CN201409927Y - X-ray image calibration target used for minimally invasive spine surgical navigation - Google Patents
X-ray image calibration target used for minimally invasive spine surgical navigation Download PDFInfo
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- CN201409927Y CN201409927Y CN2009200733064U CN200920073306U CN201409927Y CN 201409927 Y CN201409927 Y CN 201409927Y CN 2009200733064 U CN2009200733064 U CN 2009200733064U CN 200920073306 U CN200920073306 U CN 200920073306U CN 201409927 Y CN201409927 Y CN 201409927Y
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Abstract
The utility model belongs to the field of medical devices and relates to an X-ray image calibration target specially used for minimally invasive spine surgical navigation. The X-ray image calibrationtarget comprises a light source upper stand, a light source lower stand, a middle ring, a target A, a target B, a support bar, an LED (light emitting diode), an upper ring cover, a junction box, a wiring cover, a target pressure plate and a socket, wherein the LED is adhered onto the light source upper stand and the light source lower stand respectively; the light source upper stand, the middle ring and the light source lower stand are connected with each other by the support bar in series and are fixed by screws; the screw of the wiring cover is fixed between the light source upper stand andthe light source lower stank; the junction box is connected and fixed with the wiring cover, and the upper ring cover is also fixed and connected with the light source upper stand; the target A and the target B are arranged on the middle ring and the light source lower stand, and are compressed by the target pressure plate. The X-ray image calibration target has compact structure, can ensure the machining accuracy, can be traced by an infrared space locator, and is applicable to X-ray image calibration of a C-shaped arm X-ray apparatus.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of minimally invasive spine surgical navigation X line image testing target.
Background technology
Technology of surgery navigation originates from neurosurgery, has been widely used in fields such as neurosurgery, spinal surgery, department of otorhinolaryngology, plastic surgery at present because case is more and risk is bigger in the spinal surgery, so the application of airmanship the most urgent with extensively
[1]Current, a class is based on C type arm X-ray production apparatus in the spinal surgery navigation product
[2], obtain the image document of operative region by radioscopy, and it is dumped in the image workstation, form the navigation reference picture.When the operating theater instruments that has tracer in the art acts on patient, the space orientation instrument traces into the position of operating theater instruments in patient coordinate, it is transformed in the image coordinate system, be superimposed with the navigation reference picture, just as real-time perspective, therefore this mode is also referred to as " virtual perspective ".After using this type of navigation system, reduced radioscopy number of times in the art, therefore professional radiation has just significantly reduced.C type arm X-ray production apparatus even can push away operative region can provide a preferable surgical environments to the doctor.This type of navigation system is applied to the simple relatively waist section spinal operation of anatomical structure more.
C type arm X-ray production apparatus fluoroscopy system can be thought the model of a photographing unit on principle, X ray is sent by focus, forms cone beam, passes irradiating object, arrives the imaging target surface, forms the fluoroscopy images of two dimension.Core procedure based on radioscopy image surgical navigational will be reflected to the operating theater instruments positional information on the fluoroscopy images according to this model exactly, just realizes the conversion that three dimensions is put two-dimensional space point under the plane of delineation coordinate system under the visual field coordinate system.For achieving the above object, need to determine earlier the camera inner parameter, as the radial distortion of focal length, camera lens, the uncertain graphical rule factor etc. with and external parameter, as position of camera and orientation or translation, pan angle and inclination angle etc.Although these parameters can be by directly measuring, but normally use the spatial point of some known three-dimensional coordinates and they comprise the image of these points, derive out by calculating, obtain camera CALCULATION OF PARAMETERS process by these known points and be referred to as camera and demarcate.
