Implantable medical device fixation
First Claim
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1. A kit for implanting an implantable medical device within a patient, the kit comprising:
- the implantable medical device;
a set of active fixation tines attached to the implantable medical device adjacent a distal end of the implantable medical device, wherein each active fixation tine of the set of active fixation tines is configured to be deployed from a spring-loaded position in which a distal end of the active fixation tine points away from the implantable medical device to a hooked position in which the distal end of the active fixation tine bends back towards the implantable medical device;
a catheter forming a lumen sized to receive the implantable medical device and hold each active fixation tine of the set of active fixation tines in the spring-loaded position, wherein the catheter defines an aperture that is adjacent to a distal end of the catheter; and
a deployment element configured to initiate deployment of the set of active fixation tines while the implantable medical device is positioned within the lumen of the catheter such that respective distal ends of the set of active fixation tines are adjacent the distal end of the catheter,wherein the set of active fixation tines are configured such that the deployment of the set of active fixation tines from the spring-loaded position to the hooked position pulls the implantable medical device out of the lumen via the aperture at the distal end of the catheter.
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Abstract
Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. 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 IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.
402 Citations
20 Claims
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1. A kit for implanting an implantable medical device within a patient, the kit comprising:
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the implantable medical device; a set of active fixation tines attached to the implantable medical device adjacent a distal end of the implantable medical device, wherein each active fixation tine of the set of active fixation tines is configured to be deployed from a spring-loaded position in which a distal end of the active fixation tine points away from the implantable medical device to a hooked position in which the distal end of the active fixation tine bends back towards the implantable medical device; a catheter forming a lumen sized to receive the implantable medical device and hold each active fixation tine of the set of active fixation tines in the spring-loaded position, wherein the catheter defines an aperture that is adjacent to a distal end of the catheter; and a deployment element configured to initiate deployment of the set of active fixation tines while the implantable medical device is positioned within the lumen of the catheter such that respective distal ends of the set of active fixation tines are adjacent the distal end of the catheter, wherein the set of active fixation tines are configured such that the deployment of the set of active fixation tines from the spring-loaded position to the hooked position pulls the implantable medical device out of the lumen via the aperture at the distal end of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A kit for implanting an implantable medical device within a patient, the kit comprising:
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the implantable medical device; a set of active fixation tines attached to the implantable medical device adjacent a distal end of the implantable medical device, wherein each active fixation tine of the set of active fixation tines is configured to be deployed from a spring-loaded position in which a distal end of the active fixation tine points away from the implantable medical device to a hooked position in which the distal end of the active fixation tine bends back towards the implantable medical device; a catheter forming a lumen sized to receive the implantable medical device and hold each active fixation tine of the set of active fixation tines in the spring-loaded position, wherein the catheter defines an aperture that is adjacent to a distal end of the catheter; and a deployment element configured to initiate deployment of the set of active fixation tines while the implantable medical device is positioned within the lumen of the catheter such that respective distal ends of the set of active fixation tines are adjacent the distal end of the catheter, wherein the set of active fixation tines are configured such that the deployment of the set of active fixation tines from the spring-loaded position to the hooked position pulls the implantable medical device out of the lumen via the aperture at the distal end of the catheter, and wherein the distal end of each active fixation tine of the set of active fixation tines comprises a generally straight segment and a portion of each tine proximal to the generally straight segment comprises an arcuate segment. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification