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Posterior cruciate ligament protection device for total knee replacement

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Publication number
CN105708529A
CN105708529A CN 201610037625 CN201610037625A CN105708529A CN 105708529 A CN105708529 A CN 105708529A CN 201610037625 CN201610037625 CN 201610037625 CN 201610037625 A CN201610037625 A CN 201610037625A CN 105708529 A CN105708529 A CN 105708529A
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plate
protection
cruciate
posterior
ligament
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CN 201610037625
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Chinese (zh)
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周磊
曲铁兵
林�源
潘江
王志为
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首都医科大学附属北京朝阳医院
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    • 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

Abstract

The invention relates to a posterior cruciate ligament protection device for total knee replacement. The posterior cruciate ligament protection device is characterized by comprising a handle, wherein one end of the handle is fastened and connected with an auxiliary plate; the inner surface of the auxiliary plate is of an arc-shaped structure; one end, far away from the handle, of the auxiliary plate is fastened and connected with a fixed protection plate; the inner surface of the fixed protection plate is provided with a groove structure; and the end part, far away from the auxiliary plate, of the fixed protection plate is provided with a cutting edge. One end of the handle is fastened and connected with the auxiliary plate for covering a thighbone trochlear groove, and the fixed protection plate inserted into the tibial plateau sclerotin is fastened and connected into a position, far away from the handle, of the auxiliary plate, so that in the use process, the tibial plateau can be forwards pushed out relative to the thighbone by using the lever principle; and the convenience is brought to osteotomy. The inner surface of the fixed protection plate is provided with the groove structure, so that the posterior cruciate ligament and the posterior cruciate ligament bottom dead center can be covered and protected, and the posterior cruciate ligament tibial lateral bottom dead center avulsion fracture in and after the operation can be prevented.

Description

一种用于全膝关节置换术的后交叉韧带保护装置 Posterior cruciate ligament protective device for total knee arthroplasty

技术领域 FIELD

[0001]本发明涉及一种用于全膝关节置换术的后交叉韧带保护装置,属于医疗器械领域。 [0001] The present invention relates to the posterior cruciate ligament protective device for a total knee replacement surgery, a medical device field.

背景技术 Background technique

[0002]膝关节是人体最重要的关节之一,随着肥胖、社会老龄化以及运动创伤发病率的上升,罹患膝关节退变性疾病的中老年人数量逐年递增。 [0002] is one of the most important human knee joints, along with obesity, aging society and rising incidence of sports injuries, the number of elderly people suffering from degenerative knee disease every year. 全膝关节置换术是治疗中晚期严重膝关节退变性骨关节炎的主要手段,可以有效缓解膝关节疼痛,重建关节功能和活动度,得到了广泛的临床应用。 Total knee replacement surgery is the main treatment for advanced severe degenerative osteoarthritis of the knee, can effectively alleviate knee pain, joint function and reconstruction activity, it has been widely clinical application. 2010年,美国全年全膝关节置换手术量达到60万例,预计到2030年,美国每年将有348万例全膝关节置换手术。 In 2010, the annual US total knee replacement surgery volume reached 600,000 cases, 2030, the United States each year to 3.48 million cases of total knee replacement surgery. 与西方国家相比,我国罹患骨关节病的患者人数多达6500万,30岁以上人群的患病率为10%〜17%,65岁以上人群为60%,75岁以上人群为80%,其中致残率高达53%,由此可以看出有一半以上的患者需要进行全膝关节置换手术。 Compared with Western countries, the number of patients suffering from osteoarthritis of up to 65 million, more than 30 years of age prevalence rate of 10% ~ 17%, over 65 years of age is 60%, more than 75 years of age is 80% where the disability up to 53%, which can be seen more than half of patients require total knee replacement surgery. 全膝关节置换术的目的是恢复正常膝关节的运动,保留正常的膝关节活动范围和稳定性,保持膝关节良好的本体感觉。 Total knee replacement surgery aims to restore normal motion of the knee, preserving the normal knee range of motion and stability, maintain good knee proprioception. 而在手术时后交叉韧带的完整保留对于膝关节的稳定性及术后膝关节本体感觉的恢复和行走步态起着至关重要的作用。 The posterior cruciate ligament is intact after surgery and postoperative knee for stability of the knee joint proprioception recovery and gait plays a vital role.

[0003]后交叉韧带是膝关节腔内非常重要的前后向和旋转稳定结构。 After [0003] cruciate knee joint cavity is very important to the longitudinal and rotational stabilization structure. 它呈两端粗大、中间细长的圆索条形,表面被覆一层滑膜,后交叉韧带平均长度为34〜38mm,平均宽度为10〜13mm。 It was thick at both ends, an elongated circular intermediate strip cable, a surface coating layer of the synovium, the average length of the posterior cruciate ligament 34~38mm, an average width of 10~13mm. 后交叉韧带股骨的附着区位于股骨内髁的外侧面骨质,形状为半环形,宽度为19〜21mm,向下后方向走行,止于胫骨内外髁关节面的后部骨质,呈不规则的四边形,内外侧宽度为10〜12mm,并向后延伸到胫骨平台的下方约Icm处,其前方紧邻内外侧半月板后角的止点处。 Posterior cruciate ligament of the femur attachment area is located outer side surface of the medial femoral condyle bone, semi-annular shape, width 19~21mm, the downward traveling direction, beyond the tibial condylar articular surface of the rear portion of the bone, irregular quadrangular, a width of the outer 10~12mm, and extends downward at the rear to about Icm tibial plateau, at its front dead center immediately after the lateral meniscus angle. 后交叉韧带具有限制胫骨后移、膝关节后伸、旋转和膝关节侧方活动的生理功能。 Posterior cruciate ligament tibial limit after having shifted the knee extension, knee rotation and physiological functions side activity.

[0004]在现有的全膝关节置换手术中,由于没有专用的手术器械或装置保护后交叉韧带,只能通过目测或使用长钢钉来确定后交叉韧带下止点骨块的位置和大小,不仅费时费力,而且后交叉韧带保护效果欠佳。 [0004] The position and size of the existing total knee replacement surgery, since no dedicated post surgical instrument or ligament protective device, can be determined by visual inspection after use of a long nail or ligament cross dead point of the bone , not only time consuming, but the posterior cruciate ligament protection ineffective. 在用电动摆锯片进行胫骨平台截骨时,极易发生后交叉韧带胫骨侧下止点骨块部分撕脱或完全撕脱,引起后交叉韧带松弛,进而影响术后疗效和膝关节假体使用寿命,导致手术失败。 Posterior cruciate ligament retaining tibial bone site or completely torn avulsion, causing the saw blade when the swing electric tibial osteotomy, prone to cross ligament laxity, and further postoperative effects knee prosthesis life, leading to surgical failure.

发明内容 SUMMARY

[0005]针对上述问题,本发明的目的是提供一种专用的用于全膝关节置换术的后交叉韧带保护装置。 [0005] In view of the above problems, an object of the present invention is to provide a dedicated posterior cruciate ligament protective device for total knee replacement surgery.

[0006]为实现上述目的,本发明采取以下技术方案:一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:它包括一手柄,在所述手柄的一端紧固连接一辅助板,所述辅助板内表面为弧形;在所述辅助板远离所述手柄的一端紧固连接一固定护板,所述固定护板的内表面设置有凹槽结构;在所述固定护板远离所述辅助板的一端设置有刃口。 [0006] To achieve the above object, the present invention adopts the following technical solutions: A posterior cruciate ligament protective device for total knee arthroplasty, characterized in that: it comprises a handle at one end of a handle fastened auxiliary plate, said auxiliary arcuate inner surface plate; end remote from the handle of the auxiliary plate fastened in a fixed guard, said fixed guard plate inner surface is provided with a groove structure; the fixed an end remote from said shield plate is provided with auxiliary cutting edges.

[0007]在所述固定护板的外表面上靠近所述辅助板的位置紧固连接一限位凸起。 [0007] In the outer surface of the fixed position adjacent to the auxiliary shield plate fastened a limiting projection.

[0008]所述凹槽结构为圆弧形凹槽或矩形凹槽。 [0008] The groove structure is a circular arc groove or rectangular groove.

[0009]所述刃口为锯齿状结构。 [0009] The serrated edge structure.

[0010]所述手柄、所述辅助板和所述固定护板均采用不锈钢材料制成。 [0010] The handle, the auxiliary plate and the fixing guard are made of stainless steel plate.

[0011 ]所述手柄上设置有防滑螺纹。 Thread on the antiskid [0011] handle.

[0012]本发明由于采取以上技术方案,其具有以下优点:1、本发明由于在手柄的一端紧固连接一包裹股骨滑车沟的辅助板,在辅助板远离手柄的位置紧固连接一插入胫骨平台骨质的固定护板,因此在使用时能够利用杠杆原理将胫骨平台相对股骨向前推出,便于截骨。 [0012] As a result of the present invention, the above technical solution, which has the following advantages: 1, according to the present invention, since the end of the handle is fastened a plate package auxiliary femoral trochlear groove, the fastening auxiliary plate remote from the position of the handle is connected to a tibial insert bone fixing platform guard, therefore, in use the principle of leverage the femoral tibial plateau Release forward, easy to osteotomy.

2、本发明的辅助板由于内表面设置为弧形,因此在使用时能够适应股骨滑车沟的骨形便于固定,同时还能起到包裹保护后交叉韧带的作用。 2, the auxiliary plate of the present invention since the inner arcuate surface is disposed, so adapted, in use femoral trochlea bone shaped groove facilitates fixing, while also play a role in protective wrapping posterior cruciate ligament. 3、本发明的固定护板由于内表面设置有凹槽结构,因此能够包裹并保护后交叉韧带及后交叉韧带下止点,防止手术中后交叉韧带胫骨侧下止点撕脱骨折。 3, the fixed guard of the present invention since the inner surface is provided with a groove structure, and therefore capable of enclosing and protecting the rear cruciate ligament and the posterior cruciate ligament the bottom dead center, bottom dead center to prevent postoperative cruciate ligament tibial avulsion fracture. 4、本发明装置结构简单、使用方便并且制造成本低,极大地缩短了医护人员的手术时间。 4, the device structure of the present invention is simple, easy to use and inexpensive to manufacture, greatly reduces the operation time of the medical staff.

附图说明 BRIEF DESCRIPTION

[0013]图1是本发明的整体结构示意图; [0013] FIG. 1 is a schematic diagram of the overall configuration of the present invention;

[0014]图2是图1的侧视结构示意图; [0014] FIG. 2 is a schematic side view of the structure of Figure 1;

[0015]图3是本发明的固定护板的结构示意图; [0015] FIG. 3 is a schematic view of a fixed guard plate of the present invention;

[0016]图4是本发明的固定护板的截面示意图; [0016] FIG. 4 is a schematic sectional view of the fixed guard of the present invention;

[0017]图5是本发明装置的工作示意图。 [0017] FIG. 5 is a schematic view of the working apparatus of the present invention.

具体实施方式 detailed description

[0018]下面结合附图和实施例对本发明进行详细的描述。 Drawings and embodiments of the present invention will be described in detail [0018] below in conjunction.

[0019]如图1〜3所示,本发明包括一手柄1,在手柄I的一端紧固连接一辅助板2,辅助板2的内表面设置为圆弧形,用于匹配股骨滑车沟外形并包裹保护后交叉韧带。 [0019] FIG. 1 ~ 3, the present invention includes a handle 1, at the end of the handle I fastened the inner surface of an auxiliary plate 2, auxiliary plate 2 is disposed in an arc shape to match the shape of the femoral trochlear sulcus after wrapping and protection cruciate ligament. 在辅助板2远离手柄I并一端紧固连接一固定护板3,固定护板3的内表面设置有凹槽结构32(如图4所示),用于包裹并保护后交叉韧带及后交叉韧带下止点。 Auxiliary plate 2 away from the handle I and an end fastened to a fixed guard 3, the inner surface of the fixed guard plate 3 is provided with a groove structure 32 (FIG. 4), for wrapping and protecting the posterior cruciate ligament and the posterior cruciate ligament dead. 在固定护板3远离辅助板2的端部设置有便于插入腔骨平台骨质的刃口31。 Fixing the auxiliary plate remote from the guard plate 3 end portion 2 has a cutting edge 31 to facilitate insertion of the bone tibia platform.

[0020]上述实施例中,凹槽结构32可为圆弧形凹槽或矩形凹槽。 [0020] The above-described embodiments, structures the groove-shaped recess 32 may be arcuate or rectangular recess.

[0021]上述实施例中,在固定护板3的外表面上靠近辅助板2的位置紧固连接一限位凸起4,用于限制护板3插入胫骨平台骨质的距离。 [0021] In the above-described embodiment, the fixed guard plate adjacent the outer surface of the auxiliary plate 3 is fastened a 2 position limiting projection 4, for limiting the insertion distance shield 3 tibial bone.

[0022]上述实施例中,刃口31可为锯齿状结构。 [0022] In the above-described embodiments, the blade structure 31 may be serrated.

[0023] 上述实施例中,手柄I上设置有防滑螺纹。 [0023] The above-described embodiment, a non-slip thread provided on the handle I.

[0024]上述实施例中,手柄1、辅助板2和固定护板3均采用不锈钢材料制成。 [0024] In the above embodiment, the handle 1, 2 and the auxiliary plate 3 are fixed guard plate made of stainless steel.

[0025]如图5所示,本发明用于全膝关节置换术,在使用时首先屈曲膝关节至90°〜110°,去除前交叉韧带,显露后交叉韧带位于胫骨平台5后侧略偏外的止点,然后将辅助板2包裹在股骨6的滑车沟和后交叉韧带7前方,将固定护板3完全包绕在后交叉韧带7的胫骨侧止点周围的骨质处,并垂直于腔骨平台5通过刃口31将固定护板3锤击打入腔骨平台5骨质内,直至限位凸起4与胫骨平台5接触。 [0025] As shown in FIG 5, the present invention is used in total knee arthroplasty, when using the first knee flexion to 90 ° ~110 °, anterior cruciate ligament removed, revealing the rear cruciate ligament 5 is located a bit tibial plateau the outer dead center, the auxiliary plate 2 is then wrapped in front of the femoral trochlear groove 7 and 6 of the posterior cruciate ligament, the guard fixing plate 3 is completely wrapped PCL tibial bone stop 7 at a point around the vertical and in the tibia platform 5 is fixed by the edge 31 into the hammer guard plate 3 tibia bone platform 5 until the stopper projection 45 in contact with the tibial platform. 然后利用杠杆原理,手握持手柄I向后用力,进而带动辅助板2将胫骨平台5相对股骨6向前推出,使胫骨平台5充分显露并利用摆锯片8对胫骨平台5进行截骨,由于有固定护板3对后交叉韧带下止点进行保护,因此可以防止摆锯片8截骨时对后交叉韧带7造成损伤,完整保留了后交叉韧带胫骨平台止点骨质,防止手术中后交叉韧带胫骨侧下止点撕脱骨折。 Then the use of leverage, I hand holding the handle back hard, thereby bringing the auxiliary plate 2 relative to the femoral tibial plateau 5 6 forward launch, the tibial plateau 5 revealed and fully utilize pendulum saw eight pairs tibial osteotomy 5, because of the posterior cruciate ligament bottom dead point 3 fixed protection guard, 7 can be prevented damage to the posterior cruciate ligament balance when the saw blade 8 osteotomy, the intact posterior cruciate ligament tibial plateau after the bone stop point, to prevent intraoperative posterior cruciate ligament retaining tibial avulsion fracture.

[0026]上述各实施例仅用于说明本发明,其中各部件的结构、连接方式等都是可以有所变化的,凡是在本发明技术方案的基础上进行的等同变换和改进,均不应排除在本发明的保护范围之外。 [0026] The above-described embodiments are merely illustrative of the invention, wherein the structure of each member are all connections may be varied, and all equivalent conversion performed on the basis of the technical solution of the present invention and modifications, should not excluded from the scope of the present invention.

