KR20090009903A

KR20090009903A - Open dorsal adjusting connector

Info

Publication number: KR20090009903A
Application number: KR1020087028678A
Authority: KR
Inventors: 앨런 레자치
Original assignee: 워쏘우 오르쏘페딕 인코포레이티드
Priority date: 2008-11-24
Filing date: 2006-04-27
Publication date: 2009-01-23

Abstract

An apparatus for connecting an implant with an elongated support comprises a body, a collet, an annular ring member, a washer, and a nut in one embodiment. The body defines a first channel configured for receipt of the rod and defines a second channel extending through the body. The collet is positionable in the second channel and defines an aperture configured for receipt of at least a portion of the implant. The ring member is annular in shape with a gap and defines an aperture sized to allow insertion of at least a portion of the collet therethrough. The washer is positionable adjacent the second channel and has a concave surface configured to contact the body to allow pivoting of the collet relative to the body. The nut is positionable adjacent the washer and operable to connect with the collet to move the collet within the second channel. Movement of the collet is operable to expand the ring member and contract the collet around at least a portion of the implant to secure the implant at a desired position.

Description

OPEN DORSAL ADJUSTING CONNECTOR}

본 발명은 이식체 및 척추로드의 연결을 위한 개방 척추 조절 커넥터 장치에 관한 것이다. 본 장치는 척추 손상 또는 변형 교정에 유용하며, 제한적이지는 않지만 특히 척추 높이 조절이 가능할 뿐 아니라 이식체 및 로드 사이의 상호 전적인 (exclusive) 연결을 위한 장치에 관한 것이다.The present invention relates to an open spinal control connector device for the connection of an implant and a spinal rod. The device is useful for correcting spinal injuries or deformations, and is not limited but particularly relates to a device for the exclusive connection between the implant and the rod as well as the spine height control.

정형외과 수술 영역에서, 뼈 위치를 고정하기 위한 이식체 사용은 공지되어 있다. 이러한 방식으로, 부러진 뼈 치료가 촉진되고 기형 또는 기타 손상이 교정될 수 있다. 예를 들면, 척추 수술에서 이러한 이식체를 (a) 척추측만성 곡률을 포함한 척추의 비이상적인 곡률 교정 (b) 부러진 또는 기타 손상된 척추뼈에 적당한 간격을 유지하고 지지를 제공하기 위하여 및 (c) 척주에 기타 치료를 수행하기 위한 이유를 포함하여 여러 이유로, 척추뼈에 배치하는 것은 공지되어 있다.In the area of orthopedic surgery, the use of implants to fix bone location is known. In this way, broken bone treatment can be facilitated and malformations or other damages can be corrected. For example, in spinal surgery, such implants may be used to (a) correct non-ideal curvature of the spine, including scoliotic curvature, (b) maintain adequate spacing and support for broken or other damaged vertebrae, and (c) It is known to place it on the vertebrae for several reasons, including reasons for performing other treatments on the spinal column.

전형적인 이식체 및 연결시스템은 여러 부품을 포함하며, 이들은 유용하며 특정의 기타 부품들과 연관될 수 있다. 뼈 나사, 훅, 및 클램프는 고정기구로 공지되며, 이들은 척추로드와 같은 지지 및/또는 안정 부재를 포함한 연결시스템 및 뼈 사이 연결로서 특정 뼈와 연결되거나 접합될 수 있다. 이러한 시스템에서, 일련의 둘 또는 그 이상의 나사는 둘 또는 그 이상의 대상되는(to be instrumented) 척추뼈에 연결될 수 있다. 로드는 나사 내부에 또는 나사에 결합되어 배치될 수 있으며, 또는 로드 및 나사를 연결하는 연결기구 내에 배치될 수 있고, 연결은 조여진다. 이러한 방식으로 단단한 지지 구조체는 척추뼈에 고정되고, 로드는 특정 위치에서 척추뼈를 유지하여 척추뼈 기형 또는 손상의 교정 또는 치료를 촉진하는 지지력을 제공한다.Typical implants and connection systems include several components, which are useful and can be associated with certain other components. Bone screws, hooks, and clamps are known as fasteners, which can be connected or joined to a particular bone as a connection between the bone and a connection system including support and / or stabilizing members such as spinal rods. In such a system, a series of two or more screws may be connected to two or more to be instrumented vertebrae. The rod may be disposed within or coupled to the screw, or may be disposed within a connecting mechanism connecting the rod and the screw, the connection being tightened. In this way, the rigid support structure is secured to the vertebrae, and the rod provides support for promoting cure or treatment of vertebral malformations or injuries by holding the vertebrae in a certain position.

본 발명 원리에 대한 이해를 목적으로 도면에 도시된 예들을 참조하고 소정 용어가 이들을 기술하는데 사용될 것이다. 그러나 이에 의해 청구범위를 제한하는 것은 아니며, 본 발명과 관련된 분야의 기술자에게 통상 착상될 수 있는 여기에 기술된 기구 및 본 발명 원리의 또 다른 용도에 대한 어떠한 변경 및 변형도 고려되는 것으로 이해되어야 한다.For the purpose of understanding the principles of the present invention, reference is made to the examples shown in the drawings and certain terminology will be used to describe them. It is to be understood, however, that no limitation of the claims is to be construed, and that any modifications or variations to the apparatus described herein and other uses of the principles of the invention that would normally be envisioned to those skilled in the art to which the invention pertains may be considered. .

도 1을 참조하면, 연결조립체(20)의 예가 도시된다. 연결조립체(20)는 나사식 앵커부를 가지는 샨즈-타입 나사와 같은 이식체(22)를 척추로드와 같은 연장부재(24)로 연결한다. 도시된 구현예에서, 이식체(22)는 척추뼈(26)로 삽입되고 부재(24)는 원하는 위치에 하나 이상의 척추뼈를 고정하기 위하여 사용된다. 그러나 연결조립체(20)와 관련되어 사용되는 이식체는 적당한 뼈 앵커 또는 뼈-체결기구일 수 있다. 또한 부재(24)는 바, 커넥터 또는 기타 정형외과적 구조물과 같은 적당한 연장부재일 수 있다. 또한, 부재(24)는 원하는 길이를 가질 수 있다. Referring to FIG. 1, an example of a linkage assembly 20 is shown. The linkage assembly 20 connects the implant 22, such as a shanz-type screw, with a threaded anchor to an extension member 24, such as a spinal rod. In the embodiment shown, the implant 22 is inserted into the vertebrae 26 and the member 24 is used to secure one or more vertebrae in the desired position. However, the implant used in connection with the linkage assembly 20 may be a suitable bone anchor or bone-fastening mechanism. Member 24 may also be a suitable extending member, such as a bar, connector, or other orthopedic structure. In addition, member 24 may have a desired length.

도 2를 참조하면, 도시된 구현예의 연결조립체(20)는 연장부재(24)를 수용하기 위한 채널(32)을 형성하는 두 개의 상향부(31)를 가지는 몸체(30)를 포함한다. 채널(32) 폭은 부재(24) 직경보다 약간 크거나 거의 같아서, 부재(24)가 채널(32)로 쉽게 삽입되도록 허용하고, 부재(24) 외형을 상쇄하도록 하며 동일 채널(32)에서 다양한 직경 또는 폭의 부재의 사용이 가능하도록 한다. 다른 예에서, 채널(32)은 부재(24)의 스냅-피트가 가능하게 형성된다. 또한 몸체(30)는 조립체(20)의 추가 요소들을 수용하도록 형성된, 몸체를 관통하는 홀(34)을 형성한다.　 몸체(30)는 이식체(22)의 선회를 가능하게 하는 오목 연장부(36)를 포함하며, 이하 더욱 설명될 것이다. 연결조립체(20)은 이식체(22)를 수용하는 콜릿(38), 홀(34)에 삽입되는 링부재(40), 와셔(42) 및 너트(44)를 더욱 포함한다. With reference to FIG. 2, the connection assembly 20 of the illustrated embodiment includes a body 30 having two upward portions 31 forming a channel 32 for receiving the extension member 24. The channel 32 width is slightly larger or approximately equal to the diameter of the member 24, allowing the member 24 to be easily inserted into the channel 32, offsetting the member 24 appearance and varying in the same channel 32. It is possible to use a member of diameter or width. In another example, the channel 32 is formed to enable snap-fit of the member 24. Body 30 also defines a hole 34 through the body, which is configured to receive additional elements of assembly 20. The body 30 includes a concave extension 36 that enables pivoting of the implant 22 and will be described further below. The connection assembly 20 further includes a collet 38 for receiving the implant 22, a ring member 40 inserted into the hole 34, a washer 42, and a nut 44.

도 3은 도시된 구현예의 구성들을 더욱 설명하기 위한 연결조립체(20)의 분해도이다. 채널(32)은 부재(24)가 길이축 L1을 따라 연장되는 길이축 L1을 가지는 실질적인 U-형상 이다. 상향부(31)는 채널(32)에서 부재(24)를 고정하기 위하여 보유부재(미도시)와 나사 결합되는 내부 나사산부(33, inner threaded portion)를 포함 할 수 있다. 내부 나사산부(33)는 역각 (reverse-angle) 나사산, 즉 여기에 참조로 포함되는 미국 특허 6,296,642에서 개시된 전면이 하향, 내향되는 나사산을 포함할 수 있다. 일 구현예에서, 보유 부재는 외부 나사산을 가지는 원통형 고정나사이나, 달리 다른 종류의 고정 또는 잠금기구일 수 있다. 부재(24)가 채널(32)과 스냅-피트되도록 사이즈된 예에서, 부재(24)는 채널(32)에서 그 자체로 고정 된다. 그러나, 부재(24)는 본 분야 기술자가 고려 할 수 있는 다른 적당한 방법으로 고정될 있다는 것을 이해하여야 한다. 도시된 바와 같이, 채널(32)은 부재(24)의 상부-로딩을 수용하기 위하여 길이축 L1을 따라 최소한 부분적으로 개방된다. 채널(32)은 본 분야의 기술자가 고려할 수 있는 다른 형상 및 크기 일 수 있다. 3 is an exploded view of the connection assembly 20 to further illustrate the components of the illustrated embodiment. The channel 32 is substantially U-shaped with a length axis L1 in which the member 24 extends along the length axis L1. The upper portion 31 may include an inner threaded portion 33 that is screwed with the retaining member (not shown) to secure the member 24 in the channel 32. The internal thread 33 may comprise a reverse-angle thread, ie a thread whose front face is downward, inward as disclosed in US Pat. No. 6,296,642, which is incorporated herein by reference. In one embodiment, the retaining member is a cylindrical set screw with an external thread, but could alternatively be another type of set or lock mechanism. In the example where the member 24 is sized to snap-fit with the channel 32, the member 24 is fixed by itself in the channel 32. However, it should be understood that member 24 may be secured in other suitable ways that would be considered by one skilled in the art. As shown, the channel 32 is at least partially open along the length axis L1 to accommodate the top-loading of the member 24. Channel 32 may be of other shapes and sizes that would be appreciated by those skilled in the art.

