CN110215268A - Steel plate screw system for osteotomy of calcaneus art - Google Patents
Steel plate screw system for osteotomy of calcaneus art Download PDFInfo
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- CN110215268A CN110215268A CN201910642348.3A CN201910642348A CN110215268A CN 110215268 A CN110215268 A CN 110215268A CN 201910642348 A CN201910642348 A CN 201910642348A CN 110215268 A CN110215268 A CN 110215268A
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- 210000000459 calcaneus Anatomy 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 title claims description 21
- 239000010959 steel Substances 0.000 title claims description 21
- 230000007423 decrease Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000007943 implant Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 206010016970 Foot fracture Diseases 0.000 description 1
- 208000034819 Mobility Limitation Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000003466 welding 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8095—Wedge osteotomy devices
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/862—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the periphery of the screw head
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone
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Abstract
本申请公开了一种用于跟骨截骨术的钢板螺钉系统，包括钢板，所述钢板呈L型结构，包括外壁相互垂直设置的第一侧板和第二侧板，所述第一侧板和第二侧板内分别加工有固定孔，所述固定孔分别垂直于对应所述第一侧板和第二侧板的内壁，所述第一侧板内的所述固定孔的个数为一个，所述第二侧板内的所述固定孔的个数为两个，所述固定孔内设置有可拆装的螺钉。该用于跟骨截骨术的钢板螺钉系统是专门用于跟骨截骨的内固定植入物，结构简单，符合解剖曲线，提高手术效果。
The present application discloses a plate and screw system for calcaneus osteotomy, which includes a plate, the plate has an L-shaped structure, and includes a first side plate and a second side plate whose outer walls are perpendicular to each other, the first side Fixing holes are respectively processed in the plate and the second side plate, and the fixing holes are respectively perpendicular to the inner walls corresponding to the first side plate and the second side plate, and the number of the fixing holes in the first side plate There is one, and the number of the fixing holes in the second side plate is two, and detachable screws are arranged in the fixing holes. The plate and screw system for calcaneal osteotomy is an internal fixation implant specially used for calcaneal osteotomy, has a simple structure, conforms to the anatomical curve, and improves the operation effect.
Description
技术领域technical field
本申请涉及急救及康复的新型装置与技术，特别涉及一种用于跟骨截骨术的钢板螺钉系统。The present application relates to novel devices and technologies for first aid and rehabilitation, in particular to a plate and screw system for calcaneal osteotomy.
背景技术Background technique
由于跟骨骨折后畸形愈合造成的跟骨畸形，病患足踝力线不良，行走困难、疼痛等问题的治疗，通常采用跟骨截骨的方式进行，通过恢复跟骨的解剖角度达到治疗的目的。目前市场上没有专门用于跟骨截骨的内固定植入物，通常采用跟骨解剖锁定钢板来进行，术中存在内植入物不符合解剖曲线，容易引起术后跟骨力线、角度的丢失，从而影响手术的预期效果。另外锁定内植入物常常会发生螺钉与钢板的连接冷焊接，造成内植入物取出困难，给患者和医生带来很多困扰。Calcaneal deformity caused by malunion after calcaneus fracture, poor foot and ankle alignment, difficulty walking, pain and other problems are usually treated by calcaneus osteotomy, and the anatomical angle of the calcaneus is restored to achieve the goal of treatment. Purpose. At present, there is no internal fixation implant specially used for calcaneal osteotomy on the market, and the calcaneal anatomical locking plate is usually used for it. During the operation, the internal implant does not conform to the anatomical curve, which may easily cause postoperative calcaneal force line and angle deviation. Lost, thereby affecting the expected effect of the operation. In addition, locking the internal implant often leads to cold welding of the connection between the screw and the steel plate, which makes it difficult to take out the internal implant and brings a lot of trouble to patients and doctors.
