Literatura científica selecionada sobre o tema "Chirurgie – Appareils et matériel – Innovation"
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Teses / dissertações sobre o assunto "Chirurgie – Appareils et matériel – Innovation"
Pioche, Mathieu. "Optimisation de la technique de dissection sous muqueuse à l’aide d’un bistouri à jet d’eau haute-pression pulsée pour le traitement endoscopique des tumeurs superficielles du tube digestif". Electronic Thesis or Diss., Lyon 1, 2015. http://n2t.net/ark:/47881/m6cr5rtg.
Texto completo da fonteFirst of all, we worked on the training for unexperienced operators by developing a bovine colon model more adapted to the European situation where colo-rectal lesions are the most common. This model of rectum from bovine, easy to find and to prepare allows training in conditions most close to the human colonic wall than those offered by the pig stomach. Furthermore, such models allows to teach the initial skills but avoiding the risk of adverse events for the first procedures in humans. A future work evaluating the benefits of a learning support by a dedicated interactive software on this model with 37 french and Japanese students is now being analyzed and will be reported soon. Then we thought about the strategy of the procedure in order to make it more simple using the tunnel technique to perform ESD for the esophageal lesions. This strategy helps to maintain traction on the edges and offers a sort of triangulation physically expanding the working space. This strategy has become a standard for esophageal resections in many teams and we still work to improve its efficacy. Finally, we worked jointly with Nestis® Company to develop a tool to optimize the submucosal dissection procedure by combining the benefits of the catheters bi function (injecting and cutting with the same tool), but adding high pulsed pressure and capability to inject viscous macromolecular solutions. The Nestis® system allows for the first time this association and demonstrated his interest in terms of security and performance compared with the conventional method using the needle and a conventional electrocautery device. With this bi function tool, it is not necessary to change instrument frequently since all stages of the procedure are now done with a single device. Other projects are already included with this material to explore its benefits and its safety in human colonic dissection that is deemed as the most difficult due to the thinner wall. Finally, this material offers the possibility to inject pressurized active drugs which could be used in the future to prevent the occurrence of esophageal strictures or to direct healing. We also worked with the hospital Edouard Herriot pharmacy to stabilize the solution glycerol mix to allow its use in daily practice in our unit
Taillandier, Gérard. "Contribution à la réalisation d'une sonde parodontale électro-mécanique reliée à un traitement informatisé des données". Toulouse 3, 1991. http://www.theses.fr/1991TOU30276.
Texto completo da fonteRasoulifar, Rahi. "Processus de conception centé utilisateur à base de scenario : application à la conception d'instruments chirurgicaux innovants en chirurgie mini-invasive". Grenoble 1, 2009. http://www.theses.fr/2009GRE10319.
Texto completo da fonteThis PhD research is a contribution to the design process of innovative surgical instruments, particularly for minimally invasive surgery (MIS) for which the collaboration of surgeons and engineers is inevitable. Reviewing the literature shows that there is a gap between what surgeons need and what the engineers design. An approach to fill this gap is to build a design process which enables surgeons and engineers to work together, or in other words, enables the designer to integrate the surgeon in the design process. Taking the action research as the research method, this thesis went through the action of a 2-year design project of an MIS instrument, Protige, and observed and captured the experiment. The analyses of the corpus of observation showed new aspects of design process: the coevolution of product and usage during the process, and the role of the expert user in the design progression. These results led to propose new descriptions of design process, such as emulation step and expert- UCD, and provided bases for proposing a descriptive design process model for innovative surgical instruments. The validity of the proposed model was examined by applying to another MIS instrument design, and an informatic structure was proposed as a support for the process model
Paille, Joffrey. "La localisation spatiale d'outils chirurgicaux par systèmes électromagnétiques alternatifs : applications et domaines de validité des modélisations numériques". Université Joseph Fourier (Grenoble), 2004. http://www.theses.fr/2004GRE19002.
Texto completo da fonteMagnetic tracking devices are the only systems that allow tracking movement of surgical tools inside the human body. Nevertheless, when used in a typical working environnement, these systems are usually disturbed by electromagnetic fields induced in nearby metals. The presence of metallic objects within the working field results in measurement errors which can be important, several millimeters for the most significant. Three-dimensional finite element modelling is presented, which is performed with FluxExpert software. This model is used to study the effect of the two metal-related phenomena that impinge on the performance of electromagnetic based trackers : eddy currents and ferromagnetism. Two numerical techniques have been developed. An experimental investigation was undertaken to validate the aumerical results. Validity domains of the numerical modellings have also been determined
Maillet, Pierre. "Développement d'un robot pour la chirurgie orthopédique et d'une méthodologie pour sa mise en oeuvre". Montpellier 2, 2006. http://www.theses.fr/2006MON20129.
