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US 12,295,613 B2Granted
Intraluminal tissue modifying systems and associated devices and methods
AssigneeInterVene, Inc.
InventorsFletcher T. Wilson, David Batten, Benjamin J. Clark, Michi E. Garrison
Life of this patent
Estimating the term…
Abstract
The present technology is directed generally to devices, systems, and methods for capturing and cutting fibrous and trabeculated structures (such as synechiae) in vessel lumens. In one embodiment, the present technology includes an intraluminal tissue modifying system configured to capture the fibrous structures, put the fibrous structures in tension, and controllably cut through the fibrous structures without applying appreciable additional force to the vessel wall. The system may include an expandable capture device and a cutting device.
Claims16
A device for modifying intraluminal tissue, the device comprising:
- an outer shaft comprising a proximal portion, a distal portion, a lumen extending between the proximal portion and the distal portion, and a plurality of capture members extending along a length of the distal portion, wherein each of the plurality of capture members includes a distal joint at a distal terminus of the corresponding capture member, a proximal joint at a proximal terminus of the corresponding capture member, and an intermediate joint positioned between the distal joint and the proximal joint;
- and
- an inner shaft positioned within the lumen, wherein a distal end region of the inner shaft is fixed to a distal end region of the outer shaft such that proximal translation of the inner shaft with respect to the outer shaft causes each of the plurality of capture members to actuate outwardly away from a longitudinal axis of the outer shaft, wherein, once actuated, each of the plurality of capture members comprises:
- a first portion between the proximal joint and the intermediate joint and having a first curved profile, wherein the first curved profile is concave away from the proximal portion of the outer shaft;
- and
- a second portion between the intermediate joint and the distal joint and having a second curved profile different from the first curved profile.
3 more elements
A device for modifying intraluminal tissue, the device comprising:
- a first shaft comprising a proximal portion, a distal portion, a first lumen extending between the proximal portion and the distal portion, and a plurality of capture members extending along a length of the distal portion, wherein each of the plurality of capture members includes a distal joint, a proximal joint proximal to the distal joint, an intermediate joint positioned between the distal joint and the proximal joint, and a slot extending along at least a portion of the corresponding capture member;
- a second shaft positioned within the first lumen, the second shaft comprising a second lumen and a distal end region coupled to the distal portion of the first shaft, wherein proximal translation of the second shaft with respect to the first shaft moves the distal joint of each of the plurality of capture members proximally to force each of the plurality of capture members to bend outwardly away from a longitudinal axis of the first shaft;
- and
- a cutting device slidably positioned within the second lumen, the cutting device comprising a plurality of cutting elements and a plurality of support arms, wherein:
- the cutting device is actuatable between a collapsed position and a deployed position,
- in the deployed position, each of the plurality of cutting elements extends away from the longitudinal axis of the first shaft and is positioned to move through the slot of a corresponding one of the plurality of capture members when the cutting device slides within the second lumen,
- each of the plurality of support arms includes a first end rotatably coupled to a cutting device shaft and a second end opposite the first end, and
- each of the plurality of cutting elements has a third end rotatably coupled to the cutting device shaft and a fourth end rotatably coupled to the second end of a corresponding one of the plurality of support arms.
5 more elements
A device for modifying intraluminal tissue, the device comprising:
- a first shaft comprising a proximal portion, a distal portion, a first lumen extending between the proximal portion and the distal portion, and a plurality of capture members extending along a length of the distal portion, wherein each of the plurality of capture members includes a distal joint, a proximal joint proximal to the distal joint, an intermediate joint positioned between the distal joint and the proximal joint, and a slot extending along at least a portion of the corresponding capture member;
- a second shaft positioned within the first lumen, the second shaft comprising a second lumen and a distal end region coupled to the distal portion of the first shaft, wherein proximal translation of the second shaft with respect to the first shaft moves the distal joint of each of the plurality of capture members proximally to force each of the plurality of capture members to bend outwardly away from a longitudinal axis of the first shaft, wherein the proximal translation of the second shaft with respect to the first shaft moves the distal joint to a position proximal to the proximal portion of the first shaft with respect to the intermediate joint;
- and
- a cutting device slidably positioned within the second lumen, the cutting device having a plurality of cutting elements, wherein the cutting device is actuatable between a collapsed position and a deployed position, and wherein, in the deployed position, each of the plurality of cutting elements extends away from the longitudinal axis of the first shaft and is positioned to move through the slot of a corresponding one of the plurality of capture members when the cutting device slides within the second lumen.
1 more element
A device for modifying intraluminal tissue, the device comprising:
- a first shaft comprising a proximal portion, a distal portion, a first lumen extending between the proximal portion and the distal portion, and a plurality of capture members extending along a length of the distal portion, wherein each of the plurality of capture members includes a distal joint, a proximal joint proximal to the distal joint, an intermediate joint positioned between the distal joint and the proximal joint, and a slot extending along at least a portion of the corresponding capture member;
- a second shaft positioned within the first lumen, the second shaft comprising a second lumen and a distal end region coupled to the distal portion of the first shaft, wherein proximal translation of the second shaft with respect to the first shaft moves the distal joint of each of the plurality of capture members proximally to force each of the plurality of capture members to bend outwardly away from a longitudinal axis of the first shaft, wherein the proximal translation of the second shaft with respect to the first shaft moves the intermediate joint to a position proximal to the proximal portion of the first shaft with respect to the proximal joint;
- and
- a cutting device slidably positioned within the second lumen, the cutting device having a plurality of cutting elements, wherein the cutting device is actuatable between a collapsed position and a deployed position, and wherein, in the deployed position, each of the plurality of cutting elements extends away from the longitudinal axis of the first shaft and is positioned to move through the slot of a corresponding one of the plurality of capture members when the cutting device slides within the second lumen.
1 more element
A device for modifying intraluminal tissue, the device comprising:
- an outer shaft having a proximal portion and a distal portion, the outer shaft comprising:
- a lumen extending between the proximal portion and the distal portion;
- and
- a plurality of capture members extending along a length of the distal portion, wherein each of the plurality of capture members includes a distal joint coupled to the outer shaft, a proximal joint coupled to the outer shaft, and an intermediate joint positioned between the distal joint and the proximal joint;
- and
- an inner shaft slidably positioned within the lumen of the outer shaft, wherein the inner shaft is coupled to the distal portion of the outer shaft distal to the distal joint, wherein movement of the inner shaft with respect to the outer shaft causes the plurality of capture members to actuate between a collapsed state and a deployed state, and wherein, in the deployed state, each of the plurality of capture members includes:
- a first curved segment extending between the distal joint and the intermediate joint having a first profile, wherein the first curved segment faces distally to engage tissue distal to the plurality of capture members with respect to the proximal portion of the outer shaft;
- and
- a second curved segment extending between the intermediate joint and the proximal joint having a second profile different from the first profile.
6 more elements
Dependencies are inferred from the claim text.