Unlock instant, AI-driven research and patent intelligence for your innovation.

Medical syringe

A technology of syringes and injection heads, which is applied in the field of medical syringes and can solve problems such as no anti-rotation measures

Inactive Publication Date: 2004-05-26
SCHOTT AG
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But did not mention such anti-rotation measure in above-mentioned prior art, but mentioned in US 4711637

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medical syringe
  • Medical syringe
  • Medical syringe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Figure 1-Figure 3 The syringe is a standard prefilled syringe, which has a barrel 1 on which an injection tip 1a is integrally formed. In this example, a Luer cone or a Luer lock socket for a lockable conical connection is formed as a connecting element, but it is also possible to integrate the injection needle directly in the injection head.

[0028] On the opposite open end of the needle tube 1, a DIN finger pad 4 is integrally formed. In addition, the open end of the filled syringe is closed in a manner not shown by a piston made of elastic material with an outer sealing lip, a standard piston rod with a cross-section and plate-shaped finger contact surfaces Screw into the piston. In order to enable the piston to slide well on the inner wall of the needle tube 1 during use, the inner wall has an inner siliconized layer.

[0029] The basic structure of medical syringes is well known.

[0030] In order to ensure anti-rotation and backstop functions, the present inv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The syringe is formed according to DIN ISO 11040 and has a syringe barrel with a syringe head formed on one end and a grip plate formed at the other open end. An elastomeric piston stopper is insertable in this open end, which is movable back and forth and which has a cruciform-cross-sectioned piston rod screwed into it. A stop element, which reduces the interior diameter of the syringe barrel, is provided at the open end of the syringe barrel to perform a back-stop function, i.e. to prevent unintended withdrawal of the piston stopper. For this purpose a plastic part connected to the grip plate is provided with snap catches, which snap onto the inner side of the syringe barrel. These snap-catches prevent the piston rod from being rotated out of the piston stopper and the piston stopper from being withdrawn from the syringe barrel. At the same time the finger support is enlarged.

Description

technical field [0001] The present invention relates to a medical injector, which comprises: a needle tube made of glass or plastic, the needle tube has an integrally formed injection head, an injection needle is integrally formed in the injection head, or the injection head has a luer ( Luer) connecting cone, the needle tube has a finger touch disc at the open end; an elastic piston, which can be contained in the needle tube and has a blind hole thread for screwing into a piston rod with a cross-section; Stop, which prevents the piston from being accidentally withdrawn. Background technique [0002] For liquid pharmaceutical preparations for parenteral use, the use of ampoules and injection vials is well known. In order to inject the medicament contained in the vial, a medical syringe combined with a corresponding injection needle is required. This means that the liquid preparation needs to be transferred into a medical syringe before final use. This operation is not onl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/31A61M5/315
CPCA61M2005/3139A61M5/31501A61M5/31505
Inventor H·科勒M·施泰根伯格K·莫西曼T·卡杜尔
Owner SCHOTT AG