CN109758271B - Fusion device - Google Patents
Fusion device Download PDFInfo
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- CN109758271B CN109758271B CN201910126330.8A CN201910126330A CN109758271B CN 109758271 B CN109758271 B CN 109758271B CN 201910126330 A CN201910126330 A CN 201910126330A CN 109758271 B CN109758271 B CN 109758271B
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- cover plate
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- adjusting block
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- 230000004927 fusion Effects 0.000 title claims abstract description 43
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 230000033001 locomotion Effects 0.000 claims description 17
- 239000007943 implant Substances 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241000251539 Vertebrata <Metazoa> Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a fusion device, which comprises a fixed block, an upper cover plate, a lower cover plate and a driving opening mechanism, wherein the fixed block is of a frame structure with a cavity inside, the driving opening mechanism is arranged in the cavity, the upper cover plate and the lower cover plate are respectively covered on the upper surface and the lower surface of the fixed block, bone grafting windows arranged on the upper cover plate and the lower cover plate are communicated with the cavity, the driving opening mechanism comprises an adjusting screw, a left adjusting block and a right adjusting block, the adjusting screw is rotationally arranged on the fixed block, the left adjusting block and the right adjusting block are respectively connected on the left side and the right side of the adjusting screw through threads, the left sides of the upper cover plate and the lower cover plate are respectively matched with the left adjusting block, the right sides of the upper cover plate and the lower cover plate are respectively matched with the right adjusting block, and the left adjusting block and the right adjusting block are axially moved to drive the upper cover plate and the lower cover plate to be close to or far away from each other. The fusion device has stable structure and enhances the bone fusion effect of the intervertebral fusion device.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a fusion cage for vertebrae.
Background
The spine is the "column of life" of mammalian vertebrates, especially upright walking humans that stand out in evolutionary evolution of object competition. Life undergoes occurrence, development, decline and death under the general rule of metabolism, and the cycle is repeated; the spine, which is the "column of life", is necessarily governed by this law. Thus, attenuation degeneration is a process that the spine in each living individual must undergo after the peak of young and young life.
Cases of vertebral body damage may occur due to various causes of tumors, fractures, infections, and the like. In the treatment of these patients, a method of implanting a fusion cage body between damaged vertebral bodies is currently adopted to enable bone tissues to creep for replacement, so that damaged vertebral bodies are repaired, however, the traditional vertebral body fusion cage body is highly fixed, the height of the intervertebral body of the human body is different from person to person, the requirements of the patients are difficult to adapt to in operation by adjusting the height of the fusion cage body, and the treatment effect is easy to influence.
The patent of CN107174383A specifically discloses a spreading type interbody fusion cage, which consists of a fusion contact mechanism and a driving spreading mechanism, wherein the fusion contact mechanism consists of an upper cage seat and a lower cage seat, the driving placement mechanism consists of an adjusting screw, a left adjusting block and a right adjusting block, the left adjusting block and the right adjusting block are driven to move inwards simultaneously through the rotation of the adjusting screw, and the distance between the upper cage seat and the lower cage seat is pulled to spread the cage. However, the structure of the fusion device is not stable enough, the bone implant amount is not large, and the bone fusion effect of the intervertebral fusion device is not ideal.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art, providing a fusion device with a more stable structure, increasing the bone implant quantity of the fusion device and enhancing the bone fusion effect of the intervertebral fusion device.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a fusion ware, including the fixed block, the upper cover plate, the lower apron, drive struts the mechanism, the fixed block is the framework structure of interior cavity of establishing, drive struts the mechanism and sets up in the cavity, the upper cover plate covers respectively with the lower apron and establishes on the upper and lower face of fixed block, the upper cover plate is linked together with the cavity with the bone grafting window that sets up on the lower apron, drive struts the mechanism and includes adjusting screw, left adjusting block, right adjusting block, adjusting screw rotates and sets up on the fixed block, left adjusting block and right adjusting block pass through threaded connection respectively in adjusting screw's left and right sides, the upper cover plate cooperatees with left adjusting block respectively with the left side of lower apron, the right side of upper cover plate and lower apron cooperatees with right adjusting block respectively, left adjusting block and right adjusting block follow axial motion, drive upper cover plate and lower apron draw close or keep away from each other. The upper cover plate and the lower cover plate are matched with the left adjusting block and the right adjusting block, and any other mode such as inclined plane matching or connecting rod matching can be adopted, so that the left adjusting block and the right adjusting block can move along the axial direction, and the upper cover plate and the lower cover plate are driven to be close to or far away from each other.
