Patent US20100150102A1 successfully refreshed from Google Patents.
EP0326768A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Computer-aided surgery apparatus
Assignee: Faro Medical Technologies Inc
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Filing: 1988-12-13
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Granted: —
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Expires: 2008-12-13
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
EP
Data Source
google_patents
Last Synchronized
2026-10-25 04:01
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: 23
Claim 1
Independent Claim
237 words
A computer-aided surgical device, having an associated three-dimensional co-ordinate system, for aiding a surgeon in positioning a surgical instrument of implant when performing surgery on portions of a patient, said portions occupying positions and orientations in said patient defined either by the physical measurement of the position and orientation, in said co-ordinate system, of said portions and using said device, or by communication to said device from an external imaging or 3-dimensional information source, said measurement or communication defining three-dimensional target data of the position and orientation of said portions in said co-ordinate system ; whereby, said target data identifies the position and orientation of said portions to which surgical procedures are to be applied ; said device comprising ; a manipulating means (7,9) for manipulating the position and orientation of said surgical instrument, said manipulating means including sensing means for sensing the position and orientation of said instrument in said co-ordinate system and for developing three-dimensional instrument data proportional to said position and orientation of said instrument ; a display means (19) ; means (23) for converting said target data to target signals for presenting a target display on said display means ; means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument on said display means ; whereby, to guide said surgeon in manipulating said instrument to align it, in both position and orientation, with said target.
Claim 2
Dependent Claim
237 words
A computer-aided surgical device, having an associated three-dimensional co-ordinate system, for aiding a surgeon in positioning a surgical instrument of implant when performing surgery on portions of a patient, said portions occupying positions and orientations in said patient defined either by the physical measurement of the position and orientation, in said co-ordinate system, of said portions and using said device, or by communication to said device from an external imaging or 3-dimensional information source, said measurement or communication defining three-dimensional target data of the position and orientation of said portions in said co-ordinate system ; whereby, said target data identifies the position and orientation of said portions to which surgical procedures are to be applied ; said device comprising ; a manipulating means (7,9) for manipulating the position and orientation of said surgical instrument, said manipulating means including sensing means for sensing the position and orientation of said instrument in said co-ordinate system and for developing three-dimensional instrument data proportional to said position and orientation of said instrument ; a display means (19) ; means (23) for converting said target data to target signals for presenting a target display on said display means ; means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument on said display means ; whereby, to guide said surgeon in manipulating said instrument to align it, in both position and orientation, with said target.
Claim 3
Dependent Claim
74 words
A device as defined in claim 1 wherein said manipulating means comprises : electrogoniometer means (7) having a mounting end and an instrument end (7a) ; a reference block (9) ; said electrogoniometer means being mounted, at its mounting end, on said reference block at a reference point thereof, such that said electrogoniometer means is movable about said reference point ; said surgical instruments being mountable at said instrument end of said electrogoniometer means.
Claim 4
Dependent Claim
38 words
A device as defined in claim 2 and including means for mounting a surgical instrument at said instrument end of said electrogoniometer means to maintain a rigid connection and fixed orientation between said electrogoniometer means and said instrument.
Claim 5
Dependent Claim
84 words
A device as defined in claim 2 wherein said reference block (9) includes instrument position determining means for determining the position, orientation and length of a surgical instrument, said instrument position determining means comprising : reference holes (37) having a predetermined length and an orientation which is fixed relative to said reference point ; reference surfaces (35) having an orientation which is fixed relative to said reference point ; and a V-groove drill reference (39) whose orientation is fixed relative to said reference point.
Claim 6
Dependent Claim
57 words
A device as defined in claim 2 and further including : a mounting post (13) ; swingable arms (11) mounted on said mounting post and swingable about said mounting post ; said reference block being connected to said mounting post by said swingable arms ; whereby said reference block is movable relative to said mounting post (13).
Claim 7
Dependent Claim
36 words
A device as defined in claim 5 and further including means for providing a fixed physical relationship between a point on said patient and said reference block comprising a self-indexing screw (42) and a mechanical linkage.
Claim 8
Dependent Claim
70 words
A device as defined in claim 6 wherein said self-indexing screw (42) comprises a double self-indexing screw comprising : an elongated cylinder (43) ; a screw (45) extending centrally from one end of said elongated cylinder ; two alignment pins (47,49) extending from said one end of said elongated cylinder, said screw and said alignment pins being disposed in alignment ; means for rotating said screw without rotating said cylinder.
Claim 9
Dependent Claim
48 words
A device as defined in claim 7 wherein said mechanical linkage comprises a plurality of clamping members (81) interconnected by shafts ; each clamping member comprising at least one lateral opening for receiving a shaft and clamping means for fixedly clamping a received shaft to said clamping member.
