Implantable medical device fixation
First Claim
1. An assembly comprising:
- an implantable medical device including a conductive housing; and
a fixation element assembly fixedly attached to the implantable medical device near a distal end of the conductive housing, wherein the fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device,wherein the active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device,wherein the active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue,wherein the active fixation tines are in a circular arrangement about a base with proximal ends of the active fixation tines secured to the base, andwherein the insulator includes a header body with notches to receive the active fixation tines and a header cap that combines with the header body to encompass the base such that the active fixation tines are fixedly attached to the implantable medical device at a location near the distal end of the conductive housing both when the active fixation tines are in the spring-loaded position and when the active fixation tines are in the hooked position.
1 Assignment
0 Petitions
Accused Products
Abstract
An assembly includes an implantable medical device (IMD) including a conductive housing, and a fixation element assembly attached to the IMD. The fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device. The active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.
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Citations
26 Claims
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1. An assembly comprising:
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an implantable medical device including a conductive housing; and a fixation element assembly fixedly attached to the implantable medical device near a distal end of the conductive housing, wherein the fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device, wherein the active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device, wherein the active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue, wherein the active fixation tines are in a circular arrangement about a base with proximal ends of the active fixation tines secured to the base, and wherein the insulator includes a header body with notches to receive the active fixation tines and a header cap that combines with the header body to encompass the base such that the active fixation tines are fixedly attached to the implantable medical device at a location near the distal end of the conductive housing both when the active fixation tines are in the spring-loaded position and when the active fixation tines are in the hooked position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A kit for implanting an implantable medical device within a patient, the kit comprising:
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the implantable medical device, wherein the implantable medical device includes a conductive housing; a fixation element assembly fixedly attached to the implantable medical device near a distal end of the conductive housing, wherein the fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device, wherein the active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the conductive housing of the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device, wherein proximal ends of the active fixation tines are secured to a base, wherein the insulator encompasses the base such that the active fixation tines are fixedly attached to the implantable medical device at a location near the distal end of the conductive housing both when the active fixation tines are in the spring-loaded position and when the active fixation tines are in the hooked position, wherein the active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue; a catheter forming a lumen configured to receive the implantable medical device and hold the active fixation tines in the spring-loaded position, wherein the lumen includes an aperture that is adjacent to a distal end of the catheter; and a deployment element configured to initiate deployment of the active fixation tines while the implantable medical device is positioned within the lumen of the catheter, wherein the active fixation tines are configured such that deployment of the active fixation tines from the spring-loaded position to the hooked position while the implantable medical device is positioned within the lumen of the catheter causes the active fixation tines to pull the implantable medical device out of the lumen via the aperture that is adjacent to the distal end of the catheter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A kit for implanting an implantable medical device within a patient, the kit comprising:
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the implantable medical device, wherein the implantable medical device includes a conductive housing; a fixation element assembly fixedly attached to the implantable medical device near a distal end of the conductive housing, wherein the fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device, wherein the active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device, wherein the active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue; a catheter forming a lumen sized to receive the implantable medical device and hold the active fixation tines in the spring-loaded position, wherein the lumen includes an aperture that is adjacent to a distal end of the catheter; and a deployment element configured to initiate deployment of the active fixation tines while the implantable medical device is positioned within the lumen of the catheter, wherein the active fixation tines are configured such that deployment of the active fixation tines from the spring-loaded position to the hooked position while the implantable medical device is positioned within the lumen of the catheter causes the active fixation tines to pull the implantable medical device out of the lumen via the aperture that is adjacent to the distal end of the catheter, wherein the active fixation tines are in a circular arrangement about a base with proximal ends of the active fixation tines secured to the base, and wherein the insulator includes a header body with notches to receive the active fixation tines and a header cap that combines with the header body to encompass the base such that the active fixation tines are fixedly attached to the implantable medical device at a location near the distal end of the conductive housing both when the active fixation tines are in the spring-loaded position and when the active fixation tines are in the hooked position. - View Dependent Claims (24, 25, 26)
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Specification