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1. 发明专利

JPH0824259A NEEDLE-LIKE ULTRASONIC PROBE 失效
公开(公告)号：JPH0824259A
公开(公告)日：1996-01-30
申请号：JP16093294
申请日：1994-07-13
申请人： HITACHI LTD , HITACHI MEDICAL CORP , HITACHI CONSTRUCTION MACHINERY
发明人： YOKOZAWA KOICHI , SHINOMURA RYUICHI , ITO YUKIO , ISHIKAWA KIYOSHI , KANDA HIROSHI
IPC分类号： A61B8/12
摘要： PURPOSE:To obtain an ultrasonic probe which can pierce while a position to be observed is searched and wherein a transmitted or a pseudo-transmitted ultrasonic wave can be easily measured by arranging a pair of an ultrasonic convertor and an ultrasonic reflecting material or a pair of the first and the second ultrasonic convertors so as to face them in the direction being perpendicular to the axis of a puncture needle. CONSTITUTION:A plurality of pairs of thin film ultrasonic convertors 2 and 2' facing each other so as to placing the central axis between them are provided on the wall face of a hollow outer needle 10 and a low frequency ultrasonic convertor 3 for searching is also provided on the face in the axial direction of the apex part of a filled inner needle 20. Under a condition where apex positions of the inner needle 20 and the outer needle 10 are joined, a needle-like ultrasonic probe is pierced into the object to be examined and when the apex of the inner needle 20 reaches a site to be observed, it is stopped. Thereafter, when the outer needle 10 is pierced furthermore to an inner position to be observed, the tissue of living body at the position to be observed is introduced into the hollow outer needle 10 to result in a condition where this is placed up and down between a plurality of the facing pairs of the ultrasonic convertors. Under this condition, sound characteristics of the tissue of the living body introduced into the outer needle 10 are measured.

2. 发明专利

JP2008005885A Ultrasonic diagnostic apparatus 有权
标题翻译：超声诊断设备
公开(公告)号：JP2008005885A
公开(公告)日：2008-01-17
申请号：JP2006176505
申请日：2006-06-27
申请人： Hitachi Ltd , Hitachi Medical Corp , 株式会社日立メディコ , 株式会社日立製作所
发明人： SHINOMURA RYUICHI , ASAFUSA KATSUNORI , NAGATA TATSUYA
IPC分类号： A61B8/00
摘要： PROBLEM TO BE SOLVED: To improve S/N of ultrasonic images by correcting the distortion of ultrasonic transmission/reception sensitivity generated in a vibration element. SOLUTION: The ultrasonic diagnostic apparatus is provided with an ultrasonic probe 10, a transmission circuit 12, a reception circuit 14, an image processing means 16 and a monitor 18. For the ultrasonic probe 10, the plurality of vibration elements 22 for mutually converting ultrasonic waves and electric signals are arrayed, and each vibration element 22 has an insulation film 22c and a gap 22d between opposing electrode 22a and electrode 22b. The ultrasonic transmission/reception sensitivity is changed corresponding to the size of bias impressed between the electrodes, and a bias polarity changing means 26 for inverting the polarity of the bias impressed between the electrodes of the vibration element 22 by a predetermined trigger is provided. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过校正在振动元件中产生的超声波发送/接收灵敏度的失真来改善超声图像的S / N。解决方案：超声波诊断装置设置有超声波探头10，发送电路12，接收电路14，图像处理装置16和监视器18.对于超声波探头10，多个振动元件22用于排列相互转换的超声波和电信号，每个振动元件22在对置电极22a和电极22b之间具有绝缘膜22c和间隙22d。提供超声波发送/接收灵敏度对应于施加在电极之间的偏压的大小，并且提供用于将施加在振动元件22的电极之间的偏压的极性反转预定触发的偏置极性改变装置26。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JPS61181959A SIGNAL DETECTOR FOR ULTRASONIC APPARATUS 失效
公开(公告)号：JPS61181959A
公开(公告)日：1986-08-14
申请号：JP2176385
申请日：1985-02-08
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： TAKASUGI KAZUO , SHINOMURA RYUICHI , YOKOZAWA NORIO
IPC分类号： A61B8/00 , G01H11/08 , G01N29/44
摘要： PURPOSE:To minimize effect from the inter-electrode capacity of a piezo-electric element and the electrostatic capacity of a cable, by connecting a low-impedance element to both ends of the piezo-electric element to detect the current flowing therethrough. CONSTITUTION:A signal source impedance 100, a parallel impedance 200, a series impedance 300 and a receiving amplifier 400 whose input impedance is indicated by 401 are so arranged that an output develops at the output 402 of the amplifier corresponding to the value of the current flowing through the input impedance 401. The input impedance 401 of the amplifier shall be a load element so as to be sufficiently lower in the impedance value as compared with the equivalent signal source resistance 12 of a piezo-electric element and the series element 300. In this case, normally, it is easy to make the sum of impedance values of 401 and 300 lower than that of the parallel impedance 200. This enables efficient flowing of the signal current from an echo signal source 11 to the 401 thereby reducing the deterioration of signals due to parallel elements to a slight level.

4. 发明专利

JP2000060857A PROSTATE IMAGING INSTRUMENT AND PROSTATOMEGALY TREATING INSTRUMENT 失效
公开(公告)号：JP2000060857A
公开(公告)日：2000-02-29
申请号：JP23808098
申请日：1998-08-25
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： MIWA YUICHI , KURODA KATSUHIRO , UMEMURA SHINICHIRO , SASAKI KAZUAKI , KUBOTA JUN , ISHIDA KAZUNARI , SHINOMURA RYUICHI , KAWABATA KENICHI , AZUMA TAKASHI
IPC分类号： A61M25/00 , A61B8/12
摘要： PROBLEM TO BE SOLVED: To provide a prostatomegaly treating device for identifying a degenerated tissue from the hardness distribution of the prostate and judging a therepeutic effect form the comparison of a degenerated part and a part to be treated. SOLUTION: This device is provided with a catheter 2 with a balloon 3 to be inserted form the urethra of a subject, ultrasonic tomographic image parts 5 and 6 for inserting an ultrasonic probe 31 from the rectum 23 of the patient and tomographic images of the prostate 21, ultrasonic wave irradiation parts 5 and 6 for treating the hypertrophic of the prostate 21 by the irradiation of ultrasonic waves from the ultrasonic probe 31, a display part 4 for displaying the tomographic images and a control part 5 for controlling the operation of the catheter with the balloon and the the tomographic images. The size of the balloon is controlled, the prostate is pressurized from the urethra, the tomogram is imaged and the tomographic images before and after pressurization are displayed side by side at the display part. Thus, during prostate treatment by strong ultrasonic waves or after the treatment, the effect of the therapy is easily and accurately judged.

5. 发明专利

JPH01115347A TRANSMITTING AND RECEIVING CIRCUIT IN ULTRASONIC APPARATUS 失效
公开(公告)号：JPH01115347A
公开(公告)日：1989-05-08
申请号：JP27304887
申请日：1987-10-30
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： MATSUNAGA YOSHIKUNI , TAKASUGI KAZUO , SHINOMURA RYUICHI
IPC分类号： A61B8/00 , G01N29/04
摘要： PURPOSE:To make the integration of plural channels sufficient in an off-isolation characteristic optimum, by connecting one receiving circuit to a plurality of the driver circuits connected to vibrators through respective attenuator circuits each attenuating a leakage signal. CONSTITUTION:A plurality of transmission circuits 4 are connected to respective vibrators 10 through cables 50 and further connected to one receiving circuit 6. Voltage is applied to the vibrators 10 from a high voltage DC power supply VH through driver elements 41 and the cables 50. Herein, the transmission circuits 4 including the driver elements 41, 42 are connected to a plurality of the respective vibrators 10 so as to form a pair and the vibrators 10 are charged through the cables 50 and discharged through diodes D. Therefore, the application of pulse voltage to each of the vibrators 10 can be arbitrarily controlled by the control signal applied to each of the driver elements 41, 42.

6. 发明专利

JP2000083985A ULTRASONIC THERAPEUTIC APPLICATOR 失效
公开(公告)号：JP2000083985A
公开(公告)日：2000-03-28
申请号：JP25510998
申请日：1998-09-09
申请人： HITACHI MEDICAL CORP , HITACHI LTD
发明人： KUBOTA JUN , UMEMURA SHINICHIRO , ISHIDA KAZUNARI , MIWA YUICHI , KURODA KATSUHIRO , SHINOMURA RYUICHI , SASAKI KAZUAKI , KAWABATA KENICHI , AZUMA TAKASHI
IPC分类号： A61B18/00 , A61B8/00 , A61F7/00
摘要： PROBLEM TO BE SOLVED: To widen the therepeuticable range relating to the therapeutic section in the living body of an ultrasonic therapeutic applicator. SOLUTION: An ultrasonic vibrator transducer 2 for therapy which radiates converging ultrasonic waves to the therapeutic section 8 within the living body is disposed movably in a direction orthogonal with the longitudinal direction of a scanning drive shaft 3 which supports a probe 1 for diagnosis and the ultrasonic vibrator transducer 2 for therapy and scans and drives both in a longitudinal direction and around the axis. As a result, the converging ultrasonic waves radiated from the ultrasonic vibrator transducer 2 for therapy may be made to arrive at the desired therapeutic section 8 by evading a hindrance section 9. Then, the therepeuticable range relating to the therapeutic section in the living body of the ultrasonic therapeutic applicator may be widened.

7. 发明专利

JPH05228141A BONE DIAGNOSTIC DEVICE BY ULTRASONIC WAVE 失效
公开(公告)号：JPH05228141A
公开(公告)日：1993-09-07
申请号：JP3755792
申请日：1992-02-25
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： SHINOMURA RYUICHI , KANDA HIROSHI , YOKOZAWA NORIO
IPC分类号： A61B8/00 , A61B8/08 , A61B10/00 , G01N29/06 , G01N29/22 , G01N29/44
摘要： PURPOSE:To provide the bone diagnostic device for obtaining a diagnostic index of a bone without being influenced by a shape of the bone, without measuring a distance of two ultrasonic probes, and moreover, without being influenced by other soft tissue than the bone to the utmost. CONSTITUTION:A subject to be examined is placed between an ultrasonic probe 2 and an ultrasonic probe 3, transmission is executed by a frequency f1 by the ultrasonic probe 2, a signal which transmits through the subject is received by the ultrasonic probe 3, and subsequently, transmission is executed by a frequency f2 from the ultrasonic probe 2, reception is executed by the ultrasonic probe 3, a frequency shift f1' of a frequency between a first receiving signal of the ultrasonic probe 3 and f1 is derived, a frequency shift f2' of a frequency between the next receiving signal of the ultrasonic probe 3 and f2 is derived, and a ratio of f1' to f2' is derived.

8. 发明专利

JPS63145957A TRANSMISSION CIRCUIT IN ULTRASONIC APPARATUS 失效
公开(公告)号：JPS63145957A
公开(公告)日：1988-06-18
申请号：JP29233686
申请日：1986-12-10
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： SHINOMURA RYUICHI , TAKASUGI KAZUO , SAKAMOTO MITSUZO
IPC分类号： A61B8/00 , G01N29/04 , H04R3/00
摘要： PURPOSE:To form a good ultrasonic beam, by providing a means for short- circuiting a nonselection vibrator at the time of transmission or reception. CONSTITUTION:A driver circuit 10 is provided with respect to a vibrator 20 one at a time and a P-N push/pull circuit is composed of P-channel MOSFET Q1 and N-channel MOSFET Q2 to output a drive pulse. The pulse width Pw of said pulse is set to 1/2 f0 with respect to the center frequency f0 of the vibrator. FET Q1 is turned ON at a time t1 to supply a current to load. Next, FET Q1 is turned OFF at a time t2 to turn FET Q2 ON. When FET Q2 is turned ON, FET Q2 performs a so-called sink operation drawing a current from the load. When this ON-state continues, a receiving signal is allowed to pass to be guided to an amplifier 30. Herein, when the vibrator 20 does not participate in transmission, voltage is generated at an E-point by electrical and mechanical coupling. Then, FET Q2 is brought to an ON-state until a predetermined time and the vibrator 20 is earthed through a diode D1 to suppress effect.

