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Prefilled syringe

A syringe and pre-filling technology, applied in the field of syringes, can solve the problems of high cost and high cost of insulating packaging materials, and achieve the effects of reducing the amount of waste, improving packaging efficiency, and preventing the invasion of bacteria

Active Publication Date: 2008-08-20
NIPRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, barrier packaging materials are expensive, which can lead to high cost when using barrier packaging materials in blister packs or pillow packs.
In addition, in order to remove moisture and oxygen in the package, silica gel or E-Giles (registered trademark) (deoxidizing material) must be enclosed at the same time, which also has a problem of high cost.

Method used

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Examples

Experimental program
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Embodiment Construction

[0064] Next, an embodiment of the prefilled syringe of the present invention will be described in detail with reference to FIGS. 1 to 8 .

[0065] First, a first embodiment of the prefilled syringe of the present invention will be described with reference to FIG. 1 . Fig. 1 shows a prefilled syringe 1A covering a range filled with a medicament by an insulating packaging material, (a) shows a plan view, and (b) shows a side sectional view.

[0066] The prefilled syringe 1A is provided with a syringe barrel 2 filled with a medicament 10 and a plunger 3 . The plunger 3 is provided with a plunger rod 31 and a packing 32 on the front end of the plunger rod 31 . The syringe barrel 2 is provided with a nozzle portion 20 to which an injection needle or the like can be attached, and an opening portion 22 through which the above-mentioned plunger 3 can freely advance and retreat. In addition, the periphery of the protruding end of the above-mentioned opening portion 22 protrudes to fo...

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PUM

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Abstract

The present invention provides a prefilled syringe filled with medicines in advance, which can prevent liquid leakage from the cap, and can make the entire surface of the barrel part and the shoulder part filled with medicines gas-barrier to prevent deterioration of medicines, And highly prevent the invasion of bacteria, at the same time, forming a compact packaging body can improve packaging efficiency. A flange-like extension (21) is provided by protruding from the outer peripheral portion of the shoulder of the syringe barrel on the side of the nozzle, and the outer surface of the syringe barrel (2) filled with the drug is covered with an insulating packaging material (6). The range from the portion of the plunger (3) where the plunger liner (32) is located to the flange-like extension (21).

Description

technical field [0001] The present invention relates to a syringe, and more particularly to a prefilled syringe which is filled with medicine and can immediately inject a patient with only an injection needle. Background technique [0002] Conventionally, a syringe in which a drug is preliminarily sealed in a syringe barrel, that is, a so-called prefilled syringe is known. This type of prefilled syringe has a nozzle portion on which an injection needle is mounted at one end of a syringe barrel forming the main body of the syringe, and an opening at the other end through which a plunger provided with a gasket at the tip of the plunger rod can freely advance and retreat. After filling the medicine, the mouthpiece is usually covered with a cap made of rubber to prevent medicine leakage, and at the same time, the whole is blister-packed or pillow-packed with the plunger attached. [0003] In addition, there has been proposed a patent application for a syringe filled with a medi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/28A61M5/00
CPCA61M5/28A61M5/001A61M5/002A61M5/3145A61M2005/3104A61M2005/3117
Inventor 岩佐昌畅难波良平长谷川满村井庆久
Owner NIPRO CORP
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