CN102488543B - Three-dimensional coordinate-positioning drilling guiding system - Google Patents
Three-dimensional coordinate-positioning drilling guiding system Download PDFInfo
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- CN102488543B CN102488543B CN2011103736051A CN201110373605A CN102488543B CN 102488543 B CN102488543 B CN 102488543B CN 2011103736051 A CN2011103736051 A CN 2011103736051A CN 201110373605 A CN201110373605 A CN 201110373605A CN 102488543 B CN102488543 B CN 102488543B
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Abstract
The invention discloses a three-dimensional coordinate-positioning drilling guiding system. The guiding system comprises an x1 axis vernier caliper and an x2 axis vernier caliper arranged along an axis x, an axis z vernier caliper arranged along an axis z, an axis y vernier caliper arranged along an axis y, positioning needle fixers arranged on the x1 axis and the x2 axis, and a guide needle fixer on the axis Y, wherein the x2 axis vernier caliper and the x1 axis vernier caliper are parallel to each other. After fracture reposition, a body surface positioner is mounted on bones, projections of a target point and a reference point on the body surface are positioned by X-ray; the positioning needles are inserted in vertically to respectively confirm the coordinates of the target point and the reference point on the three-dimensional positioning rack x1 axis, x2 axis, and axis y relative to positioning needle points; the verniers on each axis can be regulated and fixed based on the coordinates; and drill bits and Kirschner wires are drilled in from the guide needle fixer. The guiding system has the advantages that application range is wide, drilling is accurate, and the drill bit or the Kirschner wire can be in optional size below 6mm.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, relate in particular to the Three-dimensional coordinate-positioning drilling guiding system that uses in a kind of bone surgery.
Background technology
In the clinical position of orthopaedics, often need the fracture that resets is carried out accurately firmly fixing to it with screw, intramedullary needle or Kirschner wire etc., to satisfy " Wicresoft " treatment theory as far as possible, and all localizer, sight, guider all do not adopt the method for three-dimensional coordinate accurately now, can not reach accurate purpose, and the operation guiding system complex structure is expensive, learning curve is long, and accuracy also awaits improving.
Summary of the invention
For in the related surgical process when boring position inaccurate and cause vital tissue damage or interior fixed position inaccuracy to cause fixing unstable, failure, increase the corrective surgery risk; The position is accurate when the invention provides a kind of boring, can avoid the vital tissue damage, reduces the Three-dimensional coordinate-positioning drilling guiding system of operation risk.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme: according to 2 definite straight lines, the position of point in same three-dimensional coordinate in the space is that unique principle is made.Three-dimensional coordinate-positioning drilling guiding system comprises the x1 axle slide gauge arranged along the x axle, the z axle slide gauge of arranging along the z axle, the x2 axle slide gauge of arranging in the x-direction, along y axle slide gauge, x1 axle positioning needle holder, x2 axle positioning needle holder and guide pin holder that the y axle is arranged, described x2 axle slide gauge is parallel with x1 axle slide gauge;
Described x1 axle slide gauge comprises main scale I and vernier I, described vernier I is enclosed within on the main scale I and with the main scale I and is slidingly matched, described main scale I is provided with x1 axle positioning needle holder, x1 axle positioning needle is passed x1 axle positioning needle holder in the y-direction, is provided with x1 axle positioning needle locking member at x1 axle positioning needle holder;
Described z axle slide gauge comprises main scale II, locator card, vernier II and vernier III; Described locator card is fixed on the end of main scale II and fixes with the vernier I, and vernier II and vernier III are enclosed within on the main scale II and with the main scale II and are slidingly matched, and the vernier II is between locator card and vernier III;
Described x2 axle slide gauge comprises main scale III and vernier IV; Described vernier IV is enclosed within on the main scale III and with the main scale III and is slidingly matched, and described vernier IV is fixed on the vernier II; Described main scale III is provided with x2 axle positioning needle holder, and x2 axle positioning needle is passed x2 axle positioning needle holder in the y-direction, is provided with x2 axle positioning needle locking member at x2 axle positioning needle holder;
Described y axle slide gauge comprises main scale IV and vernier V; Described vernier V is enclosed within on the main scale IV and with the main scale IV and is slidingly matched, and described vernier V is fixed on the vernier III, and the bottom of described main scale IV is provided with the guide pin holder, and guide pin passes the guide pin holder in the z-direction.
