Spring type needleless injector with safety locking function

• Main Authors: XU HAOYU, WANG JIAN, ZHANG CHENGSEN, WANG ZHIZHI, SHI TIELIN, WANG HAORAN, XIONG LIANGCAI
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2023
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model discloses a spring type needleless injector with a safe locking function. The spring type needleless injector comprises a rear shell, a front shell, a button mechanism, a locking mechanism, a pressurizing mechanism, an injection push rod and a clamping table. The rear end of the pressurizing mechanism is nested in the rear shell, and the front end of the pressurizing mechanism is nested in the front shell; the clamping table is in threaded connection with the rear end of the pressurizing mechanism, the injection push rod penetrates through an inner hole of the clamping table and extends into the pressurizing mechanism, a plurality of slotted holes are formed in the circumferential direction of the clamping table, balls are placed in the slotted holes, and grooves matched with the slotted holes are formed in the injection push rod; the button mechanism is arranged at the rear end of the clamping table in a sleeving mode, and the locking mechanism is installed on the rear shell and used for lo