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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0577068 (1990-09-04) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 374 인용 특허 : 0 |
An articulated arm has a plurality of arms connected to each other by joints. A pointer is connected to one of the plurality of arms. The arm nearest the pointer is the foremost arm of the articulated arm. Angular displacement sensors are provided at joints of the articulated arm, for producing angu
An articulated arm has a plurality of arms connected to each other by joints. A pointer is connected to one of the plurality of arms. The arm nearest the pointer is the foremost arm of the articulated arm. Angular displacement sensors are provided at joints of the articulated arm, for producing angular signals. Tomographical images of a patient\s body are displayed on a cathode-ray tube. The angular signals are converted to tomographical position signals corresponding to the tomographical images on the cathode-ray tube. In response to the tomographical position signals, the position of the tip of the pointer is displayed on the cathode-ray tube with a mark. The system can be used, for example, in locating a position on a patient\s body where an operation is to be performed.
A system for indicating a position in a patient\s body where an operation is to be performed, comprising: an articulated arm including a base and a plurality of arms, one of said plurality of arms being a foremost arm; said plurality of arms and base being connected to each other by a joint whereby
A system for indicating a position in a patient\s body where an operation is to be performed, comprising: an articulated arm including a base and a plurality of arms, one of said plurality of arms being a foremost arm; said plurality of arms and base being connected to each other by a joint whereby said plurality of arms are adapted to move and are connected by joints; a pointer having a tip connected to the end of the foremost arm for pointing at surgical positions; angular displacement sensing means provided at each of the joints, for producing angular signals representing an angular displacement of an adjacent arm; a cathode-ray tube display for displaying a plurality of tomographic images of a patient\s body combined with coordinates associated with the tomographic images; calculator means for responding to the angular signals and for producing arm position signals representing the position of the pointer, with respect to arm-base coordinates; coordinate conversion means for converting the arm position signals, based on the arm-base coordinates, to tomographic position signals corresponding to the tomographic images on the cathode-ray tube display with respect to CT coordinates; means, responsive to the tomographic position signals, and the position of said tip for producing a mark video signal; display means responsive to said mark video signal for displaying the position of the tip of the pointer on the cathode-ray tube display as a mark superimposing on the tomographic images developed on the cathode-ray tube display.
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