IP Library › Granted Patent US 12,465,723
Granted Patent B2
US 12,465,723 · App. 18/615,565 · Granted Nov 11, 2025

Device and method for releasing catheters from cardiac structures

Inventors: Huu Nguyen (San Jose, CA); Rob Kotmel (Burlingame, CA); Tiffany Mirchandani (San Jose, CA); Russel Sampson (Palo Alto, CA); David Scott Baron (Sunnyvale, CA)
Assignee: Ancora Heart, Inc.
A61M25/0082A61B17/0401A61B17/3468A61F2/2445A61F2/2466A61F2/2487A61B2017/00243A61B2017/00292A61B2017/00309A61B2017/00783A61B2017/0409A61B2017/0417A61B2017/0464A61B2017/07221A61M2025/0096A61M2210/125
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Quick Facts
Patent No.
US 12,465,723
App. No.
18/615,565
Granted
Nov 11, 2025
Kind
B2
Abstract

Devices, systems, and methods for releasing a catheter from an implant may include a catheter comprising first and second elongate elements, first and second elongate element lumens, a tissue anchor lumen, apertures corresponding to each of the lumens, and retaining portions between adjacent apertures. The first elongate element may extend out of its lumen through the first elongate element aperture, across the retaining portion transversely with respect to a longitudinal axis, and towards the second elongate element aperture. The first elongate element may then extend into the second elongate element aperture, loop over the second elongate element, and extend back across the retaining portion and into the first elongate element lumen. In some instances, the second elongate element is retracted to uncouple the first and second elongate elements from each other and to open a channel for the release of tethered tissue anchors.

Claims (32)

1 . An implant delivery system comprising:

a catheter having a longitudinal axis and comprising a first elongate element lumen and a second elongate element lumen within the catheter;

a first elongate element within the first elongate element lumen;

a second elongate element within the second elongate element lumen; and

a plurality of pairs of first and second elongate element apertures, wherein for each pair of first and second elongate element apertures, the first elongate element extends out of the first elongate element lumen through the first elongate element aperture across a retaining portion of the catheter transversely with respect to the longitudinal axis and towards the second elongate element aperture, and the first elongate element extends into the second elongate element aperture, loops over the second elongate element, and extends back across the retaining portion and into the first elongate element lumen.

2 . The implant delivery system of claim 1 , wherein the first elongate element is releasably coupled to the second elongate element.

3 . The implant delivery system of claim 1 , wherein the first elongate element extending between the first and second elongate element apertures crosses over itself.

4 . The implant delivery apparatus of claim 1 , wherein the first elongate element is fixed to a distal end of the catheter.

5 . The implant delivery system of claim 1 , further comprising a first elongate element control configured to retract the first elongate element from the first elongate element lumen and a second elongate element control configured to retract the second elongate element from the second elongate element lumen.

6 . The implant delivery system of claim 5 , wherein retracting the first elongate element from the first elongate element lumen tensions the first elongate element.

7 . The implant delivery system of claim 1 , wherein the retaining portion comprises a channel along the longitudinal axis.

8 . The implant delivery system of claim 7 , wherein the retaining portion is configured to open the channel.

9 . The implant delivery system of claim 1 , further comprising at least one radiopaque structure located between the plurality of apertures.

10 . The implant delivery system of claim 1 , further comprising a tissue anchor lumen and a plurality of tissue anchor apertures.

11 . The implant delivery system of claim 10 , further comprising an anchor delivery catheter advanceable within the tissue anchor lumen and a plurality of tissue anchors within the anchor delivery catheter.

12 . The implant delivery system of claim 11 , wherein the plurality of tissue anchor apertures are configured for passage of the plurality of tissue anchors.

13 . A method for performing a procedure inside a heart comprising:

positioning a catheter adjacent to heart tissue, wherein the catheter has a longitudinal axis and comprises:

a first elongate element lumen and a second elongate element lumen within the catheter;

a first elongate element within the first elongate element lumen;

a second elongate element within the second elongate element lumen; and

a plurality of pairs of first and second elongate element apertures, wherein for each pair of first and second elongate element apertures, the first elongate element extends out of the first elongate element lumen through the first elongate element aperture across a retaining portion of the catheter transversely with respect to the longitudinal axis and towards the second elongate element aperture, and the first elongate element extends into the second elongate element aperture, loops over the second elongate element, and extends back across the retaining portion and into the first elongate element lumen;

deploying a first tissue anchor and at least a second tissue anchor into the heart tissue, wherein a tether couples the first tissue anchor to at least the second tissue anchor; and

retracting the second elongate element from the second elongate element lumen to uncouple the first elongate element from the second elongate element and to open a channel of the retaining portion for passage of the tether.

14 . The method of claim 13 , wherein the catheter is temporarily secured to heart tissue using at least one of the first and second tissue anchor.

15 . The method of claim 13 , wherein retracting the second elongate element increases slack of the first elongate element.

16 . The method of claim 13 , further comprising crossing the first elongate element over itself.

17 . The method of claim 13 , further comprising tensioning the first elongate element against the second elongate element.

18 . The method of claim 13 , further comprising indirectly visualizing the catheter.

19 . The method of claim 13 , further comprising advancing an anchor delivery catheter within the catheter.

20 . The method of claim 13 , further comprising tensioning the tether.

21 . The method of claim 13 , further comprising removing the catheter from the heart.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2024
From: NGUYEN, HUU; KOTMEL, ROB; MIRCHANDANI, TIFFANY; SAMPSON, RUSSEL; BARON, DAVID SCOTT
To: ANCORA HEART, INC.
Reel/Frame 066993/0794 →
Continuity (4)
Continuation 17221321 · Apr 2, 2021
Continuation 15572757
Provisional Application 62160595 · May 12, 2015
Related Publication 20250050065A1 · Feb 13, 2025
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