홀(34)은 길이축 L2를 따라 몸체(30)를 관통하여 연장되며, 도시된 예에서 원형 단면 치수를 가진다. 일 예에서 홀(34)은 채널(32)에 실질적으로 수직하며, 상향부(31)에 실질적으로 평행하다. 그러나 홀(34)은 다른 단면 형상, 배향 및 치수를 포함할 수 있다는 것을 이해 할 것이다. 채널(32) 및 홀(34)은 도시 예에서 연통되지 않는다. 또한, 채널(32, 34)은 연결조립체(20) 기능을 유지하는 방식에 있어서 서로 달리 배치 될 수 있다. The hole 34 extends through the body 30 along the longitudinal axis L2 and has a circular cross-sectional dimension in the example shown. In one example, the hole 34 is substantially perpendicular to the channel 32 and substantially parallel to the upward portion 31. However, it will be appreciated that the holes 34 may include other cross-sectional shapes, orientations and dimensions. Channel 32 and hole 34 are not in communication in the illustrated example. In addition, the channels 32 and 34 may be arranged differently in a manner of maintaining the function of the connection assembly 20.

도시된 구현예에서, 콜릿(38)은 근단 (proximal end, 51)의 최소한 일부를 따라서 나사산부(50)를 포함한다. 나사산부(50)는 하나 또는 그 이상의 평부(52)를 포함한다. 일 예에서, 콜릿(38)은 외부를 따라 서로 직경 방향으로 실질적으로 반대측에 배치된 두 개의 평부(52)를 포함한다. 구멍(53)이 콜릿(38)을 따라 연장된다. 또한 콜릿(38)은 말단(55)에 인접하여 볼록부(54)를 포함하며, 이의 기능은 하기 더욱 상세하게 설명될 것이다. 또한, 콜릿(38)은 하나 또는 그 이상의 슬롯(56)을 포함한다. 일 예에서, 콜릿(38) 원주 주위로 동일하게 배치되며 구멍(53)에 평행한 4개의 슬롯(56)이 있다. 콜릿(38)은 평부(52)를 제외하고는 원형 단면 치수를 가지는 원통형상이다. 도시된 구현예에서, 콜릿(38) 볼록부(54)에서의 외부 단면 치수는 콜릿(38)의 다른 지점에서의 외부 단면 치수보다 크다. 콜릿(38)은 홀(34), 링부재(40), 와셔(42), 너트(44) 내로 맞추어져 쉽게 움직이도록 크기와 형상이 형성된다. 그러나, 다른 예에서 콜릿(38)은 다른 형상 또는 크기일 수 있다. 링부재(40)는 환상이며 링부재(40)의 확장 및 수축을 가능하게 하는 갭(60)을 가지고 나사식 내부(62)를 포함한다. 나사식 내부(62)는 링부재(40)을 콜릿(38) 일부 주위에 배치할 수 있도록 콜릿(38)의 나사부(50)과 나사 채결하도록 형성 된다. 링부재(40)는 비응력에서의 또는 자연적인 외부 직경 D1, 즉 링부재(40)가 수축 (갭-폐쇄) 또는 확장 (갭-개방) 응력 하에 있지 않을 때 측정된 직경 D1을 가진다. 링부재(40)은 콜릿(38)의 나사부(50)의 외부직경 D3보다 약간 큰 내부 직경 D2를 가지고 있어 링부재(40)을 콜릿(38)과 체결 시킨다. 도시된 구현예에서, 와셔(42)는 몸체(30)의 연장부(36)를 따라 병진되는 오목 하면(64)을 포함하며, 몸체(30)에 대하여 콜릿(38) 및 이식체(22)의 선회와 같은 운동을 허용한다. 너트(44)는 콜릿(38)의 나사부(50)과 나사 결합되도록 형성된 나사식 내부(68)를 포함한다. In the embodiment shown, the collet 38 includes a thread 50 along at least a portion of the proximal end 51. Threaded portion 50 includes one or more flat portions 52. In one example, the collet 38 comprises two flat portions 52 disposed substantially opposite in diameter in each other along the outside. The hole 53 extends along the collet 38. The collet 38 also includes a convex portion 54 adjacent the end 55, the function of which will be described in more detail below. The collet 38 also includes one or more slots 56. In one example, there are four slots 56 equally disposed about the circumference of the collet 38 and parallel to the hole 53. The collet 38 is cylindrical with a circular cross-sectional dimension except for the flat portion 52. In the illustrated embodiment, the external cross sectional dimension at the collet 38 convex portion 54 is greater than the external cross sectional dimension at another point of the collet 38. The collet 38 fits into the hole 34, the ring member 40, the washer 42, the nut 44, and is formed in size and shape so as to easily move. However, in other examples collets 38 may be of other shapes or sizes. The ring member 40 is annular and includes a threaded interior 62 with a gap 60 that enables expansion and contraction of the ring member 40. The threaded interior 62 is formed to thread the threaded portion 50 of the collet 38 so that the ring member 40 can be disposed around a portion of the collet 38. The ring member 40 has a diameter D1 measured at non-stress or natural outer diameter D1, ie when the ring member 40 is not under shrinkage (gap-close) or expansion (gap-open) stress. The ring member 40 has an inner diameter D2 slightly larger than the outer diameter D3 of the threaded portion 50 of the collet 38 to fasten the ring member 40 to the collet 38. In the illustrated embodiment, the washer 42 includes a concave bottom 64 which translates along an extension 36 of the body 30, with the collet 38 and the implant 22 relative to the body 30. Allow exercise like turning. The nut 44 includes a threaded interior 68 formed to thread into the threaded portion 50 of the collet 38.

