Convergence type multi-head needleless injector
By designing a multi-head needleless injector with a confluence structure, the problem of inconsistent drug injection speed in existing needleless injectors is solved by utilizing a drainage column and a flow divider. This achieves consistent flow rate and uniform drug dispersion across multiple injection nozzles, thereby improving injection efficiency and stability.
CN224370383UActive Publication Date: 2026-06-19广东美特智能工具有限公司
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Patent Information
- Application Number
- CN202521292500.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-06-18
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-19
- Estimated Expiration
- 2035-06-23
AI Technical Summary
Technical Problem
Existing needle-free injectors cause inconsistent drug spray speeds during the switching process between the injection head and the supply end, affecting the drug's effectiveness.
Method used
A multi-nozzle needleless injector with a flow channel and a flow divider structure was designed. It injects simultaneously through multiple nozzles. The design of the flow divider and the flow merger ensures that the flow rate of each nozzle is consistent. The spring and the buffer chamber reduce vibration and noise.
Benefits of technology
It achieves consistent flow rate across multiple injection nozzles, improves injection efficiency, avoids drug deposits and dirt, ensures uniform dispersion of drug components, and reduces noise and vibration after prolonged use.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the field of medical instruments, and particularly discloses a confluence type multi-head needleless injector, which comprises a liquid passing main body, an injection head and a liquid supply mechanism, a liquid passing cavity is arranged in the liquid passing main body, a liquid pushing plug is arranged in the liquid passing cavity, and the injection head is arranged at the front end of the liquid passing main body and is provided with more than three injection nozzles; the liquid supply mechanism is arranged on one side of the liquid passing main body; the injection head is provided with a first valve cavity, the first valve cavity is separated from the liquid passing cavity through a partition plate, and a communicating hole is formed in the partition plate; a first valve element is arranged in the first valve cavity, the liquid supply mechanism is provided with a second valve cavity, and a second valve element is arranged in the second valve cavity; the first valve element comprises a flow dividing disc and a flow guiding column, a flow dividing cavity is formed in the front face of the flow dividing disc, and the flow guiding column is provided with a conical part, a converging flow channel and a flow dividing channel. According to the utility model, a plurality of injection nozzles can be used for simultaneous injection, the efficiency is improved, and the flow velocity of each injection nozzle is consistent.
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