发明内容Contents of the invention
本发明的目的在于提供一种用于跟骨截骨术的钢板螺钉系统，以克服现有技术中的不足。The object of the present invention is to provide a plate and screw system for calcaneal osteotomy to overcome the deficiencies in the prior art.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
本申请实施例公开了一种用于跟骨截骨术的钢板螺钉系统，包括钢板，所述钢板呈L型结构，包括外壁相互垂直设置的第一侧板和第二侧板，所述第一侧板和第二侧板内分别加工有固定孔，所述固定孔分别垂直于对应所述第一侧板和第二侧板的内壁，所述第一侧板内的所述固定孔的个数为一个，所述第二侧板内的所述固定孔的个数为两个，所述固定孔内设置有可拆装的螺钉。The embodiment of the present application discloses a plate and screw system for calcaneal osteotomy, which includes a steel plate, the steel plate has an L-shaped structure, and includes a first side plate and a second side plate whose outer walls are perpendicular to each other. The first side plate One side plate and the second side plate are respectively processed with fixing holes, and the fixing holes are respectively perpendicular to the inner walls corresponding to the first side plate and the second side plate, and the fixing holes in the first side plate The number is one, and the number of the fixing holes in the second side plate is two, and detachable screws are arranged in the fixing holes.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，所述螺钉包括依次连接的头部、光杆和螺杆。Preferably, in the above-mentioned plate screw system for calcaneal osteotomy, the screw includes a head, a polished rod and a screw rod connected in sequence.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，所述固定孔为莫氏锥度孔，所述固定孔的直径沿对应所述第一侧板或第二侧板由内向外的方向逐渐减小，所述头部为与所述固定孔对应设置的莫氏锥度结构。Preferably, in the above-mentioned plate screw system for calcaneal osteotomy, the fixation hole is a Morse taper hole, and the diameter of the fixation hole is from the inside to the corresponding side plate or the second side plate. The outer direction gradually decreases, and the head is a Morse taper structure corresponding to the fixing hole.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，所述固定孔位于所述第一侧板或第二侧板内壁的一段加工有倒角，所述倒角为球面结构，所述头部背离杆部的一端凸伸有与所述倒角对应设置的限位凸台。Preferably, in the above-mentioned plate screw system for calcaneal osteotomy, a section of the inner wall of the first side plate or the second side plate where the fixing hole is located is processed with a chamfer, and the chamfer is a spherical structure , the end of the head away from the rod protrudes from a limiting boss corresponding to the chamfer.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，所述头部靠近所述杆部的一端加工有坡面，所述坡面的角度大于所述头部的锥度。Preferably, in the above-mentioned plate screw system for calcaneal osteotomy, the end of the head close to the rod is processed with a slope, and the angle of the slope is larger than the taper of the head.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，所述螺杆背离所述光杆的一端加工有三个自攻自钻口。Preferably, in the above-mentioned plate screw system for calcaneal osteotomy, the end of the screw rod away from the polished rod is processed with three self-tapping and self-drilling openings.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，所述第一侧板和第二侧板内分别加工有固定孔两个导针孔。Preferably, in the above-mentioned plate and screw system for calcaneal osteotomy, two guide pin holes for fixing holes are respectively processed in the first side plate and the second side plate.
优选的，在上述的用于跟骨截骨术的钢板螺钉系统中，第一侧板背离所述第二侧板的一端为锥形结构。Preferably, in the aforementioned plate and screw system for calcaneal osteotomy, the end of the first side plate away from the second side plate has a tapered structure.
与现有技术相比，本发明的优点在于：本发明所述用于跟骨截骨术的钢板螺钉系统是专门用于跟骨截骨的内固定植入物，结构简单，符合解剖曲线，提高手术效果，钢板上设置有导针孔，用于钢板的临时固定，钢板与螺钉莫氏锥度联接后获得的静扭矩可以使钢板和螺钉牢固的成为一个整体。Compared with the prior art, the present invention has the advantages that: the plate and screw system for calcaneal osteotomy described in the present invention is an internal fixation implant specially used for calcaneal osteotomy, and has a simple structure and conforms to anatomical curves. To improve the operation effect, the steel plate is provided with a guide pin hole for temporary fixation of the steel plate, and the static torque obtained after the Morse taper connection of the steel plate and the screw can make the steel plate and the screw firmly become a whole.
