CN102697549A - Operation tool for femoral head replacement - Google Patents

Operation tool for femoral head replacement Download PDF

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Publication number
CN102697549A
CN102697549A CN2012102097939A CN201210209793A CN102697549A CN 102697549 A CN102697549 A CN 102697549A CN 2012102097939 A CN2012102097939 A CN 2012102097939A CN 201210209793 A CN201210209793 A CN 201210209793A CN 102697549 A CN102697549 A CN 102697549A
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CN
China
Prior art keywords
cutting
femoral head
femoral
neck
portion
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CN2012102097939A
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Chinese (zh)
Inventor
施鲁孙
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施鲁孙
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Application filed by 施鲁孙 filed Critical 施鲁孙
Priority to CN2012102097939A priority Critical patent/CN102697549A/en
Priority to CN200810208249.62008.12.30 priority
Publication of CN102697549A publication Critical patent/CN102697549A/en

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Abstract

The invention discloses an operation tool for femoral head replacement. The operation tool comprises a cutting die sleeve and a die cutter; the cutting die sleeve is hollow and provided with a casing which is the same as the surface of the femoral neck in shape so as to be capable of being sleeved around the femoral neck simply and tightly, so that the die cutter can cut the to-be-replaced end of a femoral head into the shape of a preset anatomical section and can be taken off conveniently after an operation is finished; a catheter is arranged on the top side of the cutting die sleeve, so that a central hole can be drilled on the femoral head; and a horizontal channel flow is horizontally arranged at the middle section of the cutting die sleeve and can be used for accurately guiding when the femoral head is cut.

Description

股骨头置换手术工具 Femoral head replacement surgery tools

[0001] 本申请是申请号为200810208249. 6、申请日为2008年12月30日、发明名称为“股 [0001] This application is a Patent Application No. 200810208249.6, filed December 30, 2008, entitled "shares

骨头置换模块及手术工具”的分案申请。 Head replacement modules and surgical tools, "the divisional application.

技术领域 FIELD

[0002] 本发明涉及一种股骨头置换手术工具,特别是涉及一种以置换股骨颈表面的结构,有效改善人工股骨头与原始股骨头间的结合精确度,进而得以提升手术后的股骨纠正质量者。 [0002] The present invention relates to a femoral head replacement surgical tool, particularly to a surface structure in replacement of the femoral neck, effectively improve the bonding between the femoral head and the femoral original accuracy can be improved further corrected femur after surgery quality person.

背景技术 Background technique

[0003] 传统关于有柄或无柄人工髋关节的股骨头置换手术,其常见的切除部位为如图I所示,主要是直接将股骨4沿股骨颈41的基底部斜向(如切除线L4所示)切除该颈部连同病变或磨损的股骨头42,并将股骨髓腔掏空扩大后植入固定一人工髋关节柄,并由该人工髋关节柄结合一人工股骨头5 ;此种手术切除方式,于美国专利第5163961号“COMPRESSION-FIT HIP PROSTHSIS AND PROCEDURES FOR IMPLANTATION THEREOF,,专利案中,以及中国实用新型专利公告第CN2430959Y号【自锁式无柄人工髋关节】专利案中,自头颈部切除病变或磨损的股骨头42,并将一罩体51以螺栓固定于残留的股骨颈上,皆有明确的相关揭示,显见均已确为极普遍的手术方式;然而,此以上各种手术方式于实际应用上却有下列缺点: [0003] Traditional femoral head on a handle or sessile artificial hip joint replacement surgery, which is a common site of excision as shown in FIG. I, the main direct femoral neck 4 obliquely along the base portion 41 (e.g., ablation lines removal L4 shown) together with the neck or lesions of the femoral head 42 wear, after the femoral canal and a hollowed enlarged artificial hip joint implant the shank is fixed, the prosthetic hip stem by binding a femoral head 5; this kinds of surgical resection way, in US Patent No. 5163961 "COMPRESSION-FIT hIP PROSTHSIS aND pROCEDURES fOR IMPLANTATION THEREOF ,, patent case, as well as Chinese utility Model Patent Publication No. CN2430959Y [self-locking stemless hip prosthesis] patent case , from the removal of the head and neck lesions of the femoral head 42 or wear, and a neck cover 51 is bolted to the residue, there are disclosed clear correlation, showing indeed been very common surgical approach; however, this embodiment on the above various surgical practice there are the following disadvantages:

[0004] I)由于有柄人工髋关节置换手术需进行大部位的骨头与骨髓切除、掏除及塑型,使得手术的创伤程度、作业时间及失血量皆为的大幅增加,大大升高了整体手术的危险性; [0004] I) due to the handles of artificial hip replacement surgery the need for large parts of the bone and bone marrow removed, and dig in addition to plastic, so that a substantial increase in the extent of surgical trauma, blood loss and operation time are all greatly increased the the overall risk of surgery;

[0005] 2)由于大部位的骨头(如股骨颈的全部)的切除或掏除,均造成相关尺寸精度不易控制的因素,致使有柄人工髋关节柄表面或无柄人工髋关节的罩体内表面与装设的骨头表面准确匹配精度难以保持,不仅该等人工髋关节无法由较坚硬的骨头或骨颈表面来达到稳固的结合支撑力,容易因而造成应力集中的现象,直接而严重地影响手术的结果与手术愈后质量; [0005] 2) since a large portion of a bone resection (e.g., all of the femoral neck) or dig in addition, the dimensional accuracy of all relevant factors causing difficult to control, resulting in artificial hip stem with a handle or sessile surface of the cover body artificial hip joint surface of the bone surface and installation of precision is difficult to maintain an exact match, not only those artificial hip joint can not be made more rigid neck bones or bone surface to achieve a solid support binding force, and thus likely to cause stress concentration, directly and seriously affected surgery and surgical results prognosis mass;

[0006] 3)由于各种人工关节皆有其使用年限,经过长久使用后,往往都会有磨损、松动及下沉等合并症发生的情形而必须进行翻修手术,而上述传统有柄人工髋关节置换手术其由于初次手术切除部位及创伤极大,致使在需再次翻修手术时,则一般均需将整个股骨随腔再次扩大加深,如此一来,必然增加了创伤及手术的困难度; [0006] 3) a variety of artificial joints have their useful life, after long-term use, there will be situations often wear, loosening and subsidence of complications that must be revision surgery, and a handle above the traditional artificial hip joint Since its initial replacement surgery and trauma surgery site greatly, resulting in the need revision surgery again, the general need to expand the entire cavity of the femur with the deepening again, this way, will increase the difficulty and trauma surgery;

[0007] 4)传统无柄人工髋关节股骨头置换手术的骨头切除部位由于并无较科学且完整明确的量测定位方式及程序,因此大多需依靠手术者的经验来决定股骨颈部切除位置,而不同手术操作者所得到手术后结果亦有明显差异,难以确保手术的一致性,因此,手术的成败与良劣无法在手术前进行预先的模拟推演及评估,病患术前的心理建设较为困难; [0007] 4) Traditional stemless total hip replacement femoral head excision site of surgery because there is no more scientific and complete unambiguous determination of the amount of bits and procedure, so most need to rely on the experience of the surgeon to determine the position of the femoral neck resection , but after a different operator surgical results obtained are also significant differences, it is difficult to ensure consistency of operation, therefore, the success of the surgery and can not be pre-good bad simulation deduction and evaluation before surgery, patients before surgery mental construction more difficult;

[0008] 5)如图I所示,由于无柄人工髋关的罩体51斜设于该平行切除线L4的裁切平面上,且其股骨颈41表面无法保证与罩体51内部表面形成连续性紧配合,而使得关节应力无法均匀分布与传导,致使实际应用上容易产生应力集中,而影响其整体结构的耐用性,实有加以改进的必要。 [0008] 5) As shown in I, formed due to the interior surface of the cover body 51 sessile artificial hip cover body 51 is provided on the oblique cutout parallel cutting plane line L4, the femoral neck surface 41 and which can not be guaranteed continuity tight fit, so that joint stress can not be uniformly distributed with the conductive, so that stress concentration easily occurs in practical use, and affect the durability of the overall structure, there is a need to be improved.

[0009] 鉴于常见髋关节的股骨头置换手术有上述缺点,因此,需开发针对上述缺点的研究改进发明。 [0009] In view of the common femoral hip replacement surgery have the disadvantages described above, and therefore, the need for research to develop improved invention of the above disadvantages.

发明内容 SUMMARY

[0010] 本发明的主要目的在于提供一种股骨头置换模块,其可有效确保各部位间的组装精度,以改善手术后的髋关节的纠正效果,并提升手术质量。 [0010] The main object of the present invention is to provide a module head replacement, which may be effective in ensuring the accuracy for assembling various parts, in order to improve the effect of correcting the hip joint after surgery, and improve surgical quality.

[0011] 本发明的另一目的在于提供一种股骨头置换模块,其直接组合固定于股骨颈上, 而可以最大化面积保留该股骨颈部位,且不破坏股骨髓腔,因此,当有该部位需再次手术更新时,可再实施如传统有柄人工髋关节完全切除股骨颈部位的手术,以延长股骨的使用寿命O [0011] Another object of the present invention is to provide a head replacement module, which is directly secured to the neck in combination, but may be maximized to retain the neck portion of the area, it does not damage the femoral canal, and therefore, when there is when the surgical site for an update again, then surgery may be a handle as a conventional total hip completely resected femoral neck sites, in order to prolong the life of the femur O

[0012] 本发明的再一目的在于提供一种股骨头置换模块,其可紧密地套合于股骨颈上,且使其可完善地服贴于股骨颈近端表面上,并扩展延伸至股骨颈远程基底部,使不仅以置换模块取代(置换)已去除的股骨颈近端部位,并延伸至股骨颈的远程基底部位,使得以与近端去除股骨颈表面的部位及远程之未去除表面坚实部位取得最大解剖形支撑面积,以大幅增进其结合于股骨头上之后的强度,以确实牢固地将人工关节结合于人体股骨颈上,进而大幅确保及延长其使用寿命的目的。 [0012] A further object of the present invention is to provide a module head replacement, which may be closely nested on the neck, and that it can be perfectly put it on the proximal surface of the neck and extends to the femoral extended the bottom of the neck remote base, so that not only the replacement module to replace the proximal end portion of the femoral neck (substitution) has been removed, and extends to the remote base portion of the femoral neck, so that removal of the femoral neck with the proximal surface of the remote location and the surface of the unremoved solid parts to achieve maximum anatomical shaped support area, to significantly enhance its strength after binding to the femoral head to do the artificial joint is firmly bound to the human femoral neck, and thus ensure significantly prolong its useful life.

