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公开(公告)号：US6011855A
公开(公告)日：2000-01-04
申请号：US819614
申请日：1997-03-17
CPC分类号： G10K15/02 , H04R17/00 , H04R2217/03
摘要： A speaker device for emitting subsonic, sonic or ultrasonic compression waves comprising a generally hollow drum, a rigid emitter plate attached to the drum, and a plurality of apertures formed within the plate which are covered by a thin piezoelectric film disposed across the emitter plate. A pressure source is coupled to the drum for developing a biasing pressure with respect to the thin film at the apertures to distend the film into an arcuate emitter configuration capable of constricting and extending in response to variations in the applied electrical input at the piezoelectric film to thereby create a compression wave in a surrounding environment. Parametric ultrasonic frequency input is supplied to the piezoelectric film to propagate multiple ultrasonic frequencies having a difference component corresponding to the desired subsonic, sonic or ultrasonic frequency range.
摘要翻译： 一种用于发射亚音速，声波或超声波压缩波的扬声器装置，其包括大致中空的鼓，附接到滚筒的刚性发射器板以及形成在该板内的多个孔，该多个孔由设置在发射极板上的薄压电薄膜覆盖。 压力源耦合到滚筒，用于相对于孔处的薄膜产生偏置压力，以将薄膜扩展成弓形发射器配置，其能够响应于在压电薄膜上施加的电输入的变化而收缩和延伸， 从而在周围环境中产生压缩波。 将参数超声波频率输入提供给压电膜，以传播具有对应于期望的亚音速，声波或超声波频率范围的差分分量的多个超声波频率。
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公开(公告)号：US5460595A
公开(公告)日：1995-10-24
申请号：US70533
申请日：1993-06-01
申请人： Duane O. Hall , Alan R. Selfridge
发明人： Duane O. Hall , Alan R. Selfridge
CPC分类号： A61N7/00 , A61B8/546 , A61H23/0245 , B06B1/0276 , A61N2007/0073
摘要： An ultrasound therapy system and method for providing therapeutic treatment to tissues using multiple, user-selectable frequencies generated from a single applicator sound head. The multi-frequency ultrasound therapy system and method includes a generator/control unit having a microprocessor for controlling and monitoring the generation and output of ultrasonic energy. A precision oscillator is connected to the microprocessor, and wave shaping circuitry is also provided to generate a wave-form for amplification by an output amplifier. The amplified high frequency wave-form is supplied to and drives an applicator sound head at an appropriate frequency for producing the desired therapeutic ultrasonic waves for treatment. Bonded to a cup member and positioned within the applicator sound head is a transducer crystal which converts high frequency wave-forms into mechanical (acoustic) vibrations, thus producing thermal energy in the form of heat for penetration into tissues under treatment. Both the transducer crystal and the applicator cup are designed with the capability of providing at least three different output frequencies from a single applicator sound head, while supplying three different penetration depths for treating a patient's tissues.
摘要翻译： 一种超声治疗系统和方法，用于使用从单个施用器声音头产生的多个用户可选择的频率向组织提供治疗性治疗。 多频超声治疗系统和方法包括具有用于控制和监视超声能量的产生和输出的微处理器的发生器/控制单元。 精密振荡器连接到微处理器，并且还提供波形整形电路以产生用于由输出放大器放大的波形。 将放大的高频波形以适当的频率供给并驱动施加器声音头，以产生所需的治疗超声波用于治疗。 粘合到杯构件并且定位在施加器声头内的是将高频波形转换为机械（声学）振动的换能器晶体，从而产生以热量形式的热能，以渗入处理组织。 传感器晶体和施加杯都被设计成具有从单个施加器声音头提供至少三个不同的输出频率的能力，同时提供用于治疗患者组织的三个不同的穿透深度。
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公开(公告)号：US5134988A
公开(公告)日：1992-08-04
申请号：US734630
申请日：1991-07-23
CPC分类号： A61B17/2251 , A61B17/2255 , A61B17/2258 , G10K11/30 , G10K15/043
摘要： An acoustical lens for focusing ultrasonic energy having a transducer, a curved focussing lens and a voltage generator coupled with the transducer. The transducer is comprised of an array of piezoelectric crystal elements. The focussing lens has a concave upper surface and a planar bottom surface allowing the array of piezoelectric elements to be coupled to the bottom surface of the array. The piezoelectric elements receive voltage from the voltage generator and transmit an energy ray through the focussing lens producing a focussed energy beam.
摘要翻译： 一种用于聚焦超声波能量的声透镜，其具有换能器，弯曲聚焦透镜和与换能器耦合的电压发生器。 传感器由压电晶体元件阵列组成。 聚焦透镜具有凹的上表面和平坦的底表面，允许压电元件的阵列耦合到阵列的底表面。 压电元件接收来自电压发生器的电压并透过聚焦透镜传输能量射线，产生聚焦的能量束。
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公开(公告)号：US5033456A
公开(公告)日：1991-07-23
申请号：US379572
申请日：1989-07-12
IPC分类号： A61B17/22 , A61B17/225 , G10K11/30 , G10K15/04
CPC分类号： A61B17/2251 , A61B17/2255 , A61B17/2258 , G10K11/30 , G10K15/043
摘要： An acoustical lens for focusing ultrasonic energy having a transducer, a curved focussing lens and a voltage generator coupled with the transducer. The transducer is comprised of an array of piezoelectric crystal elements. The focussing lens has a concave upper surface and a planar bottom surface allowing the array of piezoelectric elements to be coupled to the bottomsurface of the array. The piezoelectric elements receive voltage from the voltage generator and transmit an energy ray through the focussing lens producing a focussed energy beam.
摘要翻译： 一种用于聚焦超声波能量的声透镜，其具有换能器，弯曲聚焦透镜和与换能器耦合的电压发生器。 传感器由压电晶体元件阵列组成。 聚焦透镜具有凹的上表面和平坦的底表面，允许压电元件的阵列耦合到阵列的底表面。 压电元件接收来自电压发生器的电压并透过聚焦透镜传输能量射线，产生聚焦的能量束。
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公开(公告)号：US4887606A
公开(公告)日：1989-12-19
申请号：US296272
申请日：1989-01-11
申请人： Paul G. Yock , Alan R. Selfridge
发明人： Paul G. Yock , Alan R. Selfridge
CPC分类号： A61M25/0606 , A61B17/3403 , A61B8/0833 , A61B8/12 , A61M5/427 , A61B2017/3413
摘要： Apparatus for use in cannulation of blood vessels includes a hollow needle having a sharpened end for penetrating tissue, a trocar including a transducer mounted on one end for positioning within the hollow needle for transmitting and receiving ultrasonic waves through the sharpened end of the needle. The trocar further includes a support rod for the transducer and ultrasound damping material attaching the transducer to the support rod. Electrical conductors are provided through the support rod or on the surface of the support rod in contact with electrodes on the front and back surfaces of the transducer for transmitting electrical signals to and from the transducer. A syringe portion is detachably detached from the needle for receiving the back flow of blood when the needle is inserted into a blood vessel.
摘要翻译： 用于血管插管的装置包括具有用于穿透组织的锋利末端的中空针，套管针，其包括安装在一端上的换能器，用于定位在中空针内，用于通过针的尖端发射和接收超声波。 套针针还包括用于换能器的支撑杆和将换能器附接到支撑杆的超声阻尼材料。 电导体通过支撑杆或支撑杆的表面设置，与传感器的前表面和后表面上的电极接触，用于将电信号传送到换能器和从换能器传送电信号。 当针插入血管时，注射器部分与针头可拆卸地分离，用于接收血液回流。
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公开(公告)号：US5691959A
公开(公告)日：1997-11-25
申请号：US223897
申请日：1994-04-06
申请人： James A. Kriewall , Edwin F. Johnson , Alan R. Selfridge , John P. Fairbanks , Verne H. Wilson , Robert W. Parry , James D. Cummins
发明人： James A. Kriewall , Edwin F. Johnson , Alan R. Selfridge , John P. Fairbanks , Verne H. Wilson , Robert W. Parry , James D. Cummins
CPC分类号： G06F3/0433 , G06F3/043 , Y10S367/907
摘要： A digitizer uses acoustic waves originating from a stylus to determine the position of the stylus on a plate. The acoustic waves are introduced into the plate from the tip of the stylus and are detected by a plurality of detectors positioned at various points along the periphery of the plate. By sensing differences in the arrival times of the acoustic waves at the detectors, a microprocessor calculates the position of the stylus. In a preferred embodiment using a non-tethered stylus, four detectors are positioned at the corners of a rectangle, and the time differences are used as addresses in a lookup table, which is programmed to contain x and y coordinates corresponding to the time differences, Different embodiments may detect only the "fast" symmetrical waves or only the "slow" antisymmetrical waves generated in the plate, or may use the arrival times of both types of waves to determine the stylus position.
摘要翻译： 数字化仪使用来自触控笔的声波来确定触控笔在平板上的位置。 声波从触针的尖端引入到板中，并且通过位于板的周边的各个点处的多个检测器来检测。 通过检测检测器的声波到达时间的差异，微处理器计算出触针的位置。 在使用非系留触针的优选实施例中，四个检测器位于矩形的角部，并且时差被用作查找表中的地址，其被编程为包含对应于时间差的x和y坐标， 不同的实施例可以仅检测“快”对称波或仅检测板中产生的“慢”反对称波，或者可以使用两种类型的波的到达时间来确定触针位置。
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公开(公告)号：US5155708A
公开(公告)日：1992-10-13
申请号：US661075
申请日：1991-02-26
申请人： Ram L. Bedi , Alan R. Selfridge
发明人： Ram L. Bedi , Alan R. Selfridge
摘要： A hydrophone for calibrating lithotripters includes a spot poled disc of piezoelectric material which is mounted on a brass cylinder backing. A coaxial cable is electrically connected to one surface of the disc through the brass backing and the opposing surface of the disc. A mixture of polymeric material and microballoons is provided to protect the interconnection of the center conductor and the opposing surface of the disc and prevent damage due to the incident ultrasonic shock waves. The brass backing is placed in a suitable housing of phenolic material. A process in fabricating the piezoelectric disc and assembling the hydrophone is disclosed.
摘要翻译： 用于校准碎石机的水听器包括安装在黄铜圆筒背衬上的压电材料的点状圆盘。 同轴电缆通过黄铜背衬和盘的相对表面电连接到盘的一个表面。 提供聚合材料和微球的混合物以保护中心导体和盘的相对表面的互连，并防止由于入射的超声波冲击波而造成的损坏。 黄铜背衬放置在合适的酚醛材料外壳中。 公开了制造压电盘并组装水听器的过程。
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8.发明授权
公开(公告)号：US4664124A
公开(公告)日：1987-05-12
申请号：US683980
申请日：1984-12-20
申请人： Frank W. Ingle , Alan R. Selfridge
发明人： Frank W. Ingle , Alan R. Selfridge
IPC分类号： G01N9/24 , G01N29/024 , G01N33/487 , A61B6/00
CPC分类号： G01N33/493 , G01N29/024 , G01N9/24 , G01N2291/02818 , G01N2291/02836 , G01N2291/02881
摘要： An automatic urinary output monitor including a means for noninvasively determining the specific gravity of urine in a urine collection system including an oscillator with a feedback loop including ultrasonic transducers at opposite sides of a sampling chamber for producing an output signal with a frequency determined by the period of time it takes for a transmitted ultrasonic pulse to travel through the urine sample and to be received and means responsive to the frequency of the output signal for providing an indication of specific gravity of the urine sample.
摘要翻译： 一种自动泌尿输出监测器，包括用于在尿液收集系统中非侵入性地确定尿液的比重的装置，其包括具有反馈回路的振荡器，所述反馈回路包括在采样室的相对侧的超声换能器，用于产生具有由周期确定的频率的输出信号 传输的超声波脉冲穿过尿样并被接收所需的时间，以及响应于输出信号的频率的装置，用于提供尿样的比重的指示。
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