Endoscope with Fluid Flow Circuit Closure Device for Improved Sterilisation

ChangeBridge: Patent Grants - Diagnosis & Surgery (A61B)

Published April 7th, 2026

Detected April 7th, 2026

Summary

The USPTO granted patent US12593960B2 to AXESS VISION TECH for a medical endoscope featuring a piston-based fluid flow circuit closure device. The invention includes a sealed obturation section and interconnection chamber designed to limit pressure drop during circuit operation. The patent covers 11 claims and protects the assignee's proprietary fluid closure mechanism intended to improve sterilisation of endoscopic equipment.

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What changed

USPTO issued Patent No. US12593960B2 to AXESS VISION TECH, granting exclusive IP rights to a medical endoscope with a device for closing a fluid flow circuit. The patented technology uses a piston body with a movably mounted piston, a sealed obturation section, and a sealed interconnection chamber with a through-hole connecting to a cylindrical chamber, designed to reduce pressure drop during circuit operation.

For medical device manufacturers and competitors in the endoscopic equipment space, this patent establishes proprietary barriers around fluid closure mechanisms for improved sterilisation. Companies developing similar endoscope designs should review this patent for freedom-to-operate considerations and potential licensing opportunities with the assignee.

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Source document (simplified)

← USPTO Patent Grants

Endoscope provided with a device for closing a fluid flow circuit, for improved sterilisation

Grant US12593960B2 Kind: B2 Apr 07, 2026

Assignee

AXESS VISION TECH

Inventors

Emmanuel Hallauer, Philippe Le Roux

Abstract

The disclosure relates to a medical endoscope including:
a piston body in which a piston is movably mounted in displacement;the piston delimiting with the piston body a sealed obturation section and a sealed interconnection chamber adapted so that, in the open position of the obturation device, the sealed interconnection chamber ensures communication between a first portion and a second portion of the circulation circuit. According to the disclosure, the sealed interconnection chamber including a hole passing right through the piston to open out into a cylindrical chamber delimited between the piston and the piston body, by an oblong section located in the open position of the circulation circuit, facing the inlet sections of the tubing for connection to the first portion and to the second portion of the circulation circuit to limit the pressure drop.