Portable esophageal and tracheal fistula prevention device

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a portable esophageal and tracheal fistula prevention device. Comprising a main cannula, a cannula and an air bag which are arranged on the main cannula and communicated with each other, and further comprises a shaping mechanism used for stabilizing the shape of the main cannula; a mounting plate is arranged at the end, away from the sleeve, of the air guide pipe, and an air pump is arranged on the mounting plate; an electric signal sensor is arranged on the electrode patch; and the controller is electrically connected with the air pump and the electric signal sensor. By arranging the micro controller, the electric signal sensor and the micro air pump, when a patient inhales, muscle activity and electromyographic signals are enhanced, the electric signal sensor monitors electromyographic activity and transmits signals to the micro controller, the micro controller controls the micro air pump to carry out air exhaust activity, and otherwise, when the patient exhales, the micro air pump does air exhaust activity. And the micro controller enables the micro air pump to perform air inflation, so that the condition of esophageal and tracheal fistula is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments and equipment, and in particular relates to a portable device for preventing esophageal tracheal fistula. Background Art

[0002] Tracheal intubation is generally to insert a tracheal tube into the patient's airway through the mouth, after which the patient's oropharynx will be occupied. Its main function is to improve airway ventilation. Tracheal intubation is an important means of cardiopulmonary resuscitation for critically ill patients with respiratory dysfunction and a respiratory treatment method. When the patient cannot breathe freely or cannot meet the body's needs when breathing, this method is generally needed to relieve it.

[0003] In frontline clinical work, mechanical ventilation is one of the means of clinical supportive treatment for respiratory failure in critically ill patients. To ensure the patency of the airway, it is necessary to establish an effective connection with the outside world. Among them, endotracheal intubation is a necessary means of mechanical ventilation. One of its complications - esophageal tracheal leakage has always plagued frontline clinical staff, especially because the front end of the trachea is a C-shaped cartilage and the back wall of the trachea is a membrane. During endotracheal intubation, the membrane is relatively thin.

[0004] An air bag is provided at the front end of the endotracheal tube. After the endotracheal tube is inserted into the patient's respiratory tract, the air bag is inflated by injecting air into the air bag to fix the endotracheal tube in the patient's trachea. Due to the immature skills of clinicians or long-term indwelling of the endotracheal tube, the tracheal membrane may be damaged, resulting in infection and perforation, affecting the adjacent esophagus, and causing an inflammatory response in the esophagus due to infection, thereby causing esophageal tracheal fistula. Therefore, we propose a post-endotracheal esophageal tracheal fistula prevention device for the prevention and treatment of post-endotracheal esophageal tracheal fistula in clinical frontline patients. Utility Model Content

[0005] In view of the problem in the prior art that the esophagus causes an inflammatory reaction due to infection and then produces an esophageal tracheal fistula, the utility model provides a device for preventing esophageal tracheal fistula after tracheal intubation. By arranging a controller, an electrical signal sensor and an air pump, when the patient inhales, muscle activity is enhanced, the myoelectric signal is enhanced, the electrical signal sensor monitors the myoelectric activity and transmits the signal to the controller, the controller controls the micro air pump to perform suction activity, conversely, when the patient exhales, the controller makes the air pump perform inflation activity, thereby effectively avoiding the occurrence of esophageal tracheal fistula.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A portable device for preventing esophageal tracheal fistula comprises a main cannula, a sleeve and an air bag arranged on the main cannula, wherein the sleeve and the air bag are in communication, and further comprises:

[0008] A shaping mechanism is disposed between the outer wall of the main cannula and the inner wall of the sleeve and away from one end of the airbag, and the shaping mechanism is used to stabilize the shape of the main cannula;

[0009] An air guide tube is arranged on the sleeve and communicated with the sleeve, a mounting plate is arranged at one end of the air guide tube away from the sleeve, an air pump is arranged on the mounting plate, and the air pump is communicated with the air guide tube;

[0010] An electrode patch is arranged on a mounting plate at a side away from the airway tube, and an electrical signal sensor is arranged on the electrode patch;

[0011] A controller is arranged on the mounting plate, and the controller is electrically connected to the air pump and the electrical signal sensor.