As a preferred embodiment of the present invention, described guide pin holder comprises fairlead and V-shaped groove, described fairlead is enclosed within the bottom of main scale IV and is slidingly matched with the main scale IV, described V-shaped groove fixedly is located at the bottom of fairlead, and V-shaped groove is stretched in the bottom of main scale IV, is provided with the fairlead locking member that fairlead is locked on the main scale IV at fairlead.
As another kind of preferred version of the present invention, be provided with the vernier locking member on described vernier I, vernier II, vernier III, vernier IV and the vernier V.
As another preferred version of the present invention, the cross section of described x1 axle positioning needle holder and x2 axle positioning needle holder is triangle.
As another preferred version of the present invention, described x1 axle positioning needle locking member, x2 axle positioning needle locking member, fairlead locking member and vernier locking member are screw.
As a kind of improvement project of the present invention, also comprise body surface locator, described body surface locator comprises fixedly needle guard, connecting rod I, doublejointed holder, connecting rod II and waffle slab; Described locking pin puts and is provided with fixedly pin hole, one end of described connecting rod I passes fixedly needle guard, put the lock-screw I that is respectively equipped with fixed connecting rod I and locking pin at locking pin, the other end of described connecting rod I is connected with a movable joint in the doublejointed holder, one end of described connecting rod II is connected with another movable joint in the doublejointed holder, and the other end of connecting rod II is fixedly connected with waffle slab.
Scheme as a further improvement on the present invention, described doublejointed holder comprises left clamping plate, right clamping plate, lock-screw II and two balls, two balls are sandwiched between left clamping plate and the right clamping plate, and the lock-screw II is from screwing between two balls in left clamping plate and the right clamping plate; A ball in two balls is as a movable joint of doublejointed holder, and another ball is as another movable joint of doublejointed holder.
The invention has the beneficial effects as follows: but 1 accurate three-dimensional coordinate setting impact point and reference point; 2, body surface locator accurate positioning; 3, by this Three-dimensional coordinate-positioning drilling guiding system boring accurately; 4, the drill bit or the Kirschner wire that use in x1 axle positioning needle holder, x2 axle positioning needle holder and guide pin holder all can at the following arbitrary size of 6mm; 5, implantable many guide pins (parallel or intersection) after the one-time positioning; 6, the pelvis extremity are general, especially epiphysis; 7, the location of the body surface locator in this guidance system can reduce the irradiation of patient's X-ray to greatest extent, and the doctor can avoid the X-ray irradiation, only needs one to two film,fault or perspective in the operation; 8, use this Three-dimensional coordinate-positioning drilling guiding system will welcome the arrival of Wicresoft's orthopaedics, and can extensively promote at basic hospital.
Description of drawings
Fig. 1 is the structural representation of Three-dimensional coordinate-positioning drilling guiding system;
Fig. 2 is the structural representation of guide pin holder;
Fig. 3 is the structural representation of body surface locator;
Fig. 4 is sketch map fixing in the fracture of femoral neck;
Fig. 5 is the sketch map that femoral interlocking nail enters the pin mark location;
Fig. 6 is sketch map fixing in the supracondylar fracture of the humerus Cross K-wire.
In the accompanying drawing: 1-x1 axle slide gauge; 11-main scale I; 12-vernier I; 13-x1 axle positioning needle holder; 14-x1 axle positioning needle locking member; 2-z axle slide gauge; 21-main scale II; 22-locator card; 23-vernier II; 24-vernier III; 3-x2 axle slide gauge; 31-main scale III; 32-vernier IV; 33-x2 axle positioning needle holder; 34-x2 axle positioning needle locking member; 4-y axle slide gauge; 41-main scale IV; 42-vernier V; 43-guide pin holder; 431-fairlead; 432-V-shaped groove; 433-fairlead locking member; 5-x1 axle positioning needle; 6-x2 axle positioning needle; 7-guide pin; 8-vernier locking member; 9-body surface locator; 91-fixedly needle guards; 92-locking pin; 93-connecting rod I; 94-doublejointed holder; 95-connecting rod II; 96-waffle slab; 97-lock-screw I; 941-left clamping plate; 942-right clamping plate; 943-lock-screw II; 944-ball.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
As depicted in figs. 1 and 2, Three-dimensional coordinate-positioning drilling guiding system, the z axle slide gauge 2 that comprises the x1 axle slide gauge 1 arranged along the x axle, arranges along the z axle, the x2 axle slide gauge 3 of arranging in the x-direction, y axle slide gauge 4, x1 axle positioning needle holder, x2 axle positioning needle holder and the guide pin holder arranged along the y axle.X2 axle slide gauge 2 is parallel with x1 axle slide gauge 1.
