Devices and methods for delivery and deployment of balloon expandable transcatheter valves
AssigneeMedtronic, Inc.
InventorsConleth Mullen, Marc Anderson, Micheal Fallon
Life of this patent
Estimating the term…
Abstract
Balloon catheters for delivery of prosthetic hear valves are provided. The balloon catheters 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 are configured with substantially incompressible retention bumpers that promote longitudinal inflation fluid flow.
Claims16
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 outer 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 distal first retention bumper secured to the inner shaft, the distal first retention bumper including a spoked first portion including a first hub and first spokes defining first flow passages therebetween and a first tapered portion including first tapered spokes aligning with the first spokes;
- and
- a proximal second retention bumper secured to the inner shaft, the proximal second retention bumper including a second spoked portion including a second hub and second spokes defining second flow passages therebetween and a second tapered portion including second tapered spokes aligning with the second spokes,
- wherein the first tapered portion of the distal first retention bumper is shorter than the second tapered portion of the proximal second retention bumper.
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 outer shaft;
- a balloon disposed at the distal portion such that fluid delivered to the balloon via the inflation lumen causes the balloon to inflate;
- and
- a distal first retention bumper secured to the inner shaft, the distal first retention bumper including a spoked first portion including a first hub and first spokes defining first flow passages therebetween and a first tapered portion including first tapered spokes aligning with the first spokes,
- wherein the distal first retention bumper is substantially non-compressible.
Dependencies are inferred from the claim text.