A pH and temperature monitoring system for laryngeal mask
By integrating pH and temperature monitoring systems on the laryngeal mask, using micro sensor probes and display modules to monitor the pH and alkalinity and temperature at the entrance of the esophageal tube in real time, the problem that existing laryngeal masks cannot detect gastric juice reflux in time is solved, and the risk of aspiration is reduced. Improved security.
Patent Information
- Application Number
- CN201910909316.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-09-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2039-09-25
AI Technical Summary
The existing laryngeal mask cannot monitor the temperature and pH inside the laryngeal cavity in real time while performing normal ventilation, resulting in the inability to detect gastric juice reflux in time, increasing the risk of aspiration.
A pH and temperature monitoring system including laryngeal mask body, multi-function signal processing display, laryngeal mask intelligent control system, pH display module, temperature display module, micro pH sensor probe and micro temperature sensor probe were designed to monitor real-time through these components. The pH and alkalinity and temperature at the entrance of the esophageal tube achieve a timely warning of gastric juice reflux.
It improves the timeliness of gastric acid reflux judgment, reduces the risk of reflux fluid being misaccified into the airway, and ensures safety and reliability of use.
Smart Images
Figure CN110478585B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical devices, in particular to a pH and temperature monitoring system for a laryngeal mask. Background Art
[0002] As a medical device for maintaining the patient's breathing and ventilation, the laryngeal mask has the characteristics of non-invasive airway and is widely used in clinical emergency 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 temperature and pH inside the laryngeal cavity while performing normal ventilation.
[0003] The relative constancy of human body temperature is one of the important conditions for maintaining normal life activities of the human body. If 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.
[0004] Under normal physiological conditions, acid-base imbalance in the human body is not easy to occur. Once the pH value of body fluids is lower than 7.35, it is already acidosis. In the early stage, it is often manifested as loss of appetite, nausea, vomiting, abdominal pain and other symptoms. Further development may manifest as drowsiness, irritability, and lack of energy. Since the pH of gastric juice is significantly different from that of pharyngeal mucosal fluid, real-time monitoring of the pH at the entrance of the esophagus can use the sudden change of pH to warn of gastric reflux behavior. Under normal circumstances, the pH value at the entrance of the esophagus should be around 6.5. When there is gastroesophageal reflux, the gastric contents 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 for patients are equipped with drainage holes, which reduce 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, the occurrence of reflux cannot be detected in time, and it is often discovered after the patient has aspiration. Reflux aspiration is a serious complication of laryngeal mask anesthesia. Therefore, it is very necessary to develop an integrated intelligent laryngeal mask with the function of monitoring temperature and pH. Through real-time monitoring of the pH value at the entrance of the esophagus, reflux can be detected and treated in time to prevent the occurrence of aspiration. Summary of the invention
[0005] The object of the present invention is to provide a pH and temperature monitoring system for a laryngeal mask to solve the problems raised in the above background technology.
[0006] In order to achieve the above object, the present invention provides the following technical solutions:
[0007] A pH and temperature monitoring system for a laryngeal mask comprises a laryngeal mask body and a multifunctional signal processing display used in conjunction with the laryngeal mask body, and also comprises 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 respectively 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 installed inside the multifunctional signal processing display, and the micro pH sensor probe and the micro temperature sensor probe are arranged on the laryngeal mask body; a ventilation tube cavity, a signal transmission line tube cavity, and a drainage tube cavity are arranged inside the laryngeal mask body, a mask bag is obliquely arranged at the front end of the laryngeal mask body, a ventilation tube cavity air outlet is arranged at one end of the ventilation tube cavity, and the ventilation tube cavity air outlet is arranged at one end of the ventilation tube cavity. The cavity air outlet is arranged on the inner side of the mask bag, and a linear groove and a temperature sensor probe microcavity are arranged on the back side of the laryngeal mask body. A pH sensor probe microcavity and a drainage port are arranged in the linear groove. One end of the signal transmission line lumen is connected with the temperature sensor probe microcavity and the pH sensor probe microcavity, and the drainage lumen is connected with the drainage port; the micro pH sensor probe and the micro temperature sensor probe are respectively installed in the pH sensor probe microcavity and the temperature sensor probe microcavity, and the micro pH sensor probe and the micro temperature sensor probe are respectively connected to the laryngeal mask intelligent control system in the multi-functional signal processing display through the pH sensor signal transmission line and the temperature sensor signal transmission line arranged in the signal transmission line lumen.
