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US 2019/0099194 A1Published application
Axial lengthening thrombus capture system
AssigneeKP Medcure, Inc.
InventorsThanh Van Nguyen, Duy Nguyen, Tung Hoang Ngo
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Abstract
Disclosed herein are systems and methods to remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.
Claims20
A clot capture system, comprising:
- a first, outer tubular shaft comprising a central lumen, the first outer tubular shaft comprising a proximal portion and a distal portion, the distal portion more radially expandable than the proximal portion;
- a second tubular shaft configured to be positioned within the central lumen of the first shaft,;
- a third tubular shaft configured to be positioned within a central lumen of the second shaft;
- a shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having a proximal-facing opening and a ring-shaped capture guide attached to a circumference of the proximal-facing opening, the capture guide operably attached to the second tubular shaft, the second end attached to an outer wall of the third tubular shaft,
- wherein the shape memory tubular body is compressed within the central lumen of the second tubular shaft in a first delivery configuration,
- wherein the shape memory tubular body is transformable to a second configuration in which the first end and the capture guide is radially expanded but the second end and a majority of the shape memory tubular body remains radially compressed within the central lumen of the second tubular shaft and the second end is positioned proximal to the first end and the shape memory tubular mesh body has a first expanded axial length,
- wherein the shape memory tubular body is transformable to a third configuration in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length, wherein a width of the shape memory tubular shaft along its second expanded axial length is substantially the same as a width of the shape memory tubular shaft along its first expanded axial length,
- wherein the first tubular shaft is configured to be reversibly coupled with respect to the second tubular shaft in the delivery configuration and axially movable with respect to the third tubular shaft in the second configuration.
5 more elements
Dependencies are inferred from the claim text.