CN100584283C - Adjustable intervertebral fusion device and holding device - Google Patents

Adjustable intervertebral fusion device and holding device Download PDF

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Publication number
CN100584283C
CN100584283C CN 200810036042 CN200810036042A CN100584283C CN 100584283 C CN100584283 C CN 100584283C CN 200810036042 CN200810036042 CN 200810036042 CN 200810036042 A CN200810036042 A CN 200810036042A CN 100584283 C CN100584283 C CN 100584283C
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end
support section
octahedral
sleeve
section
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CN 200810036042
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Chinese (zh)
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CN101268963A (en
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叶晓健
桦 张
李家顺
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叶晓健;张 桦;李家顺
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

Abstract

The invention relates to an adjustable interbody fusion cage which is used in the spinal interbody fusion and a holder thereof. The interbody fusion cage comprises a back support section (1), four limbs (2) which are connected with the four corners of the back support section and a bolt (3) which is arranged in a hollow cavity surrounded by the four limbs. The four limbs are folded inward and are provided with an internal thread which is matched with an external thread of the bolt. The surface of the back support section is provided with an octahedron clutch (1.2). The holder comprises an outer sleeve (4), an inner sleeve (5) and a procession device (6), and is sleeved with the octahedron clutch (1.2) through a seam (4.1) which is at the front end of the outer sleeve. The inner sleeve (5) is put into the outer sleeve (4). A front-end thread section (5.1) can be screwed into a centre round hole (1.3) of the fusion body and is used for blocking the outer sleeve (4). The procession device (6) is arranged in the inner sleeve (5) and is used for screwing the bolt from the back end to the front end of a cavity (2.2) formed by the four limbs, causing the four limbs to be opened. As the fusion cage is smaller before being adjusted, the fusion cage is easy to be implanted, at the same time, does little damage to the rear small bone and the bone end plate.

Description

一种可调式推间融合器及其把持器技术领域 TECHNICAL FIELD An adjustable intervertebral fusion device and its gripper

本发明涉及医疗器械技术领域,是一种用于脊柱推间植骨融合术的可调式推间融合器及其把持器,本融合器的相当于前支撑段部分高度和宽度可以调节。 Technical Field The present invention relates to medical devices, is a fusion between an adjustable push push between spinal fusion surgery and for gripping, this corresponds to the fusion device and the width of the front part of the height adjustable support section.

背景技术 Background technique

近年来,推间融合器在脊柱外科手术中得到广泛的应用,主要用于推间盘切除术后的推间隙重建。 In recent years, intervertebral fusion devices are widely used in spinal surgery, primarily push plate for pushing the gap between resection reconstruction. 现有的推间融合器通常为一空心六面体,如"一 Conventional intervertebral cage is typically is a hollow hexahedral, such as "a

种腰推后路斜向植入式推体间融合器"(专利号:ZL200420081725,x),六面体分为前支撑段、后支撑段和位于前后支撑段之间的螺纟丈段三部分,空心六面体与推板接触的上下两面设有大圆孔,左右两侧设有小圆孔,融合器前后两个端面中央各有一圆孔,以利于内腔容纳的植骨物与周围组织接触融合,其形态设计与推间隙和相邻推体面相吻合,与推板接触的上下两面的表面上设有螺紋或倒刺等防滑设计,既可防止融合器的移位,又可使重建的推间隙获得即刻稳定。其后支撑段端面的圆孔设有内螺紋,该螺紋与相应的把持器匹配,以方便融合器的把持和植入。推间融合器是目前较受推崇的一种植入物。但现有的六面体推间融合器大多为固定形状和大小的空心六面体,其前支撑段的高度大于后支撑段,植入时不仅操作不方便,而且对后方小关节和骨性终板破坏 Species oblique posterior lumbar fusion between push implantable device "(patent number: ZL200420081725, x), divided into three parts hexahedral spiro Si feet support sections between the front section, rear section and a support section supporting the front and rear, vertical hollow hexahedral push plates in contact with both surfaces of the large hole, small hole with the left and right sides, two end surfaces each having a central longitudinal circular cage, the receiving lumen to facilitate bone fusion was in contact with the surrounding tissue, its shape and design adjacent push the push decent gap coincides with the upper surface of the upper and lower sides of the push plate contacts the like provided with threads or barbs slip design, can prevent displacement of the cage, and the gap can push reconstruction immediate stability is obtained. Thereafter the End support circular hole provided with an internal screw thread to match with the corresponding grippers, to facilitate gripping and implanting the fusion device. intervertebral fusion is more highly regarded an implant but between conventional hexahedral push the cage mostly fixed shape and size of the hollow hexahedron, the height of the front support section is greater than the support section, not only inconvenient to operate upon implantation, but also for the rear facet joint and bone endplate destruction 较大。研究表明后方小关节对脊柱节段稳定性具有重要意义,而骨性终板的破坏程度与融合器的塌陷、位移均密切相关。另外,就治疗单纯性推间盘突出症而言,行推间融合术可维持推间高度、减緩相邻节段的推间盘退变,并可以避免推间盘再次突出,降低多次再手术率,但由于目前现有的矩形融合器植入时对骨性结构破坏大,即时稳定性弱,往往需要另辅以后方内固定系统加以稳定,不仅增加医疗费用,而且增加创伤和手术风险。 A large study shows the rear of the small joints of great significance for the stability of the spinal segment, while the extent of damage and the fusion of bony endplates collapse, displacement are closely related. In addition, it is in terms of the treatment of simple disc herniation , pushing fusion between the lines can be maintained between the height of the push, push plate between slow degeneration of adjacent segments, and avoid pushing the protruding discs again, many times lower reoperation rate, but due to the current existing rectangular cage when implanted on a large bone structure damage, weak real-time stability, often requires another to be supplemented by a stable internal fixation system behind, not only increase health care costs, but also increase the risk of trauma and surgery.

发明内容 SUMMARY

本发明的目的是提供一种植入时操作方便、对后方小关节和骨性终板破坏小、前支撑段高度和宽度可以调节的推间融合器及其把持器。 Object of the present invention is to provide an implant to facilitate operation of the rear facet joint and bone destruction small endplate, the front support section height and width can be adjusted and intervertebral fusion device gripper.

本发明的推间融合器形似空心六面体,由后支撑)炎、连于后支撑段四角的四条扁方形肢体和置于由四条扁方形肢体围成的空心内腔的螺栓组成。 Intervertebral fusion device of the present invention is a hollow hexahedral shape, by a rear support) inflammation, the rear support section connected to the four corners of the limb and placed flat square surrounded by four flat rectangular limb into the hollow interior of the bolt components. 四条扁方形肢体与推板接触的上下两面全程设有倒齿状或三角形凸起,以防止融 Four flat rectangular upper and lower surfaces throughout the body in contact with the push plate is provided with an inverted triangular projections or tooth, to prevent melting

合器植入后退出;肢体富有弹性,向内合拢,使后支撑段和四条肢体的组合形似抓手,相邻肢体间呈U形镂空,四条肢体构成的内腔呈圆锥状,设有内螺紋,该内螺紋与置于该腔内的螺栓的外螺紋匹配,以便将螺栓从融合器四条肢体构成的内腔后端旋向前端时,逐渐撑开四条扁方形肢体,直至达到手术预期要求。 After co-implantation exit; elastic body, folded inwardly, so that a combination of rear support section shape and four limb grip, between the U-shaped hollow body adjacent the body lumen four conical configuration, with the thread, the internal thread of the bolt cavity disposed external thread matching the internal cavity to the rear end of the bolt is composed of four limb from the fusion front end of rotation, gradually softened four flat rectangular body, until the operation expectations . 肢体前端边角圆钝,表面光滑,其为融合器植入时的前端,以防融合器植入时损伤周围神经和組织。 Limb distal corners rounded, smooth surface, a front end thereof when the implanted fusion device, to prevent damage to peripheral nerves and tissue fusion implant. 融合器后支撑段端面呈四方形,中央有一个八面体凸起,犹如后支撑段四方形端面的四个角各被切除一个三角体而形成,后支撑段端面连同八面体凸起的中央为一圓孔,设有内螺紋。 Fusion supporting square section end faces, there is a central octahedral projections, like the square end surface of the support section at each corner is cut away to form a triangular body, together with the rear end surface of the support section of the central projection is octahedral a circular hole, an internal thread. 螺栓为一空心圆柱体,设有外螺紋,前端封闭,前端略细于后端,内腔横截面呈多边形,以便插入与其形状大小匹配的旋进器将其旋进或旋出融合器空心六面体的内腔。 The bolt is a hollow cylinder, provided with an external thread, a closed distal end, the distal end slightly smaller at the rear end, a lumen polygonal cross-section, its shape and size for insertion into the matching screw feeder which is screwed in or out of the hollow fusion device hexahedral lumen.

推间融合器的把持器由外套筒、内套筒和旋进器组成。 Push fusion between the gripper by the outer sleeve, the inner sleeve and screwed into the components. 外套筒为一圆柱状空心管,内径同融合器后支撑段端面上八面体凸起的中央圆孔,其前端为衔接口,尾端为把持柄。 Outer sleeve is a hollow cylindrical tube with an inner diameter of the end surface of the cage support section octahedral raised central circular hole, the front end of the mouth adapter, gripping the tail end of the shank. 衔接口用于与融合器后支撑段端面的八面体凸起套接, 周边膨出呈四方形,四方形的边长分别与融合器后支撑段端面的四边持平, 其四个角伸出四个三角体爪,四个三角体爪的形状大小正好相当于后支撑段四方形端面上为形成八面体凸起而被切除的四个三角体部分,使游f接口内腔与八面体凸起匹配,以至于将衔接口套接于八面体凸起时,正好互补,与后支撑段的四方形端面合为一体,八面体凸起的其中四个面分别相间嵌合于四 Octahedral adapter support section for the rear opening end surface of the socket fusion bump, bulge surrounding square shape, each side length of flat square end face and four sides of the support section after fusion, which protrude four corners triangular nail, nail size and shape four triangular exactly four triangular portion is formed and is cut octahedral projections corresponding to the rear end face of the square section of the support, so that the lumen interfaces with the travel f octahedral projections matching, so that the coupling mouth sleeved octahedral projections is complementary with the rear end face of the square section of the support into one, wherein four octahedral convex surfaces are fitted in the four phases

个三角体爪之间,将融合器的后支撑段钳住以防发生旋转;内套筒套于外套筒内,为一圆柱状空心管,外径与外套筒的内径匹配,前端为螺紋段,其外螺紋与后支撑段端面连同八面体凸起的中央圆孔的内螺紋匹配,尾端为旋柄, 用于将前端的螺紋段旋入中央圆孔,并把外套筒卡住,防止融合器从外套筒衔接口滑脱;旋进器为一圆柱形实心棒,置于内套筒内,外径与内套筒的内径匹配,前端呈多边形,与螺栓的多边形内腔匹配,尾端为手柄,旋进器用于将螺栓从融合器四条扁方形肢体构成的内腔后端旋向前端,使四条扁方形肢体逐渐被撑开,调节前支撑段的高度和宽度,直至达到手术预期效果。 Between the triangular pawl body, the rear clamping cage against rotation supporting section occurs; the inner sleeve in the outer sleeve jacket, is a cylindrical hollow tube, an inner diameter matching the outer diameter of the outer sleeve, the front end of threaded section, the threaded outer end surface of the rear support section, together with an internal thread matching octahedral raised central circular hole, the end of rotary handle, for the distal threaded section is screwed into a central circular hole, and the outer sleeve card live, the fusion preventing slipping off from the outer sleeve port adapter; feeder is screwed a cylindrical solid rod, disposed within the inner sleeve, an inner diameter matching the outer diameter of the inner sleeve, the front end of polygonal, polygonal bolt lumen match, the end of the handle, is screwed into the rear end of the bolt for configuration of the lumen of the cage from the four flat rectangular limb distal to the rotation, so that four flat rectangular limb gradually softened, adjust the height and width of the front support section until surgery to achieve the desired results.

本发明的推间融合器,其一个特征在于相当于将现有的六面体推间融合器的上下左右四个面的中央作纵向U字形开放式镂空,形成四条扁方形肢体, 肢体富有弹性,呈向内合拢状,设有内螺紋,通过置于其腔内的螺栓将四条肢体撑开,使前支撑段达到预定的高度和宽度。 Intervertebral fusion device of the present invention is characterized in that a vertically and horizontally corresponding to the center of a conventional intervertebral cage hexahedral four faces longitudinally open hollow U-shape, a square formed four flat limb, flexible body, was inwardly folded shape, an internal thread, through which a bolt is placed the four limbs distraction cavity, the front section of the support reaches the predetermined height and width. 其第二个特征在于其后支撑段端面上有一个八面体凸起,用其衔接把持器有利于固定和操作;第三个特征在于把持器由外套筒、内套筒和旋进器组成,其组合有利于融合器植入时的固定和操作。 Characterized in that its second end face followed by a support section octahedral projection, with which the gripping adapter is fixed and facilitate operation; characterized in that the third gripper by the outer sleeve and the inner sleeve composed precession which when combined with the fixed implantation facilitates integration and operation.

使用时,首先将螺栓通过融合器后支撑段的中央圆孔置于由四条扁方形肢体围成的空心内腔,其外螺紋与内腔的内螺紋相吻合;第二将把持器外套筒 In use, the bolt placed in a square surrounded by four flat limb into the hollow interior through the central circular section of the rear support cage, an outer thread and the internal thread coincide lumen; and a second outer gripping sleeve

的衔接口与后支撑段上的八面体凸起对接;第三将内套筒插入外套筒,使前 Before the third inner sleeve into the outer sleeve, so that; octahedral adapter port on the back support section abutting projections

端的螺紋段旋入中央圆孔,其尾端将外套筒卡住,使内、外套筒和融合器牢 Threaded section screwed into a central circular hole end, the trailing end of the outer sleeve which jammed, the inner, outer sleeve and the fusion device securely

固地连为一体;然后按常规用击打器敲击内套筒尾端的旋柄将融合器插入到病变推间隙的相应位置,再从内套筒插入旋进器,将前端的多边形部分置入螺栓的多边形内腔,通过手柄旋转将螺栓从融合器四条肢体构成的内腔后端旋向前端,使四条扁方形肢体逐渐被撑开,调节前支撑段到手术预期的高度和宽度,再依次逐一退出旋进器、内套筒和外套筒,可按常规行后续手术操作。 The solid as a single entity; then the conventional rotary handle struck by beater trailing end of the inner sleeve of the cage into the corresponding position of the lesion to push the gap, and then screwed into the insert from the inner sleeve, the front end facing the polygonal portion polygonal bolt into the lumen, the lumen through the handle is rotated from the rear end of the bolt constituting the rotary cage four limb distal to the four flat rectangular limb gradually softened, the front support section to adjust the height and width of the intended operation, and then exit sequentially one by one screw feeder, the inner sleeve and an outer sleeve, according to routine subsequent surgical procedure.

本发明融合器由于植入时四条肢体处于合拢状态,前支撑段较小,因此植入操作方便,对后方小关节和骨性终板破坏小;融合器的上下左右四个面中央的U字形开放式镂空可提供植骨物与周围组织的接触面,调节后空心内腔植骨量和终板接触面增大,有利于融合;前支撑段为可调式,有利于调节高度使更符合人体解剖结构;融合器上下面的倒齿在调节过程中主动嵌入终板, 提供更为强大的即时防滑移作用;把持器能有效地把持融合器,使植入时操作更方便、准确。 Fusion implant of the present invention, since four limbs when in a closed state, the front support section is small, easy to operate so implanted, to the rear facet joint bone endplate and small destruction; four vertical and horizontal surface at the center of the U-shaped cage open hollow may provide a contact surface with the surrounding bone tissue material, after adjusting the amount of the hollow interior bone contacting surface and the endplate increases, facilitate fusion; front support section is adjustable, so that facilitate more ergonomic height adjustment anatomical structure; below the cage pawls fitted in the adjustment process active endplates to provide immediate shifting action more powerful anti-skid; gripper can effectively grip the fusion device, so that when the implant operation is more convenient and accurate.

附图说明 BRIEF DESCRIPTION

图l为本发明的融合器的后侧视立体结构示意图图2为本发明的融合器的左侧一见立体结构示意图图3为本发明的融合器的螺栓立体结构示意图图4为本发明的把持器的外套筒立体结构示意图图5为本发明的把持器的内套筒立体结构示意图图6为本发明的把持器的旋进器立体结构示意图图7为本发明组合后融合器调节前的立体结构示意图图8为本发明组合后融合器调节后的立体结构示意图。 Figure l rear side perspective view of the present invention the structure of the cage 2 a schematic view of the left side of the fusion device of the present invention, see FIG bolt a perspective structural schematic view of 3-dimensional structure of the fusion device of the present invention FIG. 4 is a schematic view of the invention grasping the inner sleeve's outer gripper sleeve 5 a perspective schematic structural diagram of the present invention. FIG. 6 is a perspective schematic structural diagram of the invention combination of front and rear feeder gripper spin perspective schematic structural diagram of the present invention, the cage 7 is adjusted 8 is a perspective schematic structural diagram of a perspective schematic view of the structure after the adjustment of the present invention is a combination of fusion.

具体实施方式 Detailed ways

现结合附图和实施例对本发明作详细描述。 And now in conjunction with the accompanying drawings of the embodiments of the present invention is described in detail.

本发明的推间融合器形似空心六面体,由后支撑段l、连于后支撑段四角的四条扁方形肢体2和置于由四条扁方形肢体围成的圆柱形空心内腔的螺栓3 组成,四条扁方形肢体2与推板接触的上下两面全程设有倒齿状或三角形凸起2.1,肢体富有弹性,向内合拢,使后支撑段1和四条肢体2的组合形似抓手, 相邻肢体间呈U形镂空,其四条肢体构成的内腔2.2呈圆锥状,前端小后端大, 设有内螺紋,该内螺紋与置于该腔内的螺栓3的外螺紋匹配;肢体前端2.3边角圆钝,表面光滑,其为融合器植入时的前端;融合器后支撑段端面ll呈四方形,中间有一个八面体凸起1.2,犹如后支撑段四方形端面的四个角各被切除一个三角体而形成,后支撑段端面1.1连同八面体凸起1.2的中央为一圆孔1.3, 设有内螺紋。 Pushing the fusion device of the present invention between hollow hexahedral shape, L by the rear support section, the support section connected to the four corners of the body 2 and placed flat square surrounded by four flat rectangular limb into the hollow interior of the cylindrical bolts 3 composition, four flat rectangular body 2 in contact with the entire upper and lower surfaces of the push plate is provided with the inverted tooth or triangular projections 2.1, flexible body, folded inwardly, the support segments are combined shape of the gripper 1 and 2 of the four limbs, the adjacent limb between the U-shaped hollow, cavity 2.2 which four limbs conical configuration, the front end of the small rear large, an internal thread, the internal thread of the bolt is placed in the cavity matching the external thread 3; 2.3 limb distal edge round and blunt, smooth surface, which is at the front end of the cage implant; fusion rear end surface supporting section ll was a square, a middle boss octahedral 1.2, like the square end surface of the support section at each corner is removal of a triangular body is formed, together with the rear support section 1.1 octahedral end surface projection is a central circular hole of 1.2 1.3, an internal thread. 螺栓3为一空心圓柱体,设有外螺紋,前端3.1封闭,前端略细于后端,内腔3,2横截面呈多边形,可插入与其形状大小匹配的旋进器。 3 the bolt is a hollow cylinder, provided with external threads, 3.1 a closed distal end, the distal end slightly smaller at the rear end, a lumen 3,2 polygonal cross section, can be inserted with its size and shape matching screw feeder.

推间融合器的把持器由外套筒4、内套筒5和旋进器6组成。 Push fusion between the gripper by the outer sleeve 4, inner sleeve 5 and rotary feeder 6 composition. 外套筒4为一圆柱状空心管,内径同融合器后支撑段端面上八面体凸起的中央圆孔1.3,其前端为衔接口4.1,尾端为把持柄4.2,衔接口4.1用于与融合器后支撑段端面的八面体凸起1,2套接,周边膨出呈四方形,四方形的边长分别与融合器后支撑段端面的四边持平,其四个角伸出四个三角体爪4.3,四个三角体爪的形状大小正好相当于后支撑段四方形端面上为形成八面体凸起而被切除的四个三角体部分,使衔接口内腔与八面体凸起1.2匹配,以至于将衔接口4.1套接于八面体凸起1,2时,正好互补,与后支撑段的四方形端面合为一体,八面体凸起L2的其中四个面分别相间嵌合于四个三角体爪4.3之间;内套筒5套于外套筒4内, 为一圆柱状空心管,外径与外套筒的内径匹配,前端为螺紋段5.1,其外螺紋与中央圓孔1.3的内螺紋匹配,尾端为旋柄5.2,用于将前端的螺紋段5.1旋入中 An outer cylindrical sleeve 4 is a hollow tube, with the inner diameter of the end surface of the support cage segment octahedral raised central circular hole 1.3, which is the distal port adapter 4.1, 4.2 trailing end of the grip handle, and a coupling mouth 4.1 supporting the End fusion octahedral projections 1,2 sheathing, surrounding bulging four square side length of square section end faces are flat with four sides supporting the cage, which projects four triangular corners 4.3 nail, nail size and shape four triangular exactly corresponds to the body portion to form four triangular projections is octahedron square cut end surfaces of the support section, so that engagement projection port lumen octahedral 1.2 match, the port adapter so that the octahedral projections sleeved 4.1 to 1 or 2, is complementary with the rear end face of the square section of the support into one, wherein four projections octahedral faces L2 respectively fitted in four phases trigone between 4.3 pawl; inner sleeve 5 within the sleeve 4 to the outer sleeve, is a cylindrical hollow tube, an inner diameter matching the outer diameter of the outer sleeve, the front end of a threaded section 5.1, with a central circular outer thread 1.3 matching internal threads, the end of rotary handle 5.2, 5.1 for the threaded section screwed into the front end 央圆孔1.3,并把外套筒4卡在融合器上;旋进器6为一圆柱形实心棒,置于内套筒5内,外径与内套筒的内径匹配,前端6.1呈多边形,与螺栓的多边形内腔3.2匹配,尾端为手柄6.2,旋进器用于将螺栓从融合器四条肢体构成的内腔后端旋向前端,使四条扁方形肢体逐渐被撑开,调节前支撑段的高度和宽度, 直至达到手术预期效果。 1.3 the central circular hole, and the outer sleeve 4 in the card cage; 6 is screwed into a solid cylindrical rod, positioned within the inner sleeve 5, the inner diameter matching the outer diameter of the inner sleeve, the front end of a polygonal 6.1 , the bolt matching polygonal inner cavity 3.2, 6.2 trailing end of the handle, is screwed into the rear end of the bolt constituting the lumen for fusion four limb from the distal end of rotation, so that four flat rectangular body is stretched gradually adjusting the front support section height and width, until the desired effect surgery.

实施例l: Example l:

本发明的融合器全长24mm;后支撑段l的高度和宽度均为8mm,总长6mm,其中中央八面体凸起1.2长2.5111111,端面为正八边形,相对两边距离均8.0mm,中央圆孔L3有内螺紋,设为M7xlmm;四条肢体2长18mm,前端2.3 作圆角处理,相邻肢体间U形镂空中前间距lmm,后间距3mm,相邻肢体间后支撑段部分半圆形镂空半径1.5mm,各肢体上下表面分别设有4个倒齿2.1,齿宽和齿高均lmm,间距3.2皿,四条肢体构成的圆锥状空心内腔2.2内螺紋螺距为0.6mm,后端面直径6mm;近圓柱状螺栓3长3.5mm,后端外径6mm,前后有10。 Fusion of the present invention the entire length 24mm; height and width of the rear support section l are 8mm, total length 6mm, wherein the length of the central octahedral 1.2 2.5111111 projection, the end face is a regular octagon, each of 8.0 mm from opposite sides, a central circular hole L3 is internally threaded to M7xlmm; 2 four limb length 18mm, 2.3 for the front end rounded corners, the spacing between adjacent U-shaped hollow body front lmm, the pitch of 3mm, the semicircular portion of the support section between the hollow body adjacent radius of 1.5mm, the upper and lower surfaces of each limb is provided with four pawls are respectively 2.1, tooth width and tooth height are lmm, pitch 3.2 dish, consisting of four conical hollow body lumen 2.2 thread pitch is 0.6mm, 6mm diameter rear end ; subterete long bolt 3 3.5mm, the rear end of the outer diameter 6mm, 10 before and after. 倾角,前端3.1封闭,六面体内腔截面设为SW3,深度2.8mm。 Angle, the front end closure 3.1, hexahedron cross section of the body cavity SW3 are set, the depth of 2.8mm.

