KR101388078B1 - Cage having the blade for mounting between intervertebral disks - Google Patents

Cage having the blade for mounting between intervertebral disks Download PDF

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Publication number
KR101388078B1
KR101388078B1 KR1020120085111A KR20120085111A KR101388078B1 KR 101388078 B1 KR101388078 B1 KR 101388078B1 KR 1020120085111 A KR1020120085111 A KR 1020120085111A KR 20120085111 A KR20120085111 A KR 20120085111A KR 101388078 B1 KR101388078 B1 KR 101388078B1
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South Korea
Prior art keywords
main body
blade
cage
insert
support rod
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KR1020120085111A
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Korean (ko)
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KR20140018668A (en
Inventor
김서곤
김일
윤도흠
신현철
김긍년
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주식회사 솔고 바이오메디칼
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Priority to KR1020120085111A priority Critical patent/KR101388078B1/en
Publication of KR20140018668A publication Critical patent/KR20140018668A/en
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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)
  • Neurology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Surgery (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)

Abstract

The present invention relates to a cage inserted between the vertebrae of the cervical spine or vertebrae in the treatment of intervertebral disc disease, disc surgery, myelopathy, fracture of the cervical spine or spine, and more particularly, to the body of the cage. The blades embedded in the main body are deployed to the upper and lower parts of the main body by the inserts that enter the inside, and the cages are fixed between the vertebrae by being caught by the vertebrae of the cervical vertebra or vertebrae, which are located above and below the cage. It relates to a cage with intervertebral fixation blades, characterized in that it is locked.

Description

Cage having the blade for mounting between intervertebral disks}

The present invention relates to a cage inserted between the vertebrae of the cervical spine or vertebrae in the treatment of intervertebral disc disease, disc surgery, myelopathy, fracture of the cervical spine or spine, and more particularly, to the body of the cage. The blades embedded in the main body are deployed to the upper and lower parts of the main body by the inserts that enter the inside, and the cages are fixed between the vertebrae by being caught by the vertebrae of the cervical vertebra or vertebrae, which are located above and below the cage. It relates to a cage with intervertebral fixation blades, characterized in that it is locked.

In general, orthopedic surgery or neurosurgery is performed to remove the compression of the nerve by removing the disc (disc) of the affected part for cervical disc disease, disc, myelopathy, and fracture, Surgery to insert an artificial correction chain cage that restores and maintains the spacing of the part where the disc is located is performed.

Such a cage should have the means to prevent the flow of the cervical spine or intervertebral disc in the intervertebral space while preventing the pivot of the cage, since there is a risk that it will move in the intervertebral space under the influence of stress applied when the patient moves.

For this purpose, as in the configuration of the cervical interbody fusion device of Korean Patent Laid-Open No. 10-2011-33707, the cage for spinal implant of Korean Patent No. 900991, the intervertebral fusion cage of Korean Patent Laid-open Publication No. 10-2011-11049, It is known that a cage is inserted into an intervertebral disc removal site and a reinforcing plate having a predetermined length is fixed to the cervical vertebrae or vertebrae using a screw to prevent displacement of the inserted cage.

By the way, the above known techniques are all the way that the reinforcing plate is fixed through the screw in the front portion of the cage, so that the head portion of the screw inserted into the plate or a portion of the plate is located above and below the intervertebral disc removal site where the cage is installed. It may protrude more than the protruding part of the spine or cervical spine, whereby the head portion of the screw protruding in the intervertebral space may cause the cage to move or pivot in the intervertebral space depending on the force applied as the patient moves over time. There is a need for the development of a safer cage because of the possibility of contact with vascular or neural tissue passing through it.

In addition, in the known techniques, plates and screws are used to fix the cage. Since the process of fixing the plate with the screw in the narrow intervertebral space has not only been past but also requires a high degree of caution, to be.

