System and method for deriving angular isokinetic measurements using a linear dynamometer

    公开(公告)号:US20040082437A1

    公开(公告)日:2004-04-29

    申请号:US10278066

    申请日:2002-10-23

    Inventor: Zeevi Dvir

    CPC classification number: A61B5/6887 A61B5/224

    Abstract: A method for deriving isokinetic measurements of the moment applied by a body portion while the body portion performs a pivotal or flexing motion at a given angular velocity about an effective pivot axis. The method uses a linear dynamometer configured for performing isokinetic measurements over a predefined range of motion along a linear path. First, the linear dynamometer is deployed with its linear path substantially tangential to a circle of given radius about the effective pivot axis for measuring force applied by the body portion. The linear dynamometer is then used to measure a force profile applied by the body portion over a predefined range of motion at a predefined linear velocity. This force profile, the linear velocity and the radius are then used to derive data for the moment applied by the body portion and the corresponding angular velocity.

    Quantification of muscle tone
    92.
    发明授权
    Quantification of muscle tone 有权
    定量肌张力

    公开(公告)号:US06589190B2

    公开(公告)日:2003-07-08

    申请号:US09949411

    申请日:2001-09-06

    CPC classification number: A61B5/224 A61B5/0488 A61B5/4528 A61B5/6824

    Abstract: A method and device for the quantification of muscle tone, particularly the wrist, wherein non-sinusoidal and non ramp trajectories are used to drive the wrist. Equation 1 is utilized determine the stiffness, viscosity and inertial parameters. &tgr;s(t)=KH&thgr;(t)+BH&thgr;(t)+JT&thgr;(t)+&tgr;off  [Eq. 1] wherein where &tgr;s is the total torque, &tgr;off is the offset torque, KH and BH are the angular stiffness and viscosity of the combined flexor and extensor muscle groups that act on the joint, JT is the combined inertia of the oscillating appendage, &thgr; is the angular displacement of the system, and θ . ⁢   ⁢ and ⁢   ⁢ θ ¨ are the velocity and acceleration. In accordance with the method, the trajectory &thgr;(t) is controlled, the torque response &tgr;(t) is measured and the stiffness, viscosity, and inertial parameters are determined using Equation 1. The method and device are particularly suitable for use on patients with spacisity.

    Abstract translation: 一种用于定量肌肉紧张度,特别是手腕的方法和装置,其中使用非正弦和非斜坡轨迹来驱动腕部。 公式1用于确定刚度,粘度和惯性参数。其中taus是总扭矩,tauoff是偏移扭矩,KH和BH是作用于关节的组合的屈肌和伸肌组的角刚度和粘度, JT是摆动附件的组合惯性,θ是系统的角位移,是速度和加速度。 根据该方法,控制轨迹θ(t),测量转矩响应tau(t),并使用公式1确定刚度,粘度和惯性参数。该方法和装置特别适用于患者 具有空间。

    Microsensor for physiological pressure measurement
    93.
    发明申请
    Microsensor for physiological pressure measurement 审中-公开
    用于生理压力测量的微传感器

    公开(公告)号:US20020183597A1

    公开(公告)日:2002-12-05

    申请号:US10132894

    申请日:2002-04-25

    CPC classification number: A61B5/036 A61B5/0031 A61B5/01 A61B5/1107 A61B5/224

    Abstract: A body implantable sensor for sensing pressure in an environment within internal body tissue is described. In an implementation, the sensor includes a housing, an optical waveguide and a diaphragm with a reflective surface that faces a waveguide distal end and that reflects at least a portion of the signals exiting the waveguide distal end back into the waveguide. The diaphragm is movable relative to the waveguide end. The distance between the waveguide distal end and the diaphragm reflective surface is determined by pressure forces acting on a sensing surface of the diaphragm that is opposite the reflective surface. A cover surrounds the diaphragm and protects it from impingement, but leaves the diaphragm sensing surface exposed to pressure forces. In some implementations, an attachment mechanism stabilizes the sensor when implanted in the bodily tissue.

    Abstract translation: 描述了用于感测内部身体组织内的环境中的压力的​​身体植入式传感器。 在一个实施方案中,传感器包括壳体,光波导和具有面向波导远端的反射表面并且将至少一部分离开波导远端的信号反射回波导的膜片。 隔膜相对于波导端可移动。 波导远端和隔膜反射表面之间的距离由作用在与反射表面相对的隔膜的感测表面上的压力决定。 盖子围绕隔膜并保护其免受冲击,但使隔膜感测表面暴露于压力。 在一些实施方案中,当植入到身体组织中时,附接机构使传感器稳定。

    Non-invasive sensing of a physical parameter
    94.
    发明授权
    Non-invasive sensing of a physical parameter 有权
    物理参数的无创感知

    公开(公告)号:US06292680B1

    公开(公告)日:2001-09-18

    申请号:US09424160

    申请日:2000-02-16

    CPC classification number: A61B5/1126 A61B5/0265 A61B5/06 A61B5/1121 A61B5/224

    Abstract: There is disclosed a method and device for non-invasively sensing a physical parameter within the body of a patient by employing a magnetically-based sensing device and monitoring device. The magnetically-based sensing device has a first magnet and a second magnet which generate a combined magnet field. The first and second magnets are positioned such that a change in a physical parameter causes a change in the combined magnet field, which change is monitored by the monitoring device.

    Abstract translation: 公开了一种通过采用基于磁性的感测装置和监视装置非侵入性地感测患者身体内的物理参数的方法和装置。 基于磁性的感测装置具有产生组合的磁场的第一磁体和第二磁体。 第一和第二磁体被定位成使得物理参数的变化引起组合磁场的变化,该变化由监视装置监视。

    Physical capacity assessment system
    95.
    发明授权
    Physical capacity assessment system 有权
    身体能力评估制度

    公开(公告)号:US06186961B1

    公开(公告)日:2001-02-13

    申请号:US09186616

    申请日:1998-11-06

    Applicant: Reed Hanoun

    Inventor: Reed Hanoun

    Abstract: A testing apparatus of a physical capacity assessment system has a support base, a column extending upwardly from the base and a workstation to which load is applied by an individual being tested on the apparatus. The workstation is supported by and adjustable in a number of different planes relative to the column. Also provided are an indicator which shows positioning of the workstation and a measuring device which measures the load placed on the workstation.

    Abstract translation: 物理容量评估系统的测试装置具有支撑基座,从基座向上延伸的柱和由被测试的个体施加负载的工作站。 工作站由相对于列的多个不同平面支撑并可调整。 还提供了一个指示器,其示出了工作站的位置和测量放置在工作站上的负载的测量装置。

    Capacitive extensometer particularly suited for measuring in vivo bone
strain
    96.
    发明授权
    Capacitive extensometer particularly suited for measuring in vivo bone strain 失效
    电容引伸计特别适用于测量体内骨量

    公开(公告)号:US6059784A

    公开(公告)日:2000-05-09

    申请号:US179355

    申请日:1998-10-08

    Inventor: Gail P. Perusek

    CPC classification number: A61B5/4504 A61B5/224

    Abstract: The present invention provides for in vivo measurements of the principal strain magnitudes and directions, and maximum shear strain that occurs in a material, such as human bone, when it is loaded (or subjected to a load). In one embodiment the invention includes a capacitive delta extensometer arranged with six sensors in a three piece configuration, with each sensor of each pair spaced apart from each other by 120 degrees.

    Abstract translation: 本发明提供了主要应变幅度和方向的体内测量以及当其被加载(或承受负载)时在诸如人骨的材料中发生的最大剪切应变。 在一个实施例中,本发明包括一个电容式三角形引伸计,其布置有六个传感器,三个构件,每对传感器彼此隔开120度。

    Knee incision tensile gauge
    97.
    发明授权
    Knee incision tensile gauge 有权
    膝关节切口拉力计

    公开(公告)号:US5997545A

    公开(公告)日:1999-12-07

    申请号:US187904

    申请日:1998-11-06

    Abstract: A tool for measuring tissue tension during joint surgery has a tissue gripping end and a measurement assembly. The tool is preferably configured as a pair of tongs, with a mechanism that fixes the tongs to grip tissue with its tissue gripping end while the measurement assembly measures the tension in, or spreading force applied on the tissue gripped therein. In use, the joint is moved through a range of motion while the tool is attached, and the measurement assembly displays changes in tissue tension due to movement of the joint. A prototype tool implemented as a pair of tongs has tissue-gripping pincer points that are held closed by a ratchet bar assembly. The ratchet bar assembly is a telescoping cross bar which moves against the restraining force of an extension spring to register the spreading force exerted on the pincer arms by the tissue under tension. An annular stop member about each pincer point limits tissue penetration, and provides a defined surface against which the tissue acts allowing precise calibration of the device.

    Abstract translation: 用于在关节手术期间测量组织张力的工具具有组织夹持端和测量组件。 该工具优选地构造成一对夹钳,具有这样一种机构,该机构固定夹钳以在其组织夹紧端夹持组织,同时测量组件测量施加在夹持在其上的组织上的张力或展开力。 在使用中,在连接工具的同时,关节移动一定范围的运动,并且测量组件由于关节的移动而显示出组织张力的变化。 实现为一对夹钳的原型工具具有由棘轮杆组件保持关闭的组织夹紧夹点。 棘轮杆组件是伸缩横杆,其抵抗拉伸弹簧的约束力移动,以对准由张力下的组织施加在夹持臂上的铺展力。 围绕每个钳子点的环形止动构件限制组织穿透,并且提供限定的表面,组织起作用,允许装置的精确校准。

    Orofacial myographic measurement method
    98.
    发明授权
    Orofacial myographic measurement method 失效
    口面肌印测量方法

    公开(公告)号:US5609161A

    公开(公告)日:1997-03-11

    申请号:US464357

    申请日:1995-06-05

    CPC classification number: A61B5/228 A61B5/224

    Abstract: A myographic measurement method for direct strength measurement of the orofacial muscles, in particular, the lip and tongue muscles. A pressure-sensitive probe is placed in engagement with the orofacial muscle being tested. The probe provides a pressure response representative of the muscle strength under test. The probe is coupled to a transducer that converts the probe's pressure response in real time to an electrical signal representative of the force exerted on the probe by the muscle under test. The probe provides a representative pressure reading continuously over a test run of prescribed duration. The electrical signal generated in the test run is sampled and analyzed in real-time to determine a characteristic maximum pressure and hence characteristic maximum muscle strength achieved over the test run. The maximum muscle strength is provided in a form that may be incorporated directly into computerized patient records. The pressure-sensitive probe is provided by a balloon probe that is pneumatically coupled to a transducer. A strength measurement is made by holding the balloon probe against the muscle to be tested and having the patient press against the balloon probe with that muscle. To assist in holding the balloon probe in position a support fixture is provided that includes an anchor member that the patient retains in the mouth, typically gripped by the teeth, and a retaining member that is fixed to the anchor member and is shaped to retain the balloon probe in position against the lip muscle under test. Two illustrative shapes of support fixtures are illustrated for making measurements of the front upper and lower lip muscles and of lateral lip muscle thrust.

    Abstract translation: 用于直肌强度测量的肌肉,特别是嘴唇和舌头肌肉的肌肉测量方法。 将压敏探头放置成与所测试的口面肌接合。 探针提供代表被测肌肉强度的压力响应。 探针耦合到换能器,其将探针的实时压力响应转换成代表由被测肌肉施加在探针上的力的电信号。 探头在规定持续时间的测试运行中连续提供代表性的压力读数。 在测试运行中产生的电信号被实时采样和分析,以确定特征最大压力,从而在测试运行中获得特征最大肌肉力量。 最大肌肉强度以可以直接并入计算机病人记录的形式提供。 压敏探针由气球探针提供,气球探针气动耦合到换能器。 通过将气球探针保持在待测试的肌肉上并使患者用该肌肉按压气球探针来进行强度测量。 为了帮助将气球探针保持在适当位置,提供了支撑固定装置,其包括患者保持在嘴中的锚定构件,该锚定构件通常被牙齿夹持;以及保持构件,该保持构件固定在锚定构件上并成形为保持 气球探针位于与被测唇口的位置。 示出了支撑固定装置的两个说明性形状,用于测量前上唇和下唇肌肉和外侧唇肌推力。

    Orofacial myographic measurement apparatus
    99.
    发明授权
    Orofacial myographic measurement apparatus 失效
    面部肌肉测量仪器

