LEADLESS CARDIAC PACING DEVICES

• US 20150051616A1
• Filed: 08/06/2014
• Published: 02/19/2015
• Est. Priority Date: 08/16/2013
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Maile, Keith R., Haasl, Benjamin L., Sachs, Dana
• Granted Patent: US 10,179,236 B2
• Time in Patent Office: Days
• US Class Current: 606/129
• CPC Class Codes: A61N 1/0573 chacterised by means penetrating the heart tissue, e.g. helix needle or hook
• CPC Class Codes: A61N 1/362 Heart stimulators heart defibrillators A61N1/39
• CPC Class Codes: A61N 1/37205 Microstimulators, e.g. implantable through a cannula
• CPC Class Codes: A61N 1/37518 Anchoring of the implants, e.g. fixation
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction
• CPC Class Codes: A61N 2001/058 Fixing tools

Abstract

Implantable leadless pacing devices and medical device systems including an implantable leadless pacing device are disclosed. An example implantable leadless pacing device may include a pacing capsule. The pacing capsule may include a housing. The housing may have a proximal region and a distal region. A first electrode may be disposed along the distal region. One or more anchoring members may be coupled to the distal region. The anchoring members may each include a region with a compound curve.

Claims

1. An implantable leadless pacing device, comprising:

a pacing capsule including a housing, the housing having a proximal region and a distal region;

a first electrode disposed along the distal region; and

one or more anchoring members coupled to the distal region, the anchoring members each including a region with a compound curve.

2. The implantable leadless pacing device of claim 1, wherein the region with the compound curve includes a first curved section and a second curved section.

3. The implantable leadless pacing device of claim 2, wherein the first curved section is oriented in a first direction and wherein the second curved section is oriented in a second direction different from the first direction.

4. The implantable leadless pacing device of claim 3, wherein the first direction is opposite the second direction.

5. The implantable leadless pacing device of claim 2, wherein a straight region is disposed between the first curved section and the second curved section.

6. The implantable leadless pacing device of claim 2, wherein each of the one or more anchoring members include a pointed tip section.

7. The implantable leadless pacing device of claim 2, wherein the first curved section, the second curved section or both are capable of causing the one or more anchoring members to move laterally away from the first electrode when the one or more anchoring members extend within a target tissue.

8. The implantable leadless pacing device of claim 2, wherein the first curved section, the second curved section or both have a radius of curvature that varies.

9. The implantable leadless pacing device of claim 1, wherein each of the anchoring members are capable of shifting between a first configuration and a deployed configuration, and wherein each of the anchoring members include the region with the compound curve when in the deployed configuration.

10. An implantable leadless pacing device system, the system comprising:

a delivery catheter having a proximal section, a distal holding section, and a lumen formed therein;

a push member slidably disposed within the lumen;

a leadless pacing device slidably received within the distal holding section, the leadless pacing device comprising;

a housing having a proximal region and a distal region,

a first electrode disposed along the distal region, and

a plurality of anchoring members including a first anchoring member coupled to the distal region;

wherein the first anchoring member is capable of shifting between a first configuration when the leadless pacing device is disposed within the distal holding section and a second configuration when the leadless pacing device is advanced out from the distal holding section;

wherein the distal holding section has a longitudinal axis;

wherein the first anchoring member is arranged substantially parallel with the longitudinal axis when the first anchoring member is in the first configuration; and

wherein the first anchoring member includes a region with a compound curve when the first anchoring member is in the second configuration.

11. The system of claim 10, wherein the region with the compound curve includes a first curved section and a second curved section.

12. The system of claim 11, wherein the first curved section is oriented in a first direction and wherein the second curved section is oriented in a second direction different from the first direction.

13. The system of claim 12, wherein the first direction is opposite the second direction.

14. The system of claim 11, wherein a contact section of the first anchoring member contacts an inner wall surface of the distal holding section when the first anchoring member is in the first configuration.

15. The system of claim 14, wherein the contact section is positioned proximal of a distal end of the first anchoring member.

16. The system of claim 15, wherein the contact section extends between the distal end of the first anchoring member and a point disposed proximal of the distal end.

17. The system of claim 11, wherein the first curved section, the second curved section or both are capable of causing the first anchoring member to move laterally away from the first electrode when the first anchoring member extends within a cardiac tissue.

18. An implantable leadless pacing device system, the system comprising:

a delivery catheter having a proximal section, a distal holding section, and a lumen formed therein;

a push member slidably disposed within the lumen;

a leadless pacing device slidably received within the distal holding section, the leadless pacing device comprising;

a housing having a proximal region and a distal region,

a first electrode disposed along the distal region, and

a plurality of anchoring members including a first anchoring member coupled to the distal region;

wherein the first anchoring member is capable of shifting between a first configuration when the leadless pacing device is disposed within the distal holding section and a second configuration when the leadless pacing device is advanced out from the distal holding section;

wherein a contact section of the first anchoring member contacts an inner wall surface of the distal holding section when the first anchoring member is in the first configuration;

wherein the contact section is positioned proximally of a distal end of the first anchoring member; and

wherein the first anchoring member includes a region with a compound curve when the first anchoring member is in the second configuration.

19. The system of claim 18, wherein the region with the compound curve includes a first curved section and a second curved section.

20. The system of claim 19, wherein the first curved section is oriented in a first direction and wherein the second curved section is oriented in a second direction different from the first direction.