本发明的把持器外套筒4总长l卯mm,圆柱体外径9mm,内径7mm,衔接口4.1总长5mm,其中正方形膨出部分边长8mm,长3mm,三角体爪4.3长2mm, 等腰直角三角截面直角边长均为2mm,把持柄4.2呈圆棍状,长80mm,直径8mm,;内套筒5总长200mm,圆柱体外径7mm,内径5mm,前端螺紋段5.1长4mm,设为M7xlmm,旋柄5.2外径20mm,长10mm;旋进器6总长230mm, 圓柱体直径4.8mm,前端六面体突起6.1长3.5mm,截面正六边形设为SW3,尾端为手柄6.2,呈圆木5状,长100mm,直径10mm。 The outer grip sleeve 4 of the present invention, the total length l d mm, an outer diameter of a cylinder 9mm, an inner diameter of 7mm, a total length of 4.1 adapter port 5mm, wherein the square side length portion bulging 8mm, length 3mm, length 4.3 trigone pawl 2mm, isosceles right are cross-sectional right-angled triangle side length 2mm, 4.2 cylindrical stick-like grip handle, length 80mm, diameter 8mm ,; total length of the inner sleeve 5 200mm, an outer diameter of the cylinder 7mm, an inner diameter of 5mm, length of distal thread segments 5.1 4mm, set M7xlmm, 5.2 the outer diameter rotary handle 20mm, length 10mm; precession 6 230mm total length, 4.8mm diameter cylindrical body, the front end of the projection hexahedral length 6.1 3.5mm, SW3 are set to a regular hexagonal cross section, the trailing end of the handle 6.2, a circular-shaped timber 5 , length 100mm, diameter 10mm. 实施例2: Example 2:

本发明的融合器高度和宽度为9mm,其余同实施例l。 Height and width of the fusion device of the present invention are 9mm, in Example l with the remaining embodiments. 实施例3: Example 3:

本发明的融合器高度和宽度为10mm,其余同实施例l。 Height and width of the fusion device of the present invention is 10mm, and the rest with Example l embodiment. 本发明可根据推间隙高度制成不同»型号。 The present invention can be made of different height »push model in accordance with the gap.

Claims (2)

