CN103876805A - Positioning and guiding device for bone drilling - Google Patents
Positioning and guiding device for bone drilling Download PDFInfo
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- CN103876805A CN103876805A CN201210563574.0A CN201210563574A CN103876805A CN 103876805 A CN103876805 A CN 103876805A CN 201210563574 A CN201210563574 A CN 201210563574A CN 103876805 A CN103876805 A CN 103876805A
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- guide plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1728—Guides or aligning means for drills, mills, pins or wires for holes for bone plates or plate screws
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
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Abstract
A positioning and guiding device for bone drilling comprises a base, an outer guide plate and at least one inner guide plate group. The outer wall face of the base projects to form a positioning block, a main guide groove is formed between two end faces of the base penetratingly, and the outer guide plate and the inner guide plate groups are penetratingly arranged in the main guide groove. By the aid of the positioning block of the base, the integral positioning and guiding device can be fastened and positioned on a guide mould, relative positions of the positioning and guiding device and the guiding mould can be fixed relatively, and the outer guide plate and the inner guide plate groups cannot shift randomly, so that cavities with preset positions, inclination angles and directions can be drilled at preset drilling positions reliably by the aid of the positioning and guiding device for bone drilling.
Description
Technical field
The present invention is about the boring positioning guidance device of a kind of skeleton, espespecially a kind ofly can hole or implant the positioning guidance device of body bone in order to auxiliary.
Background technology
In traditional surgical method, doctor is mainly by the X-ray of sufferer skeleton or CT Scan (Computerized Tomography, CT) image, and coordinate the anatomical knowledge of self and clinical operation experience plan the intrusion position of operation and invade path, therefore degree of accuracy, safety and the reliability while operation is extremely dependent on doctor's clinical experience.Therefore,, for the comparatively not enough doctor of experience, often there is the problem that is difficult to grasp operation quality.With surgery (orthopaedics) doctor, position and the angle of implanting nail are quite important, should avoid trauma nerve and blood vessel etc., otherwise can cause the serious sequela such as hemiplegia.
With dentist, in the time that people's tooth has damage or pulled out, general therapeutic modality installing artificial tooth replaces original dermal tooth, and the mode of at present common installing artificial tooth is to adopt fixed artificial to plant tooth.It is the nest hole of first suitably locating to get out suitable size at the dental bed bone at the intraoral dental bed agomphosis of patient place that fixed artificial is planted tooth, then be implanted into an artificial tooth root sew up wound in this nest hole again, until this artificial tooth root after dental bed bone grows together completely, on this artificial tooth root, lock again platform tooth, the finally sheathed artificial artificial tooth on this platform tooth with screw.Borrow this artificial tooth root and a platform tooth with screw can make this artificial artificial tooth be supported by dental bed bone completely, and then make this artificial artificial tooth can bear the gmatjpdumamics of upper and lower row's tooth, reach the object of the meshing functions that recovers tooth.
Wherein, the degree of depth in above-mentioned got out nest hole, angle, position and size can be related to follow-up artificial tooth root to be imbedded the degree of depth of dental bed bone and plants the position on dental bed bone, even has influence on the interlock of the artificial artificial tooth of planting after tooth completes and corresponding tooth; Because the factors such as osteoporosis crumble in the process that is drilled with nest hole, must, first in less nest hole, the first drilling bore hole footpath of dental bed bone, then progressively expand again the aperture in this nest hole for fear of patient's dental bed bone again.
Prior art can be in order to assist the drilling aid that is drilled with nest hole on dental bed bone as No. I285099 " tooth root location drilling auxiliary device for artificial implanted tooth " patent of invention case of Taiwan certificate count, and shown in No. M256496 " implant dental drill hole positioning auxiliary device " new patent case of Taiwan certificate count, it mainly borrows the fairlead of magnetic force with multiple layers of semicircle demihull shape of overlapped way absorption in the outside of the baseline rod of a tool magnetic, the radius of curvature of each fairlead is attached at baseline rod fairlead from being positioned at innermost layer increases progressively gradually to being positioned at outermost fairlead.
