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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0562213 (1990-07-31) |
| 우선권정보 | CA-0557814 (1988-02-01) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 567 인용 특허 : 0 |
To aid a medical practitioner in positioning a surgical instrument or implant when performing surgery on or examining portions of a patient, patient data is developed which identifies the position and orientation of the portion to which surgical procedures or examinations are to be applied. The posi
To aid a medical practitioner in positioning a surgical instrument or implant when performing surgery on or examining portions of a patient, patient data is developed which identifies the position and orientation of the portion to which surgical procedures or examinations are to be applied. The position and orientation of the instrument or implant is sensed and instrument data is developed from this sensing. The patient data is converted to objective signals to be displayed on a video display, and the instrument data is converted to instrument signals for presenting the position and orientation of the instrument or implant on the same display. Thus, by watching the display, the medical practitioner is aided in manipulating the instrument or implant relative to the portion.
A computer-aided surgical device, having an associated three-dimensional co-ordinate reference system, for aiding a medical practitioner is positioning a surgical instrument or implant when performing surgery on, or examining, portions of a orientations in or on said patient defined either by physic
A computer-aided surgical device, having an associated three-dimensional co-ordinate reference system, for aiding a medical practitioner is positioning a surgical instrument or implant when performing surgery on, or examining, portions of a orientations in or on said patient defined either by physical measurement of the positions and orientations, in said co-ordinate reference system, of said portions using said device, or by communication to said device, from an external 2- or 3-dimensional imaging information source, of the positions and orientations, in said co-ordinate reference system, of said portions, said measurement of said commutation defining two- or three-dimensional patient data of the position and orientation of said portions in said co-ordinate system; whereby, said patient data identifies the position and orientation of said portions to which surgical procedures, or examinations, are to be applied; said device comprising; a reference means having a referenced point in the reference co-ordinate system thereon; said reference means and said reference point being disposed outside of and apart from said patient; means for determining the position and orientation of said portion on said patient in said co-ordinate reference system relative to said reference point and for developing two- or three-dimensional patient display data proportional to said position and orientation of said portion; instrument position determining means including sensing means for sensing the position and orientation of said instrument or implant in said co-ordinate reference system relative to said reference point and for developing two- or three-dimensional instrument data proportional to said position and orientation of said instrument; a display means; means for converting said patient display data to objective signals for presenting an objective display on said display means, means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument or implant on said display means; and further including means for providing a known physical relationship between said portion on said patient and said reference point; whereby, the position and orientation of said portion and the position and orientation of said instrument or implant are both displayed on said display means; even when said patient is moved; whereby, to guide said medical practitioner in manipulating said instrument.
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