Device for Crossing Occlusions and Method of Use Thereof
First Claim
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1. A method of treating a occlusion within a body lumen, comprising:
- inserting a device into the body lumen, wherein the device comprises;
a catheter body and an incremental positioning mechanism positioned proximally of the catheter body, wherein a lumen extends from the proximal end of the incremental positioning mechanism to a distal end of the catheter body, anda wire guide positioned within the lumen and extending from the proximal end of the catheter body to the distal end of the incremental positioning mechanism, wherein the incremental positioning mechanism allows for adjustment of the axial position of the wire guide relative to the distal end of the catheter body,adjusting of the axial position of the wire guide relative to the distal end of the catheter body to position a distal end of the wire guide beyond the distal end of the catheter body,positioning the distal end of the wire guide near the occlusion within the body vessel,advancing the device distally to contact the distal end of the wire guide with the occlusion,moving the distal end of the wire guide proximally with the incremental positioning mechanism to position the distal end of the wire guide closer to the distal end of the catheter body, andadvancing the device distally, whereby the distal end of the wire guide crosses the occlusion.
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Abstract
The present invention generally relates to a medical device and specifically to a catheter and wire guide for crossing an occlusion in a body lumen and a method of use thereof. In one embodiment, the catheter includes an incremental positioning mechanism positioned distally of the catheter body. In another embodiment, a lumen containing the wire guide extends through the incremental positioning mechanism and the catheter body. The incremental positioning mechanism allows for adjustment of the axial position of the wire guide relative to the distal end of the catheter body.
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Citations
20 Claims
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1. A method of treating a occlusion within a body lumen, comprising:
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inserting a device into the body lumen, wherein the device comprises; a catheter body and an incremental positioning mechanism positioned proximally of the catheter body, wherein a lumen extends from the proximal end of the incremental positioning mechanism to a distal end of the catheter body, and a wire guide positioned within the lumen and extending from the proximal end of the catheter body to the distal end of the incremental positioning mechanism, wherein the incremental positioning mechanism allows for adjustment of the axial position of the wire guide relative to the distal end of the catheter body, adjusting of the axial position of the wire guide relative to the distal end of the catheter body to position a distal end of the wire guide beyond the distal end of the catheter body, positioning the distal end of the wire guide near the occlusion within the body vessel, advancing the device distally to contact the distal end of the wire guide with the occlusion, moving the distal end of the wire guide proximally with the incremental positioning mechanism to position the distal end of the wire guide closer to the distal end of the catheter body, and advancing the device distally, whereby the distal end of the wire guide crosses the occlusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for treating an occlusion within a body vessel, the device comprising:
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a catheter body, a first handle element attached proximally of the catheter body, the first handle element having a threaded proximal portion, and a second handle element attached proximally to the first handler element, the second handle element having a threaded distal portion, wherein the threaded proximal portion of the first handle element engages the threaded distal portion of the second handle element, wherein a lumen extends through the catheter body from a distal end of the catheter body and through the first handle element and the second handle element. - View Dependent Claims (11, 12, 13)
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14. A device for treating an occlusion within a body vessel, the device comprising:
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a catheter body, a first handle element attached proximally of the catheter body, the first handle element having a threaded proximal portion, a second handle element attached proximally to the first handler element, the second handle element having a threaded distal portion, wherein the threaded proximal portion of the first handle element engages the threaded distal portion of the second handle element, and wherein a lumen extends through the catheter body from a distal end of the catheter body and through the first handle element and the second handle element, and a wire guide extending within the lumen from the distal end of the catheter body through the first handle element and the second handle element to a proximal end of the second handle element. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification