CN102018560A - Digitization bone fracture plate and manufacturing method thereof - Google Patents
Digitization bone fracture plate and manufacturing method thereof Download PDFInfo
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- CN102018560A CN102018560A CN 201010593637 CN201010593637A CN102018560A CN 102018560 A CN102018560 A CN 102018560A CN 201010593637 CN201010593637 CN 201010593637 CN 201010593637 A CN201010593637 A CN 201010593637A CN 102018560 A CN102018560 A CN 102018560A
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Abstract
The invention discloses a digitization bone fracture plate and a manufacturing method thereof. The bone fracture plate comprises a body, wherein the body comprises a supporting section and connecting sections extended from each end part of the supporting section; screw holes are arranged on the connecting sections; the thickness of the connecting sections is smaller than that of the supporting section; and the top surface of the body transits smoothly from the supporting section to the connecting sections. The manufacturing method comprises: a, data acquisition: acquiring digital imageology materials of bones; b, modeling: setting up a three-dimensional module of the bone fracture plate, thus profile data of the three-dimensional module of the bone fracture plate is obtained; c, command conversion: designing a processing command of a digital control processing device; and d, bone fracture plate molding: preparing the bone fracture plate by utilizing a rapid molding technology according to the processing command by the digital control processing device. The invention has the advantages that because the supporting section attached to the fracture breaking end comprises no screw holes, the supporting section has not damaged structure, can bear force well, and is not easy to bend and crack; because the thickness of the supporting section is reduced, the volume occupied in the body by the bone fracture plate is reduced, and the stimulation to the surrounding muscle and soft tissue is reduced; and the manufacturing method of the bone fracture plate can be used to ensure the smooth manufacturing of the bone fracture plate.
Description
Technical field
The present invention relates to the orthopedic medical device technical field, particularly a kind of digitized blade plate and preparation method thereof.
Background technology
Blade plate is to treat the most frequently used internal fixation apparatus of fracture at present both at home and abroad.Up to now, use the history in existing over one hundred year of plate in treating fracture, its treatment principle is at fracture site place otch, places blade plate, make blade plate across fracture, use screw that blade plate is fixed in the far and near two ends of fracture and makes the skeleton at fracture site place obtain effectively fixing.Therefore, the structure of blade plate includes bar shaped or an arch blade plate body similar to the bone surface shape, offers the screw hole that is used to wear screw on this body.
But, existing blade plate, spaced apartly on its body mostly be provided with a plurality of screw holes, and in the therapeutic process, generally only need hammer into screw at two ends, fracture site place, therefore there is the part screw hole vacant, these vacant screw holes damage the blade plate main body structure, have reduced main body structure intensity, have formed region of stress concentration simultaneously, movablely after surgery comprehensively easily form blade plates bending when stressed at these vacant screw hole locations, even fracture; Especially if the blade plate body is provided with screw hole at the fracture site place or near the fracture site place, because the fracture site place is the easiest concentrated part of stress, then blade plate bending or fracture occurrence probability increase greatly, make the fracture patient wound be difficult for healing, even fracture once more.
For avoiding bending or fracture at screw hole location generation blade plate, existing way generally is by strengthening the structural strength that methods such as screw hole periphery blade plate body thickness improve blade plate.As application number is that 200610069520.3 Chinese patent application document promptly discloses a kind of breakage-proof bone-setting plate, its structure comprises that mainly cross section is arch or flat blade plate body, described blade plate body is provided with the screw hole that passes for bone screw, described blade plate body is provided with along the strip projection of blade plate body edges trend near the side surface of bone, the blade plate body edges of close screw hole, and described strip projection corresponds respectively to screw hole separately.The blade plate of said structure has no doubt strengthened the structural strength of body at screw hole location, but increased the thickness of blade plate at the strip high spot, the increase that causes blade plate to account for the body internal volume causes surrounding tissue and skin tension to increase easily, is unfavorable for wound closure; Steel plate and fracture site are not fitted and also can be caused steel plate to stimulate surrounding tissue and muscle to cause pain, are unfavorable for suffering from the bone activity, influence the recovery of skeletal function.
Summary of the invention
The objective of the invention is to provides a kind of raising intensity at the deficiencies in the prior art, reduces the fracture occurrence probability, and reduces the blade plate of muscle, soft tissue irritation on every side; A kind of preparation method of this blade plate is provided simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of digitized blade plate, it comprises body, described body offers screw hole, described body comprises the supporting section that is arranged at corresponding fracture site, and the linkage section that extends to the far and near both sides of fracture site respectively from each end of described supporting section, described screw hole all is opened in described linkage section, and the thickness of described linkage section is less than described supporting section, described body bottom surface is the cambered surface that is complementary with bone surface, and described body end face seamlessly transits to described linkage section from described supporting section.
The present invention includes following further technical scheme.
Described body is at the width in the zone that the offers screw hole width greater than the zone of not offering screw hole.
Wherein, described screw hole is opened in the position of close described body end in the described linkage section.
Wherein, described screw hole is the taper thread hole.
As realizing another goal of the invention technical scheme of the present invention, a kind of preparation method of digitized blade plate may further comprise the steps: a, data acquisition, and gather the digitized video of skeleton and learn data, and the input computer; B, modeling utilize the skeleton digitized video data of gathering to set up the skeleton threedimensional model, utilize the blade plate threedimensional model of be shaped control software design and described skeleton threedimensional model coupling, obtain the outline data of blade plate threedimensional model; C, instruction transformation according to the processing instruction of the outline data of blade plate threedimensional model design numerically controlled processing equipment, and export described processing instruction to numerically controlled processing equipment; D, blade plate molding, numerically controlled processing equipment instructs according to described processing, the blade plate that utilizes rapid shaping technique preparation and described blade plate threedimensional model to be complementary.
Wherein, among the described step b, " generate blade plate threedimensional model " with described skeleton threedimensional model coupling, be specially, utilize the stress characteristic of finite element technique analyzing bone different parts, obtain the mechanics parameter at each position, design the supporting section and the linkage section form of described blade plate, the quantity and the position of design screw hole according to described mechanics parameter.
Further, after described steps d, also include following steps: e, polish, remove the burr of described blade plate, carry out the surface treatment of blade plate.
Wherein, among the described step e, described surface treatment comprises surface finish processing, inferior optical processing, slightly washes and/or fine purifiation.
Further, further comprising the steps of after the described step e: f, encapsulation, will finish the surface-treated blade plate and carry out the sterilization processing, and encapsulation.
Wherein, described steps d comprises: the preparation of d1, stock, the thick embryo of the described blade plate body of molding, and on described thick embryo prefabricated screw hole, form prefabricated component; D2, plastotype utilize numerically controlled processing equipment that described prefabricated component is carried out rapid shaping and handle, and remove surplus, the blade plate that preparation and described blade plate threedimensional model are complementary.
Beneficial effect of the present invention is: blade plate of the present invention comprises body, described body offers screw hole, described body comprises the supporting section that is arranged at corresponding fracture site, and the linkage section that extends to the far and near both sides of fracture site respectively from each end of described supporting section, described screw hole all is opened in described linkage section, the thickness of described linkage section is less than described supporting section, described body bottom surface is the cambered surface that is complementary with bone surface, and described body end face seamlessly transits to described linkage section from described supporting section; There is not screw hole owing to fit in the described supporting section of fracture site, its structure is not damaged, intensity is guaranteed, movable comprehensive stressed good when stressed behind internal fixation, be difficult for the bending fracture, reduce the generation of sending out complication such as fracture, nonunion again, helped the recovery of patient's limb function; And because the thickness of linkage section is less than described supporting section, blade plate accounts for the body internal volume to be reduced, thereby has reduced muscle, soft tissue irritation on every side; Blade plate preparation method provided by the present invention is learned data with the digitized video of skeleton and is combined with rapid shaping technique, so that prepare above-mentioned blade plate smoothly.
Description of drawings
The invention will be further described to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any limitation of the invention.
Accompanying drawing 1 is the structural representation of digitized blade plate of the present invention.
Accompanying drawing 2 is cross-sectional view of digitized blade plate of the present invention.
Comprise among Fig. 1 and Fig. 2:
1---body
11---supporting section
12---linkage section
2---screw hole.
