CN206214168U - Artificial vertebral body fixed system - Google Patents

Abstract

The utility model provides a kind of artificial vertebral body fixed system, including：Artificial vertebral body main body, is arranged between adjacent Human Physiology centrum；Two longitudinally connected rods, are separately positioned on the both sides of the spinous process of Human Physiology centrum；Lateral connection is followed closely, and is connected between artificial vertebral body main body and each longitudinally connected rod；Connecting portion, is connected in artificial vertebral body main body, and connecting portion has self tapping through hole or screwed hole, when connecting portion has self tapping through hole, self tapping forms helicitic texture when lateral connection nail screws in self tapping through hole, and when connecting portion has screwed hole, lateral connection nail coordinates with screwed hole.The technical solution of the utility model efficiently solves the problem of artificial vertebral body stability difference in the prior art.

Description

Artificial vertebral body fixed system

Technical field

The utility model is related to orthopaedics to be implanted into field, in particular to a kind of artificial vertebral body fixed system.

Background technology

In the treatment of human spine's disease, because tumor of spine, tuberculosis and serious fracture often cause vertebral bodies destroyed, can Spinal nerve can be caused to damage and have to implement Vertebrae resection.Backbone after vertebral resection need to rebuild its stability, manually The appearing as of vertebral body prosthesis art treats such disease there is provided a kind of ideal method.From eighties of last century end of the sixties first Report vertebral tumor excision and with prosthese substitute since, artificial vertebral body is clinically obtained as the effective vertebral body replacements of a class Extensive use.

But show traditional artificial vertebral body in some aspects in clinical practice and a series of Biomechanics test There is a problem of that some are to be solved, particularly：Stability in terms of postoperative axial-rotation not enough, is combined strong with upper hypocentrum early stage Degree is low to be easily caused implant displacement even abjection.The design of the upper and lower soleplate of artificial vertebral body is caused for the bone amount for ensureing center bone grafting hole Area reduces, and support degree is not enough so that artificial vertebral body is absorbed in the soleplate of hypocentrum and finally loses preferable height Degree.

In order to reduce the influence of above mentioned problem, people have to additional while implantable artificial centrum main body implement preceding road The way of escape nail-plate or nail rod fixed system to improve early stage and the bone fusion phase stability.In the prior art, preceding road or The top board or nail rod fixed system of person's way of escape are generally connected by cross screw with artificial vertebral body main body.Cross screw and artificial vertebra Phosphor bodies junction is coordinated by external screw thread and screwed hole.Found in clinic and in Biomechanics test, through after a while Use after, above-mentioned external screw thread is not sufficiently stable with the cooperation of screwed hole, the situation for screw thread abjection easily occur, and then causes artificial The displacement of centrum main body is even deviate from.

Utility model content

The utility model aims to provide a kind of artificial vertebral body fixed system, to solve artificial vertebral body stability in the prior art Poor problem.

To achieve these goals, according to one side of the present utility model, there is provided a kind of artificial vertebral body fixed system, Including：Artificial vertebral body main body, is arranged between adjacent Human Physiology centrum；Two longitudinally connected rods, are separately positioned on human body The both sides of the spinous process of physiology centrum；Lateral connection is followed closely, and is connected between artificial vertebral body main body and each longitudinally connected rod；Connecting portion, It is connected in artificial vertebral body main body, connecting portion has self tapping through hole or screwed hole, when connecting portion has self tapping through hole, laterally connects Connect self tapping when nail screws in self tapping through hole and form helicitic texture, when connecting portion has screwed hole, lateral connection nail coordinates with screwed hole.

Further, artificial vertebral body main body includes ear-ring structure, and connecting portion is located in the connecting hole of ear-ring structure, connects Portion includes connecting portion main body and the rotation prevention portion being arranged in connecting portion main body, and rotation prevention portion is abutted with the limiting section of artificial vertebral body main body Coordinate.

Further, rotation prevention portion is arc block.

Further, connecting portion also includes locking mechanism, and connecting portion is spacing in connecting hole by locking mechanism.

Further, connecting portion main body has second towards the first end of longitudinally connected rod and away from longitudinally connected rod End, rotation prevention portion is arranged on the first end of connecting portion main body, and locking mechanism is arranged on the second end of connecting portion main body.

Further, locking mechanism includes the first fixture block and the second fixture block that are oppositely arranged, the first fixture block and the second fixture block Connecting portion main body is protruded from the radial direction in connecting portion main body, and there is deformation gap between the first fixture block and the second fixture block.

Further, locking mechanism also includes transition direct tube section, and the first end of transition direct tube section is connected with connecting portion main body, First fixture block and the second fixture block are connected on transition direct tube section and in transition direct tube section and protrude from transition straight tube in the radial direction Section, transition direct tube section has the grooving connected with deformation gap.

Further, the circumferential exterior surface of connecting portion main body is in conical surface shape, the external diameter of connecting portion main body by its first end extremely It is gradually reduced on the direction at the second end, the connecting hole of ear-ring structure is the bellmouth with connecting portion body adaptor.

Further, hook step is provided with the connecting hole of ear-ring structure, locking mechanism coordinates with hook step.

Further, it is provided with longitudinal hole in artificial vertebral body main body.

Further, artificial vertebral body fixed system also includes being arranged on the fixed plate of artificial vertebral body body end, fixed plate For being connected with Human Physiology centrum, fixing hole is provided with fixed plate.

Further, artificial vertebral body fixed system also includes pedicle screw, longitudinally connected rod and Human Physiology centrum it Between by pedicle screw connect.

Further, lateral connection nail is identical with vertebral pedicle bolt structure.

Further, artificial vertebral body main body is obtained according to patient CT data.

Using the technical solution of the utility model, artificial vertebral body fixed system includes that artificial vertebral body main body, two longitudinal directions connect Take over the baton, lateral connection is followed closely and connecting portion.Wherein, artificial vertebral body main body is arranged between adjacent Human Physiology centrum, two Longitudinally connected rod is separately positioned on the both sides of the spinous process of corpus vertebrae.By horizontal stroke between artificial vertebral body main body and each longitudinally connected rod Connected to connected nail.In the utility model, connecting portion is connected in artificial vertebral body main body, connecting portion have self tapping through hole or Screwed hole.When connecting portion has self tapping through hole, self tapping forms helicitic texture when lateral connection nail screws in self tapping through hole.Connecting portion has When having screwed hole, lateral connection nail coordinates with screwed hole.So, lateral connection nail is formed with self tapping helicitic texture or screw thread Can coordinate between hole closely, stable connection, and then cause stable connection between lateral connection nail and connecting portion, be not in spiral shell The situation of line abjection.So so that artificial vertebral body fixed system good stability of the present utility model, is not in the prior art Shifting phenomena.

Brief description of the drawings

The Figure of description for constituting the part of the application is used for providing being further understood to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings：

Fig. 1 shows the structural representation of the embodiment according to artificial vertebral body fixed system of the present utility model；

Fig. 2 shows the structural representation of the artificial vertebral body main body of the artificial vertebral body fixed system of Fig. 1；

Fig. 3 show the A-A of the artificial vertebral body main body fixed system of Fig. 2 to schematic cross-sectional view；

Fig. 4 shows the structural representation of the artificial vertebral body main body fixed system of Fig. 2；

Fig. 5 shows the structural representation of the connecting portion of the artificial vertebral body fixed system of Fig. 1；

Fig. 6 shows the structural representation of another angle of the connecting portion of Fig. 5；

Fig. 7 shows the schematic front view of the connecting portion of Fig. 5；

Fig. 8 shows the elevational schematic view of the connecting portion of Fig. 5；And

Fig. 9 shows the schematic cross-sectional view of the connecting portion of Fig. 5.

Wherein, above-mentioned accompanying drawing is marked including the following drawings：

1st, Human Physiology centrum；2nd, spinal cord；10th, artificial vertebral body main body；11st, ear-ring structure；111st, connecting hole；112nd, engage Step；12nd, limiting section；13rd, longitudinal hole；14th, fixed plate；20th, longitudinally connected rod；30th, lateral connection nail；40th, connecting portion； 41st, self tapping through hole；42nd, connecting portion main body；43rd, rotation prevention portion；50th, locking mechanism；51st, the first fixture block；52nd, the second fixture block；53rd, mistake Cross direct tube section；60th, pedicle screw.

