CN105943141A - Medical macromolecular extraosseous fixing device - Google Patents
Medical macromolecular extraosseous fixing device Download PDFInfo
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- CN105943141A CN105943141A CN201610401317.5A CN201610401317A CN105943141A CN 105943141 A CN105943141 A CN 105943141A CN 201610401317 A CN201610401317 A CN 201610401317A CN 105943141 A CN105943141 A CN 105943141A
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention relates to a medical macromolecular extraosseous fixing device which comprises rod-rod clamps (100), needle-rod clamps (200), cross rod clamps (300), a strut (400), a 30-degree or 90-degree bent column (500), a bent semi-ring rod (600) and a straight rod (700). The medical macromolecular extraosseous fixing device is characterized in that the rod-rod clamps (100), the needle-rod clamps (200), the cross rod clamps (300), the strut (400) and the 30-degree or 90-degree bent column (500) are made of a macromolecular material and are internally provided with metal insert parts, therefore, the overall weight of the medical macromolecular extraosseous fixing device is reduced, the burden of patients is relieved, and the strength of the series of products is guaranteed.
Description
Technical field
The present invention relates to medical instruments field, refer more particularly to a kind of medical high polymer bone external fixation device.
Background technology
Bone external fixation device is in Minimally Invasive Surgery or open operation, each parts great majority of existing bone external fixation device use metal material to make, and although metal parts intensity is bigger, but owing to the density of metal material is big, thus the bone external fixation device overall weight of metal parts composition is relatively big, cause the burden on health to the sufferer in operation；Simultaneously because X-ray cannot completely penetrate through metal material, thus the bone external fixation device light-permeable area that metal is made is less, when metal parts just shelters from fracture site, is just unfavorable for that doctor observes the reset case of fracture site, the effect of impact treatment.
Summary of the invention
In view of the drawbacks described above of prior art, it is an object of the invention to provide that a kind of overall weight is little, transparent medical high polymer bone external fixation device under X-ray.
It is an object of the invention to be achieved through the following technical solutions:
A kind of medical high polymer bone external fixation device, including bar bar cramp, needle rod holder, cross bar presss from both sides, pillar, and 30 °/90 ° curved posts bend semi-ring bar, straight-bar；Described bar bar cramp, described needle rod holder, described cross bar presss from both sides, described pillar, and described 30 °/90 ° curved posts use macromolecular material to make, and are provided with metal inserted piece in inside.
Further, described bar bar cramp includes the first fixture block, two the second fixture blocks, the 3rd fixture block, the first set screw, spherical washer, the first jam nut, spring；Described first fixture block, said two the second fixture block and the 3rd fixture block are linked together by described first set screw, and are fastened them together by described first jam nut；Described first set screw part near top is provided with annular boss, arranges spherical washer between annular boss and described first fixture block of described first set screw, and the bottom of described first set screw is provided with external screw thread；Described first fixture block, the contact surface of described second fixture block are provided with the tooth cooperated；Described second fixture block, the contact surface of described 3rd fixture block are provided with the tooth cooperated.
Further, it is provided with spring between said two the second fixture block；Described first fixture block be internally provided with the first metal inserted piece, the lower end of described first fixture block is provided with the first arcwall face；Second fixture block above is provided with the second arcwall face in upper end, and the second fixture block being positioned at lower section is provided with the second arcwall face in lower end；Described 3rd fixture block be internally provided with the second metal inserted piece, the 3rd metal inserted piece；It is provided with female thread on described 3rd metal inserted piece, and cooperates with the external screw thread of the bottom of the first set screw；The upper end of described 3rd fixture block is provided with the 3rd arcwall face；Described first arcwall face, described second arcwall face constitute receiving bending semi-ring bar or the space of straight-bar；Described second arcwall face, described 3rd arcwall face constitute receiving bending semi-ring bar or the space of straight-bar.
Further, described first metal inserted piece, the second metal inserted piece structure identical, described first metal inserted piece includes flat board, the first supporting part, and two the second supporting parts；It is provided with manhole on described flat board, described first supporting part and said two the second supporting part are vertically set on described flat board, it is provided with recess in the middle of described first supporting part, described first supporting part is arranged between said two the second supporting part, and said two the second supporting part is than described first supporting part more on the right side；Described 3rd metal inserted piece includes cube body and cylindrical portion；Cube body, cylindrical portion are set to integrative-structure, and arrange female thread in a cube body, cylindrical portion, the external screw thread threaded engagement of this female thread and the first set screw.
