WO2021057568A1 - Ph and temperature monitoring system for laryngeal mask - Google Patents

Abstract

Disclosed is a pH and temperature monitoring system for a laryngeal mask, the system comprising a laryngeal mask body (1) and a multifunctional signal processing display (8) which are cooperatively used with the laryngeal mask; and further comprising a laryngeal mask intelligent control system, and a pH display module, a temperature display module, a micro pH sensor probe and a micro temperature sensor probe which are each connected to the laryngeal mask intelligent control system, wherein the laryngeal mask intelligent control system, the pH display module and the temperature display module are all mounted inside the multifunctional signal processing display (8), the micro temperature sensor probe is mounted on the laryngeal mask body (1) on the back side of a mask bag (2), and the micro pH sensor probe is mounted in a linear groove (4) in the back side of the laryngeal mask body (1). The system is simple and practical, can achieve real-time monitoring of temperature and pH at the esophageal entrance of a patient, has high sensitivity, improves timely determination of gastric acid reflux, realizes timely early warning of gastric liquid reflux, reduces the risk of aspiration of the reflux fluid into the airway, and is safe and reliable.

Description

A pH and temperature monitoring system for laryngeal mask Technical field

The invention relates to the field of medical equipment, in particular to a pH and temperature monitoring system for a laryngeal mask.

Background technique

Laryngeal mask, as a medical device for maintaining patients' breathing and ventilation, has the characteristics of non-invasive airway, and is widely used in clinical first aid or resuscitation. The existing first-generation, second-generation and third-generation laryngeal masks are limited to effective artificial or mechanical ventilation, and cannot measure the internal temperature and pH of the larynx cavity while performing normal ventilation.

The relatively constant body temperature is one of the important conditions for maintaining the normal life activities of the human body. For example, when the body temperature is higher than 41 degrees Celsius or lower than 35 degrees Celsius, it will seriously affect the functional activities of various systems (especially the nervous system), and even endanger life. Clinically, checking the patient's body temperature and observing its changes are of great significance for diagnosing diseases or judging the prognosis of certain diseases.

Under normal physiological conditions, the body's acid-base imbalance is not easy to occur. Once the pH of the body fluid is lower than 7.35, it is already acidosis. The early symptoms often manifest as loss of appetite, nausea, vomiting, abdominal pain and other symptoms. Further development may manifest as lethargy. , Irritability, lack of energy. Due to the obvious difference between the pH of the gastric juice and the pH of the mucous membrane of the throat, real-time monitoring of the pH at the entrance of the esophagus can use a sudden change in pH to alert the gastric juice to recurrent behavior. Under normal circumstances, the pH value at the entrance of the esophagus should be around 6.5. When there is gastroesophageal reflux, the stomach contents will reflux to the entrance of the esophagus, and the pH value at the entrance of the esophagus will drop sharply. At present, most laryngeal masks used in patients are equipped with drainage cavities, which reduces the risk of gastric juice reflux into the airway to a certain extent. However, because the entrance of the esophagus cannot be monitored in real time, it is often impossible to detect the occurrence of reflux in time. It was only discovered after the patient had aspirated. And reflux aspiration is a serious complication of general anesthesia with laryngeal mask. Therefore, it is very necessary to develop an integrated intelligent laryngeal mask with the function of monitoring temperature and pH. Through the real-time monitoring of the pH value at the entrance of the esophagus through the laryngeal mask, reflux can be detected in time, treated in time, and prevented from aspiration. of.

technical problem

The purpose of the present invention is to provide a pH and temperature monitoring system for a laryngeal mask to solve the problems raised in the background art.

Technical solutions

In order to achieve the above objectives, the present invention provides the following technical solutions:

A pH and temperature monitoring system for a laryngeal mask includes a laryngeal mask body, a multifunctional signal processing display, and a laryngeal mask intelligent control system, and a pH display module connected to the laryngeal mask intelligent control system. The temperature display module, the miniature pH sensor probe, the miniature temperature sensor probe, the laryngeal mask intelligent control system, the pH display module, and the temperature display module are all installed inside the multifunctional signal processing display, the miniature pH sensor probe and the miniature temperature sensor probe The laryngeal mask body is provided with a ventilation lumen, a signal transmission line lumen, and a drainage lumen. The front end of the laryngeal mask body is provided with a cuff obliquely, and one end of the ventilation lumen is provided with a ventilation tube. The air outlet of the lumen, the air outlet of the ventilation tube is arranged inside the cuff, the back side of the laryngeal mask body is provided with a wired groove, a temperature sensor probe microcavity, and a pH sensor probe is arranged in the linear groove Microcavity and drainage port, one end of the signal transmission line lumen is in communication with the temperature sensor probe microcavity and the pH sensor probe microcavity, the drainage lumen is in communication with the drainage port; the micro pH sensor probe, the micro temperature sensor The probes are respectively installed in the pH sensor probe microcavity and the temperature sensor probe microcavity. The micro pH sensor probe and the micro temperature sensor probe are respectively connected to the multi-function via the pH sensor signal transmission line and the temperature sensor signal transmission line provided in the signal transmission line lumen. The laryngeal mask intelligent control system in the signal processing display.