Wherein, x1 axle slide gauge 1 comprises main scale I 11, vernier I 12 and vernier locking member 8, vernier I 12 is enclosed within on the main scale I 11 and with main scale I 11 and is slidingly matched, screwing vernier locking member 8 can be fixed on vernier I 12 on the main scale I 11, unscrew vernier locking member 8, vernier I 12 just can be slided in main scale I 11.Main scale I 11 is provided with in the x1 axle positioning needle holder 13(present embodiment, on main scale I 11 and perpendicular to main scale I 11, fixed support is set, x1 axle positioning needle holder 13 is installed on the fixed support), x1 axle positioning needle 5 is passed x1 axle positioning needle holder 13 in the y-direction, be provided with x1 axle positioning needle locking member 14 at x1 axle positioning needle holder 13, screwing x1 axle positioning needle locking member 14 can be fixed on x1 axle positioning needle 5 on the x1 axle positioning needle holder 13, unscrew x1 axle positioning needle locking member 14, x1 axle positioning needle 5 just can be slided at x1 axle positioning needle holder 13.
Z axle slide gauge 2 comprises main scale II 21, locator card 22, vernier II 23, vernier III 24 and vernier locking member 8.Locator card 22 is fixed on the end of main scale II 21 and fixes with vernier I 12, and vernier II 23 and vernier III 24 are enclosed within on the main scale II 21 and with main scale II 21 and are slidingly matched, and vernier II 23 is between locator card 22 and vernier III 24.The vernier locking member 8 that screws on the vernier II 23 can be fixed on vernier II 23 on the main scale II 21, unscrews the vernier locking member 8 on the vernier II 23, and vernier II 23 just can be slided in main scale II 21; The vernier locking member 8 that screws on the vernier III 24 can be fixed on vernier III 24 on the main scale II 21, unscrews the vernier locking member 8 on the vernier III 24, and vernier III 24 just can be slided in main scale II 21.
X2 axle slide gauge 3 comprises main scale III 31, vernier IV 32 and vernier locking member 8.Vernier IV 32 is enclosed within on the main scale III 31 and with main scale III 31 and is slidingly matched, and vernier IV 32 is fixed on the vernier II 23, and the vernier locking member 8 that screws on the vernier IV 32 can be fixed on vernier IV 32 on the main scale III 31; Unscrew the vernier locking member 8 on the vernier IV 32, vernier IV 32 just can be slided in main scale III 31.Main scale III 31 is provided with in the x2 axle positioning needle holder 33(present embodiment, on main scale III 31 and perpendicular to main scale III 31, fixed support is set, x2 axle positioning needle holder 33 is installed on the fixed support), x2 axle positioning needle 6 is passed in the y-direction x2 axle positioning needle holder 33 and is slidingly matched with x2 axle positioning needle holder 33, is provided with x2 axle positioning needle locking member 34 at x2 axle positioning needle holder 33.Screwing x2 axle positioning needle locking member 34 can be fixed on x2 axle positioning needle 6 on the x2 axle positioning needle holder 33; Unscrew x2 axle positioning needle locking member 34, x2 axle positioning needle 6 just can be slided at x2 axle positioning needle holder 33.
Y axle slide gauge 4 comprises main scale IV 41, vernier V 42 and vernier locking member 8.Vernier V 42 is enclosed within on the main scale IV 41 and with main scale IV 41 and is slidingly matched, and vernier V 42 is fixed on the vernier III 24.The vernier locking member 8 that screws on the vernier V 42 can be fixed on vernier V 42 on the main scale IV 41; Unscrew the vernier locking member 8 on the vernier V 42, vernier V 42 just can be slided in main scale IV 41.The bottom of main scale IV 41 is provided with guide pin holder 43, and guide pin 7 passes guide pin holder 43 in the z-direction.
