1,721,384 research outputs found
STRUMENTO PER LA DEPOSIZIONE DI TESSUTO ADIPOSO NEL LIPOMODELLING
No full textLa presente invenzione si riferisce al settore della chirurgia plastica ricostruttiva,in particolare a uno strumento per la deposizione di tessuto adiposo nel cosiddetto lipomodelling (o fat grafting) (inteso come lipomodellazione con trapianto di tessuto adiposo), più in particolare a uno strumento che garantisce un controllo automatico nella deposizione del tessuto adiposo e assicura una corretta uniformità del trapianto
BIOLOGICAL TISSUE GROWTH THROUGH INDUCED TENSILE STRESS
No full textA tissue expansion device implanted in a non-activated state over a region of desired tissue growth. Once implanted and positioned the device is activated creating a supporting structure that creates a convex shaped dome over the underlying tissue. The convex shaped dome formed by the tissue expansion device places a tensile stress against the underlying tissue that promotes tissue growth. Alone or with the introduction of tissue enhancing agents and/or adipose tissue, new tissue within the convex shaped void grows until a balance is achieved eliminating the induced stress. Periodically the tissue expansion devices is again activated and enlarged creating an even larger void. Again, the newly enlarged void places additional tensile stress on the underlying tissue thus repeating the cycle of new tissue growth. Once the desired amount of tissue growth has been achieved the device is deactivated and removed
Breast reconstruction or augmentation using computer-modeled deposition of processed adipose tissue
No full textA tissue transfer method for reconstruction and augmentation of soft tissue. The method includes harvesting adipose tissue from a patient. The harvested tissue is processed via centrifugation to isolate a purified subset of the adipose tissue including separating and removing a substantial amount of triglycerides from the harvested adipose tissue. The centrifugation may be performed to cause separation of water from the purified adipose tissue and to cause separation of oil from mature adipocytes. Specifically, the spin rates may be selected to be high enough to cause lesions in the mature adipocytes that results in the release of the oil. The method continues with implanting the purified adipose tissue into the patient at a breast or other area identified for reconstruction or augmentation. The implanting is performed based on an injection pathway model that defines injection point locations and a number of injection pathway directions from each point
Real-time motion analysis for definition and control of patient position in radiotherapy
No full textReal-time tumour tracking in particle therapy: technological developments and future perspectives
No full textA key challenge in radiation oncology is accurate delivery of the prescribed dose to tumours that move because of respiration. Tumour tracking involves real-time target localisation and correction of radiation beam geometry to compensate for motion. Uncertainties in tumour localisation are important in particle therapy (proton therapy, carbon-ion therapy) because charged particle beams are highly sensitive to geometrical and associated density and radiological variations in path length, which will affect the treatment plan. Target localisation and motion compensation methods applied in x-ray photon radiotherapy require careful performance assessment for clinical applications in particle therapy. In this Review, we summarise the efforts required for an application of real-time tumour tracking in particle therapy, by comparing and assessing competing strategies for time-resolved target localisation and related clinical outcomes in x-ray radiation oncology
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