B. Braun Melsungen Ag

Caremed Medical Produkte Ag

Juergen Reuter

Kevin P Woehr

Juergen Fuchs

Helmut Freigang

Klaus Siemon

Frank Hilberg

Hermann Riesenberger

Roland Gerlach

Dorothea Rohrmann

Joerg Wende

Josef Hannappel

A hypodermic needle assembly configured such that the movement of a needle shield into position to block the needle tip occurs as a direct consequence of a longitudinal force applied by insertion of a syringe plunger is provided. The hypodermic needle assembly according to the present invention comprises a needle, a needle hub, and a safety spring clip assembly, the safety spring clip assembly being configured to automatically launch from the needle hub and slide along the needle until the spring clip meets a needle stop at the needle tip, thus preventing the guard from being removed from the needle shaft. A method of using the hypodermic needle assembly according to the present invention is also provided, which includes the method of launching the spring clip with a syringe having multiple advancing mechanisms.

Spring launched needle safety clip

A hypodermic needle assembly configured such that the movement of a needle shield into position to block the needle tip occurs as a direct consequence of a longitudinal force applied by insertion of a syringe plunger is provided. The hypodermic needle assembly according to the present invention includes a needle, a needle hub, and a safety spring clip assembly, the safety spring clip assembly being configured to automatically launch from the needle hub and slide along the needle to shield the needle tip, thus preventing accidental contact with the needle tip. Additional mechanisms for launching the safety spring clip are also provided, which include using a trigger ring for rotating and launching the safety spring clip. Methods for making and using the hypodermic needle assemblies are also disclosed.

The implant holder comprises a screen ( ) comprising on one side a tissue-compatible fibre material ( ) to which the body cells grow and on the other side a smooth contact surface ( ) for the implant ( ). A holding fixture ( ) retains the implant ( ) to the screen ( ). The implant holder prevents the body tissue from directly growing to the implant, which would make exchange of the implant ( ) more difficult. To exchange the implant the skin ( ) of the patient is cut open and the holding fixture ( ) is opened. The implant holder remains in the body while the implant ( ) is exchanged.

Implant holder

The check valve comprises an inlet duct (,) , an outlet duct (,) and a valve chamber (,) arranged between them. The valve chamber (,) is permanently connected with the inlet duct (,) via openings (,). On a blind duct (,) a valve member (,) is mounted which is made up of a flexible inherently stable hose. The valve member (,) extends into the outlet duct (,) and contacts the inner surface of the outlet duct. At a pressure exceeding the opening pressure of the valve the valve member (,) is lifted off the inner surface of the outlet duct (,).

Check valve, in particular for use in an implantable artificial bladder

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Alheim, Germany

Juergen Reuter