附图说明Description of drawings
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in this application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1所示为本发明具体实施例中用于跟骨截骨术的钢板螺钉系统的结构示意图。Fig. 1 is a schematic structural diagram of a plate and screw system used for calcaneal osteotomy in a specific embodiment of the present invention.
图2所示为本发明具体实施例中钢板的结构示意图。Fig. 2 is a schematic structural diagram of a steel plate in a specific embodiment of the present invention.
图3所示为图2中A-A处的剖面示意图。FIG. 3 is a schematic cross-sectional view at A-A in FIG. 2 .
图4所示为本发明具体实施例中螺钉的结构示意图。Fig. 4 is a schematic structural diagram of a screw in a specific embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行详细的描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
参图1至图4所示，本实施例中的用于跟骨截骨术的钢板螺钉系统，包括钢板1，钢板1呈L型结构，包括外壁相互垂直设置的第一侧板11和第二侧板12，第一侧板11和第二侧板12内分别加工有固定孔13，固定孔13分别垂直于对应第一侧板11和第二侧板12的内壁，第一侧板11内的固定孔13的个数为一个，第二侧板12内的固定孔13的个数为两个，固定孔13内设置有可拆装的螺钉2。Referring to Figures 1 to 4, the plate and screw system for calcaneal osteotomy in this embodiment includes a steel plate 1, which is in an L-shaped structure, and includes a first side plate 11 and a second side plate whose outer walls are perpendicular to each other. Two side plates 12, the first side plate 11 and the second side plate 12 are respectively processed with fixing holes 13, the fixing holes 13 are respectively perpendicular to the inner walls of the corresponding first side plate 11 and the second side plate 12, the first side plate 11 The number of fixing holes 13 inside is one, and the number of fixing holes 13 in the second side plate 12 is two, and the fixing holes 13 are provided with detachable screws 2 .
该技术方案中，钢板由诸如用于外科手术的已知类型的钛合金或不锈钢的生物可兼容材料形成，第二侧板的高度可以根据不同高度跟骨截骨矫形的需求设置多种规格，第二侧板的内壁与第一侧板的内壁呈120°夹角设置，方便对应固定孔的加工，钢板的各棱边倒钝，钢板呈L型结构，外形尺寸较小，方便微创植入，同时也降低了切迹，减小对跟骨皮肤、软组织的刺激。In this technical solution, the steel plate is formed of a biocompatible material such as a known type of titanium alloy or stainless steel used in surgery, and the height of the second side plate can be set in various specifications according to the needs of different heights of calcaneal osteotomy orthopedics. The inner wall of the second side plate and the inner wall of the first side plate are set at an angle of 120°, which facilitates the processing of the corresponding fixing holes. The edges of the steel plate are blunt, and the steel plate has an L-shaped structure. At the same time, the notch is reduced, reducing the stimulation to the skin and soft tissues of the calcaneus.
进一步地，螺钉2包括依次设置的头部21、光杆22和螺杆23。Further, the screw 2 includes a head 21 , a polished rod 22 and a screw rod 23 arranged in sequence.
该技术方案中，螺钉采取半螺纹设计，可以使螺钉获得充分的加压力，提高手术效率。In this technical solution, the screw adopts a half-thread design, which can enable the screw to obtain sufficient pressure and improve operation efficiency.
进一步地，固定孔13为莫氏锥度孔，固定孔13的直径沿对应第一侧板11或第二侧板12由内向外的方向逐渐减小，头部21为与固定孔13对应设置的莫氏锥度结构。Further, the fixing hole 13 is a Morse taper hole, the diameter of the fixing hole 13 gradually decreases along the direction from the inside to the outside of the corresponding first side plate 11 or the second side plate 12, and the head 21 is set corresponding to the fixing hole 13 Morse taper structure.
