技术领域technical field
本实用新型涉及一种基于3D打印技术的组配式髋臼假体定位装置。The utility model relates to an assembled acetabular prosthesis positioning device based on 3D printing technology.
背景技术Background technique
发育性髋关节发育不良(Development Dysplasia of Hip,DDH)、股骨头坏死、髋关节原发性骨性关节炎是目前关节外科进行髋关节置换的三大主要病因，而这些疾病会导致患者髋臼结构的破坏变异，出现假臼、髋臼变陡变浅、髋臼覆盖股骨头不良、髋臼周围骨缺损、严重骨赘增生等等，导致髋臼正常解剖位置和结构发生变化。髋臼变异使正常关节生物力学稳定性的解剖学基础发生改变,股骨头易向外侧移位,继发半脱位，导致股骨头负重面积减小，单位面积内的压强相应增加，关节表面的压力，拉力和剪切力均显著增加，最后发展为严重的继发性或原发性骨性关节炎，需要接受全髋关节置换(Total HipArthroplasty,THA)。Developmental dysplasia of the hip (Development Dysplasia of Hip, DDH), osteonecrosis of the femoral head, and primary osteoarthritis of the hip joint are the three major causes of hip replacement in joint surgery, and these diseases can lead to acetabular Structural destruction and variation, false acetabulum, steep and shallow acetabulum, poor coverage of the femoral head by the acetabulum, bone defect around the acetabulum, severe osteophyte hyperplasia, etc., lead to changes in the normal anatomical position and structure of the acetabulum. Acetabular variation changes the anatomical basis of normal joint biomechanical stability, the femoral head tends to shift laterally, and secondary subluxation results in a decrease in the load-bearing area of the femoral head, a corresponding increase in the pressure per unit area, and a corresponding increase in the pressure on the articular surface. , tensile and shearing forces were significantly increased, and finally developed into severe secondary or primary osteoarthritis, requiring total hip replacement (Total HipArthroplasty, THA).
全髋关节置换是采取手术的方法，将正常的髋臼、股骨头、股骨颈等髋关节各组成部分替换为人工材料。Total hip replacement is a surgical method to replace the normal acetabulum, femoral head, femoral neck and other components of the hip joint with artificial materials.
人体骨骼的结构遵循复杂的力线系统，以承受全身的重量而不塌陷。正确精准地放置各个人工假体材料一直是骨科医师的一大挑战。其中，髋臼放置的难点主要在于能够根据患者个体畸形髋臼的骨量分布特点，个性化地精准植入臼杯假体，确保选用合适大小的臼杯型号；放置的位置、角度、深度合适，臼杯开口方向在外展角35～45度、前倾角15～25度这一公认的安全角度范围内，并获得宿主骨对假体75％以上的包容，使患者能够尽早下地活动和获取良好的近期和远期的假体稳定性，并降低术后关节脱位、甚至二次翻修手术的风险。The structure of the human skeleton follows a complex system of force lines to bear the weight of the whole body without collapsing. Correct and precise placement of individual prosthetic materials has always been a major challenge for orthopedic surgeons. Among them, the difficulty of acetabular placement mainly lies in the ability to individually and accurately implant the acetabular prosthesis according to the bone mass distribution characteristics of the individual deformed acetabulum to ensure the selection of the appropriate size of the acetabular cup model; the placement position, angle, and depth are appropriate The opening direction of the acetabular cup is within the recognized safe angle range of 35-45 degrees of abduction angle and 15-25 degrees of anteversion angle, and more than 75% tolerance of the prosthesis by the host bone is obtained, so that the patient can get out of the ground as soon as possible and obtain good results. The short-term and long-term stability of the prosthesis can be improved, and the risk of postoperative joint dislocation and even secondary revision surgery can be reduced.
目前普遍采用的臼杯植入的定位方法主要依靠术中充分的显露，从小直径开始逐渐扩大锉磨髋臼，在锉磨过程中根据术者经验对髋臼周围的剩余骨量判断，来决定合适的锉磨深度，假体大小和旋转中心的位置，并根据主观标准判断臼杯开口的方向。The currently widely used positioning method for acetabular cup implantation mainly relies on sufficient exposure during the operation, gradually expanding the acetabulum from a small diameter, and judging the remaining bone volume around the acetabulum based on the experience of the surgeon during the rasping process. Appropriate filing depth, component size and center of rotation location, and cup opening orientation based on subjective criteria.
现有技术则主要可分为三大类。其一，依赖骨盆等远处骨性标志，用辅助工具机械定位，以确定髋臼杯的正确位置和角度(如CN103153240B、CN102525692B、CN203609550U、CN103705292A、CN105012053A、CN204260873U、CN204931905U)；其二，依赖原髋臼周围的骨性标志，用辅助工具定位，确定髋臼杯的正确位置和角度(如CN2548600Y、CN2548600Y、CN202751472U、CN105559951A、CN205569020U、CN205866800U)；其三，在髋臼杯中置入传感器或定位仪，接收信号后明确臼杯的准确位置(如CN104244860A、CN105246433A、CN204106119U、CN202751472U)。The prior art can be mainly divided into three categories. One, rely on distant bony landmarks such as the pelvis, and use auxiliary tool mechanical positioning to determine the correct position and angle of the acetabular cup (such as CN103153240B, CN102525692B, CN203609550U, CN103705292A, CN105012053A, CN204260873U, CN204931905U); The bony landmarks around the acetabulum are positioned with auxiliary tools to determine the correct position and angle of the acetabular cup (such as CN2548600Y, CN2548600Y, CN202751472U, CN105559951A, CN205569020U, CN205866800U); third, place sensors or position in the acetabular cup After receiving the signal, the accurate position of the acetabular cup is determined (such as CN104244860A, CN105246433A, CN204106119U, CN202751472U).
上述方式的缺陷在于：传统技术完全依靠医生主观判断，使假体安装质量得不到保证，术后关节功能参差不齐，假体松动等并发症较多。The disadvantages of the above methods are: the traditional technology completely relies on the subjective judgment of the doctor, so that the quality of the prosthesis installation cannot be guaranteed, the postoperative joint function is uneven, and there are many complications such as prosthesis loosening.
第一种现有技术依赖较大的机械定位工具，在手术室中搬运、灭菌这种较大的工具十分麻烦，稍有不慎将增加手术感染的风险。The first type of prior art relies on relatively large mechanical positioning tools. It is very troublesome to carry and sterilize such large tools in the operating room, and a little carelessness will increase the risk of surgical infection.
第一、二种现有技术均只考虑到髋臼杯放置的位置和角度，却忽略了假体应当植入的深度；第二种现有技术依赖髋臼周围骨骼标志完整的前提，如果髋臼损坏严重则定位不可靠。The first and second existing technologies only consider the position and angle of the acetabular cup, but ignore the depth of the prosthesis; the second existing technology relies on the premise of complete bone landmarks around the acetabulum. If the acetabular damage is severe, the positioning is unreliable.
第三种现有技术利用定位仪、传感器等技术手段，使假体和工具成本大幅度上升，进一步提高了昂贵的手术费用。The third kind of existing technology utilizes technical means such as locators, sensors, etc., so that the cost of prostheses and tools is greatly increased, and the cost of expensive operations is further increased.
所有的现有技术均没有考虑到患者个体骨盆的骨量特点，术者在术中也难以精确判断，难以选取合适的臼杯型号和确定需补充的骨量，因而出现臼杯植入偏差的潜在风险较高，从而会增加假体-骨界面早期松动，髋关节脱位等潜在并发症风险；对于少于75％的骨性覆盖的臼杯植入，往往还需要大块结构性植骨，覆盖外露的假体部分，假体本身也难以获得可靠的初始稳定。All the existing technologies do not take into account the bone mass characteristics of the individual pelvis of the patient, and it is also difficult for the surgeon to accurately judge during the operation, and it is difficult to select the appropriate type of acetabular cup and determine the amount of bone that needs to be supplemented. The potential risk is high, which will increase the risk of potential complications such as early loosening of the prosthesis-bone interface and hip dislocation; for implantation of acetabular cups with less than 75% bony coverage, large structural bone grafts are often required, Covering the exposed part of the prosthesis, the prosthesis itself is also difficult to obtain reliable initial stability.