When finishing demarcation, operation guiding system also needs to solve the problem of fluoroscopy images distortion
[3]The fluoroscopy images deformation reason is because the image amplifier sphere effect of X-ray production apparatus and magnetic field skew that gravity causes cause, show as the distortion of radial distortion and local irregularities on image respectively, the degree of distortion is different along with the change in location of booster with mode
[4-6]Anamorphose is proofreaied and correct and just need be used testing target, datum mark that comprises demarcation and the luminaire that can be followed the tracks of by the space orientation instrument.
Present this type of external testing target, the FluoroTrax type x-ray imaging system of producing as German Traxtal company is demarcated target and is cost an arm and a leg because of it, and only sell product, concrete supplemental characteristic is not provided, the relevant software and hardware of developing operation guiding system is caused certain difficulty.
Prior art or the list of references relevant with this utility model have:
[1]Foley?KT，Smith?MM.Image-guided?spine?surgery[J].Neurosurg?Clin?North?Am，1996，7(2)：171-186.
[2]Nolte?LP，Slomczykowski?MA，Berlemanu?U，et?al.A?new?approach?to?computer-aidedspine?surgery：fluoroscopy-based?surgical?navigation[J].Eur?Spine?J，2000，9(Suppl?1)：78-88.
[3]Peter?MT，Vladimir?L，Liqun?F，et?al.Performance?and?Robustness?of?AutomaticFluoroscopic?Image?Calibration?in?a?New?Computer?Assisted?Surgery?System[A].In：MICCAI?2001.LNCS?2208[C].Berlin：Springer-Verlag，2001：1130-1136.
[4]Faugeras?O.Three-Dimensional?Computer?Vision：A?Geometric?Viewpoint[M].Cambridge，MA：MIT?Press，1993.
[5]Brack?C，Burghart?R，Czpof?A，et?al.Accurate?x-ray?navigation?incomputer-assisted?surgery[A].In?Proc.Of?the?12th?Int.Symp.On?ComputerAssisted?Radiology?and?Surgery[C].Springer，1998：1023-1025.
[6]Livyatan?H.Calibration?and?Gradient-Based?Rigid?Registration?of?FluoroscopicX-ray?to?CT?for?Intra?Operative?Navigation[D].Israel，The?Hebrew?University，2003：
Summary of the invention
The purpose of this utility model provides a kind of minimally invasive spine surgical navigation X line image testing target, described X line image testing target can obtain fluoroscopy images, positioning operation apparatus, correcting deformed image at any time in operation process, reduce the harm of lonizing radiation simultaneously to the doctor, and the import like product is cheap relatively, preferably applying.
This utility model minimally invasive spine surgical special-purpose X line image testing target that navigates comprises: the light source seat of honour (9), light source following (11), medium ring (10), A target (6), B target (7), support bar (12), light emitting diode (3), go up ring cowling (8), rosette (1), link cover of FIG (4), target pressing plate (5) and socket (2); Wherein, described light emitting diode (3) is bonded in respectively on the light source seat of honour (9) and the light source following (11); Wherein the light source seat of honour (9), medium ring (10), light source following (11) are contacted by support bar (12), and screw is fixed; Link cover of FIG (4) screw is fixed between the light source seat of honour and the medium ring; Rosette (1) and link cover of FIG (2), last ring cowling (8) and the light source seat of honour screw respectively are connected and fixed; A target (6), B target (7) place on following of medium ring and the light source, and with target pressing plate (5) by screw in compression, promptly make this utility model testing target.
The described minimally invasive spine surgical special-purpose X line image testing target that navigates, its profile is cylindrical, hollow, overall dimensions: diameter 340～480mm, height 180～280mm; Distance 50～80mm between the target of A target and B target, the distance 120～250mm between the light emitting diode on following of the light source seat of honour and the light source.
In this utility model, the described light source seat of honour is the butterfly ring of band cylindrical cap, ring external diameter Φ 340～Φ 480mm, ring internal diameter Φ 260～Φ 400mm, height 30～50mm, 90 °～120 ° of the angles that two faces of butterfly form.
In this utility model, respectively there are the concave station rank of 20 equally distributed installation hole of light emitting diode on described butterfly two surfaces, the interfloor distance 8～18mm at two-layer stepped hole center, big footpath Φ 4～Φ 12mm of stepped hole.
In this utility model, following of described light source is the butterfly annulus, ring external diameter Φ 340～Φ 480mm, ring internal diameter Φ 220～Φ 360mm, height 20～40mm, 90 °～120 ° of the angles that two faces of butterfly form, respectively there is the recessed stepped hole of 20 equally distributed installation light emitting diodes on butterfly two surfaces, interfloor distance 8～the 18mm at two-layer stepped hole center, big footpath Φ 4～Φ 12mm of stepped hole.
In this utility model, described A target, B target are the garden plate parts, diameter 200～390mm, and thickness 4～10mm has 80～130 of tapered blind hole on the plate face, taper hole size Φ 3～Φ 10mm, dark 1.5～5mm, bevel angle is 90 °～120 °,
In this utility model, the rectangular array arrangement of described taper hole, the ranks spacing is 14～25mm; Respectively put a rustless steel ball in each taper hole, and bond size Φ 2～Φ 5mm of steel ball with plectane.
The minimally invasive spine surgical described in the utility model special-purpose X line image testing target that navigates, the light source seat of honour wherein, following of light source adopt aluminum alloy materials to make, and described A target and B target adopt transparent organic glass and stainless shot to make.
Advantage of the present utility model is and can be followed the tracks of by the infrared spatial position finder that the X line image that can be used for C type arm X-ray machine is proofreaied and correct, its compact conformation, and machining accuracy can be guaranteed.
For the ease of understanding, below will describe in detail of the present invention by concrete drawings and Examples.It needs to be noted, instantiation and accompanying drawing only are in order to illustrate, obviously those of ordinary skill in the art can illustrate according to this paper, within the scope of the invention the present invention is made various corrections and change, and these corrections and change are also included in the scope of the present invention.
Description of drawings
Fig. 1 is the minimally invasive spine surgical special-purpose X line image testing target structural representation that navigates,
Wherein: 1. rosette, 2. socket, 3. light emitting diode, 4. link cover of FIG, 5. target pressing plate, the 6.A target, the 7.B target is 8. gone up ring cowling, the 9. light source seat of honour, 10. medium ring, following of 11. light sources, 12. support bars.
The specific embodiment
Embodiment 1
The light source seat of honour is the butterfly ring of band cylindrical cap, ring external diameter Φ 340mm, ring internal diameter Φ 260mm, height 30mm, 90 ° of the angles that two faces of butterfly form, respectively there are 20 equally distributed recessed stepped holes on butterfly two surfaces, the interfloor distance 8mm at two-layer stepped hole center, the big footpath Φ 4mm of stepped hole; Light emitting diode is installed in the stepped hole.
Following of light source is the butterfly annulus, ring external diameter Φ 340mm, ring internal diameter Φ 220mm, height 20mm, 90 ° of the angles that two faces of butterfly form, respectively there are 20 equally distributed recessed stepped holes on butterfly two surfaces, the interfloor distance 8 at two-layer stepped hole center, the big footpath Φ 4mm of stepped hole; Light emitting diode is installed in the stepped hole.
Medium ring is that external diameter is Φ 340mm, and internal diameter is Φ 220mm, and thickness is the ring-shaped work pieces of 8mm, has the Kong Kerang support bar of seven Φ 10mm to pass on the circular planes.
A target, B target are the garden plate parts, diameter 200mm, and thickness 4mm has 80 of tapered blind hole on the plate face, taper hole size Φ 310mm, dark 1.5mm, bevel angle is 90 ° °, the rectangular array arrangement of taper hole, the ranks spacing is 14mm; Respectively put a rustless steel ball in each taper hole, and bond together, the size Φ 25mm of steel ball with plectane.