该技术方案中，莫氏锥度用于静配合以精确定位。由于锥度很小，利用摩擦力的原理，获得较大的静扭矩，可以使钢板和螺钉牢固的成为一个整体，提高术后系统的稳定性，又因为是锥度配合，所以可以方便的拆卸。In this technical solution, the Morse taper is used for static fit for precise positioning. Because the taper is small, the principle of friction is used to obtain a large static torque, which can make the steel plate and the screw firmly integrated, improve the stability of the postoperative system, and because of the taper fit, it can be easily disassembled.
进一步地，固定孔13位于第一侧板11或第二侧板12内壁的一段加工有倒角131，倒角131为球面结构，头部21背离光杆的一端凸伸有与倒角131对应设置的限位凸台211。Furthermore, a section of the fixing hole 13 located on the inner wall of the first side plate 11 or the second side plate 12 is processed with a chamfer 131, the chamfer 131 is a spherical structure, and the end of the head 21 away from the polished rod protrudes correspondingly to the chamfer 131. The limiting boss 211.
该技术方案中，球面倒角与螺钉头部的限位凸台配合，起到限位作用，防止螺钉穿出钢板。In this technical solution, the spherical chamfer cooperates with the limiting boss on the head of the screw to play a limiting role and prevent the screw from passing through the steel plate.
进一步地，头部21靠近杆部的一端加工有与螺钉轴线呈30°角的坡面212。Further, the end of the head 21 close to the rod is processed with a slope 212 at an angle of 30° to the screw axis.
该技术方案中，头部尾端的坡面在螺钉旋入时可以对跟骨骨块提供最大的加压力。In this technical solution, the slope surface at the tail end of the head can provide the maximum pressure on the calcaneus bone block when the screw is screwed in.
进一步地，螺杆23背离光杆22的一端加工有三个自攻自钻口231。Further, the end of the screw 23 away from the polished rod 22 is processed with three self-tapping self-drilling holes 231 .
上述技术方案中，方便手术中的操作，提高手术效率，减少手术时间。In the above technical scheme, the operation in the operation is facilitated, the operation efficiency is improved, and the operation time is reduced.
进一步地，第一侧板11和第二侧板12内分别加工有固定孔1313两个导针孔14。Further, the first side plate 11 and the second side plate 12 are respectively processed with a fixing hole 1313 and two guide pin holes 14 .
该技术方案中，导针孔与克氏针等配合，用于钢板的临时固定。In this technical solution, the guide pin holes cooperate with Kirschner wires and the like to temporarily fix the steel plate.
进一步地，第一侧板11背离第二侧板12的一端为锥形结构。Further, the end of the first side plate 11 facing away from the second side plate 12 has a tapered structure.
该技术方案中，第一侧板的末端设计成锥形结构，通过较小内植入物的外形尺寸，方便内植入物微创植入，同时也降低了切迹，减小对跟骨皮肤、软组织的刺激。In this technical solution, the end of the first side plate is designed into a tapered structure, which facilitates the minimally invasive implantation of the inner implant through the smaller size of the inner implant, and also reduces the notch and reduces the impact on the calcaneus. Skin, soft tissue irritation.
综上所述，本发明所述用于跟骨截骨术的钢板螺钉系统是专门用于跟骨截骨的内固定植入物，结构简单，符合解剖曲线，提高手术效果，钢板上设置有导针孔，用于钢板的临时固定，钢板与螺钉莫氏锥度联接后获得的静扭矩可以使钢板和螺钉牢固的成为一个整体。In summary, the plate and screw system for calcaneal osteotomy described in the present invention is an internal fixation implant specially used for calcaneal osteotomy. It has a simple structure, conforms to the anatomical curve, and improves the operation effect. The guide pin hole is used for temporary fixation of the steel plate, and the static torque obtained after the Morse taper connection of the steel plate and the screw can make the steel plate and the screw firmly become a whole.
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。The above is only the specific implementation of the application, and it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the application, some improvements and modifications can also be made, and these improvements and modifications are also It should be regarded as the protection scope of this application.
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| CN201910642348.3A CN110215268A (en) | 2019-07-16 | 2019-07-16 | Steel plate screw system for osteotomy of calcaneus art |
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Application publication date: 20190910 |