Doctor can utilize the drilling aid elder generation of above-mentioned prior art on patient's dental bed model, to simulate angle and the aperture size in the nest hole of agomphosis place need, make accordingly the guiding mould that can be sheathed on agomphosis place on patient's dental bed, this guiding mould is provided with groove for accommodating this drilling aid at corresponding agomphosis place.In the time will holing to patient's dental bed bone, first take off this baseline rod, the angle that arranges of following this fairlead that is positioned at innermost layer with the bar footpath drill point identical with the radius of curvature of fairlead that is positioned at innermost layer is again established nest hole to dental bed bone drill downwards, then divest the fairlead that this is positioned at innermost layer, and change and following this angle that arranges that is positioned at the fairlead of time one deck with the bar footpath drill point identical with the radius of curvature of the fairlead of time one deck and reaming is carried out in established nest hole on this dental bed bone downwards.So sequentially divest fairlead and be used in conjunction with the drill point with different bars footpath, can progressively the borehole enlargement in the nest hole on dental bed bone be arrived to required size.
Only, the drilling aid of above-mentioned prior art is only all to put merely in the groove of guiding mould, on this drilling aid, there is no any can with the fixing design that mutually combines of guiding mould, therefore both easy relative shifts, cause cannot get out in precalculated position there is precalculated position, the nest hole of angle of inclination and direction.Moreover, although can utilize at this datum plate and fairlead and be drilled with fixing hole between the datum plate of this drilling aid and fairlead, run through again the mode of fixing hole with fixture, fix the relative position of this baseline rod and fairlead, but, in the situation that is drilled with nest hole on dental bed bone as above, the size of this baseline rod and fairlead will certainly be similar with tooth, need to design quite exquisitely, further on the baseline rod of size exquisiteness and fairlead, be drilled with fixing hole and run through with fixture if therefore will be again, no matter all can have suitable degree of difficulty on manufacturing or in operation, therefore the drilling aid of prior art still needs further to be improved part.
Summary of the invention
Because the existing problem of aforementioned prior art, the object of the present invention is to provide one can with the guiding mould location that mutually combines, and can be convenient to make and the boring positioning guidance device of skeleton of operation use.
In order to reach above-mentioned goal of the invention, the technological means that the present invention utilizes makes the boring positioning guidance device of a skeleton comprise a pedestal, this pedestal has an outside wall surface, a positioning block, leading groove and an internal face, this locating piece projection takes shape in the outside wall surface of this pedestal, this leading groove longitudinally runs through the both ends of the surface of this pedestal, the internal face of this pedestal is around this leading groove, and it is planar to be concave arc.
The leading groove of said base can obliquely arrange.
The leading groove of said base can further run through the outside wall surface of this pedestal and form a side opening.
Said base can further have two locating slots, this two locating slots interval indent takes shape in the internal face of this pedestal, and be oppositely arranged and extend through the end face of this pedestal, the boring positioning guidance device of above-mentioned skeleton can further have an outer guide plate, this outer guide plate is located at the side opening place of this pedestal, this outer guide plate has the arc striking piece of leading and two side spacers, the arc striking piece of leading of this outer guide plate is located between the side opening of this pedestal, the arc striking piece of leading of this outer guide plate is the curved lamellar body in a cross section, its radius of curvature is identical with the radius of curvature of the internal face of this pedestal, the side spacer of this outer guide plate respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece of this outer guide plate, and wear in two locating slots that are positioned this pedestal.
The boring positioning guidance device of above-mentioned skeleton can further comprise at least one inner guide plate group, this inner guide plate group is arranged in the leading groove of this pedestal, each inner guide plate group comprises one first inner guide plate and one second inner guide plate, this first inner guide plate has the arc striking piece of leading and two side spacers, this the first inner guide plate lead the lamellar body that arc striking piece is cross section semicircular in shape, the side spacer of this first inner guide plate respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece of this first inner guide plate, and wear in two locating slots that are positioned this pedestal, this second inner guide plate and this first inner guide plate are oppositely arranged, and there are the arc striking piece of leading and two side spacers, this the second inner guide plate lead the lamellar body that arc striking piece is cross section semicircular in shape, its radius of curvature is identical with the radius of curvature of leading arc striking piece of the first inner guide plate on the same group, the side spacer of this second inner guide plate respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece of this second inner guide plate, and wear in two locating slots that are positioned this pedestal.
The internal face of said base further indent shaping one hooks groove, leading on arc striking piece of above-mentioned outer guide plate can further be provided with a hook hole, leading on arc striking piece of above-mentioned the first inner guide plate can further be provided with a hook hole, and leading on arc striking piece of above-mentioned the second inner guide plate can further be provided with a hook hole.
The boring positioning guidance device of above-mentioned skeleton can have multiple inner guide plate groups, the first inner guide plate of each inner guide plate group and the second inner guide plate be the stacked setting of side direction respectively, the radius of curvature of leading arc striking piece of each the first inner guide plate and each the second inner guide plate by internal layer to and skin increases progressively, be positioned at the arc striking piece of leading of leading arc striking piece and be posted by this outer guide plate of outermost the first inner guide plate, be positioned at the internal face of leading arc striking piece and be posted by this pedestal of outermost the second inner guide plate.
Said base can further have two guiding protuberances, this two guidings protuberance respectively projection takes shape in the cell wall at this two locating slots place, each guiding protuberance has an outer guide face and an interior guide face, this outer guide face is the oblique extension of direction towards the side opening away from this pedestal by the cell wall at this locating slot place, this interior guide face is the oblique extension of direction towards the side opening near this pedestal by the cell wall at this locating slot place, this outer guide plate, each side spacer of the first inner guide plate and the second inner guide plate has a lateral margin face, this outer guide plate matches with the gradient of the outer guide face of this guiding protuberance with the lateral margin face of the side spacer of the first inner guide plate, and against being positioned this outer guide face, the lateral margin face of the side spacer of this second inner guide plate matches with the gradient of the interior guide face of this guiding protuberance, and against the interior guide face that is positioned this guiding protuberance.
Outer guide face and the interior guide face of the guiding protuberance of said base can be stepped.By design as above, after can be first this outer guide plate and inner guide plate assembling being set on this pedestal, the locating piece that relends this pedestal by overall positioning guidance device snaps into position on a guiding mould, this positioning guidance device can be relative fixing with the relative position of guiding mould, this outer guide plate and inner guide plate group also can not be shifted arbitrarily, even before boring, doctor also can also be interim according to the situation at the predetermined bore position of patient place, whole positioning guidance device can be got out and has preferably diameter with another, the positioning guidance device in the nest hole of angle of inclination and incline direction is replaced, therefore utilize the boring positioning guidance device of skeleton of the present invention positively to get out and to there is precalculated position at predetermined bore position place, the nest hole of angle of inclination and direction.
Accompanying drawing explanation
Fig. 1 is the stereo appearance figure of the present invention's the first preferred embodiment;
Fig. 2 is the three-dimensional exploded view of the present invention's the first preferred embodiment;
Fig. 3 is the three-dimensional exploded view of the guiding mould of the present invention's the first preferred embodiment and a collocation use;
The guiding mould that is equiped with the present invention's the first preferred embodiment is sheathed on the schematic perspective view on a patient tooth by Fig. 4;
The guiding mould that is equiped with the present invention's the first preferred embodiment is sheathed on the schematic top plan view on patient's tooth by Fig. 5;
Fig. 6 is the schematic top plan view that the guiding mould that is equiped with the present invention's the first preferred embodiment is sheathed on to patient's vertebra;
Fig. 7 is the stereo appearance figure of the present invention's the second preferred embodiment;
Fig. 8 is the top view of the present invention's the second preferred embodiment;
Fig. 9 is the stereo appearance figure of the present invention's the 3rd preferred embodiment;
Figure 10 is the stereo appearance figure of the present invention's the 4th preferred embodiment.
Wherein, Reference numeral:
10,10A, 10B, 10C pedestal
101,101B, 101C internal face 102 side openings
11 locating pieces 12, the leading groove of 12B, 12C
13 locating slots 14,14A guide protuberance
141, guide face in the outer guide face 142 of 141A, 142A
15,15B, 15C hook groove 20, the outer guide plate of 20A
21 lead arc striking piece 22,22A side spacer
221,221A lateral margin face 23 hooks hole
30 inner guide plate groups 31,31A the first inner guide plate
311 lead arc striking piece 312,312A side spacer
313,313A lateral margin face 314 hooks hole
32,32A the second inner guide plate 321 is led arc striking piece
322,322A side spacer 323,323A lateral margin face
324 hook holes 40,40' guide mould
41,41' tank 42,42' locating slot
50 patient's 51 vertebras
The specific embodiment
With the following drawings and preferred embodiments of the present invention, further set forth the technological means that the present invention takes for reaching predetermined goal of the invention.
Shown in Fig. 1 and Fig. 2, be the first preferred embodiment of the boring positioning guidance device of skeleton of the present invention, it comprises a pedestal 10, an outer guide plate 20 and at least one inner guide plate group 30.
This pedestal 10 is the roughly block of semicircular in shape of a cross section, and it has an outside wall surface, a positioning block 11, a leading groove 12, an internal face 101, two locating slots 13, two guiding protuberances 14 and a hook groove 15.These locating piece 11 projections take shape in the outside wall surface of this pedestal 10.This leading groove 12 longitudinally runs through the both ends of the surface of this pedestal 10, and further runs through the outside wall surface of this pedestal 10 and form a side opening 102.The internal face 101 of this pedestal 10 is around this leading groove 12, and it is planar to be concave arc.These two locating slots, 13 interval indents take shape in the internal face 101 of this pedestal 10, and are oppositely arranged also along stretching the end face that runs through this pedestal 10.This two guidings protuberance 14 respectively projection takes shape in the cell wall at these two locating slots, 13 places, each guiding protuberance 14 has an outer guide face 141 and an interior guide face 142, this outer guide face 141 is the oblique extension of direction towards the side opening 102 away from this pedestal 10 by the cell wall at these locating slot 13 places, and this interior guide face 142 is the oblique extension of direction towards the side opening 102 near this pedestal 10 by the cell wall at these locating slot 13 places.These hook groove 15 indents take shape in the internal face 101 of this pedestal 10, and longitudinal extension and run through the base of this pedestal 10, and again, this hook groove 15 is located between this two locating slot 13.
This outer guide plate 20 is located at side opening 102 places of this pedestal 10, and this outer guide plate 20 has the arc striking piece of leading 21 and two side spacers 22.102 of the side openings of leading arc striking piece 21 and be located at this pedestal 10 of this outer guide plate 20, the arc striking piece 21 of leading of this outer guide plate 20 is the curved lamellar body in a cross section, its radius of curvature is identical with the radius of curvature of the internal face 101 of this pedestal 10, and again, the arc striking piece 21 of leading of this outer guide plate 20 is provided with a hook hole 23.The side spacer 22 of this outer guide plate 20 respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece 21 of this outer guide plate 20, and wear in two locating slots 13 that are positioned this pedestal 10, each side spacer 22 of this outer guide plate 20 has a lateral margin face 221, the lateral margin face 221 of the side spacer 22 of this outer guide plate 20 matches with the gradient of the outer guide face 141 of this guiding protuberance 14, and against being positioned this outer guide face 141.
This inner guide plate group 30 is arranged in the leading groove 12 of this pedestal 10, and each inner guide plate group 30 comprises one first inner guide plate 31 and one second inner guide plate 32.
This first inner guide plate 31 has the arc striking piece of leading 311 and two side spacers 312, this the first inner guide plate 31 lead the lamellar body that arc striking piece 311 is cross section semicircular in shape, and the arc striking piece 311 of leading of this first inner guide plate 31 is provided with a hook hole 314, the side spacer 312 of this first inner guide plate 31 respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece 311 of this first inner guide plate 31, and wear in two locating slots 13 that are positioned this pedestal 10, each side spacer 312 of this first inner guide plate 31 has a lateral margin face 313, the lateral margin face 313 of the side spacer 312 of this first inner guide plate 31 matches with the gradient of the outer guide face 141 of this guiding protuberance 14, and against being positioned this outer guide face 141.
This second inner guide plate 32 is oppositely arranged with this first inner guide plate 31, and also there are the arc striking piece of leading 321 and two side spacers 322, this the second inner guide plate 31 lead the lamellar body that arc striking piece 321 is cross section semicircular in shape, its radius of curvature is identical with the radius of curvature of leading arc striking piece 311 of the first inner guide plate 31 on the same group, and then around forming a columned space, again, the arc striking piece 321 of leading of this second inner guide plate 32 is provided with a hook hole 324, the side spacer 322 of this second inner guide plate 32 respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece 32 of this second inner guide plate 32, and wear in two locating slots 13 that are positioned this pedestal 10, each side spacer 322 of this second inner guide plate 32 has a lateral margin face 323, the lateral margin face 323 of the side spacer 322 of this second inner guide plate 32 matches with the gradient of the interior guide face 142 of this guiding protuberance 14, and against being positioned this interior guide face 142.
