CN105286968A - Distractive osteogenesis device suitable for narrow and small space - Google Patents
Distractive osteogenesis device suitable for narrow and small space Download PDFInfo
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- 230000011164 ossification Effects 0.000 title claims abstract description 20
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- 210000000988 bone and bone Anatomy 0.000 abstract description 42
- 230000014759 maintenance of location Effects 0.000 abstract description 17
- 208000006735 Periostitis Diseases 0.000 abstract description 5
- 210000003460 periosteum Anatomy 0.000 abstract description 5
- 210000001519 tissue Anatomy 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
- A61B17/663—Alignment, compression or distraction mechanisms for jaw bones, e.g. subcutaneous distractors with external access
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Abstract
本发明公开了一种适用于狭小空间的牵张成骨器，包括牵张板、单自由度轴向滑动配合于牵张板的固位杆和用于控制固位杆轴向运动的驱动限位组件；通过将固位杆的前端与内侧骨直接作用，而固位杆的后段以可被固定的方式相对牵张板沿轴向单自由度滑动设置，并利用驱动限位组件对固位杆进行驱动并固定，减少了固定板，适用于狭小手术空间；同时固位杆的作用力直接作用于支撑骨可以垂直牵张或顶起骨甚至骨膜等组织。
The invention discloses a distraction osteogenesis device suitable for narrow spaces, which comprises a distraction plate, a single-degree-of-freedom axially sliding retaining rod fitted on the distracting plate, and a driving limiter for controlling the axial movement of the retaining rod. position component; by directly acting on the front end of the retention rod with the medial bone, the rear section of the retention rod can be fixedly slid relative to the distraction plate along the axial single degree of freedom, and the drive limit component is used to control the retention rod It is driven and fixed, reducing the number of fixed plates, and is suitable for narrow surgical spaces; at the same time, the force of the retaining rod acts directly on the supporting bone to vertically stretch or lift up bone or even periosteum and other tissues.
Description
技术领域technical field
本发明涉及医疗器械领域，具体涉及一种适用于狭小空间的牵张成骨器。The invention relates to the field of medical instruments, in particular to a distraction bone generator suitable for narrow spaces.
背景技术Background technique
在骨科手术中，牵张成骨(DistractiveOsteogenesis)是在两个骨断面或者骨膜与骨之间，经过一周左右的维持期，使其逐渐分离(一般是每天1～1.5mm)，则两者之间的骨痂被牵张会成长新骨，以实现骨增量达到缺损的修复和延长作用，是目前国际上最成功的内源性组织工程；这类手术在颅颌面整形、修复重建以及颌面外科中也使用较多，也很成熟；现有技术中，牵张器包括驱动杆和固定与驱动杆上的两端固定钢板，两端固定钢板分别和需要牵张的骨骼固定，驱动杆为设置有螺纹机构的可沿延长的套杆，通过特殊的工具旋转螺纹机构，使两块骨头相对运动，进而长成新骨；而由于两端固定钢板通过螺钉固定于被牵张骨上，在狭小空间内的牵张手术中，如一个扁骨面增厚的的牵张中，现有的牵张器不易安装固定，使得很多类似的牵引难以实现，局限了骨牵引技术的发挥。。In orthopedic surgery, distraction osteogenesis (Distractive Osteogenesis) is between two bone sections or between the periosteum and the bone. After a maintenance period of about a week, they are gradually separated (generally 1-1.5mm per day). The intervening callus will be stretched to grow new bone to achieve bone augmentation to repair and prolong the defect. It is currently the most successful endogenous tissue engineering in the world; Also use more in the maxillofacial surgery, also very mature; In the prior art, distractor comprises drive rod and fixation and two ends fixed steel plates on the drive rod, and two ends fixed steel plates are respectively fixed with the bone that needs stretching, drives The rod is equipped with a threaded mechanism that can be extended along the sleeve rod. The threaded mechanism is rotated by a special tool to make the two bones move relative to each other, and then grow into a new bone; and because the fixed steel plate at both ends is fixed on the distracted bone by screws , In the distraction operation in a narrow space, such as the distraction of a thickened flat bone surface, the existing distractors are not easy to install and fix, making many similar distractions difficult to achieve, which limits the use of bone distraction technology. .