The cross section of x1 axle positioning needle holder 13 and x2 axle positioning needle holder 33 is triangle.X1 axle positioning needle locking member 14, x2 axle positioning needle locking member 34, fairlead locking member 433 and vernier locking member 8 are screw.
In the present embodiment, this Three-dimensional coordinate-positioning drilling guiding system also comprises body surface locator 9, as shown in Figure 3.Body surface locator comprises fixedly needle guard 91, connecting rod I 93, doublejointed holder 94, connecting rod II 95 and waffle slab 96.Fixedly needle guard 91 is provided with fixedly pin hole 92, one end of connecting rod I 93 passes fixedly needle guard 91, be respectively equipped with the lock-screw I 97 of fixed connecting rod I 93 and locking pin at fixing needle guard 91, the other end of connecting rod I 93 is connected with a movable joint in the doublejointed holder 94, one end of connecting rod II 95 is connected with another movable joint in the doublejointed holder 94, and the other end of connecting rod II 95 is fixedly connected with waffle slab 96.
After the reduction of the fracture, body surface locator (Fig. 3) is installed on skeleton, adjusting make waffle slab 96 levels or with the bone level, take the photograph sheet or perspective perpendicular to waffle slab, the projection on body surface of localizing objects point and reference point, the vertical positioning needle of inserting according to image, is determined respectively impact point and the coordinate of reference point relative localization guide pin point on x1 axle slide gauge 1, x2 axle slide gauge 3 and y axle slide gauge 4 respectively; To locate respectively guide pin is fixed in x1 axle positioning needle holder 13, the x2 axle positioning needle holder 33, regulate respectively vernier and fixing according to coordinate, the coordinate of impact point on z axle slide gauge 2 is exactly drilling depth, after checking this three-dimensional localization frame level, in guide pin holder 43, pierce drill bit or Kirschner wire.In the motionless situation of positioning needle, different according to the different target point coordinates, regulating vernier can be parallel or intersect repeatedly boring.
The below specifies according to the fracture of different parts:
Embodiment 1:Fracture of femoral neck is with reference to figure 4.
After the reduction of the fracture, body surface locator is fixed on the ilium, waffle slab places hip joint the place ahead, regulates and makes its level, takes the photograph sheet or perspective perpendicular to waffle slab.
Draw the position of first guide pin according to image such as figure, setting A is the central point of femoral head image, D is impact point, it is C point (reference point) that guide pin and femur major axis centrage intersect, and AB is that the A point is to the vertical line of CD, from the vertical fine needle that inserts of A point body surface projection point, measurement A point is made as h to the distance of body surface projection point, capital radius is made as r, and the coordinate of D point on x1 axle slide gauge is AB so, and the coordinate on y axle slide gauge is r+h+ positioning needle length L.
From the vertical through femur of thick Kirschner wire that inserts of body surface projection point that C is ordered, the coordinate of C point on the X2 axle is 0, and the coordinate on y axle slide gauge is femur side position radius+h+L.Note subduction image zoom coefficient.
Positioning needle is individually fixed in x1 axle positioning needle holder, the x2 axle positioning needle holder, regulate vernier, the object location pin is positioned over the body surface projection point, be implanted into guide pin and fixing from acuductor, inward turning is suffered from limb, makes three-dimensional localization frame level, the coordinate of D point on z axle slide gauge is drilling depth, pierce guide pin, different according to the different target point coordinates, regulate respectively the implantable many parallel guide pins of vernier.
Embodiment 2:Femoral interlocking nail enters the pin mark location, with reference to figure 5.
Body surface locator is fixed near end of thighbone the place ahead, regulates and make the waffle slab level, take the photograph sheet or perspective perpendicular to waffle slab.
Such as Fig. 5, make femur major axis centrage, select AB 2 points, body surface projection point from 2 of AB vertically inserts positioning needle respectively, until femoral surface, the coordinate of A point kernel of section point on x1 axle slide gauge is 0, and the coordinate on y axle slide gauge is that A point place femur side position radius adds the positioning needle length L, in like manner determines B point kernel of section point coordinates.Respectively positioning needle is fixed, regulate vernier and fixing according to coordinate, receive in the hip joint flexing, in the guide pin holder, pierce guide pin.
