Patent US5305203A successfully refreshed from Google Patents.
US5305203A
Expired / Lapsed
US
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Computer-aided surgery apparatus
Assignee: Xenon Research Inc
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Filing: 1990-10-02
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Granted: 1994-04-19
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Expires: 2010-10-02
Abstract
Abstract A computer-aided surgical device for aiding a surgeon in positioning a surgical instrument (power or manual) when performing surgery on unexposed and exposed portions of a patient.
Inventors
- 👤 Simon Raab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:25
CPC Classifications
B; B25; B25J; B25J9/00; B25J9/16; B25J9/1679; B25J9/1692; A; A61; A61B; A61B17/00; A61B34/00; A61B34/70; A61B90/00; A61B90/50; G; G16; G16H; G16H40/00; G16H40/60; G16H40/63; G16Z; G16Z99/00; A61B2017/00017; A61B2017/00199; A61B2017/00973; A61B34/10; A61B34/25; A61B46/00; A61B46/10; G05; G05B; G05B2219/00; G05B2219/30; G05B2219/37; G05B2219/37459; G05B2219/45; G05B2219/45123
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
403 words
A method for aiding a medical practitioner in positioning and orienting a surgical instrument or implant, which surgical instrument or implant is manipulated by said medical practitioner while performing medical procedures on a portion of a patient, the position and orientation of said instrument or implant being determined in a three-dimensional co-ordinate system relative to a reference point and the position and orientation of said portion being determined in said three-dimensional co-ordinate system relative to said reference point, said reference point being disposed outside of and apart from said patient: comprising: continuously electronically sensing, or determining by 2- or 3-dimensional imaging techniques, the position and orientation of said portion in said three-dimensional co-ordinate system to obtain three-dimensional target data of the position and orientation of said portion in said three-dimensional co-ordinate system relative to said reference point; converting said target to target signals for presenting the position and orientation of said portion on a display means; providing said target signals to a display device whereby a target display of the position and orientation of said portion is presented on said display device; continuously electronically sensing the position and orientation of said surgical instrument or implant in said three-dimensional co-ordinate system to obtain three-dimensional instrument data of the position and orientation of said instrument or implement in said three-dimensional co-ordinate system relative to said reference point; means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument or implant on said display means; providing said instrument signals to said display device whereby an instrument display of the position and orientation of said instrument or implant is presented on said display device; wherein, as the instrument or implant is manipulated by said medical practitioner, said instrument data changes in accordance with changes in the position and orientation of said instrument, and said instrument display changes in accordance with the changes in said instrument data; whereby, the position and orientation of said instrument or implant, relative to said portion, is dynamically displayed on said display device; and further including the step of providing a known physical relationship between said portion on said patient and said reference point; and still further including displaying a main menu on said display means, said main menu including a plurality of sub-menus; selecting a sub-menu of interest, said sub-menu including a plurality of instruction steps; and performing the steps as presented on the sub-menu.
Claim 2
Independent Claim
403 words
A method for aiding a medical practitioner in positioning and orienting a surgical instrument or implant, which surgical instrument or implant is manipulated by said medical practitioner while performing medical procedures on a portion of a patient, the position and orientation of said instrument or implant being determined in a three-dimensional co-ordinate system relative to a reference point and the position and orientation of said portion being determined in said three-dimensional co-ordinate system relative to said reference point, said reference point being disposed outside of and apart from said patient: comprising: continuously electronically sensing, or determining by 2- or 3-dimensional imaging techniques, the position and orientation of said portion in said three-dimensional co-ordinate system to obtain three-dimensional target data of the position and orientation of said portion in said three-dimensional co-ordinate system relative to said reference point; converting said target to target signals for presenting the position and orientation of said portion on a display means; providing said target signals to a display device whereby a target display of the position and orientation of said portion is presented on said display device; continuously electronically sensing the position and orientation of said surgical instrument or implant in said three-dimensional co-ordinate system to obtain three-dimensional instrument data of the position and orientation of said instrument or implement in said three-dimensional co-ordinate system relative to said reference point; means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument or implant on said display means; providing said instrument signals to said display device whereby an instrument display of the position and orientation of said instrument or implant is presented on said display device; wherein, as the instrument or implant is manipulated by said medical practitioner, said instrument data changes in accordance with changes in the position and orientation of said instrument, and said instrument display changes in accordance with the changes in said instrument data; whereby, the position and orientation of said instrument or implant, relative to said portion, is dynamically displayed on said display device; and further including the step of providing a known physical relationship between said portion on said patient and said reference point; and still further including displaying a main menu on said display means, said main menu including a plurality of sub-menus; selecting a sub-menu of interest, said sub-menu including a plurality of instruction steps; and performing the steps as presented on the sub-menu.
Claim 3
Dependent Claim
49 words
A method as defined in claim 1 for performing a drilling operation, said surgical instrument comprising a drill, said sub-menu comprising a Drill Menu, said method comprising: digitizing entry and exit points; installing drill bit in said drill; and drilling a hole from said entry to said exit points.
Claim 4
Dependent Claim
45 words
A method as defined in claim 1, for performing a sawing operation, said sub-menu comprising a Sawing Menu, said method comprising: digitizing a plane periphery; digitizing a perpendicular to said plane; installing the saw and saw blade on said manipulating means; sawing through said plane.
Claim 5
Dependent Claim
28 words
A method as defined in claim 1, for performing a measurement operation, said sub-menu comprising a Measurement Menu, said method comprising selecting a sub-sub-menu of said Measurement Menu.
Claim 6
Dependent Claim
49 words
A method as defined in claim 4 for performing the operation of measuring the distance from a first point to a second point, said sub-menu comprising a Point-to-Point Distance Menu, said method comprising: digitizing one of said points; digitizing the other one of said points; and calculating said distance.
Claim 7
Dependent Claim
82 words
A method as defined in claim 4 for performing a spinal curvature measurement operation, said sub-sub-menu comprising a Spinal Curvature Menu, said method comprising: displaying the starting and finishing vertebrae of the patient's spine on said display means and performing a scan along the patient's spine of predetermined length as determined by the selection of the starting and finishing vertebrae on said display means; presenting graphics on the screen of a generic spine with the curvature calculated as per the digitized points.
Claim 8
Dependent Claim
28 words
A method as defined in claim 1 for performing a stereotaxic operation, said sub-menu comprising a Stereotaxic Menu, said method comprising selecting a sub-sub-menu of said Stereotaxic Menu.
Claim 9
Dependent Claim
95 words
A method as defined in claim 7 for performing an object location operation, said sub-sub-menu comprising an Object Location Menu, said method comprising: providing data concerning said object as provided in 3-dimension by an imaging device such as a CAT scan; providing three radiopaque landmarks on said patient, said data being related to said landmarks; converting said data to the associated three-dimensional co-ordinate system of said device; mounting a probe on said manipulating means; disposing said probe at said object; creating a locator file with the data provided when said probe is at said object.
Claim 10
Dependent Claim
55 words
A method as defined in claim 7 for performing a blind hole location operation, said sub-sub-menu comprising a Blind Hole Location Menu, said method comprising: prior to the use of an orthopedic device, the orientation and position of the blind hole is measured; and once the surgical procedure is completed, the blind hole is redefined.
Claim 11
Dependent Claim
71 words
A method as defined in claim 7 for performing an implant orientation operation, said sub-sub-menu comprising an Implant Orientation Menu, said method comprising: attaching a reference jig to said patient and digitizing the skeletal points of said patient; after a surgical procedure has proceeded, redigitizing said reference jig; mounting said implant on specialized implant holders attached to said manipulating means; and placing said implant using a display on said display means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-18 | 1997-10-18 | 1998-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-18 | 2001-10-18 | 2002-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-18 | 2005-10-18 | 2006-04-19 | $7700.00 | Window Closed / Lapsed |