Method and apparatus for providing therapeutically effective dosage formulations of lidocaine with and without epinephrine
First Claim
1. An apparatus for extending the shelf life of buffered lidocaine for administration in therapeutic amounts, comprising a two-chambered medicine vial, wherein one chamber isolates a lidocaine solution and the other sodium bicarbonate with a fracturable wall therebetween such that the wall is fractured for mixing said lidocaine solution and sodium bicarbonate to create a buffered lidocaine for administration, and further comprising stopper means for the insertion of a syringe for extraction of said mixture for administration.
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Abstract
An apparatus for providing therapeutically effective mixtures of buffered lidocaine (with and without epinephrine) while simultaneously increasing the shelf life, having a two-chambered medicine vial, in which one chamber isolates up to 20 ml of a lidocaine solution (1% with or without epinephrine) and the other chamber isolates up to 2 ml of sodium bicarbonate (8.4%), with a fracturable wall therebetween such that the wall is fractured by bending or twisting, for mixing the lidocaine and sodium bicarbonate to create a buffered lidocaine for administration in therapeutically effective amounts, and further comprising stopper means, like a rubber stopper, for the insertion of a syringe for extraction of the mixture for administration. Also shown is a method for isolating the components for shelf life and providing mixing for an effective composition.
19 Citations
18 Claims
- 1. An apparatus for extending the shelf life of buffered lidocaine for administration in therapeutic amounts, comprising a two-chambered medicine vial, wherein one chamber isolates a lidocaine solution and the other sodium bicarbonate with a fracturable wall therebetween such that the wall is fractured for mixing said lidocaine solution and sodium bicarbonate to create a buffered lidocaine for administration, and further comprising stopper means for the insertion of a syringe for extraction of said mixture for administration.
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10. A method for administering a therapeutic amount of buffered lidocaine, comprising:
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(a) isolating a therapeutic amount of lidocaine in solution and a pH-neutralizing amount of buffering reagent in a single medicine vial having a breachable wall between said amounts of lidocaine and buffering reagent; (b) breaching said wall; (c) mixing said lidocaine and said buffering reagent; and (d) withdrawing a suitable quantity of said mixture for administration. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification