Injection device
An injection device, sliding installation technology
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[0025] see figure 1 , In a preferred embodiment of the present invention, an injection device 100 includes a needle tube 10, a push rod 20 mounted on the needle tube 10 and capable of sliding in the needle tube 10, and a push rod 20 fixed on the needle tube 20 Piston 30 at one end. The injection device 100 is used for injecting a fluid. In one embodiment, the fluid may be a liquid with a relatively high viscosity. Further, the fluid may be a liquid such as vegetable oil, honey, or glycerin.
[0026] The needle tube 10 is substantially cylindrical and includes a bottom wall 11 and a side wall 13 surrounding the bottom wall 11 and vertically connected to the bottom wall 11 . The bottom wall 11 and the side wall 13 jointly define a storage space 15 for storing liquid, and the push rod 20 and the piston 30 are slidably installed in the storage space 15 . The bottom wall 11 is provided with a needle hole 12 , and the fluid in the receiving space 15 can be discharged from the need...
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