Preferably, the multifunctional signal processing display is provided with a pH display screen and a temperature display screen, and is respectively connected with the pH display module and the temperature display module.

Preferably, the multifunctional signal processing display is provided with a pH warning light, a temperature warning light, and a sound player, the multifunctional signal processing display is provided with a voice playback module, the pH warning light, the temperature warning light, The voice playing modules are respectively connected to the laryngeal mask intelligent control system, and the sound player is connected to the voice playing module.

Preferably, the pH threshold and temperature threshold displayed by the pH display module and the temperature display module are 0.00-10.00 and 20.0-42.0°C, respectively, the pH threshold accuracy is to two decimal places, and the temperature threshold accuracy is one decimal place.

Preferably, the miniature pH sensor probe and the miniature temperature sensor probe are all made of a flexible protein film, PET film or PI film with a thickness of 40-200 microns as the main supporting material.

Preferably, the rear end of the laryngeal mask body is provided with a connection joint, the connection joint is provided with a drainage hose, a ventilation tube, and a signal transmission line connection joint, and the ventilation tube is in communication with the ventilation lumen; the drainage hose One end is connected to the drainage tube cavity, and the other end is connected to the drainage device; the multifunctional signal processing display is provided with a signal transmission bus, and one end of the signal transmission bus is connected to the laryngeal mask intelligent control system of the multifunctional signal processing display, The other end is connected to the signal transmission line connection joint, and is respectively connected with the pH sensor signal transmission line and the temperature sensor signal transmission line in the signal transmission line lumen through the signal transmission line connection joint.

Preferably, the cuff is a ring-shaped sac-shaped structure, and the air outlet of the ventilation lumen is arranged at the inner middle and upper part of the cuff of the ring-shaped sac-shaped structure.

Preferably, the laryngeal mask body is further provided with an inflation lumen, one end of the inflation lumen is connected in the cuff, and the other end is connected with an inflation valve through an inflation hose.

Preferably, the laryngeal mask body is made of a soft material, and the multifunctional signal processing display is directly embedded on the laryngeal mask body or externally connected to the laryngeal mask body.

Preferably, the linear groove is arranged on the back side of the laryngeal mask body and is aligned with the direction of the laryngeal mask body, the drainage port is arranged in the linear groove at the front end of the laryngeal mask body, and the pH sensor probe microcavity is arranged On the side wall of the head end of the linear groove.

Beneficial effect

The beneficial effects of the present invention are:

The device of the present invention is used in the pH and temperature monitoring system of the laryngeal mask. The intelligent control system of the laryngeal mask, the pH display module and the temperature display module respectively connected with the intelligent control system of the laryngeal mask are arranged in the multifunctional signal processing display; The front end of the mask body is equipped with a pH sensor probe microcavity and a temperature sensor probe microcavity, and are respectively installed with a micro pH sensor probe and a micro temperature sensor probe. The micro pH sensor probe and the micro temperature sensor probe are respectively connected to the intelligent control system of the laryngeal mask. The pH sensor probe and the miniature temperature sensor probe monitor the pH and temperature at the entrance of the patient's esophagus in real time, with high sensitivity, improve the timeliness of gastric acid reflux judgment, realize timely warning of gastric juice reflux, and reduce aspiration of reflux fluid The risk of entering the airway is safe and reliable.

Description of the drawings

Figure 1: Schematic diagram of the system of the present invention.

Figure 2: Schematic diagram of the structure of the present invention.

Figure 3: A top view of the structure of the present invention.

The best mode of the present invention

With reference to Figures 1-3, the specific implementation of the present invention will be described as follows:

As shown in Figure 1-3, a pH and temperature monitoring system for a laryngeal mask includes a laryngeal mask body 1, a multifunctional signal processing display 8, and a laryngeal mask intelligent control system, as well as a laryngeal mask Cover the pH display module, temperature display module, miniature pH sensor probe, and miniature temperature sensor probe connected to the intelligent control system. The laryngeal mask body 1 is made of soft materials, and the multifunctional signal processing display 8 is directly embedded on the laryngeal mask body 1 or externally connected to the laryngeal mask body 1 for installation. The laryngeal mask intelligent control system, pH display module, and temperature display module are all installed inside the multifunctional signal processing display 8. The miniature pH sensor probe and the miniature temperature sensor probe are all made of flexible protein film, PET film or PI with a thickness of 40-200 microns. The membrane is made of the main body supporting material and is arranged on the laryngeal mask body 1.

