Anesthesia auxiliary anesthesia system

Abstract

The application relates to the technical field of medical devices, and particularly provides an auxiliary anesthesia system for anesthesiology, which comprises a laryngeal mask body, the laryngeal mask body comprises: a main pipeline, a first end of the main pipeline is connected with a cover part, a second end of the main pipeline is respectively connected with a first interface pipe and a second interface pipe, a first channel and a second channel are arranged in the main pipeline, the first channel is communicated with the first interface pipe, the second channel is communicated with the second interface pipe, a drainage pipe is inserted into the second channel through the second interface pipe, the cover part is provided with a drainage hole communicated with the drainage pipe, and the cover part comprises an air bag; an inflation pipe, one end of the inflation pipe is communicated with the air bag, a control valve is arranged on the inflation pipe, a pressure measuring device is further arranged on the inflation pipe, and the other end of the inflation pipe is communicated with an air pump. The application can perform drainage and ventilation, can detect air pressure, can timely remind air pressure adjustment when the air pressure data is abnormal, and can guarantee the use reliability of the device. The auxiliary device is arranged, and the air bag can be controlled through the auxiliary air pump when the air pump has a problem.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an auxiliary anesthesia system for anesthesiology. Background Technology

[0002] A laryngeal mask airway (LMA) is a device used to establish a breathing channel and maintain ventilation in unconscious patients. Common LMAs are inserted into the patient's larynx, inflate to form an elastic cuff that fits snugly against the laryngeal cavity, preventing air leakage during respiration. The cuff is then connected to a ventilator via a tubing. However, due to the materials and manufacturing process of the cuff, leakage can occur under pressure, compromising the safety of the air supply. Currently, LMAs are a common airway management tool under general anesthesia and are crucial for maintaining adequate ventilation during surgery.

[0003] Existing laryngeal mask ventilation devices, such as the improved visual laryngeal mask (CN208678103U), have the following problems: 1. The lack of air pressure monitoring makes it difficult to adjust the air pressure as needed; 2. The inflation tube has only one inflation / deflation control position. If the inflation / deflation control position is abnormal, it will affect the use of the airbag. Summary of the Invention

[0004] The present invention provides an auxiliary anesthesia system for anesthesiology departments to solve at least one of the aforementioned technical problems.

[0005] To address the aforementioned technical problems, this invention discloses an auxiliary anesthesia system for anesthesiology departments, comprising a laryngeal mask body, the laryngeal mask body comprising: The main pipe has a first end connected to a cover and a second end connected to a first interface pipe and a second interface pipe, respectively. The main pipe is provided with a first channel and a second channel. The first channel is connected to the first interface pipe and the second channel is connected to the second interface pipe. A drainage pipe is inserted into the second channel through the second interface pipe. The cover is provided with a drainage hole connected to the drainage pipe. The cover includes an airbag. An inflation tube is provided, with one end connected to the airbag, a control valve and a pressure measuring device on the inflation tube, and the other end connected to an air pump.

[0006] Preferably, the pressure measuring device includes a second pressure sensor, a first pressure sensor is installed inside the airbag, and a second pressure sensor is installed on the inflation tube at the end near the airbag on the control valve. The first control device is electrically connected to the control valve, the air pump, the first pressure sensor, and the second pressure sensor.

[0007] Preferably, one end of the control valve is also connected to an auxiliary device, which includes: a connecting air pipe connected to one end of the control valve, and an auxiliary air pump connected to the connecting air pipe.

[0008] Preferably, it also includes an air pump assessment device for performing an assessment before the mask is placed on the human body. The air pump assessment device includes: The first flow sensor is used to detect the gas flow rate at the end of the inflation tube located near the control valve and close to the air bladder. A timer is used to keep track of the air pump's operating time. The storage module stores the first standard gas pressure change curve, the second standard gas pressure change curve, and the standard gas flow rate change curve. The first acquisition module is used to acquire the target operating power of the air pump during the current anesthesia process; The first alarm and the second alarm, and the first control device are electrically connected to the first flow sensor, the timer, the first acquisition module, the first alarm, the second alarm, and the storage module, respectively. The first control device controls the operation of the first alarm and the second alarm based on the first flow sensor, the timer, the first acquisition module, the first air pressure sensor, the second air pressure sensor, and the storage module.

