W&h Dentalwerk Burmoos Gmbh

Hannes Wagner

Gunter Teufelberger

Karl Schmiedlechner

Christian Pruckner

Norbert Schatz

Karlheinz Eder

Michael Rothenwaender

Josef Spitzauer

Michael Mangelberger

Stefan Putz

Stephan Rauchenzauner

Christoph Heinrich

Hermann Rehrl

Udo Hoermann

Stefan Kapeller

Rainer Sigl

Walter Schuh

Christine Oberascher

Michael ROTHENWÄNDER

Erwin Schimbäck

Gerhard Kaineder

Gunther Teufelberger

Udo Hörmann

A hand instrument, comprising: a tool-holding device for fastening a treatment tool on the hand instrument, a driveshaft for transmitting a driving movement to the tool-holding device and a stroke gear which is designed to induce the tool-holding device in a stroke movement. According to a first embodiment the hand instrument further has a rotary gear which is designed to induce the tool-holding device to a rotational movement, wherein a drive-side element of the rotary gear and a drive-side element of the stroke gear are arranged jointly on the driveshaft. According to a second embodiment the drive-side element of the stroke gear is designed such, that in a complete revolution of the drive-side element of the stroke gear the tool-holding device runs through more than a double stroke. According to another embodiment the drive-side element of the stroke gear is disposed concentrically around an axis of rotation of the driveshaft.

Medical or dental hand instrument

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.

Medical or dental handpiece with inductive coupling

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.

Medical or dental handle

A medical or dental handpiece includes a tool holding/releasing device with a hollow shaft, a first holding unit and a second holding unit. The hollow shaft can be put into a drive motion for holding a treatment tool. The hollow shaft extends along a central axis and has a tool receptacle opening. The second holding unit is separate from the first holding unit and axially offset from the first holding unit relative to the central axis. Both holding units are designed to axially secure a treatment tool held in the hollow shaft and to transmit a torque to the treatment tool. Both holding units have at least one shaped element each and a bore penetrating the outer wall of the hollow shaft. The shaped element can be held in such a way that it projects through the bore into the interior of the hollow shaft. A locking sleeve is operatively connected to the shaped elements and can move relative to the hollow shaft. The locking sleeve surrounds the hollow shaft and an operating element operatively connected to the locking sleeve for the movement or sliding of the locking sleeve.

Chucking device for a medical or dental handpiece

Medical handpieces for dispensing filling material are disclosed. Some handpieces comprise a connection device for a filling material container, a vibration unit for the generation and transmission of vibrations to the filling material and a conveying device for conveying filling material from the container. The vibration unit comprises a vibration exciter and a sonotrode, wherein the sonotrode and the connection device are movable relatively to each other for conveying filling material from the filling material container. In addition handpieces are described for dispensing filling material, the vibration unit of which is operable in an automated operating mode for pulsed power output on the filling material.

Medical handpiece for dispensing filling material

Embodiments of a medical hand-grip element for injection of a substance from an ampoule, comprise a drive device for driving the ampoule and the injection needle, a delivery device for delivering the medicinal substance out of the ampoule and a coupling device for rotationally fixed coupling of the ampoule with the injection needle and for preventing a relative movement between the ampoule and the injection needle is disclosed. Embodiments of injection systems, injection units, injection needles and handling methods for them are also disclosed in which the risk of injury and contamination for the user is reduced by providing approaches for covering the ends of the cannulas of the injection needles during a number of handling steps.

Devices and methods for injection of media into human and animal tissue

There is disclosed a medical or dental hand-piece element comprising a coupling mechanism for a detachable connection of the hand-piece element to a drive unit, a tool receptacle that is or can be connected to the hand-piece element, and a drive element for transmitting a driving movement from the drive unit to the tool receptacle so that the tool receptacle can be set into a working movement, wherein the drive element comprises at least one rotatable shaft, and a generator for converting mechanical energy into electric energy, wherein the generator can be driven by the at least one rotatable shaft of the drive element.

Medical or dental hand-piece element

A dental handgrip for delivering filling compound into a tooth cavity is described, the handgrip being provided with a connection device to which a container for the filling compound can be connected. In some embodiments, the handgrip includes a light emission device via which radiation having a wavelength and radiant power for hardening of filling material can be provided. The dental handgrip can include a safety device to prevent a premature or inadvertent light emission onto the filling compound. In some embodiments, the handgrip includes a fluid-operated feeding device for feeding the filling compound from the filling compound container. A vibration generator operable to cause vibrations in the filling compound and to assist in feeding of the compound can also be provided.

Dental handgrip

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Salzburg, Austria

Hannes Wagner