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公开(公告)号：US09186046B2
公开(公告)日：2015-11-17
申请号：US12192033
申请日：2008-08-14
Applicant: Bhaskar S. Ramamurthy , Neal A. Tanner , Robert G. Younge , Randall L. Schlesinger
Inventor： Bhaskar S. Ramamurthy , Neal A. Tanner , Robert G. Younge , Randall L. Schlesinger
IPC: A61B1/01 , A61B1/04 , A61B1/00 , A61B5/06 , A61B6/12 , A61B19/00 , G01B11/16 , G01L1/24 , A61B8/08 , A61B18/08 , A61B8/00 , A61B5/00
CPC classification number: G01B11/16 , A61B1/00004 , A61B1/00013 , A61B1/00045 , A61B1/00057 , A61B1/00165 , A61B1/0017 , A61B5/0059 , A61B5/0064 , A61B5/06 , A61B5/065 , A61B5/066 , A61B5/4887 , A61B5/7285 , A61B6/12 , A61B8/00 , A61B8/48 , A61B18/082 , A61B34/20 , A61B34/30 , A61B34/37 , A61B34/71 , A61B34/77 , A61B90/39 , A61B90/96 , A61B90/98 , A61B2017/00725 , A61B2034/2061 , A61B2034/301 , A61B2034/715 , A61B2034/741 , A61B2090/374 , A61B2090/376 , A61B2090/378 , A61M2025/0166 , G01B11/165 , G01L1/242
Abstract: Robotic medical instrument systems and associated methods utilizing an optical fiber sensors such as Bragg sensor optical fibers. In one configuration, an optical fiber is coupled to an elongate instrument body and includes a fiber core having one or more Bragg gratings. A controller is configured to initiate various actions in response thereto. For example, a controller may generate and display a graphical representation of the instrument body and depict one or more position and/or orientation variables thereof, or adjust motors of an instrument driver to reposition the catheter or another instrument. Optical fibers having Bragg gratings may also be utilized with other system components including a plurality of working instruments that are positioned within a sheath lumen, an instrument driver, localization sensors, and/or an image capture device, and may also be coupled to a patient's body or associated structure that stabilizes the body.
Abstract translation: 机器人医疗仪器系统和利用诸如布拉格传感器光纤的光纤传感器的相关方法。 在一种配置中，光纤耦合到细长的仪器主体并且包括具有一个或多个布拉格光栅的光纤芯。 控制器被配置为响应于此而启动各种动作。 例如，控制器可以生成并显示仪器主体的图形表示并描绘其一个或多个位置和/或取向变量，或者调整仪器驱动器的马达以重新定位导管或另一个仪器。 具有布拉格光栅的光纤也可以与其他系统部件一起使用，包括定位在鞘腔内的多个工作仪器，仪器驱动器，定位传感器和/或图像捕获装置，并且还可以耦合到患者的 身体或相关结构，使身体稳定。
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公开(公告)号：US08811777B2
公开(公告)日：2014-08-19
申请号：US13594629
申请日：2012-08-24
Applicant: Robert G. Younge , Bhaskar S. Ramamurthy , Neal A. Tanner , Randall L. Schlesinger , Eric Udd
Inventor： Robert G. Younge , Bhaskar S. Ramamurthy , Neal A. Tanner , Randall L. Schlesinger , Eric Udd
CPC classification number: G02B6/022 , A61B5/1076 , A61B5/6852 , A61B2017/00039 , A61B2017/00053 , A61B2034/2061 , A61B2090/067
Abstract: A method for measuring bending is provided. The method includes receiving a reflected signal from a strain sensor provided on an optical fiber; determining a spectral profile of the reflected signal; and determining bending of the optical fiber based on a comparison of the spectral profile of the reflected signal with a predetermined spectral profile.
Abstract translation: 提供了一种测量弯曲的方法。 该方法包括从设置在光纤上的应变传感器接收反射信号; 确定反射信号的光谱分布; 以及基于所述反射信号的光谱轮廓与预定光谱轮廓的比较来确定所述光纤的弯曲。
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Patent Agency Ranking
公开(公告)号：US20130090528A1
公开(公告)日：2013-04-11
申请号：US13602921
申请日：2012-09-04
Applicant: Bhaskar S. Ramamurthy , Neal A. Tanner , Robert G. Younge , Randall L. Schlesinger
Inventor： Bhaskar S. Ramamurthy , Neal A. Tanner , Robert G. Younge , Randall L. Schlesinger
IPC: A61B1/00
CPC classification number: G01B11/16 , A61B1/00004 , A61B1/00013 , A61B1/00045 , A61B1/00057 , A61B1/00165 , A61B1/0017 , A61B5/0059 , A61B5/0064 , A61B5/06 , A61B5/065 , A61B5/066 , A61B5/4887 , A61B5/7285 , A61B6/12 , A61B8/00 , A61B8/48 , A61B18/082 , A61B34/20 , A61B34/30 , A61B34/37 , A61B34/71 , A61B34/77 , A61B90/39 , A61B90/96 , A61B90/98 , A61B2017/00725 , A61B2034/2061 , A61B2034/301 , A61B2034/715 , A61B2034/741 , A61B2090/374 , A61B2090/376 , A61B2090/378 , A61M2025/0166 , G01B11/165 , G01L1/242
Abstract: A method for mapping an internal structure of a patient with an elongate body is provided. The method includes detecting, at a plurality of instances, contact between a distal portion of an elongate body and an internal structure of the patient; determining a plurality of geometric configurations of the distal portion, the plurality of geometric configurations corresponding to the plurality of instances of contact between the distal portion and the internal structure; determining a plurality of positions of the distal portion, the plurality of positions corresponding to the plurality of geometric configurations; and generating a map of the internal structure based on the plurality of positions of the distal portion.
Abstract translation: 提供了一种用于利用细长体映射病人内部结构的方法。 该方法包括在多个实例中检测细长主体的远端部分和患者的内部结构之间的接触; 确定所述远侧部分的多个几何构型，所述多个几何构型对应于所述远侧部分和所述内部结构之间的多个接触实例; 确定所述远端部分的多个位置，所述多个位置对应于所述多个几何构型; 以及基于所述远侧部分的所述多个位置生成所述内部结构的图。
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公开(公告)号：US20120323116A1
公开(公告)日：2012-12-20
申请号：US13594600
申请日：2012-08-24
Applicant: Robert G. Younge , Bhaskar S. Ramamurthy , Randall L. Schlesinger , Neal A. Tanner
Inventor： Robert G. Younge , Bhaskar S. Ramamurthy , Randall L. Schlesinger , Neal A. Tanner
IPC: A61B6/12
CPC classification number: A61B5/06 , A61B5/065 , A61B34/20 , A61B2017/00243 , A61B2034/2046 , A61B2034/2051 , A61B2034/2072 , A61B2090/0812
Abstract: An instrument system that includes an elongate body, an optical fiber and a controller is provided. The optical fiber is at least partially separate from the elongate body. The controller is operatively coupled to the elongate body and to the optical fiber and the controller is adapted to receive a signal from the optical fiber, detect movement of the optical fiber based on the signal; and update a position of the elongate body relative to the optical fiber based on the detected movement.
Abstract translation: 提供了一种包括细长体，光纤和控制器的仪器系统。 光纤至少部分地与细长体分开。 控制器可操作地耦合到细长主体和光纤，并且控制器适于从光纤接收信号，基于该信号检测光纤的移动; 并且基于检测到的移动来更新细长主体相对于光纤的位置。
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公开(公告)号：US06733453B2
公开(公告)日：2004-05-11
申请号：US10234004
申请日：2002-09-03
Applicant: Paul D. Freiburger , Bhaskar S. Ramamurthy
Inventor： Paul D. Freiburger , Bhaskar S. Ramamurthy
IPC: A61B800
CPC classification number: G01S7/52046 , A61B8/00 , G01S7/52077 , G01S15/8925 , G01S15/8995
Abstract: Speckle is reduced by compounding. 1.25, 1.5, 1.75 and 2D arrays are used to obtain frames of data representing a same scan plane, but with different elevation spatial frequency content. The elevation aperture for one frame of data is different than an elevation aperture of another frame of data. The frames of data responsive to the different elevation apertures are compounded, reducing speckle.
Abstract translation: 斑点通过复合减少。 1.25,1.5,1.75和2D阵列用于获得表示相同扫描平面但具有不同高程空间频率内容的数据帧。 一帧数据的高程孔径不同于另一帧数据的高程孔径。 响应不同高程孔的数据帧复合，减少斑点。
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公开(公告)号：US06193659B1
公开(公告)日：2001-02-27
申请号：US09282397
申请日：1999-03-31
Applicant: Bhaskar S. Ramamurthy , Charles Bradley , Ken Sawatari , Danhua Zhao , Stuart L. Carp , Stirling S. Dodd , David J. Hedberg , Samuel H. Maslak , Daniel E. Need
Inventor： Bhaskar S. Ramamurthy , Charles Bradley , Ken Sawatari , Danhua Zhao , Stuart L. Carp , Stirling S. Dodd , David J. Hedberg , Samuel H. Maslak , Daniel E. Need
IPC: A61B800
CPC classification number: A61B8/481 , G01S7/5202 , G01S7/52038 , G01S15/8915 , G01S15/8927 , G01S15/895
Abstract: An improvement to the method for harmonic imaging including the steps of (a) transmitting ultrasonic energy at a fundamental frequency and (b) receiving reflected ultrasonic energy at a harmonic of the fundamental frequency is provided. The transmitting step includes the step of: applying the plurality of waveforms to a respective plurality of transducer elements, a first waveform of the plurality of waveforms characterized by a first value of a harmonic power ratio, waveforms transmitted from the transducer elements and corresponding to the plurality of waveforms summing as an acoustic waveform substantially at the point, the acoustic waveform characterized by a second value of the harmonic power ratio less than the first value. The imaging method can also include a step for subdividing the transmit aperture into two or more subapertures, each subaperture having at least four adjacent transducer elements. The subapertures are phased differently with respect to one another to selectively reduce either fundamental components or harmonic components of echoes from tissue. These techniques can be used to improve contrast agent harmonic imaging as well as tissue harmonic imaging, depending upon the phase shift selected.
Abstract translation: 提供了一种对谐波成像方法的改进，包括以下步骤：（a）以基频传输超声波能量;（b）在基频谐波处接收反射的超声波能量。 发送步骤包括以下步骤：将多个波形应用于相应的多个换能器元件，所述多个波形的第一波形以谐波功率比的第一值为特征，从换能器元件发送的波形对应于 多个波形基本上在该点处作为声波形求和，声波特征在于小于第一值的谐波功率比的第二值。 成像方法还可以包括将发射孔分成两个或更多个子孔径的步骤，每个子孔径具有至少四个相邻的换能器元件。 子孔径相对于彼此不同地相位选择性地降低来自组织的回波的基本分量或谐波分量。 这些技术可以用于根据选择的相移来改善造影剂谐波成像以及组织谐波成像。
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公开(公告)号：US5873830A
公开(公告)日：1999-02-23
申请号：US916358
申请日：1997-08-22
Applicant: John A. Hossack , Bhaskar S. Ramamurthy , John S. Wang , Kutay F. Ustuner , Ching-Hua Chou , James W. Arenson , Arvind Jain
Inventor： John A. Hossack , Bhaskar S. Ramamurthy , John S. Wang , Kutay F. Ustuner , Ching-Hua Chou , James W. Arenson , Arvind Jain
CPC classification number: G01S7/52085 , G01S7/52046 , G01S7/5205 , G01S7/52066 , G01S7/52074 , G01S7/52095 , G01S7/52034
Abstract: An ultrasound system and method are provided for improving resolution and operation. The system applies different imaging parameters within and outside a region of interest in an ultrasound image to improve spatial and/or temporal resolution inside a region of interest. The system also increases an apparent frame rate within a region of interest in an ultrasound-image frame by generating a motion-compensated interpolated image based on measured motion. The ultrasound imaging system also performs a method for automatically adjusting ultrasound imaging parameters in at least a portion of an ultrasound image in response to transducer or image motion to improve spatial or temporal resolution. With the measured motion, the system can also alter an operating mode of an ultrasound transducer array in response to an absence of transducer motion. Further, the system corrects distortion in an acquired ultrasound image caused by transducer or image motion.
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