CN101884542B - Total knee replacement pressure balance measuring system - Google Patents

Total knee replacement pressure balance measuring system Download PDF

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Publication number
CN101884542B
CN101884542B CN 201010034328 CN201010034328A CN101884542B CN 101884542 B CN101884542 B CN 101884542B CN 201010034328 CN201010034328 CN 201010034328 CN 201010034328 A CN201010034328 A CN 201010034328A CN 101884542 B CN101884542 B CN 101884542B
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pressure
signal
artificial knee
knee joint
force
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CN 201010034328
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Chinese (zh)
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CN101884542A (en
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陈虹
刘鸣
张春
唐竞
周一新
王志华
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清华大学
周一新
唐竞
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Abstract

本发明涉及一种人工膝关节置换术压力平衡测量系统,该系统包括压力获取装置和信号接收显示装置。 The present invention relates to an artificial knee joint replacement surgery pressure equalization measurement system comprising a pressure acquiring means and the display means receiving a signal. 该压力获取装置的形状、尺寸与人工膝关节假体中的胫骨垫片的形状、尺寸相同,且在医生手术过程中将其置于患者膝关节处以获取压力信号,并将该压力信号发送至所述信号接收显示装置。 The shape of the tibial augment pressure obtaining the shape, size and the artificial knee joint in the prosthetic device, the same size, and the surgeon in the course of the patient's knee placed impose acquire the pressure signal, and transmits the signal to the pressure display means receiving said signal. 该信号接收显示装置将其接收到的压力信号进行力的处理,而后再以三维压力图的形式将压力分布情况显示出来,从而实时地为医生提供患者人工膝关节胫骨垫片处的受力情况。 The signal receiving means to display the received pressure signals are processed force, and then the pressure in the form of a three-dimensional map will be displayed pressure distribution, so as to provide real-time artificial knee joint force of the patient at the tibia bone slice doctors . 其中,压力获取装置是在医生手术过程中放入患者膝关节处以获取压力信号,在压力平衡后再将其取出并放入合适的胫骨垫片。 Wherein the pressure obtaining means is placed in the patient's knee surgeon imposed during signal acquisition pressure, remove it and put in the right tibia pad after pressure equalization. 本发明能够广泛应用于人工膝关节置换手术中。 The present invention can be widely applied to knee replacement surgery.

Description

一种人工膝关节置换术压力平衡测量系统技术领域 An artificial knee arthroplasty pressure equalization measurement system Field

[0001] 本发明涉及压力平衡测量系统,尤其涉及人工膝关节置换手术过程中的压力平衡测量系统。 [0001] The present invention relates to a pressure equalization measurement systems, in particular, it relates to a pressure measurement system balanced knee replacement surgical procedure.

背景技术 Background technique

[0002] 随着人口日益老龄化,患有膝关节骨性关节炎的患者数量呈上涨趋势,医院每年进行的人工膝关节置换手术也越来越多。 [0002] With an increasingly aging population, the number of patients suffering from osteoarthritis of the knee showed a rising trend in hospital for knee replacement surgery each year more and more. 人工膝关节置换手术为患者解决了膝关节老化或坏死及功能丧失等问题,解除了病人的痛苦,大大提高了患者的生活质量。 Knee replacement surgery for patients solved the knee aging or necrosis and loss of function and other issues, lifting the suffering of patients, greatly improving the quality of life of patients.

[0003] 然而,人工膝关节植入人体后由于长期承受运动应力,很容易出现胫骨假体垫片磨损,骨溶解等问题。 [0003] However, after the artificial knee implants in humans due to the long bear movement stress, it is easy tibial prosthesis pads wear, osteolysis and other issues. 成功的人工膝关节置换手术可以为进行了人工膝关节置换的病人提供十年到二十年甚至更长时间的服务;而不成功的人工膝关节置换手术则通常是由于植入人工膝关节压力不平衡而导致某些接触面受力过大,从而加速了人工膝关节的磨损和损坏,使患者不得不做第二次手术,这不仅为患者带来生理和心理的痛苦,还增加了患者以及社会的经济负担。 Successful knee replacement surgery can provide a decade or two or even longer service for patients who have undergone total knee replacement; not successful knee replacement surgery is usually due to the implantation of artificial knee joint pressure imbalance caused by certain contact surface excessive force, thereby accelerating the wear and damage to the artificial knee joint, the patient had a second surgery, which not only brings physical and psychological pain for the patient, but also increases the patient and economic burden on society. 因此让医生在手术过程中对人工膝关节应力的平衡做到心中有数,即保证人工膝关节在手术过程中位置的准确性及其植入人体后受力的合理性,又能提高人工膝关节置换手术的成功率,保证植入关节的使用寿命是亟待解决的问题。 So let the doctor during surgery to be aware of the balance of the artificial knee joint stress, which is to ensure the accuracy of the position of the artificial knee joint during surgery and after implantation of the reasonableness of the force of the human body, but also improve the artificial knee joint replacement surgery success rate, ensure the life of implanted joints is a serious problem.

