US 10,765,503 B2Granted

Bicuspid valve dissection device

AssigneeEdwards Lifesciences Corporation

InventorsGregory Bak-Boychuk, Ming H. Wu

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Abstract

The invention is a device, system, and method for repairing heart valve function, which may include bisecting native valve leaflets for improved deployment of a prosthetic heart valve in the native valve annulus. The invention may include a catheter having a cutting element shaft with a cutting element configured to puncture a valve leaflet and/or make a controlled cut through the leaflet. The device may have an extendable foot configured to be positioned on an opposite side of the valve leaflet from the cutting element shaft. The device may include magnets to guide the cutting element and/or cutting element shaft in proper alignment with the extendable foot and to hold the elements in place during leaflet bisection.

Claims10

Dependent claims

A method for bisecting heart valve leaflets of a patient, comprising:

advancing a steerable catheter shaft through anatomy of the patient to a position near a native heart valve having a valve annulus;
advancing a foot out of the steerable catheter shaft and distally past a valve leaflet of the native heart valve;
positioning the foot against a distal side of the valve leaflet;
advancing a cutter sheath out of the steerable catheter shaft, the cutter sheath comprising a cutter sheath distal end;
positioning the cutter sheath distal end against a proximal side of the valve leaflet;
holding the valve leaflet between the foot and the cutter sheath distal end;
and
advancing a cutting element out of the cutter sheath and into the valve leaflet at a selected entry position on the valve leaflet.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/045,116Filed 25 Jul 2018 · us provisional application
Priority: 31 Jul 2017
Published: US 2019/0029790 A131 Jan 2019
Granted: 8 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

A61B 17/320016
Surgical cutting instruments: endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
A61B 17/3201
Surgical cutting instruments: scissors
A61B 17/320758
Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions: with a rotating cutting…
A61B 18/1492
Probes or electrodes therefor: having a flexible, catheter-like structure, e.g. for heart ablation

Family

Application62/538,976Us provisional application · filed 31 Jul 2017
US 2019/0029790 A1Pre-grant publication · published 31 Jan 2019
US 10,765,503 B2This patent

From the US filing history. Foreign family members aren’t listed.

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