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Method and devices for administration of therapeutic gases

  • US 20090065001A1
  • Filed: 09/29/2008
  • Published: 03/12/2009
  • Est. Priority Date: 08/20/2002
  • Status: Abandoned Application
First Claim
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1. Apparatus for the administration of a medical gas to a patient comprises a housing including an upper portion and a lower portion, a removable cassette holding at least one compressed gas cartridge within said housing, said at least one compressed gas cartridge including a predetermined amount of said medical gas, patient supply means for providing said predetermined amount of said medical gas to said patient, connection means for sealingly connecting said upper portion of said housing to said lower portion of said housing with said cassette within said housing, said connecting means including first upper connecting means disposed at said lower end of said upper portion of said housing, second upper connecting means disposed above said first upper connecting means on said upper portion of said housing, first lower connecting means disposed at the upper end of said lower portion of said housing, second lower connecting means disposed below said first lower connecting means on said lower portion of said housing, said first upper connecting means adapted to cooperatively engage said second lower connecting means to provide an intermediate closed configuration for said housing, and said second upper connecting means adapted to cooperatively engage said first lower connecting means to provide a sealed configuration for said housing, the distances between said first and second upper connecting means and said first and second lower connecting means being adapted so that said first upper connecting means engages said second lower connecting means before said second upper connecting means engages said first lower connecting means.

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