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CN106510908A - Inner implantation device used for reconstructing knee joint cruciate ligament - Google Patents

Inner implantation device used for reconstructing knee joint cruciate ligament Download PDF

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Publication number
CN106510908A
CN106510908A CN 201611088123 CN201611088123A CN106510908A CN 106510908 A CN106510908 A CN 106510908A CN 201611088123 CN201611088123 CN 201611088123 CN 201611088123 A CN201611088123 A CN 201611088123A CN 106510908 A CN106510908 A CN 106510908A
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CN
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fixing
end
inner
artificial
rotating
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CN 201611088123
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Chinese (zh)
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CN106510908B (en )
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周大勇
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周大勇
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/461Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of knees
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00743Type of operation; Specification of treatment sites

Abstract

The invention discloses an inner implantation device used for reconstructing a knee joint cruciate ligament. The inner implantation device comprises a femur fixing end and a tibia fixing end. Each of the femur fixing end and the tibia fixing end comprises a mounting bushing and an artificial tendon connecting terminal, the artificial tendon connecting terminal is sleeved by the mounting bushing, and the exterior of the mounting bushing is provided with a threaded projection With respect to the inner implantation device used for reconstructing the knee joint cruciate ligament, a rotating shaft at the inner side rotates by means of the elastic potential energy of a spiral spring, gears on two rotating shafts are engaged with each other for transmission, the rotating shaft at the outer side rotates following the rotating shaft at the inner side, and therefore redundant artificial tendons between the femur fixing end and the tibia fixing end are wound on the rotating shaft at the outer side, artificial tendons between the femur fixing end and the tibia fixing end are kept in the optimum state, the elastic potential energy of the spiral spring plays a role in damping, pressure on the artificial tendons can be effectively reduced, and the service life of the artificial tendons is prolonged.

Description

一种用于膝关节交叉韧带重建的内植装置 An internal implant device for cruciate ligament reconstruction

技术领域 FIELD

[0001] 本发明涉及膝关节交叉韧带重建技术领域,具体为一种用于膝关节交叉韧带重建的内植装置。 [0001] The present invention relates to a technical field cruciate ligament reconstruction, in particular to an implant for the posterior cruciate ligament reconstruction means.

背景技术 Background technique

[0002] 人膝关节交叉韧带重建方法中所使用的肌腱移植物来源可分为:自体肌腱移植重建、同种异体肌腱移植重建以及人工肌腱移植重建;按移植物固定方式可分为挤压固定、横穿固定以及悬挂固定,虽然目前人膝关节交叉韧带重建手术运用较广且较为成熟,但目前来看仍有其不足之处:自体肌腱移植可以达到较好的腱骨愈合,固定强度较好,但来源有限,取自体肌腱损伤大,固定早期稳定性不足,易发生早期松动,且由于需要增加截取自体肌腱的手术过程,导致整台手术操作复杂、对病人损伤较大;同种异体肌腱取自尸体肌腱,不仅来源受限,同时有传播疾病、发生免疫排斥的风险,且处理后的同种异体肌腱强度较差,肌腱与骨愈合的能力降低,固定早期稳定性亦不足,目前应用受限;人工肌腱本身可以达到较高的强度和较好的生物免疫原性,但是, [0002] The human knee joint cruciate ligament reconstruction tendon transplant sources used in the method can be divided into: autologous tendon graft reconstruction, reconstruction tendon allograft transplantation and artificial tendon graft reconstruction; graft fixation by press-fixing can be divided into , across fixed and fixed suspension, although people cruciate ligament reconstruction surgery using a wider and more mature, but for now still has its shortcomings: autologous tendon graft can achieve better bone healing tendon, fixed strength than good, but limited sources, autologous large tendon injury, lack of stability of fixed early, early prone to loose, and because of the need to increase the interception of autologous tendon surgery, resulting in the entire complex surgical procedure, the patient greater damage; allogeneic tendon tendon taken from the bodies, not only limited sources, while the spread of disease, the risk of immune rejection occurs and poor allograft tendon strength after treatment, reduce the ability of the tendon to bone healing, stability is also insufficient fixed early, at present application is limited; artificial tendon itself can achieve high strength and good biological immunogenicity, however, 当手术部位愈合之后,由于手术,股骨与胫骨之间的距离产生轻微的变化,而人工肌腱的伸缩长度固定,从而无法根据股骨与胫骨之间距离的轻微变化进行调节,直接患者的康复。 After the surgical site heal, surgery since the distance between the femoral and tibial slight variations, the fixed length of the telescopic artificial tendon, and thus can not be adjusted according to a slight change in the distance between the femur and the tibia, the rehabilitation of the patient directly.

