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Special-shaped core pole of injector

A syringe and special-shaped technology, which is applied in the field of medical devices, can solve problems such as monotonous structures, and achieve the effects of reducing waste, reducing costs, and reducing residual flow

Inactive Publication Date: 2006-02-08
陈嘉农
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are mainly two types of syringes on the market now, one is a three-piece set mainly composed of a jacket, a core rod and a rubber piston; the other is a two-piece set mainly composed of a jacket and a core rod; a three-piece syringe And the shafts of the core rods of the two-piece syringes are all cross-wing structure shafts, the structure is monotonous, and there is no new structure for decades

Method used

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  • Special-shaped core pole of injector
  • Special-shaped core pole of injector
  • Special-shaped core pole of injector

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Referring to Fig. 1 to Fig. 4, the material used for the special-shaped core rod of the syringe in this embodiment complies with the national standard. The special-shaped core rod 10 of this embodiment includes a shaft 11, a handle 12 and a top 13; the shaft 11 of the special-shaped core rod 10 is a shaft with a special-shaped structure, and the shaft 11 of the special-shaped core rod 10 has an H shape. The shaft of the wing; the top 13 of the special-shaped core rod 10 is also provided with a neck 131 and a head 132; see Fig. 4, the materials used in the syringe using the special-shaped core rod 10 of this embodiment meet the national standard; The syringe of example has special-shaped core rod 10, overcoat 20, cone 21, piston 30; 12 and the top 13, the shaft 11 of the special-shaped core rod 10 is a shaft with H-shaped fins; the top 13 of the special-shaped core rod 10 is also provided with a neck 131 and a head 132; the piston 30 is sleeved On the neck 131 and the h...

Embodiment 2

[0042] See Fig. 5 to Fig. 7, the shaft 11 of the special-shaped core rod 10 of the present embodiment syringe is the shaft with Y-shaped fins; the three included angles of the Y-shaped fins of the shaft 11 of the special-shaped core rod 10 are all is 120°. All the other are identical with embodiment 1.

Embodiment 3

[0044] See Figure 8 to Figure 9 , the shaft 11 of the special-shaped core rod 10 of the present embodiment syringe is a shaft with T-shaped fins; the top 13 of the special-shaped core rod 10 is also provided with a neck 131 and a head 132; the special-shaped sealing ring 31 is sleeved on On the neck 131 and head 132 of the top 13 of the special-shaped mandrel 10; when injecting, the special-shaped sealing ring 31 is pushed to the top by the special-shaped mandrel 10 to complete the injection; on the head of the top 13 of the special-shaped mandrel 10 132 is also provided with a protruding rod 133, and the outer diameter of the protruding rod 133 is smaller than the inner diameter of the taper hole 22 of the syringe, so as to reduce the residual flow of the liquid medicine. All the other are identical with embodiment 1.

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Abstract

The invention relates to a special-shaped core rod of injector, comprising a rod, a pressing hand and a top part. Wherein, the rod is specially shaped in the form as H-form blade, Y-form blade, T-form blade, K-form blade, N-form blade, V-form blade, U-form blade, or the blade with a plurality of word form; a neck part and a hand part are mounted on the top part of special-shaped core rod; a projection rod is arranged on said hand part; and a breakable structure is arranged on the rod of said special-shaped core rod. Said invention has reasonable structure, simple process, and reliable property, so it is a practicable special-shaped core rod of injector.

Description

technical field [0001] The invention relates to a core rod of a syringe and belongs to the field of medical instruments. Background technique [0002] There are mainly two types of syringes on the market now, one is a three-piece set mainly composed of a jacket, a core rod and a rubber piston; the other is a two-piece set mainly composed of a jacket and a core rod; a three-piece syringe And the shafts of the core rods of the two-piece syringe are all the shafts of the cross fin structure, the structure is monotonous, and there is no new structure for decades. Contents of the invention [0003] The object of the present invention is to provide a special-shaped core rod of a syringe. [0004] Technical solution of the present invention: the special-shaped core rod includes a shaft, a handle and a top; the shaft of the special-shaped core rod is a shaft with a special-shaped structure, and the shaft of the special-shaped core rod is a shaft with H-shaped fins , or the shaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315
Inventor 陈嘉农
Owner 陈嘉农
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