COUPLING ELEMENT FOR CONNECTING A MEDICAL OR DENTAL INSTRUMENT TO A CONTROL OR SUPPLY UNIT

Description

[0001] The present invention relates to a medical or dental instrument part with an electrically powered storage device for storing identification data and / or operating data and / or maintenance data of or for the instrument part.

[0002] A medical or dental instrument component with an electrically powered storage device is known, for example, from patent application US 2003 / 0165794 A1 (also published as patent US 6,899,538). The storage device is part of an identification signal output device for actively outputting identification signals to identify the instrument component, so that a control, regulation, or power supply circuit automatically recognizes the instrument component and supplies or drives it accordingly. Power supply and communication between the storage device and the drive circuit are wired via electrical conductors that electrically connect the storage device and the control, regulation, or power supply unit.

[0003] EP2514386 A1 discloses a medical or dental treatment device comprising a first medical or dental instrument part with a first medical or dental instrument part control that is electrically powered, and a second medical or dental instrument part that is electrically powered.

[0004] The present invention aims to improve the design of a medical or dental instrument component with regard to the wired power supply and communication / data transmission between the storage device and the control, regulation, or supply unit. In particular, the instrument component should be simple in design, and the components required for the power supply and communication between the storage device and the control, regulation, or supply unit should be compact and ensure reliable power supply and data transmission.

[0005] This problem is solved according to the present invention by a medical or dental instrument component having the features of claim 1. Particularly advantageous embodiments are set forth in the dependent claims.

[0006] The medical or dental instrument part comprises: a coupling device for connecting the instrument part to a control, regulating or supply unit, an electrically powered storage device for storing identification data and / or operating data and / or maintenance data of the instrument part, and at least one electrical line for supplying electrical energy to a lighting device provided on, connected to or connectable with the instrument part for the operation of the lighting device, and for supplying electrical energy to the storage device for the operation of the storage device.

[0007] By providing at least one electrical line for supplying power to the lighting device and another for supplying power to the storage device, the design of the instrument panel is significantly simplified. For example, the number of electrical lines within the instrument panel is reduced. In particular, the design of the coupling device for connecting the instrument panel to a control, regulating, or power supply unit is greatly simplified because the number of electrical contacts at the coupling interface is reduced.

[0008] The at least one electrical line, which is provided for supplying electrical energy to the lighting device provided on or connectable to the instrument part for the operation of the lighting device and for supplying electrical energy to the storage device for the operation of the storage device, is preferably designed as a common electrical line, in particular as a common electrical line for the lighting device and the storage device. The lighting device and the storage device are thus electrically connected to the (common) electrical line. A branch is particularly preferred, from which a first electrical branch line extends to the storage device and a second electrical branch line extends to the lighting device.

[0009] The at least one (common) electrical conductor is preferably designed as a wire conductor and / or as an electrical conductor printed on a circuit board.

[0010] The term ‘medical or dental instrument part’ shall in particular mean: a medical or dental element that can be held by one hand, a handle element, a straight handpiece, an angled or bent handpiece or contra-angle piece, an adapter, a coupling element, a drive element, in particular an air motor or an electric motor, or a supply hose or a part of the elements mentioned above.

[0011] Preferably, the instrument part comprises a medical or dental handpiece, or at least a part thereof, which has: a drive element that can be rotated to drive a tool that can be detachably connected to the handpiece, a coupling device for connecting the handpiece to a control, regulating or supply unit, an electrically powered storage device for storing identification data and / or operating data and / or maintenance data of the handpiece, an electrically powered illumination device for emitting radiation onto a treatment site and at least one (common) electrical line that is provided for supplying the illumination device with electrical energy for operating the illumination device and the storage device with electrical energy for operating the storage device.

[0012] The coupling device for connecting the instrument part to a control, regulating, or supply unit is designed, in particular, as a detachable coupling device, so that the instrument part can be separated from the control, regulating, or supply unit. The coupling device is designed, for example, as a plug-in coupling or a rotary coupling, so that the instrument part can be rotated relative to the control, regulating, or supply unit when the instrument part is connected to the control, regulating, or supply unit via the coupling device.

[0013] The coupling device comprises, in particular, an end face on which at least one electrical contact is provided, which is connected to the at least one common electrical conductor. If two common electrical conductors are provided, then preferably two electrical contacts are arranged on the end face of the coupling device, each electrical contact being connected to one of the two common electrical conductors. If at least one separate optical or electrical conductor is provided for transmitting identification data and / or operating data and / or maintenance data, then preferably an optical or electrical contact is provided accordingly, which is connected to this at least one electrical conductor for data transmission.

[0014] Preferably, the at least one electrical contact or contacts are detachably connected to the control, regulating, or supply unit. The at least one electrical contact is, for example, designed as a pin-shaped electrical contact, a spring contact, a sliding contact, or as an annular electrical contact surrounding a component of the coupling device.

[0015] The storage device comprises either a read-only memory (ROM) or, preferably, a writable and readable memory. The storage device is specifically designed as a digital storage device for storing and / or reading and / or processing digital data.

[0016] Preferably, the storage device of the instrument part stores or can store identification data and / or operating data and / or maintenance data that are assigned to the instrument part in which the storage device is located. Alternatively, it is also conceivable that the storage device can store or can store identification data and / or operating data and / or maintenance data from an instrument part other than the one in which the storage device is located.

[0017] The storage device preferably comprises a storage element and a microcontroller or microcomputer, which are optionally configured as a single component or as two separate, electrically interconnected components. If the storage element and the microcontroller are configured separately, they can be positioned at different locations within the instrument part, thus facilitating the arrangement of the two components in an instrument part with a small internal volume.

[0018] The storage device with the microcontroller is preferably configured for the active output of a digital signal or digital data. The storage device with the microcontroller also includes, in particular, software that enables the receiving, sending, processing, and storing of data, and / or the execution of independent control steps.

[0019] The supply of electrical energy to the lighting device and the storage device, as well as preferably the (digital) data transmission via the at least one (common) electrical line, can be achieved, for example, by modulation and / or by digital multiplexing and / or by time-delayed sending or transmission of digital data and / or electrical energy, in particular with the help of the microcontroller of the storage device.

[0020] The illumination device provided on or connectable to the instrument part preferably comprises one or more light sources, for example, optical semiconductor elements, in particular light-emitting diodes (LEDs). Preferably, the illumination device comprises several light sources, wherein at least one first light source (LED) emits a first wavelength or a first wavelength range, and at least one second light source (LED) emits a second wavelength or a second wavelength range that differs from the first wavelength or wavelength range. Preferably, the first light source and the second light source are arranged with opposite electric current directions.A switching device for selectively operating the first light source or the second light source and / or for selectively emitting electromagnetic radiation by the first light source or by the second light source is particularly preferably provided on the instrument part, especially when connected to or as part of the microcontroller, or on an element connected or connectable to the instrument part, for example, the control, regulation, or supply unit. The switching device for selectively operating the first light source or the second light source and / or for selectively emitting electromagnetic radiation by the first light source or by the second light source is particularly preferably provided. The switching device is particularly preferably designed as an electrical switching device, for example, as an H-bridge.

[0021] If the instrument part is designed as a medical or dental handpiece, as described above, the illumination device is preferably arranged adjacent to a head section of the handpiece in which the tool holder for the detachably connectable tool is mounted. In particular, the illumination device comprises several optical semiconductor elements positioned in a ring around a tool receiving opening of the head section.

[0022] Alternatively, the instrument section with the storage device, in particular with the microcontroller, does not include a lighting device, but only at least one (common) electrical line which, in addition to supplying the storage device with electrical energy, is also intended to supply the lighting device with electrical energy. The lighting device is arranged in a separate element which can be connected to, or is connected to, the instrument section with the storage device in such a way that the lighting device can be supplied with electrical energy via the at least one (common) electrical line.

[0023] According to one embodiment, no more than two (shared) electrical lines are provided for supplying the lighting device with electrical energy for its operation, and for supplying the storage device with electrical energy for its operation and for transmitting identification data and / or operating data and / or maintenance data between the storage device and the control, regulation, or supply unit connectable to the instrument part. The supply of electrical energy to the lighting device and the storage device, as well as data transmission, thus takes place exclusively via these two (shared) electrical lines. This embodiment is therefore the simplest or optimal design with regard to the construction of the medical or dental instrument part, the number of electrical contacts on the coupling device, and the space required.

[0024] According to an alternative embodiment, at least one separate line is provided between the storage device and the control, regulation, or power supply unit, which can be connected to the instrument part, for transmitting identification data and / or operating data and / or maintenance data. This separate line (hereinafter also referred to as a data line) is thus, preferably exclusively, intended for data transmission between the storage device and the control, regulation, or power supply unit, but not for supplying the lighting device and the storage device with electrical energy. The separate data line can, for example, be designed as an electrical line for transmitting electrical (data) signals or as an optical line, for example, as a fiber optic cable, for transmitting optical (data) signals.Particularly preferably, the data line forms a direct connection between the microcontroller of the storage device of the instrument part and the control, regulation or supply unit, in particular another microcontroller arranged in the control, regulation or supply unit.

[0025] Preferably, this alternative embodiment thus comprises three lines for supplying the lighting device and the storage device with electrical energy, and for transmitting identification data and / or operating data and / or maintenance data between the storage device and the control, regulation, or supply unit. These three lines comprise, in particular, at least two electrical lines for supplying the lighting device and the storage device with electrical energy and optionally a third electrical or optical line for data transmission. Similarly, three electrical contacts or two electrical contacts and one optical contact are provided on the coupling device of the instrument part, each contact being connected to one of the three lines.

[0026] Preferably, the lighting device and the storage device are arranged electrically in parallel with the microcontroller, in particular including a voltage device associated with the storage device.

[0027] Preferably, an electrical switching element, particularly associated with the storage device, is provided, which is configured to effect changes in an electrical current parameter, especially the electrical voltage, for the transmission of identification data and / or operating data and / or maintenance data between the storage device and the control, regulation, or supply unit that can be connected to the instrument part. Preferably, the electrical switching element is provided to support or read data from the storage device, in particular for the transmission of data from the storage device to the control, regulation, or supply unit.Preferably, the electrical switching element opens and closes a circuit between the storage device and the control, regulating, or supply unit, thereby allowing an electrical current parameter, in particular the electrical voltage, to be changed, for example, an electrical current parameter of the electrical energy supplying the lighting device and the storage device. Preferably, the electrical switching element is electrically connected to the at least one (common) electrical line. Preferably, the at least one (common) electrical line is part of this circuit. As will be described in more detail below, the control, regulating, or supply unit is configured to receive the change in the electrical current parameter, wherein the change in the current parameter or...The response of the control, regulation or supply unit defines the transmitted identification data and / or operational data and / or care data, especially digital data.

[0028] Preferably, the electrical switching element is designed to short-circuit the shunt resistor described in the following paragraph in order to read data from the storage device.

[0029] Preferably, a shunt resistor, particularly one associated with the storage device, is provided, configured to process changes in electrical current for the transmission of identification data and / or operating data and / or maintenance data between the storage device and the control, regulation, or supply unit connectable to the instrument part. Preferably, the shunt resistor is provided for storing data in the storage device or it supports this, particularly for the transmission of data from the control, regulation, or supply unit to the storage device.Preferably, the shunt resistor converts values ​​of the electrical current from the control, regulation, or supply unit, which define identification data and / or operating data and / or maintenance data (digitally), into voltage values ​​processable by the storage device, which also define identification data and / or operating data and / or maintenance data (digitally). Preferably, the shunt resistor is electrically connected to the at least one (common) electrical line.

[0030] Preferably, the shunt resistor is configured as an alternative or additional measure for current monitoring of the lighting device, particularly for the at least one optical semiconductor element. In particular, the shunt resistor prevents the lighting device from being supplied with an excessively high current.

[0031] Preferably, a voltage conditioning device is provided for the storage device, in particular the microcontroller, which is configured to supply a constant electrical voltage to the storage device, in particular the microcontroller. In particular, the voltage conditioning device forms a constant voltage source for the storage device, in particular the microcontroller. Preferably, the voltage conditioning device is electrically connected to a power source, in particular a constant current source, in the control, regulation, or supply unit, in particular via the at least one (common) electrical line. Preferably, the power source, in particular the constant current source, supplies the voltage conditioning device with electrical energy in the control, regulation, or supply unit.Preferably, the voltage conditioning is designed such that the storage device, in particular the microcontroller, is supplied with a lower electrical voltage than the lighting device. Preferably, the voltage conditioning is arranged in series with the storage device.

[0032] Preferably, a voltage monitoring device is provided for the lighting device, configured to monitor the electrical voltage supplied to the lighting device. The voltage monitoring device particularly includes a voltage divider that monitors the input voltage at the instrument panel. The voltage divider has, for example, two electrical resistors connected to the microcontroller of the storage device.

[0033] According to one embodiment, the instrument part comprises at least one sensor configured to detect an operating state of the instrument part and to generate a sensor signal, preferably electrical, wherein the at least one sensor is electrically connected to the at least one (common) electrical line, so that the sensor signal of the sensor and / or electrical energy for operating the sensor can be transmitted via the at least one (common) electrical line.

[0034] The sensor includes, for example, a temperature sensor for measuring the temperature of the instrument part or a section thereof, or at least of a component arranged in the instrument part, in particular a component that can be set in motion by a drive element, for example, a bearing. The temperature sensor includes, in particular, an electrically operated temperature sensor, for example, a temperature sensor with a material whose electrical resistance changes with temperature (e.g., an NTC temperature sensor), or an infrared temperature sensor.

[0035] Alternatively, the sensor may include, for example, a speed sensor for measuring the rotational speed of a drive element of the instrument component or of a tool that can be connected to it. The speed sensor may be designed, for example, as an inductive, capacitive, or optical speed sensor.

[0036] Of course, the sensor can also be designed to measure other parameters, and may, for example, have a sensor for measuring power, force or pressure, torque, light intensity or wavelength, etc.

[0037] Preferably, the sensor signal is transmitted to the control, regulation, or supply unit, in particular to a microcontroller arranged therein, via the at least one (common) electrical line or alternatively via the separate data line described above. The at least one sensor is thus connected to the control, regulation, or supply unit via the at least one (common) electrical line or via the separate data line in such a way that the control, regulation, or supply unit receives and processes a sensor signal. In particular, the control, regulation, or supply unit is configured to control, regulate, or, for example, supply the instrument component with a device based on a sensor signal received from the at least one sensor.

[0038] According to one embodiment, a medical or dental treatment device is provided, comprising: a medical or dental instrument part as described above or below, an electrical power source, in particular a constant current source, configured to supply the illumination device and the storage device of the instrument part with electrical energy, and a control, regulating, or supply unit configured to exchange identification data and / or operating data and / or maintenance data of the instrument part with the storage device of the instrument part. Preferably, the instrument part and the control, regulating, or supply unit are detachably connected to one another via the coupling device.

[0039] Preferably, a further microcontroller is provided in the control, regulation, or supply unit, which is connected to the microcontroller of the instrument section, wherein the at least one (common) electrical line forms part of this connection. Preferably, the power source is also arranged in the control, regulation, or supply unit and, in particular, is electrically connected to the lighting device and the storage device via the at least one (common) electrical line.

[0040] As described above, the energy source, in particular the constant current source, supplies the lighting device with a constant current. The storage device, in particular the microcontroller, which requires a constant electrical voltage, is supplied with electrical energy by the energy source, preferably designed as a constant current source, via a voltage conditioning device associated with the storage device. The voltage conditioning device is configured to supply the storage device with a constant electrical voltage.

[0041] Preferably, the control, regulation or supply unit, in particular its microcontroller, is / are designed to read out the identification data and / or operating data and / or maintenance data stored in the storage device, and in particular to detect or recognize changes in electrical load or electrical voltage caused by the switching element.

[0042] As described above, the electrical switching element preferably opens and closes a circuit between the storage device and the control, regulation, or supply unit, and in particular short-circuits the shunt resistor associated with the storage device, thereby allowing an electrical current parameter, especially the voltage, which defines the identification data and / or operating data and / or maintenance data (digitally), to be changed. The control, regulation, or supply unit, in particular its microcontroller, is configured to recognize or detect the changes or fluctuations caused by the switching element. The change in the current parameter or...The microcontroller of the control, regulation or supply unit detects the compensation of these fluctuations in the electrical current parameter and recognizes the identification data and / or operating data and / or maintenance data transmitted by the storage device.

[0043] Preferably, the electrical energy source, in particular the constant current source, and / or the control, regulation, or supply unit is / are configured to vary the electrical current that can be supplied to the shunt resistor, in particular associated with the storage device, and to the storage device itself, in order to transmit data to the storage device. The microcontroller of the control, regulation, or supply unit is specifically configured to effect or control the change in electrical current. The change in current defines, in particular digitally, the identification data and / or operating data and / or maintenance data.As described above, a shunt resistor preferably converts the values ​​of the electrical current of the control, regulation or supply unit, which define identification data and / or operating data and / or maintenance data, into electrical voltage values ​​that can be received and processed by the microcontroller of the instrument part, so that the microcontroller can store data on the memory element of the storage device.

[0044] Preferably, the control, regulation, or supply unit is configured to operate the instrument part based on identification data and / or operating data and / or maintenance data stored in and read from the storage device and / or on the basis of the sensor signal received from the at least one sensor. For example, the control, regulation, or supply unit is configured to supply an instrument part with the drive energy and / or at least a specific medium and / or a specific quantity of medium, tailored to that instrument part, based on this data.

[0045] Preferably, the control, regulating or supply unit is designed to transmit data to the instrument part, for example, regarding the duration of operation of the instrument part, the type of its use and / or the type and / or duration of its cleaning or maintenance.

[0046] According to one embodiment, a method for operating a medical or dental instrument part or a medical or dental treatment device is provided, in which at least one (common) electrical line supplies electrical energy to a lighting device provided on the instrument part or connected or connectable to the instrument part for operating the lighting device and to a storage device for operating the storage device.

[0047] Preferably, no more than two electrical lines supply the lighting device and the storage device with electrical energy for operating the storage device and transmit the identification data and / or operating data and / or maintenance data between the storage device and the control, regulation, or supply unit connectable to the instrument part. Alternatively, at least one separate line (data line) transmits the identification data and / or operating data and / or maintenance data, particularly directly, between the storage device and the control, regulation, or supply unit connectable to the instrument part. The data line is optionally designed as an electrical line that transmits the data in the form of electrical signals, or as an optical line that transmits the data in the form of optical signals.

[0048] Preferably, the at least one (common) electrical line additionally transmits a sensor signal from the sensor in the instrument part and / or electrical energy to operate the sensor, as described above.

[0049] Preferably, the control, regulation, or supply unit, in particular its microcontroller, detects or recognizes changes in an electrical current parameter, especially the electrical voltage, caused by the switching element, in order to read the identification data and / or operating data and / or maintenance data stored in the storage device. The microcontroller of the control, regulation, or supply unit detects the change in the electrical current parameter or the compensation of these fluctuations and from this recognizes the identification data and / or operating data and / or maintenance data transmitted by the storage device, as described above.

[0050] Preferably, the electrical power source, in particular the constant current source, and / or the control, regulation, or supply unit for transmitting data to the storage device varies the electrical current supplied to the shunt resistor and the storage device. The shunt resistor preferably converts the electrical current values ​​of the control, regulation, or supply unit, which define identification data and / or operating data and / or maintenance data, into electrical voltage values, which also define identification data and / or operating data and / or maintenance data (digitally). These electrical voltage values ​​are received or processed by the microcontroller of the instrument section and stored on the storage element, as described above.

[0051] Preferably, the control, regulation or supply unit operates the instrument part based on identification data and / or operating data and / or maintenance data stored in and read from the storage device and / or on the basis of the sensor signal received from the at least one sensor, as described above.

