Guiding and breathing system for gastrointestinal endoscopy

Abstract

The invention discloses a guiding and breathing system for digestive tract endoscopy, which comprises a guiding device and a breathing device, the guiding device comprises an occlusion body arranged in the oral cavity, and the occlusion body is provided with an endoscope operation through hole communicated with the oral cavity; the breathing device comprises a ventilation path used for being communicated with the nasal cavity. The endoscope operation through hole is directly exposed to the external environment, and the endoscope operation through hole and a ventilation path of the breathing device are mutually independent and do not interfere with each other. According to the guiding and breathing system, the operation difficulty that the endoscope enters the digestive tract can be greatly reduced, the advancing route and direction of the endoscope hose can be conveniently and accurately controlled, it is guaranteed that normal breathing oxygen supply is not affected, and positive-pressure breathing can be properly kept.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and more specifically, to a guiding and breathing system for digestive tract endoscopy. Background Art

[0002] With the continuous development of medical technology, endoscopy plays an increasingly important role in medical diagnosis and treatment. There are usually some problems in the use of endoscopy. First of all, endoscopy requires the operator to have superb skills and experience. Since the endoscope pipeline is a hose, it is difficult to operate.

[0003] Since endoscopic operation requires careful observation and recording of organ conditions, the examination time is long and the patient will feel pain. In order to reduce the pain of patients during endoscopic examinations, painless anesthesia is generally used during endoscopic examinations. At this time, the patient is often required to use an endoscopic mask to provide oxygen. It supplies oxygen through the side openings and can provide appropriate pressurized oxygen or direct oxygen supply to ensure the safety of the patient after anesthesia or sedation. This can also effectively reduce the patient's discomfort and pain.

[0004] However, the endoscope inlet and outlet on the existing endoscope mask are far away from the operating opening on the patient's bite pad. Since the endoscope pipeline is a soft tube, it is difficult for the operator to control the direction of the pipeline. The long-distance tube entry operation greatly increases the operator's operation difficulty. The endoscope pipeline passes through the endoscope inlet and outlet, through the mask cavity and the bite pad operating opening, and then enters the digestive tract. In this process, interference between the endoscope pipeline and the respiratory gas is inevitable. When giving the patient an endoscopic examination, if an emergency such as hypoxemia occurs, the normal ventilation and oxygen supply of the patient during the use of the endoscope cannot be ensured. Summary of the invention

[0005] In view of this, the present application proposes a guiding and breathing system for gastrointestinal endoscopic examination, which can greatly reduce the difficulty of the operation of entering the endoscope into the digestive tract, facilitate precise control of the route and direction of the endoscope hose, and ensure normal ventilation and oxygen supply.

[0006] The present application proposes a guiding and breathing system for gastrointestinal endoscopic examination, which includes a guiding device, which includes an occlusal body for being arranged in the oral cavity, and the occlusal body is provided with an endoscope operation through hole for communicating with the oral cavity; and a breathing device, which includes a ventilation path for communicating with the nasal cavity; the endoscope operation through hole is directly exposed to the external environment, and the endoscope operation through hole and the ventilation path of the breathing device are independent of and do not interfere with each other.

[0007] Preferably, the guiding device and the breathing device are independent devices separated from each other; or the guiding device and the breathing device are integrated, and the guiding device and the breathing device are integrally made or detachably assembled together.

[0008] Preferably, in the use state, except for the endoscope operation through hole, there are no other hole structures through which the digestive tract endoscope passes.

[0009] Preferably, a sealing structure is provided on the inner wall of the endoscope operation through hole of the occlusal body to achieve sealing between the outer surface of the digestive tract endoscope and the endoscope operation through hole when the digestive tract endoscope passes through the endoscope operation through hole from the outside and enters the oral cavity.

[0010] Preferably, the sealing structure is a one-way valve.

[0011] Specifically, the bite body includes an oral end that enters the oral cavity during use and a lens entrance end that is exposed to the outside.

[0012] Preferably, the guiding device comprises an auxiliary operation through hole offset to at least one side relative to the endoscope operation through hole.

