Multi-balloon inflation with separate pressure sensor

By employing a multi-part balloon design and independently controlled pressure sensor monitoring, the problem of uneven balloon expansion during valve replacement surgery was solved, enabling precise deployment and positioning of the artificial heart valve and improving the success rate of the surgery.

CN122028875APending Publication Date: 2026-05-12ST JUDE MEDICAL CARDILOGY DIV INC
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Patent Information

Application Number
CN202480065928.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-10-20
Filing Date
2024-10-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve precise deployment and positioning of artificial heart valves in valve replacement surgery, especially in transcatheter procedures, where uneven balloon expansion leads to uneven expansion problems.

Method used

It adopts a multi-part balloon design, including proximal and distal balloon parts, each with its own independent inflation lumen and pressure sensor to monitor the expansion status of each part, enabling independent control and adjustment to ensure balanced inflation.

Benefits of technology

This improved the deployment precision and positioning accuracy of artificial heart valves, reduced the risk of perivalvular leakage, and enhanced the success rate of the surgery.

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Abstract

A prosthetic heart valve delivery system may include a handle, an outer catheter extending distally from the handle, and a balloon mounted to a distal portion of the outer catheter. A prosthetic heart valve may be configured to be received on a balloon, and a balloon inflation system may be configured to inflate and deflate the balloon. The balloon may include a proximal balloon portion and a distal balloon portion positioned distal to the proximal balloon portion. The interior volume of the proximal balloon portion may be fluidly isolated from the interior volume of the distal balloon portion such that the proximal balloon portion and the distal balloon portion may be inflated independently of each other.
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