因此，为解决以上问题，需要一种适用于狭小空间的牵张成骨器，能够适用于狭窄的牵张手术空间，改变了固位力的方向，牵张驱动力与被牵张骨受到的作用力同轴，减少固定板的设置，结构简单，体积紧凑，驱动方便，保证断面内新骨均匀生长。Therefore, in order to solve the above problems, there is a need for a distraction osteogenesis device suitable for narrow spaces, which can be applied to narrow distraction operation spaces, and the direction of the retention force is changed. The distraction driving force and the force of the distracted bone The force is coaxial, reducing the setting of the fixing plate, the structure is simple, the volume is compact, the driving is convenient, and the new bone in the section is guaranteed to grow evenly.
发明内容Contents of the invention
有鉴于此，本发明的目的是克服现有技术中的缺陷，提供适用于狭小空间的牵张成骨器，能够适用于狭窄的牵张手术空间，改变了固位力的方向，牵张驱动力与被牵张骨受到的作用力同轴减少固定板的设置，结构简单，体积紧凑，驱动方便，同时，，保证断面内新骨均匀生长。In view of this, the purpose of the present invention is to overcome the defects in the prior art, to provide a distraction bone generator suitable for narrow spaces, to be suitable for narrow distraction operation spaces, to change the direction of the retaining force, and to drive the distraction The force is coaxial with the force received by the distracted bone to reduce the setting of the fixing plate, the structure is simple, the volume is compact, and the driving is convenient. At the same time, it ensures the uniform growth of new bone in the section.
本发明的适用于狭小空间的牵张成骨器，包括牵张板、单自由度轴向滑动配合于牵张板的固位杆和用于控制固位杆轴向运动的驱动限位组件。The distraction osteogenesis device suitable for narrow spaces of the present invention includes a distraction plate, a single-degree-of-freedom axially slidable retention rod fitted on the distraction plate, and a driving and limiting assembly for controlling the axial movement of the retention rod.
进一步，所述固位杆的前端为尖头螺钉结构。Further, the front end of the retaining rod is a pointed screw structure.
进一步，所述牵张板上设置有用于对固位杆周向限位的过孔，所述固位杆后段与所述过孔适形滑动配合并且侧壁设置有外螺纹，所述驱动限位组件包括设有内螺纹的驱动套筒和用于将驱动套筒沿轴向固定的固定座，所述固定座与牵张板固定连接。Further, the stretching plate is provided with a through hole for limiting the circumferential position of the retaining rod, the rear section of the retaining rod is in conformal sliding fit with the through hole and the side wall is provided with an external thread, and the driving The limit assembly includes a drive sleeve provided with an internal thread and a fixed base for fixing the drive sleeve in the axial direction, and the fixed base is fixedly connected with the stretch plate.
进一步，所述驱动套筒前端外壁沿径向向外延伸形成用于轴向限位的限位部，所述固定座为圆柱筒并且圆柱筒内以可拆卸的方式固定设置有卡环。Further, the outer wall of the front end of the driving sleeve extends radially outward to form a limiting portion for axial limiting, the fixing seat is a cylinder and a snap ring is detachably fixed in the cylinder.
进一步，所述固定座、驱动套筒和驱动杆三者同轴设置，固定座外套于驱动套筒并与牵张板一体成型。Further, the fixing base, the driving sleeve and the driving rod are arranged coaxially, and the fixing base is overlaid on the driving sleeve and integrally formed with the stretching plate.
进一步，所述过孔为腰形孔。Further, the via holes are waist-shaped holes.
进一步，所述驱动套筒后端面沿轴向向内凹陷形成用于方便驱动套筒驱动的接口槽。Further, the rear end surface of the drive sleeve is recessed axially inward to form an interface groove for facilitating the drive of the drive sleeve.
进一步，所述尖头螺钉结构的后端固定设置有挡环，所述挡环与固位杆一体成型。Further, the rear end of the pointed screw structure is fixedly provided with a retaining ring, and the retaining ring is integrally formed with the retaining rod.
进一步，所述牵张板设置有至少两个固定孔，并且所述固定孔之间设置有牵张板塑性或折断结构。Further, the stretching plate is provided with at least two fixing holes, and a plastic or breaking structure of the stretching plate is set between the fixing holes.
进一步，所述牵张板为设置有固定孔的条形板或圆形板。Further, the stretching plate is a strip plate or a circular plate provided with fixing holes.
本发明的有益效果是：本发明公开的一种适用于狭小空间的牵张成骨器，通过将固位杆的前端与内侧骨直接作用，而固位杆的后段以可被固定的方式相对牵张板沿轴向单自由度滑动设置，并利用驱动限位组件对固位杆进行驱动并固定，减少了固定板的数量，适用于狭小手术空间，同时固位杆的作用力直接作用于支撑骨可以垂直牵张或顶起骨甚至骨膜等组织。The beneficial effects of the present invention are: the distraction osteogenesis device disclosed by the present invention is suitable for narrow spaces, by directly acting on the front end of the retaining rod with the inner bone, the rear section of the retaining rod can be fixed Relative to the distraction plate, it is slidably set in a single degree of freedom in the axial direction, and the driving and limiting component is used to drive and fix the retention rod, which reduces the number of fixing plates and is suitable for narrow surgical spaces. At the same time, the force of the retention rod acts directly on the support Bone can vertically distract or jack up tissues such as bone and even periosteum.
附图说明Description of drawings
下面结合附图和实施例对本发明作进一步描述：The present invention will be further described below in conjunction with accompanying drawing and embodiment:
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为本发明中牵张板的结构示意图；Fig. 2 is the structural representation of stretching plate among the present invention;
图3为本发明中固位杆的结构示意图；Fig. 3 is the structural representation of retention rod among the present invention;
图4为本发明中驱动套筒的结构示意图；Fig. 4 is the structural representation of drive sleeve in the present invention;
图5为本发明中另一牵张板的结构示意图；Fig. 5 is the structural representation of another stretching plate among the present invention;
图6为本发明中防松筒结构示意图。Fig. 6 is a schematic diagram of the structure of the anti-loosening cylinder in the present invention.
具体实施方式detailed description
图1为本发明的结构示意图，图2为本发明中牵张板的结构示意图，图3为本发明中固位杆的结构示意图，图4为本发明中驱动套筒的结构示意图，图5为本发明中另一牵张板的结构示意图，图6为本发明中防松筒结构示意图，如图所示，本实施例中的适用于狭小空间的牵张成骨器，包括牵张板1、单自由度轴向滑动配合于牵张板1的固位杆2和用于控制固位杆2轴向运动的驱动限位组件，所述固位杆2的前端与被牵张的内侧骨直接作用；安装牵张成骨器时，利用钻机在外侧骨开一个通孔，将固位杆2穿过通孔并横跨骨断面使固位杆2的前端与内侧骨固定连接，所述牵张板1设置有固定孔3，用螺钉将牵张板1固定于外侧骨并与固位杆2形成单自由度轴向滑动配合，最后安装驱动限位组件使固位杆2以可被驱动后再固定的方式相对牵张板1沿轴向自由度滑动；轴向表示固位杆2的轴向，向前表示外侧骨指向内侧骨的方向；通过将固位杆2的前端与内侧骨直接作用，而固位杆2的后段以可被固定的方式相对牵张板1沿轴向单自由度滑动设置，并利用驱动限位组件对固位杆2进行驱动并固定，减少了固定钢板的数量，适用于狭小手术空间；同时固位杆的作用力直接作用于支撑骨可以垂直牵张或顶起骨甚至骨膜等组织。