[Marcel Seeber, Andreas Karguth, Christian Trommer] DE Jena DE The invention describes a retaining and positioning device of a surgical instrument and/or of an endoscope for minimally invasive surgery, more particularly for use within a surgical robot system, including a first axis of rotation, around which a retaining element can be rotated. The first axis of rotation always intersects with a longitudinal axis of at least one surgical instrument and/or of an endoscope in a pivotal point by means of a thrust drive being attached to the retaining element, to which thrust drive an instrument drive unit can be rotatably arranged around the pivotal point. The instrument drive unit has a telescopic arrangement via which the surgical instrument can be moved in a translational manner along the longitudinal axis thereof by means of a guide arrangement in the body in such a manner that the longitudinal axis of the surgical instrument is variably adjustable relative to the telescopic arrangement.

[LEHMANN, Walter, KAYSER, Thomas, TROMMER, Martin, NASAROW, Christian] Quarzstrasse 8 63450 Hanau;Poelitzstrasse 22 04155 Leipzig;Hinrichsenstrasse 21 04105 Leipzig;Carl-Maria-von-Weber-Strasse 21 06749 Bitterfeld-Wolfen;Paul-Michael-Strasse 12-14 04179 Leipzig In a known method for producing quartz glass granules by sintering a bed of pourable SiO2 granulated material made of porous granulated material particles, the bed is heated and vitrified, forming quartz glass particles. In order to make it possible, proceeding from porous SiO2 granulated material, to continuously and cost-effectively produce transparent synthetic quartz glass granules having a low hydroxyl group content, according to the invention the vitrification of the porous granulated material particles is carried out in a vacuum or in a helium-containing atmosphere using at least one laser beam, in that the granulated material bed is produced on a carrier and is continuously moved by means of or on said carrier relative to the laser beam during vitrification, wherein the granulated material particles have a mean grain size of between 200 and 1000 μm and the laser beam is directed with glancing incidence at the granulated material bed.

[KARGUTH ANDREAS, TROMMER CHRISTIAN, GUDE GERALF, ZIEGENSPECK NILS, SCHRUMPF THOMAS] DE

[ZIEGENSPECK NILS, TROMMER CHRISTIAN, GUDE GERALF, SCHRUMPF THOMAS, KARGUTH ANDREAS] DE The invention relates to an operating device (42) for a robot-assisted surgery system (10) comprising a manually actuatable operating element (124) as well as an interface (100) for attaching the operating device (42) to a holding unit (50). When attached to the holding unit (50), the operating element (124) is rotatable relative to the interface (100) about three axes of rotation (106, 114, 126) running orthogonally to each other, these three axes of rotation (106, 114, 126) intersecting in a common point of intersection (150).

[Andreas KARGUTH, Christian TROMMER, Marcel SEEBER] DE Jena DE A device for robot-assisted surgery, comprising at least one non-sterile manipulator arm (12) having a coupling unit (100) with drive elements. The device further has an instrument unit (300) which comprises a surgical instrument (500) and a sterile sterile unit (400) for coupling the surgical instrument (500) to the drive elements of the coupling unit (100). The coupling unit (100) comprises a translatory drive element (110, 112) for generating a translatory drive movement and a rotatory drive element (114, 116) for generating a rotatory drive movement. The sterile unit (400) has a translationally driven element (408, 410) couplable to the translatory drive element (110, 112) and a rotationally driven element (412, 414) couplable to the rotatory drive element (114, 116). The device has a sterile lock (200) which is capable of being coupled to the coupling unit (100) and to the sterile unit (400).

[OTTER, Matthias, LEHMANN, Walter, HÜNERMANN,Michael, NIELSEN, Nils Christian, TROMMER, Martin] Quarzstasse 8, 63450 Hanau, DE

[Marcel Seeber, Andreas Karguth, Christian Trommer] DE Jena DE The invention describes a mounting and positioning device of a surgical instrument and/or an endoscope for minimally-invasive surgery, in particular for use within a surgical robot system, comprising a first axis of rotation (3), around which a support element (4) is rotatably arranged, wherein the first axis of rotation (3) intersects with the longitudinal axis (11) of at least one surgical instrument (9; 17A, 17b) and/or an endoscope (9; 17A, 17b) in a pivot point (13), as the result of a deviation drive (5) being fixed on the support element (4), said deviation drive arranging an instrument drive unit (15) in rotatable fashion around a pivot point (13), and wherein a telescopic device (8) is provided at an instrument drive unit (15), which allows for the translatory movement of the surgical instrument (9; 17A, 17b) and/or the endoscope (9; 17A, 17B) into the body, along its longitudinal axis (11) using a guide device (10, 10s) in such fashion that the longitudinal axis (11) of the surgical instrument (9; 17A, 17b) and/or the endoscope (9; 17A, 17b) is variably adjustable in relation to the telescopic device (8).

[ANDREAS KARGUTH, CHRISTIAN TROMMER, GERALF GUDE, NILS ZIEGENSPECK, THOMAS SCHRUMPF] DE

[SEEBER MARCEL, KARGUTH ANDREAS, TROMMER CHRISTIAN] DE

[Ziegenspeck, Nils, Trommer, Christian, Gude, Geralf, Schrumpf, Thomas, Karguth, Andreas] Ernst-Ruska-Ring 23, 07745 Jena, DE