Patent ID: 9017295
Filing Date: 2015-04-28
Classification: A61M,Y10S

Abstract:
1. A syringe adapter comprising: a base being tubular in shape and having a circular wall formed on and around the base and having an outer surface; an inner surface; a mounting recess defined in the circular wall; and a guiding groove formed in the outer surface of the circular wall; a bottom formed in the mounting recess and having an inner liquid channel formed transversely through the bottom and communicating with the guiding groove of the circular wall; and an exhaust channel formed through the base, communicating the mounting recess with an outside of the syringe adapter and not communicating with the inner liquid channel of the bottom; a dosing tube being tubular in shape, mounted securely around the outer surface of the circular wall of the base and having an injection tube protruding up from a top of the dosing tube and communicating with the mounting recess of the base; and a stop formed on an inner surface of the dosing tube adjacent to the top of the dosing tube; and a resilient valve formed integrally as a single part of the same material and mounted in the mounting recess of the base and the dosing tube, and the resilient valve having a positioning ring mounted on the bottom of the base, corresponding to the inner surface of the circular wall of the base and having an upper end selectively abutting the stop of the dosing tube; a bendable portion formed around the upper end of the positioning ring; a plunger formed on the bendable portion and protruding into the injection tube of the dosing tube; and an air chamber defined in the positioning ring, the bendable portion and the plunger and communicating with the exhaust channel of the base; wherein when the plunger of the resilient valve is pushed toward the base, the bendable portion and the plunger of the resilient valve are bent in the dosing tube and the positioning ring of the resilient valve is detached from the stop of the dosing tube.