Endoscope Treatment Tool - US12593959B2

ChangeBridge: Patent Grants - Diagnosis & Surgery (A61B)

Published April 7th, 2026

Detected April 7th, 2026

Summary

USPTO granted patent US12593959B2 to Olympus Medical Systems Corp. for an endoscope treatment tool featuring a sheath with a first channel and an incision device with a second channel. The invention enables switching between two modes to form different fluid paths between the main flow chamber and the respective channels. The patent contains 13 claims.

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What changed

USPTO issued patent grant US12593959B2 to Olympus Medical Systems Corp. covering an endoscope treatment tool with dual-channel fluid path switching capability between a first mode (sheath channel) and a second mode (incision device channel). The invention includes a sheath with distal end portion, first channel with distal and proximal openings, and an incision device inserted therein with a second channel extending between distal and proximal ends.

For manufacturers and medical device companies, this patent grant establishes intellectual property protection for Olympus in the endoscopic treatment tool space. Competitors developing similar dual-mode endoscope fluid management systems should review the patent claims to assess potential licensing requirements or design-around considerations.

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Source document (simplified)

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Endoscope treatment tool

Grant US12593959B2 Kind: B2 Apr 07, 2026

Assignee

Olympus Medical Systems Corp.

Inventors

Hiromasa Kato, Yusuke Shiota, Kotaro Yamada

Abstract

An endoscope treatment tool includes a sheath and an incision device. The sheath includes a distal end portion having a first channel. The first channel extends internal to the distal end portion between a distal opening at a distal end surface of the distal end portion and a proximal opening at a main flow chamber. The incision device is inserted in the first channel and includes a second channel extending between a distal end of the incision device and a proximal end of the incision device. The endoscope treatment tool is switchable between a first mode and a second mode. In the first mode, a first path for fluid is formed between the main flow chamber and the first channel. In the second mode, a second path for fluid is formed between the main flow chamber and the second channel.