Further, described needle rod holder includes the 4th fixture block, the 5th fixture block, the 6th fixture block, the 7th fixture block, the second set screw, spherical washer, the second jam nut, spring；Described 4th fixture block, described 5th fixture block, described 6th fixture block and described 7th fixture block are linked together by described second set screw, and are fastened them together by described second jam nut；Second set screw part near top is provided with annular boss, arranges spherical washer between annular boss and the 4th fixture block of the second set screw, and the bottom of the second set screw is provided with external screw thread；4th fixture block, the contact surface of the 5th fixture block are provided with the tooth cooperated；6th fixture block, the contact surface of the 7th fixture block are provided with the tooth cooperated；It is provided with spring between 5th fixture block, the 6th fixture block；The lower end of the 4th fixture block is provided with the 4th arcwall face, and the upper end of the 5th fixture block is provided with the 5th arcwall face, and the lower end of the 6th fixture block is provided with the 6th arcwall face；7th fixture block be internally provided with the 4th metal inserted piece, fifth metal mold insert；It is provided with female thread on fifth metal mold insert, and cooperates with the external screw thread of the bottom of the second set screw；The upper end of the 7th fixture block is provided with the 7th arcwall face；4th arcwall face, the 5th arcwall face constitute the space accommodating fine steel needle；6th arcwall face, the 7th arcwall face constitute receiving bending semi-ring bar or the space of straight-bar.
Further, cross bar folder includes the first tooth block, the second tooth block, two the 3rd set screw, and two the 4th set screw；First tooth block, the second tooth block is linked together by two the 3rd set screw；First tooth block is internally provided with the 6th metal inserted piece, and the second tooth block is internally provided with the 7th metal inserted piece；First tooth block, the second tooth block is respectively arranged with spline, and spline is used for clamping 30 °/90 ° curved posts or pillar；First tooth block is provided with two recesses；The bottom surface of the first tooth block arranges countersunk head groove；First tooth block is provided with the first through hole accommodating the 3rd set screw；Being provided with female thread on 6th metal inserted piece of the first tooth block, with the external screw thread threaded engagement of the 4th set screw, two the 4th set screw are between two the 3rd set screw, and the axis of the 4th set screw and the axis of the 3rd set screw are vertically；Two the 4th set screw lay respectively at the first tooth block, on the second tooth block；Being provided with multiple 8th cambered surface on first tooth block, the second tooth block is provided with multiple 9th cambered surface, the 8th cambered surface, the 9th cambered surface constitute the space accommodating fine steel needle；3rd set screw part near top is provided with annular boss, the recess surface contact of annular boss and the first tooth block；The bottom of the 3rd set screw is provided with external screw thread；It is provided with female thread on 7th metal inserted piece, and cooperates with the external screw thread of the bottom of the 3rd set screw.
Further, the 6th metal inserted piece includes the first plate, the second plate, the first connecting plate, the second connecting plate；First connecting plate, the second connecting plate is for connecting the first plate and the second plate, the first connecting plate, and the second connecting plate is respectively arranged to accommodate the second through hole of the 3rd set screw；It is provided for accommodating the third through-hole of the 4th set screw on first plate；The side's of setting plate on second plate, and female thread is set at Fang Banchu.
Further, pillar includes support-column main body and pillar metal inserted piece.
Further, 30 °/90 ° curved posts include curved post main body, curved post spline part and curved post metal inserted piece.
Further, bar bar cramp, needle rod holder, cross bar presss from both sides, and pillar, 30 °/90 ° curved post surfaces are evenly equipped with rule or irregular lines.
Compared with the existing technology, the feature of the present invention and progress are as follows:
1, each parts of the medical high polymer bone external fixation device of the present invention use macromolecular material to make, and reduce the overall weight of medical high polymer bone external fixation device, alleviate sufferer burden.
2, each parts of the medical high polymer bone external fixation device of the present invention use macromolecular material to make, this macromolecular material is under C arm machine is irradiated, X-ray can penetrate medical high polymer bone external fixation device, unobstructed, thus, increase the light-permeable area of this medical high polymer bone external fixation device, it is simple to doctor observes fracture site reset case.
