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Dive into the research topics where René Richter is active.

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Featured researches published by René Richter.


IEEE Transactions on Magnetics | 2012

Development of a Bendable Permanent-Magnet Tubular Linear Motor

Christian Urban; Richard Gunther; Thomas Nagel; René Richter; Robert Witt

This paper presents a new flexible linear actuator. It is a two-phase permanent-magnet tubular linear motor. An elastomer offers the desired actuator flexibility both between the coils of the stator and between the magnets in the mover. We determined the motor dimensions in a numerical parameter optimization and used various finite element models. The novel artificial muscle actuator is designed for tensile loads. It is electrically powered and obtains variable forces. Weights up to 750 g were lifted with a minimal bending radius of 200 mm. The outer diameter of the flexible linear direct drive measures about 30 mm.


Biomedizinische Technik | 2010

Minimally invasive rapid palatal expansion with an implant-supported hyrax screw / Minimalinvasive forcierte Gaumennahterweiterung mit einer implantatgetragenen Hyraxschraube

Winfried Harzer; Lars Reußer; Lars Hansen; René Richter; Thomas Nagel; Eve Tausche

Abstract Rapid palatal expansion is indicated in the orthopedic treatment of transverse maxillary deficiency for correction of severe crossbite. The fixation of the appliance at the tooth crowns leads to more tipping connected with resorptions at the buccal cortical bone, fenestrations and gingival retraction. The aim of the present study was focused on the improvement of bodily movement and optimization of the surgical osteotomy (Glassmans technique) in adult patients with application of the Dresden Distractor (DD). In 18 patients, the new method with a special mechanism of adaptation involving minimized surgical intervention and direct fixation of the hyrax screw by one implant and one bone screw was tested. The implants were loaded directly by activation of the hyrax screw two times per day. CT scans were taken before and 6 months after insertion of the DD. In the horizontal and vertical planes there was a V-shaped opening of the suture in anterior and cranial direction, corroborating previous studies. Dental arch also showed this V-shape, indicating tooth protection. DD is a suitable minimally invasive tooth-independent bone-borne expansion method, protecting teeth and causing skeletal as well as dental effect with tipping reduced by 10°. Zusammenfassung Die forcierte Gaumennahterweiterung ist zur kieferorthopädischen Behandlung extrem schmaler Oberkiefer und zur Behandlung des Kreuzbisses indiziert. Die Befestigung der Apparatur an den Zahnkronen führt aufgrund der starken Widerstände zu Zahnkippungen verbunden mit Knochenresorptionen und Gingivaretraktion. Ziel der Studie war die Verbesserung der körperlichen Bewegung der Kieferhälften und die Optimierung der chirurgischen Schwächung (Glassmann) bei Erwachsenen unter Einsatz des Dresden Distraktors (DD). Bei 18 Patienten wurde die neue minimalinvasive Methode, welche die direkte Fixierung der Dehnschraube am Kiefer mit Hilfe eines Implantates und einer Knochenschraube beinhaltet, eingesetzt. Die Schraube wurde unmittelbar nach Insertion des Implantates zweimal pro Tag aktiviert. CT-Aufnahmen wurden vor und sechs Monate nach Insertion der Apparatur angefertigt. In der Horizontal- und Vertikalebene erfolgte eine V-förmige Öffnung der Gaumennaht in anteriorer bzw. kranialer Richtung. Der Zahnbogen zeigte diese V-Form ebenfalls, jedoch ohne Zahnbelastung. DD erwies sich als alternative minimalinvasive, zahnunabhängige und knochengetragene Expansionsmethode, bei der die Kippung der Kieferhälften um 10° reduziert werden konnte.


Archive | 2010

Arrangement for determining a longitudinal position of a stopper

Christian Pommereau; Anke Liewald; Nils Basso; Thomas Nagel; René Richter; Robert Witt


Analyst | 2004

Elastomer-glass micropump employing active throttles

Ian Johnston; John Davis; René Richter; G. I. Herbert; M.C. Tracey


Archive | 2009

OPTICAL DETERMINATION OF THE POSITION OF THE STOPPER IN GLASS AMPOULES

René Richter


Archive | 2007

Micropump-operated drug dosing system

Nils Basso; Christian Pommereau; Alastair Clarke; René Richter


Archive | 2009

PERISTALTIC MICROPUMP WITH EXCHANGEABLE PUMP HEAD

Nils Basso; Christian Pommereau; Alastair Clarke; René Richter


Archive | 2010

Stopper for sealing a compartment of a medicament container

Christian Pommereau; Nils Basso; Anke Liewald; Thomas Nagel; René Richter; Robert Witt


Biomedizinische Technik | 2010

Minimally invasive rapid palatal expansion with an implant-supported hyrax screw.

Winfried Harzer; Reusser L; Lars Hansen; René Richter; Thomas Nagel; Eve Tausche


Archive | 2007

Peristaltic micropump having an exchangeable pump head

Nils Basso; Christian Pommereau; Alastair Clarke; René Richter

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Thomas Nagel

Dresden University of Technology

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Robert Witt

Dresden University of Technology

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Winfried Harzer

Dresden University of Technology

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Eve Tausche

Dresden University of Technology

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Jens Schirmer

Dresden University of Technology

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Lars Hansen

Dresden University of Technology

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Christian Urban

Dresden University of Technology

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Lars Dipl.-Ing. Reußler

Dresden University of Technology

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Richard Gunther

Dresden University of Technology

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G. I. Herbert

University of Hertfordshire

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