CN203749649U - Inflatable interbody fusion cage - Google Patents
Inflatable interbody fusion cage Download PDFInfo
- Publication number
- CN203749649U CN203749649U CN201420074686.4U CN201420074686U CN203749649U CN 203749649 U CN203749649 U CN 203749649U CN 201420074686 U CN201420074686 U CN 201420074686U CN 203749649 U CN203749649 U CN 203749649U
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- fusion device
- inflatable
- inflation
- hole
- expansion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model provides an inflatable interbody fusion cage, which comprises a fusion cage body with a similar cuboid shape, an inflation lock disposed inside the fusion cage body and an adjustment pull rod and a lock cap which are connected to the inflation lock in a threaded manner, wherein the fusion cage body is constituted of an adjustment end and an inflation part, the inflation part is constituted of an upper inflation body and a lower inflation body which are opened, an implantation end is disposed on the opened end of the inflation part, the upper surface of the upper inflation body and the lower surface of the lower inflation body are respectively equipped with a bearing face which is equipped with anti-skid teeth and coincides with the curvature of a body end plate, bone grafting holes which are corresponding up and down are respectively formed in the centers of the upper inflation bodies and the lower inflation bodies, two sides of the inflation part, which are perpendicular to the beating face, respectively form an arc adjustment groove, and the inner diameter of the arc adjustment groove is reduced in a stepped manner from the implantation end to the adjustment end. According to the inflatable interbody fusion cage in the utility model, the stepped arc adjustment groove is used to realize adjustment in different shifts, an interbody fusion operation can be quantized easily, use and operations become convenient, and the physical lordosis of lumbar vertebra can be recovered ideally.
Description
Technical field
This utility model relates to medical instruments field, more specifically, relates to a kind of inflatable Invasive lumbar fusion device for intervertebral fusion operation.
Background technology
Lumbar intervertebral fusion is generally used for treating the diseases such as degenerative lumbar and shakiness, can recover intervertebral height, expands intervertebral foramina, supports front pillar and increases Fusion levels stability.Late 1970s has started the research of Invasive lumbar fusion device, after be used to treat that lumbar degenerative changes and the disease such as lumbar instability, this Therapeutic Method not only can recover the height of intervertebral, has expanded intervertebral foramina, also strengthen the support of front pillar simultaneously, increased the stability of Fusion levels.
In recent years, the Invasive lumbar fusion device of many kinds of difformities and material is used in clinical, and wherein conventional be cylindric threaded fusion device and the large class of box-shaped fusion device two.Along with the popularization of clinical practice and the progress of theoretical research, find gradually existing Invasive lumbar fusion device Shortcomings.
The supporter of cylindric threaded fusion device is cylindrical, and there is helicitic texture on surface.Chinese utility model patent CN2361245Y discloses a kind of adjustable screw type intervertebral fusion device, this fusion device by elastic titanium alloy boxes and baskets and in m-polyethylene vertebral pulp form, elastic titanium alloy boxes and baskets are cylindric hollow-core construction, the screw thread that has both sides to be interrupted in outer tubular wall, the central authorities of this discontinuities tube wall are provided with window, respectively have several interlaced otch on the tube wall at window two ends.Yet, circumgyration incision effect when this cylindric screw thread Invasive lumbar fusion device is implanted is subsided and disc height decline compared with causing greatly and easily to the destruction of soleplate, and the volume of fusion device own is large, as more in the excision of zygapophysial joints and affect Lumbar Fusion sections stability on the original rock-steady structure in rear during implantation.In addition, columned melting interface also easily produces obvious fine motion, even along screw thread, moves, and adds that own subsidiary hole and soleplate contact area are little, thereby easily causes intervertebral fusion failure and displacement.
The supporter of box-shaped fusion device is cuboid framework, and volume is compared little with cylindric threaded fusion device, easily implants.The published patent application CN103263309A of China discloses a kind of box-shaped fusion device, and this fusion device main part is provided with from rear lower to front upper oblique groove, and oblique groove is used for coordinating the oblique screw of pedicle of vertebral arch with fixing fusion device.The disclosed box-shaped fusion device of this patent documentation is identical with traditional box-shaped fusion device, is all need to add pedicle screw system to be fixed.Traditional box-shaped fusion device and the contact surface of soleplate are smooth, or it is anti-skidding to rely on Odontoid process to get up, and a little less than the bed knife of interface, can not provide enough self-stability energy, can only support as passive front pillar.In addition, traditional box-shaped fusion device need to add pedicle screw system and fix, and this is also current the most conventional modus operandi clinically.Because needs add pedicle screw system, be fixed, therefore expanded operation wound and increased surgery cost.In addition, vertebral fusion is postoperative, and it is undesirable that lumbar vertebra physiology lordosis recovers.
From the above, cylindric threaded fusion device and the existing box-shaped fusion device lumbar stability in anteflexion and left and right lateroflexion direction increases, but after can not increasing, stretch stability, the stability of these two kinds of fusion devices in direction of rotation also all obviously reduces in addition.Along with the development of Minimally Invasive Surgery, in order to be conducive to implant Invasive lumbar fusion device by less invasive techniques, the structure of Invasive lumbar fusion device and configuration design are had higher requirement.Therefore, need a kind of have strong interface stability performance and height self-stability can expanding lumbar intervertebral fusion device, and this Invasive lumbar fusion device do not need additional pedicle screw to be fixed, so that intervertebral fusion operation Wicresoft.
Utility model content
In order to address the above problem, this utility model provides a kind of inflatable Invasive lumbar fusion device for intervertebral fusion operation.Described inflatable Invasive lumbar fusion device regulates by adopting stepped arc regulating tank can realize stepping, being convenient to intervertebral fusion operation quantizes, and use easy and simple to handle, dependable performance, can make the gap of vertebral body front pillar front end be greater than the gap of front pillar rear end, recover lumbar vertebra physiology lordosis desirable, obtain more effective and safer Wicresoft's intervertebral fusion operation.
According to inflatable Invasive lumbar fusion device of the present utility model, comprise: fusion device main body, described fusion device main body has approximate rectangular shape, fusion device main body is comprised of interconnective adjusting termination and bulge, regulate the inner end adjacent with bulge of termination to be provided with adjustment hole, regulate the outer end of termination to be provided with locking screw thread hole, bulge consists of opening-like upper expander and lower expander, the opening of bulge has implantation termination, the lower surface of the upper surface of upper expander and lower expander has respectively the weight-bearing surface matching with human body soleplate curvature, weight-bearing surface is provided with anti-slop serrations along the length direction of fusion device main body respectively, and the central authorities of upper expander and lower expander are formed with respectively the bone grafting hole of upper and lower correspondence, two sides perpendicular to weight-bearing surface of bulge form arc regulating tank along described length direction respectively, arc regulating tank is communicated with bone grafting hole, and from implanting termination, to regulating, termination is stepped to be reduced the internal diameter of arc regulating tank, expansion lock, described expansion lock is arranged on the inside of fusion device main body, and comprise expansion-head and from the both sides of expansion-head, be parallel to two extensions that length direction extends respectively, the diameter that expansion-head has the cylinder form corresponding with the shape of the maximum gauge portion of arc regulating tank and an expansion-head is less than the diameter of maximum gauge portion, so that expansion-head is engaged in arc regulating tank, adjusting yoke, described adjusting yoke has drawhead and thread rod part, and the diameter of drawhead is less than the diameter of adjustment hole, and thread rod part is threaded onto expansion lock, and lock nut, described lock nut is provided with the external screw thread for being meshed with locking screw thread hole.
Preferably, the distance between two extensions is less than the width in bone grafting hole.Expansion lock also comprises regulating block, and regulating block is connected between the end of two extensions in hinged way.The central authorities of regulating block are provided with adjusting screwed hole, and thread rod part is threaded with regulating screwed hole.
Alternatively, drawhead can have hexagonal internal thread hole.
Alternatively, lock nut can have hexagonal internal thread hole.
Implant termination and can there is the circular arc of being, trapezoidal or oval-shaped outer shape.
Bone grafting hole can have rectangular shape.
Alternatively, the neighboring in locking screw thread hole can be provided with cross locating slot.
Accompanying drawing explanation
Above-mentioned and other side of the present utility model and feature are by from presenting the explanation of embodiment is clear below in conjunction with accompanying drawing, wherein:
Fig. 1 is the assembled state axonometric chart according to the inflatable Invasive lumbar fusion device of this utility model embodiment;
Fig. 2 is the axonometric chart of structure that shows the fusion device main body of described inflatable Invasive lumbar fusion device;
Fig. 3 is the profile of the fusion device main body of described inflatable Invasive lumbar fusion device;
Fig. 4 is the axonometric chart of the expansion lock of described inflatable Invasive lumbar fusion device;
Fig. 5 is the axonometric chart of the adjusting yoke of described inflatable Invasive lumbar fusion device;
Fig. 6 is the axonometric chart of the lock nut of described inflatable Invasive lumbar fusion device; And
Fig. 7 is the assembled state axonometric chart according to the inflatable Invasive lumbar fusion device of this utility model embodiment.
The specific embodiment
Describe with reference to the accompanying drawings illustrative of the present utility model, non-limiting example in detail, to being further described according to inflatable Invasive lumbar fusion device of the present utility model.
Particularly, referring to Fig. 1 and Fig. 2, according to the inflatable Invasive lumbar fusion device of this utility model embodiment, comprise fusion device main body 1, expansion lock 2, adjusting yoke 3 and lock nut 4.Fusion device main body 1 has the shape of approximate cuboid, and expansion lock 2 and adjusting yoke 3 are arranged on the inside of fusion device main body 1, and lock nut 4 is connected to one end of fusion device main body 1 so that expansion lock and adjusting yoke are locked in described fusion device main body.
Next, further describe with reference to the accompanying drawings the structure according to inflatable Invasive lumbar fusion device of the present utility model.
Fig. 2 shows that, according to the axonometric chart of the structure of the fusion device main body of the inflatable Invasive lumbar fusion device of this utility model embodiment, Fig. 3 is the profile of fusion device main body.Fusion device main body 1 forms (as shown in Figure 1) by interconnective adjusting termination 11 and bulge 12.Regulate the inner end adjacent with bulge 12 of termination 11 to be provided with adjustment hole 110, and regulate the outer end of termination 11 to be provided with locking screw thread hole 111.Bulge 12 consists of opening-like upper expander 121 and lower expander 122, and the opening of bulge 12 has the termination 123 of implantation.Preferably, implantation termination 123 can have cylindrical, trapezoidal or oval-shaped outer shape so that implant.The outer shape that is noted that implantation described herein termination is only exemplary, and does not mean to be limited to this, and the outer shape of implanting termination can adopt any shape of being convenient to implantation.The lower surface of the upper surface of upper expander 121 and lower expander 122 has respectively the weight-bearing surface 120 matching with human body soleplate curvature, for supporting human body soleplate.Weight-bearing surface 120 is provided with anti-slop serrations 124 along the length direction of fusion device main body 1 respectively, and described anti-slop serrations is being fixed on during fusion on the soleplate of hypocentrum, to play the effect fixedly securing from steady, thereby prevents threaded fusion cage displacement.The central authorities of upper expander 121 and lower expander 122 are formed with respectively the bone grafting hole 125 of upper and lower correspondence, can obtain thus larger space, bone grafting hole, thereby make dependable performance.In the embodiment shown in Figure 2, for example, bone grafting hole 125 has rectangular shape, but the shape in bone grafting hole is not limited to this.According to embodiment of the present utility model, two sides perpendicular to weight-bearing surface of bulge 12 alongst form respectively arc regulating tank 126, this arc regulating tank is communicated with bone grafting hole, and the internal diameter of arc regulating tank 126 from implanting termination 123, to regulating, termination 11 is stepped to be reduced.
Fig. 4 is the axonometric chart that schematically shows the structure of the expansion lock 2 that is arranged on fusion device body interior.Expansion lock 2 comprises expansion-head 21 and from the both sides of expansion-head 21, is parallel to respectively two extensions 22 of the length direction extension of fusion device.Expansion-head 21 has the cylinder form corresponding with the shape of the maximum gauge portion of arc regulating tank 126, and the diameter of expansion-head is less than the diameter of maximum gauge portion, so that expansion-head is engaged in arc regulating tank.
Referring to Fig. 5, adjusting yoke 3 has drawhead 31 and thread rod part 32.The diameter of drawhead 31 is less than the diameter of the adjustment hole 110 of fusion device main body 1, to can adjusting yoke 3 be placed into by adjustment hole 110 to the inside of fusion device main body 1.Thread rod part 32 is threaded onto expansion lock 2.Alternatively, drawhead 31 can have hexagonal internal thread hole 310, this hexagonal internal thread hole can match with the hexagonal screw rod of standard, makes it possible to carry out rotating rod head by the hexagonal screw rod of standard, thereby drives adjusting yoke to regulate the opening width of inflatable Invasive lumbar fusion device.
Lock nut 4 is provided with the external screw thread 41 for being meshed with locking screw thread hole 111, as shown in Figure 6.Alternatively, lock nut 4 can have hexagonal internal thread hole 42, and this hexagonal internal thread hole can match with the hexagonal screw rod of standard, makes it possible to rotate lock nut by the hexagonal screw rod of standard, so that expansion lock and adjusting yoke are locked in fusion device main body.
According to an exemplary embodiment of the present utility model, expansion lock 2 also comprises regulating block 23.Distance between two extensions 22 of expansion lock 2 is less than the width in bone grafting hole.Regulating block 23 is connected between the end of two extensions 22 in hinged way, thereby can be with respect to extension 22 rotations.The central authorities of regulating block 23 are provided with and regulate screwed hole 24, and the thread rod part 32 of adjusting yoke 3 is threaded with regulating screwed hole 24.
Below, will illustrate according to the operating process of the inflatable Invasive lumbar fusion device of this utility model embodiment.First, the regulating block of the expansion lock of fusion device 2 23 is rotated to the extension 22 that is parallel to expansion lock.Then, via arc regulating tank 126, expansion lock 2 is put into fusion device from the side of fusion device main body 1, now the cylindrical expansion-head 21 of expansion lock is placed in the maximum gauge portion of arc regulating tank, as shown in Figure 1 and Figure 7.Then, by regulating block 23 rotation to perpendicular to extension 22, then via adjustment hole 110 by adjusting yoke 3 from regulating termination 11 to put into fusion device main body 1, thread rod part 32 is screwed in and is regulated in screwed holes 24, thereby adjusting yoke 3 is connected to expansion lock 2.After Invasive lumbar fusion device of the present utility model is implanted to lumbar vertebra, can use hexagonal screw rod rotation adjusting yoke 3, in arc regulating tank 126, towards adjusting termination 11, pull expansion lock 2, thereby expander 121 and lower expander 122 are progressively opened.That is to say, can stepping regulate the opening width of upper expander and lower expander according to fusion device of the present utility model by stepped arc regulating tank 126, for example, one grade of every tune opens 4 degree, thereby pressurization support is between the soleplate of upper hypocentrum.After progressively adjusting is expanded and is locked into suitable opening width, by hexagonal screw rod, lock nut 4 precessions are regulated to the locking screw thread hole 111 of terminations 11, the position of lock adjustment pull bar 3, thereby the fusion device that locking expands.Alternatively, the neighboring in the locking screw thread hole 111 of fusion device main body 1 can be provided with cross locating slot 112, so that inflatable Invasive lumbar fusion device is put into human body at intra-operative.
Little according to inflatable Invasive lumbar fusion device volume of the present utility model, easy and simple to handle during implantation, compare with traditional box-shaped fusion device, owing to can making the gap of vertebral body front pillar front end be greater than the gap of front pillar rear end, therefore recover lumbar vertebra physiology lordosis desirable.In addition, fusion device of the present utility model regulates by adopting stepped arc regulating tank can realize stepping, is convenient to intervertebral fusion operation and quantizes.Simultaneously, fusion device of the present utility model is fixed on the anti-slop serrations on upper and lower weight-bearing surface on the soleplate of upper hypocentrum, play the effect fixedly securing from steady, there is higher interface stability and self-stability, do not need thus additional pedicle screw to fix, make intervertebral fusion operation Wicresoft, be conducive to the fusion of vertebral body, during implantation, to the original rock-steady structure of lumbar vertebra and soleplate, destroy less.
Although exemplary embodiments of the present utility model is illustrated, but obviously it will be appreciated by those skilled in the art that, in the situation that not deviating from spirit of the present utility model and principle, can change, its scope claims with and equivalent in limit.
Claims (7)
1. an inflatable Invasive lumbar fusion device, is characterized in that, described inflatable Invasive lumbar fusion device comprises:
Fusion device main body, described fusion device main body has approximate rectangular shape, described fusion device main body is comprised of interconnective adjusting termination and bulge, the inner end adjacent with described bulge of described adjusting termination is provided with adjustment hole, the outer end of described adjusting termination is provided with locking screw thread hole, described bulge consists of opening-like upper expander and lower expander, the opening of described bulge has implantation termination, the upper surface of described upper expander and the lower surface of described lower expander have respectively the weight-bearing surface matching with human body soleplate curvature, described weight-bearing surface is provided with anti-slop serrations along the length direction of described fusion device main body respectively, and the central authorities of described upper expander and described lower expander are formed with respectively the bone grafting hole of upper and lower correspondence, two sides perpendicular to described weight-bearing surface of described bulge form arc regulating tank along described length direction respectively, described arc regulating tank is communicated with described bone grafting hole, and the internal diameter of described arc regulating tank is from described implantation termination to stepped the reducing in described adjusting termination,
Expansion lock, described expansion lock is arranged on the inside of described fusion device main body, and comprise expansion-head and from the both sides of described expansion-head, be parallel to two extensions that described length direction extends respectively, the diameter that described expansion-head has the cylinder form corresponding with the shape of the maximum gauge portion of described arc regulating tank and a described expansion-head is less than the diameter of described maximum gauge portion, so that described expansion-head is engaged in described arc regulating tank;
Adjusting yoke, described adjusting yoke has drawhead and thread rod part, and the diameter of described drawhead is less than the diameter of described adjustment hole, and described thread rod part is threaded onto described expansion lock; With
Lock nut, described lock nut is provided with the external screw thread for being meshed with described locking screw thread hole.
