Electrode insertion tools, lead assemblies, kits and methods for placement of cardiac device electrodes
First Claim
1. A system for implanting an implantable cardiac stimulus device having an implantable canister, the system comprising:
- an introducer tool for implanting a lead for the implantable cardiac stimulus device, the introducer tool having a proximal end with a handle, a distal end including a dissecting tip, and a shaft therebetween, the distal end also including an engaging structure disposed on an outer portion of the shaft at a location proximal of but adjacent to the dissecting tip; and
a cardiac electrode lead having at least one of a sensing electrode and/or a stimulus electrode disposed thereon, the lead comprising a first end having a receiving structure configured to receive the dissecting tip therein and engage the engaging structure of said introducer tool, and a second end having an attachment structure for attaching to the implantable canister;
wherein;
the engaging structure and the first end of the lead are configured for releasable coupling to one another;
the engaging structure includes a threaded portion;
the receiving structure includes threads for matching the engaging structure; and
the threaded portion of the engaging structure forms part of an outer surface of the dissecting tip of the introducer tool.
1 Assignment
0 Petitions
Accused Products
Abstract
Insertion tools, lead assemblies, kits, and methods for placement of cardiac device electrodes. In some embodiments, an insertion tool having a proximal end and a distal, dissecting end includes a structure configured to receive or engage a structure on a lead assembly. Some embodiments include a lead assembly having an end including a structure configured for engaging the distal end of an associated insertion tool. Some embodiments include kits or systems including both an insertion tool and a lead assembly, each having a structure for engaging the other. In these embodiments, the engaging structures may take several forms including threads, small posts, circular or semi-circular receiving members, and/or a slot. Some embodiments also include methods for placement of cardiac device electrodes with the assistance of an associated insertion tool, wherein the cardiac device electrodes are associated with a lead assembly having an end configured to engage a distal, dissecting portion of an associated insertion tool.
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Citations
9 Claims
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1. A system for implanting an implantable cardiac stimulus device having an implantable canister, the system comprising:
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an introducer tool for implanting a lead for the implantable cardiac stimulus device, the introducer tool having a proximal end with a handle, a distal end including a dissecting tip, and a shaft therebetween, the distal end also including an engaging structure disposed on an outer portion of the shaft at a location proximal of but adjacent to the dissecting tip; and a cardiac electrode lead having at least one of a sensing electrode and/or a stimulus electrode disposed thereon, the lead comprising a first end having a receiving structure configured to receive the dissecting tip therein and engage the engaging structure of said introducer tool, and a second end having an attachment structure for attaching to the implantable canister;
wherein;the engaging structure and the first end of the lead are configured for releasable coupling to one another; the engaging structure includes a threaded portion; the receiving structure includes threads for matching the engaging structure; and the threaded portion of the engaging structure forms part of an outer surface of the dissecting tip of the introducer tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification