Endocardial lead cutting apparatus
First Claim
1. An endocardial lead cutting apparatus for cutting a lead implanted within a patient, said apparatus comprising:
- a generally flexible tubular member;
a tension member disposed within said tubular member and including a distal end and a proximal end;
at least one blade affixed to said distal end of said tension member;
an adjustment mechanism adapted to adjust said tension member and said at least one blade between an extended position and a retracted position; and
wherein said adjustment mechanism includes a female member, a male member and an anchor, said anchor affixed to said proximal end of said tension member and said male member such that insertion and withdrawal of said male member within said female member moves said tension member and said at least one blade between said extended position and said retracted position.
8 Assignments
0 Petitions
Accused Products
Abstract
The invention provides an apparatus for cutting an endocardial lead within a patient. The apparatus includes a tubular member and a tension member disposed therein. The tension member includes a distal end and a proximal end. A blade is affixed to the distal end of the tension member and an adjustment mechanism is adapted to adjust the tension member and blade between an extended position and a retracted position. The adjustment mechanism includes a female member, a male member and an anchor. The anchor is affixed to the proximal end of the tension member and the male member. Insertion and withdrawal of the male member within the female member moves the tension member and the blade between the extended position and the retracted position. An alternate embodiment includes a capture mechanism or guide wire for drawing the apparatus and lead closer together before extending the blade and cutting the lead.
82 Citations
30 Claims
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1. An endocardial lead cutting apparatus for cutting a lead implanted within a patient, said apparatus comprising:
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a generally flexible tubular member; a tension member disposed within said tubular member and including a distal end and a proximal end; at least one blade affixed to said distal end of said tension member; an adjustment mechanism adapted to adjust said tension member and said at least one blade between an extended position and a retracted position; and wherein said adjustment mechanism includes a female member, a male member and an anchor, said anchor affixed to said proximal end of said tension member and said male member such that insertion and withdrawal of said male member within said female member moves said tension member and said at least one blade between said extended position and said retracted position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 21)
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16. An endocardial lead cutting apparatus for cutting a lead implanted within a patient, said apparatus comprising:
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a generally flexible tubular member having a distal tip; a tension member disposed within said tubular member and including a distal end and a proximal end; at least one blade affixed to said distal end of said tension member; an adjustment mechanism adapted to adjust said tension member and said at least one blade between an extended position and a retracted position; and a capture mechanism for grasping the lead; wherein said adjustment mechanism includes a female member, a male member and an anchor, said anchor affixed to said proximal end of said tension member and said male member such that insertion and withdrawal of said male member within said female member moves said tension member and said at least one blade between said extended position and said retracted position. - View Dependent Claims (17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An endocardial lead cutting apparatus for cutting a lead implanted within a patient, said apparatus comprising:
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a generally flexible tubular member having a distal tip; a tension member disposed within said tubular member and including a distal end and a proximal end; at least one blade affixed to said distal end of said tension member; an adjustment mechanism adapted to adjust said tension member and said at least one blade between an extended position and a retracted position; and a capture mechanism for grasping the lead wherein said generally flexible tubular member includes a distal tip having a slot adapted to receive said at least one blade when moved from said extended position to said retracted position, said slot being oriented to minimize rotation of said at least one blade.
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Specification