[0004] 由此可见,在人工膝关节植入手术过程中,确保植入的人工膝关节的受力均衡至关重要。 [0004] Thus, in the artificial knee implant surgery process, to ensure that the implanted artificial knee joint force balance is essential. 然而,目前在手术过程中,医生判断植入人工膝关节压力平衡的方法仅凭经验,这不仅限定了实施人工膝关节植入手术医生的数量,同时也为人工膝关节置换手术带来了一定的风险和不稳定因素。 However, during surgery, doctors to determine the method of implanting an artificial knee joint pressure balance of a rule of thumb, which not only limits the number of artificial knee implant surgeon implementation, but also brought some artificial knee replacement surgery the risks and uncertainties.

发明内容 SUMMARY

[0005] 本发明提供了一种能够解决以上问题的人工膝关节置换术压力平衡测量系统。 [0005] The present invention provides an artificial knee joint which can solve the above problems of pressure equalization measurement system replacement.

[0006] 在第一方面,本发明提供`了一种人工膝关节置换术压力平衡测量系统,该压力平衡测量系统包括压力获取装置和信号接收显示装置。 [0006] In a first aspect, the present invention provides an 'artificial knee joint replacement surgery pressure equalization measurement system, the measurement system includes a pressure balancing pressure acquisition means and a display means receiving a signal. 该压力获取装置用于在医生手术过程中将其置于患者膝关节处以获取压力信号,并将该压力信号发送到所述信号接收显示装置中。 It means for obtaining the pressure in the surgeon during the patient's knee placed impose acquire the pressure signal, the pressure signal and transmits the signal to the receiving display device. 该信号接收显示装置接收所述压力信号并将压力分布情况显示出来,以便实时地为医生提供患者人工膝关节胫骨垫片处的受力情况。 The signal receiving means for receiving said display signal pressure and the pressure distribution is displayed, in real-time in order for doctors to provide an artificial knee joint in patients receiving the forces at the tibial augment. 其中,该压力获取装置是在医生手术过程中临时替代胫骨垫片,在压力平衡后再将其取出并放入适合的胫骨垫片。 Wherein the pressure obtaining means is a surgeon during a temporary replacement tibial augment, remove and put into a suitable tibial augment after the pressure equalization. 且该压力获取装置包括上受力平面、下支撑平面、传感器阵列、电路板和封闭外壳。 And the obtaining means comprises a pressure force on a plane, the support plane, the sensor array, the circuit board housing and the closure. 该上受力平面、下支撑平面、传感器阵列、电路板位于该封闭外壳内部。 The force on a plane, the support plane, the sensor array, the circuit board is located inside the closed housing. 该传感器阵列位于电路板上,每三个传感器(或三个以上传感器)中间的电路板有空洞,该上受力平面、下支撑平面通过该空洞与该空洞周围的所述三个传感器(或三个以上传感器)紧密结合,且该上受力平面与下支撑平面的结合方式为弹性非紧固连接。 The sensor array on the circuit board, each of the three sensors (sensors or more than three) of the intermediate circuit board has a cavity, the force on a plane, the plane through the lower support and the cavity around the cavity three sensors (or three or more sensors) closely, and the force on the lower support plane plane a non-binding manner of an elastic fastening. 其中,该封闭外壳为生物兼容的耐酸耐碱的高分子材料薄膜,该上受力平面、下支撑平面为不锈钢质地。 Wherein the closure is a housing of a biocompatible material film polymer acid and alkali, the force on the plane, the lower support plane texture of stainless steel.