The pH threshold and temperature threshold displayed by the pH display module and the temperature display module are respectively 0.00-10.00 and 20.0-42.0°C, the accuracy of the pH threshold is to two decimal places, and the accuracy of the temperature threshold is to one decimal place. The multifunctional signal processing display 8 is provided with a pH display screen and a temperature display screen, and the pH display screen and the temperature display screen are respectively connected to the pH display module and the temperature display module. The multifunctional signal processing display 8 is equipped with a pH warning light, a temperature warning light, and a sound player. The multifunctional signal processing display 8 is equipped with a voice playback module. The pH warning light, temperature warning light, and voice playback module are respectively connected to the throat On the cover intelligent control system, the sound player is connected to the voice playback module. When the data detected by the micro pH sensor probe and the micro temperature sensor probe exceeds the preset value range, the intelligent control system of the laryngeal mask will use the pH warning light or temperature warning light, and the voice playback module to perform light warning and voice alarm, which is convenient for medical staff Deal with it in a timely manner.

The laryngeal mask body 1 is provided with a ventilation lumen 3, a signal transmission line lumen 5, and a drainage lumen 6. One end of the ventilation lumen 3 is provided with a ventilation lumen outlet 31, and the front end of the laryngeal mask body 1 is provided with a mask 2 obliquely. The cuff 2 has a ring-shaped sac-like structure, and the air outlet 31 of the ventilating lumen is arranged at the inner middle and upper part of the cuff 2 of the ring-shaped sac-like structure.

The back side of the laryngeal mask body 1 is provided with a wired groove 4 and a temperature sensor probe microcavity 51. The linear groove 4 is provided with a pH sensor probe microcavity 52 and a drainage port 61. The linear groove 4 is arranged on the laryngeal mask. The back side of the body 1 is consistent with the direction of the laryngeal mask body 1, the drainage port 61 is arranged in the linear groove 4 at the front end of the laryngeal mask body 1, and the pH sensor probe microcavity 52 is arranged on the side wall of the head end of the linear groove 4.

One end of the signal transmission line lumen 5 is connected with the temperature sensor probe microcavity 51 and the pH sensor probe microcavity 52, and the drainage lumen 6 is connected with the drainage port 61; the miniature pH sensor probe and the miniature temperature sensor probe are respectively installed in the pH sensor probe Microcavity 52, temperature sensor probe In the microcavity 51, the micro pH sensor probe and the micro temperature sensor probe are respectively connected to the multifunctional signal processing display 8 through the pH sensor signal transmission line and the temperature sensor signal transmission line provided in the signal transmission line lumen 5. Laryngeal mask intelligent control system.

The laryngeal mask body 1 is also provided with an inflation lumen 7. One end of the inflation lumen 7 is connected to the cuff 2, and the other end is connected to an inflation valve 72 through an inflation hose 71.

The rear end of the laryngeal mask body 1 is provided with a connection joint 9, and the connection joint 9 is provided with a drainage hose 91, a ventilation tube 92, and a signal transmission line connection joint. The ventilation tube 92 is connected to the ventilation lumen 3; one end of the drainage hose 91 is connected to the drainage The lumen 6 is connected, and the other end is connected to the drainage device; the multifunctional signal processing display 8 is provided with a signal transmission bus 53. One end of the signal transmission bus 53 is connected to the laryngeal mask intelligent control system of the multifunctional signal processing display 8, and the other end is connected to the laryngeal mask intelligent control system of the multifunctional signal processing display 8. It is connected to the signal transmission line connection joint, and is respectively connected with the pH sensor signal transmission line and the temperature sensor signal transmission line in the signal transmission line lumen 5 through the signal transmission line connection joint.

The device of the present invention is used in the pH and temperature monitoring system of the laryngeal mask. It is simple and practical. The intelligent control system of the laryngeal mask and the pH display module and the temperature display module respectively connected with the intelligent control system of the laryngeal mask are arranged in the multifunctional signal processing display 8. ; By setting the pH sensor probe microcavity 52 and the temperature sensor probe microcavity 51 at the front end of the laryngeal mask body, and respectively install the micro pH sensor probe, the micro temperature sensor probe, the micro pH sensor probe, the micro temperature sensor probe and the laryngeal mask intelligent The control system is connected, using the micro pH sensor probe and the micro temperature sensor probe to monitor the pH and temperature at the entrance of the patient’s esophagus in real time, with high sensitivity, improving the timeliness of gastric acid reflux judgment, and realizing timely warning of gastric juice reflux. The risk of reflux fluid being sucked into the airway by mistake is reduced, and it is safe and reliable.

The invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the invention is not limited by the above methods, as long as the method concept and technical solution of the invention are adopted to make such insubstantial improvements, or the invention is not improved. If the concept and technical solution of is directly applied to other occasions, they all fall within the protection scope of the present invention.