Embodiment 3:Supracondylar fracture of the humerus is with reference to figure 6.
After resetting, body surface locator is fixed in elbow joint rear, humerus lower end, takes the photograph sheet or perspective.
Select target is put in the fracture near-end, and such as figure A point, establishing A point place thickness is that the h(lateral projection can be measured), the coordinate of Cross K-wire on x1 axle slide gauge is 0, the coordinate on y axle slide gauge is respectively that 1/3h adds positioning needle length and 2/3h adds positioning needle length.From the vertical positioning needle of inserting of A point body surface projection point, regulate according to coordinate, pierce Kirschner wire from ectocondyle, interior condyle respectively.
Embodiment 4: sacroiliac screw is fixed
The patient gets the ventricumbent position, body surface locator is fixed in posterior surface of scral bone, vertically take the photograph sheet, implant positioning needle at Ipsilateral and strong side superior articular process substrate outside vertical, reset and determine respectively coordinate on x1 axle slide gauge, x2 axle slide gauge and y axle slide gauge according to the CT sheet afterwards, behind the stationary positioned pin, must keep the locating rack level.Drilling depth is the coordinate of impact point on z axle slide gauge.
In addition, clavicular fracture intramedullary needle after this Three-dimensional coordinate-positioning drilling guiding system also can be used for resetting is fixed, the fracture of the surgical neek of the humerus cross screws is fixed, the humerus intramedullary needle is fixed, chi radius intramedullary needle is fixed, Ke Shi fracture Cross K-wire is fixed, the palm, fixing in the phalanges Cross K-wire, add with the three-dimensional viewpoin guider and be used for the pedicle screw implantation, fracture of ilium, the screw placement of Anterior and posterior ring of pelvics spinous process of the seventh cervical vertebra folding, Kirschner wire was implanted during patella fracture tension band was fixing, the tibial plateau screw placement, the ankle joint fracture screw placement is fixing etc., also can be used for the accurate implantation of various fine steel needles.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. Three-dimensional coordinate-positioning drilling guiding system, it is characterized in that: the z axle slide gauge (2) that comprises the x1 axle slide gauge (1) arranged along the x axle, arranges along the z axle, the x2 axle slide gauge (3) of arranging in the x-direction, along y axle slide gauge (4), x1 axle positioning needle holder (13), x2 axle positioning needle holder (33) and guide pin holder (43) that the y axle is arranged, described x2 axle slide gauge (2) is parallel with x1 axle slide gauge (1);
Described x1 axle slide gauge (1) comprises main scale I (11) and vernier I (12), described vernier I (12) is enclosed within main scale I (11) and upward and with main scale I (11) is slidingly matched, described main scale I (11) is provided with x1 axle positioning needle holder (13), x1 axle positioning needle (5) is passed x1 axle positioning needle holder (13) in the y-direction, is provided with x1 axle positioning needle locking member (14) at x1 axle positioning needle holder (13);
Described z axle slide gauge (2) comprises main scale II (21), locator card (22), vernier II (23) and vernier III (24); Described locator card (22) is fixed on end and fix vertical with vernier I (12) of main scale II (21), vernier II (23) and vernier III (24) are enclosed within main scale II (21) and upward and with main scale II (21) are slidingly matched, and vernier II (23) is positioned between locator card (22) and the vernier III (24);
Described x2 axle slide gauge (3) comprises main scale III (31) and vernier IV (32); Described vernier IV (32) is enclosed within main scale III (31) and upward and with main scale III (31) is slidingly matched, and described vernier IV (32) is fixed on the vernier II (23); Described main scale III (31) is provided with x2 axle positioning needle holder (33), and x2 axle positioning needle (6) is passed x2 axle positioning needle holder (33) in the y-direction, is provided with x2 axle positioning needle locking member (34) at x2 axle positioning needle holder (33);
Described y axle slide gauge (4) comprises main scale IV (41) and vernier V (42); Described vernier V (42) is enclosed within main scale IV (41) and upward and with main scale IV (41) is slidingly matched, described vernier V (42) is fixed on the vernier III (24), the bottom of described main scale IV (41) is provided with guide pin holder (43), and guide pin (7) passes guide pin holder (43) in the z-direction.