In specific embodiments of the invention, the boring positioning guidance device of this skeleton has multiple inner guide plate groups 30, the stacked setting of side direction respectively of the first inner guide plate 31 of each inner guide plate group 30 and the second inner guide plate 32, and the radius of curvature of leading arc striking piece 311,321 of each the first inner guide plate 31 and each the second inner guide plate 32 by internal layer to and skin increases progressively.Again, be positioned at outermost the first inner guide plate 31 lead that arc striking piece 311 is posted by this outer guide plate 20 lead arc striking piece 21, be positioned at the internal face 101 of leading arc striking piece 321 and be posted by this pedestal 10 of outermost the second inner guide plate 32.
Shown in Fig. 3 and Fig. 6, the boring positioning guidance device of skeleton of the invention described above coordinates a guiding mould 40, 40' uses, doctor can first utilize the mode of computer simulation, build on computers the predetermined boring sites in curing of patient and the model at position around, to design the guiding mould 40 that can be installed in the predetermined boring sites in curing of patient, 40', and coordinate simulation to be scheduled to the angle of inclination in the nest hole of boring, the degree of depth and pore size, to design the size of leading groove 12 of pedestal 10 of this positioning guidance device, the specifications such as angle of inclination, go out this guiding mould 40 with stereolithography machine actual fabrication more afterwards, 40'.Wherein, on this guiding mould 40,40', form a tank 41,41', this tank 41, the corresponding patient of 41' wish drill hole with it, the further indent of cell wall of this tank 41,41' forms a locating slot 42,42', pedestal 10 correspondences of the boring positioning guidance device of this skeleton be arranged at this tank 41,41 ' in, 11 of the locating pieces of this pedestal 10 wear be positioned this locating slot 42,42 ' in, so that this pedestal 10 is fixedly arranged on this guiding mould 40,40'.Wherein, locating piece 11 and this guiding mould 40, the locating slot 42 of 40', the cross section of 42' of this pedestal 10 can be dovetail form, and this locating piece 11 can be cooperatively interacted and snaps into position with locating slot 42,42'; Again, this locating piece 11 and locating slot 42, from top to bottom convergent of 42' width in the horizontal, make to wear while entering in this locating slot 42,42' when this locating piece 11, can progressively form friction tight kenel.
Coordinate referring to shown in Fig. 4 and Fig. 5, take to the dental bed bone drilling at the intraoral dental bed agomphosis of patient 50 place as example, the guiding mould 40 that is equiped with positioning guidance device of the present invention is borrowed on the tooth that is sheathed on both sides, agomphosis place and is located, and positioning guidance device of the present invention correspondence is positioned at this agomphosis place.Doctor can be first less with bar footpath and be positioned at first inner guide plate 31 of inner guide plate group 30 of innermost layer and drill point that the radius of curvature of the second inner guide plate 32 matches be drilled with nest hole on the dental bed bone at this patient's 50 agomphosis place, then take out and be positioned at this inner guide plate group 30 of innermost layer, and till using first inner guide plate 31 of inner guide plate group 30 of bar footpath and inferior one deck and drill point that the radius of curvature of the second inner guide plate 32 matches instead the aperture in this nest hole being progressively extended to required aperture size.Wherein, coordinate hook hole 23,314,324 set on this outer guide plate 20, the first inner guide plate 31 and the second inner guide plate 32, doctor can utilize a bearded needle fastener in the mode in this hook hole 23,314,324, this outer guide plate 20, the first inner guide plate 31 or the second inner guide plate 32 are installed in pedestal 10 or from pedestal 10 and are taken off, also can utilize bearded needle fastener in the mode of the hook groove 15 of this pedestal 10, this pedestal 10 is installed in guiding mould 40 or from guiding mould 40 and is taken off.
Shown in Fig. 6, take wherein holing as example on a vertebra joint of the vertebra 51 patient 50, be coated on this vertebra 51 in order to the guiding mould 40' that installs positioning guidance device of the present invention, the both sides of this guiding mould 40' are respectively equipped with one group of tank 41' and locating slot 42', this two tank 41' to predetermined bore position that should vertebra 51 both sides, allows doctor can utilize the predetermined bore position of positioning guidance device of the present invention on this vertebra 51 to get out the nest hole with pre-sizing respectively whereby.
Shown in Fig. 7 and Fig. 8, for the second preferred embodiment of the boring positioning guidance device of skeleton of the present invention, wherein the outer guide face 141A of the guiding protuberance 14A of this pedestal 10A and interior guide face 142A are stepped, this outer guide plate 20A, the side spacer 22A of the first inner guide plate 31A and the second inner guide plate 32A, 312A, the lateral margin face 221A of 322A, 313A, 323A is resisted against respectively this stair-stepping outer guide face 141A and interior guide face 142A, make the side spacer 312A of this first inner guide plate 31A and the second inner guide plate 32A, 322A is clamping is positioned this guiding protuberance 14A and adjacent the first inner guide plate 31A, between the second inner guide plate 32A or outer guide plate 20A.
Shown in Figure 9, for the 3rd preferred embodiment of the boring positioning guidance device of skeleton of the present invention, wherein on this pedestal 10B, be not formed with aforementioned locating slot and guiding protuberance, and from top to bottom by a left side, right oblique setting is provided with this hook groove 15B around the internal face 101B of this leading groove 12B to the leading groove 12B of this pedestal 10B.
Shown in Figure 10, for the 4th preferred embodiment of the boring positioning guidance device of skeleton of the present invention, wherein on this pedestal 10C, be not also formed with aforementioned locating slot and guiding protuberance, and the leading groove 12C of this pedestal 10C, from top to bottom by rear and front oblique setting, is provided with this hook groove 15C around the internal face 101C of this leading groove 12C.
The boring positioning guidance device of skeleton of the present invention can first be attached to this pedestal 10 by this outer guide plate 20 with inner guide plate group 30, after 10A is upper, relend this pedestal 10, 10A, 10B, the locating piece 11 of 10C by overall positioning guidance device snaps into position in guiding mould 40, on 40', this positioning guidance device and guiding mould 40, the relative position of 40' can be relatively fixing, this outer guide plate 20 also can not be shifted arbitrarily with inner guide plate group 30, even before boring, doctor also can also be interim according to the situation at the predetermined bore position of patient 50 place, whole positioning guidance device can be got out and has preferably diameter with another, the positioning guidance device in the nest hole of angle of inclination and incline direction is replaced, therefore use the boring positioning guidance device of skeleton of the present invention positively to get out and to there is precalculated position at predetermined bore position place, the nest hole of angle of inclination and direction.
Wherein, if positioning guidance device of the present invention is loaded onto this outer guide plate 20,20A and the first inner guide plate 31,31A in use, can in this pedestal 10,10A, 10B, 10C, form a columned space, to locate the moving direction of drill point, avoid drill point skew; In addition, this positioning guidance device also can omit this outer guide plate 20,20A and the first inner guide plate 31,31A in use, to form a semi-cylindrical and the side space as opening in this pedestal 10,10A, 10B, 10C, allow doctor move into this drill point from the side surface direction of this pedestal 10,10A, 10B, 10C, and rule of thumb and actual state finely tune the angle and the direction that pierce.
The above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, in the scope that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (11)
1. the boring positioning guidance device of skeleton, it is characterized in that, comprise a pedestal, this pedestal has an outside wall surface, a positioning block, leading groove and an internal face, this locating piece projection takes shape in the outside wall surface of this pedestal, this leading groove longitudinally runs through the both ends of the surface of this pedestal, and the internal face of this pedestal is around this leading groove, and it is planar to be concave arc.
2. the boring positioning guidance device of skeleton as claimed in claim 1, is characterized in that, the oblique setting of leading groove of this pedestal.
3. the boring positioning guidance device of skeleton as claimed in claim 1 or 2, is characterized in that, the leading groove of this pedestal runs through the outside wall surface of this pedestal and forms a side opening.
4. the boring positioning guidance device of skeleton as claimed in claim 3, is characterized in that, this pedestal further has two locating slots, and this two locating slots interval indent takes shape in the internal face of this pedestal, and is oppositely arranged and extends through the end face of this pedestal; Separately further there is an outer guide plate, this outer guide plate is located at the side opening place of this pedestal, this outer guide plate has the arc striking piece of leading and two side spacers, the arc striking piece of leading of this outer guide plate is located between the side opening of this pedestal, the arc striking piece of leading of this outer guide plate is the curved lamellar body in a cross section, its radius of curvature is identical with the radius of curvature of the internal face of this pedestal, the side spacer of this outer guide plate respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece of this outer guide plate, and wears in two locating slots that are positioned this pedestal.
