技术领域technical field
本发明属于医疗器械领域，具体地，涉及一种滴定式伺服吸氧的控制方法及控制装置。The invention belongs to the field of medical equipment, and in particular relates to a control method and a control device for titration-type servo oxygen inhalation.
背景技术Background technique
关于呼吸功能障碍，如慢性阻塞性肺疾病、中枢性睡眠呼吸暂停等均可引起呼吸衰竭并导致低氧血症，长期低氧血症得不到有效纠正或改善可严重影响患者的心肺功能及寿命。Regarding respiratory dysfunction, such as chronic obstructive pulmonary disease and central sleep apnea, etc., can cause respiratory failure and lead to hypoxemia. If long-term hypoxemia is not effectively corrected or improved, it can seriously affect the patient's cardiopulmonary function and life.
临床上，固定的低、中或高流量持续或间断吸氧常被应用于各种呼吸功能障碍的患者，但现有吸氧装置存在缺陷，即供给氧流量或浓度是固定的，而实际上患者的低氧程度往往是不断变化的(如活动后低氧加重，休息后减轻)，且这种情况在潮式呼吸患者中尤为明显(即呈现周期性低氧血症)，因此现有的吸氧装置并不能根据患者的血氧需求来补充氧气。Clinically, fixed low, medium or high flow continuous or intermittent oxygen inhalation is often applied to patients with various respiratory dysfunctions, but existing oxygen inhalation devices have defects, that is, the supply oxygen flow or concentration is fixed, but in fact The degree of hypoxia in patients is often variable (such as increased hypoxia after activity and reduced after rest), and this situation is particularly obvious in patients with tidal breathing (ie, presenting periodic hypoxemia), so the existing Oxygen inhalation devices cannot supplement oxygen according to the patient's blood oxygen demand.
目前现有的根据血气分析或指脉氧来进行人工调整吸氧流量或浓度往往耗时费力；而针对实时变化的动脉血氧饱和度，对吸氧流量或浓度进行及时、按需地自动化调整，目前尚属空白。At present, manual adjustment of oxygen inhalation flow or concentration based on blood gas analysis or finger pulse oxygen is often time-consuming and laborious; however, for real-time changes in arterial blood oxygen saturation, timely and on-demand automatic adjustment of oxygen inhalation flow or concentration , which is currently blank.
目前并没有一种能够针对实时变化的动脉血氧饱和度，对吸氧流量或浓度进行及时、按需地自动化调整的控制方法及控制装置，即没有一种滴定式伺服吸氧的控制方法及控制装置。At present, there is no control method and control device that can automatically adjust the flow or concentration of oxygen inhalation in a timely and on-demand manner for the real-time changing arterial blood oxygen saturation, that is, there is no control method and control method for titration servo oxygen inhalation. control device.
发明内容Contents of the invention
本发明提供了一种滴定式伺服吸氧的控制方法及控制装置，根据本发明的一个方面，提供了一种滴定式伺服吸氧的控制方法，其用于根据监测用户血氧饱和度的实时变化对吸氧浓度以及流量进行自动调节，包括：The present invention provides a titration-type servo oxygen inhalation control method and a control device. According to one aspect of the present invention, a titration-type servo oxygen inhalation control method is provided, which is used to monitor the blood oxygen saturation of the user in real time. The change will automatically adjust the oxygen concentration and flow, including:
a.获取用户时刻tn的动脉血氧饱和度；a. Obtain the arterial blood oxygen saturation of the user at time tn ;
b.基于所述动脉血氧饱和度D以及目标血氧饱和度C计算第一差值M；b. Calculate the first difference M based on the arterial blood oxygen saturation D and the target blood oxygen saturation C;
c.判断所述第一差值M，若所述第一差值M大于第一阈值Y，执行步骤d，若所述第一差值M小于第一阈值Y，执行步骤e；c. Judging the first difference M, if the first difference M is greater than the first threshold Y, perform step d, and if the first difference M is smaller than the first threshold Y, perform step e;
d.在时刻tn+1，调节吸氧浓度以及吸氧流量；d. At time tn+1 , adjust the concentration of oxygen inhalation and the flow rate of oxygen inhalation;
e.在时刻tn+1，维持吸氧浓度以及吸氧流量不变；e. At time tn+1 , maintain the oxygen inhalation concentration and oxygen inhalation flow rate unchanged;
f.重复步骤a至e，直至结束调节。f. Repeat steps a to e until the adjustment is complete.
优选地，在所述步骤a之前还包括步骤：实时监测用户的动脉血氧饱和度以及呼吸。Preferably, before the step a, a step is further included: monitoring the user's arterial blood oxygen saturation and respiration in real time.
优选地，所述时刻tn代表用户每次吸气的时刻，所述n≥1。Preferably, the time tn represents the time when the user inhales each time, and n≥1.
优选地，所述的控制方法，其特征在于，所述时刻tn为固定间隔时长X，并满足如下公式：X＝tn+1-tn。Preferably, the control method is characterized in that the time tn is a fixed interval duration X and satisfies the following formula: X=tn+1 -tn .
优选地，所述间隔时长的取值范围为0≤X≤1min。Preferably, the range of the interval duration is 0≤X≤1min.
优选地，所述第一差值M满足如下公式：M＝D-C。Preferably, the first difference M satisfies the following formula: M=D-C.
优选地，所述步骤d包括如下步骤：Preferably, said step d includes the following steps:
d1：对所述第一差值M进行分析；d1: analyzing the first difference M;
d2；若所述第一差值M为正数，增加吸氧浓度以及吸氧流量；d2: If the first difference M is a positive number, increase the concentration of oxygen inhalation and the flow of oxygen inhalation;
d3；若所述第一差值M为负数，降低吸氧浓度以及吸氧流量。d3: If the first difference M is a negative number, reduce the concentration of oxygen inhalation and the flow rate of inhalation oxygen.
优选地，所述第一阈值Y的取值范围为0≤Y≤1％，其中，所述第一阈值Y以及第一差值M为动脉血氧饱和度的百分比数值。Preferably, the value range of the first threshold Y is 0≤Y≤1%, wherein the first threshold Y and the first difference M are percentage values of arterial blood oxygen saturation.
优选地，所述目标血氧饱和度的取值范围为：90％≤C≤98％。Preferably, the value range of the target blood oxygen saturation is: 90%≤C≤98%.
优选地，吸氧流量调节的范围为：0-20升/分。Preferably, the oxygen inhalation flow adjustment range is: 0-20 liters/minute.
优选地，吸氧浓度调节的范围为：24％-60％。Preferably, the adjustment range of oxygen uptake concentration is: 24%-60%.
根据本发明的另一个方面，提供了一种滴定式伺服吸氧的控制装置，包括：According to another aspect of the present invention, a titration servo oxygen inhalation control device is provided, including:
脉氧饱和度监测装置1：用于实时获取用户的动脉血氧饱和度；Pulse oxygen saturation monitoring device 1: used to obtain the user's arterial oxygen saturation in real time;
上位机2：用于对用户的动脉血氧饱和度进行处理分析；Host computer 2: used to process and analyze the user's arterial blood oxygen saturation;
吸氧装置3：用于调节吸氧浓度以及吸氧流量；其中，Oxygen inhalation device 3: used to adjust the oxygen inhalation concentration and oxygen inhalation flow rate; among them,
所述上位机2分别连接所述脉氧饱和度监测装置1以及所述吸氧装置3。The host computer 2 is respectively connected to the pulse oximetry monitoring device 1 and the oxygen inhalation device 3 .
优选地，所述上位机2包括：Preferably, the upper computer 2 includes:
计算模块21：基于所述动脉血氧饱和度D以及目标血氧饱和度C计算第一差值M；Calculation module 21: calculating a first difference M based on the arterial blood oxygen saturation D and the target blood oxygen saturation C;
判断模块22：判断所述第一差值M；Judging module 22: judging the first difference M;
控制模块23：控制所述吸氧装置对所述吸氧浓度以及所述吸氧流量进行调节；其中，Control module 23: controlling the oxygen inhalation device to adjust the oxygen inhalation concentration and the oxygen inhalation flow rate; wherein,
所述判断模块22分别连接所述计算模块21以及所述控制模块23。The judgment module 22 is connected to the calculation module 21 and the control module 23 respectively.
优选地，所述吸氧装置3为文丘里面罩。Preferably, the oxygen inhalation device 3 is a Venturi mask.
本发明提供了一种滴定式伺服吸氧的控制方法及控制装置，通过对患者动脉血氧饱和度进行实时监测，并根据预设的血氧饱和度水平而自动调节文丘里面罩吸氧浓度及氧流量，本发明中用可自动调节的“滴定式”吸氧装备代替传统的固定吸氧模式，克服了固定吸氧模式下不能根据患者对氧气的需求而自动调节吸氧流量、浓度的不足。本发明结构简单、使用方便，功能强大，具有极高的商业价值。The present invention provides a titration-type servo oxygen inhalation control method and control device, which monitors the patient's arterial blood oxygen saturation in real time, and automatically adjusts the oxygen inhalation concentration of the Venturi mask and Oxygen flow, in the present invention, the "titration" oxygen inhalation equipment that can be automatically adjusted is used to replace the traditional fixed oxygen inhalation mode, which overcomes the deficiency that the oxygen inhalation flow and concentration cannot be automatically adjusted according to the patient's oxygen demand in the fixed oxygen inhalation mode . The invention has the advantages of simple structure, convenient use, powerful function and high commercial value.
附图说明Description of drawings
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显：Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
图1示出了本发明的第一具体实施方式的，一种滴定式伺服吸氧的控制方法的具体流程示意图；Fig. 1 shows a specific schematic flow chart of a titration servo oxygen uptake control method according to the first specific embodiment of the present invention;
图2示出了本发明的第一实施例的，在时刻tn+1，调节吸氧浓度以及吸氧流量的具体流程示意图；Fig. 2 shows a schematic flow chart of adjusting the concentration of oxygen inhalation and the flow of oxygen inhalation at time tn+1 of the first embodiment of the present invention;
图3示出了本发明的另一具体实施方式的，一种滴定式伺服吸氧的控制装置的模块连接示意图；以及Fig. 3 shows another specific embodiment of the present invention, a schematic diagram of module connection of a control device for titration servo oxygen inhalation; and
图4示出了本发明的第二实施例的，一种滴定式伺服吸氧的控制装置的具体结构示意图。Fig. 4 shows a schematic diagram of the specific structure of a titration servo oxygen uptake control device according to the second embodiment of the present invention.
具体实施方式detailed description
为了更好的使本发明的技术方案清晰地表示出来，下面结合附图对本发明作进一步说明。In order to better clearly express the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.
图1示出了本发明的第一具体实施方式的，一种滴定式伺服吸氧的控制方法的具体流程示意图，具体地，包括如下步骤：Fig. 1 shows a specific schematic flow chart of a titration servo oxygen uptake control method according to the first embodiment of the present invention, specifically, including the following steps:
首先，进入S101，获取用户时刻tn的动脉血氧饱和度。所述步骤主要目的是需要测出用户某一时刻的动脉血液饱和度，为了更好的了解用户的身体健康状况，从而决定是否需要进行吸氧，在一个优选地实施例中，用户可以通过去A医院让医院医生进行动脉抽血，在通过血液样本化验机来进行检测，正常人体动脉血的血氧饱和度为98％，若检测的结果小于或者等于这个标准的结果，就可以使用吸氧装置，而在另一个变化例中，用户可以自行购买血氧饱和度测试仪在家自行检测血氧饱和度，亦可以定时去医疗卫生站进行检测血氧饱和度，这都不影响本发明的具体实施方案，在此不予赘述。First, enter S101, and obtain the arterial blood oxygen saturation of the user at time tn . The main purpose of the steps is to measure the user’s arterial blood saturation at a certain moment, in order to better understand the user’s physical health and decide whether to inhale oxygen. In a preferred embodiment, the user can go to Hospital A asks the hospital doctor to draw blood from the artery, and then use the blood sample testing machine to test. The oxygen saturation of normal human arterial blood is 98%. If the test result is less than or equal to the standard result, oxygen inhalation can be used. device, and in another variation example, the user can purchase a blood oxygen saturation tester to detect blood oxygen saturation at home, or go to a medical and health station to detect blood oxygen saturation at regular intervals, which does not affect the specific aspects of the present invention. The implementation plan will not be described in detail here.
然后，进入步骤S102，基于所述动脉血氧饱和度D以及目标血氧饱和度C计算第一差值M。在一个优选地实施中，在医学上正常的人体动脉血氧饱和度指标在98％，这里将此指标设为C，然后可以通过医学仪器，例如采光指套式光电传感器来对人体的血氧饱和度进行测量，所述仪器只需将传感器套在人手指上，利用手指作为盛装血红蛋白的透明容器，使用波长660nm的红光和940nm的近红外光作为射入光源，测定通过组织床的光传导强度，来计算血红蛋白浓度及血氧饱和度，通过仪器测出来的血氧饱和度设为D，再用用户仪器测出的血氧饱和度D减去标准人体血氧饱和度指标C，即可得到中间的差值，所述差值设为M。Then, enter step S102, and calculate a first difference M based on the arterial blood oxygen saturation D and the target blood oxygen saturation C. In a preferred implementation, the medically normal arterial blood oxygen saturation index of the human body is 98%, and this index is set as C here, and then the blood oxygen saturation of the human body can be monitored by medical instruments, such as light-emitting finger-cuff photoelectric sensors. To measure saturation, the instrument only needs to put the sensor on the human finger, use the finger as a transparent container for containing hemoglobin, use red light with a wavelength of 660nm and near-infrared light with a wavelength of 940nm as the incident light source, and measure the light passing through the tissue bed The conduction strength is used to calculate the hemoglobin concentration and blood oxygen saturation. The blood oxygen saturation measured by the instrument is set to D, and then the standard human blood oxygen saturation index C is subtracted from the blood oxygen saturation D measured by the user's instrument, that is An intermediate difference can be obtained, which is set to M.
再然后，进入步骤S103，判断所述第一差值M，若所述第一差值M大于第一阈值Y，执行步骤S104，若所述第一差值M小于第一阈值Y，执行步骤S105。所述步骤S103为判断步骤，所述第一阈值Y的取值范围为0≤Y≤1％，此步骤分为两种情况，在第一种情况中，如果M值大于Y值，相当于M值＞1％时，则按步骤S104执行，详细说明请参照下文S104步骤，在第二中情况中，当所述M值小于Y值时，则按照步骤S105执行，详细说明请参照下文S105步骤，在此不予赘述。Then, enter step S103, judge the first difference M, if the first difference M is greater than the first threshold Y, execute step S104, if the first difference M is smaller than the first threshold Y, execute the step S105. The step S103 is a judging step. The value range of the first threshold Y is 0≤Y≤1%. This step is divided into two cases. In the first case, if the value of M is greater than the value of Y, it is equivalent to When M value > 1%, execute according to step S104, please refer to step S104 below for details, in the second case, when the value M is less than Y value, execute according to step S105, please refer to step S105 below for details steps, which will not be repeated here.
在执行完步骤S103，经过判断所述第一差值M大于第一阈值Y，则进入步骤S104，在时刻tn+1，调节吸氧浓度以及吸氧流量，所述调节的方式可以是增加吸氧浓度以及吸氧流量或者减少吸氧浓度以及吸氧流量，所述第一阈值Y的取值可以根据人为来设定，在一个优选地实施例中，当用户在t时刻测出自己的血氧饱和度小于正常的指标值时，所述伺服吸氧装置在下一时刻会加大吸氧浓度和吸氧的流量来确定体内的血氧饱和度到标准值，当用户在t时刻测出自己的血氧饱和度大于正常的指标值时，所述伺服吸氧装置在下一时刻会减少吸氧浓度和吸氧的流量来确定体内的血氧饱和度到标准值。After step S103 is executed, after judging that the first difference M is greater than the first threshold Y, enter step S104, and at time tn+1 , adjust the oxygen inhalation concentration and oxygen inhalation flow rate, the way of adjustment may be to increase Oxygen inhalation concentration and oxygen inhalation flow or reduce oxygen inhalation concentration and oxygen inhalation flow, the value of the first threshold Y can be set artificially, in a preferred embodiment, when the user measures his own When the blood oxygen saturation is lower than the normal index value, the servo oxygen inhalation device will increase the concentration of oxygen inhalation and the flow rate of oxygen inhalation at the next moment to determine the blood oxygen saturation in the body to the standard value. When the oxygen saturation of one's own blood is greater than the normal index value, the servo oxygen inhalation device will reduce the concentration of oxygen inhalation and the flow of oxygen inhalation at the next moment to determine the blood oxygen saturation in the body to the standard value.
而在一个具体的实施例中，所述第一阈值Y为2，用户经过所述步骤S102中的具体实施例，测得所述动脉血氧饱和度D为95，而需要达到的目标血氧饱和度C为98，在这样的实施例中，则经过计算，得出所述第一差值M为3，大于第一阈值，需要对所述吸氧浓度以及吸氧流量进行调节，直至满足第一阈值Y的条件，具体地，所述调节吸氧浓度以及吸氧流量的方式可以参考图2中示出的实施例，在此不予赘述。In a specific embodiment, the first threshold Y is 2, and the user measures the arterial blood oxygen saturation D to be 95 through the specific embodiment in step S102, and the target blood oxygen to be achieved The saturation C is 98. In such an embodiment, after calculation, the first difference M is 3, which is greater than the first threshold. It is necessary to adjust the oxygen inhalation concentration and oxygen inhalation flow rate until it satisfies The condition of the first threshold Y, specifically, the manner of adjusting the oxygen inhalation concentration and the oxygen inhalation flow rate can refer to the embodiment shown in FIG. 2 , which will not be repeated here.
进一步地，吸氧流量调节的范围为：0-20升/分，在这样的实施例中，所述吸氧流量可以设定为10升/分，亦可以设定为15升/分，而在其他的实施例中，还可以根据具体实施情况设定为30升/分，但这种情况较为特殊，但这并不影响本发明的具体实施方案，在此不予赘述。Further, the adjustment range of oxygen inhalation flow rate is: 0-20 liters/min. In such an embodiment, the oxygen inhalation flow rate can be set to 10 liters/min or 15 liters/min. In other embodiments, it can also be set to 30 liters/minute according to the specific implementation situation, but this situation is relatively special, but this does not affect the specific implementation of the present invention, so it will not be repeated here.
进一步地，吸氧浓度调节的范围为：24％-60％，在这样的实施例中，所述吸氧浓度可以为25％，还可以为45％，亦或者58％，本领域技术人员理解，所述调节的因素应根据用户个人体质以及呼吸障碍程度来进行调节。Further, the adjustment range of the oxygen uptake concentration is: 24%-60%. In such an embodiment, the oxygen uptake concentration can be 25%, 45%, or 58%. Those skilled in the art will understand , the adjusted factors should be adjusted according to the user's personal physique and the degree of breathing disorder.
紧接着，进入步骤S105，在时刻tn+1，维持吸氧浓度以及吸氧流量不变，所述步骤是基于步骤S103中所述第一差值M小于第一阈值Y的一种情况，在一个优选地的实施例中，当所述第一差值M小于第一阈值Y时，即表示所述第一差值M在一定程度的误差范围内，不需要对所述吸氧浓度以及吸氧流量进行调节，具体地，用户经过所述步骤S102中的具体实施例，测得所述动脉血氧饱和度D为97.9，而需要达到的目标血氧饱和度C为98，进一步地，所述第一阈值Y为0.2，则经过计算，得出所述第一差值M为0.1，小于第一阈值，则不需要对所述吸氧浓度以及吸氧流量进行调节。Next, enter step S105, at time tn+1 , maintain the oxygen inhalation concentration and oxygen inhalation flow rate unchanged, the step is based on the fact that the first difference M in step S103 is smaller than the first threshold Y, In a preferred embodiment, when the first difference M is smaller than the first threshold Y, it means that the first difference M is within a certain range of error, and there is no need to adjust the oxygen concentration and The oxygen inhalation flow is adjusted. Specifically, the user measures the arterial blood oxygen saturation D to be 97.9 through the specific embodiment in step S102, and the target blood oxygen saturation C to be achieved is 98. Further, If the first threshold Y is 0.2, it is calculated that the first difference M is 0.1, and if it is smaller than the first threshold, it is not necessary to adjust the oxygen inhalation concentration and oxygen inhalation flow.
在本步骤S105中的tn+1时刻是指用户每隔一定的时间进行吸氧，在一个优选地实施例中，所述时刻tn为固定间隔时长X，并满足如下公式：X＝tn+1-tn，其中，所述间隔时长的取值范围为0≤X≤1min，即所述X为某一固定时刻的取值，可以为1分钟，也可以为5分钟，还可以为30秒，在步骤S101中，在时刻tn获取用户的动脉血氧饱和度，并在步骤S104的时刻tn+1对吸氧浓度以及吸氧流量进行调节。The time tn+1 in this step S105 means that the user inhales oxygen at regular intervals. In a preferred embodiment, the time tn is a fixed interval length X, and satisfies the following formula: X=tn+1 -tn , wherein, the value range of the interval is 0≤X≤1min, that is, the value of X is a certain fixed moment, which can be 1 minute, or 5 minutes, or 30 seconds. In step S101, the user's arterial blood oxygen saturation is obtained at time tn , and the oxygen concentration and flow rate of oxygen inhalation are adjusted at time tn+1 in step S104.
而在另一个实施例中，所述时刻tn代表用户每次吸气的时刻，所述n≥1。在这样实施例中，所述时刻t1代表用户第一次吸气的时刻，所述时刻t2代表用户第二次吸气的时刻，即每当用户进行吸气的时刻，执行步骤S104。In another embodiment, the timetn represents the time when the user inhales each time, and n≥1. In such an embodiment, the timet1 represents the time when the user inhales for the first time, and the timet2 represents the time when the user inhales for the second time, that is, step S104 is performed every time the user inhales.
最后，进入步骤S106，重复步骤S101至S105，直至结束调节，所述步骤目的是为了确保用户的血氧饱和度保持健康的状态，所述步骤S101至步骤S105可以参考前述中的步骤S101至步骤S105，在此不予赘述。Finally, enter step S106 and repeat steps S101 to S105 until the adjustment is completed. The purpose of these steps is to ensure that the blood oxygen saturation of the user remains in a healthy state. For the steps S101 to S105, please refer to the aforementioned steps S101 to S105. S105, which will not be described in detail here.
图2示出了本发明的第一实施例的，在时刻tn+1，调节吸氧浓度以及吸氧流量的具体流程示意图，具体地，包括如下步骤：Fig. 2 shows the specific flowchart of adjusting the concentration of oxygen inhalation and the flow of oxygen inhalation at time tn+1 of the first embodiment of the present invention, specifically, including the following steps:
首先，进入步骤S201，对所述第一差值M进行分析，对所述第一差值M分析主要目的是为了通过所述第一差值M的正负情况，来决定对所述吸氧浓度以及吸氧流量进行增加或者降低操作，在一个优选地实施例中，用户自己通过指甲式血氧仪来测量血氧饱和度，当用户测出的指数为95％的血氧饱和度，此指标小于标准的血氧饱和度98％，这时则需要在下个吸氧时刻加大吸氧的流量以及吸氧浓度，若用户自己测出的血氧饱和度为99％，大于标准的血氧饱和度98％，则表明用户体内的血氧饱和度处于过剩状态，则需要降低所述吸氧的流量以及吸氧浓度。First, enter step S201 to analyze the first difference M. The main purpose of analyzing the first difference M is to determine whether the first difference M is positive or negative. Concentration and oxygen inhalation flow are increased or decreased. In a preferred embodiment, the user measures the blood oxygen saturation through the fingernail oximeter. When the user measures the blood oxygen saturation with an index of 95%, the If the index is less than the standard blood oxygen saturation of 98%, it is necessary to increase the flow rate and concentration of oxygen inhalation at the next oxygen inhalation time. If the blood oxygen saturation measured by the user is 99%, which is greater than the standard blood oxygen saturation If the saturation is 98%, it indicates that the blood oxygen saturation in the user's body is in an excess state, and it is necessary to reduce the flow rate and oxygen concentration of the oxygen inhalation.
在这样的实施例中，所述第一差值M满足公式M＝D-C，其中，所述M为第一差值，所述D为动脉血氧饱和度，所述C为目标动脉血氧饱和度，结合上述实施例，当用户测出的指数为95％的血氧饱和度，此指标小于标准的血氧饱和度98％，则得出第一差值M为-3，执行步骤S203，若用户自己测出的血氧饱和度为99％，大于标准的血氧饱和度98％，则得出第一差值M为1，则执行步骤S202。In such an embodiment, the first difference M satisfies the formula M=D-C, wherein the M is the first difference, the D is the arterial blood oxygen saturation, and the C is the target arterial blood oxygen saturation In combination with the above-mentioned embodiment, when the index measured by the user is the blood oxygen saturation of 95%, which is less than the standard blood oxygen saturation of 98%, then the first difference M is -3, and step S203 is executed. If the blood oxygen saturation measured by the user is 99%, which is greater than the standard blood oxygen saturation of 98%, then the first difference M is 1, and step S202 is executed.
然后，进入步骤S202，若所述第一差值M为正数，降低吸氧浓度以及吸氧流量。上述步骤S201中已经详细的解释第一差值M的计算方式，所述M值为正数则代表用户血氧饱和浓度小于标准血氧饱和浓度指标，则需要在下一时刻加大吸氧浓度以及吸氧流量，吸氧浓度的调节范围为：24％-60％根据个人需要进行调节，吸氧流量调节的范围为：0-20升/分，根据个人需要进行调节，在一个选优地实施例中，若用户A通过指甲式血氧仪测得的血氧饱和度为99.5％，而标准的血氧饱和度为98％，这时用户可以调节下次呼吸时的吸氧浓度及吸氧流量，此时调节的方式可以大致分为两种，其1，用户可在下个呼吸时刻急速的降低吸氧浓度及吸氧流量，例如吸氧流量从18升/分降低直接降低到3升/分，吸氧浓度从58％直接降低到28％；其2，用户可以在下个呼吸时刻匀速的降低吸氧浓度及吸氧流量，例如每个呼吸时刻，吸氧流量降低1升/分，直到降低到3升/分时停止，每个呼吸时刻，吸氧浓度降低5％，直到降低到28％时停止，用户亦可以按照自己的身体状况来降低吸氧浓度及吸氧流量，这都不影响本发明的具体实施方案，在此不予赘述。Then, enter step S202, if the first difference M is a positive number, reduce the concentration of oxygen inhalation and the flow rate of inhalation oxygen. The calculation method of the first difference M has been explained in detail in the above step S201. If the value of M is positive, it means that the blood oxygen saturation concentration of the user is lower than the standard blood oxygen saturation concentration index, and it is necessary to increase the oxygen inhalation concentration and Oxygen inhalation flow rate, oxygen inhalation concentration adjustment range: 24%-60% can be adjusted according to individual needs, oxygen inhalation flow adjustment range is: 0-20 liters/min, adjusted according to individual needs, and implemented in one optimal place For example, if the blood oxygen saturation measured by user A through the nail oximeter is 99.5%, while the standard blood oxygen saturation is 98%, then the user can adjust the oxygen concentration and oxygen inhalation level for the next breath. The flow rate can be roughly divided into two ways at this time. 1. The user can rapidly reduce the oxygen concentration and oxygen flow rate at the next breathing moment. For example, the oxygen flow rate is reduced from 18 liters per minute to 3 liters per minute 2, the user can reduce the oxygen concentration and oxygen flow at a constant speed at the next breathing moment, for example, at each breathing moment, the oxygen flow rate is reduced by 1 liter/minute until Stop when it is reduced to 3 liters/min. At each breathing moment, the oxygen inhalation concentration is reduced by 5%, until it is reduced to 28%. Users can also reduce the oxygen inhalation concentration and flow rate according to their physical conditions. The specific implementations that affect the present invention will not be repeated here.
最后，进入步骤S203，若所述第一差值M为负数，增加吸氧浓度以及吸氧流量，所述第一差值M为负数，表明用户的血氧饱和度未达到标准的血氧饱和度，从而需要增加吸氧浓度及吸氧流量，在一个优选地实施中，若用户通过指甲式血氧仪测得的血氧饱和度为92％，而标准的血氧饱和度为98％，这时用户可以调节下次呼吸时的吸氧浓度及吸氧流量，此时调节的方式可以大致分为两种，其1，用户可在下个呼吸时刻急速的增加吸氧浓度及吸氧流量，例如吸氧流量从5升/分降低直接增加到15升/分，吸氧浓度从24％直接增加到48％；其2，用户可以在下个呼吸时刻匀速的增加吸氧浓度及吸氧流量，例如每个呼吸时刻，吸氧流量增加1升/分，直到降低到15升/分时停止，每个呼吸时刻，吸氧浓度增加5％，直到增加到48％时停止，用户亦可以按照自己的身体状况来增加吸氧浓度及吸氧流量，这都不影响本发明的具体实施方案，在此不予赘述。Finally, enter step S203, if the first difference M is a negative number, increase the oxygen inhalation concentration and oxygen inhalation flow rate, and the first difference M is a negative number, indicating that the blood oxygen saturation of the user has not reached the standard blood oxygen saturation Therefore, it is necessary to increase the concentration of oxygen inhalation and the flow of oxygen inhalation. In a preferred implementation, if the blood oxygen saturation measured by the user through the nail oximeter is 92%, while the standard blood oxygen saturation is 98%, At this time, the user can adjust the oxygen inhalation concentration and oxygen inhalation flow during the next breath. At this time, the adjustment methods can be roughly divided into two types. First, the user can rapidly increase the oxygen inhalation concentration and oxygen inhalation flow at the next breath time, For example, the oxygen inhalation flow rate increases directly from 5 liters/min to 15 liters/min, and the oxygen inhalation concentration directly increases from 24% to 48%. For example, at each breathing moment, the oxygen inhalation flow rate increases by 1 liter/minute until it drops to 15 liters/minute, and at each breathing moment, the oxygen inhalation concentration increases by 5% until it reaches 48%, and the user can also adjust according to their own Increase the concentration of oxygen inhalation and the flow rate of inhalation oxygen according to your physical condition, which does not affect the specific embodiments of the present invention, and will not be described in detail here.
图3示出了本发明的另一具体实施方式的，一种滴定式伺服吸氧的控制装置的模块连接示意图。所述控制装置包括脉氧饱和度监测装置，上位机，吸氧装置，计算模块，判断模块以及控制模块。Fig. 3 shows another specific embodiment of the present invention, a schematic diagram of module connection of a control device for titration servo oxygen inhalation. The control device includes a pulse oximetry monitoring device, a host computer, an oxygen inhalation device, a calculation module, a judgment module and a control module.
进一步地，所述脉搏血氧饱和度监测装置由时钟及时序控制电路、驱动电路、传感器及信号放大器、信号分离电路、A/D转换器、微机系统组成，所述脉搏血氧饱和度监测装置是与上位机相连接，通过传感器接受到监测出的血氧饱和度的模拟前级信号，在通过A/D转换器将前级模拟信号转换为数字信号，微机系统进行数据采集以及数据处理，显示血氧饱和度和脉搏的测量值然后传输在上位机屏幕上。Further, the pulse oximetry monitoring device is composed of a clock and timing control circuit, a drive circuit, a sensor and a signal amplifier, a signal separation circuit, an A/D converter, and a microcomputer system. The pulse oximetry monitoring device It is connected with the host computer, receives the analog front-stage signal of the monitored blood oxygen saturation through the sensor, converts the front-stage analog signal into a digital signal through the A/D converter, and the microcomputer system performs data acquisition and data processing. The measured values of blood oxygen saturation and pulse are displayed and then transmitted on the upper computer screen.
进一步地，所述控制装置包括了上位机，所述上位机是指可以直接发出操控命令的计算机，屏幕上显示各种信号变化，在所述滴定式伺服吸氧的装置上主要用于处理用户每次呼吸后的血氧饱和度的数据，从而对其数据进行分析，能更直观的显示用户的血氧饱和度状态。Further, the control device includes a host computer, the host computer refers to a computer that can directly issue manipulation commands, various signal changes are displayed on the screen, and the titration-type servo oxygen inhalation device is mainly used to process user The blood oxygen saturation data after each breath, so that the data can be analyzed to more intuitively display the user's blood oxygen saturation status.
进一步地，所述上位机包含了计算模块，判断模块以及控制模块，通过所述脉氧饱和度监测装置监测到的用户的实时血氧饱和度，计算模块会计算出第一差值M，进一步地，判断模块会分析第一差值M的数据，将所述判断模块分析之后的数据传输到控制模块，根据第一差值M的数据，控制模块会相对应的调整呼吸装置的吸氧量以及吸氧浓度。Further, the host computer includes a calculation module, a judgment module and a control module, and the calculation module will calculate the first difference M through the real-time blood oxygen saturation of the user monitored by the pulse oxygen saturation monitoring device, and further , the judgment module will analyze the data of the first difference M, and transmit the data analyzed by the judgment module to the control module, and according to the data of the first difference M, the control module will correspondingly adjust the oxygen uptake capacity and Oxygen concentration.
本领域技术人员理解，所述控制装置包括了脉氧饱和度监测装置，在一个优选地实施例中，所述脉氧饱和度监测装置可以是指甲式血氧仪，利用手指作为盛装血红蛋白的透明容器，使用波长660nm的红光和940nm的近红外光作为射入光源，测定通过组织床的光传导强度，来计算血氧饱和度，从而获得用户的实时血氧饱和度。Those skilled in the art understand that the control device includes a pulse oximeter monitoring device. In a preferred embodiment, the pulse oximeter monitoring device can be a fingernail oximeter, using fingers as a transparent container containing hemoglobin. The container uses red light with a wavelength of 660nm and near-infrared light with a wavelength of 940nm as the incident light source to measure the light transmission intensity through the tissue bed to calculate the blood oxygen saturation, so as to obtain the user's real-time blood oxygen saturation.
进一步地，所述控制装置包括了吸氧装置，所述吸氧装置通过上述脉氧饱和度监测装置检测到用户实时的血氧饱和度，以及上位机分析的血氧数据，来对用户的供氧需求进行调节的装置，目的是为了能让用户的血氧饱和度稳定在标准值的范围之内。Further, the control device includes an oxygen inhalation device, and the oxygen inhalation device detects the user's real-time blood oxygen saturation through the above-mentioned pulse oxygen saturation monitoring device, and the blood oxygen data analyzed by the host computer, to supply the user with The device that adjusts the oxygen demand is to keep the user's blood oxygen saturation stable within the range of the standard value.
所述吸氧装置为文丘里面罩，文丘里面罩是根据文丘里(Venturi)原理制成，即氧气经狭窄的孔道进入面罩时在喷射气流的周围产生负压，携带一定量的空气从开放的边缘流入面罩，面罩边缝的大小改变空气与氧的比率，这样更好的控制了空气与氧的比例。The oxygen inhalation device is a Venturi mask, and the Venturi mask is made according to the Venturi principle, that is, when oxygen enters the mask through a narrow hole, a negative pressure is generated around the jet stream, and a certain amount of air is carried from the open The edge flows into the mask, and the size of the mask seam changes the air to oxygen ratio, which gives better control over the air to oxygen ratio.
进一步地，所述控制装置包括了计算模块，所述计算模块是计算用户血氧饱和度与标准血氧饱和度的第一差值M，在一个优选地实施中，用户去医院检测血氧饱和度，用户带上指甲式血氧仪，进行一次呼吸，这时上位机屏幕上显示出的A用户的血氧饱和度为95％，与目标血氧饱和度差值为-3，所述计算模块计算出于标准血氧饱和度差值。Further, the control device includes a calculation module, the calculation module is to calculate the first difference M between the user's blood oxygen saturation and the standard blood oxygen saturation, in a preferred implementation, the user goes to the hospital to detect the blood oxygen saturation The user wears a fingernail oximeter and takes a breath. At this time, the blood oxygen saturation of user A displayed on the host computer screen is 95%, and the difference between the target blood oxygen saturation is -3. The calculation The module calculates the standard blood oxygen saturation difference.
进一步地，所述控制装置包括了判断模块，所述判断模块判断所述第一差值M，本领域技术人员理解，对于所述第一差值M的判断其目的是更好的掌握用户血氧饱和度的状态，从而对吸氧装置进行调节。Further, the control device includes a judging module, and the judging module judges the first difference M. Those skilled in the art understand that the purpose of judging the first difference M is to better grasp the blood pressure of the user. The state of oxygen saturation, so as to adjust the oxygen device.
进一步地，所述控制装置还包括控制模块，控制所述吸氧装置对所述吸氧浓度以及所述吸氧流量进行调节，其目的是根据用户的身体需要来进行适度的调节，根据上述上位机对动脉血氧饱和度进行处理分析，来增加或者减少供氧量。Further, the control device also includes a control module, which controls the oxygen inhalation device to adjust the oxygen inhalation concentration and the oxygen inhalation flow rate, the purpose of which is to make appropriate adjustments according to the user's physical needs, according to the above-mentioned upper The machine processes and analyzes the oxygen saturation of arterial blood to increase or decrease the oxygen supply.
图4示出了本发明的第二实施例的，一种滴定式伺服吸氧的控制装置的具体结构示意图，具体地，本发明提供了一种滴定伺服吸氧的控制方法及控制装置，通过所述脉氧饱和度监测装置可以实时监测用户时刻tn的动脉血氧饱和度，基于用户实时的血氧饱和度，通过计算模块，计算出用户实时的血氧饱和度于目标血氧饱和度的第一差值M，通过判断模块对第一差值M进行数据分析，若所述第一差值M大于阈值Y则通过控制模块对吸氧装置进行吸氧浓度和吸氧流量的调节，若所述第一差值M在阈值Y内则保持当前吸氧浓度以及吸氧流量不变，最后重复上述步骤，直到用户血氧饱和度达到标准值。Fig. 4 shows a specific structural schematic diagram of a titration servo oxygen inhalation control device according to the second embodiment of the present invention. Specifically, the present invention provides a titration servo oxygen inhalation control method and control device, through The pulse oxygen saturation monitoring device can monitor the user's arterial blood oxygen saturation at time tn in real time, and calculate the user's real-time blood oxygen saturation to the target blood oxygen saturation through the calculation module based on the user's real-time blood oxygen saturation The first difference M, through the judgment module to analyze the data of the first difference M, if the first difference M is greater than the threshold value Y, then the oxygen inhalation device is adjusted through the control module to the oxygen inhalation concentration and oxygen inhalation flow, If the first difference M is within the threshold Y, the current concentration of oxygen inhalation and flow rate of oxygen inhalation remain unchanged, and finally the above steps are repeated until the blood oxygen saturation of the user reaches the standard value.