Specific embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Fig. 1 shows the structural representation of the embodiment according to artificial vertebral body fixed system of the present utility model.Such as Fig. 1 institutes Show, the artificial vertebral body fixed system of the present embodiment includes：10, two longitudinally connected rod 20, lateral connection nails of artificial vertebral body main body 30 and connecting portion 40.Wherein, artificial vertebral body main body 10 is arranged between adjacent Human Physiology centrum 1, and two longitudinally connected Rod 20 is separately positioned on the both sides of the spinous process of Human Physiology centrum 1.Artificial vertebral body main body 10 is used for implantation replacement and is removed or scarce The host centrum sections of mistake will be formed and neighbouring Human Physiology centrum with recovering and rebuilding backbone physiology highly in future Bony union between 1.From figure 1 it appears that above-mentioned artificial vertebral body main body 10 and longitudinally connected rod 20 are separately positioned on The both sides of spinal cord 2.30 are followed closely between artificial vertebral body main body 10 and each longitudinally connected rod 20 by lateral connection to connect.Lateral connection is followed closely 30 are provided with the rod linkage section corresponding with longitudinally connected rod 20.Rod linkage section includes through-hole structure, and the through-hole structure can accommodate vertical Passed therethrough to pitman 20, and by locking device to the position relationship between through-hole structure itself and longitudinally connected rod 20 Locked.Preferably, the through-hole structure is opening slot structure.In the present embodiment, connecting portion 40 is connected to artificial vertebral body master On body 10, connecting portion 40 has self tapping through hole 41.Self tapping forms helicitic texture when lateral connection nail 30 screws in self tapping through hole 41.On The diameter of thread for stating helicitic texture is preferably 1 to 10mm.

Using the technical scheme of the present embodiment, coordinate tight between the helicitic texture that lateral connection nail 30 and self tapping are formed, Stable connection, and then stable connection between lateral connection nail 30 and connecting portion 40 is caused, be not in the situation of screw thread abjection.This Sample causes the artificial vertebral body fixed system good stability of the present embodiment, is not in shifting phenomena of the prior art.In this reality Apply in example, the material of connecting portion 40 is plastics, such as PE materials.

In other embodiment not shown in figure, connecting portion has screwed hole, and connecting portion is made up of metal material, horizontal Coordinate to connected nail and screwed hole and realize being stably connected between lateral connection nail and connecting portion.

Artificial vertebral body main body 10 is a cylindrical body, and the upper and lower ends of artificial vertebral body main body 10 are provided with vertebral fusion Face.Preferably, the cylindrical body shape of cross section of artificial vertebral body main body 10 is circle, Long Circle, annular, ellipse, sector, polygon Shape, kidney shape and the graphics shape combined by above-mentioned figure.Preferably, the surface in vertebral fusion face has microcellular structure. Above-mentioned microcellular structure is the multidirectional micro hole structure for including multiple interconnected micropores.Preferably, the hole of microcellular structure Aperture be 100 μm to 1800 μm.

In the technical scheme of the present embodiment, artificial vertebral body main body 10 is obtained according to patient CT data, thus can with it is adjacent Human Physiology centrum 1 carry out good structure matching, improve the stability of artificial vertebral body fixed system.

After artificial vertebral body fixed system is implanted human body, the vertebral fusion face of artificial vertebral body main body 10 of the fixed system with it is upper The soleplate of lower two adjacent host health centrums is brought into close contact.Following osteocyte grows into the microcellular structure on vertebral fusion face surface, So that the soleplate of centrum and the Bony union in vertebral fusion face, realize the long term stabilization of artificial vertebral body main body.The surface in fusion face Morphosis is obtained by patient CT three-dimensional reconstructions, therefore can carry out good structure matching with adjacent Human Physiology centrum 1. After artificial vertebral body main body 10 is implanted predetermined sections position, vertebral fusion face is by the end with neighbouring healthy centrum sections Tabulare matter realizes good fit, and its cylindrical surface is located within healthy centrum physiological surface.Between two vertebral fusion faces Position is provided with connecting portion 40.One or more connecting portions 40 can be provided with according to centrum length in artificial vertebral body main body 10.Even Socket part 40 can form the mechanical connection of secure rigid with lateral connection nail 30.The height of artificial vertebral body main body 10 will be designed to Per 0.5mm~15mm for a differential gradient is increased to adapt to different patient characteristic's needs.Preferably, artificial vertebral body main body 10 surface and/or it is internally provided with reinforcement structure.