도 4를 참조하면, 몸체(30), 너트(44), 와셔(42), 링부재(40), 및 콜릿(38)이 조립된 커넥터 기구(20) 단면이 도시된다. 도4에서 도시된 바와 같이, 링부재(40)은 오목면(70)을 포함한다. 일 예에서, 오목면(70)은 링부재(40) 내부 하면에 위치된다. 오목면(70)은 커넥터 기구(20)가 작동되는 동안 콜릿(38)의 볼록부(54)와 접촉되도록 형성되며, 이하 더욱 상세하게 설명될 것이다. Referring to FIG. 4, there is shown a cross section of the connector mechanism 20 in which the body 30, the nut 44, the washer 42, the ring member 40, and the collet 38 are assembled. As shown in FIG. 4, the ring member 40 includes a concave surface 70. In one example, the concave surface 70 is located on the lower surface inside the ring member 40. The concave surface 70 is formed to be in contact with the convex portion 54 of the collet 38 while the connector mechanism 20 is operating, and will be described in more detail below.

도 5는 갭(60) 및 나사식 내부(62)의 예를 보이는 링부재(40)의 평면도이다. 링부재(40)은 콜릿(38)일부를 수용하도록 형성된 구멍(61)을 형성한다. 상기와 같이, 링부재(40)의 나사식 내부(62)는 콜릿(38)의 나사부(50)과 나사 결합되도록 형성되어 링부재(40)안으로 콜릿(38)의 삽입이 가능하도록 한다. 5 is a plan view of a ring member 40 showing an example of a gap 60 and a threaded interior 62. The ring member 40 forms a hole 61 formed to receive a portion of the collet 38. As described above, the threaded interior 62 of the ring member 40 is formed to be screwed with the threaded portion 50 of the collet 38 to enable insertion of the collet 38 into the ring member 40.

도 6은 내부 평면(72)을 보이는 와셔(42) 평면도이다. 와셔(42)의 평면(72)은 콜릿(38)의 평부(50)와 이웃하거나 접촉되도록 형성되어 몸체(30)의 홀(34)안에서 콜릿(38)의 회전을 방지한다. 도시된 구현예에서, 두 개의 평면(72)이 있다. 그러나 평면 (72)은 두 개보다 많거나 적을 수 있고 바람직하게는 와셔(42)의 평부(72) 수는 콜릿(38)의 평부(52) 수와 동일한 것이다. 6 is a plan view of the washer 42 showing the inner plane 72. The plane 72 of the washer 42 is formed to be adjacent to or in contact with the flat portion 50 of the collet 38 to prevent rotation of the collet 38 in the hole 34 of the body 30. In the embodiment shown, there are two planes 72. However, the plane 72 may be more or less than two and preferably the number of flats 72 of the washer 42 is the same as the number of flats 52 of the collet 38.

도 1-6을 참고하여, 척추분절을 포함한 수술에 대하여 연결조립체(20)의 동작 및 사용을 설명할 것이다. 원형 링부재(40)은 콜릿(38) 주위에 배치된다. 일 예에서, 링부재(40)의 나사식 내부(62)는 콜릿(38)의 나사부(50)주위에 나사 체결되어 볼록부(54)에 가까운 콜릿(38)주위에 또는 인접하게 위치된다. 그러나, 원형 링부재(40) 및 콜릿(38)은 본 분야의 기술자에 의해 고려될 수 있는 다른 방식으로 연결 될 수 있음을 이해하여야 한다. 링부재(40)이 연결된 콜릿(38)은 몸체(30)내 홀(34)로 삽입된다. 선택적으로, 링부재(40)는 홀(34)내에서 배치되고 콜릿(38)은 링부재(40) 및 홀(34)내로 실질적으로 동시에 삽입 될 수 있다. 와셔(42) 및 너트(44)는 몸체(30)의 홀(34)를 통하여 연장되는 콜릿(38) 일부 주위에 위치된다. 다른 예에서, 와셔(42) 및 너트(44)는 이식체(22)가 삽입된 후 콜릿(38)주위에 배치된다. 조립체(20)는 수술에 사용되기 전에 조립될 수 있다. 그러나 다른 예에서, 연결조립체(20)는 수술 동안 조립될 수 있다.　Referring to Figures 1-6, the operation and use of the linkage assembly 20 for surgery involving spinal segments will be described. Circular ring member 40 is disposed around collet 38. In one example, the threaded interior 62 of the ring member 40 is screwed around the threaded portion 50 of the collet 38 and positioned around or adjacent to the collet 38 close to the convex portion 54. However, it should be understood that the circular ring member 40 and the collet 38 may be connected in other ways that may be considered by those skilled in the art. The collet 38 to which the ring member 40 is connected is inserted into the hole 34 in the body 30. Optionally, ring member 40 may be disposed within hole 34 and collet 38 may be inserted into ring member 40 and hole 34 substantially simultaneously. Washer 42 and nut 44 are positioned around a portion of collet 38 that extends through hole 34 of body 30. In another example, washer 42 and nut 44 are disposed around collet 38 after implant 22 is inserted. Assembly 20 may be assembled prior to use in surgery. However, in other instances, the linkage assembly 20 may be assembled during surgery.

