Material removal device having improved material capture efficiency and methods of use
First Claim
Patent Images
1. An atherectomy catheter, comprising:
- a body having an opening;
a rotatable shaft coupled to the body;
a cutting element coupled to the rotatable shaft, the cutting element having a cutting edge;
a tissue collection chamber coupled to the body and positioned distal to the cutting element; and
a part for propelling fluid distally in the tissue collection chamber, the part including a drive shaft having a proximal end and a distal portion, and a propeller attached to the distal portion of the drive shaft, wherein the proximal end of the drive shaft is attached to the cutting element.
5 Assignments
0 Petitions
Accused Products
Abstract
An improved atherectomy catheter includes a part for propelling fluid distally in a tissue collection chamber. The part includes a drive shaft having a proximal end and a distal portion, and a propeller attached to the distal portion of the drive shaft.
619 Citations
15 Claims
-
1. An atherectomy catheter, comprising:
-
a body having an opening; a rotatable shaft coupled to the body; a cutting element coupled to the rotatable shaft, the cutting element having a cutting edge; a tissue collection chamber coupled to the body and positioned distal to the cutting element; and a part for propelling fluid distally in the tissue collection chamber, the part including a drive shaft having a proximal end and a distal portion, and a propeller attached to the distal portion of the drive shaft, wherein the proximal end of the drive shaft is attached to the cutting element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of removing material from a body lumen, the method comprising:
-
providing an atherectomy catheter, the atherectomy catheter comprising; a body having an opening; a rotatable shaft coupled to the body; a cutting element coupled to the rotatable shaft, the cutting element having a cutting edge; a tissue collection chamber coupled to the body and positioned distal to the cutting element; and a part for propelling fluid distally in the tissue collection chamber, the part including a drive shaft having a proximal end and a distal portion, and a propeller attached to the distal portion of the drive shaft, wherein the proximal end of the drive shaft is attached to the cutting element; placing the catheter in the body lumen; and moving the catheter in the body lumen to contact the cutting element with the material in the body lumen. - View Dependent Claims (13, 14, 15)
-
Specification