Vascular lumen debulking catheters and methods
First Claim
1. A composition, the composition comprising vascular tissue that has been excised in vivo from a subject, wherein the vascular tissue comprises at least one continuous strand of tissue that is removed from an interior wall of a vascular lumen in a living human body, wherein the continuous strand of tissue retains the in vivo structure of the tissue prior to its removal and is at least 2 cm in length along an axis of the vascular lumen.
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Accused Products
Abstract
A debulking catheter comprising a tissue debulking assembly for removing a continuous strand of material from a body lumen. Catheters of the present invention generally include a catheter body having proximal and distal portions and a tissue debulking assembly disposed at least partially within the distal portion. The tissue debulking assembly is radially movable to expose at least a portion of the assembly through a window on the catheter body. The catheter is advanced transluminally through the body lumen to contact material in the body lumen and remove a plane of continuous material that has a length that is typically longer than a length of the window on the catheter. The continuous material may be directed into a collection chamber. Thereafter, the material may be removed from the collection chamber and preserved or tested.
303 Citations
50 Claims
- 1. A composition, the composition comprising vascular tissue that has been excised in vivo from a subject, wherein the vascular tissue comprises at least one continuous strand of tissue that is removed from an interior wall of a vascular lumen in a living human body, wherein the continuous strand of tissue retains the in vivo structure of the tissue prior to its removal and is at least 2 cm in length along an axis of the vascular lumen.
- 16. A composition comprising vascular tissue that has been excised in vivo from a subject, wherein the vascular tissue comprises at least one continuous strand of tissue that is removed from an interior wall of a vascular lumen in a living human body, wherein the continuous strand of tissue retains the structure of the tissue prior to its removal, is at least 2 cm in length along an axis of the vascular lumen, and has a depth of at least 0.1 mm, wherein depth is a dimension which is radial to an axis of the lumen.
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30. A composition of excised vascular tissue comprising at least one continuous strand of tissue that is removed from a vascular lumen in a living human body, wherein the tissue is removed by
providing a catheter; -
inserting the catheter into an unhealthy region of a vascular lumen of the living human body; advancing the catheter within the vascular lumen in such a manner so as to excise vascular tissue there from to produce excised vascular tissue; and preserving the excised vascular tissue; wherein the excised vascular tissue comprises a continuous strand of tissue that retains the in vivo structure of the tissue prior to its removal from the living human body, has a length of at least 2 cm along the axis of vascular lumen, and further comprises both plaque and diseased tissue. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
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- 40. A composition, the composition comprising vascular tissue that has been excised in vivo from a subject, wherein the vascular tissue has a first depth and being debulked from an interior wall of a vascular lumen having a second depth, wherein the depth of the excised vascular tissue is less than the depth of the wall of the vascular lumen, and wherein the vascular tissue comprises at least one continuous strand of tissue having a length of at least 2 cm along the axis of the vascular lumen.
- 45. A library comprising a plurality of systematically archived samples, wherein the samples comprise vascular tissue that has been excised in vivo from a subject, each sample containing at least one continuous strand of tissue that is removed from a vascular lumen in a living human body, wherein the continuous strand retains the in vivo structure of the tissue prior to its removal and is at least 2 cm in length along an axis of the vascular lumen.
Specification