CN104586496A - Microporous bionic fracture fixing device capable of promoting fracture healing - Google Patents

Microporous bionic fracture fixing device capable of promoting fracture healing Download PDF

Info

Publication number
CN104586496A
CN104586496A CN201510065992.0A CN201510065992A CN104586496A CN 104586496 A CN104586496 A CN 104586496A CN 201510065992 A CN201510065992 A CN 201510065992A CN 104586496 A CN104586496 A CN 104586496A
Authority
CN
China
Prior art keywords
fracture
fixation
tension
nail
hole
Prior art date
Application number
CN201510065992.0A
Other languages
Chinese (zh)
Inventor
陈伟
杜晨光
刘勃
张弢
张英泽
Original Assignee
张英泽
陈伟
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张英泽, 陈伟 filed Critical 张英泽
Priority to CN201510065992.0A priority Critical patent/CN104586496A/en
Publication of CN104586496A publication Critical patent/CN104586496A/en
Priority claimed from US15/106,563 external-priority patent/US10363075B2/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1664Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
    • A61B17/1668Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8625Shanks, i.e. parts contacting bone tissue
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B2017/8655Threaded wires, pins or screws; Nuts therefor with special features for locking in the bone

Abstract

The invention relates to a microporous bionic fracture fixing device capable of promoting fracture healing, which belongs to the technical field of medical equipment in department of orthopaedics, and is used for realizing a better fracture restoration fixing effect. Tension holes and micropores which are densely distributed are respectively formed in inner fixing nails connected to two sides of a fracture part, the axial direction of each tension hole is consistent with the direction of a tension bone trabecula, the micropores are densely arranged among the tension holes, the diameter of each tension hole is 0.1mm to 3mm, and the aperture of each micropore is 1 to 50 micrometers. By adopting the structure, the bone trabecula is allowed to grow into the tension holes and micropores in the inner fixing nails, simultaneous growth of the pulp inner and outside callus can be realized, the fracture healing time can be shortened, and various complications of fracture and operation can be reduced. By utilizing a bionic inner fixing theory, a bionic fixing article which can better conform to the skeleton dissection structure and particularly conforms to the characteristics of biomechanics structure is adopted, so that the fracture restoration follows respective transfer and load characteristics, and a satisfactory restoration and healing effect for the fracture treatment can be achieved.

Description

一种促进骨折愈合的微孔仿生骨折固定装置 A microporous bionic fracture fixation device to promote fracture healing

技术领域 FIELD

[0001] 本发明涉及一种骨折治疗的固定装置,属于骨科医疗器械技术领域。 [0001] The present invention relates to a device for fixation of fractures, orthopedic medical technical field belonging to the instrument.

背景技术 Background technique

[0002] 在骨折治疗中,如何根据骨骼结构进行复位和固定是非常重要的内容,这将直接影响到骨折部位的复原程度,成为手术成败的关键。 [0002] in the treatment of fractures, reduction and fixation based on how the bone structure is a very important element, which will directly affect the level of recovery of the fracture site, the key to the success of surgery. 从解剖学上看骨主要由骨质、骨膜、骨髓等构造。 Anatomically bone consists of bone, periosteum, bone marrow and other construction. 骨质分骨密质和骨松质两类,骨密质致密坚实,耐压性强,布于骨的表面。 And sub-cortical bone bone two cancellous bone, cortical bone dense solid, strong pressure, distributed in the surface of the bone. 骨松质位于骨的内部,由交织成网的骨小梁构成,结构疏松。 Cancellous bone located inside bone, the bone is composed of interwoven into the trabecular meshwork, loose structure. 骨小梁的排列方向,多数都与该骨的承受压力的方向一致。 Arrangement direction of trabecular bone, most of them coincides with the direction of the bone under pressure. 骨小梁可以分为主张力骨小梁、辅助张力骨小梁及主压力骨小梁、辅助压力骨小梁,在不同部位骨小梁走形方向不同。 Can be divided into trabecular bone trabeculae assertive, the auxiliary and main compression tension trabecular bone trabecular bone, trabecular bone assisting pressure, out of shape in a direction different from different parts of trabecular bone. 人体的骨骼受应力的影响,负荷增加骨增粗,负荷减少骨变细。 Effect stressed human bone, bone thickening load increases, the load loss of bone thinning. 骨骼在生长过程中力求达到一种最佳结构,即骨骼的形态与物质受个体活动水平的调控,使之足够承担力学负载,但并不增加代谢转运的负担。 During the growth of bone and strive to achieve an optimal structure that forms the skeleton of a substance regulated by individual activity level, so that sufficient mechanical load to bear, but it does not increase the burden on the metabolic transport. 根据上述原理,骨折再塑过程的变化规律显示,骨折后如有移位,在凹侧将有明显骨痂形成,其内部骨小梁将沿着压应力的传递方向排列,而在凸侧将有骨的吸收。 According to the above principle, the variation of fracture remodeling process is shown, if displaced fracture, the concave side will be significantly callus formation, which is arranged along the inner trabeculae transfer direction of compressive stress, while the convex side bone absorption.

