Devices and methods for removing occlusions in vessels
First Claim
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1. A device for removing occlusions from a vessel, comprisinga housing element having a distal end, a proximal end and a longitudinal axis, wherein one or more lumens are disposed along the longitudinal axis;
- an embolism collector element;
a cutting element attached to the distal end of the drive shaft, wherein said cutting element has a surface that is not smooth;
a casing disposed around the cutting element; and
an inflatable balloon.
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Abstract
Occlusion-removing devices that include an inflatable balloon for arresting blood flow and a occlusion-shearing element are provided. Also provided are methods of making and using these devices.
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Citations
19 Claims
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1. A device for removing occlusions from a vessel, comprising
a housing element having a distal end, a proximal end and a longitudinal axis, wherein one or more lumens are disposed along the longitudinal axis; -
an embolism collector element;
a cutting element attached to the distal end of the drive shaft, wherein said cutting element has a surface that is not smooth;
a casing disposed around the cutting element; and
an inflatable balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
accessing a selected site with the device according to claim 1; inflating the balloon to the desired dimensions;
shearing at least a portion of the embolism with the cutting element; and
removing the sheared fragments of the embolism with the collection element.
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17. The method of claim 16, wherein the shearing comprises:
drawing a portion of the embolism into the housing and manipulating the cutting element to shear the embolism against the interior wall of the housing.
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18. The method of claim 16, wherein the device further comprises a casing disposed around the cutting element.
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19. The method of claim 18, wherein the shearing comprises extending the cutting element and surrounding casing from the distal end of the housing and manipulating the cutting element against the casing.
Specification