[0009] Preferably, the first control device controls the operation of the first alarm and the second alarm based on the first flow sensor, timer, first acquisition module, first air pressure sensor, second air pressure sensor, and storage module, including: Step S1: Place the cover inside the simulated human body. The first control device controls the air pump to work at the target working power to inflate and deflate the airbag, and controls the first flow sensor, timer, first air pressure sensor and second air pressure sensor to work in real time. Step S2: Based on the detection value of the second air pressure sensor, construct a second actual air pressure change curve, with time as the horizontal axis and the detection value of the second air pressure sensor as the vertical axis. Based on the detection value of the first air pressure sensor, a first actual air pressure change curve is constructed, with time as the horizontal axis and the detection value of the first air pressure sensor as the vertical axis. Based on the detection value of the first flow sensor, an actual gas flow rate change curve is constructed, with time as the horizontal axis and the detection value of the first flow sensor as the vertical axis. Step S3: Divide the second actual air pressure change curve into several first segments according to different working processes, and divide the second standard air pressure change curve into several second segments according to different working processes. The first segment and the second segment correspond one-to-one, and obtain the first similarity between the first segment and the corresponding second segment. The actual gas flow rate change curve is divided into several third segments according to different working processes, and the standard gas flow rate change curve is divided into several fourth segments according to different working processes. The third segments and the fourth segments correspond one-to-one, and the second similarity between the third segment and the corresponding fourth segment is obtained. Step S4: Mark the first target line in the first sub-segment. The ordinate of the first target line is the second average standard air pressure obtained from the corresponding second sub-segment. Mark the second target line in the third sub-segment. The ordinate of the second target line is the average standard flow rate obtained from the corresponding fourth sub-segment. Step S5: Obtain a first evaluation value based on the first similarity and the second similarity; when the first evaluation value is less than a first preset value, the first control device controls the first alarm to sound. Step S6: Obtain the third similarity between the first actual air pressure change curve and the corresponding first standard air pressure change curve. When the third similarity is less than the second preset value, the first control device controls the second alarm to sound an alarm.

[0010] Preferably, the first evaluation value is obtained based on the first similarity and the second similarity according to the following formula; ; The first evaluation value, Let F be the first similarity between the f-th first sub-segment and its corresponding second sub-segment; F is the total number of first sub-segments; and R is the total number of third sub-segments. The importance of the f-th first sub-segment; Let r be the second similarity between the r-th third sub-segment and the corresponding fourth sub-segment; Let r be the importance of the third sub-segment; , These are the first evaluation weight and the second evaluation weight, respectively. The area above the first target line is enclosed by the longitudinal extension line of the boundary of the f-th first sub-segment and its x-coordinate; The area below the first target line is enclosed by the longitudinal extension line of the boundary of the f-th first sub-segment and its x-coordinate; for The corresponding maximum allowed value; Let be the area of ​​the portion above the second target line enclosed by the longitudinal extension line of the boundary of the r-th third sub-segment and its x-coordinate, and the r-th third sub-segment. The area below the second target line enclosed by the longitudinal extension line of the boundary of the r-th third sub-segment and its x-coordinate (i.e., the boundary whose x-coordinate is always the x-coordinate of the third sub-segment, such as the extension line with x-coordinate of 1S and x-coordinate of 20S when the x-coordinate of the r-th third sub-segment is 1-20S) and the r-th third sub-segment. for The corresponding maximum allowed value; is a natural constant with a value of 2.72.

[0011] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0012] Compared with the prior art, the present invention has the following beneficial effects: After the operator aligns the laryngeal mask airway with the trachea, the lower end of the drainage tube is aligned with the patient's esophagus. The drainage tube is inserted into the second channel through the second interface tube. The drainage tube can be used for drainage of secretions or refluxed material from the larynx. A first and second air pressure sensor are installed to detect the air pressure at the corresponding location. The air pressure is transmitted to the control device, which displays the readings on a display device electrically connected to the control device. When the air pressure data is abnormal, it promptly alerts the user to adjust the air pressure, ensuring the reliability of the device. An auxiliary device is also included; if the air pump malfunctions, the auxiliary air pump can be used to assist in controlling the cuff. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] In the diagram: 1. Main pipe; 2. Cover; 3. First interface pipe; 4. Second interface pipe; 5. Inflation pipe; 6. Drainage pipe; 7. Auxiliary device; 71. Connecting air pipe; 72. Auxiliary air pump; 9. Control valve. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0017] The present invention provides the following embodiments. Example 1 This invention provides an auxiliary anesthesia system for anesthesiology departments, such as... Figure 1 As shown, it includes a laryngeal mask body, which includes: A main pipe 1 is provided, with its first end connected to a cover 2 and its second end connected to a first interface pipe 3 and a second interface pipe 4. A first channel and a second channel are provided inside the main pipe 1. The first channel is connected to the first interface pipe 3 and the second channel is connected to the second interface pipe 4. A drainage pipe 6 is inserted into the second channel through the second interface pipe 4. The cover 2 is provided with a drainage hole connected to the drainage pipe 6 and includes an airbag. Preferably, the drainage pipe 6 and the second interface pipe 4 are detachably connected.

[0018] An inflation tube 5 is provided, one end of which is connected to the airbag. A control valve 9 is provided on the inflation tube 5, and a pressure measuring device is also provided on the inflation tube 5. The other end of the inflation tube 5 is connected to an air pump.

[0019] Preferably, the pressure measuring device includes a second pressure sensor, a first pressure sensor is installed inside the airbag, and a second pressure sensor is installed on the inflation tube 5 at the end near the airbag adjacent to the control valve 9. A first control device is electrically connected to the control valve 9, the air pump, the first pressure sensor, and the second pressure sensor. When the first pressure sensor is outside its preset range, the control device activates the corresponding alarm; when the second pressure sensor is outside its preset range, the control device also activates the corresponding alarm. Preferably, one end of the control valve 9 is also connected to an auxiliary device 7, which includes: a connecting air pipe 71, which is connected to one end of the control valve 9, and an auxiliary air pump 72 is connected to the connecting air pipe 71.

[0020] The beneficial effects of the above technical solution are as follows: When the operator aligns the laryngeal mask airway with the trachea, the lower end of the drainage tube is aligned with the patient's esophagus. The drainage tube 6 is inserted into the second channel through the second interface tube 4. The drainage tube 6 can be used for drainage of secretions or reflux from the larynx. A first and second air pressure sensor are installed to detect the air pressure at the corresponding location. The air pressure is transmitted to the control device and displayed on a display device electrically connected to the control device. When the air pressure data is abnormal, it promptly prompts for adjustment, ensuring the reliability of the device. An auxiliary device is also included; when the air pump malfunctions, the auxiliary air pump can be used to assist in controlling the cuff.

[0021] Example 2, based on Example 1, further includes an air pump evaluation device. This device is used to perform an evaluation before the cover 2 is placed on the human body. The air pump evaluation device includes: The first flow sensor is used to detect the gas flow rate at the end of the inflation tube 5 located near the air bladder at the control valve 9. A timer is used to keep track of the air pump's operating time. The storage module stores the first standard gas pressure change curve, the second standard gas pressure change curve, and the standard gas flow rate change curve. The first acquisition module is used to acquire the target operating power of the air pump during the current anesthesia process; A first alarm and a second alarm, and a first control device are electrically connected to a first flow sensor, a timer, a first acquisition module, a first alarm, a second alarm, and a storage module, respectively. The first control device controls the operation of the first alarm and the second alarm based on the first flow sensor, the timer, the first acquisition module, the first air pressure sensor, the second air pressure sensor, and the storage module, including: Step S1: Place the cover 2 inside the simulated human body. The first control device controls the air pump to work at the target working power to inflate and deflate the airbag, and controls the first flow sensor, timer, first air pressure sensor and second air pressure sensor to work in real time. Step S2: Based on the detection value of the second air pressure sensor, construct a second actual air pressure change curve, with time as the horizontal axis and the detection value of the second air pressure sensor as the vertical axis. Based on the detection value of the first air pressure sensor, a first actual air pressure change curve is constructed, with time as the horizontal axis and the detection value of the first air pressure sensor as the vertical axis. Based on the detection value of the first flow sensor, an actual gas flow rate change curve is constructed, with time as the horizontal axis and the detection value of the first flow sensor as the vertical axis. Step S3: Divide the second actual air pressure change curve into several first segments according to different working processes, and divide the second standard air pressure change curve into several second segments according to different working processes. The first segment and the second segment correspond one-to-one, and obtain the first similarity between the first segment and the corresponding second segment. The actual gas flow rate change curve is divided into several third segments according to different working processes (including inflation, deflation and settling processes), and the standard gas flow rate change curve is divided into several fourth segments according to different working processes. The third segments and the fourth segments correspond one-to-one, and the second similarity between the third segment and the corresponding fourth segment is obtained. Step S4: Mark the first target line in the first sub-segment. The ordinate of the first target line is the second average standard air pressure obtained from the corresponding second sub-segment. Mark the second target line in the third sub-segment. The ordinate of the second target line is the average standard flow rate obtained from the corresponding fourth sub-segment. Step S5: Obtain a first evaluation value based on the first similarity and the second similarity; when the first evaluation value is less than a first preset value, the first control device controls the first alarm to sound. Step S6: Obtain the third similarity between the first actual air pressure change curve and the corresponding first standard air pressure change curve. When the third similarity is less than the second preset value, the first control device controls the second alarm to sound an alarm.

