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申请号:202010068899.6 公开号:CN111214324A 主分类号:A61F9/007
摘要:【中文】本发明涉及手术器械技术领域,且公开了一种角型尖头微切口撕囊镊,包括两个连接部,两个连接部通过焊接连接在一起,两个连接部的下表面均固定连接有镊身部,两个镊身部均通过连接机构连接有镊尾部,两个连接部的侧壁均开设有安置槽,安置槽内固定连接有电源,连接部的下表面固定连接有连接杆,连接杆位于两个镊身部之间,连接杆内部连接有导线。该角型尖头微切口撕囊镊,能够在医生手指张开时,通过控制驱动电机缓慢控制两个镊身部的距离,避免年轻医生在使用撕囊镊进行手术时,由于人手的不稳定性,往往会造成撕囊镊开合的不稳定,影响手术进展的问题和能够在镊尾部出现问题时,方便快捷的更换镊尾部,更加方便人们的使用。 【EN】The invention relates to the technical field of surgical instruments and discloses angle-shaped pointed-end micro-incision capsulorhexis forceps which comprise two connecting parts, wherein the two connecting parts are connected together through welding, the lower surfaces of the two connecting parts are fixedly connected with forceps body parts, the two forceps body parts are connected with forceps tail parts through connecting mechanisms, the side walls of the two connecting parts are respectively provided with a placing groove, a power supply is fixedly connected in the placing grooves, the lower surfaces of the connecting parts are fixedly connected with connecting rods, the connecting rods are located between the two forceps body parts, and wires are connected in the connecting rods. This angle type tip micro-incision tears bag tweezers can be when doctor's finger opens, through the distance of two tweezers body portions of control driving motor slow control, avoids young doctor when using to tear bag tweezers and perform the operation, because the instability of staff, often can cause the unstability that tears the bag tweezers and open and shut, influences the problem of operation progress and can be when tweezers afterbody goes wrong, convenient and fast's change tweezers afterbody makes things convenient for people's use more.
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申请号:202010068924.0 公开号:CN111249063A 主分类号:A61F9/007
摘要:【中文】本发明涉及眼科工具技术领域,且公开了一种尾镊式咬合镊眼内镊,包括两个结构相同的第一镊爪和第二镊爪,第一镊爪和第二镊爪对称设置,第一镊爪和第二镊爪的底端共同固定连接有固定柱,且固定柱呈圆柱体结构设置,第一镊爪和第二镊爪的顶端为分离式的锥形结构,固定柱的底端连接有筒体,且筒体为底端开口的中空结构,筒体的内壁和外壁均设有螺纹,且筒体的外侧壁上螺纹连接有匹配的螺纹套,螺纹套顶端开口的沿边上开设有环形豁口,且环形豁口内通过第一轴承转动连接有滑套,滑套套设在筒体上,且滑套与筒体活动连接,固定柱上滑动套接有匹配的滑管。该尾镊式咬合镊眼内镊,不仅方便取出眼内异物,而且有效减小对眼的创伤。 【EN】The invention relates to the technical field of ophthalmic tools and discloses tail tweezers type occlusion forceps intraocular forceps, which comprise a first forceps claw and a second forceps claw which are identical in structure, wherein the first forceps claw and the second forceps claw are symmetrically arranged, the bottom ends of the first forceps claw and the second forceps claw are fixedly connected with a fixed column together, the fixed column is arranged in a cylindrical structure, the top ends of the first forceps claw and the second forceps claw are of a separated conical structure, the bottom end of the fixed column is connected with a barrel body, the barrel body is of a hollow structure with an open bottom end, the inner wall and the outer wall of the barrel body are provided with threads, the outer side wall of the barrel body is in threaded connection with a matched threaded sleeve, an annular opening is formed in the edge of the open top end of the threaded sleeve, a sliding sleeve is rotatably connected in the annular opening through a first bearing, the sliding sleeve is sleeved on the barrel body, the sliding sleeve is movably connected with the barrel body, and a matched sliding pipe. The tail forceps type intra-ocular forceps for holding the forceps can not only facilitate the taking out of foreign matters in the eye, but also effectively reduce the trauma to the eye.
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申请号:202010095456.6 公开号:CN111222495A 主分类号:G06K9/00
申请人:【中文】济南大学【EN】University of Jinan 申请日:2020.02.17 公开日:2020.06.02
摘要:【中文】本申请公开了一种基于小波分解和改进曼哈顿距离的滚动轴承故障诊断方法,提取滚动轴承运行中四种工况各五组样本数据并对每组进行10等分,各采用小波分解方法将时域信号分成五层信号;对每层信号变换为SDP图像;将SDP图像二值化,并提取局部矩阵,每组10个局部矩阵计算一个平均局部矩阵;对每一个局部矩阵进行去噪;计算10个局部矩阵与平均局部矩阵的改进曼哈顿距离,并提取改进曼哈顿距离最大值与最小值;计算五组样本数据的改进曼哈顿距离最大值与最小值;随机选取四种工况共300组测试数据进行测试确定工况。能够比较准确地诊断出滚动轴承正常工况、滚动轴承内圈故障工况、滚动轴承滚珠故障工况以及滚动轴承外圈故障工况。 【EN】The application discloses a rolling bearing fault diagnosis method based on wavelet decomposition and improved Manhattan distance, wherein five groups of sample data of four working conditions in the running process of a rolling bearing are extracted, each group is equally divided by 10, and time domain signals are divided into five layers of signals by adopting a wavelet decomposition method; converting each layer of signals into an SDP image; binarizing the SDP image, extracting local matrixes, and calculating an average local matrix for each group of 10 local matrixes; denoising each local matrix; calculating improved Manhattan distances of the 10 local matrixes and the average local matrix, and extracting the maximum value and the minimum value of the improved Manhattan distances; calculating the maximum value and the minimum value of the improved Manhattan distance of the five groups of sample data; and randomly selecting 300 groups of test data of four working conditions to test and determine the working conditions. The normal working condition of the rolling bearing, the fault working condition of the inner ring of the rolling bearing, the fault working condition of the ball of the rolling bearing and the fault working condition of the outer ring of the rolling bearing can be accurately diagnosed.
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申请号:202010095457.0 公开号:CN111272428A 主分类号:G01M13/045
申请人:【中文】济南大学【EN】University of Jinan 申请日:2020.02.17 公开日:2020.06.12
摘要:【中文】本申请公开了一种基于改进切比雪夫距离的滚动轴承故障诊断方法及系统,选取滚动轴承中正常工况和故障工况的样本数据,将10组样本数据的每组样本数据10等分;然后进行EMD分解,并选取分解后前5个IMF分量;将每个IMF分量进行SDP变换,将SDP图像二值化,并选取图像的局部矩阵,然后计算10份局部矩阵的均值矩阵;对每组样本的局部矩阵与均值矩阵进行椒盐去噪;计算均值矩阵的最大特征根;计算每一组样本中10份矩阵与其均值矩阵的改进切比雪夫距离;选取10组样本数据改进切比雪夫距离的最大值与最小值,判断测试数据属于那种工况。改进切比雪夫距离能够较为准确地区分开滚动轴承的正常状态、滚珠故障、外圈故障、内圈故障。 【EN】The application discloses a rolling bearing fault diagnosis method and system based on an improved Chebyshev distance, wherein sample data of normal working conditions and fault working conditions in a rolling bearing are selected, and each group of 10 groups of sample data is divided into 10 equal parts; then EMD decomposition is carried out, and the first 5 IMF components after decomposition are selected; carrying out SDP transformation on each IMF component, carrying out binarization on an SDP image, selecting a local matrix of the image, and then calculating a mean matrix of 10 local matrices; performing salt and pepper denoising on the local matrix and the mean matrix of each group of samples; calculating the maximum characteristic root of the mean value matrix; calculating improved Chebyshev distances between 10 matrixes in each group of samples and the mean matrix thereof; and selecting the maximum value and the minimum value of the improved Chebyshev distance of 10 groups of sample data, and judging the working condition of the test data. The improvement of the Chebyshev distance can accurately distinguish the normal state, the ball fault, the outer ring fault and the inner ring fault of the rolling bearing.
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申请号:201911200972.4 公开号:CN110903331A 主分类号:C07H15/04
摘要:【中文】本发明公开了一种分离烷基糖苷粗品中脂肪醇的方法,属于轻化工日用品分离技术领域,一种分离烷基糖苷粗品中脂肪醇的方法,采用超临界CO2萃取分离技术,萃取分离未反应的脂肪醇,获得高纯度烷基糖苷固态产品,无需使用有机溶剂,不需要后处理,成本低,容易规模化放大生产,且通过半通透悬空桶和气腔通道的设置,一方面可以向其腔通道内通入CO2,使得含有脂肪醇的CO2流体内呈现微沸腾的情况,进而加速气态CO2的溢出,进而加快分离效率,另一方面,相较于现有技术的一个方向排出分离的CO2,在停止通入CO2后,分离的气态CO2,本发明既可以从上方以及气腔通道多向向外排出,还能有效降低气态CO2溢出时的运动路径,从而显著提高气态CO2与脂肪醇的分离效率。 【EN】The invention discloses a method for separating fatty alcohol from alkyl glycoside crude product, belonging to the technical field of light chemical industry daily necessities separation, the method for separating fatty alcohol from alkyl glycoside crude product adopts supercritical CO2 extraction separation technology to extract and separate unreacted fatty alcohol, so as to obtain high-purity alkyl glycoside solid product, does not need to use organic solvent, does not need post-treatment, has low cost, is easy for large-scale production, and can lead CO2 to the cavity channel through the arrangement of semi-permeable suspension barrel and air cavity channel, so that the CO2 fluid containing fatty alcohol is in micro-boiling condition, further the overflow of gaseous CO2 is accelerated, further the separation efficiency is accelerated, on the other hand, compared with the CO2 separated in one direction in the prior art, the separated gaseous CO2 is discharged from the upper part and the air cavity channel outwards in multiple directions after the CO2 is stopped, the moving path of the gaseous CO2 during overflowing can be effectively reduced, and therefore the separation efficiency of the gaseous CO2 and the fatty alcohol is remarkably improved.
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申请号:201911200991.7 公开号:CN111040004A 主分类号:C07H15/04
摘要:【中文】本发明公开了一种连续逆流萃取烷基糖苷粗品中长链脂肪醇的方法,属于轻化工日用品分离技术领域,可以实现基于超临界CO2萃取技术,连续逆流萃取烷基糖苷粗品中的长链脂肪醇,达到高精度提纯的目的,萃取调节温和无污染,萃取能力强、提取率高,提取时间快,是一种绿色分离纯化技术,同时CO2可以在同流吸附组件的配合下实现不减速连续分离,可以在维持温度和气压的条件下对CO2气体中夹带的长链脂肪醇进行主动吸附,进而提高CO2的分离效果,使得CO2在循环使用时保持较高的萃取效果,同时同流吸附组件同样可以在萃取结束后脱附回收长链脂肪醇,与现有技术相比可以大幅提高长链脂肪醇的萃取率,且同流吸附组件在脱附处理后可以重复利用。 【EN】The invention discloses a method for continuously and counter-currently extracting long-chain fatty alcohol from a crude alkyl glycoside product, which belongs to the technical field of separation of light chemical articles for daily use, can realize continuous and counter-current extraction of the long-chain fatty alcohol from the crude alkyl glycoside product based on a supercritical CO2 extraction technology, achieves the aim of high-precision purification, is mild in extraction regulation, free of pollution, strong in extraction capacity, high in extraction rate and fast in extraction time, is a green separation and purification technology, can realize non-deceleration continuous separation under the cooperation of a CO-current adsorption component, can actively adsorb the long-chain fatty alcohol carried in CO2 gas under the condition of maintaining temperature and air pressure, further improves the separation effect of CO2, keeps a higher extraction effect when CO2 is recycled, and simultaneously can also desorb and recover the long-chain fatty alcohol after extraction is finished by the CO-current adsorption component, and can greatly improve the extraction rate of the long-chain fatty alcohol compared with the prior art, and the cocurrent adsorption component can be repeatedly used after desorption treatment.
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申请号:201911209225.7 公开号:CN110843421A 主分类号:B60B35/00
摘要:【中文】本发明提供车轮轴和应用该车轮轴的车轮组件,所述车轮轴包括轴体和轴体上的轴肩,所述轴件径向凸出于轴体表面;所述轴肩的第一侧与安装在轴体上的轴承抵触;所述轴肩的第二侧承担轴向外力,使所述轴向外力不作用在轴承上。所述轴肩能够防止轴承磨损,同时消除轴向间隙提高车轮运行的平顺性。 【EN】The invention provides a wheel shaft and a wheel assembly applying the wheel shaft, wherein the wheel shaft comprises a shaft body and a shaft shoulder on the shaft body, and the shaft part radially protrudes out of the surface of the shaft body; the first side of the shaft shoulder is abutted against a bearing arranged on the shaft body; and the second side of the shaft shoulder bears the axial external force, so that the axial external force does not act on the bearing. The shaft shoulder can prevent the bearing from being worn, and simultaneously eliminates the axial clearance to improve the running smoothness of the wheel.
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申请号:201811033467.0 公开号:CN110876829A 主分类号:A61M25/00
摘要:【中文】本发明公开了一种可视引流管组件。可视引流管组件包括可视管头、管体和内窥镜。可视管头由透光率不小于80%的材质制成。管体沿长度方向具有首端和尾端,管体的首端连接于可视管头,管体的尾端的侧壁上设有与管体的内部相连通的引流口。内窥镜位于管体的首端的内部。管体不阻碍内窥镜成像,且能够对内窥镜起到一定的保护作用,使得在穿刺置管的过程中同内窥镜手术一样方便、直观,能够避免置管过程中盲穿,减少了对临床医生经验的依赖,能够在极小的损伤的情况下达到预期的引流位置,同时也能够避免直接使用内窥镜再置管的不必要的麻烦,有利于避免二次损伤,有利于提高置管效率。 【EN】The invention discloses a visual drainage tube assembly. The visual drainage tube assembly comprises a visual tube head, a tube body and an endoscope. The visual tube head is made of a material with the light transmittance not less than 80%. The tube body has a head end and a tail end along the length direction, the head end of the tube body is connected with the visual tube head, and a drainage port communicated with the inside of the tube body is arranged on the side wall of the tail end of the tube body. The endoscope is located inside the head end of the tube body. The body does not obstruct endoscope imaging, and can play certain guard action to the endoscope for the in-process of putting the pipe in puncture is as convenient, directly perceived with the endoscope operation, can avoid putting the blind wearing of pipe in-process, has reduced the reliance to clinician experience, can reach anticipated drainage position under the condition of minimum damage, also can avoid the unnecessary trouble of directly using the endoscope to put the pipe simultaneously, is favorable to avoiding secondary damage, is favorable to improving and puts a tub efficiency.
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申请号:201911180452.1 公开号:CN110880178A 主分类号:G06T7/00
申请人:【中文】济南大学【EN】University of Jinan 申请日:2019.11.27 公开日:2020.03.13
摘要:【中文】本申请公开了一种基于改进曼哈顿距离的滚动轴承故障诊断方法,提取滚动轴承运行中正常工况和故障工况的样本数据,分别进行等分处理,进行SDP变换,进行像二值化获得二值图像,并提取二值图像的局部矩阵;计算局部矩阵的均值矩阵;对局部矩阵和均值矩阵进行椒盐去噪,计算均值矩阵的最大特征根,计算局部矩阵与均值矩阵的曼哈顿距离,并计算曼哈顿距离的平均值;将曼哈顿距离的平均值分别与其对应均值矩阵的k倍最大特征根相加,分别提取正常工况样本数据和故障工况样本数据中样本子数据对应的最大值和最小值。确定滚动轴承的正常工况范围和故障工况范围,能够对滚动轴承故障特征进行有效且较为准确的提取,同时诊断的结果具有比较高的精准度。 【EN】The application discloses a rolling bearing fault diagnosis method based on an improved Manhattan distance, which comprises the steps of extracting sample data of normal working conditions and fault working conditions in the running process of a rolling bearing, respectively carrying out equal division processing, carrying out SDP (standard definition protocol) transformation, carrying out image binarization to obtain a binary image, and extracting a local matrix of the binary image; calculating a mean matrix of the local matrix; performing salt-pepper denoising on the local matrix and the mean matrix, calculating the maximum characteristic root of the mean matrix, calculating the Manhattan distance between the local matrix and the mean matrix, and calculating the average value of the Manhattan distances; and respectively adding the average value of the Manhattan distance with the k-time maximum characteristic root of the corresponding average value matrix, and respectively extracting the maximum value and the minimum value corresponding to the sample subdata in the normal working condition sample data and the fault working condition sample data. The normal working condition range and the fault working condition range of the rolling bearing are determined, the fault characteristics of the rolling bearing can be effectively and accurately extracted, and meanwhile, the diagnosis result has high accuracy.
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申请号:201911414501.3 公开号:CN110910957A 主分类号:G16B20/20
摘要:【中文】本发明公开了一种基于单肿瘤样本高通量测序微卫星不稳定性探测位点筛选方法,该方法基于优化后的微卫星位点状态标志,采用机器学习技术,通过对每个微卫星位点进行建模分析,利用有效位点被判别为微卫星不稳定位点的百分比来探测每个样本是否为微卫星不稳定状态,实现只利用肿瘤样本测序数据来探测微卫星不稳定状态,能够高精度判断多个微卫星位点的稳定性,实现准确稳定的微卫星不稳定状态基因检测。 【EN】The invention discloses a method for screening microsatellite instability detection sites based on single tumor sample high-throughput sequencing, which is based on optimized microsatellite site state marks, adopts a machine learning technology, carries out modeling analysis on each microsatellite site, detects whether each sample is in a microsatellite instability state or not by utilizing the percentage of effective sites which are judged as microsatellite instability positioning points, realizes the detection of the microsatellite instability state by only utilizing tumor sample sequencing data, can judge the stability of a plurality of microsatellite sites with high precision, and realizes accurate and stable microsatellite instability state gene detection.
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