Light emitting diode 3 is bonded in respectively on following 11 of the light source seat of honour 9 and the light source; The electric wire of the light emitting diode on following of the light source connects the light source seat of honour by the endoporus of support bar 12, so that the connection of electric appliance circuits; Socket 2 is fixed on the rosette 1 by screw thread, the nut that carries.
With seven support bars 12 the light source seat of honour 9, medium ring 10, following 11 of light source are chained together, and are fixed with screw; Link cover of FIG 4 is installed between the light source seat of honour and the medium ring, is screwed; After the electric elements wiring is finished, respectively rosette 1 and link cover of FIG 2, last ring cowling 8 and the light source seat of honour are connected and fixed with screw; A target 6, B target 7 are placed in respectively on following of medium ring and the light source, and pass through screw in compression with target pressing plate 5.
After the assembling, the overall dimensions of this testing target is: diameter 340mm, height 180mm, between the target of A target and B target apart from 50mm, between the light emitting diode on following of the light source seat of honour and the light source apart from 120mm.
Embodiment 2
The light source seat of honour is the butterfly ring of band cylindrical cap, ring external diameter Φ 480mm, ring internal diameter Φ 400mm, height 50mm, 120 ° of the angles that two faces of butterfly form, respectively there are 20 equally distributed recessed stepped holes on butterfly two surfaces, the interfloor distance 18mm at two-layer stepped hole center, the big footpath Φ 12mm of stepped hole; Light emitting diode is installed in the stepped hole.
Following of light source is the butterfly annulus, ring external diameter Φ 480mm, ring internal diameter Φ 360mm, height 40mm, 120 ° of the angles that two faces of butterfly form, respectively there are 20 equally distributed recessed stepped holes on butterfly two surfaces, the interfloor distance 18mm at two-layer stepped hole center, the big footpath Φ 12mm of stepped hole; Light emitting diode is installed in the stepped hole.
Medium ring is that external diameter is Φ 480mm, and internal diameter is Φ 360mm, and thickness is the ring-shaped work pieces of 20mm, has the Kong Kerang support bar of seven Φ 15mm to pass on the circular planes.
A target, B target are the garden plate parts, diameter 390mm, and thickness 10mm has 130 of tapered blind hole on the plate face, taper hole size Φ 10mm, dark 5mm, bevel angle is 120 °, the rectangular array arrangement of taper hole, the ranks spacing is 25mm; Respectively put a rustless steel ball in each taper hole, and bond together, the size Φ 5mm of steel ball with plectane.
Electric elements are installed: light emitting diode 3 is bonded in respectively on following 11 of the light source seat of honour 9 and the light source; The electric wire of the light emitting diode on following of the light source connects the light source seat of honour by the endoporus of support bar 12, so that the connection of electric appliance circuits; Socket 2 is fixed on the rosette 1 by screw thread, the nut that carries.
General assembly: the light source seat of honour 9, medium ring 10, following 11 of light source are chained together, and are fixed with screw with seven support bars 12; Link cover of FIG 4 is installed between the light source seat of honour and the medium ring, is screwed; After the electric elements wiring is finished, respectively rosette 1 and link cover of FIG 2, last ring cowling 8 and the light source seat of honour are connected and fixed with screw; A target 6, B target 7 are placed in respectively on following of medium ring and the light source, and pass through screw in compression with target pressing plate 5.
After the assembling, the overall dimensions of this testing target is: diameter 480mm, height 280mm, between the target of A target and B target apart from 80mm, between the light emitting diode on following of the light source seat of honour and the light source apart from 250mm.
