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CN105342729B - Arc-shaped distraction fusion apparatus - Google Patents

Arc-shaped distraction fusion apparatus Download PDF

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Publication number
CN105342729B
CN105342729B CN201510902606.9A CN201510902606A CN105342729B CN 105342729 B CN105342729 B CN 105342729B CN 201510902606 A CN201510902606 A CN 201510902606A CN 105342729 B CN105342729 B CN 105342729B
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China
Prior art keywords
hole
fusion
distraction plate
nut
round tube
Prior art date
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CN201510902606.9A
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Chinese (zh)
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CN105342729A (en
Inventor
黄锡艺
白艳丽
王雅玲
缪国帅
李英浩
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Beijing Fule Science & Technology Development Co Ltd
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Beijing Fule Science & Technology Development Co Ltd
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Priority to CN201510902606.9A priority Critical patent/CN105342729B/en
Publication of CN105342729A publication Critical patent/CN105342729A/en
Application granted granted Critical
Publication of CN105342729B publication Critical patent/CN105342729B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442Intervertebral or spinal discs, e.g. resilient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses an arc-shaped distraction fusion apparatus. The arc-shaped distraction fusion apparatus comprises a nut, a connection body, a linkage shaft, a linkage body, a fusion body, a lower distraction plate and an upper distraction plate. The nut is connected with the fusion body through the connection body. The lower distraction plate and the upper distraction plate are connected to the lower face and the upper face of the fusion body respectively. The linkage body is arranged in the fusion body. The right end of the linkage body is movably connected with the lower distraction plate and the upper distraction plate. The left end of the linkage body is connected with the right end of the linkage shaft. The left end of the linkage shaft is connected with the nut. The linkage body can be driven by the linkage shaft to move by screwing the nut so that the lower distraction plate and the upper distraction plate located on the lower face and the upper face of the fusion body can be supported to be opened downwards and upwards respectively. By means of the arc-shaped distraction fusion apparatus, the intervertebral space height can be adjusted in spinal disease operations such as thoracolumbar intervertebral operations, operations can be conveniently performed, and the operation efficiency is improved.

Description

A kind of arc struts fusion device
Technical field
Fusion device is strutted the present invention relates to technical field of medical instruments, especially a kind of arc.
Background technology
Fusion is one of method for the treatment of spinal disease between Thoracolumbar disk, and annual increasing crowd receives intervertebral fusion The treatment of art.Interbody fusion includes autologous bone transplanting fusion and allogenic bone transplantation fusion, due to autologous bone limited source, increases For area's wound, timely mechanically stable can not be provided the shortcomings of so that the clinical practice of interbody fusion is restricted, and allosome Bone collection is not only costly, limited amount but also the viral transmission and immunological rejection that are caused by allograph bone be also influence its in clinic Wide variety of main cause.In recent years, to improve bone collection fusion rate, outer fixed dependence is reduced, improves and keep backbone Curvature, Invasive lumbar fusion device arises at the historic moment.
The content of the invention
For the problem that prior art is present, fusion device is strutted the invention provides a kind of arc, the arc struts fusion Device can adjust intervertebral height.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that:
A kind of arc of the present invention struts fusion device, including nut, connector, couple axle, interlock body, fusion, under strut Plate and upper distraction plate;The nut connects fusion by connector, and the lower distraction plate and upper distraction plate are connected to and melt Fit upper and lower face, the gearing body is arranged in fusion and right-hand member is flexibly connected with lower distraction plate and upper distraction plate, the company Kinetoplast left end connects couple axle right-hand member, and the couple axle left end attaching nut, the nut is located in connector;Screw the spiral shell Mother can be driven to interlock body and move by couple axle and be divided with by the lower distraction plate and upper distraction plate that are located at the upper and lower face of fusion respectively Not strutted to lower and upper;
Further, the nut interior is the first screwed hole, and six notches are set on left end outer peripheral face, is easy to apparatus Capture, right-hand member outside is spherical.
