CN207545270U

CN207545270U - A kind of support construction portion of POROUS TITANIUM Invasive lumbar fusion device

Info

Publication number: CN207545270U
Application number: CN201720003876.0U
Authority: CN
Inventors: 李翔; 吴忆峰; 陈文涛
Original assignee: Changzhou Waston Medical Appliance Co Ltd
Current assignee: Changzhou Huasen Medical Instrument Co.,Ltd.
Priority date: 2017-01-01
Filing date: 2017-01-01
Publication date: 2018-06-29
Anticipated expiration: 2027-01-01

Abstract

The utility model discloses a kind of positions of POROUS TITANIUM Invasive lumbar fusion device, and also as the support construction portion of POROUS TITANIUM Invasive lumbar fusion device, the support construction portion are used to undertake external load, and gap structure portion is used to guide new Bone Ingrowth.Upside, downside, front side, rear side and the right side in support construction portion are in openly to exposing outside, and front side, rear side and right side are respectively provided with the open space of triangle cylindricality.When the support construction portion is used for POROUS TITANIUM Invasive lumbar fusion device, the gap structure portion coordinated with it is on the upside of fusion device, downside, front side, rear side and right side in openly to exposing outside, effective growth for sclerotin etc. provides open growing space.The support construction portion of POROUS TITANIUM Invasive lumbar fusion device provided by the utility model not only can independently exercise the function of oneself, but also can cooperate with gap structure portion and achieve the effect that intervertebral is treated.

Description

A kind of support construction portion of POROUS TITANIUM Invasive lumbar fusion device

Technical field

The utility model is related to be used for the implantation material of vertebrae, belong to fixed network in intervertebral fusion, and in particular to a kind of The position of POROUS TITANIUM Invasive lumbar fusion device.

Background technology

The degenerative disc disease of the symptoms such as protrusion of lumber intervertebral disc and cervical spondylosis is a kind of common disease in modern society And frequently-occurring disease, seriously affect the quality of life of patient.Spinal fusion is one of most widely used technology of spinal surgery, main logical It crosses and establishes that backbone is stablized at once and implantation material ostosis effect, bone inductive effect, bone conduction effect promote backbone Bony union. At present, intervertebral fusion has become treatment lumbar instability, lumbar spinal stenosis, degenerated centrum olisthe, degenerated spine lateral bending, false pass The main means of the illness such as section and degenerative disc disease.Fusion device of the prior art is according to the mode of postoperative bone tissue growth Difference be broadly divided into two types, the first kind is provided with the fusion device of bone graft area, and the second class is not set the fusion device of bone graft area.

Chinese patent literature CN204683846U（Application number 201520112316.X）Disclose a kind of arc anterior lateral cervical approach Fusion device between spinal vertebral.The fusion device generally ellipsoidal structure, top and bottom are equipped with gradual wave rib tooth；Fusion device is also Symmetrically the through-hole of two approximate half-circulars set along the vertical direction is provided with, and two through-holes can facilitate implantation autologous bone. The device is designed using super-large diameter, can improve stability between centrum, can also improve the mechanical strength for bearing compression.The practicality For novel disclosed fusion device although having relatively stable support construction, the effect to regrow of sclerotin is not ideal enough. Fusion device disclosed in the document belongs to first kind fusion device.

Chinese patent literature CN201529176U（Application number 200920247060.8）It discloses a kind of for vertebral fusion When the embedded bone trabecula intervertebral fusion device that is implanted into, have by titanium alloy powder through the molding reticulated porous structures of electron beam melting, shape Shape can be wedge-shaped, rectangular, semicircle or triangle or is designed according to the concrete condition of patient's diseased region.The bone trabecula There is a through-hole in the centre of Invasive lumbar fusion device, and the aperture of reticular structure is 50-900 microns, porosity 40-90%, and surface is also There can be hydroxyapatite coating layer.Although fusion device disclosed in the utility model can reduce stress shielding band to a certain extent The adverse effect come, and single reticulated porous structures are used, but the effect to regrow of sclerotin is still not ideal enough.This article It offers disclosed fusion device and belongs to first kind fusion device.

