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Syringe with integrally formed piercing member and luer slip

A technology for syringes and components, applied in the field of syringes, can solve the problems of time-consuming, pollution, etc., and achieve the effects of being easy to use, reducing the risk of pollution, and reducing the risk of incorrect injection

Inactive Publication Date: 2013-03-27
STAR SYRINGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Again, the process is somewhat manual and time-consuming, and carries a risk of contamination

Method used

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  • Syringe with integrally formed piercing member and luer slip
  • Syringe with integrally formed piercing member and luer slip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The syringe shown in the figures comprises a barrel 1 in which a piston 2 works and with which a piercing element 3 is integrally formed.

[0015] The cartridge 1 is substantially cylindrical, having a main cylinder 4 with a cylindrical inner surface 5 in which the piston 2 slides sealingly. The proximal end 6 of the barrel 1 is open and provided with a gripping flange 7 . The distal end of the barrel 1 has a reduced diameter portion 8 with a step between the main cylinder 4 and the reduced diameter portion 8 forming an inner abutment shoulder 9 . In a standard syringe, the reduced diameter portion 8 will have an open end to define the liquid outlet, onto which a metal needle will be mounted in any suitable manner. Examples of mounting are eg luer slips (which hold the needle frictionally fitted), luer locks onto which the needle is threadedly mounted, or permanent mounting secured by glue or the like. In the syringe of the invention, the reduced diameter portion 8 is...

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PUM

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Abstract

A syringe for use in vaccine reconstitution or rehydration has a barrel (1) having a plunger (2) in slidable and sealing engagement therein, and a piercing member (3) formed integrally with the barrel. The piercing member (3) has a bore (10) in communication with the distal end of the barrel, and a piercing point (12) and aperture (13) at its distal end. The distal end of the piercing member (3) has an external taper which comprises a male luer part (15) compatible with an infusion set. The length of the distal end of the piercing member (3) distally of a predetermined attachment diameter of the male luer part (15) is chosen so that it cannot fit a standard metal syringe needle, as the end of the piercing member (3) engages with another part of the metal needle before the female luer part on the needle reaches the attachment diameter. The syringe is easy to use for rehydration, but cannot be used for normal injections.

Description

technical field [0001] The present invention relates to syringes, and more particularly to syringes for reconstitution or rehydration. Background technique [0002] For reconstitution of anhydrous vaccines, a specified amount of diluent is used to reconstitute the shrunk vaccine provided in a container sealed by a rubber septum. The septum is pierced by the metal needle of a syringe containing diluent, which is then injected into the container to reconstitute the dry vaccine. A number of other syringes (typically ten) are then used to pierce the septum again to withdraw the correct amount of reconstituted vaccine for injection. Repeated puncturing tends to tear the septum, which could lead to leakage of the vaccine, and / or possible contamination. Optionally the metal needle for the syringe pierces the septum once and then the needle stays inside while separating the syringe bodies to allow more syringe bodies to be attached sequentially to draw the correct amount of vaccin...

Claims

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Application Information

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IPC IPC(8): A61M5/178A61M5/31A61J1/20A61M5/315A61M5/32A61M5/50
CPCA61M5/3134A61M5/329A61J2001/201A61J1/2096A61M2005/3114A61M2005/31516A61M5/502A61M5/1782A61J1/201
Inventor M·A·科斯卡G·J·马丁
Owner STAR SYRINGE
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