Angioplasty device and method of making same
First Claim
1. An apparatus for insertion into a vessel-like structure, the apparatus comprising:
- a catheter for insertion into the vessel-like structure, the catheter having a catheter wall and a lumen extending longitudinally theretbrough;
a moveable member disposed within the lumen;
at least one helically twisted flexible strut fixedly connected to the catheter wall and to the moveable member;
a membrane operably connected to the at least one flexible strut to form a trap, wherein relative motion between the catheter wall and the moveable member actuates the trap between a helically twisted contracted position and a helically twisted expanded position, wherein the relative motion comprises relative rotational motion;
at least one suction aperture situated within the boundary defined by the at least one helically twisted flexible strut; and
a suction lumen extending longitudinally through the catheter, the suction lumen being in operable communication with the at least one suction aperture.
4 Assignments
0 Petitions
Accused Products
Abstract
An angioplasty device and particle trap for use in removal of a particle from a small diameter vessel or vessel-like structure is disclosed. One embodiment includes a catheter for insertion into a vessel-like structure, the catheter having a catheter wall and a movable member, a trap operably connected to the catheter wall and to the movable member, wherein relative motion between the catheter wall and the movable member actuates the trap. In one embodiment, the expanded trap is formed from struts in a spiral-shaped configuration. In one embodiment, the contracted trap forms a waist to creates a pinch-point to trap particles. In one embodiment, the contracted trap forms a cocoon-like structure to further trap particles. In one embodiment, the angioplasty device includes a handle to actuate the trap from a contracted position to an expanded position and return to a contracted position. The handle provides rotational or longitudinal or both types of movement to actuate the trap.
80 Citations
20 Claims
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1. An apparatus for insertion into a vessel-like structure, the apparatus comprising:
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a catheter for insertion into the vessel-like structure, the catheter having a catheter wall and a lumen extending longitudinally theretbrough; a moveable member disposed within the lumen; at least one helically twisted flexible strut fixedly connected to the catheter wall and to the moveable member; a membrane operably connected to the at least one flexible strut to form a trap, wherein relative motion between the catheter wall and the moveable member actuates the trap between a helically twisted contracted position and a helically twisted expanded position, wherein the relative motion comprises relative rotational motion; at least one suction aperture situated within the boundary defined by the at least one helically twisted flexible strut; and a suction lumen extending longitudinally through the catheter, the suction lumen being in operable communication with the at least one suction aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for insertion into a vessel-like structure, the apparatus comprising:
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a catheter for insertion into the vessel-like structure, the catheter having a catheter wall and a lumen extending longitudinally therethrough; a moveable member disposed within the lumen; at least one helically twisted flexible strut fixedly connected to the catheter wall and to the moveable member; a membrane operably connected to the at least one flexible strut to form a trap, wherein relative motion between the catheter wall and the moveable member actuates the trap between a helically twisted contracted position and a helically twisted expanded position, wherein the relative motion comprises relative rotational motion.motion; a balloon operably connected to the catheter and adapted to compress an obstruction; at least one suction aperture situated between the balloon and a distal end of the trap; and a suction lumen extending longitudinally through the catheter, the suction lumen in operable communication with the at least one suction aperture.
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20. An apparatus for insertion into a vessel-like structure, the apparatus comprising:
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a catheter for insertion into the vessel-like structure, the catheter having a catheter wall and a lumen extending longitudinally therethrough; a moveable member disposed within the lumen; at least one helically twisted flexible strut fixedly connected to the catheter wall and to the moveable member; and a membrane operably connected to the at least one flexible strut to form a trap, wherein relative motion between the catheter wall and the moveable member actuates the trap between a helically twisted contracted position and a helically twisted expanded position, wherein the relative motion comprises relative rotational motion; a balloon operably connected to the catheter and adapted to compress an obstruction; an inflation/deflation lumen defined by the catheter and fluidly connected to the balloon; at least one suction aperture defined by the cathether, the at least one suction aperture being situated between the balloon and the distal end of the trap; and a suction lumen extending longitudinally through the catheter, the suction lumen in operable communication with the at least one suction aperture.
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Specification