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WO2023195610A1 - Dispositif de cage de fusion intersomatique extensible de manière unidirectionnelle - Google Patents

Dispositif de cage de fusion intersomatique extensible de manière unidirectionnelle Download PDF

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Publication number
WO2023195610A1
WO2023195610A1 PCT/KR2023/001318 KR2023001318W WO2023195610A1 WO 2023195610 A1 WO2023195610 A1 WO 2023195610A1 KR 2023001318 W KR2023001318 W KR 2023001318W WO 2023195610 A1 WO2023195610 A1 WO 2023195610A1
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WIPO (PCT)
Prior art keywords
side body
protrusion
inclined surface
rail
fusion cage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2023/001318
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English (en)
Korean (ko)
Inventor
김현성
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2023195610A1 publication Critical patent/WO2023195610A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to a unidirectional expandable intervertebral body fusion cage device, and more specifically, to stably support the vertebrae by expanding the area occupied by the cage after being easily inserted between a vertebra and an adjacent vertebra with minimal invasiveness during the procedure. It relates to a unidirectional expandable intervertebral body fusion cage device that allows.
  • the incision area is large and the amount of bleeding that occurs during surgery is large, so the patient's recovery after surgery is slow, and a large scar remains after surgery, which interferes with the patient's life after surgery.
  • MIS minimally invasive surgery
  • Minimally invasive surgery is a surgical technique that involves making only the minimum amount of incisions on the patient's body surface using specially designed long and thin surgical tools to minimize the incisions required for surgery.
  • This minimally invasive surgery has the advantage of having fewer incisions required for the procedure and significantly less bleeding during the procedure than open surgery, so the patient's recovery period after surgery is quick and the scars that are exposed to the outside are small. Recently, the number of procedures has increased significantly. It is increasing.
  • the disc that exists between the vertebrae functions as a joint, and as the spine moves, the position and shape of the nucleus pulposus inside the disc change, playing a very important role in minimizing the impact on the spine.
  • nucleus pulposus is made up of moisture (water), but as we age, the amount of water gradually decreases, causing the disc to lose its buffering function.
  • One way to treat diseases caused by discs is to remove the damaged intervertebral disc and replace the space between two adjacent vertebrae with a prosthetic material, the so-called cage.
  • the prosthetic material restores spinal function by restoring the original distance between two adjacent vertebral bodies, which is the original height of the intervertebral disc.
  • Surgical methods to insert such prosthetics between the vertebrae include ALIF (Anterior Lumbar Interbody Fusion), which opens the abdomen and inserts the prosthetic material from the front of the spine, and LLIF (Lateral Lumbar Interbody Fusion), which inserts the prosthetic material through the side area.
  • ALIF anterior Lumbar Interbody Fusion
  • LLIF Lateral Lumbar Interbody Fusion
  • TLIF Transforaminal Lumbar Interbody Fusion
  • PLIF Posterior Lumbar Interbody Fusion
  • Patent No. 10-1674490 Prior art for inserting prosthetics between vertebrae includes Patent No. 10-1674490, ‘Space expansion cage device for minimally invasive surgery.’
  • Registered Patent No. 10-1674490 is a main body inserted between a vertebra and an adjacent vertebra and provided on both sides of the main body, and the area occupied by the main body inserted between the vertebra and the adjacent vertebra. It includes a variable unit that changes the main body, a first osseointegration space penetrating the front side of the main body, and a first osseointegration space penetrating each side of the main body and communicating with the first osseointegration space.
  • a communication slot a second osseointegration space portion that penetrates the main body and is disposed on the rear side of the first osseointegration space portion, and a second osseointegration space portion that penetrates the main body and is disposed between the first osseointegration space portion and the second osseointegration space portion.
  • an operating space portion each penetrating through both sides of the main body and communicating with the operating space portion and the second osseointegration space portion, a second communication slot to which the variable unit is coupled, and a second communication slot on the rear end surface of the main body.
  • variable unit protrudes from both sides of the main body and includes an insertion slot into which an insertion block maintaining the increased area is inserted, and the first osseointegration space is provided with an autologous bone fragment or bone substitute artificial material. It is characterized by being filled.
  • variable unit is stored in the main body and inserted into the vertebrae and adjacent vertebrae, and then when the insertion block is inserted, it is pulled out from both sides of the main body and between the vertebrae and adjacent vertebrae. It increases the support area, but the variable unit is an auxiliary means and is very different from the structure of the main body, so there is a problem with durability during long-term use.
  • the height of the variable unit is different from the height of the main body, causing stagnation between the vertebrae and neighboring vertebrae. There is a problem that it is difficult to completely prevent the (subsidence) phenomenon.
  • Patent No. 10-2097624, ‘Space Expandable Intervertebral Body Fusion Cage Device’ Another prior art is Patent No. 10-2097624, ‘Space Expandable Intervertebral Body Fusion Cage Device’.
  • Registered Patent No. 10-2097624 states that the variable unit is provided on both left and right sides of the main body, and when inserted between the first and second vertebrae, it is inserted in close contact with the left and right sides of the main body, respectively. do. The variable unit is inserted between the first and second vertebrae and when the rear end is pushed, the joint between the front end and the rear end bends to the outside of the main body, and the parts that were in close contact with the left and right sides are connected to the main body. is separated from
  • Registered Patent No. 10-2097624 shows that when the joint part of the variable unit is bent outward from the main body, the parts that were closely attached to both the left and right sides are separated from the main body, creating a lot of space between the main body and the variable unit. Due to the space between the main body and the variable unit, there is a problem of stagnation between the vertebrae and neighboring vertebrae during long-term use.
  • the present invention was invented to improve the problems described above.
  • the first side body of the intervertebral body fusion cage device used in the lumbar spine, cervical spine, vertebral body, etc. is coupled to the rear of the second side body, and then inserted into the rear using a cage insertion tool.
  • the coupled first side body is pushed forward, the first side body moves next to the second side body along the rail formed on the side of the front second side body, and the second side body located in the front moves to the right and the first side body moves to the right.
  • the body is moved forward so that the first side body and the second side body are positioned side by side with each other to provide a unidirectional expandable intervertebral body fusion cage device that increases the support area between the vertebrae and adjacent vertebrae.
  • the unidirectional expandable intervertebral body fusion cage device forms a first inclined surface from the right side to the front, a first side body in which a protrusion is formed on the first inclined surface, and a first side body from the left side to the rear. It includes a second side body forming a second inclined surface, and on the second inclined surface, a rail to which the protrusion is coupled is formed, and when the first side body is pushed from behind, the first inclined surface is in contact with the second inclined surface and the protrusion While moving on the rail, the first side body moves forward, and the second side body is pushed to the right and moves.
  • the front portion of the first side body in contact with the second inclined surface rear of the second side body is formed with a front protrusion consisting of a protrusion body and a protrusion head larger in diameter than the protrusion body, and the second inclined surface rear of the second side body is formed at the front.
  • a protrusion rail of a certain length is formed to prevent the protrusion head from falling out while moving when the first side body is pushed in.
  • the front part of the first side body in contact with the second inclined surface at the rear of the second side body is formed with a front protrusion and a locking part
  • the second inclined surface of the second side body is formed with a through hole into which the locking part of the first side body is inserted.
  • a semicircular rotation groove is formed in the second side body so that the front protrusion and the locking part can rotate when the first side body is rotated after inserting the locking part into the through hole.
  • the first side body When the first side body is rotated by a first angle, the first side body is fixed by the locking unit so that it does not separate from the rear of the second side body, and after further rotating the first side body by a second angle, the first side body is A front protrusion rail of a certain length is formed on the second inclined surface at the rear of the second side body to prevent the protrusion head from falling out as the front protrusion moves when pushing in.
  • the right side extending from the first inclined surface of the first side body is formed parallel to the longitudinal direction of the body, and a side protrusion consisting of a protruding body and a protruding head larger than the diameter of the protruding body is formed, and on the second inclined surface of the second side body
  • the left side that continues is formed parallel to the longitudinal direction of the body, and a side protrusion rail of a certain length is formed to prevent the protrusion head from falling out while moving when the first side body is pushed in after the side protrusion is inserted.
  • the end of the side protrusion rail is blocked to prevent the protrusion head of the side protrusion from moving further forward.
  • the height of the first side body and the second side body are the same, and the two adjacent bodies (the first side body and the second side body) are positioned next to the second side body. Since there is no empty space between the vertebrae (body), stagnation between the vertebrae and neighboring vertebrae can be completely prevented.
  • the first side body When the first side body is pushed and moved forward using a cage insertion tool, it moves along the side rail of the second side body in the front, and the two side bodies are positioned side by side on each other, so complex surgical tools are required. Minimally invasive surgery can be performed simply without using.
  • FIG. 1 is a plan view and a partial enlarged view of the unidirectional expandable intervertebral body fusion cage device of the present invention
  • Figure 2 shows the rear of the second side body and the front view of the first side body (A) when the unidirectional expandable intervertebral body fusion cage device is first coupled, and the first side body is rotated 45 degrees after fastening to the rear of the second side body.
  • the rear view of the second side body and the front view of the first side body in a tightly coupled state (B) the first side body is joined to the second side body and rotated 90 degrees so that the protrusion of the first side body becomes the second side body. Appearance when moving on the rail of the side body (C),
  • FIG. 3 is a perspective view of the second side body
  • Figure 4 is a view (A) when the first side body is coupled to the second side body and enters between the vertebrae. After the second side body is positioned between the vertebrae, the first side body is rotated 90 degrees and the first side body is inserted into the space between the vertebrae. The projection of the body moves forward along the rail of the second side body (B), and the projection of the first side body moves forward along the rail of the second side body to complete the procedure (C)
  • the unidirectional expandable intervertebral body fusion cage device consists of a first side body 100 and a second side body 200.
  • the first side body 100 and the second side body 200 are harmless to the human body and are made of titanium, titanium alloy, or polyether ether ketone (PEEK), depending on whether structural strength or elasticity is prioritized. Compose.
  • the first side body 100 is pushed to the side of the second side body 200 along an inclined plane from the rear and is finally located next to the second side body 200.
  • the second side body 200 is pushed to the right and moves as the first side body 100 pushes in from behind.
  • the first side body 100 and the second side body 200 are operated between the vertebrae and the adjacent vertebrae using the cage insertion tube 300, and the first side body ( The procedure is performed using a separate surgical tool (not shown) that pushes the rear of the 100).
  • the first side body 100 forms a first inclined surface 150 forward from the right side, and a protrusion 110 is formed on the first inclined surface 150.
  • the second side body 200 forms a second inclined surface 250 rearward from the left side, and the second inclined surface 250 has a rail 210 to which the protrusion 110 of the first side body 100 is coupled. is formed
  • the protrusion 110 moves along the rail 210 while the first inclined surface 150 is in contact with the second inclined surface 250, and the first side body 100 moves forward, and the second side body 200 is pushed to the right and moves.
  • the front part of the first side body 100 which is in contact with the second inclined surface 250 at the rear of the second side body 200, has a protrusion body 111 and a spherical protrusion head 112 larger than the diameter of the protrusion body 111.
  • a front protrusion 110 is formed, and the second inclined surface 250 at the rear of the second side body 200 forms a protrusion head 112 when the first side body 100 is pushed in after the front protrusion 110 is inserted.
  • a protruding rail 210 of a certain length is formed to prevent it from falling out while moving.
  • the front portion of the first side body 100 which is in contact with the second inclined surface 250 at the rear of the second side body 200, is formed with a front protrusion 110 and a locking portion 120, and the front portion of the second side body 200
  • the second inclined surface 250 is formed with a through hole 220 into which the locking part 120 of the first side body 100 is inserted.
  • the locking portion 120 is shaped like a square pillar and is formed at a thickness that cannot be inserted into the protruding rail 210.
  • the front protrusion 110 and the locking part 120 are rotatable.
  • a semicircular rotation groove 230 is formed. Only one through hole 220 is formed at the rear of the second side body 200 into which the locking portion 120 of the first side body 100 is inserted, and the front protrusion 110 of the first side body 100 is It is not inserted into the through hole, but is drawn into the semicircular rotation groove 230 when the first side body 100 is rotated to the right.
  • An example of rotating the first side body 100 to the right has been described, but if the positions of the first inclined surface 150 of the first side body 100 and the second inclined surface 250 of the second side body 200 are changed, The first side body 100 is rotated to the left to couple it.