[0003]目前,股骨颈骨折、粗隆间骨折、股骨远端骨折、胫骨近端骨折是临床常见损伤,在治疗中需要进行包括伽马钉(Ga_a)、空心(拉力)螺钉等固定,其主要并发症包括骨折不愈合、延迟愈合、内固定物松动、断裂。 [0003] Currently, femoral neck fractures, intertrochanteric fractures, fractures of the distal femur, proximal tibia fractures are common clinical injury, including the need for a gamma nail (Ga_a), hollow (tension) in the treatment of screws or the like, which the main complications including nonunion, delayed healing, the implant loosening, fracture. 传统骨折内固定物置入后由于内置物的容积占位效应,破坏断端骨小梁,影响两个断端的骨小梁的生长、并恢复其连续性,髓内外骨痂生长不均衡,尤其是老年人骨质疏松性骨折,可能骨皮质愈合后,骨松质愈合较差,影响骨骼愈合强度,有时候可能导致骨折延迟愈合及再骨折。 After fracture fixation into traditional mass effect since the volume of the internal components, damage trabecular bone stump, growth of the two ends of the trabecular bone, and restore its continuity, intramedullary callus growth is not balanced, in particular is osteoporotic fractures in the elderly, may healing cortical bone, cancellous bone healing poor impact strength bone healing, can sometimes cause delayed fracture healing and re-fracture.

[0004] 随着骨科内固定技术的不断发展,非常有必要设计新的固定装置,使骨折治疗在生物学及生物力学原理的指导下,使骨折的皮质与主要骨小梁同时生长重建,实现髓内外骨折同时愈合。 [0004] With the development of orthopedic fixation techniques, is necessary to design new fixtures, the fracture treatment under the guidance of the biological and biomechanical principles of the cortex and trabecular bone fractures while major growth reconstruction to achieve while outer intramedullary fracture healing. 这样会加快骨折愈合速度、提高骨折愈合质量和强度,降低骨折不愈合、延迟愈合、内固定物松动、断裂等并发症的发生率。 This will speed up the rate of fracture healing, improving the quality and strength of healing, nonunion reduced, delayed healing, the implant loosening, fracture incidence of complications.

发明内容 SUMMARY

[0005] 本发明所要解决的技术问题是提供一种促进骨折愈合的微孔仿生骨折固定装置,这种微孔仿生骨折固定装置利用了仿生内固定理论,使骨折恢复遵循骨折自身的传导和负荷特点,能够使骨折治疗达到满意的复位和愈合效果。 [0005] The present invention solves the technical problem is to provide a biomimetic microporous promote fracture healing fracture fixation means, such microporous bionic internal fracture fixation device utilizes a fixed biomimetic theory, the fracture to follow the recovery and fracture conductivity own load characteristics, is possible to achieve satisfactory reduction fractures and healing effects.

[0006] 解决上述技术问题的技术方案是: [0006] achieve the above technical solution is:

一种促进骨折愈合的微孔仿生骨折固定装置,它包括一个圆杆状的内固定钉,内固定钉的中心有通孔,内固定钉一端有内固定螺纹,另一端有锁紧结构,内固定钉的两端分别位于骨折部位两侧的骨骼内,内固定钉的杆体上有张力孔,张力孔的两端位于内固定钉的杆体两侧,张力孔穿过内固定钉的中心轴线,张力孔的轴向与张力骨小梁的方向一致,多个张力孔沿着内固定钉的轴向平行排列,张力孔的位置与骨折部位相对,在相邻张力孔之间的内固定钉的杆体上分别有密布的微孔结构,张力孔的直径为0.l_3mm,微孔的孔径为l_50umo A method of promoting healing microporous biomimetic fracture fixation device comprising a central circular rod fixation staples, the staples within a through hole, the inner end fastening nail fixing screw, and the other end has a locking structure, the both ends of the staples are positioned on both sides of the bone fracture site, tension rod hole nail fixation, the tension at both ends of the rod body on both sides of the hole within the staples, the tension within the hole through the central axis of the staples, axis coincides with the direction of tension of the tension trabecular bone hole, a plurality of tension holes are arranged axially parallel along the inner fixation pegs, the position of the hole opposite the tension fracture site, the tension between the nail fixation holes adjacent the the rod has a microporous structure are dense, pore diameter of the tension 0.l_3mm, pore size of the micropores is l_50umo

[0007] 上述促进骨折愈合的微孔仿生骨折固定装置,所述内固定钉为连接骨折的股骨颈两侧的固定钉,内固定钉有内固定螺纹的一端与骨折的股骨头相连接,内固定钉的另一端的锁紧结构连接在股骨外侧,内固定钉的张力孔的位置位于骨折的股骨颈两侧,在股骨内沿着股骨轴向有股骨固定主钉,股骨固定主钉的上部有连接孔,连接孔的直径与内固定钉的外径相匹配,股骨固定主钉的轴向与内固定钉的轴向有90-140度的夹角。 [0007] The microporous biomimetic promote healing fracture fixation means, the fixation nail to be connected on both sides of femoral neck fracture fixation nail, the nail is fixed with one end of the fracture of the femoral head fixing screw is connected to the the other end of the fixed locking structure connected to the lateral femoral nail, the position of the tension nail holes in the fixation of femoral neck fractures on both sides, in the axial direction of the femur with a femur fixation nail femur, the upper portion of the femur fixation nail a connection hole, the outer diameter of the inner diameter of the fixation nail coupling hole matches axially inner femoral fixation pegs axially fixing nail has an angle of 90-140 degrees.

[0008] 上述促进骨折愈合的微孔仿生骨折固定装置,所述内固定钉为连接骨折的股骨两侧的固定钉,内固定钉沿着股骨轴向,内固定钉的上端连接在股骨的顶端,内固定钉的下端连接在股骨骨折部分内,内固定钉的张力孔的位置位于骨折的股骨两侧。 [0008] The microporous biomimetic promote healing fracture fixation means, the fixation nail to the femur on both sides of the connection fracture fixation nail, nail fixed in the axial direction of the femur, the upper end of the femur fixation nail tip is connected , the lower end of the connecting nail fixation of femoral fractures in the portion, the position of the tension nail holes in the fixation of femoral fractures on both sides.

[0009] 上述促进骨折愈合的微孔仿生骨折固定装置,所述内固定钉位于股骨外侧的端面上有豁口,豁口与端面中心垂直,豁口的方向与张力孔的轴向一致。 [0009] with a gap above bionic microporous promote healing fracture fixation means, the fixation of the femoral nail is located outside the end face, the end face a central vertical gap, with the axial direction of the notch hole coincides tension.

[0010] 上述促进骨折愈合的微孔仿生骨折固定装置,所述内固定钉可以用于胫骨骨折的复位固定,内固定钉的有内固定螺纹的一端穿过外侧骨折的胫骨与内侧的胫骨相连接,内固定钉的另一端的锁紧结构位于外侧骨折的胫骨连接钢板的外侧,内固定钉的张力孔的位置位于骨折的胫骨部位两侧。 [0010] The microporous biomimetic promote healing fracture fixation means, the fixation nail may be used to reset the tibial fracture fixation, has a fixed end of the inner nail fixing screw passing through the tibia and tibial fractures inside the outer connection, the other end of the locking structure is located outside the fixation pegs tibial fractures outside the connecting plate, the position of the hole in the tension on both sides of the staples tibial fracture site.

[0011] 上述促进骨折愈合的微孔仿生骨折固定装置,所述内固定钉还可以用于跟骨骨折的复位固定,内固定钉的两端分别位于跟骨的两侧,内固定钉的一端有螺纹,螺纹上有锁母,内固定钉的另一端有钉帽,拧紧锁母可以将骨折跟骨固定,内固定钉的张力孔的位置位于骨折的跟骨部位两侧。 [0011] The microporous biomimetic promote healing fracture fixation means, the fixation nail may also be used to reset the fixation fractures, both ends of the internal fixation pegs on each side of the calcaneus, the inner end of the fixation pegs threaded, with a threaded locking nut on the other end with a nail fixed nut, tightening the locking position of the mother may be fixed calcaneus fractures, the nail fixation holes located on both sides of the tension fractures of the calcaneus.

[0012] 本发明的有益效果是: [0012] Advantageous effects of the present invention are:

本发明在连接骨折部位两侧的内固定钉上分别设计了张力孔和密布的微孔,张力孔的轴向与张力骨小梁方向一致,在张力孔之间有密布的微孔,张力孔的直径为0.1-3_,微孔的孔径为l-50um。 In the present invention, the fracture fixation nail connecting both sides of the holes are designed tension and dense micropores consistent tension axial direction of trabecular bone hole tension, there is tension between the dense micropores in the hole, the hole tension 0.1-3_ diameter, pore size of micropores l-50um. 这种结构可以允许骨小梁沿内固定钉上的张力孔及微孔长入,达到髓内外骨痂同时生长,缩短骨折愈合时间,减少骨折及手术的各种并发症;同时,密布的微孔结构结合数个张力孔使内固定钉的弹性模量更好,内固定强度没有得到削弱,防止出现断钉、应力性折断的情况;内固定钉端部的豁口可以方便指引手术操作人员寻找适宜的骨折断端骨小梁方向来调整进针方向。 This structure can allow the trabecular bone nail tension along a fixed aperture and porous ingrowth achieve intramedullary callus grown simultaneously, shorten the healing time, and reduce surgical complications fractures; while micro clouds pore structure binding a plurality of tension holes of the inner fixation nail better elastic modulus, the fixing strength was not impaired, to prevent broken nails, the stress of the break; cutout nail fixation end portion may conveniently guide the surgical operator to find suitable trabecular bone fracture fragments to adjust the direction of the needle direction.

[0013] 本发明利用了仿生内固定理论,采用更加符合骨骼解剖结构尤其是生物力学结构特性的仿生内固定物,使骨折恢复遵循骨折自身的传导和负荷特点,能够使骨折治疗达到满意的复位和愈合效果。 [0013] The present invention makes use of internal fixation biomimetic theory, more in line with the bony anatomy of the particular structural characteristics biomimetic biomechanical fixation, followed restore a fractured fracture conductivity and its load characteristics, is possible to achieve satisfactory reduction fracture and healing effect.

[0014] 本发明是骨折复位固定技术的创新,解决了尤其是老年人骨质疏松性骨折治疗后,骨松质愈合较差,影响骨骼愈合强度,有时候可能导致骨折延迟愈合及再骨折的老大难冋题。 [0014] The present invention is a fracture fixation technology innovation, especially after the solution elderly osteoporotic fracture, poor cancellous bone healing, bone healing impact strength, sometimes may cause delayed fracture healing and re-fracture Jiong long-standing problem.

[0015] 本发明的微孔仿生骨折固定装置适用于全身骨折内固定治疗,尤其适用于关节附近复杂骨小梁结构骨折,结合微创技术及影像导航技术的支持,具有良好的预期,可以获得显著的经济和社会效益。 [0015] The present invention is a microporous bionic fracture fixation device is suitable for the fixation body fractures, especially for complex fractures near the joint trabecular structure, in conjunction with minimally invasive techniques and imaging support navigation technology, is expected to have a good, can be obtained significant economic and social benefits.

附图说明 BRIEF DESCRIPTION

[0016] 图1是本发明的股骨颈骨折使用状态示意图; 图2是本发明的股骨近端骨折使用状态示意图; [0016] FIG. 1 is a schematic view of the femoral neck fractures of the present invention use state; FIG. 2 is a proximal femur fractures according to the present invention using a schematic view of a state;

图3是本发明的股骨远端骨折使用状态示意图; FIG 3 is a fracture of the distal femur is a schematic diagram of the present invention use state;

图4是本发明的胫骨一种骨折使用状态示意图; FIG 4 is a tibia bone of the present invention, one kind of fracture is a schematic view of the usage state;

图5是本发明的另一种胫骨骨折使用状态图; FIG 5 is another tibial fractures present invention use state;

图6是本发明的跟骨骨折使用状态示意图。 FIG 6 is a schematic calcaneal fractures according to the present invention in use.

[0017] 图中标记如下:内固定钉1、内固定螺纹2、锁紧结构3、张力孔4、微孔5、豁口6、股骨固定主钉7、股骨8、胫骨9、跟骨10、钢板11、张力线12。 [0017] FIG labeled as follows: 1 nail fixation, internal fixing thread 2, the locking structure 3, the tension holes 4, 5 micropores, notch 6, 7 femur fixation nail, femur 8, the tibia 9, calcaneus 10, plate 11, the tension line 12.

具体实施方式 Detailed ways

[0018] 本发明包括一个圆杆状的内固定钉1,内固定钉I的中心有通孔,内固定钉I 一端有内固定螺纹2,另一端有锁紧结构3,内固定钉I的两端分别位于骨折部位两侧的骨骼内。 [0018] The present invention comprises a round rod of a fixation nail, nail fixation centers I of the through hole, the inner end I fixation pegs fixing thread 2, and the other end with a locking structure 3, the internal fixation pegs I ends are located on both sides of the bone fracture site.

[0019] 本发明的内固定钉I的杆体上有张力孔4,张力孔4的两端位于内固定钉I的杆体两侧,张力孔4穿过内固定钉I的中心轴线,张力孔4的轴向与张力骨小梁的方向一致,图中画出了张力骨小梁的张力线12,多个张力孔4沿着内固定钉I的轴向平行排列,张力孔4的位置与骨折部位相对,在相邻张力孔4之间的内固定钉I的杆体上分布有微孔5结构,张力孔4的直径为0.1-3_,微孔5的孔径为l-50um。 [0019] The present invention fixation nail holes tension rod I is 4, both ends of the tension rod hole 4 located on both sides of the body of the fixation pegs I, through the central axis of the tension within the hole 4 I of fixation pegs, tension holes 4 axial tension coincides with the direction of trabecular bone, shown in FIG trabecular tension the tension line 12, a plurality of holes 4 along the inner tension I fixation pegs axially parallel arrangement, the position of fracture tension hole 4 parts of the hand, on the fixation pegs I between adjacent tension rod hole 4 distributed microporous structure 5, the diameter of hole 4 is 0.1-3_ tension, pore micropores is 5 l-50um. 这种结构可以允许骨小梁沿内固定钉I上的张力孔4及微孔5长入,达到髓内外骨痂同时生长,缩短骨折愈合时间,减少骨折及手术的各种并发症。 This structure can allow the inner edge of the trabecular bone fixation nail hole 4 and the tension I micropores 5 ingrowth, the outer reaches intramedullary callus grown simultaneously, shorten healing time complications, reducing fractures and surgery. 同时,微孔5结构结合数个张力孔4使内固定钉I的弹性模量更好,内固定强度没有得到削弱,防止出现断钉、应力性折断的情况。 Meanwhile, a microporous structure 5 in connection with several holes 4 so that the tension modulus of elasticity better fixation pegs I, the fixing strength was not impaired, preventing screw breakage of the break is the stress.

[0020] 在内固定钉I位于股骨外侧的端面上有豁口6,豁口6与端面中心垂直,豁口6的方向与张力孔4的轴向一致。 There notch [0020] I is located in the inner lateral femoral fixation pegs end face 6, 6 cutout coincides with the central vertical end surface, the axial gap 6 in the direction of the tension hole 4. 豁口6可以方便指引手术操作人员寻找适宜的骨折断端骨小梁方向来调整进针方向。 Guide gap 6 can easily find suitable operator personnel trabecular bone fracture fragments to adjust the direction of the needle direction.

[0021] 图1显示,在对股骨颈骨折进行复位固定时,内固定钉I为连接骨折的股骨颈两侧的固定钉。 [0021] Figure 1 shows, when the fixation of femoral neck fractures, internal fixation of femoral neck nail I is attached to both sides of the fracture fixation nail. 内固定钉I有内固定螺纹2的一端与骨折的股骨头相连接,内固定钉I的另一端的锁紧结构3连接在股骨8外侧,内固定钉I的张力孔4的位置位于骨折的股骨颈两侧。 I fixation nail fixing screw at one end and an inner femoral fracture 2 is connected, the other end of the locking structure is fixed within the staple 3 I 8 is connected to the outside of the femur, the position of the fixation nail hole 4 I positioned tension fracture both sides of the neck. 在股骨8内沿着股骨8轴向有股骨固定主钉7,股骨固定主钉7的上部有连接孔,连接孔的直径与内固定钉I的外径相匹配,内固定钉I穿在股骨固定主钉7的连接孔内,股骨固定主钉7的轴向与内固定钉I的轴向有90-140度的夹角。 8 in the femur with a femoral 8 axially along the femur fixation nail 7, the upper portion of the femur fixation nail holes 7 are connected, the outer diameter and the inner diameter of the connecting hole of fixation pegs I match, the femoral fixation pegs wear I 7 fixing hole connected to the nail, the nail axially fixed axially with femur fixation nail 7 I have an included angle of 90-140 degrees.

[0022] 图2、3显示,在对股骨8近端和远端骨折进行复位固定时,内固定钉I为连接骨折的股骨8两侧的固定钉,内固定钉I沿着股骨轴向进行固定,内固定钉I的张力孔4的位置位于骨折的股骨8两侧,张力孔4的方向与股骨8内的张力线12的方向相同,内固定钉I的上端连接在股骨8的顶端,内固定钉I的下端连接在股骨8骨折部分内。 [0022] FIG. 3 shows that when the proximal and distal femur fractures 8 fixation, internal fracture fixation pegs I is connected to both sides of the femoral fixation pegs 8, fixed in the axial direction I of the femur nail a fixed, stationary position within the tension I nail hole 4 located on both sides of femoral fractures 8, the same direction as the direction of the tension hole 4 of the femur 812 in the tension line, the upper end of the fixation pegs I is connected at the top of the femur 8, I fixed the lower end of the staple 8 is connected to the fractured portions of the femur. 内固定钉I位于股骨8外侧的端面上有豁口6,豁口6与端面中心垂直,豁口6的方向与张力孔4的轴向一致。 There notch end surface 8 is located in a fixed lateral femoral nail I 6 6 cutout coincides with the central vertical end surface, the axial gap 6 in the direction of the tension hole 4.

