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1. 发明申请

WO2007014183A2 ULTRASONIC TRANSDUCER CONTROL METHOD AND SYSTEM 审中-公开
标题翻译：超声波传感器控制方法与系统
公开(公告)号：WO2007014183A2
公开(公告)日：2007-02-01
申请号：PCT/US2006/028750
申请日：2006-07-25
申请人： PIEZOINNOVATIONS
发明人： BROMFIELD, George
IPC分类号： H01L41/00
CPC分类号： B06B1/0238
摘要： The present invention relates to methods for velocity control of transducers that can compensate both for age related changes as well as the more immediate changes that occur during operation, hi one aspect of the invention, the non-motional reactive current is measured at two predetermined frequencies, one below (I jf ) and one above the resonance frequency (I hf ). A correction factor is calculated from these measured currents is used to maintain a specified value of end effector velocity or displacement. In another aspect of the invention, methods are provided for the detection of secondary resonances that could be indicative of end effector fault conditions. In another aspect of the invention velocity control is achiev
摘要翻译：本发明涉及能够补偿年龄相关变化以及在操作期间发生的更直接的变化的换能器的速度控制方法。在本发明的一个方面，非运动无功电流以两个预定频率，其中一个（I SUB）和一个高于谐振频率（I Hf）。从这些测量的电流计算的校正因子用于维持末端执行器速度或位移的指定值。在本发明的另一方面，提供了用于检测可指示末端执行器故障状况的次级共振的方法。在本发明的另一方面，可以实现速度控制

2. 发明申请

WO2007014142A3 ULTRASONIC TRANSDUCER DEVICES AND METHODS OF MANUFACTURE 审中-公开
公开(公告)号：WO2007014142A3
公开(公告)日：2007-02-01
申请号：PCT/US2006/028643
申请日：2006-07-24
申请人： PIEZOINNOVATIONS
发明人： BROMFIELD, George
IPC分类号： H01L41/08
摘要： The present invention provides for single use ultrasonic transducers for use in surgical and dental applications. Specifically, the invention provides transducers comprising one or more of the following features, an active piezo ceramic material that contains less than 2% lead; piezo materials with a low Curie temperature, a high compressive bias force applied to the piezo ceramic elements, a bias bolt sub-assembly that includes a component assembled with a low-temperature glass-transition point filled epoxy material, and/or a permanently attached end effector with a self-locking taper.

3. 发明公开

EP1908130A2 ULTRASONIC TRANSDUCER DEVICES AND METHODS OF MANUFACTURE 审中-公开
标题翻译：超声波换能器器件及其制造方法
公开(公告)号：EP1908130A2
公开(公告)日：2008-04-09
申请号：EP06788288.6
申请日：2006-07-24
申请人： Piezoinnovations
发明人： BROMFIELD, George
IPC分类号： H01L41/08
CPC分类号： A61B17/320068 , A61B2017/0023 , A61B2017/22015 , A61B2017/22027 , A61C17/20 , B06B1/0618 , B06B1/0655
摘要： The present invention provides for single use ultrasonic transducers for use in surgical and dental applications. Specifically, the invention provides transducers comprising one or more of the following features, an active piezo ceramic material that contains less than 2% lead; piezo materials with a low Curie temperature, a high compressive bias force applied to the piezo ceramic elements, a bias bolt sub-assembly that includes a component assembled with a low-temperature glass-transition point filled epoxy material, and/or a permanently attached end effector with a self-locking taper.

4. 发明申请

WO2007087411A3 METHODS OF MANUFACTURE OF SONAR AND ULTRASONIC TRANSDUCER DEVICES AND COMPOSITE ACTUATORS 审中-公开
公开(公告)号：WO2007087411A3
公开(公告)日：2007-08-02
申请号：PCT/US2007/002068
申请日：2007-01-23
申请人： PIEZOINNOVATIONS
发明人： BROMFIELD, George
IPC分类号： H01L41/083
摘要： The present invention provides a method of manufacturing piezoelectric transducers that improves performance by reducing the mechanical losses in the component interfaces. The method involves the epoxy impregnation and encapsulation of the components within the piezoelectric stack assembly. Impregnation is achieved by capillary action that results in a chemical bond. The encapsulation method results in an epoxy conformal coating that provides a high degree of protection from harsh operational environments and reduces the risk of high voltage electric breakdown.

5. 发明公开

EP2248351A1 ULTRASONIC TORSIONAL MODE AND LONGITUDINAL-TORSIONAL MODE TRANSDUCER SYSTEMS 审中-公开
标题翻译：超声波扭转模式和纵向扭转模式传感器系统
公开(公告)号：EP2248351A1
公开(公告)日：2010-11-10
申请号：EP09766972.5
申请日：2009-02-20
申请人： Piezoinnovations
发明人： BROMFIELD, George
IPC分类号： H04R25/00
CPC分类号： B06B1/0611 , A61B17/320068 , A61B2017/320098 , A61C1/07
摘要： The present invention relates to the design of piezoelectric transducer subassemblies and systems primarily intended for medical and dental applications. The invention also provides transducer subassemblies and systems with improved performance and a capability to operate more efficiently in torsional or a combined longitudinal-torsional mode of vibration. The invention enables the size and weight of torsional mode transducers to be reduced. Additionally, the electrical characteristics of these transducer systems are improved, thus enabling the transducer end effector to deliver more power to the operative site.
摘要翻译：本发明涉及主要用于医疗和牙科应用的压电换能器组件和系统的设计。本发明还提供了具有改进性能的换能器子组件和系统以及在扭转或组合纵向扭转振动模式下更有效地操作的能力。本发明能够减小扭转模式换能器的尺寸和重量。此外，这些换能器系统的电气特性得到改善，从而使换能器末端执行器能够向手术部位提供更多功率。

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