[0007] 本发明的人工膝关节置换术压力平衡测量系统通过实时测量植入人工膝关节关节间隙的压力情况也就是胫骨假体垫片的压力情况,并将该压力情况传送至显示装置以显示出压力大小及分布情况,从而使医生在膝关节置换手术过程中对人工膝关节力的平衡做到心中有数,保证了人工膝关节在手术过程中放置位置的准确性,提高了人工膝关节在人体内所受应力分布的合理性,避免出现应力集中现象,延长人工膝关节的使用寿命,大大提高人工膝关节置换手术的成功率。 [0007] Artificial knee replacement system of the present invention, a pressure equalization measurement implanted artificial knee joint space by measuring pressure conditions in real time i.e. the tibial prosthesis pad pressure, and where the pressure transmitted to the display device to display the size and distribution of the pressure, so that the doctors in knee replacement surgery during the balance of the artificial knee joint force be aware of, to ensure the accuracy of the placement of the artificial knee joint during surgery, to improve the artificial knee joint the stress distribution in the human body is reasonable, to avoid the life of stress concentration, prolonged artificial knee joint appearance, greatly improving the success rate of knee replacement surgery.

附图说明 BRIEF DESCRIPTION

[0008] 下面将参照附图对本发明的具体实施方案进行更详细的说明,在附图中: [0008] will be explained in more detail with reference to the accompanying drawings of specific embodiments of the present invention, in the drawings:

[0009] 图1是人工植入假关节模型示意图; [0009] FIG. 1 is a schematic model of artificial joint implants;

[0010] 图2是本发明的人工膝关节置换术压力平衡测量系统示意图; [0010] FIG. 2 is a schematic diagram of the present invention, the artificial knee joint replacement surgery pressure equalization measurement system;

[0011] 图3是本发明一个实施例的人工膝关节置换术压力获取装置电路结构图; [0011] FIG. 3 is an embodiment of the artificial knee joint of the present invention is replacement circuit diagram of a pressure obtaining means;

[0012] 图4是本发明一个实施例的人工膝关节置换术压力获取装置机械结构图。 [0012] FIG. 4 is an embodiment of the artificial knee joint of the present invention is replacement with a mechanical pressure acquisition block diagram.

具体实施方式 Detailed ways

[0013] 图1是人工植入假关节模型示意图。 [0013] FIG. 1 is a schematic view of an artificial prosthetic joint implant model. 如图1所示,医生通过将患者股骨及胫骨之间的关节损坏部分去除,取而代之将人工膝关节植入其中,进而完成人工膝关节的置换。 As shown in FIG. 1, the doctor joint between tibia and femur of the patient by removing the damaged portion, the artificial knee joint implant wherein instead, thereby completing the replacement of the artificial knee joint.

[0014] 图2是本发明的人工膝关节置换术压力平衡测量系统示意图。 [0014] FIG. 2 is replaced with an artificial knee joint of the present invention is a schematic diagram of the measurement system operation pressure balance. 该压力平衡测量系统包括压力获取装置和信号接收显示装置。 The pressure equalization system includes a pressure measurement acquisition means and signal receiving display device. 在手术过程中,医生将该压力获取装置放入患者股骨假体及胫骨假体之间以获取压力信号,并通过无线的方式将该压力信号发送至信号接收显示装置,从而实时地为医生提供压力分布状况及压力值。 During surgery, doctors placed acquiring means to acquire the pressure signal pressure, and the pressure signal transmitted by a wireless manner between the patient's femur prosthesis and tibial prosthesis receiving signal to the display device, thereby to provide real time doctors pressure distribution and pressure.

[0015] 在本发明的另一个实施例中,所述压力信号收发方式为有线收发方式。 [0015] In another embodiment of the present invention, the pressure signal receive mode wired transmitting and receiving mode. 较佳地,该人工膝关节压力获取装置是一个手持设备。 Preferably, the artificial knee joint pressure obtaining means is a handheld device.

