Micro Mega, S.a.

Micro Mega International Manufactures

Neolix

Micro-mega

Micro Mega International Manufactures (societe Anonyme)

Neolix Sas

Jacques Pernot

Hubert Euvrard

Jean-Marie Badoz

Jean-Marie Vulcain

Jean-Paul Jacoulet

Bernard Lacour

Emilien Paul

Pierre Colon

Jean-Claude Boinot

Jean Claude Boinot

Christelle Zazzi

A piece of mechanized surgical equipment is provided, which includes an instrument holder having an element for receiving and retaining a surgical instrument for mechanized use. Also provided is a surgical instrument for mechanized use and configured to be mounted on the instrument holder. The element for receiving and retaining is mobile between an unlocking position, in which the element enables insertion of the instrument into the instrument holder or withdrawal thereof, and a locking position, in which the element prevents the withdrawal of the instrument from the instrument holder. Furthermore, the equipment includes a case in which an active blade of the instrument can be removably housed, the case having an engaging element for engaging with the receiving and retaining element so as to cause the element to move from the unlocking position to the locking position, or vice versa.

Mechanized surgical equipment comprising an instrument and an instrument holder, corresponding packaging and instrument holder

The invention relates to an endodontic instrument used for working on a canal in a tooth, having a base from which an active portion for working on the canal extends longitudinally, characterized in that said active portion has at least one slot extending longitudinally and forming a passage for fluid.

Endodontic instrument, the active portion of which has a slot forming a passage for a fluid

A dental handpiece () includes mechanical components, in particular, a tool-holder assembly for the attachment and for the rotational driving of a dental instrument about a drive axis () and an assembly for the transmission of such movement. The mechanical components are mounted in the interior of a body () having a head () and a handle (). The mechanical components of the handle and the head of the handpiece are electrically connected by an elastic and electrically conducting connecting device.

Dental handpiece with a unitary body and an electrically conductive and elastic connection element

A head assembly for attaching to a dental instrument has a body, a rotary shaft with a pinion thereon, at least one retractable catch latching lever and a retractable catch. The rotary shaft has a central bore suitable for receiving a shank of the dental instrument therein. The latching lever has a peg engageable with an annular latching groove of the shank of the dental instrument. The catch has a positioning plane coinciding with the drive flat of the instrument. The body has a circular opening closed off by a push button cooperative with the rotary shaft so as to release the shank of the dental instrument.

Removably fixing a dental instrument with a retractable catch relative to a drive shaft axis

A driven appliance, such as a contra-angle handpiece for surgical instruments, in particular for dental surgery, includes a handle, a neck and a head for receiving an instrument. The handle and the neck of the contra-angle handpiece each receive a drive shaft, respectively, an input shaft and an output shaft, which are linked to each other by a gear train. The input shaft and the output shaft are slidingly mounted in their respective bodies, which forms a sheath for the two shafts. The shafts are maintained and supported on stops arranged on the corresponding sheathes through a single elastic element which is housed in the bend linking the handle to the neck.

Contra-angle handpiece for rotary surgical instruments, in particular in dental surgery

A support for a dentistry handpiece or contra-angle is connected to a dental unit, such as a motor, including apparatus for the supply of water and air for spraying the working point of the supported handpiece of contra-angle and, if desired, apparatus for supplying electric current to bulbs situated in the head of the handpiece or contra-angle for lighting in the working point and/or fibre optics. The rear face of the support is provided with a projecting ring of insulating material and the motor includes an annular hollow form for receiving the ring when the support is mounted to the motor.

Device for connecting a dentistry handpiece or contra-angle on a support

The cutting shank of an instrument to be received in the head of a contra-angle of a dentistry handpiece is clamped in position with a pushed-button control device which is displacable counter to a tensioning spring. The control device generally takes the form of at least one reversal element for receiving pressures responsive to movements of the push-button and for converting such movements into a traction movement exerted by the reversal element on the pusher which is used to control the collet chuck which receives the shank of the instrument.

Push-button control device for a dental instrument

Atomizing process and device for dentistry handpieces or angle pieces, characterized in that it involves generating, in the region of the receptacle of the tool in the handpiece or angle piece, a suction effect putting the vicinity of the cutter receptacle under a slight vacuum under the effect of an air cone of which the apex is situated at the point where the tool is working, the other function of this air cone being to direct the cooling fluid by means of an effect of the COANDA type, thereby reducing the consequences of turbulences attributable to the rotation of the tool or instrument.

Device and process for dentistry hand or angle pieces

A transmission device for use in a dental handpiece has a modular unit comprising an input shaft coaxial to and driven by the motor shaft, and an oblique shaft extending obliquely with respect to the input shaft and also to the tool driving shaft. Each end of the oblique shaft carries a bevel pinion, one bevel pinion meshing with a bevel wheel fixed to the input shaft and the other bevel pinion meshes with another bevel wheel fixed to the tool driving shaft. The input and oblique shafts are mounted in suitable bores formed in a socket, the oblique bore remaining without the peripheral limits of the socket. The socket is adapted to be forcibly fitted into the handle of the handpiece.

Gear ratio step-down or step-up device for dental handpiece

System of coupling of the head of a drive unit to the body of a driven unit, characterized in that, the head bears a longitudinal key having two slopes inclined in relation to the axis of the head, and the body has a guiding or key-way groove for this key, this groove opening on an annular clearing in which a segment can be rotated against a spring and in which a pin is fastened radially, so that, while the key is engaged, this pin, by cooperation with the first of the slopes controls the rotation of the segment, then by cooperation with the second slope controls the blocking of the head in its driving position, and the segment can also be operated by hand so as to free the pin and allow the withdrawal of the head by drawing the key rearwardly.

System of coupling of the head of a counter-angle to the body of

A hand-held implement for removing dental scale provided with a rigid shaft to which is applied vibrations in a rotational or circumferential direction by a dynamically unbalanced air driven turbine. The rotor of the turbine is coupled to the shaft by a bearing and the shaft is restrained from rotating and restrained axially. Provision is made for supplying cooling water through the shaft to a dental scale removing tool mounted on a free end of the vibrated shaft.

Hand-held pneumatic implement for removing dental scale

This dental handpiece comprises means for controlling the delivery of compressed air and water to an outlet conduit leading to the head of the handpiece. The water and air supply conduits from the motor open each into a circular groove formed in the inner periphery of a socket easily fitted on the tool holder retaining end of the motor. Radial ports formed in the socket open on the one hand into the grooves, respectively, and on the other hand into an annular chamber formed between the socket and the handpiece body, the outlet conduit extending from this chamber. A rotary ring accessible from outside the handpiece body is provided with a pair of seals off-set axially and angularly to each other and so arranged that in two end positions of the ring one of the two supply conduits is closed while the other conduit is open, and that in an intermediate position both conduits are open.

Growing community of inventors

Vieilley, France

Jacques Pernot