Tracheal tube with automatic feedback of compression deformation and monitoring and early warning device thereof

Abstract

This utility model belongs to the field of medical devices and discloses an endotracheal tube with automatic feedback of pressure deformation and its monitoring and early warning device, including a cannula with openings at both ends; the cannula is made of elastic material; a reinforcing layer made of metal wire is embedded in the wall of the cannula; the reinforcing layer includes multiple wire loops and multiple wire strips, the wire loops are all placed coaxially with the cannula, the multiple wire loops are arranged along the axial direction of the cannula, the multiple wire strips are all placed coaxially with the cannula, and the multiple wire strips are evenly distributed in a ring around the central axis of the cannula, and each wire strip is fixed to each wire loop in sequence; a monitoring sensor is installed at each intersection node of the wire strip and the wire loop, and the monitoring sensor is used to monitor the pressure deformation signal of the cannula; the monitoring sensor includes a position sensor or a pressure sensor; it solves the problem in the prior art that the endotracheal tube lacks real-time deformation monitoring means, resulting in difficulty in timely detection of collapse.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to a tracheal tube with automatic feedback under pressure deformation and its monitoring and early warning device. Background Technology

[0002] With the continuous development of technology, endotracheal tubes are essential medical devices for maintaining airway patency in clinical anesthesia, emergency care, and intensive care. They are inserted into the trachea through the mouth or nose to ensure an open airway. However, in actual use, patients may unconsciously bite down due to incomplete anesthesia, pain, or agitation, causing the endotracheal tube to be compressed, deformed, or even completely blocked.

[0003] Current endotracheal tubes are typically made of polymer materials, which, while possessing some compressive strength, can still collapse under sustained biting force, thus affecting ventilation and leading to serious consequences such as hypoxia and carbon dioxide accumulation in patients. Since the collapsed area of ​​the endotracheal tube is usually located inside the patient's mouth, medical staff cannot easily detect tube deformation in real time through external observation alone. They often rely on indirect indicators such as decreased blood oxygen saturation, abnormally high airway pressure, or changes in breath sounds, which may delay optimal treatment. Furthermore, repeated tube withdrawal for examination not only increases patient discomfort and the risk of infection but may also cause airway damage due to repeated intubation. Therefore, current technology suffers from a lack of real-time deformation monitoring methods for endotracheal tubes, making it difficult to detect collapse in a timely manner. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an endotracheal tube with automatic feedback on pressure deformation and its monitoring and early warning device, which solves the problem that existing technologies lack real-time deformation monitoring methods for endotracheal tubes, making it difficult to detect dents in a timely manner.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An endotracheal tube with automatic feedback under pressure deformation, comprising a cannula with openings at both ends;

[0007] The cannula is made of an elastic material;

[0008] The cannula has a reinforcing layer made of metal wire embedded in its wall;

[0009] The reinforcing layer includes multiple wire rings and multiple wire strips. The wire rings are all placed coaxially with the cannula. The multiple wire rings are arranged along the axial direction of the cannula. The multiple wire strips are all placed coaxially with the cannula. The multiple wire strips are evenly distributed in a ring around the central axis of the cannula. Each wire strip is fixed to each wire ring in turn.

[0010] Monitoring sensors are installed at each intersection of the wire and the wire loop. The monitoring sensors are used to monitor the pressure deformation signal of the cannula.

[0011] The monitoring sensors include any one of position sensors, pressure sensors, or deformation sensors;

[0012] An air bladder is fixedly fitted at one end of the intubation tube. A connecting tube is embedded in the wall of the intubation tube. One end of the connecting tube is connected to the inside of the air bladder. The other end of the connecting tube extends to the end of the intubation tube away from the air bladder and passes through the peripheral wall of the intubation tube to the outside of the intubation tube. The end of the connecting tube away from the air bladder is used to connect to the air supply equipment.

[0013] A monitoring and early warning device for endotracheal tubes, used in conjunction with endotracheal tubes capable of monitoring pressure deformation, includes a data acquisition unit, a communication module, a host, an early warning device, and a power supply module;

[0014] The signal receiving end of the data acquisition unit and the signal transmitting end of each monitoring sensor are all connected via a communication module;

[0015] The signal transmitting end of the data acquisition unit and the signal receiving end of the host are connected via a communication module;

[0016] The host unit integrates a processing module and a control module;

[0017] The processing module is used to process and analyze the signals received by the host.

[0018] The control module controls the activation or deactivation of the warning device based on the processing and analysis results from the processing module.

[0019] The signal receiver of the warning device and the signal transmitter of the host are connected via a communication module;

[0020] The power input terminals of the data acquisition unit, communication module, host, and early warning device are all electrically connected to the power output terminal of the power supply module;

[0021] The host computer is equipped with a monitor;

[0022] Warning devices include buzzers or warning lights;

[0023] The communication module includes a wireless communication module and / or a wired communication module;

[0024] The wireless communication module includes at least one of the following: ZigBee circuit, WIFI circuit, 4G circuit, 5G circuit, NFC circuit, Bluetooth circuit, and RFID circuit.

[0025] The beneficial effects of this utility model are:

[0026] 1. By setting up the wire rings and wire strips, local pressure can be effectively dispersed, reducing the possibility of collapse of the endotracheal tube lumen; at the same time, the monitoring sensor at the intersection can detect the pressure deformation of the tube wall in real time, and realize automatic feedback on the collapse and blockage of the endotracheal tube in the patient's mouth.

[0027] 2. The data acquisition device collects data from each monitoring sensor and transmits it to the host computer via the communication module. The host computer analyzes and processes the received monitoring information. When a crushing occurs, the control device issues an early warning signal. Through the monitored data, medical staff can accurately determine the specific location and degree of the bite, and provide feedback on the crushing and blockage of the endotracheal tube in the patient's mouth, so that medical staff can monitor whether the endotracheal tube has been crushed in real time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the tracheal tube and monitoring and early warning device of this utility model;

[0030] Figure 2 This is a partial structural diagram of the filament and monitoring sensor of this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] This combination Figures 1 to 2This document describes an embodiment of an endotracheal tube with automatic feedback under pressure deformation and its monitoring and early warning device. Specifically, the endotracheal tube capable of monitoring pressure deformation is constructed as a split structure, comprising components such as a tube 100, a wire ring 201, a wire strip 202, a monitoring sensor 300, a data acquisition unit 500, a communication module, a main unit 600, and an early warning device 700. When a patient accidentally bites the endotracheal tube, the wire ring 201 and the wire strip 202 can effectively disperse local pressure, reducing the possibility of collapse of the tube lumen. Simultaneously, the monitoring sensor 300 at the intersection can detect the pressure deformation of the tube wall in real time, and the data acquisition unit 500 collects the signals monitored by each monitoring sensor 300, which are then transmitted to the main unit 600 via the communication module. The main unit 700 analyzes and processes the received monitoring information, and when a collapse is detected, it controls the early warning device 700 to issue an early warning signal. Through the monitored data, medical personnel can accurately determine the specific location and degree of the bite, enabling feedback on the collapse and blockage of the endotracheal tube in the patient's mouth, allowing medical staff to monitor the endotracheal tube for collapse in real time.

[0033] An endotracheal tube with automatic feedback under pressure deformation, comprising a cannula 100 with openings at both ends;

[0034] The cannula 100 is made of an elastic material;

[0035] The cannula 100 has a reinforcing layer made of metal wire embedded in its wall;

[0036] The reinforcing layer includes multiple wire rings 201 and multiple wire strips 202. The wire rings 201 are all placed coaxially with the insertion tube 100 and are arranged along the axial direction of the insertion tube 100. The wire strips 202 are all placed coaxially with the insertion tube 100 and are evenly distributed in a ring around the central axis of the insertion tube 100. Each wire strip 202 is fixed to each wire ring 201 in sequence.

[0037] Monitoring sensors 300 are installed at each intersection of the wire strip 202 and the wire ring 201. The monitoring sensors 300 are used to monitor the pressure deformation signal of the cannula 100.

[0038] When a patient accidentally bites the endotracheal tube, the wire ring 201 and wire strip 202 can effectively disperse local pressure and reduce the possibility of collapse of the intubation tube 100 lumen. At the same time, the monitoring sensor 300 at the intersection can detect the compression deformation of the tube wall in real time. Through the deformation data, medical staff can accurately determine the specific location and degree of the bite, and realize automatic feedback on the biting and blockage of the endotracheal tube in the patient's mouth, so that medical staff can monitor the biting and blockage of the endotracheal tube.

[0039] Preferably, the cannula 100 can be made of rubber or silicone material, and the length of the cannula 100 ranges from 100 to 200 mm;

[0040] Preferably, the metal wire used to form the reinforcing layer can be steel wire.

[0041] The monitoring sensor 300 includes any one of a position sensor, a pressure sensor, or a deformation sensor;

[0042] When the monitoring sensor 300 is a pressure sensor, if one or more pressure sensors suddenly detect a sudden increase in pressure, it indicates that the endotracheal tube at the corresponding part of the pressure sensor is being bitten by the patient. The preferred pressure sensor in this application can be a medical-grade PVDF piezoelectric film sensor, which can effectively enhance the real-time early warning capability of the endotracheal tube for sudden biting through flexible bonding, multi-node arrangement and high-sensitivity signal chain.

[0043] Specifically, the conventional thickness range of medical-grade PVDF piezoelectric film sensors is 0.05–0.2 mm. The medical-grade PVDF piezoelectric film sensors are bonded to the intersection nodes by applying a thin layer of adhesive at the intersection nodes.

[0044] The medical-grade PVDF piezoelectric film sensor can transmit signals to external devices via wired or wireless means. In this application, wireless signal transmission is preferred.

[0045] When the medical-grade PVDF piezoelectric film sensor transmits signals to external devices via a wired connection, the electrodes of the medical-grade PVDF piezoelectric film sensor are connected to the signal receiving end of the external device through silver-plated copper wires with a diameter of 0.08 mm. The silver-plated copper wires are embedded in the inner wall of the cannula 100 and are arranged along the axial direction of the wire strip 202, which can reduce the exposure of the silver-plated copper wires and avoid increasing the wall thickness of the cannula 100.

[0046] When the monitoring sensor 300 is a deformation sensor, a medical-grade metal foil strain gauge type deformation sensor can be selected; specifically, an HBM LY41 strain gauge can be used, and medical epoxy resin can be used to firmly attach it to the intersection of the wire ring 201 and the wire strip 202.

[0047] When the monitoring sensor 300 is a position sensor, if the relative position between the position sensors at any loop 201 of the endotracheal tube 100 changes, it indicates that the endotracheal tube is being bitten or pressed by the patient at that location.

[0048] An airbag 400 is fixedly sleeved on one end of the intubation tube 100. A connecting tube 401 is embedded in the tube wall of the intubation tube 100. One end of the connecting tube 401 is connected to the inside of the airbag 400. The other end of the connecting tube 401 extends to the end of the intubation tube 100 away from the airbag 400 and passes through the peripheral wall of the intubation tube 100 to the outside of the intubation tube 100. The end of the connecting tube 401 away from the airbag 400 is used to connect to the air supply equipment.

[0049] When in use, insert the end of the cuff 400 into the patient's trachea, and inflate the cuff 400 through the connecting tube 401 to fix the endotracheal tube.

[0050] Preferably, the air supply equipment can be an inflatable air bag, an air pump, or other similar equipment.

[0051] A monitoring and early warning device for endotracheal tubes, used in conjunction with endotracheal tubes capable of monitoring pressure deformation, includes a data acquisition unit 500, a communication module, a main unit 600, an early warning device 700, and a power supply module.

[0052] The signal receiving end of the data acquisition unit 500 and the signal transmitting end of each monitoring sensor 300 are all connected through a communication module.

[0053] The signal transmitting end of the data acquisition unit 500 and the signal receiving end of the host 600 are connected via a communication module.

[0054] The host 600 integrates a processing module and a control module;

[0055] The processing module is used to process and analyze the signals received by the host 600;

[0056] The control module controls the early warning device 700 to turn on or off based on the processing and analysis results of the processing module;

[0057] The signal receiver of the warning device 700 and the signal transmitter of the host 600 are connected to each other via a communication module.

[0058] The power input terminals of the data acquisition unit 500, communication module, host 600, and early warning device 700 are all electrically connected to the power output terminal of the power supply module.

