Container assembly for injection device and injection device
By introducing a locking structure into the container assembly of the injection device to prevent axial movement of the container and/or counting assembly, the problem of damage to the locking structure in the prior art after the number of uses of the injection device reaches a preset value, and the accuracy of each injection dose and the reuse of the injection body are achieved.
CN119680065APending Publication Date: 2025-03-25ATSENBO (SUZHOU) PHARM TECH CO LTD +1
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Patent Information
- Application Number
- CN202311228173.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-22
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
After the number of times of use of the existing injection device reaches a preset value, the locking structure may damage the injection body, resulting in the device being scrapped and the measurement is inaccurate.
Method used
A container assembly for an injection device is designed, including a locking structure to prevent the container from resetting by preventing the axial movement of the container and/or the counting assembly, ensuring the accuracy of the dose per injection and avoiding damage to the injection body.
Benefits of technology
The accuracy of the dose per injection is achieved, damage to the injection body is avoided, and the injection device can be reused.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a container assembly for a spraying device and the spraying device. The container assembly comprises a container; the counting mechanism comprises a counting assembly and a triggering piece, and one end of the container is inserted into the triggering piece and connected to the counting assembly; a locking structure; under external force, the container drives the counting assembly to axially reciprocate relative to the triggering piece; when the container is located at the initial position, the part, located outside the counting mechanism, of the container has a first length L1, and at least part of the part is located in a spraying body of the spraying device; and when the counting frequency reaches a preset value, the locking structure prevents the container and / or the counting assembly from axially moving, the part has a second length L2, and the second length L2 is smaller than the first length L1, so that the container cannot be reset to the initial position, and locking is achieved. According to the container assembly and the locking structure, the container and / or the counting assembly are / is prevented from axially moving, so that the container cannot be inserted into the spraying main body in place, the container is prevented from resetting, and the container needs to be replaced.
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