Abstract: A system including a power tool and an energy supply device, wherein the energy supply device is provided for supplying the power tool with electrical energy. The energy supply device can be releasably connected to the power tool via an interface, wherein the interface comprises at least a female contact partner and a male contact partner. The interface has a total electrical transition resistance per pole of less than 0.4 milliohm, preferably less than 0.3 milliohm and particularly preferably less than 0.2 milliohm. At least one of the contact partners has a first coating, wherein the first coating has a graphite proportion of less than 30%. In addition, the interface may comprise more than six, preferably more than eight and most preferably more than twelve individual contact points. An energy supply device for use in the system is also provided.

Abstract: In one aspect the present disclosure refers to a supplementary device for a manually operable injection device, the supplementary device comprising: a body attachable to an elongated housing of the injection device, at least one connector connected to the body and connectable to the housing, wherein the body is attachable to the housing via the at least one connector, a sensor arrangement coupled to at least one of the body and the at least one connector and configured to measure a longitudinal force component acting between the at least one connector and the body in a direction parallel to the elongation of the housing.

Abstract: In one aspect the present disclosure refers to a supplementary device for a manually operable injection device, the supplementary device comprising: a body attachable to an elongated housing of the injection device, at least one connector connected to the body and connectable to the housing, wherein the body is attachable to the housing via the at least one connector, a sensor arrangement coupled to at least one of the body and the at least one connector and configured to measure a longitudinal force component acting between the at least one connector and the body in a direction parallel to the elongation of the housing.

Abstract: The disclosure relates to a drug delivery device having a drive unit includes a stator comprising a plurality of coils consecutively arranged in an axial direction, and an armature axially movable within the stator, the armature including a number of magnets and pole shoes consecutively arranged in the axial direction. A respective pole shoe is arranged between respectively neighbouring magnets. At least one axial end of the armature comprises a terminal pole shoe.

Abstract: The present disclosure relates to a medical pump for dispensing a liquid. The medical pump includes a housing, a receptacle and a piston. The housing includes an inlet for receiving said liquid and an outlet for dispensing said liquid. The receptacle includes a chamber and a passage that is in fluid communication with the chamber. The receptacle is received in the housing and is axially movable relative to the housing from a filling position, wherein the passage fluidly communicates the chamber with the inlet, to a dispensing position, wherein the passage fluidly communicates the chamber with the outlet. The piston is received in the chamber and is configured such that when the receptacle is in the filling position the piston is axially moveable relative to the receptacle and when the receptacle is in the dispensing position the piston is axially moveable relative to the receptacle.

Abstract: The disclosure relates to a drug delivery device having a drive unit includes a stator comprising a plurality of coils consecutively arranged in an axial direction, and an armature axially movable within the stator, the armature including a number of magnets and pole shoes consecutively arranged in the axial direction. A respective pole shoe is arranged between respectively neighbouring magnets. At least one axial end of the armature comprises a terminal pole shoe.

Abstract: The present disclosure relates to a medical pump for dispensing a liquid. The medical pump includes a housing, a receptacle and a piston. The housing includes an inlet for receiving said liquid and an outlet for dispensing said liquid. The receptacle includes a chamber and a passage that is in fluid communication with the chamber. The receptacle is received in the housing and is axially movable relative to the housing from a filling position, wherein the passage fluidly communicates the chamber with the inlet, to a dispensing position, wherein the passage fluidly communicates the chamber with the outlet. The piston is received in the chamber and is configured such that when the receptacle is in the filling position the piston is axially moveable relative to the receptacle and when the receptacle is in the dispensing position the piston is axially moveable relative to the receptacle.

Abstract: The present disclosure relates in one aspect to a measuring arrangement for measuring a volume occupied by a liquid medium inside a liquid reservoir, the measuring arrangement including a container having an interior volume containing a gas reservoir filled with a gaseous medium and containing a liquid reservoir filled with a liquid medium, wherein the gas reservoir and the liquid reservoir are hermetically separated by an impenetrable separation wall, a volume modulator to induce a volume change of the gas reservoir, a pressure sensor arranged inside the gas reservoir to measure a pressure change of the gaseous medium in response to the volume change of the gas reservoir, and a controller connectable to the pressure sensor, wherein the controller is configured to calculate the volume of the liquid reservoir on the basis of the pressure change and the volume change.

Abstract: Rechargeable battery pack for an electric handheld power tool, wherein the rechargeable battery pack has a housing shell and a core pack which is accommodated in the housing shell, wherein the housing shell is potted with a potting compound which serves to dissipate heat from the core pack, wherein the potting compound is introduced into the housing shell at least in two layers by way of a first layer and a second layer.

Abstract: Rechargeable battery, in particular for supplying a machine tool with electrical power, comprising a housing for accommodating at least one energy storage cell, and a positive line and a negative line for connecting the at least one energy storage cell to an interface device. The rechargeable battery contains at least one overcurrent protection device in the positive line or in the negative line.