Preferably, the left regulating block and the right regulating block move along the same direction along the axial direction to drive the upper cover plate and the lower cover plate to be close to or far away from each other, namely, the left regulating block and the right regulating block move along the same direction along the axial direction to drive the upper cover plate and the lower cover plate to be close to each other, and the left regulating block and the right regulating block move along the same direction along the axial direction to drive the upper cover plate and the lower cover plate to be far away from each other.
Preferably, the left adjusting block and the right adjusting block move reversely along the axial direction to drive the upper cover plate and the lower cover plate to be close to or far away from each other, and the reverse movement is interpreted as reverse movement, including opposite movement and back movement, namely, the left adjusting block and the right adjusting block move oppositely along the axial direction to drive the upper cover plate and the lower cover plate to be far away from each other, and the left adjusting block and the right adjusting block move back along the axial direction to drive the upper cover plate and the lower cover plate to be close to each other, or vice versa.
Further preferably, the left sides of the upper cover plate and the lower cover plate are respectively matched with the left adjusting block through inclined planes, the right sides of the upper cover plate and the lower cover plate are respectively matched with the right adjusting block through inclined planes, and the left adjusting block and the right adjusting block axially move to drive the upper cover plate and the lower cover plate to be close to or far away from each other.
Preferably, the upper wedge face inclined towards the left or right same side direction is respectively arranged at the two ends of the lower part of the upper cover plate, an upper wedge groove is formed in the middle of the upper wedge face, an upper placing groove cavity for placing a driving and expanding mechanism is formed in the middle of the lower part of the upper cover plate, lower wedge faces which are in mirror symmetry with the upper wedge face are respectively arranged at the two ends of the upper part of the lower cover plate, a lower placing groove cavity which is symmetrical with the upper wedge groove is formed in the middle of the upper part of the lower cover plate, a driving and expanding mechanism placing cavity is formed by matching the upper placing groove cavity with the lower placing groove cavity, an upper wedge face matched with the upper wedge face is arranged above the left adjusting block and the right adjusting block respectively, an upper wedge seat matched with the upper wedge face is arranged on the upper side wedge face, a lower wedge face matched with the lower wedge face is arranged below the left adjusting block and the right adjusting block respectively, a normal rotation threaded hole is formed in the middle of the lower wedge face, a normal rotation threaded hole is formed in the upper middle of the lower cover plate, the left adjusting block and the right adjusting block are connected with the left adjusting block and the right adjusting block, and the left adjusting block and the right adjusting block are connected with the left adjusting block and the right adjusting block in a penetrating mode, and the left adjusting block and the right adjusting block are far away from the adjusting block and move close to each other, and the adjusting block is driven by the adjusting block and the right adjusting block is arranged in the adjusting device. The preferred co-directional motion is more convenient to assemble and structurally stable in use than the reverse motion.
Preferably, the upper wedge groove and the lower wedge groove are dovetail grooves, the side upper wedge seat is a dovetail-shaped side upper wedge seat, the side lower wedge seat is a dovetail-shaped side lower wedge seat, and in addition, the shapes of the upper wedge groove, the lower wedge groove, the side upper wedge seat and the side lower wedge seat can be circular arc, trapezoid or special shape.
Preferably, in order to prevent left and right lateral movement of the adjusting screw, the fusion device further comprises a blocking pin, the adjusting screw comprises a screw cap and a screw rod, a pin blocking groove is formed in the screw cap, a hexagonal driving groove is formed in the end face, screw cap fixing holes and screw rod fixing holes for placing the screw cap and the tail of the screw rod are respectively formed in the left side and the right side of the fixing block, pin holes corresponding to the pin blocking groove are further formed in the fixing block, and the blocking pin penetrates through the pin holes to be inserted into the pin blocking groove to limit left and right movement of the adjusting screw.
