WO2021243744A1

WO2021243744A1 - Blood oxygen monitoring device and blood oxygen monitoring method

Info

Publication number: WO2021243744A1
Application number: PCT/CN2020/095573
Authority: WO
Inventors: 李晓坤; 奚贇; 蔡慧玲
Original assignee: 江苏赛腾医疗科技有限公司
Priority date: 2020-06-01
Filing date: 2020-06-11
Publication date: 2021-12-09
Also published as: CN113749653A

Abstract

A blood oxygen monitoring device (1) and a blood oxygen monitoring method. The blood oxygen monitoring device (1) comprises a controller (11), a probe (13) and an optical fiber monitoring tube (15); the controller (11) is connected to the probe (13), the probe (13) is provided with a first identification element (131), and the optical fiber monitoring tube (15) is provided with a second identification element (151); the first identification element (131) identifies the second identification element (151) and generates an identification result; and the controller (11) learns an adjustment value according to the identification result, and adjusts, according to the adjustment value, test data of blood tested by the probe (13) by means of the optical fiber monitoring tube (15). After calibration parameters of the optical fiber monitoring tube (15) are identified, an adjustment value is obtained to adjust test data, such that the effect on a numerical value of blood oxygen measured by means of the monitoring tube (15) can be properly reduced, and more accurate blood oxygen data can be obtained.

Description

Blood oxygen monitoring equipment and blood oxygen monitoring method

Technical field

This application relates to the field of medical devices for blood oxygen monitoring, and in particular to a blood oxygen monitoring device and a blood oxygen monitoring method.

Background technique

The blood oxygen concentration detector can also be called Pulse Oximeter (Pulse Oximeter), which is used to measure the amount of oxygen concentration in human blood, that is, it is used to measure the Hemoglobin zone in human blood. A medical device with oxygen capacity. Blood oxygen monitoring is monitored by a specific wavelength light source that can be absorbed by the oxygenated hemoglobin and deoxygenated hemoglobin in the human blood, and the light intensity of the specific wavelength light source will change with the oxygenated hemoglobin and deoxygenated hemoglobin. A physical phenomenon that is adjusted by the concentration. It measures the individual concentration change signals of oxygenated heme and deoxyheme in human blood. Calculate the blood oxygen concentration by ratio conversion or according to the definition formula of blood oxygen concentration.

In the prior art, in the detection process of the blood oxygen monitoring equipment, there are many factors that affect the accuracy of the detection data, such as the material or structure of the monitoring pipeline, which may affect the detection result of the detection deviation.

Summary of the invention

The present application provides a blood oxygen monitoring device and a blood oxygen monitoring method, so as to reduce the problem of the influence of the optical fiber monitoring tube on the detection data.

In order to solve the above technical problems, this application is implemented as follows:

In a first aspect, a blood oxygen monitoring device is provided, which includes a controller, a probe, and an optical fiber monitoring tube, the controller is connected to the probe, the probe has a first identification element, the optical fiber monitoring tube has a second identification element, and the first identification The component recognizes the second recognition component and generates a recognition result. The controller learns the adjustment value according to the recognition result, and adjusts the probe according to the adjustment value to detect the detection data of the blood through the optical fiber monitoring tube.

In a second aspect, a blood oxygen monitoring method is provided, using the blood oxygen monitoring device as in the first aspect to perform blood oxygen monitoring, including: installing an optical fiber monitoring tube on the probe; the first identification element identifies the second identification element, and generates To identify the signal, the first identification element transmits the identification signal to the controller; the controller obtains an adjustment value according to the identification signal; the probe detects the blood flowing through the optical fiber monitoring tube and generates a detection signal, and the probe transmits the detection signal to the controller; Process the detection signal to obtain the detection data; the controller adjusts according to the detection data and the adjustment value to obtain the detection result.

This application provides a blood oxygen monitoring device and a blood oxygen monitoring method. After the blood oxygen monitoring device first recognizes the calibration parameters of the optical fiber monitoring tube through the controller, the controller then searches the corresponding database in the database according to the calibration parameters of the optical fiber monitoring tube Adjust the value. Such an adjustment value can moderately correct the influence of the blood oxygen value detected by the optical fiber monitoring tube, and can obtain more accurate blood oxygen data.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Figure 1 is a cross-sectional view of the blood oxygen monitoring of the present application;

Figure 2 is a combined diagram of blood oxygen monitoring of the present application;

Fig. 3 is a block diagram of the blood oxygen monitoring method of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to Figure 1 and Figure 2 for the cross-sectional view and combination diagram of blood oxygen monitoring. As shown in the figure, the blood oxygen monitoring device 1 of this embodiment includes a controller 11, a probe 13 and an optical fiber monitoring tube 15. The controller 11 is connected to the probe 13. The probe 13 has a first identification element 131, and the optical fiber monitoring tube 15 has a second identification element 151. The first identification element 131 identifies the second identification element 151 and generates an identification result. The controller 11 recognizes As a result, the adjustment value is obtained, and the probe 13 is adjusted according to the adjustment value to detect the detection data of the blood through the optical fiber monitoring tube 15 so that the controller 11 calculates the adjustment value and the detection data to obtain the detection result. In this embodiment, the adjustment value can appropriately correct the detection error of the detection data caused by external factors such as the structure or material of the optical fiber monitoring tube, and obtain a more accurate detection result of the blood oxygen data.

In this embodiment, the controller 11 is a blood oxygen saturation and hematocrit monitoring system. The monitoring system can continuously monitor the blood flowing in the optical fiber monitoring tube 15 and the controller 11 can display relevant detection results in real time. The test data includes blood oxygen saturation, hematocrit value or/and blood temperature. The controller 11 is connected to the probe 13. The probe 13 includes a transmitting optical fiber 133 and a receiving optical fiber 135. The transmitting optical fiber 133 is arranged on one side of the receiving optical fiber 135. The transmitting optical fiber 133 can emit a light source of a specific wavelength. This light source will be oxygenated by the human blood. Hemoglobin and deoxyhemoglobin are absorbed, and the transmitted light intensity of a specific wavelength light source will change according to the concentration of oxygenated hemoglobin and deoxyhemoglobin. The receiving optical fiber 135 will measure the oxygenated hemoglobin in human blood. And deoxyhemoglobin individual concentration change signal. The controller 11 calculates the blood oxygen concentration through proportional conversion or according to the definition formula of the blood oxygen concentration. Among them, there are multiple emitting fibers 133, so that the light source can completely irradiate the blood to be tested, so that the blind angle of the light source can be avoided to cause deviation of the detection result.

Furthermore, the probe 13 is assembled to the optical fiber monitoring tube 15. The first identification element 131 of the probe 13 corresponds to the second identification element 151 of the optical fiber monitoring tube 15. The first identification element 131 is used to identify the second identification element 151 to Obtain recognition results. This identification result includes the calibration parameters of the optical fiber monitoring tube 15. In this embodiment, the second identification element 151 is an electronic tag, and the electronic tag is a radio frequency identification, a two-dimensional code or a barcode. The first identification element 131 is determined according to the specifications of the second identification element 151. The first identification element 131 is an electronic tag reader, which is used to read the information of the second identification element 151. The electronic tag reader is a radio frequency identification (RFID) tag reader, a two-dimensional code reader or a barcode reader. This embodiment does not limit the specifications of the electronic tag reader and the corresponding electronic tag, and it is adjusted according to the needs of the user.

In addition, the probe 13 is assembled to the optical fiber monitoring tube 15, the optical fiber monitoring tube 15 further includes a first fixing member 159, and the probe 13 further includes a second fixing member 137, and the first fixing member 159 and the second fixing member 137 are fixed to each other. In this embodiment, the probe 13 is installed around one end of the optical fiber monitoring tube 15 with a second fixing member 137 protruding to the outside, and two first fixing members 159 are provided on the outer wall of the optical fiber monitoring tube 15. The opposite surfaces of the first fixing members 159 have corresponding notches, so that the second fixing member 137 of the probe can be clamped in the notches of the two first fixing members 159 of the optical fiber monitoring tube 15. In this way, the probe 13 and the optical fiber monitoring tube 15 can be firmly combined, and the detection process will not affect the detection result due to the loose structure of the probe 13 and the optical fiber monitoring tube 15.