5. the boring positioning guidance device of skeleton as claimed in claim 4, it is characterized in that, further comprise at least one inner guide plate group, this inner guide plate group is arranged in the leading groove of this pedestal, each inner guide plate group comprises one first inner guide plate and one second inner guide plate, this first inner guide plate has the arc striking piece of leading and two side spacers, this the first inner guide plate lead the lamellar body that arc striking piece is cross section semicircular in shape, the side spacer of this first inner guide plate respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece of this first inner guide plate, and wear in two locating slots that are positioned this pedestal, this second inner guide plate and this first inner guide plate are oppositely arranged, and there are the arc striking piece of leading and two side spacers, this the second inner guide plate lead the lamellar body that arc striking piece is cross section semicircular in shape, its radius of curvature is identical with the radius of curvature of leading arc striking piece of the first inner guide plate on the same group, the side spacer of this second inner guide plate respectively side direction projection takes shape in the two opposite sides Bian Chu that leads arc striking piece of this second inner guide plate, and wear in two locating slots that are positioned this pedestal.
6. the boring positioning guidance device of skeleton as claimed in claim 5, it is characterized in that, the further indent shaping one of internal face of aforementioned pedestal hooks groove, leading of aforementioned outer guide plate is further provided with a hook hole on arc striking piece, leading of aforementioned the first inner guide plate is further provided with a hook hole on arc striking piece, leading of aforementioned the second inner guide plate is further provided with a hook hole on arc striking piece.
7. the boring positioning guidance device of skeleton as claimed in claim 5, it is characterized in that, there are multiple inner guide plate groups, the first inner guide plate of each inner guide plate group and the second inner guide plate be the stacked setting of side direction respectively, the radius of curvature of leading arc striking piece of each the first inner guide plate and each the second inner guide plate increases progressively from the inner to the outer, be positioned at the arc striking piece of leading of leading arc striking piece and be posted by this outer guide plate of outermost the first inner guide plate, be positioned at the internal face of leading arc striking piece and be posted by this pedestal of outermost the second inner guide plate.
8. the boring positioning guidance device of skeleton as claimed in claim 5, it is characterized in that, this pedestal further has two guiding protuberances, this two guidings protuberance respectively projection takes shape in the cell wall at this two locating slots place, each guiding protuberance has an outer guide face and an interior guide face, this outer guide face is the oblique extension of direction towards the side opening away from this pedestal by the cell wall at this locating slot place, and this interior guide face is the oblique extension of direction towards the side opening near this pedestal by the cell wall at this locating slot place; Each side spacer of this outer guide plate, the first inner guide plate and the second inner guide plate has a lateral margin face, this outer guide plate matches with the gradient of the outer guide face of this guiding protuberance with the lateral margin face of the side spacer of the first inner guide plate, and against being positioned this outer guide face, the lateral margin face of the side spacer of this second inner guide plate matches with the gradient of the interior guide face of this guiding protuberance, and against the interior guide face that is positioned this guiding protuberance.
9. the boring positioning guidance device of skeleton as claimed in claim 7, it is characterized in that, this pedestal further has two guiding protuberances, this two guidings protuberance respectively projection takes shape in the cell wall at this two locating slots place, each guiding protuberance has an outer guide face and an interior guide face, this outer guide face is the oblique extension of direction towards the side opening away from this pedestal by the cell wall at this locating slot place, and this interior guide face is the oblique extension of direction towards the side opening near this pedestal by the cell wall at this locating slot place; Each side spacer of this outer guide plate, the first inner guide plate and the second inner guide plate has a lateral margin face, this outer guide plate matches with the gradient of the outer guide face of this guiding protuberance with the lateral margin face of the side spacer of the first inner guide plate, and against being positioned this outer guide face, the lateral margin face of the side spacer of this second inner guide plate matches with the gradient of the interior guide face of this guiding protuberance, and against the interior guide face that is positioned this guiding protuberance.
10. the boring positioning guidance device of skeleton as claimed in claim 8, is characterized in that, outer guide face and the interior guide face of the guiding protuberance of this pedestal are stepped.
The boring positioning guidance device of 11. skeleton as claimed in claim 9, is characterized in that, outer guide face and the interior guide face of the guiding protuberance of this pedestal are stepped.
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| CN201210563574.0A CN103876805B (en) | 2012-12-21 | 2012-12-21 | Drilling into bone positioning guidance device |
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| CN201210563574.0A CN103876805B (en) | 2012-12-21 | 2012-12-21 | Drilling into bone positioning guidance device |
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| CN103876805A true CN103876805A (en) | 2014-06-25 |
| CN103876805B CN103876805B (en) | 2016-03-09 |
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