Claims (10)

1.一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:它包括一手柄,在所述手柄的一端紧固连接一辅助板,所述辅助板内表面为弧形;在所述辅助板远离所述手柄的一端紧固连接一固定护板,所述固定护板的内表面设置有凹槽结构;在所述固定护板远离所述辅助板的一端设置有刃口。 Posterior cruciate ligament protective device 1 for a total knee replacement surgery, characterized in that: it comprises a handle at one end of the auxiliary handle fastened a plate, the inner surface of the auxiliary plate is arcuate; the auxiliary plate remote from the end of the handle is fastened a fixed guard, said fixed guard plate inner surface is provided with a groove structure; auxiliary plate remote from said one end of the fixed shield is provided with a cutting edge .
2.如权利要求1所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:在所述固定护板的外表面上靠近所述辅助板的位置紧固连接一限位凸起。 As claimed in claim 1. A posterior cruciate ligament protective device for total knee arthroplasty, comprising: an outer surface of the protector plate fixed position near the auxiliary plate fastened a limit raised.
3.如权利要求1所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述凹槽结构为圆弧形凹槽或矩形凹槽。 One of the claim 1 for the posterior cruciate ligament protective device total knee replacement surgery, wherein: said structure is a recess or a rectangular recess arc groove.
4.如权利要求2所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述凹槽结构为圆弧形凹槽或矩形凹槽。 One of said claims 2 to 4. The ligament protective device after total knee replacement surgery, wherein: said structure is a recess or a rectangular recess arc groove.
5.如权利要求1或2或3或4所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述刃口为锯齿状结构。 5. An 1 or 2 or 3 or claim 4 for the posterior cruciate ligament protective device total knee replacement surgery, wherein: said zigzag edge structure.
6.如权利要求1或2或3或4所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述手柄、所述辅助板和所述固定护板均采用不锈钢材料制成。 6. An 1 or 2 or 3 or claim 4 for the posterior cruciate ligament protective device total knee replacement surgery, wherein: said handle, said plate and said auxiliary plate are fixed guard made of stainless steel.
7.如权利要求5所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述手柄、所述辅助板和所述固定护板均采用不锈钢材料制成。 As claimed in claim 5, wherein a posterior cruciate ligament protective device for total knee arthroplasty, wherein: said handle, said auxiliary plate and said fixed guard are made of stainless steel.
8.如权利要求1或2或3或4所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述手柄上设置有防滑螺纹。 8. An 1 or 2 or 3 or claim 4 for the posterior cruciate ligament protective device total knee arthroplasty, comprising: a non-slip thread provided on the handle.
9.如权利要求5所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述手柄上设置有防滑螺纹。 As claimed in claim 5, wherein a posterior cruciate ligament protective device for total knee arthroplasty, comprising: a non-slip thread provided on the handle.
10.如权利要求6所述的一种用于全膝关节置换术的后交叉韧带保护装置,其特征在于:所述手柄上设置有防滑螺纹。 As claimed in claim 6 a posterior cruciate ligament protective device for total knee arthroplasty, comprising: a non-slip thread provided on the handle.
CN 201610037625 2016-01-20 2016-01-20 Posterior cruciate ligament protection device for total knee replacement CN105708529A (en)

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CN202104981U (en) * 2011-04-19 2012-01-11 徐苗 Drill limiter
CN103190946A (en) * 2013-04-27 2013-07-10 上海市杨浦区中心医院 Tibia osteotomic protective device for unicompartmental arthroplasty
CN204683699U (en) * 2015-05-19 2015-10-07 中国人民解放军第四军医大学 Shin bone cuts bone conduction perpendicularly to protector
CN204744360U (en) * 2015-05-26 2015-11-11 邬波 Outside knee joint tenaculum leads out sled board
CN205379349U (en) * 2016-01-20 2016-07-13 首都医科大学附属北京朝阳医院 A posterior cruciate ligament protection device for making perfect knee joint displacement technique

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