Extrusion medicine conveying mechanism and liquid medicine conveying device of double-cavity injector

By using a dual-extrusion cylinder structure and a servo motor-driven liquid delivery device, the problems of frequent adjustment and complex transfer mechanisms in existing technologies are solved, enabling convenient assembly, debugging, and efficient production, and ensuring medication safety.

CN224156112UActive Publication Date: 2026-04-24SHINVA MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202423309854.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-04-24
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing drug delivery devices suffer from problems such as frequent adjustments, long cleaning and disassembly times, the need for customized filling pumps for different viscosities, and overly complex transfer mechanisms, which affect production efficiency and drug safety.

Method used

It adopts a symmetrical double-extrusion cylinder structure, and the rotating part is driven by the drive component to realize the delivery of medicine. Combined with servo motor and lifting mechanism, the transfer mechanism is simplified, cross-contamination and shear force are avoided, and it can adapt to different filling volume requirements.

Benefits of technology

It achieves convenient assembly and debugging, improves production efficiency, ensures drug safety, avoids the impact of loose mechanical structure on filling accuracy, and simplifies the equipment structure.

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Abstract

The utility model discloses an extrusion medicine conveying mechanism and a liquid medicine conveying device of a double-cavity injector, and belongs to the technical field of liquid medicine conveying. The device is characterized in that the device comprises two rotating parts which are symmetrically arranged and a driving part which drives the two rotating parts to rotate, the two rotating parts are each provided with an extrusion cylinder (19), the two extrusion cylinders (19) are symmetrically arranged, and the two extrusion cylinders (19) revolve around rotating shafts of the rotating parts respectively; the medicine conveying hose passes through the two extrusion barrels (19), and the two extrusion barrels (19) move in a reciprocating mode in the arrangement direction of the medicine conveying hose. According to the extrusion medicine conveying mechanism and the medicine liquid conveying device of the double-cavity injector, the problems that in the prior art, adjustment is frequent, the cleaning and dismounting time is long, filling pumps needed by different viscosities are customized in a personalized mode, and a conveying mechanism is too complex are solved, and the effects that assembling is convenient and fast, debugging is convenient, and the production efficiency is improved are achieved; therefore, the medication safety is further ensured.
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