204581605 U of Chinese patent literature CN（Application number 201520265012.7）A kind of Invasive lumbar fusion device is disclosed, Fusion device ontology including approximate cuboid is provided with the bone grafting hole penetrated through vertically, fusion device ontology in the fusion device ontology Upper and lower surface be evenly arranged with teeth；The front end face of fusion device ontology is gradually slipped over to contract by rounding marginal ray It crosses, the rear end face of fusion device ontology is provided with implantation location hole and implantation locating slot；The two sides hollow out of fusion device ontology runs through, Hollow part is provided with growth net.But since the surrounding of its ontology namely the upper side and lower side in the support construction portion of fusion device accounts for There is certain space, the growth of postoperative sclerotin is adversely affected.104706446 A of Chinese patent literature CN（Application Numbers 201510129242.5）Disclosed fusion device is also similar with the fusion device.Fusion device disclosed in two documents belongs to First kind fusion device.

Chinese patent literature CN102293693 A（Application number 201110146497.4）It discloses a kind of with bioactivity Porous titanium alloy people's neck Invasive lumbar fusion device and preparation method thereof.The standby Invasive lumbar fusion device of the invention patent system has and natural bone group Similar elasticity modulus is knitted, porous structure and its Internal biological active factors slow-released system can induce freshman bone tissue and grow into.It should Although patent solves the problems, such as that fusion device elasticity modulus matches and Bone Ingrowth with natural bone tissue, but this single more Pore structure lacks anti-fatigue ability, is easily broken off under the action of dynamic circulation stress, it is impossible to meet the needs of Long-Term Clinical.It should Fusion device disclosed in document belongs to the second class fusion device.

Utility model content

The purpose of this utility model is that solving the above problems, provide a kind of smaller to the growth of sclerotin etc. obstruction after surgery POROUS TITANIUM Invasive lumbar fusion device support construction portion.

Technical solution is used by the utility model solves its technical problem：The POROUS TITANIUM intervertebral fusion of the utility model The support construction portion of device is by a part for the fusion device of titanium alloy material one printing shaping by 3D printer, is tied with gap The support construction portion that structure portion is mutually fixed together in integrated is used to undertake external load；The upside in support construction portion, Downside, front side, rear side and right side are in openly to exposing outside, and front side, rear side and right side are respectively provided with the opening of triangle cylindricality Space.

The support construction portion includes the mounting portion, left socle, connecting portion and the right support that are sequentially connected；Mounting portion is equipped with The slot device set before and after a pair point and an instrument hole being located among a pair of of slot device along left and right to setting.

The support construction portion includes the mounting portion, left socle, connecting portion and the right support that are sequentially connected；Left socle and the right side Stent is using a pair of of cross harden structure of distribution setting up and down and the structure being connected by corresponding column, left socle and right branch It is connected between frame by connecting portion.

The connecting portion in the support construction portion includes front column, rear column, upper beam and bottom end rail；Front column is stood with rear It is connected between column by upper beam with bottom end rail；

Left socle has upper left frame, lower-left frame and left column；Left column is connected between upper left frame and lower-left frame；It is left Restocking and lower-left frame are in be set from left front to behind the right side and from the left back chi structure to before the right side simultaneously in cross harden structure It puts, and left column is located at upper left frame and the respective crossover sites of lower-left frame；

The rear and front end in the left side of upper left frame is connected with the right side on the top of mounting portion, the rear and front end in the left side of lower-left frame It is connected with the right side of the lower part of mounting portion；The right side front of upper left frame is connected with the upper left-hand of front column, the right side of upper left frame Rear end is connected with the upper left-hand of rear column；The front end on the right side of lower-left frame is connected with the lower left side of front column, lower-left frame The rear end on right side is connected with the lower left side of rear column；So that the front and rear sides of left socle are respectively provided with the opening of triangle cylindricality Space；

Right support has upper right frame, bottom right frame and right central post；Right central post be connected to upper right frame and bottom right frame 14-2 it Between；Upper right frame and bottom right frame are in from left front to behind the right side and from the left back cross knot to before the right side simultaneously in cross harden structure Structure is set, and right central post is located at upper right frame and the respective crossover sites of bottom right frame；

The front end in the left side of upper right frame is connected with the upper right of front column, the rear end in the left side of upper right frame and rear column Upper right is connected；It is connected on the right side of the front end in the left side of bottom right frame and the lower part of front column, the rear end in the left side of bottom right frame is with after It is connected on the right side of the lower part of column；So that the front and rear sides and right side of right support are respectively provided with the open space of triangle cylindricality.

The support construction portion is additionally provided with right front column and right rear column；Right front column is connected to the right front ends of upper right frame Between the right front ends of bottom right frame, right rear column is connected between the right rear end of upper right frame and the right rear end of bottom right frame.

The length L in the support construction portion is 22mm to 36mm, and wide W is 8mm to 14mm, and height H is 3mm to 18mm.

The good effect that the utility model has：

（1）The POROUS TITANIUM Invasive lumbar fusion device in the support construction portion with the utility model by the utility model support construction Portion has excellent antifatigue mechanical property for the mechanical support at fusion device implantation initial stage；And coordinate simultaneously with good Elasticity and toughness gap structure portion can promote the Bony union of upper hypocentrum and POROUS TITANIUM fusion device.Phase after the implantation, with Regeneration of the bone tissue in microscopic void and the completion rebuild, form ideal bone-POROUS TITANIUM embedded structure, with the utility model The physiological loads at the support construction shared backbone position of offer, the Invasive lumbar fusion device of this kind of support construction can be used effectively In the treatment of clinically degenerative disc disease.

（2）The support construction portion of fusion device provided by the utility model is centrally located, and gap structure portion is then set It is accounted at the position in most of region on the periphery at support construction position, and the exposing external world of gap structure portion in the up-down direction The major part of the upper and lower side of fusion device, when preferably using the left and right stent of cross harden structure as the agent structure in support construction portion When, structural strength is not only ensured, and form front and rear and rear side open space, gap structure portion up and down and be then located at institute In the open space stated, it can not only effectively ensure that Invasive lumbar fusion device enters internal mechanical support, and melting early period After clutch implantation human body, effective growth for sclerotin etc. provides open growing space, is more beneficial to fusion device involvement Intervertebral.

Description of the drawings

Fig. 1 is a kind of stereoscopic schematic diagram using the fusion device in the support construction portion of the Invasive lumbar fusion device of the utility model.

Fig. 2 is the stereoscopic schematic diagram in the support construction portion in Fig. 1.

Fig. 3 is the schematic top plan view of Fig. 2.

Fig. 4 be from the forward observation of Fig. 2 when schematic diagram.

Fig. 5 is the stereoscopic schematic diagram of the gap structure part in Fig. 1.

Fig. 6 is the schematic diagram of the positive tetrahedron structural unit sub-assembly in the gap structure portion in Fig. 5.

Reference numeral in above-mentioned attached drawing is as follows：

Support construction portion 1, gap structure portion 2, mounting portion 11, slot device 11-1, instrument hole 11-2, left socle 12, upper left Frame 12-1, lower-left frame 12-2, left column 12-3, connecting portion 13, front column 13-1, rear column 13-2 right supports 14, upper right frame 14-1, bottom right frame 14-2, right central post 14-3, right front column 15, right rear column 16, long L, wide W, high H, titanium column 21, long l are wide W, high h.

Specific embodiment

It elaborates below in conjunction with the accompanying drawings to the embodiment of the utility model：Following embodiment is with the utility model skill Implemented under premised on art scheme, give detailed embodiment and specific operating process, but the guarantor of the utility model Shield range is not limited to following embodiments.

（Embodiment 1）

As shown in Figure 1, titanium is is closed by 3D printer by the support construction portion 1 of the POROUS TITANIUM Invasive lumbar fusion device of the present embodiment A part for the fusion device of golden material one printing shaping is mutually fixed together use with gap structure portion 2 in integrated In undertaking external load；Upside, downside, front side, rear side and the right side in support construction portion 1 are in openly to exposing outside, and preceding Side, rear side and right side are respectively provided with the open space of triangle cylindricality, and are communicated inside the open space.

As described in Figure 2, the support construction portion 1 includes the mounting portion 11, left socle 12,13 and of connecting portion that are sequentially connected Right support 14.Mounting portion 11 is equipped with a pair of point of front and rear slot device 11-1 set and one is located at a pair of of device along left and right to setting Instrument hole 11-2 among tool slot.

Left socle 12 and right support 14 using a pair of of cross harden structure of distribution setting up and down and pass through corresponding column （Left column 12-3 and right central post 14-3）It is connected, is connected between left socle 12 and right support 14 by connecting portion 13, support The connecting portion 13 of structural portion 1 includes front column 13-1, rear column 13-2, upper beam 13-3 and bottom end rail 13-4；Front column 13-1 It is connected between rear column 13-2 by upper beam 13-3 with bottom end rail 13-4.

Left socle 12 has upper left frame 12-1, lower-left frame 12-2 and left column 12-3.Left column 12-3 is connected to a left side Between restocking 12-1 and lower-left frame 12-2.Upper left frame 12-1 and lower-left frame 12-2 is in from left front simultaneously in cross harden structure After to the right side and from the left back chi structure setting to before the right side, and left column 12-3 is connected to upper left frame 12-1 and lower-left frame Between the respective crossover sites of 12-2.

The rear and front end in the left side of upper left frame 12-1 is connected with the right side on the top of mounting portion 11, the left side of lower-left frame 12-2 Rear and front end be connected with the right side of the lower part of mounting portion 11.

The rear and front end on the right side of upper left frame 12-1 is connected with the left side on the top of connecting portion 13 namely upper left frame 12-1 Right side front is connected with the upper left-hand of front column 13-1, the right side rear end of upper left frame 12-1 and the upper left-hand of rear column 13-2 It is connected.The front end on the right side of lower-left frame 12-2 is connected with the lower left side of front column 13-1, the rear end on the right side of lower-left frame 12-2 It is connected with the lower left side of rear column 13-2；So that the front and rear sides of left socle 12 are respectively provided with the open empty of triangle cylindricality Between.

Right support 14 has upper right frame 14-1, bottom right frame 14-2 and right central post 14-3.Right central post 14-3 is connected to the right side Between restocking 14-1 and bottom right frame 14-2.Upper right frame 14-1 and bottom right frame 14-2 is in from left front simultaneously in cross harden structure After to the right side and from the left back chi structure setting to before the right side, and right central post 14-3 is connected to upper right frame 14-1 and bottom right frame Between the respective crossover sites of 14-2

The rear and front end in the left side of upper right frame 14-1 is connected with the right side on the top of connecting portion 13 namely upper right frame 14-1 The front end in left side is connected with the upper right of front column 13-1, the rear end in the left side of upper right frame 14-1 and the top of rear column 13-2 Right side is connected.The rear and front end in the left side of bottom right frame 14-2 is connected with the right side of the lower part of connecting portion 13 namely bottom right frame 14-2 The front end in left side and the lower part of front column 13-1 on the right side of be connected, under the rear end in the left side of bottom right frame 14-2 and rear column 13-2 It is connected on the right side of portion.So that the front and rear sides and right side of right support 14 are respectively provided with the open space of triangle cylindricality.

Support construction portion 1 is additionally provided with right front column 15 and right rear column 16, and right front column 15 is connected to upper right frame 14-1's Between right front ends and the right front ends of bottom right frame 14-2, right rear column 16 is connected to the right rear end of upper right frame 14-1 and bottom right frame 14-2 Right rear end between.

The front and rear side of the left socle 12 in the support construction portion 1, the front and rear side of right support 14 and right side are in open Setting, the design of this support construction can either effectively ensure that Invasive lumbar fusion device enters internal mechanical support early period, simultaneously The design of four-bladed vane support provides open structure design while support construction surface maximum mechanical strength is ensured Space, ensure that after fusion device is implanted into human body, possibility that sclerotin is grown according to open mode is more beneficial to melt Clutch incorporates intervertebral.

See Fig. 3, the length L of the mechanical support structural portion 1 in the present embodiment is 28mm, and wide W is 11mm.

See Fig. 4, the height H of the mechanical support structural portion 1 in the present embodiment is 4mm, the appearance of the upside in support construction portion 1 The intermediate position in face is higher, left and right sides position is relatively low, and arc-shaped curved surface is set, and belongs to and meets the outer of the physiology curved surface between cone Surface.Corresponding, the intermediate position of the outer surface of the downside in support construction portion 1 is downwardly projecting more, left and right sides position Less, and also arc-shaped curved surface setting is protruded, belongs to the outer surface for meeting the physiology curved surface between cone.

