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DEVICE FOR WITHDRAWING OR ADDING FLUIDS TO HYPODERMIC SYRINGES

  • US 3,833,030 A
  • Filed: 03/05/1973
  • Issued: 09/03/1974
  • Est. Priority Date: 03/05/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for use by the visually handicapped for loading a syringe with a predetermined charge of liquid fluid from a bottle, the syringe having a cylindrical body portion and needle and a plunger rod and piston assembly movable axially of the body portion and the bottle having a penetrable cap member, the apparatus comprising an elongated planiform panel forming a platform including means defining an elongated rectilinear slot therein forming a rectilinear guideway extending along a major portion of the length of the panel between preselected limits, bottle supporting means for receiving and releasibly supporting the bottle with said penetrable cap facing toward the intermediate portion of said platform, a carriage member located in the intermediate region of the platform having projecting portions extending intO a guided by said guide means for reciprocative movement of the carriage along a rectilinear axis between said limits, the carriage having recess means for supporting the syringe with the needle in preselected alinement along a syringe axis paralleling said rectilinear axis with said penetrable cap for insertion movement into and withdrawal from the bottle, an abutment block forming a stop member having a stop face facing toward said carriage and said bottle supporting means extending in transverse intercepting relation to the syringe axis, the abutment block having a guide tongue portion extending into said slot guiding the block for adjustment along said slot relative to said carriage and including adjustable coupling means connecting the block with said carriage to be coupled with the carriage at selected spaced positions along said slot therefrom providing an abutment stop for the syringe plunger rod when the latter is withdrawn to a selected dosage position, and means for manually moving said carriage and stop member as an intercoupled assembly through advancing and retracting strokes along said slot between the limits of said guide means moving said needle into and withdrawing the same from said bottle.

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