The specific embodiment
A kind of digitized blade plate, it comprises body 1, described body 1 offers screw hole 2, described body 1 comprises the supporting section 11 that is arranged at corresponding fracture site, and the linkage section 12 that extends to the far and near both sides of fracture site respectively from described supporting section 11 each end, described screw hole 2 all is opened in described linkage section 12, the thickness of described linkage section 12 is less than described supporting section 11, described body 1 bottom surface is the cambered surface that is complementary with bone surface, and described body 1 end face seamlessly transits to described linkage section 12 from described supporting section 11.
Blade plate of the present invention in use, described body 1 is affixed on the fractured bones surface, described supporting section 11 is affixed on the fracture site place, described linkage section 12 is affixed on the bone surface of the far and near end of fracture site respectively, and described linkage section 12 is individually fixed in the skeleton of the far and near end of fracture site by screw, thereby fractured bones is fixed, at utmost recover the planarization of fracture site, fixedly secure, provide the skeleton early ambulant to temper required stability, avoid the generation of the fracture complication that joint immobilization causes, at utmost recover the function in joint.
Owing to fit in the described supporting section 11 no screw holes 2 of fracture site, its structure is not damaged, intensity is guaranteed, movable comprehensive stressed good when stressed behind internal fixation, be difficult for the bending fracture, reduce the generation of sending out complication such as fracture, nonunion again, helped the recovery of patient's limb function; And because the thickness of linkage section 12 is less than described supporting section 11, blade plate accounts for the body internal volume to be reduced, thereby has reduced muscle, soft tissue irritation on every side.
Blade plate of the present invention adopts the method preparation that may further comprise the steps: a, data acquisition, and gather the digitized video of skeleton and learn data, and the input computer; B, modeling utilize the skeleton digitized video data of gathering to set up the skeleton threedimensional model, utilize the blade plate threedimensional model of be shaped control software design and described skeleton threedimensional model coupling, obtain the outline data of blade plate threedimensional model; C, instruction transformation according to the processing instruction of the outline data of blade plate threedimensional model design numerically controlled processing equipment, and export described processing instruction to numerically controlled processing equipment; D, blade plate molding, numerically controlled processing equipment instructs according to described processing, the blade plate that utilizes rapid shaping technique preparation and described blade plate threedimensional model to be complementary.
Wherein, described skeleton digitized video data comprises the data that digitized image system such as thin layer Spiral CT scan data etc. gathers, at present, digital X line image system and digitized eeg collection system have been reached ripe, progressively be applied to clinical at department of cerebral surgery, spinal surgery, oral surgery, Genneral Surgery, mammary gland surgery, thoracic surgery etc., therefore, do not give unnecessary details acquisition principle and the detailed process that the skeleton digitized video is learned data here.
Wherein, described numerically controlled processing equipment can be numerically controlled lathe, numerical control press, or the numerically controlled processing equipment of other type such as laser melting coating rapid forming equipment, these numerically controlled processing equipments are technology maturation carry out the labyrinth parts rapid shaping manufacturing field of digital control processing according to the 3 d part model in, and its machining accuracy and process velocity are enough to satisfy blade plate rapid shaping of the present invention manufacturing.Here also repeat no more the structure and the operation principle of described numerically controlled processing equipment.
Body 1 of the present invention is at the width in the zone that offers screw hole 2 width greater than the zone of not offering screw hole 2.Increase the width that described linkage section 12 offers the zone of screw hole 2, strengthened on the one hand should the zone structural strength, increased the fitting area of linkage section 12 on the other hand with skeleton, improved the connection steadiness.
Wherein, described screw hole 2 is opened in the position of close described body 1 end in the described linkage section 12.