The present invention was devised to solve the above conventional problems, and prevents the occurrence of the protruding portion of the screw as in the prior art to minimize the interference with the vascular tissue or nerve tissue passing through the spine or cervical spine during the cage procedure There is a technical problem of the present invention to provide a configuration of a cage having a blade for fixing the intervertebral can be performed by the simple and simple operation for fixing the cage to improve the stability of the operation.

In the configuration of the cage having the intervertebral fixing blade according to the present invention for achieving the above technical problem, the blades embedded in the main body by the insert which enters into the main body of the cage is deployed to the top and bottom of the main body, the deployment It is characterized in that the cage is locked between the vertebrae by locking the blades of the cervical or vertebrae located above and below the cage.

The effect of the cage with the intervertebral fixation blade of the present invention having the configuration as described above is as follows.

First, the cage of the present invention is fixed by being caught by the blades located in the front portion of the main body to the upper and lower vertebrae of the cervical vertebra or vertebra of the intervertebral disc removal site, the screw or plate fixing the cage as in the prior art Some parts have the effect of greatly reducing the possibility of interfering with nerve and vascular tissues passing through the spine or cervical spine of the intervertebral disc removal site where the cage is installed, and further improving the treatment prognosis after surgery for intervertebral disc related disease. .

In addition, the cage of the present invention does not employ a plate or a screw as in the prior art, and since the blades are self-contained inside the main body, a difficult and inconvenient procedure of fixing a plate with a screw in a very narrow intervertebral space is omitted, thereby improving convenience of the procedure. In addition, the present invention is a very advanced invention having the effect of improving the stability of the surgery by providing a relatively simplified procedure.

1 is a perspective view of a cage of the present invention,
2 is a side view of the cage of the present invention,
3 is an exploded perspective view of the cage of the present invention,
4 is a detailed view of the main body of the cage of the present invention, FIG. 4A is a plan view, FIG. 4B is a sectional view taken along the line AA ′ of FIG. 4A, FIG. 4C is a side view, FIG. 4D is a sectional view taken along the line BB ′ of FIG. 4C,
Figure 5 is a detailed view of the blade of the cage of the present invention, Figure 5a is a perspective view, Figure 5b is an exploded perspective view, Figure 5c is a side view, Figure 5d is a sectional view of the first side blade, Figure 5e is a sectional view of the central blade,
Figure 6 is a detailed view of the insert of the cage of the present invention, Figure 6a is a front perspective view, Figure 6b is a rear perspective view, Figure 6c is a plan view.
7 and 8 is an operating state of the cage of the present invention,
9 is a view showing an insertion mechanism for operating the cage of the present invention, Figures 9a and 9b is a perspective view of the insert into the body using the insertion mechanism, Figure 9c is a perspective view of the insertion mechanism,
10 is a cross-sectional view showing a state in which the cage of the present invention is performed on the intervertebral disc removal site.

Hereinafter, the configuration of the cage with the intervertebral fixation blade of the present invention with reference to the drawings in detail.

It is to be noted, however, that the disclosed drawings are provided as examples for allowing a person skilled in the art to sufficiently convey the spirit of the present invention. Accordingly, the present invention is not limited to the following drawings, but may be embodied in other forms.

In addition, unless there is another definition in the terms used in the present specification, it has the meaning that is commonly understood by those of ordinary skill in the art, the gist of the present invention in the following description and the accompanying drawings. Detailed descriptions of well-known functions and configurations that may be unnecessarily blurred are omitted.

1 is a perspective view of the cage of the present invention, Figure 2 is a side view of the cage of the present invention.

Referring to the drawings, the cage 1 of the present invention is the upper and lower parts of the main body 10 by the main body 10 and the insert 30 which is embedded in the main body 10 to enter the main body 10. It characterized in that it comprises a blade 20 which is deployed to each.

The deployed blades 20 are locked to the upper and lower vertebral bodies of the cervical vertebrae or vertebrae located above and below the cage 1, and the cage 1 is fixed and locked between the cervical or vertebral bodies of the spine. For this, a more detailed configuration will be described later.

