SYSTEMS AND METHODS FOR MEASURING BLOOD PRESSURE

    公开(公告)号:US20240277240A1

    公开(公告)日:2024-08-22

    申请号:US18592189

    申请日:2024-02-29

    摘要: A blood pressure measurement system is provided that includes an inflatable cuff, a valve assembly and chamber assembly. The chamber assembly can house a gas canister for providing gas to the inflatable cuff. The valve assembly can include a valve having a high pressure cavity, a low pressure cavity, and a channel providing a gas pathway between the high pressure cavity and the low pressure cavity. The valve assembly can further include a channel cover and spring in the high pressure cavity. The spring can exert a force on the channel cover to create a seal between the high pressure cavity and the channel. The valve assembly can further include a rod extending through the channel and exerting a force on the channel cover to create a gas pathway between the high pressure cavity and the channel.

    PULSER WITH DOUBLE-BEARING POSITION ENCODER FOR NON-INVASIVE PHYSIOLOGICAL MONITORING

    公开(公告)号:US20210381857A1

    公开(公告)日:2021-12-09

    申请号:US17324474

    申请日:2021-05-19

    发明人: Cristiano Dalvi

    IPC分类号: G01D5/347

    摘要: A double-bearing position encoder has an axle stabilized within a housing via two bearings disposed on opposite walls of the housing. The axle is in communications with a rotating cam. The cam actuates a pulser so as to generate an active pulse at a tissue site for analysis by an optical sensor. The axle rotates a slotted encoder wheel or a reflective encoder cylinder disposed within the housing so as to accurately determine the axle position and, hence, the active pulse frequency and phase.

    MODULATED PHYSIOLOGICAL SENSOR
    6.
    发明申请

    公开(公告)号:US20210378517A1

    公开(公告)日:2021-12-09

    申请号:US17208501

    申请日:2021-03-22

    IPC分类号: A61B5/00

    摘要: A modulated physiological sensor is a noninvasive device responsive to a physiological reaction of a living being to an internal or external perturbation that propagates to a skin surface area. The modulated physiological sensor has a detector configured to generate a signal responsive to the physiological reaction. A modulator varies the coupling of the detector to the skin so as to at least intermittently maximize the detector signal. A monitor controls the modulator and receives an effectively amplified detector signal, which is processed to calculate a physiological parameter indicative of the physiological reaction.

    PROXIMITY SENSOR IN PULSE OXIMETER
    10.
    发明申请

    公开(公告)号:US20190223804A1

    公开(公告)日:2019-07-25

    申请号:US16261394

    申请日:2019-01-29

    IPC分类号: A61B5/00 A61B5/1455

    摘要: Systems and methods are disclosed for proximity sensing in physiological sensors, and more specifically to using one or more proximity sensors located on or within a physiological sensor to determine the positioning of the physiological sensor on a patient measurement site. Accurate placement of a physiological sensor on the patient measurement site is a key factor in obtaining reliable measurement of physiological parameters of the patient. Proper alignment between a measurement site and a sensor optical assembly provides more accurate physiological measurement data. This alignment can be determined based on data from a proximity sensor or sensors placed on or within the physiological sensor.