[0008] Preferably, the multifunctional signal processing display is provided with a pH display screen and a temperature display screen, and are respectively connected to the pH display module and the temperature display module.
[0009] Preferably, the multifunctional signal processing display is provided with a pH warning light, a temperature warning light, and a sound player, and a voice playback module is provided inside the multifunctional signal processing display. The pH warning light, the temperature warning light, and the voice playback module are respectively connected to the laryngeal mask intelligent control system, and the sound player is connected to the voice playback module.
[0010] 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 has an accuracy of two decimal places, and the temperature threshold has an accuracy of one decimal place.
[0011] Preferably, the micro pH sensor probe and the micro temperature sensor probe are both made of a flexible protein film, PET film or PI film with a thickness of 40-200 microns as the main supporting material.
[0012] Preferably, a connecting joint is provided at the rear end of the laryngeal mask body, and a drainage hose, a ventilation tube, and a signal transmission line connecting joint are provided on the connecting joint, and the ventilation tube is connected to the ventilation tube cavity; one end of the drainage hose is connected to the drainage tube cavity, and the other end is connected to the drainage device; a signal transmission bus is provided on the multifunctional signal processing display, one end of the signal transmission bus is connected to the laryngeal mask intelligent control system of the multifunctional signal processing display, and the other end is connected to the signal transmission line connecting joint, and is respectively connected to the pH sensor signal transmission line and the temperature sensor signal transmission line in the signal transmission line cavity through the signal transmission line connecting joint.
[0013] Preferably, the cuff is an annular sac-like structure, and the ventilation tube cavity air outlet is arranged at the upper middle part of the inner side of the cuff of the annular sac-like structure.
[0014] Preferably, an inflation lumen is further provided in the laryngeal mask body, one end of the inflation lumen is connected to the mask bag, and the other end is connected to the inflation valve through an inflation hose.
[0015] Preferably, the laryngeal mask body is made of soft material, and the multifunctional signal processing display is provided in a manner of being directly embedded in the laryngeal mask body or being externally connected to the laryngeal mask body.
[0016] Preferably, the linear groove is arranged on the back side of the laryngeal mask body and is consistent 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.
[0017] The beneficial effects of the present invention are:
[0018] The device of the present invention is used for the pH and temperature monitoring system of a laryngeal mask. The device arranges a laryngeal mask intelligent control system in a multifunctional signal processing display, and a pH display module and a temperature display module respectively connected to the laryngeal mask intelligent control system; a pH sensor probe microcavity and a temperature sensor probe microcavity are arranged at the front end of a laryngeal mask body, and a micro pH sensor probe and a micro temperature sensor probe are respectively installed, and the micro pH sensor probe and the micro temperature sensor probe are respectively connected to the laryngeal mask intelligent control system. The micro pH sensor probe and the micro temperature sensor probe are used to monitor the pH and temperature at the entrance of the esophagus of the patient in real time, and the device has high sensitivity, improves the timeliness of gastric acid reflux judgment, realizes timely warning of gastric juice reflux behavior, reduces the risk of reflux fluid being accidentally aspirated into the airway, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 : Schematic diagram of the system of the present invention;
[0020] Figure 2 : Schematic diagram of the structure of the present invention;
[0021] Figure 3 : A top view of the structure of the present invention. DETAILED DESCRIPTION
[0022] Combined with Figure 1-3 , the specific implementation mode of the present invention is described as follows:
[0023] like Figure 1-3 As shown, 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 body, and also includes 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 respectively connected to the laryngeal mask intelligent control system. The laryngeal mask body 1 is made of soft material, and the multifunctional signal processing display 8 is directly embedded in the laryngeal mask body 1 or externally connected to the laryngeal mask body 1. The laryngeal mask intelligent control system, the pH display module, and the temperature display module are all installed inside the multifunctional signal processing display 8, and the micro pH sensor probe and the micro temperature sensor probe are made of a flexible protein film, a PET film, or a PI film with a thickness of 40-200 microns as the main supporting material, and are arranged on the laryngeal mask body 1.