[0013] Preferably, the guiding and breathing system comprises a negative pressure suction device, which is connected to the inside of the oral cavity through the auxiliary operation through hole.

[0014] Specifically, the bite body is a cylindrical bite body with a through hole inside; or the bite body is a two-section bite body; the oral end of the two-section bite body is a ring-shaped flat mouth body with arc-shaped ends and a middle length greater than the radius of the arcs at both ends, and the mirror entry end is a cylinder.

[0015] Furthermore, because the length of the occlusal body is equal to the length of the endoscope operation through hole, in order to reduce the endoscope entry distance, the length of the occlusal body is preferably in the range of 10 mm to 15 mm.

[0016] Preferably, the bite body is provided with a stopper for abutting against the lips outside the oral cavity during use, and the auxiliary operation through hole is provided at a position of the stopper adjacent to the oral cavity.

[0017] Preferably, the stopper is an arc-shaped plate, and further, the stopper may be an arc-shaped skin-friendly pad.

[0018] Specifically, the arc plate bends toward the oral end and forms an arc-shaped fitting surface on the surface close to the oral end; through holes penetrating the arc plate are set on both sides of the stopper, which are used to set a fixing component to fix the stopper, and the through holes can also be regarded as auxiliary operation through holes.

[0019] According to the present application, the guiding device may further include a stopper, which may be fixedly or detachably mounted on the circumference of the occlusal body and located between the oral end and the nasal airway connection block.

[0020] Preferably, the guiding device comprises a mounting structure, and the breathing device is detachably and rotatably mounted on the mounting structure.

[0021] Specifically, a mounting structure is fixedly or detachably provided on a side of the stopper close to the lens entrance end and above the occlusal body for rotatably supporting the breathing device.

[0022] Preferably, the mounting structure comprises a bracket arranged on the surface of the stopper at a position adjacent to the nasal cavity, the bracket having an open slot structure for mounting the breathing device.

[0023] Specifically, the slot structure is an elastic arc-shaped tubular structure with a notch on the upper portion, and the arc length angle of the arc is greater than 180 degrees.

[0024] Preferably, the guiding device comprises a nasal airway connection structure fixedly arranged on the occlusal body, the nasal airway connection structure comprises a gas inlet and a gas outlet connected to the gas inlet, the gas inlet is used to connect to the gas source, and the gas outlet is used to connect to the breathing device.

[0025] Preferably, the breathing apparatus comprises a breathing tube for connecting to an air source and two nasal airways, wherein the nasal airways are directly connected to the breathing tube to allow breathing.

[0026] As another configuration, the gas inlet and the gas outlet of the nasal airway connection structure may be respectively connected to a portion of the respiratory device in a sealed and gas-communicating manner.

[0027] Specifically, the breathing trachea and the nasal trachea of ​​the breathing device are separate, the breathing trachea is gas-communicatingly connected to the gas inlet of the nasal airway connecting structure, and the nasal trachea is gas-communicatingly connected to the gas outlet of the nasal airway connecting structure; in this way, the length of the breathing trachea can be appropriately increased to set other structures, such as setting functional holes or setting threads at the end of the breathing trachea.

[0028] Preferably, a flexible radial expansion portion is provided at the end of the nasal inlet airway, and the outer periphery of the radial expansion portion is in sealing contact with the nasal mucosa.

[0029] Preferably, the radial expansion portion is made of a material having a memory shape and elasticity or is an air bag that can be inflated, released, and retain gas.

[0030] Preferably, the nasal cannula is a flexible hose with adjustable length and / or bendability.

[0031] Preferably, a thread is provided at the end of the respiratory trachea; and / or an extension direction of the respiratory trachea and an extension direction of the nasal catheter are perpendicular to each other.

[0032] Preferably, the breathing device is provided with a functional hole located on the breathing trachea and the nasal catheter passage, and the functional hole is designed to be selectively closed or opened.

[0033] Preferably, the functional hole is provided with a vent valve, and the opening of the vent valve is adjustable.

[0034] Preferably, the functional hole is connected to a respiratory monitoring device, which is in air communication with the ventilation path of the respiratory device and is used to monitor respiratory information in real time.