[0023] 图1结构主要用于股骨颈骨折,图2结构主要用于股骨粗隆间骨折。 [0023] FIG 1 is mainly used for the structure of femoral neck fracture, the structure of FIG. 2 is mainly used intertrochanteric fracture. 根据骨折部位,这些结构可以组合使用,可以单独使用。 The fracture site, these structures may be used in combination, it can be used alone.

[0024] 本发明的内固定钉I的张力孔4和微孔5在内固定钉I杆体上的长度范围为30-50mm,图1、图2显示的实施例中的长度范围为45mm。 [0024] The length of the tension on the internal fixation nail holes 4 I of the present invention and a microporous inner 5 rod fixation pegs I is 30-50mm, FIG. 1, the length of the second embodiment shown in the figures is 45mm.

[0025] 图4、5显示,在对胫骨9骨折进行复位固定时,内固定钉I的有内固定螺纹2的一端穿过外侧骨折的胫骨9与内侧的胫骨9相连接,内固定钉I的另一端的锁紧结构3位于外侧骨折的胫骨9连接钢板11的外侧,内固定钉I的张力孔4的位置位于骨折的胫骨9部位两侧。 [0025] Figures 4 and 5 show, when the tibia 9 fractures fixation with the fixation pegs I end of the fixing screw 2 through the tibial outer fracture 9 and the medial tibial 9 connected fixation nails I locking structure 3 located at the other end of the outer tibial fractures plate 9 is connected to the outside 11 located on both sides of the fracture of the tibia portion 9 fixed position within the staple holes 4 I tension.

[0026] 图6显示,在对跟骨10骨裂进行固定时,内固定钉I的两端分别位于跟骨10的两侦牝内固定钉I的一端有螺纹,螺纹上有锁母,内固定钉I的另一端有钉帽,拧紧锁母可以将骨折的跟骨10固定,内固定钉I的张力孔4的位置位于骨折的跟骨10部位两侧。 [0026] Figure 6 shows that when fractures of the calcaneus 10 is fixed, at both ends of the staples I fixed at one end respectively in two of the investigation 10 female calcaneal fixation pegs I is threaded, with a locking nut on the thread, the other end of the staple have I nut, tightening the locking mother fractures 10 may be fixed, fixed position of the tension nail hole 4 located on both sides of the I portion 10 fractures of the calcaneus.

[0027] 本发明的内固定钉I采用可吸收性材料及非吸收性材料两种材质作为内固定植入物。 Fixation nail [0027] I of the invention may employ non-absorbent materials and absorbent material of two materials as fixation implants. 可吸收材料适用于老年人,相应骨质强度较小,负重较轻,组织相容性好,减少了二次手术的伤害。 Absorbable material suitable for the elderly, correspondingly small bone strength, lighter weight, tissue compatibility, reducing the damage of the second operation. 非吸收材料适用于中青年患者,使用具有较好组织相容性的钛类材料,电离反应较轻,内固定强度大,排异轻,也可不需取出。 Non-absorbent material suitable for young patients, using a titanium-based material having good compatibility with tissues, ionization was mild, high fixation strength, light rejection, may not need to be removed.

Claims (4)