因此，如何提供一种可精准确定植入角度与深度，体积小巧，消毒方便，成本低廉的组配式髋臼假体定位装置成为了业界需要解决的问题。Therefore, how to provide a modular acetabular prosthesis positioning device that can accurately determine the implantation angle and depth, is small in size, convenient to sterilize, and low in cost has become a problem to be solved in the industry.
发明内容Contents of the invention
针对现有技术的缺点，本实用新型的目的是提供一种基于3D打印技术的组配式髋臼假体定位装置，其可精准确定植入角度与深度，体积小巧，消毒方便，成本低廉。In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular acetabular prosthesis positioning device based on 3D printing technology, which can accurately determine the implantation angle and depth, and is small in size, convenient to sterilize, and low in cost.
为了实现上述目的，本实用新型提供了一种基于3D打印技术的组配式髋臼假体定位装置，组配式髋臼假体定位装置包括：In order to achieve the above purpose, the utility model provides a modular acetabular prosthesis positioning device based on 3D printing technology. The modular acetabular prosthesis positioning device includes:
用于确定髋臼假体放置角度的导向钉，导向钉为圆柱状；导向钉包括中心导向钉和若干外围导向钉；A guide screw used to determine the placement angle of the acetabular prosthesis, the guide screw is cylindrical; the guide screw includes a central guide screw and several peripheral guide screws;
角度确定机构，角度确定机构设有角度定位孔，角度定位孔的数目与导向钉一致；导向钉穿过角度定位孔；Angle determination mechanism, the angle determination mechanism is provided with angle positioning holes, the number of angle positioning holes is consistent with the guide nails; the guide nails pass through the angle positioning holes;
深度确定机构，深度确定机构设有深度定位孔，深度定位孔的数目与外围导向钉一致；外围导向钉穿过深度定位孔；Depth determination mechanism, the depth determination mechanism is provided with depth positioning holes, the number of depth positioning holes is consistent with the peripheral guide nails; the peripheral guide nails pass through the depth positioning holes;
可调式环抱器，可调式环抱器与深度确定机构固定连接；可调式环抱器包括夹具和连接支架。The adjustable embracing device is fixedly connected with the depth determination mechanism; the adjustable embracing device includes a clamp and a connecting bracket.
本实用新型中，所述外围导向钉的数目优选为3个。In the present invention, the number of the peripheral guide nails is preferably three.
本实用新型中，导向钉的角度即为髋臼假体放置的准确角度。In the utility model, the angle of the guide nail is the exact angle at which the acetabular prosthesis is placed.
本实用新型中，在中心导向钉的辅助下放置角度确定机构，角度确定机构可确保外围导向钉的角度与中心导向钉完全一致。In the utility model, an angle determination mechanism is placed with the assistance of the central guide nail, and the angle determination mechanism can ensure that the angle of the peripheral guide nails is completely consistent with that of the central guide nail.
本实用新型中，深度确定机构与外围导向钉在使用时组装为一体。In the utility model, the depth determination mechanism and the peripheral guide nails are assembled into one body during use.
本实用新型中，连接支架为可调部件。In the utility model, the connecting bracket is an adjustable component.
本实用新型中，角度确定机构、深度确定机构和可调式环抱器组合使用，可确保髋臼假体的置入角度。In the utility model, the combination of the angle determining mechanism, the depth determining mechanism and the adjustable embracing device can ensure the insertion angle of the acetabular prosthesis.
本实用新型中，外围导向钉、深度确定机构和可调式环抱器C组合使用，可辅助确定髋臼磨锉的角度及深度。In the utility model, the peripheral guide nails, the depth determining mechanism and the adjustable embracing device C are used in combination to assist in determining the angle and depth of the acetabular rasp.
本实用新型中，可调式环抱器与深度确定机构的连接方式可为例如插销。In the present invention, the connection mode between the adjustable embracing device and the depth determining mechanism may be, for example, a bolt.
本实用新型可确定患者个体畸形髋臼的骨量分布特点，个性化精准植入髋臼假体；确定髋臼假体放置的位置、角度、深度；减小辅助模块的体积；降低髋臼假体的成本。The utility model can determine the bone mass distribution characteristics of the individual deformed acetabulum, and implant the acetabular prosthesis in a personalized and precise manner; determine the position, angle and depth of the acetabular prosthesis; reduce the volume of the auxiliary module; reduce the acetabular prosthesis. body cost.
根据本实用新型另一具体实施方式，导向钉互相平行。According to another specific embodiment of the present utility model, the guide nails are parallel to each other.
根据本实用新型另一具体实施方式，深度确定机构进一步包括两个长度调节部件，两个长度调节部件分别位于深度确定机构两侧；长度调节部件的长度可根据需要进行个性化调整。According to another specific embodiment of the present invention, the depth determining mechanism further includes two length adjusting components, and the two length adjusting components are respectively located on both sides of the depth determining mechanism; the length of the length adjusting components can be adjusted individually as required.
根据本实用新型另一具体实施方式，连接支架位于长度调节部件上方，且与长度调节部件固定连接。According to another specific embodiment of the present invention, the connecting bracket is located above the length adjusting component and is fixedly connected with the length adjusting component.
根据本实用新型另一具体实施方式，组配式髋臼假体定位装置进一步包括用于确定中心导向钉放置角度的3D打印模型，3D打印模型包括匹配面；匹配面与患者骨盆表面相吻合。According to another specific embodiment of the utility model, the modular acetabular prosthesis positioning device further includes a 3D printing model for determining the placement angle of the central guide screw, and the 3D printing model includes a matching surface; the matching surface coincides with the surface of the patient's pelvis.
本方案中，3D打印模型可精确定位正常生理髋臼中心点，并沿外展45°、前倾15°置入中心导向钉；角度确定机构可根据3D打印模型确定的髋臼中心来进一步确定髋臼边缘，避免了髋臼损毁过度时骨性标志不明显的难题；深度确定机构可根据3D打印模型确定的周围骨量及髋臼形状，通过确定长度调节部件的高度，以确定髋臼假体的置入深度。In this plan, the 3D printed model can accurately locate the center point of the normal physiological acetabulum, and place the center guide screw along the abduction of 45° and anteversion of 15°; the angle determination mechanism can be further determined according to the acetabular center determined by the 3D printed model The edge of the acetabulum avoids the problem that the bony landmarks are not obvious when the acetabular damage is excessive; the depth determination mechanism can determine the height of the acetabular false through determining the height of the length adjustment part according to the surrounding bone volume and acetabular shape determined by the 3D printing model. body insertion depth.
根据本实用新型另一具体实施方式，组配式髋臼假体定位装置进一步包括用于髋臼磨挫的手柄，手柄包括柄杆和柄头。According to another specific embodiment of the present invention, the assembled acetabular prosthesis positioning device further includes a handle for acetabular grinding, and the handle includes a handle rod and a crown.
根据本实用新型另一具体实施方式，柄杆与柄头固定连接；柄杆上设有深度标志。According to another specific embodiment of the present invention, the handle is fixedly connected with the crown; the handle is provided with a depth mark.
根据本实用新型另一具体实施方式，柄杆穿过夹具。According to another specific embodiment of the utility model, the handle rod passes through the clamp.
根据本实用新型另一具体实施方式，柄头为半球形，柄头位于夹具下方。According to another specific embodiment of the present invention, the crown is hemispherical, and the crown is located below the clamp.
根据本实用新型另一具体实施方式，中心导向钉的轴线与柄杆的轴线重合或平行。According to another specific embodiment of the present invention, the axis of the central guide nail coincides with or is parallel to the axis of the handle.
本实用新型的操作方法如下：The operation method of the present utility model is as follows:
在进行手术前，需完善影像学评估(CT检查)并三维重建骨盆，精确模拟髋臼假体外展45°、前倾15°的安放位置，并标记组配式髋臼假体定位装置在髋臼上缘的固定点。Before the operation, it is necessary to complete the imaging evaluation (CT examination) and three-dimensional reconstruction of the pelvis, accurately simulate the placement position of the acetabular prosthesis at 45° abduction and 15° anteversion, and mark the location of the modular acetabular prosthesis positioning device. Fixation point on the upper edge of the acetabulum.
在持续硬膜外麻醉联合蛛网膜下腔阻滞麻醉的条件下，患者取健侧卧位。采用髋关节后外侧入路，于小转子上1cm处斜切股骨颈，取出股骨头，充分显露髋臼，注意保护坐骨神经；切除髋臼盂唇、部分关节囊以及过度增生骨赘。Under the conditions of continuous epidural anesthesia combined with subarachnoid block anesthesia, the patient was placed in the decubitus position on the healthy side. The femoral neck was obliquely cut at 1 cm above the lesser trochanter through the posterolateral approach of the hip joint, and the femoral head was removed to fully expose the acetabulum and protect the sciatic nerve; the acetabular labrum, part of the joint capsule, and hypertrophic osteophytes were removed.
髋臼假体植入角度和深度的确定方法为：The method for determining the angle and depth of acetabular prosthesis implantation is:
1、角度确定：通过术前3D打印模型，精确定位正常生理髋臼中心点，沿外展45°、前倾15°置入中心导向钉，中心导向钉的角度即为髋臼假体放置的准确角度；1. Determine the angle: through the preoperative 3D printing model, accurately locate the center point of the normal physiological acetabulum, and place the center guide screw along the abduction of 45° and anteversion of 15°. The angle of the center guide screw is the position of the acetabular prosthesis. exact angle;
在中心导向钉的辅助下，放置角度确定机构，并于髋臼周边置入外围导向钉，角度确定机构可确保外围导向钉的角度与中心导向钉完全一致；With the aid of the central guide screw, place the angle determination mechanism and place the peripheral guide screw around the acetabulum. The angle determination mechanism can ensure that the angle of the peripheral guide screw is exactly the same as that of the central guide screw;
移除角度确定机构；Remove the angle determination mechanism;
2、深度确定：术前于深度确定机构标记正常生理性髋臼深度，术中与外围导向钉组装为一体，作为髋臼磨挫深度的基准；2. Depth determination: Mark the normal physiological acetabular depth with the depth determination mechanism before operation, and assemble it with peripheral guide nails during the operation as a benchmark for the depth of acetabular wear;
3、组配式髋臼假体定位装置的应用：可调式环抱器与套入外围导向钉的深度确定机构共同组配成髋臼磨挫定向装置；3. The application of the assembled acetabular prosthesis positioning device: the adjustable embracing device and the depth determination mechanism inserted into the peripheral guide nails are combined to form an acetabular grinding orienting device;
移除中心导向钉；Remove the center guide pin;
通过可调式环抱器固定手柄，依据外围导向钉的角度、深度确定机构及手柄的深度标志进行髋臼磨挫，确保假体植入的角度和深度接近生理性髋臼；The handle is fixed by an adjustable embracing device, and the acetabular grinding is performed according to the angle of the peripheral guide nail, the depth determination mechanism and the depth mark of the handle to ensure that the angle and depth of the prosthesis are close to the physiological acetabulum;
4、磨锉完成后，即可安装固定髋臼假体。4. After finishing the file, the acetabular prosthesis can be installed and fixed.
与现有技术相比，本实用新型具备如下有益效果：Compared with the prior art, the utility model has the following beneficial effects:
1、确定骨盆髋臼周围骨量、基于3D打印技术确定髋臼中点位置和角度。1. Determine the bone mass around the acetabulum of the pelvis, and determine the position and angle of the midpoint of the acetabulum based on 3D printing technology.
2、利用角度确定机构、深度确定机构和可调式环抱器，精准确定髋臼假体植入角度。2. Using the angle determination mechanism, depth determination mechanism and adjustable embracing device to accurately determine the implantation angle of the acetabular prosthesis.
3、根据三维重建数据，设定深度确定机构的可调节深度，在术中确保髋臼假体的植入深度。3. According to the three-dimensional reconstruction data, set the adjustable depth of the depth determination mechanism to ensure the implantation depth of the acetabular prosthesis during the operation.
4、体积小巧，消毒方便，成本低廉。4. Small size, convenient disinfection and low cost.
下面结合附图对本实用新型作进一步的详细说明。Below in conjunction with accompanying drawing, the utility model is described in further detail.
附图说明Description of drawings
图1是实施例1的3D打印模型的结构示意图；Fig. 1 is the structural representation of the 3D printing model of embodiment 1;
图2是实施例1的导向钉和角度确定机构的结构示意图；Fig. 2 is a schematic structural view of the guide nail and the angle determination mechanism of embodiment 1;
图3是实施例1的组配式髋臼假体定位装置的使用状态示意图。Fig. 3 is a schematic view of the use state of the assembled acetabular prosthesis positioning device of the first embodiment.
具体实施方式Detailed ways
实施例1Example 1
本实施例提供了一种基于3D打印技术的组配式髋臼假体定位装置，如图1-3所示，其包括导向钉1、角度确定机构2、深度确定机构3、可调式环抱器4、3D打印模型5和手柄6。This embodiment provides a modular acetabular prosthesis positioning device based on 3D printing technology, as shown in Figure 1-3, which includes a guide nail 1, an angle determination mechanism 2, a depth determination mechanism 3, and an adjustable embracing device 4. 3D printing model 5 and handle 6.
其中，导向钉1为圆柱状，其包括中心导向钉101和3个外围导向钉102；所述导向钉1均互相平行。Wherein, the guide nail 1 is cylindrical and includes a central guide nail 101 and three peripheral guide nails 102; the guide nails 1 are all parallel to each other.
角度确定机构2设有4个角度定位孔201，导向钉1穿过角度定位孔201。The angle determining mechanism 2 is provided with four angle positioning holes 201 , and the guide nail 1 passes through the angle positioning holes 201 .
深度确定机构3包括3个深度定位孔301和2个长度调节部件302；外围导向钉102穿过深度定位孔301；长度调节部件302分别位于深度确定机构3两侧，其长度可根据需要进行个性化调整。The depth determination mechanism 3 includes 3 depth positioning holes 301 and 2 length adjustment parts 302; the peripheral guide nails 102 pass through the depth positioning holes 301; the length adjustment parts 302 are respectively located on both sides of the depth determination mechanism 3, and its length can be customized according to needs. adjustment.
可调式环抱器4与深度确定机构3固定连接，其包括夹具401和连接支架402；连接支架402为可调部件；连接支架402位于长度调节部件302上方，且与长度调节部件302以插销方式固定连接。The adjustable embracing device 4 is fixedly connected with the depth determination mechanism 3, which includes a clamp 401 and a connecting bracket 402; the connecting bracket 402 is an adjustable component; the connecting bracket 402 is located above the length adjusting part 302, and is fixed with the length adjusting part 302 by a bolt connect.
3D打印模型5包括匹配面501，匹配面501与患者骨盆表面相吻合；3D打印模型5可精确定位正常生理髋臼中心点，并沿外展45°、前倾15°置入中心导向钉101。The 3D printing model 5 includes a matching surface 501, and the matching surface 501 coincides with the surface of the patient's pelvis; the 3D printing model 5 can accurately locate the center point of the normal physiological acetabulum, and insert the central guide nail 101 along the abduction of 45° and anteversion of 15° .
手柄6包括柄杆601和柄头602；柄杆601与柄头602固定连接；柄杆601上设有深度标志603；柄杆601穿过夹具401；柄头602为半球形，柄头602位于夹具401下方；中心导向钉101的轴线与柄杆601的轴线重合。The handle 6 includes a handle 601 and a handle 602; the handle 601 is fixedly connected to the handle 602; the handle 601 is provided with a depth mark 603; the handle 601 passes through the clamp 401; the handle 602 is hemispherical, and the handle 602 is located at Below the clamp 401 ; the axis of the central guide nail 101 coincides with the axis of the handle rod 601 .
虽然本实用新型以较佳实施例揭露如上，但并非用以限定本实用新型实施的范围。任何本领域的普通技术人员，在不脱离本实用新型的发明范围内，当可作些许的改进，即凡是依照本实用新型所做的同等改进，应为本实用新型的范围所涵盖。Although the preferred embodiments of the present invention are disclosed above, they are not intended to limit the implementation scope of the present invention. Any person of ordinary skill in the art, without departing from the scope of the invention of the utility model, should make some improvements, that is, all equivalent improvements made according to the utility model should be covered by the scope of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663903.7UCN207785320U (en) | 2017-06-08 | 2017-06-08 | Assembly type acetabulum prosthesis positioning device based on 3D printing technology |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663903.7UCN207785320U (en) | 2017-06-08 | 2017-06-08 | Assembly type acetabulum prosthesis positioning device based on 3D printing technology |
| Publication Number | Publication Date |
|---|---|
| CN207785320Utrue CN207785320U (en) | 2018-08-31 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720663903.7UActiveCN207785320U (en) | 2017-06-08 | 2017-06-08 | Assembly type acetabulum prosthesis positioning device based on 3D printing technology |
| Country | Link |
|---|---|
| CN (1) | CN207785320U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080607A (en)* | 2017-06-08 | 2017-08-22 | 中山大学附属第医院 | Assembly type acetabulum prosthesis positioning device based on 3D printing technology |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080607A (en)* | 2017-06-08 | 2017-08-22 | 中山大学附属第医院 | Assembly type acetabulum prosthesis positioning device based on 3D printing technology |
| CN107080607B (en)* | 2017-06-08 | 2019-07-05 | 中山大学附属第一医院 | A modular acetabular prosthesis positioning device based on 3D printing technology |
| Publication | Publication Date | Title |
|---|---|---|
| US9693879B2 (en) | Alignment guide with spirit level | |
| CA2815654C (en) | System and method for assisting with attachment of a stock implant to a patient tissue | |
| US9095448B2 (en) | Method of using an alignment guide | |
| US6607487B2 (en) | Ultrasound image guided acetabular implant orientation during total hip replacement | |
| US6117138A (en) | Instruments for forming bony cavity for implantable femoral, hip prosthesis | |
| CN107080607B (en) | A modular acetabular prosthesis positioning device based on 3D printing technology | |
| US9119722B1 (en) | Measurement and placement techniques in hip resurfacing and the like | |
| US20240091030A1 (en) | Femoral trialling kit and assembly | |
| AU2012253956A1 (en) | Patient specific instruments | |
| WO2009076293A2 (en) | Prosthetic device and method for implanting the prosthetic device | |
| WO2012024288A2 (en) | Patient-matched acetabular alignment tool | |
| EP2836135B1 (en) | Device for use in facilitating alignment of an acetabular component | |
| EP2866703B1 (en) | A referencing apparatus and associated methods | |
| US20200121476A1 (en) | Trial neck | |
| CN207785320U (en) | Assembly type acetabulum prosthesis positioning device based on 3D printing technology | |
| WO2019038199A1 (en) | Prosthetic acetabular cup inserter and impactor | |
| WO2019015962A1 (en) | Apparatus and method for hip surgery | |
| AU2018253328A1 (en) | Orientation guide | |
| Haaker et al. | Cup and offset navigation with OrthoPilot system | |
| CN102525692A (en) | Implantation angle collimator for acetabulum prostheses | |
| GB2564718A (en) | Apparatus and method for hip surgery |
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |