Compliant framework and methods of use
First Claim
1. A method for treating a patient by open surgery, comprising the steps of:
- inserting a catheter into the patient through a peripheral artery, the catheter comprising an elongate member having a plurality of flexible lines and a plurality of struts arranged circumferentially around a distal region of the elongate member, each strut having an end that pivots away from the instrument, each flexible line having a proximal end and a distal end that passes slideably through and beyond the end of the strut that carries it and is attached to the strut immediately adjacent the strut that carries it;
advancing the catheter to a position downstream of a region of interest within an aorta;
pushing the flexible lines distally to expand the struts radially outward;
performing an open surgical procedure on the aorta;
pulling the flexible lines proximally to contract the struts radially inward; and
removing the catheter from the patient.
3 Assignments
0 Petitions
Accused Products
Abstract
An expansion mechanism that includes an elongate instrument and a plurality of struts arranged around the elongate instrument provides radial expansion of a medical device. Each strut has a first end pivotally connected to the elongate instrument and a second strut that expands radially outward. Each strut further carries a flexible line which has a proximal end and a distal end. The distal end of each line passes beyond the second end of the strut which carries it and is attached to the strut immediately adjacent the strut which carries it. Methods of using such an expansion mechanism are also disclosed, particularly to provide deployment of medical devices within a patient'"'"'s blood vascular system.
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Citations
20 Claims
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1. A method for treating a patient by open surgery, comprising the steps of:
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inserting a catheter into the patient through a peripheral artery, the catheter comprising an elongate member having a plurality of flexible lines and a plurality of struts arranged circumferentially around a distal region of the elongate member, each strut having an end that pivots away from the instrument, each flexible line having a proximal end and a distal end that passes slideably through and beyond the end of the strut that carries it and is attached to the strut immediately adjacent the strut that carries it; advancing the catheter to a position downstream of a region of interest within an aorta; pushing the flexible lines distally to expand the struts radially outward; performing an open surgical procedure on the aorta; pulling the flexible lines proximally to contract the struts radially inward; and removing the catheter from the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for treating a patient by open surgery, comprising the steps of:
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inserting a catheter into the patient through a peripheral artery, the catheter comprising an elongate member having a plurality of flexible lines and a plurality of struts arranged circumferentially around a distal region of the elongate member, each strut having an end that pivots away from the instrument, each flexible line having a proximal end and a distal end that passes slideably through and beyond the end of the strut that carries it and is attached to the strut immediately adjacent the strut that carries it, the catheter further comprising a filter mesh disposed over the struts and expandable by operation of the flexible lines; advancing the catheter to a position downstream of a region of interest within an aorta; pushing the flexible lines distally to expand the struts radially outward; performing an open surgical procedure to access the aorta; blocking the aorta upstream of the expanded filter; unblocking the aorta upstream of the expanded filter; pulling the flexible lines proximally to contract the struts radially inward; and removing the catheter from the patient. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification