技术领域technical field
本实用新型涉及骨科医疗器械领域，尤其涉及脊柱外科手术术中植骨辅助工具。The utility model relates to the field of orthopedic medical instruments, in particular to an auxiliary tool for bone grafting in spinal surgery.
背景技术Background technique
在骨科疾病中，胸、腰椎骨折是常见病，骨折椎椎体内植骨有助于脊柱骨折复位，促进骨折愈合。由于椎体位置深，周围有重要的神经、血管和丰富的肌肉，为了避免术中脊髓、神经和周围血管等损伤，手术中只能通过狭长的椎弓根，才能向骨折椎椎体内安全植骨。胸、腰椎椎弓根剖视近似椭圆形，可植入5.5-6.5mm椎弓根螺钉，手术中怎样通过椎弓根螺钉钉道向椎体内植骨而不影响置入螺钉的强度是受术成功的关键。In orthopedic diseases, thoracic and lumbar fractures are common diseases, and bone grafting in fractured vertebrae can help reduce spinal fractures and promote fracture healing. Due to the deep position of the vertebral body, there are important nerves, blood vessels and abundant muscles around it. In order to avoid damage to the spinal cord, nerves and peripheral blood vessels during the operation, only the long and narrow pedicle can be used to move safely into the fractured vertebral body. bone graft. The cross-section of thoracic and lumbar pedicles is approximately elliptical, and pedicle screws of 5.5-6.5mm can be implanted. During the operation, how to implant bone into the vertebral body through the pedicle screw channel without affecting the strength of the implanted screws is a matter of concern. key to success.
目前，临床上现有的经椎弓根植骨器由漏斗、管、顶棒组成。术中操作复杂，在手术过程中，螺钉置入后退出，再将植骨管用力插入或骨锤击入螺钉钉道后植骨，然后取出植骨器，再拧入螺钉固定。但是这些传统的植骨器(专利号：CN201320414770、CN201120166483、CN201020179025、CN201320375363)虽然能完成手术，但有以下几个方面的缺陷：At present, the clinically available transpedicle bone grafting device consists of a funnel, a pipe, and a top rod. The intraoperative operation is complicated. During the operation, the screw is inserted and withdrawn, and then the bone graft tube is inserted or hammered into the screw channel for bone grafting, and then the bone graft device is taken out, and then screwed in for fixation. But although these traditional bone grafting devices (patent No.: CN201320414770, CN201120166483, CN201020179025, CN201320375363) can complete the operation, they have the following defects:
1、在植骨管插入或是击入螺钉钉道内时，由于植骨管不是螺纹的壁，植骨管置入过程中会损伤已有的螺钉钉道，影响最终置入的螺钉的稳定性和强度，这显然对手术的成功和病人的康复具有很重要的影响；1. When the bone graft tube is inserted or driven into the screw channel, since the bone graft tube is not the wall of the thread, the existing screw channel will be damaged during the bone graft tube placement process, which will affect the stability of the final inserted screw and strength, which obviously have a significant impact on the success of the operation and the recovery of the patient;
2、没有引导装置，植骨管置入时的位置、角度容易出现偏差，损伤钉道入口处骨皮质，而钉道入口出骨皮质对螺钉的稳定性有极重要作用；2. Without a guiding device, the position and angle of the bone graft tube are likely to deviate, which will damage the cortical bone at the entrance of the screw channel, and the cortical bone at the entrance and exit of the screw channel plays an extremely important role in the stability of the screw;
3、由于没有限深结构，术中还需要多次反复地进行X光照射确定置入的位置和深度，这样操作延长了手术时间、增加术中出血量和手术风险，并致使病人和医生多次暴露在X光放射环境内影响病人和医生的健康；3. Since there is no depth-limiting structure, repeated X-ray irradiation is required to determine the position and depth of insertion during the operation. This operation prolongs the operation time, increases intraoperative blood loss and operation risk, and causes patients and doctors to spend too much time. Exposure to X-ray radiation affects the health of patients and doctors;
4、另外，传统的经椎弓根植骨器没有经皮微创经椎弓根植骨装置结构，因此其不能用于微创手术中的骨折椎植骨，而近年来，脊柱骨折微创手术已在各级医院开展，大多脊柱骨折病人可微创手术治疗。4. In addition, the traditional transpedicular bone graft device does not have a percutaneous minimally invasive transpedicular bone graft device structure, so it cannot be used for bone grafting of fractured vertebrae in minimally invasive surgery. In recent years, minimally invasive spinal fractures Operations have been carried out in hospitals at all levels, and most patients with spinal fractures can be treated with minimally invasive surgery.