[0016] 需要说明的是,本发明的人工膝关节压力获取装置是在手术过程中放入患者膝关节处,临时替代胫骨垫片,在压力平衡后医生再将该压力获取装置取出并放入适合的胫骨假体垫片。 [0016] Incidentally, the artificial knee joint of the present invention, the pressure acquiring means is placed in the knee joint of the patient during surgery, temporary replacement of tibial shims, and then the pressure obtaining means doctors removed after pressure equalization and placed tibial prosthesis suitable gasket.

[0017] 图3是本发明一个实施例的人工膝关节置换术压力获取装置电路结构图。 [0017] FIG. 3 is an embodiment of the artificial knee joint replacement surgery of the present invention, the pressure means acquiring a circuit configuration diagram. 该压力平衡测量电路包括压力获取装置310和信号接收显示装置320。 The pressure balance circuit includes a pressure measurement means 310 and signal receiving apparatus 320 acquires the display. 该压力获取装置310包括传感器阵列311、信号处理器312、第一微处理器313和第一无线收发模块314。 The pressure acquisition means 310 includes a sensor array 311, a signal processor 312, the first microprocessor 313 and a first wireless transceiver module 314. 该信号接收显示装置320包括第二无线收发模块321、第二微处理器322和显示器323。 The display apparatus 320 includes a signal receiving a second wireless transceiver module 321, the second microprocessor 322 and a display 323.

[0018] 传感器阵列311由多个传感器构成,用于获取其周围压力信号。 [0018] The sensor array 311 is constituted by a plurality of sensors for acquiring the surrounding pressure signal. 在本发明的一个实施例中,传感器阵列中的各传感器分布于医生所关注的压力点上。 In one embodiment of the present invention, the sensor array each sensor pressure points distributed over the doctor concerned. 在发明的另一个实施例中,传感器阵列中的传感器几乎布满该压力获取装置310除电路元件及其连线以外的整个电路板。 In another embodiment of the invention, the sensor array is almost covered with the pressure sensor device 310 acquires the entire circuit board and circuit elements other than the connection.

[0019] 信号处理器312包括信号放大器和模数转换器,其功能是对来自传感器阵列311的模拟压力信号放大并做模/数转换,从而得到数字压力信号。 [0019] The signal processor 312 includes an amplifier and an analog signal, which is a function of the analog pressure signal from the sensor array 311 amplifies and do analog / digital conversion to obtain a digital pressure signal.

[0020] 第一微处理器313负责控制系统各器件正常工作,并对数字压力信号进行处理。 [0020] The first microprocessor 313 is responsible for proper operation of each control system, and the digital pressure signals are processed. 在本发明的一个实施例中,该第一微处理器313采用窗口处理方式获取该数字压力信号中的有用数据。 In one embodiment of the present invention, the microprocessor 313 uses the first embodiment acquires the window processing digital useful data pressure signal.

[0021] 第一微处理器313将该有用的数字压力信号进行编码和处理,第一无线收发模块314将处理后的数字压力信号以无线方式发射出去。 [0021] The first microprocessor 313 useful for encoding digital pressure signals and processing a first digital wireless transceiver module 314 is processed pressure signal wirelessly emitted.

[0022] 信号接收显示装置320中的第二无线收发模块321在第二微处理器322控制下接收来自压力获取装置310的有用数字压力信号,并对其进行处理,以获取当前的压力信息。 [0022] The display signal receiving apparatus 320 in the second wireless transceiver module 321 receives a second pressure from the microprocessor 322 controls the digital pressure signal to obtain useful device 310, and processed to obtain the current pressure information.

[0023] 第二微处理器322采用三次样条差值算法对其接收到的压力信息进行力的处理。 [0023] The second microprocessor 322 cubic sample difference algorithm processing section to force it receives pressure information. 在本发明的另一个实施例中,该力的处理方式通过独立的软件或硬件来实现。 In another embodiment of the present invention, the processing mode of the force is achieved through a separate software or hardware.

[0024] 信号接收显示装置320中的显示器323将由第二微处理器322处理后的力的信息以三维压力图的形式显示出来,以便医生能够在手术过程中实时直观地查看力的分布情况及力的值,进而为医生提供患者膝关节受力情况。 [0024] The received signal strength information display 323 after the display device 320 by the second microprocessor 322 in a display process in the form of a three-dimensional pressure map out, in real time so that the physician can visualize the distribution of forces during surgery and force values, thereby providing patients with knee stress situation for doctors.

[0025] 图4是本发明一个实施例的人工膝关节置换术压力获取装置机械结构图。 [0025] FIG. 4 is an embodiment of the artificial knee joint of the present invention is replacement with a mechanical pressure acquisition block diagram. 该压力获取机械装置包括上薄膜411、下薄膜412、上受力平面421、下支撑平面422、传感器阵列430、电路板440和支撑外壳450。 The mechanical means comprises a pressure obtaining on the film 411, the film 412, the force plane 421, the lower support plane 422, a sensor array 430, the circuit board 440 and the support housing 450.

[0026] 其中,上薄膜411和下薄膜412为生物兼容的耐酸耐碱的高分子塑料薄膜,该支撑外壳450也为生物兼容的耐酸耐碱的高分子塑料,只是该支撑外壳450相较于上薄膜411、下薄膜412硬度更大。 Polymer plastic film [0026] wherein, on the film 411 and the film 412 is a biocompatible acid and alkali, which support housing 450 is also biocompatible polymer plastic of acid and alkali, except that the support housing 450 as compared to the film 411, the film 412 at a greater hardness. 该上受力平面421和下支撑平面422均为不锈钢质地。 The force on the lower support plane 421 and plane 422 are stainless steel texture.

[0027] 图4中,上薄膜411、下薄膜412分别位于支撑外壳450的上下两侧,并与该支撑外壳450共同构成该压力获取装置的封闭外壳,且电路板440、传感器阵列430、上受力平面421、下支撑平面422均封闭在该封闭外壳内部。 [0027] In FIG 4, the film 411, the film 412 are located above and below the support housing 450 and the housing 450 together with the support constituting the closed housing pressure obtaining means, and the circuit board 440, the sensor array 430, the force plane 421, the lower support plane 422 are enclosed in the interior of the closed housing. 较佳地,由于该压力获取装置用于临时替代胫骨垫片,因此该压力获取装置的封闭外壳尺寸、形状与胫骨垫片尺寸、形状完全相同。 Preferably, since the pressure obtaining means for temporarily replace the tibia pad, so that the pressure acquiring means closed housing size, shape, and size of a tibial augment, the same shape.

[0028] 传感器阵列430 分布在电路板440上,每三个传感器(或三个以上传感器,图中仅示意出三个传感器,以下仅以三个传感器为例加以阐述)中间的电路板有一空洞460,上受力平面421、下支撑平面422通过该空洞460与该空洞460周围的三个传感器紧密结合,且该上受力平面421与下支撑平面的结合方式为弹性非紧固连接。 [0028] The sensor array 430 are distributed on the circuit board 440, each of the three sensors (three or more sensors, shown only schematically in FIG three sensors, the three sensors only be set forth as an example) the intermediate circuit board has a hole 460, the force plane 421, the lower support plane 422 and combined by the three sensors 460 of the cavity around the cavity 460, and the force on the lower support plane 421 and the plane of a non-binding manner of an elastic fastening.

[0029] 该上受力平面、三个传感器、电路板、下支撑平面之间的结合方式能够使外部压力无损耗地通过上受力平面、下支撑平面传送至该三个传感器上。 [0029] The forces on the plane, three sensors, a circuit board, the lower support plane between the binding mode can be made without loss by external pressure force on a plane, on the lower supporting plane is transmitted to the three sensors.

[0030] 医生在进行人工膝关节置换手术过程中,将该压力获取机械装置置于人工胫骨假体和股骨假体之间,通过人为搬动患者小腿,使膝关节进行屈伸运动,并在屈伸过程中观察人工胫骨假体和股骨假体之间的力分布情况,从而调整人工股骨假体和胫骨假体在人体的置放位置,并进行适当的软组织平衡松解,使压力分布达到平衡分布的理想状态 [0030] The doctor performing knee replacement surgery, the pressure obtaining mechanical means interposed between the artificial tibial prosthesis and a femoral prosthesis, by artificially moving patients lower leg, the knee flexion and extension movement, flexion and observed during the force distribution between the artificial tibial prosthesis and a femoral prosthesis, to adjust the placement body position of the artificial femoral prosthesis and the tibial prosthesis, and the proper balance of soft tissue release, the pressure distribution equilibrium distribution the ideal state

[0031] 显而易见,在不偏离本发明的真实精神和范围的前提下,在此描述的本发明可以有许多变化。 [0031] Obviously, without departing from the true spirit and scope of the present invention, the present invention described herein may have many variations. 因此,所有对于本领域技术人员来说显而易见的改变,都应包括在本权利要求书所涵盖的范围之内。 Therefore, all the skilled person obvious modifications, should be included within the scope of the present claims encompassed by the. 本发明所要求保护的范围仅由所述的权利要求书进行限定。 The present invention as claimed is only by the scope of the claims be limited.

Claims (11)

1.一种人工膝关节置换术压力平衡测量系统,包括压力获取装置和信号接收显示装置; 所述压力获取装置用于在医生手术过程中将其置于患者膝关节处以获取压力信号,并将该压力信号发送到所述信号接收显示装置中; 所述信号接收显示装置接收所述压力信号并将压力分布情况显示出来,以便实时地为医生提供患者人工膝关节处的胫骨垫片处的受力情况; 其中,所述压力获取装置是在医生手术过程中临时替代所述胫骨垫片,在压力平衡后再将其取出并放入适合的所述胫骨垫片; 且所述压力获取装置包括上受力平面、下支撑平面、传感器阵列、电路板和封闭外壳; 所述上受力平面、下支撑平面、传感器阵列、电路板位于所述封闭外壳内部; 所述传感器阵列位于所述电路板上,所述传感器阵列由三个以上传感器组成,所述三个以上传感器中间的电 An artificial knee joint replacement surgery pressure equalization measurement system comprising a pressure acquiring means and the display means receiving a signal; means for obtaining the pressure in the surgeon during the patient's knee placed impose acquire the pressure signal, and transmitting the pressure signal to the signal receiving means in a display; the signal receiver display device receives the pressure signal and the pressure distribution is displayed, in real time to provide a tibial augment artificial knee joint at the doctor's patients receiving force conditions; wherein said acquiring means is a pressure in the surgeon during the temporary replacement of tibial shims, remove it and put into a suitable spacer in the tibia after pressure equalization; and the pressure obtaining means comprises the force plane, the lower support plane, the sensor array, a circuit board, and the closed housing; the force on the plane, the lower support plane, the sensor array, the circuit board is located inside of the closed housing; the sensor array located in said circuit board on the sensor array comprises three or more sensors, the middle three or more electrical sensors 板有空洞,所述上受力平面、下支撑平面通过该空洞与该空洞周围的所述三个以上传感器紧密结合,且所述上受力平面与下支撑平面的结合方式为弹性非紧固连接; 其中,所述封闭外壳为生物兼容的耐酸耐碱的高分子材料薄膜,所述上受力平面、下支撑平面为不锈钢质地。 A cavity plate, the force on the plane, the plane of the lower support three or more closely integrated with the sensor through the cavity around the cavity, said upper and lower support force plane with a plane non-binding manner of an elastic fastening connector; wherein said closure is a housing of a biocompatible material film polymer acid and alkali, on the force plane, the lower support plane texture of stainless steel.
2.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述压力获取装置的形状、尺寸与所述胫骨垫片的形状、尺寸相同。 2. An artificial knee joint according to claim 1 arthroplasty pressure equalization measurement system, characterized in that the shape of the device, the size of the tibial augment the pressure obtaining the same size.
3.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述信号接收显示装置对其接收到的压力信号进行力的处理,且该力的处理方法采用三次样条差值算法。 3. An artificial knee arthroplasty pressure balance measuring system according to claim 1, wherein said signal processing means receiving a force display its received pressure signal, and processing method using the force the difference cubic spline algorithm. · ·
4.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述压力分布情况显示方式为动态的三维压力图形显示方式和压力数值方式。 4. An artificial knee joint according to claim 1 arthroplasty pressure balance measuring system, wherein, when the display method of the three-dimensional dynamic pressure distribution of the pressure values ​​and pressure graphics display mode.
5.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述压力获取装置还包括信号处理模块、第一微处理器和第一收发模块; 所述传感器阵列用于获取其周围压力信号; 所述信号处理模块用于获取数字压力信号; 所述第一微处理器采用窗口处理方式获取所述数字压力信号的有用数据,将有用的所述数字压力信号进行编码和处理; 所述第一收发模块将处理后的所述数字压力信号发送出去。 The sensor; as claimed an artificial knee arthroplasty pressure balance measuring system according to claim 1, wherein said acquiring means further comprises a pressure signal processing module, a first microprocessor and a first transceiver module for obtaining an array of pressure around the signal; a digital signal processing module configured to obtain pressure signals; processing window of the first embodiment using a microprocessor to obtain useful data of the digital pressure signal, the useful signal of the digital pressure and encoding process; the digital pressure signal to the first transceiver module transmits the processed.
6.如权利要求5所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述传感器阵列分布于医生所关注的压力点上。 6. An artificial knee joint claimed in claim 5, wherein the replacement measure pressure balancing system, wherein the sensor array distributed on the pressure points of interest physician.
7.如权利要求5所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述信号处理模块用于将其接收到的模拟压力信号进行放大处理,再做模数变换,从而得到数字压力信号。 7. An artificial knee joint claimed in claim 5, wherein the replacement measure pressure balancing system, wherein the signal processing module is configured to received analog pressure signal amplification processing, analog-digital conversion do, pressure to obtain a digital signal.
8.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述压力信号的收发方式为无线收发方式。 8. An artificial knee joint according to claim 1 arthroplasty pressure equalization measurement system, characterized in that the pressure signal receive mode for the wireless transceiver mode.
9.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述信号接收显示装置包括第二收发模块、第二微处理器、显示器;所述第二收发模块用于接收来自所述压力获取装置的压力信号,并对该压力信号进行解码,从而获得当前的压力信息; 所述第二微处理器采用三次样条差值算法对所述压力信息进行力的处理; 所述显示器将处理后的力的信息以动态的三维压力图和压力数值的形式显示出来。 9. An artificial knee arthroplasty pressure balance measuring system according to claim 1, wherein said display means includes a second signal receiving transceiver module, a second microprocessor, a display; the second transceiver means for receiving a pressure signal from the pressure obtaining means, and decoding the signal pressure, to thereby obtain current pressure information; and the second microprocessor using cubic spline algorithm bar the pressure difference information force processing; after the force information display processing will be displayed in the form of three-dimensional pressure map and the dynamic pressure values.
10.如权利要求1所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述封闭外壳包括上薄膜、下薄膜和支撑外壳; 所述上薄膜、下薄膜分别位于所述支撑外壳的上下两侧。 10. An artificial knee joint according to claim 1 arthroplasty pressure equalization measurement system, wherein the closed housing includes an upper film and lower film and the support housing; the upper film, the lower film are located supporting upper and lower sides of the housing.
11.如权利要求10所述的一种人工膝关节置换术压力平衡测量系统,其特征在于,所述支撑外壳硬度相较于该上薄膜、下薄膜更大。 11. An artificial knee joint according to claim 10 arthroplasty pressure equalization measurement system, characterized in that the support housing as compared to the hardness of the film, the film greater.
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CN102688097B (en) * 2012-05-14 2014-11-26 清华大学 Attitude acquisition method and system for acetabulum and femoral head in artificial hip joint replacement
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5916220A (en) 1998-02-02 1999-06-29 Medidea, Llc Bone cutting guide and method to accommodate different-sized implants
CN1729483A (en) 2002-11-27 2006-02-01 康复米斯公司 Patient selectable joint arthroplasty devices and surgical tools facilitating increased accuracy, speed and simplicity in performing total and partial joint arthroplasty
CN1810208A (en) 2005-01-28 2006-08-02 深圳安科高技术股份有限公司 System and method for measuring pressure distribution and interval between two bearers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5916220A (en) 1998-02-02 1999-06-29 Medidea, Llc Bone cutting guide and method to accommodate different-sized implants
CN1729483A (en) 2002-11-27 2006-02-01 康复米斯公司 Patient selectable joint arthroplasty devices and surgical tools facilitating increased accuracy, speed and simplicity in performing total and partial joint arthroplasty
CN1810208A (en) 2005-01-28 2006-08-02 深圳安科高技术股份有限公司 System and method for measuring pressure distribution and interval between two bearers

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