一种手动激发保护机构的注射装置
By designing an injection device with a manually activated protective mechanism, the needle automatically retracts into the outer shell, solving the problems of lost needle sheaths and finger injuries, and improving safety and stability in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DOLPHIN MEDICAL TECHNOLOGY (SUZHOU) CO LTD
- Filing Date
- 2025-03-10
- Publication Date
- 2026-07-17
AI Technical Summary
Disposable syringes are prone to losing their caps after use, and there is a risk of pricking fingers when re-capping them, posing a safety hazard.
An injection device with a manually activated protective mechanism was designed. Through the cooperation of the bracket and the outer shell, the needle is automatically retracted into the outer shell. Combined with anti-slip ridges and stabilizing protrusions, the sliding stability and safety are improved.
It effectively prevents accidental needle exposure, reduces the risk of user injury, and improves safety and stability after use.
Smart Images
Figure CN224506015U_ABST
Abstract
Claims
1. An injection device with a manually activated protection mechanism comprising a syringe (3), characterized in that The syringe (3) is coaxially fitted with a bracket (2), and the bracket (2) is coaxially fitted with a housing (1). The bracket handle (203) of the bracket (2) extends out to several syringe fixing arms (204) that together hold the syringe (3). The round end of the bracket (2) is provided with several elastic arms (202) that are squeezed and deformed by the filled syringe (3), and each squeezed and deformed elastic arm (202) is partially slidably inserted into a linear groove (103) that matches the elastic arm (202). The housing (1) is provided with several through slots parallel to its own axis. Each through slot is provided with a first elastic latch (101) at one end away from the bracket handle (203), and a second elastic latch (102) at the other end of each through slot. The round end of the bracket (2) is provided with a fixing protrusion (201) that matches the first elastic latch (101) and the second elastic latch (102).
2. An injection device with a manually activated safety mechanism according to claim 1, wherein, The sidewall of the first elastic latch (101) is provided with a protrusion that locks the fixing protrusion (201), and the fixing protrusion (201) is provided with an oblique angle that guides the movement in the direction of disengaging from the first elastic latch (101).
3. An injection device with a manually activated safety mechanism according to claim 1, wherein, The second elastic latch (102) is provided with two elastic grippers that are adapted to be fixed protrusions (201) and can be moved and engaged.
4. An injection device with a manually activated safety mechanism according to claim 1, wherein, The inner wall of the outer shell (1) near the support handle (203) extends a number of stable protrusions (104) that fit the outer wall of the support (2). The outer wall of the support (2) extends an arc-shaped strip (205), and before the injection device is manually activated, the arc-shaped strip (205) and the support handle (203) together hold the stable protrusions (104).
5. An injection device with a manually activated safety mechanism according to claim 1, wherein, The side of the syringe fixing arm (204) away from the support handle (203) is an arc-shaped spring, and each end of the arc-shaped spring side of the syringe fixing arm (204) is provided with a claw that adapts to the protrusion of the edge of the syringe (301).
6. The injection device for a manually activated protection mechanism according to claim 1, characterized in that, The outer wall of the outer shell (1) is provided with a first anti-slip texture (105), and the bracket handle (203) is provided with a second anti-slip texture (206) on the side near the fixing protrusion (201).