Further, the connector upper surface is arcuation face, and middle setting circular hole, circular hole sets deep-slotted chip breaker on lateral margin, Circular hole end is provided with the first sphere, and when nut loads connector, angled when being assembled with connector due to nut, deep-slotted chip breaker can Ensure that nut smoothly loads;The arranged on left and right sides of connector is provided with dovetail shaped protruding parts, the upper table of dovetail shaped protruding parts Face is arcwall face, and dovetail shaped protruding parts bottom inside is provided with groove, and groove is set to interior receipts structure.
Further, the couple axle is set to step-like axle, and left end shaft outside is threaded, and inside sets the second screw thread Hole, right-hand member axle is provided with the second sphere, and the second sphere both sides set round tube hole into round pie face, the second sphere inside.
Further, the gearing body is overall into kidney shape, interlocks and first through hole and the second through hole are set on body, and left end is set Groove, the sphere of couple axle right-hand member is placed in groove, and the round pie face of the couple axle is in contact with groove above and below, inside sphere Through hole coaxial line on the left of round tube hole and gearing body, inserts round tube hole and through hole to connect couple axle and interlock body by pin, sells Nail two ends anti-riveting, making the sphere of couple axle can rotate in the groove for interlocking body.
Further, into kidney shape, there is the first bone grafting hole inside to the fusion, is upper and lower symmetrical structure, left and right two ends Face is arranged to cambered surface into arcuation, left side, can be engaged with the cambered surface of connector upper surface, and dovetail groove is set on left side, with The dovetail shaped protruding parts of connector are engaged, and through hole is set on left side, and the front and back of fusion is arcuation, concyclic The heart, before on be provided with big round tube hole and the first little round tube hole, behind it is upper second little round tube hole is set, the second little round tube hole with it is preceding The first little round tube hole coaxial line on face, and first little round tube hole and the second little round tube hole in the excessively forward and backward face of this axis are total The center of circle, the second little round tube hole is upper and lower respectively a location hole;5 groups of spiral cambers are provided with fusion upper surface, respectively One spiral camber, the second spiral camber, the 3rd spiral camber, the 4th spiral camber and the 5th spiral camber, fusion lower surface Symmetrical with upper surface, 5 groups of pivots of spiral camber are coaxial with the center of circle of the front and back of fusion.
Further, there is fish scale-shaped spinous process the lower distraction plate upper surface, and increasing friction force strengthens anti-abjection power, middle Position sets the second bone grafting hole, and lower surface sets cylinder, and the front and rear sides of lower surface is additionally provided with cambered surface boss, wherein side Cambered surface boss on be provided with mounting hole;It is provided with five groups of spiral cambers on the lower distraction plate, respectively the 6th spiral camber, 7th spiral camber, the 8th spiral camber, the 9th spiral camber and the tenth spiral camber, and form breach at three, respectively the One breach, the second breach and the 3rd breach, the 6th spiral camber and the first breach can with merge mates;The upper distraction plate It is symmetrical with lower distraction plate;The cylinder of upper and lower distraction plate is placed in the round tube hole for interlocking body right-hand member.
Further, also including two spacer pins, two spacer pins divide into ladder shaft-like, the wherein big one end of diameter It is not placed on two location holes of fusion, the small one end of diameter is respectively placed on distraction plate and the mounting hole of lower distraction plate, Then by the two ends anti-riveting of spacer pin, during strutting, spacer pin is slided in mounting hole.
Compared with prior art, Advantageous Effects of the invention:Couple axle, couple axle is driven to drive by screw on nut Interlock body, interlock body drive upper and lower distraction plate separately down, on strut, realize regulation intervertebral height.
