Abstract: Embodiments of a medical or dental handpiece are disclosed. A medical or dental handpiece may include a rotatable drive element to drive a tool that can be connected to the handpiece, a rotational speed measuring device which is designed to generate a variable electric rotational speed measurement signal assigned to the rotational speed of the drive element, a lighting device that can be supplied with electric power for emitting radiation, in particular visible light, onto a treatment site, and at least one shared electric line, which is provided for transmitting electric power to the illumination device and the rotational speed measurement signal of the rotational speed measurement device. Further a corresponding method for the operation of a medical or dental handpiece is disclosed.

Abstract: A treatment chamber or treatment carrier for use in a device for treating a medical or dental instrument. The device comprises a housing, which at least partially surrounds the instrument. The device also comprises at least one conductor made of an electrically conductive material layer applied to the housing for converting electrical energy into thermal energy, and at least two electrical contacts embedded in the conductor for supplying the at least one conductor with electrical energy. A treatment device having such a treatment chamber and/or such a treatment carrier is also described.

Abstract: A medical or dental fluid-driven handle with a control or regulation circuit for the control or regulation of the rotational speed of a rotary part to a predetermined rotational speed and methods are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying the drive fluid, and a control or regulation circuit that is designed to control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy. An actuator element is configured to act on the drive fluid and is electrically connected to the electrodynamic converter such that the actuator element is supplied with electrical energy generated by the electrodynamic converter.

Abstract: A medical or dental handpiece comprises a lighting device for the emission of radiation, in particular of visible light, onto a treatment site, a temperature sensor preferably located in the interior of the handpiece, and at least one shared electrical signal line provided in the handpiece for the lighting device and the temperature sensor. The lighting device and the temperature sensor are both operatively connected to the at least one shared electrical signal line. A medical or dental treatment device comprises such a handpiece and a control and/or regulation device electrically connected to the at least one shared electrical signal line provided in the handpiece, which is designed to emit a first electrical signal assigned to the lighting device and a second electrical signal assigned to the temperature sensor.

Abstract: Various medical or dental handpieces having at least one coil for inductive coupling with a second coil and methods for using these handpieces for the transmission of at least one of power, operational data and identification data are described. Also various tool-holding/releasing devices for medical or dental handpieces are described, having at least one shaped element penetrating through a bore in a hollow shaft for accommodating a tool and protruding through the bore into the hollow shaft, a movably arranged locking sleeve cooperating with the shaped element and an operating element for moving the locking sleeve. Some of these tool-holding/releasing devices allow the insertion of the tool into the hollow shaft with different insertion depths.

Abstract: Fluid-operated dynamoelectric converters for medical or dental devices are described. The dynamoelectric converters have: a fluid line which is designed in one piece with an outer sleeve of the dynamoelectric converter and protrudes at its end which faces away from the dynamoelectric converter beyond a connecting end of the medical or dental device; a fluid-operated impeller which is designed in one piece with a rotor sleeve receiving the magnetic element; a one-piece, sleeve-shaped magnetic return element which surrounds the rotor and the electric winding of the stator and has a magnetically conductive material.

Abstract: Methods for controlling and/or regulating of a compressed-gas-operable medical or dental drive device and a control and/or regulating device for performing such methods are described. In one method according to a first embodiment, a rotor of the drive device is operated at an essentially constant rotational speed (n1) by adjusting the gas pressure and/or the flow rate of the compressed gas through a valve and the rotational speed is reduced on reaching a pressure value (p2) of the compressed gas which is lower than the maximum gas pressure (pmax) of the compressed gas. In the case of a method according to a second embodiment, the gas pressure of the compressed gas and the rotational speed of the rotor are altered on reaching a rotational speed limit value (n2, n3) of the rotor by adjusting the valve.

Abstract: A medical or dental handle for driving a medical instrument, comprises a housing with a drive device accommodated therein and/or a supply line for a drive device, a first connection device for detachably connecting a medical or dental instrument and a second connection device for detachably connecting the handle to a media source and/or a drive unit, at least one electric component preferably comprising a light-emitting diode, at least one electric contact and an electric connecting device, which connect electrically the at least one electric component and the at least one electric contact, wherein the electric connecting device comprises a flexible circuit board in the interior of the handle.

Abstract: Embodiments of a medical or dental handpiece are disclosed. A medical or dental handpiece may include a rotatable drive element to drive a tool that can be connected to the handpiece, a rotational speed measuring device which is designed to generate a variable electric rotational speed measurement signal assigned to the rotational speed of the drive element, a lighting device that can be supplied with electric power for emitting radiation, in particular visible light, onto a treatment site, and at least one shared electric line, which is provided for transmitting electric power to the illumination device and the rotational speed measurement signal of the rotational speed measurement device. Further a corresponding method for the operation of a medical or dental handpiece is disclosed.