[0052] According to one embodiment, a medical or dental instrument part is provided, comprising: a coupling device that couples the medical or dental instrument part to a supply hose for connecting the medical or dental instrument part to a control, regulating or supply unit; an electrically powered medical or dental instrument part control; and three electrical lines, comprising a first common electrical line, a second common electrical line and a third electrical line.The first and second common electrical leads are connected to the medical or dental instrument control unit and to an electromagnetic radiation emitter provided on, or capable of being connected to, the medical or dental instrument. These leads supply electrical energy from a common electrical power source to the electromagnetic radiation emitter for operation and to the control unit of the medical or dental instrument for operation. The third of the three electrical leads connects the medical or dental instrument control unit to the control, regulating, or power supply unit.The medical or dental instrument part further comprises at least one sensor designed to generate a sensor signal, wherein the at least one sensor is connected to the third electrical line so that the sensor signal can be transmitted via the third electrical line to the control, regulating or supply unit.

[0053] The medical or dental instrument component control system preferably comprises a microcontroller or microcomputer. The medical or dental instrument component control system preferably includes a memory element for storing identification and / or operating and / or maintenance data of the medical or dental instrument component.

[0054] The electromagnetic radiation emission device emits electromagnetic radiation from the medical or dental instrument part or from a component connected to the medical or dental instrument part. The electromagnetic radiation emission device emits electromagnetic radiation towards a workpiece of the medical or dental instrument part. The electromagnetic radiation emitted by the electromagnetic radiation emission device comprises at least one of the following elements: visible radiation or visible light, i.e., radiation with at least one wavelength in the range between 380 nm and 780 nm; white light; non-visible radiation, i.e., radiation with wavelengths outside the range of 380 nm to 780 nm; laser light; IR radiation; UV radiation; diagnostic radiation; tissue treatment radiation.

[0055] The common power source supplies power to the control unit of the medical or dental instrument component and the electromagnetic radiation source. The common power source preferably supplies power to the at least one sensor of the medical or dental instrument component, particularly if the at least one sensor is an active sensor that requires electrical energy to operate. The common power source can also supply electrical energy to other components of the medical or dental instrument component or components coupled to the medical or dental instrument component, such as a display or a heating element.

[0056] The common power source can be a constant current source, which supplies electrical energy at a constant current, or a constant voltage source, which supplies electrical energy at a constant voltage.

[0057] The third of the three electrical lines is intended for the transmission of data between the control, regulation or supply unit and components of the medical or dental instrument part, in particular the at least one sensor and / or the medical or dental instrument part control.Preferably, the first common electrical line and the second common electrical line supply the medical or dental instrument part only with electrical energy, while the third electrical line transmits only sensor signals and / or data, so that the supply of electrical energy and the transmission of sensor signals and / or data advantageously take place on different, separate electrical lines, which preferably leads to at least less interference between the supplied electrical energy and the transmitted sensor signals and / or data and thus to more stable sensor signal and / or data transmission.

[0058] Data transmission via the third electrical line can include unidirectional transmission, e.g., the transmission of the sensor signal from the at least one sensor to the control, regulation, or supply unit, particularly if the at least one sensor is an analog sensor. Data transmission can also include bidirectional transmission, e.g., the transmission of data between the memory element of the medical or dental instrument control unit and the control, regulation, or supply unit, and / or if the at least one sensor is a digital sensor.

[0059] The at least one sensor is connected to the third electrical line for transmitting the sensor signal or a signal derived from the sensor signal. The at least one sensor can be connected directly to the third electrical line, i.e., without an intermediate element between the at least one sensor and the third electrical line.

[0060] Alternatively, the at least one sensor is connected to the third electrical line via the medical or dental instrument control unit. Preferably, the at least one sensor is electrically connected to the medical or dental instrument control unit, particularly via electrical lines. This transmits the sensor signal from the at least one sensor to the medical or dental instrument control unit. Preferably, the sensor signal generated by the at least one sensor, or a sensor signal processed by the medical or dental instrument control unit, or a signal derived from the sensor signal is transmitted from the medical or dental instrument control unit and the third electrical line to the control, regulation, or supply unit.

[0061] The third electrical line can be a common electrical line connected to several components of a medical or dental instrument part or to several medical or dental instrument parts, e.g. to the at least one sensor and to the medical or dental instrument part control.

[0062] The medical or dental instrument component control unit preferably supplies the at least one sensor with electrical energy, particularly if the at least one sensor is an active sensor that requires electrical energy for operation. The medical or dental instrument component control unit is particularly preferably configured to process the electrical energy received from the common electrical energy source via the first common electrical line and the second common electrical line, and to supply the processed electrical energy to the at least one sensor, so that the at least one sensor is supplied with the electrical energy required for it.The medical or dental instrument control unit supplies at least one sensor with electrical energy via electrical lines, whereby at least one of these electrical lines can be used for energy supply and in particular also for transmitting the sensor signal to the medical or dental instrument control unit.

[0063] Alternatively, the at least one sensor is directly connected (i.e., without the medical or dental instrument control unit being inserted between the at least one sensor and the first and second common electrical leads) to the common electrical power source via the first and second common electrical leads to obtain electrical power from the common electrical power source. Preferably, the at least one sensor is (only) associated with a device for conditioning the electrical power supplied by the common power source in order to provide the at least one sensor with the electrical power it requires. The device for conditioning the electrical power includes, for example, a DC / DC converter.

[0064] Preferably, the medical or dental instrument part control is designed to either store or process the sensor signal generated by the at least one sensor.

[0065] The processing of the sensor signal preferably includes the conversion of the sensor signal generated by the at least one sensor. For example, if the sensor signal is an analog sensor signal, the medical or dental instrument control unit is configured to convert the analog sensor signal into a digital sensor signal.

[0066] The processing of the sensor signal preferably includes filtering the sensor signal generated by the at least one sensor. The processing of the sensor signal preferably includes reducing the noise of the sensor signal generated by the at least one sensor. The processing of the sensor signal preferably includes amplifying the sensor signal generated by the at least one sensor.

[0067] The medical or dental instrument part control is preferably designed to store the processed sensor signal and / or to send the processed sensor signal, in particular the converted digital sensor signal, via the third electrical line of the three electrical lines to the control, regulation or supply unit.

[0068] The medical or dental instrument component control unit is preferably configured to operate, regulate, or control at least one component of the medical or dental instrument based on the sensor signal received from the at least one sensor. Particularly preferably, the medical or dental instrument component control unit stores and / or processes the sensor signal as described above before operating, regulating, or controlling the at least one component of the medical or dental instrument based on the sensor signal.

[0069] For example, based on the sensor signal, the medical or dental instrument component control can start or stop, accelerate or decelerate the drive or movement of a component of the medical or dental instrument component. Alternatively or additionally, based on the sensor signal, the medical or dental instrument component control can start or stop the emission of electromagnetic radiation from the electromagnetic radiation emitter and / or change the radiation intensity or wavelength of the radiation emitted by the electromagnetic radiation emitter. Alternatively or additionally, based on the sensor signal, the medical or dental instrument component control can start or stop the dispensing of a medium, liquid, water, air, drug, or diagnostic agent.Alternatively or additionally, the medical or dental instrument part control can, based on the sensor signal, start or stop the determination, measurement, recording of a value, in particular by a sensor, or the recording of an image, in particular by a sensor or a camera.

[0070] Preferably, the storage element is connected to the third electrical line, so that the identification and / or operating and / or maintenance data of the medical or dental instrument component can be transmitted via the third electrical line between the control, regulation, or supply unit and the storage element. The third electrical line thus serves to transmit the sensor signal from the at least one sensor and identification and / or operating and / or maintenance data, which advantageously reduces the number of electrical lines in the medical or dental instrument component.

[0071] The medical or dental instrument part preferably comprises a device for processing electrical energy, which is configured to process the electrical energy supplied to the medical or dental instrument part from the common electrical energy source via the first or second common electrical line.

[0072] In particular, the electrical energy processing device is designed to provide electrical energy with constant voltage or direct current. Alternatively, the electrical energy processing device is designed to provide electrical energy with constant current or alternating current.

[0073] The electrical energy processing device can provide processed electrical energy, preferably constant voltage or direct current, for several elements of the electrically powered medical or dental instrument part, for example, for at least two or all of the following elements: the medical or dental instrument part control; at least one sensor; the electromagnetic radiation emitting device; other components.

[0074] Alternatively, the electrical energy processing device is assigned to a single element of the electrically powered medical or dental instrument part and can provide processed electrical energy, preferably constant voltage or direct current, only to that single element to which it is assigned. For example, the electrical energy processing device is assigned to and supplies electrical energy to only one of the following elements of the medical or dental instrument part: the medical or dental instrument part control unit; at least one sensor; the electromagnetic radiation emitting device; or another component.

[0075] The electrical energy processing device may include an AC / DC converter or rectifier. The AC / DC converter is configured, for example, to convert electrical energy with a constant current, supplied by the common electrical power source with a constant current source via the first and second common electrical lines, into electrical energy with a constant voltage. Preferably, the AC / DC converter or rectifier may be formed by electronic components or by an electronic or integrated circuit. Particularly preferably, the AC / DC converter or rectifier is configured or arranged to provide direct current for all electrical components of the medical or dental instrument part, in particular for the medical or dental instrument part control, the at least one sensor, and the electromagnetic radiation emitting device.

[0076] The device for processing electrical energy can include a DC / AC converter or inverter. The DC / AC converter is configured, for example, to convert electrical energy at constant voltage, supplied by the common electrical power source at constant voltage via the first and second common electrical lines, into electrical energy at constant current. Preferably, the DC / AC converter or inverter can be formed by electronic components or by an electronic or integrated circuit.

[0077] An AC / DC converter is preferably assigned only to the device emitting electromagnetic radiation and supplies only the device emitting electromagnetic radiation with a constant current. Particularly preferably, the AC / DC converter assigned only to the electromagnetic radiation source is part of a constant current source assigned only to the electromagnetic radiation source.

[0078] The electrical energy processing device may include a DC / DC converter. The DC / DC converter may preferably be assigned to and / or supply electrical energy to several electrically powered elements of the medical or dental instrument part, for example, at least two or all of the following elements: the medical or dental instrument part control unit; the at least one sensor; the electromagnetic radiation emitting device; and other components.Alternatively or additionally, a DC / DC converter can be provided that is dedicated to and / or supplies electrical energy to only a single electrically powered element of the medical or dental instrument part, for example, only to one of the following elements: the medical or dental instrument part control unit; the at least one sensor; the electromagnetic radiation emitting device; or another component. Preferably, the DC / DC converter can be formed by electronic components or by an electronic or integrated circuit.

