A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/00 (2006.01) A61F 2/06 (2006.01) A61M 25/10 (2006.01) A61M 25/16 (2006.01)
Patent
CA 2270330
A stent crimping tool for firmly and uniformly crimping a conventional or radioactive stmt onto a balloon catheter is constructed from a housing having a proximal section rotatably connected to a distal section. A cylindrical cavity having a tapered end is formed into the proximal section. Inside the cavity is affixed a transparent cylindrical collar having radial slots leading to a central passage extending along its axis, and a conical end that fits into the tapered end. Teeth made of trapezoidally-shaped flat plates each having an angular proximal edge and a radiused edge slide into their respective slots in the collar. A transparent screw-feed having a hollow core and a slotted head that receives the radiused edge of each tooth and plate is threaded to the distal section. A balloon catheter is passed through a passage in the proximal section and the collar and an uncrimped stmt positioned in the hollow core of the screw is loaded thereon. Rotating the distal section of the housing advances the screw and teeth towards the tapered cavity, which has angled walls that force the teeth to converge radially inward. This convergence causes the radiused edges of the teeth to collectively crimp the stem onto the balloon catheter.
Advanced Cardiovascular Systems Inc.
Sim & Mcburney
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