  • the first side body 100 After inserting the locking part 120 into the through hole 220 and rotating the first side body 100 by a first angle, the first side body 100 is moved to the second side body 200 by the locking part 120. ) It is fixed so that it cannot be separated from the rear.
  • the first angle is preferably 45 degrees.
  • the locking part 120 is inserted into the through hole 220.
  • the locking portion 120 moves along the semicircular rotation groove 230 and moves to the first side body ( 100) is fixed so as not to be separated from the rear of the second side body 200.
  • the locking portion 120 first moves along the semicircular rotation groove 230, and the front protrusion 110 follows it, enters the semicircular rotation groove 230 from the outside, and rotates along the rotation groove 230. do. Even if the first side body 100 is rotated 45 degrees to the right so that the locking part 120 is in a position facing the front protrusion rail 210, it does not enter the narrow front protrusion rail 210 due to the square pillar shape. This prevents movement forward and backward within the semicircular rotation groove 230.
  • FIG. 2(C) after further rotating the first side body 100 by the second angle, when the first side body 100 is pushed in, the front protrusion 110 moves and the protrusion head 112 A front protruding rail 210 of a certain length is formed on the second inclined surface 250 at the rear of the second side body 200 to prevent it from falling off.
  • the second angle is preferably 90 degrees. If the state shown in FIG. 2(B) is rotated 90 degrees to the right, the state shown in FIG. 2(C) is reached, and the front protrusion 110 faces the front protrusion rail 210 of the second side body 200.
  • Figure 2(C) shows the front protrusion 110 ready to move on the front protrusion rail 210.
  • Figure 4(B) shows the front protrusion 110 of the first side body 100 moving forward along the front protrusion rail 210 of the second side body 200.
  • the right side extending from the first inclined surface 150 of the first side body 100 is formed parallel to the longitudinal direction of the body 100, and includes a protrusion body 131 and a protrusion body 131.
  • a side protrusion 130 consisting of a protrusion head 132 larger than the diameter is formed.
  • the left side extending from the second inclined surface 250 of the second side body 200 is formed parallel to the longitudinal direction of the body 200, and when the first side body 100 is pushed in after the side protrusion 130 is inserted.
  • a side protrusion rail 240 of a certain length is formed to prevent the protrusion head 132 from falling off while moving.
  • Figure 4 (C) shows that as the first side body 100 is pushed further, the side protrusion 130 formed on the right side of the body of the first side body 100 becomes a side protrusion formed on the left side of the body of the second side body 200.
  • the first side body 100 and the second side body 200 are shown positioned side by side.
  • the end of the side protrusion rail 240 is blocked to prevent the protrusion head 132 of the side protrusion 130 from moving further forward.
  • the end portion of the front protrusion rail 210 of the second side body 200 is a front protrusion rail with the end of the rail widened so that the protrusion head 112 of the front protrusion 110 exits the rail. Forms a departure surface 211.
  • the protrusion head 112 of the front protrusion 110 moves along the front protrusion rail 210 and the protrusion head 112 exits the front protrusion rail exit surface 211, it is located on the right side of the first side body 100.
  • the protrusion head 132 of the side protrusion 130 enters the side protrusion rail 240 through the side protrusion rail insertion surface 240, and the side protrusion 130 moves all the way along the side protrusion rail 240 to perform the procedure. It is finished.
  • the locking part 120 is inserted into the through hole 220 and then rotated 45 degrees to the right to fasten the first side body 100 to the rear of the second side body 200. do.
  • the first side body 100 moves forward so that the front protrusion 110 of the first side body 100 touches the front protrusion rail of the rear inclined surface 250 of the second side body 200. While moving on 210, the side protrusion 130 on the right side of the first side body 100 continues to move forward on the side protrusion rail 240 on the left side of the second side body 200. The procedure is completed when the first side body 100 moves to the blocked end of the side protrusion rail 240 and can no longer move forward.
  • the present invention combines the first side body, which constitutes an intervertebral body fusion cage device for procedures on the lumbar spine, cervical spine, and vertebral body, to the rear of the second side body, and then uses a cage insertion tool to attach the first side body to the rear.
  • the first side body moves to the left of the second side body along the rail formed on the left side of the second side body in the front, and the second side body moves to the right and is supported between the vertebrae and adjacent vertebrae.
  • the basic goal is to provide a unidirectional expandable intervertebral body fusion cage device that increases the area and completely prevents stagnation between the vertebrae and the adjacent vertebrae by not creating an empty space between the first side body and the second side body. You can see that it is being done with a technical mindset.

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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)

Abstract

La présente invention concerne un dispositif de cage de fusion intersomatique extensible de manière unidirectionnelle comprenant : un premier corps latéral ayant une première surface inclinée formée vers l'avant, à partir de la surface droite de celui-ci, et ayant une saillie formée sur la première surface inclinée ; et un second corps latéral ayant une seconde surface inclinée formée vers l'arrière, à partir de la surface gauche de celui-ci, et ayant un rail, auquel la saillie est couplée, formée sur la seconde surface inclinée, le premier corps latéral se déplaçant vers l'avant, lorsque le premier corps latéral est poussé vers l'intérieur à partir de l'arrière de celui-ci, tandis que la saillie se déplace le long du rail dans un état dans lequel la première surface inclinée est en contact avec la seconde et le second corps latéral étant poussé et déplacé vers la droite de celle-ci. Selon la présente invention, lorsque le premier corps latéral se déplace vers l'avant à l'aide d'un outil d'insertion de cage, chaque saillie formée sur la surface inclinée du premier corps latéral et les surfaces latérales d'un corps se déplace le long de chaque rail formé sur la surface inclinée du second corps latéral et les surfaces latérales du corps, de telle sorte que le second corps latéral se déplace vers la droite et le premier corps latéral est positionné sur la gauche du second corps latéral et ainsi, une chirurgie minimalement invasive peut être facilitée sans l'exigence d'un outil chirurgical complexe.
PCT/KR2023/001318 2022-04-08 2023-01-30 Dispositif de cage de fusion intersomatique extensible de manière unidirectionnelle Ceased WO2023195610A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220043692A KR102511114B1 (ko) 2022-04-08 2022-04-08 단방향 확장형 추간체 유합 케이지 장치
KR10-2022-0043692 2022-04-08

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WO2023195610A1 true WO2023195610A1 (fr) 2023-10-12

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WO (1) WO2023195610A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060142858A1 (en) * 2004-12-16 2006-06-29 Dennis Colleran Expandable implants for spinal disc replacement
KR20070086420A (ko) * 2004-11-26 2007-08-27 스파인 소루션 아이앤씨 추간 임플란트
KR20200072142A (ko) * 2018-12-12 2020-06-22 주식회사 메디너스 척추체간 확장형 케이지
JP2021078593A (ja) * 2019-11-15 2021-05-27 合碩生技股▲分▼有限公司 多段式拡開装置
KR20220017093A (ko) * 2020-08-04 2022-02-11 임병철 추간 케이지

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101674490B1 (ko) 2015-07-10 2016-11-09 주식회사 메드릭스 최소 침습 수술용 공간 확장형 케이지 장치
KR102097624B1 (ko) 2018-07-25 2020-04-06 주식회사 메드릭스 공간 확장형 추간체 유합 케이지 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070086420A (ko) * 2004-11-26 2007-08-27 스파인 소루션 아이앤씨 추간 임플란트
US20060142858A1 (en) * 2004-12-16 2006-06-29 Dennis Colleran Expandable implants for spinal disc replacement
KR20200072142A (ko) * 2018-12-12 2020-06-22 주식회사 메디너스 척추체간 확장형 케이지
JP2021078593A (ja) * 2019-11-15 2021-05-27 合碩生技股▲分▼有限公司 多段式拡開装置
KR20220017093A (ko) * 2020-08-04 2022-02-11 임병철 추간 케이지

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