[0079] The electrical energy conditioning device may include a filter to compensate, for example, for transmission disturbances in the electrical energy supplied from the common electrical power source via the first and second common electrical lines. Again, the filter may be assigned either to a single electrically powered element of the medical or dental instrument part and filter the electrical energy only for that single element to which it is assigned, or to several or all electrical elements of the medical or dental instrument part and filter the electrical energy for these several or all elements, as described above.

[0080] The medical or dental instrument component preferably comprises a constant current electrical source dedicated solely to the electromagnetic radiation-emitting device and configured to supply only the electromagnetic radiation-emitting device with electrical energy at a constant current. The constant current electrical source is connected to the common electrical power source via the first and second common electrical lines to obtain electrical energy from the common electrical power source for operating the electromagnetic radiation-emitting device. Preferably, the common electrical power source is, or includes, a constant voltage source. Preferably, the constant current electrical source receives electrical energy at a constant voltage or direct current.

[0081] Preferably, the constant current electrical source can consist of electronic components or an integrated circuit. Preferably, the integrated circuit is configured to convert electrical power at constant voltage or direct current into electrical power at constant current or alternating current. Preferably, the constant current electrical source can include a shunt resistor.

[0082] The medical or dental instrument component control is preferably configured to control the electromagnetic radiation output of the electromagnetic radiation-emitting device. Particularly preferably, the medical or dental instrument component control is configured to control the intensity of the electromagnetic radiation emitted by the electromagnetic radiation-emitting device. Particularly preferably, the medical or dental instrument component control is configured to dim the electromagnetic radiation-emitting device, especially to dim the visible light emitted by the electromagnetic radiation-emitting device.Particularly preferably, the medical or dental instrument part control is designed to control the afterglow of the electromagnetic radiation emitting device, in particular the afterglow of the visible light emitted by the electromagnetic radiation emitting device, so that electromagnetic radiation is emitted by the electromagnetic radiation emitting device when another operation of the medical or dental instrument part control is stopped, e.g. the drive of a tool connected to the medical or dental instrument part control and / or the dispensing of a fluid.

[0083] To control the electromagnetic radiation emission of the electromagnetic radiation-emitting device, the medical or dental instrument component control is preferably connected to the constant current electrical source associated with the electromagnetic radiation-emitting device. Particularly preferably, the medical or dental instrument component control is communicatively connected to the constant current electrical source. Particularly preferably, the medical or dental instrument component control is configured to transmit control signals to the constant current electrical source in order to control the emission of electromagnetic radiation by the electromagnetic radiation-emitting device.Preferably, the medical or dental instrument control unit and the electromagnetic radiation emitting device, in particular the constant current electrical source, are communicatively connected to each other via electrical control lines. Particularly preferably, the constant current electrical source of the electromagnetic radiation emitting device is configured to receive control signals from the medical or dental instrument control unit and to operate the electromagnetic radiation emitting device according to the received control signals.

[0084] With respect to each embodiment described above and below, and unless expressly described otherwise, the at least one sensor of the medical or dental instrument part may comprise at least one of the following sensors: a mechanical sensor; a capacitive sensor; an inductive sensor; an optical or optoelectronic sensor, in particular an image capture sensor, a camera, or a sensor that detects electromagnetic radiation intensity or wavelength; a magnetic sensor, in particular a Hall sensor or a reed sensor; an acoustic or sound sensor, in particular a microphone or an ultrasonic sensor; a thermoelectric sensor; a piezoelectric sensor; a magnetostrictive sensor; a magnetoresistive sensor; an electrochemical sensor; a resistive sensor, in particular a thermistor; a chemical sensor;an analog sensor, in particular one that outputs an analog signal; a digital sensor, in particular one that outputs a digital signal; a virtual sensor; a MEMS (Micro-Electro-Mechanical System) sensor; a touch-sensitive sensor.

[0085] The at least one sensor can be arranged in at least one of the following positions: inside the medical or dental instrument part; on the outside of the medical or dental instrument part; on one or more components of the medical or dental instrument part; on an outer sleeve or handle sleeve of the medical or dental instrument part; on a bearing of the medical or dental instrument part; or on a circuit board of the medical or dental instrument part. Alternatively, the at least one sensor can be connected to and removed from the medical or dental instrument part, for example, if the at least one sensor is contained in an element that can be coupled to the medical or dental instrument part.

[0086] The at least one sensor may be configured to detect at least one of the following parameters: temperature; speed; torque; force; vibration; pressure of a fluid, in particular a liquid or a gas; humidity; distance; concentration of a substance, in particular in tissue or a body fluid; time; electrical impedance; electrical voltage; electrical current; density of a material; an input, gesture or indication from a user; an input, gesture or indication from a person being treated with the medical or dental instrument part.

[0087] Preferably, the at least one sensor may comprise an accelerometer or a gyroscope. The sensor signals provided by an accelerometer or a gyroscope may be used, in particular, by the medical or dental instrument component controller and / or by the control, regulation, or supply unit to track the position of the medical or dental instrument component, and / or to control the medical or dental instrument component by gesture control, and / or to navigate the medical or dental instrument component.

[0088] According to one embodiment, the first common electrical conductor is connected to a first electrical contact on an end face of the coupling device of the medical or dental instrument part, the second common electrical conductor is connected to a second electrical contact on the end face of the coupling device of the medical or dental instrument part, and the third electrical conductor is connected to a third electrical contact on the end face of the coupling device of the medical or dental instrument part.The first, second, and third electrical contacts can be connected to corresponding contacts of the power supply line to provide electrical energy to the electromagnetic radiation-emitting device and the medical or dental instrument control unit, and to transmit the sensor signal and preferably the identification, operating, and / or maintenance data. The first, second, and third electrical contacts are arranged on a common projection that extends from the end face of the coupling device.

[0089] According to one embodiment, a medical or dental treatment device comprises a medical or dental instrument part as described above; a common electrical power source for supplying the medical or dental instrument part with electrical energy, in particular the electromagnetic radiation emitting device and the medical or dental instrument part control unit, as well as the at least one sensor if the sensor requires energy for operation; and a control, regulating, or supply unit for receiving the sensor signal from the at least one sensor and preferably for exchanging identification and / or operating and / or maintenance data of the instrument part with the medical or dental instrument part control unit. Preferably, the common electrical power source comprises a constant voltage source.

[0090] The control, regulation or supply unit is designed in particular to perform at least one of the following steps: operating the medical or dental instrument part based on the sensor signal received from the at least one sensor; storing the sensor signal received from the at least one sensor; displaying a value or parameter derived from the sensor signal received from the at least one sensor.

[0091] According to one embodiment, a medical or dental treatment device comprises a first medical or dental instrument part, comprising a first electrically powered medical or dental instrument part controller, an electromagnetic radiation emitting device, and at least one first sensor configured to generate a first sensor signal; a second medical or dental instrument part, different from the first medical or dental instrument part, comprising a second electrically powered medical or dental instrument part controller and at least one second sensor configured to generate a second sensor signal; and three electrical lines, comprising a first common electrical line, a second common electrical line, and a third electrical line.The first and second medical or dental instrument parts are connectable to each other for connection via a common supply tube to a common electrical power source and a common control, regulating, or supply unit. The first and second common electrical leads are connected to the first and second medical or dental instrument part controls and to the electromagnetic radiation emission device, and supply the electromagnetic radiation emission device and the first and second medical or dental instrument part controls with electrical energy from the common electrical power source.The third electrical conductor of the three electrical conductors is connected to at least one first and second sensor, so that the first and second sensor signals of at least one first and second sensor can be transmitted via the third electrical conductor to the common control, regulation or supply unit.

[0092] According to this embodiment, the electrical power supply and data transfer between the first medical or dental instrument part, the second medical or dental instrument part, and the common control, regulation, or supply unit are advantageously carried out via the three electrical lines. This minimizes the number of electrical lines between the medical or dental instrument parts and the common control, regulation, or supply unit, which simplifies manufacturing and reduces the production costs of the medical or dental treatment device.

[0093] The first medical or dental instrument part and the second medical or dental instrument part may comprise one of the following, but not the same, elements: a handheld medical or dental element, e.g., a handle, a straight handpiece, an angled or bent handpiece, or a contra-angle handpiece; an adapter; an attachment; a coupling element; a drive element, e.g., a pneumatic motor or an electric motor, in particular for driving a component or tool that can be attached to a handheld medical or dental element; a supply hose, in particular a coupling section of a supply hose designed for coupling to a handheld medical or dental element or to a drive element.

[0094] The first medical or dental instrument part corresponds to the embodiments of the medical or dental instrument parts described above and may include one or more of the elements, features, or functions described in connection with these previous embodiments. In particular, the first medical or dental instrument part control, the electromagnetic radiation emitting device, and the at least one first sensor of the first medical or dental instrument part correspond to the respective embodiments of the medical or dental instrument part control, the at least one sensor, and the electromagnetic radiation emitting device described above and may therefore include one or more of the elements, features, or functions described in connection with these previous embodiments.

[0095] Accordingly, the second medical or dental instrument part control and the at least one second sensor of the second medical or dental instrument part correspond to the embodiments of the medical or dental instrument part controls and the at least one sensor described above and may thus include one or more of the elements, features or functions described in connection with these previous embodiments.