[0024] 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. The pH threshold accuracy is to two decimal places, and the temperature threshold accuracy 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 connected to the pH display module and the temperature display module respectively. The multifunctional signal processing display 8 is provided with a pH warning light, a temperature warning light, and a sound player. The multifunctional signal processing display 8 is provided with a voice playback module. The pH warning light, the temperature warning light, and the voice playback module are respectively connected to the laryngeal mask intelligent control system, and 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 numerical range, the laryngeal mask intelligent control system uses the pH warning light or the temperature warning light, and the voice playback module to issue a light warning and a voice alarm, so that medical staff can handle it in time.
[0025] A ventilation lumen 3, a signal transmission line lumen 5, and a drainage lumen 6 are provided in the laryngeal mask body 1. A ventilation lumen air outlet 31 is provided at one end of the ventilation lumen 3. A mask bag 2 is obliquely provided at the front end of the laryngeal mask body 1. The mask bag 2 is an annular sac structure, and the ventilation lumen air outlet 31 is provided at the upper middle part of the inner side of the mask bag 2 of the annular sac structure.
[0026] A linear groove 4 and a temperature sensor probe microcavity 51 are provided on the back side of the laryngeal mask body 1, a pH sensor probe microcavity 52 and a drainage port 61 are provided in the linear groove 4, the linear groove 4 is provided on the back side of the laryngeal mask body 1 and is consistent with the direction of the laryngeal mask body 1, the drainage port 61 is provided in the linear groove 4 at the front end of the laryngeal mask body 1, and the pH sensor probe microcavity 52 is provided on the side wall of the head end of the linear groove 4.
[0027] 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, and the drainage lumen 6 is connected to the drainage port 61; the micro pH sensor probe and the micro temperature sensor probe are respectively installed in the pH sensor probe microcavity 52 and the temperature sensor probe microcavity 51, and the micro pH sensor probe and the micro temperature sensor probe are respectively connected to the laryngeal mask intelligent control system in the multi-functional signal processing display 8 through the pH sensor signal transmission line and the temperature sensor signal transmission line arranged in the signal transmission line lumen 5.
[0028] An inflation lumen 7 is also provided in the laryngeal mask body 1 , one end of the inflation lumen 7 is connected to the mask bag 2 , and the other end is connected to an inflation valve 72 via an inflation hose 71 .
[0029] A connecting joint 9 is provided at the rear end of the laryngeal mask body 1, and a drainage hose 91, a ventilation tube 92, and a signal transmission line connecting joint are provided on the connecting joint 9, and the ventilation tube 92 is connected to the ventilation tube cavity 3; one end of the drainage hose 91 is connected to the drainage tube cavity 6, and the other end is connected to the drainage device; a signal transmission bus 53 is provided on the multifunctional signal processing display 8, 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 signal transmission line connecting joint, and is respectively connected to the pH sensor signal transmission line and the temperature sensor signal transmission line in the signal transmission line cavity 5 through the signal transmission line connecting joint.
[0030] The device of the present invention is used for the pH and temperature monitoring system of the laryngeal mask, which is simple and practical. The laryngeal mask intelligent control system and the pH display module and the temperature display module respectively connected to the laryngeal mask intelligent control system are arranged in the multifunctional signal processing display 8; the pH sensor probe microcavity 52 and the temperature sensor probe microcavity 51 are arranged at the front end of the laryngeal mask body, and micro pH sensor probes and micro temperature sensor probes are respectively installed, and the micro pH sensor probes and micro temperature sensor probes are respectively connected to the laryngeal mask intelligent control system. The micro pH sensor probes and micro temperature sensor probes are used to monitor the pH and temperature at the entrance of the esophagus of the patient in real time, and the device has high sensitivity, improves the timeliness of gastric acid reflux judgment, realizes timely warning of gastric fluid reflux behavior, reduces the risk of accidental aspiration of reflux fluid into the airway, and is safe and reliable.
[0031] The above is an exemplary description of the invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.