The invention will be further described for explanation below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is structure chart of the invention;
Fig. 2 is front view of the invention;
Fig. 3 is top view of the present invention;
Fig. 4 is the sectional view of A-A of the present invention;
Fig. 5 is nut front view of the present invention;
Fig. 6 is the structure chart of connector of the present invention;
Fig. 7 is couple axle front view of the present invention;
Fig. 8 is couple axle top view of the present invention;
Fig. 9 interlocks body front view for the present invention;
Figure 10 interlocks body top view for the present invention;
Figure 11 is fusion structure chart of the present invention;
Figure 12 is fusion front view of the present invention;
Figure 13 is fusion top view of the present invention;
Figure 14 is fusion rearview of the present invention;
Figure 15 is fusion spiral camber schematic diagram of the present invention;
Figure 16 is the lower distraction plate structure chart of the present invention;
Figure 17 is the lower distraction plate spiral camber schematic diagram of the present invention;
Figure 18 is the upper distraction plate structure chart of the present invention;
Figure 19 is spacer pin front view of the present invention.
Description of reference numerals:1- nuts;2- connectors;3- couple axles;4- pins;5- interlocks body;6- fusions;Supportted under 7- Open plate;The upper distraction plates of 8-;9- spacer pins;The screwed holes of 10- first;11- notches;12- sphericals;13- circular holes;14- deep-slotted chip breakers; 15- arcwall faces;16- grooves;17- screw threads;The screwed holes of 18- second;The spheres of 19- second;20- round tube holes;21- first through hole;22- Second through hole;23- grooves;The first bone graftings of 24- hole;25- left sides;26- through holes;The big round tube holes of 27-;The little round tube hole of 28- first; The little round tube hole of 29- second;30- location holes;The spiral cambers of 31- first;32- fish scale-shaped spinous process;The second bone graftings of 33- hole;34- justifies Post;35- cambered surface boss;36- mounting holes;The spiral cambers of 37- the 6th;38- upper surfaces;The spheres of 39- first;40- dovetail shapeds are protruded Position;41- round pies face;42- dovetail grooves;The spiral cambers of 43- second;The spiral cambers of 44- the 3rd;The spiral cambers of 45- the 4th; The spiral cambers of 46- the 5th;The spiral cambers of 47- the 7th;The spiral cambers of 48- the 8th;The spiral cambers of 49- the 9th;The helical curves of 50- the tenth Face;The breach of 51- first;The breach of 52- second;The breach of 53- the 3rd.
Specific embodiment
As Figure 1-3, a kind of arc struts fusion device, including nut 1, connector 2, couple axle 3, gearing body 5, fusion Body 6, lower distraction plate 7 and upper distraction plate 8;The nut 1 connects fusion 6, the lower distraction plate 7 and upper support by connector 2 Open plate 8 and be connected to the upper and lower face of fusion 6, the gearing body 5 is arranged in fusion 6 and right-hand member and lower distraction plate 7 and upper Distraction plate 8 is flexibly connected, the gearing body 5 left end connection right-hand member of couple axle 3, the left end attaching nut 1 of the couple axle 3;Screw The nut 1 can drive gearing body 5 to move with the lower distraction plate 7 by the upper and lower face of fusion 6 is located at respectively by couple axle 3 It is upper and lower with upper distraction plate 8 to strut.
As shown in figure 5, the inside of nut 1 is the first screwed hole 10, six notches 11 are set on left end outer peripheral face, are easy to apparatus Capture, right-hand member outside is spherical 12;
As described in Figure 6, the upper surface 38 of the connector 2 is arcuation face, and middle setting circular hole 13 is set on the lateral margin of circular hole 13 Deep-slotted chip breaker 14, the end of circular hole 13 is provided with the first sphere 39, after nut 1 is assembled, has when being assembled with connector 2 due to nut 1 Angle, deep-slotted chip breaker 14 can ensure that nut 1 smoothly loads;The arranged on left and right sides of connector 2 is provided with dovetail shaped protruding parts 40, The upper surface of dovetail shaped protruding parts 40 is arcwall face 15, and the bottom inside of dovetail shaped protruding parts 40 is provided with groove 16, Groove 16 is set to interior receipts structure;