Further preferably, the adjusting screw is internally provided with a long hole along the length direction, one end of the long hole is communicated with the outside through the screw and the nut, the screw is provided with a plurality of implant outlets communicated with the long hole along the length direction, the implant outlets are circumferentially distributed on the screw, the operating devices are few, and the use is more convenient.
Preferably, in order to limit the front-back and left-right movement of the upper cover plate and the lower cover plate, the upper side and the lower side of the fixed block are respectively provided with a limit groove, the front side and the rear side of the upper cover plate are respectively provided with limit stops matched with the limit grooves, and the front side and the rear side of the lower cover plate are respectively provided with limit stops matched with the limit grooves.
Preferably, bone grafting windows are respectively arranged on the front side and the rear side of the fixed block, instrument fixing grooves are respectively arranged on the side surface of one side of the fixed block, which is provided with the nut fixing holes, and anti-skid grooves are respectively arranged on the upper surface of the upper cover plate and the lower surface of the lower cover plate. The bone grafting window is preferably waist-shaped.
The invention also provides a use method of the fusion device, which comprises the following steps:
(1) Placing the fusion device in a closed state;
(2) Implanting the prepared bone implant from the bone implantation window;
(3) Inserting the instrument into the instrument fixing groove and fixing the fusion device;
(4) Inserting the fusion cage between the vertebral plates;
(5) Rotating the device clockwise to enable the upper cover plate and the lower cover plate to be propped up to the required height, and stopping rotating;
(6) The instrument is removed and the remaining bone implant is driven through the elongated hole of the adjustment screw.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the fixing block is added in the structure, so that the whole structure of the fusion device is more stable in use;
2. According to the invention, the left adjusting block and the right adjusting block are driven to move in the same direction simultaneously through the rotation of the adjusting screw, so that the upper cover plate and the lower cover plate are mutually close or far away, the assembly is more convenient, and the structure is more stable;
3. The adjusting screw rod is internally provided with the long hole along the length direction, one end of the long hole is communicated with the outside through the screw rod and the screw cap, the screw rod is provided with the implant outlet communicated with the long hole, and the filling operation can be directly carried out when the adjusting screw rod rotates, so that the operating equipment is less, and the use is more convenient;
4. The application method of the invention is different from that of the traditional fusion cage which is firstly spread and implanted with bone implants, and the invention can fill more bone implants, thereby enhancing the bone fusion effect of the intervertebral fusion cage.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of the fixing block in FIG. 1;
FIG. 3 is a schematic view of the upper cover plate of FIG. 1, wherein 3-1 is a bottom perspective view and 3-2 is a top perspective view;
FIG. 4 is a schematic view of the lower cover plate of FIG. 1, wherein 4-1 is a top perspective view; 4-2 is a bottom perspective view;
FIG. 5 is a schematic view of the adjusting screw of FIG. 1, wherein 5-1 is a cross-sectional view; 5-2 is a side view;
FIG. 6 is a schematic diagram of the left adjustment block of FIG. 1;
FIG. 7 is a schematic diagram of the right adjustment block of FIG. 1;
FIG. 8 is a schematic diagram of the folding state of embodiment 1;
Fig. 9 is a schematic view of the distracted state of example 1;
Wherein: 1. a fixed block; 11. a nut fixing hole; 12. screw fixing holes; 13. a pin hole; 14 limit grooves; 2. an upper cover plate; 21. an upper wedge surface; 22. a wedge groove is formed; 23. an upper placement slot cavity; 3. a lower cover plate; 31. a lower wedge surface; 32. a lower wedge groove; 33. a lower placement tank cavity; 4. adjusting a screw; 41. a screw cap; 42. a screw; 43. a pin blocking groove; 44. a hexagonal driving groove; 45. a long hole; 46. an implant outlet; 5. a left regulating block; 6. a right adjusting block; 7. a stop pin; 8. a bone grafting window; 561. a side upper wedge surface; 562. a wedge seat on the side; 563. a side lower wedge surface; 564. a side lower wedge seat; 565. a threaded hole; 9. a limit stop; 10. an instrument fixing groove; 231. an anti-skid slot.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example 1
