Devices and systems for thrombus treatment
First Claim
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1. A method of treating a thrombus, comprising:
- inserting a catheter having a proximal end and a distal end into a patient and advancing the distal end of the catheter to a treatment site;
advancing a thrombus treatment device to the treatment site through a lumen of the catheter, the thrombus treatment device comprising;
(a) a body frame portion, wherein the body frame portion defines one or more interstices, (b) a tether portion that includes one or more tethers, said one or more tethers extending from the body frame portion to a collar that is coupled to a support wire, and (c) a filter portion that extends from the body frame portion;
positioning the thrombus treatment device within the lumen of the catheter at a position wherein the body frame portion is generally aligned with at least a portion of a thrombus at the treatment site, and proximally withdrawing the catheter;
providing a distally directed force to the support wire to advance the collar to a location substantially within a region interior of the body frame portion or substantially within a region interior of the filter portion; and
rotationally actuating the support wire, wherein the rotational actuation of the support wire causes a swiveling motion of the one or more tethers, the one or more tethers being adapted to macerate the thrombus.
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Abstract
A thrombus treatment device includes a support wire, a body frame portion that is disposed about an axis defined by the support wire, one or more tethers that each have a first end and a second end. Each of the one or more tethers is attached at its first end to the body frame portion, and at its second end to a collar that couples the second end of each of the multiple tethers to the support wire. When the collar is advanced to a position substantially within a region interior of the body frame portion, a rotational actuation of the support wire causes a swiveling motion of the one or more tethers. The swiveling motion of the tethers operates to macerate a thrombus.
305 Citations
20 Claims
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1. A method of treating a thrombus, comprising:
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inserting a catheter having a proximal end and a distal end into a patient and advancing the distal end of the catheter to a treatment site; advancing a thrombus treatment device to the treatment site through a lumen of the catheter, the thrombus treatment device comprising;
(a) a body frame portion, wherein the body frame portion defines one or more interstices, (b) a tether portion that includes one or more tethers, said one or more tethers extending from the body frame portion to a collar that is coupled to a support wire, and (c) a filter portion that extends from the body frame portion;positioning the thrombus treatment device within the lumen of the catheter at a position wherein the body frame portion is generally aligned with at least a portion of a thrombus at the treatment site, and proximally withdrawing the catheter; providing a distally directed force to the support wire to advance the collar to a location substantially within a region interior of the body frame portion or substantially within a region interior of the filter portion; and rotationally actuating the support wire, wherein the rotational actuation of the support wire causes a swiveling motion of the one or more tethers, the one or more tethers being adapted to macerate the thrombus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of treating a thrombus, comprising:
- inserting a catheter having a proximal end and a distal end into a patient and advancing the distal end of the catheter to a treatment site;
advancing a thrombus treatment device to the treatment site through a lumen of the catheter, the thrombus treatment device comprising;
(a) a body frame portion, (b) a tether portion that includes one or more tethers, said one or more tethers extending from the body frame portion to a collar that is coupled to a support wire, and (c) a filter portion that extends from the body frame portion;
positioning the thrombus treatment device within the lumen of the catheter at a position wherein the body frame portion is generally aligned with at least a portion of a thrombus at the treatment site, and proximally withdrawing the catheter;
providing a distally directed force to the support wire to advance the collar to a location substantially within a region interior of the body frame portion or substantially within a region interior of the filter portion; and
actuating the support wire to cause one or more of the tethers to macerate the thrombus, wherein the actuation of the support wire causes a portion of the one or more tethers to sweep through a range of motion relative to the body frame and the thrombus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- inserting a catheter having a proximal end and a distal end into a patient and advancing the distal end of the catheter to a treatment site;
Specification