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Syringe pumps

  • US 6,551,277 B1
  • Filed: 06/29/2000
  • Issued: 04/22/2003
  • Est. Priority Date: 07/03/1999
  • Status: Expired due to Term
First Claim
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1. A syringe pump adapted to receive a syringe of the kind having a plunger movable along a barrel, the pump comprising:

  • a location for said syringe;

    a syringe drive mechanism; and

    a plunger head retainer mechanism, said retainer mechanism including a pad member and a force sensor, said force sensor coupling said pad member with said retainer mechanism, wherein said pad member is adapted to engage a rear surface of a head of the plunger such that a forwardly-directed force is applied to the plunger via the pad member and such that said force sensor is responsive to force exerted on the plunger head by the retainer mechanism during displacement of the plunger.

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