System and method for hybrid control of reduced pressures delivered to a tissue site

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11219711
APP PUB NO 20190125942A1
SERIAL NO

16158525

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In one example embodiment, a system for stimulating healing of tissue at a wound site is disclosed. The system comprises a dressing including a porous pad and a drape covering the pad at a wound site for maintaining negative pressure at a wound site, a negative-pressure source including a pump and an electric motor to generate a pump pressure (PP) for applying to the wound site, and a first pressure sensor for sensing the pump pressure (PP). The system further comprises a controller coupled to the first pressure sensor and electric motor and including a PID controller that compares the pump pressure (PP) to a target pump pressure (TPP) and a bang-bang controller that controls wound pressure (WP) proximate the wound site, and wherein the controller is configured to alternatively select the bang-bang controller when the system is in a low-leakage condition or the PID controller when the system is in a high-leakage condition.

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Patent Owner(s)

  • KCI LICENSING, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edgar,, Jr Reuben W San Antonio, US 4 210
Francis, Loren San Antonio, US 6 37

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