[0035] Specifically, the guiding and breathing system for digestive tract endoscopy also includes a breathing control device, and a functional hole for connecting a breathing monitoring device is provided on the breathing trachea of ​​the breathing device in a sealed manner and in communication with the air path. The breathing monitoring device has a pressure sensor for detecting the airflow pressure in the breathing device and / or a flow sensor for detecting the airflow resistance data and / or a sensor for detecting the carbon dioxide concentration. The data obtained by the breathing monitoring device, such as the pressure waveform or the end-tidal carbon dioxide concentration waveform, is transmitted to the breathing control device through a circuit to ensure that the user's blood oxygen saturation is higher than 90%.

[0036] According to the technical solution of the present application, in the guiding device, when the endoscope enters the patient's body through the endoscope operation through hole connected to the oral cavity, because the inner wall of the endoscope operation through hole is made of hard material and is smooth, the endoscope hose can smoothly enter along the smooth inner wall of the endoscope operation through hole, and even if the patient's cooperation is low, the operation of inserting the endoscope can be completed well.

[0037] In the technical solution of the present application, the air paths of the breathing device and the guide device are separated from each other, thereby avoiding contamination of the endoscope by the patient's respiratory gas and ensuring that oxygen and other gases inhaled by the breathing device will not be contaminated by the patient's oral secretions or vomitus, thereby ensuring the safe use of medical equipment and the patient's medical safety.

[0038] The guiding device and the breathing device of the present application can be integrated into one body, which is more convenient for production and also convenient for the integrated operation of air supply and mirror insertion.

[0039] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic implementation modes and descriptions of the present application are used to explain the present application. In the accompanying drawings:

[0041] Figure 1 is a three-dimensional diagram of a guidance and breathing system according to a first specific embodiment;

[0042] Figure 2 is a perspective view of a guide and breathing system according to a first specific embodiment;

[0043] Figure 3 is a three-dimensional diagram of a first specific embodiment of a breathing device;

[0044] Figure 4 is a perspective view of a second embodiment of a breathing apparatus;

[0045] Figure 5 It is a perspective view of the occlusal body;

[0046] Figure 6 A three-dimensional image of the stopper;

[0047] Figure 7 is a perspective view of a guide device according to a second specific embodiment;

[0048] Figure 8 is a three-dimensional diagram of a third specific embodiment of a breathing device;

[0049] Fig. 9 is a perspective view of a third embodiment of a breathing apparatus;

[0050] Fig.10 is a schematic diagram of a first specific implementation of a card slot structure;

[0051] Fig.11 is a schematic diagram of a first specific implementation of the mounting structure;

[0052] Fig.12 is a schematic diagram of a guiding and breathing system according to a second specific embodiment;

[0053] Fig.13 is a schematic diagram of a guiding device according to a third specific embodiment.

[0054] Figure numbers: 10-guiding device; 11-biting body; 111-endoscopic operation through hole; 1111-sealing structure; 112-oral end; 113-endoscope end; 123-auxiliary operation through hole; 12-stopper; 121-endoscope mounting hole; 122-through hole; 13-mounting structure; 131-bracket; 132-slot structure; 14-nasal airway connection structure; 141-gas inlet; 142-gas outlet; 20-breathing device; 21-breathing trachea; 211-functional hole; 22-nasal trachea; 221-radial expansion part; 30-breathing monitoring device; 40-breathing control device; DETAILED DESCRIPTION

[0055] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods. Obviously, the drawings described below are only some implementation methods of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0056] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with specific implementation methods.

[0057] The present application proposes a guide and breathing system for digestive tract endoscopy, which includes a guide device 10 and a breathing device 20. The guide device 10 includes a bite body 11 for being arranged in the oral cavity, and the bite body 11 is provided with an endoscope operation through hole 111 for communicating with the oral cavity; the breathing device 20 includes a ventilation path for communicating with the nasal cavity; the endoscope operation through hole 111 is directly exposed to the external environment, and the endoscope operation through hole 111 and the ventilation path of the breathing device 20 are independent of each other and do not interfere with each other. The air paths of the breathing device and the guide device, which are separated from each other, do not affect each other, which ensures the safety of the use of medical equipment and the medical safety of patients.

[0058] In a specific embodiment of the present application, the guiding device 10 and the breathing device 20 may be independent devices separated from each other; the guiding device 10 and the breathing device 20 may also be integrated, such as the guiding device 10 and the breathing device 20 are integrally made or the breathing device 20 is detachably assembled on the guiding device 10.

[0059] The guiding device 10 and the breathing device 20 can be flexibly arranged, which greatly facilitates the operator to selectively use the guiding device 10 and / or the breathing device 20 according to the specific conditions of the patient, thereby reducing the use cost of the medical device.

[0060] In the use state, except for the endoscope operation through hole 111, there are no other hole structures for the digestive tract endoscope to pass through. When the operator performs the endoscope insertion operation, the endoscope hose does not need to enter the patient's mouth through the endoscope entrance and exit on the endoscope mask, and then the operator controls the end of the hose to enter the through hole of the bite pad before entering the patient's body, which avoids the difficulty of the operator operating the hose to pass through the two holes of the endoscope entrance and exit and the bite pad through hole at a certain distance from each other, and effectively reduces the endoscope insertion distance of the operator's operation.

[0061] In a specific embodiment of the present application, a sealing structure 1111 is provided on the inner wall of the endoscope operation through hole 111 of the occlusal body 11, so as to achieve a seal between the outer surface of the digestive tract endoscope and the endoscope operation through hole when the digestive tract endoscope passes through the endoscope operation through hole 111 from the outside and enters the oral cavity, and the sealing structure is a one-way valve. A one-way valve is provided at the end of the endoscope operation through hole 111, which can seal and block external gas from the operating environment of the endoscope, thereby ensuring the accuracy of the endoscopic examination results, and the gas exhaled by the patient can also be discharged normally from the body.

[0062] In a specific embodiment of the present application, the guide device 10 includes an auxiliary operation through hole 123 offset to at least one side relative to the endoscope operation through hole 111. And the guide and breathing system includes a negative pressure suction device, which is connected to the inside of the oral cavity through the auxiliary operation through hole 123. Specifically, the endoscope operation through hole 111 and the auxiliary operation through hole 123 offset to one side are provided in the guide device 10. When the patient vomits or produces secretions, the vomit or secretions can be directly sucked out using the negative pressure suction device without removing the endoscope from the patient's body, which greatly reduces the operator's operation time and difficulty and reduces the patient's pain.

[0063] Figure 5 is a perspective view of the bite body 11. In the specific embodiment of the present application, the bite body 11 can be set to various shapes, and the middle part has an endoscope operation through hole 111. In addition to being cylindrical, the shape of the oral end 112 can also be set to a flat mouth shape suitable for the oral cavity according to ergonomic principles, and the curve of the flat mouth is not limited. Such a setting can improve the adaptability of the bite body 11 and the oral cavity and reduce the foreign body sensation in the patient's oral cavity. In this specific embodiment, the bite body 11 is a two-stage bite body, and the oral end 112 of the two-stage bite body is a ring-shaped flat mouth body with arc-shaped ends and a middle length greater than the radius of the arc at both ends, and the entrance end 113 is a cylinder. Further, the radial dimension of the oral end 112 of the bite body 11 at the beginning is slightly smaller than the radial dimension at the end, which is more convenient for the patient to bite. Further, because the length of the bite body 11 is equal to the length of the endoscope operation through hole 111, in order to reduce the entrance distance of the endoscope, the length range of the bite body 11 is preferably 10mm-15mm.

