-
公开(公告)号:US4679176A
公开(公告)日:1987-07-07
申请号:US673945
申请日:1984-11-21
CPC分类号: G01S7/52025 , G10K11/346
摘要: In an ultrasonic imaging apparatus, when a sampling time space determined corresponding to the respective phases of receiving signals from transducer elements adjacent to each other is shorter than the settling time of sample and hold circuits, these receiving signals are sampled at the same time. Noise is prevented from being mixed with the sample and hold values of these signals.
摘要翻译: 在超声波成像装置中,当相应于来自相邻的换能器元件的接收信号的相位确定的采样时间空间比采样和保持电路的建立时间短时,这些接收信号被同时采样。 防止噪声与这些信号的采样和保持值混合。
-
公开(公告)号:US4759372A
公开(公告)日:1988-07-26
申请号:US916791
申请日:1986-10-08
摘要: An ultrasonic probe used for ultrasonic diagnosis apparatus. A plurality of ultrasonic transducer elements are provided in a convexity at the tip of a probe so as to constitute a convex array ultrasonic probe. The curvature radius of the convexity is set at not greater than 12 mm and the pitch of adjacent transducer elements is set at not greater than 1/30 of the curvature radius and a ratio .DELTA./Y is set at not greater than 1/35, where Y represents the beam focal distance and .DELTA. represents the lateral resolution of the probe.
摘要翻译: 超声波探头用于超声波诊断仪。 多个超声波换能器元件在探针的尖端处以凸起设置,以构成凸阵列超声波探头。 将凸部的曲率半径设定为12mm以下,将相邻的换能器元件的节距设定为不大于曲率半径的1/30,将比例DELTA / Y设定为1/35以下, 其中Y表示光束焦距,DELTA表示探头的横向分辨率。
-
3.
公开(公告)号:US4627290A
公开(公告)日:1986-12-09
申请号:US723157
申请日:1985-04-15
CPC分类号: G01N29/262 , G01H5/00
摘要: A pulsating sound wave beam is transmitted into an object using an array-type ultrasonic wave transducer which consists of a plurality of elements; the reflected sound waves are received using said transducer while electronically focusing the reflected sound waves depending upon an estimated speed of sound in the object, and the beam width of sound waves is measured repeatedly near a particular reflector while successively changing the estimated speed of sound. The estimated speed of sound of when the beam width is minimal is the mean speed of sound of the object in practice, and the beam width at that moment serves as an indication of acoustical homogeneity of the object.
摘要翻译: 使用由多个元件组成的阵列型超声波换能器将脉动声波波束发射到物体中; 使用所述换能器接收反射的声波,同时根据物体中估计的声速来对反射的声波进行电子聚焦,并且在连续改变估计的声速的同时在特定反射器附近测量声波的波束宽度。 波束宽度最小时的声速的估计速度是实际中物体的平均声速,并且此时的波束宽度用作对象的声学均匀性的指示。
-
公开(公告)号:US4974558A
公开(公告)日:1990-12-04
申请号:US769805
申请日:1985-08-27
CPC分类号: G01S7/52046 , A61B8/14 , G01S15/89 , G10K11/341
摘要: In an ultrasonodiagnostic tomography apparatus for transmitting focused sound wave from a plurality of transducers forming an array to a predetermined focus point and for carrying out beam formation for receiving sound from said focus point with dynamic focusing, wherein the width of transmission beam at said focus point is controlled by means of said transducers so that the width of transmission beam at said focus point may be larger than the width of receiving beam from said focus point.
摘要翻译: 在用于将形成阵列的多个换能器的聚焦声波发送到预定焦点并且用于通过动态聚焦执行用于从所述焦点接收声音的波束形成的超声诊断断层摄影装置中,其中在所述焦点处的发射束的宽度 通过所述换能器来控制,使得在所述焦点处的透射束的宽度可以大于从所述聚焦点的接收光束的宽度。
-
公开(公告)号:US4566459A
公开(公告)日:1986-01-28
申请号:US580166
申请日:1984-02-14
IPC分类号: A61B8/00 , A61B8/08 , A61B8/14 , G01N29/04 , G01N29/06 , G01N29/26 , G01N29/44 , G01S7/52 , G01S15/89 , G10K11/34 , A61B10/00
CPC分类号: A61B8/00 , G01S15/8918 , G01S15/8927 , G01S7/52046 , G01S7/52065 , G10K11/345
摘要: An ultrasonic diagnosis system comprising a variable setting arrangement including an ultrasonic transducer array for transmitting a pulse-like ultrasonic wave to an object and detecting a reflection wave from the object, and assuming the acoustic velocity of the object; a control arrangement for determining the depth of electronic focusing in accordance with this assumed acoustic velocity; and a display for displaying the assumed acoustic velocity. The ultrasonic diagnosis system determines whether the reflection signal of the object at a predetermined position is in-focus or out-of-focus and knows the actual acoustic velocity of the object from the assumed acoustic velocity when the reflection signal is in-focus.
摘要翻译: 一种超声波诊断系统,包括:可变设定装置,包括:超声波换能器阵列,用于向对象发送脉冲状超声波,并检测来自物体的反射波,并且假设物体的声速; 用于根据该假定的声速确定电子聚焦的深度的控制装置; 以及用于显示假设声速的显示器。 超声波诊断系统确定在预定位置处的物体的反射信号是否在焦点或焦点外,并且当反射信号在焦点时从假定的声速知道物体的实际声速。
-
公开(公告)号:US4604543A
公开(公告)日:1986-08-05
申请号:US676314
申请日:1984-11-29
CPC分类号: B06B1/0622
摘要: A multi-element ultrasonic transducer in which elements are arrayed and in which a plate-shaped piezoelectric material has its one face formed with a uniform electrode and its other face formed alternately with electrodes corresponding to the respective elements and electrodes for separating the elements. These electrodes for the element separation are connected the uniform electrode opposed thereto and is fed with a ground potential. On the other hand, the electrodes corresponding to the respective elements are fed individually with transmitting and receiving signals independently of the elements so that the electronic scanning or focusing operations can be achieved.
摘要翻译: 一种多元件超声波换能器,其中排列有元件,其中板形压电材料的一面形成有均匀的电极,其另一面与电极对应地形成,电极对应于各元件和用于分离元件的电极。 用于元件分离的这些电极与与其相对的均匀电极连接并且被馈送有接地电位。 另一方面,对应于各个元件的电极单独地馈送发送和接收信号,独立于元件,使得可以实现电子扫描或聚焦操作。
-
公开(公告)号:US4628223A
公开(公告)日:1986-12-09
申请号:US662098
申请日:1984-10-18
CPC分类号: G01H11/08 , H01L41/183 , Y10S310/80
摘要: A high-sensitivity ultrasonic probe comprising a plate of a composite material having the regions of a piezoelectric ceramic polarized uniformly in the direction of thickness and the regions of polymer, both regions existing dispersed alternately in the direction parallel to the plate surface, electrodes formed on both sides of the composite material, and a connecting layer formed on at least one side of the composite material and composed of a material harder than said polymer.
摘要翻译: 一种高灵敏度超声波探头,包括复合材料板,其具有在厚度方向上均匀偏振的压电陶瓷的区域和聚合物的区域,两个区域在平行于板表面的方向交替地分散,两个区域形成在 复合材料的两侧,以及形成在复合材料的至少一侧上并由比所述聚合物硬的材料构成的连接层。
-
公开(公告)号:US5246006A
公开(公告)日:1993-09-21
申请号:US781840
申请日:1991-10-24
申请人: Hiroshi Kanda , Shinichiro Umemura , Hisashi Nishiyama , Ryuichi Shinomura , Kageyoshi Katakura , Shizuo Ishikawa , Koji Tanabe , Satoshi Tamano
发明人: Hiroshi Kanda , Shinichiro Umemura , Hisashi Nishiyama , Ryuichi Shinomura , Kageyoshi Katakura , Shizuo Ishikawa , Koji Tanabe , Satoshi Tamano
CPC分类号: G01S15/8981 , A61B8/06 , A61B8/13 , G01P5/244 , G01S7/52071
摘要: An ultrasonic flow mapping apparatus transmits and reflects waves from sampling points on a two-dimensional cross-section. The waves are detected while transmitting repeatedly ultrasonic pulses. The phase shifts of different reflected waves are calculated, and displayed in color to show a distribution of blood flow velocity. Artifact due to reflected waves from body organs, which remain even by using MTI filters, is detected from phase signals, which have not passed through the MTI filters, and the artifact is removed by lowering display brightness for a sampling point corresponding to a relevant detection output.
摘要翻译: 超声流量测绘装置在二维横截面上从采样点发射和反射波。 在发送重复的超声波脉冲时检测波。 计算不同反射波的相移,并以彩色显示,以显示血流速度的分布。 从没有通过MTI滤波器的相位信号中检测出由于身体器官的反射波而产生的人造物体,甚至通过使用MTI滤波器仍然保持人造物,并且通过降低对应于相关检测的采样点的显示亮度来消除伪像 输出。
-
公开(公告)号:US5158071A
公开(公告)日:1992-10-27
申请号:US373264
申请日:1989-06-27
CPC分类号: A61M37/0092 , A61N7/00 , A61N7/02 , A61B2017/22008 , A61B2017/22028 , A61B2017/22088 , A61N2007/006 , A61N2007/0078 , A61N2007/0095 , A61N2007/027
摘要: An ultrasonic apparatus for thereapeutical use, especially for remedying a malignant tumor, through activation of a drug at a desired local portion inside of a living body by sequentially irradiating a plurality kinds of convergent ultrasonic waves having different focal positions of different acoustic pressure distribution shapes but having a mutually overlapping focal zone and by switching them within a short period. The drug is activated as a promotor for an ultrasonic therapeutical effect through continuous generation and rupture of cavitation caused by the irradiated and switched ultrasonic waves.
-
公开(公告)号:US06224826B1
公开(公告)日:2001-05-01
申请号:US09270846
申请日:1999-03-18
申请人: Kageyoshi Katakura , Masahiro Kurihara , Kazuo Takei , Shinichiro Umemura , Kenichi Kawabata , Hiroshi Masuzawa
发明人: Kageyoshi Katakura , Masahiro Kurihara , Kazuo Takei , Shinichiro Umemura , Kenichi Kawabata , Hiroshi Masuzawa
IPC分类号: A61L200
CPC分类号: A61L2/025 , C02F1/36 , C02F1/48 , C02F2303/04 , Y10S261/48
摘要: A method and apparatus for sterilizing water containing pathogen protozoa having shells in a simple manner without negative influencing the environment is disclosed. Ultrasonic waves are applied to drinking water to form fine cavitation bubbles which are used to destroy the shells of pathogenic protozoa. The residual chlorine in the drinking water along with an oxidizing action and effect of the ultrasonic wave, permit not only sterilization but also deodorization and decolorization.
摘要翻译: 公开了以简单的方式对含有病原体原生动物的水灭菌的方法和装置,而不会对环境产生不利影响。 超声波应用于饮用水,形成细小的气泡,用于破坏致病原生动物的壳。 饮用水中的残留氯以及超声波的氧化作用和作用,不但能消毒灭菌,而且除臭脱色。
-
-
-
-
-
-
-
-
-