2. Three-dimensional coordinate-positioning drilling guiding system according to claim 1, it is characterized in that: described guide pin holder (43) comprises fairlead (431) and V-shaped groove (432), described fairlead (431) is enclosed within the bottom of main scale IV (41) and is slidingly matched with main scale IV (41), described V-shaped groove (432) fixedly is located at the bottom of fairlead (431), and V-shaped groove (432) is stretched in the bottom of main scale IV (41), is provided with at fairlead (431) fairlead (431) is locked at fairlead locking member (433) on the main scale IV (41).
3. Three-dimensional coordinate-positioning drilling guiding system according to claim 2 is characterized in that: be provided with vernier locking member (8) on described vernier I (12), vernier II (23), vernier III (24), vernier IV (32) and the vernier V (42).
4. Three-dimensional coordinate-positioning drilling guiding system according to claim 3, it is characterized in that: the cross section of described x1 axle positioning needle holder (13) and x2 axle positioning needle holder (33) is triangle.
5. Three-dimensional coordinate-positioning drilling guiding system according to claim 4, it is characterized in that: described x1 axle positioning needle locking member (14), x2 axle positioning needle locking member (34), fairlead locking member (433) and vernier locking member (8) are screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103736051A CN102488543B (en) | 2011-11-22 | 2011-11-22 | Three-dimensional coordinate-positioning drilling guiding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103736051A CN102488543B (en) | 2011-11-22 | 2011-11-22 | Three-dimensional coordinate-positioning drilling guiding system |
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| CN102488543A CN102488543A (en) | 2012-06-13 |
| CN102488543B true CN102488543B (en) | 2013-04-03 |
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| CN2011103736051A Expired - Fee Related CN102488543B (en) | 2011-11-22 | 2011-11-22 | Three-dimensional coordinate-positioning drilling guiding system |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102793574B (en) * | 2012-06-24 | 2015-03-25 | 孟凡刚 | Bone groove forming limiting device |
| CN104209548B (en) * | 2013-05-31 | 2017-05-17 | 浙江欣兴工具有限公司 | Drilling machine provided with mechanical positioning device |
| CN105852967A (en) * | 2016-04-21 | 2016-08-17 | 南京鼓楼医院 | Percutaneous puncture thoracolumbar and surrounding tissue organ 3D-printing navigator and navigation method thereof |
| CN107260330B (en) * | 2017-07-11 | 2019-07-12 | 荆门市第二人民医院 | A kind of orthopaedics positional punch device |
| CN107411811A (en) * | 2017-07-12 | 2017-12-01 | 中南大学湘雅医院 | A kind of sacral puts nail multifunctional guide device |
| WO2019090709A1 (en) * | 2017-11-10 | 2019-05-16 | 唐佩福 | Locking device for bone fixation pin |
| WO2019090707A1 (en) * | 2017-11-10 | 2019-05-16 | 唐佩福 | Locking device for bone fixation pin |
| CN108403219A (en) * | 2018-02-28 | 2018-08-17 | 河北医科大学第三医院 | Orthopaedics non-invasive guide pin three-dimensional localization guidance method and guidance system |
| CN108420523B (en) * | 2018-04-20 | 2023-09-08 | 杭州三坛医疗科技有限公司 | Femoral neck fracture hollow screw guiding device |
| CN109091222B (en) * | 2018-09-20 | 2020-05-15 | 陈涛 | Coplanar fixed type hand Kirschner wire fixing device |
| CN109498106B (en) * | 2018-12-26 | 2021-11-19 | 哈尔滨工程大学 | Intramedullary nail hole positioning and navigation method based on three-dimensional image |
| CN109875673B (en) * | 2019-03-28 | 2020-08-18 | 山东大学齐鲁医院(青岛) | Lower tibiofibular combined reduction and screw implantation guiding device |
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| CN202313574U (en) * | 2011-11-22 | 2012-07-11 | 王光明 | Dimensional coordinate location drilling guide apparatus |
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| CN2496403Y (en) * | 2001-08-14 | 2002-06-26 | 齐涛 | Adjustable, multi-purpose purcture and drill directional locator |
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| CN102488543A (en) | 2012-06-13 |
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