Carl Zeiss Meditec Ag

Carl Zeiss Jena Gmbh

Dirk Preuss

Steffen Dubnack

Mark Bischoff

Gregor Stobrawa

Elke Ebert

Dietmar Steinmetz

Dirk Muehlhoff

Uwe Wolf

Karsten Festag

Dirk Mühlhoff

Beate Böhme

Michael Stefan Rill

Diego Zimare

Tobias Damm

Thomas Wollweber

Andreas Wirth

Jenny Duenger

Christian Pössel

A lens element and a one-piece contact apparatus having a lens element and a holding device for fixing a patient's eye to a laser applicator of an ophthalmological laser therapy system and a corresponding production method. The production method is conceptually simple and user-friendly and allows a high degree of automation while at the same time meeting the high requirements for mechanical and optical precision of the lens element. The lens element has an optically effective zone and a joining zone. The joining zone also has a functional zone for joining the lens element to a holding device which is arranged continuously circumferentially or interrupted circumferentially at the outer edge of the lens element. The contact apparatus includes a lens element and a holding device, which are permanently connected to one another, wherein the lens element and the holding device are not connected to one another by adhesive-bonding.

Lens element and contact apparatus for an ophthalmological laser therapy system

The invention relates to a contact glass for ophthalmic surgery. Said glass comprises a lens body that is held in a frame and a front lens surface that is designed to be placed against the eye. According to the invention, the front lens surface is concave and follows a surface curvature (K) and an annular gap is formed at the edge of the front lens surface between the lens body and the frame, said gap being used to apply a negative pressure in order to fix the contact glass to the eye. The frame is designed to follow the contour of an imaginary continuation of the surface curvature (K), or at least does not project beyond the latter.

Contact glass for ophthalmic surgery

A contact glass for ophthalmic surgery, including a concave anterior lens surface for placement on the eye and a suction channel annularly surrounding the periphery of the anterior lens surface. The suction channel allows the contact glass to be fixed to the eye by means of a vacuum, it is envisaged that the suction channel comprise a multiplicity of suction orifices, which are annularly arranged with respect to the anterior lens surface and through which the vacuum acts on the eye.

Contact glass for ophthalmologic surgery

An endoprobe for ophthalmic microsurgery for intraocular treatment of the eye and that affords a surgeon good visibility regardless of the distance from the treatment site in the eye. The endoprobe includes a stainless steel cannula enclosing one or more optical fibers and a laser fiber. A distal end of the optical fibers can be closed by a transparent lens-shaped structure such that an illuminating light transmitted through the optical fibers is radiated and transmitted laser light can exit from the laser fiber, or such that the laser fiber is embedded in a transparent shaped element. The laser fiber may have a covering for transporting light. The laser light may be injected directly into the laser fiber and the illuminating light is injected via at least one optical element into the covering of the laser fiber or into the transparent shaped element.

Endprobe for intraocular treatment of the eye

In order to develop an electric probe for microsurgery, which is provided in particular in ophthalmology for intraocular treatments of the eye, in such a way that the probe is constructed in a simple manner, can be produced inexpensively, is easy and safe to handle, and at the same time can be used for multiple functions as an illuminated intraocular probe, it is suggested that the electric probe comprises an outer electrode, an inner electrode and a light guide. The inner electrode has a contoured electrode end face and projects out over a front end of the light guide or is embedded in the light guide so as to terminate with it. When the electrodes and light guide are constructed cylindrically, the hollow space remaining between the electrodes and the light guide is provided as a suction channel for sucking out tissue particles, and in various embodiment forms, including an embodiment as an illuminating endoprobe, the electric probe is connected to an operating and controlling device by which pre.-defined, changeable parameter sets which are adapted depending on the probe characteristics can be adjusted and retrieved.

Electrical probe for microsurgery

An arrangement is disclosed for holding optical components, particularly light guides, and is characterized in that the parts of the holder contacting the optical component are made of a material with an index of refraction associated with the index of refraction of the material of optical component.

Device for holding optical components

An electrical probe which can be used in electrosurgery as well as for measurements is disclosed. The probe comprises an inner electrode and an outer electrode which are constructed coaxially. The isolator located between the electrodes is constructed as a light guide and can accordingly be utilized for illumination or irradiation by means of a laser.

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Jena, Germany

Dirk Preuss