Embolic protection device having expandable trap
OwnerHarold D. Kletschkainventor
Life of this patent
Estimating the term…
Abstract
An embolic protection device for use in medical, veterinary, non-medical or industrial applications where removal of an obstruction from a small diameter vessel or vessel-like structure could produce particles, which, if allowed to remain in the vessel, could cause undesirable complications and results. One embodiment comprises a catheter for insertion into a vessel and a trap operably connected to the catheter and to a rotatable member. Rotating the rotatable member relative to the catheter actuates the trap. One embodiment comprises a rotatable member that actuates a flexible strut between an arcuately expanded position and a helically twisted position, and a membrane operably connected to the flexible strut.
Claims19
A device for capturing particles flowing through a vessel or vessel like-structure, the device comprising:
- a catheter for insertion into the vessel, the catheter having a suction lumen;
- a plurality of flexible struts having a first end connected to the catheter and a second end connected to a guidewire, the struts having a contracted position wherein the struts are helically twisted around the catheter and an expanded position wherein the struts extend arcuately outward from the catheter;
- a membrane connected to the plurality of flexible struts to define a trap;
- and
- an actuation mechanism coupling the guidewire to the catheter for causing a combined rotation and longitudinal motion of the guidewire wherein the suction lumen has a distal aperture and at least one suction aperture located on a peripheral wall thereof, the apertures are being located within the trap to allow removal of material therein.
A device for capturing particles flowing through a vessel, the device comprising:
- a catheter for insertion into the vessel, the catheter having a longitudinal lumen therein;
- a plurality of flexible struts having a first end connected to the catheter and a second end connected to a moveable member, the struts having a contracted position wherein the struts are helically twisted around the catheter and an expanded position wherein the struts extend arcuately outward from the catheter;
- and
- a membrane connected to the plurality of flexible struts to define a trap;
- wherein, in the contracted position, a longitudinal distance between the first and second ends of the struts is greater than the longitudinal distance in the expanded position wherein the longitudinal lumen has a distal aperture and at least one suction aperture located on a peripheral wall thereof, the apertures are being located within the trap to allow removal of material therein.
Dependencies are inferred from the claim text.