Surgery – Devices transferring fluids from within one area of body to... – With flow control means
Reexamination Certificate
2005-02-25
2009-02-03
Deak, Leslie R (Department: 3761)
Surgery
Devices transferring fluids from within one area of body to...
With flow control means
C604S006100, C251S129110
Reexamination Certificate
active
07485105
ABSTRACT:
An improvement for a programmable valve system of the type which is implanted in a medical patient and used to divert cerebrospinal fluid (CSF) from an intraventricular space of the patient to a terminus such as the patient peritoneal cavity. Such system includes means for establishing a flow path for the CSF to the terminus, which flow path includes a normally closed valve and means for adjusting the opening pressure of the valve in order to regulate the quantity of CSF diverted. The improvement enables an operator to be apprised of the actual opening pressure setting of the valve. A sensor is implantable at the patient and responds to the actual opening pressure setting, by generating an NIR telemetry signal indicative of the actual setting. This signal is transcutaneously transmitted through the skin of the patient to an external point. The telemetry signal is processed to produce observer intelligible data indicating the opening pressure setting of the valve.
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Deak Leslie R
Schultz & Associates P.C.
Wiest Phil
LandOfFree
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