Medical electrical lead employing load bearing sleeve
First Claim
1. A medical electrical lead, comprising:
- an outer sleeve formed of a first material, the outer sleeve having a proximal end and a distal end;
an electrical conductor situated within the outer sleeve and extending between the proximal and distal ends of the outer sleeve;
at least one electrode electrically coupled to the electrical conductor; and
a load bearing sleeve extending between the proximal and distal ends of the outer sleeve, the load bearing sleeve formed of a second material different from the first material, the load bearing sleeve offering resistance to axial loading forces applied to the lead.
1 Assignment
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Accused Products
Abstract
A medical electrical lead employs a load bearing sleeve arrangement. A medical electrical lead includes an outer sleeve, having proximal and distal ends, and is formed of a first material. At least one electrical conductor is situated within the outer sleeve and extends between the proximal and distal ends of the outer sleeve. At least one electrode is electrically coupled to the electrical conductor. A load bearing sleeve extends between the proximal and distal ends of the outer sleeve. The load bearing sleeve is formed of a second material different from the first material. The load bearing sleeve offers resistance to axial loading forces applied to the lead. The load bearing sleeve can be coextensive with the outer sleeve or extend along at least the majority of the length of the outer sleeve.
52 Citations
58 Claims
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1. A medical electrical lead, comprising:
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an outer sleeve formed of a first material, the outer sleeve having a proximal end and a distal end;
an electrical conductor situated within the outer sleeve and extending between the proximal and distal ends of the outer sleeve;
at least one electrode electrically coupled to the electrical conductor; and
a load bearing sleeve extending between the proximal and distal ends of the outer sleeve, the load bearing sleeve formed of a second material different from the first material, the load bearing sleeve offering resistance to axial loading forces applied to the lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A medical electrical lead, comprising:
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an outer sleeve formed of a first material, the outer sleeve having a proximal end and a distal end;
an electrical conductor situated within the outer sleeve and extending between the proximal and distal ends of the outer sleeve;
at least one electrode electrically coupled to the electrical conductor; and
a load bearing sleeve extending between the proximal and distal ends of the outer sleeve, a majority of a length of the load bearing sleeve positioned within the outer sleeve, the load bearing sleeve formed of a second material having a tensile strength greater than that of the first material and a tensile elongation less than that of the first material, an inner surface of a portion of the load bearing sleeve extending over an outer surface of the at least one electrode, and an outer surface of the load bearing sleeve portion exposed through a gap in the outer sleeve. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of implanting a medical electrical lead into a cardiac structure of a patient'"'"'s heart, comprising:
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providing a guiding catheter for longitudinally guiding the lead, the lead having an open lumen and comprising;
an outer sleeve formed of a first material, the outer sleeve having a proximal end and a distal end;
an electrical conductor situated within the outer sleeve and extending between the proximal and distal ends of the outer sleeve;
at least one electrode electrically coupled to the electrical conductor; and
a load bearing sleeve extending between the proximal and distal ends of the outer sleeve, the load bearing sleeve formed of a second material different from the first material, the load bearing sleeve offering resistance to axial loading forces applied to the lead;
inserting the guiding catheter into a chamber of the patient'"'"'s heart via an access vessel; and
inserting the lead through the guiding catheter via the open lumen to implant the lead within or on the cardiac structure. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A medical electrical lead, comprising:
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an outer sleeve formed of a first material, the outer sleeve having a proximal end and a distal end, the outer sleeve comprising;
one or more first locations comprising a third material that substantially prevents tissue in-growth between the first locations and cardiac tissue contacting the first locations; and
one or more adhesion sites provided at the one or more first locations, the adhesion sites promoting tissue in-growth or attachment between the adhesion sites and cardiac tissue contacting the adhesion sites;
an electrical conductor situated within the outer sleeve and extending between the proximal and distal ends of the outer sleeve;
at least one electrode electrically coupled to the electrical conductor; and
a load bearing sleeve extending between the proximal and distal ends of the outer sleeve, the load bearing sleeve formed of a second material differing from the first material, the load bearing sleeve offering resistance to axial loading forces applied to the lead. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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Specification