1.一种促进骨折愈合的微孔仿生骨折固定装置,其特征在于:它包括一个圆杆状的内固定钉(I),内固定钉(I)的中心有通孔,内固定钉(I) 一端有内固定螺纹(2),另一端有锁紧结构(3),内固定钉(I)的两端分别位于骨折部位两侧的骨骼内,内固定钉(I)的杆体上有张力孔(4),张力孔(4)的两端位于内固定钉(I)杆体的两侧,张力孔(4)穿过内固定钉(I)的中心轴线,张力孔(4)的轴向与张力骨小梁的方向一致,多个张力孔(4)沿着内固定钉(I)的轴向平行排列,张力孔(4)的位置与骨折部位相对,在相邻张力孔(4)之间的内固定钉(I)的杆体上分别有密布的微孔(5)结构,张力孔(4)的直径为0.l_3mm,微孔(5)的孔径为l-50um。 1. A microporous biomimetic fracture healing fracture fixation device, characterized in that: it comprises a circular rod fixation nail (I), the center of the fixation pegs (I) is a through hole, the fixing nail (I ) fixed at one end thread (2), the other end has a locking structure (3), fixed at both ends of the staple (I) are located on both sides of the bone fracture site, tension on the inner fixation pegs (I) of the shaft both end sides of the hole (4), the tension hole (4) is located within the fixation pegs (I) of the rod (4) passes through the inner hole of the fixing nail tension (I) of the central axis, a tension hole (4) in the axial direction coincides with the direction of tension of the trabecular bone, (4) a plurality of tension holes axially arranged in parallel along the inner fixation pegs (I), the tension of the hole (4) relative to the position of the fracture site, the tension in the adjacent hole (4) have dense pores (5) fixed to the inner shaft structure between the staples (I), respectively, the diameter of the tension hole (4) is 0.l_3mm, micropores (5) a pore size of l-50um.
2.根据权利要求1所述的促进骨折愈合的微孔仿生骨折固定装置,其特征在于:所述内固定钉(I)为连接骨折的股骨颈两侧的固定钉,内固定钉(I)有内固定螺纹(2)的一端与骨折的股骨头相连接,内固定钉(I)的另一端的锁紧结构(3)连接在股骨外侧,内固定钉(O的张力孔(4)的位置位于骨折的股骨颈两侧,在股骨内沿着股骨轴向有股骨固定主钉(7),股骨固定主钉(7)的上部有连接孔,连接孔的直径与内固定钉(I)的外径相匹配,股骨固定主钉(7)的轴向与内固定钉(I)的轴向有90-140度的夹角。 The microporous promote healing according to claim 1 biomimetic fracture fixation device, wherein: said fixation nail (I) is connected to both sides of the femoral fixation pegs fracture fixation nail (I) inner fixing thread (2) has one end connected to the femoral head fractures, locking structure (3) in the other end of the fixation pegs (I) is connected to the outside of the femur, the fixation pegs (O tension hole (4) located on both sides of femoral neck fracture in the femur with a femur fixation in the axial direction of the femur nail (7), fixed to the upper femur nail (7) of the connection hole, the inner diameter of the connection hole fixation pegs (I) outer diameter matches the inner axial fixation pegs (I) is axially fixed to the femur nail (7) has an angle of 90-140 degrees.
3.根据权利要求1所述的促进骨折愈合的微孔仿生骨折固定装置,其特征在于:所述内固定钉(I)为连接骨折的股骨(8 )两侧的固定钉,内固定钉(I)沿着股骨(8 )轴向,内固定钉(I)的上端连接在股骨(8)的顶端,内固定钉(I)的下端连接在股骨(8)骨折部分内,内固定钉(I)的张力孔(4)的位置位于骨折的股骨(8)两侧。 1 according to promote fracture healing according to claim bionic microporous fracture fixation device, wherein: said fixation nail (I) is connected to the femoral fracture (8) on both sides of the fixing nail, nail fixation ( the I) (8) axially upper end, internal fixation pegs (I) is connected along the top of the femur in the femur (8), the lower end of the fixation pegs (I) is connected (8) partially fracture of the femur, fixation nail ( position I), the tension hole (4) is located in the femoral fracture (8) on both sides.
4.根据权利要求1、2或3所述的促进骨折愈合的微孔仿生骨折固定装置,其特征在于:所述内固定钉(I)位于股骨(8)外侧的端面上有豁口(6),豁口(6)与端面中心垂直,豁口(6)的方向与张力孔(4)的轴向一致。 The microporous promote healing of claim 1, 2 or claim 3 bionic fracture fixation device, comprising: an end with a notch of the inner surface of the outer fixation pegs (I) is located in the femur (8) (6) consistent axial gap (6) and the center of the vertical end surface, gap (6) in the direction of the tension hole (4).
CN201510065992.0A 2015-02-09 2015-02-09 Microporous bionic fracture fixing device capable of promoting fracture healing CN104586496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510065992.0A CN104586496A (en) 2015-02-09 2015-02-09 Microporous bionic fracture fixing device capable of promoting fracture healing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201510065992.0A CN104586496A (en) 2015-02-09 2015-02-09 Microporous bionic fracture fixing device capable of promoting fracture healing
US15/106,563 US10363075B2 (en) 2015-02-09 2015-05-22 Porous bionic internal fixation device for promoting healing of fractured bone
PCT/CN2015/079605 WO2016127522A1 (en) 2015-02-09 2015-05-22 Porous bionic internal fixation apparatus for promoting fracture healing

Publications (1)

Publication Number Publication Date
CN104586496A true CN104586496A (en) 2015-05-06

Family

ID=53112790

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510065992.0A CN104586496A (en) 2015-02-09 2015-02-09 Microporous bionic fracture fixing device capable of promoting fracture healing

Country Status (1)

Country Link
CN (1) CN104586496A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105769314A (en) * 2016-03-27 2016-07-20 陈伟 Detachable pedicle screw
WO2016127522A1 (en) * 2015-02-09 2016-08-18 张英泽 Porous bionic internal fixation apparatus for promoting fracture healing