Abstract: A power semiconductor module, as well as a corresponding method of manufacture, are provided. The power semiconductor module has a plurality of power switches. A first subset of the power switches forms part of a first electrical current branch. A second subset of the power switches forms part of a second electrical current branch. Within the current branches, the associated power switches are arranged symmetrically with respect to the DC voltage contacts and are connected in such a way that a current density which is formed in the individual current paths which are respectively assigned to one of the power switches is at least substantially homogeneously distributed during the high frequency operation of the power semiconductor module and/or in the operation of the power switches with high voltage gradients.

Abstract: In one aspect the present disclosure refers to a measuring arrangement for measuring of a volume change of a liquid medium located inside a liquid reservoir, the measuring arrangement comprising: a gas tight enclosure having an interior volume containing a gas reservoir and containing the liquid reservoir, wherein the liquid reservoir is filled with a liquid medium, a gas inlet in flow connection with the gas reservoir and extending through a boundary of the gas tight enclosure to an exterior of the gas tight enclosure, an outlet connectable with the liquid reservoir and extending through the boundary of the gas tight enclosure, wherein the gas reservoir and the liquid reservoir are hermetically separated by an impenetrable separation wall, and a flow meter arranged in or across the gas inlet to measure an ingress of a gaseous medium through the inlet in response to a withdrawal of the liquid medium from the liquid reservoir through the outlet.

Abstract: The present disclosure relates to a medical pump for dispensing a liquid. The medical pump comprises a housing, a receptacle and a piston. The housing comprises an inlet for receiving said liquid and an outlet for dispensing said liquid. The receptacle comprises a chamber and a passage that is in fluid communication with the chamber. The receptacle is received in the housing and is axially movable relative to the housing from a filling position, wherein the passage fluidly communicates the chamber with the inlet, to a dispensing position, wherein the passage fluidly communicates the chamber with the outlet. The piston is received in the chamber and is configured such that when the receptacle is in the filling position the piston is axially moveable relative to the receptacle and when the receptacle is in the dispensing position the piston is axially moveable relative to the receptacle.

Abstract: Protective apparatus for protecting a rechargeable battery pack including at least one rechargeable battery cell against an overvoltage in at least one line of the rechargeable battery pack. Method for protecting a rechargeable battery pack against an overvoltage, wherein the rechargeable battery pack includes at least one rechargeable battery cell and also a protective apparatus including a fuse device including at least one fuse, a short-circuiting line for optionally short-circuiting the at least one rechargeable battery cell by way of the at least one fuse, a monitoring device including at least one voltage comparator and at least one switch for optionally closing the short-circuiting line.

Abstract: The hand machine tool according to the invention has an integrated tool or a tool holder 2 to receive a tool 4. An electric motor 5 serves to drive the tool 4 or the tool holder 2. A battery pack 18 for supplying power to the electric motor 5 can be pushed into a guide 23 in a first direction. A plurality of electrical contacts 31 for contacting counter contacts 32 of the battery pack 18 are disposed in a contact holder 36. Wires 40, which are connected in each case to one of the electrical contacts 31, have cores which extend in a wave-like manner in the first direction 28 adjacent to the electrical counter contact 32.

Abstract: An adapter apparatus for connecting a rechargeable battery to a power tool, containing a latching device for latching the adapter apparatus together with the power tool; and a locking device for locking the latching device is disclosed. The latching device is adjustable reversibly from a first position into a second position, wherein, in the first position, the adapter apparatus is firmly connected to the power tool and, in the second position, the adapter apparatus is detachable from the power tool, and the locking device is adjustable reversibly from a first position into a second position, wherein, in the first position, the locking device locks the latching device in the first position and, in the second position, the locking device does not lock the latching device and so the latching device is movable from the first position into the second position.

Abstract: The disclosure relates to a drug delivery device having a drive unit includes a stator comprising a plurality of coils consecutively arranged in an axial direction, and an armature axially movable within the stator, the armature including a number of magnets and pole shoes consecutively arranged in the axial direction. A respective pole shoe is arranged between respectively neighbouring magnets. At least one axial end of the armature comprises a terminal pole shoe.

Abstract: A method for determining a position of a component in a medical apparatus along a travel distance. The method comprising the steps of generating light by a light source; fixing the component movably along a travel distance; providing a photosensitive sensor surface, and generating a silhouette of the component on the sensor surface by irradiating the component with light from the light source. Data relating to the silhouette is converted by a data processing unit into the position of the component along the travel distance. The component whose position is determined may comprise a stopper of a cartridge.

Abstract: The disclosure relates to a drug delivery device having a drive unit includes a stator comprising a plurality of coils consecutively arranged in an axial direction, and an armature axially movable within the stator, the armature including a number of magnets and pole shoes consecutively arranged in the axial direction. A respective pole shoe is arranged between respectively neighbouring magnets. At least one axial end of the armature comprises a terminal pole shoe.

Abstract: A power semiconductor module, as well as a corresponding method of manufacture, are provided. The power semiconductor module has a plurality of power switches. A first subset of the power switches forms part of a first electrical current branch. A second subset of the power switches forms part of a second electrical current branch. Within the current branches, the associated power switches are arranged symmetrically with respect to the DC voltage contacts and are connected in such a way that a current density which is formed in the individual current paths which are respectively assigned to one of the power switches is at least substantially homogeneously distributed during the high frequency operation of the power semiconductor module and/or in the operation of the power switches with high voltage gradients.