[0096] The invention is explained below with reference to preferred embodiments and the accompanying drawings. Figure 1shows a medical or dental treatment device comprising: a medical or dental instrument part with a lighting device, a storage device and at least one common electrical line for supplying the lighting device and the storage device with electrical energy, a drive device, a supply hose and a control, regulating or supply unit with an electrical energy source for supplying the lighting device and the storage device with electrical energy. Figure 2 shows the medical or dental instrument part of the Figure 1 . Figure 3 Figure 1 shows a schematic representation of a first embodiment of an electrical switching or circuit with at least one common electrical line for supplying a lighting device and a storage device. Figure 4Figure 1 shows a schematic representation of a second embodiment of an electrical switching or circuit with at least one common electrical line for supplying a lighting device and a storage device. Figure 5A-5C show three different embodiments of a lighting device and a sensor for an electrical switching or circuit of the Figures 4 or 5 . Figure 6Figure 1 shows a schematic representation of an embodiment of an electrical circuit that connects a medical or dental instrument part to a control, regulating or supply unit, wherein the electrical circuit has two electrical lines for supplying electrical energy to a radiation-emitting device, a control unit and optionally a sensor of the medical or dental instrument part, and another electrical line for connecting the sensor to the control, regulating or supply unit for transmitting a sensor signal. Figure 7Figure 1 shows a schematic representation of an embodiment of an electrical circuit that connects a medical or dental instrument part to a control, regulating or supply unit, wherein the electrical circuit has two electrical lines for supplying electrical energy to a radiation-emitting device, a control and a sensor of the medical or dental instrument part, and another electrical line for connecting the sensor to the control, regulating or supply unit for transmitting a sensor signal. Figure 8Figure 1 shows a schematic diagram of an embodiment of an electrical circuit that connects a medical or dental instrument part to a control, regulating or supply unit, wherein the electrical circuit has two electrical lines for supplying electrical energy to a radiation-emitting device, a control unit and several sensors of the medical or dental instrument part, and another electrical line for connecting the several sensors to the control, regulating or supply unit for transmitting a sensor signal. Figure 9Figure 1 shows a schematic representation of an embodiment of an electrical circuit that connects a medical or dental treatment device to a control, regulating or supply unit, wherein the electrical circuit has two electrical lines for supplying electrical energy to a radiation-emitting device, several controllers and several sensors of the medical or dental treatment device and another electrical line for connecting the several sensors to the control, regulating or supply unit for transmitting a sensor signal. Figure 10Figure 1 shows a schematic diagram of another embodiment of an electrical circuit that connects a medical or dental treatment device to a control, regulating or supply unit, wherein the electrical circuit has two electrical lines for supplying electrical energy to a radiation-emitting device, several controllers and several sensors of the medical or dental treatment device, and another electrical line for connecting the several sensors to the control, regulating or supply unit for transmitting a sensor signal. Figure 11Figure 1 shows a schematic diagram of another embodiment of an electrical circuit that connects a medical or dental treatment device to a control, regulating or supply unit, wherein the electrical circuit has two electrical lines for supplying electrical energy to a radiation-emitting device, several controllers and several sensors of the medical or dental treatment device, and another electrical line for connecting the plurality of sensors to the control, regulating or supply unit for transmitting a sensor signal.

[0097] The Figure 1Figure 11 shows a medical or dental treatment device 11 comprising a medical or dental instrument part 1, a drive unit 14, a control, regulating or supply unit 4 and a supply hose 15 connecting the instrument part 1 to the control, regulating or supply unit 4. The instrument part 1 is detachably connected to the control, regulating or supply unit 4 via a coupling device 3.

[0098] The one in Figure 2 The enlarged instrument part 1 is formed by a curved handpiece or contra-angle handpiece 17. The handpiece 17 comprises a handpiece head 17A, in which a tool holder for the attachment of a tool, in particular a detachable one, is arranged, and a handle part 17B for holding the handpiece 17 with one hand. The coupling device 3, or at least a part thereof, is arranged at the free or proximal end of the handle part 17B.

[0099] The drive unit 14 comprises, for example, an electric motor or an air motor, which is a separate component detachable from the handpiece 17 (as in Figure 1 The drive unit 14 can be either (as shown) or integrated into the handpiece 17. However, the drive unit 14 can also comprise an impeller, driven by a propellant gas, arranged in the handpiece 17, particularly in the handpiece head 17A. The handpiece 17 can thus be motor-driven and have at least one drive shaft for transmitting a drive movement to the tool, or it can be propellant-driven with an impeller. In both cases, the handpiece 17 comprises at least one drive element that can be rotated to drive a tool that can be connected to the handpiece.

[0100] The handpiece 17 further comprises a lighting device 2, which is preferably arranged on or adjacent to the handpiece head 17A. The lighting device 2 is located on the handpiece head 17A. Figure 2The illustrated lighting device 2 comprises in particular several optical semiconductor elements (LEDs) arranged in a ring around a tool receiving opening 16 of the handpiece head 17A.

[0101] Preferably, openings for dispensing a medium, for example water and / or air, are arranged around the tool receiving opening 16, preferably alternating with the optical semiconductor elements. The openings for dispensing a medium are connected via at least one media line in the handpiece 17 to the control, regulating or supply unit 4 for supplying at least one medium.

[0102] The instrument part 1 or handpiece 17 also includes an electrically powered storage device 5 for storing identification data and / or operating data and / or maintenance data of the instrument part 1 or handpiece 17. The storage device 5 can be located in the handpiece head 17A or in the handle 17B, or a portion of the storage device 5 can be located in both the handpiece head 17A and the handle 17B. Within the handle 17B, the storage device 5, or a portion thereof, is located, for example, at its proximal or free end, in particular in or on the coupling device 3, in a section of the handle 17B directly adjoining the handpiece head 17A, or in a bend 18 of the handle 17B.

[0103] The storage device 5 comprises in particular a storage element 5A and a microcontroller 5B, especially for operating the storage element 5A (see Figures 3and 4 ).

[0104] As can be seen particularly from the Figures 3 and 4 As can be seen, the instrument part 1 or the handpiece 17 further comprises at least one (common) electrical line 6A, 6B, which is provided for supplying the lighting device 2 provided on the handpiece 17 with electrical energy for the operation of the lighting device 2 and for supplying the storage device 5 with electrical energy for the operation of the storage device 5. The at least one (common) electrical line 6A, 6B connects the lighting device 2 and the storage device 5 to an electrical energy source 12, in particular a constant current source, arranged in the control, regulating, or supply unit 4, which is configured to supply the lighting device 2 and the storage device 5 with electrical energy. As can be seen from the Figures 3 and 4As can also be seen, at least one (common) electrical line 6A, 6B extends through the supply hose 15 to or into the control, regulating or supply unit 4.

[0105] The at least one (common) electrical line 6A, 6B thus electrically connects the lighting device 2 and the storage device 5 to the control, regulation, or supply unit 4, in particular its electrical power source 12 and microcontroller 19, thereby forming an electrical switching, control, regulation, or supply circuit. Preferably, the switching, control, regulation, or supply circuit also includes at least one sensor 10, as described in detail below.

[0106] The electrical energy source 12, in the form of a constant current source, supplies the instrument part 1 or the handpiece 17 with electrical energy at a constant current. This provides an optimal energy supply for the illumination device 2, which comprises at least one optical semiconductor. However, the storage device 5, in particular the microcontroller 5B, requires an electrical supply with a constant voltage. For this purpose, a voltage conditioning device 8 associated with the storage device 5, in particular the microcontroller 5B, is provided. This voltage conditioning device is configured to convert the electrical energy received from the electrical energy source 12 (via the electrical line 6A, 6B) at a constant current into electrical energy at a constant voltage and supply it to the storage device 5.The device 8 for voltage conditioning is arranged in particular in the instrument part 1 or the handpiece 17.

[0107] According to the Figure 3Two (common) electrical lines 6A and 6B are provided for supplying electrical power to the lighting device 2 and the storage device 5, as described above. Additionally, the two electrical lines 6A and 6B are provided for transmitting identification data and / or operating data and / or maintenance data between the storage device 5 and the control, regulating, or supply unit 4, which can be connected to the instrument part 1 or handpiece 17. In other words, no more than the two (common) electrical lines 6A and 6B are provided for supplying electrical power to the lighting device 2 and the storage device 5 and for data transmission. Accordingly, the control, regulating, or supply unit 4 is configured to exchange identification data and / or operating data and / or maintenance data between the instrument part 1 and the storage device 5.

[0108] For the transmission of identification data and / or operating data and / or maintenance data from the storage device 5 to the control, regulation, or supply unit 4, i.e., for reading data from the storage device 5, an electrical switching element 13 associated with the storage device 5 is provided. As described above, the switching element 13 is configured to effect changes in an electrical current parameter, in particular the electrical voltage or the electrical load, especially by short-circuiting a shunt resistor 7. The changes in the electrical current parameter define (digitally) the transmitted data.The control, regulation or supply unit 4, in particular its microcontroller 19, is designed to detect or compensate for changes in the electrical current parameter and to recognize or read out the (digitally) transmitted identification data and / or operating data and / or maintenance data from it.

[0109] The instrument part 1 or handpiece 17 further includes a shunt resistor 7, which is configured to process changes in electrical current for the transmission of identification data and / or operating data and / or maintenance data between the storage device 5 and the control, regulation, or supply unit 4, which can be connected to the instrument part 1. As described above, the shunt resistor 7 is intended for storing data in the storage device 5, in particular for transmitting data from the control, regulation, or supply unit 4 to the storage device 5.

[0110] Another shunt resistor 20 is assigned to the control, regulation or supply unit 4, in particular to the microcontroller 19 of the control, regulation or supply unit 4.

[0111] According to the Figure 4Two (common) electrical lines 6A and 6B are provided for supplying electrical power to the lighting device 2 and the storage device 5, as described above. A separate line 6C, or data line, is provided for transmitting identification data and / or operating data and / or maintenance data between the storage device 5 and the control, regulating, or power supply unit 4, which can be connected to the instrument part 1 or handpiece 17. In other words, three lines are provided for supplying electrical power to the lighting device 2 and the storage device 5 and for data transmission: the two (common) electrical lines 6A and 6B for supplying electrical power and the separate line 6C for transmitting the data, as described above.

[0112] The separate data line 6C can be configured as an electrical line for transmitting electrical (data) signals or as an optical line, for example as a fiber optic cable, for transmitting optical (data) signals. The separate line 6C extends through the instrument part 1 or handpiece 17 and the supply hose 15 to or into the control, regulating, or supply unit 4.

[0113] Electrical contacts 3A, 3B are provided on the coupling device 3 of the instrument part 1 or handpiece 17, in particular on the end face of the coupling device 3, which are connected to the at least one common electrical line 6A, 6B (see Figure 2These detachable electrical contacts 3A, 3B electrically connect the lighting device 2 and the storage device 5 to the control, regulating, or supply unit 4, in particular to its power source 12 and microcontroller 19. If only two common electrical lines 6A, 6B are provided for transmitting electrical power and data, as described above, then only these two electrical contacts 3A, 3B are provided on the coupling device 3. If at least one separate optical or electrical line 6C is provided for transmitting identification data and / or operating data and / or maintenance data, then a further optical or electrical contact 3C is provided, which is connected to this at least one separate line 6C for data transmission.

[0114] Preferably, the at least one electrical contact or contacts are detachably connected to the control, regulating, or supply unit 4. The at least one electrical contact is, for example, designed as a pin-shaped electrical contact, a spring contact, a sliding contact, or as an annular electrical contact surrounding a component of the coupling device.

[0115] The medical or dental instrument part 1 or handpiece 17 preferably includes at least one sensor 10 configured to detect an operating state of the instrument part 1 or handpiece 17 and to generate a sensor signal. The sensor 10 comprises, for example, a temperature sensor or a speed sensor for measuring the rotational speed of a drive element of the instrument part 1 / handpiece 17. Figures 5A - 5C Different arrangements of sensor 10 are shown.

[0116] The at least one sensor 10 is electrically connected to the at least one electrical line 6A, 6B, so that the sensor signal of the sensor 10 and / or electrical energy for operating the sensor 10 can be transmitted via the at least one electrical line 6A, 6B.

[0117] The at least one sensor 10 is preferably also electrically connected to the storage device 5, in particular the microcontroller 5B, so that a sensor signal from the sensor 10 can be forwarded to the storage device 5. The storage device 5, in particular the microcontroller 5B, is optionally configured (1) to forward the (analog) sensor signal from the sensor 10, preferably to the control, regulation, or supply unit 4, in particular to its microcontroller 19, or (2) to convert the analog sensor signal into a digital signal and forward it to the control, regulation, or supply unit 4, in particular to its microcontroller 19, or (3) to receive and process the (analog) sensor signal from the sensor 10 and to operate, regulate, or control the instrument part 1 / handpiece 17 or a component thereof based on the sensor signal.The forwarding of the sensor signal to the control, regulation or supply unit 4 according to (1) or (2) preferably takes place via at least one of the lines 6A, 6B, 6C.

[0118] In the embodiment of the Figure 5A The sensor 10, preferably a sensor for measuring rotational speed, is electrically arranged in series with the lighting device 2. In the embodiment of the Figure 5B The sensor 10, preferably a temperature sensor, is arranged electrically in parallel with the lighting device 2. In both embodiments, the sensor 10 and the lighting device 2 have a common electrical power source 12 and are electrically connected via the electrical lines 6A and 6B.

[0119] In the embodiment of the Figure 5CThe sensor 10, preferably a sensor for measuring temperature, and the lighting device 2 are connected to different electrical energy sources for supplying electrical energy.

[0120] The invention is not limited to the embodiments shown and described. Furthermore, all features of all described and illustrated embodiments can be combined with one another.

[0121] Next, the Figures 6-8 discussed, which show various embodiments of medical or dental treatment devices 11. The ones in the Figures 3 and 4 The elements shown are also in the Figures 6 to 8The following are depicted and bear the same numerals: medical or dental instrument part 1; radiation emission device or illumination device 2; control, regulating, or supply unit 4; control or microcontroller 5B for the medical or dental instrument part; three electrical leads 6A, 6B, 6C; common electrical power source 12; supply tube 15 connecting the instrument part 1 to the control, regulating, or supply unit 4 and carrying electrical leads 6A, 6B, 6C; and microcontroller 19 of the control, regulating, or supply unit 4. All features, functions, or characteristics described above in relation to these elements also apply to those shown in the Figures 6 to 8 The elements shown apply.

[0122] The medical or dental instrument part 1 may preferably be a medical or dental handpiece 17, a medical or dental drive unit or an electric motor 14, a medical or dental adapter, a medical or dental attachment or a medical or dental coupling device, in particular as part of a supply hose 15.

[0123] The Figures 6-8The figures also show at least one sensor 10 configured to generate a sensor signal. The at least one sensor 10 is arranged in or on the medical or dental instrument part 1. Alternatively, the at least one sensor 10 can be connected to and removed from the medical or dental instrument part 1, for example, if the at least one sensor 10 is contained in an element that can be coupled to the medical or dental instrument part 1. The at least one sensor 10 can comprise any sensor described above.

[0124] The three in the Figures 6-8The electrical lines 6A, 6B, 6C shown comprise a first common electrical line 6A and a second common electrical line 6B, which are connected to the medical or dental instrument part control 5B and the electromagnetic radiation emitting device 2 and are configured to supply electrical energy from the common electrical energy source 12 to the electromagnetic radiation emitting device 2 for operation and to the medical or dental instrument part control 5B for operation. If the at least one sensor 10 requires a power supply for operation, it is also supplied with electrical energy from the electrical energy source 12 via the common electrical lines 6A, 6B. In addition, one of the electrical lines 6A, 6B, according to the Figures 6-8electrical wire 6B, as ground wire.

[0125] The third electrical line 6C of the three electrical lines connects the medical or dental instrument part control 5B to the control, regulation or supply unit 4, in particular to the microcontroller 19. The medical or dental instrument part control 5B can have a memory element 5A (see Figures 3 , 4) which is configured to store at least one of the identification, operational, or maintenance data of the medical or dental instrument part 1 and / or of another instrument part that is coupled or can be coupled to the medical or dental instrument part 1. The third electrical line 6C is configured for data transmission, in particular of identification, operational, or maintenance data, between the medical or dental instrument part controller 5B and the control, regulation, or supply unit 4, in particular the microcontroller 19.

[0126] The third electrical line 6C connects at least one sensor 10 to the control, regulation, or supply unit 4, in particular to the microcontroller 19, so that a sensor signal from the at least one sensor 10 or data based on a sensor signal can be transmitted to the control, regulation, or supply unit 4 via the third electrical line 6C. As shown in the Figures 6-8 As can be seen, the sensor signal from at least one sensor 10 is transmitted via a data or signal line 6D to the medical or dental instrument control unit 5B, from where it is forwarded to the control, regulation, or supply unit 4. As described above, the instrument control unit 5B can either be configured to only transmit the sensor signal or to store and / or process the sensor signal before transmitting it to the control, regulation, or supply unit 4.

[0127] The electrical lines 6A, 6B, 6C, preferably also line 6D and / or other electrical lines, can be part of a bus system, in particular a CAN, Flex Ray, Lin, SPI or I 2< C bus system, of medical or dental treatment devices 11.

[0128] The common electrical power source 12 is arranged in and / or forms part of the control, regulation, or supply unit 4. Preferably, the common electrical power source 12 consists of or is formed by a constant voltage source. Accordingly, the electrical power source 12 supplies the medical or dental instrument part 1, in particular the electromagnetic radiation emission device 2 and the medical or dental instrument part control 5B, and optionally the at least one sensor 10, with electrical energy in the form of constant voltage or direct current.

[0129] The Figures 6-8 Figure 1 also shows a first electrical energy processing device 21. The first electrical energy processing device 21 can include an electrical current transformer. Depending on the electrical power supplied by the power source 12, the current transformer can include a DC / DC converter, an AC / DC converter, or an electronic circuit for converting electrical power.

[0130] The first device for processing electrical energy 21 is preferably arranged in the medical or dental instrument part 1 such that it processes the electrical energy supplied by the electrical energy source 12 for several or all electrically powered elements of the medical or dental instrument part 1. Accordingly, in the Figures 6-8the first electrical energy processing device 21 provides electrical energy at least for the medical or dental instrument part control 5B and the electromagnetic radiation emitting device 2, and optionally for the at least one sensor 10 if it requires an energy supply for its operation.

[0131] Preferably, the electrical power source 12 supplies electrical energy at a constant voltage or direct current to the electrical energy conditioning device 21, which includes a DC / DC converter. The DC / DC converter is configured to convert the voltage level of the electrical power from the electrical power source 12 into a different voltage level. The electrical energy conditioning device 21 may alternatively or additionally include a filter to compensate for transmission disturbances in the electrical energy supplied by the common electrical power source 12 via the first and second common electrical lines 6A, 6B. Electrical current, exhibiting this different voltage level and / or filtered, is then supplied to several or all of the electrically powered elements of the medical or dental instrument part 1.

[0132] The Figures 6-8They additionally show a second electrical energy processing device 22, which is assigned only to the medical or dental instrument control unit 5B and / or is configured to process electrical energy that is supplied only to the medical or dental instrument control unit 5B. The second electrical energy processing device 22 may include an electrical power converter. Depending on the electrical power supplied to the medical or dental instrument control unit 5B, the electrical power converter may include a DC / DC converter, an AC / DC converter, or an electronic circuit for converting the electrical power.

[0133] Preferably, the electrical energy supplied to the medical or dental instrument control unit 5B, particularly by the first electrical energy conditioning device 21, is direct current. Accordingly, the second electrical energy conditioning device 22 comprises a DC / DC converter or is a DC / DC converter configured to convert the voltage level of the supplied electrical energy into a different voltage level corresponding to the voltage level required by the medical or dental instrument control unit 5B. Electrical energy at this different voltage level is then supplied to the medical or dental instrument control unit 5B.

[0134] The radiation-emitting device 2 preferably comprises at least one optical semiconductor element or a light-emitting diode (LED). LEDs require a constant current electrical power supply for optimal operation. Therefore, the medical or dental instrument parts 1 of the Figures 6-8 A constant current source 23 is configured to supply the radiation-emitting device 2 with a constant electric current. The constant current source 23 is exclusively assigned to and / or supplies electrical energy only to the radiation-emitting device 2.

[0135] The electrical energy for the radiation source 2, which is supplied in particular by the first electrical energy conditioning device 21, is preferably direct current. The constant current source 23 can also be configured to adjust the current required by the radiation emission device 2. Preferably, the constant current source 23 comprises electronics or an integrated circuit 24 configured to convert and / or adjust the current for the radiation emission device 2 (see Figure 6 ).

[0136] The constant current source 23 can also include a shunt resistor 25 (see Figure 6The shunt resistor 25 is preferably designed to monitor the current for the radiation emission device 2, in particular for the at least one optical semiconductor element. Specifically, the shunt resistor 25 prevents the radiation emission device 2 from being supplied with an excessively high current.

