System and method for automatic needle change warning
First Claim
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1. A system for automatic needle change warning, comprising:
- a. a syringe having a syringe needle, the syringe being functional to deliver an injection to an animal, the syringe further having a sensor for sensing physical contact between the syringe needle and the syringe;
b. a counter for automatically cumulatively counting each injection given to the animal during a period of continuous physical contact between the syringe needle and the syringe; and
c. responsive to the number of cumulatively counted injections given during the period of continuous physical contact between the syringe needle and the syringe equaling a predetermined maximum number of injections, a syringe needle change warning mechanism functional to deliver to an operator of the syringe a needle change warning.
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Abstract
A syringe has a sensor for sensing physical contact between a syringe needle and the syringe. As the sensor detects that a syringe needle has just been installed into the syringe, a counter is set to “zero”, indicating the number of injections given with the installed needle. The counter automatically and cumulatively counts each injection given to the animal during a period of continuous physical contact between the syringe and the syringe needle. When the number of cumulatively counted injections equals a predetermined maximum number of injections, a syringe needle change warning mechanism delivers a needle change warning to the operator of the syringe.
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Citations
8 Claims
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1. A system for automatic needle change warning, comprising:
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a. a syringe having a syringe needle, the syringe being functional to deliver an injection to an animal, the syringe further having a sensor for sensing physical contact between the syringe needle and the syringe;
b. a counter for automatically cumulatively counting each injection given to the animal during a period of continuous physical contact between the syringe needle and the syringe; and
c. responsive to the number of cumulatively counted injections given during the period of continuous physical contact between the syringe needle and the syringe equaling a predetermined maximum number of injections, a syringe needle change warning mechanism functional to deliver to an operator of the syringe a needle change warning. - View Dependent Claims (2, 3, 4)
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5. A system for automatic needle change warning, comprising:
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a. a syringe having a syringe needle, the syringe being functional to deliver an injection to an animal, the syringe further having an electrical sensor proximal to a position of complete and proper installation of the syringe needle into the syringe for sensing physical contact between a head end of the syringe needle and the sensor, b. a counter for, upon initially sensing the complete and proper installation of the syringe needle into the syringe, re-setting itself to a value of zero, then automatically cumulatively counting each injection given to the animal during a period of continuous physical contact between the syringe needle and the syringe; and
c. responsive to the number of cumulatively counted injections given during the period of continuous physical contact between the syringe needle and the sensor equaling a predetermined maximum number of injections, a syringe needle change warning mechanism delivering to an operator of the syringe a needle change warning. - View Dependent Claims (6, 7, 8)
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Specification