3, each components interior of the medical high polymer bone external fixation device of the present invention all has metal inserted piece, to strengthen the intensity of these series of products；And this metal inserted piece does not affect X-ray and penetrates medical high polymer bone external fixation device.
4, each parts surface of the dissection IV type medical high polymer bone external fixation device of the present invention is evenly equipped with rule or irregular lines, adds the aesthetic property of product.
Accompanying drawing explanation
Fig. 1 (a), 1(b): the structure chart of bar bar cramp；
Fig. 2 (a), 2(b): the structure chart of bar bar cramp interior metal mold insert；
Fig. 3 (a), 3(b): the structure chart of needle rod holder；
Fig. 4 (a), 4(b): the structure chart of the fixture block of needle rod holder；
Partial enlarged drawing at A in Fig. 5: Fig. 3 (b), represents Fig. 4 (a), 4(b) in the schematic diagram that matches at K；
The structure chart of Fig. 6: cross bar folder；
The axonometric chart of Fig. 7: cross bar folder；
The axonometric chart of the first tooth block of Fig. 8: cross bar folder；
The axonometric chart of the metal inserted piece of the first tooth block of Fig. 9: cross bar folder；
The structure chart of Figure 10: pillar；
The structure chart of Figure 11: 30 °/90 ° of curved posts；
The rack assumption diagram of Figure 12: tibial surgical；
The rack assumption diagram of Figure 13: femoral surgery.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
The medical high polymer bone external fixation device of the present invention includes bar bar cramp 100, needle rod holder 200, cross bar folder 300, pillar 400,30 °/90 ° curved posts 500, bends semi-ring bar 600, straight-bar 700；Bar bar cramp 100, needle rod holder 200, cross bar folder 300, pillar 400,30 °/90 ° curved posts 500 use macromolecular material to make, and are provided with metal inserted piece in inside.
Such as Fig. 1 (a), 1(b) shown in, bar bar cramp 100 includes the first fixture block 110, two the second fixture blocks 120, the 3rd fixture block 130, set screw 140, spherical washer 150, jam nut 160, spring 170；First fixture block 110, two the second fixture blocks 120 and the 3rd fixture block 130 are linked together by set screw 140, and are fastened them together by jam nut 160；The set screw 140 part near top is provided with annular boss, arranges spherical washer 150 between annular boss and first fixture block 110 of set screw 140, and the bottom of set screw 140 is provided with external screw thread；The contact surface of first fixture block the 110, second fixture block 120 is provided with the tooth cooperated, and strengthens the roughness of contact surface, adds stiff stability；The contact surface of the second fixture block the 120, the 3rd fixture block 130 is provided with the tooth cooperated, and strengthens the roughness of contact surface, adds stiff stability；It is provided with spring 170 between two the second fixture blocks 120；First fixture block 110 be internally provided with the first metal inserted piece 111, the lower end of the first fixture block 110 is provided with the first arcwall face 112；Second fixture block 120 above is provided with the second arcwall face 121 in upper end, and the second fixture block 120 being positioned at lower section is provided with the second arcwall face 121 in lower end；3rd fixture block 130 be internally provided with the second metal inserted piece 131, the 3rd metal inserted piece 132；It is provided with female thread on 3rd metal inserted piece 132, and cooperates with the external screw thread of the bottom of set screw 140；The upper end of the 3rd fixture block 130 is provided with the 3rd arcwall face 133；First arcwall face the 112, second arcwall face 121 constitutes receiving bending semi-ring bar 600 or the space of straight-bar 700；Second arcwall face the 121, the 3rd arcwall face 133 constitutes receiving bending semi-ring bar 600 or the space of straight-bar 700.
Such as Fig. 2 (a), 2(b) shown in, the structure of first metal inserted piece the 111, second metal inserted piece 131 is identical, and the first metal inserted piece 111 includes flat board 1112, the first supporting part 1113, and two the second supporting parts 1114；Manhole 1111 it is provided with on flat board 1112, set screw 140 is facilitated to pass, first supporting part 1113 and two the second supporting parts 1114 are vertically set on flat board 1112, it is provided with recess in the middle of first supporting part 1113, first supporting part 1113 is arranged between two the second supporting parts 1114, and two the second supporting part 1114 to the first supporting parts 1113 are more on the right side；3rd metal inserted piece 132 includes cube body 1321 and cylindrical portion 1322；Cube body 1321, cylindrical portion 1322 are set to integrative-structure, and arrange female thread in cube body 1321, cylindrical portion 1322, the external screw thread threaded engagement of this female thread and set screw 140.
