Method of regulating CSF drainage
AssigneeSophysa
InventorsPhilippe Negre, Christophe Moureaux, Christophe Boyer, Olivier Bonnal
Life of this patent
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Abstract
An implantable drainage device for draining the cerebro-spinal fluid of a patient, the device including: a drainage valve including a valve member and a valve seat; a control unit suitable for modifying an operating parameter of said valve, at least as a function of a measurement (D) of the fluid flow rate through said valve; an actuator controlled by the control unit, suitable for modifying the operation of said valve as a function of said operating parameter as modified by the control unit; and a mass flowmeter suitable for evaluating said flow rate of fluid through said valve.
Claims20
An implantable drainage device for draining a patient's cerebro-spinal fluid, the device comprising:
- a drainage valve comprising a valve member and a valve seat;
- a control unit suitable for modifying an operating parameter of said valve, at least as a function of a measurement (D) of the fluid flow rate through said valve, said control unit being also suitable for re-evaluating a setpoint flow rate (D*) at regular intervals and/or following a particular event;
- and
- an actuator controlled by the control unit, suitable for modifying the operation of said valve as a function of said operating parameter as modified by the control unit;
- the device including a mass flowmeter suitable for taking said measurement of said flow rate of fluid through said valve.
Dependencies are inferred from the claim text.