IP Library › Granted Patent US 12,311,186
Granted Patent B2
US 12,311,186 · App. 17/888,692 · Granted May 27, 2025

Systems and methods for treating cardiac arrhythmias

Inventors: Lili Liu (Maple Grove, MN); Benjamin J. Haasl (Forest Lake, MN); Brendan Early Koop (Ham Lake, MN); Arthur J. Foster (Blaine, MN); Justin Robert Alt (Minneapolis, MN); Dana Sachs (Pine City, MN)
A61N1/3756A61N1/0573A61N1/3621A61N1/37282
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Quick Facts
Patent No.
US 12,311,186
App. No.
17/888,692
Filed
Aug 16, 2022
Granted
May 27, 2025
Kind
B2
Art Unit
3796
USPC
607/36
Abstract

A leadless pacing device may include a housing having a proximal end and a distal end, and one or more electrodes supported by the housing. The housing may include a body portion and a header. A distal extension may extend distally from the header of the housing, the distal extension including one or more electrodes. The header may include a guide wire port and a guide wire lumen may extend from the guide wire port through the header of the housing and through the distal extension. A fixation member may extend from the header of the housing. The header may be formed from an over mold process.

Claims (35)

1. A method of deploying a leadless pacing device, comprising:

advancing the leadless pacing device toward a treatment site using a delivery catheter, wherein the leadless pacing device includes:

a housing having a proximal end, a distal end, and a central longitudinal axis extending from the proximal end to the distal end;

a fixation member extending from the housing, wherein a distal tip of the fixation member radially extends outward beyond an outermost circumference of the housing; and

at least one electrode disposed on the housing; and

securing the housing to a tissue wall oriented generally parallel to the central longitudinal axis using the fixation member.

2. The method of claim 1 , wherein securing the housing to the tissue wall includes rotating the housing about the central longitudinal axis to insert the fixation member into the tissue wall.

3. The method of claim 1 , wherein the housing has a generally cylindrical wall.

4. The method of claim 3 , wherein the tissue wall extends along the cylindrical wall.

5. The method of claim 3 , wherein the fixation member extends radially beyond the cylindrical wall.

6. The method of claim 3 , wherein after securing the housing to the tissue wall, at least a portion of the tissue wall is disposed between the fixation member and the cylindrical wall.

7. The method of claim 1 , wherein at least a portion of the fixation member extends radially outward of the housing.

8. The method of claim 1 , wherein the leadless pacing device includes a pulse generator module and a battery disposed within the housing.

9. The method of claim 1 , wherein the fixation member includes at least one electrode.

10. The method of claim 1 , wherein the fixation member extends around the central longitudinal axis of the housing.

11. A method of deploying a leadless pacing device, comprising:

advancing the leadless pacing device toward a treatment site using a delivery catheter, wherein the leadless pacing device includes:

a housing having a proximal end, a distal end, and a central longitudinal axis extending from the proximal end to the distal end;

a curved fixation member attached to the housing, wherein a distal tip of the fixation member radially extends outward beyond an outermost circumference of the housing; and

at least one electrode disposed on the housing;

rotating the housing about the central longitudinal axis to secure the housing to a tissue wall oriented generally parallel to the central longitudinal axis using the curved fixation member.

12. The method of claim 11 , wherein at least a portion of the curved fixation member extends radially outward of the housing.

13. The method of claim 12 , wherein a distal tip of the curved fixation member is configured to penetrate into the tissue wall.

14. The method of claim 12 , wherein the curved fixation member is disposed within the delivery catheter as the leadless pacing device is advanced toward the treatment site.

15. The method of claim 11 , wherein the delivery catheter includes a positioning member disposed therein and releasably coupled to the housing, the positioning member being configured to rotate the housing relative to the delivery catheter.

16. A method of deploying a leadless pacing device, comprising:

advancing the leadless pacing device toward a treatment site using a delivery catheter, wherein the leadless pacing device includes:

a housing having a proximal end, a distal end, and a central longitudinal axis extending from the proximal end to the distal end, wherein the housing includes a cylindrical portion having a circumferential surface disposed between the proximal end and the distal end and extending around the central longitudinal axis, the circumferential surface defining a radial outermost extent of the housing;

a fixation member attached to the housing, wherein a distal tip of the fixation member radially extends outward beyond the circumferential surface of the housing defining the radial outermost extent of the housing; and

at least one electrode disposed on the housing;

securing the circumferential surface of the cylindrical portion of the housing against a tissue wall using the fixation member.

17. The method of claim 16 , wherein securing the cylindrical portion of the housing against the tissue wall includes rotating the housing about the central longitudinal axis.

18. The method of claim 16 , wherein a distal tip of the fixation member extends radially outward of the housing prior to securing the cylindrical portion of the housing against the tissue wall.

19. The method of claim 18 , wherein after securing the cylindrical portion of the housing against the tissue wall, a medial portion of the fixation member extends radially outward of the housing and into the tissue wall.

20. The method of claim 16 , wherein the tissue wall secured against the cylindrical portion is oriented generally parallel to the central longitudinal axis.

Continuity (3)
Continuation 16830536 · Mar 26, 2020
Provisional Application 62826496 · Mar 29, 2019
Related Publication 20220387805A1 · Dec 8, 2022
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