| US 7,463,934 B2 | ||
| Implantable medical device with captivation fixation | ||
| Carole Tronnes, St. Paul, Minn. (US); John M. Swoyer, Andover, Minn. (US); and Martin T. Gerber, Maple Grove, Minn. (US) | ||
| Assigned to Medtronic, Inc., Minneapolis (US) | ||
| Filed on Apr. 12, 2002, as Appl. No. 10/121,484. | ||
| Prior Publication US 2003/0195600 A1, Oct. 16, 2003 | ||
| Int. Cl. A61N 1/36 (2006.01) | ||
| U.S. Cl. 607—133 | 59 Claims |
| 1. An implantable intramuscular lead system comprising:
at least one elongate lead for at least partially implanting in tissue, the lead having a length, and opposite ends;
a first anchor preattached to the lead; and
a second anchor mounted on the lead for movement along the length of the lead relative to the first anchor to capture the
tissue between the anchors so that the lead is retained in position, a portion of the second anchor comprising a surface configured
to abut the tissue, wherein the surface is oriented at an angle with respect to a center axis of the second anchor,
wherein the surface tapers from a distal outer perimeter of the portion of the second anchor to a narrower proximal outer
perimeter of the portion of the second anchor, wherein the second anchor is mounted on the lead such that the proximal outer
perimeter of the portion of the second anchor is located along the lead between the first anchor and the distal outer perimeter
of the portion of the second anchor.
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