Pressure control apparatus
First Claim
1. A wound therapy apparatus comprising:
- a wound dressing configured to be positioned over a wound and absorb wound exudate;
a negative pressure source configured to be in fluid communication, via a fluid flow path, with the wound dressing;
a pressure sensor configured to measure pressure in the fluid flow path;
a button or a switch configured to receive user inputs from a user; and
a controller configured to;
record an activation time at which the controller or the negative pressure source is activated for a first time,responsive to a first user input of the user inputs, activate the negative pressure source to attempt to generate a first level of negative pressure under the wound dressing,responsive to a second user input of the user inputs, deactivate the negative pressure source,monitor a time elapsed from the activation time, andresponsive to the time elapsed satisfying a lifetime threshold, transition permanently to an end of life state in which the negative pressure source is deactivated,wherein the controller, the negative pressure source, and the wound dressing are configured to operate together to provide negative pressure wound therapy without use of a fluid collection canister.
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Accused Products
Abstract
Methods and apparatuses are disclosed for applying negative pressure to a wound site. In some embodiments, the apparatus comprises a source of negative pressure, a processing element, and a memory comprising instructions configured to, when executed on the processing element, cause the apparatus to attempt to generate, via the source of negative pressure, a desired negative pressure at the wound site. If the desired negative pressure has not been generated after a first predetermined period of time, the instructions cause the apparatus to: deactivate the source of negative pressure for a second predetermined period of time, and subsequently attempt to generate the desired negative pressure at the wound site.
184 Citations
24 Claims
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1. A wound therapy apparatus comprising:
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a wound dressing configured to be positioned over a wound and absorb wound exudate; a negative pressure source configured to be in fluid communication, via a fluid flow path, with the wound dressing; a pressure sensor configured to measure pressure in the fluid flow path; a button or a switch configured to receive user inputs from a user; and a controller configured to; record an activation time at which the controller or the negative pressure source is activated for a first time, responsive to a first user input of the user inputs, activate the negative pressure source to attempt to generate a first level of negative pressure under the wound dressing, responsive to a second user input of the user inputs, deactivate the negative pressure source, monitor a time elapsed from the activation time, and responsive to the time elapsed satisfying a lifetime threshold, transition permanently to an end of life state in which the negative pressure source is deactivated, wherein the controller, the negative pressure source, and the wound dressing are configured to operate together to provide negative pressure wound therapy without use of a fluid collection canister. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of providing wound therapy, the method comprising:
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recording an activation time at which a controller or a negative pressure source is activated for a first time; receiving a first user input with a button or a switch; in response to receiving the first user input, activating, with the controller, the negative pressure source to attempt to generate a first level of negative pressure under a wound dressing positioned over a wound; absorbing wound exudate with the wound dressing; measuring pressure in a fluid flow path connecting the negative pressure source and the wound dressing; receiving a second user input with the button or the switch; in response to receiving the second user input, deactivating, with the controller, the negative pressure source; monitoring, with the controller, a time elapsed from the activation time; and responsive to the time elapsed satisfying a lifetime threshold, transitioning, with the controller, permanently to an end of life state in which the negative pressure source is deactivated, wherein the method is performed without using a fluid collection canister. - View Dependent Claims (21, 22, 23, 24)
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Specification