LEADLESS IMPLANTABLE DEVICE DELIVERY APPARATUS

• US 20140148815A1
• Filed: 09/24/2013
• Published: 05/29/2014
• Est. Priority Date: 11/27/2012
• Status: Active Grant

• Current Assignee: Biotronik SE & Company KG
• Original Assignee: Biotronik SE & Company KG
• Inventors: Wenzel, Matthias, Ayton, Michael J., Nordstrom, Karl
• Granted Patent: US 9,238,145 B2
• Time in Patent Office: Days
• US Class Current: 606/129
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators

Abstract

A leadless implantable device delivery apparatus that enables testing of an implantation site before permanent implantation and enables secure attachment at the site while minimizing effects of the implantation procedure. Embodiments include a delivery sheath configured to accommodate a leadless implantable device, the leadless implantable device having an anchor that includes at least one projection configured to physically attach the anchor to tissue, such as heart tissue. In addition, embodiments include an adapter that resides within the delivery sheath and is configured to impart rotational force at the distal end of the adapter that is applied to the proximal end of the adapter to rotate the anchor associated with the implantable device.

Claims

1. A leadless implantable device delivery apparatus comprising:

a delivery sheath configured to accommodate a leadless implantable device having an anchor, wherein said anchor comprises at least one projection configured to physically attach said anchor to tissue;

an adapter comprising a proximal end and a distal end, wherein said adapter is configured to reside within said delivery sheath and to impart rotational force at said distal end of said adapter that is applied to said proximal end of said adapter to rotate said implantable device.

2. The leadless implantable device delivery apparatus according to claim 1, wherein said adapter further comprises a press-fit coupling element at said proximal end configured to press against a side of said adapter to enable said adapter to rotate when said rotational force is applied.

3. The leadless implantable device delivery apparatus according to claim 1, wherein said adapter further comprises a force-fit coupling element at said distal end configured to couple with a side of said implantable device to enable said implantable device to rotate when said rotational force is applied.

4. The leadless implantable device delivery apparatus according to claim 1, wherein

said adapter further comprises a force-fit coupling element at said distal end configured to couple with a side of said implantable device to enable said implantable device to disengage from said adapter when an opposing rotational force with respect to said rotational force is applied.

5. The leadless implantable device delivery apparatus according to claim 1, wherein

said adapter further comprises a temperature dependent force-fit coupling element at said distal end configured to couple with a side of said implantable device to enable said implantable device to disengage from said adapter when a temperature is applied that alters a physical property of said temperature dependent force-fit coupling element.

6. The leadless implantable device delivery apparatus according to claim 1, wherein

said adapter further comprises at least one pin;

and,

said implantable device comprising at least one indentation configured to couple with said at least one pin to enable said adapter to impart said rotational force to rotate said implantable device via said at least one pin.

7. The leadless implantable device delivery apparatus according to claim 1, wherein

said adapter further comprises a faceted head;

and,

said implantable device comprises a corresponding faceted element to enable said adapter to impart said rotational force to rotate said implantable device via said faceted head.

8. The leadless implantable device delivery apparatus according to claim 7, wherein said adapter further comprises a seal and a hollow portion;

and wherein said faceted head is configured to disengage said implantable device when said hollow portion of said adapter is filled with liquid.

9. The leadless implantable device delivery apparatus according to claim 2, wherein

said press-fit coupling element at said proximal end is configured to disengage as said adapter is filled with liquid such that said press-fit coupling element no longer presses against said side of said adapter to disable said rotational force to rotate a distal end of said adapter.

10. The leadless implantable device delivery apparatus according to claim 1, wherein

said adapter further comprises at least one wire, and a ball and ramp at said distal end coupled with said at least one wire within said adapter, wherein said at least one wire is configured to enable said adapter to rotate when said rotational force is applied to said at least one wire near said proximal end of said adapter;

and,

said implantable device comprises a corresponding rotational element configured to enable said adapter to impart said rotational force to rotate said implantable device via said ball and ramp.

11. A leadless implantable device delivery apparatus comprising:

a delivery sheath configured to accommodate a leadless implantable device having an anchor, wherein said anchor comprises at least one projection configured to physically attach said anchor to tissue;

an adapter comprising a proximal end and a distal end, wherein said adapter is configured to reside within said delivery sheath and to impart rotational force at said distal end of said adapter that is applied to said proximal end of said adapter to rotate said implantable device;

wherein said adapter further comprises

a press-fit coupling element at said proximal end configured to press against a side of said adapter to enable said adapter to rotate when said rotational force is applied;

a force-fit coupling element at said distal end configured to couple with a side of said implantable device to enable said implantable device to rotate when said rotational force is applied; and

,

wherein said force-fit coupling element is further configured to couple with said side of said implantable device to enable said implantable device to disengage from said adapter when an opposing rotational force with respect to said rotational force is applied.

12. The leadless implantable device delivery apparatus according to claim 11, wherein

said adapter further comprises at least one pin;

and,

said implantable device comprises at least one indentation configured to couple with said at least one pin to enable said adapter to impart said rotational force to rotate said implantable device via said at least one pin.

13. The leadless implantable device delivery apparatus according to claim 11, wherein

said adapter comprises a faceted head;

and,

said implantable device comprises a corresponding faceted element to enable said adapter to impart said rotational force to rotate said implantable device via said faceted head.

14. The leadless implantable device delivery apparatus according to claim 13,

wherein said adapter further comprises a seal and a hollow portion;

wherein said faceted head is configured to disengage said implantable device when said hollow portion of said adapter is filled with liquid; and

,

wherein said press-fit coupling element at said proximal end is configured to disengage as said adapter is filled with said liquid such that said press-fit coupling element no longer presses against said side of said adapter to disable said rotational force to rotate a distal end of said adapter.

15. A leadless implantable device delivery apparatus comprising:

a delivery sheath configured to accommodate a leadless implantable device having an anchor, wherein said anchor comprises at least one projection configured to physically attach said anchor to tissue;

an adapter comprising a proximal end and a distal end, wherein said adapter is configured to reside within said delivery sheath and to impart rotational force at said distal end of said adapter that is applied to said proximal end of said adapter to rotate said implantable device;

wherein said adapter further comprises at least one wire, and a ball and ramp at said distal end coupled with said at least one wire within said adapter, wherein said at least one wire is configured to enable said adapter to rotate when said rotational force is applied to said at least one wire near said proximal end of said adapter;

said implantable device comprising a corresponding rotational element to enable said adapter to impart said rotational force to rotate said implantable device via said ball and ramp; and

,

wherein said ball and ramp are configured to disengage from said adapter when longitudinal force is applied in a direction away from said implantable device.