综上所述，如何克服传统的经椎弓根植骨器的上述技术缺陷，是本领域技术人员亟待解决的技术问题。To sum up, how to overcome the above-mentioned technical defects of the traditional transpedicular bone grafting device is a technical problem to be solved urgently by those skilled in the art.
实用新型内容Utility model content
本实用新型的目的在于提供一种螺纹式经椎弓根椎体内植骨辅助装置，以解决上述问题。The purpose of this utility model is to provide a threaded transpedicle bone grafting auxiliary device in vertebral body to solve the above problems.
为了达到上述目的，本实用新型的技术方案是这样实现的：In order to achieve the above object, the technical solution of the utility model is achieved in that:
本实用新型提供一种螺纹式经椎弓根椎体内植骨辅助装置，包括中空导杆组件、螺纹植骨器、限深螺栓和植骨推杆，其中：The utility model provides a threaded auxiliary device for bone grafting in the vertebral body through the pedicle, including a hollow guide rod assembly, a threaded bone grafter, a depth-limiting bolt and a bone graft push rod, wherein:
所述中空导杆组件包括导针和中空导杆；所述中空导杆的延伸方向还设置有用于所述导针伸入并贯穿的通孔，且所述中空导杆的外表面设置有刻度线；The hollow guide rod assembly includes a guide pin and a hollow guide rod; the extension direction of the hollow guide rod is also provided with a through hole for the guide pin to extend into and pass through, and the outer surface of the hollow guide rod is provided with a scale Wire;
所述螺纹植骨器自前端至后端依次包括尖端部、螺纹植骨管部、植骨漏斗部，以及固定连接在所述螺纹植骨管部上的手柄；所述手柄用于驱动所述螺纹植骨管部旋转；所述螺纹植骨管部的外壁设置有外螺纹，所述螺纹植骨管部的内部沿螺纹植骨管部延伸方向还设置有用于所述中空导杆组件伸入并贯穿的管孔；The threaded bone grafter includes a tip, a threaded bone grafting tube, a bone grafting funnel, and a handle fixedly connected to the threaded bone grafting tube from the front end to the rear end; the handle is used to drive the The threaded bone graft tube part rotates; the outer wall of the threaded bone graft tube part is provided with external threads, and the inside of the threaded bone graft tube part is also provided with a hole for the hollow guide rod assembly to extend into the threaded bone graft tube part. And through the tube hole;
所述限深螺栓设置有内螺纹；所述限深螺栓的内螺纹与所述螺纹植骨管部的外壁上设置的外螺纹配合，并用于锁定所述限深螺栓上固定所述螺纹植骨器相对骨折椎椎弓根伸入位置；The depth-limiting bolt is provided with an internal thread; the internal thread of the depth-limiting bolt cooperates with the external thread provided on the outer wall of the threaded bone graft tube, and is used to lock the depth-limiting bolt and fix the threaded bone graft The insertion position of the device relative to the pedicle of the fractured vertebra;
所述植骨推杆自头部至尾部依次包括顿圆形杆尖部、杆体部、限深杆部和手柄部；所述植骨推杆上的顿圆形杆尖部、杆体部、限深杆部和手柄部均为实心圆柱杆，且外径依次变大；其中顿圆形杆尖部、杆体部的外径与螺纹植骨管部的通孔的内径相适应；限深杆部的外径大于螺纹植骨管部内径，防止植骨时推杆进入过深；所述植骨推杆用于手术中推入所述螺纹植骨器内放入的骨颗粒进入骨折椎椎体内。The bone graft push rod includes a circular rod tip, a rod body, a depth limiting rod and a handle from the head to the tail in sequence; Both the deep shaft and the handle are solid cylindrical rods, and the outer diameters become larger in turn; the outer diameters of the circular rod tip and the rod body are adapted to the inner diameter of the through hole of the threaded bone graft tube; the depth-limiting rod The outer diameter of the bone graft is larger than the inner diameter of the threaded bone graft tube to prevent the push rod from entering too deep during bone grafting; the bone graft push rod is used to push the bone particles placed in the threaded bone graft into the fractured vertebral body during the operation Inside.
优选的，所述导针的长度为250mm，直径为2mm；Preferably, the guide pin has a length of 250mm and a diameter of 2mm;
所述中空导杆的长度为200mm，所述中空导杆的头部为圆锥形尖端；所述中空导杆上有刻度线，起始位为自尖端30mm处，间隔设置的短刻度为5mm，长刻度线为10mm。The length of described hollow guide rod is 200mm, and the head of described hollow guide rod is a conical tip; There is scale mark on described hollow guide rod, and initial position is from tip 30mm place, and the short scale that interval is set is 5mm, The long scale line is 10mm.
