EP0625359A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Implantable lead having self-locking suture sleeve
Assignee: Siemens AG
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Filing: 1994-05-18
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Granted: —
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Expires: 2014-05-18
Abstract
Abstract A movable self-locking suture sleeve (50) which can be securely positioned on the lead body (22) of a pacing lead (20). The self-locking suture sleeve (50) includes first and second cooperative rigid elements (52,54) interconnected by a flexible tubing element (56). The tubing element (56) is constructed from a woven mesh designed to constrict when stretched. A resilient element or spring (58) is interposed between the first and second cooperative rigid elements (52,54), tending to force these elements axially apart, thereby constricting the suture sleeve (50) around the lead body (22).
Inventors
- 👤 Diane M. Muff
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 12:22
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/057; A61N2001/0582
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
143 words
An implantable lead comprising: a lead body (22) extending between a proximal end (26) and a distal end (34); an electrical connector element (28) positioned at the proximal end (26) of the lead body (22); an electrode assembly (36) positioned at the distal end (34) of the lead body (22); and a suture sleeve (50) movable relative to at least a portion of the lead body (22) between the proximal end (26) and the distal end (34); characterised in that the suture sleeve is a self-locking suture sleeve (50) which includes: a tubing element (56) axially disposed about the outer diameter of the lead body (22), the tubing element (56) being affixed to opposite ends of the self-locking suture sleeve (50); and means (58) for radially constricting the tubing element (56) so that the tubing element (56) constrictably grips the lead body (22).
Claim 2
Dependent Claim
143 words
An implantable lead comprising: a lead body (22) extending between a proximal end (26) and a distal end (34); an electrical connector element (28) positioned at the proximal end (26) of the lead body (22); an electrode assembly (36) positioned at the distal end (34) of the lead body (22); and a suture sleeve (50) movable relative to at least a portion of the lead body (22) between the proximal end (26) and the distal end (34); characterised in that the suture sleeve is a self-locking suture sleeve (50) which includes: a tubing element (56) axially disposed about the outer diameter of the lead body (22), the tubing element (56) being affixed to opposite ends of the self-locking suture sleeve (50); and means (58) for radially constricting the tubing element (56) so that the tubing element (56) constrictably grips the lead body (22).
Claim 3
Dependent Claim
64 words
Alead as claimed in Claim 1, characterised in that the tubing element (56) comprises a cylindrical woven mesh of biocompatible material, for example a polymer or a metallic material, the mesh (56) being woven so that the mesh (56) has a smaller inner diameter when the mesh (56) is elongated or twisted and a greater inner diameter when the mesh (56) is axially compressed.
Claim 4
Dependent Claim
25 words
A lead as claimed in Claim 1, characterised in that the tubing element (56) comprises a cylindrical element formed from a resilient, biocompatible elastomeric material.
Claim 5
Dependent Claim
103 words
A lead as claimed in any preceding Claim, characterised in that the self-locking suture sleeve (50) comprises: a first housing (52) having a generally cylindrical configuration and an internal bore; and a second housing (54) having a generally cylindrical portion (70), the generally cylindrical portion (70) having an outer diameter allowing at least partial insertion of the second housing (54) into the internal bore (64) of the first housing (52); the tubing element (56) being axially disposed about the outer diameter of the lead body (22), and being affixed at its end to the distal ends of the first and second housings (52,54).
Claim 6
Dependent Claim
78 words
A lead as claimed in any preceding Claim, characterised in that the radially constricting means consists of elongating means which comprises a resilient element (58) acting upon the tubing element (56) and operable between a relaxed state and a compressed state, such that when the resilient element (58) is in its compressed state the tubing element (56) is in a relaxed state, and when the resilient element (58) expands to its relaxed state the tubing element (56) constricts.
Claim 7
Dependent Claim
28 words
Alead as claimed in Claim 4, characterised in that the resilient element is a spring element (58), for example a compression spring (58) or a torsion spring (58).
Claim 8
Dependent Claim
66 words
A lead as claimed in any of Claims 4 to 6, characterised in that the resilient element (58) is a spring positioned to bias the first and second housings (52,54) apart so that when the spring (58) is in a compressed state the tubing element (56) is in a relaxed state, and when the spring (58) expands to its relaxed state the tubing element (56) constricts.
Claim 9
Dependent Claim
25 words
Alead as claimed in Claim 4, characterised in that the radially constricting means includes means for causing relative rotation of the first and second housings.
Claim 10
Dependent Claim
27 words
Alead as claimed in Claim 8, characterised in that the means (158) for causing relative rotation of the first and second housings (152,154) is a torsion spring.