The body 10 of the cage 1 has a hexahedron shape consisting of an upper surface 101, both side surfaces 102a and 102b, a front surface 103, a bottom surface 104, and a rear surface 105, and an edge portion of the body 10. Is curved.

And, in the left and right portions of the main body 10, as shown in the top and bottom views of the main body 10 of Figures 4a and 4d, the bone fusion hole 110 penetrating the upper surface 101 and the lower surface 104 is The channel portion 130, which is a space portion having an opening into which the insert 30 is inserted, is formed in the central portion of the main body 10 of the cage 1.

In addition, slide grooves 131 having a shape engaging with the protruding bar 330 of the insert 30 to be described later are formed at both sides of the inner wall surface of the channel part 130.

On one side of the front face 103 of the main body 10, when inserting the insert 30 into the channel portion 130 inside the main body 10, the insertion mechanism 400 of the insert 30 to be described later 2 insertion hole 160 is inserted into the lower support rod 440 is formed.

In addition, as shown in the side view of Figure 2, the upper surface 101 and the lower surface 104 of the main body 10, when the cage 1 is inserted between the vertebrae of the cervical spine or spine, The teeth 101a and 104a are respectively formed in order to improve the contactability.

3 is an exploded perspective view of the present invention cage 1, a detailed view of the present invention main body 10 of FIG. 4, a detailed view of the invention blade 20 of FIG. 5 and the present invention insert 30 of FIG. The cage 1 of the present invention will be described in more detail with reference to the detailed diagrams.

As shown in FIG. 3, the blades 20 are coupled to each other through the channel portion 130 formed in the main body 10, and the respective blades 20 of the blades 20 are positioned above and above the main body 10. The insert 30 is pushed downward.

Specifically, the blade 20 is composed of a total of three, as shown in Figs. 5a to 5c, respectively, the first side blade 210 and the second side blade 220 and the second side blade 220 which are located on each of the left and right sides It consists of a central blade 230 located between the first side blade 210 and the second side blade 220, the first side blade 210, the second side blade 220 and the center blade 230 They are coalesced with each other by coupling pins 240 passing through their rear ends.

In addition, the first side blade 210, as shown in the cross-sectional view of Figure 5d, the shape of the front toward the front from the rear portion 214 formed through holes 221 through which the coupling pin 240 passes. The distal end of the upper portion 212 and the distal ends of the anterior lower portion 213 have a sharp pointed shape with a tip shape, and thus, the cage 1 of the present invention is between the upper and lower vertebral bodies of the vertebrae of the cervical spine or vertebrae. When inserted into the cage, the tip surface of the distal end of the front upper portion 212 of the forwardly raised shape is implanted in the upper vertebral body and caught in the upper vertebral body so that the cage 1 can be firmly inserted. The shape of the first side blade 210 is the same as that of the second side blade 220.

Similarly, as shown in the cross-sectional view of FIG. 5E, the shape of the center blade 220 is downward from the rear portion 234, which has a through hole 231 through which the coupling pin 240 penetrates. Each end of the lower end and the front lower portion 233 is lowered to have a pointed shape of the tip shape, and thus, when the cage 1 of the present invention is inserted between the upper and lower vertebrae of the vertebrae of the cervical spine or spine The tip 1 of the front of the front upper portion 212 of the forward raised shape is implanted in the lower vertebrae and is caught in the lower vertebrae, the cage 1 together with the first and second side blades 210.220. It can be inserted firmly.

In addition, as shown in the cross-sectional view of FIG. 4B, when the first side blade 210 and the second side blade 220 are pushed upward by the insertion of the insert 30 in the main body 10. An upper entrance 150, which is an outlet through which the first side blade 210 and the second side blade 220 protrude through the upper portion of the main body 10, is formed on the upper surface 101.

In addition, when the central blade 230 is pushed downward by the insertion of the insert 30, the main blade 10 is an outlet that protrudes through the lower portion of the main body 10. The lower entrance 151 is formed in the bottom surface 104.

