Medical Retrieval and Capture Device and Related Methods of Use
First Claim
Patent Images
1. A medical device comprising:
- an elongate member having a proximal end, a distal end, and a lumen extending therebetween;
a control member extending within the lumen of the elongate member, the control member having a distal end and a proximal end; and
an end-effector disposed at the distal end of the control member, the end-effector including an expandable structure having a proximal portion and a distal portion, the proximal and distal portions defining a substantially continuous loop, wherein at least a portion of the end-effector is configured to cut through tissue, wherein the distal portion has a first flexibility and the proximal portion has a second flexibility different than the first flexibility.
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Abstract
A medical device and related methods of use are provided for capture and removal of tissue from body lumens. The device includes an end-effector unit configured to capture tissue, having a distal end and a proximal end. The distal end and the proximal end form a substantially closed structure, and the distal end is more flexible than the proximal end. The device also includes a control member at the proximal end for holding and controlling the severing device.
38 Citations
20 Claims
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1. A medical device comprising:
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an elongate member having a proximal end, a distal end, and a lumen extending therebetween; a control member extending within the lumen of the elongate member, the control member having a distal end and a proximal end; and an end-effector disposed at the distal end of the control member, the end-effector including an expandable structure having a proximal portion and a distal portion, the proximal and distal portions defining a substantially continuous loop, wherein at least a portion of the end-effector is configured to cut through tissue, wherein the distal portion has a first flexibility and the proximal portion has a second flexibility different than the first flexibility. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical device, comprising:
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a sheath including a proximal end, a distal end, and a lumen; a control member extending within the lumen; and an end-effector disposed at a distal end of the control member, the end-effector including a plurality of overlying loops connected to one another by at least one link, each of the plurality of overlying loops configured to transition between compressed configuration and an expanded configuration, wherein the plurality of overlying loops are substantially parallel to one another in the expanded configuration. - View Dependent Claims (14)
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15. A method for manipulating tissue from within a body of a patient, the method comprising:
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introducing a medical device into the body, the medical device comprising; an elongate member having a proximal end, a distal end, and a lumen extending there between; a control member extending within the lumen of the elongate member, the control member having a distal end and a proximal end; an end-effector disposed at the distal end of the control member, the end-effector including an expandable structure having a proximal portion and a distal portion, the proximal and distal portions defining a substantially continuous loop, wherein at least a portion of the end-effector is configured to cut through tissue, wherein the distal portion has a first flexibility and the proximal portion has a second flexibility different than the first flexibility, and wherein the end-effector further includes a plurality of fingers coupled to the proximal portion of the expandable structure, each of the plurality of fingers including an elongate structure having a substantially flat cross-sectional shape; advancing the medical device to a desired location within the body; extending the end-effector out of the lumen; expanding the end-effector; and manipulating the tissue with the medical device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification