Pressure-Operated Switch
AssigneeKCI Licensing, Inc.
InventorsChristopher Brian LOCKE, Benjamin Andrew PRATT
Life of this patent
Estimating the term…
Abstract
Systems, methods, and apparatuses for regulating the delivery of negative-pressure therapy are described. The system includes a negative-pressure source, an energy source, and a switch. The switch can include a first conductor electrically coupled to the negative-pressure source, a second conductor electrically coupled to the energy source, and a diaphragm having a first position electrically coupling the first conductor to the second conductor and a second position separated from the first conductor and the second conductor. The diaphragm is configured to move between the first position and the second position in response to a differential between a control pressure and a therapy pressure.
Claims17
-39. (canceled)
A regulator for controlling negative-pressure therapy, the regulator comprising:
- a supply chamber adapted to be fluidly coupled to a dressing;
- a charging chamber configured to be fluidly coupled to a negative-pressure source and to the supply chamber through a port;
- a first terminal configured to be electrically coupled to the negative-pressure source;
- a second terminal configured to be electrically coupled to an energy source;
- and
- a membrane coupled to the charging chamber and operable to conduct electricity disposed proximate to the first terminal and the second terminal, the membrane having a first position electrically coupling the first terminal to the second terminal and a second position separated from the first terminal and the second terminal, the membrane operable to reciprocate between the first position and the second position to control operation of the negative-pressure source and fluid communication through the port based on a differential between an ambient pressure and a therapy pressure.
(canceled)
A system for providing negative pressure therapy, the system comprising:
- a negative-pressure source;
- an electronic assembly, the electronic assembly comprising:
- a printed circuit board,
- a controller coupled to the printed circuit board,
- at least one light emitting diode coupled to the printed circuit board and electrically coupled to the controller;
- a container defining a fluid chamber;
- and
- a switch, the switch comprising:
- a housing forming a chamber and having a fluid inlet and a fluid outlet, the fluid inlet configured to be fluidly coupled to the fluid chamber and the fluid outlet configured to be fluidly coupled to the negative-pressure source,
- a first terminal electrically coupled to the negative-pressure source,
- a second terminal electrically coupled to an energy source, and
- a diaphragm having a first position electrically coupling the first terminal to the second terminal and a second position separated from the first terminal and the second terminal, the diaphragm configured to move between the first position and the second position in response to a differential between a control pressure and a therapy pressure
Dependencies are inferred from the claim text.