Bifurcated stent and method of making same
First Claim
1. A method of making a bifurcated stent, comprising the steps of:
- a) preparing a first sheet having a proximal end and a distal end;
b) providing said first sheet with an expandable pattern;
c) deforming said distal end of said first sheet to form a first leg and deforming said proximal end of said first sheet to form a first stem half;
d) preparing a second sheet having a proximal end and a distal end;
e) providing said second sheet with an expandable pattern;
f) deforming said distal end of said second sheet to form a second leg and deforming said proximal end of said second sheet to form a second stem half; and
g) joining said first stem half to said second stem half to form a stem.
1 Assignment
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Accused Products
Abstract
A bifurcated stent for insertion into a bifurcated vessel such as a blood vessel. In one embodiment, a first sheet is formed into a first leg, a second sheet is formed into a second leg, a third sheet is formed into a stem, and the two legs are attached to the stem. In a second embodiment, a first sheet is formed into a member having a first leg and half of a stem, a second sheet is formed into a second member having a second leg and half of a stem, and the two stem halves are combined to form the bifurcated stent. In a third embodiment, the stent comprises two sections that are serially inserted and assembled within the vessel at the site of the bifurcation to be treated.
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Citations
35 Claims
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1. A method of making a bifurcated stent, comprising the steps of:
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a) preparing a first sheet having a proximal end and a distal end; b) providing said first sheet with an expandable pattern; c) deforming said distal end of said first sheet to form a first leg and deforming said proximal end of said first sheet to form a first stem half; d) preparing a second sheet having a proximal end and a distal end; e) providing said second sheet with an expandable pattern; f) deforming said distal end of said second sheet to form a second leg and deforming said proximal end of said second sheet to form a second stem half; and g) joining said first stem half to said second stem half to form a stem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A bifurcated stent comprising:
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a) a first sheet having a proximal end and a distal end;
said distal end of said first sheet deformed to form a first leg and said proximal end of said first sheet deformed to form a first stem half;b) a second sheet having a proximal end and a distal end;
said distal end of said second sheet deformed to form a second leg and said proximal end of said second sheet deformed to form a second stem half; andc) means for joining said first stem half to said second stem half to form a stem. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of making a bifurcated stent, comprising the steps of:
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a) preparing a first sheet having a proximal end and a distal end and having a first side, a second side, a third side, a fourth side, a fifth side, a sixth side, a seventh side, and an eighth side; b) deforming said distal end of said first sheet and joining said fourth side to said sixth side to form a first leg and deforming said proximal end of said first sheet to form a first stem half; c) preparing a second sheet having a proximal end and a distal end and having a first side, a second side, a third side, a fourth side, a fifth side, a sixth side, a seventh side, and an eighth side; d) deforming said distal end of said second sheet and joining said fourth side to said sixth side to form a second leg and deforming said proximal end of said second sheet to form a second stem half; and e) joining said eighth of said first stem half to said second side of said second stem half and joining said second side of said first stem half to said eighth side of said second stem half to form a stem. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A bifurcated stent comprising:
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a) a first sheet having a proximal end and a distal end and having a first side, a second side, a third side, a fourth side, a fifth side, a sixth side, a seventh side and an eighth side;
said fourth side and said sixth side of said first sheet deformed and joined to form a first leg and said proximal end of said first sheet deformed to form a first stem half;b) a second sheet having a proximal end and a distal end and having a first side, a second side, a third side, a fourth side, a fifth side, a sixth side, a seventh side and an eighth side;
said fourth side and said sixth side of said second sheet deformed and joined to form a second leg and said proximal end of said second sheet deformed to form a second stem half; andc) means for joining said eighth side of said first stem half to said second side of second stem half and joining said second side of said first stem half to said eighth side of said second stem half to form a stem. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification