Balloon Catheter, KANEKA Corporation, Apr 23
Summary
KANEKA CORPORATION has filed a patent application (US20260108708A1) for a balloon catheter designed with dual independent inflation tubes to reduce kinking when navigating curved blood vessel passages. The application, filed on December 18, 2025, lists inventors Kazuki Matsufuji, Masahiro Kojima, and Takahisa Hamabuchi. The invention features a shaft with two sections: a distal first section where inflation tubes are fixed together, and a proximal second section where they are not fixed, allowing flexibility in bent vessel anatomy.
About this source
USPTO classification A61M covers devices that introduce or withdraw fluids from the body: infusion pumps, catheters, syringes, inhalers, wound drainage, dialysis equipment, and fluid-handling microfluidics. Every newly published application in A61M lands in this feed, around 205 a month. Applications publish 18 months after filing. Watch this if you compete in infusion therapy or drug delivery, file freedom-to-operate analyses for medical device startups, scout acquisition targets in cardiovascular or respiratory devices, or track hospital R&D arms that are quietly patenting clinical innovations.
What changed
KANEKA CORPORATION has filed a patent application (US20260108708A1) for a balloon catheter featuring a dual-balloon and dual-inflation-tube design. The shaft contains two distinct sections: in the distal first section, at least two of the shaft, first inflation tube, and second inflation tube are fixed together, while in the proximal second section these components are not fixed to each other. This design allows the catheter to maintain structural integrity at the distal end while providing flexibility to bend and navigate through curved blood vessels without kinking.
For medical device manufacturers, this application signals KANEKA's continued investment in catheter innovation focused on trackability and kink resistance. Competitors developing similar interventional vascular devices should review their own pipeline for potential overlap and assess whether to pursue alternative design approaches to avoid infringement exposure once the patent issues.
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.
BALLOON CATHETER
Application US20260108708A1 Kind: A1 Apr 23, 2026
Assignee
KANEKA CORPORATION
Inventors
Kazuki Matsufuji, Masahiro Kojima, Takahisa Hamabuchi
Abstract
A balloon catheter includes a shaft, first balloon, second balloon, first inflation tube, and second inflation tube. The first inflation tube has a lumen in communication with the lumens of the shaft and first balloon, and the second inflation tube has a lumen in communication with the lumens of the shaft and second balloon. The shaft has a first section on a distal side where the first and second inflation tubes are disposed, and a second section proximal to the first section where the first and second inflation tubes are disposed. At least two of the shaft, first inflation tube, and second inflation tube are fixed to each other in the first section. The shaft, first inflation tube, and second inflation tube are not fixed to each other in the second section. The balloon catheter is less likely to generate a kink when inserted into bent portions of blood vessels.
CPC Classifications
A61M 25/1011 A61M 25/1025 A61M 25/104 A61M 2025/1015 A61M 2025/1056 A61M 2025/1061 A61M 2025/1075 A61M 2025/1079 A61M 2025/1095 A61M 2205/0238
Filing Date
2025-12-18
Application No.
19424631
Parties
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