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Implantable device for in-vivo intracranial and cerebrospinal fluid pressure monitoring

United States Patent

March 18, 2003
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The present invention relates to a completely implantable intracranial pressure monitor, which can couple to existing fluid shunting systems as well as other internal monitoring probes. The implant sensor produces an analog data signal which is then converted electronically to a digital pulse by generation of a spreading code signal and then transmitted to a location outside the patient by a radio-frequency transmitter to an external receiver. The implanted device can receive power from an internal source as well as an inductive external source. Remote control of the implant is also provided by a control receiver which passes commands from an external source to the implant system logic. Alarm parameters can be programmed into the device which are capable of producing an audible or visual alarm signal. The utility of the monitor can be greatly expanded by using multiple pressure sensors simultaneously or by combining sensors of various physiological types.
Ericson; Milton N. (Knoxville, TN), McKnight; Timothy E. (Greenback, TN), Smith; Stephen F. (London, TN), Hylton; James O. (Clinton, TN)
UT-Battelle, LLC (Oak Ridge, TN)
09/ 406,280
September 24, 1999
GOVERNMENT LICENSE RIGHTS STATEMENT This invention was made with Government support under Contract No. DE-AC05-960R22464 awarded by the U.S. Department of Energy to Lockheed Martin Energy Research Corp., and the Government has certain rights in this invention.