更为具体地，本发明中用可自动调节的“滴定式”吸氧装备代替传统的固定吸氧模式，克服了固定吸氧模式下不能根据患者对氧气的需求而自动调节吸氧流量/浓度这一不足。在本发明中，由动脉血氧饱和度监测指套对患者的动脉血氧进行实时监测，将数据传入上位机并对信号进行接收和整合后，根据实际与目标血氧之间的差值将氧气需求指令下传到吸氧调节装置，最终对吸氧流量及浓度进行实时调节。在一个优选地实施例中，如果实际血氧饱和度＜目标血氧饱和度，增加吸氧流量/浓度；反之降低吸氧流量/浓度。More specifically, in the present invention, the "titration" oxygen inhalation equipment that can be automatically adjusted is used to replace the traditional fixed oxygen inhalation mode, which overcomes the inability to automatically adjust the oxygen inhalation flow/concentration according to the oxygen demand of the patient in the fixed oxygen inhalation mode. This deficiency. In the present invention, the patient's arterial blood oxygen is monitored in real time by the arterial blood oxygen saturation monitoring finger cuff, the data is transmitted to the host computer and after the signal is received and integrated, according to the difference between the actual and the target blood oxygen The oxygen demand command is transmitted to the oxygen inhalation adjustment device, and finally the oxygen inhalation flow and concentration are adjusted in real time. In a preferred embodiment, if the actual blood oxygen saturation < target blood oxygen saturation, increase the oxygen inhalation flow/concentration; otherwise, decrease the oxygen inhalation flow/concentration.
由于患者的血氧状态是不断变化的，系统会根据每个呼吸中测得的血氧饱和度，利用滴定法则对每个新的呼吸周期的氧气需求进行计算、更新，并得出下一个呼吸周期所需的吸氧流量/浓度。总之，伺服吸氧模式能为患者提供最佳的、最安全的吸氧流量及浓度，且操作简单，极大地减轻了医务工作者的工作量，避免了传统固定流量/浓度的吸氧模式所致的患者供氧不足或过度的情况。Since the blood oxygen status of the patient is constantly changing, the system will calculate and update the oxygen demand of each new breathing cycle according to the blood oxygen saturation measured in each breath, and then obtain the next breath Oxygen flow/concentration required for the cycle. In short, the servo oxygen inhalation mode can provide patients with the best and safest oxygen inhalation flow and concentration, and is easy to operate, which greatly reduces the workload of medical workers and avoids the traditional fixed flow/concentration oxygen inhalation mode. resulting in hypoxia or hyperxia of the patient.
更进一步地，吸氧装置为可自动调节流量的吸氧系统。其受上位机输出的信号调控，可根据所监测的患者血氧饱和度的实时变化，及时对吸氧流量/浓度进行自动调节。该伺服吸氧系统需设置的参数如下：目标血氧饱和度：如94％，吸氧的流量调节范围：0-20升/分，吸氧浓度：24％-60％。给氧规则如下：采取“滴定式”给氧，即患者实际血氧饱和度低于目标血氧饱和度时，每分钟上调吸氧流量1升/分，同时上调氧浓度(将文丘里刻度上调一格)；反之，若患者实际血氧饱和已接近、达到甚至大于目标血氧饱和度时，逐级下调吸氧浓度及吸氧流量(调整方法同前)；直至血氧饱和度达到目标终点，维持当前吸氧流量及浓度不变。Furthermore, the oxygen inhalation device is an oxygen inhalation system that can automatically adjust the flow rate. It is regulated by the signal output by the host computer, and can automatically adjust the oxygen inhalation flow/concentration in time according to the real-time changes in the monitored blood oxygen saturation of the patient. The parameters to be set for the servo oxygen inhalation system are as follows: Target blood oxygen saturation: such as 94%, oxygen inhalation flow adjustment range: 0-20 liters/min, oxygen inhalation concentration: 24%-60%. Oxygen supply rules are as follows: "titration" oxygen supply is adopted, that is, when the actual blood oxygen saturation of the patient is lower than the target blood oxygen saturation, the oxygen inhalation flow rate is increased by 1 liter/min per minute, and the oxygen concentration is increased at the same time (up the Venturi scale On the contrary, if the patient's actual blood oxygen saturation is close to, reaches or even exceeds the target blood oxygen saturation, gradually lower the oxygen concentration and oxygen flow rate (the adjustment method is the same as before); until the blood oxygen saturation reaches the target end point , to maintain the current flow rate and concentration of oxygen inhalation unchanged.
以上对本发明的具体实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变形或修改，这并不影响本发明的实质内容。Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention.
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| CN201710691302.1ACN107320823A (en) | 2017-08-14 | 2017-08-14 | The control method and control device of a kind of titration type servo oxygen uptake |
| Application Number | Priority Date | Filing Date | Title |
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| CN201710691302.1ACN107320823A (en) | 2017-08-14 | 2017-08-14 | The control method and control device of a kind of titration type servo oxygen uptake |
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| CN201710691302.1APendingCN107320823A (en) | 2017-08-14 | 2017-08-14 | The control method and control device of a kind of titration type servo oxygen uptake |
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