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Disposable device for ejecting a liquid or pasty product

A product, pasty technology, applied in the field of manufacturing and distributing said devices, which can solve problems such as compromised device effectiveness, limited assembly, poor strength, etc.

Active Publication Date: 2013-11-13
PRIMEQUAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite the great simplification achieved and the presence of removable levers for easy cleaning, the device is not always satisfactorily hygienic and always requires a delicate cleaning stage
In addition, the realization of a detachable connection between the rod and the body of the device impairs the effectiveness of the device, since this connection results in a weak rod that is subjected to high forces when injecting
Finally, the solution described above requires at least a partial pre-assembly before its distribution, otherwise its assembly would be too limited due to the number of device components

Method used

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  • Disposable device for ejecting a liquid or pasty product
  • Disposable device for ejecting a liquid or pasty product
  • Disposable device for ejecting a liquid or pasty product

Examples

Experimental program
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Effect test

Embodiment Construction

[0040] According to a preferred embodiment, the injection device according to the invention is based on the assembly of four separate main elements whose shape allows them to be manufactured from plastic materials by simple injection methods and which can therefore be manufactured according to Figures 1a to 1d The steps shown make it very easy to assemble these components.

[0041] exist Figure 1aIn a first step shown, the rod 1 is assembled with the rear body 2b. The lever 1 comprises a horizontal upper part intended to be steered and a lower end in the form of a shaft 5 positioned in a corresponding zone 6 of the rear body 2b. In addition, the claw 4 is connected with the rod 1 in an integral structure, and the claw 4 extends toward the bottom and inside of the rear body 2b.

[0042] exist Figure 1b In the second step shown, the front part of the body of the device, i.e. the container frame 2a, is assembled on the front end of the previously obtained assembly by fitting...

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PUM

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Abstract

Device for ejecting a liquid or pasty product, comprising a body (2) that has a portion (2a) designed to contain the product to be ejected and that has a hole (13) for ejecting the product, a rack (3) that moves in a bore (20) in the body (2) and causes the volume of the portion (2a) designed to contain the product to vary, and a rack (3) movement mechanism comprising a pivoting lever (1) and a pawl (4) for acting on the rack (3), which device is characterized in that the pawl (4) and the lever (1) form a one-piece plastics structure.

Description

technical field [0001] The present invention relates to a device for dispensing liquid or pasty products, and methods of manufacturing and dispensing said device. Background technique [0002] Known patent application FR 2 535 206 proposes a dental syringe for intraligament injections. The syringe injects the product through a very thin, flexible needle into the ligament between the jawbone and the teeth. The syringe mainly includes: an elongated main body on which a mechanism for controlling injection by moving a push column is installed; a container frame in which a container filled with a liquid to be injected is arranged; connector. To solve the problem of difficult access to the injection delivery area, the syringe body has an injection head that forms an angle with the axis of the syringe body. The detachable needle is mounted on the main body before the injection and is removed after the injection. The mechanism controlling the injection consists essentially of a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/315A61M5/34A61M5/24A61M5/31
CPCA61M5/31595A61M2005/2407A61M5/3129A61M5/31581A61M2005/341A61M5/24A61M2005/2492A61M5/315
Inventor D·魏尔P-Y·沙索
Owner PRIMEQUAL SA
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