As Figure 7-8, the couple axle 3 is set to step-like axle, and left end shaft outside is threaded 17, and inside sets the Two screwed holes 18, right-hand member axle is provided with the second sphere 19, and the both sides of the second sphere 19 set into round pie face 41 inside second sphere 19 Put round tube hole 20;
As shown in figs. 9-10, the gearing body 5 is overall into kidney shape, interlocks and the through hole of first through hole 21 and second is set on body 5 22, left end sets groove 23, and the sphere 19 of the right-hand member of couple axle 3 is placed in groove 23, round pie face 41 and the groove 23 of the couple axle 3 Above and below is in contact, the coaxial line of through hole 21 in the round tube hole 20 inside sphere 19 and the left side of gearing body 5, and pin 4 is inserted into circle , to connect couple axle 3 and gearing body 5, the two ends anti-riveting of pin 4, making the sphere 19 of couple axle 3 can interlock for through hole 20 and through hole 21 Rotated in the groove 23 of body 5;
As shown in figs. 11 and 15,6 one-tenth kidney shapes of the fusion, there is the first bone grafting hole 24 inside, is upper and lower symmetrical structure, Left and right both ends of the surface are arranged to cambered surface into arcuation, left side 25, can be engaged with the cambered surface of the upper surface 38 of connector 2, left side 25 Upper setting dovetail groove 42, is engaged with the dovetail shaped protruding parts 40 of connector 2, and through hole 26, fusion 6 are set on left side 25 Front and back be arcuation, the concyclic heart, before on be provided with the little round tube hole 28 of big round tube hole 27 and first, behind upper set the Two little round tube hole 29, the second little round tube hole 29 and the coaxial line of the first little round tube hole 28 above gone up, and the excessively forward and backward face of this axis The first little round tube hole 28 and the total center of circle of the second little round tube hole 29, the second little round tube hole 29 is upper and lower respectively a location hole 30; Five groups of spiral cambers are set on the upper surface of fusion 6, and the first spiral camber 31 is located at the upper surface left end of fusion 6, second Spiral camber 43 is located at the front and rear sides of the left end of the upper surface of fusion 6, and the 3rd spiral camber 44 is located at the upper table of fusion 6 Front and rear sides in the middle of face, the 4th spiral camber 45 is located at the front and rear sides of the upper surface right-hand member of fusion 6, the 5th helical curve Face 46 is located at the upper surface right-hand member of fusion 6, and lower surface and the upper surface of fusion 6 are symmetrical arranged;Spiral camber 31,43,44, 45th, 46 pivot is coaxial with the center of circle of front and back.
As shown in figs. 16-17, there is fish scale-shaped spinous process 32 upper surface of lower distraction plate 7, and increasing friction force strengthens anti-abjection Power, middle part sets the second bone grafting hole 33, and lower surface sets cylinder 34, and it is convex that the front and rear sides of lower surface is additionally provided with cambered surface Mounting hole 36 is provided with the cambered surface boss 35 of platform 35, wherein side;Five groups of spiral cambers are provided with the lower distraction plate 7, Wherein the 6th spiral camber 37 is located at the left end of the lower surface of lower distraction plate 7, and the 7th spiral camber 47 is located at the lower surface of lower distraction plate 7 The preceding both sides of left end, the 8th spiral camber 48 is located at the front and rear sides in the middle of the lower surface of lower distraction plate 7, the 9th spiral camber 49 Positioned at the front and rear sides of the lower surface right-hand member of lower distraction plate 7, the tenth spiral camber 50 is located at the right-hand member of the lower surface of lower distraction plate 7, And breach at formation three, respectively the first breach 51 between the 7th spiral camber 47 and the 8th spiral camber 48, it is located at The second breach 52 and the 3rd breach 53 between 8th spiral camber 48 and the 9th spiral camber 49, wherein the 6th spiral camber 37 Can be engaged with fusion 6 with the first breach 51;As shown in figure 18, the upper distraction plate 8 is symmetrical with lower distraction plate 7;During assembling, The cylinder 34 of upper and lower distraction plate 7,8 is placed in the round tube hole 22 for interlocking the right-hand member of body 5.
