Sanofi-aventis

Tech Group Europe Limited

Jean-Michel Chevallier

Stephane Chevallier

Stéphane Chevallier

Hubert Jansen

Alain Feret

The invention relates to a device comprising a syringe body () having an axial direction (A) and a bearing sleeve () inside which the body is arranged. The sleeve has at least one holding lug () co-operating with the syringe body, at a proximal end (A) of the latter, in order to hold the body in relation to the sleeve. Said proximal end is fixed to a wedging surface () having radial crenulations forming dips (B) and bumps (A) and the holding lug is inserted into a dip in order to prevent a relative rotation of the syringe body () and the sleeve perpendicularly to the axial direction.

Syringe device comprising a syringe body and a bearing sleeve

A needle safety shieldfor use with a syringehaving a barrel, a needle and a plunger rod. The safety shieldhas a first tube. A second tubeis arranged for sliding movement within the first tube. A pinis connected to one of the first and second tubes. An activation ringhas a stop. A drive springbiases the activation ringin a proximal direction to place the stopin engagement with the pinto retain the first and second tubesin a retracted configuration. The movement of the plunger rodto engage the activation ringcompresses the drive spring, moving the activation ringdistally, and moving the stopout of engagement with the pin, allowing the drive springto move the first and second tubesinto an extended configuration.

Needle safety shield

The invention comprises a syringe body () having a distal end (B) fitted with an injection needle (), at least one sheath () inside which the body is positioned, and a protective cap () able to be retained relative to the syringe body () to cover the needle () and be separate from this body to release the needle. The device comprises a non-return unit () able to oppose a refitting of the cap () in its protection position once the needle has been released. This non-return unit, for example, comprises an elastic lip () joined to the sheath or the cap.

Syringe device with protective cap

A safety support device for a syringe comprises a support sheath for the body of the syringe and an inner sheath suitable for sliding relative to the support sheath between a waiting, retracted position and the extended position for protecting the needle of the syringe. The device has means for holding the syringe body relative to the support sheath and retaining means suitable for being activated to retain g the inner sheath in the waiting, retracted position inside the support sheath and for being deactivated by the piston of the syringe to allow the inner sheath to extend into its protective, extended position.

Safety assembly for a syringe

A safety support device for a syringe comprises a support sheath () for the body () of the syringe and an inner sheath () suitable for sliding relative to the support sheath between a waiting, retracted position and the extended position for protecting the needle () of the syringe. The device has means for holding the syringe body () relative to the support sheath () and retaining means () suitable for being activated to retain the inner sheath in the waiting, retracted position inside the support sheath and for being deactivated by the piston () of the syringe to allow the inner sheath () to extend into its protective, extended position.

A safety support device for a syringe comprises a support sheath () for the body () of the syringe and an inner sheath () suitable for sliding relative to the support sheath between a waiting, retracted position and the extended position for protecting the needle () of the syringe. The device has means for holding the syringe body () relative to the support sheath () and retaining means () suitable for being activated to retain g the inner sheath in the waiting, retracted position inside the support sheath and for being deactivated by the piston () of the syringe to allow the inner sheath () to extend into its protective, extended position.

The invention relates to a safety device comprising a supporting sleeve () for holding the syringe body (), a protective sleeve (), and at least one holding tongue () which is rigidly connected to the protection sleeve and can be held by the supporting sleeve (), in the holding position. The piston comprises a cylindrical skirt (A) that can end up facing a part of the proximal end (A) of the supporting sleeve, at the end of the injection stroke, in order to co-operate with an actuating part (B,B) of the holding tongue, and to release same in such a way as to enable a relative sliding of the protection sleeve and the supporting sleeve in order to protect the neddle. This proximal end part (A) has at least one deflection ramp () that can co-operate with the skirt (A), at the end of the piston stroke, in order to deform the skirt in such a way as to bring part of the skirt of the actuating part (B,B) closer to the holding tongue ().

Safety device for a syringe

The invention relates to a safe support device for a syringe, said support comprising a support sheath for the body of a syringe, and safety means which comprise an inner sheath suitable for sliding relative to said support sheath between a waiting retracted position, in which said inner sheath is substantially retracted inside said support sheath, and an active protection position, in which said inner sheath projects from said support sheath. The inner sheath has a free end portion formed by a flexible end-piece. The invention also relates to an assembly comprising such a safe support device and a syringe having a body, a piston and a needle disposed at one end of said body.

Needle sheathing device with flexible end-piece for syringe

The safety support device for a syringe comprises a support sheath () for the body () of the syringe and an inner sheath () suitable for sliding relative to the support sheath between a waiting, retracted position and an extended position for protecting the needle () of the syringe. The device has means for holding the syringe body () relative to the support sheath () and retaining means () suitable for being activated to retain the inner sheath in the waiting, retracted position inside the support sheath and for being deactivated by the piston () of the syringe to allow the inner sheath () to extend into its protective, extended position.

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Enghien les Bains, France

Jean-Michel Chevallier