KR20170035043A - Spinal implant with joint for minimal invasive surgery - Google Patents

Spinal implant with joint for minimal invasive surgery Download PDF

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Publication number
KR20170035043A
KR20170035043A KR1020150133592A KR20150133592A KR20170035043A KR 20170035043 A KR20170035043 A KR 20170035043A KR 1020150133592 A KR1020150133592 A KR 1020150133592A KR 20150133592 A KR20150133592 A KR 20150133592A KR 20170035043 A KR20170035043 A KR 20170035043A
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piece
unit
support piece
support
main body
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KR1020150133592A
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Korean (ko)
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KR101730476B1 (en
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김현성
윤홍원
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주식회사 메드릭스
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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
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • 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
    • A61F2/28—Bones
    • 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
    • A61F2/30721—Accessories
    • A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
    • 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
    • A61F2/28—Bones
    • A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
    • 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
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30112—Rounded shapes, e.g. with rounded corners
    • A61F2002/30131—Rounded shapes, e.g. with rounded corners horseshoe- or crescent- or C-shaped or U-shaped
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30153—Convex polygonal shapes rectangular
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30154—Convex polygonal shapes square

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Neurology (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

A main body unit having one end inserted between the vertebrae of the subject and the adjacent vertebrae and the one end and the other end relatively rotatable with respect to an intermediate portion between the one end and the other end; A rotation auxiliary unit provided at an intermediate portion of the main body unit and providing a reference point for relative rotation between the one end and the other end; And an operation unit that is inserted from the other end of the main unit and engages with the pivoting auxiliary unit to implement a relative pivotal motion between the one end and the other end, The present invention relates to a minimally invasive surgical vertebral implant having a joint capable of acquiring reliable surgical results.

Description

[0001] SPINAL IMPLANT WITH JOINT FOR MINIMAL INVASIVE SURGERY [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a minimally invasive surgical vertebral implant having joints, and more particularly, to a minimally invasive surgical vertebral implant having a joint for providing convenience of operation and obtaining accurate and reliable operation results. will be.

The disc between the vertebrae and the vertebrae functions as a joint and plays a very important role in minimizing the impact on the vertebrae by changing the position and shape of the nucleus according to the movement of the vertebrae.

Most of the nuclei are composed of water (water). As the water content of the nucleus decreases with aging, the discs lose their buffering function and become the causative factor of various spinal diseases accompanied with pain.

For this reason, when performing surgery to remove the severely distorted or incomplete disc, measures should be taken to maintain the spinal gap and prevent the spine from deforming or shaking.

As described above, there is a spinal implant (hereinafter referred to as " prior art ") as shown in Figs.

The prior art first cuts a part of the disk 43 between the vertebrae 41 and the adjacent vertebrae 42 to form a seating space therein and then uses the insertion tool 50 The implant comprising the first support body 11 and the second support body 12 is inserted.

8 (b), the first support body 11 is seated while being folded in the disk 43 by the insertion force of the insertion tool 50, is placed between the vertebrae 41 and the adjacent vertebrae 42 as shown in Fig.

Subsequently, the practitioner mounts another expansion mechanism (not shown) in the insertion tool 50 and then operates the expanding portion 13 disposed between the first support body 11 and the second support body 12 And then expanding in the vertical direction as shown in Fig. 9 (b), thereby forming the lordosis of the subject.

However, in the prior art, as soon as the first support body 11 collides with the inside of the disk 43 as shown in FIG. 8 (b), there arises a problem that it rotates properly against the second support body 12 and is not broken. The second support body 12 may be exposed to a fatal problem in which the second support body 12 is detached from the insertion tool 50. [ In addition, there is a problem that it is difficult to precisely adjust the degree of rotation of the first support body 11, and there is a fear that the angle formed by the first support body 11 and the second support body 12 after rotation is not fixed and is deformed .

In addition, the prior art also has a problem of inefficiency in terms of time and cost in terms of time and equipment, and a series of procedures for preparing, mounting and manipulating a separate expansion device for rhodocis formation.

US Patent 6,193,757 B1 Patent No. 10-1153469

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a minimally invasive spinal implant having joints that can provide convenience of operation and obtain accurate and reliable procedure results.

The present invention is to provide a minimally invasive spinal implant having a joint that allows a user to easily perform the procedure with an intuitive judgment of a practitioner in a relatively simple structure.

Specifically, we provide a minimally invasive spinal implant that can stably support the upper and lower vertebrae by rotating the joints of the spinal implants using a separate device after inserting the spinal implants with minimally invasive procedures .

In order to achieve the above object, according to the present invention, one end is inserted between a vertebra bone of a physician and an adjacent vertebra bone, and the one end and the other end of the vertebral body are relatively positioned relative to an intermediate portion between the one end and the other end A rotatable main body unit; A rotation auxiliary unit provided at an intermediate portion of the main body unit and providing a reference point for relative rotation between the one end and the other end; And an operation unit which is inserted from the other end of the main unit and engages with the pivoting auxiliary unit to implement a relative pivotal motion between the one end and the other end. Implant can be provided.

Here, the main unit is inserted linearly between the vertebrae and the adjacent vertebrae, and is maintained to be deflected at a predetermined angle by the engagement of the operation unit and the pivoting assisting unit.

At this time, the main body unit includes a first support piece, which is first inserted between the vertebrae and the adjacent vertebrae, and one end is rotatably coupled with the other end of the first support member, Wherein the first supporting piece and the second supporting piece are engaged with each other to form an operating space communicated from the other end of the second supporting piece to the inside of the first supporting piece, And the unit is formed at a portion where the other end of the first supporting piece and the one end of the second supporting piece are engaged with each other.

The upper surface of the first support piece is inclined upward from one end of the first support piece toward the other end. The lower surface of the first support piece is inclined downward from one end of the first support piece toward the other end, The upper surface of the second support piece is inclined upwardly from the other end of the second support piece toward the first end, and the lower surface of the second support piece is inclined downward from the other end of the second support piece toward the first end.

The spinal implant for minimally invasive surgery having the joint is disposed on the upper side of the working space and is formed on the upper surface of the other end of the first support piece so as to be stepped, A second upper connecting piece disposed on the upper side of the operating space to form one end of the second supporting piece and having a lower surface in contact with an upper surface of the first upper connecting piece; A first lower connecting piece formed to be stepped on the lower surface of the other end of the supporting piece and to be in contact with one end of the second supporting piece; and a second lower connecting piece disposed on the lower side of the operating space, And a second lower connection piece that is in contact with a lower surface of the lower connection piece, wherein the rotation assisting unit includes: an upper surface of the first upper connection piece; Are respectively formed between the lower face of the convenience, and the second lower connecting piece, the actuating unit is characterized in that inserted between the second support of the first upper connecting piece and the first lower connecting piece from the other end convenience.

The pivoting auxiliary unit includes an upper pivoting piece formed on an upper portion of the middle portion of the main unit and constituting an upper portion of a pivot shaft for pivoting the one end portion and the other end portion of the main unit relative to each other, An insertion pivot assembly inserted from a lower side of the intermediate portion to constitute a lower portion and an intermediate portion of the pivot shaft, the one end portion and the other end portion of the main body unit pivot relative to each other; And a pinion assembly built in the intermediate portion and interlocked with the operation unit and having a first gear that is forward and reverse rotatable along an outer circumferential surface thereof, wherein the center portion of the upper turn piece, the insert pivot assembly, and the pinion assembly are straight .

The rotating auxiliary unit is protruded from the upper surface of the first upper connecting piece, and the outer peripheral surface of the upper rotating piece is engaged with the inner peripheral surface of the upper rotating hole passing through the second upper connecting piece. An insertion pivotal assembly inserted through a lower pivotal hole penetrating through the second lower connection piece and having an upper end disposed at a lower portion of the first upper connection piece; And the lower end is fixed to the upper surface of the first lower connecting piece so as to interlock with the operating unit inserted from the other end of the second supporting piece, A pinion assembly including a first gear engaged with the outer periphery of the pinion assembly, The center of the insertion assembly and the pinion rotational assembly is characterized in that it is arranged in a straight line.

The operation unit includes an insertion bar having a predetermined length to be inserted from the other end of the main body unit and a guide bar formed on the side surface of the one end of the insertion bar along the longitudinal direction of the insertion bar, And a fixing piece extending from the other end of the insertion bar and being seated and fixed in a receiving groove portion formed by being recessed from the other end of the main body unit, When the main body unit is maintained in a straight shape in a state in which the second gear and the first gear start to be engaged with each other, the fixed barrel is in communication with a working space in which the insertion bar is accommodatably formed along the insertion direction of the insertion bar, Is exposed on the outside of the other end of the main body unit, and the second gear and the first gear are engaged with each other, When the full insertion along the work space to maintain a state where the body unit bent at an angle, characterized in that accommodated in the receiving groove.

The operation unit includes an insertion bar having a predetermined length to be inserted into the operation space from the other end of the second support member and a guide bar formed on the side surface of the one end of the insertion bar along the longitudinal direction of the insertion bar, A second gear engaged with the second gear and extending from the other end of the insertion bar and recessed from the other end of the second support member to be seated and fixed in a storage groove communicating with the operation space, The first gear is exposed to the outside of the other end of the second support member when the first support member and the second support member are disposed on a straight line in a state in which the first gear and the second gear are aligned, When the insertion bar is inserted as far as possible along the operating space and the first and second support pieces are folded at a predetermined angle, And a fixing member.

The main body unit, to which the first support piece and the second support piece are coupled, is an artificial disc.

The main body unit is connected to the upper surface of the second support piece and is disposed in parallel with a direction in which the operation unit is inserted from the other end of the main body unit, And a second fixing blade coupled to a lower surface of the second support member and disposed parallel to a direction in which the operation unit is inserted from the other end of the main unit and inserted and fixed from an upper surface of the vertebrae adjacent to the vertebra, And further comprising:

The main body unit is disposed in an operation space formed from the other end of the second support member to the inside of the first support member along the direction in which the operation unit is inserted, (2) a first load supporting portion which is formed toward one end side of the support piece and permits shape deformation with respect to pressure or load applied from the upper surface and the lower surface of the first support piece, and And a second load supporting portion which is formed from the end side toward the other end side of the first supporting piece and permits the shape deformation against the pressure or the load applied from the upper surface and the lower surface of the second supporting piece.

The main body unit, to which the first support piece and the second support piece are coupled, is a cage for union.

The main body unit is communicated with a working space formed from the other end of the second supporting member to the inside of the first supporting member along the direction in which the operating unit is inserted. A first lower union slot through which a first lower union slot is formed and a first lower union slot that communicates with the operation space and penetrates the lower surface of the first support piece to a predetermined size, And a second lower jointing slot communicating with the operating space and penetrating the lower surface of the second support member with a predetermined size.