Fig. 1 is a schematic structural view of the present invention, Fig. 2 is a structural schematic view of a stretching plate in the present invention, Fig. 3 is a structural schematic view of a retaining rod in the present invention, Fig. 4 is a structural schematic view of a drive sleeve in the present invention, Fig. 5 It is a structural schematic diagram of another distraction plate in the present invention, and Fig. 6 is a structural schematic diagram of the anti-loosening cylinder in the present invention. As shown in the figure, the distraction bone generator suitable for narrow spaces in this embodiment includes a distraction plate 1. A single-degree-of-freedom axial sliding fits the retention rod 2 of the stretching plate 1 and the driving limit assembly for controlling the axial movement of the retention rod 2. The front end of the retention rod 2 is connected to the stretched inner side When installing the distraction osteogenesis device, use a drill to open a through hole in the outer bone, pass the retaining rod 2 through the through hole and cross the bone section so that the front end of the retaining rod 2 is fixedly connected with the inner bone. The stretching plate 1 is provided with a fixing hole 3, and the stretching plate 1 is fixed on the outer bone with screws and forms a single-degree-of-freedom axial sliding fit with the retaining rod 2. Finally, the driving limit assembly is installed so that the retaining rod 2 can After being driven and then fixed, it slides relative to the stretcher plate 1 along the axial degree of freedom; the axial direction indicates the axial direction of the retention rod 2, and the forward direction indicates the direction in which the outer bone points to the inner bone; by aligning the front end of the retention rod 2 with the The medial bone acts directly, and the rear section of the retention rod 2 is fixedly slid relative to the distraction plate 1 along the axial single degree of freedom, and the driving limit assembly is used to drive and fix the retention rod 2, reducing The number of fixed steel plates is reduced, and it is suitable for narrow operation space; at the same time, the force of the retaining rod acts directly on the supporting bone, which can vertically stretch or lift up the bone or even the periosteum and other tissues.
本实施例中，所述固位杆2的前端为尖头或平头螺钉结构4；所述尖头螺钉结构4的螺纹槽可设置较深，利于轴向限位固定；通过尖头螺钉结构4，使得固位杆2的前端可快速、方便和稳定的固定于内侧骨，保证被牵张骨整体沿牵张方向运动，并且结构紧凑，利于狭小空间的操作，装拆方便。In this embodiment, the front end of the retaining rod 2 is a pointed or flat head screw structure 4; the thread groove of the pointed screw structure 4 can be set deeper, which is beneficial to the axial limit and fixation; through the pointed screw structure 4 , so that the front end of the retaining rod 2 can be quickly, conveniently and stably fixed to the medial bone, ensuring that the distracted bone moves along the stretching direction as a whole, and the structure is compact, which is beneficial to the operation in a narrow space and is easy to assemble and disassemble.
本实施例中，所述固位杆2设置于牵张板1的中心位置并与牵张板1垂直；固位杆2设置于牵张板1的中心位置并与牵张板1垂直有利于整个装置的受力平衡并且固定牢固，避免牵张板产生额外矩扭影响牢固性。In this embodiment, the retaining rod 2 is arranged at the center of the stretch board 1 and is perpendicular to the stretch board 1; the retaining rod 2 is arranged at the center of the stretch board 1 and is perpendicular to the stretch board 1, which is beneficial The force of the whole device is balanced and firmly fixed, so as to avoid the additional torque generated by the stretching plate and affect the firmness.
