TWI403307B - Spiral rod connection device - Google Patents
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- TWI403307B TWI403307B TW99132870A TW99132870A TWI403307B TW I403307 B TWI403307 B TW I403307B TW 99132870 A TW99132870 A TW 99132870A TW 99132870 A TW99132870 A TW 99132870A TW I403307 B TWI403307 B TW I403307B
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Description
本發明係有關一種脊椎桿件連結裝置,尤指一種可調整角度之脊椎桿件連結裝置。The invention relates to a spinal rod connecting device, in particular to an adjustable angle spinal rod connecting device.
脊椎固定手術中,常用固定桿作為輔助固定裝置,但因脊椎並不是成一直線,各脊椎骨節通常也不平行,例如腰椎為脊柱腹凸(lordosis)。因此若將原本成一直線的固定桿,直接和植入待固定脊椎骨節的複數支骨釘結合固定成一體,將迫使不在一直線上的待固定脊椎骨節變成在一直線上,並使原本不該平行的各個待固定脊椎骨節變成平行。In the spinal fixation surgery, the fixed rod is often used as an auxiliary fixation device, but because the spine is not in a straight line, the vertebrae are usually not parallel, for example, the lumbar vertebra is lordosis. Therefore, if the fixed rod that is originally in line is directly integrated with the multiple bone nails implanted in the vertebral joint to be fixed, it will force the spinal joints to be fixed not in the straight line to become in a straight line, and the original should not be parallel. The individual vertebrae to be fixed become parallel.
為了避免上述缺失,因此醫療界提出各種改良結構,諸如:In order to avoid these shortcomings, the medical community has proposed various improved structures, such as:
1. 以有角度的螺釘(angled screw)解決問題,諸如US-5,176,679、US-5,196,014、US-5,257,994、US-5,466,238等;例如US-5,176,679利用有角度的骨釘(locking pins designed to have specific angles,),來解決上述脊椎骨節通常並不平行問題。但該等方法只適用於一支固定桿和兩支骨釘之間的脊椎骨節固定(因為兩點成一直線),但不適用於一支固定桿和三支(含)骨釘以上的脊椎骨節固定,因為三點通常不在一直線上,此外,該等方法在手術後,患部不具有動態功能,如後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion)等及緩衝(cushion)功能。1. Solve problems with angled screws such as US-5,176,679, US-5,196,014, US-5,257,994, US-5,466,238, etc.; for example US-5,176,679 utilizes angled pins designed to have specific angles ,), to solve the above-mentioned spine joints are usually not parallel problems. However, these methods are only suitable for the fixation of the vertebrae between a fixed rod and two bone nails (because the two points are in line), but not for a fixed rod and three or more bones above the bone. Fixed because the three points are usually not in line. In addition, after the operation, the affected part does not have dynamic functions such as extension, flexion, lateral bending, and axial torsion. Wait for the buffer function.
2. 以有角度的固定塊(angled connector)解決問題,諸如US-5,257,994、US-5,330,474等;例如US-5,257,994利用有角度的固定塊(locking block designed to have specific angles),來解決上述脊椎骨節通常並不平行問題。但該等方法只適用於一支固定桿和兩支骨釘之間的脊椎骨節固定(因為兩點成一直線),但不適用於一支固定桿和三支(含)骨釘以上的脊椎骨節固定,因為三點通常不在一直線上,此外,該等方法在手術後,患部不具有動態功能,如後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion)等及緩衝(cushion)功能。2. Solve the problem with an angled connector, such as US-5,257,994, US-5,330,474, etc.; for example, US-5,257,994 utilizes locking blocks designed to have specific angles to solve the above-mentioned spine joints. Usually not parallel problems. However, these methods are only suitable for the fixation of the vertebrae between a fixed rod and two bone nails (because the two points are in line), but not for a fixed rod and three or more bones above the bone. Fixed because the three points are usually not in line. In addition, after the operation, the affected part does not have dynamic functions such as extension, flexion, lateral bending, and axial torsion. Wait for the buffer function.
3. 以萬向結合裝置(universal connecting device)解決問題,諸如US-5,474,551、US-5,507,746、US-5,575,791等;例如US-5,474,551係利用萬向墊片固定裝置(a universal pad fixation device),來解決上述脊椎骨節通常並不平行問題。但該等方法只適用於一支固定桿和兩支骨釘之間的脊椎骨節固定(因為兩點成一直線),但不適用於一支固定桿和三支(含)骨釘以上的脊椎骨節固定,因為三點通常不在一直線上,此外,該等方法在手術後,患部不具有動態功能,如後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion)等及緩衝(cushion)功能。3. Solve problems with a universal connecting device, such as US-5,474,551, US-5,507,746, US-5,575,791, etc.; for example, US-5,474,551 utilizes a universal pad fixation device. Solving the above-mentioned vertebrae is usually not a parallel problem. However, these methods are only suitable for the fixation of the vertebrae between a fixed rod and two bone nails (because the two points are in line), but not for a fixed rod and three or more bones above the bone. Fixed because the three points are usually not in line. In addition, after the operation, the affected part does not have dynamic functions such as extension, flexion, lateral bending, and axial torsion. Wait for the buffer function.
4. 以多軸螺釘(polyaxial screw)解決問題,諸如美國核准專利US-5,520,690、US-5,531,746、......US-7,186,2552、US-7,207,992等數十筆,及美國相關的公開專利申請案US-20010012937、US-20020111626、......、US-20070161995、US-20070162006等數十筆。這是目前的主流技術。該等技術基本上都是利用多軸螺釘(細節參見該案說明書),來解決上述脊椎骨節通常並不平行問題。但上述該等方法只適用於一支固定桿和兩支骨釘之間的脊椎骨節固定(因為兩點成一直線),但不適用於一支固定桿和三支(含)骨釘以上的脊椎骨節固定,因為三點通常不在一直線上,此外,該等方法在手術後,患部不具有動態功能,如後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion)等及緩衝(cushion)功能。4. Solve problems with polyaxial screws, such as US approved patents US-5,520,690, US-5,531,746, ...US-7,186,2552, US-7,207,992, etc., and related publications in the United States Dozens of patent applications such as US-20010012937, US-20020111626, ..., US-20070161995, US-20070162006, etc. This is the current mainstream technology. These techniques basically utilize multi-axis screws (see the description of the details) to solve the problem that the above-mentioned vertebrae are usually not parallel. However, the above methods are only applicable to the fixation of the vertebrae between a fixed rod and two bone nails (because the two points are in line), but not for a fixed rod and three or more bone bones. The section is fixed because the three points are usually not in line. In addition, after the procedure, the affected part does not have dynamic functions such as extension, flexion, lateral bending, and axial torsion. ) and buffer (cushion) function.
5.以人工關節固定裝置解決問題,例如TW-I275380(細節參見該案說明書),來解決上述脊椎骨節通常並不平行問題。5. Solve the problem with an artificial joint fixture, such as TW-I275380 (see the description of the case for details) to solve the problem that the above-mentioned vertebrae are usually not parallel.
該等方法在手術後,患部雖具有動態功能,如後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion),但該設計穩定性差且具有鬆脫的危險性同時也需佔用較大的空間,此外該設計亦無緩衝(cushion)功能。These methods have dynamic functions such as extension, flexion, lateral bending, and axial torsion after surgery, but the design is poor in stability and has the risk of loosening. Sex also takes up a lot of space, and the design also has no cushioning function.
本發明人等之台灣專利TW-200936097利用球弧裝置與彈性設計使脊椎固定桿同時具備上述的動態功能,如後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion)及緩衝(cushion)功能,但該專利係利用一外加之連結裝置,讓第一杯體與第二杯體加以連結,如此該脊椎固定裝置將需要加大的空間,而使手術較為不便與耗時。The inventor's Taiwan patent TW-200936097 utilizes a ball arc device and an elastic design to make the spinal fixation rod simultaneously have the above-mentioned dynamic functions such as extension, flexion, lateral bending, and torsion ( Axial torsion) and cushioning function, but the patent uses an additional coupling device to connect the first cup to the second cup, so that the spinal fixation device will require more space, so that the surgery is more Inconvenience and time consuming.
本發明除利用環狀彈性襯墊,配合第一連結桿及第二連結桿結合端之球弧機構,使兩相鄰連結桿可藉由環狀彈性襯墊,而達到調整兩相鄰連結桿之間的角度之目的並使該發明具備後彎(extension)、前屈(flexion)、側彎(lateral bending)、扭轉(axial torsion)之動態功能,且本發明亦利用環狀彈性襯墊的設計使該脊椎桿件連結裝置同時具備緩衝(cushion)功能,此外本發明亦採用兩連結杯體間自體連結的設計,減少該脊椎桿件連結裝置所需的元組件,並同時降低其所需要的空間,以解決本發明人等之台灣專利TW-200936097的缺點。In addition to the annular elastic pad, the ball arch mechanism of the first connecting rod and the connecting end of the second connecting rod is used to adjust the two adjacent connecting rods by the annular elastic pad. The purpose of the angle is to provide the invention with the dynamic functions of extension, flexion, lateral bending, and axial torsion, and the present invention also utilizes an annular elastic gasket. The design allows the spinal rod connecting device to have a cushion function at the same time. In addition, the present invention also adopts a design of self-joining between the two connecting cup bodies, thereby reducing the components required for the spinal rod connecting device and reducing the number of the components. The space required is to solve the disadvantages of the inventor's Taiwan patent TW-200936097.