    公开(公告)号:US5452727A

    公开(公告)日:1995-09-26

    申请号:US184294

    申请日:1994-01-21

    CPC classification number: A61B5/228 A61B5/224

    Abstract: A myographic measurement apparatus for direct strength measurement of the orofacial muscles, in particular, the lip and tongue muscles. The apparatus includes a pressure-sensitive probe that is adapted to be placed in engagement with the orofacial muscle being tested. The probe provides a pressure response representative of the muscle strength under test. The probe is coupled to a transducer that converts the probe's pressure response in real time to an electrical signal representative of the force exerted on the probe by the muscle under test. The probe provides a representative pressure reading continuously over a test run of prescribed duration. The electrical signal generated in the test run is sampled and analyzed in real-time to determine a characteristic maximum pressure and hence characteristic maximum muscle strength achieved over the test run. The maximum muscle strength is provided in a form that may be incorporated directly into computerized patient records. The pressure-sensitive probe is provided by a balloon probe that is pneumatically coupled to a transducer. A strength measurement is made by holding the balloon probe against the muscle to be tested and having the patient press against the balloon probe with that muscle. To assist in holding the balloon probe in position a support fixture is provided that includes an anchor member that the patient retains in the mouth, typically gripped by the teeth, and a retaining member that is fixed to the anchor member and is shaped to retain the balloon probe in position against the lip muscle under test. Two illustrative shapes of support fixtures are illustrated for making measurements of the front upper and lower lip muscles and of lateral lip muscle thrust.

    Abstract translation: 一种用于直肌强度测量的肌肉测量装置,特别是口唇肌肉。 该装置包括适于被放置成与正在测试的口面肌接合的压敏探针。 探针提供代表被测肌肉强度的压力响应。 探针耦合到换能器,其将探针的实时压力响应转换成代表被测肌肉施加在探针上的力的电信号。 探头在规定持续时间的测试运行中连续提供代表性的压力读数。 在测试运行中产生的电信号被实时采样和分析,以确定特征最大压力,从而在测试运行中获得特征最大肌肉力量。 最大肌肉力量以可以直接并入计算机病人记录的形式提供。 压敏探针由气球探针提供,气球探针气动耦合到换能器。 通过将气球探针保持在待测试的肌肉上并使患者用该肌肉按压气球探针来进行强度测量。 为了帮助将气球探针保持在适当位置,提供了支撑固定装置,其包括患者保持在嘴中的锚定构件,该锚定构件通常被牙齿夹持;以及保持构件,该保持构件固定在锚定构件上并成形为保持 气球探针位于与被测唇口的位置。 示出了支撑固定装置的两个说明性形状,用于测量前上唇和下唇肌肉和外侧唇肌推力。

    Leg extension apparatus with pivotal foot section for measuring
instantaneous power generated by a leg extending force
    100.
    发明授权
    Leg extension apparatus with pivotal foot section for measuring instantaneous power generated by a leg extending force 失效
    具有枢转脚部的腿部延伸装置,用于测量由腿部延伸力产生的瞬时动力

    公开(公告)号:US5277674A

    公开(公告)日:1994-01-11

    申请号:US821772

    申请日:1992-01-16

    Abstract: An apparatus for measuring physical strength by dynamically measuring the instantaneous power of a nonrepetitive muscular force as, for example, the force exerted by a leg extension, on the basis of a power theory and, consequently, the instantaneous power generated by a dynamic, nonrepetitive multi-articular movement such as a vertical jump. The power produced by a leg extension is calculated from the maximum speed V.sub.max of the foot plate and its output time T.sub.max. An apparatus for such measurement includes a base frame; a guide section that extends in the same direction as the base frame; a foot section that slides along the guide section so that its sliding angle is variable; a measuring unit that measures sliding conditions of the foot section; a display unit that displays, visually or aurally, various data on the leg extension of the subject; and a processor means for calculating the power generated by the leg extending force.

    Abstract translation: 一种用于通过动态地测量非重复性肌力的瞬时功率来测量身体强度的装置,例如基于功率理论施加的腿伸展力,并且因此,由动态,非重要性产生的瞬时功率 多关节运动如垂直跳跃。 由脚踏板的最大速度Vmax和其输出时间Tmax计算由腿部延伸产生的功率。 这种测量装置包括一个基架; 引导部,其沿与所述基架相同的方向延伸; 脚部,其沿着引导部分滑动,使得其滑动角度是可变的; 测量所述脚部的滑动条件的测量单元; 显示单元,以目视或听觉方式显示对象的腿部延伸上的各种数据; 以及用于计算由腿部延伸力产生的动力的处理器装置。

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