本实施例中，所述牵张板上设置有用于对固位杆周向限位的过孔，所述固位杆后段与所述过孔适形滑动配合并且侧壁设置有外螺纹6，所述驱动限位组件包括设有内螺纹7的驱动套筒和用于将驱动套筒沿轴向固定的固定座，所述固定座与牵张板固定连接8；所述牵张板1上设置有用于将驱动套筒8沿轴向固定的固定座9；通过固定座9对固位杆2轴向固定，保证旋转驱动套筒8时不后退；利用所述过孔5对固位杆2圆周方向进行固定，结构简单紧凑，所述过孔5可以为矩形孔、三角形孔或腰形孔等，而驱动套筒8与固位杆2螺纹配合并通过旋转驱动套筒8驱动固位杆2轴向运动，保证具有较大的驱动力且驱动稳定，固位杆2运动精度可控，保证牵张量的精确控制。In this embodiment, the stretch plate is provided with a through hole for limiting the circumferential position of the retaining rod, the rear section of the retaining rod fits in a conformal sliding manner with the through hole and the side wall is provided with an external thread 6 , the drive limit assembly includes a drive sleeve provided with an internal thread 7 and a fixed seat for axially fixing the drive sleeve, the fixed seat is fixedly connected with the stretch plate 8; the stretch plate 1 A fixing seat 9 for axially fixing the drive sleeve 8 is arranged on the top; the fixing seat 9 fixes the retaining rod 2 in the axial direction to ensure that the driving sleeve 8 does not retreat when the driving sleeve 8 is rotated; The rod 2 is fixed in the circumferential direction, and the structure is simple and compact. The through hole 5 can be a rectangular hole, a triangular hole or a waist-shaped hole, etc., and the drive sleeve 8 is threadedly matched with the retention rod 2 and driven by rotating the drive sleeve 8. The axial movement of the positioning rod 2 ensures a large driving force and stable driving, and the movement precision of the positioning rod 2 is controllable to ensure precise control of the stretching amount.
本实施例中，所述驱动套筒8前端外壁沿径向向外延伸形成用于轴向限位的限位部10，所述固定座为圆柱筒并且圆柱筒内以可拆卸的方式固定设置有卡环；所述卡环11外壁过盈嵌入固定座9，所述限位部10为限位环，所述限位环的前端抵压于牵张板1，后端与固定安装于固定座9内的卡环11转动配合，当然，也可在固定座9上端(与牵张板1的连接端为下端)螺纹配合设置防松筒9a，防松筒9a的上端一体设置有用于轴向压紧卡环11的紧固环9b，避免卡环11轴向运动；通过上述结构对驱动套筒8轴向限位，装拆方便，结构稳定。In this embodiment, the outer wall of the front end of the drive sleeve 8 extends radially outwards to form a limiting portion 10 for axial limiting, and the fixing seat is a cylindrical tube, and the inside of the cylindrical tube is fixed in a detachable manner. There is a snap ring; the outer wall of the snap ring 11 is embedded in the fixed seat 9 with interference, the limiting part 10 is a limiting ring, the front end of the limiting ring presses against the stretching plate 1, and the rear end is fixedly mounted on the The snap ring 11 in the seat 9 rotates and cooperates. Of course, the anti-loosening cylinder 9a can also be screwed on the upper end of the fixed seat 9 (the connection end with the stretching plate 1 is the lower end). The upper end of the anti-loosening cylinder 9a is integrally provided with a shaft Press the fastening ring 9b of the snap ring 11 to avoid the axial movement of the snap ring 11; through the above-mentioned structure, the drive sleeve 8 is axially limited, which is convenient for assembly and disassembly, and has a stable structure.
本实施例中，所述固定座9、驱动套筒8和固位杆2三者同轴设置，固定座9外套于驱动套筒8并与牵张板1一体成型；三者同轴设置利于保证固位杆2运动方向稳定，整体结构紧凑，驱动顺畅，固定座9与牵张板1一体成型设置利于连接稳定，避免固定座9受力过大而脱落，保证结构强度大。In this embodiment, the fixed seat 9, the drive sleeve 8 and the retaining rod 2 are arranged coaxially, and the fixed seat 9 is overlaid on the drive sleeve 8 and integrally formed with the stretching plate 1; the coaxial arrangement of the three facilitates Ensure that the movement direction of the retaining rod 2 is stable, the overall structure is compact, and the drive is smooth. The integral formation of the fixed seat 9 and the stretching plate 1 is conducive to stable connection, avoiding the excessive force of the fixed seat 9 and falling off, and ensuring high structural strength.
本实施例中，所述过孔5为腰形孔；通过将过孔5设置成腰形孔，固位杆2后段的断面也为腰形，制作方便，在保证固位杆2与驱动套筒8具有较多的啮合面积时，腰形孔的两个侧平面对固位杆2沿圆周方向的卡止精确和稳定，避免松动。In this embodiment, the via hole 5 is a waist-shaped hole; by setting the via hole 5 as a waist-shaped hole, the cross section of the rear section of the retaining rod 2 is also waist-shaped, which is convenient to manufacture, and ensures that the retaining rod 2 and the drive When the sleeve 8 has more engagement areas, the two side planes of the waist-shaped hole are precisely and stably locked to the retaining rod 2 in the circumferential direction, preventing loosening.
本实施例中，所述驱动套筒后端面沿轴向向内凹陷形成用于方便驱动套筒驱动的接口槽12；所述接口槽12径向对称设置为两个，方便外部驱动件嵌入驱动套筒8旋转，结构简单，加工方便。In this embodiment, the rear end surface of the drive sleeve is recessed inward along the axial direction to form an interface groove 12 for facilitating the driving of the drive sleeve; the interface grooves 12 are radially symmetrically arranged in two, which facilitates the insertion and driving of the external drive element Sleeve 8 is rotated, and structure is simple, and processing is convenient.
本实施例中，所述尖头螺钉结构4的后端固定设置有挡环13，所述挡环13与固位杆2一体成型；通过挡环13的设置，固位杆2在安装时，挡环13抵压于内侧骨，使得固位杆2的作用于主要通过挡环13对内侧骨施加，避免固位杆2与内侧骨的连接处不易破碎，保证固定牢固、稳定。In this embodiment, the rear end of the pointed screw structure 4 is fixedly provided with a retaining ring 13, and the retaining ring 13 is integrally formed with the retaining rod 2; through the setting of the retaining ring 13, when the retaining rod 2 is installed, The retaining ring 13 presses against the inner bone, so that the action of the retaining rod 2 is mainly exerted on the inner bone through the retaining ring 13, so as to prevent the connection between the retaining rod 2 and the inner bone from being easily broken, and ensure firm and stable fixation.
本实施例中，所述牵张板设置有至少两个固定孔3，并且所述固定孔之间设置有牵张板塑性或折断结构；所述牵张板为条形板，固定孔的个数为六个且沿条形板均匀设置，所述牵张板塑性或折断结构为牵张板边缘向内凹陷形成凹槽，凹槽沿条形板横向对称设置，所述凹槽用于减小牵张板上固定孔之间的强度，狭小空间使用时，易于可选择性的去除固定孔以减小牵张板的体积；并且凹槽利于安装板形变以贴合骨固定。In this embodiment, the stretching plate is provided with at least two fixing holes 3, and a stretching plate plastic or breaking structure is arranged between the fixing holes; the stretching plate is a strip-shaped plate, and each of the fixing holes The number is six and arranged evenly along the strip plate. The plastic or fracture structure of the stretch plate is that the edge of the stretch plate is inwardly recessed to form a groove, and the groove is arranged symmetrically along the transverse direction of the strip plate. The strength between the fixing holes on the small distraction plate, when used in a narrow space, it is easy to selectively remove the fixing holes to reduce the volume of the distraction plate; and the groove facilitates the deformation of the mounting plate to fit the bone for fixation.
本实施例中，所述牵张板1为设置有固定孔3的条形板或圆形板；所述固定孔3为多个，通过将牵张板1设置为条形板，适用于骨与骨之间的牵张成骨，而将牵张板1设置成圆形板，适用于骨与骨膜之间的牵张成骨，所述牵张板1为钢板或钛板。In this embodiment, the stretching plate 1 is a strip plate or a circular plate provided with fixing holes 3; there are multiple fixing holes 3, and by setting the stretching plate 1 as a strip plate, it is suitable for bone The distraction osteogenesis between the bone and the bone, and the distraction plate 1 is set as a circular plate, which is suitable for the distraction osteogenesis between the bone and the periosteum, and the distraction plate 1 is a steel plate or a titanium plate.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.