本發明可進一步藉由環狀彈性襯墊、連結桿及/或連結杯體的穿孔大小,加以限制兩相鄰連結桿可調整之角度,使兩相鄰連結桿之間的角度不致於過大而導致無法復位或破壞該連結桿之結構,進而影響該骨固定系統之功能。The invention can further limit the adjustable angle of the two adjacent connecting rods by the size of the perforations of the annular elastic pad, the connecting rod and/or the connecting cup, so that the angle between the two adjacent connecting rods is not excessively large. The structure of the connecting rod cannot be reset or destroyed, thereby affecting the function of the bone fixing system.
本發明之一目的在提供一種脊椎桿件連結裝置。It is an object of the present invention to provide a spinal rod coupling device.
本發明之另一目的在提供一種具有環狀襯墊之脊椎桿件連結裝置。Another object of the present invention is to provide a spinal rod coupling device having an annular gasket.
本發明之又一目的在提供一種具有環狀彈性襯墊之脊椎桿件連結裝置。It is still another object of the present invention to provide a spinal rod coupling device having an annular resilient pad.
本發明之再一目的在提供一種連結杯體為自體連結之脊椎桿件連結裝置。Still another object of the present invention is to provide a spinal rod coupling device in which the coupling cup is self-joined.
本發明之另一目的在提供一種利用球弧結構,形成萬向結合之脊椎桿件連結裝置。Another object of the present invention is to provide a spinal rod coupling device that utilizes a ball-arc structure to form a universal joint.
本發明之再一目的在提供一種具有彈性功能之脊椎桿件連結裝置。Still another object of the present invention is to provide a spinal rod coupling device having an elastic function.
本發明之另一目的在提供一種具有動態功能之脊椎桿件連結裝置。Another object of the present invention is to provide a spinal rod coupling device having a dynamic function.
本發明之還一目的在提供一種可調整角度之脊椎桿件連結裝置。Still another object of the present invention is to provide an adjustable angle spinal rod coupling device.
本發明之又一目的在提供一種具有緩衝功能之脊椎桿件連結裝置。It is still another object of the present invention to provide a spinal rod coupling device having a cushioning function.
本發明之再一目的在提供一種有限度控制調整角度之脊椎桿件連結裝置。It is still another object of the present invention to provide a spinal rod coupling device that has a limited degree of control adjustment.
本發明之脊椎桿件連結裝置,其包括:第一連結桿,其至少一端為結合端,該結合端近桿端處的外側實質上成球弧狀,其桿端具有一接觸面;第二連結桿,其至少一端為結合端,該結合端近桿端處的外側實質上成球弧狀,其桿端具有一接觸面;一環狀襯墊,其用以放置於該第一連結桿與該第二連結桿之間,該環狀襯墊分別與該第一連結桿的接觸面及該第二連結桿的接觸面配合;第一連結杯體,杯體之杯口端具有連結機構,該杯體底部內側至少部份實質上成球弧形,該球弧曲率略小於或實質上等於該第一連結桿的結合端近桿端處外側的球弧曲率,用以和該第一連結桿的結合端近桿端處外側的球弧成萬向結合,該杯體底部具有一穿孔,用以使該第一連結桿的桿端由該連結杯體內部穿出到外部;及第二連結杯體,杯體之杯口端具有連結機構,該杯體底部內側至少部份實質上成球弧形,該球弧曲率略小於或實質上等於該第二連結桿的結合端近桿端處外側的球弧曲率,用以和該第二連結桿的結合端近桿端處外側的球弧成萬向結合,該杯體底部具有一穿孔,用以使該第二連結桿的桿端由該連結杯體內部穿出到外部,其中該第一連結杯體之杯口端連結機構和該第二連結杯體之杯口端連結機構形成自體連結。The spinal rod connecting device of the present invention comprises: a first connecting rod, at least one end of which is a joint end, the outer side of the joint end near the rod end is substantially spherical, and the rod end has a contact surface; At least one end of the connecting rod is a joint end, the outer side of the joint end is substantially spherical arc-shaped, the rod end has a contact surface, and an annular gasket is disposed on the first connecting rod Between the second connecting rod and the second connecting rod, the annular pad is respectively engaged with the contact surface of the first connecting rod and the contact surface of the second connecting rod; the first connecting cup body has a connecting mechanism at the cup end of the cup body At least a portion of the inner side of the bottom of the cup is substantially spherically curved, and the curvature of the arc of the ball is slightly smaller than or substantially equal to the curvature of the ball at the outer end of the joint end of the first connecting rod near the rod end, and the first The ball end of the joint end of the connecting rod near the rod end is universally coupled, and the bottom of the cup body has a perforation for allowing the rod end of the first connecting rod to pass through the inside of the connecting cup body to the outside; a two-connected cup body having a joint mechanism at the mouth end of the cup body, the bottom of the cup body At least a portion of the side is substantially spherically curved, and the arc curvature of the ball is slightly smaller than or substantially equal to the curvature of the ball arc at the outer end of the joint end of the second connecting rod near the rod end for binding to the second connecting rod The ball arc on the outer side of the rod end is universally coupled, and the bottom of the cup body has a perforation for allowing the rod end of the second connecting rod to pass out from the interior of the connecting cup body to the outside, wherein the first connecting cup body The cup end connection mechanism and the cup end connection mechanism of the second connection cup form a self-linking.