In addition, as shown in the cross-sectional view of FIG. 4B, the insertion of the insert 30 is stopped on the inner bottom surface and the bottom surface 104 of the upper surface 101 of the channel portion 130 of the main body 10. Protruding jaws (181, 182) are formed, respectively, the first side blade 210 and the second side which is moved upward by the entry of the insert 30 on the inner wall surface of the back surface 105 of the main body 10 An upper inclined surface 171 for guiding the blade 220 toward the upper entrance 150 is formed.

In addition, a lower inclined surface 172 which guides the central blade 230 moved downward by the entry of the insert 30 to the inner wall surface of the rear surface 105 of the main body 10 in the direction of the lower entrance 151. Is formed.

4C and 4D, when inserting the insert 30 into the channel unit 130 inside the main body 10 on the other side of the front surface 103 of the main body 10, it will be described later. A mounting portion 140 into which the protruding boss 411 of the head 410 of the insertion mechanism 400 of the insert 30 is inserted is formed.

The material of the body 10 of the cage 1 is generally a metal or metal alloy such as titanium, zirconium, zirconium oxide, hafnium, platinum, rhodium, niobium, surgical stainless steel, CoCr (cobalt chromium) -steel, tantalum Or as fiber-reinforced plastics, polyether ether ketones (PEEK), or polymers. Furthermore, metals such as aluminum, medical steel, and gold may be added to the metal alloy.

In the present invention, it is preferable that polyether ether ketone (PEEK) having excellent processability and durability is used as the material of the main body 10.

The bone fusion holes 110 formed at the left and right portions of the main body 10 may be filled with autologous bone fragments collected from the patient's long bone during the procedure of the cage 1, which is filled in the bone fusion holes 110. The bone fragments penetrate the cage over time after the procedure, causing tissue growth to function in the intervertebral disc of the affected area with the spine or cervical spine.

As shown in the detailed view of the insert 30 of Figure 6a to 6c, the insert 30 is the upper surface 301 is engaged with the shape of the space portion of the channel portion 130 of the main body 10, A hexahedron shape having left and right side surfaces 302, a front surface 303, and a rear wall 305, in which the insert 30 enters the channel portion 130 inside the body 10. Insertion hole 320 is formed is inserted into the push rod 460 of the insertion mechanism 400 of the insert 30 to be described later.

In addition, the left and right side surfaces 302 of the insert 30 has a rib-shaped protrusion bar 330 inserted into the slide groove 131 formed on the inner wall surface of the channel portion 130 of the main body 10. Are respectively formed so that the body of the insert 30 is guided by the slide groove 131 and enters the main body 10 through the channel portion 130 to move the blades 210, 220. 230 upward or downward. It will be smuggled.

In addition, it is preferable that a bone fusion hole for bone fusion is formed in the insert 30 as in the main body 10, for this purpose, a bone fusion hole penetrating from the top surface 301 of the insert 30 to the bottom surface ( 310 is formed, the bone fusion hole 310 of the insert 30 is a space portion surrounded by the inner wall (311b) and the inner wall (311a) of the front surface 301 as described herein. Charges autologous bone fragments to allow fusion with the spine or cervical spine.

On the other hand, reference numerals 340 and 341 are the upper stepped surface 340 which is a step between the top surface 301 and the back wall 305 of the insert 30, respectively, and the bottom surface and the back wall of the insert 30 ( 305 is a lower stepped surface 341, which is a step between the upper stepped surface 340 and the lower stepped surface 341 is inserted into the channel portion 130, the channel 30 of the main body 10 The protrusions 181 and 182 are formed on the inner bottom and bottom surfaces 104 of the upper surface 101 of the part 130 to stop the entry of the insert 30.

The operation of the cage 10 of the present invention configured as described above will be described in detail with reference to the operation state diagram of FIGS.

As shown in FIG. 7, in the cage 10 of the present invention, the first side blade 210 and the second side blade 220 and the central blade 230 have upper and lower vertebrae of the cervical vertebra or vertebra of the intervertebral disc removal site. It is fixed by hanging on the field.