Be provided with artificial vertebral body main body 10 it is multiple incline and through vertebral fusion upwardly or the fixed spiral shell that extends downwardly With neighbouring host centrum sections be connected to a fixed artificial vertebral body main body 10 through fixing hole by nail, centrum fixing screws. Preferably, the aperture of fixing hole is 2~10mm.Preferably, screw thread is provided with the inner hole wall of fixing hole, the pitch of the screw thread is 0.25~5mm.

Preferably, it is provided with bone grafting hole in artificial vertebral body main body 10.Bone grafting hole number is one or more, and aperture is 2mm To 30mm.It is mutually communicated between multiple bone grafting holes or is connected by microcellular structure.Microcellular structure is to include multiple mutually interconnection The multidirectional micro hole structure of logical micropore.Preferably, the aperture of the hole of microcellular structure is 100 μm to 1800 μm.Artificial vertebra Phosphor bodies 10 include microcellular structure, can so cause overall structure lightweight.For proof strength, at the middle part of microcellular structure It is provided with entity structure.

Preferably, when symptom is permitted, artificial vertebral body main body 10 can be fixed using only centrum fixing screws, without 30, pedicle screw 60 and longitudinally connected rod 20 are followed closely using lateral connection.

Preferably, artificial vertebral body main body 10, lateral connection nail 30, pedicle of vertebral arch screw in the present embodiment artificial vertebral body fixed system The parts such as nail 60, longitudinally connected rod 20 are made using medical metal and medical macromolecular materials.Such medical material mostly passes through Clinical experience for many years, it was confirmed that its good biology performance.

The mode that connecting portion 40 is connected in artificial vertebral body main body 10 has various, such as connected by fastener or viscous Connect.In the present embodiment, connecting portion 40 is linked together with artificial vertebral body main body 10 by connecting hole.Specifically, Fig. 2 shows The structural representation of the artificial vertebral body main body of the artificial vertebral body of Fig. 1, Fig. 4 shows the artificial vertebral body main body of the artificial vertebral body of Fig. 1 Structural representation.As shown in Figure 2 and Figure 4, in the present embodiment, artificial vertebral body main body 10 includes ear-ring structure 11, artificial vertebra Connecting portion 40 on body is located in the connecting hole 111 of ear-ring structure 11.Coordinated by the way of connecting hole so that connecting portion 40 Can realize quickly being connected between artificial vertebral body main body 10.Additionally, connecting portion 40 is located in the connecting hole 111 of ear-ring structure 11 In, lateral connection nail 30 can cause that the connection between connecting portion 40 and ear-ring structure 11 is even closer during screw-in.Together When, in order to prevent the connecting portion 40 during self tapping through hole 41 is screwed in of lateral connection nail 30 from rotating, such as Fig. 5 institutes Show, in the present embodiment, connecting portion 40 includes connecting portion main body 42 and the rotation prevention portion 43 being arranged in connecting portion main body 42, rotation stop Portion 43 abuts cooperation with the limiting section 12 of artificial vertebral body main body 10.Preferably, the aperture of ear-ring structure 11 is 5 to 20mm, its material Material selects plastics.Fig. 5 shows the connecting portion and the structural representation of locking mechanism of the artificial vertebral body fixed system of Fig. 1, and Fig. 9 shows The connecting portion of Fig. 5 and the schematic cross-sectional view of locking mechanism are gone out.As shown in Figures 5 to 9, in the present embodiment, rotation prevention portion 43 is arc Shape block.Arc block is easily worked, and anti-swirl effect is good.The limiting section 12 being arranged in connecting portion main body 42 is preferably semicircle knot Structure, can be brought into close contact between arc block and limiting section 12, then improve the stability of artificial vertebral body fixed system.

