Circular stapling instrument

The circular stapling instrument addresses the challenge of precise tissue approximation and staple formation by incorporating adjustable mechanisms, resulting in improved surgical outcomes with reduced complications.

WO2025155683A1PCT designated stage expired Publication Date: 2025-07-24INTUITIVE SURGICAL OPERATIONS INC
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Patent Information

Application Number
PCT/US2025/011814
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-16
Filing Date
2025-01-16
Publication Date
2025-07-24

AI Technical Summary

Technical Problem

Existing circular stapling instruments face challenges in achieving precise and consistent tissue approximation and staple formation, particularly in challenging anatomical locations, leading to issues such as incomplete stapling and tissue perforation.

Method used

A circular stapling instrument with improved staple formation mechanisms, including a mechanism for adjusting staple height and a mechanism for controlling staple deployment, ensuring precise tissue approximation and consistent staple formation across various anatomical locations.

Benefits of technology

The instrument achieves precise and consistent tissue approximation and staple formation, reducing issues of incomplete stapling and tissue perforation, enhancing surgical efficacy.

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Abstract

A circular stapling instrument for joining tissue structures comprises a staple assembly comprising a plurality of staples and a cutting element and an anvil positioned distal to the staple assembly. The instrument further includes a driver configured to advance the staples and the cutting element such that the staples contact the anvil before the cutting element is advanced distal of the staple assembly. The driver is configured to advance the staples and the cutting element such that that the staples are fully formed prior to the cutting element contacting the tissue. Cutting of the tissue only begins after the staples have deformed against the anvil and joined the tissue structures together. This inhibits or prevents tissue displacement during staple formation, resulting in proper staple formation, a more uniform thickness of stapled tissue and an improvement in cut quality, which reduces the risk of an anastomotic leak.
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Description

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Claims

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Citation Information

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