Wherein, described screw hole 2 is the taper thread hole.Strengthen connective stability between screw and the body 1 with this, the phenomenon that screw can not be become flexible, thus accelerate the recovery of knochenbruch
In the preparation method of blade plate of the present invention, " generating blade plate threedimensional model " of described step b with described skeleton threedimensional model coupling, be specially, utilize the stress characteristic of finite element technique analyzing bone different parts, obtain the mechanics parameter at each position, design the supporting section 11 and linkage section 12 forms of described blade plate according to described mechanics parameter, the quantity and the position of design screw hole 2.Wherein, described finite element technique is meant that the method for utilizing mathematical approach simulates actual physical system (how much and load working condition).Also utilize simple and interactional element, i.e. unit just can remove to approach the real system of unlimited unknown quantity with the unknown quantity of limited quantity.Finite element analysis is to use Finite Element Method to analyze static state or dynamic physical objects or physical system.In this method object or system be broken down into by a plurality of that interconnect, simply, the geometric model independently formed.These quantity of independently putting are limited in this method, therefore are called as finite element.By deriving to such an extent that equilibrium equation is used on each point in the actual physical model, produced an equation group thus.This equation group can be found the solution with Linear algebra method.The degree of accuracy of finite element analysis can't infinitely improve.The number of unit arrives the degree of accuracy of separating behind the certain altitude and no longer improves, and has only improve constantly computation time.Finite element analysis can be used to analyze system more complicated, that can't enough accurately analyze with algebraic method in general, the result that it can provide other method of use to provide.Generally use computer to solve the number and the equation group of the flood tide that when analyzing, occurs in practice.Finite element analysis is a kind of means commonly used when pressure in analyzing an object or system and distortion.In this blade plate preparation method, utilize the stress characteristic of finite element technique analyzing bone different parts, the blade plate stress of design and the skeleton stress state at this position are complementary, thereby make blade plate reduce shared volume in the body to greatest extent and guarantee structural strength.
Wherein, after described steps d, also include following steps: e, polish, remove the burr of described blade plate, carry out the surface treatment of blade plate.
Particularly, among the described step e, described surface treatment comprises surface finish processing, inferior optical processing, slightly washes and/or fine purifiation.
Blade plate after polish is handled has further reduced the stimulation of muscle and tissue on every side, and proper surface roughness and surface compact degree are fitted well blade plate and skeleton simultaneously, help bone growth.
Preferably, further comprising the steps of after the described step e: f, encapsulation, will finish the surface-treated blade plate and carry out the sterilization processing, and encapsulation.
As a kind of concrete application of this blade plate preparation method, described steps d can comprise step by step following: the preparation of d1, stock, the described blade plate body 1 thick embryo of molding, and on described thick embryo prefabricated screw hole 2, the formation prefabricated component; D2, plastotype utilize numerically controlled processing equipment that described prefabricated component is carried out rapid shaping and handle, and remove surplus, the blade plate that preparation and described blade plate threedimensional model are complementary.
The prefabricated operation of stock has reduced the processing capacity of numerically controlled processing equipment, has improved working (machining) efficiency, has shortened process time, has further improved the suitability of this preparation method.
Certainly, as adopting quick molding method such as laser melting coating rapid shaping, also can not have the prefabricated operation of above-mentioned stock, this mainly decides according to the numerically controlled processing equipment that adopts and quick molding method, does not influence blade plate of the present invention and prepares effect.
The preparation method of this blade plate combines digitized video data, the generation of skeleton threedimensional model, the design of blade plate threedimensional model of skeleton with labyrinth parts rapid shaping technique, with smooth preparation blade plate of the present invention, make prepared blade plate adapt to the needs of the different parts of different skeletons, skeleton.Experimental data shows, adopt the present invention to prepare a described blade plate, the design of the foundation of skeleton threedimensional model and blade plate threedimensional model needs 5 to 8 hours times spent, the molding of blade plate stock needs 2 to 4 hours, plastotype needs 2 to 4 hours, polish 3 to 6 hours, and packaged sterile is no more than 3 hours, the whole time spent is no more than 30 hours, is applicable to the quick manufacturing of blade plate fully.
The above only is a better embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (10)
1. digitized blade plate, it comprises body, described body offers screw hole, it is characterized in that: described body comprises the supporting section that is arranged at corresponding fracture site, and the linkage section that extends to the far and near both sides of fracture site respectively from each end of described supporting section, described screw hole all is opened in described linkage section, the thickness of described linkage section is less than described supporting section, described body bottom surface is the cambered surface that is complementary with bone surface, and described body end face seamlessly transits to described linkage section from described supporting section.
2. digitized blade plate according to claim 1 is characterized in that: described body is at the width in the zone that the offers screw hole width greater than the zone of not offering screw hole.
3. digitized blade plate according to claim 2 is characterized in that: described screw hole is opened in the position of close described body end in the described linkage section.
4. digitized blade plate according to claim 3 is characterized in that: described screw hole is the taper thread hole.