[0059] The host 600 is equipped with a display; the display is used to directly show the data changes monitored by the monitoring sensor 300.

[0060] The warning device 700 includes a buzzer or warning light; it is used to alert medical staff that the endotracheal tube has been bitten and collapsed by a patient.

[0061] Preferably, the warning device 700 can be installed on the outer wall of the main unit 600.

[0062] Preferably, the power supply module can be an energy storage component such as a battery.

[0063] The communication module includes a wireless communication module and / or a wired communication module;

[0064] The wireless communication module includes at least one of the following: ZigBee circuit, WIFI circuit, 4G circuit, 5G circuit, NFC circuit, Bluetooth circuit, and RFID circuit.

[0065] Preferably, each monitoring sensor 300 and the data acquisition unit 500 use a wireless communication module for data transmission;

[0066] Preferably, the data acquisition unit 500 is detachably connected to the peripheral wall of the end of the cannula 100 away from the airbag 400.

[0067] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A tracheal tube with automatic feedback under pressure deformation, comprising an intubation tube (100) open at both ends, characterized in that: The cannula (100) is made of an elastic material; The cannula (100) has a reinforcing layer made of metal wire embedded in its wall; The reinforcing layer includes multiple wire rings (201) and multiple wire strips (202). The wire rings (201) are all placed coaxially with the insertion tube (100). The multiple wire rings (201) are arranged along the axial direction of the insertion tube (100). The multiple wire strips (202) are all placed coaxially with the insertion tube (100). The multiple wire strips (202) are evenly distributed in a ring around the central axis of the insertion tube (100). Each wire strip (202) is fixed to each wire ring (201) in sequence. Monitoring sensors (300) are installed at each intersection of the wire strip (202) and the wire ring (201). The monitoring sensors (300) are used to monitor the pressure deformation signal of the cannula (100).

2. The pressure-deformed automatic feedback cuffed endotracheal tube of claim 1, wherein, The monitoring sensor (300) includes any one of a position sensor, a pressure sensor, or a deformation sensor.

3. The pressure-deformed automatic feedback cuffed endotracheal tube of claim 2, wherein, An airbag (400) is fixedly fitted at one end of the intubation tube (100). A connecting tube (401) is embedded in the wall of the intubation tube (100). One end of the connecting tube (401) is connected to the inside of the airbag (400). The other end of the connecting tube (401) extends to the end of the intubation tube (100) away from the airbag (400) and passes through the peripheral wall of the intubation tube (100) to the outside of the intubation tube (100). The end of the connecting tube (401) away from the airbag (400) is used to connect to the air supply equipment.

4. A monitoring and warning device for a tracheal tube, the monitoring and warning device being used in cooperation with the tracheal tube of any one of claims 1 to 3, characterized in that, It includes a data acquisition unit (500), a communication module, a host (600), an early warning device (700), and a power supply module; The signal receiving end of the data acquisition unit (500) and the signal transmitting end of each monitoring sensor (300) are connected through a communication module; The signal transmitting end of the data acquisition unit (500) and the signal receiving end of the host (600) are connected through a communication module; The host (600) integrates a processing module and a control module; The processing module is used to process and analyze the signals received by the host (600); The control module controls the opening or closing of the early warning device (700) based on the processing and analysis results of the processing module; The signal receiver of the warning device (700) and the signal transmitter of the host (600) are connected through a communication module; The power input terminals of the data acquisition unit (500), communication module, host (600), and early warning device (700) are all electrically connected to the power output terminal of the power supply module.

5. The monitoring and warning device of a tracheal tube according to claim 4, wherein, The host (600) is equipped with a monitor.

6. The monitoring and warning device of a tracheal tube according to claim 5, wherein, The warning device (700) includes a buzzer or a warning light.

7. The monitoring and warning device of a tracheal tube according to claim 6, wherein, The communication module includes a wireless communication module and / or a wired communication module.

8. The monitoring and warning device of a tracheal tube according to claim 7, characterized by, The wireless communication module includes at least one of the following: ZigBee circuit, WIFI circuit, 4G circuit, 5G circuit, NFC circuit, Bluetooth circuit, and RFID circuit.

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