公开(公告)号：US06676626B1

公开(公告)日：2004-01-13

申请号：US09374642

申请日：1999-08-16

Applicant: Frederick J. Bennett ,  James E. Rodriguey

Inventor： Frederick J. Bennett ,  James E. Rodriguey

IPC: A61B1720

CPC classification number: A61B17/22012 ,  A61B17/2202 ,  A61B2017/22021 ,  A61B2017/22062 ,  A61B2017/22082 ,  A61B2017/22084 ,  A61B2017/22088 ,  A61B2017/320084 ,  A61B2018/00011 ,  A61K41/0047 ,  A61M25/0009 ,  A61M25/007 ,  A61M37/0092 ,  A61M2025/0057 ,  A61M2205/058 ,  B06B1/0674 ,  B06B1/0677 ,  B06B2201/76 ,  G10K11/004 ,  G10K11/02 ,  G10K11/162

Abstract: A catheter system is disclosed. The catheter system includes a catheter body having an external surface and an ultrasound transducer having a side between a first end and a second end. A first medium is positioned adjacent to the first end of the ultrasound transducer and a second medium is positioned adjacent to the external side of the ultrasound transducer. The second medium is harder than the first medium to encourage flexibility of the catheter body adjacent to the first end of the ultrasound transducer and efficient transmission of ultrasound energy from the external side of the ultrasound transducer.

Abstract translation: 公开了导管系统。 导管系统包括具有外表面的导管主体和具有在第一端和第二端之间的一侧的超声换能器。 第一介质定位成与超声换能器的第一端相邻，并且第二介质定位成与超声换能器的外侧相邻。 第二介质比第一介质更硬，以鼓励邻近超声换能器的第一端的导管主体的灵活性，并从超声换能器的外侧有效地传输超声能量。

公开(公告)号：US20030187352A1

公开(公告)日：2003-10-02

申请号：US10063154

申请日：2002-03-26

Inventor： Kjell Arne Ingebrigtsen ,  Arne Ronnekleiv

IPC: A61B008/00

CPC classification number: G01N29/24 ,  A61B8/4494 ,  B06B1/0681 ,  B06B1/0688 ,  B06B2201/76 ,  G01N29/06 ,  G01N29/343 ,  G01N2291/101 ,  G01N2291/106

Abstract: A transducer element for ultrasound reception comprises a first active transducer layer connected to a first receiver, and a second active transducer layer laminated to the first active transducer layer and connected to a second receiver. A transducer element for ultrasound transmission comprises a first active transducer layer connected to a first transmitter, and a second active transducer layer laminated to the first transducer layer and connected to a second transmitter. Further aspects of the present invention include a transducer element for ultrasound transmission and reception, a transducer array for ultrasound transmission and reception, and methods for transmitting and receiving ultrasound signals.

Abstract translation: 用于超声波接收的换能器元件包括连接到第一接收器的第一有源换能器层和层压到第一有源换能器层并连接到第二接收器的第二有源换能器层。 用于超声波传输的换能器元件包括连接到第一发射器的第一有源换能器层和层压到第一换能器层并连接到第二发射器的第二有源换能器层。 本发明的另外方面包括用于超声波发射和接收的换能器元件，用于超声波发射和接收的换能器阵列，以及用于发送和接收超声信号的方法。

公开(公告)号：US20030167023A1

公开(公告)日：2003-09-04

申请号：US10383292

申请日：2003-03-06

Inventor： Frederick J. Bennett ,  John Zhang ,  Gary Lichttenegger ,  James E. Rodriguey ,  Katsuro Tachibana

IPC: A61H001/00

CPC classification number: A61M37/0092 ,  A61B17/22012 ,  A61B17/2202 ,  A61B2017/00526 ,  A61B2017/22021 ,  A61B2017/22042 ,  A61B2017/22062 ,  A61B2017/22082 ,  A61B2017/22084 ,  A61B2017/22088 ,  A61B2017/320084 ,  A61B2018/00011 ,  A61K41/0047 ,  A61M25/0009 ,  A61M25/007 ,  A61M2025/0057 ,  A61M2205/058 ,  B06B1/0674 ,  B06B1/0677 ,  B06B2201/76 ,  G10K11/004 ,  G10K11/02 ,  G10K11/162

Abstract: The invention relates to a catheter system. The system comprises a catheter body having a chamber containing a low acoustic impedance medium. The catheter body includes an elongated body with an external surface and an ultrasound transducer having an external side between a first end and a second end. The ultrasound transducer is positioned over the external surface of the elongated body such that the first end is adjacent to the chamber.

Abstract translation: 本发明涉及一种导管系统。 该系统包括具有包含低声阻抗介质的室的导管主体。 导管主体包括具有外表面的细长主体和具有在第一端和第二端之间的外侧的超声换能器。 超声换能器定位在细长体的外表面上，使得第一端与腔室相邻。

公开(公告)号：US20030114760A1

公开(公告)日：2003-06-19

申请号：US10036281

申请日：2001-12-19

Inventor： Andrew L. Robinson

IPC: A61B008/14

CPC classification number: G10K11/002 ,  B06B1/0685 ,  B06B1/0692 ,  B06B2201/76 ,  Y10T29/42

Abstract: The invention is directed towards improved structures for use with micro-machined ultrasonic transducers (MUTs), and methods for fabricating the improved structures. In one embodiment, a MUT on a substrate includes an acoustic cavity formed within the substrate at a location below the MUT. The cavity is filled with an acoustic attenuation material to absorb acoustic waves in the substrate, and to reduce parasitic capacitance. In another embodiment, the cavity is formed below a plurality of MUTs, and filled with an attenuation material. In still another embodiment, an attenuation material substantially encapsulates a plurality of MUTs on a dielectric layer. In yet other embodiments, at least one monolithic semiconductor circuit is formed in the substrate that may be operatively coupled to the MUTs to perform signal processing and/or control operations.

公开(公告)号：US06545390B1

公开(公告)日：2003-04-08

申请号：US09547151

申请日：2000-04-11

Applicant: Rainer Hahn ,  Uwe Grotz

Inventor： Rainer Hahn ,  Uwe Grotz

IPC: H02N206

CPC classification number: A61C17/20 ,  B06B1/0253 ,  B06B1/0611 ,  B06B2201/55 ,  B06B2201/76

Abstract: A device for generating high-frequency mechanical vibrations for dental purposes comprises a current detector (50) fitted in the supply line of a vibration generator (12). The output signal of the current detector (50) is transmitted to one of the inputs of a control circuit (74), which at its other input receives a supply current nominal value signal. The output of the control circuit (74) is connected to the control terminal of a controllable oscillator (42), which together with a power stage (46 to 48) prepares the supply current for the vibration generator (12). In this manner, a constant output amplitude of the vibration generator is obtained independent of the load coupled to said vibration generator at any given time.

Abstract translation: 用于产生用于牙科目的的高频机械振动的装置包括安装在振动发生器（12）的供应管线中的电流检测器（50）。 电流检测器（50）的输出信号被发送到控制电路（74）的一个输入端，控制电路在其另一输入处接收电源电流标称值信号。 控制电路（74）的输出连接到可控振荡器（42）的控制端子，可控振荡器（42）与功率级（46至48）一起为振动发生器（12）准备供电电流。 以这种方式，独立于在任何给定时间耦合到所述振动发生器的负载，获得振动发生器的恒定输出振幅。

公开(公告)号：US20030048698A1

公开(公告)日：2003-03-13

申请号：US09949420

申请日：2001-09-07

Applicant: Siemens Medical Systems, Inc.

Inventor： Stephen R. Barnes ,  Robert N. Phelps ,  Mirsaid Seyed Bolorforosh

IPC: H04R019/00

CPC classification number: H04R23/00 ,  B06B1/0215 ,  B06B1/0292 ,  B06B2201/51 ,  B06B2201/76 ,  G01S7/52033 ,  G01S7/52038 ,  G01S7/52039 ,  G01S15/8915 ,  G01S15/895 ,  H04R2201/021

Abstract: A method and system for controlling bias voltage for use with an electrostatic transducer are provided. The bias voltage is dynamically varied or set as a function of imaging mode, depth gain compensation, elevational apodization, azimuthal apodization, timing with respect to the transmit waveform, center frequency of transmit and receive waves and desired modulation. Opposite polarity on sub-elements is also provided for removing signals from electromagnetic interference and crosstalk between elements.

Abstract translation: 提供了一种用于控制与静电换能器一起使用的偏置电压的方法和系统。 偏置电压根据成像模式，深度增益补偿，高程变迹，方位角变迹，发射波形的定时，发射和接收波的中心频率以及期望的调制而动态变化或设置。 还提供了子元件上的相反极性，用于从电磁干扰和元件之间的串扰中去除信号。

公开(公告)号：US06480796B2

公开(公告)日：2002-11-12

申请号：US09866372

申请日：2001-05-25

Applicant: Eitan T. Wiener

Inventor： Eitan T. Wiener

IPC: G01R904

CPC classification number: A61B17/320068 ,  A61B2017/00026 ,  A61B2017/00725 ,  B06B1/0253 ,  B06B2201/76

Abstract: The start up performance of an ultrasonic system under zero load conditions is improved by setting a phase set point in a frequency control loop such that, at start up under zero load conditions, the phase set point intersects a point on a phase-frequency response curve which has a low positive slope. This intersection point on the phase-frequency response curve changes as the load is increased and the system Q is decreased. The controller “seeks” a target 0° impedance phase angle. The frequency of the ultrasonic generator is set to an off-resonance frequency which is lower than the resonance of any known hand piece/blade combination. In order for the drive voltage to not exceed the physical limit of the system, the drive current is set to a low level. The drive frequency is then smoothly increased in steps until the target 0° impedance phase delta is located.