The main body unit is communicated with a working space formed from the other end of the second supporting member to the inside of the first supporting member along the direction in which the operating unit is inserted, And a second side jointing hole communicating with the operating space and passing through at least one side of both sides of the second support member.

According to the present invention having the above-described configuration, the following effects can be achieved.

First of all, the present invention is relatively simple in operation compared to the prior art in which complicated assembling and assembling operations are cumbersome by making the relative rotation of the one end and the other end of the main body unit be performed by the turning auxiliary unit and the operation unit, It is possible to maximize the convenience of the procedure and acquire accurate and reliable treatment results.

In addition, the present invention allows the operation unit to be engaged with the rotation assisting unit, and the operation is completed only by pushing the operation unit, so that the operation can be easily performed by the intuitive judgment of the operator.

Particularly, the present invention can be utilized not only for the use of an artificial disk but also as a cage for union joint by selecting and changing the structure of the first and second support pieces constituting the main unit, Very good in terms of.

FIG. 1 is a perspective view of a spinal implant according to an embodiment of the present invention. FIG. 1 is a perspective view of a spinal implant according to an embodiment of the present invention. Fig. 1 (b) is a perspective view showing a state in which the vertebrae are inserted between the vertebrae and the adjacent vertebrae by operating the pivoting auxiliary unit and the operation unit in a mutually interlocked manner.
FIG. 2 is a schematic plan view illustrating a procedure of a minimally invasive spinal implant having a joint according to an embodiment of the present invention. Referring to FIG.
3 is an exploded perspective view illustrating the overall structure of a minimally invasive spine implant having a joint according to an embodiment of the present invention.
FIG. 4 is a perspective view illustrating the overall structure of a first support member of a main unit, which is a main part of a minimally invasive surgery spinal implant having a joint according to an embodiment of the present invention.
5 (a) and 5 (b) are views showing the overall structure of a second support member of a main unit, which is a main part of a minimally invasive surgery vertebra implant having joints according to an embodiment of the present invention. 5A is a conceptual view of the bottom view seen from point A of FIG. 5A, respectively.
6A and 6B illustrate the overall appearance and operation of a minimally invasive surgical spine implant with joints according to another embodiment of the present invention. FIG. 6B is a perspective view showing a state in which the vertebrae are inserted between the vertebrae and the neighboring vertebrae by operating the pivoting assisting unit and the operation unit in cooperation with each other.
FIG. 7 is a perspective view showing the overall appearance of a minimally invasive surgical spine implant with joints, and before and after operation according to another embodiment of the present invention, and FIG. 7 (a) And FIG. 7B is a perspective view showing a state in which the body is inserted between the vertebrae and the neighboring vertebrae by operating the pivoting auxiliary unit and the operation unit in an interlocked manner, respectively, before the main body unit is inserted between the adjacent vertebrae .
FIGS. 8 and 9 are conceptual diagrams sequentially illustrating a procedure of a conventional spinal implant.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments described below, but may be embodied in various other forms.

The present embodiments are provided so that the disclosure of the present invention is thoroughly disclosed and that those skilled in the art will fully understand the scope of the present invention.

And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

In addition, throughout the specification, like reference numerals refer to like elements, and the terms (mentioned) used herein are intended to illustrate the embodiments and not to limit the invention.

In this specification, the singular forms include plural forms unless the context clearly dictates otherwise, and the constituents and acts referred to as " comprising (or having) " do not exclude the presence or addition of one or more other constituents and actions .

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows the overall appearance and operation of a minimally invasive surgical spinal implant having joints according to an embodiment of the present invention. FIG. 1 (a) shows the vertebral bone 410 and the adjacent vertebra bone 1B shows a state before insertion of the main body unit 100 between the vertebrae 410 and the vertebra bone 420 by manipulating the rotation assistant unit 200 and the operation unit 300 to interlock with each other, (420), respectively.

FIG. 2 is a schematic plan view illustrating a procedure of a minimally invasive spinal implant having a joint according to an embodiment of the present invention. Referring to FIG.

3 is an exploded perspective view illustrating the overall structure of a minimally invasive spine implant having a joint according to an embodiment of the present invention.

4 is a perspective view showing the overall structure of a first support piece 100a of a main unit 100, which is a main part of a minimally invasive surgery spinal implant having a joint according to an embodiment of the present invention.

FIG. 5 shows the overall structure of the second support piece 100b of the main unit 100, which is a main part of a minimally invasive surgery spinal implant having joints according to an embodiment of the present invention. FIG. 5 (a) And FIG. 5 (b) is a conceptual view of a bottom view seen from the viewpoint A of FIG. 5 (a).

It can be understood that the present invention is a structure including the main body unit 100, the rotation assistant unit 200, and the operation unit 300, as shown in FIG.

The body unit 100 is inserted between the vertebra bone 410 of the subject and the adjacent vertebrae 420 and has one end and the other end relatively rotatable with respect to the intermediate portion between the end and the other end will be.

The rotation assisting unit 200 is formed in the middle portion of the main body unit 100 and provides a reference point of relative rotation between one end and the other end.

The operation unit 300 is inserted from the other end of the main body unit 100 and engages with the rotation assist unit 200 to realize relative rotation between one end and the other end.

Therefore, according to the present invention, the relative rotation between one end portion and the other end portion of the main body unit 100 is performed by the turning aid unit 200 and the operation unit 300, so that the operation is simple, And it is possible to acquire a reliable procedure result.

Since the operation is completed only when the operation unit 300 is engaged with the rotation-assisting unit 200 and the operation unit 300 is pushed in, the present invention can be easily performed by the intuitive judgment of the practitioner .

