Medical device anchor and method of manufacture thereof
First Claim
1. A medical device anchor for use with electrical stimulation leads or catheters comprising:
- a gripping structure having a generally tubular configuration defining axial and radial directions, the gripping structure being defined by an annular shoulder and a plurality of compressible beams extending axially from the annular shoulder wherein the shoulder extends radially outwardly beyond the beams;
a body portion formed by molding around the gripping structure and retaining the shoulder within the body portion, the body portion further retaining the entire length of the compressible beams within the body portion, the gripping structure and body portion defining a lumen extending in the axial direction for receiving a lead or catheter, whereinthe gripping structure has a first end and a second end opposite the first end, each compressible beam having a first end corresponding to the first end of the gripping structure and a second end corresponding to the second end of the gripping structure;
the plurality of compressible beams being arranged in substantially parallel circumferentially spaced apart array defining the generally tubular configuration of the gripping structurethe annular shoulder comprises a plurality of shoulder segments separated from one another in alternating fashion by a plurality of shoulder gaps forming a generally annular array of shoulder segments and shoulder gaps, the first ends of the compressible beam being alternately bridged or unbridged by the shoulder segments and shoulder gaps;
the gripping structure further comprises a plurality of bridging segments separated from one another in alternating fashion by a plurality of unbridged gaps forming a generally annular array of bridging portions and unbridged gaps, the second ends of the compressible beam being alternately bridged or unbridged by the bridging segments and unbridged gaps such that the gripping structure forms a serpentine arrangement of a continuous nature with the compressible beams alternately interconnected between shoulder segments and bridging segments.
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Accused Products
Abstract
A medical device anchor for use with electrical stimulation leads or catheters, and method of manufacture thereof. The anchor may include a gripping structure and a body portion molded on the gripping structure. The gripping structure forms a serpentine arrangement of a continuous nature with axial segments alternately interconnected between shoulder segments and bridging segments. The shoulder segments extend radially outward relative to the through hole further than the axial segments. The body portion may be formed by molding to securely capture the shoulder in the body portion, with the body portion being molded of material that is softer and more compliant than the gripping structure.
5 Citations
24 Claims
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1. A medical device anchor for use with electrical stimulation leads or catheters comprising:
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a gripping structure having a generally tubular configuration defining axial and radial directions, the gripping structure being defined by an annular shoulder and a plurality of compressible beams extending axially from the annular shoulder wherein the shoulder extends radially outwardly beyond the beams; a body portion formed by molding around the gripping structure and retaining the shoulder within the body portion, the body portion further retaining the entire length of the compressible beams within the body portion, the gripping structure and body portion defining a lumen extending in the axial direction for receiving a lead or catheter, wherein the gripping structure has a first end and a second end opposite the first end, each compressible beam having a first end corresponding to the first end of the gripping structure and a second end corresponding to the second end of the gripping structure; the plurality of compressible beams being arranged in substantially parallel circumferentially spaced apart array defining the generally tubular configuration of the gripping structure the annular shoulder comprises a plurality of shoulder segments separated from one another in alternating fashion by a plurality of shoulder gaps forming a generally annular array of shoulder segments and shoulder gaps, the first ends of the compressible beam being alternately bridged or unbridged by the shoulder segments and shoulder gaps; the gripping structure further comprises a plurality of bridging segments separated from one another in alternating fashion by a plurality of unbridged gaps forming a generally annular array of bridging portions and unbridged gaps, the second ends of the compressible beam being alternately bridged or unbridged by the bridging segments and unbridged gaps such that the gripping structure forms a serpentine arrangement of a continuous nature with the compressible beams alternately interconnected between shoulder segments and bridging segments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A medical device anchor for use with electrical stimulation leads or catheters comprising:
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a gripping structure forming a through hole having a circumference, wherein axial, circumferential and radial directions are defined relative to the through hole, the gripping structure having; a plurality of compressible axial segments arranged in a generally parallel, spaced apart array along the circumference of the through hole, each axial segment having first and second ends; and a plurality of shoulder segments separated from one another in alternating fashion by a plurality of shoulder gaps forming a generally annular array of shoulder segments and shoulder gaps, the first ends of the axial segments being alternately bridged or unbridged by the shoulder segments and shoulder gaps, the shoulder segments extending radially outward relative to the through hole further than the axial segments; and a plurality of bridging segments separated from one another in alternating fashion by a plurality of unbridged gaps forming a generally annular array of bridging portions and unbridged gaps, the second ends of the axial segments being alternately bridged or unbridged by the bridging segments and unbridged gaps such that the gripping structure forms a serpentine arrangement of a continuous nature with the axial segments alternately interconnected between shoulder segments and bridging segments; and a body portion formed by molding to retain the shoulders within the body portion, the gripping structure and body portion defining a lumen for receiving a lead or catheter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification