CN110140031A - 具有调节器的电子流量计 - Google Patents

具有调节器的电子流量计 Download PDF

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CN110140031A
CN110140031A CN201780077999.1A CN201780077999A CN110140031A CN 110140031 A CN110140031 A CN 110140031A CN 201780077999 A CN201780077999 A CN 201780077999A CN 110140031 A CN110140031 A CN 110140031A
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flow
electronic
microprocessor
valve
sensor
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CN110140031B (zh
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迈克尔·D·基尔克兰
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Medetac Medical Co Ltd
Medtec Medical Inc
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    • G—PHYSICS
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    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
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    • G—PHYSICS
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    • G01F15/063—Indicating or recording devices for remote indication using electrical means
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    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14—Casings, e.g. of special material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H9/00—Pneumatic or hydraulic massage
    • A61H9/005—Pneumatic massage
    • A61H9/0078—Pneumatic massage with intermittent or alternately inflated bladders or cuffs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
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    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
    • A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
    • A61M2205/3592—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using telemetric means, e.g. radio or optical transmission
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    • A61M2205/00—General characteristics of the apparatus
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    • A61M2205/502—User interfaces, e.g. screens or keyboards
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    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T137/8326—Fluid pressure responsive indicator, recorder or alarm

Abstract

电子流量计(100，200)包括限定内部的主体(104)、与内部连通的入口(105)、与内部(105)连通的出口(106)以及阀(110，210)，阀(110，210)可在打开位置和关闭位置之间选择性地调节，以便在出口(106)与内部之间进行连通。流量传感器(200)与阀(110，210)相关联并且感测通过阀(110，210)的流量，并且数字指示器(103)显示由流量传感器(200)感测的流量。

Description

具有调节器的电子流量计
技术领域
本公开涉及测量流体流量的流量计，更具体地，本公开涉及包括用于调节通过流量计的流体的流量设置的调节器的流量计。
背景技术
测量诸如氧气、氮气或一氧化氮的气态流体的流量计通常用于以用于治疗目的的规定剂量分配流体。例如，需要氧气的患者获得一定浓度的氧气、一定流量或体积的氧气以及输送氧气的一定时长的处方。氧气从例如氧浓缩装置的氧气源通过流量计输送到患者。当从氧气源输送氧气时，通过流量计测量氧气并通过调节器调节氧气以分配用于输送给患者的适当的氧气流量。
已知的流量计通常与氧气源流体连通，并具有用于给使用者指示流量的球形指示器。这种流量计可包括具有入口和出口的仪表主体。入口的下游和出口的上游是容纳球形指示器的“索普(Thorpe)”管。氧气在入口处流入仪表主体，通过索普管，并从出口流出。索普管中的氧气使球形指示器的球体对抗重力向上升高。索普管内升高的球体与相邻的流量管刻度的视觉比较表明通过流量计的氧气的流量。调节器可由使用者调节，并通过旋钮操作以改变通过流量计中的流体连通通道的流量。调节器可以是针阀，包括延伸到流体连通通道中邻近出口的针部分。通常，阀轴是带螺纹的，并且接收带有内螺纹的凸台。通过旋转相关联的旋钮，针轴向移动到被插入流体连通通道中或从流体连通通道中拉出，这样操作来打开或关闭出口。当使用者调节旋钮时，通过流体连通通道的流量被改变。通过目测检查与流量管刻度对齐的悬浮球体来获得对应的流量信息。
上面描述的流量计存在多个缺点。举一个例子，在使用者比较球体与刻度的对齐时可能存在困难。此外，当流量落在规定范围之外时，使用者有责任目测检查球体在刻度上的位置，以确认球体超出范围，并调节调节器的旋钮直到条件回到规定的范围内。
发明内容
根据本公开的一个方面，电子流量计包括：限定内部的主体；与内部连通的入口；与内部连通的出口；以及阀，其能在打开位置和关闭位置之间选择性地调节，以便在出口与内部之间进行连通。流量传感器与阀相关联并感测通过阀的流量，并且数字指示器显示由流量传感器感测到的流量。
根据本公开的另一个方面，流量计包括：限定内部的主体、通过主体彼此流体连通的入口和出口、保持流体在入口与出口之间的预定流量的电子调节器以及与电子调节器通信的触摸屏，该触摸屏用于进行预定流量的输入和调节中的至少一种。
根据本公开的另一个方面，流量计包括：限定内部的主体；与内部连通的入口；与内部连通的出口；以及阀，其能在打开位置和关闭位置之间选择性地调节，以便在出口与内部之间进行连通。电子调节器保持流体在入口与出口之间的预定流量，并且触摸屏与电子调节器通信，以进行预定流量的输入和调节中的至少一种。
从附图和下面的优选实施方式的详细描述，本发明的另外的目的和优点将变得清楚。
通过参照以下说明书、权利要求和附图，本领域技术人员将进一步理解和领会本发明的上述及其他的特征、优点和目的。
附图说明
图1是根据本公开的一方面的具有数字显示器的流量计；
图2是根据本公开的另一方面的具有数字输入部的流量计；
图3是与根据图1和图2的流量计中的任一个流量计相关联的传感器和微处理器的示意图；
图4是流量计的部件之间的通信以及它们与微处理器的连接的框图。
具体实施方式
现在参照图1，流量计100的第一实施方式被构造为与氧气源2流体连通(参见图1)，并且如下所述，具有为使用者提供通过流量计的氧气流量的数字指示器103，数字指示器103优选为LED(发光二极管)显示器的形式。流量计100包括仪表主体104和从仪表主体延伸的管107。仪表主体104具有入口105和出口106。氧气在入口105处流入仪表主体104，通过第一流体连通通道112A，通过管107，通过第二流体连通通道112B，并从出口106流出。
在图1的第一例子中，调节器110是机械阀，如现有技术中已知的那样，该机械阀通过旋钮111来操作以改变通过流量计100中的流体连通通道112B的流量。当使用者控制氧气的流量时，使用者调节旋钮111，这样限制或打开流体连通通道112B，从而改变通过流体连通通道的流量。
参照图1、图3和图4，电子流量传感器F(例如，可从比例空间公司(Proportion-air)或科际精密股份有限公司(Koge Micro Tch Co.)商购获得的那些)位于管107中并感测通过该管的氧气的流量。电子流量传感器F将流量值发送到微处理器M，微处理器M在LED显示器103上显示该流量值。利用电子流量传感器F提供的信息实时跟踪流量的变化，并且由LED显示器103的使用者通过目测检查来获得流量值。
优选地，LED显示器103包括列的形式的多个LED灯102，LED灯102与用于测量流体的标记相关联，例如每分钟的升数。在优选的实施方式中，标记的范围在0到30升/分钟之间。在一个例子中，当流量为15升/分钟时，与0至15升/分钟的值相关联的LED被点亮。替代地，仅点亮与15升/分钟的数值相关联的LED。此外，可以在例如LCD(液晶显示器)屏幕114上显示数值“15”的数字显示。
在图2的第二例子中，流量计200与具有数字指示器103(例如，LED显示器)的流量计100的第一例子基本相同，只是流量计200包括作为电子阀或螺线管的调节器210，例如，适用于氧气环境的可从科际精密股份有限公司(Koge Micro Tch Co.)或万机仪器公司(MKS Instruments)商购获得的那些。调节器210可以由机械输入装置操作，例如旋钮(其可以类似于图1中所示的旋钮111)，或者可以由触摸屏212或其他输入装置(例如，摇杆开关、按钮等)操作。还可以设计出，触摸屏212可以是背光的，并且触摸屏可以被编程为在预定的时间内关闭，例如在最后一次使用者输入的五分钟之后。
现在参照图2至图4，对于电子调节器210，可以通过调节传感器R监测调节器的设置，调节传感器R监测流量计200的设置并将该设置发送给微处理器M。这样，电子调节器210可以基于来自调节传感器R的反馈而自动操作。流量计200的设置被显示在触摸屏212和/或LED显示器103和/或LCD屏幕114上。可以设计出仅需要一个显示器来指示与流量计200相关联的所有设置和警报。调节传感器R可以是红外发射器和光电探测器，该红外发射器和光电探测器在电子阀的部件打开或关闭流体连通通道112B时根据电子阀的部件之间的距离产生电信号。可以设计出使用其他类型的调节传感器R。
流量计100、200的微处理器M具有记忆存储器O以存储处方数据和/或来自流量传感器F的读数和/或来自调节传感器R的读数。记忆存储器O、时钟C和比较器I允许微处理器M被编程为在规定的流量范围内将流量计100、200运行达规定的持续时间。在一个实施方式中，微处理器M可以被编程为随时间在不同的流量水平下自动地操作，并且可以包括预设流量的范围或由护理人员指示的范围。当流量水平超过或降低到低于某一范围时，微处理器M可以自动关闭流量计100、200，或者可以将水平保持在范围的外部限度值。
微处理器M还允许存储历史数据以及流量传感器F与调节传感器R之间的校准。虽然微处理器M优选包含在流量计100、200内，但是可以设计出远程设置微处理器。
流量计100、200优选设置有警报器A，其对由流量传感器F和/或调节传感器R产生的信号作出响应。警报器A可以是声音警报器和/或视觉警报器，例如流量计上的LED。警报器A可能启动的条件是当流量水平超出规定范围时，或者当没有流量时。例如，当氧气水平不在微处理器M的记忆存储器O中存储的规定范围内时，或者使用时钟C时不在比较器I处比较的规定时长内时，启动声音警报器和/或视觉警报器。当条件得到修正并且水平恢复到规定参数范围内时，警报器A将自动停止运行。可以将警报器A设计为位于流量计100、200中一个或两个的上游或下游，以指示低容量和/或低压状态。
无线通信系统W连接流量计100、200以向远程位置实时地播报流速，特别是任何警报条件。这种远程位置的例子包括医院环境中的护士站以及家庭护理提供者。无线通信系统W可以与现有的医院警报系统集成，并与健康记录系统集成。无线通信系统W还可以用于与医疗服务提供者的个人设备例如手机、寻呼机、平板电脑和其他个人计算机通信。无线通信系统W可以是Wi-Fi或蓝牙系统，但是也可以考虑其他系统。
流量计110、210可以与深静脉血栓形成服装一起用于“DVT”模式，避免需要用于DVT加压治疗的单独的泵。流量计110、210监测DVT服装的正压力并在约40mm/HG至约150mm/HG的范围内调节DVT服装的正压力，并且优选由使用者在触摸屏输入装置212处进行控制。预期作为DVT模式的一部分，DVT服装的间歇性充气和放气由流量计110、210控制。例如，流量计110、210可以在一段时间内(例如1分钟)控制DVT服装的充气，然后可以在随后的一段时间内(例如1分钟)保持或控制DVT服装的放气。预期流量计110、210可以将一个或多个患者肢体上的一个或多个DVT服装控制不同的时长。
流量计110、210可以考虑由主电源、电池电源、太阳能和/或直列式涡轮机以及其他电源供电。
对于流量计100、200的两个实施方式，考虑流量计可测量的流量值的上限阈值优选为约30升/分钟，但也可考虑其他值。
对于流量计100、200，优选所有外表面都用抗微生物剂处理，例如MicrobeCareTM、季铵抗微生物剂、诸如银和铜等重金属、诸如氯己定(CHG)、双胍类和三氯生的消毒剂。
由于在本发明的精神和范围内的修改可以由本领域技术人员容易地实现，因此应该理解，本发明不限于通过上文中的例子描述的特定实施方式。在本发明的前述描述中，除了上下文因明确的语言或必要的含义而另有要求之外，词语“包括”或诸如“包含”或“含有”的变型以包容的意义使用，即，表明存在所述特征，但不排除在本发明的各种实施方式中存在或添加另外的特征。
附图中的附图标记

Claims (15)

1.一种电子流量计，其包括：
限定内部的主体；
与所述内部连通的入口；
与所述内部连通的出口；
阀，其能在打开位置和关闭位置之间选择性地调节，以便在所述出口与所述内部之间进行连通；
流量传感器，其与所述阀相关联并感测通过所述阀的流量；以及
数字指示器，其显示由所述流量传感器感测到的流量。
2.根据权利要求1所述的电子流量计，其中，所述数字指示器包括多个LED，所述多个LED与所述流量传感器感测到的流量的增加成比例地顺序地点亮。
3.根据权利要求1所述的电子流量计，其中，所述数字指示器包括LCD屏幕，所述LCD屏幕显示由所述流量传感器感测到的流量的数字指示。
4.根据前述权利要求中的任一项所述的电子流量计，其还包括与所述流量传感器和显示器电子通信的微处理器，所述微处理器从所述流量传感器接收流量信号，并将对应的控制信号输出给所述数字指示器。
5.根据权利要求4所述的电子流量计，其中：
所述阀是机电阀；并且
所述微处理器与所述阀进行电子通信，以控制所述阀在所述打开位置与所述关闭位置之间的调节。
6.根据权利要求5所述的电子流量计，其还包括调节传感器，所述调节传感器确定所述阀在所述打开位置与所述关闭位置之间的位置，所述微处理器与所述调节传感器进行电子通信以监测其位置。
7.根据权利要求5所述的电子流量计，其中，所述微处理器还与所述流量传感器通信，并实施反馈控制方案以控制所述阀的调节，从而实现由所述流量传感器的输出所确定的预定流量。
8.根据权利要求7所述的电子流量计，其还包括与所述微处理器通信的输入装置，所述输入装置用于使用者输入所述预定流量。
9.根据权利要求4至8中任一项所述的电子流量计，其还包括与所述微处理器通信的输出装置，当所述流量在预定范围之外时，所述微处理器控制所述输出装置输出警报。
10.根据权利要求1所述的电子流量计，其中，所述阀包括在电子调节器中，所述电子调节器保持流体在所述入口与所述出口之间的预定流量，所述电子流量计还包括：
与所述电子调节器通信的触摸屏，所述触摸屏用于进行所述预定流量的输入和调节中的一种。
11.根据权利要求10所述的电子流量计，其还包括调节传感器，所述调节传感器感测所述电子调节器在完全打开位置与完全关闭位置之间的位置范围内的位置。
12.根据权利要求11所述的电子流量计，其还包括与所述调节传感器和所述电子调节器进行电子通信的微处理器，所述微处理器从所述调节传感器接收指示所述电子调节器的位置的位置信号。
13.根据权利要求12所述的电子流量计，其中，所述微处理器使用所述位置信号实施反馈方案以控制所述电子调节器的位置，从而实现所述预定流量。
14.根据权利要求11至13中任一项所述的电子流量计，其中：
所述调节传感器还感测通过所述电子调节器的流体内的氧气浓度和该流体的流量中的至少一种，所述流量计还包括：
与所述微处理器通信的输出装置，当所述氧气浓度和所述流量中的一个在预定范围之外时，所述微处理器控制所述输出装置输出警报。
15.根据前述权利要求中任一项所述的电子流量计，其中，将所述流量计在其整个外部上用抗微生物剂处理。
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