发明内容 SUMMARY

[0003] 本发明要解决的技术问题是克服现有的缺陷,提供一种用于膝关节交叉韧带重建的内植装置,利用平面涡卷弹簧的弹性势能,以及两个转动轴上的齿轮配合,使得股骨与胫骨之间的人工肌腱的长度能进行调节,可以有效解决背景技术中的问题。 [0003] The present invention is to overcome the problems of the prior art drawbacks, providing an apparatus for the plant cruciate ligament reconstruction using the elastic potential energy of the plane of the spiral spring, and two gear mating rotating shaft the length between the artificial tendon, and tibia so that the femur can be adjusted, can effectively solve the problems of the background art.

[0004] 为实现上述目的,本发明提供如下技术方案:一种用于膝关节交叉韧带重建的内植装置,包括股骨固定端和胫骨固定端,所述股骨固定端和胫骨固定端均包括安装套管和人工肌腱连接端子,人工肌腱连接端子套装在安装套管内部,安装套管的外部设有螺纹凸起,人工肌腱连接端子的内部设置安装腔,安装腔内设有两个竖直设置的转动轴,转动轴的上下两端转动设置在安装腔腔壁上的盲孔内,位于内侧的转动轴下部与安装腔腔壁之间安装有平面涡卷弹簧,两个转动轴的上部连接有相互啮合的齿轮,位于外侧的转动轴中部设有安装槽,安装槽的一侧设有锁紧螺柱,人工肌腱连接端子的端部设有两个与安装槽相对应的通孔。 [0004] To achieve the above object, the present invention provides the following technical solutions: A device implanted within the posterior cruciate ligament reconstruction, comprising a fixed end of the femur and tibia fixed end, the fixed end of the femur and tibia mounting comprises a fixed end artificial tendon connection sleeve and the terminal, artificial tendon connection terminals mounted externally fitted over the inner sleeve, the mounting sleeve is provided with a threaded projection, artificial tendon connection terminals disposed inside the mounting cavity, the cavity is provided with two vertically disposed mounting axis of rotation, the upper and lower ends of the rotation shaft mounted rotatably disposed within the blind bore of the chamber wall cavity, a flat spiral spring mounted between the rotary shaft and positioned inside the lower chamber wall mounting cavity, an upper rotating shaft connecting two there gears meshing with each other, the central axis of rotation located outside the mounting groove is provided, one side of the mounting groove is provided with a locking stud, artificial tendon end of the connecting terminal of a through hole and two corresponding mounting grooves.

[0005]作为本发明的一种优选技术方案,所述安装套管和人工肌腱连接端子均为圆柱状,且安装套管和人工肌腱连接端子的一端为半球状。 [0005] As a preferred aspect of the present invention, the mounting sleeve and artificial tendons connecting terminals are cylindrical, and the mounting sleeve and artificial tendons connecting the hemispherical end of the terminal.

[0006]作为本发明的一种优选技术方案,所述安装套管的内壁上设有卡槽,人工肌腱连接端子的外部设有与卡槽相对应的卡块。 [0006] As a preferred aspect of the present invention, the mounting slots provided on the inner wall of the sleeve, artificial tendons external connection terminal is provided with a card slot corresponding to the block.

[0007]作为本发明的一种优选技术方案,所述人工肌腱连接端子端部通孔的上下两侧壁上设有盲孔,盲孔内安装有竖直设置的滚轴。 [0007] As a preferred aspect of the present invention, both side walls of the upper and lower end portions of artificial tendon connection terminal is provided with a through hole blind hole, a blind hole arranged vertically mounted rollers.

[0008]与现有技术相比,本发明的有益效果是:本用于膝关节交叉韧带重建的内植装置利用平面涡卷弹簧的弹性势能使得内侧的转动轴转动,同时两个转动轴上的齿轮啮合传动,使得外侧的转动轴也跟随转动,从而将股骨固定端与胫骨固定端之间多余的人工肌腱缠绕在外侧的转动轴上,使得股骨固定端与胫骨固定端之间的人工肌腱保持在最佳状态,并且平面涡卷弹簧的弹性势能起到减震的作用,有效的减轻人工肌腱的压力,使得人工肌腱使用时间更长。 [0008] Compared with the prior art, the beneficial effects of the present invention are: the present implant device for cruciate ligament reconstruction using the elastic potential energy of the plane of the spiral spring inside the rotary shaft such that rotation of the rotating shaft while the two the drive gear such that rotation of the outer shaft is also rotated to follow, so that the excess of the femur between the fixed end and the fixed end of the artificial tibial tendon wound on the outer side of the rotating shaft, so that the artificial tendon between the fixed end and the fixed end of the femur tibial in the best condition, and the elastic potential energy of the plane of the spiral spring damping functions, it is effective to reduce the pressure of artificial tendon, an artificial tendon using such longer.

附图说明 BRIEF DESCRIPTION

[0009]图1为本发明的股骨固定端结构示意图; [0009] FIG femur fixed end structure of the present invention, a schematic diagram;

[0010]图2为本发明的胫骨固定端结构示意图; Tibial fixed end structure [0010] FIG. 2 is a schematic view of the present disclosure;

[0011]图3为本发明的人工肌腱连接端子内部结构示意图。 [0011] showing the internal structure of the terminal 3 of the present invention FIG artificial tendon connection.

[0012]图中:I股骨固定端、2腔骨固定端、3安装套管、4人工肌腱连接端子、5卡槽、6卡块、7螺纹凸起、8安装腔、9转动轴、10平面涡卷弹簧、11齿轮、12安装槽、13锁紧螺柱、14通孔、15滚轴。 [0012] FIG Where: I fixed end of the femur, tibia fixed end 2, the sleeve 3 is mounted, artificial tendons connecting terminal 4, slot 5, the sprag 6, 7 threaded projection, mounting cavity 8, the rotary shaft 9, 10 flat spiral spring, the gear 11, the mounting groove 12, locking stud 13, the through hole 14, the roller 15.

具体实施方式 detailed description

[0013]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清楚、完整地描述,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。 [0013] below in conjunction with the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 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。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0014] 请参阅图1-3,本发明提供一种技术方案:一种用于膝关节交叉韧带重建的内植装置,包括股骨固定端I和胫骨固定端2,股骨固定端I和胫骨固定端2均包括安装套管3和人工肌腱连接端子4,安装套管3和人工肌腱连接端子4均为圆柱状,且安装套管3和人工肌腱连接端子4的一端为半球状,圆柱状的安装套管3和人工肌腱连接端子4方便安装,人工肌腱连接端子4套装在安装套管3内部,安装套管3的内壁上设有卡槽5,人工肌腱连接端子4的外部设有与卡槽5相对应的卡块6,安装套管3的外部设有螺纹凸起7,卡槽5与卡块6配合连接使得人工肌腱连接端子4更稳固的套装在安装套管3的内部,同时在安装套管3安装时,安装套管3内的卡槽5可用于与螺丝刀配合,利用螺纹凸起7将安装套管3更方便的旋进至股骨或者胫骨上的骨道内,人工肌腱连接端子4的内部设置安装腔8,安 [0014] Referring to FIG 1-3, the present invention provides a technical solution: an internal device implanted cruciate ligament reconstruction, comprising a fixed end of the femur and tibia I 2 fixed end, the fixed end of the femur and tibia fixation I end 2 comprises a cylindrical mounting sleeve 3 and the connecting terminals 4 artificial tendon, an artificial tendon mounting sleeve 3 and the connecting terminals 4 are cylindrical, and the mounting sleeve 3 and artificial tendons connecting one end of the terminal 4 is hemispherical, the artificial tendon and the mounting sleeve 3 connecting terminals 4 easy installation, artificial tendons connecting terminal 4 set inside the mounting sleeve 3, 5 is mounted on the inner wall is provided with slots 3 of the casing, the artificial tendon external connection terminal 4 is provided with the card 5 corresponding to the card slot block 6, the outer sleeve 3 is provided with a mounting screw boss 7, the retainer and the slot 5 so that the mating connector 6 connecting terminals 4 artificial tendons more robust package 3 inside the mounting sleeve, and when mounting the mounting sleeve 3, slot 5 in the mounting sleeve 3 may be used in conjunction with a screwdriver, the projections 7 by a screw 3 and more convenient mounting sleeve screwed into the bone tunnel into the femur or tibia, artificial tendon connection terminal 4 is provided inside the installation chamber 8, Ann 装腔8内设有两个竖直设置的转动轴9,转动轴9的上下两端转动设置在安装腔8腔壁上的盲孔内,位于内侧的转动轴9下部与安装腔8腔壁之间安装有平面涡卷弹簧10,两个转动轴9的上部连接有相互啮合的齿轮11,位于外侧的转动轴9中部设有安装槽12,安装槽12的一侧设有锁紧螺柱13,人工肌腱连接端子4的端部设有两个与安装槽12相对应的通孔13,人工肌腱连接端子4端部通孔13的上下两侧壁上设有盲孔,盲孔内安装有竖直设置的滚轴15,股骨固定端I和胫骨固定端2,股骨固定端I内的人工肌腱从通孔13内的滚轴15之间穿过与胫骨固定端2连接,滚轴15随着人工肌腱的伸展进行转动,滚轴15防止人工肌腱与人工肌腱连接端子4之间产生摩擦而损坏。 Zhuangqiang 8 equipped with two vertically disposed rotary shaft 9, the rotation shaft 9 rotates upper and lower ends disposed within the blind bore of the mounting cavity 8 the cavity wall, a lower portion of the rotary shaft 9 is positioned inside the cavity wall mounting chamber 8 mounting a flat spiral spring 10 between the upper two rotary shaft 9 is connected to a gear 11 meshing with each other, the center of the rotary shaft 9 is located outside a mounting groove 12, one side of the mounting groove 12 is provided with a locking stud 13, artificial tendon end terminal connected to a through hole 4 of the mounting groove 12 and two corresponding 13, connecting the upper and lower sides of the artificial tendon wall terminal end portion 4 is provided with the through hole 13 of the blind hole, the blind hole mounting with rollers 15 arranged vertically, a fixed end of the femur and tibia I fixed end 2, 2 through the tibial bone connection between the fixed end 15 in the femoral fixation of artificial tendon from the inner end of the through hole I rollers 13, 15 roller with the extension of the artificial tendon is rotated, the roller 15 to prevent the artificial tendon and tendon connection terminal 4 artificial friction damage.

[0015] 在使用时:通过安装套管3外部的螺纹凸起7,以及安装套管3上与螺丝刀相匹配的卡槽5,将安装套管3固定在股骨或者胫骨上的骨道内,人工肌腱连接端子4外部的卡块6与卡槽5再次配合将人工肌腱连接端子4固定在安装套管3内部,从而实现股骨固定端I和胫骨固定端2的安装。 [0015] In use: threaded mounting sleeve 3 by the outer projection 7, and the mounting sleeve 3 and the driver matches the slot 5, the inner sleeve 3 is mounted fixed to the bone tunnel in the femur or tibia, artificial 4 tendon external connection terminal block of card slots 5 and 6 again for artificial tendon connection terminal 4 is fixed to the inner sleeve 3 is mounted, so as to achieve a fixed end of the femur and tibia I 2 end fixedly mounted.

[0016] 本发明利用平面涡卷弹簧10的弹性势能使得内侧的转动轴9转动,同时两个转动轴9上的齿轮11啮合传动,使得外侧的转动轴9也跟随转动,从而将股骨固定端I与胫骨固定端2之间多余的人工肌腱缠绕在外侧的转动轴9上,使得股骨固定端I与胫骨固定端2之间的人工肌腱保持在最佳状态,并且平面涡卷弹簧10的弹性势能起到减震的作用,有效的减轻人工肌腱的压力,使得人工肌腱使用时间更长。 [0016] The present invention utilizes the plane of the spiral spring 10 causes the elastic energy inside the rotary shaft 9 rotate while the gear 11 meshing transmission on two rotary shaft 9, so that the outer side rotation shaft 9 is also rotated to follow, so that the fixed end of the femur I end of the fixed tibial tendon between 2 extra artificial wound on the outer side of the rotating shaft 9, such that the fixed end of the femur and tibia I artificial tendon between the fixed end in the best condition, and the elastic flat spiral spring 10 potential to play the role of shock absorption, effectively reduce the pressure on the artificial tendons, making artificial tendon last longer.