（Application examples 1）

As shown in Figure 1, the Invasive lumbar fusion device of the application example is by titanium alloy material one printing shaping by 3D printer Structural member.The fusion device is divided into support construction portion 1 and gap structure portion 2 according to the difference of role.Support construction portion 1 with Gap structure portion 2 is mutually fixed together in integrated.Support construction portion 1 is used to undertake external load, gap structure portion 2 For guiding new Bone Ingrowth；The volume in support construction portion 1 accounts for the 10% of fusion device total volume.

As described in Figure 2, the structure that the support construction portion 1 is described using embodiment 1.

See Fig. 5 and Fig. 6, the gap structure portion 2 in the application example is by being in the diamond lattic structure of positive tetrahedron structure substantially Cell voids combination form, be connected according to the connection mode of carbon atom in diamond lattic structure between cell voids.Wherein, structure The titanium column 21 of the cuboid columnar identical by 4 root long degree of unit connects and composes namely each according to the structure in positive tetrahedron The mutual angle of titanium column 21 is 109 degree 28 and divides.The length of every titanium column 21 is 0.5mm, and width and thickness are 0.2mm. The porosity in gap structure portion 2 is 80%.Connection mode in this way between cell voids according to carbon atom in diamond structures is similar Connection mode design, so as to assign the POROUS TITANIUM with certain elasticity, enough osseointegration characters by conventional titanium alloy fusion device （Refer to that the bone by titanium and patient is combined together, the compatible performance of both osteocyte and titanium）And PEEK material fusion devices Low elastic modulus is integrated in one, and compensates for conventional titanium alloy alloy fusion device and the respective deficiency of PEEK material fusion devices.

The specific implementation step for preparing the fusion device of above structure is as follows：

1. utilize CAD（CAD）Software carries out the configuration design of Invasive lumbar fusion device, can be with people's vertebra The anatomical contours of body match；The CAD software is Unigraphics, Pro/E, Solidworks etc..

2. matching mechanical support structure is designed in fusion device appearance profile, 1 support construction volume of the present embodiment The 10% of fusion device total volume is accounted for, mechanical support structure CAD data are stored with independent STL data formats.

3. designing micropore structure in the remaining space of removal mechanical support structure, pore-size is 200 μm, microcosmic Pore structure CAD data is stored with independent STL data formats.

4. it is soft that the STL data of mechanical support structure and micropore structure STL data are directed respectively into hierarchy slicing processing Part, and mechanics support construction and relative tertiary location during micropore structure design are kept, then, handled using hierarchy slicing Software carries out hierarchy slicing processing to mechanical support structure and micropore structure STL data, be converted into respectively two it is independent 2-D data message file.

5. the independent 2-D data message file of mechanical support structure and micropore structure two is imported 3D printing to set Standby control software keeps relative tertiary location when mechanics support construction and micropore structure design, corresponding 3D is set to beat Print technological parameter.

6. using titanium alloy powder as raw material, carry out integrated 3D printing and make, obtain POROUS TITANIUM Invasive lumbar fusion device.

Wherein, it is corresponding to the 3D printing manufacture craft parameter of mechanical support structure：The power of laser is 160W, scanning speed It spends for 1000mm/s, powdering thickness is 0.02mm, sweep span：80μm.Corresponding to micropore structure 3D printing manufacture craft Parameter is：The power of laser is 100W；Sweep speed is 200mm/s；Powdering thickness is 0.02mm；Sweep span：160μm.It adopts With this process design parameter, two kinds of structures can be made not only to be individually present but also cooperate, form the more of complete composite construction Hole titanium Invasive lumbar fusion device.

Claims

1. a kind of support construction portion of POROUS TITANIUM Invasive lumbar fusion device, for by 3D printer by titanium alloy material one printing shaping Fusion device a part, it is characterised in that：With gap structure portion（2）The support knot being mutually fixed together in integrated Structure portion（1）For undertaking external load；Support construction portion（1）Upside, downside, front side, rear side and right side in openly to It exposes outside, and front side, rear side and right side are respectively provided with the open space of triangle cylindricality.