优选的，在所述螺纹植骨器水平放置时，所述尖端部的所在端面为斜面，斜面的开口方向与所述螺纹植骨器手柄方向垂直。Preferably, when the threaded bone grafter is placed horizontally, the end surface of the tip is an inclined plane, and the opening direction of the inclined plane is perpendicular to the direction of the handle of the threaded bone grafter.
优选的，在所述螺纹植骨器水平放置时，所述螺纹植骨器中的所述尖端部的水平长度为5mm；所述螺纹植骨管部的水平长度为100mm，其内部的直径为5.3mm；所述植骨漏斗部的水平长度为长40mm，最大外缘的外径为40mm；所述手柄的长度为80mm，外径为30mm。Preferably, when the threaded bone grafter is placed horizontally, the horizontal length of the tip of the threaded bone grafter is 5mm; the horizontal length of the threaded bone graft tube is 100mm, and its inner diameter is 5.3mm; the horizontal length of the bone graft funnel is 40mm long, and the outer diameter of the largest outer edge is 40mm; the length of the handle is 80mm, and the outer diameter is 30mm.
优选的，所述螺纹植骨管部的外壁上的外螺纹为细牙型、单线、右旋螺纹。Preferably, the external thread on the outer wall of the threaded bone graft tube is a fine profile, single thread, right-handed thread.
优选的，所述限深螺栓的长度为30mm；所述限深螺栓的内螺纹为细牙型、单线、左旋螺纹。Preferably, the length of the depth-stopping bolt is 30 mm; the internal thread of the depth-stopping bolt is a fine-profile, single-line, left-handed thread.
优选的，所述植骨推杆自头部至尾部依次包括顿圆形杆尖、杆体、限深杆、手柄，且外径依次增大；Preferably, the bone-grafting push rod sequentially includes a circular rod tip, a rod body, a depth gauge rod, and a handle from the head to the tail, and the outer diameter increases sequentially;
其中，所述顿圆形杆尖的长度为5mm，外径为5.2mm；所述杆体的长度为100mm，外径为5.2mm；所述限深杆的长度为50mm，外径为5.5mm；手柄长度为80mm，其外径为30mm；Wherein, the length of the circular rod tip is 5mm, and the outer diameter is 5.2mm; the length of the rod body is 100mm, and the outer diameter is 5.2mm; the length of the depth-limiting rod is 50mm, and the outer diameter is 5.5mm; The length of the handle is 80mm, and its outer diameter is 30mm;
优选的，所述中空导杆组件、所述螺纹植骨器结构中的所述尖端部、螺纹植骨管部、植骨漏斗部，以及限深螺栓和所述植骨推杆的圆形杆尖部、杆体部、限深杆部均为金属结构件；Preferably, the hollow guide rod assembly, the tip part in the threaded bone graft structure, the threaded bone graft tube part, the bone graft funnel part, the depth-limiting bolt and the circular rod of the bone graft push rod The tip, rod body and depth-limiting rod are all metal structural parts;
所述螺纹植骨器结构中的所述手柄和所述植骨推杆上的手柄部均为木质结构件。The handle in the threaded bone graft structure and the handle part on the bone graft push rod are both wooden structural parts.
与现有技术相比，本实用新型实施例的优点在于：Compared with the prior art, the utility model embodiment has the advantages of:
本实用新型提供了一种螺纹式经椎弓根椎体内植骨辅助装置，分析上述结构可知：本螺纹式经椎弓根椎体内植骨辅助装置由导针、中空导杆、螺纹植骨器、植骨推杆、限深螺栓组成。该装置有以下创造新意：第一、植骨管是为螺纹结构，置入过程中可以顺椎弓根钉道螺纹拧入，不会损伤的螺钉钉道，不影响置入螺钉的稳定性和强度；第二、有导针、中空导杆引导，置入方便，位置、角度不会出现偏差，不会损伤钉道入口处骨皮质；第三、设有限深螺栓，置入前限定深度，术中不需要X光照射，节约手术时间、避免术中病人和医生不必要的放射暴露；第四、有导针、中空导杆经皮微创经椎弓根植骨引导装置，能用于微创手术中的骨折椎植骨。The utility model provides a threaded transpedicle bone grafting auxiliary device in the vertebral body. By analyzing the above structure, it can be seen that the threaded type transpedicular bone grafting auxiliary device in the vertebral body consists of a guide pin, a hollow guide rod, a threaded implant Consists of bone implements, bone graft push rods, and depth-limiting bolts. The device has the following innovative ideas: First, the bone graft tube is a threaded structure, which can be screwed in along the pedicle screw track during insertion, without damaging the screw track, and does not affect the stability and stability of the inserted screw. Strength; second, it is guided by a guide pin and a hollow guide rod, which is convenient to place, and the position and angle will not deviate, and will not damage the cortical bone at the entrance of the screw channel; third, it is equipped with a depth-limiting bolt to limit the depth before insertion. There is no need for X-ray irradiation during the operation, which saves operation time and avoids unnecessary radiation exposure of patients and doctors during the operation; fourth, the percutaneous minimally invasive transpedicular bone graft guide device with guide pins and hollow guide rods can be used for Fractured vertebral bone grafting in minimally invasive surgery.