Claims (10)
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| CN201510745134.0A CN105286968B (en) | 2015-11-05 | 2015-11-05 | Distraction osteogenesis device for confined spaces |
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| CN201510745134.0A CN105286968B (en) | 2015-11-05 | 2015-11-05 | Distraction osteogenesis device for confined spaces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320139A (en) * | 2017-08-04 | 2017-11-07 | 重庆医科大学 | Laparoscope single hole multi-path Rotating-manipulatiodevice device |
| CN113081207A (en) * | 2021-03-31 | 2021-07-09 | 大博医疗科技股份有限公司 | Precise telescopic adjustable periosteum stretching system and use method thereof |
| CN119700329A (en) * | 2025-02-24 | 2025-03-28 | 浙江科惠医疗器械股份有限公司 | Periosteum stretching device for skull |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501266A (en) * | 1983-03-04 | 1985-02-26 | Biomet, Inc. | Knee distraction device |
| CN2512392Y (en) * | 2001-12-26 | 2002-09-25 | 李谆 | Quick traction reset fixer for zygomatic bone, and fracture of zygomatic arch micro wound |
| CH692898A5 (en) * | 1998-05-13 | 2002-12-13 | Straumann Inst Ag | Distraction device enables bone fragment removed from bone tobe successively and incrementally distanced from main bone in order to initiate bone growth bridging over gap thus formed |
| US20060058785A1 (en) * | 2002-03-22 | 2006-03-16 | Ernst Fuchs | Distraction device used for osteogenesis |
| DE102010015687A1 (en) * | 2010-04-21 | 2011-10-27 | Ernst Fuchs | Distraction device for distraction osteogenesis of patient, has guide rail directly connected with magnets e.g. permanent magnets, by drive mechanism, where forces for moving guide rails are transferred against each other by magnets |
| US20120323286A1 (en) * | 2011-06-17 | 2012-12-20 | Christian Krenkel | Device for the distraction of a bone segment |
| WO2014086910A1 (en) * | 2012-12-05 | 2014-06-12 | Celgen Ag | Implant for bone distraction |
-
2015
- 2015-11-05 CN CN201510745134.0A patent/CN105286968B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501266A (en) * | 1983-03-04 | 1985-02-26 | Biomet, Inc. | Knee distraction device |
| CH692898A5 (en) * | 1998-05-13 | 2002-12-13 | Straumann Inst Ag | Distraction device enables bone fragment removed from bone tobe successively and incrementally distanced from main bone in order to initiate bone growth bridging over gap thus formed |
| CN2512392Y (en) * | 2001-12-26 | 2002-09-25 | 李谆 | Quick traction reset fixer for zygomatic bone, and fracture of zygomatic arch micro wound |
| US20060058785A1 (en) * | 2002-03-22 | 2006-03-16 | Ernst Fuchs | Distraction device used for osteogenesis |
| DE102010015687A1 (en) * | 2010-04-21 | 2011-10-27 | Ernst Fuchs | Distraction device for distraction osteogenesis of patient, has guide rail directly connected with magnets e.g. permanent magnets, by drive mechanism, where forces for moving guide rails are transferred against each other by magnets |
| US20120323286A1 (en) * | 2011-06-17 | 2012-12-20 | Christian Krenkel | Device for the distraction of a bone segment |
| WO2014086910A1 (en) * | 2012-12-05 | 2014-06-12 | Celgen Ag | Implant for bone distraction |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320139A (en) * | 2017-08-04 | 2017-11-07 | 重庆医科大学 | Laparoscope single hole multi-path Rotating-manipulatiodevice device |
| CN107320139B (en) * | 2017-08-04 | 2023-06-09 | 重庆医科大学 | Laparoscopic single-hole multi-channel rotatable operating device |
| CN113081207A (en) * | 2021-03-31 | 2021-07-09 | 大博医疗科技股份有限公司 | Precise telescopic adjustable periosteum stretching system and use method thereof |
| CN119700329A (en) * | 2025-02-24 | 2025-03-28 | 浙江科惠医疗器械股份有限公司 | Periosteum stretching device for skull |
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