[0012] Furthermore, in the portable esophageal tracheal fistula prevention device, the electrode patch is connected to a mounting plate on a side away from the airway via an elastic band, a signal amplifier is provided inside the electrode patch, and an output end of the signal amplifier is electrically connected to an input end of an electrical signal sensor.

[0013] Furthermore, in the above-mentioned portable esophageal tracheal fistula prevention device, the shaping mechanism includes a guide tube, a shaping wire and a buckle, the guide tube is arranged between the outer wall of the main tube and the inner wall of the sleeve, one end of the shaping wire is inserted into the interior of the guide tube, and the other end of the shaping wire located outside the guide tube is connected to the buckle.

[0014] Furthermore, in the portable esophageal tracheal fistula prevention device, the airway tube is provided with a three-way valve, and an annular tube is provided between one end of the airway tube close to the sleeve and the three-way valve.

[0015] Furthermore, in the portable esophageal tracheal fistula prevention device, a buffer pad is fixedly provided at the bottom of the mounting plate, and the elastic band is fixed to the buffer pad via a fixing block.

[0016] Furthermore, the portable esophageal tracheal fistula prevention device is provided with a tube seat at one end of the main cannula away from the air bag, and one end of the sleeve is connected to the tube seat.

[0017] Furthermore, in the portable esophageal tracheal fistula prevention device, one end of the main cannula away from the tube seat is an inclined surface, and the main cannula is made of plastic.

[0018] Furthermore, in the portable esophageal tracheal fistula prevention device, the outer wall of the sleeve is provided with scale lines.

[0019] Furthermore, in the above-mentioned portable esophageal tracheal fistula prevention device, the signal amplifier is a triode.

[0020] Furthermore, in the portable esophageal tracheal fistula prevention device, the connection between the airbag and the main cannula is sealed.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. The utility model is provided with a microcontroller, an electrical signal sensor and a micro air pump. When the patient inhales, the muscle activity is enhanced, the electromyographic signal is enhanced, the electrical signal sensor monitors the electromyographic activity and transmits the signal to the microcontroller, and the microcontroller controls the micro air pump to perform the pumping activity. When the patient exhales, the muscle activity is weakened, the electromyographic signal is weakened, the electrical signal sensor monitors the electromyographic activity and transmits the signal to the microcontroller, and the microcontroller sends a working instruction to the micro air pump to make the micro air pump perform the inflation activity, thereby reasonably adjusting the pressure of the air bag and effectively avoiding the occurrence of esophageal tracheal fistula, which fully reflects the practicality of the device for preventing esophageal tracheal fistula after tracheal intubation.

[0023] 2. The utility model plasticizes the main cannula through the shaping mechanism and sends the main cannula into the trachea, which can ensure the shape of the main cannula until the air bag enters the glottis. At this time, the buckle is pulled to pull out the shaping wire, thereby improving the speed and accuracy of the intubation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the casing of the utility model;

[0026] Figure 3 It is a schematic diagram of the installation plate of the utility model;

[0027] Figure 4 This utility model Figure 1 The enlarged schematic diagram of part A in the middle;

[0028] 1. Illustrations: 1. Main cannula; 2. Tube seat; 3. Sleeve; 4. Air bag; 5. Air guide tube; 6. Three-way valve; 7. Shaping mechanism; 701. Guide tube; 702. Shaping wire; 703. Buckle; 8. Mounting plate; 9. Micro air pump; 10. Elastic band; 11. Electrode patch; 12. Electrical signal sensor; 13. Signal amplifier; 14. Micro controller; 15. Ring tube; 16. Scale line; 17. Buffer pad. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand and implement the technical solution of the present invention, the present invention is further described below in conjunction with specific embodiments and drawings.

[0030] The utility model provides a portable esophageal tracheal fistula prevention device, which is used to solve the problem of esophageal tracheal fistula caused by inflammatory reaction due to infection in the prior art. Figure 1-4 As shown, it includes a main cannula 1, a sleeve 3 and an airbag 4 arranged on the main cannula 1, the sleeve 3 and the airbag 4 are connected, and also includes: a shaping mechanism 7, which is arranged between the outer wall of the main cannula 1 and the inner wall of the sleeve 3 and away from the end of the airbag 4, and the shaping mechanism 7 is used to stabilize the shape of the main cannula 1; an airway tube 5, which is arranged on the sleeve 3 and connected with the sleeve 3, and the end of the airway tube 5 away from the sleeve 3 is provided with a mounting plate 8, and the mounting plate 8 is provided with an air pump 9, the air pump 9 is a micro air pump, and the micro air pump 9 is a suction dual-purpose pump, and the output end of the micro air pump 9 is connected with the end of the airway tube 5 away from the sleeve 3; an electrode patch 11, which is arranged on the mounting plate 8 away from the side of the airway tube 5, and the electrode patch 11 is provided with an electric signal sensor 12; a controller 14, which is arranged on the mounting plate 8, and the controller 14 is a micro controller, and the input end of the micro air pump 9 and the electric signal sensor 12 is electrically connected with the output end of the micro controller 14. The main cannula 1 is plasticized by the shaping mechanism 7 to stabilize the shape of the main cannula 1. After the front end of the main cannula 1 is aligned with the glottis, the main cannula 1 is gently rotated to be sent into the trachea until the airbag 4 enters the glottis, and the airway tube 5 is detected to be in the trachea and fixed; the airbag 4 is filled with gas through the airway tube 5, and the airbag 4 fixes the tracheal cannula to the patient's trachea, and the electrode patch 11 is attached to the patient's sternum, and the tiny electromyographic activity is measured by the electrical signal sensor 12, and the signal is transmitted to the microcontroller 14. The microcontroller 14 can control the micro air pump 9 to work. When the patient inhales, the lungs expand. If the pressure of the airbag 4 remains unchanged, the main cannula 1 is compressed, which may cause esophageal tracheal fistula for a long time. Therefore, when the patient inhales, the muscle activity is enhanced, the electromyographic signal is enhanced, the electrical signal sensor 12 monitors the electromyographic activity, and transmits the signal to the microcontroller 14, and the microcontroller 14 controls the micro The air pump 9 performs a pumping activity. When the patient exhales, the muscle activity weakens and the electromyographic signal weakens. The electrical signal sensor 12 monitors the electromyographic activity and transmits the signal to the microcontroller 14. The microcontroller 14 issues a working instruction to the micro air pump 9, so that the micro air pump 9 performs an inflation activity, thereby reasonably adjusting the pressure of the air bag 4. By setting the microcontroller, the electrical signal sensor and the micro air pump, when the patient inhales, the muscle activity is enhanced and the electromyographic signal is enhanced. The electrical signal sensor monitors the electromyographic activity and transmits the signal to the microcontroller. The microcontroller controls the micro air pump to perform a pumping activity. When the patient exhales, the muscle activity weakens and the electromyographic signal weakens. The electrical signal sensor monitors the electromyographic activity and transmits the signal to the microcontroller. The microcontroller issues a working instruction to the micro air pump, so that the micro air pump performs an inflation activity, thereby reasonably adjusting the pressure of the air bag and effectively avoiding the occurrence of esophageal tracheal fistula.

[0031] The invention is further described below through specific examples.

