Atherectomy device with a removable drive system
First Claim
1. An intravascular catheter comprising;
- (a) an elongated flexible jacket having opposed proximal and distal ends and a central passageway extending between the ends;
(b) a working head located at the distal end of the jacket, including a canalizing tip on the working head;
(c) a drive cable extending through the central passageway and having a driving portion operatively located adjacent the distal end, and a driven portion located opposite the driving portion;
(d) means for rotating the cable at the driven end; and
(e) means for releasably coupling the driving end of the cable to the working head to rotate the tip wherein the cable may be uncoupled from the working head and removed from the jacket.
4 Assignments
0 Petitions
Accused Products
Abstract
An intravascular catheter comprises an elongated flexible jacket having opposed proximal and distal ends and a central passageway extending between the ends. A working head is located at the distal end, including a canalizing tip and a bearing for rotatably supporting the tip on the working head to remove occlusions from the lumen of a vessel. A drive cable extends through the central passageway and has a driving portion operatively located adjacent the distal end and a driven portion for releasably engaging the working head located opposite the driving portion. A power-driven motor is coupled to the driven end for rotating the cable. The jacket segments are disconnected and the canalizing tip removed with the drive cable from the catheter and replaced with a guide wire which is inserted through the central passageway.
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Citations
28 Claims
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1. An intravascular catheter comprising;
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(a) an elongated flexible jacket having opposed proximal and distal ends and a central passageway extending between the ends; (b) a working head located at the distal end of the jacket, including a canalizing tip on the working head; (c) a drive cable extending through the central passageway and having a driving portion operatively located adjacent the distal end, and a driven portion located opposite the driving portion; (d) means for rotating the cable at the driven end; and (e) means for releasably coupling the driving end of the cable to the working head to rotate the tip wherein the cable may be uncoupled from the working head and removed from the jacket. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An intravascular catheter comprising;
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(a) an elongated flexible jacket having opposed proximal and distal ends and a central passageway extending between the ends; (b) a working head located at the distal end of the jacket, including bearing means for supporting a rotatable canalizing tip on the working head, the tip including a central guideway and a drive shaft; and (c) a drive cable extending through the central passageway with a driving portion operatively located adjacent the distal end, and a driven portion located opposite the driving portion; (d) means for rotating the cable at the driven end; (e) means for infusing fluid through the central passageway; (f) means for releasably coupling the driving end of the cable to the working head to rotate the tip whereby the cable may be uncoupled from the working head and removed from the jacket and a guide wire inserted through the central passageway without removing the catheter from the lumen of a vessel. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An intravascular catheter comprising:
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(a) an elongated flexible jacket composed of a pair of separable segments joined together at a point intermediate a pair of opposed proximal and distal ends of the jacket, including a central passageway extending between the ends; (b) a working head located at the distal end of the jacket with a canalizing tip having a drive shaft, including bearing means for rotatably supporting the tip on the working head and a keyed guideway which extends through the drive shaft and communicates with the central passageway; (c) means located at the proximal end of the jacket for rotating the tip at relatively high-speeds; (d) means for releasably connecting the segments of the jacket together; and (e) a removable drive assembly having a driving portion which releasably mates with the key way, a driven portion which is coupled to the drive means and a flexible drive cable extending between the driving and driven portions, allowing a guide wire to be inserted through the central passageway without removing the jacket from the vessel. - View Dependent Claims (26, 27, 28)
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Specification