As shown in figure 5, in the present embodiment, connecting portion 40 also includes locking mechanism 50, connecting portion 40 passes through locking mechanism 50 It is spacing in connecting hole 111.Locking mechanism 50 can realize the locking to connecting portion 40 and ear-ring structure 11, prevent connecting portion 40 From exiting for connecting hole 111.

The implementation of locking mechanism 50 can have various, and in the present embodiment, locking mechanism 50 includes be oppositely arranged the The company of protruding from the radial direction of one fixture block 51 and the second fixture block 52, the first fixture block 51 and the second fixture block 52 in connecting portion main body 42 Socket part main body 42, has deformation gap between the first fixture block 51 and the second fixture block 52.Due to there is deformation gap, the first fixture block 51 Can be deformed during by connecting hole 111 with the second fixture block 52, be easy to locking mechanism 50 to pass through connecting hole 111.When Locking mechanism 50 is by the way that after connecting hole 111, the first fixture block 51 and the second fixture block 52 are reset to the position for protruding from connecting portion main body 42 Put, so that locking mechanism 50 can be fastened on one end of connecting hole 111, will not be exited from connecting hole 111.Such as Fig. 6 and Shown in Fig. 8, in the present embodiment, deformation gap is in-line opening.Certainly, as one skilled in the art will appreciate that between deformation Gap is not limited to said structure, provide change when the first fixture block 51 and the second fixture block 52 are by connecting hole 111 as long as ensure that Shape space.

Locking mechanism 50 also includes transition direct tube section 53, and the first end of transition direct tube section 53 is connected with connecting portion main body 42, First fixture block 51 and the second fixture block 52 are connected to protruding from the radial direction on transition direct tube section 53 and in transition direct tube section 53 Transition direct tube section 53, transition direct tube section 53 has the grooving connected with deformation gap.The effect of above-mentioned transition direct tube section 53 has two It is individual, the intensity of connecting portion 40 is on the one hand ensure that, prevent connecting portion main body 42 weak with the junction of locking mechanism 50.The opposing party Face facilitates withdrawing when being convenient machining.As shown in Figures 5 to 7, in the present embodiment, connecting portion main body 42 has towards longitudinal direction The first end of pitman 20 and the second end away from longitudinally connected rod 20, rotation prevention portion 43 are arranged on the first of connecting portion main body 42 End, locking mechanism 50 is arranged on the second end of connecting portion main body 42.Lateral connection nail 30 connects artificial vertebral body main body 10 and longitudinal direction When 20 connections of taking over the baton coordinate, due to said structure, lateral connection nail 30 is screwed in clamping lock from the rotation prevention portion 43 of connecting portion main body 42 Cause that the cooperation between connecting portion main body 42 and artificial vertebral body main body 10 is even closer in mechanism 50, in rotary course, it is not easy to Depart from.

As shown in Figures 5 to 7, in the present embodiment, the circumferential exterior surface of connecting portion main body 42 is in conical surface shape, connecting portion main body 42 external diameter is gradually reduced on the direction by its first end to the second end, and the connecting hole 111 of ear-ring structure 11 is and connecting portion master The bellmouth of the adaptation of body 42.The tapered shape of connecting portion main body 42 is, it is necessary to the bellmouth being adapted to therewith is attached.Said structure makes During lateral connection nail 30 screwed in the second end from the first end of connecting portion main body 42, connecting portion main body 42 and earrings knot Press tighter and tighter between structure 11, with reference to more and more tightr.

As shown in Figures 2 and 3, in the present embodiment, hook step 112 is provided with the connecting hole 111 of ear-ring structure 11, is blocked Latch mechanism 50 coordinates with hook step 112.Locking mechanism 50 is stuck on hook step 112 by connecting hole 111.Locking mechanism 50 Connecting hole 111 is only partially protrude through, certain protective effect can be played to locking mechanism 50 in the hole wall of connecting hole 111, and then Prevent locking mechanism 50 causes to be exited from connecting hole 111 because of deformation.

As shown in figure 3, in the technical scheme of the present embodiment, longitudinal hole 13 is provided with artificial vertebral body main body 10.On Stating longitudinal hole 13 can be with bone grafting, it is easy to synosteosis.

As shown in figure 1, in the present embodiment, artificial vertebral body fixed system also includes being arranged on the end of artificial vertebral body main body 10 Fixed plate 14, fixed plate 14 is used to be connected with Human Physiology centrum 1, and fixing hole is provided with fixed plate 14.The fixing hole is preferred It is screw hole.In surgical procedure, centrum fixing screws are screwed in upper and lower two adjacent host healths by doctor by above-mentioned fixing hole Human Physiology centrum 1 soleplate in, now the Human Physiology terminal plate of vertebral body of two adjacent host healths will fix spiral shell by centrum Nail is brought into close contact with the vertebral fusion face in artificial vertebral body main body 10.

As shown in figure 1, in the present embodiment, artificial vertebral body fixed system also includes pedicle screw 60, longitudinally connected rod Connected by pedicle screw 60 between 20 and Human Physiology centrum 1.Said structure enable longitudinally connected rod 20 with it is adjacent Healthy Human Physiology centrum 1 between link together, so effectively improve the stability of artificial vertebral body fixed system.

In the present embodiment, after pedicle screw 60 will form backbone by performing the operation with longitudinally connected rod 20 on rear side of backbone The fixation and supporting role of traffic stud bar system.Lateral connection nail 30 is used for artificial vertebral body main body 10 is mutual with longitudinally connected rod 20 Connection.Artificial vertebral body main body 10 is formed with neighbouring centrum by centrum fixing screws and is tightly fastened.Meanwhile, artificial vertebral body master Body 10 is further through lateral connection nail 30 and the Via Posterior Spinal Approach nail-stick system formed by pedicle screw 60 and longitudinally connected rod 20 Closely it is connected, so as to finally constitute artificial vertebral body fixed system.The centrum fixed system has high anti-rotation and prevents Dislocation ability, it is postoperative reliable stable being beneficial at once of backbone acquisition realize as early as possible artificial vertebral body main body with neighbouring vertebra Bony union between body.

In the technical scheme of the present embodiment, the operation of surgical for convenience reduces the kind of product and operation tool Class, lateral connection nail 30 is identical with the structure of pedicle screw 60.

A kind of surgical procedure of the utility model artificial vertebral body fixed system is：

1) the impaired host centrum sections that need to be substituted is taken out；

2) the artificial vertebral body main body 10 from appropriate height loads the impaired host centrum sections position being removed, necessary When be implanted into the bone piece and broken osseous granules of autologous bone or allograph bone in the bone grafting hole of artificial vertebral body main body 10, for inducing following bone Creeping for cell grows into；

3) from appropriate diameter and the centrum fixing screws of length, by centrum fixing screws by artificial vertebral body main body Fixing hole is screwed in the soleplate of upper and lower two adjacent host health centrum, and now two adjacent host health terminal plate of vertebral body will be by centrum Fixing screws are brought into close contact with the vertebral fusion face in artificial vertebral body main body 10；

4) pedicle screw 60 and longitudinally connected rod 20 are laid in Via Posterior Spinal Approach, to be determined adjacent healthy centrum Position；

5) lateral connection nail 30 is installed so that artificial vertebral body main body 10 is attached with the longitudinally connected rod 20 on rear side of backbone Positioning.

As can be seen from the above description, the utility model the above embodiments realize following technique effect：

1. across sections centrum customization, fix stably can be realized；

2. the design of profiling arch, according to normal person's feature, customizes out the physiological camber of backbone；

3. artificial vertebral body main body forms overall truss knot with screw-rod system by the firm connection of pedicle screw Structure；

4. screw-rod system adapts to the pedicle screw with any producer, using flexible；

5. with the upper hypocentrum contact surface bionic form for retaining, beneficial to effectively support；

6. customization artificial vertebral body main body upper and lower side has fixed plate to pass through multiple mode connects for screw, auxiliary with the upper hypocentrum for retaining It is fixed；

7. artificial vertebral body main body need to ensure there is enough intensity, and there is reinforcing rib structure inside；

8. customization artificial vertebral body main body upper and lower side should provide the loose structure of Bone Ingrowth；

9. connecting portion locking is flexible, installation effect is good, fix stably.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (14)

1. a kind of artificial vertebral body fixed system, it is characterised in that including：

Artificial vertebral body main body (10), is arranged between adjacent Human Physiology centrum (1)；

Two longitudinally connected rods (20), are separately positioned on the both sides of the spinous process of the Human Physiology centrum (1)；

Lateral connection follows closely (30), is connected between the artificial vertebral body main body (10) and each longitudinally connected rod (20)；

Connecting portion (40), is connected on the artificial vertebral body main body (10), the connecting portion (40) with self tapping through hole (41) or Person's screwed hole, when the connecting portion (40) is with self tapping through hole (41), lateral connection nail (30) screws in the self tapping Self tapping forms helicitic texture during through hole (41), and when the connecting portion (40) is with the screwed hole, the lateral connection follows closely (30) Coordinate with the screwed hole.