In this embodiment, the optical fiber monitoring tube 15 includes a main body 153. The main body 153 has a detection channel 1531 and a detection port 1533. The detection port 1533 is located on one side of the detection channel 1531. The transmitting fiber 133 and the receiving fiber 135 of the probe 13 both correspond to Detection port 1533. In addition, the optical fiber monitoring tube 15 also includes a light-passing mirror 155 and a reflecting surface 157. The light-passing mirror 155 is located at the detection port 1533. The light-passing mirror 155 can receive the light source from the detection channel through the specific light source emitted by the transmitting fiber 133 and the receiving fiber 135. The light source of 1531, the transparent lens 155 has little effect on the light source passing through. The reflective surface 157 is located on the inner wall of the detection channel 1531 corresponding to the detection port, so that the light source intensity of the detection channel 1531 to be fed back to the receiving fiber 135 can be enhanced, in other words, it is beneficial to increase the intensity of the detection signal received by the receiving fiber 135. In this embodiment, the detection channel 1531 of the optical fiber monitoring tube 15 is used to communicate with the tube 2 of the extracorporeal circulation. When the blood of the extracorporeal circulation flows through the tube 2 through the detection channel 1531 of the optical fiber monitoring tube 15, convection The blood oxygen detection is performed through the blood in the optical fiber monitoring tube 15. Among them, cardiopulmonary bypass machines include cardiopulmonary bypass system (extracorporeal membrane oxygenation, ECMO) and artificial heart-lung machine (Heart-Lung Maschine).

Please refer to Figure 3, which is a block diagram of the blood oxygen monitoring method of the present application. As shown in the figure, in this embodiment, the blood oxygen monitoring device 1 is used for blood oxygen monitoring. After the optical fiber monitoring tube 15 is connected to the tube 2 of the extracorporeal circulation, the steps for starting blood oxygen monitoring are as follows:

Step S1: Install the optical fiber monitoring tube 15 on the probe 13.

Step S2: The first identification element 131 identifies the second identification element 151 and generates an identification signal, and the first identification element 131 transmits the identification signal to the controller 11. The identification signal is the calibration parameter of the optical fiber monitoring tube.

Step S3: The controller 11 obtains an adjustment value according to the identification signal. The controller 11 has a built-in database, and the built-in database contains the calibration parameters of the optical fiber monitoring tube 15 and its corresponding material or structure and other related data, and provides adjustment values corresponding to the correction test results based on the above-mentioned related data, so control The device 11 searches the corresponding adjustment value in the database according to the calibration parameters of the optical fiber monitoring tube 15.

Step S4: The probe 13 detects the blood flowing through the optical fiber monitoring tube 15 and generates a detection signal, and the probe 13 transmits the detection signal to the controller 11. The detection signal is that after a light source of a specific wavelength is transmitted through the blood through the transmitting fiber 133, the receiving fiber 135 measures the change of the light source in the blood, and uses the photoelectric conversion technology to obtain the electrical type signal.

Step S5: The controller 11 processes the detection signal to obtain the detection data. This detection data is calculated into blood oxygen concentration by ratio conversion or according to the definition formula of blood oxygen concentration. However, the detection data is affected by the material or structure of the optical fiber monitoring tube 15, resulting in a deviation of the detection number, which is not accurate enough.

Step S6: The controller 11 obtains the detection result after adjusting according to the detection data and the adjustment value. In this embodiment, by adjusting the value, the numerical influence of the blood oxygen detected by the optical fiber monitoring tube 15 can be appropriately corrected, and more accurate blood oxygen data can be obtained.

In summary, this application provides a blood oxygen monitoring device and a blood oxygen monitoring method. The blood oxygen monitoring device can continuously monitor the blood in the optical fiber monitoring tube to obtain blood oxygen data. At the same time, in the above blood oxygen monitoring process, after the controller recognizes the calibration parameters of the optical fiber monitoring tube, the controller searches for the corresponding adjustment value in the database according to the calibration parameters of the optical fiber monitoring tube. Such an adjustment value can moderately correct the influence of the blood oxygen value detected by the optical fiber monitoring tube, and can obtain more accurate blood oxygen data.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of this application, many forms can be made without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the protection of this application.

Claims

A blood oxygen monitoring device, which is characterized by comprising a controller, a probe, and an optical fiber monitoring tube, the controller is connected to the probe, the probe has a first identification element, and the optical fiber monitoring tube has a second identification Element, the first identification element recognizes the second identification element and generates an identification result, the controller learns an adjustment value according to the identification result, and adjusts the probe to pass through the optical fiber according to the adjustment value The monitoring tube detects the detection data of the blood.
The blood oxygen monitoring device according to claim 1, wherein the controller obtains the detection result after calculating the adjustment value and the detection data.
The blood oxygen monitoring device according to claim 1, wherein the detection data includes blood oxygen saturation, hematocrit or/and blood temperature.
The blood oxygen monitoring device according to claim 1, wherein the first identification element is an electronic tag reader, and the second identification element is an electronic tag.
The blood oxygen monitoring device according to claim 4, wherein the electronic tag is a radio frequency identification, a two-dimensional code or a barcode.
The blood oxygen monitoring device according to claim 1, wherein the identification result includes calibration parameters of the optical fiber monitoring tube.
The blood oxygen monitoring device according to claim 1, wherein the optical fiber monitoring tube includes a body, the body has a detection channel and a detection port, the detection port is located on one side of the detection channel, and the The probe corresponds to the detection port.
The blood oxygen monitoring device of claim 7, wherein the optical fiber monitoring tube further comprises a light-transmitting mirror surface and a reflective surface, the light-transmitting mirror surface is located at the detection port, and the reflective surface is located corresponding to the The channel wall surface of the detection channel of the detection port.
8. The blood oxygen monitoring device according to claim 7, wherein the detection channel of the optical fiber monitoring tube is used to communicate with a pipeline of extracorporeal circulation.
The blood oxygen monitoring device according to claim 1, wherein the probe includes a transmitting optical fiber and a receiving optical fiber, and the transmitting optical fiber is arranged on one side of the receiving optical fiber.
9. The blood oxygen monitoring device according to claim 9, wherein there are multiple transmitting optical fibers.
The blood oxygen monitoring device according to claim 1, wherein the optical fiber monitoring tube further includes a first fixing member, the probe further includes a second fixing member, the first fixing member and the second fixing member The fixing pieces are fixed to each other.
A blood oxygen monitoring method, characterized in that using the blood oxygen monitoring device according to any one of claims 1-11 to perform blood oxygen monitoring, comprising:

Installing the optical fiber monitoring tube on the probe;

The first identification element recognizes the second identification element and generates an identification signal, and the first identification element transmits the identification signal to the controller;

The controller obtains the adjustment value according to the identification signal;

The probe detects the blood flowing through the optical fiber monitoring tube and generates a detection signal, and the probe transmits the detection signal to the controller;

The controller processes the detection signal to obtain detection data;

The controller is adjusted according to the detection data and the adjustment value to obtain a detection result.
The blood oxygen monitoring method according to claim 13, wherein in the step of obtaining the adjustment value by the controller according to the identification signal, the calibration of the optical fiber monitoring tube is identified through the identification signal Parameter to obtain the adjustment value.
The blood oxygen monitoring method of claim 14, wherein in the step of identifying the calibration parameters of the optical fiber monitoring tube through the identification signal to obtain the adjustment value, the controller is built-in There is a database, and the controller searches for the corresponding adjustment value in the database according to the calibration parameters of the optical fiber monitoring tube.
The blood oxygen monitoring method according to claim 13, wherein before the step of installing the optical fiber monitoring tube on the probe, the optical fiber monitoring tube is connected to the pipeline of the extracorporeal circulation.