It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.

2, the main body unit 100 is linearly inserted between the vertebrae 410 and the adjacent vertebrae 420, and is inserted into the main body unit 100 by a predetermined angle As shown in FIG.

First, the main body unit 100 includes a first support piece 100a (see FIGS. 1 to 5, 100c: FIGS. 6 and 7), which is first inserted between the vertebrae 410 and the adjacent vertebrae 420, 1 to 5) in which one end is coupled with the other end of the first support pieces 100a and 100c and is rotatable and the operation unit 300 is inserted from the other end, 100d: see Figs. 6 and 7).

The first support pieces 100a and 100c and the second support pieces 100b and 100d are engaged with each other to communicate with the inside of the first support pieces 100a and 100c from the other ends of the second support pieces 100b and 100d, Thereby forming the working space 101.

At this time, it can be seen that the pivoting assisting unit 200 to be described later is formed at a portion where the other ends of the first support pieces 100a and 100c and one end of the second support pieces 100b and 100d are engaged with each other.

It is preferable that the first support pieces 100a and 100c are formed so that one end itself is round when the first support pieces 100a and 100c are inserted between the vertebrae 410 and the neighboring vertebrae 420 .

The upper and lower surfaces of the first and second support pieces 100a and 100c and the second support pieces 100b and 100d are seated and fixed on the lower surface of the vertebrae 410 and the upper surface of the vertebral bone 420, A plurality of seating ribs 102 in a blade shape may be formed.

The upper surfaces of the first support pieces 100a and 100c are inclined upward from one end of the first support pieces 100a and 100c toward the other end to form a lordosis of the subject, It is preferable that the lower surfaces of the pieces 100a and 100c are inclined downward from one end of the first support pieces 100a and 100c toward the other end.

The upper surfaces of the second support pieces 100b and 100d are inclined upwardly from the other end of the second support pieces 100b and 100d toward the one end for the rhodoid formation of the subject, 100d are preferably formed to be inclined downward from the other end of the second support pieces 100b, 100d toward one end thereof.

1 to 5, the first and second upper connection pieces 113 and 123 and the first and second upper connection pieces 113 and 123 and the first and second upper connection pieces 113 and 123 are formed so as to be capable of relatively rotating operation of the first support piece 100a and the second support piece 100b. And may further include first and second lower connecting pieces 114 and 124.

The first upper connecting piece 113 is disposed on the upper side of the operating space 101 and is formed on the upper surface of the other end of the first supporting piece 100a so as to be stepped and contacts one end of the second supporting piece 100b.

The second upper connecting piece 123 is disposed on the upper side of the operating space 101 to form one end of the second supporting piece 100b and the lower surface contacts the upper surface of the first upper connecting piece 113.

The first lower connecting piece 114 is disposed on the lower side of the operating space 101 so as to be stepped on the lower surface of the first supporting piece 100a and comes into contact with one end of the second supporting piece 100b.

The second lower connecting piece 124 is disposed on the lower side of the operating space 101 to form one end of the second supporting piece 100b and the upper surface thereof is in contact with the lower surface of the first lower connecting piece 114.

Therefore, the pivoting assisting unit 200 to be described later is mounted on the upper surface of the first upper connecting piece 113 and between the first upper connecting piece 113 and the first lower connecting piece 114 and the lower surface of the second lower connecting piece 124 Respectively.

The operation unit 300 to be described later is inserted between the first upper connecting piece 113 and the first lower connecting piece 114 from the other end of the second supporting piece 100b.

On the other hand, the pivoting assisting unit 200 is formed on the upper side of the middle portion of the main body unit 100, and the upper pivoting piece 210 ).

The pivoting assisting unit 200 includes an insertion pivoting assembly 200 which is inserted from below the middle portion of the main body unit 100 and constitutes the lower and middle portions of the pivot shaft, (220).

The pivoting assisting unit 200 includes an insertion pivoting assembly 220 which penetrates the center portion and is accommodated in the middle portion of the main unit 100 and is engaged with the operation unit 300 to form a first gear 231 are formed along the outer circumferential surface of the pinion assembly 230.

More specifically, the upper rotating piece 210 protrudes from the upper surface of the first upper connecting piece 113, and the outer circumferential surface thereof is engaged with the inner peripheral surface of the upper rotating hole 123h penetrating the second upper connecting piece 123 will be.

More specifically, the insertion pivot assembly 220 is inserted from the lower surface of the second lower connection piece 124 through the lower pivot hole 124h penetrating the second lower connection piece 124, (113).

More specifically, the pinion assembly 230 is disposed in the working space 101 between the first upper connecting piece 113 and the first lower connecting piece 114.

That is, the center portion of the pinion assembly 230 is threaded through the insertion pivot assembly 220.

The lower surface of the pinion assembly 230 is fixed to the upper surface of the first lower connecting piece 114.

The pinion assembly 230 includes a first gear member for meshing with the operation unit 300 inserted from the other end of the second support piece 100b and for rotating the first support piece 100a integrally, 231).

Therefore, it can be seen that the central portions of the upper rotating piece 210, the insertion rotating assembly 220, and the pinion assembly 230 are arranged in a straight line.

The pinion assembly 230 includes a seating slot 114s penetrating the first lower connecting piece 114 and communicating with the lower rotating hole 124h, And a seating protrusion 232 protruding from the lower surface of the seating surface 230 in a shape corresponding to the seating slot 114s and having an outer surface engaged with an inner surface of the seating slot 114s.

