Method of treating atherosclerotic occlusive disease
First Claim
1. A method of treating a blood vessel comprising:
- advancing a delivery catheter loaded with multiple independently deployable self-expanding tacks to a treatment area including a dissection in the blood vessel surface;
independently deploying two or more self-expanding tacks of the multiple independently deployable self-expanding tacks from the delivery catheter at the discretion of an operator to treat the dissection in the blood vessel surface, such that a vessel coverage area (C) of the deployed two or more self-expanding tacks divided by a Total Vessel Surface Area (TVS) of the treatment area has a ratio (C/TVS) of less than or equal to 60%, wherein the vessel coverage area is based on summation of an axial length measured from a distal-most end to a proximal-most end for each of the deployed two or more self-expanding tacks, and the Total Vessel Surface Area is based on a distance from a distal-most end to a proximal-most end of the treatment area.
3 Assignments
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Accused Products
Abstract
A tack device for holding plaque against blood vessel walls in treating atherosclerotic occlusive disease can be formed as a thin, annular band of durable, flexible material. The tack device may also have a plurality of barbs or anchoring points on its outer annular periphery. The annular band can have a length in the axial direction of the blood vessel walls that is about equal to or less than its diameter as installed in the blood vessel. A preferred method is to perform angioplasty with a drug eluting balloon as a first step, and if there is any dissection to the blood vessel caused by the balloon angioplasty, one or more tack devices may be installed to tack down the dissected area of the blood vessel surface, in order to avoid the need to install a stent and thereby maintain a ‘stent-free’ environment.
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Citations
20 Claims
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1. A method of treating a blood vessel comprising:
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advancing a delivery catheter loaded with multiple independently deployable self-expanding tacks to a treatment area including a dissection in the blood vessel surface; independently deploying two or more self-expanding tacks of the multiple independently deployable self-expanding tacks from the delivery catheter at the discretion of an operator to treat the dissection in the blood vessel surface, such that a vessel coverage area (C) of the deployed two or more self-expanding tacks divided by a Total Vessel Surface Area (TVS) of the treatment area has a ratio (C/TVS) of less than or equal to 60%, wherein the vessel coverage area is based on summation of an axial length measured from a distal-most end to a proximal-most end for each of the deployed two or more self-expanding tacks, and the Total Vessel Surface Area is based on a distance from a distal-most end to a proximal-most end of the treatment area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of treating a blood vessel comprising:
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advancing a delivery catheter including multiple independently deployable implants to a treatment area defined by a balloon treatment region including a dissection in the blood vessel surface due to the balloon treatment; and deploying two or more implants of the multiple independently deployable implants from the delivery catheter to treat the dissection in the blood vessel surface at the treatment area, such that a vessel coverage area (C) of the deployed two or more implants divided by a Total Vessel Surface Area (TVS) of the treatment area has a ratio (C/TVS) of less than or equal to 60%, wherein the vessel coverage area is based on summation of an axial length measured from a distal-most end to a proximal-most end for each of the deployed two or more implants, and the Total Vessel Surface Area is based on a distance from a distal-most end to a proximal-most end of the treatment area. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification