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Syringe cap, syringe assembly, and prefilled syringe

A technology for a syringe and a main body is applied in the fields of syringe caps, syringe assemblies and pre-filled syringes, and can solve the problem that the visual recognition part cannot perform visual recognition.

Active Publication Date: 2021-10-29
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the visual recognition department is virtually unable to perform visual recognition

Method used

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  • Syringe cap, syringe assembly, and prefilled syringe
  • Syringe cap, syringe assembly, and prefilled syringe
  • Syringe cap, syringe assembly, and prefilled syringe

Examples

Experimental program
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Embodiment Construction

[0020] Hereinafter, the syringe cap, the syringe assembly, and the prefilled syringe of the present invention will be described with reference to preferred embodiments and with reference to the drawings. In the following description pertaining to prefilled syringes and their constituent elements, the figure 1 The left side is called the "front end" and the right side is called the "base end".

[0021] Such as figure 1 As shown, the prefilled syringe 12 includes a syringe body 14 and a syringe cap 10 (hereinafter sometimes simply referred to as “cap 10 ”) that can be attached to and detached from the syringe body 14 . The syringe body 14 includes a syringe barrel 16 , a gasket 18 slidably inserted into the syringe barrel 16 , and a plunger 20 connected to the gasket 18 . In the present embodiment, the syringe assembly 22 is constituted by the syringe outer cylinder 16 and the cap 10, and the gasket 18 to which the plunger 20 is connected is inserted into the syringe assembly ...

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PUM

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Abstract

A syringe assembly (22) of a prefilled syringe (12) comprises a syringe cap (10). A tapered portion (86) of a second tubular portion (102) that constitutes the cap (10) has, on the outer peripheral surface of the tapered portion (86), a plurality of step portions (88) continuously arranged along the central axis (Ax) of a cover member (36) so that the amount of protrusion of the tapered portion (86) increases in a stepwise manner from the outer peripheral surface of an annular peripheral wall portion (80) toward the vicinity of the outer edge of an aperture (58) in a first tubular portion (100).

Description

technical field [0001] The present invention relates to a syringe cap, a syringe assembly, and a prefilled syringe that can be attached to and detached from a syringe body that includes a body portion capable of accommodating medicines therein, and a body portion extending from the front end portion of the body portion toward the front end. A nozzle part that protrudes and has a drug discharge port at the front end. Background technique [0002] For example, International Publication No. 2018 / 061948 discloses a cap for a syringe including a cap main body and a cylindrical cover member covering the cap main body. The cap main body has an attachment portion that can be attached to the nozzle portion of the syringe main body, and a viewing portion located on the front end side of the attachment portion. The cover member includes a substantially opaque first cylindrical portion, and a substantially transparent second cylindrical portion extending toward the front end from the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/31A61M5/28
CPCA61M5/28A61M5/3134A61M2005/3104A61M5/5086A61M39/20A61M2005/3106A61M5/3202
Inventor 冲原等
Owner TERUMO KK
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