Occluder to Prevent Fluid Flow Through Pump with Vacuum at Output
First Claim
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1. An occluder configured to be coupled to a negative pressure source comprising:
- a support member comprising;
a first channel comprising a first channel outlet and a first port; and
a second channel comprising a second channel outlet and a second port; and
a flexible membrane sealably coupled to the support member such that a space is formed between the membrane and the support, wherein the first port is configured to be in fluid communication with the second port through the space when positive pressure is applied to the space; and
the first port is configured to be blocked when negative pressure is applied to the space.
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Abstract
An occluder to prevent fluid flow through a pump with a vacuum at the output is provided. Embodiments may be used in combination with negative pressure wound therapy systems, in which the occluder is coupled to a fluid source, a wound insert, and a negative pressure source, and the occluder is configured to permit fluid delivery to the wound insert under positive pressure.
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Citations
79 Claims
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1. An occluder configured to be coupled to a negative pressure source comprising:
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a support member comprising; a first channel comprising a first channel outlet and a first port; and a second channel comprising a second channel outlet and a second port; and a flexible membrane sealably coupled to the support member such that a space is formed between the membrane and the support, wherein the first port is configured to be in fluid communication with the second port through the space when positive pressure is applied to the space; and
the first port is configured to be blocked when negative pressure is applied to the space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15-68. -68. (canceled)
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69. A system treating a wound with negative pressure wound therapy comprising:
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an occluder comprising; a first rigid support comprising a first channel and a first port; a second rigid support comprising a second channel and a second port; and a flexible membrane sealably coupled to the first rigid support and the second rigid support such that a space is formed between the membrane and the supports, where the first port is configured to be in fluid communication with the second port when the space is under positive pressure; and a ball disposed within the space between the first port and the second port, where the ball is configured to seal one of the first port or second port when the occluder is placed under negative pressure; and a fluid source coupled to a pump, the pump coupled to the occluder through a first conduit in fluid communication with the first port. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77, 78, 79)
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Specification