As shown in figure 19, it is the front view of spacer pin 9,9 one-tenth ladder shaft-like of spacer pin.As shown in figure 4, two pins 9 are used for Fusion 6 is connected with upper distraction plate 8 with lower distraction plate 7 respectively, wherein the big one end of diameter is respectively placed in two of fusion 6 On location hole 30, the small one end of diameter is respectively placed on distraction plate 8 and the mounting hole 36 of lower distraction plate 7, and by 9 liang of spacer pin End anti-riveting, during strutting, spacer pin 9 is slided in mounting hole 36.
Installation step is as follows:
1st, connector 2, gearing body 5 are loaded into fusion 6 respectively;
2nd, after couple axle 3 being loaded into fusion 6 from connector 2, then couple axle 3 is connected with body 2 is interlocked with pin 4, is sold Follow closely 4 two ends anti-rivetings, it is ensured that the flexible swinging of couple axle 3;
3rd, nut 1 is screwed into couple axle 3, it is ensured that the process being screwed into can will interlock body 5 and drive;
4th, by lower distraction plate 7, upper distraction plate 8 load gearing body 5 and fusion 6, it is ensured that be screwed into nut 1 at present distraction plate 7, Upper distraction plate 8 can be strutted smoothly up and down;
5th, spacer pin 9 is loaded after confirming the 4th step, end face is riveted tightly, and smoothing, is allowed to not see vestige, and reaffirm the 4th Step effect.
Embodiment described above is only that preferred embodiment of the invention is described, and not the scope of the present invention is carried out Limit, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art make to technical scheme Various modifications and improvement, all should fall into claims of the present invention determination protection domain in.

Claims (6)

1. a kind of arc struts fusion device, including nut (1), connector (2), couple axle (3), interlock body (5), fusion (6), Lower distraction plate (7) and upper distraction plate (8);The nut (1) connects fusion (6), the lower distraction plate by connector (2) (7) and upper distraction plate (8) is connected to fusion (6) upper and lower face, the gearing body (5) is arranged in fusion (6) and right End is flexibly connected with lower distraction plate (7) and upper distraction plate (8), described gearing body (5) left end connection couple axle (3) right-hand member, described Couple axle (3) left end attaching nut (1), the nut is located in connector (2);Screwing the nut (1) can be by interlocking Axle (3) drives and interlocks body (5) motion with the lower distraction plate (7) and upper distraction plate (8) by fusion (6) upper and lower face is located at respectively Strut separately down and above;
The couple axle (3) is set to step-like axle, and left end shaft outside is threaded (17), and inside sets the second screwed hole (18), right-hand member axle is provided with the second sphere (19), and the second sphere (19) both sides are into round pie face (41), and the second sphere (19) is internal Round tube hole (20) is set;Gearing body (5) is overall into kidney shape, interlocks and first through hole (21) and the second through hole are set on body (5) (22), left end sets groove (23), and the sphere (19) of couple axle (3) right-hand member is placed in groove (23), the round pie of the couple axle (3) Face (41) is in contact with groove (23) above and below, the through hole (21) on the left of the internal round tube hole (20) of sphere (19) and gearing body (5) Coaxial line, inserts round tube hole (20) and through hole (21) to connect couple axle (3) and interlock body (5), pin (4) two by pin (4) End anti-riveting, making the sphere (19) of couple axle (3) can rotate in the groove (23) for interlocking body (5).
2. arc according to claim 1 struts fusion device, it is characterised in that:It is the first screw thread inside the nut (1) Hole (10), sets six notches (11) on left end outer peripheral face, be easy to apparatus to capture, and right-hand member outside is spherical (12).
3. arc according to claim 1 struts fusion device, it is characterised in that:The connector (2) upper surface (38) is Arcuation face, middle setting circular hole (13) sets deep-slotted chip breaker (14) on circular hole (13) lateral margin, circular hole (13) end is provided with the first ball Face (39), when nut (1) loads connector (2), angled when being assembled with connector (2) due to nut (1), deep-slotted chip breaker (14) can Ensure that nut (1) smoothly loads;The arranged on left and right sides of connector (2) is provided with dovetail shaped protruding parts (40), and dovetail shaped is protruded The upper surface at position (40) is arcwall face (15), and dovetail shaped protruding parts (40) bottom inside is provided with groove (16), recessed Groove (16) is set to interior receipts structure.
4. arc according to claim 3 struts fusion device, it is characterised in that:Into kidney shape, inside has the fusion (6) First bone grafting hole (24), is upper and lower symmetrical structure, and left and right both ends of the surface are arranged to cambered surface into arcuation, left side (25), can be with company The cambered surface of junctor (2) upper surface (38) is engaged, and dovetail groove (42), the dovetail shaped with connector (2) are set on left side (25) Protruding parts (40) are engaged, and through hole (26) is set on left side (25), and the front and back of fusion (6) is arcuation, concyclic The heart, before on be provided with big round tube hole (27) and the first little round tube hole (28), behind upper second little round tube hole (29), second are set Little round tube hole (29) and the first little round tube hole (28) coaxial line above gone up, and first roundlet in the excessively forward and backward face of this axis is logical Hole (28) and the total center of circle of the second little round tube hole (29), the second little round tube hole (29) is upper and lower respectively a location hole (30);Fusion Spiral camber (31,43,44,45,46) is set on body (6) upper and lower surface, in the rotation of spiral camber (31,43,44,45,46) The heart is coaxial with the center of circle of the front and back of fusion (6).
5. arc according to claim 1 struts fusion device, it is characterised in that:There is fish lower distraction plate (7) upper surface Squamous spinous process (32), increasing friction force strengthens anti-abjection power, and middle part sets the second bone grafting hole (33), and lower surface sets circle Post (34), the front and rear sides of lower surface is additionally provided with cambered surface boss (35), is wherein provided with waist on the cambered surface boss (35) of side Shape hole (36);Spiral camber (37,47,48,49,50) is provided with the lower distraction plate (7), and forms breach, spiral at three Curved surface (37) and one of breach can be engaged with fusion (6);The upper distraction plate (8) is symmetrical with lower distraction plate (7); The cylinder (34) of upper and lower distraction plate (7,8) is placed in the round tube hole (22) for interlocking body (5) right-hand member.
6. the arc according to claim 4 or 5 struts fusion device, it is characterised in that:Also include two spacer pins (9), two The individual spacer pin (9) is respectively placed in two location holes (30) of fusion (6) into ladder shaft-like, the wherein big one end of diameter On, the small one end of diameter is respectively placed on distraction plate (8) and the mounting hole (36) of lower distraction plate (7), then by spacer pin (9) Two ends anti-riveting, during strutting, spacer pin (9) is slided in the mounting hole (36).
CN201510902606.9A 2015-12-09 2015-12-09 Arc-shaped distraction fusion apparatus Active CN105342729B (en)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN105342729B true CN105342729B (en) 2017-05-24

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Publication number Priority date Publication date Assignee Title
CN106821556A (en) * 2017-02-14 2017-06-13 上海凯利泰医疗科技股份有限公司 A kind of lumbar fusion cages and its use instrument
CN111938882A (en) * 2020-08-24 2020-11-17 四川大学华西医院 A posterior atlantoaxial lateral mass joint fusion fixator assembly

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Publication number Priority date Publication date Assignee Title
ES2339472T3 (en) * 2006-11-23 2010-05-20 Biedermann Motech Gmbh EXPANSIBLE INTERVERTEBRAL IMPLANT.
US8795366B2 (en) * 2010-01-11 2014-08-05 Innova Spinal Technologies, Llc Expandable intervertebral implant and associated surgical method
CN101972179B (en) * 2010-10-26 2012-09-05 申勇 Adjustable cervical interbody fusion cage
US9492288B2 (en) * 2013-02-20 2016-11-15 Flexuspine, Inc. Expandable fusion device for positioning between adjacent vertebral bodies
CN203183090U (en) * 2013-02-20 2013-09-11 魏志轩 Expandable type implantation object of minimally invasive surgery
US9149367B2 (en) * 2013-03-15 2015-10-06 Globus Medical Inc Expandable intervertebral implant
CN205215457U (en) * 2015-12-09 2016-05-11 胡桓宇 Arc struts integration ware

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