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702482A (en) * 1991-11-19 1997-12-30 Zimmer, Inc. Implant fixation stem
US20040122431A1 (en) * 2002-10-04 2004-06-24 Lutz Biedermann Bone screw and bone screw with holding element
US20040267263A1 (en) * 2003-06-24 2004-12-30 Ethicon, Inc. Porous resorbable graft fixation pin
US20040267265A1 (en) * 2003-04-29 2004-12-30 Kyle Richard F. Bone screw with fluid delivery structure
CN101569555A (en) * 2008-04-30 2009-11-04 施明祥 Multi-aperture titanium hollow metal bar (nail)
CN101631515A (en) * 2006-10-13 2010-01-20 西姆特里医疗有限公司 Medical devices
CN101716101A (en) * 2009-12-23 2010-06-02 冀原 Artificial hip joint thighbone end prosthesis
CN201529176U (en) * 2009-11-17 2010-07-21 北京天新福医疗器材有限公司 Embedded bone trabecula intervertebral fusion device used for anastomosing vertebra
CN201631366U (en) * 2010-03-25 2010-11-17 北京天新福医疗器材有限公司 Fastening nail for femoral neck fracture

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702482A (en) * 1991-11-19 1997-12-30 Zimmer, Inc. Implant fixation stem
US20040122431A1 (en) * 2002-10-04 2004-06-24 Lutz Biedermann Bone screw and bone screw with holding element
US20040267265A1 (en) * 2003-04-29 2004-12-30 Kyle Richard F. Bone screw with fluid delivery structure
US20040267263A1 (en) * 2003-06-24 2004-12-30 Ethicon, Inc. Porous resorbable graft fixation pin
CN101631515A (en) * 2006-10-13 2010-01-20 西姆特里医疗有限公司 Medical devices
CN101569555A (en) * 2008-04-30 2009-11-04 施明祥 Multi-aperture titanium hollow metal bar (nail)
CN201529176U (en) * 2009-11-17 2010-07-21 北京天新福医疗器材有限公司 Embedded bone trabecula intervertebral fusion device used for anastomosing vertebra
CN101716101A (en) * 2009-12-23 2010-06-02 冀原 Artificial hip joint thighbone end prosthesis
CN201631366U (en) * 2010-03-25 2010-11-17 北京天新福医疗器材有限公司 Fastening nail for femoral neck fracture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016127522A1 (en) * 2015-02-09 2016-08-18 张英泽 Porous bionic internal fixation apparatus for promoting fracture healing
US10363075B2 (en) 2015-02-09 2019-07-30 Yingze Zhang Porous bionic internal fixation device for promoting healing of fractured bone
CN105769314A (en) * 2016-03-27 2016-07-20 陈伟 Detachable pedicle screw

Similar Documents

Publication Publication Date Title
Ilizarov Transosseous osteosynthesis: theoretical and clinical aspects of the regeneration and growth of tissue
US6270499B1 (en) Bone fixation device
Brunner et al. Special techniques in internal fixation
CN1157160C (en) Improved bone screw for use in orthopaedic surgery
Trease et al. Locking versus nonlocking T-plates for dorsal and volar fixation of dorsally comminuted distal radius fractures: a biomechanical study
Black et al. Comparison of internal fixation techniques in metacarpal fractures
Fragomen et al. The mechanics of external fixation
CN100379388C (en) Nail and screw fixation system for improving the fixation of proximal fractures of the humerus
US6645210B2 (en) Rod implant for osteosynthesis of long bones
US9308025B2 (en) Foot, ankle and lower extremity compression and fixation system and related uses
HU217055B (en) Device unite bone fragments
Lewis et al. Biomechanics of circular external skeletal fixation
US6488685B1 (en) Extramedullary rod fixateur for bones
US8267972B1 (en) Bone plate
Doi et al. Vascularized bone graft from the supracondylar region of the femur
Bong et al. The history of intramedullary nailing
JP5351515B2 (en) Sternum reconstruction system
Ekenstam et al. The distal radio ulnar joint: the influence of geometry and ligament on simulated Colles' fracture. An experimental study
Kelikian Technical considerations in hallux metatarsalphalangeal arthrodesis
Matthews et al. Innovations in osteosynthesis and fracture care
Seibert et al. External fixation in trauma of the foot and ankle
US20120116459A1 (en) Bone Fixation Device and Methods for Use Thereof
EJ-Rosasy et al. 34 Congenital Pseudarthrosis of the Tibia
Goldstein et al. The evolution of the Ilizarov technique: part 2: the principles of distraction osteosynthesis
Weber et al. The External Fixator: AO/ASIF-Threaded Rod System Spine-Fixator

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)