Abstract: Embodiments of a medical or dental handpiece are disclosed. A medical or dental handpiece may include a rotatable drive element to drive a tool that can be connected to the handpiece, a rotational speed measuring device which is designed to generate a variable electric rotational speed measurement signal assigned to the rotational speed of the drive element, a lighting device that can be supplied with electric power for emitting radiation, in particular visible light, onto a treatment site, and at least one shared electric line, which is provided for transmitting electric power to the illumination device and the rotational speed measurement signal of the rotational speed measurement device. Further a corresponding method for the operation of a medical or dental handpiece is disclosed.

Abstract: Medical or dental instruments, preferably handpieces, can have different temperature-measuring devices for measuring the temperature in the instrument or of at least a part of the instrument. The temperature-measuring devices can be designed, for example, to measure the temperature contactlessly by detection of electromagnetic radiation or to measure the temperature of an interior of the instrument that can be heated by a heat source. The temperature-measuring devices may be designed, for example, as electrical temperature-measuring devices or may have a magnetic material whose magnetic property is a function of temperature and/or has a temperature-dependent course. The temperature-measuring device may have, for example, an electrical switching device and a signal device wherein the signal device is switched at least between a first signal condition and a second signal condition when a temperature limit value is reached or exceeded or is underrun.

Abstract: A treatment chamber or treatment carrier for use in a device for treating a medical or dental instrument. The device comprises a housing, which at least partially surrounds the instrument. The device also comprises at least one conductor made of an electrically conductive material layer applied to the housing for converting electrical energy into thermal energy, and at least two electrical contacts embedded in the conductor for supplying the at least one conductor with electrical energy. A treatment device having such a treatment chamber and/or such a treatment carrier is also described.

Abstract: A quick stop drilling tool for use with a medical or dental treatment device includes a drilling tool having a body extending between a connection end and a working end and having a longitudinal extension along a longitudinal axis of the drilling tool. The drilling tool has a hollow outer shell in which a probe is held that can be moved along the longitudinal axis so that a part of the probe can be moved out of the shell through an opening. The probe is designed as an elongated pin, and its first end facing the connection end is held in the interior of the hollow outer shell. An electromagnetic sensor for detecting relative movement between the shell and the probe is arranged along the longitudinal extension of the body. The drilling tool has a channel for a treatment fluid extending along the longitudinal axis.

Abstract: Medical or dental instruments, preferably handpieces, can have different temperature-measuring devices for measuring the temperature in the instrument or of at least a part of the instrument. The temperature-measuring devices can be designed, for example, to measure the temperature contactlessly by detection of electromagnetic radiation or to measure the temperature of an interior of the instrument that can be heated by a heat source. The temperature-measuring devices may be designed, for example, as electrical temperature measuring devices or may have a magnetic material whose magnetic property is a function of temperature and/or has a temperature-dependent course. The temperature-measuring device may have, for example, an electrical switching device and a signal device wherein the signal device is switched at least between a first signal condition and a second signal condition when a temperature limit value is reached or exceeded or is underrun.

Abstract: A treatment chamber or treatment carrier for use in a device for treating a medical or dental instrument. The device comprises a housing, which at least partially surrounds the instrument. The device also comprises at least one conductor made of an electrically conductive material layer applied to the housing for converting electrical energy into thermal energy, and at least two electrical contacts embedded in the conductor for supplying the at least one conductor with electrical energy. A treatment device having such a treatment chamber and/or such a treatment carrier is also described.

Abstract: A cleaning or care device for the cleaning or care of medical or dental instruments, having a cleaning or care chamber in which at least two connections for the instruments to be cleaned are provided, and a supply device for supplying the at least two connections with a cleaning or care agent. The at least two connections and the supply device can be moved relative to one another in such a way that one of the connections can be connected to the supply device and supplied with a cleaning or care agent, while another of the connections is not connected to the supply device and cannot be supplied with a cleaning or care agent. A corresponding method for the cleaning or care of medical or dental instruments with such a cleaning or care device is also described.

Abstract: A method and device for programming a cordless handpiece used for root canal treatment and having a first memory and a tool holder for a treatment tool are described. The method includes providing a first data volume having a plurality of data sets in a second memory separate from the first memory, each of the data sets comprising at least one parameter assigned to the cordless handpiece and/or to the treatment tool, selecting at least some of the data sets from the first data volume in the second memory, transmitting the selected data sets from the second memory to the first memory of the handpiece, and selecting a data set from the updated first memory for operation of the handpiece.

Abstract: A medical, dental or surgical instrument comprising a substrate on at least part of the instrument with a rough surface structure and a layer which is applied to or deposited on the substrate in such a way that the rough surface structure of the substrate is at least not completely smoothed by the layer or the roughness is increased, wherein the layer applied to or deposited on the substrate is embodied as a glass-ceramic layer. In addition, for producing such an instrument or part thereof is described.

Abstract: Different mechanical drive devices for a medical, dental or surgical tool are described that are designed to put the tool into an oscillating, rotational motion, wherein the oscillating, rotational motion comprises an alternating rotation of the tool by a first angle of rotation in a first rotational direction and by a second angle of rotation in a second rotational direction substantially opposed to the first rotational direction, wherein the first and second angles of rotation may have different values, so that during multiple sequential rotations in the first and second rotational directions, the tool cumulatively experiences a rotational motion in a preferred direction.