The expansion and drainage are driven by pressing the pressure plate with the thumb. The air bag and sponge block are used to clamp the epidermis around the incision. The drainage mechanism concentrates the pus in the middle position, and the tube and guide plate prevent the pus from solidifying.

Benefits of technology

It simplifies the procedure, reduces incision tearing and pus leakage, improves pus drainage efficiency, reduces pulling and solidification of the patient's wound, and improves the removability of the drainage tube.

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Abstract

The application provides an oral and maxillofacial surgery gap infection abscess incision drainage tube, which comprises a tube shell, a tray, a ring-shaped air tank, an expansion mechanism and a drainage mechanism, the expansion mechanism comprises an air pipe, an air bag and a pressure plate, and the drainage mechanism comprises a drainage tube, a storage bag, an air pump and a telescopic block. By pressing the pressing plate of the pressure plate with the thumb, the pressure plate and the piston are driven to move together, the downward movement of the piston extrudes the air in the ring-shaped air tank, the extruded air enters the air bag through the air pipe, the air bag and the sponge block jointly clamp and limit the skin around the incision, so that the skin around the incision is not easy to further crack during the process of pus suction, and the damage of the skin of the patient is reduced; the pus can be sucked away through the negative pressure drainage mechanism.
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