脊柱骨折后路复位固定、骨折椎植骨融合术在各级医院开展，螺纹式经椎弓根椎体内植骨辅助装置发明后，可广泛应用于临床中，有良好的应用前景和经济社会效益。Posterior reduction and fixation of spinal fractures and fusion of fractured vertebrae are carried out in hospitals at all levels. After the invention of the screw-type transpedicular bone grafting auxiliary device in the vertebral body, it can be widely used in clinical practice and has good application prospects and economic and social benefits. benefit.
附图说明Description of drawings
图1为本实用新型实施例一提供的螺纹式经椎弓根椎体内植骨辅助装置中的中空导杆组件的爆炸结构示意图；Fig. 1 is a schematic diagram of the exploded structure of the hollow guide rod assembly in the threaded transpedicular bone graft auxiliary device provided by Embodiment 1 of the present utility model;
图2a为本实用新型实施例一提供的螺纹式经椎弓根椎体内植骨辅助装置中的螺纹植骨器的结构示意图；Fig. 2a is a schematic structural view of the threaded bone grafter in the threaded transpedicular bone graft auxiliary device provided by Embodiment 1 of the present utility model;
图2b为图2a中的螺纹植骨器的螺纹植骨管部的剖面视图；Fig. 2b is a cross-sectional view of the threaded bone graft tube of the threaded bone grafter in Fig. 2a;
图3a为本实用新型实施例一提供的螺纹式经椎弓根椎体内植骨辅助装置中的限深螺栓的主视结构示意图；Fig. 3a is a schematic diagram of the front view of the depth-limiting bolt in the threaded transpedicular bone graft auxiliary device provided by Embodiment 1 of the present utility model;
图3b为图3a中限深螺栓的剖面视图；Fig. 3b is a sectional view of the depth-limiting bolt in Fig. 3a;
图4为本实用新型实施例一提供的螺纹式经椎弓根椎体内植骨辅助装置中的植骨推杆的结构示意图以及局部剖面视图。Fig. 4 is a structural schematic diagram and a partial cross-sectional view of a bone graft push rod in the threaded transpedicular bone graft auxiliary device provided by Embodiment 1 of the present utility model.
具体实施方式Detailed ways
下面通过具体的实施例子并结合附图对本实用新型做进一步的详细描述。The utility model will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
实施例一Embodiment one
本实用新型实施例一提供了一种螺纹式经椎弓根椎体内植骨辅助装置，包括中空导杆组件(参见图1)、螺纹植骨器、限深螺栓和植骨推杆，其中：各个组件、零件之间具有如下具体结构、位置关系、连接方式和装配关系：Embodiment 1 of the present utility model provides a threaded transpedicle bone graft auxiliary device in vertebral body, including a hollow guide rod assembly (see Figure 1), a threaded bone grafter, a depth-limiting bolt, and a bone graft push rod, wherein : Each component and part has the following specific structure, positional relationship, connection mode and assembly relationship:
参见图1，所述中空导杆组件包括导针1和中空导杆2；所述中空导杆2的延伸方向还设置有用于所述导针伸入并贯穿的通孔3，且所述中空导杆2的外表面设置有刻度线；Referring to Fig. 1, the hollow guide rod assembly includes a guide pin 1 and a hollow guide rod 2; the extending direction of the hollow guide rod 2 is also provided with a through hole 3 for the guide pin to extend into and pass through, and the hollow The outer surface of the guide rod 2 is provided with a scale line;
在图1中：导针和中空导杆：导针1，长250mm，直径2mm，用于置入椎弓根钉道中起引导作用。中空导杆2，长200mm，尖端为圆锥形方便顺导针置入。中空导杆上有刻度尺，起始位为30mm，短刻度为5mm，长刻度线为10mm，作为限深螺栓的深度限制。图中底部结构为中空导杆的剖视图，外径5.2mm，内径2mm，与导针相配合。In Fig. 1: guide pin and hollow guide rod: guide pin 1, 250 mm in length and 2 mm in diameter, is used to be placed in the pedicle screw channel for guiding. The hollow guide rod 2 is 200 mm long, and the tip is conical to facilitate insertion along the guide wire. There is a scale on the hollow guide rod, the initial position is 30mm, the short scale is 5mm, and the long scale is 10mm, which are used as the depth limit of the depth-limiting bolt. The bottom structure in the figure is a cross-sectional view of a hollow guide rod with an outer diameter of 5.2mm and an inner diameter of 2mm, which is matched with the guide pin.
参见图2a，所述螺纹植骨器自前端至后端依次包括尖端部4、螺纹植骨管部5、植骨漏斗部6，以及固定连接在所述植骨漏斗部6上的手柄7；所述手柄7用于驱动所述螺纹植骨管部5旋转；所述螺纹植骨管部5的外壁设置有外螺纹，所述螺纹植骨管部5的内部沿螺纹植骨管部延伸方向还设置有用于所述中空导杆组件伸入并贯穿的导孔8；所述植骨器的尖端部4、螺纹植骨管部5的内部沿螺纹植骨管部延伸方向还设置有沿中空导杆组件置入并贯穿的管孔。所述螺纹植骨管部5的外壁设置有外螺纹，与限深螺栓的内螺纹匹配。Referring to Fig. 2a, the threaded bone grafter sequentially includes a tip portion 4, a threaded bone grafting tube portion 5, a bone grafting funnel portion 6, and a handle 7 fixedly connected to the bone grafting funnel portion 6 from the front end to the rear end; The handle 7 is used to drive the threaded bone graft tube part 5 to rotate; the outer wall of the threaded bone graft tube part 5 is provided with external threads, and the inside of the threaded bone graft tube part 5 is along the extending direction of the threaded bone graft tube part A guide hole 8 for the hollow guide rod assembly to penetrate and pass through is also provided; the tip part 4 of the bone grafter and the inside of the threaded bone graft tube part 5 are also provided with hollow holes along the extending direction of the threaded bone graft tube part. The pipe hole through which the guide rod assembly is placed and penetrated. The outer wall of the threaded bone graft tube 5 is provided with external threads, which match with the internal threads of the depth-limiting bolts.
需要说明的是，本螺纹式经椎弓根椎体内植骨辅助装置的操作方法，手术中是先放入导针，再顺导针放入导杆，再在导杆引导下放入螺纹植骨管，由细到粗。这样一来，先由导针引导中空导杆、再由中空导杆引导螺纹植骨器，一级一级地逐级置入，置入更方便置入位置更准确，位置、角度不会出现偏差，不会损伤钉道入口处骨皮质；导针外径更细可以预先实现精确位置置入，然后在其锁定置入位置后再置入中空导杆和螺纹植骨器，即可有利于微创手术中的骨折椎植骨。It should be noted that the operation method of the threaded transpedicular bone graft auxiliary device in the vertebral body is to put the guide wire first, then put the guide rod along the guide wire, and then put the screw thread under the guidance of the guide rod. Bone graft tube, from thin to thick. In this way, the hollow guide rod is first guided by the guide pin, and then the threaded bone graft is guided by the hollow guide rod, and then inserted step by step, which is more convenient and accurate, and the position and angle will not appear. Deviation will not damage the cortical bone at the entrance of the screw channel; the thinner outer diameter of the guide pin can be placed in the precise position in advance, and then the hollow guide rod and threaded bone grafter can be placed after it is locked in place, which is beneficial Fractured vertebral bone grafting in minimally invasive surgery.
参见图2a，螺纹植骨器：由成斜面的尖端部4(长5mm)、螺纹植骨管部5(长100mm)、植骨漏斗部6(长40mm，外径40mm)、手柄7(长度为80mm)组成。Referring to Fig. 2a, the threaded bone graft device: consists of a beveled tip portion 4 (5mm in length), a threaded bone grafting tube portion 5 (100mm in length), a bone grafting funnel portion 6 (40mm in length, 40mm in outer diameter), and a handle 7 (length 80mm) composition.
其中，尖端部4、螺纹植骨管部5、植骨漏斗部6(均为金属材质，手柄7为木质，手感好，可高温高压或等离子消毒；另外，手柄7由金属杆与植骨漏斗部6相连。Wherein, the tip portion 4, the threaded bone grafting tube portion 5, and the bone grafting funnel portion 6 (all are made of metal, and the handle 7 is made of wood, has good hand feeling, and can be sterilized by high temperature and high pressure or plasma; in addition, the handle 7 is composed of a metal rod and a bone grafting funnel. Part 6 is connected.
图2b中底部结构为螺纹植骨管部5的剖视图，外螺纹，细牙型，单线，右旋螺纹，与术中所有螺钉螺纹一致，大径5.5mm，中径5.4mm，小径5.3mm。螺距，导程与螺钉一致。The bottom structure in Fig. 2b is a cross-sectional view of the threaded bone graft tube part 5, with external threads, fine tooth type, single thread, and right-handed threads, which are consistent with the threads of all screws in the operation, with a major diameter of 5.5 mm, a medial diameter of 5.4 mm, and a minor diameter of 5.3 mm. The pitch and lead are consistent with the screw.
其装配关系为：螺纹植骨器经过图1的中空导杆旋转拧入椎弓根，进入骨折椎体；螺纹植骨管与图3的限深螺栓匹配。The assembly relationship is as follows: the threaded bone graft is screwed into the pedicle through the hollow guide rod shown in Figure 1 and then enters the fractured vertebral body; the threaded bone graft tube matches the depth-limiting bolt shown in Figure 3 .
参见图3a和图3b，所述限深螺栓8设置有内螺纹；所述限深螺栓8的内螺纹与所述螺纹植骨管部5的外壁上设置的外螺纹配合，并用于锁定所述限深螺栓8固定所述螺纹植骨器上相对骨折椎椎弓根的限位伸入位置；3a and 3b, the depth-stop bolt 8 is provided with an internal thread; the internal thread of the depth-stop bolt 8 cooperates with the external thread provided on the outer wall of the threaded bone graft tube part 5, and is used to lock the Depth-limiting bolt 8 fixes the limited extension position on the threaded bone graft relative to the fractured vertebral pedicle;
在图3a中的限深螺栓：图3中的上部结构示意限深螺栓8的主视图，底部结构为限深螺栓8的剖视图；螺栓长30mm，可以方便手指操作；图3b为剖视图，内螺纹，细牙型，单线，左旋螺纹，与螺纹植骨管匹配，大径5.5mm，中径5.4mm，小径5.3mm。螺距，导程与螺钉一致。通过中空导杆的刻度尺测量在置入前限深。The depth-limiting bolt in Figure 3a: the upper structure in Figure 3 shows the front view of the depth-limiting bolt 8, and the bottom structure is a cross-sectional view of the depth-limiting bolt 8; the bolt is 30mm long and can be easily operated by fingers; Figure 3b is a cross-sectional view with internal threads , Fine tooth type, single thread, left-handed thread, matching with the threaded bone graft tube, the major diameter is 5.5mm, the middle diameter is 5.4mm, and the minor diameter is 5.3mm. The pitch and lead are consistent with the screw. Scale measurement through the hollow guide rod to limit the depth before insertion.
参见图4，所述植骨推杆自头部至尾部依次包括顿圆形杆尖部9、杆体部10、限深杆部11和手柄部12；所述植骨推杆上的顿圆形杆尖部9、杆体部10、限深杆部11和手柄部12均为实心圆柱杆，且外径依次变大；其中顿圆形杆尖部9、杆体部10的外径与螺纹植骨管部5的管孔的内径相适应；所述植骨推杆的顿圆形杆尖部9和杆体部10用于推动术中放入螺纹植骨管部5内的骨颗粒进入骨折椎体。需要说明的是，在导针、中空导杆在螺纹植骨器放好后就取出，仅留下螺纹植骨器，将骨颗粒分次放入漏斗中，用植骨推杆推入骨折椎体。Referring to Fig. 4, the bone graft push rod includes a circular rod tip 9, a rod body 10, a depth limiting rod 11 and a handle part 12 from the head to the tail in sequence; the circular rod on the bone graft Rod tip 9, rod body 10, depth-limiting rod 11 and handle 12 are all solid cylindrical rods, and their outer diameters become larger in turn; among them, the outer diameters of circular rod tip 9 and rod body 10 are consistent with the threaded bone graft. The inner diameter of the tube hole of the tube part 5 is compatible; the circular rod tip 9 and the rod body part 10 of the bone graft push rod are used to push the bone particles put into the threaded bone graft tube part 5 during the operation into the fractured vertebral body . It should be noted that the guide pin and the hollow guide rod are taken out after the threaded bone grafter is placed, and only the threaded bone grafter is left, and the bone particles are put into the funnel in stages, and pushed into the fractured vertebra with the bone graft pusher. body.
参见图4所示意的植骨推杆结构：由圆形杆尖部9(长5mm)，杆体部10(长100mm)，限深杆部11(长50mm)，手柄部12(80mm)组成。圆形杆尖部9，杆体部10，限深杆部11，手柄部12均为金属材质，手柄部12为木质，手感好，可高温高压或等离子消毒，由金属杆与限深杆部11相连，底部结构分别为杆体部10，限深杆部11的剖视图，实心，分别为直径5.2mm，5.5mm。Referring to the structure of the bone graft push rod shown in Figure 4: it consists of a circular rod tip 9 (5mm long), a rod body 10 (100mm long), a depth-limiting rod 11 (50mm long), and a handle 12 (80mm). Circular rod tip 9, rod body 10, depth-limiting rod 11, and handle 12 are all made of metal. Connected, the bottom structure is the cross-sectional view of the rod body 10 and the depth-limiting rod 11, which are solid and have diameters of 5.2mm and 5.5mm respectively.
下面对本实用新型实施例提供的螺纹式经椎弓根椎体内植骨辅助装置结合附图进行说明：The threaded transpedicle bone grafting auxiliary device provided in the embodiment of the present invention will be described below in conjunction with the accompanying drawings:
优选的，所述导针的长度为250mm，直径为2mm；Preferably, the guide pin has a length of 250mm and a diameter of 2mm;
所述中空导杆的长度为200mm，所述中空导杆的头部为圆锥形尖端；所述中空导杆上有刻度线的起始位为自头部30mm处，间隔设置的短刻度为5mm，长刻度线为10mm。The length of the hollow guide rod is 200mm, and the head of the hollow guide rod is a conical tip; the initial position of the scale mark on the hollow guide rod is 30mm from the head, and the short scale set at intervals is 5mm , the long scale line is 10mm.
优选的，在所述螺纹植骨器水平放置时，所述尖端部的所在端面为斜面。Preferably, when the threaded bone grafter is placed horizontally, the end surface where the tip is located is an inclined surface.
优选的，在所述螺纹植骨器水平放置时，所述螺纹植骨器中的所述尖端部的水平长度为5mm；所述螺纹植骨管部的水平长度为100mm，其内部的导孔直径为5.3mm；所述植骨漏斗部的水平长度为长40mm，最大外缘的外径为40mm；所述手柄的长度为80mm。Preferably, when the threaded bone grafter is placed horizontally, the horizontal length of the tip of the threaded bone grafter is 5mm; the horizontal length of the threaded bone graft tube is 100mm, and the guide hole inside it is The diameter is 5.3mm; the horizontal length of the bone graft funnel is 40mm long, and the outer diameter of the largest outer edge is 40mm; the length of the handle is 80mm.
优选的，所述螺纹植骨管部的外壁上的外螺纹为细牙型、单线、右旋螺纹。Preferably, the external thread on the outer wall of the threaded bone graft tube is a fine profile, single thread, right-handed thread.
优选的，所述限深螺栓的长度为30mm；所述限深螺栓的内螺纹为细牙型、单线、左旋螺纹。Preferably, the length of the depth-stopping bolt is 30 mm; the internal thread of the depth-stopping bolt is a fine-profile, single-line, left-handed thread.
优选的，所述植骨推杆自头部至尾部依次包括顿圆形杆尖、杆体、限深杆、手柄，且外径依次增大；Preferably, the bone-grafting push rod sequentially includes a circular rod tip, a rod body, a depth gauge rod, and a handle from the head to the tail, and the outer diameter increases sequentially;
其中，所述顿圆形杆尖的长度为5mm，外径为5.2mm；所述杆体的长度为100mm，外径为5.2mm；所述限深杆的长度为50mm，外径为5.5mm；手柄长度为80mm，其外径大于所述限深杆的外径；Wherein, the length of the circular rod tip is 5mm, and the outer diameter is 5.2mm; the length of the rod body is 100mm, and the outer diameter is 5.2mm; the length of the depth-limiting rod is 50mm, and the outer diameter is 5.5mm; The length of the handle is 80mm, and its outer diameter is larger than that of the depth gauge rod;
优选的，所述中空导杆组件、所述螺纹植骨器结构中的所述尖端部、螺纹植骨管部、植骨漏斗部，以及限深螺栓和所述植骨推杆的圆形杆尖部、杆体部、限深杆部均为金属结构件；Preferably, the hollow guide rod assembly, the tip part in the threaded bone graft structure, the threaded bone graft tube part, the bone graft funnel part, the depth-limiting bolt and the circular rod of the bone graft push rod The tip, rod body and depth-limiting rod are all metal structural parts;
所述螺纹植骨器结构中的所述手柄和所述植骨推杆上的手柄部均为木质结构件。The handle in the threaded bone graft structure and the handle part on the bone graft push rod are both wooden structural parts.
本实用新型的关键技术点：1、螺纹式植骨管；2、限深固定螺栓；3、中空导杆及导针。Key technical points of the utility model: 1. threaded bone grafting tube; 2. depth-limiting fixing bolt; 3. hollow guide rod and guide pin.
