Abstract: An aiming jig for a tibia plate, including: a head the interfaces with a head of the tibia plate comprising: screw guide holes corresponding to screw holes in the head of the tibia plate; a fixation protrusion that engages a fixation opening in the head of the tibia plate, wherein an engagement of the fixation protrusion with the fixation opening aligns the head with the head of the tibia plate; and an arm extending from the head including a guide wherein the guide is configured to extend along an anterior portion of a tibia when the aiming jig is fixed to the tibia plate, and the guide includes a support screw guide hole that guides a placement of a support screw into the tibia in a generally anterior to posterior direction so that the support screw avoids interfering with plate screws placed in the head of the tibia plate.

Abstract: A method for treating an articular fracture of a tibia using a tibia plate with an extension arm, including: making an incision to expose the tibia; reducing the articular fracture of the tibia; contouring the tibia plate to fit the tibia; preliminarily fixing the tibia plate to the tibia; placing a screw partially into the tibia through a lateral elongated hole in the tibia plate; applying compression between a plate screw hole in the extension arm and an anterior surface of the tibia; and placing additional plate screws in the tibia through additional screw holes in the tibia plate.

Abstract: A method for treating an articular fracture of a tibia using a tibia plate with an extension arm, including: making an incision to expose the tibia; reducing the articular fracture of the tibia; contouring the tibia plate to fit the tibia; preliminarily fixing the tibia plate to the tibia; placing a screw partially into the tibia through a lateral elongated hole in the tibia plate; applying compression between a plate screw hole in the extension arm and an anterior surface of the tibia; and placing additional plate screws in the tibia through additional screw holes in the tibia plate.

Abstract: A screwdriver includes a body extending longitudinally from a proximal end to a distal end. The distal end includes a distal screw engaging tip. The screwdriver also includes a slot extending through a width of the screw engaging tip and extending proximally a distance into the body. The slot permits opposed portions of the screw engaging tip to spread apart from one another into a locking configuration in which the opposed portions apply a radially outward force against an interior surface of a recess in a head of a screw into which the screw engaging tip has been inserted to releasably lock the screw engaging tip within the recess.

Abstract: An aiming jig for a tibia plate, including: a head the interfaces with a head of the tibia plate comprising: screw guide holes corresponding to screw holes in the head of the tibia plate; a fixation protrusion that engages a fixation opening in the head of the tibia plate, wherein an engagement of the fixation protrusion with the fixation opening aligns the head with the head of the tibia plate; and an arm extending from the head including a guide wherein the guide is configured to extend along an anterior portion of a tibia when the aiming jig is fixed to the tibia plate, and the guide includes a support screw guide hole that guides a placement of a support screw into the tibia in a generally anterior to posterior direction so that the support screw avoids interfering with plate screws placed in the head of the tibia plate.

Abstract: A method for treating an articular fracture of a tibia using a tibia plate with an extension arm, including: making an incision to expose the tibia; reducing the articular fracture of the tibia; contouring the tibia plate to fit the tibia; preliminarily fixing the tibia plate to the tibia; placing a screw partially into the tibia through a lateral elongated hole in the tibia plate; applying compression between a plate screw hole in the extension arm and an anterior surface of the tibia; and placing additional plate screws in the tibia through additional screw holes in the tibia plate.

Abstract: A device includes an outer sleeve of flexible material forming an outer conduit extending longitudinally therethrough for the insertion of a bone treatment device (“BTD”) to target sites within a living body. A distal opening of the outer conduit is open so that, when the outer sleeve is in a desired position within the body, BTD is inserted through the outer conduit exits the outer sleeve adjacent to a target portion of a bone. The device also includes an inner sleeve received within the outer sleeve and defining an inner conduit within the outer conduit to form a protective covering. The inner sleeve is split longitudinally. Portions of the inner sleeve on opposite sides of the split are coupled to one another so that a diameter of the inner conduit is adjustable in response to forces exerted thereon by one of BTD and tissues surrounding the outer sleeve.

Abstract: A device includes an outer sleeve of flexible material forming an outer conduit extending longitudinally therethrough for the insertion of a bone treatment device (“BTD”) to target sites within a living body. A distal opening of the outer conduit is open so that, when the outer sleeve is in a desired position within the body, BTD is inserted through the outer conduit exits the outer sleeve adjacent to a target portion of a bone. The device also includes an inner sleeve received within the outer sleeve and defining an inner conduit within the outer conduit to form a protective covering. The inner sleeve is split longitudinally. Portions of the inner sleeve on opposite sides of the split are coupled to one another so that a diameter of the inner conduit is adjustable in response to forces exerted thereon by one of BTD and tissues surrounding the outer sleeve.

Abstract: The present invention relates to a method for operating a fuel cell system having a fuel cell stack to which a fuel is supplied on the anode side and an oxidizing agent is supplied on the cathode side, wherein at least during one phase of the operation of the fuel cell system, urea is supplied to the fuel cell stack as a fuel.

Abstract: The present invention relates to a method for operating a fuel cell system having a fuel cell stack to which a fuel is supplied on the anode side and an oxidizing agent is supplied on the cathode side, wherein at least during one phase of the operation of the fuel cell system, urea is supplied to the fuel cell stack as a fuel.

Abstract: A fuel cell system is provided, including a fuel cell stack with a plurality of cathodes (30) and anodes (34), wherein an oxidizing gas containing oxygen is feedable to the stack on the cathode side and a fuel gas is feedable to the stack on the anode side, and a reformer for generating the fuel gas from a fuel. The fuel cell stack includes a catalytically active material (42) which is arranged in the anode-side regions such that the fuel gas flows through the material upstream of the anode (34), wherein the catalytically active material catalyzes the reaction of carbon monoxide and water to carbon dioxide and hydrogen.

Abstract: The integrated gate dual transistor (IGDT) has two controllable gates (G1, G2), a first gate (G1) being provided on the cathode side and being driven via a low-inductance first gate terminal with a first gate current, and a second gate (G2) being provided on the anode side and being driven via a low-inductance second gate terminal with a second gate current. In the switch-off operation of the IGDT, the rate of rise of the voltage across the IGDT is limited via the two gates. Limiting the rate of rise of the voltage across the IGDT prevents voltages from building up at different speeds in a series circuit of IGDTs, and thus unequal loads from overheating and destroying the individual IGDTs.

Abstract: A current source inverter (1) comprises a bridge circuit (2) having a plurality of bridge paths (5), in each of which a controllable power semiconductor component (6) is arranged. In the case of such an inverter, a loss in performance on account of inductance-dictated overvoltages during the turn-off of the power semiconductor components (6) is avoided by virtue of the fact that the controllable power semiconductor component (6) is avalanche-proof at least under loading in the forward direction.