Olympus Endoscope Suction Channel Design Patent Granted
Summary
The USPTO granted Olympus Corporation Patent US12605054B2 for an endoscope with a suction channel featuring a variable-diameter design. The suction channel includes a main body and a small-diameter distal portion satisfying the relational expression R1/R2>1.27, where R1 is the inner diameter of the channel main body and R2 is the inner diameter of the small-diameter channel portion. The patent contains 10 claims and covers technology for suctioning liquid along with crushed calculi during endoscopic procedures.
What changed
The USPTO issued Patent US12605054B2 to Olympus Corporation on April 21, 2026, covering an endoscope with a dual-diameter suction channel design. The patent claims a channel main body with a small-diameter distal portion, where the inner diameter ratio satisfies R1/R2>1.27, enabling efficient suction of liquids and crushed calculi. This patent grant provides Olympus Corporation with exclusive rights to the claimed endoscope suction technology in the United States. Competitors developing similar endoscopic suction systems may need to design around this patent or seek licensing arrangements. Medical device manufacturers should review their suction channel designs to assess potential infringement exposure.
Archived snapshot
Apr 21, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Endoscope and endoscope system
Grant US12605054B2 Kind: B2 Apr 21, 2026
Assignee
Olympus Corporation
Inventors
Kazuya Sasaguchi, Soichi Ikuma, Eijiro Sato, Hiroki Kazuno
Abstract
An endoscope includes an insertion portion that is inserted into a subject, and a suction channel that suctions a liquid along with a crushed calculus. The suction channel includes a channel main body, which is inserted in the insertion portion, and a small-diameter channel portion that is provided on a distal end side of the channel main body and has an inner diameter smaller than an inner diameter of the channel main body. The suction channel is configured to satisfy the relational expression R1/R2>1.27, where R1 represents the inner diameter of the channel main body and R2 represents the inner diameter of the small-diameter channel portion.
CPC Classifications
A61B 1/015 A61B 1/00-32 A61B 1/018 A61B 1/307 A61B 1/00071 A61B 1/00087 A61B 1/00094 A61B 17/2202 A61B 18/26 A61B 18/24 A61B 2017/22079 A61B 2017/22074 A61B 2017/3445 A61B 2017/22072 A61B 2218/007 A61B 2218/00511 A61B 2218/00982
Filing Date
2023-08-29
Application No.
18239296
Claims
10
Parties
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