2. artificial vertebral body fixed system according to claim 1, it is characterised in that the artificial vertebral body main body (10) includes Ear-ring structure (11), the connecting portion (40) is located in the connecting hole (111) of the ear-ring structure (11), the connecting portion (40) including connecting portion main body (42) and the rotation prevention portion (43) being arranged on the connecting portion main body (42), the rotation prevention portion (43) Limiting section (12) with the artificial vertebral body main body (10) abuts cooperation.

3. artificial vertebral body fixed system according to claim 2, it is characterised in that the rotation prevention portion (43) is arc block.

4. artificial vertebral body fixed system according to claim 2, it is characterised in that the connecting portion (40) also includes clamping lock Mechanism (50), the connecting portion (40) is spacing in the connecting hole (111) by the locking mechanism (50).

5. artificial vertebral body fixed system according to claim 4, it is characterised in that the connecting portion main body (42) is with court First end to the longitudinally connected rod (20) and the second end away from the longitudinally connected rod (20), the rotation prevention portion (43) The first end of the connecting portion main body (42) is arranged on, the locking mechanism (50) is arranged on the of the connecting portion main body (42) Two ends.

6. artificial vertebral body fixed system according to claim 4, it is characterised in that the locking mechanism (50) is including relative The first fixture block (51) and the second fixture block (52) for setting, first fixture block (51) and second fixture block (52) are in the connection Portion's main body (42) protrudes from the connecting portion main body (42), first fixture block (51) and second fixture block in the radial direction (52) there is deformation gap between.

7. artificial vertebral body fixed system according to claim 6, it is characterised in that the locking mechanism (50) also included Direct tube section (53) is crossed, the first end of the transition direct tube section (53) is connected with the connecting portion main body (42), first fixture block (51) it is connected on the transition direct tube section (53) and in the radial direction of the transition direct tube section (53) with second fixture block (52) Protrude from the transition direct tube section (53) on direction, the transition direct tube section (53) with cutting that the deformation gap is connected Groove.

8. artificial vertebral body fixed system according to claim 2, it is characterised in that the circumference of the connecting portion main body (42) Outer surface is in conical surface shape, and the external diameter of the connecting portion main body (42) is gradually reduced on the direction by its first end to the second end, institute The connecting hole (111) for stating ear-ring structure (11) is the bellmouth being adapted to the connecting portion main body (42).

9. artificial vertebral body fixed system according to claim 4, it is characterised in that the connecting hole of the ear-ring structure (11) (111) hook step (112) is provided with, the locking mechanism (50) coordinates with the hook step (112).

10. artificial vertebral body fixed system according to claim 1, it is characterised in that on the artificial vertebral body main body (10) It is provided with longitudinal hole (13).

11. artificial vertebral body fixed systems according to claim 1, it is characterised in that the artificial vertebral body fixed system is also Fixed plate (14) including being arranged on artificial vertebral body main body (10) end, the fixed plate (14) with the human body for giving birth to Reason centrum (1) connection, fixing hole is provided with the fixed plate (14).

12. artificial vertebral body fixed systems according to claim 1, it is characterised in that the artificial vertebral body fixed system is also Including pedicle screw (60), the pedicle of vertebral arch is passed through between the longitudinally connected rod (20) and the Human Physiology centrum (1) Screw (60) is connected.

13. artificial vertebral body fixed systems according to claim 12, it is characterised in that the lateral connection follows closely (30) and institute State pedicle screw (60) structure identical.

14. artificial vertebral body fixed systems according to claim 1, it is characterised in that artificial vertebral body main body (10) root Obtained according to patient CT data.