Visual Pressure Regulating Catheter Patent - Qingdao Biotech Medical
Summary
USPTO granted Patent US12605161B2 to QINGDAO BIOTECH MEDICAL CO., LTD on April 21, 2026, covering a visual pressure regulating catheter with integrated hydraulic dilation balloon, pressure regulating handle, endoscope pressure regulating cavity, and dilation liquid perfusion cavity. The invention enables direct endoscopic observation through the catheter into the dilation balloon. The patent contains 13 claims and lists CPC classifications spanning A61B, A61M, and related medical device categories.
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GovPing monitors USPTO Patent Grants - Medical Devices (A61M) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 39 changes logged to date.
What changed
USPTO granted Patent US12605161B2 to QINGDAO BIOTECH MEDICAL CO., LTD for a visual pressure regulating catheter. The patent describes a catheter body with a hydraulic dilation balloon and pressure regulating handle, featuring an endoscope pressure regulating cavity and a dilation liquid perfusion cavity in communication with the balloon, a perfusion port, a pressure regulating port, and an observation channel positioned opposite the balloon allowing endoscopic camera access into the dilation balloon.
Manufacturers and developers of catheter-based medical devices should be aware of this patent when designing or marketing pressure-regulating or dilation catheter systems to avoid potential infringement claims. Competitors in the vascular or urological catheter space may need to conduct freedom-to-operate analyses for similar product designs.
Archived snapshot
Apr 23, 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.
Visual pressure regulating catheter
Grant US12605161B2 Kind: B2 Apr 21, 2026
Assignee
QINGDAO BIOTECH MEDICAL CO., LTD
Inventors
Yan Wei
Abstract
A visual pressure regulating catheter includes: a catheter body, and a hydraulic dilation balloon and a pressure regulating handle both of which are disposed on the catheter body, an endoscope pressure regulating cavity and a dilation liquid perfusion cavity are formed in the catheter body, the dilation liquid perfusion cavity is communicated with the hydraulic dilation balloon, and the pressure regulating handle is provided with a perfusion port which is communicated with the dilation fluid perfusion cavity and a pressure regulating port which is communicated with the endoscope pressure regulating cavity; an observation channel is opened at a position on the endoscope pressure regulating cavity axially opposite to the hydraulic dilation balloon, a camera at a front end of the endoscope sequentially passes through the pressure regulating port, the endoscope pressure regulating cavity and the observation channel and extends into the hydraulic dilation balloon.
CPC Classifications
A61B 17/12136 A61B 1/32 A61B 2017/00539 A61B 1/00082 A61B 1/00135 A61B 1/00154 A61B 1/015 A61M 25/0136 A61M 25/10185 A61M 25/104 A61M 25/10184 A61M 29/02 A61M 2025/1052 A61M 2025/1086 A61M 25/10 A61M 25/1018
Filing Date
2022-04-19
Application No.
18556500
Claims
13
Mentioned entities
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