Such as Fig. 3 (a), 3(b) shown in, needle rod holder 200 includes the 4th fixture block 210, the 5th fixture block 220, the 6th fixture block 230, the 7th fixture block 240, set screw 250, spherical washer 260, jam nut 270, spring 280；4th fixture block 210, the 5th fixture block 220, the 6th fixture block 230 and the 7th fixture block 240 are linked together by set screw 250, and are fastened them together by jam nut 270；The set screw 250 part near top is provided with annular boss, arranges spherical washer 260 between annular boss and the 4th fixture block 210 of set screw 250, and the bottom of set screw 250 is provided with external screw thread；The contact surface of the 4th fixture block the 210, the 5th fixture block 220 is provided with the tooth cooperated, and strengthens the roughness of contact surface, adds stiff stability；The contact surface of the 6th fixture block the 230, the 7th fixture block 240 is provided with the tooth cooperated, and strengthens the roughness of contact surface, adds stiff stability；It is provided with spring 280 between 5th fixture block the 220, the 6th fixture block 230；The lower end of the 4th fixture block 210 is provided with the 4th arcwall face 211, and the upper end of the 5th fixture block 220 is provided with the 5th arcwall face 221, and the lower end of the 6th fixture block 230 is provided with the 6th arcwall face 231；7th fixture block 240 be internally provided with the 4th metal inserted piece 241, fifth metal mold insert 242；It is provided with female thread on fifth metal mold insert 242, and cooperates with the external screw thread of the bottom of set screw 250；The upper end of the 7th fixture block 240 is provided with the 7th arcwall face 243；4th arcwall face the 211, the 5th arcwall face 221 constitutes the space accommodating fine steel needle 800；6th arcwall face the 231, the 7th arcwall face 243 constitutes receiving bending semi-ring bar 600 or the space of straight-bar 700；6th fixture block 230 is identical with the second fixture block 120 structure, and the 7th fixture block 240 is identical with the 3rd fixture block 130 structure.
The tooth that first fixture block the 110, second fixture block 120 cooperates, the tooth that second fixture block the 120, the 3rd fixture block 130 cooperates, the tooth that 4th fixture block the 210, the 5th fixture block 220 cooperates, and the structure of tooth that the 6th fixture block the 230, the 7th fixture block 240 cooperates is identical；As a example by the 4th fixture block the 210, the 5th fixture block 220, such as Fig. 3 (b), 4(a), 4(b), shown in 5, on the left of 4th fixture block 210, recess is provided with the first teeth portion 2101, on the left of 5th fixture block 220, protuberance is provided with the second teeth portion 2201, first teeth portion 2101 and the second teeth portion 2201 cooperate, strengthen the roughness of contact surface, add stiff stability.
As shown in figs 6-8, cross bar folder 300 includes the first tooth block 310, the second tooth block 320, two set screw 330, and two set screw 390；First tooth block 310, the second tooth block 320 is linked together by two set screw 330；First tooth block 310 is internally provided with the 6th metal inserted piece 340, and the second tooth block 320 is internally provided with the 7th metal inserted piece 350；First tooth block 310, the second tooth block 320 is respectively arranged with spline 360, and spline 360 is used for clamping 30 °/90 ° curved posts 500 or pillar 400；First tooth block 310 is provided with two recesses 380；The bottom surface of the first tooth block 310 arranges countersunk head groove 311, solves 30 °/90 ° curved posts of existing product or the defect of pillar not tight；First tooth block 310 is provided with the through hole 312 accommodating set screw 330；It is provided with female thread 313, with the external screw thread threaded engagement of set screw 390 on 6th metal inserted piece 340 of the first tooth block 310.
Two set screw 390 are between two set screw 330, and the axis of the axis of set screw 390 and set screw 330 is vertically；Two set screw 390 lay respectively at the first tooth block 310, on the second tooth block 320.
