Kaltenbach & Voigt Gmbh & Co.

Kaltenbach + Voigt Gmbh

Kaltenbach & Voight, Gmbh & Co.

Kaltenbach & Voight Gmbh

Kavo Dental Gmbh

Kultenbach & Voigt Gmbh

Bernhard Kuhn

Bernd Gugel

Hans Loge

Eugen Eibofner

Thomas Classen

Thomas Claßen

Markus Haarmann

Gerd Lohn

Erich Bareth

Thomas Braun

Heinrich Reich

Bernhard Schilling

Jurgen Hoffmeister

Alexander Klee

Thomas Claβen

Bernhard Lingenhöle

Eugen Bochtler

The invention relates to a dental tool having a shank region, which is formed for coupling to a dental handpiece, and also having a work region, which is connected to the shank region. In this case, the shank region of the dental tool is formed so that there is the possibility of latchable insertion and removal without actuation. In particular, at least the shank region can consist of plastics material. As a result, inter alia facilitated handling of the tool and inexpensive production of the tool are rendered possible.

Dental tool and dental system

The invention relates to a dental tool having a shank region, which is formed for coupling to a dental handpiece, and also having a work region, which is connected to the shank region. In this case, the shank region of the dental tool is formed so that there is the possibility of latchable insertion and removal without actuation. In particular, at least the shank region can consist of plastics material. As a result, facilitated handling of the tool and inexpensive production of the tool are rendered possible.

In the case of a dental hand instrument having a grip sleeve and also a head housing arranged at the front end of the grip sleeve for receiving or holding a treatment instrument, the head housing has a substantially cylindrical hollow space which is connected by way of at least one connecting bore to a connection region pointing to the grip sleeve, wherein the connecting bore is coupled, at its end facing the grip sleeve, to a media line extending through the grip sleeve, and wherein the inner wall region of the head housing enclosing the hollow space has a recess into which the connecting bore opens.

Dental hand instrument and head housing therefor

A process and also to a system for cleaning and maintaining a medical hand-held instrument, in particular a dental hand-held instrument, with an elongate grip sleeve in which elements are arranged which pertain to a drive arrangement and which are, in particular, rotatably supported, for example a shaft. For the purpose of cleaning and maintaining the hand-held instrument different media are conducted through it. In this connection a first medium, for example oil, is conducted merely through a power-transmission region surrounding the elements of the drive arrangement, whereas, on the other hand, a second medium, for example a cleaning agent, is conducted additionally also through at least one further cavity within the hand-held instrument.

Process and system for cleaning and maintaining and for operating a medical hand-held instrument

A dental hand instrument having an elongate handle sleeve, at the front end of which there is disposed a tool holder for holding a treatment tool, for example a dental drill, there is disposed inside the handle sleeve a driving mechanism for driving the treatment tool, the driving mechanism having at least two rotatably mounted shafts that are coupled to each other, and a sealing element is disposed in the coupling region of the two shafts inside the handle sleeve.

Dental hand instrument having an elongate handle sleeve

In a dental, dental-medical or dental-technical handpiece, having an elongate grip sleeve there are provided at the rearward end of the grip sleeve coupling elements for the connection of the handpiece to a supply hose to be connected with a dental supply arrangement, and there are provided at the forward end of the grip sleeve a head section with a tool receiver for mounting a tool to be put into rotation. The handpiece further has an electric motor for driving a tool held by the tool receiver, which motor is completely integrated into the grip sleeve such that grip sleeve and motor form a unit.

Electric motor for use in a sterilizable dental handpiece

Dental, dental-medical or dental-technical handpiece with electric motor

A coupling for the production of a releasable connection between a medical, in particular a dental, handpiece part and a supply hose and for the transmission of current and if applicable further supply media from the supply hose to the handpiece part. The coupling includes two coupling elements wherein one of the two coupling elements may be arranged on the supply hose and the other on the handpiece part. A guide element is arranged on one of the two coupling elements, which guide element can be inserted into an insertion opening formed on the other coupling element. In a certain relative rotational position of the two coupling elements a pushing element having current contacts engages into a corresponding recess of the second coupling element, wherein with inserted or at least partly inserted guide element the two coupling elements can be rotated relative to one another around an axis of rotation before attainment of the predetermined coupling position. Thereby there is formed a reliable bayonet coupling which makes possible a particularly easy handling.

