System for indicating the position of a surgical probe within a head on an image of the head
First Claim
1. A system for use with a part of a body of a patient, said system comprising:
- an ultrasound probe adapted to be positioned adjacent to and scanning the body part;
means, responsive to the ultrasound probe, for generating an ultrasound image of the body part corresponding to the position of the ultrasound probe;
means for determining the position of the ultrasound probe relative to the body part, wherein the determining means comprises;
an array positioned in communication with the ultrasound probe;
first means for determining the position of the ultrasound probe relatively to the array;
second means for determining the position of the body part relative to the array; and
means for translating the position of the ultrasound probe as determined by the first means into a coordinate system corresponding to the position of the body part as determined by the second means;
means for scanning the body part to create scanned images thereof; and
means, responsive to the scanning means, for generating a scanned image of the body part corresponding to the determined position of the ultrasound probe relative to the body part whereby the ultrasound image of the body part corresponds to and may be compared with the scanned image of the body part.
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Accused Products
Abstract
A system for determining a position of a probe (302) relative to an object such as a head (390) of a body of a patient. The head includes a surface such as a forehead (394) having a contour. The head is placed in a cradle (392) equipped with an arc (393). The cross sectional images of the head are determined relative to the arc. A hand held unit (380) optically scans the forehead and the arc. During scanning to generate the cross sectional images, the optical scanner (380) is used to determine the position of the forehead (394) relative to the cradle (392). During surgery, the optical scanner (380) also determines the position of the forehead (394) relative to a base ring (306). An array (300) for receiving radiation emitted from the probe (302) and from the base ring (306) generates signals indicating the position of the tip of the probe (302) relative to the base ring (306). A stereotactic imaging system selects and displays the image of the head closest to the measured position of the tip of the probe (302).
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Citations
14 Claims
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1. A system for use with a part of a body of a patient, said system comprising:
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an ultrasound probe adapted to be positioned adjacent to and scanning the body part; means, responsive to the ultrasound probe, for generating an ultrasound image of the body part corresponding to the position of the ultrasound probe; means for determining the position of the ultrasound probe relative to the body part, wherein the determining means comprises; an array positioned in communication with the ultrasound probe; first means for determining the position of the ultrasound probe relatively to the array; second means for determining the position of the body part relative to the array; and means for translating the position of the ultrasound probe as determined by the first means into a coordinate system corresponding to the position of the body part as determined by the second means; means for scanning the body part to create scanned images thereof; and means, responsive to the scanning means, for generating a scanned image of the body part corresponding to the determined position of the ultrasound probe relative to the body part whereby the ultrasound image of the body part corresponds to and may be compared with the scanned image of the body part. - View Dependent Claims (2, 3)
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4. A system for use with a part of a body of a patient, said system comprising:
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an ultrasound probe adapted to be positioned adjacent to and scanning the body part; means, responsive to the ultrasound probe, for generating an ultrasound image of the body part corresponding to the position of the ultrasound probe; means for determining the position of the ultrasound probe relative to the body part, wherein the determining means comprises reference points means having a position in fixed relation to the body part for providing reference points, said scanned images including reference images corresponding to the reference points means; reference means having a location outside the body part for providing a reference; first means for determining the position of the ultrasound probe relative to the reference means; second means for determining the position of the reference points means of the body part relative to the reference means so that the position of the ultrasound probe relative to the reference points means of the body part is a known position; and means for translating the known position of the ultrasound probe to provide a translated position within a coordinate system corresponding to the scanned images of the body part; means for scanning the body part to create scanned images thereof; and means, responsive to the scanning means, for generating a scanned image of the body part corresponding to the determined position of the ultrasound probe relative to the body part whereby the ultrasound image of the body part corresponds to and may be compared with the scanned image of the body part. - View Dependent Claims (5, 6, 7)
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8. A method for use with a part of the body of a patient, said method comprising the steps of:
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scanning the body part with a ultrasound probe positioned adjacent the body part; generating in response to the scanning step an ultrasound image of the body part corresponding to the position of the ultrasound probe; determining the position of the ultrasound probe relative to the body part, wherein the determining step comprises the steps of positioning an array in communication with the ultrasound probe; first determining the position of the ultrasound probe relative to the array; second determining the position of the body part relative to the array; and translating the position of the ultrasound probe as determined by the first determining step into a coordinate system corresponding to the position of the body part as determined by the second determining step; scanning the body part to create scanned images thereof; and generating in response to the second scanning step a scanned image of the body part corresponding to the determined position of the ultrasound probe relative to the body part whereby the ultrasound image of the body part corresponds to and may be compared with the scanned image of the body part. - View Dependent Claims (9, 10)
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11. A method for use with a part of the body of a patient, said method comprising the steps of:
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scanning the body part with an ultrasound probe positioned adjacent the body part; generating in response to the scanning step an ultrasound image of the body part corresponding to the position of the ultrasound probe; scanning the body part to create scanned images thereof; determining the position of the ultrasound probe relative to the body part, wherein the determining step comprises the steps of determining the position of the ultrasound probe relative to a reference means having a position in fixed relation to the body part; determining the position of the body part relative to the reference means so that the position of the ultrasound probe relative to the body part is a known position; and translating the known position of the ultrasound probe to provide a translated position within a coordinate system corresponding to the scanned images of the body part; and generating in response to the second scanning step a scanned image of the body part corresponding to the determined position of the ultrasound probe relative to the body part whereby the ultrasound image of the body part corresponds to and may be compared with the scanned image of the body part. - View Dependent Claims (12, 13)
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14. A system for providing a display of a scan of a scanning technology, the display showing a cross section of a particular position within the body, said system comprising:
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reference points means having a position in relation to the body for providing reference points; means for generating images of the body, said images including reference images corresponding to the reference points means; reference means having a position outside the body for providing a reference; an ultrasound probe having a position and generating an ultrasound image of the body; first means for determining the position of the ultrasound probe relative to the reference means; second means for determining the position of the reference points means of the body relative to the reference means so that the position of the ultrasound probe relative to the reference points means of the body is a known position; means for translating the known position of the ultrasound probe to provide a translated position within a coordinate system corresponding to the images of the body; and means for displaying an image of the body to provide a displayed image which corresponds to the translated position of the ultrasound probe and for displaying the ultrasound image of the body whereby the displayed image and the ultrasound image correspond to each other.
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Specification