Claim 10
Dependent Claim
66 words
A device as defined in claim 8 wherein said double self-indexing screw is connected to said mechanical linkage by a linear, spherical double self-indexing screw clamp (77) comprising a ball joint (79) and a clamping member (81) ; the free end of said double self-indexing screw being received by said ball joint (79) ; a shaft of said mechanical linkage being received by said clamping member.
Claim 11
Independent Claim
285 words
A method for aiding a surgeon in positioning a surgical instrument and using a computer aided surgical device, having an associated three-dimensional co-ordinate system, for aiding a surgeon in positioning a surgical instrument or implant when performing surgery on portions of a patient, said portions occupying positions and orientations in said patient defined either by the physical measurement of the position and orientation, in said co-ordinate system, of said portions and using said device, or by communication to said device from an external imaging or 3-dimensional information source, said measurement or communication defining three-dimensional target data of the position and orientation of said portions in said co-ordinate system ; whereby, said target data identifies the position and orientation of said portions to which surgical procedures are to be applied ; said device comprising ; a manipulating means for manipulating the position and orientation of said surgical instrument, said manipulating means including sensing means for sensing the position and orientation of said instrument in said co-ordinate system and for developing three-dimensional instrument data proportional to said position and orientation of said instrument ; a display means ; means for converting said target data to target signals for presenting a target display on said display means ; means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument on said display means ; whereby, to guide said surgeon in manipulating said instrument to align it, in both position and orientation, with said target ; said method comprising : displaying a Main Menu on said display means, said Main Menu including a plurality of sub-menus ; selecting a sub-menu of interest ; and performing the steps as presented on the sub-menu.
Claim 12
Independent Claim
285 words
A method for aiding a surgeon in positioning a surgical instrument and using a computer aided surgical device, having an associated three-dimensional co-ordinate system, for aiding a surgeon in positioning a surgical instrument or implant when performing surgery on portions of a patient, said portions occupying positions and orientations in said patient defined either by the physical measurement of the position and orientation, in said co-ordinate system, of said portions and using said device, or by communication to said device from an external imaging or 3-dimensional information source, said measurement or communication defining three-dimensional target data of the position and orientation of said portions in said co-ordinate system ; whereby, said target data identifies the position and orientation of said portions to which surgical procedures are to be applied ; said device comprising ; a manipulating means for manipulating the position and orientation of said surgical instrument, said manipulating means including sensing means for sensing the position and orientation of said instrument in said co-ordinate system and for developing three-dimensional instrument data proportional to said position and orientation of said instrument ; a display means ; means for converting said target data to target signals for presenting a target display on said display means ; means for converting said instrument data to instrument signals for presenting the position and orientation of said instrument on said display means ; whereby, to guide said surgeon in manipulating said instrument to align it, in both position and orientation, with said target ; said method comprising : displaying a Main Menu on said display means, said Main Menu including a plurality of sub-menus ; selecting a sub-menu of interest ; and performing the steps as presented on the sub-menu.
Claim 13
Dependent Claim
48 words
A method as defined in claim 10 for performing a drilling operation, said sub-menu comprising a Drill Menu, said method comprising : digitizing entry and exit points ; installing a drill on said manipulating means ; installing a drill bit in said drill ; and drilling a hole.
Claim 14
Dependent Claim
49 words
A method as defined in claim 10 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 15
Dependent Claim
28 words
A method as defined in claim 10 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 16
Dependent Claim
52 words
A method as defined in claim 13 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 17
Dependent Claim
75 words
A method as defined in claim 13 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 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 18
Dependent Claim
28 words
A method as defined in claim 10 for performing a steriotaxic operation, said sub-menu comprising a Stereotaxic Menu, said method comprising selecting a sub-sub-menu of said Stereotaxic Menu.
Claim 19
Dependent Claim
101 words
A method as defined in claim 16 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 20
Dependent Claim
57 words
A method as defined in claim 16 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 21
Dependent Claim
75 words
A Method as defined in claim 16 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.
Claim 22
Dependent Claim
57 words
A device as defined in claim 6 wherein said self-indexing screw comprises a saw-tooth self-indexing screw comprising : an elongated cylinder (143) ; a screw extending centrally from one end of said elongated cylinder (145) ; said one end of said cylinder comprising a saw-tooth arrangement (150) ; means for retaining said screw without retaining said cylinder.
Claim 23
Dependent Claim
47 words
A device as defined in claim 20 wherein said mechanical linkage comprises a plurality of clamping members interconnected by shafts ; each clamping member comprising at least one lateral opening for receiving a shaft and clamping means for fixedly clamping a received shaft to said clamping member.
References Cited (Backward Citations)
No citation records indexed.
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