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    CARBON DIOXIDE-BASED BI-LEVEL CPAP CONTROL
    2.
    发明申请
    CARBON DIOXIDE-BASED BI-LEVEL CPAP CONTROL 审中-公开
    基于二氧化碳的双层CPAP控制

    公开(公告)号：WO0226287A3

    公开(公告)日：2002-08-22

    申请号：PCT/US0130768

    申请日：2001-09-27

    Applicant: INVACARE CORP

    Inventor： RICHEY JOSEPH B II

    IPC: A61M16/00 ,  A61M16/16 ,  A62B7/00 ,  F16K1/08

    CPC classification number: A61M16/161 ,  A61M16/0069 ,  A61M16/024 ,  A61M16/085 ,  A61M2205/3368 ,  A61M2230/432

    Abstract: A system and method of providing bi-level CPAP therapy is provided that incorporates an infrared carbon-dioxide sensor (124) to determine whether a patient is inhaling or exhaling. Patient exhalation causes the infrared light to be absorbed, while patient inhalation reduces the presence of carbon-dioxide causes little or no absorption of carbon-dioxide. The level of carbon-dioxide in an associated patient breathing interface is monitored for thresholds that trigger higher CPAP pressure upon inhalation and lower CPAP pressure upon exhalation.

    Abstract translation: 提供了一种提供双水平CPAP治疗的系统和方法，其包括红外二氧化碳传感器（124）以确定患者是否正在吸入或呼出。 患者呼气导致红外线被吸收，而患者吸入减少二氧化碳的存在导致二氧化碳很少或不吸收。 监测相关患者呼吸界面中二氧化碳的水平，以便在吸入时触发更高CPAP压力的阈值，并在呼气时降低CPAP压力。

    POWER WHEELCHAIR HAVING A BRUSHLESS, GEARLESS MOTOR AND UTILIZING A TRAPEZOIDAL WAVE FUNCTION DRIVE CONTROLLER
    3.
    发明申请
    POWER WHEELCHAIR HAVING A BRUSHLESS, GEARLESS MOTOR AND UTILIZING A TRAPEZOIDAL WAVE FUNCTION DRIVE CONTROLLER 审中-公开
    具有无刷，无齿轮马达和利用梯形波功能驱动控制器的动力轮椅

    公开(公告)号：WO0025718A3

    公开(公告)日：2000-10-05

    申请号：PCT/US9919426

    申请日：1999-08-30

    Applicant: INVACARE CORP

    Inventor： RICHEY JOSEPH B II ,  WAKEFIELD THEODORE D II ,  MENTESSI ROLAND A ,  BENTON TERRY ,  COCKRAM GEORGE R

    IPC: A61G5/04 ,  B60L11/18

    CPC classification number: A61G5/043 ,  A61G5/045 ,  A61G5/06 ,  A61G5/101 ,  A61G5/1032 ,  A61G5/1089 ,  B60L11/18 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7005

    Abstract: A power wheelchair is provided having opposing drive wheels wherein the axles of the drive wheels are coupled directly to the rotor of drive motors. These motors are brushless motors, wherein each has a brake located within the motor housing which acts directly on the rotor. The brake is a fail-safe brake since it is in a non-engaged position when activated. In another embodiment of the invention, permanent magnet rings of the motor have been magnetized so as to generate a trapezoidal wave function corresponding to the relative displacement of the rotor to the stator. This wave function is used by a microprocessor to independently control the two opposing drive wheels which may be rear drive wheels, mid-drive wheels or front drive wheels.

    Abstract translation: 提供具有相对的驱动轮的动力轮椅，其中驱动轮的轮轴直接联接到驱动马达的转子。 这些电动机是无刷电动机，其中每个电动机具有位于电动机壳体内的制动器，该制动器直接作用在转子上。 制动器是一种防故​​障制动器，因为它在启动时处于非接合位置。 在本发明的另一个实施例中，电动机的永磁环已被磁化，以产生对应于转子相对于定子的相对位移的梯形波函数。 该波浪功能由微处理器用来独立地控制两个相对的驱动轮，这两个驱动轮可以是后驱动轮，中间驱动轮或前驱动轮。

    APPARATUS AND METHOD FOR FORMING OXYGEN-ENRICHED GAS AND COMPRESSION THEREOF FOR HIGH-PRESSURE MOBILE STORAGE UTILIZATION
    4.
    发明申请
    APPARATUS AND METHOD FOR FORMING OXYGEN-ENRICHED GAS AND COMPRESSION THEREOF FOR HIGH-PRESSURE MOBILE STORAGE UTILIZATION 审中-公开
    用于形成富氧气体的装置和方法以及用于高压移动存储利用的压缩

    公开(公告)号：WO9916529A3

    公开(公告)日：1999-06-24

    申请号：PCT/US9819282

    申请日：1998-09-16

    Applicant: INVACARE CORP

    Inventor： RICHEY JOSEPH B II ,  GOERTZEN GEROLD G

    IPC: A61M16/10 ,  A62B7/14 ,  B01D53/04 ,  F04B25/00 ,  F17C5/06

    CPC classification number: A62B7/14 ,  A61M16/10 ,  A61M16/101 ,  B01D53/04 ,  B01D53/0407 ,  B01D53/0446 ,  B01D2253/10 ,  B01D2256/12 ,  B01D2259/4533 ,  B01D2259/4541 ,  F04B25/00 ,  F04B25/02

    Abstract: An oxygen concentrator is utilized in combination with a compressor to provide a highly enriched and compressed oxygen gas in a mobile container such as a gas cylinder. The combination and method of production provides for the facile preparation of an enriched source of oxygen for use by an ambulatory or wheelchair-confined patient. The oxygen concentrator utilizes two or more molecular sieves to provide a breathable gas of from approximately 80 to about 98 percent oxygen from atmospheric air. The oxygen-enriched gas is stored in a concentrator product tank and can be prioritized so as to supply a patient with a proper amount and concentration of oxygen and secondarily to supply any surplus or excess enriched oxygen to a compressor. The compressor utilizes multiple stages to produce the highly compressed oxygen-enriched gas and utilizes a two-part piston at low rpm to enhance low wear and low noise. The multiple pistons of the compressor can either all rotate at one RPM or in an alternative embodiment, at least a first piston can rotate at a higher RPM than any remaining pistons. Desirably, at least the initial piston of the alternative embodiment is driven by one drive shaft source with one or more other remaining pistons being driven by a second drive shaft.

    Abstract translation: 氧气浓缩器与压缩机组合使用，以在诸如气瓶的移动容器中提供高度富集和压缩的氧气。 生产的组合和方法提供了便利地制备富含氧气的来源，以供移动或轮椅限制的患者使用。 氧浓缩器利用两种或更多种分子筛提供来自大气的约80至约98％氧气的透气气体。 富氧气体储存在浓缩器产品罐中，并且可以优先排列，以向患者提供适量的氧气和浓度的二氧化碳，并将二氧化碳供应给压缩机。 压缩机采用多级生产高度压缩的富氧气体，并以低转速使用两部分活塞，以增强低磨损和低噪音。 压缩机的多个活塞都可以以一RPM旋转，或者在替代实施例中，至少第一活塞可以以比任何剩余活塞更高的RPM旋转。 期望地，替代实施例的至少初始活塞由一个驱动轴源驱动，其中一个或多个其它剩余活塞由第二驱动轴驱动。

    MOTORIZED WHEELCHAIR
    5.
    发明专利
    MOTORIZED WHEELCHAIR 未知

    公开(公告)号：CA2677751A1

    公开(公告)日：2008-11-27

    申请号：CA2677751

    申请日：2008-01-31

    Applicant: INVACARE CORP

    Inventor： RICHEY JOSEPH B II ,  STROTHMANN THOMAS

    IPC: A61G5/04 ,  B60L11/18 ,  B60L15/10 ,  B60L15/20 ,  B60L50/11

    Abstract: A motorized wheelchair includes left and right drive wheels, left and right motors, rate-of-turn sensor, first and second speed sensors, and controller arranged to combine signals from the sensors in a manner that detects drift. Alternatively, the motorized wheelchair includes left and right drive wheels, left and right motors, first and second rate-of- turn sensors, and controller arranged to combine signals from the sensors in a, manner that compensates for voltage offset errors. In another arrangement, the motorized wheelchair includes left and right drive wheels, left and right motors, first and second rate-of-tum sensors, input device, and controller arranged to combine signals from the sensors and input device in a manner that controls the motors using an integrated tum rate error. Several methods for controlling each wheelchair configuration are also provided. These methods process signals associated with desired, expected, or actual turn rate to determine if the wheelchair is off course.

    MOTORIZED WHEELCHAIRS
    8.
    发明专利
    MOTORIZED WHEELCHAIRS 未知

    公开(公告)号：CA2396987A1

    公开(公告)日：2002-08-29

    申请号：CA2396987

    申请日：2002-01-30

    Applicant: INVACARE CORP

    Inventor： RICHEY JOSEPH B II ,  WAKEFIELD THEODORE D II

    IPC: A61G5/04 ,  B60L15/20

    Abstract: A motorized wheelchair is advantageously provided with a rate-of-turn feedba ck sensor and with forward/reverse motion, lateral motion, and vertical motion acceleration feedback sensors that are integrated into a closed-loop wheelchair servo control system to differentially control the rotational spe ed of wheelchair opposed motor-driven wheels and thereby obtain improved wheelchair motion stability through reduction/elimination of likely wheelcha ir spin-out and wheelchair tipping during wheelchair operation.

    MOTORIZED WHEELCHAIRS
    9.
    发明专利
    MOTORIZED WHEELCHAIRS 未知

    公开(公告)号：CA2377551A1

    公开(公告)日：2001-02-08

    申请号：CA2377551

    申请日：2000-07-06

    Applicant: INVACARE CORP

    Inventor： WAKEFIELD THEODORE D II ,  RICHEY JOSEPH B II

    IPC: A61G5/04 ,  B60L15/20

    Abstract: A motorized wheelchair is advantageously provided with a rate-of-turn feedba ck sensor and with forward/reverse motion, lateral motion, and vertical motion acceleration feedback sensors that are integrated into a closed-loop wheelchair servo control system to differentially control the rotational spe ed of wheelchair opposed motor-driven wheels and thereby obtain improved wheelchair motion stability through reduction/elimination of likely wheelcha ir spin-out and wheelchair tipping during wheelchair operation.

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