B. Braun Melsungen Ag

Klaus Siemon

Helmut Freigang

Kevin P Woehr

Juergen Fuchs

Juergen Reuter

Martin Sippel

Hermann Riesenberger

Jürgen Fuchs

Frank Hilberg

Volker Harms

Udo Goebel

Hans-Joachim Otto

Joerg Wende

Karl-Heinz Koch

Tabea Hinkel

Manfred Heitmann

Manfred Friederichs

Bernd Siemon

Manfred Seeber

Norbert Heil

Jürgen Reuter

Jörg Wende

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 withdrawal spike comprises a piercing thorn ( ) and a housing ( ) having filter chambers for air and fluid. In a connecting piece ( ) for connection of an external device a self-closing valve ( ) is arranged. Said valve ( ) is adapted to prevent fluid from unintentionally flowing out of the withdrawal spike.

Withdrawal spike

A puncture cannula, particularly for nerve stimulation, comprises a steel cannula ( ) attached to a cannula hub ( ), and a cable ( ) extending through an insertion channel ( ) and having its core ( ) connected to the steel cannula ( ). The hub ( ) of the cannula ( ) comprises a metallic clamping element ( ) formed with a first clamping slot engaging the steel cannula ( ) and with a second clamping slot engaging the core ( ) of the cable ( ).

Puncture cannula

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.

device for administering liquids comprises an administering part ( ) and an adhesive plaster ( ). The administering part ( ) is connected with a cannula stud ( ) and an administering line ( ) and carries a liquid. For fastening the administering part ( ) to the surface of a patient's skin or the surface of an object the adhesive plaster ( ) is stuck on the surface. The adhesive plaster ( ) is provided with a plug-in pin ( ) which is adapted to be inserted into an insertion opening ( ) of the filter ( ). By placing the filter ( ) onto the plug-in pin ( ) the administering part ( ) is detachably connected with the adhesive plaster ( ). If the administering part ( ) is a filter with transparent housing the filter membrane is well visible since the latter is not covered by adhesive strips when the filter is fastened to the patient's body.

Device for administering liquids to a patient

A filter for medical fluids comprises a hydrophilic membrane ( ) dividing the filter into an inlet chamber ( ) and an outlet chamber ( ). This prevents air from penetrating the outlet chamber ( ). The air retained in the inlet chamber ( ) is discharged through vent holes ( ). Each vent hole ( ) is covered with a hydrophobic membrane ( ). According to the invention one of the vent holes ( ) is provided in a front wall ( ) opposite the hydrophilic membrane ( ). The other vent hole ( ) is provided in a rear wall ( ) located opposite the front wall ( ) so that the two vent holes ( ) point in opposite directions. Owing to this arrangement of the two vent holes ( ) one vent hole ( ) points upwards irrespective of the filter position. This improves venting of the inlet chamber ( ).

Filter for medical fluids

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Koerle, Germany

Klaus Siemon