Claim 11
Dependent Claim
86 words
Alead as claimed in Claim 8, characterised in that the means for causing relative rotation of the first and second housings (152,154) comprises: a projecting element (110) extending from a surface of one of the housings (154); a helical groove (112) formed within an adjacent surface of the other housing (152), whereby the projecting element (110) extends into and helically tracks the helical groove (112); and resilient means (158) or biasing the first and second housings (152,154) apart thereby causing the relative translational and rotational motion.
Claim 12
Dependent Claim
134 words
A self-locking suture sleeve (50) for an implantable lead (20) characterised by: a first rigid element (52) having a generally cylindrical configuration including a stepped internal bore (64); a second rigid element (54) having a generally cylindrical portion (70), the second rigid element (54) having an outer diameter allowing at least partial insertion of the second rigid element (54) into the internal bore (64) of the first rigid element (52); a buting element (56) arranged to axially disposed about the outer diameter of the lead body (22), the tubing element (56) being affixed to opposite distal ends of the first and second rigid elements (52,54); and means (58) for elongating the tubing element (56) so that the diameter of at least a portion of the tubing element (56) constricts about the lead body (22).
Claim 13
Dependent Claim
134 words
A self-locking suture sleeve (50) for an implantable lead (20) characterised by: a first rigid element (52) having a generally cylindrical configuration including a stepped internal bore (64); a second rigid element (54) having a generally cylindrical portion (70), the second rigid element (54) having an outer diameter allowing at least partial insertion of the second rigid element (54) into the internal bore (64) of the first rigid element (52); a buting element (56) arranged to axially disposed about the outer diameter of the lead body (22), the tubing element (56) being affixed to opposite distal ends of the first and second rigid elements (52,54); and means (58) for elongating the tubing element (56) so that the diameter of at least a portion of the tubing element (56) constricts about the lead body (22).
Claim 14
Dependent Claim
43 words
A suture sleeve as claimed in Claim 11, characterised in that the tubing element (56) comprises a cylindrical woven mesh of a biocompatible material, for example a polymer or a metallic material, or a cylindrical element formed from a resilient, biocompatible elastomeric material.
Claim 15
Dependent Claim
77 words
A suture sleeve as claimed in Claim 11 or Claim 12, characterised in that the elongating means comprises: a resilient element (58) operable between a relaxed state and a compressed state, and located to bias the two rigid elements (52,54) apart, so that when the resilient element (58) is in compressed state the tubing element (56) is in a relaxed state, and when the resilient element (58) expands to its relaxed state the tubing element (56) constricts.
Claim 16
Dependent Claim
32 words
A suture sleeve as claimed in Claim 11 or Claim 12, characterised in that the elongating means comprises means (158) for causing relative rotation of the first and second rigid elements (152,154).
Claim 17
Dependent Claim
28 words
A suture sleeve as claimed in Claim 15, characterised in that the means for causing relative rotation of the first and second elements is a torsion spring (158).
Claim 18
Dependent Claim
91 words
A suture sleeve as claimed in Claim 15, characterised in that the means for causing relative rotation of the first and second rigid elements (152,154) comprises: a projecting element (110) extending from a surface of one of the rigid elements (154); a helical groove (112) formed within an adjacent surface of the other rigid element (152), whereby the projecting element (110) extends into and helically tracks the helical groove (112); and resilient means (158) for biasing the first and second rigid elements (152,154) apart, thereby causing relative translational and rotational motion.
Claim 19
Independent Claim
102 words
A method of securing a suture sleeve (50) onto an implantable lead (20) comprising the steps of: forming a suture sleeve (50) having the ends of a cylindrical woven mesh (56) of biocompatible material affixed to opposite ends (26,34) of a suture sleeve (50); placing the suture sleeve (50) on the lead (20) whereby the cylindrical woven mesh (56) of biocompatible material is axially disposed about the outer diameter of the lead body (22); and forcibly constricting at least a portion of the cylindrical woven mesh (56) of biocompatible material, thereby frictionally securing the suture sleeve (50) onto the lead body (22).
Claim 20
Independent Claim
102 words
A method of securing a suture sleeve (50) onto an implantable lead (20) comprising the steps of: forming a suture sleeve (50) having the ends of a cylindrical woven mesh (56) of biocompatible material affixed to opposite ends (26,34) of a suture sleeve (50); placing the suture sleeve (50) on the lead (20) whereby the cylindrical woven mesh (56) of biocompatible material is axially disposed about the outer diameter of the lead body (22); and forcibly constricting at least a portion of the cylindrical woven mesh (56) of biocompatible material, thereby frictionally securing the suture sleeve (50) onto the lead body (22).
References Cited (Backward Citations)
No citation records indexed.
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