Thus, the insert pivoting assembly 220 is coupled through the center of the seating pivot 232 and the pinion assembly 230.

In order to provide a coupling structure of the insertion pivot assembly 220, the present invention includes a pivot mounting recess 124g which is depressed in a stepped manner from the lower surface of the second lower connection piece 124 and in which a lower pivot hole 124h is disposed, As shown in FIG.

Here, the lower end of the insertion pivoting assembly 220 is seated on the pivot seating groove 124g and can be rotated integrally with the pinion assembly 230.

At this time, the insertion rotating assembly 220 includes a head portion 221 whose outer circumferential surface is in contact with the inner circumferential surface of the rotation receiving groove 124g and is seated in the rotation receiving groove 124g.

The insertion rotation assembly 220 includes a rotation step 222 protruding stepwise from the upper surface of the head portion 221 and having an outer circumferential surface contacting the inner circumferential surface of the lower rotatable hole 124h.

The insertion pivot assembly 220 includes a fixed shaft portion 223 protruding from the upper surface of the rotation step portion 222 by a predetermined length and having a screw thread formed on the outer circumferential surface thereof to be screwed with the center portion of the pinion assembly 230.

The operation unit 300 includes an insertion bar 310 having a predetermined length inserted from the other end of the main body unit 100 and an insertion bar 310 extending along the longitudinal direction of the insertion bar 310 A second gear 320 which is formed to be engaged with the first gear 231 of the rotation assisting unit 200 and a second gear 320 which extends from the other end of the insertion bar 310 and which is formed in a recessed shape from the other end of the main body unit 100 And a fixing piece 330 that is fixedly seated in the receiving groove 130.

That is, the insertion bar 310 is inserted into the operation space 101 from the other end of the second support piece 100b.

The second gear 320 is formed along the longitudinal direction of the insert bar 310 at one end of the insert bar 310 and is adapted to be interlocked with the first gear 231.

The fixing piece 330 extends from the other end of the insertion bar 310 and is fitted into the receiving groove 130 which is recessed from the other end of the second supporting piece 100b and communicates with the operating space 101. [ .

The storage groove 130 communicates with the operation space 101 in which the insertion bar 310 is accommodated in the body unit 100 along the insertion direction of the insertion bar 310.

At this time, when the first support piece 100a and the second support piece 100b are arranged in a straight line in a state where the second gear 320 and the first gear teeth 231 start to be engaged, And is exposed to the outside of the other end of the second support piece 100b.

The fixing piece 330 is inserted into the operating space 101 as much as possible while the second gear 320 and the first gear 231 are engaged with each other and the insertion bar 310 is inserted as far as the first supporting piece 100a, 2 is received in the storage groove 130 when the support piece 100b is folded at a certain angle.

The fixing ribs 331 protruding from one side of the fixing piece 330 and the fixing grooves 131 which are recessed in a shape corresponding to the fixing ribs 331 are formed on one side of the storage groove part 130 The fixing ribs 331 are fixedly engaged with the fixing groove 131 so that the second supporting pieces 100b can be maintained in a bent state with respect to the first supporting pieces 100a.

1 to 5, the main unit 100 having the first and second support pieces 100a and 100b coupled thereto may be provided in the form of an artificial disk.

That is, the main body unit 100 is provided with first and second fixed portions (not shown) so that the main body unit 100 can be more firmly fixed between the vertebrae 410 and the adjacent vertebrae 420, It is preferable to further include the blades 141 and 142.

That is, the first fixed blade 141 is coupled to the upper surface of the second support piece 100b and is disposed in parallel to the direction in which the operation unit 300 is inserted from the other end of the main unit 100, And is inserted and fixed from the underside of the bone 410.

The second fixed blade 142 is coupled to the lower surface of the second support piece 100b and disposed parallel to the direction in which the operation unit 300 is inserted from the other end of the main unit 100, And the upper surface of the adjacent vertebrae 420.

The upper and lower surfaces of the first fixing blade 141 and the first and second fixing blades 141 and 142 are fixed to the vertebra bone 410 and the adjacent vertebrae 420, And two fixed ribs 143 protruding from the lower surface of the two fixed blades 142, respectively.

At this time, the present invention can be applied to the vertebra bone 410 and the neighboring vertebra bones 420, so that the first and second fixed blades 141 and 142 can be more firmly fixed to the vertebrae bone 420 adjacent to the vertebrae bone 410. [ 420 may further include at least one fused hole 144 that passes through at least one of the first fixed blade 141 and the second fixed blade 142, respectively.

On the other hand, the main body unit 100 is attached to the first support piece 100a and the second support piece 100b so as to flexibly cope with loads and shocks along the spine of the person to be trained, And may further include first and second load supporting portions 150 and 160, respectively.

The first load supporting part 150 is disposed in the working space 101 formed from the other end of the second supporting part 100b to the inside of the first supporting part 100a along the direction in which the operation unit 300 is inserted And is configured to extend from one end side of the first support piece 100a toward one end side of the second support piece 100b to allow a shape deformation against a pressure or a load applied from the upper and lower surfaces of the first support piece 100a .

The second load supporting portion 160 is disposed in the working space 101 and is formed toward the other end side of the first supporting piece 100a from the other end side of the second supporting piece 100b, 100b to allow the shape deformation with respect to the pressure or load applied from the upper and lower surfaces.

4, the upper surface of the first support piece 100a is formed on the lower surface of the first upper plate 111 forming the upper surface of the first support piece 100a, And a first upper arch groove 151 which is convexly recessed in an arc shape.

The first load supporting portion 150 is formed on the upper surface of the first lower plate 112 forming the lower surface of the first supporting piece 100a in a circular arc shape convex downward toward the lower surface of the first supporting piece 100a And includes a recessed first lower arch groove 152.

The first load supporting portion 150 extends from the one end edge of the first upper plate 111 and the first lower plate 112 and is connected to each other in an arc shape and forms one end portion of the first supporting piece 100a And a main load supporting rib 153 which is made of a resin.

The first load supporting portion 150 includes a first upper extending portion 154 that extends from the other end of the first upper arch groove 151 so as to bend toward one end side of the second supporting piece 100b .

The first load supporting portion 150 includes a first lower extending portion 155 that extends from the other end of the first lower arch groove 152 so as to bend toward one end side of the second supporting piece 100b .

The first load supporting portion 150 includes a first auxiliary load supporting rib 156 extending from the other end edge of the first upper extending portion 154 and the first lower extending portion 155 and connected to each other in an arc- ).

5, the second load supporting part 160 is provided on the lower surface of the second upper plate 121 forming the upper surface of the second supporting part 100b, And a second upper arch groove 161 which is convexly concaved in an upward arc toward the upper surface.

The second load supporting portion 160 is formed on the upper surface of the second lower plate 122 forming the lower surface of the second supporting piece 100b in a circular arc shape convex downward toward the lower surface of the second supporting piece 100b And includes a recessed second lower arch groove 162.

The second load supporting portion 160 includes a second upper extending portion 164 that extends from the other end of the second upper arch groove 161 so as to bend toward the other end of the first supporting piece 100a do.

The second load supporting portion 160 includes a second lower extending portion 165 that extends from the other end of the second lower arch groove 162 to the other end of the first supporting piece 100a do.

The second load supporting portion 160 includes a second auxiliary load supporting rib 166 extending from the other end edge of the second upper extending portion 164 and the second lower extending portion 165 and connected to each other in an arc- ).

Therefore, according to the structural characteristics of the first and second load supporting portions 150 and 160, the load and pressure applied from the upper and lower portions of the vertebrae 410 and the adjacent vertebrae 420, It is possible to flexibly cope with the torsional stress to be applied as an artificial disk while allowing a certain degree of shape deformation, that is, elastic deformation.

It should be noted that the main body unit 100 in which the first support piece 100c and the second support piece 100d are combined may be provided in the form of a cage for union of the joints as shown in FIGS.

6 is a perspective view of a spinal implant for minimally invasive surgery with joints according to another embodiment of the present invention.

6 (a) shows a state before the main unit 100 is inserted between the vertebrae 410 and the adjacent vertebrae 420, FIG. 6 (b) shows a state before the main unit 100 is inserted between the turning auxiliary unit 200 and the operation unit FIG. 4 is a perspective view showing a state in which the vertebrae are inserted between the vertebrae 410 and the adjacent vertebrae 420 by interlocking and manipulating the vertebrae 300.

FIG. 7 is a perspective view showing the overall appearance and operation of the minimally invasive surgery spinal implant with joints according to another embodiment of the present invention, and FIG.

7 (a) shows a state before the main unit 100 is inserted between the vertebrae 410 and the adjacent vertebrae 420, FIG. 7 (b) shows a state before the main unit 100 is inserted between the turning auxiliary unit 200 and the operation unit FIG. 4 is a perspective view showing a state in which the vertebrae are inserted between the vertebrae 410 and the adjacent vertebrae 420 by interlocking and manipulating the vertebrae 300.

6 and 7, when the operation unit 300 is inserted, the main body unit 100 moves from the other end of the second support piece 100d to the first support piece 100c And further includes a first upper union slot 171a penetrating the upper surface of the first support piece 100c with a predetermined size.

The main body unit 100 further includes a first lower fusion splicing slot 172a communicating with the operation space 101 and penetrating the lower surface of the first support piece 100c with a predetermined size.

The main body unit 100 further includes a second upper union slot 171b communicating with the operation space 101 and passing through the upper surface of the second support piece 100d with a predetermined size.

The main body unit 100 further includes a second lower fusion splicing slot 172b which communicates with the operation space 101 and penetrates the lower surface of the second support piece 100d with a predetermined size.

Here, the operating space 101 is provided with a first upper union slot 171a, a first lower union slot 172a, a second upper union slot 171b, and a second lower union slot 172b, A ballast or a bone substitute (not shown) may be inserted to promote bone tissue formation through bone union between the vertebral bone 410 and the adjacent vertebrae 420.

At this time, the main body unit 100 is connected to the operation space 101 formed from the other end of the second support piece 100d to the inside of the first support piece 100c along the direction in which the operation unit 300 is inserted The first support piece 100c may further include a first side jointing hole 181 formed on at least one side of the first support piece 100c.

The main body unit 100 may further include a second side jointing hole 182 communicating with the operation space 101 and having at least one or more through holes on both sides of the second support piece 100d.

Therefore, when the main body unit 100 is a bone union cage, the first support piece 100c and the second support piece 100d are connected to the lower surface of the vertebrae 410 of the patient and the vertebra bone 410 adjacent to the vertebra bone 410, (Not shown) formed at a predetermined depth on the upper surface of the base plate 420.

The vertebrae 410 are inserted through the first side jointing hole 181 and the second side jointing hole 182 of the first support piece 100c and the second support piece 100d accommodated in the support piece receiving groove, And the bone tissue regenerated from the neighboring vertebrae 420 is connected to the donor's own bone meal or bone replacement material accommodated in the operation space 101, so that the bone union can be performed.

As described above, the present invention provides a minimally invasive surgical spinal implant having joints that provide convenience of operation and enable accurate and reliable operation results to be obtained.

It will be apparent to those skilled in the art that many other modifications and applications are possible within the scope of the basic technical idea of the present invention.

100 ... main body unit
100a, 100c, ...,
100b, 100d, ...,
101 ... working space
102 ... seat rib
111 ... first top plate
112 ... first bottom plate
113 ... first upper connecting piece
114 ... first lower connecting piece
114s ... seat slot
121 ... second top plate
122 ... second bottom plate
123 ... second upper connecting piece
123h ... Upper rotating hole
124 ... second lower connecting piece
124g ... Recessed seat groove
124h ... Lower rotating hole
130 ... storage groove
131 ... fixing groove
141 ... first fixed blade
142 ... second fixed blade
143 ... fastening ribs
144 ... Fused hole
150 ... first load supporting member
151 ... first upper arch groove
152 ... first lower arch groove
153 ... Main load bearing rib
154 ... first upper extension
155 ... first lower extension
156 ... First auxiliary load supporting rib
160 ... second load supporting member
161 ... second upper arch groove
162 ... second lower arch groove
164 ... second upper extension
165 ... second lower extension
166 ... second auxiliary load supporting rib
171a ... first upper union slot
171b ... second upper union slot
172a ... the first lower union slot
172b ... second lower union slot
181 ... first side union hole
182 ... 2nd side Bonding hole
200 ... Auxiliary auxiliary unit
210: upper rotating piece
220 ... insert pivot assembly
221 ... head portion
222 ... rotation step
223 ... fixed shaft portion
230 ... pinion assembly
231 ... 1st gear
232 ... seated stone
300 ... operation unit
310 ... insert bar
320 ... 2nd gear
330 ... fixed
331 ... fixed rib
410 ... spine bone
420 ... neighboring vertebrae

Claims (15)

