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Fluid container sensor

  • US 6,528,739 B1
  • Filed: 08/29/2000
  • Issued: 03/04/2003
  • Est. Priority Date: 10/10/1997
  • Status: Expired due to Fees
First Claim
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1. A sensor for medical monitoring of a fluid in a container coupled to a patient, the sensor comprising:

  • an upper hook;

    a lowerhook coupled to the upper hook and movable in relation thereto, along a first direction, said loser hook adapted for suspending a fluid container therefrom;

    a cam member fixedly coupled to one of said hooks and movable in relation to the other of said hooks;

    a biasing member coupled between said hooks;

    a first switch coupled adjacent said cam member, wherein said first switch is biased in a second direction not parallel to said first direction so that said first switch bears against said cam member causing said first switch to be in a first state when said lower hook is unloaded and to be in a second state when said lower hook is sufficiently loaded to overcome said biasing member; and

    an alarm coupled to said first switch and operative to indicate a fluid condition when said switch is in one of said states but not the other.

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