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Valve assembly for respiratory systems

  • US 8,932,261 B2
  • Filed: 07/29/2009
  • Issued: 01/13/2015
  • Est. Priority Date: 07/29/2008
  • Status: Expired due to Fees
First Claim
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1. An adapter assembly comprising:

  • a manifold comprising and fluidly interconnecting a ventilator port, a respiratory port, and an access port having a circumferential cross section, the access port comprising a valve seat that has an upper circumferential surface and a lower circumferential surface; and

    a valve assembly coupled to the access port, the valve assembly comprising a circular base with a substantially planar upper surface in contact with the upper circumferential surface of the valve seat and a lower surface in contact with the lower circumferential surface of the valve seat and a wall extending from the base with a slit that is formed through the wall with opposing sealing edges, wherein two circumferentially discontinuous portions are on the upper surface at opposing sides of the slit, each forming a segment of increased height from the planar surface, the discontinuous portions contact the upper circumferential surface of the valve seat and bias the opposing sealing edges into engagement.

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