Patent ID: 9456843
Filing Date: 2016-10-04
CPC Classification: A61B

Claim Text:
1. A tissue-removing catheter for removing tissue from a body lumen having a longitudinal axis, the tissue-removing catheter comprising: a catheter body configured for insertion in the body lumen, the catheter having a proximal end, a distal end, and a longitudinal axis extending between the proximal and distal ends, wherein at least a first longitudinal body portion of the catheter body is rotatable about a rotational axis extending along the length of the catheter body; a tissue-removing element coupled to the first longitudinal body portion of the catheter body, wherein the tissue-removing element is configured to rotate with the first longitudinal body portion about the rotational axis; and an angular-displacement sensor coupled to the first longitudinal portion of the catheter body, wherein the angular-displacement sensor is configured to rotate with the first longitudinal body portion and the tissue-removing element about the rotational axis and configured to detect an angular displacement of at least said first longitudinal body portion of the catheter body and said tissue-removing element relative to the rotational axis when the first longitudinal body portion is rotated about the rotational axis; a control circuit connectable to the angular-displacement sensor, wherein the control circuit is configured to: a control unit connectable to the catheter body, the control unit comprising the control circuit, and a display electrically connected to the control circuit, wherein the control circuit is configured to display the computed angular displacement of the first longitudinal body portion as an angle on the display.