[0032] The utility model provides a portable esophageal tracheal fistula prevention device, which is used to solve the problem of esophageal tracheal fistula caused by inflammatory reaction due to infection in the prior art. Figure 1-4 As shown, it includes a main cannula 1, a sleeve 3 and an airbag 4 arranged on the main cannula 1, the sleeve 3 and the airbag 4 are connected, and also includes: a shaping mechanism 7, which is arranged between the outer wall of the main cannula 1 and the inner wall of the sleeve 3 and away from the end of the airbag 4, and the shaping mechanism 7 is used to stabilize the shape of the main cannula 1; an airway tube 5, which is arranged on the sleeve 3 and connected with the sleeve 3, and the end of the airway tube 5 away from the sleeve 3 is provided with a mounting plate 8, and the mounting plate 8 is provided with an air pump 9, the air pump 9 is a micro air pump, and the micro air pump 9 is a suction dual-purpose pump, and the output end of the micro air pump 9 is connected with the end of the airway tube 5 away from the sleeve 3; an electrode patch 11, which is arranged on the mounting plate 8 away from the side of the airway tube 5, and the electrode patch 11 is provided with an electric signal sensor 12; a controller 14, which is arranged on the mounting plate 8, and the input ends of the micro air pump 9 and the electric signal sensor 12 are electrically connected to the output end of the microcontroller 14.

[0033] The main cannula 1 is plasticized by the shaping mechanism 7 to stabilize the shape of the main cannula 1. After the front end of the main cannula 1 is aligned with the glottis, the main cannula 1 is gently rotated to be sent into the trachea until the airbag 4 enters the glottis, and the airway tube 5 is detected to be in the trachea and fixed; the electrode patch 11 is attached to the patient's sternum, and the tiny myoelectric activity is measured by the electrical signal sensor 12, and the signal is transmitted to the microcontroller 14. The microcontroller 14 can control the micro air pump 9 to work. When the patient inhales, the lungs expand. If the pressure of the airbag 4 remains unchanged, the main cannula 1 is compressed, which may cause Esophageal tracheal fistula, therefore, when the patient inhales, muscle activity is enhanced, the electromyographic signal is enhanced, the electrical signal sensor 12 monitors the electromyographic activity, and transmits the signal to the microcontroller 14, the microcontroller 14 controls the micro air pump 9 to perform the suction activity, when the patient exhales, the muscle activity weakens, the electromyographic signal weakens, the electrical signal sensor 12 monitors the electromyographic activity, and transmits the signal to the microcontroller 14, the microcontroller 14 sends a working instruction to the micro air pump 9, so that the micro air pump 9 performs the inflation activity, thereby reasonably adjusting the pressure of the airbag 4 and effectively avoiding the occurrence of esophageal tracheal fistula.

[0034] In a specific embodiment, the electrode patch 11 is connected to the mounting plate 8 on the side away from the airway tube 5 through the elastic band 10, and a signal amplifier 13 is provided in the electrode patch 11, and the output end of the signal amplifier 13 is electrically connected to the input end of the electrical signal sensor 12. The purpose of the signal amplifier 13 is to amplify the weak signal into an electrical signal with a larger amplitude value, and the electrical signal is amplified by the signal amplifier 13 and transmitted to the microcontroller 14, and the microcontroller 14 can control the micro air pump 9 to work.

[0035] In a specific embodiment, the shaping mechanism 7 includes a guide tube 701, a shaping wire 702 and a buckle 703. The guide tube 701 is arranged between the outer wall of the main cannula 1 and the inner wall of the sleeve 3. One end of the shaping wire 702 is inserted into the guide tube 701, and the other end of the shaping wire 702 located outside the guide tube 701 is connected with a buckle 703. More specifically, the working principle and process of the shaping mechanism 7 are as follows: insert the shaping wire 702 into the tube mouth of the guide tube 701, then adjust the shape of the main cannula 1, put the main cannula 1 into the groove of the tongue plate of the laryngoscope with the right hand in a pen-like manner, align the front end of the main cannula 1 with the glottis, gently rotate the main cannula 1 and send it into the trachea until the air bag 4 enters the glottis, and finally pull the buckle 703 to pull out the shaping wire 702.

[0036] In a specific embodiment, the air guide tube 5 is provided with a three-way valve 6, and an annular tube 15 is provided between one end of the air guide tube 5 close to the sleeve 3 and the three-way valve 6. More specifically, the annular tube 15 can make the gas flow more smoothly and avoid the air guide tube 5 from being blocked.

[0037] In a specific embodiment, a buffer pad 17 is fixedly provided at the bottom of the mounting plate 8, and the elastic band 10 is fixed to the buffer pad 17 through a fixing block. More specifically, the buffer pad 17 is an elastic rubber pad, and the buffer pad 17 can reduce the vibration of the micro air pump 9 when it is working. The elastic rubber pad has a certain telescopic and ductile performance, which can play a buffering effect.

[0038] In a specific embodiment, a tube seat 2 is provided at one end of the main cannula 1 away from the air bag 4 , and one end of the sleeve 3 is connected to the tube seat 2 .

[0039] In a specific embodiment, one end of the main cannula 1 away from the tube seat 2 is an inclined surface, and the main cannula 1 is made of plastic. More specifically, the plastic is PVC, and the main component of the PVC tube is polyvinyl chloride, which has excellent heat resistance, toughness and ductility, and not only meets the requirements of material science, but also meets the requirements of biocompatibility, because this type of material has good compatibility with intravenous fluid and blood.

[0040] In a specific embodiment, the outer wall of the sleeve 3 is provided with scale lines 16. More specifically, the scale lines 16 are provided to facilitate medical personnel to control the insertion depth of the main cannula 1.

[0041] In a specific embodiment, the signal amplifier 13 is a triode. More specifically, a triode, whose full name is semiconductor triode, is a semiconductor device that controls current and its function is to amplify a weak signal into an electrical signal with a larger amplitude.

[0042] In a specific embodiment, the connection between the airbag 4 and the main cannula 1 is sealed. More specifically, a tracheal joint sealing ring is provided at the connection between the airbag 4 and the main cannula 1 to prevent the airbag 4 from leaking.

[0043] Working principle: When the device is in use, the medical staff is located at the side of the patient's head, first clean the patient's oral and nasal secretions and foreign objects, the patient lies on his back, tilts his head back, lifts his neck, keeps the patient calm, uses simple respiratory muscles to assist ventilation, supports the lower jaw, and makes the three axes of the mouth, pharynx and larynx in a straight line, so as to directly look at the main intubation tube 1, pushes the patient's lower lip and lower jaw with the right thumb, uses an opener when necessary, clears foreign objects in the respiratory tract, holds the laryngoscope in the left hand and enters the oral cavity from the right corner of the mouth, presses the back of the tongue, slowly pushes the lens to the root of the tongue, and places it on the epiglottis, Lift the laryngoscope forward and upward to expose the glottis. When inserting the main cannula 1, shape the main cannula 1 through the shaping mechanism 7. Then, hold the front end of the main cannula 1 at the glottis with the right hand like a pen, and gently rotate the main cannula 1 into the trachea until the air bag 4 enters the glottis. Then, place the dental pad to protect the teeth. Take out the laryngoscope, open the three-way valve 6 to connect the syringe, and use the syringe to inject 5-10ml of air. Check whether the airway tube 5 is in the trachea, and fix the airway tube 5 and the dental pad with tape. The electrode patch 11 is placed on the patient's suprasternal fossa, the electrical signal sensor 12 measures tiny myoelectric activity, the electrical signal is amplified by the signal amplifier 13, and the signal is transmitted to the microcontroller 14. The microcontroller 14 can control the micro air pump 9 to work. When the patient inhales, the lungs expand. If the pressure of the air bag 4 remains unchanged, the main cannula 1 is compressed, which may cause esophageal tracheal fistula for a long time. Therefore, when the patient inhales, the muscle activity is enhanced, the myoelectric signal is enhanced, the electrical signal sensor 12 monitors the myoelectric activity, and transmits the signal to the microcontroller 14. The microcontroller 14 controls the micro air pump 9 to perform the suction activity. When the patient exhales, the muscle activity weakens, the myoelectric signal weakens, the electrical signal sensor 12 monitors the myoelectric activity, and transmits the signal to the microcontroller 14. The microcontroller 14 sends a working instruction to the micro air pump 9, so that the micro air pump 9 performs the inflation activity, thereby reasonably adjusting the pressure of the air bag 4, effectively avoiding the occurrence of esophageal tracheal fistula, and having high practicality.

