LOW-FRICTION TROCAR SLEEVE

DE602019083704T2Active Publication Date: 2026-04-15ALCON INC
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2019-09-05
Publication Date
2026-04-15

AI Technical Summary

Technical Problem

Existing trocar valves exhibit high friction with surgical instruments, leading to folding, inconsistent feedback, and inefficient insertion/removal, while also failing to effectively prevent the escape of pressurized fluids.

Method used

A trocar valve with a geometrical arrangement of overlapping sheets made of low-friction materials, such as polyimide film, glass film, or PTFE, that minimizes contact with surgical instruments and forms a seal under internal pressure to prevent fluid escape.

Benefits of technology

The low-friction trocar valve provides efficient and reliable insertion/removal of surgical instruments with reduced friction and consistent feedback, while effectively preventing the escape of pressurized fluids.

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