Texto completo da fonteSeveral surgical procedures in orthopaedics, neurosurgery, maxillofacial or ENT need to mill, drill or cut bones accurately. In conventional surgery, motorized tools are positioned and held by the surgeon to realize these tasks. But bone cavity accuracy and surface roughness depend on the surgeon dexterity. In this thesis, we present a robot that has been developed for orthopaedic surgery as well as a registration method to position it with respect to the patient while satisfying constraints such as accessibility. In the two first section of the dissertation, the surgical constraint are presented and a state of art on current devices developed to assist ther surgeon's gesture is done. The third section details the BRIGIT device (Bone Resection Instrument Guidance by Intelligent tool) including its software and hardware architectures. A dedicated procedure for total knee replacement is also described. The last section presents the registration problem: two methods are proposed, one deriving a single robot solution, the second deriving a set of solutions that allows to position the robot in a more flexible manner
Krupa, Alexandre. "Commande par vision d'un robot de chirurgie laparoscopique". Vandoeuvre-les-Nancy, INPL, 2003. http://docnum.univ-lorraine.fr/public/INPL_T_2003_KRUPA_A.pdf.
Texto completo da fonteThis work presents a robotic vision system that automatically retrieves and positions surgical instruments during robotized laparoscopie surgical operations. The instrument is mounted on the end-effector of a surgical robot which is controlled by visual servoing. The goal of the automated task is to safely bring the instrument at a desired 3-D location from an unknown or hidden position. Light Emitting Diodes are attached on the tip of the instrument and a specifie instrument-bolder fitted with optical fibers is used to project laser dots on the surface of the organs. These optical markers are detected in the endoscopie image and allow to localize the instrument with respect to the scene. The instrument is recovered and centered in the image plane by means of a visual servoing algorithm using feature errors in the image. With this system, the surgeon can specify a desired relative position between the instrument and the pointed organ
Sincan, Premcoumar. "De l'antisepsie à l'asepsie en chirurgie". Lyon 1, 1997. http://www.theses.fr/1997LYO1M128.
Texto completo da fonteBogalhas, Frédéric. "Développement d'une sonde positon per-opératoire pour la localisation et l'excision des tumeurs cérébrales". Paris 11, 2009. http://www.theses.fr/2009PA112326.
Texto completo da fonteNowadays, the precision of the surgical removal remains one of the major steps of the management of patients suffering from brain cancers, such as gliomas, and conditions, more than for all other cancers, the survival outcome and the quality of life of operated patients. The stake is to perform the excision as complete as possible to prevent recurrences while preserving normal tissue bordering the tumour. This thesis presents the development, the characterisation and the pre-clinical evaluation of a radioisotopic probe intended to guide the surgeon in the simultaneous detection and removal of brain tumour lesion labelled with positrons emitting radiotracers. The probe consists of an exchangeable detection head built around clear and scintillating plastic fibres, an optic fibre bundle and a transportable photodetection and an acquisition module including a multi-channel photomultiplier and an electronic read-out chip. An optimised prototype of the probe with regards to performances (detection efficiency and spatial resolution) and ergonomics was realised. Its evaluation using a brain phantom demonstrates the ability of the probe to detect, with a precision averaging the millimetre, small residual lesions (20mg) labelled with currently available fluorinated radiotracers. Moreover, the pre-clinical evaluation performed on a primate model proves that the simultaneous precise in vivo detection and removal of radiolabelled tissues was feasible being guided only by the imaging abilities of the probe coupled to an ultrasonic surgical aspirator
Beigt, Noëlle. "Évaluation du risque de perforation du gant chirurgical au cours de l'acte opératoire". Bordeaux 2, 1989. http://www.theses.fr/1989BOR25001.
Texto completo da fonteGiraud, Jean Yves. "Etude et mise en oeuvre d'un ostéotome assisté par ultrasons". Toulouse 3, 1991. http://www.theses.fr/1991TOU30264.
Texto completo da fonteLivros sobre o assunto "Chirurgie – Appareils et matériel – Innovation"
Biomaterials. 2a ed. Harrow: Alpha Science International, 2005.
Encontre o texto completo da fonteTelevisionaries: Inside the chaos and innovation of the digital revolution. Del Mar, California?]: MediaTech Publishing, 2015.
Encontre o texto completo da fonteBhat, Sujata V. Biomaterials. Boston: Kluwer Academic Publishers, 2002.
Encontre o texto completo da fonteBhat, Sujata V. Biomaterials. New Delhi: Narosa, 2002.
Encontre o texto completo da fonteBiomaterials. Boston: Kluwer Academic Publishers, 2002.
Encontre o texto completo da fonteTrajtenberg, Manuel. Economic analysis of product innovation: The case of CT scanners. Cambridge, Mass: Harvard University Press, 1990.
Encontre o texto completo da fonteYoseph, Bar-Cohen, ed. Electroactive polymer (EAP) actuators as artificial muscles: Reality, potential, and challenges. 2a ed. Bellingham, Wash: SPIE Press, 2004.
Encontre o texto completo da fontePhillips. Surgical Instrumentation Workbook (Phillips, Surgical Instrumentation). Delmar Thomson Learning, 2009.
Encontre o texto completo da fonteFundamental Skills for Surgery. McGraw-Hill Medical Publishing Division, 2008.
Encontre o texto completo da fonte(Editor), Mark J. Jackson, e Waqar Ahmed (Editor), eds. Surface Engineered Surgical Tools and Medical Devices. Springer, 2007.
Encontre o texto completo da fonte