Being provided with multiple 8th cambered surface 3101 on first tooth block 310, the second tooth block 320 is provided with multiple 9th cambered surface 3201, the 8th cambered surface the 3101, the 9th cambered surface 3201 constitutes the space 370 accommodating fine steel needle 800；
The set screw 330 part near top is provided with annular boss, the recess 380 surface contact of annular boss and the first tooth block 310；The bottom of set screw 330 is provided with external screw thread；It is provided with female thread on 7th metal inserted piece 350, and cooperates with the external screw thread of the bottom of set screw 330.
As it is shown in figure 9, the 6th metal inserted piece 340 includes the first plate 342, the second plate 343, the first connecting plate 344, the second connecting plate 345；First connecting plate 344, the second connecting plate 345 is for connecting the first plate 342 and the second plate 343, and the first connecting plate 344, the second connecting plate 345 is respectively arranged to accommodate the through hole 341 of set screw 330；It is provided for accommodating the through hole 346 of set screw 390 on first plate 342；The side's of setting plate 347 on second plate 343, and female thread 313 is set at side's plate 347.The structure (not shown) of the 7th metal inserted piece 350 is similar with the structure of the 6th metal inserted piece 340, differs only in the threaded portion arranging the threaded engagement with set screw 330 at through hole 341.
Such as Figure 10 (a)-10(b), 11(a) shown in-11 (b), pillar 400 includes support-column main body 420 and pillar metal inserted piece 410；30 °/90 ° curved posts 500 include curved post main body 520, curved post spline part 530 and curved post metal inserted piece 510.
Further, bar bar cramp 100, needle rod holder 200, cross bar folder 300, pillar 400,30 °/90 ° curved post 500 surfaces are evenly equipped with rule or irregular lines, add aesthetic property.
The medical high polymer bone external fixation device of the present invention can be built different types of support according to practical situation needs, such as, can build supporting structure as shown in figure 12.Figure 12 is the supporting structure of tibia 900 operation, and it is by bar bar cramp 100, needle rod holder 200, cross bar 300,30 °/90 ° curved post 500(of folder or pillar 400), bend semi-ring bar 600, straight-bar 700 and fine steel needle 800 form.
The medical high polymer bone external fixation device operating procedure of the present invention describes with the supporting structure of femur 1000 operation that Figure 13 builds:
During open operation:
(1) wound surface needed for cutting operation；
(2) the preoperative set screw that should thoroughly loosen medical high polymer bone external fixation device, to guarantee to connect in art can snap in groove；
(3) according to fracture fracture location, 2 fine steel needles 800 are stamped respectively in fracture both sides, position respectively；
(4) fine steel needle 800 is fixed in the clip slot in the middle of cross bar folder 300, locks end face two set screw 330；
(5) spline 360 of the curved post spline part 530 of 30 °/90 ° curved posts 500 with cross bar folder 300 is connected, locks；
(6) use bar bar cramp that straight-bar 700, cross bar 300,30 °/90 ° of curved posts 500 of folder etc. are connected into a fixing support, have ensured that fracture, under the effect of external force, is fixed and closes；
(7) wound surface is sewed up.
Open operation uses the medical high polymer bone external fixation device of the present invention, it is possible to decrease the overall weight of support, alleviates the burden of patient.
During Minimally Invasive Surgery:
(1) under C arm machine is irradiated, perform the operation；
(2) the preoperative set screw that should thoroughly loosen medical high polymer bone external fixation device, to guarantee to connect in art can snap in groove；
(3) according to fracture fracture location, 2 fine steel needles 800 are stamped respectively in fracture both sides, position respectively；
(4) fine steel needle 800 is fixed in the clip slot in the middle of cross bar folder 300, locks end face two set screw 330；
(5) spline 360 of the curved post spline part 530 of 30 °/90 ° curved posts 500 with cross bar folder 300 is connected, locks；
(6) use bar bar cramp that straight-bar 700, cross bar 300,30 °/90 ° of curved posts 500 of folder etc. are connected into a fixing support, have ensured that fracture, under the effect of external force, is fixed and closes.
Minimally Invasive Surgery uses the medical high polymer bone external fixation device of the present invention, can increase the light-permeable area of product and reduce the overall weight of support, alleviating the burden of patient.
But, those of ordinary skill in the art will be appreciated that, above embodiment is intended merely to the present invention is described, and it is not used as limitation of the invention, as long as in the spirit of the present invention, change, the modification of embodiment described above all will be fallen in the range of claims of the present invention.
