Aspiration control valve
AssigneeNeuravi Limited
InventorsBrendan CASEY, David VALE, Michael GILVARRY
Life of this patent
Estimating the term…
Abstract
An aspiration control device can have an aspiration control valve and a switch, button, slider, trigger, grip, lever, rotating wheel, rotating valve, handle or other interface for resizing the aspiration control valve. The aspiration control interface can be conveniently positioned and configured to be manipulated while simultaneously stabilizing a catheter and/or retracting an elongated member. The aspiration control device can be integrated with a hemostasis valve, integrated with a wire gripping device, and/or attached to an inlet, outlet, hose, pump, or syringe in series with an aspiration flow path.
Claims20
A system comprising:
- a hemostasis valve comprising an entrance to receive a catheter;
- a control valve in communication with the hemostasis valve, the control valve comprising an opening movable between a first dimension sized to limit flow of aspirated blood from the catheter at a first flow rate to a second dimension sized to limit the flow of aspirated blood from the catheter at a second flow rate;
- and
- a control interface in communication with the control valve, the control interface movable to move the opening of the control valve from the first dimension to the second dimension.
An apparatus comprising:
- a distal port sized to receive a catheter;
- a proximal port sized to allow passage of an inner elongated member, the inner elongated member disposed within a lumen of the catheter;
- a first side port;
- a first flow path extending from the lumen of the catheter to the first side port;
- a control valve in communication with the lumen of the catheter and the first side port, the control valve movable to control blood flow through the first flow path;
- and
- a control interface in communication with the control valve, the control interface comprising at least two positions, the at least two positions corresponding to at least two flow rates of the blood flow through the first flow path.
A method for aspirating blood flow, the method comprising:
- providing a hemostasis valve comprising a distal port and a side port;
- providing an aspiration control device comprising a control valve and a control interface;
- positioning the aspiration control device approximate the side port;
- providing a catheter;
- positioning the catheter in the distal port of the hemostasis valve;
- providing a vacuum source;
- providing a flow path from a lumen of the catheter to the side port;
- positioning the control valve of the aspiration control device in the flow path;
- providing a vacuum to the flow path with the vacuum source;
- and
- manipulating the control interface to control a flow rate through the flow path.
Dependencies are inferred from the claim text.