[0064] Figure 1 For the first specific implementation of the application, Figure 2 is a perspective view of a first specific embodiment, as shown Figure 1 , Figure 2 The guide and breathing system for digestive tract endoscopy shown includes a guide device 10 and a breathing device 20 detachably mounted on the guide device 10. The guide device 10 includes a bite body 11, a nasal airway connection structure 14, and a stopper 12. The bite body 11 and the nasal airway connection structure 14 are fixed together, and the fixing method can be bonding or integrally made. The stopper 12 is detachably arranged on the end of the bite body 11 close to the oral cavity. The bite body 11 is a hollow cylinder, and the center thereof has an endoscope operation through hole 111. When performing an endoscopic examination, the endoscope can only enter the patient's body through the endoscope operation through hole 111 of the guide and breathing system and will not enter the patient through other holes of the system. The stopper 12 is an arc plate, and is bent toward the oral end 112. The surface close to the oral end 112 forms a fitting surface, which fits the patient's face and provides support for the entire guide and breathing system. The thickness of the arc plate ranges from 1mm to 3mm, and can be made of plastic with a certain hardness. The nasal airway connection structure 14 is provided with a gas inlet 141 and a gas outlet 142 in gas communication to form a nasal airway, and the nasal airway connection structure 14 is connected to the respiratory device 20 in gas communication. In this specific embodiment, the respiratory device 20 has a respiratory airway 21 and a nasal airway 22, and the respiratory airway 21 is detachably connected to the gas outlet 142 of the nasal airway connection structure 14, and the gas inlet 141 of the nasal airway connection structure 14 is connected to the gas source. A radial expansion portion 221 is provided at the end of the nasal airway 22. In this specific embodiment, the radial expansion portion 221 is made of a material with a memory shape and elasticity, and the outer periphery of the radial expansion portion 221 is in sealing contact with the nasal mucosa. In this specific embodiment, the respiratory airway 21 is a hollow round hose with a distance of 15mm-20mm between two central axes, a length range of 8mm-15mm, and an outer diameter range of 5mm-7mm.

[0065] When in use, the gas from the gas source enters the nasal airway connection structure 14 from the gas inlet 141, enters the respiratory trachea 21 through the nasal airway, and then enters the nasal airway 22, and the gas enters the patient's body from the nasal airway 22. During the whole process, the gas does not come into contact with the outside air, and there is no risk of contamination.

[0066] In the process of giving the patient oxygen or anesthetic gas or using a ventilator to help the patient breathe, the operator can simultaneously perform the endoscope insertion operation. In this specific embodiment, because the length of the occlusal body 11 is equal to the length of the endoscope operation through hole 111, in order to reduce the endoscope insertion distance, the length of the occlusal body 11 is 10mm-15mm. The endoscope hose enters the patient's body along the inner wall of the endoscope operation through hole 111. Because the inner wall of the endoscope operation through hole 111 is a hard material and is smooth, the endoscope hose can smoothly enter along the smooth inner wall of the endoscope operation through hole 111, which greatly reduces the difficulty of the operator's operation. During the entire operation process, the ventilation paths of the endoscope operation through hole 111 and the breathing device 20 are independent of each other and do not interfere with each other, avoiding the contamination of the endoscope by the patient's breathing gas, and ensuring that the oxygen and other gases inhaled by the breathing device 20 will not be contaminated by the patient's oral secretions or vomitus, ensuring the safety of the use of medical equipment and the medical safety of the patient.

[0067] In a specific embodiment of the present application, the stopper 12 may be an arc-shaped skin-friendly pad, and the shape of the stopper 12 is not limited.

[0068] Figure 6 A three-dimensional image of the stopper. Figure 6 As shown, the outer contour of the stopper 12 is square, and a mirror mounting hole 121 is set in the middle, and through holes 122 are also set on both sides thereof. An elastic fixing component can be set in the through hole 122, which can be an elastic binding rope or a clamp. The fixing component is used to fix the stopper 12 to the patient's head, creating better conditions for the operator's operation. In this specific embodiment, an auxiliary operation through hole 123 can be set in the part of the stopper 12 close to the oral cavity, or the through hole 122 can be used as the auxiliary operation through hole 123. In this way, the endoscope operation through hole 111 and the auxiliary operation through hole 123 offset to one side are simultaneously set in the guiding device 10 of the present application. When the patient vomits or produces secretions, the endoscope can be directly sucked out of the patient's body without removing the endoscope from the patient's body, and the vomitus or secretions can be directly sucked out using a negative pressure suction device, which greatly reduces the operator's operation time and difficulty and reduces the patient's pain.

