Torsti
Ilari Torsti, Turku FI
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20100203573 | AUTOMATED INSTRUMENTATION AND METHOD FOR MEASUREMENTS OF SAMPLES - One object of the invention is to provide instrumentation and a method for efficient and reliable assaying and measuring samples. The teachings include an automated self-contained instrument for assaying and measuring samples, wherein the samples are located on wells of sample plates, and the instrument comprises a plurality of units for processing or storing sample plates. The instrument according to the teaching may comprise at least one dispensing unit for dispensing reagents or other assay components to the sample wells, at least two units for simultaneously processing or storing a plurality of sample plates, at least one unit for removing substance from the sample wells, and one or several measurement units, the measurement unit(s) providing a capability for the instrument to optically measure samples in at least two measurement modes. Further, the instrument comprises a manipulator having a capability to move the sample plates in three orthogonal directions or combinations thereof and to rotate the sample plates in relation to a vertical axis for transferring the sample plates to the units. | 08-12-2010 |
20130327195 | METHOD AND DEVICE FOR CUTTING OFF ONE OR MORE SAMPLE REGIONS FROM A SAMPLE CARRIER - A device for cutting off one or more sample regions from a sample carrier that contains impregnated sample material, e.g. blood, is described. The device includes: a cutting unit ( | 12-12-2013 |
Tuomas Torsti, Espoo FI
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20110293071 | METHOD FOR CALCULATING HEAD SCATTER PHASE SPACE FOR RADIATION TREATMENT USING A MULTI-LEAF COLLIMATOR WITH DYNAMIC JAWS - A method is proposed for accurate and efficient modeling of head scatter phase space for treatments with dynamic jaws. Specifically, the method enables the efficient calculation of the head scatter phase space in case of a dynamic treatment where jaws and MLC leaves move during the delivery. In one embodiment, the invention can be used to calculate the head scatter contribution during final dose calculation of dynamic treatments. This novel method also enables an accurate calculation of the head scatter contribution from optimal fluence and from jaw positions without having to calculate the leaf sequence. In this embodiment, the invention can be used in optimization of large field IMRT treatments. | 12-01-2011 |
Tuomas Erik Torsti, Espoo FI
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20100046713 | LEAF SEQUENCING ALGORITHM FOR MOVING TARGETS - A method of providing intensity modulated radiation therapy to a moving target is disclosed. The target moves periodically along a trajectory that is projected onto a multi-leaf collimator (MLC) plane. The MLC plane is divided into thin slices parallel to the movement of the target. The present invention optimizes the leaf sequence such that, within each slice, if a point receives radiation, all other points in that slice that receive the same amount or more fluence are also receiving radiation at the same time. | 02-25-2010 |
20110200170 | Method and System for Treating Moving Target - A method and system for providing intensity modulated radiation therapy to a moving target is disclosed. According to a preferred embodiment of the invention, a treatment plan for providing radiotherapy using a multi-leaf collimator (“MLC”) comprises a plurality of sub-plans, each of which is optimized for a different phase of target movement. Movements of the treatment target are tracked in real time, and the choice of which sub-plan to implement is made in real time based on the tracked position of the target. Each of the sub-plans is preferably formulated to minimize interplay effects between target movements and MLC leaf movements, consistent with other planning goals. In addition, the sub-plans preferably include a predicted region corresponding to the next anticipated position of the target, in order to facilitate the transition to the next position. | 08-18-2011 |
20130216026 | METHOD AND SYSTEM FOR TREATING MOVING TARGET - A method and system for providing intensity modulated radiation therapy to a moving target is disclosed. According to a preferred embodiment of the invention, a treatment plan for providing radiotherapy using a multi-leaf collimator (“MLC”) comprises a plurality of sub-plans, each of which is optimized for a different phase of target movement. Movements of the treatment target are tracked in real time, and the choice of which sub-plan to implement is made in real time based on the tracked position of the target. Each of the sub-plans is preferably formulated to minimize interplay effects between target movements and MLC leaf movements, consistent with other planning goals. In addition, the sub-plans preferably include a predicted region corresponding to the next anticipated position of the target, in order to facilitate the transition to the next position. | 08-22-2013 |