Abstract: The invention relates to a medical or dental-medical instrument (2) having a memory element (10p) for identification and/or operational parameter data. IN order to extend the range of possible applications of the instrument, the memory element (10p) is constituted for the overwriting of the data by other data.

Abstract: The invention relates to a medical or dental-medical handpiece having a rotary part, in particular a turbine rotor. In order to improve the handpiece with regard to small construction, running noise and economical construction, there is provided a roller bearing for the purpose of mounting the rotary part, having at least two roller body rows arranged next to one another.

Abstract: The invention relates to a medical or dental-medical instrument (2) having a memory element (10p) for identification and/or operational parameter data. IN order to extend the range of possible applications of the instrument, the memory element (10p) is constituted for the overwriting of the data by other data.

Abstract: A coating for a handpiece (1) for dental-medical or surgical purposes consists of a hard material layer (11) having a predetermined roughness and of a plastics layer (12), having a reduced wettability, arranged on the hard material layer (11). Through this there is obtained a dirt repellent surface. At the same time handling is improved, since a slipping of the handpiece is avoided.

Abstract: The invention relates to a medical or dental-medical handpiece (3) having a rotary part (12), in particular a turbine rotor (15a). In order to improve the handpiece with regard to small construction, running noise and economical construction, there is provided a roller bearing (21) for the purpose of mounting the rotary part (12), having at least two roller body rows arranged next to one another.

Abstract: A drive system for dental handpieces, having a rotor (12) secured to a motor shaft (11), an anti-friction bearing system (13, 14), including an inner bearing race (17), an outer bearing race (18) and a plurality of rolling elements (19) arranged between the bearing races, and a coupling element (16) for coupling thereto a dental instrument (1) that is to be driven, the rolling elements consisting of a non-electroconductive material.

Abstract: The invention relates to a lighting fixture (18) for a medical or dental handpiece (2), having a lamp which forms with a base (17) a prefabricated constructional unit, the lamp having two conductor wires (34) which are located on two opposing outer sides of the base (17), wherein the lamp is formed by a light-emitting diode (16; 16b). The invention further relates to such a lighting fixture (18) in which the base (17) has a locking device (51) and the light-emitting diode (16b) is held on the base (17) by the locking device (51). Moreover, the invention relates to a method for manufacturing and assembling a lighting fixture for a medical or dental handpiece (29) having a base (17) and a lamp inserted therein.

Abstract: The invention relates to a maintenance apparatus (1) for medical or dental handpieces (17), having a housing (2), which encloses a free maintenance chamber (4) which is accessible by means of a door (5), having a plurality of connection parts (16a, 16b) in the maintenance chamber (4) each for receiving the rearward end of a handpiece (17), having a supply line (18) for a maintenance medium, which branches with supply line branches (18a) to the connection parts (16a, 16b), which branches open out each at a mouth opening (16a1, 16b1) at the associated connection part (16a, 16b), which stands in connection with a drive channel of the connected handpiece (17), having a supply system for supplying the maintenance medium to the connection parts (16a, 16b) and having a control device (51) for control of the supply system, whereby a sensor (S2a to S2d) is associated with each connection part (16a, 16b, 16c), which sensor is activated by means of the handpiece (17) connected with the associated connection part and emi

Abstract: Method and device for the detection of caries in teeth (8). In order, after investigation of a tooth (8), to be able again to find the tooth location with the greatest incidence of caries, the instantaneous measurement value and the peak measurement value--which corresponds to the location with the greatest incidence of caries attack--are displayed. By comparison of the instantaneous measurement value with the peak measurement value the tooth location with the greatest incidence of caries attack can be localised when the instantaneous measurement value coincides with the peak measurement value.

Abstract: In a process for the curing of light-sensitive polymeric compositions by irradiation with light of wavelength suited to the polymeric composition it is proposed that the irradiation be carried out with a light intensity increasing continuously or in stepped form. An apparatus for carrying out said process is further proposed in which the raising of the light intensity is controlled during an irradiation procedure by a control unit (13).

Abstract: A surface disinfectant and cleaning composition includes (a) a biocidal agent selected from the group consisting of glyoxal, glutaraldehyde, and mixtures thereof, (b) 0.001 to 1% by weight of a fluoroaliphatic tenside selected from the group consisting of perfluoroalkanoic acids wherein the alkane residue has 1 to 10 carbon atoms, alkali and ammonium salts thereof, and mixtures thereof, (c) 0.002 to 5% by weight of at least one ultraviolet absorber, (d) 0.001 to 3% by weight of an optical brightener selected from the group consisting of benzotriazole derivatives, stilbene disulfonic acid derivatives, and mixtures thereof, and (e) a solvent selected from the group consisting of water, water-soluble alcohols, and mixtures thereof, and having a pH value of 2.5 to 5.0.

