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US 2023/0397988 A1Published application
Balloon expandable transcatheter valve delivery devices and methods
AssigneeMedtronic, Inc.
InventorsNiall DUFFY, Conleth MULLEN, David F. LYDON
Life of this patent
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Abstract
Balloon catheters for delivery of prosthetic heart valves are configured to deploy a prosthetic heart valve through inflation. The balloon catheters are further configured with one or more retention bumpers to reduce or prevent migration of the prosthetic heart valve during delivery. Balloon catheters described herein may include expandable multipart retention bumpers.
Claims26
A balloon catheter for deploying a prosthetic heart valve through balloon inflation, comprising:
- an inner shaft defining a guidewire lumen;
- an outer shaft surrounding the inner shaft defining an inflation lumen between the outer shaft and the inner shaft;
- a distal portion at a distal end of the inner shaft;
- a balloon disposed at the distal portion such that fluid delivered to the balloon via the inflation lumen causes the balloon to inflate;
- a multipart retention bumper having a star shape, the multipart retention bumper being secured to the inner shaft inside the balloon and configurable in an interlocked configuration and a non-interlocked configuration, the multipart retention bumper including an inner wedge and an outer bumper.
2 more elements
A method of assembling a balloon catheter adapted for deploying a prosthetic heart valve through balloon inflation, the method comprising:
- disposing an outer bumper over an inner shaft of the balloon catheter at a distal portion of the inner shaft wherein the outer bumper is star shaped;
- securing an inner wedge to an inner shaft of the balloon catheter at the distal portion of the inner shaft wherein the inner wedge is star shaped;
- positioning a balloon of the balloon catheter over the outer bumper and the inner wedge by passing the outer bumper and the inner wedge into the balloon via an opening of the balloon;
- and
- interlocking the inner wedge and the outer bumper to form a multipart retention bumper.
2 more elements
Dependencies are inferred from the claim text.