下面对本实用新型提供的螺纹式经椎弓根椎体内植骨辅助装置所带来的技术效果进行说明：The technical effects brought by the threaded transpedicular vertebral bone grafting auxiliary device provided by the utility model are described below:
本螺纹式经椎弓根椎体内植骨辅助装置由导针、中空导杆、螺纹植骨器、植骨推杆、限深螺栓组成。该装置有以下创造新意：第一、植骨管是为螺纹结构，置入过程中可以顺椎弓根钉道螺纹拧入，不会损伤的螺钉钉道，不影响置入螺钉的稳定性和强度；第二、有导针、中空导杆引导，置入方便，位置、角度不会出现偏差，不会损伤钉道入口处骨皮质；第三、设有限深螺栓，置入前限定深度，术中不需要X光照射，节约手术时间、避免术中病人和医生不必要的放射暴露；第四、有导针、中空导杆经皮微创经椎弓根植骨引导装置，能用于微创手术中的骨折椎植骨。The threaded transpedicle bone graft auxiliary device consists of a guide pin, a hollow guide rod, a threaded bone grafter, a bone graft push rod, and a depth-limiting bolt. The device has the following innovative ideas: First, the bone graft tube is a threaded structure, which can be screwed in along the pedicle screw track during insertion, without damaging the screw track, and does not affect the stability and stability of the inserted screw. Strength; second, it is guided by a guide pin and a hollow guide rod, which is convenient to place, and the position and angle will not deviate, and will not damage the cortical bone at the entrance of the screw channel; third, it is equipped with a depth-limiting bolt to limit the depth before insertion. There is no need for X-ray irradiation during the operation, which saves operation time and avoids unnecessary radiation exposure of patients and doctors during the operation; fourth, the percutaneous minimally invasive transpedicular bone graft guide device with guide pins and hollow guide rods can be used for Fractured vertebral bone grafting in minimally invasive surgery.
脊柱骨折后路复位固定、骨折椎植骨融合术在各级医院开展，螺纹式经椎弓根椎体内植骨辅助装置发明后，可广泛应用于临床中，有良好的应用前景和经济社会效益。Posterior reduction and fixation of spinal fractures and fusion of fractured vertebrae are carried out in hospitals at all levels. After the invention of the screw-type transpedicular bone grafting auxiliary device in the vertebral body, it can be widely used in clinical practice and has good application prospects and economic and social benefits. benefit.
以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型，对于本领域的技术人员来说，本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396771.2UCN204072280U (en) | 2014-07-17 | 2014-07-17 | A kind of screw-type pedicle Vertebral graft auxiliary device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396771.2UCN204072280U (en) | 2014-07-17 | 2014-07-17 | A kind of screw-type pedicle Vertebral graft auxiliary device |
| Publication Number | Publication Date |
|---|---|
| CN204072280Utrue CN204072280U (en) | 2015-01-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420396771.2UExpired - Fee RelatedCN204072280U (en) | 2014-07-17 | 2014-07-17 | A kind of screw-type pedicle Vertebral graft auxiliary device |
| Country | Link |
|---|---|
| CN (1) | CN204072280U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118830908A (en)* | 2024-09-23 | 2024-10-25 | 北京维卓致远医疗科技股份有限公司 | Long bone fracture reduction instrument |
| CN118845187A (en)* | 2024-09-23 | 2024-10-29 | 北京维卓致远医疗科技股份有限公司 | A navigation reduction and reduction maintenance device for long bone fractures |
| CN118845188A (en)* | 2024-09-23 | 2024-10-29 | 北京维卓致远医疗科技股份有限公司 | A kit for navigation reduction of long bone fractures |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118830908A (en)* | 2024-09-23 | 2024-10-25 | 北京维卓致远医疗科技股份有限公司 | Long bone fracture reduction instrument |
| CN118845187A (en)* | 2024-09-23 | 2024-10-29 | 北京维卓致远医疗科技股份有限公司 | A navigation reduction and reduction maintenance device for long bone fractures |
| CN118845188A (en)* | 2024-09-23 | 2024-10-29 | 北京维卓致远医疗科技股份有限公司 | A kit for navigation reduction of long bone fractures |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | Effective date of registration:20151207 Address after:646000 Taiping Street, Sichuan, Luzhou, No. 25 Patentee after:Hospital Attached to Luzhou Medical College Address before:646099 Luzhou province Sichuan City Jiangyang District Taiping Street No. 23 Building No. 76 Patentee before:Wang Song | |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20150107 Termination date:20160717 |