US5383454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for indicating the position of a surgical probe within a head on an image of the head
Assignee: Saint Louis University
•
Filing: 1992-07-02
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Granted: 1995-01-24
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Expires: 2012-07-02
Abstract
Abstract A system for indicating a position of a tip of a probe which is positioned within an object on cross-sectional, scanned images of the object. The object includes reference points and the images of the object include reference images corresponding to the reference points. An array for receiving radiation emitted from the probe and from the reference points is digitized by a three dimensional digitizer to measure the position of the tip of the probe relative to the reference points of the object. A computer employing translational software translates the position of the tip of the probe into a coordinate system corresponding to the coordinate system of the cross-sectional images. A stereotactic imaging system selects the image of the object closest to the measured position of the tip of the probe and displays the selected image and a cursor representing the position of the tip of the probe on the selected images.
Inventors
- 👤 Richard D. Bucholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:41
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0059; A61B5/0073; A61B34/00; A61B34/20; A61B5/0062; A61B5/0064; A61B5/06; A61B5/103; A61B5/107; A61B5/1077; A61B6/00; A61B6/12; A61B6/50; A61B6/501; A61B6/52; A61B6/5211; A61B6/5229; A61B6/5247; A61B8/00; A61B8/52; A61B8/5215; A61B8/5238; A61B90/00; A61B90/10; A61B90/36; B; B82; B82Y; B82Y15/00; A61B17/00; A61B2017/00681; A61B2017/00738; A61B34/10; A61B2034/101; A61B2034/105; A61B2034/2046; A61B2034/2055; A61B2034/2068; A61B2034/2072; A61B2090/363; A61B2090/364; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3788; A61B90/39; A61B2090/3937; A61B2090/3945; A61B2090/3954; A61B2090/3983; A61B8/08; A61B8/0808; A61B90/14
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
183 words
A system for indicating a location within a body of a patient, said system comprising: reference points means having a position in fixed 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 location outside the body for providing a reference; a surgical probe including a tip having a position; first means for determining the position of the tip of the surgical 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 tip relative to the reference points means of the body is a known position; means for translating the known position of the tip of the surgical 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 tip of the surgical probe.
Claim 2
Independent Claim
183 words
A system for indicating a location within a body of a patient, said system comprising: reference points means having a position in fixed 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 location outside the body for providing a reference; a surgical probe including a tip having a position; first means for determining the position of the tip of the surgical 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 tip relative to the reference points means of the body is a known position; means for translating the known position of the tip of the surgical 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 tip of the surgical probe.
Claim 3
Dependent Claim
28 words
The system of claim 1 wherein the displaying means comprises: means for displaying an image representing the tip of the probe on the displayed image of the body.
Claim 4
Dependent Claim
49 words
The system of claim 2 wherein the second means comprises: a base adapted to be mounted on the body in a position having a fixed relationship with the reference points means of the body; and means for measuring the position of the base with respect to the reference means.
Claim 5
Dependent Claim
64 words
The system of claim 3 wherein the reference means comprises an array having sensors and wherein the probe comprises a bayonet forceps having emitters in line worth the tip of the forceps and below a surgeon's line of sight when using the forceps, said emitters for communicating with the sensors of the array to indicate a position of the probe relative to the array.
Claim 6
Dependent Claim
31 words
The system of claim 4 further comprising additional emitters on the base for communicating with the sensors of the array to indicate the position of the base relative to the array.
Claim 7
Dependent Claim
24 words
The system of claim 4 further comprising three dimensional digitizer means for digitizing signals generated the sensors in response to signals from the emitters.
Claim 8
Dependent Claim
54 words
The system of claim 1 wherein the translating means comprises a computer connected between the second means and the displaying means and a translational software program for controlling the operation of the computer so that coordinates supplied to the computer by the second means are converted into corresponding coordinates supplied to the displaying means.
Claim 9
Dependent Claim
13 words
The system of claim 1 wherein the displaying means comprises an imaging system.
Claim 10
Dependent Claim
24 words
The system of claim 1 further comprising means for compensating for temperature changes which affect the operation of the first and second determining means.
Claim 11
Dependent Claim
28 words
The system of claim 1 wherein the displaying means comprises means for displaying a cursor representing the tip of the probe on the displayed image of the body.
Claim 12
Dependent Claim
30 words
The system of claim 1 wherein the reference points define a reference plane and wherein the coordinate system of the images includes an X-Y plane parallel to the reference plane.
Claim 13
Dependent Claim
78 words
The system of claim 1 wherein the reference means comprises an array having sensors and wherein the probe comprises a bayonet forceps having a line of sight through the forceps and having two emitters mounted on the forceps which are in line with the tip of the forceps and below the line of sight through the forceps, said emitters for communicating with the sensors of the array to indicate the position of the probe relative to the array.
Claim 14
Dependent Claim
30 words
The system of claim 1 further comprising radiolucent pins having radiopaque tips, said pins adapted to be located on the body so that said tips define the reference points means.