上述該等連結杯體之自體連結,其係利用第一連結杯體之杯口端連結機構及第二連結杯體之杯口端連結機構相互連結形成一完整杯體,以減少本脊椎桿件連結裝置的結構複雜度,並減低脊椎桿件連結裝置所佔用的空間大小,同時也進一步簡化了手術的複雜度。The self-linking of the connecting cups is connected to each other by a cup end connection mechanism of the first connecting cup and a cup end connecting mechanism of the second connecting cup to form a complete cup to reduce the spinal rod The structural complexity of the connecting device reduces the amount of space occupied by the spinal rod connecting device and further simplifies the complexity of the operation.
上述該等連結杯體,其自體連結可為任意習知之連結方式,如扣合連結、螺合連結、鎖合連結、卡合連結或節點連結(請參照圖4c、4d)。The self-linking of the connecting cups may be any conventional connection method such as a snap-fit connection, a screw connection, a lock connection, a snap connection or a node connection (please refer to FIGS. 4c and 4d).
上述該等連結杯體,其穿孔形狀並無限制,但以圓孔為較佳,其圓孔半徑略大於或等於該等連結桿的圓桿端半徑,以略大於該等連結桿的圓桿端半徑為較佳,用以使該等連結桿可在穿孔中萬向轉動,且可藉由該等穿孔的大小限制該等連結桿轉動的角度大小。The shape of the perforation of the connecting cup body is not limited, but a round hole is preferred, and the radius of the round hole is slightly larger than or equal to the radius of the round rod end of the connecting rod, so as to be slightly larger than the round rod of the connecting rod. Preferably, the end radius is such that the connecting rods can rotate universally in the perforations, and the magnitude of the rotation of the connecting rods can be limited by the size of the perforations.
上述該等連結桿,其可為兩端皆為結合端或僅一端為結合端,其中該等連結桿結合端的接觸面可具有一球弧機構,該球弧機構可為球弧面對球弧面、球弧凸塊對球弧凸塊,球弧凹槽對球弧凸塊(請參照圖2b),以球弧凹槽對球弧凸塊為較佳。其中該兩相鄰連結桿可藉由彼此的連結桿結合端之球弧機構,使兩相鄰連結桿之間可相對轉動,而達到調整兩相鄰連結桿之間的角度之目的。其中該等連結桿結合端接觸面之球弧凹槽與球弧凸塊旁可具有一調整平面,該調整平面可為任意習知類型之調整平面,如傾斜調整平面、弧狀調整平面等,讓兩相鄰連結桿之間可藉由該傾斜平面來限制角度,使兩相鄰連結桿之間的角度不致於過大而導致無法復位或破壞該連結桿之結構,進而影響該脊椎桿件連結裝置之功能。The connecting rods may be a combined end or only one end of the connecting end, wherein the connecting surface of the connecting end of the connecting rod may have a ball arc mechanism, and the ball arc mechanism may be a ball arc facing the ball arc The surface arc, the ball arc bump is a ball arc bump, the ball arc groove is a ball arc bump (refer to FIG. 2b), and the ball arc groove is preferably a ball arc bump. The two adjacent connecting rods can adjust the angle between the two adjacent connecting rods by relatively rotating between the two adjacent connecting rods by the ball arc mechanism of the connecting rods of the connecting rods. The ball arc groove and the ball arc bump of the connecting rod combined with the end contact surface may have an adjustment plane, and the adjustment plane may be any conventional type of adjustment plane, such as a tilt adjustment plane, an arc adjustment plane, and the like. The angle between the two adjacent connecting rods can be restricted by the inclined plane, so that the angle between the two adjacent connecting rods is not too large, so that the structure of the connecting rod cannot be reset or broken, thereby affecting the connection of the spinal rod The function of the device.
上述該等連結桿,其與結合端可為一體成形,或以任意習知之結合方式(例如卡合、螺合、鎖合等)結合成一體。其中該等連結桿類同習知脊椎固定桿,以圓桿狀為較佳。The connecting rods may be integrally formed with the joint ends or integrated in any conventional combination (for example, snapping, screwing, locking, etc.). Among them, the connecting rods are similar to the conventional spinal rods, and are preferably round rods.
上述該等連結桿結合端近桿端處的外側和該等連結杯體底部內側之球弧形成萬向結合,使該等連結桿於該等連結杯體內可藉由彼此之間的球弧面相對轉動,而達到調整兩相鄰連結桿之間的角度之目的(參見圖2b)。The ball joints of the connecting rods at the proximal end of the connecting rod and the inner side of the bottom of the connecting cups form a universal joint, so that the connecting rods can be curved by the ball between the connecting cups Relative rotation, to achieve the purpose of adjusting the angle between two adjacent connecting rods (see Figure 2b).
本脊椎桿件連結裝置可與任意習知之骨固定裝置連結,該骨固定裝置用以將本脊椎桿件連結裝置的連結桿桿身固定於該骨固定裝置之承接部(參見圖2a),該骨固定裝置可為習知的骨釘(其可為單軸骨釘mono-axial screw或多軸骨釘poly-axial screw)、類似骨固定裝置(例如骨鉤-hook等)、輔助骨固定裝置(例如側塊-side block等),或旋轉骨釘(參見本發明人等另一台灣專利TW-99100438),以骨釘或旋轉骨釘為較佳。該骨固定裝置與連結桿的結合方式可為習知固定桿和骨釘、骨鉤或側塊等的固定方式,例如直接螺合或卡合等。The spinal rod connecting device can be coupled to any conventional bone fixing device for fixing the connecting rod shaft of the spinal rod connecting device to the receiving portion of the bone fixing device (see FIG. 2a). The bone fixation device may be a conventional bone nail (which may be a mono-axial screw or a poly-axial screw), a bone-like fixation device (such as a bone hook-hook, etc.), and an auxiliary bone fixation device. (e.g., side block-side block, etc.), or a rotating bone nail (see another Taiwan patent TW-99100438 by the inventors), preferably a bone nail or a rotating nail. The manner in which the bone fixation device and the connecting rod are combined may be a fixed manner of a conventional fixing rod and a bone nail, a bone hook or a side block, such as direct screwing or snapping.
上述該環狀襯墊,可為具有彈性功能之環狀彈性襯墊,該環狀彈性襯墊用以裝置於兩相鄰連結桿之間,使兩相鄰連結桿之間具有緩衝的功能,讓患者於術後活動時,兩相鄰連結桿可藉由環狀彈性襯墊減緩兩相鄰連結桿所承受之衝力,而不是完全由健全之骨節承受所有壓力,這可能會加速鄰近骨節的老化。The annular gasket may be an elastic elastic ring having an elastic function, and the annular elastic gasket is disposed between two adjacent connecting rods to provide a buffering function between the two adjacent connecting rods. When the patient is in postoperative activities, the two adjacent connecting rods can relieve the impact of the two adjacent connecting rods by the annular elastic pad, instead of fully bearing all the pressure from the healthy joint, which may accelerate the adjacent joints. Ageing.
上述該環狀彈性襯墊,其可為任意習知之環狀彈性襯墊,如類似甜甜圈狀之中空環狀彈性襯墊、多片式環狀彈性襯墊、凹槽式環狀彈性、環型波浪狀襯墊(請參照圖3e、3f)或彈簧,該彈簧以盤狀彈簧為較佳。上述該環型波浪狀襯墊可為單層環型波浪狀襯墊(請參照圖3e)或多層環型波浪狀襯墊(請參照圖3f),該環型波浪狀襯墊可藉由其波浪形狀,具有彈性功能。The above-mentioned annular elastic pad may be any conventional annular elastic pad, such as a doughnut-shaped hollow annular elastic pad, a multi-piece annular elastic pad, a grooved ring elastic, A ring-shaped wavy gasket (please refer to Figs. 3e, 3f) or a spring, which is preferably a disc spring. The ring-shaped wavy gasket may be a single-layer annular wavy gasket (refer to FIG. 3e) or a multilayer annular wavy gasket (refer to FIG. 3f), and the annular wavy gasket may be Wavy shape with elastic function.
上述該等環狀彈性襯墊可進一步加一彈性材料加強其彈性功能,其中該彈性材料諸如塑膠(聚胺酯、聚矽氧或PEEK)、PE、UHMWPE、聚合物、橡膠或複合材料(意即由兩種或兩種以上材料製成)等(請參照圖3c),其中該環狀彈性襯墊之可為一具有調整平面之環狀彈性襯墊,以利於該環狀彈性襯墊與連結桿之間之角度調整。The above-mentioned annular elastic pads may further be reinforced with an elastic material such as plastic (polyurethane, polyfluorene or PEEK), PE, UHMWPE, polymer, rubber or composite material (ie by Two or more materials are made, etc. (please refer to FIG. 3c), wherein the annular elastic pad can be an annular elastic pad with an adjustment plane to facilitate the annular elastic pad and the connecting rod The angle between the adjustments.
上述骨固定裝置可與固定器連結,該固定器可為任意習知之固定器,用以與骨固定裝置之承接部結合,其中該結合方式可為任意習知之固定方式,如鎖合、卡合、螺合等,以螺合為較佳。The bone fixing device can be coupled to the fixing device. The fixing device can be any conventional fixing device for engaging with the receiving portion of the bone fixing device, wherein the bonding manner can be any conventional fixing manner, such as locking and snapping. , screwing, etc., preferably by screwing.
上述該連結桿固定於該骨固定裝置之承接部之固定方式,其可為任意習知之固定方式,如螺合固定(傳統骨釘與桿件之螺合連結)、鎖固固定或卡合固定等。The connecting rod is fixed to the receiving portion of the bone fixing device, and can be any conventional fixing manner, such as screwing and fixing (conventional bone nail and rod screwing), locking or snapping Wait.
上述該骨固定裝置、連結桿、連結杯體、環狀彈性襯墊或固定器,其材質可選用任何被認可且適用之骨科材料,如可植入人體之金屬材料,例如鐵基材料不鏽鋼316LVM(stainless steel 316 LVM)、鈦基材料Ti-6Al-4V、及鈷鉻鉬合金等。The bone fixation device, the connecting rod, the connecting cup, the annular elastic pad or the fixing device may be made of any approved or suitable orthopedic material, such as a metal material that can be implanted into the human body, such as an iron-based material stainless steel 316LVM. (stainless steel 316 LVM), titanium-based material Ti-6Al-4V, and cobalt-chromium-molybdenum alloy.
上述該連結桿,其亦可進一步配置一連結套筒以連結兩相鄰連結桿(請參照圖5),並藉由連結套筒調整兩相鄰連結桿之間的距離以配合不同脊椎間的間距。The connecting rod may further be provided with a connecting sleeve for connecting two adjacent connecting rods (please refer to FIG. 5), and the distance between the two adjacent connecting rods is adjusted by the connecting sleeve to match the intervertebral spaces. spacing.
圖1為本發明脊椎桿件連結裝置一較佳具體例分解示意圖。第一連結桿310與第二連結桿320分別穿過第一連結杯體110與第二連結杯體120,並將環狀彈性襯墊200放置於第一連結桿310與第二連結桿320之間,因第一連結桿310與第二連結桿320之近桿端處外側312、322大於第一連結杯體110與第二連結杯體120之穿孔,因此第一連結桿310與第二連結桿320將不會滑脫出連結杯體,第一連結杯體110與第二連結杯體120藉由自體連結機構將第一連結桿310、第二連結桿320及環狀彈性襯墊200包覆於該等連結杯體之中,第一連結桿310的球弧凸塊311與第二連結桿320的球弧凹槽321(請參照圖2b)藉由彼此的球弧機構,使連結桿之間可相對轉動,以調整兩相鄰連結桿間之角度,且進一步利用環狀彈性襯墊200之彈性功能,讓兩相鄰連結桿之間具有緩衝的功能,使患者於術後活動時,兩相鄰連結桿可藉由具有彈性功能之環狀彈性襯墊200減緩兩相鄰連結桿所承受之衝力。其中連結杯體的穿孔大小及/或環狀彈性襯墊200的角度,用以限制兩相鄰連結桿可調整之角度,使兩相鄰連結桿之間的角度不致於過大而導致無法復位或破壞該連結桿之結構,進而影響該脊椎桿件連結裝置之功能。第一連結桿310的近桿端處外側312與第二連結桿320的近桿端處外側322為球弧,使連結桿於連結杯體底部內側可藉由彼此之間的球弧面相對轉動,而達到調整兩相鄰連結桿之間的角度之目的。1 is an exploded perspective view of a preferred embodiment of a spinal rod connecting device of the present invention. The first connecting rod 310 and the second connecting rod 320 respectively pass through the first connecting cup body 110 and the second connecting cup body 120 , and the annular elastic pad 200 is placed on the first connecting rod 310 and the second connecting rod 320 Between the first connecting rod 310 and the second connecting rod 320, the outer side 312, 322 of the second connecting rod 320 is larger than the first connecting cup 110 and the second connecting cup 120, so that the first connecting rod 310 and the second connecting rod The rod 320 will not slip out of the connecting cup body, and the first connecting cup 110 and the second connecting cup 120 will connect the first connecting rod 310, the second connecting rod 320 and the annular elastic pad 200 by a self-linking mechanism. Covered in the connecting cups, the ball arc bumps 311 of the first connecting rod 310 and the ball arc grooves 321 of the second connecting rod 320 (please refer to FIG. 2b) are connected by the ball arc mechanism of each other. The rods are relatively rotatable to adjust the angle between the two adjacent connecting rods, and further utilize the elastic function of the annular elastic pad 200 to provide a buffering function between the two adjacent connecting rods, so that the patient can operate after surgery When the two adjacent connecting rods can slow down the two adjacent connecting rods by the elastic elastic cushion 200 having an elastic function Withstand the impulse. The size of the perforation of the connecting cup and/or the angle of the annular elastic pad 200 is used to limit the adjustable angle of the two adjacent connecting rods, so that the angle between the two adjacent connecting rods is not too large to be reset or The structure of the connecting rod is broken, thereby affecting the function of the spinal rod connecting device. The outer side 312 of the first connecting rod 310 near the rod end and the outer side 322 of the second connecting rod 320 are ball arcs, so that the connecting rod can be rotated relative to each other by the arc surface of the bottom of the connecting cup. And to achieve the purpose of adjusting the angle between two adjacent connecting rods.
