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    • 41. 发明授权
    • Nonlinear system identification techniques and devices for discovering dynamic and static tissue properties
    • 用于发现动态和静态组织性质的非线性系统识别技术和装置
    • US08758271B2
    • 2014-06-24
    • US12872630
    • 2010-08-31
    • Ian W. HunterYi Chen
    • Ian W. HunterYi Chen
    • A61B5/103
    • A61B5/103A01G7/00A61B5/0048A61B5/0053A61B5/0055A61B5/0057A61B5/442A61B5/6824A61B9/00G01N3/24G01N3/40G01N2203/0069G01N2203/0218G01N2203/0246G01N2203/0278
    • A device for measuring a mechanical property of a tissue includes a probe configured to perturb the tissue with movement relative to a surface of the tissue, an actuator coupled to the probe to move the probe, a detector configured to measure a response of the tissue to the perturbation, and a controller coupled to the actuator and the detector. The controller drives the actuator using a stochastic sequence and determines the mechanical property of the tissue using the measured response received from the detector. The probe can be coupled to the tissue surface. The device can include a reference surface configured to contact the tissue surface. The probe may include a set of interchangeable heads, the set including a head for lateral movement of the probe and a head for perpendicular movement of the probe. The perturbation can include extension of the tissue with the probe or sliding the probe across the tissue surface and may also include indentation of the tissue with the probe. In some embodiments, the actuator includes a Lorentz force linear actuator. The mechanical property may be determined using non-linear stochastic system identification. The mechanical property may be indicative of, for example, tissue compliance and tissue elasticity. The device can further include a handle for manual application of the probe to the surface of the tissue and may include an accelerometer detecting an orientation of the probe. The device can be used to test skin tissue of an animal, plant tissue, such as fruit and vegetables, or any other biological tissue.
    • 用于测量组织的机械特性的装置包括配置成相对于组织表面移动来干扰组织的探针,耦合到探针以移动探针的致动器,被配置成测量组织的响应的检测器 扰动和耦合到致动器和检测器的控制器。 控制器使用随机序列驱动致动器,并使用从检测器接收的测量响应来确定组织的机械特性。 探针可以耦合到组织表面。 该装置可以包括构造成接触组织表面的参考表面。 探针可以包括一组可互换的头部,该组件包括用于探针的横向运动的头部和用于探针的垂直运动的头部。 扰动可以包括用探针延伸组织或者将探针滑过组织表面,还可以包括用探针的组织​​的凹陷。 在一些实施例中,致动器包括洛伦兹力线性致动器。 可以使用非线性随机系统识别来确定机械特性。 机械性能可以指示例如组织依从性和组织弹性。 该装置还可以包括用于将探针手动施加到组织表面的手柄,并且可以包括检测探针取向的加速度计。 该装置可用于测试动物,植物组织如水果和蔬菜或任何其他生物组织的皮肤组织。
    • 44. 发明申请
    • Plaque Removal and Differentiation of Tooth and Gum
    • 牙齿和牙齿的牙斑去除和分化
    • US20110311939A1
    • 2011-12-22
    • US12969111
    • 2010-12-15
    • Ian W. Hunter
    • Ian W. Hunter
    • A61C17/02A61C17/00
    • A61C17/02A61C19/063
    • A method of tooth treatment includes sensing a surface condition of tooth or gum and controlling ejection of a fluid jet against the tooth based on the sensed condition. The fluid may be a liquid and may be carried in a self-contained reservoir in a handle of a fluid ejection device. The liquid can be a cleansing solution and may contain cleaning particles. The ejection can be controlled to clean teeth at high pressure and to reduce pressure applied to gum, for example, to clean plaque. In some embodiments, the method may be used to remove soft tooth. The method may further include automatically scanning the fluid jet relative to a handle of an injection device. In an embodiment, the fluid is ejected by means of a fluid ejector comprising a stationary magnet assembly providing a magnetic field and a coil assembly, slidably disposed with respect to the magnet assembly, the coil assembly driving ejection of the fluid jet. Sensing the surface condition can include measuring a response of tissue to a mechanical perturbation and may include sensing an acoustic signal reflected from tissue. The mechanical perturbation can include applied force and the measured response can include deformation of the tissue. The method may further include mechanically disturbing the tissue with the fluid jet. A tooth treatment device includes a fluid ejector that ejects fluid against teeth and a servo controller controlling pressure of ejected fluid in response to a sensed surface condition. The fluid jet can have a diameter of less than 500 microns, a peak relative pressure of at least 1 kilopascal and velocity of at least 1 meter per second.
    • 牙齿治疗的方法包括感测牙齿或牙龈的表面状况,并根据检测到的状况控制针对牙齿的流体射流的喷射。 流体可以是液体,并且可以在流体喷射装置的手柄中的独立储存器中携带。 液体可以是清洁溶液并且可以含有清洁颗粒。 可以控制喷射以在高压下清洁牙齿并减少施加到牙龈上的压力,例如清洁斑块。 在一些实施例中,该方法可用于去除软齿。 该方法还可以包括相对于注射装置的手柄自动扫描流体射流。 在一个实施例中,通过包括提供磁场的固定磁体组件和相对于磁体组件可滑动地设置的线圈组件的流体喷射器喷射流体,线圈组件驱动喷射流体射流。 感测表面状况可以包括测量组织对机械扰动的响应,并且可以包括感测从组织反射的声信号。 机械扰动可以包括施加的力,并且测量的响应可以包括组织的变形。 该方法还可以包括用流体射流机械地干扰组织。 牙齿治疗装置包括喷射流体抵抗牙齿的流体喷射器和响应于检测到的表面状况控制喷射流体的压力的伺服控制器。 流体射流可以具有小于500微米的直径,至少1千帕斯卡的峰值相对压力和至少1米/秒的速度。
    • 47. 发明申请
    • Nonlinear System Identification Techniques and Devices for Discovering Dynamic and Static Tissue Properties
    • 用于发现动态和静态组织特性的非线性系统识别技术和设备
    • US20110054354A1
    • 2011-03-03
    • US12872630
    • 2010-08-31
    • Ian W. HunterYi Chen
    • Ian W. HunterYi Chen
    • A61B5/103
    • A61B5/103A01G7/00A61B5/0048A61B5/0053A61B5/0055A61B5/0057A61B5/442A61B5/6824A61B9/00G01N3/24G01N3/40G01N2203/0069G01N2203/0218G01N2203/0246G01N2203/0278
    • A device for measuring a mechanical property of a tissue includes a probe configured to perturb the tissue with movement relative to a surface of the tissue, an actuator coupled to the probe to move the probe, a detector configured to measure a response of the tissue to the perturbation, and a controller coupled to the actuator and the detector. The controller drives the actuator using a stochastic sequence and determines the mechanical property of the tissue using the measured response received from the detector. The probe can be coupled to the tissue surface. The device can include a reference surface configured to contact the tissue surface. The probe may include a set of interchangeable heads, the set including a head for lateral movement of the probe and a head for perpendicular movement of the probe. The perturbation can include extension of the tissue with the probe or sliding the probe across the tissue surface and may also include indentation of the tissue with the probe. In some embodiments, the actuator includes a Lorentz force linear actuator. The mechanical property may be determined using non-linear stochastic system identification. The mechanical property may be indicative of, for example, tissue compliance and tissue elasticity. The device can further include a handle for manual application of the probe to the surface of the tissue and may include an accelerometer detecting an orientation of the probe. The device can be used to test skin tissue of an animal, plant tissue, such as fruit and vegetables, or any other biological tissue.
    • 用于测量组织的机械特性的装置包括配置成相对于组织表面移动来干扰组织的探针,耦合到探针以移动探针的致动器,被配置成测量组织的响应的检测器 扰动和耦合到致动器和检测器的控制器。 控制器使用随机序列驱动致动器,并使用从检测器接收的测量响应来确定组织的机械特性。 探针可以耦合到组织表面。 该装置可以包括构造成接触组织表面的参考表面。 探针可以包括一组可互换的头部,该组件包括用于探针的横向运动的头部和用于探针的垂直运动的头部。 扰动可以包括用探针延伸组织或者将探针滑过组织表面,还可以包括用探针的组织​​的凹陷。 在一些实施例中,致动器包括洛伦兹力线性致动器。 可以使用非线性随机系统识别来确定机械特性。 机械性能可以指示例如组织依从性和组织弹性。 该装置还可以包括用于将探针手动施加到组织表面的手柄,并且可以包括检测探针取向的加速度计。 该装置可用于测试动物,植物组织如水果和蔬菜或任何其他生物组织的皮肤组织。