DEVICE FOR WITHDRAWING OR ADDING FLUIDS TO HYPODERMIC SYRINGES
First Claim
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spaced positions along said slot therefrom providing an abutment stop for the syringe plunger rod when the latter is withdrawn to a selected dosage position, and means for manually moving said carriage and stop member as an intercoupled assembly through advancing and retracting strokes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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Accused Products
Abstract
A mechanical device to aid the visually handicapped in loading a hypodermic syringe with a predetermined charge of liquid from a bottle having a penetrable cap, including an elongated base having a cradle and spring clip for releasibly holding the bottle, a carriage for removably supporting a hypodermic syringe having a needle pointing toward the bottle, a stop member adjustably coupled with the carriage at variable distance therefrom to indicate by abutment of the syringe plunger rod therewith when it is withdrawn to the proper charge position, and the carriage and stop member being guided for reciprocative movement along the base between limits wherein the needle is inserted in and is withdrawn from the bottle.
143 Citations
7 Claims
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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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2. Apparatus as defined in claim 1, wherein said bottle supporting means comprises a generally U-shaped cradle including an upwardly projecting leg having an upwardly opening slot therein to receive and center a neck portion of the bottle therein and including a second leg forming an abutment for the bottom of the bottle, and a generally C-shaped clip member of spring metal for receiving and frictionally holding a main body portion of the bottle therein.
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3. Apparatus as defined in claim 2, wherein said syringe body portion has flange means projecting generally radially from the body portion, and said carriage member includes a rising shoulder portion having a first recess portion for receiving part of said body portion and a second intersecting recess for receiving said flange means and holding the syringe body against axial displacement.
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4. Apparatus as defined in claim 1, wherein said syringe body portion has flange means projecting generally radially from the body portion, and said carriage member includes a rising shoulder portion having a first recess portion for receiving part of said body portion and a second intersecting recess for receiving said flange means and holding the syringe body against axial displacement.
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5. Apparatus as defined in claim 4, wherein said second intersecting recess extends acress said shoulder portion transversely of said axis and said shoulder portion includes outwardly diverging surfaces forming a tapered entrance throat to said second intersecting recess.
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6. Apparatus as defined in claim 4, wherein said coupling means includes an elongated rod fixed to said carriage and extending through said stop member and set screw means in the latter to releasibly clamp against said rod.
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7. Apparatus as defined in claim 1, wherein said coupling means includes an elongated rod fixed to said carriage and extending through said stop member and set screw means in the latter to releasibly clamp against said rod.
Specification