Liquid filling and injecting device

Abstract

The invention discloses a liquid filling and injecting device, and mainly relates to the field of medical equipment. Comprising a main body, a hand wheel is rotationally arranged on one side of the main body, and a firing pin mechanism in transmission connection with a connecting shaft is arranged at the position, above a syringe, in the main body; a second push rod is arranged in the main body and located above the liquid storage cylinder in a sliding mode, a poking wheel is rotationally arranged in the main body, the bottom end of the second push rod makes contact with a piston in the liquid storage cylinder, a metering poking strip capable of being transversely pulled is arranged on one side of the main body, and the poking wheel is poked through the metering poking strip; the bottom of the injection cylinder and the bottom of the liquid storage cylinder are detachably sleeved with medicine guide shells, and the two medicine guide shells are communicated through a medicine guide pipe. The device has the advantages that a medicine taking device and an injection device are combined together, the medicine taking process and the injection process are integrated, common patients can operate and use the device conveniently, blind patients can control and extract proper injection amount by themselves, and application and popularization are facilitated.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a liquid filling and injection device. Background technique [0002] Needle-free injection is an injection method without a traditional capillary needle. It does not need to be pierced into the body by a needle, but a certain pressure is generated by the needle-free injection pusher through a mechanically stable annular compression spring system, which is pushed under the action of pressure. The drug solution is diffusely injected into the subcutaneous tissue of the patient. Therefore, to a certain extent, the pain and fear of acupuncture in the flesh will be reduced. [0003] Most of the existing needle-free syringes are a combination of a medicine-taking device and an injection device, which requires the medicine to be taken first and then separated for injection. The separation process and operation are cumbersome and have the disadvantage of poor ease of use; and for blind p...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing needle-free injectors have a structure in which the medicine taking device and the injection device are coordinated. It is necessary to take the medicine first and then separate the injection. The separation process and operation are cumbersome, and there are disadvantages of poor usability; The injection operation can only be performed after the medicine is separated, and the blind patients themselves cannot clearly control the extraction of the medicine suitable for their own injection volume, which is not convenient for the blind patients to use

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