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Method of assembling medicament injection device

A technology of injection device and assembly method, which is applied in the direction of container discharge method, syringe, medicine equipment, etc., can solve the problem of reduced strength of welded parts, and achieve the effect of preventing strength

Inactive Publication Date: 2013-05-22
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, if heat-generating sterilization treatment is performed on a member subjected to high-frequency welding, heat will be applied to the welded part again, so the strength of the welded part may decrease.

Method used

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  • Method of assembling medicament injection device
  • Method of assembling medicament injection device
  • Method of assembling medicament injection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Below, refer to figure 1 and figure 2 Embodiment examples of the drug injection device of the present invention will be described. In addition, in each drawing, the same code|symbol is attached|subjected to a common member. Furthermore, the present invention is not limited to the following aspects.

[0028] In addition, description will be given in the following order.

[0029] 1. Structural Example of Drug Injection Device

[0030] 2. Assembly method of drug injection device

[0031] 1. Example of the structure of the drug injection device

[0032] First, refer to figure 1 An embodiment example (hereinafter, referred to as "this example") of a prefilled syringe suitable for use as the drug injection device of the present invention will be described.

[0033] figure 1 is a sectional view showing the prefilled syringe of this example.

[0034] The prefilled syringe 1 of this example stores in advance a drug M to be administered to a living body. like fi...

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Abstract

Provided is a method of assembling a medicament injection device (1) comprising the following steps: a step of integrally securing a needle tube (3) and a needle hub (4) together by high-frequency welding; a step of radiation sterilizing the needle tube (3) and the needle hub (4); a step of performing sterilization treatment which generates heat to a housing (2) into which medicament (M) is filled; a step of aseptically transporting the needle hub (4) which has been subjected to radiation sterilization into an isolator device (H); a step of securing the needle hub (4) and the housing (2) together under a sterile environment in the isolator device (H); and a step of filling the housing (2) to which the needle hub (4) is secured with the medicament (M) under a sterile environment.

Description

technical field [0001] The invention relates to an assembly method of a medicine injection device in which a needle tube and a needle hub are fixed together by high-frequency welding. Background technique [0002] In recent years, a drug injection device in which a drug is previously filled in a syringe as a storage container has been widely used (for example, refer to Patent Document 1). In the drug injection device described in Patent Document 1, a double-ended needle held on a needle hub is attached to an outer cylinder filled with a drug in advance. [0003] In addition, prefilled syringes with needles are also used. Next, refer to image 3 A conventional prefilled syringe having a needle tube will be described. [0004] image 3 It is a sectional view showing a conventional prefilled syringe. [0005] like image 3 As shown, the prefilled syringe 100 has an outer cylinder 102 as a storage container for storing the medicine M, a needle tube 103 , a needle hub 104 , a ...

Claims

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Application Information

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IPC IPC(8): A61M5/158A61M5/28
CPCA61M5/001F17C13/00A61M2005/3109A61M5/343A61M5/28A61M5/348B65B3/003A61M5/3293F17C13/06A61M2207/00A61M5/3202A61M5/1782B65B55/06B65B55/08B65B7/2821
Inventor 立川浩一小川淳一
Owner TERUMO KK
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