Extravascular implant tools utilizing a bore-in mechanism and implant techniques using such tools
AssigneeMedtronic, Inc.
InventorsRonald A. Drake, Kevin R. Seifert, Lester O. Stener, Amy E. Thompson-Nauman
Life of this patent
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Abstract
Extravascular implant tools that utilize a bore-in mechanism to safely access extravascular locations and implant techniques utilizing these tools are described. The bore-in mechanism may include a handle and a helix extending from the handle. The bore-in mechanism is used, for example, in conjunction with a tunneling tool to traverse the diaphragmatic attachments to access a substernal location. The tunneling tool may be an open channel tunneling tool or a conventional tunneling tool (e.g., metal rod).
Claims19
A system for implanting an implantable medical lead at least partially within a substernal space of a patient, the system comprising:
- a delivery tool separate from the implantable medical lead, the delivery tool comprising:
- a delivery tool handle;
- and
- a delivery tool shaft,
- wherein a proximal end of the delivery tool shaft is attached to the delivery tool handle,
- wherein the delivery tool shaft defines an open channel that is open along an entire section of the delivery tool shaft, the delivery tool shaft defining a width of the open channel, and the section extending from near the proximal end of the delivery tool shaft to a distal end of the delivery tool shaft, wherein the open channel terminates distal to a proximal end of the delivery tool handle, and wherein a cross-section of the delivery tool shaft at every point along the entire section is arc-shaped;
- and
- a bore-in mechanism separate from the implantable medical lead, the bore-in mechanism configured to interact with the delivery tool to access the substernal space, and the bore-in mechanism including a bore-in mechanism handle and a bore-in device extending from the bore-in mechanism handle,
- wherein the bore-in device includes a bore-in mechanism shaft supporting a helical component configured to advance into tissue of a patient as the bore-in mechanism rotates,
- wherein the delivery tool shaft is configured such that the width allows the bore-in mechanism shaft and the helical component to pass through the width to position within the open channel, and
- wherein the delivery tool shaft is configured such that the width prevents the bore-in mechanism handle from passing through the width to position within the open channel.
A system for implanting an implantable medical lead at least partially within a substernal space of a patient comprising:
- a delivery tool separate from the implantable medical lead, the delivery tool comprising:
- a delivery tool handle;
- and
- a delivery tool shaft,
- wherein a proximal end of the delivery tool shaft is adjacent to the delivery tool handle,
- wherein the delivery tool shaft defines an open channel that is an entire section of the delivery tool shaft, the delivery tool shaft defining a width of the open channel, and the section extending from near the proximal end of the delivery tool shaft to a distal end of the delivery tool shaft, the open channel terminating distal to a proximal end of the delivery tool handle, and
- wherein a cross-section of the delivery tool shaft at every point along the entire section is arc-shaped;
- and
- a bore-in mechanism separate from the implantable medical lead, the bore-in mechanism is configured to interact with the delivery tool to access the substernal space, and the bore-in mechanism including a bore-in mechanism handle and a bore-in device extending from the bore-in mechanism handle,
- wherein the bore-in device includes a bore-in mechanism shaft supporting a helical component configured to advance into tissue of the patient,
- wherein the delivery tool shaft is configured such that the width allows the bore-in mechanism shaft and the helical component to pass through the width to position within the open channel,
- wherein the delivery tool shaft is configured such that the width prevents the bore-in mechanism handle from passing through the width to position within the open channel,
- wherein the bore-in mechanism shaft and the helical element are configured to bend when the width allows the bore-in mechanism shaft and the helical component to position within the open channel and the width prevents the bore-in mechanism handle from positioning within the open channel, and
- wherein the helical component comprises a helical thread.
Dependencies are inferred from the claim text.