[0022] Preferably, the first evaluation value is obtained based on the first similarity and the second similarity according to the following formula; ; The first evaluation value, Let F be the first similarity between the f-th first sub-segment and its corresponding second sub-segment; F is the total number of first sub-segments; and R is the total number of third sub-segments. The importance of the f-th first sub-segment; Let r be the second similarity between the r-th third sub-segment and the corresponding fourth sub-segment; Let r be the importance of the third sub-segment; , These are the first evaluation weight and the second evaluation weight (with values ​​greater than 0 and less than 1), respectively. The area above the first target line is enclosed by the longitudinal extension line of the boundary of the f-th first sub-segment and its x-coordinate; The area below the first target line is enclosed by the longitudinal extension line of the boundary of the f-th first sub-segment and its x-coordinate; for The corresponding maximum allowed value; Let be the area of ​​the portion above the second target line enclosed by the longitudinal extension line of the boundary of the r-th third sub-segment and its x-coordinate, and the r-th third sub-segment. Let R be the area of ​​the portion located below the second target line enclosed by the longitudinal extension line of the boundary of the r-th third sub-segment and its x-coordinate, and the r-th third sub-segment. for The corresponding maximum allowed value; is a natural constant with a value of 2.72.

[0023] The beneficial effects of the above technical solution are as follows: The air pump evaluation device is used to perform evaluation work before the cover 2 is placed on the human body, to ensure that the air pump of the present invention is used normally, and to avoid unexpected events affecting the operation of the surgery when the cover 2 of the present invention is used during surgery. During the evaluation process: The cover 2 is placed inside the simulated human body. The first control device controls the air pump to operate at the target power, inflating and deflating the airbag. Based on the sensor readings during the inflation and deflation process, a second actual air pressure change curve, a first actual air pressure change curve, and an actual gas flow rate change curve are constructed to reliably evaluate air pressure and flow rate. Specifically: The second actual air pressure change curve is divided into several first segments according to different working processes, and the second standard air pressure change curve is divided into several second segments according to different working processes, so as to realize the corresponding evaluation of the actual second air pressure and the standard second air pressure according to different working processes (including inflation process, deflation process and static process); The actual gas flow rate change curve is divided into several third segments according to different working processes, and the standard gas flow rate change curve is divided into several fourth segments according to different working processes, so as to realize the evaluation of actual flow rate and standard flow rate according to different working processes (including inflation process, deflation process and static process); Obtain the first similarity between the first sub-segment and the corresponding second sub-segment, and the second similarity between the third sub-segment and the corresponding fourth sub-segment, to obtain the matching status between the actual gas pressure change state and the standard gas pressure change state, and to obtain the matching status between the actual gas flow rate change state and the standard gas flow rate change state. The first evaluation value (reflecting the inflation / deflation performance of the air pump and the gas transmission performance of the inflation tube 5) is based on: first similarity (the matching between the actual gas pressure change state and the standard gas pressure change state / trend), second similarity (the matching between the actual gas flow rate change state and the standard gas flow rate change state / trend), the importance of the first segment and the importance of the third segment (and different working processes (segments) have different degrees of impact on the surgery), and the second average standard gas pressure state corresponding to the deviation of the second actual gas pressure. The actual flow rate deviates from the corresponding average standard flow rate. The calculation is reliable.

[0024] When the first evaluation value is less than the first preset value, the first control device controls the first alarm to sound an alarm, so that when the air pump's charging and discharging performance is abnormal or the gas transmission performance of the charging pipe 5 is abnormal, an alarm is triggered for timely repair. The first control device obtains the third similarity between the first actual air pressure change curve and the corresponding first standard air pressure change curve. When the third similarity is less than the second preset value, the first control device controls the second alarm to sound an alarm, so as to promptly alarm when the air pressure inside the airbag is abnormal and remind maintenance.