[0017]尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。 [0017] While there has been illustrated and described embodiments of the present invention, those of ordinary skill in the art, to be understood that various changes may be made to these embodiments without departing from the principles and spirit of the present invention, modifications, substitutions and modifications, the scope of the invention being indicated by the appended claims and their equivalents.

Claims (4)

  1. 1.一种用于膝关节交叉韧带重建的内植装置,包括股骨固定端(I)和胫骨固定端(2),其特征在于:所述股骨固定端(I)和胫骨固定端(2)均包括安装套管(3)和人工肌腱连接端子(4),人工肌腱连接端子(4)套装在安装套管(3)内部,安装套管(3)的外部设有螺纹凸起(7),人工肌腱连接端子⑷的内部设置安装腔(8),安装腔⑶内设有两个竖直设置的转动轴(9),转动轴⑶的上下两端转动设置在安装腔(8)腔壁上的盲孔内,位于内侧的转动轴(9)下部与安装腔(8)腔壁之间安装有平面涡卷弹簧(10),两个转动轴(9)的上部连接有相互啮合的齿轮(11),位于外侧的转动轴(9)中部设有安装槽(12),安装槽(12)的一侧设有锁紧螺柱(13),人工肌腱连接端子(4)的端部设有两个与安装槽(12)相对应的通孔(13)。 An implant device within the posterior cruciate ligament reconstruction, comprising a fixed end of the femur (I) and the fixed end of the tibia (2), characterized in that: the fixed end of the femur (I) and the fixed end of the tibia (2) includes external mounting sleeve (3) and artificial tendon connection terminal (4), artificial tendon connection terminal (4) set in the mounting sleeve (3) inside the mounting sleeve (3) is provided with a threaded projection (7) , artificial tendons ⑷ connection terminal provided inside the installation chamber (8), equipped with two mounting cavity ⑶ rotary shaft (9) arranged vertically, upper and lower ends of the rotating shaft rotatably disposed in the mounting ⑶ chamber (8) cavity wall the blind hole, is positioned inside the rotary shaft (9) is mounted flat spiral spring (10) and mounted between the lower chamber (8) cavity wall, two upper rotary shaft (9) is connected to a gear mesh with each other (11), located outside the axis of rotation (9) has a central mounting groove (12), one side of the mounting groove (12) is provided with an end portion of the locking studs provided (13), an artificial tendon connection terminal (4) two mounting slots (12) corresponding to the through hole (13).
  2. 2.根据权利要求1所述的一种用于膝关节交叉韧带重建的内植装置,其特征在于:所述安装套管⑶和人工肌腱连接端子⑷均为圆柱状,且安装套管⑶和人工肌腱连接端子(4)的一端为半球状。 According to one of the claims 1 to cross the knee implant for ligament reconstruction of the apparatus, characterized in that: said mounting sleeve and artificial tendons ⑶ ⑷ connection terminals are cylindrical, and the mounting sleeve and ⑶ artificial tendon connection terminal (4) is hemispherical end.
  3. 3.根据权利要求1所述的一种用于膝关节交叉韧带重建的内植装置,其特征在于:所述安装套管⑶的内壁上设有卡槽⑶,人工肌腱连接端子⑷的外部设有与卡槽⑶相对应的卡块(6)。 According to claim 1, wherein one of said inner cross implant for knee ligament reconstruction apparatus, wherein: the mounting slots provided on the inner wall ⑶ ⑶ the sleeve, artificial tendons connecting the external terminals provided in ⑷ have the corresponding card slot ⑶ block (6).
  4. 4.根据权利要求1所述的一种用于膝关节交叉韧带重建的内植装置,其特征在于:所述人工肌腱连接端子(4)端部通孔(13)的上下两侧壁上设有盲孔,盲孔内安装有竖直设置的滚轴(15)。 According to claim 1, wherein one of said inner cross implant for knee ligament reconstruction of the apparatus, characterized in that: said artificial tendon connection terminal (4) end through hole (13) provided on both sides of the vertical walls blind hole, a blind hole is mounted with rollers (15) arranged vertically.
CN 201611088123 2016-12-01 2016-12-01 An internal implant device for cruciate ligament reconstruction CN106510908B (en)

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