A main body unit having one end inserted between the vertebrae of the subject and the adjacent vertebrae and the one end and the other end relatively pivotable about an intermediate portion between the one end and the other end;
A rotation auxiliary unit provided at an intermediate portion of the main body unit and providing a reference point for relative rotation between the one end and the other end; And
And an operation unit which is inserted from the other end of the main body unit and engages with the rotation assistant unit to implement a relative rotation operation between the one end portion and the other end portion, .
The method according to claim 1,
Wherein the main body unit is linearly inserted between the vertebrae and the adjacent vertebrae, and is maintained at a predetermined angle by the engagement of the operation unit and the pivoting assisting unit. Spinal implant.
The method according to claim 1,
The main unit includes:
A first support piece inserted first between the vertebrae and the adjacent vertebrae,
Wherein one end portion is rotatable in association with the other end portion of the first support member and includes a second support piece from which the operation unit is inserted from the other end portion,
Wherein the first supporting piece and the second supporting piece are engaged with each other to form an operation space communicated from the other end of the second supporting piece to the inside of the first supporting piece,
Wherein the pivoting auxiliary unit is formed at a portion where the other end of the first supporting member and the one end of the second supporting member are engaged with each other.
The method of claim 3,
Wherein an upper surface of the first support piece is inclined upwardly from one end of the first support piece to an opposite end of the first support piece and the lower surface of the first support piece is inclined downward from one end of the first support piece toward the other end,
Wherein an upper surface of the second support piece is formed so as to be inclined upward from the other end of the second support piece toward one end thereof and a lower surface of the second support piece is inclined downwardly from the other end of the second support piece toward the one end, A spinal implant for minimally invasive surgery.
The method of claim 3,
The minimally invasive surgical spine implant having the joint includes:
A first upper connecting piece disposed on the upper side of the working space and formed on the upper surface of the other end of the first supporting piece so as to be in contact with the one end of the second supporting piece,
A second upper connecting piece disposed on the upper side of the operating space to form one end of the second supporting piece and having a lower surface in contact with an upper surface of the first upper connecting piece,
A first lower connecting piece which is disposed on the lower side of the operating space and is formed on a lower surface of the other end of the first supporting piece so as to be in contact with one end of the second supporting piece,
And a second lower connection piece disposed on the lower side of the operation space to form one end of the second support piece and the upper surface of the second lower connection piece is in contact with a lower surface of the first lower connection piece,
Wherein the pivoting auxiliary unit is formed on an upper surface of the first upper connecting piece, between the first upper connecting piece and the first lower connecting piece, and on a lower surface of the second lower connecting piece,
Wherein the operation unit is inserted between the first upper connecting piece and the first lower connecting piece from the other end of the second supporting piece.
The method according to claim 1,
The rotation assistance unit includes:
An upper rotating piece formed on an upper portion of an intermediate portion of the main body unit and constituting an upper portion of a rotating shaft in which the one end portion and the other end portion of the main body unit pivot relative to each other,
An insertion pivot assembly inserted from a lower side of the main body unit to constitute a lower portion and an intermediate portion of the pivot shaft, the one end portion and the other end portion of the main body unit pivot relative to each other,
And a pinion assembly including a first gear engaged with the operating unit and capable of forward and reverse rotations, the pinion assembly being formed along an outer circumferential surface of the insert unit,
Wherein the central portion of the upper rotating piece, the insertion rotating assembly, and the pinion assembly are disposed in a straight line.
The method of claim 5,
The rotation assistance unit includes:
An upper rotating piece protruding from an upper surface of the first upper connecting piece and having an outer circumferential surface coupled to an inner circumferential surface of the upper rotating hole passing through the second upper connecting piece,
An insertion pivotal assembly inserted through a lower pivotal hole penetrating through the second lower connecting piece from the lower surface of the second lower connecting piece and having an upper end disposed below the first upper connecting piece;
Wherein the first lower connecting piece is disposed in the working space between the first upper connecting piece and the first lower connecting piece, the central portion is screwed through the insertion rotating assembly, and the lower surface is fixed to the upper surface of the first lower connecting piece, And a pinion assembly having a first gear engaged with the operating unit inserted from the other end and configured to rotate together with the first supporting member in the forward and reverse directions,
Wherein the central portion of the upper rotating piece, the insertion rotating assembly, and the pinion assembly are disposed in a straight line.
The method according to claim 1,
The operation unit includes:
An insertion bar having a predetermined length inserted from the other end of the main body unit,
A second gear formed on the side surface of the one end of the insert bar along the longitudinal direction of the insert bar and intermeshed with the first gear of the turn assist unit,
And a fixing piece extending from the other end of the insertion bar and being seated and fixed in a receiving groove portion which is recessed from the other end of the main body unit,
Wherein the accommodation groove portion communicates with an operation space in which the insertion bar is accommodatably formed in the main body unit along the insertion direction of the insertion bar,
Wherein,
When the main unit is maintained in a straight line shape in a state in which the second gear and the first gear are engaged with each other, the main unit is exposed outside the other end of the main unit,
Wherein the second gear is housed in the accommodating groove when the insertion gear is inserted into the operating space as much as possible while the second gear is engaged with the first gear and the main body unit is maintained at a predetermined angle. Spinal implant for minimally invasive surgery.
The method of claim 7,
The operation unit includes:
An insertion bar having a predetermined length inserted into the working space from the other end of the second support member,
A second gear formed on the side surface of the one end of the insert bar along the longitudinal direction of the insert bar and meshed with the first gear,
Wherein the second gear is fixed to a receiving groove portion which is extended from the other end of the insertion bar and is recessed from the other end of the second supporting member and communicates with the operating space, When the first support piece and the second support piece are arranged on a straight line, the second gear is exposed to the outside of the other end of the second support piece, and the insertion gear is engaged with the first gear, And a fixing piece inserted into the accommodation groove part when the first support piece and the second support piece are folded at a predetermined angle.
The method of claim 3,
Wherein the main body unit to which the first support piece and the second support piece are coupled is an artificial disc.
The method of claim 10,
The main unit includes:
A first fixed blade coupled to an upper surface of the second support piece and disposed parallel to a direction in which the operation unit is inserted from the other end of the main unit and inserted and fixed from the lower surface of the vertebral body,
Further comprising a second fixing blade coupled to a lower surface of the second support member and disposed parallel to a direction in which the operation unit is inserted from the other end of the main unit and inserted and fixed from an upper surface of the vertebrae adjacent to the vertebrae Wherein the spinal implant is a spinal implant for minimally invasive surgery.
The method of claim 10,
The main unit includes:
Wherein the second supporting member is disposed in a working space formed from the other end of the second supporting member to the inside of the first supporting member along a direction in which the operating unit is inserted, A first load supporting part formed to allow a shape deformation with respect to a pressure or a load applied from an upper surface and a lower surface of the first support piece,
The second support piece is disposed in the operation space and is configured to be directed from the other end side of the second support piece toward the other end side of the first support piece so as to allow a shape deformation against a pressure or a load applied from the upper surface and the lower surface of the second support piece Further comprising a second load bearing portion on the distal end of the spinal implant.
The method of claim 3,
Wherein the main body unit to which the first support piece and the second support piece are coupled is a bone union cage.
14. The method of claim 13,
The main unit includes:
And a first upper union slot formed in the upper surface of the first support piece and communicating with a working space formed in the first support piece from the other end of the second support piece along a direction in which the operation unit is inserted, and,
A first lower union slot in communication with the operating space, the first lower union slot extending through the lower surface of the first support member to a predetermined size,
A second upper union slot in communication with the operating space, the second upper union slot extending through the upper surface of the second support piece to a predetermined size,
Further comprising a second lower fusion splice slot communicating with the working space and penetrating the lower surface of the second support piece with a predetermined size.
14. The method of claim 13,
The main unit includes:
And a second side surface of the first supporting member, wherein the first side surface of the first supporting member is in communication with a working space formed from the other end of the second supporting member along the direction in which the operation unit is inserted, and,
Further comprising a second side jointing hole communicating with the operating space, the second side jointing hole passing through at least one side of both sides of the second support member.
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US6193757B1 (en) 1998-10-29 2001-02-27 Sdgi Holdings, Inc. Expandable intervertebral spacers
KR101153469B1 (en) 2003-12-09 2012-06-05 비이더만 모테크 게엠베하 ＆ 코. 카게 Height-adjustable intervertebral implant

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EP2517676B1 (en) 2011-04-29 2017-04-05 Medacta International S.A. Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument
US9463099B2 (en) 2013-03-15 2016-10-11 Expanding Orthopedics Inc. Orthopedic expandable devices

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US6193757B1 (en) 1998-10-29 2001-02-27 Sdgi Holdings, Inc. Expandable intervertebral spacers
KR101153469B1 (en) 2003-12-09 2012-06-05 비이더만 모테크 게엠베하 ＆ 코. 카게 Height-adjustable intervertebral implant

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