[0013] 本发明的又一目的在于提供一种股骨头置换手术工具,其通过由计算机扫描数据所精确组制,不仅可符合生物力学机理,亦可减少骨骼裁切面积而可降低手术的损伤及困难度,更可配合适当的仿真软件,将上述工具数据输入,以进行术前的推演模拟,使手术操作者可先行熟习手术过程中的各种状况,以提升手术成功率,并建立患者术前的信心,减少手术的危险性。 [0013] A further object of the present invention is to provide a surgical tool femoral head replacement, by the precise set of scan data produced by a computer, not only the mechanism of biomechanics, bone also reduce damage to the cutting area can be reduced and surgery and the degree of difficulty, but also with appropriate simulation software, the above data entry tool, for preoperative simulation deduction, the operator can first familiarize themselves with various conditions during surgery to improve the success rate of surgery, and the establishment of patient confidence before surgery to reduce the risk of surgery.

[0014] 为达成上述目的及功效,本发明所实行的技术手段包括:提供一种股骨头置换模块,其至少包括:一罩体及一人工股骨头,该罩体具有二相对延伸的一凹部与一向外凸伸的结合部,该凹部具有一基段及一顶段,该基段的内表面形状及尺寸以医疗用立体扫描仪器扫描患者股骨颈表面所获得,该顶段的内表面形状及尺寸,则以股骨颈表面周缘距中心线最短距离的各点所连接成的一切除封闭曲线为基准而向内成型,使该顶段可紧密套合于股骨的股骨颈上所对应形切出的凸部,且以该罩体的内表面与股骨颈表面形成紧密结合与定位,以提升其结合强度;而该人工股骨头具有一凹孔,可供套合于该罩体的结合部上并加以固定。 [0014] To achieve the object and effects of the present invention is practiced techniques comprising: providing a femoral head replacement module comprising at least: a femoral head and a cover, the cover having a recess extending in two opposite has been combined with the convex extending portion, the recessed portion having a base section and a top section inner surface shape and dimension of the base section of the neck to scan the surface of the medical three-dimensional scan of the patient obtained by the instrument, the shape of the inner surface of the top segment and size, the peripheral edge surface of the neck places each point of the shortest distance from the center line corresponds to all connected resection shaped closed curve inwards as a reference, so that the top segment can be closely nested on the neck of the femur a projecting portion, and is formed in an inner surface of the neck of the shell surface and positioned closely to enhance bonding strength; and the femoral head having a recessed hole, is fit for binding portion of the shell on and secured.

[0015] 本发明另提供一种股骨头置换手术工具,其至少包括:一裁切模套及一模刀,该裁切模套是一具有股骨颈表面形状的中空壳体,其并于中间部位剖切成一侧开口,于该裁切模套顶侧设有一沿股骨颈中心线延伸的导管,以供于股骨头上对应位置开设一中央孔,另于裁切模套中段横设一可供导引裁切位置的横槽道,该模刀设有一套管部及一裁切形刀部,于该裁切形刀部末端为一开口,于该开口的周缘设有锋利的刃部,且该刃部位置的尺寸及断面形状相符合于股骨颈表面周缘距中心线最短距离的各点所连接成的一切除封闭曲线,而该套管部套合于一设置在中央孔上的导引件以形成往复滑移的动作,利用该往复滑移的操作使该裁切开口上的刃部得以简易朝股骨颈欲置换部位进行形切操作。 [0015] The present invention further provides a hemiarthroplasty surgical tool, comprising at least: a die case and a cutting blade mold, the cutting die housing is a hollow housing having a surface shape of the femoral neck, and in which cut into the middle of the side of the opening, in the top side of the cutting die set is provided with a duct extending along the center line of the femoral neck, the femoral head for a position corresponding to a center hole defines, in the other cross-cutting die sets disposed in the middle a transverse channel for guiding the cutting position of the die cutter provided with a cutting part and a sleeve-shaped blade portion, to form the cutting blade portion end is an opening, in the opening peripheral edge with a sharp in addition to all the central aperture closed curve, which is fit into a sleeve section disposed edge portions, cross-sectional shape and size and position of the blade to conform to the surface of the peripheral edge of the neck from the center line of the shortest distance of each point connected to the a guide member to form a slip reciprocating motion by the reciprocating operation of the blade causes the slip on the cutting portion can be facilitated opening toward the neck portion to be replaced with shaped cutting operation performed. [0016] 由于采用上述结构,本发明可达到提升手术质量、延长使用寿命并降低手术危险性的功效。 [0016] Since the above-described configuration, the present invention can be achieved to enhance the quality of operation, extended service life and reduce the efficacy of the surgical risk.

附图说明 BRIEF DESCRIPTION

[0017] 下面结合附图与具体实施方式对本发明作进一步详细的说明: [0017] The accompanying drawings in conjunction with the following specific embodiments will be further detailed description of the present invention:

[0018] 图I是常见髋关节置换手术中常见的股骨头切除部位及人工股骨头装设结构示意图; [0018] Figure I is a common hip replacement femoral resection site common structural diagram of the femoral head and mounted;

[0019] 图2是本发明的股骨头初次裁切部位及其相关定位线条示意图; [0019] FIG. 2 is a schematic view of the femoral head of the present invention is first cut line portion and its associated targeting;

[0020] 图3是本发明的股骨颈周缘切削所需的切除封闭曲线及另一置换封闭曲线位置示意图; [0021] 图4是本发明的裁切模套立体结构图; [0020] FIG. 3 is a femoral cutting periphery of the invention required for removal of the closed curve and a schematic diagram of another replacement position closed curve; [0021] FIG. 4 is a perspective structural view cut die set of the present invention;

[0022] 图5是本发明于股骨头初次裁切后的裁切部位俯视图; [0022] FIG. 5 is a cut portion in the present invention after the initial cutting plan view of the femoral head;

[0023] 图6是本发明于股骨头初次裁切后的立体外观图; [0023] FIG. 6 is a rear femoral head of the present invention is a perspective external view of a first crop;

[0024] 图7是本发明的裁切模套结合于初次裁切后股骨端部的状态示意图; [0024] FIG. 7 is a diagram showing a state of the cut end of the femur portion of the die case of the present invention bind to the first cut;

[0025] 图8是本发明的模刀立体结构图; [0025] FIG. 8 is a perspective structural view mold blade of the present invention;

[0026] 图9是本发明的模刀侧视剖面图; [0026] FIG. 9 is a side sectional view of the mold blade according to the present invention;

[0027] 图10是本发明的模刀操作动作示意图; [0027] FIG. 10 is a schematic view of the operation of the operation mode of the present invention, the knife;

[0028] 图11是本发明经模刀切削后的股骨颈形成锥凸部的状态示意图; [0028] FIG. 11 is a view showing a state after the neck mold by a cutting blade of the present invention is a tapered protrusion;

[0029] 图12是本发明的人工股骨头组件立体结构图; [0029] FIG. 12 is a perspective structural view femoral head assembly of the present invention;

[0030] 图13是本发明的人工股骨头组装完成后立体外观图; [0030] FIG. 13 is a rear femoral head according to the present invention assembled perspective external view;

[0031] 图14是本发明的人工股骨头组合后侧视剖面图; [0031] FIG. 14 is a side cross-sectional view of the artificial femoral head combination of the invention;

[0032] 图15是本发明的人工股骨头组装完成后另一侧立体外观图; [0032] FIG. 15 is a rear femoral head according to the present invention assembled perspective external view of the other side;

[0033] 图16是本发明的实际应用示意图; [0033] FIG. 16 is a schematic view of practical application of the present invention;

[0034] 图17是本发明的人工股骨头组件另一较佳实施例图。 [0034] FIG. 17 is a femoral head assembly of the present invention, another preferred embodiment of FIG.

[0035] 其中,附图标记如下: [0035] wherein reference numerals are as follows:

[0036] I-裁切模套 314-贯孔 [0036] I- cutting die housing through hole 314-

[0037] 10-底段部位 315-定位凹部 [0037] 10- bottom segment 315 positioning recess portion

[0038] 11-侧开口 316-辅助定位组件 [0038] 11- assisted positioning component 316 side opening

[0039] 12-顶平面 32-定位组件 [0039] 12- 32- positioning assembly top plane

[0040] 13-导管 33、5_人工股骨头 [0040] 13- catheter 33,5_ femoral head

[0041] 131、211_ 导引孔 331-凹孔 [0041] 131,211_ guide hole recesses 331-

[0042] 132-钻孔设备 341-延伸固定部 [0042] 132- fixing portion extending drilling device 341-

[0043] 14、312_下侧缘 342-定位件 [0043] 14,312_ lower edge positioning member 342-

[0044] 15-定位孔 35-套座 [0044] Block 15 sets the positioning hole 35

[0045] 151-暂时定位组件 4、40、400_股骨 [0045] 151- temporarily positioning the femoral component 4,40,400_

[0046] 16-横槽道 41-股骨颈 [0046] 16- 41- Neck lateral channel

[0047] 161-纵槽道 42-股骨头 [0047] 42- 161- longitudinal channel femoral head

[0048] 2-模刀 43-中央孔 [0048] The central bore 43 2- die cutter

[0049] 21-套管部 44-凸部[0050] 22-裁切形刀部 51-座体 [0049] The sleeve portion 21 projecting portions 44- [0050] 22- cutting blade portion 51 shaped seat

[0051] 221-刃部 Cl-切除封闭曲线 [0051] 221- closed curve cutting edge portion Cl-

[0052] 23-导引件 C2-置换封闭曲线 [0052] 23- substituted C2- closed curve guide member

[0053] 3-人工股骨头组件 CL-中心线 [0053] 3- femoral head assembly centerline CL-

[0054] 31、34_罩体 L2-颈头界面线 [0054] 31,34_ head cover neck interface line L2-

[0055] 311-凹部 L3-初次裁切线[0056] 3111-基段 L4-切除线 [0055] 311- recess initial cutting line L3- [0056] 3111- yl resection line segment L4-

[0057] 3112-顶段 P2-裁切面 [0057] 3112- top segment cut surfaces P2-

[0058] 313-结合部 P3-初次裁切面 [0058] 313- initial cut surface binding portion P3-

具体实施方式 Detailed ways

[0059] 为使本发明的上述目的、功效及特征可获致更具体的了解,兹依下列附图说明如下: [0059] For the above objects, and features of the present invention, the efficacy of available actuator More particularly appreciated by reference hereby described as the following:

[0060] 参图2、图3所示,首先,于手术前需于股骨4的股骨头42与股骨颈41的弧线衔接部位取出一侧视适当的颈头接口线L2,并于该颈头界面线L2旁侧向股骨头42方向适当距离取一与该颈头接口线L2平行的初次裁切线L3,利用该颈头接口线L2或初次裁切线L3为基准,定出一股骨头42及股骨颈41的共同中心线CL,同时,利用医疗用立体(三维)扫描仪器(如:断层扫描CT或核磁共振MRI)测知该股骨颈41表面形状数据(数据),再由该中心线CL向股骨颈41周缘分别取出最短距离,以形成一最窄断面的切除封闭曲线Cl,另于该切除封闭曲线Cl以下的股骨颈41基部与股骨4间取出最大衔接断面,并以该断面的周缘线形成一置换封闭曲线C2。 [0060] Cf. FIG. 2, FIG. 3, first, before surgery the femoral head in the femur 4 for an arc of engagement portions 42 and 41 of the femoral neck side view taken appropriate interface cable head-neck L2, and in the neck 42 from the direction of the femoral head interface appropriate to take a line L2 parallel to the side of the neck and head interface first cutting line L2 line L3, with which the neck or head interface first cut line L2 line L3 as a reference, set a femoral head 42 and a common center line CL of the neck 41, while the use of a medical stereoscopic (three-dimensional) scan (eg: CT or magnetic resonance tomography MRI) sensing surface 41 of the neck shape data (the data), then by the center line CL taken to the peripheral edge 41 of the femoral neck, respectively the shortest distance, cut to form a closed curve Cl narrowest section of the femoral neck to the other closed curve Cl cut below the maximum engagement section 41 of the base taken with the femur 4 and to the cross-section forming a peripheral edge line permutation closed curve C2.

[0061] 参图4至图11所示,可知本发明的手术工具主要包括:一裁切模套I及一模刀2,该裁切模套I利用股骨颈41周缘的表面形状配合该初次裁切线L3的位置而形成其基本形状,其至少在对应上述切除封闭曲线Cl以下的底段部位10具有符合或接近股骨颈41外表面形状与尺寸的内表面,且于对应初次裁切线L3的部位设有一不小于上述初次裁切线L3所形成的股骨颈断面的顶平面12,并于中间部位可纵向剖切成一侧开口11,而于该顶平面12上设有一导管13,该导管13内设一沿中心线CL延伸的导引孔131,且该裁切模套I中段于顶平面12旁侧对应该颈头接口线L2位置设一横槽道16,并于该横槽道16中段设有一平行于中心线CL的纵槽道161 ;于裁切模套I表面更可布设复数定位孔15,且使裁切模套I底段部位10的边缘形成符合该置换封闭曲线C2形状的下侧缘14 (如图4所示);该模刀2以一套管 [0061] reference to FIGS. 11, it is understood the present invention is mainly surgical tool comprising: a cutting die and a die tool set I 2, I use the cutting surface shape of the die housing neck 41 weeks with the first edge the position of the cutting line L3 is formed by its basic shape, which corresponds to at least a portion of the bottom section of the above-described removal of the closed curve Cl 10 having an inner surface in line with or close to an outer surface of shapes and sizes of the femoral neck 41 and the corresponding first cut line L3 has a top portion is not less than the first cross-sectional plane of the femoral neck cut line L3 formed by 12, and the intermediate portion may be cut into the side of the longitudinal opening 11, and a conduit 13 is provided on the top plane 12, the conduit 13 equipped with the guide hole 131 along a center line CL extending, and the cutting die case I in the middle of the top plane 12 should be laterally necked head interface line L2 is provided a lateral position of channel 16 and channel 16 in the transverse the middle is provided with a longitudinal center line CL parallel to the channel 161; for cutting the surface of the die case I may be laid more complex positioning hole 15, and die housing so that the cutting edge portion of the bottom section I formed C2 10 conform to the shape of the closed curve replacing the lower edge 14 (FIG. 4); the molded to a tube cutter 2 21结合一裁切形刀部22所构成,其中该裁切形刀部22可设成具口大内小开口的内锥形式,于该裁切形刀部22周缘设有符合该切除封闭曲线Cl形状与尺寸且锋利的刃部221 (如图8、图9所示)。 21 in conjunction with a cut-shaped blade portion 22 is constituted, wherein the blade-shaped cutting portion 22 may be provided with an inner cone form to the size of the mouth opening 22 in the peripheral edge of the cutting blade-shaped portion is provided in line with the cutout closed curve Cl shape and size and a sharp edge portion 221 (FIG. 8, FIG. 9).

[0062] 使用时,先沿该初次裁切线L3裁切股骨头42,使股骨40于该裁切部位形成一初次裁切面P3 (如图5、图6所示),将该裁切模套I以侧开口11套合于股骨颈41外表,利用复数暂时定位组件151分别贯穿各定位孔15并嵌入股骨40内,可使该裁切模套I稳固地结合于股骨颈41周缘部位(如图7所示),此时,利用横槽道16的导引,可供手术者确认该颈头接口线L2的正确位置,同时可通过由纵槽道161刻划中心线CL的位置,且利用钻孔设备132由导管13的导引孔131伸入,可于该初次裁切面P3上对应中心线CL的位置钻设一中央孔43,再利用该横槽道16切除颈头接口线L2以上的股骨头。 [0062] In use, the first cut line L3 of the femoral head 42 along the first cut, the femur cutting portion 40 is formed in a first sectional plane P3 (FIG. 5, FIG. 6), the cutting die sets I side opening 11 in the outer sleeve 41 bonded to the neck, using a temporary positioning assembly 151 are a plurality of positioning holes 15 and through-fitted within the femur 40, the cutting die case I can firmly bonded to the peripheral edge portion of the femoral neck 41 (e.g. shown), At this time, the guide channel 16 of the cross, for operator confirmation that the necked head interface line L2 correct position, while the vertical channel 161 by the scribing position of the center line CL in FIG. 7, and using a drilling device 132 extends into the hole 131 by the guide catheter 13 can be cut to the initial position corresponding to P3 on the surface of the drill center line CL is provided with a central aperture 43, re-use of the channel 16 cross-cut lines L2 necked head interface above the femoral head.

