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Connection system for fluid lines having telescoping connecting elements, in particular for respirators or anesthetic units

  • US 4,557,261 A
  • Filed: 12/08/1981
  • Issued: 12/10/1985
  • Est. Priority Date: 12/20/1980
  • Status: Expired due to Fees
First Claim
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1. A connection system for respirator or anesthesia units with a Y-piece including an inhalation hose socket, an exhalation hose socket and a connector attachment piece, as well as a tubular connector having two open ends, one end portion thereof capable of being inserted into the connector attachment piece and having a tube attachment at the opposite end portion adapted to receive an endotracheal tube thereon, and further including said connection system having one connecting element having a first annular groove disposed in its outer circumference, and said connection system having another connecting element including at least one spring-biased fastening means disposed thereon for elastically engaging the annular groove under spring action, the connecting elements being freely rotatable relative to one another, said connection system comprising:

  • at least one selectively actuable hand-operable unfastening means for temporarily overriding the spring action of said at least one fastening means,sealing means disposed on said one connecting element and cooperating with the inner circumference of said other connecting element,said other connecting element constituting the connector attachment piece of said Y-piece and the one connecting element constituting the one end portion of said connector with the tube attachment,said at least one spring-biased fastening means being provided on said connector attachment piece transversely to its longitudinal axis,said at least one spring-biased fastening means comprising a lever having inner and outer arms, a pivot and means for spring-loading the outer arm, said connector attachment piece including a slot extending through the sidewall thereof transverse to its longitudinal axis and sized to receive the lever therein, said lever positioned in said slot such that at least a portion of the inner lever arm thereof extends into the lumen of the connector attachment piece and said pivot extending through said slot and said lever parallel to the longitudinal axis of the connector attachment piece whereby one of said arms is movable relative to the other in a plane transverse to the longitudinal axis of said connector attachment piece, said spring loading means including a spring element engaging the connector attachment piece at one end and the outer arm at the other, said spring element biasing the inner arm of said lever into engagement with the annular groove.

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