圖2a為本發明脊椎桿件連結裝置一較佳具體例剖面示意圖。連結杯體100包覆第一連結桿310、環狀彈性襯墊200與第二連結桿320,第一連結桿310的球弧凸塊311與第二連結桿320的球弧凹槽321藉由彼此的球弧機構(請參照圖2b),使兩相鄰連結桿之間可相對轉動,以調整連結桿間之角度。連結桿的傾斜調整平面313、323的傾斜角度大小與環狀彈性襯墊200的調整平面的傾斜角度大小,用以有限度的調整彼此之間的角度。固定器500將連結桿桿身固定於承接部420中。2a is a cross-sectional view showing a preferred embodiment of the spinal rod connecting device of the present invention. The connecting cup 100 covers the first connecting rod 310, the annular elastic pad 200 and the second connecting rod 320, and the ball arc 311 of the first connecting rod 310 and the ball arc groove 321 of the second connecting rod 320 are used by The ball arc mechanism of each other (please refer to FIG. 2b) allows relative rotation between the two adjacent connecting rods to adjust the angle between the connecting rods. The magnitude of the inclination angle of the inclination adjusting planes 313, 323 of the connecting rod and the angle of inclination of the adjustment plane of the annular elastic pad 200 are used to adjust the angles between them to a limited extent. The holder 500 fixes the connecting rod shaft in the receiving portion 420.
圖2b為圖2a連結桿轉動示意圖。Figure 2b is a schematic view showing the rotation of the connecting rod of Figure 2a.
圖3a、3b、3c、3d、3e、3f分別為本發明脊椎固定系統之連結裝置環狀彈性襯墊的較佳具體例示意圖。圖3a顯示:環狀彈性襯墊200為類似中空甜甜圈之形狀。圖3b顯示:環狀彈性襯墊200為凹槽式環狀彈性襯墊。圖3c顯示:環狀彈性襯墊200為多片式環狀彈性襯墊,彈性體210用以加強其彈性調整的功能。圖3d顯示:環狀彈性襯墊200為彈簧。圖3e顯示:環狀彈性襯墊200為單層環型波浪狀襯墊。圖3f顯示:環狀彈性襯墊200為多層環型波浪狀襯墊。3a, 3b, 3c, 3d, 3e, and 3f are schematic views of preferred embodiments of the annular elastic spacer of the coupling device of the spinal fixation system of the present invention. Figure 3a shows that the annular elastic pad 200 is shaped like a hollow donut. Figure 3b shows that the annular resilient pad 200 is a grooved annular resilient pad. Fig. 3c shows that the annular elastic pad 200 is a multi-piece annular elastic pad, and the elastic body 210 serves to enhance its elastic adjustment function. Figure 3d shows that the annular resilient pad 200 is a spring. Figure 3e shows that the annular resilient pad 200 is a single layer annular wavy pad. Figure 3f shows that the annular resilient pad 200 is a multi-layer annular wavy pad.
圖4a、4b、4c、4d為本發明脊椎桿件連結裝置4種連結杯體的較佳具體例示意圖。圖4a顯示:第一連結杯體110與第二連結杯體120間以螺合方式連結。圖4b顯示:第一連結杯體110與第二連結杯體120間以卡合方式連結。圖4c顯示:連結杯體100藉由雙節點連結130,由側面包覆連結桿與環狀彈性襯墊200,並以卡合方式固定。圖4d顯示:連結杯體100藉由單節點連結140,由側面包覆連結桿與環狀彈性襯墊200,並以卡合方式固定。4a, 4b, 4c, and 4d are schematic views showing a preferred embodiment of four types of connecting cups of the spinal rod connecting device of the present invention. 4a shows that the first coupling cup 110 and the second coupling cup 120 are screwed together. FIG. 4b shows that the first connecting cup body 110 and the second connecting cup body 120 are coupled to each other by engagement. 4c shows that the connecting cup 100 is covered with the connecting rod and the annular elastic pad 200 by the side joint by the two-node joint 130, and is fixed by the engaging manner. 4d shows that the connecting cup 100 is covered by the single-node joint 140, and the connecting rod and the annular elastic pad 200 are covered by the side, and are fixed by the engaging manner.
圖5為本發明脊椎桿件連結裝置之多段式連結桿的較佳具體例示意圖。第一連結桿310與套筒360之間以螺合方式連結,並藉以調整長度,其中第二桿件320與套筒350之連結類同第一連結桿310與套筒360。Fig. 5 is a schematic view showing a preferred embodiment of the multi-segment connecting rod of the spinal rod connecting device of the present invention. The first connecting rod 310 and the sleeve 360 are screwed together and adjusted in length, wherein the second rod 320 is coupled to the sleeve 350 like the first connecting rod 310 and the sleeve 360.
