IP Library › Granted Patent US 12,514,573
Granted Patent B2
US 12,514,573 · App. 18/049,120 · Granted Jan 6, 2026

Devices and systems for accessing and repairing a heart valve

Inventors: Dylan T. Van Hoven (San Carlos, CA); Michael F. Wei (Redwood City, CA)
Assignee: EVALVE, INC.
A61B17/00234A61F2/2436A61F2/246A61F2/2466A61B2017/00243A61B2017/00323A61B2017/00336A61F2/2412A61M2205/0266
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Quick Facts
Patent No.
US 12,514,573
App. No.
18/049,120
Granted
Jan 6, 2026
Kind
B2
Abstract

Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer-guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.

Claims (27)

1 . A medical delivery system for delivering an implantable fixation device to a tricuspid valve, the system comprising:

an outer guide catheter having a proximal end portion, a first deflection portion, a second deflection portion, and a distal end portion each aligned in series along a length of the outer guide catheter, the outer guide catheter further having a first steering mechanism and a second steering mechanism, and the outer guide catheter defining a lumen extending from the proximal end portion to the distal end portion;

an inner guide catheter positioned coaxially within the lumen of the outer guide catheter and having a proximal end portion, a first deflection portion, and a distal end portion each aligned in series along a length of the inner guide catheter, and the inner guide catheter further having a first steering mechanism and defining a lumen extending from the proximal end portion to the distal end portion; and

an interventional catheter positioned coaxially within the lumen of the inner guide catheter and having a proximal end portion, a distal end portion, and an implantable fixation device releasably coupled to the distal end portion,

wherein the first deflection portion of the outer guide catheter is configured to be steerable to define a first outer-guide-catheter curve in a first plane and to move the distal end portion of the outer guide catheter extending from an inferior vena cava in a septal-lateral direction within a right atrium over a tricuspid valve,

wherein the second deflection portion of the outer guide catheter is configured to be steerable to define a second outer-guide-catheter curve in a second plane and to move the distal end portion of the outer guide catheter extending from the inferior vena cava closer to or further from the tricuspid valve,

wherein the first deflection portion of the inner guide catheter is configured to be steerable to define a first inner-guide-catheter curve in a third plane and to move the distal end portion of the inner guide catheter extending from the distal end portion of the outer guide catheter closer to or further from the tricuspid valve, and

wherein the first deflection portion of the outer guide catheter is disposed between the proximal end portion of the outer guide catheter and the second deflection portion of the outer guide catheter.

2 . The system of claim 1 , wherein the first steering mechanism of the outer guide catheter is configured to steer the first deflection portion of the outer guide catheter, and the second steering mechanism of the outer guide catheter is configured to steer the second deflection portion of the outer guide catheter.

3 . The system of claim 2 , wherein at least one of the first outer-guide-catheter curve and the second outer-guide-catheter curve is preformed in the outer guide catheter.

4 . The system of claim 2 , wherein the second outer-guide-catheter curve is preformed in the outer guide catheter.

5 . The system of claim 2 , wherein the first outer-guide-catheter curve and the second outer-guide-catheter curve are preformed in the outer guide catheter.

6 . The system of claim 1 , wherein the first steering mechanism of the inner guide catheter is configured to steer the first deflection portion of the inner guide catheter.

7 . The system of claim 6 , wherein the first inner-guide-catheter curve is preformed in the inner guide catheter.

8 . The system of claim 1 , wherein the second deflection portion and the distal end portion of the outer guide catheter have a total length between 3 cm and 5 cm.

9 . The system of claim 8 , wherein the distal end portion of the inner guide catheter has a length between 2 cm and 3 cm, and the first deflection portion of the inner guide catheter has a length between 4 cm and 7 cm.

10 . The system of claim 1 , further comprising an outer guide catheter handle configured to actuate the first and second steering mechanisms of the outer guide catheter, and an inner guide catheter handle configured to actuate the first steering mechanism of the inner guide catheter.

11 . The system of claim 10 , wherein the first and second steering mechanisms of the outer guide catheter each include at least one pullwire, and the first steering mechanism of the inner guide catheter includes at least one pullwire.

12 . The system of claim 1 , wherein the implantable fixation device comprises:

a first arm and a second arm;

a first proximal element moveable relative the first arm between a first position and a second position for capturing a first leaflet of a tricuspid valve therebetween; and

a second proximal element moveable relative to the second arm between a first position and a second position for capturing a second leaflet of a tricuspid valve therebetween.

13 . The system of claim 1 , wherein the first plane is orthogonal to the second plane.

14 . The system of claim 13 , wherein the third plane is orthogonal to the first plane.

15 . The system of claim 1 , wherein the second deflection portion of the outer guide catheter is steerable to move the distal end portion of the outer guide catheter between positions normal to the proximal end portion of the outer guide catheter and linear with the proximal end portion of the outer guide catheter.

16 . The system of claim 15 , wherein the deflection portion of the inner guide catheter is steerable to move the distal end portion of the inner guide catheter between positions normal to the proximal end portion of the inner guide catheter and linear with the proximal end portion of the inner guide catheter.

17 . The system of claim 16 , wherein the first deflection portion of the outer guide catheter is steerable to move the distal end portion of the outer guide catheter in a septal-lateral direction while positioned in a left atrium above the tricuspid valve.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2022
From: VAN HOVEN, DYLAN T.; WEI, MICHAEL F.
To: EVALVE, INC.
Reel/Frame 061517/0781 →
Continuity (5)
Continuation 17067555 · Oct 9, 2020
Continuation 16882038 · May 22, 2020
Provisional Application 63007854 · Apr 9, 2020
Provisional Application 62851573 · May 22, 2019
Related Publication 20230131595A1 · Apr 27, 2023
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