9. 发明专利

JPS6177499A Ultrasonic probe 失效
标题翻译：超声探头
公开(公告)号：JPS6177499A
公开(公告)日：1986-04-21
申请号：JP19854784
申请日：1984-09-25
申请人： Hitachi Ltd , Hitachi Medical Corp
发明人： UMEMURA SHINICHIRO , TAKEUCHI HIROYUKI , SHINOMURA RYUICHI , KATAKURA KAGEYOSHI
IPC分类号： H04R17/00 , A61B8/00 , B06B1/06 , G01N29/24 , G01N29/26
CPC分类号： B06B1/0622
摘要： PURPOSE:To increase efficiency of a transmitting wave and a receiving wave by polarizing with an electric field impressed between electrodes AB and between electrodes BC in the ultrasonic probe having plurally divided second electrodes. CONSTITUTION:In addition to electrodes B divided plurally so that it can electrically drive to the second surface of the plate-shaped piezoelectric body independently, electrodes C having a shape separating them mutually and electrically are provided, an electric field is impressed even in the thickness direction and polarizing is executed. An arrow mark in the drawing shows an electric force line in polarizing typically. An electric field is impressed not only between adjoining electrodes B-C on the second surface but also between an electrode on the second surface and an electrode on the first surface B-C and C-A, and electrode processing is executed. By the effect of the processing, when signal electric potential on the basis of an electric potential of the electrode A is given to the electrode B or C, a transmitting wave efficiency or a receiving efficiency is widely improve compared with a conventional efficiency.
摘要翻译：目的：通过在电极AB之间施加的电场和具有多个分割的第二电极的超声波探头中的电极BC之间的偏振来提高发射波和接收波的效率。构成：除了能够独立地分别对板状压电体的第二面进行电驱动的电极B之外，还设置有相互电气地形成分开状态的电极C，即使在厚度方向和极化被执行。图中的箭头标记表示通常偏振的电力线。不仅在第二表面上的相邻电极B-C之间，而且在第二表面上的电极和第一表面B-C和C-A上的电极之间施加电场，并且执行电极处理。通过处理的效果，当基于电极A的电位的信号电位被提供给电极B或C时，与常规效率相比，发射波效率或接收效率大大提高。

10. 发明专利

JP2000126185A ULTRASONIC APPARATUS FOR TREATMENT 失效
公开(公告)号：JP2000126185A
公开(公告)日：2000-05-09
申请号：JP30361698
申请日：1998-10-26
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： AZUMA TAKASHI , KAWABATA KENICHI , UMEMURA SHINICHIRO , SASAKI KAZUAKI , KURODA KATSUHIRO , SHINOMURA RYUICHI , MIWA YUICHI , ISHIDA KAZUNARI , KUBOTA JUN
IPC分类号： H04N7/18 , A61B8/12 , A61B17/00 , A61B18/00 , A61B19/00 , A61N7/02
摘要： PROBLEM TO BE SOLVED: To achieve a higher precision of checking a part to be irradiated with a focused ultrasonic wave by providing a second ultrasonic transducer in a celomic catheter with a first ultrasonic transducer for irradiation of the focused ultrasonic wave for treatment while the second ultrasonic transducer is driven during the shooting period. SOLUTION: In the ultrasonic treatment of prostatomegaly or the like, firstly, a catheter 1 containing an ultrasonic transducer 2 is inserted into a urethra and an ultrasonic irradiation applicator 4 for treatment into a rectum separately. Then, a scanning operation of a photographing means 10 is implemented using a probe 6 for ultrasonic diagnosis in the applicator 4 and the obtained ultrasonic tomographic image near the prostate is shown on an image display part 10. The position of the applicator 4 is adjusted so that the geometric focus of the focusing type ultrasonic transducer 5 in the applicator 4 reaches a part to be treated using the ultrasonic tomographic image obtained. Thereafter, the focusing type ultrasonic transducer 5 is made to irradiate the ultrasonic wave for treatment.

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