As shown in fig. 1-9, this embodiment of a fusion device includes a fixed block 1, an upper cover plate 2, a lower cover plate 3, and a driving and opening mechanism, where the fixed block 1 is a frame structure with a cavity therein, the driving and opening mechanism is disposed in the cavity, the upper cover plate 2 and the lower cover plate 3 are respectively covered on the upper and lower surfaces of the fixed block 1, the upper cover plate 2 and the lower cover plate 3 are disposed on a bone grafting window 8 and the cavity are communicated, the driving and opening mechanism includes an adjusting screw 4, a left adjusting block 5, and a right adjusting block 6, the adjusting screw 4 is rotatably disposed on the fixed block 1, the left adjusting block 5 and the right adjusting block 6 are respectively connected on the left and right sides of the adjusting screw 4 through threads, the left sides of the upper cover plate 2 and the lower cover plate 3 are respectively matched with the left adjusting block 5 through inclined surfaces, the right sides of the upper cover plate 2 and the lower cover plate 3 are respectively matched with the right adjusting block 6 through inclined surfaces, the left adjusting block 5 and the right adjusting block 6 move in the same direction along the axial direction, that the upper cover plate 2 and the lower cover plate 3 are close to each other or far away from each other, that is, that the left adjusting block 5 and the right adjusting block 6 move in the same axial direction along the axial direction, and the left adjusting block 2 and the right cover plate 3 move along the same direction, and the left adjusting block 2 and the left side and the right adjusting block 3 are far away from each other.
The concrete structure is as follows: the two ends of the lower part of the upper cover plate 2 are respectively provided with an upper wedge surface 21 inclining towards the same side direction on the right side, the middle part of the upper wedge surface 21 is provided with an upper wedge groove 22, the middle part of the lower part of the upper cover plate 2 is provided with an upper placing groove cavity 23 used for placing a driving and expanding mechanism, the two ends of the upper part of the lower cover plate 3 are respectively provided with a lower wedge surface 31 in mirror symmetry with the upper wedge surface 21, the middle part of the lower wedge surface 31 is provided with a lower wedge groove 32 in symmetry with the upper wedge groove 22, the middle part of the upper part of the lower cover plate 3 is provided with a lower placing groove cavity 33 matched with the upper placing groove cavity 23, the upper placing groove cavity 23 is matched with the lower placing groove cavity 33 to form a driving and expanding mechanism placing cavity, the upper side upper wedge surfaces 561 matched with the upper wedge surface 21 are respectively arranged above the left regulating block 5 and the right regulating block 6, the side upper wedge surface 561 is provided with a side upper wedge seat 562 matched with the upper wedge groove 22, the lower parts of the left adjusting block 5 and the right adjusting block 6 are respectively provided with a side lower wedge surface 563 matched with the lower wedge surface 31, the side lower wedge surface 563 is provided with a side lower wedge seat 564 matched with the lower wedge groove 32, the middle parts of the left adjusting block 5 and the right adjusting block 6 are provided with a positive rotation threaded hole 565, the adjusting screw 4 is provided with a positive rotation thread, the left end of the adjusting screw 4 is connected with the left adjusting block 5, the right end passes through a driving opening mechanism placing cavity and is connected with the right adjusting block 6, the rotation of the adjusting screw 4 drives the left adjusting block 5 and the right adjusting block 6 to move in the same direction at the same time, the mutual approaching or separating between the upper cover plate 2 and the lower cover plate 3 is realized, the same direction movement is more convenient in assembly and more stable in structure compared with the reverse movement.
In the present embodiment, the upper wedge groove 22 and the lower wedge groove 32 are dovetail grooves, the side upper wedge seat 562 is a dovetail-shaped side upper wedge seat, and the side lower wedge seat 564 is a dovetail-shaped side lower wedge seat.