1、一种可调式椎间融合器,形似空心六面体,其特征在于由后支撑段(1)、连于后支撑段四角的四条扁方形肢体(2)和置于由四条扁方形肢体围成的空心内腔的螺栓(3)组成,四条扁方形肢体(2)与椎板接触的上下两面全程设有倒齿状或三角形凸起(2.1),肢体富有弹性,向内合拢,使后支撑段(1)和四条肢体(2)的组合形似抓手,其四条肢体构成的内腔(2.2)呈圆锥状,前端小后端大,设有内螺纹,该内螺纹与置于该腔内的螺栓(3)的外螺纹匹配,肢体前端(2.3)边角圆钝,四条肢体相邻间距等同,相邻肢体间呈U形镂空;融合器后支撑段端面(1.1)呈四方形,中央有一个八面体凸起(1.2),犹如后支撑段四方形端面的四个角各被切除一个三角体而形成,后支撑段端面(1.1)连同八面体凸起(1.2)的中央为中央圆孔(1.3),中央圆孔(1.3)设有内螺纹;螺栓(3)为一空心圆柱体,前端略细 An adjustable interbody fusion, the hollow hexahedral shape, characterized by a rear support section (1), attached to the rear support section of the four corners of a square flat limb (2) surrounded by four and placed into a flat rectangular body the hollow interior of the bolt (3), with four flat rectangular body (2) in contact with the entire upper and lower surfaces of the lamina is provided with an inverted triangular tooth or projection (2.1), elastic body, folded inwardly, so that the rear support paragraph (1) and the four limb (2) a combination of the shape of the starting point, the lumen (2.2) which is composed of four conical body, the rear end of the front end small large, an internal thread, the internal thread disposed in the cavity bolts (3) matching the external thread, distal limb (2.3) rounded corners, four identical distance between adjacent limb between adjacent U-shaped hollow body; fusion end surface supporting section (1.1) was a square, the center octahedral a projection (1.2), each member is cut away to form a triangular support section like rear end face of the four corners of the square, rear end surface of the support section (1.1) together with octahedral projections (1.2) of the center of the central circle holes (1.3), a central circular hole (1.3) is provided with an internal thread; bolt (3) is a hollow cylinder, the front end slightly smaller 后端,设有外螺纹,前端(3.1)封闭,内腔(3.2)横截面呈多边形,以插入与其形状大小匹配的旋进器。 The rear end, is provided with an external thread, a front end (3.1) is closed, the cavity (3.2) a polygonal cross-section, its shape and size to be inserted into the matching screw feeder.
2. 权利要求1所述推间融合器的把持器,其特征在于由外套筒(4)、内套筒(5 )和旋进器(6)组成;外套筒(4)为一圓柱状空心管,内径同融合器八面体凸起的中央圆孑L(1.3),其前端为衔接口(4.1),尾端为把持柄(4.2),衔接口(4.1)用于与后支撑段端面的八面体凸起(1.2)套接,周边膨出呈四方形,四方形的边长分别与融合器后支撑段端面的四边持平,其四个角伸出四个三角体爪(4.3),使衔接口的内腔与八面体凸起(1.2)匹配,将衔接口(4.1)套接于八面体凸起(L2)时,八面体凸起(L2)的其中四个面分别相间嵌合于四个三角体爪(4.3)之间;内套筒(5)置于外套筒(4)内,为一圆柱状空心管,外径与外套筒的内径匹配,前端为螺紋段(5.1),其外螺紋与中央圆孔(1.3)的内螺紋匹配,尾端为旋柄(5.2),用于将前端的螺紋段(5.1)旋入中央圆孔(1.3),并把外套筒(4)牢固地卡在融合器上;旋进 2. The push grip a fusion device as claimed in claim, wherein an outer sleeve (4), the inner sleeve (5) and a screw feeder (6) the composition; an outer sleeve (4) is a cylindrical shaped hollow tube, with the inner diameter of the cage octahedral raised central circle larvae L (1.3), which is a front end coupling mouth (4.1), the trailing end of the gripping shank (4.2), the adapter opening (4.1) for the rear support section end surface octahedral projections (1.2) socket, a square shape surrounding bulging, the side length of the square segments are fused with four sides supporting flat end surface which projects four corners trigone pawl (4.3) , so that when the port adapter lumen octahedral projections (1.2) matched, the coupling mouth (4.1) is sleeved in octahedral projections (L2), octahedral projections (L2), wherein the four faces are respectively fitted white trigone bonded to four claws (4.3) between; inner sleeve (5) disposed within an outer sleeve (4), is a cylindrical hollow tube, an inner diameter matching the outer diameter of the outer sleeve, a threaded distal section (5.1), an outer thread with a central circular hole (1.3) of the matching internal threads, the end of rotating handle (5.2) for the front end of the thread segments (5.1) screwed into a central circular hole (1.3), and the outer a sleeve (4) is firmly seated in the cage; precession 器(6)为一圓柱形实心棒,置于内套筒(5)内,外径与内套筒的内径匹配,前端(6.1)呈多边形,与螺栓的多边形内腔(3,2)匹配,尾端为手柄(6.2),旋进器(6)用于将螺栓(3 )从融合器四条扁方形肢体构成的内腔(2.2)的后端旋向前端,使四条扁方形肢体逐渐被撑开,调节前支撑段的高度和宽度,直至达到手术预期要求。 (6) is a solid cylindrical rod, positioned within the inner sleeve (5), an inner diameter matching the outer diameter of the inner sleeve, the front end (6.1) as a polygon, (3,2) matched to the polygonal bolt lumen , the end of the handle (6.2), screw feeder (6) for bolts (3) the rear end of the inner cavity (2.2) is composed of four flat rectangular cage from the limb distal to the rotation, so that four rectangular flat body is gradually distraction, adjust the height and width of the front support section, until the operation expectations.
CN 200810036042 2008-04-15 2008-04-15 Adjustable intervertebral fusion device and holding device CN100584283C (en)

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