Abstract: A medical or dental handpiece having a grip sleeve formed with an outer gripping surface structure which provides improved grippability. The outer gripping surface structure is formed with alternate grooves and corrugations extending circumferentially around the sleeve and which, in cross-section, are axially spaced from each other. The grooves and corrugations are rounded concavely and convexly, respectively.

Abstract: A process for the cleaning and/or disinfection and maintenance care of an, in particular, hollow or tubular medical treatment instrument, in particular a medical or dental treatment instrument, such as a handpiece, in which the treatment instrument is cleaned and/or disinfected with a preferably liquid cleaning and/or disinfecting agent and is then subjected to maintenance care with a maintenance care agent, is characterized in that, there is used a cleaning agent and/or a disinfecting agent and/or a maintenance care agent, one or more of which agents contains or contain a medium which ensures mixing of the cleaning and/or disinfecting agent with the maintenance care agent.

Abstract: A medical handpiece, and especially a dental handpiece, including a drivable worktool or implement which is rotatably supported with its shaft at one end of the handpiece and which projects from this handpiece end with its operating end. The implement possesses an elongate blind bore-like passageway which communicates with the outside at the work end of the implement through the intermediary of a discharge opening, and with which there is associated a supply line arranged within the handpiece for the infeed of cooling media to at least one radial through-opening of the implement which stands in communication with the elongate passageway; whereby the at least one radial through-opening is sealed with respect to the interior of the handpiece through the intermediary of a seal which encompassing the shaft of the implement and contacts against a wall portion of the handpiece.

Abstract: A tartar-removing or scaling handpiece, which is constituted of an elongated gripping sleeve, having arranged at one end thereof a tartar-removing or scaling implement which includes a bent operating end, wherein the gripping sleeve incorporates a light source arranged at the end thereof proximate the implement which is oriented towards the region of the tartar-removing implement, and which is located at one side adjacent the tartar-removing implement. The tartar-removing implement possesses a shaft connected with the gripping sleeve, to which there is joined the angled or curvilinearly bent operating end of the implement.

Abstract: A tartar-removing dental handpiece, consisting of an elongated gripping sleeve on which there is arranged a vibration generator, which is connected to a vibratable tartar-removing instrument arranged at one end of the gripping sleeve for transmitting vibrations thereto. The gripping sleeve incorporates at least one medium supply conduit which is connected through a coupling member located at the end of the gripping sleeve distant from the instrument to a connecting conduit leading to a medium source.

Abstract: A tartar-removing dental handpiece, constituted of an elongated gripping sleeve having a vibration generator arranged therein which is connected with a vibratable tartar-removing instrument located at one end of the gripping sleeve for transmission of vibrations. The gripping sleeve includes supply media conduits of which one is an energy infeed conduit leading to the vibration generator, and which are connected through the intermediary of a coupling member, which is arranged at the end of the gripping sleeve remote from the instrument, to connecting conduits leading to a medium source.

Abstract: An arrangement for imposing pressure on cleaning media and/or lubricants which are contained as maintenance media in the movable components of medical, particularly dental handpieces, wherein the maintenance medium is adapted to be placed under pressure by a pressure drive acting through an outlet opening of a housing which contains a motion drive for the movable handpiece components, the last mentioned being brought into connection with the outlet opening through an inlet opening in the handpiece. During this pressurization of the maintenance medium, the movable components of the handpiece are placeable into movement through the motion drive of the housing in such a manner, whereby engaging means of the motion drive which are accessible through the outlet opening of the housing can be brought into engagement with cooperating engaging means of the movable components of the handpiece which are accessible through the inlet opening.

Abstract: An arrangement for the dispensing of cleaning and/or lubricating media, which can be placed under pressure in a receptacle, as maintenance media to movable elements containing medical, and particularly dental handpieces. The maintenance medium is forced by means of a pressure drive out of a dispensing orifice of the receptacle through an inlet opening of the handpiece which is attached to the receptacle at the dispensing orifice and whereby, during the forcing of the maintenance medium into the movable elements of the handpiece, they are placeable into motion through a motion drive. The maintenance medium can be formed by liquid cleaning and/or lubricating media, for instance, such as oil.

Abstract: A dental handpiece having a gripping sleeve, a drive aggregate arranged in the handpiece for a dental treatment work tool retained in a head portion, and which includes its own built-in electrical light source. The light source, together with conduits for supply media, is arranged within an intermediate member which is exchangeably mounted between the gripping sleeve and the end member of a supply hose for the media for the handpiece. The light from the light source, with the aid of strand-like light conductors arranged interiorly of the handpiece, is conducted to the region of the handpiece head portion and exits therefrom the gripping sleeve directed towards the tooth treatment worktool, and in which the light source can be switched on and off through the intermediary of a compressed air-driven pneumatic switch device.