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Multiple canopy

  • US 6,537,249 B2
  • Filed: 12/18/2000
  • Issued: 03/25/2003
  • Est. Priority Date: 12/18/2000
  • Status: Expired due to Fees
First Claim
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1. A fluid delivery device for infusing medicinal fluids into a patient at a controlled rate comprising:

  • (a) a housing including a base, a fluid inlet and a fluid outlet;

    (b) at least one extendable membrane connected to said base, said membrane being extendable from a first position proximate said base to a second distended position as a result of pressure imparted by fluids introduced into said fluid inlet to establish internal stresses tending to move said membrane toward said first position; and

    (c) a cover assembly connected to said base for forming in conjunction with said base and said membrane a plurality of circumferentially spaced, concentric chambers for receiving said membrane as said membrane extends toward said second extended position.

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