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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0436897 (2006-05-17) |
| 등록번호 | US-8190389 (2012-05-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 49 인용 특허 : 557 |
Devices and methods wherein an adapter is used to attach an electromagnetic image guidance component to a medical device such that an electromagnetic image guidance system may be used to track the location of the medical device within the body of a human or animal subject.
1. A calibration tool for use in calibrating an image guided surgery system to an elongate medical device that has a substantially fixed shape and a distal end, said calibration tool comprising: a substantially rigid body having a receiving groove, a first calibration tip and a second calibration ti
1. A calibration tool for use in calibrating an image guided surgery system to an elongate medical device that has a substantially fixed shape and a distal end, said calibration tool comprising: a substantially rigid body having a receiving groove, a first calibration tip and a second calibration tip;the medical device being insertable into the receiving groove with the distal end of the medical device in a known position within one of said first and second calibration tips;said first and second calibration tips being alternately placeable in a known location relative to an electromagnetic transmitter. 2. The calibration tool of claim 1 wherein said first and second calibration tips extend in 180 degree opposite directions from one another. 3. A method for calibrating an image guided surgery system for use with an elongate medical device that has a substantially fixed shape and a distal end, said method comprising the steps of: (A) providing a calibration tool comprising a substantially rigid body having a receiving groove, a first calibration tip and a second calibration tip formed therein;(B) inserting the medical device into the receiving groove with the distal end of the medical device positioned in a known position within one of said first and second calibration tips;(C) positioning the first calibration tip in a known position relative to an electromagnetic transmitter while obtaining at least one reading using the image guided surgery system;(D) positioning the second calibration tip in a known position in relation to the electromagnetic transmitter while obtaining at least one additional reading using the image guided surgery system; and(E) calibrating the image guided surgery system to the substantially fixed shape of the medical device on the basis of the readings obtained in Steps C and D. 4. A method according to claim 3 wherein Step C comprises obtaining a plurality of readings with the catheter in differing positions while maintaining the first calibration tip in said known location relative to said electromagnetic transmitter. 5. A method according to claim 3 wherein Step D comprises obtaining a plurality of readings with the catheter in differing positions while maintaining the second calibration tip in said known location relative to said electromagnetic transmitter. 6. A method according to claim 3 wherein a tip receiving location is formed in the electromagnetic transmitter used in Steps C and D and wherein the first and second calibration tips are maintained in known location relative to said electromagnetic transmitter by inserting the first and second calibration tips into said tip receiving location. 7. The method of claim 3 wherein, the first and second calibration tips extend in 180 degree opposite directions from one another.
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