To this end, the first side blade 210, the second side blade 220, and the central blade 230 are joined to each other by the coupling pin 240, so that the channel part 130 and the main body 10 of the main body 10 are connected to each other. It is pre-coupled between the back 105 of the, in this state before the insert 30 enters through the channel portion 130, as shown on the left side of Figure 7, the blades (210, 220, 230) is the top or bottom Does not develop into.

However, when the protruding bars 330 formed on both side surfaces 302 of the insert 30 enter the channel portion 130 while being inserted into the slide groove 131 formed on the inner wall surface of the channel portion 130, FIG. 7. As shown on the right side of the rear wall of the insert 30, the blades 210, 220, 230 coupled between the channel portion 130 and the back surface 105 of the main body 10 entered through the channel portion 130. The first side blade 210 and the second side blade 220 are pushed through the upper surface 101 of the main body 10 through the upper entrance 150 of the main body 10 while being pushed by the upper side of the main body 10. The central blade 230 protrudes downward while penetrating through the lower surface 104 of the main body 10 through the lower entrance 151 of the main body 10.

That is, as shown in the cross-sectional view of the operating state of FIG. 8, when the insert 30 entering the channel 130 is caught by the protruding jaws 181 and 182, the rear wall 305 of the insert 30 is inserted. The first side blade 210 and the second side blade 220 which are pushed by) are guided by the upper inclined surface 171 and move toward the upper entrance 150 to protrude upward through the upper surface 101. The central blade 230 is guided by the lower inclined surface 172 and moves downward toward the lower entrance 151 to protrude downward while penetrating through the lower surface 104.

Therefore, the cage 1 of the present invention is a cage in which blades are built, and thus, a difficult and inconvenient procedure of fixing a plate with a screw in a narrow intervertebral space as in the prior art can be omitted, thereby improving the convenience of the procedure and enhancing the stability of the surgery. It will be possible.

9 shows an insertion mechanism for operating the cage of the present invention, which can be used to more stably insert the insert 30 into the body 10 of the cage 1 of the present invention as described above. It is shown.

9A and 9B are perspective views illustrating a state in which the insert is inserted into the main body using the insertion mechanism, and FIG. 9C is a detailed view of the insert insertion mechanism for the cage 1 of the present invention. As shown in FIG. 9A, the head 400 has a head 410 having a through hole 420 having a shape that engages with the cross-sectional shape of the insert 30.

The head 410 is a hexahedron shape, the front surface is formed with a protruding boss 411 is inserted into the mounting portion 140 of the main body 10, the upper surface is formed with an extension for penetrating the upper support rod 450 An arm 451 perpendicular to the upper support rod 450 is formed at the end of the upper support rod 450, and the arm 451 is a spine or cervical spine where the cage 1 is operated when the insert 30 is inserted. In contact with the upper weight of the insertion mechanism 400 improves the fixability and stability.

In addition, as shown in FIG. 9B, a first lower support rod 430 and a second lower support rod 440 are attached to the left side and the right side of the through hole 420 of the head 410, respectively. In addition to promoting the fixation and stability of the insertion mechanism 400, the insertion hole of the insert 30 at one end in the space existing between the first lower support rod 430 and the second lower support rod 440 The push rod 460 coupled to the 320 is installed to be movable in the front-rear direction so that the insert 30 enters the channel portion 130 of the main body 10 through the through hole 420.

At this time, as shown in Figure 9c, when entering the channel portion 130 of the main body 10 of the insert 30, the end surface 461 formed at the other end of the rod 460 While inserting the surgical hammer (P) and the like to insert the insert 30 carefully into the main body 10 slowly.

10 is a view showing the procedure of the present invention cage 10 as described above, after the present invention cage 1 is positioned between the upper and lower vertebrae (D1) and lower vertebrae (D2) of the cervical spine or vertebrae insertion mechanism 400 The insert 30 enters into the main body 10 through) and projects the first side blade 210, the second side blade 220, and the central blade 230 through the upper and lower surfaces of the main body 10. As a result, the tip 1 of the protruding blades is caught by the upper vertebrae D1 and the lower vertebrae D2 positioned above and below the cage so that the cage 1 is fixed and locked between the vertebrae D1 and D2. .