[0044] It should be noted that the component connection relationships not specifically mentioned in the present invention are all assumed to adopt the existing technology. Since they do not involve the invention point and are widely used in the existing technology, the structural connection relationships are not described in detail.

[0045] It should be noted that when the present invention involves a numerical range, it should be understood that the two endpoints of each numerical range and any value between the two endpoints can be selected. Since the steps and methods used are the same as those in the embodiments, in order to avoid redundancy, the present invention describes the preferred embodiments. Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the attached claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A portable device for preventing esophageal tracheal fistula, comprising a main cannula (1), a sleeve (3) and an air bag (4) arranged on the main cannula (1), wherein the sleeve (3) and the air bag (4) are connected, and characterized in that: Also includes: A shaping mechanism (7) is arranged between the outer wall of the main cannula (1) and the inner wall of the sleeve (3) and at an end away from the airbag (4), and the shaping mechanism (7) is used to stabilize the shape of the main cannula (1); An air guide tube (5) is arranged on the sleeve (3) and is in communication with the sleeve (3); a mounting plate (8) is arranged at one end of the air guide tube (5) away from the sleeve (3); an air pump (9) is arranged on the mounting plate (8); and the air pump (9) is in communication with the air guide tube (5); An electrode patch (11) is arranged on a mounting plate (8) at a side away from the airway tube (5), and an electrical signal sensor (12) is arranged on the electrode patch (11); A controller (14) is arranged on the mounting plate (8), and the controller (14) is electrically connected to the air pump (9) and the electrical signal sensor (12).

2. The portable device for preventing esophageal tracheal fistula according to claim 1, characterized in that: The electrode patch (11) is connected to a mounting plate (8) on a side away from the airway tube (5) via an elastic band (10); a signal amplifier (13) is provided inside the electrode patch (11); an output end of the signal amplifier (13) is electrically connected to an input end of an electrical signal sensor (12).

3. The portable esophageal tracheal fistula prevention device according to claim 1, characterized in that: The shaping mechanism (7) comprises a guide tube (701), a shaping wire (702) and a buckle (703); the guide tube (701) is arranged between the outer wall of the main insertion tube (1) and the inner wall of the sleeve (3); one end of the shaping wire (702) is inserted into the interior of the guide tube (701); and the other end of the shaping wire (702) located outside the guide tube (701) is connected to the buckle (703).

4. The portable device for preventing esophageal tracheal fistula according to claim 1, characterized in that: The air guide tube (5) is provided with a three-way valve (6), and an annular tube (15) is provided between one end of the air guide tube (5) close to the sleeve (3) and the three-way valve (6).

5. The portable device for preventing esophageal tracheal fistula according to claim 2, characterized in that: A buffer pad (17) is fixedly arranged at the bottom of the mounting plate (8), and the elastic band (10) is fixed on the buffer pad (17) via a fixing block.

6. The portable device for preventing esophageal tracheal fistula according to claim 1, characterized in that: One end of the main cannula (1) away from the air bag (4) is provided with a tube seat (2), and one end of the sleeve (3) is connected to the tube seat (2).

7. The portable device for preventing esophageal tracheal fistula according to claim 6, characterized in that: One end of the main insert tube (1) away from the tube seat (2) is an inclined surface, and the main insert tube (1) is made of plastic.

8. The portable device for preventing esophageal tracheal fistula according to claim 1, characterized in that: The outer wall of the sleeve (3) is provided with scale marks (16).

9. The portable device for preventing esophageal tracheal fistula according to claim 2, characterized in that: The signal amplifier (13) is a triode.

10. The portable device for preventing esophageal tracheal fistula according to claim 1, characterized in that: The connection between the air bag (4) and the main cannula (1) is sealed.

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