Abstract translation: 通过在频率控制回路中设置相位设定点来提高零负载条件下超声波系统的启动性能，使得在零负载条件下启动时，相位设定点与相位频率响应曲线上的点相交 它具有低的正斜率。 该相位频率响应曲线上的交点随着负载的增加而改变，系统Q减小。 控制器“寻找”目标0°阻抗相位角。 超声波发生器的频率设定为低于任何已知的手持件/叶片组合的共振的非共振频率。 为了使驱动电压不超过系统的物理极限，驱动电流设置为低电平。 然后逐步平稳地增加驱动频率，直到找到目标0°阻抗相位增量。

公开(公告)号：US06461299B1

公开(公告)日：2002-10-08

申请号：US09469994

申请日：1999-12-22

Applicant: John A. Hossack

Inventor： John A. Hossack

IPC: A61B800

CPC classification number: G01S15/895 ,  B06B1/0215 ,  B06B2201/20 ,  B06B2201/51 ,  B06B2201/76 ,  G01S7/52017 ,  G01S7/52025 ,  G01S7/52034

Abstract: A method and system for generating transmit pulses for use with an electrostatic transducer in harmonic imaging are provided. The excitation waveforms are pre-distorted to account for the non-linear output of the electrostatic transducer. Additionally, the force on a multiple element electrostatic transducer array is measured. A bias voltage is applied to the electrostatic transducer where the bias voltage is responsive to the measured force.

Abstract translation: 提供了一种用于产生用于谐波成像中的静电换能器的发射脉冲的方法和系统。 励磁波形是预失真的，以解决静电换能器的非线性输出。 另外，测量多元素静电换能器阵列上的力。 偏置电压施加到静电换能器，其中偏置电压响应于测量的力。

公开(公告)号：US20020082501A1

公开(公告)日：2002-06-27

申请号：US09752481

申请日：2000-12-27

Applicant: SIEMENS MEDICAL SYSTEMS, INC.

Inventor： Charles D. Emery

IPC: A61B008/00

CPC classification number: B06B1/0215 ,  A61B5/6843 ,  A61B8/4281 ,  B06B2201/40 ,  B06B2201/76

Abstract: A method and system for controlling probe heating in an ultrasound system is disclosed. The method and system comprises electrically exciting a transducer within the probe; and detecting at least one pulse characteristic from the excited transducer. The method and system further includes analyzing at least one pulse characteristic to determine if the probe is coupling into a reflecting medium such as air or into tissue. Accordingly, a system and method in accordance with the present invention detects when an ultrasound transducer is coupling energy into a patient or into a reflecting medium such as air. In so doing, the thermal performance of the transducer improves by allowing an increase in the duration and level of the transducer excitation voltage.

Abstract translation: 公开了一种用于控制超声系统中的探针加热的方法和系统。 该方法和系统包括电激发探针内的换能器; 以及从所激发的换能器检测至少一个脉冲特性。 该方法和系统还包括分析至少一个脉冲特征以确定探针是否耦合到诸如空气或组织的反射介质中。 因此，根据本发明的系统和方法检测超声波换能器何时将能量耦合到患者体内或将反射介质如空气耦合。 在这样做时，通过允许增加传感器激励电压的持续时间和电平来改善传感器的热性能。

公开(公告)号：US06394974B1

公开(公告)日：2002-05-28

申请号：US09298669

申请日：1999-04-23

Applicant: Kenneth E. Kadziauskas ,  James W. Staggs

Inventor： Kenneth E. Kadziauskas ,  James W. Staggs

IPC: G06F1900

CPC classification number: B06B1/0246 ,  A61B2018/00636 ,  A61B2018/00666 ,  A61F9/00745 ,  B06B1/0253 ,  B06B2201/55 ,  B06B2201/76

Abstract: Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical system for ultrasonically vibrating said needle along with a power source for providing electrical power to the handpiece electrical system. Irrigation fluid is provided to the handpiece needle and aspirating fluid is removed from the handpiece needle. A determination of a voltage current phase relationship of the provided electrical power is made and in response thereto a control system varies a power level duty cycle provided to the handpiece electrical system from the power source and/or modify the aspiration flow rate.

Abstract translation: 晶状体乳化装置包括具有针的晶状体乳化手术器具和用于与用于向手持式电气系统提供电力的电源超声振动所述针头的电气系统。 向手持针提供灌流液，并从手持针上取出吸液。 进行所提供的电力的电压电流相位关系的确定，并且响应于此，控制系统改变从电源提供给手持式电气系统的功率电平占空比和/或改变吸入流量。