Linear Technology Corporation

Other

Benjamin H Kwan

John E Readdie

Jeng Chang

Binay Sugla

A method and system for monitoring and preventing a patient from developing pressure ulcers, comprising (1) a sensing unit, which includes a pressure sensor, attachable to a body part of a patient and having a unique identifier, for detecting pressure exerted by a supporting surface and outputting pressure data indicative of pressure as a function of time; and a wireless transceiver for transmitting the pressure data and/or the unique identifier; (2) a controller unit configured for receiving the pressure data and the unique identifier, associating the unique identifier with the body part of the patient, and for transmitting the pressure data and the unique identifier; and (3) a central server device configured for (i) receiving the unique identifier and the pressure data from the controller unit; (ii) determining whether the pressure data exceeds a predetermined value associated with the body part of the patient; and (iii) transmitting to the controller unit a determination that the pressure data exceeded the predetermined value, the controller unit outputting a signal indicative of the determination.

System and method for prevention of pressure ulcers

A Schottky diode is presented which has reduced minority carrier injection and reduced diffusion of the metallization into the semiconductor. These improvements are obtained by interposing a layer comprising a mixture of silicon and chromium between the anode metallization layer and the semiconductor in a Schottky diode. The layer including chromium acts an effective barrier against the diffusion of the metallization layer into the semiconductor, and at the same time reduces the amount of minority carrier injection into the substrate. The layer including chromium requires no addition photolithograpic masks because it can be plasma etched using the metallization layer as a mask after that layer has been patterned.

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Pleasanton, CA, United States of America

Benjamin H Kwan