Claims (8)
1, a kind of minimally invasive spine surgical special-purpose X line image testing target that navigates, it is characterized in that it comprises: the light source seat of honour (9), light source following (11), medium ring (10), A target (6), B target (7), support bar (12), light emitting diode (3), last ring cowling (8), rosette (1), link cover of FIG (4), target pressing plate (5) and socket (2); Wherein, described light emitting diode (3) is bonded in respectively on the light source seat of honour (9) and the light source following (11); Wherein the light source seat of honour (9), medium ring (10), light source following (11) are contacted by support bar (12), and screw is fixed; Link cover of FIG (4) screw is fixed between the light source seat of honour and the medium ring; Rosette (1) and link cover of FIG (2), last ring cowling (8) and the light source seat of honour screw respectively are connected and fixed; A target (6), B target (7) place on following of medium ring and the light source, and pass through screw in compression with target pressing plate (5).
2, the minimally invasive spine surgical according to claim 1 special-purpose X line image testing target that navigates is characterized in that profile is cylindrical, hollow, overall dimensions: diameter 340～480mm, height 180～280mm; Distance 50～80mm between the target of A target and B target, the distance 120～250mm between the light emitting diode on following of the light source seat of honour and the light source.
3, the minimally invasive spine surgical according to claim 1 special-purpose X line image testing target that navigates, it is characterized in that the butterfly ring of the described light source seat of honour for the band cylindrical cap, ring external diameter Φ 340～Φ 480mm, ring internal diameter Φ 260～Φ 400mm, height 30～50mm, 90 °～120 ° of the angles that two faces of butterfly form.
4, the minimally invasive spine surgical according to claim 3 special-purpose X line image testing target that navigates, it is characterized in that respectively there are the concave station rank of 20 equally distributed installation hole of light emitting diode on described butterfly two surfaces, interfloor distance 8～the 18mm at two-layer stepped hole center, big footpath Φ 4～Φ 12mm of stepped hole.
5, the minimally invasive spine surgical according to claim 1 special-purpose X line image testing target that navigates, it is characterized in that following of described light source is the butterfly annulus, ring external diameter Φ 340～Φ 480mm, ring internal diameter Φ 220～Φ 360mm, height 20～40mm, 90 °～120 ° of the angles that two faces of butterfly form, respectively there is the recessed stepped hole of 20 equally distributed installation light emitting diodes on butterfly two surfaces, interfloor distance 8～the 18mm at two-layer stepped hole center, big footpath Φ 4～Φ 12mm of stepped hole.
6, the minimally invasive spine surgical according to claim 1 special-purpose X line image testing target that navigates, it is characterized in that described A target, B target are the garden plate parts, diameter 200～390mm, thickness 4～10mm, 80～130 of tapered blind hole are arranged, taper hole size Φ 3～Φ 10mm, dark 1.5～5mm on the plate face, bevel angle is 90 °～120 °
7, the minimally invasive spine surgical according to claim 6 special-purpose X line image testing target that navigates is characterized in that the rectangular array arrangement of described taper hole, and the ranks spacing is 14～25mm; Respectively put a rustless steel ball in each taper hole, and bond size Φ 2～Φ 5mm of steel ball with plectane.
8, the minimally invasive spine surgical according to claim 1 special-purpose X line image testing target that navigates is characterized in that the described light source seat of honour, following of light source adopt aluminum alloy materials to make, and described A target and B target adopt transparent organic glass and stainless shot to make.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200733064U CN201409927Y (en) | 2009-06-02 | 2009-06-02 | X-ray image calibration target used for minimally invasive spine surgical navigation |
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| CN2009200733064U CN201409927Y (en) | 2009-06-02 | 2009-06-02 | X-ray image calibration target used for minimally invasive spine surgical navigation |
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| CN201409927Y true CN201409927Y (en) | 2010-02-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489181A (en) * | 2013-09-03 | 2014-01-01 | 上海逸动医学科技有限公司 | Perspective X-ray image correcting device and correcting method thereof |
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2009
- 2009-06-02 CN CN2009200733064U patent/CN201409927Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489181A (en) * | 2013-09-03 | 2014-01-01 | 上海逸动医学科技有限公司 | Perspective X-ray image correcting device and correcting method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20140602 |