[0137] Now we will turn to the exemplary embodiment of the Figure 6 Reference is made to: The medical or dental treatment device 11 of the Figure 6The device has a single sensor 10, which is connected to the medical or dental instrument control unit 5B via data or signal lines 6D. The sensor signals from the single sensor 10 are transmitted via the medical or dental instrument control unit 5B and line 6C to the control, regulation, or power supply unit 4, in particular the microcontroller 19. The sensor signals from the single sensor 10 can be stored or processed by the medical or dental instrument control unit 5B as described above. The medical or dental instrument control unit 5B can supply the sensor 10 with electrical energy as described above, preferably via lines 6D, which are thus configured as common lines and / or for the transmission of sensor signals and electrical energy.

[0138] The constant current source 23 supplies the radiation source 2 with electrical energy at a constant current.

[0139] With reference to Figure 7 The sensor 10 is supplied with electrical energy directly here, i.e., not via the medical or dental instrument part control 5B as in Figure 6 Sensor 10 is associated with an electrical energy conditioning device 26, wherein the energy is supplied from the common electrical energy source 12 via the common electrical lines 6A, 6B to provide sensor 10 with the electrical energy it requires. The electrical energy conditioning device 26 includes, for example, a DC / DC converter.

[0140] Accordingly, line 6D serves purely as a signal or data line for transmitting the sensor signals from sensor 10 to the medical or dental instrument control unit 5B. The sensor signals from sensor 10 are transmitted via the medical or dental instrument control unit 5B and line 6C to the control, regulation, or supply unit 4, in particular the microcontroller 19. The sensor signals from sensor 10 can be stored or processed by the medical or dental instrument control unit 5B as described above.

[0141] The medical or dental treatment device 11 from Figure 8The system comprises several sensors 10. The sensors 10 can be of the same type and / or sensors that measure the same property. Alternatively, at least one of the several sensors 10 can be a sensor of a different type and / or a sensor that measures a different property. Preferably, each sensor of the several sensors 10 is of a different type and / or measures a different property.

[0142] At least one of the several sensors 10 is supplied with electrical energy directly, i.e., not via the medical or dental instrument part control 5B as in Figure 6Each sensor 10 is associated with a device for processing electrical energy 26, which is supplied from the common electrical energy source 12 via the common electrical lines 6A, 6B, in order to supply the sensor 10 with the electrical energy it requires. The device for processing the electrical energy 26 includes, for example, a DC / DC converter. Preferably, several or all sensors of the plurality of sensors 10 are directly supplied with electrical energy.

[0143] Alternatively, at least one sensor from the multitude of sensors 10 is supplied with electrical energy via the medical or dental instrument part control 5B and the line 6D, as with reference to Figure 6 described.

[0144] Line 6D serves as a signal or data line for transmitting the sensor signals of at least one sensor, or several or all sensors of the plurality of sensors 10, to the medical or dental instrument control unit 5B. The sensor signals are transmitted via the medical or dental instrument control unit 5B and line 6C to the control, regulation, or supply unit 4, in particular the microcontroller 19. The sensor signals can be stored or processed by the medical or dental instrument control unit 5B as described above.

[0145] To control the electromagnetic radiation emission of the electromagnetic radiation emission device 2, e.g., the wavelength or intensity, the medical or dental instrument component control 5B is connected to the constant current electrical source 23 associated with the electromagnetic radiation emission device 2 via electrical control lines 27. The medical or dental instrument component control 5B is configured to transmit control signals via the control lines 27 to the constant current electrical source 23 in order to control the emission of electromagnetic radiation by the electromagnetic radiation emission device 2. The constant current electrical source 23 of the electromagnetic radiation emission device 2 is configured to receive the control signals and to operate the electromagnetic radiation emission device 2 according to the received control signals.

[0146] The electromagnetic radiation emission device 2 can comprise multiple radiation emission sources, e.g., LEDs, wherein the medical or dental instrument part control 5B can be configured to control at least one of the multiple radiation emission sources. The multiple radiation sources can preferably comprise a first and a second radiation source emitting a first and a second, different wavelength, in particular wavelengths for diagnosis, e.g., for the detection of dental caries, calculus, or plaque, and wavelengths to improve visibility for a user, wherein the medical or dental instrument part control 5B is configured to alternately activate the emission of electromagnetic radiation from the first or second radiation source.

[0147] Although not shown in the figures, the control of the electromagnetic radiation emission of the electromagnetic radiation emitting device 2 by the medical or dental instrument part control 5B via electrical control lines 27 can also be implemented in the medical or dental treatment devices 11 of the Figure 6 and 7 to be realized.

[0148] It will now be referred to as Figures 9 to 11Reference is made to the figures. These figures show exemplary embodiments of medical or dental treatment devices 11 with several medical or dental instrument parts 1, 1C, 1D. The medical or dental treatment device 11 can comprise a different number of medical or dental instrument parts 1, 1C, 1D, for example, two, three, four, five, or more. These medical or dental instrument parts 1, 1C, 1D are or can be connected to one another, preferably detachably, to form a medical or dental treatment device 11. A physical view of such a medical or dental treatment device 11 is shown in Figure 1 depicted.

[0149] The in the Figures 3 , 4 and 6 to 8 The elements shown are also in the Figures 9 to 11represented and labelled with the same numbers. All features, functions, or properties discussed above in connection with these elements also apply to those in the Figures 9 to 11 The elements shown apply.

[0150] The medical or dental instrument parts 1, 1C, 1D, particularly when connected to one another, are connected via the supply tube 15 to the (common) control, regulating, or supply unit 4 in order to transmit or exchange at least one of the following: electrical energy; mechanical energy; a fluid; a medium; a substance; signals or data. Transmission lines and / or tubes, in particular electrical lines 6A, 6B, 6C, therefore extend from the control, regulating, or supply unit 4 through the supply tube 15 to at least one of the medical or dental instrument parts 1, 1C, 1D. These lines may be optical or electrical.

[0151] Alternatively, cables and / or pipes are sufficient for transmission, in particular electrical cables 6A, 6B, 6C, from the control, regulating or supply unit 4 through the supply hose 15 to several or all medical or dental instrument parts 1, 1C, 1D.

[0152] The electrical lines 6A, 6B, 6C are preferably part of a bus system, in particular a CAN, FlexRay, LIN, SPI or I²C bus system, wherein several components of the medical or dental instrument parts 1, 1C, 1D, which are designed to receive electrical energy and / or to communicate with each other and / or with a (common) control, regulation or supply unit 4, are connected and communicate and / or are supplied with energy via the electrical lines 6A, 6B, 6C. The several components of the medical or dental instrument parts 1, 1C, 1D can, for example, include one or more electromagnetic radiation emitting devices 2, one or more medical or dental instrument part controllers 5B, one or more storage elements 5A, and one or more sensors 10.The components of these multiple components can be arranged either in a single medical or dental instrument part 1, 1C, 1D or in several medical or dental instrument parts 1, 1C, 1D which are connected or can be connected to form medical or dental treatment devices 11.

[0153] According to a particularly preferred embodiment, the medical or dental instrument part 1 can comprise a medical or dental handpiece 17, particularly as described above; the medical or dental instrument part 1C can comprise a medical or dental drive unit or an electric motor 14, particularly as described above; and the medical or dental instrument part 1D can comprise a medical or dental coupling device. The medical or dental coupling device 1D can either be formed integrally with the supply tube 15 or be a separate part that is detachably connected to the supply tube 15.

[0154] However, it is expressly noted that at least one of the medical or dental instrument parts 1, 1C, 1D may have a different function and / or at least one other component. For example, the medical or dental treatment device 11 may comprise a medical or dental instrument part 1 with an electromagnetic radiation emission device 2 and an optical sensor 10, in particular a camera, and a medical or dental instrument part 1C or 1D with at least one further sensor 10.

[0155] The medical or dental instrument part 1 of the Figure 9 and the medical or dental instrument part 1 of the Figure 10The components include those described above or equivalent components described above: radiation emission device or illumination device 2; medical or dental instrument part control or microcontroller 5B; electrical lines 6A, 6B, 6C; sensor 10; first electrical energy conditioning device 21; second electrical energy conditioning device 22; constant current electrical source 23 of the electromagnetic radiation emission device 2 with electronics 24 and shunt resistor 25; electrical control lines 27. The sensor 10 is connected to the medical or dental instrument control or microcontroller 5B via line 6D, the line 6D being configured either solely for transmitting sensor signals or additionally for transmitting electrical energy to the sensor 10, depending on the type of sensor.

[0156] The medical or dental instrument part 1C of the Figure 9and the medical or dental instrument part 1C of the Figure 10 The components include those described above or equivalent components described above: medical or dental instrument part control or microcontroller 5C; electrical lines 6A, 6B, 6C; sensor 10C; at least one device for generating electrical energy 21, 22. The sensor 10C is connected to the control or microcontroller 5C for medical or dental instruments via line 6D, the line 6D being configured, depending on the type of sensor, either solely for transmitting sensor signals or additionally for transmitting electrical energy to the sensor 10.

[0157] The medical or dental instrument part 1D of the Figure 9The device comprises a coupling device, which is preferably formed integrally with the supply hose 15. According to this embodiment, the medical or dental instrument part 1D comprises only the electrical lines 6A, 6B, 6C.

[0158] The medical or dental instrument part 1D of the Figure 10 comprises a coupling device that can either be formed integrally with the supply hose 15 or be a separate device that is detachable from the supply hose 15. The medical or dental instrument part 1D of the Figure 10The system comprises components described above or equivalent to the components described above: medical or dental instrument control unit or microcontroller 5D; electrical lines 6A, 6B, 6C; multiple sensors 10D; and at least one electrical energy processing device 21, 22. The sensors 10D are connected to the medical or dental instrument control unit or microcontroller 5D via the lines 6D, each corresponding line 6D being configured to transmit either only sensor signals or additionally electrical energy to one of the multiple sensors 10, depending on the type of sensor.

[0159] The medical or dental instrument part 1 of the Figure 11comprises components described above or equivalent to components described above: medical or dental instrument part control or microcontroller 5B; electrical lines 6A, 6B, 6C; multiple sensors 10; at least one electrical energy processing device 21, 22. The sensors 10D are connected to the medical or dental instrument control or microcontroller 5D via the lines 6D, each line 6D being configured to transmit either only sensor signals or additionally electrical energy to one of the multiple sensors 10, depending on the type of sensor.