In this embodiment, in order to prevent the left-right lateral movement of the adjusting screw 4, the fusion device further comprises a blocking pin 7, the adjusting screw 4 comprises a screw cap 41 and a screw rod 42, a pin blocking groove 43 is formed in the screw cap 41, a hexagonal driving groove 44 is formed in the end face of the screw cap 41, a screw cap fixing hole 11 and a screw rod fixing hole 12 for placing the tail parts of the screw cap 41 and the screw rod 42 are respectively formed in the left side and the right side of the fixing block 1, a pin hole 13 corresponding to the pin blocking groove 43 is further formed in the fixing block 1, and the blocking pin 7 is inserted into the pin blocking groove 43 through the pin hole 13 to limit the left-right movement of the adjusting screw 4.
In this embodiment, the adjusting screw 4 is provided with a long hole 45 inside along the length direction, one end of the long hole 45 is communicated with the outside through the screw 42 and the nut 41, the screw 42 is provided with a plurality of implant outlets 46 communicated with the long hole 45 along the length direction, the implant outlets 46 are circumferentially distributed on the screw 42, and the operating apparatus is less and the use is more convenient.
In this embodiment, in order to limit the front-back and left-right movement of the upper cover plate 2 and the lower cover plate 3, the upper and lower sides of the fixed block 1 are respectively provided with a limit groove 14, the front and rear sides of the upper cover plate 2 are respectively provided with limit stops 9 matched with the limit grooves 14, and the front and rear sides of the lower cover plate 3 are respectively provided with limit stops 9 matched with the limit grooves 14.
In this embodiment, bone grafting windows 8 are respectively provided on the front and rear sides of the fixing block 1, an instrument fixing groove 10 is provided on the side of the fixing block 1 on which the nut fixing hole 11 is provided, and anti-slip grooves 231 are respectively provided on the upper surface of the upper cover plate 2 and the lower surface of the lower cover plate 3.
In this embodiment, the bone grafting window 8 on the fixing block 1 and the bone grafting windows 8 on the upper cover plate 2 and the lower cover plate 3 are preferably waist-shaped.
The application method of the fusion device comprises the following steps:
(1) Placing the fusion device in a closed state;
(2) Implanting the prepared bone implant from the bone implantation window;
(3) Inserting the instrument into the instrument fixing groove and fixing the fusion device;
(4) Inserting the fusion cage between the vertebral plates;
(5) Rotating the device clockwise to enable the upper cover plate and the lower cover plate to be propped up to the required height, and stopping rotating;
(6) The instrument is removed and the remaining bone implant is driven through the elongated hole of the adjustment screw.
The apparatus is a common apparatus in the art, is a sleeve structure, and is not used as an inventive point of the present invention, and will not be described herein.
The above detailed description of the present invention is provided to facilitate understanding of the method and its core concept, and is intended to enable those skilled in the art to understand the present invention and to implement it accordingly, and is not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. A fusion cage, characterized in that: the device comprises a fixed block, an upper cover plate, a lower cover plate and a driving opening mechanism, wherein the fixed block is of a frame structure with a cavity inside, the driving opening mechanism is arranged in the cavity, the upper cover plate and the lower cover plate are respectively covered on the upper surface and the lower surface of the fixed block, a bone grafting window arranged on the upper cover plate and the lower cover plate is communicated with the cavity, the driving opening mechanism comprises an adjusting screw, a left adjusting block and a right adjusting block, the adjusting screw is rotationally arranged on the fixed block, the left adjusting block and the right adjusting block are respectively connected on the left side and the right side of the adjusting screw through threads, the left sides of the upper cover plate and the lower cover plate are respectively matched with the left adjusting block, and the right sides of the upper cover plate and the lower cover plate are respectively matched with the right adjusting block, and the left adjusting block and the right adjusting block axially move to drive the upper cover plate and the lower cover plate to be close to or far away from each other; limiting grooves are respectively formed in the upper side and the lower side of the fixed block, limiting stops matched with the limiting grooves are respectively arranged on the front side and the rear side of the upper cover plate, and limiting stops matched with the limiting grooves are respectively arranged on the front side and the rear side of the lower cover plate; the adjusting screw comprises a screw cap and a screw rod, a long hole is formed in the adjusting screw along the length direction, one end of the long hole is communicated with the outside through the screw rod and the screw cap, and a bone implant outlet communicated with the long hole is formed in the screw rod.