2. the support construction portion of POROUS TITANIUM Invasive lumbar fusion device according to claim 1, it is characterised in that：The support knot Structure portion（1）Including the mounting portion being sequentially connected（11）, left socle（12）, connecting portion（13）And right support（14）；Mounting portion（11） Equipped with a pair of point of front and rear slot device set（11-1）With edge left and right being located among a pair of of slot device to setting Instrument hole（11-2）.

3. the support construction portion of POROUS TITANIUM Invasive lumbar fusion device according to claim 1, it is characterised in that：The support knot Structure portion（1）Including the mounting portion being sequentially connected（11）, left socle（12）, connecting portion（13）And right support（14）；Left socle（12） And right support（14）Using a pair of of cross harden structure of distribution setting up and down and the structure being connected by corresponding column, left branch Frame（12）With right support（14）Between pass through connecting portion（13）It is connected.

4. the support construction portion of POROUS TITANIUM Invasive lumbar fusion device according to claim 3, it is characterised in that：The support knot Structure portion（1）Connecting portion（13）Including front column（13-1）, rear column（13-2）, upper beam（13-3）And bottom end rail（13-4）； Front column（13-1）With rear column（13-2）Between pass through upper beam（13-3）And bottom end rail（13-4）It is connected；

Left socle（12）With upper left frame（12-1）, lower-left frame（12-2）With left column（12-3）；Left column（12-3）Even It is connected on upper left frame（12-1）With lower-left frame（12-2）Between；Upper left frame（12-1）With lower-left frame（12-2）It is in cross harden structure, And simultaneously it is in and the left column from left front to behind the right side and from the left back chi structure setting to before the right side（12-3）Positioned at upper left Frame（12-1）With lower-left frame（12-2）At respective crossover sites；

Upper left frame（12-1）Left side rear and front end and mounting portion（11）The right side on top be connected, lower-left frame（12-2）A left side The rear and front end of side and mounting portion（11）The right side of lower part be connected；Upper left frame（12-1）Right side front and front column（13-1） Upper left-hand be connected, upper left frame（12-1）Right side rear end and rear column（13-2）Upper left-hand be connected；Lower-left frame（12- 2）Right side front end and front column（13-1）Lower left side be connected, lower-left frame（12-2）Right side rear end and rear column （13-2）Lower left side be connected；So that left socle（12）Front and rear sides be respectively provided with the open space of triangle cylindricality；

Right support（14）With upper right frame（14-1）, bottom right frame（14-2）With right central post（14-3）；Right central post（14-3）Even It is connected on upper right frame（14-1）Between the frame 14-2 of bottom right；Upper right frame（14-1）With bottom right frame（14-2）In cross harden structure, and Simultaneously in from left front to behind the right side and from the left back chi structure setting to before the right side, and right central post（14-3）Positioned at upper right frame （14-1）With bottom right frame（14-2）At respective crossover sites；

Upper right frame（14-1）Left side front end and front column（13-1）Upper right be connected, upper right frame（14-1）Left side Rear end and rear column（13-2）Upper right be connected；Bottom right frame（14-2）Left side front end and front column（13-1）Lower part Right side is connected, bottom right frame（14-2）Left side rear end and rear column（13-2）Lower part on the right side of be connected；So that right support （14）Front and rear sides and right side be respectively provided with the open space of triangle cylindricality.

5. the support construction portion of POROUS TITANIUM Invasive lumbar fusion device according to claim 4, it is characterised in that：The support knot Structure portion（1）It is additionally provided with right front column（15）With right rear column（16）；Right front column（15）It is connected to upper right frame（14-1）The right side before End and bottom right frame（14-2）Right front ends between, right rear column（16）It is connected to upper right frame（14-1）Right rear end and bottom right frame （14-2）Right rear end between.

6. the support construction portion of POROUS TITANIUM Invasive lumbar fusion device according to claim 1, it is characterised in that：The support knot Structure portion（1）Length L for 22mm to 36mm, wide W is 8mm to 14mm, and height H is 3mm to 18mm.