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A passive integrated safety device and an injection device comprising this passive integrated safety device

A technology of safety device and injection device, which is applied in the direction of hypodermic injection devices, devices introduced into the body, needles, etc. It can solve the problems of finger-like parts losing spring effect, losing elastic deformation ability, and unable to protect needles, etc., and achieves easy manufacturing and compactness The effect of manufacture

Active Publication Date: 2020-06-02
BECTON DICKINSON FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plastic materials tend to lose their ability to elastically deform over time
After prolonged storage, the fingers may lose some of their spring effect, and the sleeve may therefore not secure the needle as reliably as intended

Method used

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  • A passive integrated safety device and an injection device comprising this passive integrated safety device
  • A passive integrated safety device and an injection device comprising this passive integrated safety device
  • A passive integrated safety device and an injection device comprising this passive integrated safety device

Examples

Experimental program
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Embodiment Construction

[0092] refer to Figures 1A to 1C , which shows the safety device 1 of the present invention. The safety device 1 is intended to be mounted on a distal end 102 of a barrel 104 of a syringe 106 so as to surround a needle 108 extending from said distal end 102 . The safety device 1 is intended to maintain the sterility of the needle 108 and prevent leakage from the needle 108 in the pre-use state, allow insertion of the needle 108 into the injection site during an injection procedure, and prevent needle sticks in the post-use state where the injection procedure is completed harm.

[0093] In this application, "passive safety device" refers to a needle safety device that does not require any action by the user after injection to keep the needle protected after removal from the injection site.

[0094] In this application, an "integrated safety device" means a safety device that does not include any components that need to be discarded in order to enable the user to perform the i...

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Abstract

This passive safety device (1) comprises an inner needle shield (4) having a proximal end (40) configured to be sealed to a tip (102) of an injection device (100), a distal portion (42) configured tobe pricked by a needle (108) in a pre-use position and pierced by the needle (108) in an injection position, and an energy storage portion (44) configured to accumulate energy as the passive safety device (1) passes from the pre- use position to the injection position and release renergy as the passive safety device (1) passes from the injection position to a safety position. The passive safety device (1) further comprises a sleeve (2) surrounding the proximal end (40), an outer needle shield (6) having a proximal end (62) slidably attached to the sleeve (2) so that the outer needle shield (6)is movable relative to the sleeve (2), and locking means configured to lock the outer needle shield (6) in the safety position. The inner needle shield (4) is configured to move the outer needle shield (6) distally as the energy storage portion (44) releases its stored energy.

Description

technical field [0001] The present invention relates to a passive needle safety device and an injection device (eg a prefilled syringe) comprising the passive needle safety device. Background technique [0002] In this application, the distal end of a component or device is understood to be the end furthest from the user's hand, while the proximal end is understood to be the end closest to the user's hand. Also, in the present application, "distal direction" is to be understood as the direction of injection relative to the passive safety device or injection device of the present invention, while "proximal direction" is to be understood as the direction opposite to said injection direction, i.e. towards the direction of the user's hand. [0003] Injection devices, such as syringes, are usually equipped at their distal end with an injection needle designed to be inserted into the patient's skin and through which the product to be injected is delivered to the injection site. ...

Claims

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Application Information

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IPC IPC(8): A61M5/32
CPCA61M5/326A61M5/3272A61M2005/3247A61M2005/3263A61M2005/3267A61M5/3245A61M5/3271
Inventor J·克劳福德
Owner BECTON DICKINSON FRANCE
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