Syringe assembly having reuse prevention features

A technology of stopper and seal, which is applied to hypodermic injection devices, devices introduced into the body, needles, etc., can solve the problem of increasing the number of people who are immunized

Inactive Publication Date: 2010-01-13
BECTON DICKINSON & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, large-scale immunization campaigns usually take place in developing countries with limited resources, so if the cost of syringes falls, the number of people immunized will increase

Method used

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  • Syringe assembly having reuse prevention features
  • Syringe assembly having reuse prevention features
  • Syringe assembly having reuse prevention features

Examples

Experimental program
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Embodiment Construction

[0033] Before describing a few exemplary embodiments of the invention, it is to be understood that the invention is not limited to the details of construction or working steps presented in the ensuing description. The invention is also capable of other embodiments and of being practiced or carried out in various ways.

[0034] For purposes of describing the present invention, the term "distal end" refers to the end furthest from a user holding the syringe assembly, while the term "proximal" refers to the end closest to the holder of the syringe.

[0035] An operable syringe assembly 20 with a re-use prevention feature includes a barrel 21 including a cylindrical side wall 22 with an inner surface 23 defining a chamber 25 for containing fluid. The barrel also includes an open proximal end 27 and a distal end 28 including a distal wall 29 having a channel 31 in fluid communication with the chamber. The sidewall also includes a discontinuity 24 on the inner surface, such as Fi...

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PUM

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Abstract

Medical devices and syringes having reuse prevention features and methods of use thereof are provided. According to one or more embodiments, the syringe includes a barrel and a plunger rod including a stopper and an end wall with at least one portion that is removably engaged with the plunger rod, which prevents the creation of a vacuum between the stopper and barrel. One or more embodiments pertain to a single-use syringe which has a means for separating the plunger rod to prevent disassembly of the syringe prior to use. Methods of using a syringe according to embodiments of the present invention include an aspirating and expelling cycle followed by applying a force to the plunger rod in the distal direction to disable the stopper and prevent the creation of a vacuum between the stopper and syringe barrel.

Description

[0001] Cross Reference Related Applications [0001] This application claims the benefit of U.S. Provisional Application No. 60 / 888,166, filed February 5, 2007, and U.S. Patent Application Serial No. 12 / 026,173, filed February 5, 2008, which disclose The contents are hereby incorporated by reference. technical field [0002] The present invention relates to syringe assemblies, and more particularly to syringe assemblies having re-use prevention features, and methods of use thereof. Background technique [0003] Worldwide, the multiple use of hypodermic syringe products designed for single use only is a pathway that facilitates the spread of drug abuse and infectious diseases. Intravenous drug users who frequently share and reuse syringes are at high risk for the AIDS virus. Furthermore, the effects of multiple use have received widespread attention in countries where the repeated use of syringe products in mass immunization campaigns may be responsible for the spread of ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/00
CPCA61M2005/342A61M5/508
Inventor R·凯扎R·奥德尔
Owner BECTON DICKINSON & CO
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