Claims (10)

A pH and temperature monitoring system for a laryngeal mask includes a laryngeal mask body (1) and a multifunctional signal processing display (8) used in conjunction with the laryngeal mask. It is characterized in that it also includes a laryngeal mask intelligent control system, and a laryngeal mask The pH display module, temperature display module, miniature pH sensor probe, and miniature temperature sensor probe connected to the intelligent control system of the cover, the intelligent control system, pH display module and temperature display module of the laryngeal mask are all installed in the multifunctional signal processing display (8) Inside, the miniature pH sensor probe and the miniature temperature sensor probe are arranged on the laryngeal mask body (1); the laryngeal mask body (1) is provided with a ventilation lumen (3), a signal transmission line lumen (5), and drainage A lumen (6), the front end of the laryngeal mask body (1) is obliquely provided with a cuff (2), one end of the ventilation lumen (3) is provided with a ventilation lumen outlet (31), and the ventilation lumen The air outlet (31) is arranged on the inner side of the cuff (2), and a wired groove (4) and a temperature sensor probe microcavity (51) are arranged on the back of the laryngeal mask body (1). The linear concave The tank (4) is provided with a pH sensor probe microcavity (52) and a drainage port (61). One end of the signal transmission line lumen (5) is connected to the temperature sensor probe microcavity (51) and the pH sensor probe microcavity (52). Are connected, the drainage tube cavity (6) and the drainage port (61) are connected; the miniature pH sensor probe and the miniature temperature sensor probe are respectively installed in the pH sensor probe microcavity (52) and the temperature sensor probe microcavity ( In 51), the miniature pH sensor probe and the miniature temperature sensor probe are respectively connected to the laryngeal mask in the multifunctional signal processing display (8) through the pH sensor signal transmission line and the temperature sensor signal transmission line provided in the signal transmission line lumen (5). On the intelligent control system. The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the multifunctional signal processing display (8) is provided with a pH display screen and a temperature display screen, which are respectively connected with the pH display module , The temperature display module is connected. The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the multifunctional signal processing display (8) is provided with a pH warning light, a temperature warning light, and a sound player, so The multifunctional signal processing display (8) is provided with a voice playback module, the pH warning light, temperature warning light, and voice playback module are respectively connected to the laryngeal mask intelligent control system, and the sound player is connected to the voice playback module . The pH and temperature monitoring system for a laryngeal mask according to claim 1 or 2, wherein the pH threshold and temperature threshold displayed by the pH display module and the temperature display module are 0.00-10.00 and 20.0-42.0, respectively ℃, pH threshold accuracy to two decimal places, and temperature threshold accuracy to one decimal place. The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the miniature pH sensor probe and the miniature temperature sensor probe are all made of a flexible protein film and a PET film with a thickness of 40-200 microns. Or the PI film is made of the main support material. The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the rear end of the laryngeal mask body (1) is provided with a connecting joint (9), and the connecting joint (9) is provided with There is a drainage hose (91), a ventilation tube (92), and a signal transmission line connection joint. The ventilation tube (92) is in communication with the ventilation lumen (3); one end of the drainage hose (91) is connected to the drainage lumen ( 6) Connected, the other end is connected to the drainage device; the multifunctional signal processing display (8) is provided with a signal transmission bus (53), and one end of the signal transmission bus (53) is connected to the multifunctional signal processing display (8) ) Of the laryngeal mask intelligent control system, the other end is connected to the signal transmission line connection joint, and the signal transmission line connection joint is respectively connected with the pH sensor signal transmission line and the temperature sensor signal transmission line in the signal transmission line lumen (5). The pH and temperature monitoring system for a laryngeal mask according to claim 1, characterized in that the cuff (2) has a ring-shaped sac-like structure, and the air outlet (31) of the ventilation tube cavity is provided in the ring-shaped sac. The inside, middle and upper part of the cuff (2) with a shaped structure. The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the laryngeal mask body (1) is also provided with an inflatable lumen (7), the inflatable lumen (7) One end is connected to the cuff (2), and the other end is connected to an inflation valve (72) through an inflation hose (71). The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the laryngeal mask body (1) is made of soft material, and the multifunctional signal processing display (8) It is set up by directly embedding on the laryngeal mask body (1) or externally connecting with the laryngeal mask body (1). The pH and temperature monitoring system for a laryngeal mask according to claim 1, wherein the linear groove (4) is arranged on the back of the laryngeal mask body (1) and is connected to the laryngeal mask body (1). ) In the same direction, the drainage port (61) is arranged in the linear groove (4) at the front end of the laryngeal mask body (1), and the pH sensor probe microcavity (52) is arranged at the head end of the linear groove (4) On the side wall.