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An injection system comprising a syringe and a protective assembly

An injection system and syringe technology, applied in the directions of syringes, ampoule syringes, hypodermic injection devices, etc., can solve the problems of difficult use of injection systems, not always satisfying users, etc., and achieve the effect of facilitating the injection process and reducing fear

Active Publication Date: 2020-09-22
BECTON DICKINSON FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although known injection systems are generally satisfactory, they do not always meet all expectations of users
In particular, injection systems can be quite difficult to use when they require a succession of different hand movements for the penetration and injection steps

Method used

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  • An injection system comprising a syringe and a protective assembly
  • An injection system comprising a syringe and a protective assembly
  • An injection system comprising a syringe and a protective assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] The present invention relates to an injection system 1 comprising a syringe 2 and a protective assembly 10 specially designed to prevent needlestick injuries.

[0085] The syringe 2 comprises a barrel 3 designed to contain a medicament to be injected into the patient. The barrel 3 has a distal end equipped with a needle 4 and a proximal end comprising a flange 5 which may generally project radially outwards. A plunger rod 6 is inserted into the barrel 3 for expelling the drug distally through the needle 4 . The plunger rod 6 comprises a distal plug 7 and a proximal member 8, which is generally disc-shaped to allow the user to push the plunger rod 6 distally.

[0086] The protection assembly 10 basically comprises a body 11 receiving the syringe 2 and coupling means 30 arranged inside the body 11 .

[0087] In use, the injection system 1 , syringe 2 and protective assembly 10 have a common axis 9 .

[0088] The body 11 is preferably cylindrical. Subject 11 includes: ...

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PUM

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Abstract

A protective assembly (10) comprises: a body (11) for receiving the syringe (2); a coupling device (30) inside the body, rigidly connected to the barrel (3) as regards axial movement relative to the body, the coupling device comprising an attaching element or attaching means (32) which can be either in an engaged state to axially fix the coupling device and the plunger rod, or in a release state in which the coupling device and the plunger rod are axially free relative to one another. The coupling device is axially movable in the body: with the attaching element or attaching means in the engaged state, from a storage position to an injection position in which the needle (4) extends beyond the body, and in which the attaching element or attaching means can move towards the release state, and with the attaching element or attaching means in the engaged state, from the injection position towards a safety position, in which the needle is covered by the body.

Description

technical field [0001] The invention relates to a protective assembly for a syringe, to an injection system comprising a syringe and such a protective assembly, and to a method for operating such an injection system. Background technique [0002] Some diseases, such as multiple sclerosis or arthritis, require regular (eg daily or weekly) injections of drugs into the patient. The drug is provided in the form of a pre-filled drug delivery device, such as a pre-filled syringe. [0003] Typically, patients are trained to self-inject and are enabled to administer the drug themselves. Nonetheless, injection systems are provided to make injections easier for patients. [0004] Thus, injection systems aim to ensure that injections are properly administered, increase safety especially with regard to accidental needle stick injuries, and reduce patient anxiety. [0005] Although known injection systems are generally satisfactory, they do not always meet all expectations of users. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32A61M5/50A61M5/178
CPCA61M5/178A61M5/3204A61M5/50A61M2005/3264A61M2005/3267A61M5/326A61M5/502A61M5/3245A61M5/31501A61M5/28A61M2005/3268A61M2005/5033A61M5/3129A61M5/31511
Inventor F·佩罗S·波亚西亚奥伊G·贝内德
Owner BECTON DICKINSON FRANCE