Treatment tool with detachable movable gripping piece

ChangeBridge: Patent Grants - Diagnosis & Surgery (A61B)

Published March 31st, 2026

Detected April 1st, 2026

Summary

The USPTO granted Patent US12588921B2 to Olympus Corporation for a treatment tool with a detachable movable gripping piece. The patent covers a mechanism allowing controlled movement within a first range and restricted movement in a second range, with the movable piece attachable and detachable at positions within the restricted range. The grant includes 19 claims.

View original document View source feed page

What changed

USPTO granted Patent US12588921B2 to Olympus Corporation on March 31, 2026. The patent, filed as Application No. 17854705 on June 30, 2022, covers a treatment tool comprising a sheath, fixed gripping piece, and movable gripping piece with a movement restricting portion. The movable gripping piece can grip living tissue and is designed to allow movement in a first range while restricting it in a second range, with the ability to attach/detach at positions within the restricted range. Inventors are Ojiro Kitamura and Yuki Kawaguchi.

This is a routine patent grant providing intellectual property protection for a medical device design. It does not impose regulatory obligations, compliance deadlines, or penalties. Manufacturers in the medical device sector should review the patent claims to assess whether their products may fall within the protected scope and evaluate potential licensing needs. No action is required for regulatory compliance purposes.

Source document (simplified)

← USPTO Patent Grants

Treatment tool, treatment tool assembling method, and treatment tool disassembling method

Grant US12588921B2 Kind: B2 Mar 31, 2026

Assignee

Olympus Corporation

Inventors

Ojiro Kitamura, Yuki Kawaguchi

Abstract

A treatment tool includes: a sheath extending along a longitudinal axis; a fixed gripping piece protruding from a distal end of the sheath; a movable gripping piece that is movably attached to either the sheath or the fixed gripping piece, the movable gripping piece being configured to grip a living tissue between the movable gripping piece and the fixed gripping piece; and a movement restricting portion configured to allow movement of the movable gripping piece in a first range and restrict movement of the movable gripping piece in a second range different from the first range. The movable gripping piece is attachable to and detachable from either the sheath or the fixed gripping piece at a movement position within the second range.