2. inflatable Invasive lumbar fusion device according to claim 1, is characterized in that:
Distance between described two extensions is less than the width in described bone grafting hole;
Described expansion lock also comprises regulating block, and described regulating block is connected between the end of described two extensions in hinged way; And
The central authorities of described regulating block are provided with adjusting screwed hole, and described thread rod part is threaded with described adjusting screwed hole.
3. inflatable Invasive lumbar fusion device according to claim 1, is characterized in that, described drawhead has hexagonal internal thread hole.
4. inflatable Invasive lumbar fusion device according to claim 1, is characterized in that, described lock nut has hexagonal internal thread hole.
5. inflatable Invasive lumbar fusion device according to claim 1, is characterized in that, described implantation termination has the circular arc of being, trapezoidal or oval-shaped outer shape.
6. inflatable Invasive lumbar fusion device according to claim 1, is characterized in that, described bone grafting hole has rectangular shape.
7. inflatable Invasive lumbar fusion device according to claim 1, is characterized in that, the neighboring in described locking screw thread hole is provided with cross locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074686.4U CN203749649U (en) | 2014-02-21 | 2014-02-21 | Inflatable interbody fusion cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074686.4U CN203749649U (en) | 2014-02-21 | 2014-02-21 | Inflatable interbody fusion cage |
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| CN203749649U true CN203749649U (en) | 2014-08-06 |
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| CN201420074686.4U Expired - Fee Related CN203749649U (en) | 2014-02-21 | 2014-02-21 | Inflatable interbody fusion cage |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876865A (en) * | 2014-02-21 | 2014-06-25 | 吉林医药学院 | Expandable interbody fusion cage |
| CN105726171A (en) * | 2016-04-05 | 2016-07-06 | 广州爱锘德医疗器械有限公司 | Adjustable fusion cage device |
| CN105853030A (en) * | 2016-03-25 | 2016-08-17 | 广州军区广州总医院 | Dilatable cervical vertebral fusion cage |
| CN106726018A (en) * | 2017-01-19 | 2017-05-31 | 张衣北 | The adjustable intervertebral of Wedged fixes fusion device |
| CN107890384A (en) * | 2017-12-20 | 2018-04-10 | 山东威高骨科材料股份有限公司 | 3D printing Invasive lumbar fusion device and its assembling fixing means |
| CN109820626A (en) * | 2019-03-15 | 2019-05-31 | 博能华医疗器械（北京）有限公司 | A kind of Invasive lumbar fusion device of four-way expansion |
| CN111714167A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Split-assembly type lateral approach lumbar intervertebral fusion system |
-
2014
- 2014-02-21 CN CN201420074686.4U patent/CN203749649U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876865A (en) * | 2014-02-21 | 2014-06-25 | 吉林医药学院 | Expandable interbody fusion cage |
| CN103876865B (en) * | 2014-02-21 | 2016-04-27 | 吉林医药学院 | Inflatable Invasive lumbar fusion device |
| CN105853030A (en) * | 2016-03-25 | 2016-08-17 | 广州军区广州总医院 | Dilatable cervical vertebral fusion cage |
| CN105726171A (en) * | 2016-04-05 | 2016-07-06 | 广州爱锘德医疗器械有限公司 | Adjustable fusion cage device |
| CN106726018A (en) * | 2017-01-19 | 2017-05-31 | 张衣北 | The adjustable intervertebral of Wedged fixes fusion device |
| CN107890384A (en) * | 2017-12-20 | 2018-04-10 | 山东威高骨科材料股份有限公司 | 3D printing Invasive lumbar fusion device and its assembling fixing means |
| CN107890384B (en) * | 2017-12-20 | 2024-02-02 | 山东威高骨科材料股份有限公司 | 3D printing interbody fusion cage and assembly and fixation method thereof |
| CN109820626A (en) * | 2019-03-15 | 2019-05-31 | 博能华医疗器械（北京）有限公司 | A kind of Invasive lumbar fusion device of four-way expansion |
| CN109820626B (en) * | 2019-03-15 | 2023-11-14 | 博能华医疗器械（北京）有限公司 | Four-way expansion interbody fusion cage |
| CN111714167A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Split-assembly type lateral approach lumbar intervertebral fusion system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20160221 |