Claims
1. A pH and temperature monitoring system for a laryngeal mask, comprising a laryngeal mask body (1) and a multifunctional signal processing display (8) used in conjunction with the laryngeal mask, characterized in that: The invention also comprises 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 respectively connected to the laryngeal mask intelligent control system. The laryngeal mask intelligent control system, the pH display module, and the temperature display module are all installed inside a multifunctional signal processing display (8). The micro pH sensor probe and the micro temperature sensor probe are arranged on a laryngeal mask body (1). The laryngeal mask body (1) is provided with a ventilation tube cavity (3), a signal transmission line tube cavity (5), and a drainage tube cavity (6). The front end of the body (1) is provided with a mask bag (2) at an angle, one end of the ventilation tube cavity (3) is provided with a ventilation tube cavity air outlet (31), and the ventilation tube cavity air outlet (31) is arranged on the inner side of the mask bag (2); a linear groove (4) and a temperature sensor probe microcavity (51) are arranged on the back side of the laryngeal mask body (1), and the temperature sensor probe microcavity (51) is located outside the linear groove (4); a pH sensor probe microcavity (52) and a drainage port (61) are arranged in the linear groove (4); the signal transmission line cavity (5 ) one end is connected to the temperature sensor probe microcavity (51) and the pH sensor probe microcavity (52), and the drainage tube cavity (6) is connected to the drainage port (61); the micro pH sensor probe and the micro temperature sensor probe are respectively installed in the pH sensor probe microcavity (52) and the temperature sensor probe microcavity (51), and the micro pH sensor probe and the micro temperature sensor probe are respectively connected to the multifunctional signal processing unit via the pH sensor signal transmission line and the temperature sensor signal transmission line provided in the signal transmission line tube cavity (5). The laryngeal mask intelligent control system is arranged on the laryngeal mask body (1) in the display (8); the linear groove (4) is arranged on the back side of the laryngeal mask body (1) and is in the same direction as 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); the pH sensor probe microcavity (52) is arranged on the side wall of the head end of the linear groove (4); the laryngeal mask body (1) is also provided with an inflation lumen (7), one end of the inflation lumen (7) is connected to the mask bag (2), and the other end is connected to the inflation valve (72) through an inflation hose (71).
2. A pH and temperature monitoring system for a laryngeal mask according to claim 1, characterized in that: The multifunctional signal processing display (8) is provided with a pH display screen and a temperature display screen, and is connected to a pH display module and a temperature display module respectively.
3. A pH and temperature monitoring system for laryngeal mask according to claim 1, characterized in that: The multifunctional signal processing display (8) is provided with a pH warning light, a temperature warning light, and a sound player, and a voice playing module is provided inside the multifunctional signal processing display (8). The pH warning light, the temperature warning light, and the voice playing module are respectively connected to the laryngeal mask intelligent control system, and the sound player is connected to the voice playing module.
4. A pH and temperature monitoring system for laryngeal mask according to claim 1 or 2, characterized in that: 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 has an accuracy of two decimal places, and the temperature threshold has an accuracy of one decimal place.
5. A pH and temperature monitoring system for laryngeal mask according to claim 1, characterized in that: The micro pH sensor probe and the micro temperature sensor probe are both made of a flexible protein film, PET film or PI film with a thickness of 40-200 microns as the main supporting material.
6. A pH and temperature monitoring system for laryngeal mask according to claim 1, characterized in that: 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, and the ventilation tube (92) is connected to the ventilation tube cavity (3); one end of the drainage hose (91) is connected to the drainage tube cavity (6), 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 signal transmission line connection joint, and is respectively connected to the pH sensor signal transmission line and the temperature sensor signal transmission line in the signal transmission line cavity (5) through the signal transmission line connection joint.
7. A pH and temperature monitoring system for laryngeal mask according to claim 1, characterized in that: The mask bag (2) is an annular bag-like structure, and the ventilation tube cavity air outlet (31) is arranged at the middle and upper part of the inner side of the mask bag (2) of the annular bag-like structure.
8. A pH and temperature monitoring system for laryngeal mask according to claim 1, characterized in that: The laryngeal mask body (1) is made of soft material, and the multifunctional signal processing display (8) is arranged in a manner of being directly embedded in the laryngeal mask body (1) or being externally connected to the laryngeal mask body (1).