Sub-atmospheric wound-care system
AssigneeJ&M Shuler Medical, Inc.
InventorsBrett A. Freedman, Robert L. Pauly
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for a sub-atmospheric wound-care (SAWS) system for treating an open wound. The SAWS system includes a regulated vacuum source for developing a negative pressure, a flow rate meter configured to measure a flow rate of liquid removed from the wound, a primary pressure regulating sensor located proximate the wound for directly measuring the negative pressure at the wound, a backup pressure regulating sensor located vacuum tube, a porous dressing suitable to be sealed airtight which is positioned within a wound interface chamber, a collection canister configured to collect said liquid removed from the wound, and an adapter configured to use wall suction a primary regulated vacuum source.
Claims17
A system comprising:
- an electronic vacuum regulator (EVR) comprising a housing and an automated pressure valve within the housing, the EVR configured to regulate suction pressure applied by a vacuum source at a negative pressure wound dressing by actuating the automated pressure valve, an intake end of the automated pressure valve fluidically connected to the vacuum source;
- a flow path extending between an outlet and an inlet, wherein the outlet is configured to fluidically connect to the vacuum source and wherein the inlet is configured to fluidically connect to the negative pressure wound dressing;
- and
- a first sensor positioned in the flow path, the first sensor configured to:
- detect a flow rate of liquid flowing through the flow path;
- and
- transmit a signal representative of the detected flow rate to the EVR;
- and
- a second sensor positioned at the negative pressure wound dressing, the second sensor configured to:
- detect a negative pressure applied at the negative pressure wound dressing;
- and
- transmit a signal representative of the detected negative pressure to the EVR;
- a third sensor configured to detect negative pressure, wherein the EVR further comprises software configured to compare at least one of the detected negative pressures received from the second and third sensors to a programmed suction pressure and to open and close the automated pressure valve in response to both of the detected flow rate of liquid flowing through the flow path and the comparison of the detected negative pressure to the programmed suction pressure to automatically regulate the suction pressure.
Dependencies are inferred from the claim text.