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Fluid sampling method and apparatus

  • US 4,602,517 A
  • Filed: 02/11/1985
  • Issued: 07/29/1986
  • Est. Priority Date: 02/11/1985
  • Status: Expired due to Fees
First Claim
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1. A fluid extracting and dispensing apparatus comprising in combination:

  • syringe body carrying means;

    syringe body carried by such syringe body carrying means;

    syringe piston rod means located within said syringe body and extending a distance outwardly therefrom from a first enlarged end exterior of said syringe body and movable therein;

    movable piston rod gripping means gripping said enlarged end of said piston rod and comprising a first plate having slot means suitable to accommodate the piston rod with the enlarged portion resting upon said first plate;

    a second plate having a resilient member affixed thereto wherein said first and second plates are held together with the resilient member pressing the enlarged end of said piston rod downward against said first plate exterior of said syringe body;

    actuating rod means attached to said piston rod gripping means and slidably mounted in actuating lever means frame attached to the syringe body carrying means;

    movable actuating lever means pivotally mounted upon said lever means frame and including spring means limiting the said movable lever means motion in actuating travel and wherein spring means returns said lever means to an original starting position upon release of pressure;

    pawl means carried by said lever means, said pawl means being cooperable with said actuating rod means in such manner as to be capable of imparting movement to said actuating rod means in one direction when said lever means is moved; and

    tubular extension means attached to a second end of said syringe body.

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