Systems and methods for deriving relative physiologic measurements using an implanted sensor device

Abstract

One embodiment of the present invention relates to a system for deriving physiologic measurement values that are relative to ambient conditions. In one embodiment, the system comprises an implantable medical device (“IMD”), which includes a main body; and a remote sensor system operable to measure an absolute physiologic parameter value within a patient's body. The system further comprises an external device, which can be operable to obtain an ambient condition value outside the patient's body that can affect the absolute physiologic parameter value, and communicate the ambient condition value to the remote sensor system. In accordance with one embodiment, the remote sensor system then can be further operable to receive the ambient condition value and calculate a relative physiologic parameter value from the ambient condition value and the absolute physiologic parameter value.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is related to three co-pending patent applications: U.S. patent application Ser. No. ______ entitled “SYSTEMS AND METHODS FOR DERIVING RELATIVE PHYSIOLOGIC PARAMETERS,” and filed by Scott Mazar (Attorney Docket No. 303437); U.S. patent application Ser. No. ______ entitled “SYSTEMS AND METHODS FOR DERIVING RELATIVE PHYSIOLOGIC PARAMETERS USING AN EXTERNAL COMPUTING DEVICE,” and filed by Von Arx et al. (Attorney Docket No. 306158); and U.S. patent application Ser. No. ______ entitled “SYSTEMS AND METHODS FOR DERIVING RELATIVE PHYSIOLOGIC PARAMETERS USING A BACKEND COMPUTING SYSTEM,” and filed by Von Arx et al. (Attorney Docket No. 306664). Each of the above-identified applications is filed on the same date as the present application, and each of the above-identified applications is incorporated by reference herein for all purposes.BACKGROUND OF THE INVENTION [0002] The present invention relates generally to measuri...

AI Technical Summary

Benefits of technology

[0007] One embodiment of the present invention relates to a system for deriving physiologic measurement values that are relative to ambient conditions. In one embodiment, the system comprises an implantable medical device (“IMD”), which includes a main body; and a remote sensor system operable to measure an absolute physiologic parameter value within a patient's body. The system further comprises an external device which can be operable to obtain an ambient condition value outside the patient's body that can affect the absolute physiologic parameter value, and communicate the ambient condition value to the remote sensor system. In accordance with one embodiment, the remote sensor system then can be further operable to receive the ambient condition value and calculate a relative physiologic parameter value from the ambient condition value and the absolute physiologic parameter value.

Problems solved by technology

The implantable biosensors that measure pressure deep within anatomical structures, however, typically can only communicate the absolute pressure associated with the immediate anatomical environment.

These devices are not capable of communicating gauge pressure because they are confined and sealed away from the ambient pressure external the body.

Images