Automatic syringe filling system
First Claim
Patent Images
1. Apparatus for automatically filling each of a plurality of syringes substantially simultaneously with a predetermined amount of fluid, comprising:
- a manifold having an input port for receiving the fluid and a plurality of output ports each adapted to be connected to one of said plurality of syringes;
a single pump for supplying the fluid to the input port of said manifold;
a plurality of detectors respectively located at predetermined spaced positions from the output ports of said manifold so as to detect when the plunger of each syringe connected to said manifold has been extended a predetermined amount; and
means responsive to said detectors for interrupting the supply of fluid to said manifold when all of the plungers of syringes connected to said manifold have been extended by said predetermined amount.
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Accused Products
Abstract
An automatic syringe filling system includes a pump for supplying liquid under pressure to a manifold that distributes the liquid to each of a plurality of syringes. Microswitches disposed at predetermined positions detect when the plunger of each syringe connected to the manifold has been extended a particular distance determined by the desired fill volume. When all of the plungers are extended this distance, the supply of liquid to the manifold is discontinued by closing a valve and deactuating the pump.
161 Citations
24 Claims
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1. Apparatus for automatically filling each of a plurality of syringes substantially simultaneously with a predetermined amount of fluid, comprising:
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a manifold having an input port for receiving the fluid and a plurality of output ports each adapted to be connected to one of said plurality of syringes; a single pump for supplying the fluid to the input port of said manifold; a plurality of detectors respectively located at predetermined spaced positions from the output ports of said manifold so as to detect when the plunger of each syringe connected to said manifold has been extended a predetermined amount; and means responsive to said detectors for interrupting the supply of fluid to said manifold when all of the plungers of syringes connected to said manifold have been extended by said predetermined amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for automatically filling each of a plurality of syringes substantally simultaneously with a predetermined amount of fluid, comprising:
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a manifold having an inlet port for receiving the fluid and a plurality of output ports each adapted to be connected to one of said plurality of syringes; a single pump for supplying the fluid under pressure to said manifold; a valve for selectively placing said pump in fluid communication with said manifold; support means adapted to be connected to each of said plurality of syringes to support said syringes at respective predetermined positions; a limit plate disposed at a predetermined distance from said support means so as to be contacted by the plunger of a at least one syringe connected to said support means during the filling thereof, said distance being related to said predetermined amount of fluid; sensing means for detecting when the plunger of each syringe connected to said support means is extended a certain distance by virtue of the syringe being filled with said predetermined amount of fluid; and means responsive to a signal from said sensing means indicating that the plungers of all syringes connected to said support means are extended said certain distance for deactuating at least one of said pump and said valve to thereby interrupt the supply of fluid to said manifold. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. An apparatus for automatically filling a syringe with a predetermined amount of fluid, comprising:
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a pump for supplying the fluid under pressure; means for supporting a syringe to be filled at a predetermined location; a valve for selectively placing the pump in fluid communication with a syringe supported by said support means to thereby fill the same; sensing means for detecting when the plunger of a syringe supported by the support means has extended a predetermined distance during the filling thereof, said distance being related to said predtermined amount of fluid; and means responsive to said sensing means for deactuating said valve to thereby interrupt the supply of fluid to a syringe supported by the support means. - View Dependent Claims (22, 23, 24)
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Specification