[0063] 接着,再以一导引件23 (可为一条柱体)插置或锁接于该中央孔43,使该模刀2的套管部21套合于该导引件23上往外延伸出的部份,而可实施往复滑移的动作(如图10所示),通过由该裁切形刀部22上的刃部221得以切削该切除封闭曲线Cl上方的股骨头42边缘,以形成一具有中央孔43的下大上小锥状的凸部44,且该凸部44外部形状接近该股骨颈最窄断面形状(如图11所示)。 [0063] Next, and then to a guide member 23 (which may be a cylinder) or a locking element interposed in the central aperture 43, so that the sleeve portion 2 of the die blade 21 is fit into the guide member 23 outwardly extending portion, and the operation may be performed reciprocally slip (FIG. 10), by cutting the edge portion 221 is on the blade 22 of the cutting portion of the cutout-shaped femoral head above the closed edge curve Cl 42, to form a large hole having a central convex portion 43, a small tapered 44, and the outer shape of the protrusion 44 proximate the narrowest cross-sectional shape of the femoral neck (FIG. 11).

[0064] 再请参图12至图15,可知本发明的置换模块(即人工股骨头组件3)包括:一罩体31及一人工股骨头33 ;该罩体31具有二相对延伸的凹部311与一向外凸伸的结合部313,该凹部311与结合部313之间以一贯孔314相通,利用上述取得的股骨颈41表面形状资料,撷取该切除封闭曲线Cl与置换封闭曲线C2间的表面形状资料,可作为该凹部311 —基段3111的内表面形状数据,而该凹部311内的基段3111上方则为一顶段3112,该顶段3112的表面形状及尺寸即符合上述模刀2所形切而成,且位于切除封闭曲线Cl渐缩至颈头接口线L2之间接近股骨颈最窄断面的形状,而该罩体31底侧边缘则形成符合该置换封闭曲线C2形状的下侧缘312,同时于该凹部311边缘可依需要至少设有一定位凹孔315 (如图12所示)。 [0064] Referring again to FIGS. 12 to 15, it is understood replacement module of the invention (i.e., the femoral head component 3) comprising: a housing body 31 and a femoral head 33; the cover 31 has a concave portion 311 extending in two opposite It has been combined with the convex extending portion 313, the recess 311 and the through hole 314 combine to communication between the unit 313, using the obtained surface shape data 41 of the femoral neck, retrieving the cutout closed curve Cl and C2 displacement between a closed curve surface shape information, as 311 of the recess - the base section 3111 of the inner surface shape data, and compared with a section 3112 above the base section within the recess portion 311 3111, the surface shape and dimension of the top section 3112 that is consistent with the mold tool two shaped cut is made, and located at the closed curve cutting Cl tapers to near the narrowest section of the neck between the head interface L2 neck line shape, and the side edges of the bottom cover 31 conforms to the shape of the replacement C2 is formed of a closed curve the lower edges 312, 311 at the same time to follow the edge of the recess portion required at least one positioning recess hole 315 (see Figure 12).

[0065] 组装时,以该罩体31套合于股骨400具凸部44的置换端,此时,该凸部44恰可套入罩体31的顶端3112,且罩体31的基段3111可吻合地套合于切除封闭曲线Cl至置换封闭曲线C2间的股骨颈表面(如图13及图14所示),令该罩体31与股骨颈之间形成高贴合度的稳固结合,而后,再以一定位组件32 (螺钉)贯穿罩体31的贯孔314后伸(螺)入凸部44的中央孔43内,配合一辅助定位组件316贯穿定位凹孔315后伸(螺)入凸部44旁侧的股骨400内,可使该罩体31于股骨400端部形成稳固的定位,然后,再以一人工股骨头33以其预设的凹孔331套合于该罩体31的结合部313上并加以固定(如图15所示),则可完成此股骨头置换手术;而于实际应用时,于该人工股骨头33外周侧可套合一套座35,该套座35可包覆于人工股骨头33外并形成相对枢转的结合,使该人工股骨头组件3与套座35分别装设于人体髋 [0065] When assembled, the cover 31 to the displacer end engaging the protrusion portion 400 of the femur 44, in which case, the convex portion 44 can fit into the appropriate body 31 to the top cover 3112 and the base section 31 of the cover 3111 may be bonded to fit the sleeve to cut a closed curve Cl substitution closed curve C2 between the surface of the femoral neck (FIG. 13 and FIG. 14), enabling the shell to form a solid combination of high degree of fit between the femoral neck 31, then, then a positioning assembly 32 (screws) through the through hole cover 31 after 314 extension (screwed) into the projection of the center hole 44 of the inner 43, with a secondary positioning assembly 316 through the positioning recesses to 315 extension (spiro) 400 into the femur laterally projecting portion 44, which can form a solid shell 31 is positioned at an end portion of the femur 400, then, a femoral head 33 to its preset recesses 331 is fit into the cover and fixed (FIG. 15), can complete femoral replacement procedure on the bonding portion 31331; and in practice, on the outer peripheral side 33 of the femoral head 35 may be nested set of seats, the set of Block 35 may be coated on the outer and femoral head 33 is formed with a relative pivoting, that the femoral head component 3 and the holder 35 are mounted in sets of human hip 结的二相对活动部位,即可取代患者损坏的髋关结组织。 Junction two relatively movable parts, a patient can replace damaged tissue junction hip.

[0066] 本发明利用上述裁切模套I、模刀2等手术工具加以辅助,可有效确保需裁切、钻孔或切削等各部位的位置准确性,以提升组装的精度,进而改善手术后的髋关节的纠正效果,并提升手术质量,更适于配合计算机仿真软件,提供手术前的推演操作,令手术操作者可于术前进行模拟,达到降低手术误差、熟悉手术过程,进而确保手术成功率的优良设计;再者,由于罩体31紧密套合于股骨颈41顶端对应设置的凸部44上,并配合定位组件32、辅助定位组件316的固定,因此具有较佳的结合强度,以形成更稳固的结合状态,而该罩体31可与股骨400的相衔接端部之间形成最大的有效接触及置换面积,以分散该人工股骨头组件3传递至股骨颈41上的作用力,如此,不但可降低股骨400端部的各部压力、避免应力集中所造成的破坏,亦可大幅增强该置换部位的作用力承受 [0066] The present invention using the cutting die sets I, the knife die 2 and the like to be assisted surgical tool, which can effectively ensure the positional accuracy of each part and the like need to cutting, drilling or cutting, in order to improve assembling accuracy, thereby improving the operation after correcting the effect of hip joint, and improve the quality of surgery, with more suitable simulation software, provides deduction operation before surgery, so that the operator can be simulated before surgery, surgery to reduce the error, the familiar procedure, thus ensuring success rate is good design; Furthermore, since the cover 31 is fit tightly on top of the convex portion 41 provided to correspond to the femoral neck 44, and with the positioning assembly 32, the auxiliary positioning assembly 316 is fixed, and therefore have better bonding strength , to form a more stable coupling state, and the cover 31 may be formed in the maximum displacement and the effective contact area between the dovetail 400 and the end portion of the femur, the femoral head to disperse component 3 is transmitted to the action on the neck 41 force, thus, not only reduce the pressure in each part of the end portion 400 of the femur, to avoid damage caused by stress concentration, can significantly enhance the displacement force receiving portion 度,进而达到延长整体组件使用寿命的目的;同时相较于传统直接由股骨颈41的基部切除股骨头42的手术方式,本发明由于由股骨颈41上方的切除封闭曲线Cl切除股骨头42,而可保留该股骨颈41的切除封闭曲线Cl以下大部份结构,故而,若有罩体31或人工股骨头组件3的其它组件损坏而需再度手术时,则可再进行一次上述的传统手术(沿切除线L4切除股骨颈41),因此可有效延长股骨400的使用寿命。 Degrees, and thus to prolong the life of the whole assembly; while compared to conventional surgical resection directly by the base 42 of the neck 41 of the femoral head, resection of the present invention, since the closed curve CI of the neck 41 above the cut 42 of the femoral head, when the retention of the femoral resection may be Cl 41 closed curve structure of the majority, and therefore, the need to re-operation if the cover 31 or other components of the damage of the femoral head component 3 may be carried out once conventional surgery (femoral neck resection along the resection line L4 41), thus to extend the lifetime of the femur 400. [0067] 图17是本发明的人工股骨头组件另一较佳实施例图,由该图所示,可知本发明的另一人工股骨头组件30除了相同的人工股骨头33外,可具有另一种罩体34结构,该罩体34以罩体31的结构为基础,仅于其底侧边缘增设一片状的延伸固定部341,该延伸固定部341可供复数定位件342 (螺栓)贯穿而嵌(螺)入股骨400内,此种加强定位的结构,尤其适用于具有骨质疏松情形的患者,可使该罩体34可产生更佳的定位效果。 [0067] FIG. 17 is a femoral head assembly of the present invention, another preferred embodiment of FIG, from this figure, it is understood the other femoral head assembly of the present invention is the same except that 30 femoral head 33, but may have another one kind of shell structure 34, the cover body 34 to cover the structure 31 is based on the addition of its substrate side edges extending only a sheet-like fixing portion 341, the extending portion 341 for fixing a plurality of the positioning member 342 (bolt) through the insert 400 (spiro) shares bone, such reinforcing structure positioned, especially for patients with osteoporosis case, the shell 34 can be positioned to generate better results.

[0068] 综合以上所述,本发明的股骨头置换模块及其手术工具确可达到提升手术质量、 延长使用寿命并降低手术危险性的功效,但上述说明内容,仅为本发明的较佳实施例说明,举凡依本发明的技术手段与范畴所延伸的变化、修饰、改变或等效置换者,亦皆应落入本发明的专利申请范围内。 [0068] The synthesis of the above, the present invention is replacement of the femoral head module and a surgical tool can be achieved indeed improve the quality of surgery, reduce the risk and to extend the life of the efficacy of operation, but the contents of the above description, only the preferred embodiment of the present invention. embodiment described, the change under this covered the technical means and scope of the invention extends, modifications, changes or equivalent arthroplasty, Yi Jie fall within the scope of this invention patent application.

Claims (7)

1. 一种股骨头置换手术工具,其特征在于:其至少包括: 一模刀,设有一套管部及一裁切形刀部,于该裁切形刀部末端为一开口,于该开口的周缘设有锋利的刃部,且该刃部位置的尺寸及断面形状相符合于股骨颈表面周缘距中心线最短距离的各点所连接成的一切除封闭曲线。 A femoral head replacement surgical tool, characterized in that: it comprises at least: a die cutter provided with a cutting part and a sleeve-shaped blade portion, to form the cutting blade portion end is an opening, in the opening the peripheral edge portion provided with a sharp edge, and the size and position of the cross-sectional shape of the blade portion to conform to the surface of the peripheral edge of the neck from the respective points of the shortest distance to the center line connecting all other closed curve.
2.如权利要求I所述的股骨头置换手术工具,其特征在于:所述裁切形刀部呈一口大内小的形状。 I said femoral head as claimed in claim 2. The tool replacement operation, characterized in that: said cutter blade-shaped portion has a smaller shape Ouchi.
3.如权利要求I或2所述的股骨头置换手术工具,其特征在于:所述套管部套合于一设置在中央孔上的导引件以形成往复滑移的动作。 I femoral or claim 2 replacement surgical tool, characterized in that: said sleeve portion is fit into a guide member disposed on the central hole to form a slip reciprocating motion.
4.如权利要求I或2所述的股骨头置换手术工具,其特征在于:还包括有一裁切模套,是一具有股骨颈表面形状的中空壳体,其并于中间部位剖切成一侧开口,于该裁切模套顶侧设有一沿股骨颈中心线延伸的导管,以供于股骨头上对应位置设定一中央孔,另于裁切模套中段横设一可供导引裁切位置的横槽道。 4. I claim the femoral head or replacement surgical tool of claim 2, characterized in that: further comprising a cutting die housing, a hollow housing having a surface shape of the femoral neck, and at its intermediate portion cut into side of the opening at the top side of the cutting die set is provided with a duct extending along the center line of the femoral neck, for a central aperture corresponding position on the femoral head, the other for cutting the middle sleeve mold for a horizontal guide provided lateral channel lead cutting position.
5.如权利要求3所述的股骨头置换手术工具,其特征在于:还包括有一裁切模套,是一具有股骨颈表面形状的中空壳体,其并于中间部位剖切成一侧开口,于该裁切模套顶侧设有一沿股骨颈中心线延伸的导管,以供于股骨头上对应位置设定一中央孔,另于裁切模套中段横设一可供导引裁切位置的横槽道。 5. The femoral head according to claim 3, wherein the tool replacement operation, characterized by: further comprising a cutting die housing, a hollow housing having a surface shape of the femoral neck, and which cut into the side of the intermediate portion an opening in the top side of the cutting die set is provided with a duct extending along the center line of the femoral neck, the femoral head for a corresponding position in a central bore in the other cross-cutting die middle sleeve is provided for guiding a cutting the channel cross-cutting position.
6.如权利要求4所述的股骨头置换手术工具,其特征在于:所述裁切模套表面设有至少一定位孔,可供一暂时定位组件贯穿并嵌入股骨上的对应部位。 4 femoral head as claimed in claim 6. The surgical tool replacement, characterized in that: said cutting surface of the die case at least one positioning hole, for a provisional fixing assembly on the corresponding parts throughout and embedded in the femur.
7.如权利要求5所述的股骨头置换手术工具,其特征在于:所述裁切模套表面设有至少一定位孔,可供一暂时定位组件贯穿并嵌入股骨上的对应部位。 7. A femoral head as claimed in claim 5, wherein the tool replacement operation, characterized in that: said cutting surface of the die case at least one positioning hole, for a provisional fixing assembly on the corresponding parts throughout and embedded in the femur.
CN2012102097939A 2008-12-30 2008-12-30 Operation tool for femoral head replacement CN102697549A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2193724Y (en) * 1994-09-23 1995-04-05 王守才 Intervertebral disc operating knife
CN2519658Y (en) * 2001-12-29 2002-11-06 上海复升医疗器械有限公司 Apparatus for installing femur neck protector
CN1187024C (en) * 2003-08-19 2005-02-02 钱毅维 Buckle with femur neck protection means
EP1588668A1 (en) * 2004-04-20 2005-10-26 Finsbury (Development) Limited Alignment guide for use in femoral head surgery
CN1882285A (en) * 2003-11-20 2006-12-20 瑞特医疗技术公司 Guide clamp for guiding placement of a guide wire in a femur
GB2442441A (en) * 2006-10-03 2008-04-09 Biomet Uk Ltd Surgical instrument

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2193724Y (en) * 1994-09-23 1995-04-05 王守才 Intervertebral disc operating knife
CN2519658Y (en) * 2001-12-29 2002-11-06 上海复升医疗器械有限公司 Apparatus for installing femur neck protector
CN1187024C (en) * 2003-08-19 2005-02-02 钱毅维 Buckle with femur neck protection means
CN1882285A (en) * 2003-11-20 2006-12-20 瑞特医疗技术公司 Guide clamp for guiding placement of a guide wire in a femur
EP1588668A1 (en) * 2004-04-20 2005-10-26 Finsbury (Development) Limited Alignment guide for use in femoral head surgery
GB2442441A (en) * 2006-10-03 2008-04-09 Biomet Uk Ltd Surgical instrument

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