Lead locking device and method
First Claim
1. A lead locking device, comprising:
- a lead insertion member having a proximal end and a distal end and comprising a lead engaging assembly, said lead insertion member defining a lumen extending along a longitudinal axis between said distal end and said proximal end of said lead engaging assembly, a mandrel disposed in said lumen of said lead engaging assembly extending along substantially the entire length of said lumen and protruding beyond the most proximal end of said lead insertion member, said mandrel including a distal portion in slidable contact with at least a portion of said lead engaging assembly, wherein said lead engaging assembly has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging said lead from within said lumen of said lead, wherein said lead engaging member comprises at least two expansion jaws that in said first configuration define a substantially cylindrical body, and wherein said at least two expansion jaws translate radially outward from the longitudinal axis to engage said lumen of said lead when in said second configuration.
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Accused Products
Abstract
A lead locking device has a lead insertion member having a proximal end and a distal end and has a lead engaging assembly. The lead insertion member defines a lumen extending along a longitudinal axis between the distal end and the proximal end of the lead engaging assembly. A mandrel disposed in the lumen of the lead engaging assembly extends along substantially the entire length of the lumen and protrudes beyond the most proximal end of the lead insertion member. The mandrel includes a distal portion in slidable contact with at least a portion of the lead engaging assembly. The lead engaging assembly has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging the lead from within the lumen of the lead. The lead engaging member has at least two expansion jaws that, in the first configuration, define a substantially cylindrical body. The expansion jaws translate radially outwardly from the longitudinal axis to engage the lumen of the lead when in the second configuration.
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Citations
79 Claims
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1. A lead locking device, comprising:
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a lead insertion member having a proximal end and a distal end and comprising a lead engaging assembly, said lead insertion member defining a lumen extending along a longitudinal axis between said distal end and said proximal end of said lead engaging assembly, a mandrel disposed in said lumen of said lead engaging assembly extending along substantially the entire length of said lumen and protruding beyond the most proximal end of said lead insertion member, said mandrel including a distal portion in slidable contact with at least a portion of said lead engaging assembly, wherein said lead engaging assembly has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging said lead from within said lumen of said lead, wherein said lead engaging member comprises at least two expansion jaws that in said first configuration define a substantially cylindrical body, and wherein said at least two expansion jaws translate radially outward from the longitudinal axis to engage said lumen of said lead when in said second configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A lead locking device, comprising:
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a lead engaging member having a distal end and a proximal end, said lead engaging member including a series of juxtaposed sections, each section forming a through hole and each through hole being aligned with an adjacent through hole of an adjacent section to define a bore hole extending along a longitudinal axis between said distal end and said proximal end;
a mandrel disposed in said bore hole and fixedly attached to at least one of said sections of said lead engaging member, said mandrel extending along substantially the entire length of said bore hole and protruding beyond the most proximal end of said lead engaging member, wherein said lead engaging member has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging said lead from within said lumen of said lead. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of removing a lead implanted in a patient'"'"'s body, comprising:
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inserting a lead locking device into a lumen defined by said lead, said lead locking device comprising a lead engaging member that extends along substantially the entire length of said lead, said lead engaging member having a narrower overall radial dimension in a relaxed configuration than in a radially torqued configuration, wherein said lead engaging member is in said relaxed configuration during said inserting said lead locking device;
applying a torque to said lead engaging member, wherein said applying said torque to said lead engaging member cause the lead engaging member to have an overall radial dimension that is substantially equal to an inner diameter of said lumen of said lead; and
applying traction to said lead locking device, wherein said lead engaging member engages said lead along substantially the entire longitudinal length of said lead. - View Dependent Claims (36, 37)
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38. A lead locking device, comprising:
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a hypotube defining a plurality of openings therein, said hyptotube having a longitudinal axis extending between a distal end and a proximal end thereof;
a lead engaging member disposed in said hypotube, said lead engaging member including a plurality of bristles radially extending from a mandrel, said bristles being resiliently biased in an outward radial direction of the longitudinal axis, said mandrel being disposed generally along said longitudinal axis and extending along substantially the entire length of said hypotube and protruding beyond the most proximal end of said hypotube, wherein said lead engaging member has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging said lead from within said lumen of said lead. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A method of removing a lead implanted in a patient'"'"'s body, comprising:
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inserting a lead locking device into a lumen defined by said lead, said lead locking device comprising a hypotube having a plurality of openings formed therein, a lead engaging member disposed in said hypotube, said lead engaging member including a plurality of bristles radially extending from a mandrel, said bristles being resiliently biased in the outward radial direction of the longitudinal axis, said bristles being disposed within said hypotube in a first configuration for inserting said lead locking device into said lead, applying an axial force to said mandrel so that bristles of said lead engaging member protrude from said openings to engage the lead, wherein the overall radial dimension of the distal ends of said bristles is substantially equal to an inner diameter of said lumen of said lead; and
applying traction to said lead locking device, wherein said lead engaging member engages said lead along substantially the entire longitudinal length of said lead. - View Dependent Claims (50, 51)
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52. A lead locking device, comprising:
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a mandrel; and
a lead engaging member having a distal end and a proximal end, said lead engaging member including a plurality of radially expandable elastic members disposed around said mandrel, wherein said mandrel extends along a longitudinal axis between said distal end and said proximal end, said mandrel protruding beyond the most proximal end of said lead engaging member, and wherein said lead engaging member has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging said lead from within said lumen of said lead. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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68. A method of removing a lead implanted in a patient'"'"'s body, comprising:
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inserting a lead locking device into a lumen defined by said lead, said lead locking device comprising a plurality of radially expandable elastic members disposed around a mandrel, each of said plurality of radially expandable elastic members having a smaller radial dimension in a relaxed configuration than in a compressed configuration, wherein said elastic members being in a relaxed configuration during said inserting said lead locking device;
applying an axial compressive force to said elastic members so that said elastic members of said lead engaging member extend radially outward to engage the lumen of the lead in the compressed configuration, wherein the transverse diameter of some of the elastic members in the compressed configuration are substantially equal to an inner diameter of said lumen of said lead;
applying traction to said lead locking device, wherein said lead engaging member engages said lead along substantially the entire longitudinal length of said lead. - View Dependent Claims (69, 70)
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71. A method of removing a lead implanted in a patient'"'"'s body, comprising:
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attaching a lead locking device to said lead along at least about 30% of an entire longitudinal length of said lead; and
applying a traction force to said lead locking device. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79)
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Specification