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injector

A technology of injector and sealing part, applied in the field of injector, can solve the problem of difficulty in popularization

Active Publication Date: 2022-03-18
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the reproducibility of injection volume and depth of injection liquid is not good, it is difficult to say that the needle-free injector having a conventionally known structure is widely used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] here, figure 1 It is a figure which shows the schematic structure of the syringe 1 of Example 1, and is also a cross-sectional view of the syringe 1 along the longitudinal direction. also, figure 1 The illustrated syringe 1 is in a state before an ignition unit 10 and the like described later are actuated. The syringe 1 is configured by disposing the injection tube part 40 on the front end side of the syringe body 30 , and disposing the ignition part 10 and the reservoir part 20 on the base end side of the syringe body 30 . In addition, in the following descriptions of this application, the injection liquid administered from the syringe 1 to the target area is formed by containing a predetermined substance that exhibits the desired efficacy or function in the target area in the liquid medium. In this injection, the predetermined substance may be dissolved in the liquid as the medium, or it may be not dissolved but merely mixed.

[0042] For example, as the given subs...

Embodiment 2

[0063] based on image 3 Now, the syringe 1 according to the second embodiment will be described. image 3 The injector 1 is shown in a state before the ignition part 10 etc. are actuated. Additionally, for image 3 In the configuration of the syringe 1 of the present embodiment shown and about figure 1 The configurations of the illustrated syringe 1 are substantially the same and assigned the same reference numerals, and thus detailed description thereof will be omitted. image 3 The syringe 1 of the present embodiment shown with figure 1 The syringes 1 shown differ mainly in the configuration of the reservoir 20 . In this embodiment, the accumulation unit 20 has a cylindrical accumulation unit main body 21, a plate member 25 as a metal plate, and a metal shear pin (Sheapin) 38, and the accumulation unit main body 21, the plate member 25, and the driving piston The second trunk part 32c (O-ring 32e) of the 32 defines a filling space 24' inside the storage part 20 into wh...

Embodiment 3

[0078] based on Figure 6 Now, the syringe 1 according to the third embodiment will be described. Figure 6 The injector 1 is shown in a state before the ignition part 10 etc. are actuated. Additionally, for Figure 6 In the configuration of the syringe 1 of the present embodiment shown and about Figure 5 The configurations of the illustrated syringe 1 are substantially the same and assigned the same reference numerals, and thus detailed description thereof will be omitted. Figure 6 The syringe 1 of the present embodiment shown with Figure 5 The injectors 1 shown differ in the configuration for transferring the compressed gas from the filling container 50 to the filling space and the presence or absence of the shear pin 38 in the reservoir 220 .

[0079] In the present embodiment, if the filling container 50 is mounted on the filling container mounting portion 229, the opening of the filling container 50 is inserted into the filling passage 327 communicating with the fi...

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PUM

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Abstract

The injector of the present invention includes: an encapsulation part that encapsulates a substance to be injected; a first imparting part that burns the ignition powder to release the combustion product, thereby imparting primary injection energy to the substance of interest enclosed in the encapsulation part; energy; An accumulation part that accumulates energy that should be further imparted to the injection target substance as energy different from the primary injection energy imparted by the first imparting portion; and a second imparting portion that releases the energy by the released combustion product The energy stored in the storage part is thereby given to the injection target substance by using the released energy as secondary emission energy. With this configuration, it is possible to appropriately reach the target region without affecting the injected injection target substance.

Description

technical field [0001] The present invention relates to an injector for injecting an injection target substance into a target area. Background technique [0002] As an injector for injecting an injection solution into a target area, a needle-free injector for injecting without passing through an injection needle can be exemplified. In this needle-free syringe, the injection liquid may be ejected by applying pressure to a storage chamber containing the injection liquid. However, since the reproducibility of the injected amount and depth of the injection liquid is not good, it is hard to say that the needle-free injector having a conventionally known structure is widely used. [0003] Then, there is disclosed a technique for adjusting the injection pressure of an injection liquid in multiple stages by using a propellant charge composed of two powder mixtures of a high-speed combustion powder and a low-speed combustion powder (for example, refer to Patent Document 1). Specifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/303A61M5/307
CPCA61M5/30A61M5/2046
Inventor 伊贺弘充山本裕三
Owner DAICEL CHEM IND LTD