Accordingly, the cage 1 of the present invention is interpolated and fixed to the inner rear of these vertebrae D1 and D2 between the upper vertebral body D1 and the lower vertebral body D2, as shown, thereby providing a screw having a conventional cage. It is possible to greatly reduce the possibility that some parts of the plate interfere with the neural and vascular tissues passing through the spine or cervical spine at the intervertebral disc removal site where the cage is installed.

In the above description, the configuration of the cage having the intervertebral fixing blade of the present invention has been described in detail with reference to the accompanying drawings, but the present invention can be variously modified, changed and replaced by those skilled in the art, and such modifications, changes and substitutions are It should be interpreted as falling within the protection scope of the present invention.

Description of the Related Art [0002]
One; Invention cage
10; main body
20; blade
30; Insert
101; Upper surface 102a, 102b; side
103; Front 104; Bottom
105; Back surface 110; Osteoporosis
101a, 104a; Sawtooth
130; Channel section 131; Insert groove
140; Mounting part
150; Upper doorway 151; Lower doorway
160; Insert ball
171; Upper slope 172; Lower slope
181,182; Protruding chin
210; First side blade 220; 2nd side blade
230; Central blade 240; [0050]
211,221,231; Through-hole
212; Anterior top 213; Anterior lower
214; Rear portion
301; Top surface 302; side
303; Front side 305; Back
310; Bone fusion 311a; Front inner wall
311b; Interior sidewalls
320; Insertion hole 330; Protrusion bar
340; Upper stepped surface 341; Lower stepped surface
400; Insertion mechanism
410; Head 411; boss
420; Through hole
430; First lower support rod 440; The second lower support rod
450; Upper support rod 451; cancer
460; Straw 461; End face
D1; Upper bone D2; Lower bone
P; punch

Claims (9)