[0160] The medical or dental instrument part 1C of the Figure 11The assembly comprises components described above or corresponding to the components described above: radiation emission device or illumination device 2; medical or dental instrument part control unit or microcontroller 5C; electrical lines 6A, 6B, 6C; sensor 10; a first electrical energy conditioning device 21; a second electrical energy conditioning device 22; constant current electrical source 23 of the electromagnetic radiation emission device 2 with electronics 24 and shunt resistor 25; electrical control lines 27. The sensor 10 is connected to the control unit or microcontroller 5C for medical or dental instruments via line 6D, the line 6D being configured, depending on the type of sensor, either solely for transmitting sensor signals or additionally for transmitting electrical energy to the sensor 10.

[0161] The medical or dental instrument part 1D of the Figure 11 comprises components described above or equivalent to components described above: medical or dental instrument part control or microcontroller 5D; electrical lines 6A, 6B, 6C; sensor 10D; at least one device for generating electrical energy 21, 22. The sensor 10D is connected to the medical or dental instrument part control or microcontroller 5D via line 6D, the line 6D being configured, depending on the type of sensor, either solely for transmitting sensor signals or additionally for transmitting electrical energy to the sensor 10.

[0162] The medical or dental instrument part 1 and / or 1C made of Figure 11The device may include an optical radiation or light guide to direct the electromagnetic radiation emitted by the electromagnetic radiation-emitting device 2 through the medical or dental instrument part 1 and / or 1C. Thus, the electromagnetic radiation can be emitted from the instrument part 1.

[0163] In the Figures 9-11Each medical or dental instrument part 1, 1C, and 1D is provided with a device for processing electrical energy 21. Alternatively, it is also possible to provide only a single such device 21 per medical or dental treatment device 11, which processes the electrical energy received from the power source 12 and supplies the processed electrical energy via the electrical lines 6A and 6B to all components of the medical or dental treatment device 11 that are supplied with electrical energy, in particular to components 2, 5B, 5C, 5D, and 10. Such a single device 21 is preferably arranged near the supply line 15, in particular in the medical or dental instrument part 1D.Such a single device 21 includes, for example, an AC / DC converter, a rectifier, a DC / AC converter, an inverter, electronics or an integrated circuit that conditions the electrical current accordingly.

[0164] The electrical lines 6A, 6B, 6C of the Figures 9-11 The cables run from the (common) control, regulation or supply unit 4 through the supply hose 15 and each of the medical or dental instrument parts 1, 1C, 1D. The components 2; 5B; 10; 21; 22; 23; 5C; 10C; 5D, 10D are connected to the electrical lines 6A, 6B, 6C, preferably via electrical branch lines, and receive electrical power and / or communicate via the electrical lines 6A, 6B, 6C.

[0165] Communication via the electrical lines 6A, 6B, 6C may include at least one of the following elements: transmission of signals from the sensors 10, 10C, 10D to the control, regulating, or supply unit 4; transmission of signals from the control, regulating, or supply unit 4 to at least one of the sensors 10, 10C, 10D, in particular if at least one of the sensors 10, 10C, 10D includes a digital sensor; transmission of identification and / or operating and / or maintenance data from at least one of the medical or dental instrument part controllers 5B, 5C, 5D or the storage element 5A to the control, regulating, or supply unit 4; transmission of data from the control, regulating, or supply unit 4 to at least one of the medical or dental instrument part controllers 5B, 5C, 5D or the storage element 5A; Transmission of signals or data between at least two dental instrument part controllers 5B, 5C, 5D;Transmission of signals or data between at least two sensors 10, 10C, 10D, in particular if one of the sensors 10, 10C, 10D comprises a virtual sensor.

[0166] To carry out the electrical energy transmission and communication described above, the electrical lines 6A, 6B, 6C, sensors 10, 10C, 10D, medical or dental instrument part controls 5B, 5C, 5D, storage element 5A and control, regulation or supply unit 4, in particular microcontroller 19, form a bus system, in particular a bus system as described above.

Claims

1. A medical or dental treatment device (11), characterized by: a first medical or dental instrument part (1, 1C, 1D) with a first medical or dental instrument-part controller (5B, 5C, 5D) that can be operated with electrical energy, a second medical or dental instrument part (1, 1C, 1D) with a second medical or dental instrument-part controller (5B, 5C, 5D) that can be operated with electrical energy, at least one sensor (10, 10C, 10D) arranged in the first or second medical or dental instrument part (1, 1C, 1D) and configured to generate an electrical sensor signal, two shared electrical lines comprising a first shared electrical line (6B) and a second shared electrical line (6C), wherein the first and second medical or dental instrument parts (1, 1C, 1D) are connectable to each other to connect via a shared supply hose (15) to a shared electrical energy source (12) and to a control, regulation or supply unit (4), wherein the first and second shared electrical lines (6B, 6C) are connectable to the first and second medical or dental instrument-part controllers (5B, 5C, 5D) and are configured to transmit electrical energy from the shared electrical energy source (12) to the first and second medical or dental instrument-part controllers (5B, 5C, 5D) for operation of the first and second medical or dental instrument-part controllers (5B, 5C, 5D), and wherein at least one of the first or second shared electrical lines (6B, 6C) is electrically connected to the at least one sensor (10, 10C, 10D) to transmit the electrical sensor signal of the at least one sensor (10, 10C, 10D) via the first or second shared electrical line (6B, 6C) to the control, regulation or supply unit (4).

2. The medical or dental treatment device (11) according to claim 1, characterized in that the at least one sensor (10, 10C, 10D) is connected to the first or second medical or dental instrument-part controller (5B, 5C, 5D) such that the electrical sensor signal of the at least one sensor (10, 10C, 10D) is transmittable via the first or second medical or dental instrument-part controller (5B, 5C, 5D) and at least one of the first or second shared electrical lines (6B, 6C).

3. The medical or dental treatment device (11) according to claim 2, characterized in that the first or second medical or dental instrument-part controller (5B, 5C, 5D) is configured to process and / or store the electrical sensor signal of the at least one sensor (10, 10C, 10D).

4. The medical or dental treatment device (11) according to claim 2 or 3, characterized in that the first or second medical or dental instrument-part controller (5B, 5C, 5D) operates, regulates, or controls at least one component of the first or second medical or dental instrument part (1, 1C, 1D) based on the electrical sensor signal.

5. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the first medical or dental instrument-part controller (5B, 5C, 5D) comprises a memory element (5) for storing identification data and / or operating data and / or maintenance data of the first medical or dental instrument part (1, 1C, 1D), wherein the first memory element (5) is connected to at least one of the first or second shared electrical lines (6B, 6C) such that the identification data and / or operating data and / or maintenance data of the first medical or dental instrument part (1, 1C, 1D) are transmittable via at least one of the first or second shared electrical lines between the shared control, regulation or supply unit (4) and the first memory element (5).

6. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the second medical or dental instrument-part controller (5B, 5C, 5D) comprises a memory element (5) for storing identification data and / or operating data and / or maintenance data of the second medical or dental instrument part (1, 1C, 1D), wherein the second memory element (5) is connected to at least one of the first or second shared electrical lines (6B, 6C) such that the identification data and / or operating data and / or maintenance data of the second medical or dental instrument part (1, 1C, 1D) are transmittable via at least one of the first or second shared electrical lines between the shared control, regulation or supply unit (4) and the first memory element (5).

7. The medical or dental treatment device (11) according to any of the preceding claims, characterized by an electrical energy conditioning device (21, 22, 26) configured to condition the electrical energy transmitted from the shared electrical energy source (12) via the first and second shared electrical lines (6B, 6C) to the medical or dental treatment device (11).

8. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the first and second shared electrical lines (6B, 6C) connect the at least one sensor (10, 10C, 10D) to the shared electrical energy source (12) to supply the at least one sensor (10, 10C, 10D) with electrical energy.

9. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the first or second medical or dental instrument-part controller (5B, 5C, 5D) is configured to supply the at least one sensor (10, 10C, 10D) with electrical energy.

10. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the at least one sensor (10, 10C, 10D) comprises at least one of the following sensors: a mechanical sensor; a capacitive sensor; an inductive sensor; an optical or optoelectronic sensor; a magnetic sensor; an acoustic sensor; a thermo-electric sensor; a piezoelectric sensor; a magnetostrictive sensor; a magnetoresistive sensor; an electrochemical sensor; a resistive sensor; a chemical sensor; or a touch-sensitive sensor.

11. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the at least one sensor (10, 10C, 10D) comprises at least one of the following sensors: an analog sensor; a digital sensor; a virtual sensor.

12. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the at least one sensor (10, 10C, 10D) comprises an accelerometer or a gyroscope.

13. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the at least one sensor (10, 10C, 10D) comprises: a temperature sensor for measuring the temperature of at least one component of the medical or dental treatment device (11) or of at least one component attached to the medical or dental treatment device (11) or of a workpiece processed by the medical or dental treatment device (11); or a rotational speed sensor for measuring the rotational speed of a drive element of the first or second medical or dental instrument part (1, 1C, 1D) or of a tool connectable thereto.

14. The medical or dental treatment device (11) according to any of the preceding claims, characterized by a control, regulation or supply unit (4) configured to operate the first or second medical or dental instrument part (1, 1C, 1D) based on the electrical sensor signal received from the at least one sensor (10, 10C, 10D).

15. The medical or dental treatment device (11) according to any of the preceding claims, characterized in that the at least one sensor (10, 10C, 10D) is a first sensor arranged in the first or second medical or dental instrument part (1, 1C, 1D) and configured to generate a first electrical sensor signal, wherein the medical or dental treatment device (11) comprises a second sensor (10, 10C, 10D) arranged in the other of the first or second medical or dental instrument parts (1, 1C, 1D) and configured to generate a second electrical sensor signal, and wherein at least one of the first or second shared electrical lines (6B, 6C) is electrically connected to the second sensor (10, 10C, 10D) to transmit the second electrical sensor signal of the second sensor (10, 10C, 10D) to the shared control, regulation or supply unit (4).