IP Library › Granted Patent US 12,472,062
Granted Patent B2
US 12,472,062 · App. 18/321,593 · Granted Nov 18, 2025

Method and apparatus for mitral valve chord repair

Inventors: Gordon B. Bishop (Santa Rosa, CA); Erik Griswold (Penngrove, CA); Stephen R. McDaniel (San Rafael, CA); Trung H. Pham (Santa Rosa, CA); Cameron P. Purcell (Santa Rosa, CA); Hien N. Lam (Santa Rosa, CA)
Assignee: Pipeline Medical Technologies, Inc.
A61F2/2457A61F2/2466A61B2017/0406A61B17/0467A61F2220/0016A61F2230/0091A61F2250/0098
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Quick Facts
Patent No.
US 12,472,062
App. No.
18/321,593
Granted
Nov 18, 2025
Kind
B2
Abstract

Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.

Claims (20)

1 . An endovascular suture cutter for cutting a suture, comprising:

a cutter housing defining a suture path extending therethrough, the suture path provided between an opening on a distal end of the cutter housing and a window formed on a side of the cutter housing; and

a cutter head rotatably positioned within the cutter housing, the cutter head including a cutting edge that extends in a helical path, wherein rotation of the cutter head within the cutter housing causes the cutting edge to cross the suture path to cut the suture extending along the suture path.

2 . The endovascular suture cutter as in claim 1 , wherein the cutter housing defines a barrel that forms a cylindrical inner surface.

3 . An endovascular suture cutter as in claim 2 further comprising an outer sheath coupled to the cutter housing, the outer sheath extending along a longitudinal axis, an inner shaft extending through the outer sheath and coupled to the cutter head, wherein rotation of the inner shaft with respect to the outer sheath causes the cutting edge to rotate within the cutter housing.

4 . An endovascular suture cutter as in claim 3 , further comprising a lock that prevents axial movement of the outer sheath with respect to the inner shaft.

5 . The endovascular suture cutter as in claim 4 , further comprising a handle that is coupled to a proximal end of the outer sheath and a cutter handle that is coupled to a proximal end of the inner shaft.

6 . The endovascular suture cutter as in claim 5 , wherein the lock is positioned within the handle.

7 . The endovascular suture cutter according to claim 1 , wherein in a locked position the cutting edge is covered by the cutter housing.

8 . The endovascular suture cutter according to claim 1 wherein a lock is provided in the cutter housing for preventing rotation between the cutter head and the cutter housing.

9 . The endovascular suture cutter according to claim 8 , wherein the lock comprises a protrusion on the cutter head that engages a recess with the cutter housing.

10 . The endovascular suture cutter according to claim 9 , wherein the lock provided within the cutter housing is disengaged by axially moving the cutter head within the cutter housing.

11 . An endovascular suture cutter for cutting a suture, comprising:

a cutter housing defining a suture path extending therethrough; and

a cutter head rotatably positioned within the cutter housing, the cutter head including a cutting edge, wherein rotation of the cutter head within the cutter housing causes the cutting edge to cross the suture path to cut the suture extending along the suture path, and in a locked position the cutting edge is covered by the cutter housing.

12 . An endovascular suture cutter for cutting a suture, comprising:

a cutter housing defining a suture path extending therethrough; and

a cutter head rotatably positioned within the cutter housing, the cutter head including a cutting edge, wherein rotation of the cutter head within the cutter housing causes the cutting edge to cross the suture path to cut the suture extending along the suture path, and wherein a lock is provided in the cutter housing for preventing rotation between the cutter head and the cutter housing.

13 . The endovascular suture cutter according to claim 12 , wherein the lock comprises a protrusion on the cutter head that engages a recess with the cutter housing.

14 . The endovascular suture cutter according to claim 13 , wherein the lock provided within the cutter housing is disengaged by axially moving the cutter head within the cutter housing.

Continuity (13)
Continuation 16711321 · Dec 11, 2019
Continuation In Part 16297422 · Mar 8, 2019
Continuation In Part 15858671 · Dec 29, 2017
Continuation In Part 15638176 · Jun 29, 2017
Provisional Application 62905267 · Sep 24, 2019
Provisional Application 62897809 · Sep 9, 2019
Provisional Application 62897207 · Sep 6, 2019
Provisional Application 62875265 · Jul 17, 2019
Provisional Application 62778624 · Dec 12, 2018
Provisional Application 62778662 · Dec 12, 2018
Provisional Application 62641612 · Mar 12, 2018
Provisional Application 62441031 · Dec 30, 2016
Related Publication 20230380969A1 · Nov 30, 2023
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