Interventional device having an integrated embolic filter and associated methods
AssigneeContego Medical, Inc.
InventorsRavish Sachar, Udayan Patel
Life of this patent
Estimating the term…
Abstract
A percutaneous transluminal device, comprising an elongated catheter, an interventional device operably coupled to the proximal end of the catheter, a filter operably coupled to the distal end of the catheter, the filter movable between a collapsed and deployed position 218, and an actuator wire for deploying the collapsing the filter. The filter including a filter chassis comprising a movable collar a fixed collar and a tubular braided scaffolding coupled between the movable collar and the fixed collar. Each wire of the braided scaffolding moving independently with respect to the other wires between the movable collar and the fixed collar as the filter moves between the collapsed position and the deployed position.
Claims33
A percutaneous, transluminal angioplasty device comprising:
- an elongated catheter having a longitudinal axis, a proximal end portion, a distal end portion and an outer side wall;
- an interventional device operably coupled to the proximal end portion of the catheter;
- a filter operably coupled to the distal end portion of the catheter, the filter movable between a collapsed position and a deployed position, the filter comprising:
- a filter chassis comprising:
- a movable collar slidably coupled to the catheter,
- a fixed collar spaced from the movable collar relative to the longitudinal axis of the catheter, the fixed collar immovably coupled to the catheter,
- a tubular braided scaffolding having a first end coupled to the movable collar and an opposed second end coupled to the fixed collar, and
- a filter membrane coupled to the tubular braided scaffolding and extending to at least the distal end of the filter chassis;
- and
- an actuator wire, at least a portion of the actuator wire extending within the catheter, a distal end of the actuator wire exiting the catheter through a port provided on an outer side wall of the catheter, a distal end of the actuator wire being coupled to the movable collar;
- a handle coupled to the proximal end portion of the catheter and operably coupled to a proximal end of the actuator wire at a screw, and an actuator coupled to the screw, the activation of the actuator effecting axial displacement of the screw, and, correspondingly, the actuator wire, relative to the handle longitudinal axis, the handle comprising
- a distal portion;
- a proximal portion including a distal stop, a proximal stop, and a plurality of thread-receiving members for engaging the at least one thread of the screw positioned between the distal and proximal stops relative to a longitudinal axis of the handle such that distal stop limits distal axial movement of the screw and the proximal stop limits proximal axial movement of the screw;
- and
- a bridge portion extending between and connected to the proximal portion and the distal portion,
- wherein rotation of the screw causes the actuator wire to move along the longitudinal axis of the catheter, where movement of the actuator wire causes the filter to move between the collapsed position and the deployed position by exerting a force on and moving the movable collar relative to the fixed collar along the longitudinal axis of the catheter.
Dependencies are inferred from the claim text.