Devices, systems, and methods for removing stenotic lesions from vessels
First Claim
1. A method for removing a stenotic lesion of a vessel, the method comprising the steps of:
- (a) measuring a first luminal size parameter at a first location within a vessel lumen;
(b) measuring a second luminal size parameter at a second location within the vessel lumen;
(c) determining a preferred second luminal size parameter based upon the first luminal size parameter and the second luminal size parameter;
(d) positioning a treatment device at the second location;
(e) operating the treatment device to increase the second luminal size parameter;
(f) measuring a then-current luminal size parameter at the second location;
(g) comparing the then-current luminal size parameter to the preferred second luminal size parameter; and
(h) if the then-current luminal size parameter does not equal the preferred second luminal size parameter, repeating steps (e), (f), and (g) until the then-current luminal size parameter equals the preferred second luminal size parameter,wherein the treatment device comprises at least one sizing portion and at least one treatment portion, the at least one treatment portion operable to remove at least part of a stenotic lesion and wherein the at least one sizing portion comprises;
a first excitation electrode and a second excitation electrode positioned along the treatment device; and
a first detection electrode and a second detection electrode positioned along the treatment device in between the first excitation electrode and the second excitation electrode.
3 Assignments
0 Petitions
Accused Products
Abstract
The present application provides various devices, systems, and methods for removing stenotic lesions from vessels. In at least one embodiment of an exemplary device, the device comprises at least one sizing portion and at least one treatment portion. Such a device may be useful to, for example, remove a stenotic lesion from a vessel by positioning the device within a vessel lumen, operating the sizing portion to obtain luminal size parameter data, operating the treatment portion at a location within the vessel lumen at or near a stenotic lesion, and ceasing operation of the treatment portion when the luminal size parameter data indicates a preferred luminal size parameter.
162 Citations
54 Claims
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1. A method for removing a stenotic lesion of a vessel, the method comprising the steps of:
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(a) measuring a first luminal size parameter at a first location within a vessel lumen; (b) measuring a second luminal size parameter at a second location within the vessel lumen; (c) determining a preferred second luminal size parameter based upon the first luminal size parameter and the second luminal size parameter; (d) positioning a treatment device at the second location; (e) operating the treatment device to increase the second luminal size parameter; (f) measuring a then-current luminal size parameter at the second location; (g) comparing the then-current luminal size parameter to the preferred second luminal size parameter; and (h) if the then-current luminal size parameter does not equal the preferred second luminal size parameter, repeating steps (e), (f), and (g) until the then-current luminal size parameter equals the preferred second luminal size parameter, wherein the treatment device comprises at least one sizing portion and at least one treatment portion, the at least one treatment portion operable to remove at least part of a stenotic lesion and wherein the at least one sizing portion comprises; a first excitation electrode and a second excitation electrode positioned along the treatment device; and a first detection electrode and a second detection electrode positioned along the treatment device in between the first excitation electrode and the second excitation electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for removing a stenotic lesion of a vessel, the system comprising:
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a treatment device, the treatment device comprising at least one treatment portion operable to remove at least part of a stenotic lesion; and a sizing device, the sizing device comprising electrodes operable to measure a first luminal size parameter when the sizing device is positioned at a first location, and wherein the sizing device is further operable to measure a second luminal size parameter when the sizing device is positioned at a second location, wherein the treatment device comprises a catheter, and wherein the sizing device comprises a wire selected from the group consisting of a guide wire, a pressure wire, and a flow wire. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for removing a stenotic lesion of a vessel, the method comprising the steps of:
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positioning a device within a vessel lumen, the device comprising at least one sizing portion and at least one treatment portion; operating the at least one sizing portion of the device to obtain luminal size parameter data; operating the at least one treatment portion at a location within the vessel lumen at a stenotic lesion, whereby operation of the at least one treatment portion is based upon the luminal size parameter data, whereby operation of the at least one treatment portion increases the luminal size parameter data value; ceasing operation of the at least one treatment portion when the luminal size parameter data indicates a preferred luminal size parameter, wherein the device further comprises a data acquisition and processing system operably coupled to the device, the data acquisition and processing system operable to receive conductance data from the at least one sizing portion of the device, the data acquisition and processing system further operable to calculate at least one luminal parameter based upon said conductance data. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A device for removing a stenotic lesion of a vessel, the device comprising:
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at least one sizing portion; and at least one treatment portion operable to remove at least part of a stenotic lesion, wherein the at least one treatment portion comprises a balloon, and wherein the at least one sizing portion comprises at least one pressure sensor. - View Dependent Claims (50, 51, 52, 53, 54)
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Specification