5. preparation method that is used to process according to any described blade plate of claim 1～4 is characterized in that it may further comprise the steps:
A, data acquisition are gathered the digitized video of skeleton and are learned data, and the input computer;
B, modeling utilize the skeleton digitized video data of gathering to set up the skeleton threedimensional model, utilize the blade plate threedimensional model of be shaped control software design and described skeleton threedimensional model coupling, obtain the outline data of blade plate threedimensional model;
C, instruction transformation according to the processing instruction of the outline data of blade plate threedimensional model design numerically controlled processing equipment, and export described processing instruction to numerically controlled processing equipment;
D, blade plate molding, numerically controlled processing equipment instructs according to described processing, the blade plate that utilizes rapid shaping technique preparation and described blade plate threedimensional model to be complementary.
6. blade plate preparation method according to claim 5, it is characterized in that: among the described step b, " generate blade plate threedimensional model " with described skeleton threedimensional model coupling, be specially, utilize the stress characteristic of finite element technique analyzing bone different parts, obtain the mechanics parameter at each position, design the supporting section and the linkage section form of described blade plate, the quantity and the position of design screw hole according to described mechanics parameter.
7. blade plate preparation method according to claim 6 is characterized in that, also includes following steps after described steps d:
The burr of described blade plate is removed in e, polish, carries out the surface treatment of blade plate.
8. blade plate preparation method according to claim 7 is characterized in that, among the described step e, described surface treatment comprises surface finish processing, inferior optical processing, slightly washes and/or fine purifiation.
9. blade plate preparation method according to claim 8 is characterized in that, and is further comprising the steps of after the described step e: f, encapsulation, and will finish the surface-treated blade plate and carry out the sterilization processing, and encapsulation.
10. blade plate preparation method according to claim 9 is characterized in that, described steps d comprises:
The preparation of d1, stock, the thick embryo of the described blade plate body of molding, and on described thick embryo prefabricated screw hole, form prefabricated component;
D2, plastotype utilize numerically controlled processing equipment that described prefabricated component is carried out rapid shaping and handle, and remove surplus, the blade plate that preparation and described blade plate threedimensional model are complementary.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010593637 CN102018560B (en) | 2010-12-17 | 2010-12-17 | Digitization bone fracture plate and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010593637 CN102018560B (en) | 2010-12-17 | 2010-12-17 | Digitization bone fracture plate and manufacturing method thereof |
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| CN102018560A true CN102018560A (en) | 2011-04-20 |
| CN102018560B CN102018560B (en) | 2013-06-12 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102961176A (en) * | 2012-12-13 | 2013-03-13 | 哈尔滨理工大学 | Method for selecting optimal inner fixing modes for femur and neck bone fractures |
| CN104240298A (en) * | 2014-09-10 | 2014-12-24 | 同济大学 | Three-dimensional finite element constructing method based on medical image data LISS-DF to cure distal femur fracture |
| CN105069181A (en) * | 2015-07-03 | 2015-11-18 | 河海大学常州校区 | Customized far-end dissect type bone plate design method based on patient femur parameter |
| CN105105838A (en) * | 2015-07-27 | 2015-12-02 | 广州中国科学院先进技术研究所 | Personalized maxillofacial surgery guide plate and manufacturing method thereof |
| CN105266878A (en) * | 2014-06-13 | 2016-01-27 | 佘承鑫 | Bone fixing plate |