In a cage which is performed between the vertebrae of the cervical vertebrae or vertebrae,
A main body 10 having a hexahedron shape consisting of an upper surface 101, two side surfaces 102a and 102b, a front surface 103, a bottom surface 104, and a rear surface 105;
The upper surface 101 and the lower surface 104 of the main body 10 are respectively deployed to the upper and lower portions of the main body 10 by being inserted into the main body 10 and inserted into the main body 10. A plurality of blades 20 protruding therethrough; Lt; / RTI >
Bone fusion hole 110 penetrating the upper surface 101 and the bottom surface 104 is formed in the left and right portions of the main body 10,
The central portion of the main body 10 is formed with a channel portion 130 which is a space portion having an opening into which the insert 30 is inserted,
Intervertebral disc, characterized in that the slide grooves 131 having a shape that is engaged with the protruding bar 330 formed on the side surface 302 of the insert 30 on both sides of the inner wall surface of the channel portion 130, respectively Cage with fastening blades.
delete The method according to claim 1,
The blade 20 may include a first side blade 210 and a second side blade 220 positioned on each of the left and right sides, and a center blade positioned between the first side blade 210 and the second side blade 220. 230)
The first side blade 210, the second side blade 220 and the central blade 230 are interlocked with each other by the coupling pins 240 passing through their rear ends, respectively. Cage.
The method of claim 3, wherein the first side blade 210 and the second side blade 220,
It is a tip shape in which the end is raised upward toward the front from the rear portion formed through holes through which the coupling pin 240 passes,
The central blade 230 is,
Cage with intervertebral fixing blade, characterized in that the tip shape is lowered downward toward the lower side from the rear portion formed through holes through which the coupling pin 240 penetrates.
The method of claim 3, wherein the main body 10,
An upper entrance 150, which is an outlet through which the first side blade 210 and the second side blade 220 protrude through the upper portion of the main body 10, is formed on the upper surface 101,
Cage with intervertebral fixing blades, characterized in that the lower entrance 104 is formed in the bottom surface 104 is the outlet exiting the center blade 230 is projected through the lower portion of the main body (10).
6. The method of claim 5,
Protruding jaws 181 and 182 for stopping the entry of the insert 30 are formed on the inner bottom and bottom surfaces 104 of the upper surface 101 of the channel portion 130 of the main body 10, respectively.
The first side blade 210 and the second side blade 220 moved upward by the entry of the insert 30 on the inner wall surface of the back surface 105 of the main body 10 in the direction of the upper entrance 150. An upper inclined surface 171 is formed to guide the
On the inner wall surface of the back surface 105 of the main body 10 is formed a lower inclined surface 172 for guiding the central blade 230 moved downward by the entry of the insert 30 in the direction of the lower entrance 151. Cage with intervertebral fixation blade, characterized in that the.
The method of claim 1, wherein the insert 30,
It is a hexahedron shape having an upper surface 301, left and right side surfaces 302, a front surface 303, and a rear wall 305 meshing with the shape of the space portion of the channel portion 130 of the main body 10,
Insertion hole 320 is formed in the front surface 303,
Cage with intervertebral fixation blade, characterized in that the bone fusion hole 310 penetrates from the top surface 301 to the bottom surface of the insert 30 is formed.
The method according to claim 1,
Characterized in that saw teeth (101a, 104a) are formed on the upper surface (101) and the lower surface (104) of the main body (10), respectively.
An insertion mechanism (400) for inserting the insert (30) into the main body (10) of any one of claims 1, 3 to 8,
An insertion hole 160 into which the second lower support rod 440 of the insertion mechanism 400 is inserted is formed at one side of the front face 103 of the main body 10,
On the other side of the front surface 103 of the main body 10 is formed a mounting portion 140 is inserted into the protrusion boss 411 of the head 410 of the insertion mechanism 400,
The insertion mechanism 400,
It has a head 410 having a through hole 420 having a shape that is meshed with the cross-sectional shape of the insert 30, the front of the head 410 is interpolated in the mounting portion 140 of the main body 10 A protruding boss 411 is formed, and an extension portion penetrating the upper support rod 450 is formed on an upper surface of the head 410, and an arm 451 perpendicular to the upper support rod 450 at the end of the upper support rod 450. ) Is formed,
A first lower support rod 430 and a second lower support rod 440 are attached to left and right sides of the through hole 420 of the head 410, respectively.
The push rod 460 coupled to the insertion hole 320 of the insert 30 at one end in a space existing between the first lower support rod 430 and the second lower support rod 440 is movable in the front-rear direction. Insertion mechanism characterized in that the configuration is installed.
KR1020120085111A 2012-08-03 2012-08-03 Cage having the blade for mounting between intervertebral disks KR101388078B1 (en)

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KR1020120085111A KR101388078B1 (en) 2012-08-03 2012-08-03 Cage having the blade for mounting between intervertebral disks

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Application Number Priority Date Filing Date Title
KR1020120085111A KR101388078B1 (en) 2012-08-03 2012-08-03 Cage having the blade for mounting between intervertebral disks

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FR3048176A1 (en) 2016-02-26 2017-09-01 Ldr Medical SPINAL ARTHRODESIS IMPLANT SYSTEM
CN108175545B (en) * 2018-02-06 2024-04-02 上海交通大学医学院附属第九人民医院 Integrated frame type lumbar interbody fusion cage with lateral access pins
CN108095864B (en) * 2018-02-06 2024-04-02 上海交通大学医学院附属第九人民医院 Integrated frame type lumbar interbody fusion cage with lateral access lock hooks
CN108186168B (en) * 2018-02-06 2024-05-03 温州医科大学附属第二医院（温州医科大学附属育英儿童医院） Integrated frame type lumbar intervertebral cage with lateral access screw
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CN111821072A (en) * 2020-07-22 2020-10-27 广州民鋆医疗科技发展有限公司 Intervertebral fusion cage
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