[0025] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An auxiliary anesthesia system for anesthesiology, characterized in that: Includes the laryngeal mask body, which includes: The main pipe (1) is connected to the cover (2) at its first end and to the first interface pipe (3) and the second interface pipe (4) at its second end. The main pipe (1) is provided with a first channel and a second channel. The first channel is connected to the first interface pipe (3) and the second channel is connected to the second interface pipe (4). The drainage pipe (6) is inserted into the second channel through the second interface pipe (4). The cover (2) is provided with a drainage hole connected to the drainage pipe (6). The cover (2) includes an airbag. An inflation tube (5) is provided. One end of the inflation tube (5) is connected to the airbag. A control valve (9) is provided on the inflation tube (5). A pressure measuring device is also provided on the inflation tube (5). The other end of the inflation tube (5) is connected to the air pump. The pressure measuring device includes a second air pressure sensor, a first air pressure sensor is installed inside the airbag, and a second air pressure sensor is installed on the inflation tube (5) at the end near the airbag of the control valve (9). The first control device is electrically connected to the control valve (9), the air pump, the first air pressure sensor, and the second air pressure sensor respectively. It also includes an air pump assessment device for performing an assessment before the hood (2) is placed on the human body. The air pump assessment device includes: The first flow sensor is used to detect the gas flow rate in the end of the inflation tube (5) located near the air bladder at the control valve (9); A timer is used to keep track of the air pump's operating time. The storage module stores the first standard gas pressure change curve, the second standard gas pressure change curve, and the standard gas flow rate change curve. The first acquisition module is used to acquire the target operating power of the air pump during the current anesthesia process; The first alarm and the second alarm, and the first control device are electrically connected to the first flow sensor, the timer, the first acquisition module, the first alarm, the second alarm, and the storage module, respectively. The first control device controls the operation of the first alarm and the second alarm based on the first flow sensor, the timer, the first acquisition module, the first air pressure sensor, the second air pressure sensor, and the storage module, including: Step S1: Place the cover (2) inside the simulated human body. The first control device controls the air pump to work at the target working power to inflate and deflate the airbag, and controls the first flow sensor, timer, first air pressure sensor and second air pressure sensor to work in real time. Step S2: Based on the detection value of the second air pressure sensor, construct a second actual air pressure change curve, with time as the horizontal axis and the detection value of the second air pressure sensor as the vertical axis. Based on the detection value of the first air pressure sensor, a first actual air pressure change curve is constructed, with time as the horizontal axis and the detection value of the first air pressure sensor as the vertical axis. Based on the detection value of the first flow sensor, an actual gas flow rate change curve is constructed, with time as the horizontal axis and the detection value of the first flow sensor as the vertical axis. Step S3: Divide the second actual air pressure change curve into several first segments according to different working processes, and divide the second standard air pressure change curve into several second segments according to different working processes. The first segment and the second segment correspond one-to-one, and obtain the first similarity between the first segment and the corresponding second segment. The actual gas flow rate change curve is divided into several third segments according to different working processes, and the standard gas flow rate change curve is divided into several fourth segments according to different working processes. The third segments and the fourth segments correspond one-to-one, and the second similarity between the third segment and the corresponding fourth segment is obtained. Step S4: Mark the first target line in the first sub-segment. The ordinate of the first target line is the second average standard air pressure obtained from the corresponding second sub-segment. Mark the second target line in the third sub-segment. The ordinate of the second target line is the average standard flow rate obtained from the corresponding fourth sub-segment. Step S5: Obtain a first evaluation value based on the first similarity and the second similarity; when the first evaluation value is less than a first preset value, the first control device controls the first alarm to sound. Step S6: Obtain the third similarity between the first actual air pressure change curve and the corresponding first standard air pressure change curve. When the third similarity is less than the second preset value, the first control device controls the second alarm to sound an alarm. The first evaluation value is obtained based on the first similarity and the second similarity according to the following formula; ； The first evaluation value, Let F be the first similarity between the f-th first sub-segment and its corresponding second sub-segment; F is the total number of first sub-segments; and R is the total number of third sub-segments. The importance of the f-th first sub-segment; Let r be the second similarity between the r-th third sub-segment and the corresponding fourth sub-segment; Let r be the importance of the third sub-segment; , These are the first evaluation weight and the second evaluation weight, respectively. The area above the first target line is enclosed by the longitudinal extension line of the boundary of the f-th first sub-segment and its x-coordinate; The area below the first target line is enclosed by the longitudinal extension line of the boundary of the f-th first sub-segment and its x-coordinate; for The corresponding maximum allowed value; Let be the area of ​​the portion above the second target line enclosed by the longitudinal extension line of the boundary of the r-th third sub-segment and its x-coordinate, and the r-th third sub-segment. Let R be the area of ​​the portion located below the second target line enclosed by the longitudinal extension line of the boundary of the r-th third sub-segment and its x-coordinate, and the r-th third sub-segment. for The corresponding maximum allowed value; is a natural constant with a value of 2.

72.

2. The auxiliary anesthesia system for anesthesiology departments according to claim 1, characterized in that: One end of the control valve (9) is also connected to an auxiliary device (7), which includes a connecting air pipe (71), which is connected to one end of the control valve (9), and an auxiliary air pump (72) is connected to the connecting air pipe (71).

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