A bulb drainage tube having a plurality of side suction slots

By designing multiple arc-shaped side suction grooves and a ball-head drainage tube with a hemispherical head, the problems of blockage and tissue damage caused by traditional drainage tubes are solved, achieving efficient and safe drainage results.

CN224711370UActive Publication Date: 2026-09-04SHANTONG MEDICAL TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202522210896.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-20
Publication Date
2026-09-04
Estimated Expiration
2035-10-20

AI Technical Summary

Technical Problem

Traditional drainage tubes are prone to clogging due to their side hole structure, and the design of the insertion end may cause tissue damage. Existing improved solutions have failed to effectively solve the problems of clogging risk and tissue damage.

Method used

Design a ball-head drainage tube with multiple arc-shaped side suction grooves, combined with a hemispherical head and a central flow channel. The side suction groove consists of an enlarged cavity and a narrow inlet, with a smooth transition between the narrow inlet and the enlarged cavity. The hemispherical head avoids tissue cutting, and the central hole at the top serves as an auxiliary channel to ensure drainage continuity and prevent blockage.

Benefits of technology

It effectively reduces the probability of drainage tube blockage, reduces tissue damage, improves drainage efficiency and continuity, enhances self-recovery ability, and ensures effective drainage under complex working conditions.

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Abstract

The utility model discloses a ball head drainage tube with multiple side suction grooves relates to medical instrument technical field. The drainage tube includes the semispherical head, the suction pipe and the drainage hose that connect gradually, and the three inside common constitution thorough center flow channel. The pipe wall of suction pipe is equipped with multiple circular arc close type side suction grooves, and the longitudinal section geometry of this side suction groove is constituted by the inside expansion cavity and the outside narrow entrance, and the narrow entrance is formed by two sections of the small radius circular arc that inwardly converges to each other, and the expansion cavity profile is the large radius circular arc, and both are smooth transition and are communicated with the center flow channel. The structure makes the drainage liquid can smoothly pass through narrow entrance and gather in expansion cavity, can effectively block the big soft tissue simultaneously, reduces the risk of blockage. The semispherical head helps to reduce the tissue damage in the process of insertion. The utility model structure design pertinence is strong, and has improved the reliability and operating safety of drainage.
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