Claims (10)
1. a medical high polymer bone external fixation device, including bar bar cramp (100), needle rod holder (200), cross bar folder (300), pillar (400), 30 °/90 ° curved posts (500), bending semi-ring bar (600), straight-bar (700)；It is characterized in that, described bar bar cramp (100), described needle rod holder (200), described cross bar folder (300), described pillar (400), described 30 °/90 ° curved posts (500) use macromolecular material to make, and are provided with metal inserted piece in inside.
Medical high polymer bone external fixation device the most according to claim 1, it is characterized in that, described bar bar cramp (100) includes the first fixture block (110), two the second fixture blocks (120), 3rd fixture block (130), the first set screw (140), spherical washer (150), first jam nut (160), spring (170)；Described first fixture block (110), said two the second fixture block (120) and the 3rd fixture block (130) are linked together by described first set screw (140), and are fastened them together by described first jam nut (160)；Described first set screw (140) part near top is provided with annular boss, arranging spherical washer (150) between annular boss and described first fixture block (110) of described first set screw (140), the bottom of described first set screw (140) is provided with external screw thread；Described first fixture block (110), the contact surface of described second fixture block (120) are provided with the tooth cooperated；Described second fixture block (120), the contact surface of described 3rd fixture block (130) are provided with the tooth cooperated.
Medical high polymer bone external fixation device the most according to claim 2, it is characterised in that be provided with spring (170) between said two the second fixture block (120)；Described first fixture block (110) be internally provided with the first metal inserted piece (111), the lower end of described first fixture block (110) is provided with the first arcwall face (112)；Second fixture block (120) above is provided with the second arcwall face (121) in upper end, and the second fixture block (120) being positioned at lower section is provided with the second arcwall face (121) in lower end；Described 3rd fixture block (130) be internally provided with the second metal inserted piece (131), the 3rd metal inserted piece (132)；It is provided with female thread on described 3rd metal inserted piece (132), and cooperates with the external screw thread of the bottom of the first set screw (140)；The upper end of described 3rd fixture block (130) is provided with the 3rd arcwall face (133)；Described first arcwall face (112), described second arcwall face (121) constitute receiving bending semi-ring bar (600) or the space of straight-bar (700)；Described second arcwall face (121), described 3rd arcwall face (133) constitute receiving bending semi-ring bar (600) or the space of straight-bar (700).
Medical high polymer bone external fixation device the most according to claim 3, it is characterized in that, described first metal inserted piece (111), the second metal inserted piece (131) structure identical, described first metal inserted piece (111) includes flat board (1112), first supporting part (1113), and two the second supporting parts (1114)；Manhole (1111) it is provided with on described flat board (1112), described first supporting part (1113) and said two the second supporting part (1114) are vertically set on described flat board (1112), it is provided with recess in the middle of described first supporting part (1113), described first supporting part (1113) is arranged between said two the second supporting part (1114), and said two the second supporting part (1114) is than described first supporting part (1113) more on the right side；Described 3rd metal inserted piece (132) includes a cube body (1321) and cylindrical portion (1322)；Cube body (1321), cylindrical portion (1322) are set to integrative-structure, and arrange female thread in a cube body (1321), cylindrical portion on (1322), this female thread and the external screw thread threaded engagement of the first set screw (140).
Medical high polymer bone external fixation device the most according to claim 1, it is characterized in that, described needle rod holder (200) includes the 4th fixture block (210), 5th fixture block (220), the 6th fixture block (230), the 7th fixture block (240), second set screw (250), spherical washer (260), the second jam nut (270), spring (280)；Described 4th fixture block (210), described 5th fixture block (220), described 6th fixture block (230) and described 7th fixture block (240) are linked together by described second set screw (250), and are fastened them together by described second jam nut (270)；Second set screw (250) part near top is provided with annular boss, arranges spherical washer (260) between annular boss and the 4th fixture block (210) of the second set screw (250), and the bottom of the second set screw (250) is provided with external screw thread；4th fixture block (210), the contact surface of the 5th fixture block (220) are provided with the tooth cooperated；6th fixture block (230), the contact surface of the 7th fixture block (240) are provided with the tooth cooperated；It is provided with spring (280) between 5th fixture block (220), the 6th fixture block (230)；The lower end of the 4th fixture block (210) is provided with the 4th arcwall face (211), and the upper end of the 5th fixture block (220) is provided with the 5th arcwall face (221), and the lower end of the 6th fixture block (230) is provided with the 6th arcwall face (231)；7th fixture block (240) be internally provided with the 4th metal inserted piece (241), fifth metal mold insert (242)；It is provided with female thread on fifth metal mold insert (242), and cooperates with the external screw thread of the bottom of the second set screw (250)；The upper end of the 7th fixture block (240) is provided with the 7th arcwall face (243)；4th arcwall face (211), the 5th arcwall face (221) constitute the space accommodating fine steel needle (800)；6th arcwall face (231), the 7th arcwall face (243) constitute receiving bending semi-ring bar (600) or the space of straight-bar (700).
