Loading patent…
OwnerTim Corvi, Stephen Boyd +4inventors
InventorsTim Corvi, Stephen Boyd, Brett Follmer, John Stine, David Snow, Darren Doud
Estimating the term…
Catheters, kits, and methods are provided for removing material from a body lumen. The catheters and methods may be used in a variety of body lumens, including but not limited to coronary and other arteries. In general, the catheter has a cutting element that cuts material while the material is engaged by a material capture device on the catheter body. Preferably, the material capture device tensions the material during cutting, which reduces the amount of cutting force required. The material capture device typically follows a path that draws material into the catheter body. Preferably, but not necessarily, the material capture device may be arranged on the catheter body to advance along a path outwardly from the catheter body into the material and then inwardly towards the catheter body to tension the material. The cutting element on the catheter body moves between a first position and a second position to cut the material while in tension.
1-16. (canceled)
A catheter as in claim 1 wherein said material capture device comprises:
A catheter as in claim 1 wherein said material capture device comprises a penetrating member rotatably mounted on said catheter body and fixedly secured relative to said slidable cutting element;
A catheter as in claim 1 wherein said material capture device is configured to be deployed from an aperture in the side wall of the catheter body.
A catheter as in claim 1 wherein said cutting element includes a first cutting blade having at least one penetrating point.
A catheter as in claim 1 wherein said cutting element has a first cutting blade opposed to a second cutting blade for removing said material.
A catheter as in claim 1 wherein said cutting element comprises a tubular inner cutter slidably mounted within an outer cutter of the catheter body, said inner cutter coupled to a drive wire actuated by a user.
A catheter as in claim 1 wherein said material capture device extends an extension distance outward from the catheter body to engage material, said extension distance equal to the diameter of the catheter body.
A catheter as in claim 1 wherein said material capture device includes a barbed distal tip to retain material on the capture device.
A catheter as in claim 1 wherein said cutting element further comprises a material imaging device.
A catheter as in claim 1 wherein said material capture device comprises means for penetrating said material.
A catheter for removing material from the wall of a body lumen, said catheter comprising:
A catheter for removing material from a body lumen, said catheter comprising:
37-58. (canceled)
Dependencies are inferred from the claim text.