Flexible medical reference device, medical navigation system, and method
A navigation system and equipment technology, applied in the fields of data processing equipment, medical navigation system, and tracking medical reference equipment, can solve problems such as accuracy weakening
Inactive Publication Date: 2016-11-16
阿斯卡拉波股份有限公司
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Problems solved by technology
The accuracy of the marking device and thus the position data of the body part on which the navigation-supported surgery should be based is thus impaired
Method used
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[0063] figure 1 An advantageous embodiment of the navigation system 10 according to the invention and a patient 14 with a thigh (in this case Oberschenkel in German) 16 on a bed 12 are shown in a perspective view. The navigation system 10 includes an advantageous embodiment of the reference device according to the invention, designated with reference numeral 18 . Reference equipment 18 has fastening means 20 ( figure 2), the reference equipment can be fixed non-invasively on the thigh 16 by means of fastening means.
[0064] If the thigh 16 moves in space, the reference device 18 also moves. Movement can be detected by detection device 22 of navigation system 10 . For this purpose, the detection device 22 may comprise a camera. The camera is shown here as a stereo camera 24 . However, other types of cameras are also possible. The image signals of the detection device 22 can be transmitted to a data processing device 26 . Using the image signals, data processing device ...
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The invention relates to a medical referencing device for a medical navigation system (10), by means of which medical navigation system a motion of a body part (16), in particular of the thigh (16), can be tracked in space by means of the referencing device (18; 100; 120; 130) attached to said body part. According to the invention, in order to provide such a referencing device by means of which position data of the body part can be obtained in a manner that is gentle on the patient, the referencing device comprises a fastening apparatus (20) for non-invasively fastening the referencing device (18; 100; 120; 130) to the body part (16) and by means of a referencing body (38), which extends in a planar manner and can be elastically elongated in at least one direction (34, 36) of the extent and which can be adapted in the shape of said referencing body to the contour of the body part (16) and has a marking region (50; 102; 122; 132), which comprises or forms a pattern (54; 136), wherein the referencing body (38) is designed in such a way that the pattern (54; 136) is undeformed or substantially undeformed at least in some sections when the body part (16) is moved, and wherein, at least in some sections, the pattern (54) can be used by the navigation system (10) as a reference for tracking the body part (16) in space. The invention further relates to a medical navigation system and to a method for tracking a medical referencing device in space by means of a navigation system.
Description
technical field [0001] The invention relates to a medical reference device for a medical navigation system with which the movement of a body part, in particular the thigh, can be tracked in space by means of the reference device worn on the thigh. [0002] Furthermore, the invention relates to a medical navigation system for tracking medical reference equipment in space, comprising medical reference equipment, a detection device for generating images of the reference equipment and providing image signals related thereto, and for processing Data processing equipment for image signals. [0003] Furthermore, the invention relates to a method for tracking medical reference equipment in space with a navigation system. Background technique [0004] A variety of medical reference equipment is known, eg for knee repairs, in order to facilitate the implantation of artificial knee joints for the surgeon. Conventional reference equipment comprises a marker device with marker elements...
Claims
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IPC IPC(8): A61B90/00
CPCA61B2017/00858A61B2090/3983A61B2090/3991A61B2034/2065A61B90/39A61B34/20
Inventor 斯特凡·加斯纳施特菲·阿尔特曼马库斯·米勒
Owner 阿斯卡拉波股份有限公司