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AssigneeKretztechnik AG
InventorsJosef Steininger, Arthur Gritzky
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With a method for determination of the direction of introduction (4) and for controlling the introduction path of biopsy needles, probes and similar in organisms (2) by using an ultrasound imaging machine, a scanning unit (1) of the ultrasound is placed onto the introduction range of the organism (2) in order to display an image (3a) according to a sectional plane (3) in which or along which the directional axis (4) of the introduction path runs and the biopsy needle or similar is controlled during its actual introduction in the corresponding image display (3a, 6). For improvement of the accuracy of introduction and for an easier procedure a larger volume range (3) of the organism (2) is scanned by using a 3D-imaging and with a contingent interim storage of the derived signals by a volume storage the sectional plane (3a) to be displayed is selected according to predeterminable criteria from the volume (3), after which selection the intended introduction path (4) is virtually displayed in this image and an e.g. prismatic or cylindrical part of the total volume is selected especially within predeterminable limits (5) being parallel to the axis of the introduction path within that image (3a), the partial volume being displayed in a 3D-image (6), in which the biopsy needle or similar can be observed during its later actual introduction.
Method for determination of the direction of introduction (4) and tracing of the introduction path of biopsy needles, cannulas, probes and similar in organisms (2) by using an ultrasound imaging machine, whereby a scanning unit (1) of the ultrasound machine is set onto the intended introduction range of the organism (2) and an image of this range is generated by a sectional plane (3) within which respectively along which the direction axis (4) of the intended introduction path runs and the biopsy needle or similar during its real introduction is observed in an image display (3a, 6), thereby characterized that by using a 3D-scanhead (1) and an ultrasound machine suitable for 3D-imaging a larger volume range (3) of an organism (2) is scanned and with a possible interim storage of the derived signals by a volume storage the sectional plane (3a) to be displayed is selected from the volume (3) according to the predeterminable selection criteria, after which selection the introduction path (4) is virtually displayed and an e.g. prismatic or cylindrical part of the total volume to contain the introduction path is selected especially within predeterminable limits (5) parallel to the direction axis of the introduction path in the image (3a), which is displayed in a 3D-image (6) and in which the biopsy needle or similar can be observed during its later actual introduction.
Method for the determination of the direction of introduction (4) and tracing of the path of introduction of medical instruments such as biopsy needles, cannulas, probes and similar in organisms (2) by using an ultrasound imaging machine, whereby a scanning unit (1) of the ultrasound machine is placed on the skin area above the intended introduction range of the organism (2) and an image (3a) of this range is generated by a sectional plane (3), within which respectively along which the direction axis (4) of the introduction path to choose runs and the medical instrument during its real introduction is observed in the, respectively a displayed scan image (3a, 6), thereby characterized that an ultrasound machine being suitable for 3D-imaging, a 3D-ultrasound transducer (1) and a guiding device (9) coupled to the latter and determining the direction of introduction of the instrument are used;
Dependencies are inferred from the claim text.