Refrigerant electromechanical control
The two-stage temperature control method for balloon catheters addresses the challenge of rapid cooling and power delivery, achieving efficient and safe cryotherapy by pulsing the flow control valve and adjusting duty cycles to maintain target temperatures.
JP2026521478APending Publication Date: 2026-06-30クライオセラピューティクス ソシエテ アノニム
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- クライオセラピューティクス ソシエテ アノニム
- Filing Date
- 2024-06-06
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Cryogenic catheters face challenges in achieving rapid cool-down and sufficient cooling power while maintaining design constraints, particularly in cooling arterial tissue to target temperatures for cryotherapy procedures.
Method used
A method involving two-stage temperature control for a balloon catheter, including a cool-down phase with pulsing of the flow control valve and an adjustment phase with duty cycle modulation, utilizing cryogenic fluid supply and sensors to maintain predetermined temperature ranges.
Benefits of technology
Enhances cooling efficiency and responsiveness, allowing for more substantial cooling of the catheter while ensuring precise temperature control and safety during cryotherapy procedures.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026521478000001_ABST
Abstract
A method for controlling the temperature of a balloon catheter, the method comprising supplying a cryogenic fluid to the balloon of a balloon catheter in at least two stages, the at least two stages comprising a cool-down stage and an adjustment stage following the cool-down stage, the cool-down stage comprising connecting a source of cryogenic fluid to the balloon, delivering the cryogenic fluid to the balloon via a flow control valve to cool the balloon, obtaining one or more temperature measurements of the balloon, determining using one or more temperature measurements that the temperature of the balloon satisfies a first predetermined condition, and closing the flow control valve in response to the determination, the adjustment stage comprising repeating the steps of obtaining one or more further temperature measurements of the balloon, determining using one or more further temperature measurements that the temperature of the balloon satisfies a second predetermined condition, and opening the flow control valve and increasing the supply of cryogenic fluid to the balloon if the temperature of the balloon satisfies the second predetermined condition.
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