Wound care and infusion method and system utilizing a therapeutic agent
Inventors
Quisenberry, Tony • McSpadden, Sam K. • Balachandran, Niran • LaSalle, Robert K. • Anderson, Thomas C. • Davis, Kathryn
Assignees
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Publication Number
US-10300180-B1
Publication Date
2019-05-28
Expiration Date
Abstract
A wound-care system includes a first pump fluidly coupled to an oxygen source. An oxygen concentrator is fluidly coupled to the first pump. A humidification system is fluidly coupled to the oxygen concentrator. A wound dressing is fluidly coupled to the humidification system and to an exudate chamber. A negative-pressure tube fluidly is coupled to the exudate chamber. A first valve is disposed between the first pump and the oxygen concentrator. A second valve is disposed between the oxygen concentrator and the wound dressing. A third valve is disposed in the negative-pressure tube. Selective activation of the first pump, the first valve, the second valve, and the third valve facilitates delivery of at least one of individual, sequential, or simultaneous negative-pressure treatment and oxygen-rich fluid treatment to the wound via the wound dressing.
Core Innovation
The invention relates to a wound-care system that coordinates oxygen-rich fluid treatment and negative-pressure treatment to a wound via a wound dressing. The system includes a first pump coupled to an oxygen source and an oxygen concentrator, and further includes a humidification system coupled to the oxygen concentrator. A wound dressing is fluidly coupled to the humidification system and to an exudate chamber, and a negative-pressure tube is fluidly coupled to the exudate chamber.
To enable selective delivery, the system includes a first pressure sensor exposed to pressure in the negative-pressure tube and a second pressure sensor exposed to pressure between the oxygen concentrator and the wound dressing. A first valve disposed between the first pump and the oxygen concentrator selectively directs flow of fluid from the first pump to at least one of the oxygen concentrator and the humidification system. A second valve disposed between the oxygen concentrator and the wound dressing selectively vents the wound dressing to an exterior environment, and a third valve disposed in the negative-pressure tube selectively vents the wound dressing to the exterior environment.
Selective activation of the first pump, the first valve, the second valve, and the third valve facilitates delivery of at least one of individual, sequential, or simultaneous negative-pressure treatment and oxygen-rich fluid treatment to the wound via the wound dressing. Additional embodiments describe selective negative-pressure and oxygen-rich fluid paths using multiple valves, pressure monitoring to support control, and selectable treatment modes represented as simultaneous and sequential process flows.
Claims Coverage
Independent claims cover a wound-care system that selectively delivers negative-pressure treatment and oxygen-rich fluid treatment using a coordinated pump/valve arrangement and pressure sensors monitoring different portions of the fluid pathways. The core inventive features number at least 7.
Selective delivery of negative-pressure and oxygen-rich fluid treatments
Selective activation of the first pump, the first valve, the second valve, and the third valve facilitates delivery of at least one of individual, sequential, or simultaneous negative-pressure treatment and oxygen-rich fluid treatment to the wound via the wound dressing.
Oxygen source to humidification to wound dressing via first pump
A first pump fluidly coupled to an oxygen source, an oxygen concentrator fluidly coupled to the first pump, and a humidification system fluidly coupled to the oxygen concentrator, with a wound dressing fluidly coupled to the humidification system and to an exudate chamber.
Negative-pressure tube coupled to exudate chamber with pressure sensing
A negative-pressure tube fluidly coupled to the exudate chamber and a first pressure sensor exposed to pressure in the negative-pressure tube.
Second pressure sensing between oxygen concentrator and wound dressing
A second pressure sensor exposed to pressure between the oxygen concentrator and the wound dressing.
First valve selecting flow from first pump to oxygen concentrator and/or humidification system
A first valve disposed between the first pump and the oxygen concentrator, the first valve being operable to selectively direct flow of fluid from the first pump to at least one of the oxygen concentrator and the humidification system.
Second valve venting wound dressing to exterior environment
A second valve disposed between the oxygen concentrator and the wound dressing, the second valve being operable to selectively vent the wound dressing to an exterior environment.
Third valve venting via negative-pressure tube to exterior environment
A third valve disposed in the negative-pressure tube, the third valve being operable to selectively vent the wound dressing to the exterior environment.
The independent claims define coordinated delivery of oxygen-rich fluid treatment and negative-pressure treatment to a wound dressing via selective activation of a first pump and multiple valves, with pressure sensors exposed to pressures in distinct parts of the fluid pathways to support individual, sequential, or simultaneous treatment delivery.
Stated Advantages
Facilitates delivery of at least one of individual, sequential, or simultaneous negative-pressure treatment and oxygen-rich fluid treatment to the wound via the wound dressing.
Documented Applications
Wound-care system for delivering negative-pressure treatment and oxygen-rich fluid treatment to a wound via a wound dressing.
Simultaneous and sequential treatment modes for wound care are described via process flow diagrams.
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