Heraeus Med Gmbh

Heraeus Holding Gmbh

Uwe Gampe

Rudolf Marka

Stefan Greif

Jorg Eduard Hartge

Stefan Maier

Ulrich Kolloch

J&ouml;rg Eduard Hartge

Matthias Helten

Achilleas Leontidis

Jörg Eduard Hartge

Soren Wasow

Stefan Weigand

Joachim Keitel

Klaus Buss

Berthold Gerhart

For the video recording of a field illuminated by a lamp, especially a surgical lamp, where at least one light beam for illuminating the field emerges from a light exit area of a lamp housing in the direction of a predetermined housing axis, the optical axis of a video camera mounted with freedom to swivel a certain distance away from the exit point of the light beam is shifted automatically by a positioning element until the axis at least approximately intersects the light beam in the area of the illuminated field. The positioning element is driven by signals from a control unit. The video camera is preferably shifted in a stepwise manner. The distance to the illuminated field is determined by the fine focusing of the camera by the autofocus function, and then signals are transmitted from the control unit to the positioning element of the camera to compensate for the parallax between the optical axis of the camera and the light beam or beams emerging from the lamp.

Process and device for the video recording of an illuminated field

A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs, a first bulb of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb the positions of the sockets of both bulbs are changed by an electromagnetically operated turning service such that the second bulb can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb has been withdrawn from the centered position. The first bulb is configured as a double-end gas discharge bulb with terminal contacts situated axially opposite one another, which is held and contacted together with the second bulb in the form of an incandescent bulb which, together with the second socket disposed at a distance, is configured as part of the turning system rotatable about an axis for holding and contacting the other end of the gas discharge bulb. In the event of failure of the first bulb the desired change in the positions of the bulbs is brought about by a releasing action and with the aid of a biased torsion spring.

Luminaire body for a medical light, and the use thereof

An operating-room lighting device with an inner lighting unit that includes at least one discharge lamp and an inner reflector in a housing. The lighting unit is at least partially enclosed by an outer annular housing with an annularly or polygonally designed reflector for convergent deviation of light emitted by the lighting unit into an illumination field. The outer reflector includes, on its side facing the inner lighting unit, a closed transparent surface whose back adjoins a reflective layer. The reflective layer is applied to the back of the transparent surface. The inner lighting unit and the outer reflector are held together by a connecting member, which is articulated to a curved intermediate piece for attachment to a stationary support. It is therefore possible to provide an operating-room lighting device having a high illumination intensity, which supplies the illumination field, on the one hand, with light from a large diameter and, on the other hand, from a small diameter, so as to offer both good lighting of narrow wounds and good illumination behind possible obstacles. The lighting unit is furthermore compactly designed and suitable for laminar flow in order to avoid contamination in the environment of the operation-room field.

Operating-room lighting device with a lighting unit comprising a discharge lamp

A ceiling-supported suspension mechanism for a piece of equipment, in particular for operating lights, has a pivot arm, as extension, which is arranged on the rotary bearing of a ceiling mount such that it can be rotated about a vertical axis. The pivot arm has two sub-arms which are connected to one another by an intermediate articulation which can be rotated about a vertical axis. The two sub-arms of the pivot arm are arranged at the same height such that they can be pivoted in a horizontal plane. The intermediate articulation can be pivoted merely in a limited angle range of up to 110&deg;, as a result of internal stops. The sub-arm which is remote from the rotary articulation is provided, at its outer end, with an articulation which can likewise be rotated about a vertical axis and on which there is fastened a carrying arm for the suspension mechanism. It is possible for the carrying arm to be pivoted through 360&deg;.

Ceiling-supported suspension means

A reflector for a medical luminaire, for use with an incandescent bulb or a discharge bulb, which includes a reflector blank having a reflecting surface, the reflecting surface being provided with a plurality of trapezoidal facets tapering toward the point of intersection with the axis of rotation, the facets being arrayed on at least 8 circular rings around an axis of rotation of the reflector and at least 50 facets being provided in each circular ring.

Reflector for a radiating luminous source and use of the same

Operating room light with rotary joint for attachment of a swivel arm

A medical lamp having a reflector in the shape of an ellipsoid of rotation containing on its interior side a plurality of facets which provide for a largely shadow-free illumination of the area to be lit. An opening is provided in the reflector, which is surrounded by a ring flange. A lamp having a spiral-wound filament therein is inserted into the ring flange so that its bulb is oriented towards the surface of the reflector where the light exits, whereby the spiral-wound filament in the bulb is positioned along the reflector axis. The bulb has a base with a cylindrical portion which is adjacent to a plate flange. The cylindrical portion of the base is encircled by the ring flange of the reflector opening in such a manner that the bulb is secured against shifting in the radial direction of the reflector axis. A clip attached to opposite ends of the reflector contacts the plate flange located at the rear end of the lamp in a locking manner to secure the base to the outer edge of the ring flange and, as a result, the lamp is set in its correct spiral-wound filament position. A major advantage of the present invention is its simple construction and the speed with which the lamp can be changed.

Medical lamp with multi-component projector unit

A lamp housing for a surgical lamp having a light exit opening at one end thereof, an access opening disposed on a side opposite from the light exit opening and a cover member for closing the access opening. The cover member is attached to a pivotable spring member located in the interior of the housing. The cover member is held in the access opening through spring action by a flange-type circumferential flange on the inside of an edge surrounding the access opening. The spring member is a leaf spring connected to the cover member and is pivotably hinged to the interior of the lamp housing. By applying external pressure to the cover member, the cover member is inserted into the housing and shifted along the interior of the lamp housing by a swivel motion to the extent that access, for example, for changing the bulb, without difficulty.

Lamp housing for surgical lamp

A rotation joint has two joint elements arranged for rotation with respect to each other about an axle, a cam ring arranged coaxial to the axle in a housing and having a curved track with a spatial curvature, a spring guide element arranged on the axle with springs disposed coaxial to the axle around the spring guide element, and bolts mounted radial to the axle and having bearings whose outer circumference lies in force-transmitting relation on the curved track. In order to make a rotation joint with weight compensation which guarantees sure functioning, and at the same time can be produced economically by a simple construction and a compact structure, the housing is essentially formed by the two joint elements. The spring guide element is rigidly connected with a first joint element, and the cam ring is arranged on the spring guide element and capable of axial motion, but the second joint element is locked against a movement in the direction of the axle, and the bolts are fixed in the second joint element.

Growing community of inventors

Floersheim, Germany

Uwe Gampe