2. The fusion device of claim 1, wherein: the left adjusting block and the right adjusting block move in the same direction along the axial direction to drive the upper cover plate and the lower cover plate to be close to or far away from each other.
3. The fusion device of claim 1, wherein: the left adjusting block and the right adjusting block move reversely along the axial direction to drive the upper cover plate and the lower cover plate to be close to or far away from each other.
4. A fusion device according to claim 2 or 3, wherein: the left side of upper cover plate and lower apron respectively with left regulating block passes through the inclined plane and cooperatees, the upper cover plate with the right side of lower apron respectively with right regulating block passes through the inclined plane and cooperatees, left regulating block and right regulating block follow axial movement, drive upper cover plate and lower apron draw close or keep away from each other.
5. The fusion device of claim 4, wherein: the lower both ends of upper cover plate are equipped with the upper wedge face that inclines to the left or right same side direction respectively, and the middle part of upper wedge face is equipped with the wedge groove, the below middle part of upper cover plate is equipped with the last standing groove chamber that is used for placing drive and struts the mechanism, the upper both ends of lower cover plate are equipped with the lower wedge face with last wedge face mirror symmetry respectively, the middle part of lower wedge face be equipped with the lower wedge groove of last wedge groove symmetry, the top middle part of lower cover plate be equipped with last standing groove chamber matched with lower standing groove chamber, go up standing groove chamber and lower standing groove chamber cooperation and form drive strut mechanism and place the chamber, the upper wedge face is equipped with on the side of left side regulating block and right regulating block respectively with last wedge face complex side upper wedge seat, the side regulating block and right regulating block be equipped with lower wedge face complex side lower wedge seat down, the side regulating block is equipped with the screw hole that just revolves on the middle part of upper regulating block and right regulating block, the screw rod is equipped with the screw thread is kept away from mutually with the side of side regulating block, the screw rod is connected with the realization screw rod that the side of side regulating block is screwed down, the regulating block is kept close to the same with the end of moving mutually.
6. The fusion device of claim 1, wherein: still include the spacer pin, the pin keeps off the groove on seting up on the nut, be equipped with the hexagonal drive groove on the terminal surface, nut fixed orifices and screw rod fixed orifices of placing nut and screw rod afterbody have been seted up respectively to the left and right sides of fixed block, still be equipped with the pin hole that corresponds pin and keep off groove department on the fixed block, the spacer pin passes the pin hole inserts the pin keeps off the groove, restriction adjusting screw's left and right movement.
7. The fusion device of claim 1, wherein: bone grafting windows are respectively arranged on the front side and the rear side of the fixing block, an instrument fixing groove is formed in the side face of one side, provided with the nut fixing hole, of the fixing block, and anti-slip grooves are respectively formed in the upper surface of the upper cover plate and the lower surface of the lower cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126330.8A CN109758271B (en) | 2019-02-20 | 2019-02-20 | Fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126330.8A CN109758271B (en) | 2019-02-20 | 2019-02-20 | Fusion device |
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| Publication Number | Publication Date |
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| CN109758271A CN109758271A (en) | 2019-05-17 |
| CN109758271B true CN109758271B (en) | 2024-05-14 |
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| CN201910126330.8A Active CN109758271B (en) | 2019-02-20 | 2019-02-20 | Fusion device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426250A (en) * | 2019-08-26 | 2021-03-02 | 上海凯利泰医疗科技股份有限公司 | Cervical vertebra self-stabilization type fusion cage, and holder and system thereof |
| CN111227997B (en) * | 2019-11-29 | 2021-01-26 | 珠海维尔康生物科技有限公司 | Hollow distractable intervertebral fusion cage |
| CN112120836B (en) * | 2020-09-01 | 2021-05-25 | 珠海维尔康生物科技有限公司 | Height-adjustable high-stability intervertebral fusion device capable of supplementing and pressurizing bone grafting |
| CN115531054A (en) * | 2021-04-26 | 2022-12-30 | 上海三友医疗器械股份有限公司 | Lateral Access Fusion |
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