Push device used on short-travel preassembly medicating instrument

Abstract

The invention discloses a push device used on a short-travel preassembly medicating instrument. The push device comprises a guide sleeve I, a rotating sleeve and a guide part, wherein the guide sleeve I is coaxial with the rotating sleeve and is in axial stationary fit with the rotating sleeve in the axial direction; the guide part is arranged in the guide sleeve I and driven by the rotating sleeve to move along the axial direction of the guide sleeve I; and the guide part is a flat plate, a grab bucket or a guide barrel. During use, the push device is required to be matched with a medicine mixing card body; the bottom of the medicine mixing card body is butted with an interface on a transfusion container; due to a diaphragm in the interface and the rotating sleeve, a medicine container and a medicating dual needle are in sealed states; therefore, an effect of absolute germfree transpiration and storage can be achieved; the rotating sleeve is rotated to drive the guide part to quickly move downwards and push the medicine container; the upper needle point of the medicating dual needle punctures a sealing plug on the medicine container, and a lower needle point punctures the diaphragm in the interface, so that the medicine container is instantly communicated with the interior of the transfusion container; and therefore, germfree sealing is realized in the whole process of transportation, storage, butting, medicine mixing and transfusion.

Description

technical field [0001] The invention relates to a medical device, in particular to a pushing device used on a dosing instrument used for mixing medicines. Background technique [0002] In order to add the medicine in the medicine container to the solution in the infusion container (i.e. infusion soft bag or infusion soft bottle), and then infuse the mixed solution into patients in clinical institutions such as hospitals. In the prior art, a drug dosing instrument is often used to connect the drug container with the infusion soft bag or the infusion soft bottle. [0003] The dosing instrument in the prior art mainly includes a drug mixing card body and a drug dosing double needle. The drug mixing card body forms a cup-shaped structure. For sealing, a diaphragm is provided on the bottom inner wall cross-section of the drug mixing card body, and a sealing film is provided on the top of the drug mixing card body. The upper sealing film corresponds. When in use, connect the dr...

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