Implantable lead having self-locking suture sleeve
First Claim
Patent Images
1. An implantable lead comprising:
- a lead body extending between a proximal end and a distal end, the lead body having an outer diameter;
an electrical connector element positioned at the proximal end of the lead body;
an electrode assembly positioned at the distal end of the lead body; and
a self-locking suture sleeve having a first end and a second end, the suture sleeve movable about at least a portion of the lead body between the proximal end and the distal end, the self-locking suture sleeve comprising;
a tubing element having a first end and a second end, the tubing element axially disposed about the outer diameter of the lead body, the tubing element first and second ends being affixed to respective ones of the ends of the self-locking suture sleeve;
means for elongating the tubing element so that the tubing element constrictably grips the lead body.
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Abstract
A movable self-locking suture sleeve which can be securely positioned on the lead body of a pacing lead. The self-locking suture sleeve includes first and second cooperative rigid elements interconnected by a flexible tubing element. The tubing element is constructed from a woven mesh designed to constrict when stretched. A resilient element or spring is interposed between the first and second cooperative rigid elements, tending to force the cooperative rigid elements axially apart. Once the suture sleeve is moved into position, a self-locking feature allows the suture sleeve to secure itself to the lead body.
122 Citations
37 Claims
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1. An implantable lead comprising:
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a lead body extending between a proximal end and a distal end, the lead body having an outer diameter; an electrical connector element positioned at the proximal end of the lead body; an electrode assembly positioned at the distal end of the lead body; and a self-locking suture sleeve having a first end and a second end, the suture sleeve movable about at least a portion of the lead body between the proximal end and the distal end, the self-locking suture sleeve comprising; a tubing element having a first end and a second end, the tubing element axially disposed about the outer diameter of the lead body, the tubing element first and second ends being affixed to respective ones of the ends of the self-locking suture sleeve; means for elongating the tubing element so that the tubing element constrictably grips the lead body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An implantable lead comprising:
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a lead body having an outer diameter; and a self-locking suture sleeve comprising; a first rigid element having a generally cylindrical configuration including a stepped internal bore, the first rigid element having a first end and a second end; a second rigid element having a generally cylindrical portion, the second rigid element having a first end and a second end, and having an outer diameter allowing at least partial insertion of the first end of the second rigid element into the internal bore of the first rigid element, at the first end of the first rigid element; a tubing element axially disposed about the outer diameter of the lead body, the tubing element affixed at its first and second ends to the second ends of the first and second rigid elements respectively; and means for elongating the tubing element so that the diameter of at least a portion of the tubing element constricts about the lead body. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of securing an suture sleeve onto an implantable lead, the suture sleeve having a first end and a second end, and further having a cylindrical woven mesh of biocompatible material affixed to the first and second ends, the implantable lead comprising a lead body having an outer diameter, comprising the steps of:
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placing the suture sleeve on the implantable lead whereby such that the cylindrical woven mesh of biocompatible material is axially disposed about the outer diameter of the lead body; and forcibly constricting at least a portion of the cylindrical woven mesh of biocompatible material, thereby frictionally securing the suture sleeve onto the lead body.
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28. A method for forming a suture sleeve comprising the steps of:
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forming a first rigid element having a generally cylindrical configuration including an internal bore, the first rigid element having a first end and a second end; forming a second rigid element having a generally cylindrical portion, the second rigid element having a first end and a second end; partially inserting the first end of the second rigid element into the internal bore of the first rigid element at the first end of the first rigid element; affixing a first end and a second end of a cylindrical woven mesh of biocompatible material to the second ends of the first and second rigid elements respectively; and biasing the first and second rigid elements with a resilient element so that when the resilient element is forced into a compressed state the cylindrical woven mesh of biocompatible material is in a relaxed state and the suture sleeve is slidable about a lead body, and when the resilient element is released the cylindrical woven mesh of biocompatible material grips the lead body. - View Dependent Claims (29)
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30. An implantable lead comprising:
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a lead body having an outer diameter, the lead body extending between a proximal end and a distal end; an electrical connector element positioned at a proximal end of the lead body; an electrode assembly positioned at the distal end of the lead body; and a self-locking suture sleeve movable about at least a portion of the lead body between the proximal end and the distal end the self-locking suture sleeve having a first end and a second end, the self-locking suture sleeve comprising; a tubular woven mesh of biocompatible material axially disposed about the outer diameter of the lead body, the tubular woven mesh being affixed at its ends to the first and second ends of the self-locking suture sleeve, the tubular woven mesh having a smaller inner diameter when the tubular woven mesh is elongated and a wider inner diameter when the tubular woven mesh is compressed; whereby the suture sleeve frictionally grips the lead body when the tubular woven mesh is elongated and enables the suture sleeve to slide when the tubular woven mesh is compressed. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification