Pericardium Fixation Concepts of Epicardium Pacing Leads and Tools
First Claim
1. An apparatus adapted to secure a distal portion of a medical electrical lead into a position intermediate a pericardial sac and a surface portion of epicardial tissue of a heart, comprising:
- a body structure comprised of biocompatible material said body structure having an epicardium-contacting side and a pericardial sac-contacting side;
an elongated medical electrical lead mechanically and electrically coupled to said body structure;
means adapted for coupling the pericardial sac-contacting side of the body structure to opposing sides of the pericardium of a heart; and
at least one of an electrode and a physiologic sensor coupled to one of the body structure and the elongated medical electrical lead.
1 Assignment
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Accused Products
Abstract
Certain aspects of the disclosure pertain to methods and apparatus for providing positive fixation of medical components to a portion of incised pericardial tissue. Accordingly, a resilient member protrudes through an incision in the pericardium and produces a positive biasing force to adjacent pericardial tissue against a side surface of an attached body structure. The resilient member can optionally be compressed during implantation and then relaxed to thereafter provide the positive biasing force. Diverse medical components can thus be safely and reliably chronically deployed into the pericardial space, including without limitation, cardiac sensing/pacing, defibrillation and/or cardioversion electrodes, mechanical and/or metabolic sensors and the like. More than one body structure can be linked to a single medical electrical lead and the medical components can couple within and/or upon a portion of the body structure, the resilient member, and the lead in myriad configurations.
127 Citations
20 Claims
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1. An apparatus adapted to secure a distal portion of a medical electrical lead into a position intermediate a pericardial sac and a surface portion of epicardial tissue of a heart, comprising:
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a body structure comprised of biocompatible material said body structure having an epicardium-contacting side and a pericardial sac-contacting side;
an elongated medical electrical lead mechanically and electrically coupled to said body structure;
means adapted for coupling the pericardial sac-contacting side of the body structure to opposing sides of the pericardium of a heart; and
at least one of an electrode and a physiologic sensor coupled to one of the body structure and the elongated medical electrical lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of operatively deploying an implantable medical device into a fixed position within the pericardial space, comprising:
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incising through a first portion of pericardial tissue and a second portion of pericardial tissue; and
advancing an implantable medical device (IMD) through the first portion of pericardial tissue into the pericardial space; and
fixating the IMD to the second portion of pericardial tissue with a mechanically-based biasing member disposed external to the second portion of pericardial tissue. - View Dependent Claims (18, 19, 20)
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Specification