Medical high polymer bone external fixation device the most according to claim 1, it is characterised in that cross bar folder (300) includes the first tooth block (310), the second tooth block (320), two the 3rd set screw (330), and two the 4th set screw (390)；First tooth block (310), the second tooth block (320) is linked together by two the 3rd set screw (330)；First tooth block (310) is internally provided with the 6th metal inserted piece (340), and the second tooth block (320) is internally provided with the 7th metal inserted piece (350)；First tooth block (310), the second tooth block (320) is respectively arranged with spline (360), and spline (360) is used for clamping 30 °/90 ° curved posts (500) or pillar (400)；First tooth block (310) is provided with two recesses (380)；The bottom surface of the first tooth block (310) arranges countersunk head groove (311)；First tooth block (310) is provided with the first through hole (312) accommodating the 3rd set screw (330)；It is provided with female thread (313) on 6th metal inserted piece (340) of the first tooth block (310), external screw thread threaded engagement with the 4th set screw (390), two the 4th set screw (390) are positioned between two the 3rd set screw (330), and the axis of the 4th set screw (390) and the axis of the 3rd set screw (330) are vertically；Two the 4th set screw (390) lay respectively at the first tooth block (310), on the second tooth block (320)；Being provided with multiple 8th cambered surface (3101) on first tooth block (310), the second tooth block (320) is provided with multiple 9th cambered surface (3201), the 8th cambered surface (3101), the 9th cambered surface (3201) constitute the space (370) accommodating fine steel needle (800)；3rd set screw (330) part near top is provided with annular boss, recess (380) the surface contact of annular boss and the first tooth block (310)；The bottom of the 3rd set screw (330) is provided with external screw thread；It is provided with female thread on 7th metal inserted piece (350), and cooperates with the external screw thread of the bottom of the 3rd set screw (330).
Medical high polymer bone external fixation device the most according to claim 6, it is characterised in that the 6th metal inserted piece (340) includes the first plate (342), the second plate (343), the first connecting plate (344), the second connecting plate (345)；First connecting plate (344), the second connecting plate (345) is for connecting the first plate (342) and the second plate (343), the first connecting plate (344), and the second connecting plate (345) is respectively arranged to accommodate second through hole (341) of the 3rd set screw (330)；It is provided for accommodating the third through-hole (346) of the 4th set screw (390) on first plate (342)；The side's of setting plate (347) on second plate (343), and female thread (313) is set at square plate (347) place.
Medical high polymer bone external fixation device the most according to claim 1, it is characterised in that pillar (400) includes support-column main body (420) and pillar metal inserted piece (410).
Medical high polymer bone external fixation device the most according to claim 1, it is characterised in that 30 °/90 ° curved posts (500) include curved post main body (520), curved post spline part (530) and curved post metal inserted piece (510).
Medical high polymer bone external fixation device the most according to claim 1, it is characterised in that bar bar cramp (100), needle rod holder (200), cross bar folder (300), pillar (400), 30 °/90 ° curved post (500) surfaces are evenly equipped with rule or irregular lines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610401317.5A CN105943141B (en) | 2016-06-09 | 2016-06-09 | A kind of medical high polymer bone external fixation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610401317.5A CN105943141B (en) | 2016-06-09 | 2016-06-09 | A kind of medical high polymer bone external fixation device |
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| CN105943141A true CN105943141A (en) | 2016-09-21 |
| CN105943141B CN105943141B (en) | 2018-07-10 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105943141B (en) | 2018-07-10 |
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