公开(公告)号：US06450965B2

公开(公告)日：2002-09-17

申请号：US09834684

申请日：2001-04-13

申请人： Eric Williams ,  Thomas C. Moore ,  David A. White ,  Donald S. Mamayek ,  Donald Masters ,  Martin Belef ,  Veijo Suorsa

发明人： Eric Williams ,  Thomas C. Moore ,  David A. White ,  Donald S. Mamayek ,  Donald Masters ,  Martin Belef ,  Veijo Suorsa

IPC分类号： A61B812

CPC分类号： A61B8/4461 ,  A61B8/06 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4488 ,  A61B18/14

摘要： A catheter assembly includes an elongate catheter body having a proximal end and a distal end with a drive cable disposed therein, the drive cable having a proximal end and a distal end, and rotatable relative to the catheter body. A first electro-magnetic element is disposed proximate the distal end of the catheter, and a second electro-magnetic element disposed proximate the distal end of the drive cable and in electrical communication with an operative element mounted at the end of the drive cable, the first and second electro-magnetic elements forming an inductive coupler. The catheter assembly can include various other distal operative elements, which are in communication with corresponding proximal operative elements via transmission lines embedded within the wall of the catheter body.

公开(公告)号：US6036647A

公开(公告)日：2000-03-14

申请号：US127994

申请日：1998-07-31

申请人： Veijo Suorsa ,  Donald S. Mamayek

发明人： Veijo Suorsa ,  Donald S. Mamayek

IPC分类号： A61B8/12 ,  A61B8/14 ,  H04R17/00

CPC分类号： B06B1/0648 ,  A61B8/12 ,  G10K11/004 ,  A61B8/445 ,  Y10T29/42

摘要： A transducer assembly having an improved external connection configuration, a method for manufacturing such a transducer assembly, and a catheter system incorporating the transducer assembly. The improved connection configuration is achieved by creating a conductive path from an upper electrode of the transducer to an electrically conductive notch surface formed on an edge of the transducer assembly so that an external electrical lead can be attached to the active portion of the transducer element via the path.

摘要翻译： 具有改进的外部连接配置的传感器组件，用于制造这种换能器组件的方法以及结合有换能器组件的导管系统。 改进的连接配置通过从换能器的上电极到形成在换能器组件的边缘上的导电凹口表面形成导电路径来实现，使得外部电引线可以通过以下方式附接到换能器元件的有源部分： 路径。

公开(公告)号：US6124664A

公开(公告)日：2000-09-26

申请号：US71747

申请日：1998-05-01

申请人： Don S. Mamayek ,  Dennis Mendoza ,  Veijo Suorsa

发明人： Don S. Mamayek ,  Dennis Mendoza ,  Veijo Suorsa

IPC分类号： G10K11/18 ,  H01L41/107 ,  H04R17/00 ,  H01L41/08

CPC分类号： H04R17/00

摘要： A transducer backing material includes a sticky epoxy resin containing tungsten particles and silver particles. A method of applying a backing material to a transducer includes pouring a mixture of epoxy resin, tungsten particles, and silver particles into a mold containing a layer of piezoelectric material, degassing the mixture, and curing the mixture at a pressure of approximately one atmosphere until the mixture dries.

摘要翻译： 传感器背衬材料包括含有钨颗粒和银颗粒的粘性环氧树脂。 将背衬材料施加到换能器的方法包括将环氧树脂，钨颗粒和银颗粒的混合物倒入含有压电材料层的模具中，使混合物脱气，并在大约一个大气压下固化该混合物直到 混合物干燥。

公开(公告)号：US20070244415A1

公开(公告)日：2007-10-18

申请号：US11811373

申请日：2007-06-08

申请人： Michael Horzewski ,  Veijo Suorsa ,  Todd Thompson

发明人： Michael Horzewski ,  Veijo Suorsa ,  Todd Thompson

IPC分类号： A61H1/00

CPC分类号： A61H23/0236 ,  A61H2205/08 ,  A61N7/00

摘要： Systems and methods apply audible acoustic energy to cause vasodilation and/or to increase tissue perfusion.

摘要翻译： 系统和方法应用声音能量引起血管舒张和/或增加组织灌注。

公开(公告)号：US06251078B1

公开(公告)日：2001-06-26

申请号：US09290157

申请日：1999-04-12

申请人： Thomas C. Moore ,  Veijo Suorsa ,  Donald Masters

发明人： Thomas C. Moore ,  Veijo Suorsa ,  Donald Masters

IPC分类号： A61B800

CPC分类号： A61B8/12 ,  A61B8/4461

摘要： An ultrasound catheter wherein a rotatable transducer couples to the input of a preamplifier. Protection circuits at the input and output of the preamplifier protect the preamplifier from the transducer excitation signal. The preamplifier couples to the distal end of a transmission line. In an alternate embodiment, at least one switch responds to the presence of the transducer excitation signal by coupling the transducer excitation signal to the rotatable transducer and protecting the preamplifier from the transducer excitation signal. The at least one switch responds to the absence of the transducer excitation signal by coupling a received signal produced by the rotatable transducer to the input of the preamplifier. The at least one switch further responds to the absence of the transducer excitation signal by coupling the output of the preamplifier to the distal end of the transmission line.

摘要翻译： 超声导管，其中可旋转传感器耦合到前置放大器的输入端。 前置放大器输入和输出端的保护电路保护前置放大器免受传感器激励信号的影响。 前置放大器耦合到传输线的远端。 在替代实施例中，至少一个开关通过将换能器激励信号耦合到可旋转传感器并且保护前置放大器免受换能器激励信号的影响来响应换能器激励信号的存在。 至少一个开关通过将由可旋转换能器产生的接收信号耦合到前置放大器的输入来响应于不存在换能器激励信号。 至少一个开关还通过将前置放大器的输出耦合到传输线的远端来响应于不存在换能器激励信号。

公开(公告)号：US5474074A

公开(公告)日：1995-12-12

申请号：US207866

申请日：1994-03-08

申请人： Veijo Suorsa ,  Peter Thornton ,  Mark Lentz

发明人： Veijo Suorsa ,  Peter Thornton ,  Mark Lentz

IPC分类号： A61B8/12 ,  H04R1/00 ,  A61B8/00

CPC分类号： A61B8/12 ,  A61B8/4461 ,  A61B8/445 ,  Y10T29/42

摘要： An ultrasonic transducer includes a transducer element having a backing element bonded thereto. The thickness of the backing element is selected to be less than or equal to half the length of an ultrasonic pulse, expressed in wavelengths of the center frequency of the pulse, so that the first reflection from the back side of the backing element is received by the transducer element before the primary pulse rings down. A method for mounting the transducer that reduces the formation of air bubbles includes the steps of forming a peaked mound and continually lowering the transducer to flatten the mound against the underside of the transducer.

摘要翻译： 超声波换能器包括具有与其结合的背衬元件的换能器元件。 背衬元件的厚度选择为小于或等于以脉冲的中心频率的波长表示的超声波脉冲的长度的一半，使得来自背衬元件的背面的第一反射由 主脉冲之前的换能器元件环状。 用于安装减小气泡形成的换能器的方法包括以下步骤：形成峰值丘，并连续地降低换能器，以使堆块相对于换能器的下侧平坦化。

公开(公告)号：US20060211955A1

公开(公告)日：2006-09-21

申请号：US11438717

申请日：2006-05-22

申请人： Michael Horzewski ,  Alan Kaganov ,  Veijo Suorsa ,  Todd Thompson

发明人： Michael Horzewski ,  Alan Kaganov ,  Veijo Suorsa ,  Todd Thompson

IPC分类号： A61H1/00 ,  A61H1/02

CPC分类号： A61H23/0236 ,  A61B90/50 ,  A61B2017/00725 ,  A61B2017/00734 ,  A61B2018/00023 ,  A61N7/00 ,  A61N2007/0073

摘要： Systems and methods stimulate circulatory activity in a targeted body region of an individual by applying ultrasound energy. Before, during or after the application of ultrasound energy, the systems and methods administer an agent to individual that results, e.g., in an angiogenic effect, or in a reduction of blood perfusion, or a chemotherapy effect. The application of ultrasound energy selectively increases blood perfusion or uptake of the agent in the targeted body region.

公开(公告)号：US06790187B2

公开(公告)日：2004-09-14

申请号：US09938308

申请日：2001-08-23

申请人： Todd A Thompson ,  Veijo Suorsa ,  Michael J Howzewski

发明人： Todd A Thompson ,  Veijo Suorsa ,  Michael J Howzewski

IPC分类号： A61N700

CPC分类号： A61N7/00 ,  A61B90/50 ,  A61B2017/00725 ,  A61B2017/00734 ,  A61B2018/00023

摘要： Systems and methods for applying ultrasound energy to a body region. The systems and methods provide an ultrasound applicator including a housing, an ultrasound transducer carried by the housing, and a chamber sized to hold an acoustic coupling media subject to a pressure in acoustic communication with the ultrasound transducer. The systems and methods generate electrical signals to operate the ultrasound transducer to output acoustic energy at a selected intensity level. The systems and methods sense at least one system parameter and compare the sensed system parameter to a desired level. The systems and methods vary the pressure in the chamber based, at least in part, upon the comparison.

摘要翻译： 将超声能量应用于身体区域的系统和方法。 该系统和方法提供一种超声波施加器，其包括壳体，由壳体承载的超声波换能器，以及室，其尺寸设置成保持声耦合介质承受与超声换能器声学连通的压力。 系统和方法产生电信号以操作超声换能器以在选定的强度水平输出声能。 系统和方法感测至少一个系统参数，并将所感测的系统参数与期望的水平进行比较。 系统和方法至少部分地基于比较来改变腔室中的压力。

公开(公告)号：US06413575B1

公开(公告)日：2002-07-02

申请号：US09882344

申请日：2001-06-13

申请人： Don S. Mamayek ,  Veijo Suorsa

发明人： Don S. Mamayek ,  Veijo Suorsa

IPC分类号： B05D512

摘要： A method of applying a matching layer to a transducer includes placing the transducer on a fixture and covering the transducer with a stencil so that an opening in the stencil allows access to a metal-coated, piezoelectric surface of the transducer, and so that the stencil is affixed to the transducer surface. A roughly cylindrically shaped bead of epoxy is extruded onto the stencil at a predetermined distance from the opening, and a blade is positioned upstanding relative to the transducer surface and located so that the bead lies between the blade and the opening. The fixture is moved laterally so that the blade rolls the bead across the exposed transducer surface to form a layer of epoxy thereon. The fixture can then be moved back in the opposite direction to its initial position if desired. The assembly can also be subjected to a vacuum before the fixture is returned to its initial position. If desired, the fixture can be designed to vibrate during movement. Also if desired, the epoxy bead can initially be placed in a trough designed to decrease surface-area exposure to the air. Alternatively, the fixture can be kept stationary while the blade is moved.

公开(公告)号：US06321438B1

公开(公告)日：2001-11-27

申请号：US09071695

申请日：1998-05-01

申请人： Don S. Mamayek ,  Veijo Suorsa

发明人： Don S. Mamayek ,  Veijo Suorsa

IPC分类号： H04R3100

CPC分类号： G10K11/02 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/49007 ,  Y10T29/49144

摘要： A method of applying a matching layer to a transducer includes placing the transducer on a fixture and covering the transducer with a stencil so that an opening in the stencil allows access to a metal-coated, piezoelectric surface of the transducer, and so that the stencil is affixed to the transducer surface. A roughly cylindrically shaped bead of epoxy is extruded onto the stencil at a predetermined distance from the opening, and a blade is positioned upstanding relative to the transducer surface and located so that the bead lies between the blade and the opening. The fixture is moved laterally so that the blade rolls the bead across the exposed transducer surface to form a layer of epoxy thereon. The fixture can then be moved back in the opposite direction to its initial position if desired. The assembly can also be subjected to a vacuum before the fixture is returned to its initial position. If desired, the fixture can be designed to vibrate during movement. Also if desired, the epoxy bead can initially be placed in a trough designed to decrease surface-area exposure to the air. Alternatively, the fixture can be kept stationary while the blade is moved.