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公开(公告)号：US11007014B2
公开(公告)日：2021-05-18
申请号：US16062636
申请日：2016-12-16
发明人： Robert Johannes Frederik Homan , Ronaldus Frederik Johannes Holthuizen , Michael Grass , Harold Agnes Wilhelmus Schmeitz , Bernardus Hendrikus Wilhelmus Hendriks , Thirukumaran Thangaraj Kanagasabapathi
摘要： The present invention relates to medical instrument tracking. In order to facilitate tracking a medical instrument, a system (100) is provided for tracking a medical instrument. The system comprises an instrument marker (14), a tracking arrangement (16), and a processing unit (18). The instrument marker is attached to the medical instrument on a marker position (20). The tracking system is configured to detect line segments (22) in the 5 field of interest and to detect the attached instrument marker. The processing unit is configured to identify a line segment (24) on which the attached instrument marker is detected as the medical instrument, and to determine an offset (26) between a position of a medical instrument tip (28) and the marker (14) by touching a reference marker (34) on the subject with the medical instrument (10).
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公开(公告)号：US11344218B2
公开(公告)日：2022-05-31
申请号：US15546310
申请日：2016-01-14
发明人： Julien Senegas , Daniel Wirtz , Sascha Krueger , Vincent Jeanne , Thirukumaran Thangaraj Kanagasabapathi , Joerg Sabczynski , Peter Forthmann
IPC分类号： A61B5/055 , A61B5/00 , A61B5/107 , A61B5/11 , G01R33/28 , G01R33/32 , G01R33/54 , G06T7/00 , A61B6/00 , A61B5/113
摘要： A contact-free method of determining biometric parameters and physiological parameters of a subject of interest (20) to be examined by a medical imaging modality (10), comprising steps of taking (72) a picture by a first digital camera (52) including a total view of an examination table (44); applying (74) a computer vision algorithm or an image processing algorithm to the picture for determining a biometric parameter of the subject of interest (20) in relation to the examination table (44); taking (78) at least one picture with a second digital camera (58), whose field of view (60) includes a region of the subject of interest (20) that is related to the at least one determined biometric parameter; using data indicative of the determined biometric parameter to identify (82) a subset of pixels of the at least one picture taken by the second digital camera (58) that define a region of interest (64) from which at least one physiological parameter of the subject of interest (20) is to be determined, taking (84) a plurality of pictures of the region of the subject of interest (20) with the second digital camera (58), and applying (86) a computer vision algorithm or an image processing algorithm to pictures of the plurality of pictures taken by the second digital camera (58) for calculating the region of interest (64) in the pictures of the plurality of pictures for determining the physiological parameter of the subject of interest (20) during examination; a camera system (50) for determining, in a contact-free way, biometric parameters and physiological parameters of a subject of interest (20) to be examined by use of a medical imaging modality (10) and using such method; and—a medical imaging modality (10) configured for acquisition of scanning data of at least a portion of a subject of interest (20), the medical imaging modality (10) comprising such camera system.
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公开(公告)号：US10993748B2
公开(公告)日：2021-05-04
申请号：US15763645
申请日：2016-09-21
发明人： Drazenko Babic , Thirukumaran Thangaraj Kanagasabapathi , Susanne Maaike Valster , Bernardus Hendrikus Wilhelmus Hendriks
摘要： The invention relates a system for implanting an implantable device in bone tissue, a processing unit for such system, a method of implanting an implantable device and a method of providing information for an implanting of an implantable device. In view of the finding that a fat content in cancellous bone is higher than a fat content in compact bone, the lipids fraction, which can be determined by optical means, e.g. spectroscopy, can be used to determine correct screw placement in healthy bone.
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公开(公告)号：US10769787B2
公开(公告)日：2020-09-08
申请号：US16063920
申请日：2016-12-22
发明人： Michael Grass , Dirk Schäfer , Thirukumaran Thangaraj Kanagasabapathi , Bernardus Hendrikus Wilhelmus Hendriks
IPC分类号： G06K9/00 , G06T7/00 , A61B90/00 , G06T7/11 , G06T7/33 , A61B6/00 , A61B8/08 , A61B34/20 , A61B17/00
摘要： The present invention relates to providing a projection data for providing a guidance image. In order to provide an enhanced guiding image technique for generating a guidance image of the patient's anatomy to be projected on the body surface of the patient, such that a at least a basis for a corrected guidance image for a better correlation to the patient's current motion can be provided, in particular to the patient's current breathing motion state, a device (10) for providing a projection data set is provided that comprises a storage means (12), an input interface (14), a processing unit (16) and an output interface (18). The storage means is configured to store a pre-determined basis data set representing a 3D tomographic image of a subject (20). The input interface is configured to receive reference data representing a current spatial depiction at least of a target region (22) of the subject. The processing unit is configured to register the reference data on the pre-determined basis data set. The processing unit is further configured to transform, based on the reference data and the result of the registration, the pre-determined basis data set resulting in a working data set representing a transformed 3D tomographic image indicating the current spatial anatomy relation at least for the target region of the subject. The processing unit is also configured to segment the working data set resulting in a projection data set representing the target region of the subject. Still further, output interface is configured to provide the projection data set for a further purpose.
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