圖6為本發明脊椎桿件連結裝置組裝於骨節的一較佳具體例示意圖。本發明裝置於脊椎骨節,環狀彈性襯墊200放置於兩相鄰連結桿之間,用以調整兩相鄰連結桿之角度。Fig. 6 is a schematic view showing a preferred embodiment of the spinal rod connecting device of the present invention assembled to the joint. The device of the present invention is placed on the vertebra joint, and the annular elastic pad 200 is placed between two adjacent connecting rods for adjusting the angle of the two adjacent connecting rods.
圖7為圖6另一視角示意圖。Figure 7 is a schematic view of another view of Figure 6.
100...連結杯體100. . . Link cup
110...第一連結杯體110. . . First connecting cup
120...第二連結杯體120. . . Second connecting cup
130...雙節點連結130. . . Two-node link
140...單節點連結140. . . Single node link
200...環狀彈性襯墊200. . . Annular elastic pad
210...彈性體210. . . Elastomer
310...第一連結桿310. . . First connecting rod
311...球弧凸塊311. . . Ball arc bump
312...近桿端處外側312. . . Near the outer end of the rod
313...傾斜調整平面313. . . Tilt adjustment plane
320...第二連結桿320. . . Second connecting rod
321...球弧凸塊321. . . Ball arc bump
322...近桿端處外側322. . . Near the outer end of the rod
323...傾斜調整平面323. . . Tilt adjustment plane
330...第三連結桿330. . . Third connecting rod
340...第四連結桿340. . . Fourth connecting rod
350...套筒350. . . Sleeve
360...套筒360. . . Sleeve
410...螺釘部410. . . Screw section
420...承接部420. . . Undertaking department
500...固定器500. . . Holder
510...骨節510. . . joint
520...骨節520. . . joint
530...骨節530. . . joint
圖1為本發明脊椎桿件連結裝置一較佳具體例分解示意圖。1 is an exploded perspective view of a preferred embodiment of a spinal rod connecting device of the present invention.
圖2a為本發明脊椎桿件連結裝置一較佳具體例剖面示意圖。2a is a cross-sectional view showing a preferred embodiment of the spinal rod connecting device of the present invention.
圖2b為圖2a連結桿轉動示意圖。Figure 2b is a schematic view showing the rotation of the connecting rod of Figure 2a.
圖3a、3b、3c、3d、3e、3f分別為本發明脊椎固定系統之連結裝置環狀彈性襯墊的較佳具體例示意圖。3a, 3b, 3c, 3d, 3e, and 3f are schematic views of preferred embodiments of the annular elastic spacer of the coupling device of the spinal fixation system of the present invention.
圖4a、4b、4c、4d為本發明脊椎桿件連結裝置4種連結杯體結合方式的較佳具體例示意圖。4a, 4b, 4c, and 4d are schematic views showing a preferred embodiment of the four types of connecting cups of the spinal rod connecting device of the present invention.
圖5為本發明脊椎桿件連結裝置之多段式連結桿的較佳具體例示意圖。Fig. 5 is a schematic view showing a preferred embodiment of the multi-segment connecting rod of the spinal rod connecting device of the present invention.
圖6為本發明脊椎桿件連結裝置組裝於骨節的一較佳具體例示意圖。Fig. 6 is a schematic view showing a preferred embodiment of the spinal rod connecting device of the present invention assembled to the joint.
圖7為圖6另一視角示意圖。Figure 7 is a schematic view of another view of Figure 6.
100...連結杯體100. . . Link cup
110...第一連結杯體110. . . First connecting cup
120...第二連結杯體120. . . Second connecting cup
200...環狀彈性襯墊200. . . Annular elastic pad
310...第一連結桿310. . . First connecting rod
312...近桿端處外側312. . . Near the outer end of the rod
320...第二連結桿320. . . Second connecting rod
322...近桿端處外側322. . . Near the outer end of the rod
Claims (7)
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CN1697930A (en) * | 2003-05-12 | 2005-11-16 | 松下电器产业株式会社 | Refrigerant compressor |
CN1893883A (en) * | 2003-09-08 | 2007-01-10 | 斯恩蒂斯有限公司 | Longitudinal carriage |
TWI275380B (en) * | 2004-12-31 | 2007-03-11 | Chao-Jan Wang | Fixation device for artificial spinal joint |
TW200936097A (en) * | 2008-02-18 | 2009-09-01 | Spine Asia Co Ltd A | Multiple-axis vertebra fixed rod |
TW201124109A (en) * | 2010-01-08 | 2011-07-16 | Shih-Hung Lin | Vertebra fixing system. |
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