CN102266623B - Method and apparatus for controlling the supply amount of the anesthesia machine and anesthesia machine comprising the apparatus - Google Patents

Method and apparatus for controlling the supply amount of the anesthesia machine and anesthesia machine comprising the apparatus Download PDF

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CN102266623B
CN102266623B CN 201010620590 CN201010620590A CN102266623B CN 102266623 B CN102266623 B CN 102266623B CN 201010620590 CN201010620590 CN 201010620590 CN 201010620590 A CN201010620590 A CN 201010620590A CN 102266623 B CN102266623 B CN 102266623B
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tidal volume
intake valve
machine
flow meter
flow rate
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CN 201010620590
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CN102266623A (en
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丛玉孟
王威
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北京谊安医疗系统股份有限公司
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Abstract

本发明涉及一种控制麻醉机供气量的方法,包括下面的步骤:记录麻醉机的目标潮气量;判断流量计的流速是否为零;如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度。 The present invention relates to a method of controlling the amount of gas anesthetic machine, comprising the steps of: recording the target tidal volume anesthesia machine; flowmeter determines flow velocity is zero; if the flow meter is zero, according to the target tidal volume of the anesthetic machine to determine the degree of the intake valve is closed, if the flow meter is greater than zero, it is determined that the intake valve of the anesthetic machine according to the target tidal volume and flow rate of the flow meter degree of closure. 本发明还涉及用于控制麻醉机供气量的装置以及包含该装置的麻醉机。 The present invention further relates to an anesthesia machine for air quantity control means and the apparatus comprising an anesthesia machine. 通过本发明的方法或装置,可以实时地将流量计的流量纳入计量范围内,并且实现与吸气阀的联动,使得提供给病人的实际气体量与预先设定的潮气量吻合,确保了病人的安全。 By the method or apparatus according to the present invention, real-time traffic can be included in the measurement range of the meter, and to achieve linkage with the intake valve, so that the actual amount of gas supplied to the patient with a preset tidal volume coincide, ensuring patient safety.

Description

控制麻醉机供气量的方法和装置及包含该装置的麻醉机 Method and apparatus for controlling the supply amount of the anesthesia machine and anesthesia machine comprising the apparatus

技术领域 FIELD

[0001] 本发明涉及医疗设备领域,尤其涉及一种控制麻醉机供气量的方法和装置及包含该装置的麻醉机。 [0001] The present invention relates to the field of medical devices and more particularly relates to a method and apparatus for controlling the amount of gas anesthesia machine and anesthesia machine comprising the apparatus.

背景技术 Background technique

[0002] 麻醉机在工作中需要根据病人的潮气量确定相应的供气量。 [0002] Anesthesia machine needs to determine the appropriate supply amount according to the patient's tidal volume during operation. 潮气量是指人在静态下每次吸入或呼出的气量。 Tidal volume refers to the person in static air inhaled or exhaled every time. 如图1所示,为麻醉机的工作原理简图。 As shown in FIG 1, is a diagram of the working principle of the anesthesia machine. 气源连通至吸气阀,吸气阀是麻醉机的一部分,用于为麻醉机提供驱动动力,经过吸气阀的气体实际并不输送给病人,而是驱动麻醉机提供一个相应量的排量,该排量理论上最好是病人的潮气量。 Gas source communicating to the intake valve, the intake valve is part of the anesthesia machine, for supplying driving power to the anesthesia machine, through the gas intake valve is not actually delivered to the patient, but to provide a drive corresponding amount anesthesia machine discharge the amount of the displacement theory is best tidal volume of the patient. 受此驱动,回路会向病人输送相应量的气体。 By this drive circuit will be a corresponding amount of gas delivery to the patient. 通常在手术中,医生会根据临床经验和实际需求通过管路A补充病人的消耗,同时提供一定的麻药,医生直接通过调整截流阀来调整流量,将电子流量计设置一定的值。 Typically during surgery, the physician based on clinical experience and the actual needs of the patient via line A complement consumption, while providing a certain anesthetic, the doctor directly adjusted by adjusting the flow rate shut-off valve, electronic flow meter set constant value.

[0003] 在现有技术中,医务人员会根据病人的具体情况在麻醉机中设定一个潮气量,麻醉机中的CPU会根据该设定的量控制吸气阀的流量,使吸气阀能够提供所设定的排量(即设定的潮气量),这样,回路在此排量的驱动下,会向病人提供相当于此排量的潮气量。 [0003] In the prior art, the medical staff will be set according to the specific circumstances of the patient in a tidal volume anesthesia machine, anesthesia machine CPU controls the flow of the intake valve in accordance with the set amount, the intake valve displacement can be provided (i.e., the tidal volume set) set, so that, in the driving circuit of this displacement, will provide a tidal volume to the patient corresponding to this displacement.

[0004] 当麻醉机运行中,在设置好潮气量以后,如果打开流量计所在管路,则流经该管路的气体也会提供给病人,这样会造成实际提供给病人的气体会超过原先设定的潮气量,就是说,经过流量计这一路的气体被额外地提供给病人,这会给病人带来很大风险,因为会向病人输送额外的潮气量。 [0004] When the anesthesia machine operation, after the set tidal volume, if you open the pipeline where the flowmeter, the gas flowing through the pipeline will be provided to the patient, this will cause the actual gas will be provided to the patient than previously set tidal volume, that is, the way through the gas flow meter is additionally provided to the patient, this will give the patient a great deal of risk, because the extra tidal volume will be transported to the patient.

发明内容 SUMMARY

[0005] 本发明的目的是解决现有技术中麻醉机不能准确控制所需的供气量的问题。 Objective [0005] The present invention is to solve the problems of the prior art machines can not accurately control the amount of anesthetic gas required to.

[0006] 为实现上述目的,根据本发明的一个方面,提供了一种控制麻醉机供气量的方法,包括: [0006] To achieve the above object, according to one aspect of the invention, there is provided a method of controlling the amount of gas anesthetic machine, comprising:

[0007] 一记录麻醉机的目标潮气量; [0007] a recording target tidal volume anesthesia machine;

[0008] —判断流量计的流速是否为零; [0008] - determining a flow rate meter is zero;

[0009] 一如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度。 [0009] If the flow meter a flow rate of zero, is determined based on the target tidal volume of the intake valve closing degree of the anesthesia machine, if the flow meter is greater than zero, according to the target tidal flow amount and the flow meter determines the degree of closure of the intake valve anesthesia machine. 根据本发明的另一个方面,提供了一种用于控制麻醉机供气量的装置,包括:存储装置,用于记录麻醉机目标潮气量;计算装置,用于判断流量计的流速是否为零;如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度。 According to another aspect of the invention, there is provided an apparatus for controlling a supply amount of the anesthetic machine, comprising: a storage means, the target tidal volume anesthesia apparatus for recording; calculating means for determining the flow rate meter is zero ; flow rate if the meter is zero, it is determined that the degree of closure of the intake valve anesthetic machine according to the target tidal volume, if the flow meter is greater than zero, according to the target tidal volume and the said flow meter determines the degree of closure of the intake valve anesthesia machine.

[0010] 本发明还提供一种控制麻醉机供气量的装置,包括:存储装置,用于记录麻醉机目标潮气量;计算装置,用于判断流量计的流速是否为零;如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度。 [0010] The present invention further provides an anesthetic machine supply amount control apparatus, comprising: storage means for recording the target tidal volume anesthesia machine; computing means for determining a flow rate meter is zero; if the flow zero flow meter, then tidal volume according to the determination of the target intake valve closing degree of the anesthesia machine, if the flow meter is greater than zero, according to the target tidal volume and flow rate of the flow meter determining the degree of closure of the intake valve of the anesthesia machine.

[0011] 根据本发明的又一个方面,还提供了一种麻醉机,包含有前面所述的控制麻醉机供气量的装置。 [0011] According to another aspect of the present invention, there is provided an anesthesia machine, anesthesia machine comprising air quantity control means previously described.

[0012] 通过本发明的方法、装置和麻醉机,可以实时地将流量计的流量纳入计量范围内,并且实现与吸气阀的联动,使得提供给病人的实际气体量与预先设定的潮气量吻合,确保了病人的安全。 [0012] by the method of the present invention, the device and the anesthesia machine, real-time traffic can be included in the measurement range of the meter, and to achieve linkage with the intake valve, so that the actual tidal gas amount supplied to the patient with a preset quantity matching to ensure patient safety.

附图说明 BRIEF DESCRIPTION

[0013] 构成本申请的一部分的附图用来提供对本发明的进一步理解,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。 [0013] The drawings constitute a part of this application are intended to provide further understanding of the invention, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: In the drawings:

[0014] 图1是麻醉机的工作原理图; [0014] Figure 1 is a schematic diagram of anesthesia machine work;

[0015] 图2是本发明方法的流程图;以及 [0015] FIG 2 is a flowchart of a method of the present invention; and

[0016] 图3是本发明一个具体实施例的流程图。 [0016] FIG. 3 is a flowchart of a particular embodiment of the present invention.

具体实施方式 Detailed ways

[0017] 需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。 [0017] Incidentally, in the case of no conflict, embodiments and features of the present embodiments herein may be combined with each other. 下面将参考附图并结合实施例来详细说明本发明。 Below with reference to accompanying drawings and embodiments of the present invention will be described in detail.

[0018] 图2示出了根据本发明的控制麻醉机供气量的方法的流程图,该方法包括: [0018] FIG. 2 shows a flowchart of a control method of the amount of gas anesthetic machine according to the present invention, the method comprising:

[0019] 第一步,记录麻醉机目标潮气量; [0019] The first step, target tidal volume record anesthesia machine;

[0020] 第二步,判断流量计的流速是否为零; [0020] The second step determines the flow rate meter is zero;

[0021] 第三步,如果流量计的流速为零,则根据目标潮气量确定麻醉机的吸气阀的闭合程度,如果流量计的流速大于零,则根据目标潮气量和流量计的流速确定麻醉机的吸气阀的闭合程度。 [0021] The third step, if the flow rate meter is zero, the target tidal volume The degree of closure of the intake valve to determine the anesthetic machine, if the flowmeter flow rate is greater than zero, it is determined that the flow velocity of the flow meter and the target tidal volume degree of closure of the intake valve of the anesthesia machine.

[0022] 在图3示出的一个具体实施例中,根据本发明的方法具体包括下面的步骤: [0022] FIG. 3 shows a specific embodiment of the method according to the present invention comprises the following steps:

[0023] 第一步,麻醉机通过存储装置记录下需要提供给病人的目标潮气量VT。 [0023] The first step, the anesthesia machine need to provide the target tidal volume VT by the patient record storage means.

[0024] 第二步,在吸气阀运行过程中,通过CPU判断流量计的流速是否为零,这可以通过连接在流量计上的传感器来实现,该传感器可以与CPU通信。 [0024] The second step, the intake valve during the operation, the CPU determines the flow rate meter is zero, this can be achieved by a sensor coupled to the flow meter, the sensor may communicate with the CPU.

[0025] 第三步,当流量计的流速为零,则CPU根据目标潮气量确定吸气阀应有的流速,然后根据该应有的流速控制吸气阀的闭合程度,使得麻醉机提供给病人的气量为目标潮气量Vt,吸气阀流速的计算公式为: [0025] The third step, when the flow rate meter is zero, the CPU determines the target tidal volume The flow rate of the intake valve should, then based on the degree of flow control due to the closing of the intake valve, such that anesthesia machines to provide gas to the patient's target tidal volume Vt, the flow rate of the intake valve is calculated as:

Figure CN102266623BD00041

[0027] 其中,Freq.为呼吸频率,I为吸气时间,E为呼气时间,Tp为屏气时间占吸气时间的比例; [0027] wherein, Freq is the frequency of breathing, I is inspiratory time, E is expiratory time, Tp is the percentage of inspiratory breath hold time.;

[0028] 在第二种情况下,如果流量计的流速大于零,则CPU根据目标潮气量和流量计的流速确定吸气阀应有的流速,再根据该应有的流速确定麻醉机的吸气阀的闭合程度,其中吸气阀流速的计算公式为: [0028] In the second case, if the flow meter is greater than zero, the CPU determines the flow rate of the intake valve should target tidal volume and the flow velocity meter, and then determine the absorbance due to the anesthetic machine according to a flow rate degree of closure of the valve, wherein the intake valve flow rate calculation formula is:

[0029] [0029]

Figure CN102266623BD00051

[0030] 其中,Freq.为呼吸频率,I为吸气时间,E为呼气时间,Tp为屏气时间占吸气时间的比例,Vit为流量计的流速。 [0030] wherein, Freq. Respiratory frequency, I is inspiratory time, E is expiratory time, Tp is accounted inspiratory breath hold time ratio, Vit flow meter flow rate.

[0031] 本发明第二方面还提供一种控制麻醉机供气量的装置,其包括:存储装置,用于记录麻醉机目标潮气量;以及计算装置,用于判断流量计的流速是否为零;如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度。 [0031] A second aspect of the present invention further provides an anesthetic gas supply means for controlling the machine, comprising: a storage means for recording the anesthesia machine target tidal volume; and calculating means for determining the flow rate meter is zero ; flow rate if the meter is zero, it is determined that the degree of closure of the intake valve anesthetic machine according to the target tidal volume, if the flow meter is greater than zero, according to the target tidal volume and the said flow meter determines the degree of closure of the intake valve anesthesia machine.

[0032] 本发明还提供了一种麻醉机,其包括上述控制麻醉机供气量的装置。 [0032] The present invention also provides an anesthesia machine, anesthesia machine comprising the control amount of the air supply means.

[0033] 以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。 [0033] The above description is only preferred embodiments of the present invention, it is not intended to limit the invention to those skilled in the art, the present invention may have various changes and variations. 凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the present invention.

Claims (3)

1.一种控制麻醉机供气量的方法,其特征在于,包括: 记录麻醉机目标潮气量; 判断设置在一供气支路上的流量计的流速是否为零; 如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的设置在另一供气支路上的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度; 根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度包括:按照下面的公式确定所述吸气阀的流速, 1. A method for controlling the amount of gas anesthetic machine, characterized by comprising: a recording target tidal volume anesthesia machine; Analyzing flow meter disposed in a branch of the air supply is zero; if the flow rate of the flow meter is zero, it is determined that the target tidal volume the anesthesia machine is provided in the degree of closure of the intake valve of the other branch of the air supply, if the flow meter is greater than zero, and according to the target tidal volume the flow meter determines the degree of closure of the intake valve anesthesia machine; tidal volume is determined according to the target degree of closure of the intake valve of the anesthesia machine comprising: determining the intake valve according to the following formula flow rate,
Figure CN102266623BC00021
其中,Vt为潮气量,Freq.为呼吸频率,I为吸气时间,E为呼气时间,Tp为屏气时间占吸气时间的比例; 根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度包括:按照下面的公式确定所述吸气阀的流速,..Vi Where, Vt is the tidal volume, Freq respiratory frequency, I is inspiratory time, E is expiratory time, Tp is the percentage of inspiratory breath hold time;. Determined according to the target tidal volume and flow rate of the flow meter the degree of closure of the intake valve anesthesia machine comprising: determining a flow rate of said intake valve in accordance with the following formula, .. Vi
Figure CN102266623BC00022
其中,Vt为潮气量,Freq.为呼吸频率,I为吸气时间,E为呼气时间,Tp为屏气时间占吸气时间的比例,V #为流量计的流速。 Where, Vt is the tidal volume, Freq. Respiratory frequency, I is inspiratory time, E is expiratory time, Tp is the inspiratory breath hold time accounting ratio, V # is a flow meter.
2.一种控制麻醉机供气量的装置,其特征在于,包括: 存储装置,用于记录麻醉机目标潮气量; 计算装置,用于判断设置在一供气支路上的流量计的流速是否为零;如果所述流量计的流速为零,则根据所述目标潮气量确定所述麻醉机的设置在另一供气支路上的吸气阀的闭合程度,如果所述流量计的流速大于零,则根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度; 根据所述目标潮气量确定所述麻醉机的吸气阀的闭合程度包括:按照下面的公式确定所述吸气阀的流速, An anesthetic machine supply amount control apparatus, characterized by comprising: storage means for recording the target tidal volume anesthesia machine; computing means is provided for determining whether a supply flow rate meter on the branch is zero; if the flow meter is zero, it is determined that the anesthetic machine is provided in a further degree of closing the intake valve of the gas supply branch if greater than the flow rate of the flow meter according to the target tidal volume zero, it is determined that the degree of closure of the intake valve anesthetic machine according to the target tidal volume and flow rate of the flow meter; tidal volume is determined according to the target intake valve of the degree of closure of the anesthetic machine comprising: Following following formula to determine the flow rate of the intake valve,
Figure CN102266623BC00023
其中,Vt为潮气量,Freq.为呼吸频率,I为吸气时间,E为呼气时间,Tp为屏气时间占吸气时间的比例; 根据所述目标潮气量和所述流量计的流速确定所述麻醉机的吸气阀的闭合程度包括:按照下面的公式确定所述吸气阀的流速, Where, Vt is the tidal volume, Freq respiratory frequency, I is inspiratory time, E is expiratory time, Tp is the percentage of inspiratory breath hold time;. Determined according to the target tidal volume and flow rate of the flow meter the degree of closure of the intake valve anesthesia machine comprising: determining a flow rate of said intake valve in accordance with the following formula,
Figure CN102266623BC00024
其中,Vt为潮气量,Freq.为呼吸频率,I为吸气时间,E为呼气时间,Tp为屏气时间占吸气时间的比例,V #为流量计的流速。 Where, Vt is the tidal volume, Freq. Respiratory frequency, I is inspiratory time, E is expiratory time, Tp is the inspiratory breath hold time accounting ratio, V # is a flow meter.
3.一种麻醉机,其特征在于,包括权利要求2所述的控制麻醉机供气量的装置。 An anesthetic machine, characterized in that the anesthetic machine comprising a control gas supply apparatus according to claim 2.
CN 201010620590 2010-12-31 2010-12-31 Method and apparatus for controlling the supply amount of the anesthesia machine and anesthesia machine comprising the apparatus CN102266623B (en)

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