Catheter with compliant balloon

The catheter system with a compliant balloon and ultrasonic transducer addresses the challenges of incomplete renal nerve treatment and variable vessel sizes by ensuring uniform energy delivery and reducing the need for multiple devices, thus enhancing procedural efficiency and safety.

JP2026094175APending Publication Date: 2026-06-09OTSUKA MEDICAL DEVICES
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
OTSUKA MEDICAL DEVICES
Filing Date
2026-02-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing catheter-based systems for deactivating renal nerves face challenges such as incomplete treatment due to limited electric fields, risk of damaging vessel walls, and the need for multiple device sizes to accommodate varying vascular lumen diameters, leading to increased complexity and cost.

Method used

A catheter system with a compliant balloon and ultrasonic transducer that can inflate to a wide range of vessel sizes, ensuring uniform energy delivery and reducing the need for multiple devices by adapting to variable lumen diameters with a single device.

Benefits of technology

The system provides consistent, safe, and effective ultrasonic resection treatment across varying vascular sizes, reducing procedure time, complexity, and cost by using a single device that adapts to different anatomical structures.

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Abstract

The present invention provides catheter-based intraluminal devices and systems configured to deliver ultrasonic energy for treating tissues such as nerve tissue. [Solution] A catheter 102 comprising a catheter shaft 212 having a fluid passage, an ultrasonic transducer 214, and a compliant balloon 108 mounted on the catheter shaft 212, having fluid communication with the fluid passage and an interior that encloses the ultrasonic transducer 214. The compliant balloon 108 includes a balloon wall having a working section radially surrounding the ultrasonic transducer 214, a proximal shoulder proximal to the working section, and a distal shoulder distal to the working section. The balloon wall is thicker than the working section at the proximal and distal shoulders.
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