Claim 15
Independent Claim
157 words
A method for indicating a position of a tip of a surgical probe which is positioned within a body of a patient on images of the body wherein the body and the images of the body include reference images corresponding to reference points in a position on the body, said method comprising the steps of: determining the position of the tip of the surgical probe relative to a reference means having a location outside the body; determining the position of the reference points of the body relative to the reference means so that the position of the tip relative to the reference points of the body is a known position; translating the known position of the tip of the surgical probe to provide a translated position within a coordinate system corresponding to the images of the body; and displaying an image of the body which corresponds to the translated position of the tip of the surgical probe.
Claim 16
Independent Claim
157 words
A method for indicating a position of a tip of a surgical probe which is positioned within a body of a patient on images of the body wherein the body and the images of the body include reference images corresponding to reference points in a position on the body, said method comprising the steps of: determining the position of the tip of the surgical probe relative to a reference means having a location outside the body; determining the position of the reference points of the body relative to the reference means so that the position of the tip relative to the reference points of the body is a known position; translating the known position of the tip of the surgical probe to provide a translated position within a coordinate system corresponding to the images of the body; and displaying an image of the body which corresponds to the translated position of the tip of the surgical probe.
Claim 17
Dependent Claim
30 words
The method of claim 14 wherein the displaying step comprises the step of: displaying an image representing the tip of the surgical probe on the corresponding image of the body.
Claim 18
Dependent Claim
71 words
The method of claim 14 wherein the reference means comprises an array having sensors and wherein the step of determining the position of the reference points of the body relative to the reference means comprises the steps of mounting a base on the body in a position having a fixed spatial relationship with the reference points of the body and measuring the position of the base with respect to the array.
Claim 19
Dependent Claim
25 words
The method of claim 16 further comprising the step of emitting radiation from the base to the array to indicate the position of the base.
Claim 20
Dependent Claim
64 words
The method of claim 14 wherein the step of determining the position of the reference points of the body with respect to the reference means comprises the steps of placing the tip of the probe at the reference points and determining the position of the tip at the reference points to define the position of the reference points with respect to the reference means.
Claim 21
Dependent Claim
21 words
The method of claim 14 further comprising the step of compensating for temperature changes affecting the first and second determining steps.
Claim 22
Independent Claim
169 words
A system for indicating a position within an object, said system comprising: reference points means having a position in fixed relation to the object for providing reference points; means for generating images of the object, said images including reference images corresponding to the reference points means; reference means having a location outside the object for providing a reference; a probe including a tip having a position; first means for determining the position of the tip of the probe relative to the reference means; second means for measuring the position of the reference points means of the object relative to the reference means so that the position of the tip relative reference points means of the object is a known position; means for translating the known position of the tip of the probe to provide a translated position within a coordinate system corresponding to the images of the object; and means for displaying an image of the object which corresponds to the translated position of the tip of the probe.
Claim 23
Independent Claim
169 words
A system for indicating a position within an object, said system comprising: reference points means having a position in fixed relation to the object for providing reference points; means for generating images of the object, said images including reference images corresponding to the reference points means; reference means having a location outside the object for providing a reference; a probe including a tip having a position; first means for determining the position of the tip of the probe relative to the reference means; second means for measuring the position of the reference points means of the object relative to the reference means so that the position of the tip relative reference points means of the object is a known position; means for translating the known position of the tip of the probe to provide a translated position within a coordinate system corresponding to the images of the object; and means for displaying an image of the object which corresponds to the translated position of the tip of the probe.
References Cited (Backward Citations)
US3821469A
Cited
US3983474A
Cited
US4182312A
Cited
US4341220A
Cited
US4608977A
Cited
US4638798A
Cited
GB2094590A
Cited
EP0062941A1
Cited
US4651732A
Cited
US4701049A
Cited
US4660970A
Cited
US4753528A
Cited
US4841967A
Cited
US4705395A
Cited
US4706665A
Cited
DE3508730A1
Cited
US4782239A
Cited
US4764016A
Cited
US4743771A
Cited
JPS62327A
Cited
US4805615A
Cited
US4705401A
Cited
US4737032A
Cited
US4779212A
Cited
US4709156A
Cited
US4794262A
Cited
US4821200A
Cited
US4822163A
Cited
US4723544A
Cited
US4791934A
Cited
US4733969A
Cited
US4743770A
Cited
US4761072A
Cited
US4750487A
Cited
US4825091A
Cited
US4745290A
Cited
US4875478A
Cited
US4809694A
Cited
US4836778A
Cited
WO1988009151A1
Cited
US4829373A
Cited
US4931056A
Cited
US5094241A
Cited
US4945914A
Cited
US4991579A
Cited
US5211164A
Cited
US5016639A
Cited
US5178164A
Cited
US5097839A
Cited
US5119817A
Cited
US5142930A
Cited
US5027818A
Cited
WO1990005494A1
Cited
US5099846A
Cited
US5197476A
Cited
WO1991007726A1
Cited
US5224049A
Cited
US5107839A
Cited
US5017139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-23 | 1998-07-25 | 1999-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-23 | 2002-07-25 | 2003-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-23 | 2006-07-25 | 2007-01-24 | $7700.00 | Window Closed / Lapsed |