| CN105455887A (en) * | 2014-09-10 | 2016-04-06 | 西藏德康医疗器械有限公司 | Manufacturing method for customized bone lamella |
| CN105686875A (en) * | 2016-03-19 | 2016-06-22 | 傅山泓 | Personalized bone plate and manufacturing method thereof |
| CN105832397A (en) * | 2016-04-27 | 2016-08-10 | 广州雄俊智能科技有限公司 | Personalized bone fracture plate and manufacturing method thereof |
| CN105919664A (en) * | 2016-06-14 | 2016-09-07 | 广州雄俊智能科技有限公司 | Personalized bone plate and manufacturing method thereof |
| CN105943148A (en) * | 2016-06-01 | 2016-09-21 | 广州雄俊智能科技有限公司 | Personalized bone fracture plate and manufacturing method thereof |
| CN105943150A (en) * | 2016-06-06 | 2016-09-21 | 广州雄俊智能科技有限公司 | Personalized bone fracture plate and manufacturing method thereof |
| CN106108999A (en) * | 2016-06-12 | 2016-11-16 | 谭海涛 | A kind of personalized blade plate and manufacture method thereof |
| CN106202619A (en) * | 2016-06-27 | 2016-12-07 | 河海大学常州校区 | Blade plate optimization method towards personalized designs |
| CN106643391A (en) * | 2016-12-23 | 2017-05-10 | 上海华碧检测技术有限公司 | Bone nail and bone plate breaking reason analysis method |
| CN104933263B (en) * | 2015-07-03 | 2018-02-16 | 河海大学常州校区 | A kind of bone plate Design Methods for Series based on average femur model |
| CN109350212A (en) * | 2018-11-05 | 2019-02-19 | 深圳舒博尔宠物医学科技有限公司 | Fixed folded plate of orthopaedics and preparation method thereof |
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| CN102961176B (en) * | 2012-12-13 | 2016-12-07 | 哈尔滨理工大学 | The method for optimizing of Different Internal Fixations for Femoral Neck Fractures |
| CN102961176A (en) * | 2012-12-13 | 2013-03-13 | 哈尔滨理工大学 | Method for selecting optimal inner fixing modes for femur and neck bone fractures |
| CN105266878A (en) * | 2014-06-13 | 2016-01-27 | 佘承鑫 | Bone fixing plate |
| TWI584776B (en) * | 2014-06-13 | 2017-06-01 | Cheng-Xin She | A fixed bone plate |
| CN105455887A (en) * | 2014-09-10 | 2016-04-06 | 西藏德康医疗器械有限公司 | Manufacturing method for customized bone lamella |
| CN104240298A (en) * | 2014-09-10 | 2014-12-24 | 同济大学 | Three-dimensional finite element constructing method based on medical image data LISS-DF to cure distal femur fracture |
| CN105069181A (en) * | 2015-07-03 | 2015-11-18 | 河海大学常州校区 | Customized far-end dissect type bone plate design method based on patient femur parameter |
| CN105069181B (en) * | 2015-07-03 | 2018-08-03 | 河海大学常州校区 | Personalized distal end dissection type bone fracture plate design method based on patient femur's parameter |
| CN104933263B (en) * | 2015-07-03 | 2018-02-16 | 河海大学常州校区 | A kind of bone plate Design Methods for Series based on average femur model |
| CN105105838A (en) * | 2015-07-27 | 2015-12-02 | 广州中国科学院先进技术研究所 | Personalized maxillofacial surgery guide plate and manufacturing method thereof |
| CN105686875A (en) * | 2016-03-19 | 2016-06-22 | 傅山泓 | Personalized bone plate and manufacturing method thereof |
| CN105832397A (en) * | 2016-04-27 | 2016-08-10 | 广州雄俊智能科技有限公司 | Personalized bone fracture plate and manufacturing method thereof |
| CN105943148A (en) * | 2016-06-01 | 2016-09-21 | 广州雄俊智能科技有限公司 | Personalized bone fracture plate and manufacturing method thereof |
| CN105943150A (en) * | 2016-06-06 | 2016-09-21 | 广州雄俊智能科技有限公司 | Personalized bone fracture plate and manufacturing method thereof |
| CN106108999A (en) * | 2016-06-12 | 2016-11-16 | 谭海涛 | A kind of personalized blade plate and manufacture method thereof |
| CN105919664A (en) * | 2016-06-14 | 2016-09-07 | 广州雄俊智能科技有限公司 | Personalized bone plate and manufacturing method thereof |
| CN106202619A (en) * | 2016-06-27 | 2016-12-07 | 河海大学常州校区 | Blade plate optimization method towards personalized designs |
| CN106643391A (en) * | 2016-12-23 | 2017-05-10 | 上海华碧检测技术有限公司 | Bone nail and bone plate breaking reason analysis method |
| CN106643391B (en) * | 2016-12-23 | 2018-12-07 | 上海华碧检测技术有限公司 | A kind of analysis method of bone nail bone plate fracture cause |
| CN109350212A (en) * | 2018-11-05 | 2019-02-19 | 深圳舒博尔宠物医学科技有限公司 | Fixed folded plate of orthopaedics and preparation method thereof |
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