환자 병태 또는 손상 치료를 위하여 시술자는 본 분야에서 공지된 방식, 예를 들면 절개 및 조직 뒷당김을 통하여 수술부위로 도달할 수 있다. 예를 들면, 가로돌기에 횡측으로 조직이 절개되는　손상 영역 위 중간선 절개와 같은 개방을 통하여 또는 다른 수술에 의해 수술부위로 도달되면, 시술자는 뼈 나사와 같은 하나 또는 그 이상의 이식체를 병태 경감 또는 개선을 위하여 수축 또는 늘림이 필요한 인접 또는 가까운 척추 뼈에 연결할 수 있다. 예를 들면, 척추뼈, 예를 들면 뿌리에 예비 홀이 만들어지고 나사는 삽입되거나 달리 둘 또는 그 이상의 척추뼈에 연결될 수 있다. 일 예에서, 이식체(22)는 원하는 위치에서 척추뼈(26)과 같은 뼈 구조체에 삽입된다. 이식체(22)의 나사부는 원하는 깊이까지 뼈 속으로 나사 체결될 수 있다. 이식체(22)는, 콜릿(38)이 이식체(22)의 원하는 부분을 둘러싸는 지점까지 콜릿(38)의 천공(53)에 수용 된다. 이식체(22)는 콜릿(38)의 삽입 이전 또는 이후에 뼈 구조체에 삽입될 수 있다는 것을 이해하여야 한다. 또한, 이식체(22)는 콜릿(38)에 여러 위치에서 배치될 수 있으며, 예를 들면 근단(51)에서부터 상당한 정도가 연장되거나 또는 근단(51)에서 이식체(22)가 거의 연장되지 않을 것이다. 연결조립체(20)는 이식체(22)를 따라 척추뼈(26)에서 무수히 많은 수의 거리에 배치될 수 있다. 와셔(42)는 길이축 L2에 횡단하여 몸체(30)에 대하여 이식체(22) 및 콜릿(38)을 선회 시킬 수 있으며, 이것은 와셔(42)의 오목 하면(64)이 몸체(30)의 연장부(36)를 따라 이동할 수 있기 때문이다. 즉, 와셔(42)는 이식체(22)가 몸체(30)에 대하여 어떠한 각의 위치에도 배치 될 수 있도록 한다. 너트(44)는 콜릿(38)의 나사부(50)에 나사 체결되어 이식체(22)를 원하는 각 위치(angular position)에 고정시킨다. 너트(44)를 조이면 콜릿(38)을 홀(34)내로 이동시키고 몸체(30)에 대하여 와셔(42)를 접촉 고정시킨다. 콜릿(38)의 이러한 이동은 링부재(40)를, 링부재(40)가 홀(34) 내면과 접촉하는 제한 지점까지 확장시킨다. 링부재(40)의 확장은 콜릿(38)의 볼록부(54)가 링부재(40) 내로 이동하기 때문이다. 링부재(40)가 제한 지점에 도달되면, 콜릿(38)의 추가적인 링부재(40)로의 이동은 이식체(22)주위에서 슬롯(56)에 의한 콜릿(38)의 수축을 유발시킨다. 링부재(40)의 오목면(70)은 콜릿(38)의 볼록부가 링부재(40)내로 움직이기에 용이하도록 한다. 이식체(22)주위로 콜릿(38)이 수축되면 이식체(22)는 원하는 각 및/또는 병진 위치에서 잠긴다. 이후, 부재(24)는 몸체(30)의 채널(32)에 배치된다. 채널(32)은, 부재(24)가 홀(34)의 길이축 L2에 평행한 방향으로 채널(32)에 로딩되도록 형성된다. 또한 보유부재가 몸체(30)의 채널(32)에 수용되어 부재(24)를 고정할 수 있다. 또한, 부재(24)는 도1에 도시된 바와 같이 다른 척추뼈에 삽입된 이식체를 가지는 다른 연결조립체에 수용되어 척추분절을 고정시킬 수 있다. For the treatment of a patient condition or injury, the operator can reach the surgical site through methods known in the art, such as incisions and tissue pullbacks. For example, when the trachea reaches the surgical site through an opening, such as a midline incision over an injured area where tissue is laterally cut in the transverse projections, the operator may mitigate one or more implants such as bone screws. Or to adjacent or near vertebral bones requiring contraction or stretching for improvement. For example, preliminary holes can be made in the vertebrae, for example roots, and screws can be inserted or otherwise connected to two or more vertebrae. In one example, implant 22 is inserted into a bone structure, such as vertebra 26, at a desired location. The threads of the implant 22 can be screwed into the bone to the desired depth. The implant 22 is received in the perforation 53 of the collet 38 to the point where the collet 38 surrounds the desired portion of the implant 22. It should be understood that the implant 22 may be inserted into the bone structure before or after the insertion of the collet 38. In addition, the implant 22 may be disposed at various positions in the collet 38, for example, extending substantially from the proximal end 51 or hardly extending the implant 22 at the proximal end 51. will be. The linkage assembly 20 may be disposed at an infinite number of distances from the vertebrae 26 along the implant 22. The washer 42 can pivot the implant 22 and collet 38 relative to the body 30 transverse to the longitudinal axis L2, which causes the concave bottom 64 of the washer 42 to rest against the body 30. This is because it can move along the extension 36. That is, the washer 42 allows the implant 22 to be placed at any angle with respect to the body 30. The nut 44 is screwed into the threaded portion 50 of the collet 38 to fix the implant 22 in the desired angular position. Tightening the nut 44 moves the collet 38 into the hole 34 and secures the washer 42 against the body 30. This movement of the collet 38 extends the ring member 40 to the limiting point at which the ring member 40 contacts the inner surface of the hole 34. The expansion of the ring member 40 is because the convex portion 54 of the collet 38 moves into the ring member 40. Once the ring member 40 reaches the limit point, movement of the collet 38 to the additional ring member 40 causes contraction of the collet 38 by the slots 56 around the implant 22. The concave surface 70 of the ring member 40 facilitates the convex portion of the collet 38 to move into the ring member 40. When collet 38 is contracted around implant 22, implant 22 is locked at the desired angle and / or translational position. The member 24 is then disposed in the channel 32 of the body 30. The channel 32 is formed such that the member 24 is loaded into the channel 32 in a direction parallel to the length axis L2 of the hole 34. In addition, the holding member may be received in the channel 32 of the body 30 to fix the member 24. In addition, member 24 may be housed in another linkage assembly having an implant inserted into another vertebra, as shown in FIG. 1, to fix the spinal segment.

도 7을 참조하면, 다른 구현예의 분해도가 도시되며, 동일 참조부호는 앞서 논의된 동일 요소들을 언급한다. 연결조립체(120)는 홀(134)을 형성하고, 길이축 L3을 따라 연장되는 측면-로딩 채널(132)를 정의하는 상향부(131)를 포함하는 몸체(130)를 포함한다. 홀(134)을 길이축 L4를 따라 몸체(130)를 관통하여 연장되며 원형 단면 치수를 가진다. 또한, 일 예에서, 홀(134)은 채널(132)와 실질적으로 수직하다. 연결조립체(20)과 유사하게 연결조립체(120)의 도시 예는 콜릿(38), 링부재(40), 와셔(42), 및 너트(44)를 포함한다. 연결조립체(120)는 채널(132)과 연통하는 홀(140)을 더욱 포함한다. 홀(140)은 보유부재(142)를 수용하도록 형성된다. 보유부재(142)는 부재(24)를 채널(132)에 고정 시키도록 조작된다. 일 예에서 보유부재(142)는 외부 나사산을 가지는 원통 형상의 고정나사이다. 다른 예에서, 홀(140)은 없고 보유부재(142)는 개구(143)를 통하여 채널(132)에 수용된다. 그러나 부재(24)는 채널(32)와 관련하여 논의된 바와 같이 본 분야의 기술자가 고려할 수 있는 다른 적당한 방법에 의해 채널(132)에 고정될 수 있다는 것을 이해하여야 한다. 측면-로딩 채널(132)은, 일 예에서, 부재(24)가 홀 134의 길이축 L4에서 실질적으로 수직한 방향으로 채널(132)에 로딩 되도록 형성된다. Referring to FIG. 7, an exploded view of another embodiment is shown, wherein like reference numerals refer to like elements discussed above. The connector assembly 120 includes a body 130 that forms a hole 134 and includes an upward portion 131 defining a side-loading channel 132 extending along the length axis L3. The hole 134 extends through the body 130 along the length axis L4 and has a circular cross-sectional dimension. Also, in one example, the hole 134 is substantially perpendicular to the channel 132. Similarly to the linkage assembly 20, the illustrated example of the linkage assembly 120 includes a collet 38, a ring member 40, a washer 42, and a nut 44. The connection assembly 120 further includes a hole 140 in communication with the channel 132. The hole 140 is formed to accommodate the holding member 142. Retention member 142 is manipulated to secure member 24 to channel 132. In one example, the holding member 142 is a cylindrical fixing screw having an external thread. In another example, the hole 140 is absent and the retaining member 142 is received in the channel 132 through the opening 143. However, it should be understood that member 24 may be secured to channel 132 by any other suitable method that one of ordinary skill in the art would consider, as discussed in connection with channel 32. The side-loading channel 132 is formed in one example such that the member 24 is loaded into the channel 132 in a direction substantially perpendicular to the length axis L4 of the hole 134.

다른 예에서, 링부재(40)은 없으며 콜릿(38)의 홀(34) 및/또는 홀(134)내로의 이동은 이식체(22) 주위로 콜릿(38)을 고정시키도록 작동된다. 다른 예에서, 너트(44) 및/또는 와셔(42)는 본 분야의 기술자에 의해 고려될 수 있는 기타 조임 기구로 대체될 수 있다. In another example, there is no ring member 40 and movement of the collet 38 into the hole 34 and / or the hole 134 is operative to secure the collet 38 around the implant 22. In another example, the nut 44 and / or washer 42 may be replaced with other tightening mechanisms that may be considered by one skilled in the art.

커넥터 기구의 다양한 요소들은 티타늄, 스테인리스 강, 소정의 세라믹스 또는 플라스틱 또는 기타와 같은 생체적합성 재료로 구성된다. 본 발명은 도면 및 상기 상세한 설명에서 도시되고 상세히 기술되었으나 예시적인 목적이고 본질을 제한하지 않는다. 단지 바람직한 예들만이 도시되고 기재되었으며 본 발명의 사상 내에 있는 모든 변경 및 변형은 보호되는 것이 바람직하다는 것을 이해하여야 한다.The various elements of the connector mechanism consist of a biocompatible material such as titanium, stainless steel, certain ceramics or plastics or the like. The invention has been shown and described in detail in the drawings and above description, but is for illustrative purposes and does not limit the nature thereof. It is to be understood that only preferred examples are shown and described and that all changes and modifications within the spirit of the invention are desired to be protected.

도 1은 본 발명의 일 구현예에 따른 척추뼈에 대한 연결조립체 사시도이다.1 is a perspective view of the connection assembly for the vertebrae in accordance with an embodiment of the present invention.

도 2는 도 1에 도시된 구현예에 따른 연결조립체 사시도이다.Figure 2 is a perspective view of the connection assembly according to the embodiment shown in FIG.

도 3은 도 2에 도시된 구현예에 따른 연결조립체 분해사시도이다.3 is an exploded perspective view of the connection assembly according to the embodiment shown in FIG. 2.

도 4는 도 2에 도시된 구현예에 따른 연결조립체 단면도이다.4 is a cross-sectional view of the connection assembly according to the embodiment shown in FIG. 2.

도 5는 도 2에 도시된 구현예에 따른 연결조립체 일 구성의 평면도이다.5 is a plan view of one configuration of a connection assembly according to the embodiment shown in FIG. 2.

도 6은 도 2에 도시된 구현예에 따른 연결조립체 일 구성의 평면도이다.6 is a plan view of one configuration of a connection assembly according to the embodiment shown in FIG. 2.

도 7은 다른 구현예에 따른 연결조립체 사시도이다.7 is a perspective view of a connection assembly according to another embodiment.

Claims

A body defining a first channel formed to receive a rod, the body further forming a second channel extending therethrough, wherein the length axis of the first channel and the length axis of the second channel are substantially perpendicular, and the rod A body extending along the length axis of the first channel;

At least one flat portion forming an aperture formed to receive at least a portion of the implant and positioned in the second channel and substantially cylindrical and comprising a convex portion and one or more slots A collet having a threaded portion comprising a portion;

A recess located in the second channel in an unstressed position, forming a hole sized to penetrate at least a portion of the collet and having an interior comprising a thread, the interior being in contact with the convex portion of the collet An annular slot ring member comprising a portion;

At least one flat portion located in the second channel, the opening having a size that penetrates at least a portion of the collet, the at least one flat portion formed to be adjacent to at least one flat portion of the collet, at least partially in contact with the body A washer comprising a concave surface for pivoting said collet and washer relative to said body; And

Adjacent to the washer, and having a thread connected to the collet upper threaded portion, including a nut, which rotates to move the collet into the second channel,

The ring member may extend to the second channel to an extent that is acceptable to the second channel by passage of at least a portion of the convex portion of the collet relative to the ring member, and due to the additional passage of the collet convex portion relative to the ring member The implant and rod connection device of claim 1, wherein the collet is contracted about at least a portion of to substantially lock the implant to a desired position.

The implant and rod connection device of claim 1, wherein the device can be disposed at various locations along the implant.

The implant and rod connection device of claim 1, wherein the length axis of the first channel and the length axis of the second channel are non-planar.

The implant and rod connection device of claim 1, wherein the first channel is arranged to receive a rod loading in a direction parallel to the second channel length axis.

The implant and rod connection device of claim 1, wherein the first channel is disposed to receive rod loading in a direction perpendicular to the second channel length axis.

The implant and rod connection device of claim 1, wherein the first channel includes an inner threaded portion and is configured to receive a threaded retaining member to secure the rod in the first channel.

The implant and rod of claim 1, wherein the body includes a convex extension in contact with the concave bottom of the washer adjacent the second pass point, wherein the washer can be translated along the convex extension. Connecting device.

The implant and rod connection device of claim 1, wherein the first channel is U-shaped and the first channel is at least partially open along the length axis of the first channel.

A body defining a channel for receiving a rod, the body further defining a hole extending therethrough, the channel length axis and the hole length axis being substantially vertical, the channel being at least partially open along the channel length axis;

A collet locable in the hole, the collet defining a hole for receiving at least a portion of the implant;

An annular ring member forming a gap, said annular ring member being positioned in said hole in a non-stressed position and forming a hole sized to insert through at least a portion of said collet;

A pivot member positioned adjacent the hole and including a concave surface in contact with at least a portion of the body and configured to pivot the collet relative to the body; And

A fastening member positioned adjacent to the pivot member, the fastening member connecting the collet to move into the hole in contact with the collet,

Movement of the collet is configured to operate to expand the ring member and to contract the collet around at least a portion of the implant to secure the implant in a desired position.

10. The implant and rod connection device of claim 9, wherein the collet comprises a convex portion.

The implant and rod connection device of claim 10, wherein the ring member comprises a recess in contact with the convex portion of the collet.

The apparatus of claim 11, wherein the movement of the collet into the hole is such that at least a portion of the convex portion of the collet is at least partially pushed into the recess of the ring member.

10. The implant and rod connection device of claim 9, wherein the collet is substantially cylindrical and includes an upper threaded portion, an intermediate non-threaded portion, and a lower convex portion, wherein the upper portion includes at least one planar non-threaded portion.