Coupling between a medical handpiece part and a supply hose

A medical, in particular dental-medical, handpiece, having a shaft, having a forward shaft section and a rearward shaft section, which defines an obtuse angle with regard to each other, having a working head at a forward end of the forward shaft section, which is tapered towards the working head, and having a drive shaft in the shaft, which drive shaft has a forward drive shaft section and a rearward drive shaft section, which stand in drive connection with one another, the forward end of the forward drive shaft section standing in drive connection with a tool holder moveably mounted in the working head, and the forward drive shaft section being mounted in a receiving sleeve. The receiving sleeve can be screwed in, from the rear, into the forward shaft section.

Medical handpiece having an angled shaft

Dental instrument

In medical or dental handpiece having a treatment tool driven by means of a drive part via a transmission arrangement, the transmission arrangement contains at least two planetary transmission stages connected one after another, which each have a sun gear mounted on a drive shaft, a planetary gear carrier having a plurality of uniformly distributed planetary gears cooperating with the sun gear, and a hollow gear, fixed to a housing, surrounding the planetary gears, having an inner toothing, wherein the planetary gear carrier of at least one transmission stage serves as drive shaft and carrier of the sun gear of the following transmission stage. In order to increase the stability of the arrangement the drive shaft for each transmission stage is extended beyond the sun gear driven thereby and in that the planetary gear carrier belonging to this sun gear is arranged rotatably on the extension.

Medical or dental tool holder comprising a multi-step transmission arrangement

The invention relates to a medical or dental medical handpiece () having an elongate shaft (), which has in its front end region a tool holder () having a lateral insertion opening () for a tool (), and having a rearward and a forward shaft section () which include an obtuse angle (W) which is open to the side away from the insertion opening (), wherein in the shaft sections () there is rotatably mounted in each case a drive shaft section (), which stand in driving connection with one another by means of gears meshing with one another, and wherein the forward shaft section () stands in driving connection with the tool holder () by means of gears () meshing with one another. In order to improve handling, the angle (W) include between the middle axis () of the insertion opening () and the middle axis () of the forward shaft section () is greater than 90&#xb0; and the forward gear () of the forward drive shaft section () meshes on its side away from the insertion opening () with the gear () of the tool holder ().

Medical or dental handpiece with a rear and a front shaft section that form an obtuse angle

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.

Medical or dental-medical handpiece having at least one rotary part

The invention relates to a medical or dental-medical treatment which at its rearward end has a coupling element for coupling on to a matching coupling element of a flexible supply line, and in its forward region has a holder device for a tool, the handpiece being of a rearward and a forward handpiece section which are connected with one another by means of a plug-in connection and are fixed on one another by means of a latching device which has a latching arm extending approximately axis-parallel and which is transversely elastically bendable, which latching arm is arranged on the one plug-in connection part and is latched in its free end region with a latching element arranged on the other plug-in connection part . For the purpose of improving the connection between the rearward and the forward handpiece section the latching device at the same time axially fixes an insert part of the handpiece, which insert part sits in a plug-in recess of the one and/or of the other plug-in connection part.

Medical or dental-medical handpiece having a rearward and a forward handpiece section

The invention relates to a medical or dental-medical handpiece having a rotary part which is rotatably mounted in a bearing bush by means of a roller bearing having an inner ring and an outer ring. In order to improve the handpiece with regard to an axial limiting of the roller bearing there is arranged in the inner surface of the bearing bush or in the outer surface of the outer ring a first ring groove in which there sits a securing ring which projects out of the first ring groove and bears at least with its one side on a shoulder surface of the respective radially oppositely lying part.

Growing community of inventors

Biberach, Germany

Bernhard Kuhn