10. The implant and rod of claim 9, wherein the pivot member comprises at least one inner flat portion in custom contact with the at least one planar non-screw portion of the collet to prevent rotation of the collet within the body. Connecting device.

10. The implant and rod connection device of claim 9, wherein the ring member comprises an internal thread formed to contact the upper thread of the collet.

10. The implant of claim 9, wherein the fastening member includes an internal threading portion formed to contact the upper threaded portion of the collet and moves the collet into the hole by tightening the fastening member along the upper threaded portion of the collet. Sieve and rod connecting device.

10. The implant and rod connection device of claim 9, wherein the channel is open in a direction parallel to the hole length axis along the channel length axis.

10. The implant and rod connection device of claim 9, wherein the channel is open in a direction perpendicular to the hole longitudinal axis along the channel longitudinal axis.

A first channel and a second channel, the first channel being formed to receive a spinal rod, the second channel extending through and surrounding a portion of the bone graft and an annular ring disposed around the collet portion And a length axis of the first channel and a length axis of the second channel are substantially vertical and non-planar, the spinal rod extending along the first channel length axis, And the first channel comprises a body that is at least partially open along the first channel longitudinal axis to accommodate the spinal rod for loading into the first channel.

The collet of claim 19, wherein the ring member can extend to a restricted position in response to movement into the ring member of the convex portion of the collet, and wherein the collet is boned in response to further movement into the ring member of the convex portion of the collet. A device, which can be retracted around a screw to lock a bone screw in a desired position.

20. The apparatus of claim 19, wherein the first channel is U-shaped and can accommodate loading of a rod into the first channel in a direction parallel to the longitudinal axis of the second channel.

20. The apparatus of claim 19, wherein the first channel is U-shaped and can accommodate loading of a rod into the first channel in a direction perpendicular to the longitudinal axis of the second channel.

20. The apparatus of claim 19, wherein the body defines a hole in communication with the first channel and is configured to receive a retaining member for securing a rod to the first channel.

20. The apparatus of claim 19, wherein the first channel comprises an internal thread and the first channel is configured to be threaded with the threaded retaining member to secure the rod into the first channel.

Arranging an annular ring member having a slot and having a slot around the collet for connection with a threaded top of the collet to be disposed about a collet that is substantially cylindrical and defines a hollow interior;

Inserting an implant into the hollow of the collet to the point where the collet surrounds the desired portion of the implant;

Inserting the collet into a first channel of the body;

Inserting the distal thread of the implant into the patient's bone structure at each desired position;

Aligning the implant in the desired angular position relative to the body;

Placing a washer about the collet close to the first channel of the body, the washer comprising a concave bottom capable of translation along a set of convex extensions of the body to enable pivoting of the collet and the body;

Tightening the nut in contact with the top of the washer to the threaded top of the collet;

And disposing a rod in a second channel of the body,

Tightening moves the collet into the first channel and secures the washer against the body, the ring member expands to a restricted position in response to movement of the convex portion of the collet into the ring member, In response to further movement of the convex portion of the collet into the ring member, the collet may be contracted around the implant to secure the collet around the implant to lock the implant at desired locations, the first channel And the length axis of the second channel is substantially perpendicular, and the second channel has a U-shaped cross-sectional dimension along the length axis of the second channel to accommodate the rod arrangement in the second channel. .

27. The method of claim 25, further comprising disposing the annular ring member in a first channel of the body, wherein the collet inserting step occurs substantially simultaneously with the placement of the annular ring member around the collet.

26. The method of claim 25, wherein a direction from the bottom of the second channel to the opening of the second channel along the length axis of the second channel is parallel to the length axis of the first channel, the direction of the second channel. Perpendicular to the longitudinal axis, the method.

26. The method of claim 25, wherein a direction from the bottom of the second channel to the opening of the second channel along the length axis of the second channel is perpendicular to the length axis of the first channel, the direction of the second channel. Perpendicular to the longitudinal axis, the method.

A body having a first channel for receiving a bone anchor and a second channel for receiving a rod, a collet surrounding a portion of the bone anchor, an annulus having a slot and having a slot sized to allow insertion of at least a portion of the collet A ring member, a washer having a concave bottom surface, and a nut, wherein the longitudinal axis of the first channel and the longitudinal axis of the second channel are substantially perpendicular, the second channel being at least partially open along the longitudinal axis of the channel and Providing a bone anchor and rod connector for receiving loading of the rod into the second channel;

Placing the connecting device at a desired position on a bone anchor;

Translating the concave surface of the washer along the body to form a desired angular relationship between the bone and the body; And

Rotating a nut along a thread of the collet to move the collet into the first channel, wherein the body, the ring member, and the collet form an interference fit upon rotation. Locking the bone anchoring mechanism in the desired angular position relative to the body.

30. The method of claim 29, further comprising inserting a rod into the second channel.

31. The method of claim 30, further comprising securing the rod to the second channel with a retaining member.

30. The method of claim 29, wherein the collet includes one or more slots to facilitate contraction of the collet about a bone anchoring mechanism.

30. The method of claim 29, wherein the collet comprises a convex portion that is formed to be in contact with the concave portion of the ring member, wherein the ring member may extend to a restricted position as it moves into the ring member of the convex portion of the collet, And the collet may contract around the implant in response to further movement of the convex portion of the collet into the ring member.