[0069] Fig.10 is a schematic diagram of a first specific implementation of the card slot structure, Fig.11 is a schematic diagram of a first specific implementation of the installation structure, Fig.13 FIG. 4 is a schematic diagram of a guiding device according to a third specific embodiment. Fig.10 , Fig.11 , Fig.13 As shown, in the third specific embodiment, the guide device 10 includes an engaging body 11, a stopper 12 and a mounting structure 13 detachably provided on the stopper 12, and the breathing device 20 is detachably and rotatably mounted on the mounting structure 13.

[0070] In this specific embodiment, the stopper 12 is located on one side close to the lens entrance end 113 and above the occlusal body 11 , and a mounting structure 13 is fixedly or detachably provided for rotatably supporting the breathing device 20 .

[0071] The mounting structure 13 includes a bracket 131 disposed at a position adjacent to the nasal cavity on the surface of the stopper 12, and the bracket 131 has an open slot structure 132. In the present specific embodiment, the slot structure 132 is an elastic circular arc tubular structure with a notch at the top, and the arc length angle of the circular arc is greater than 180 degrees. The respiratory trachea 21 of the respiratory device 20 is a hose with a circular shape, and the diameter is adapted to the diameter of the slot structure 132. The extension direction of the respiratory trachea 21 is perpendicular to the extension direction of the nasal inlet trachea 22. Specifically, in the present specific embodiment, after the guide and respiratory system is fixed to the patient's head, the slot structure 132 is disposed perpendicular to the patient's nasal airway, and the circular arc tubular structure of the slot structure 132 can be integral or two-stage, and the bracket 131 is plugged into the stopper 12, and the number of brackets 131 is set in accordance with the number of slot structures 132, which can be one or two. The slot structure 132 and the bracket 131 are rotatably connected, so that the nasal inlet airway 22 can enter the nasal cavity more easily, and the inclination angle of the nasal inlet airway 22 relative to the nasal cavity can be dynamically adjusted, thereby improving the patient's comfort. The structure of this specific embodiment is simpler, easier to produce and install, and can also achieve the effect that the endoscopic operation through hole 111 of the guide device 10 and the inhalation path of the respiratory device 20 are independent of each other and do not interfere with each other. In the present application, the slot structure 132 is not limited to the arc-shaped tubular structure disclosed in the present application, and can be a claw structure, a tubular structure with a rectangular cross-section, etc. As long as the concept of being able to rotatably clamp the respiratory device 20 belongs to the protection scope of this application.

[0072] Figure 7 It is a perspective view of a third specific embodiment of the guiding device according to the present application. Figure 8 3D diagram of a third embodiment of a breathing device. Figure 7 The guide device 10 is preferably installed as follows Figure 8 The breathing apparatus 20 shown, Figure 7 , Figure 8 , Fig. 9As shown, compared with the first specific embodiment, the occlusal body 11 and the nasal airway connecting structure 14 are detachably fixed together, and no stopper 12 is provided. The breathing device 20 is also detachably installed at the gas outlet 142 of the nasal airway connecting structure 14. The endoscope operation through hole 111 and the ventilation path of the breathing device 20 in the second specific embodiment are independent of each other and do not interfere with each other, which can also ensure that the operation of inserting the endoscope is well completed, and ensure that the oxygen and other gases inhaled by the breathing device 20 will not be contaminated by the patient's oral secretions or vomitus, thereby ensuring the safety of the use of medical equipment and the medical safety of patients.

[0073] like Figure 8 As shown, the breathing device 20 includes a breathing tube 21 for connecting to an air source and two nasal airways 22, wherein the nasal airways 22 are directly connected to the breathing tube 21 to allow breathing.

[0074] As another specific embodiment, the gas inlet 141 and the gas outlet 142 of the nasal airway connection structure 14 can be respectively connected to parts of the breathing device 20 in a sealed and gas-communicating manner.

[0075] Specifically, the respiratory trachea 21 and the nasal trachea 22 of the respiratory device 20 are split, the respiratory trachea 21 is gas-connected to the gas inlet 141 of the nasal airway connection structure 14, and the nasal trachea 22 is gas-connected to the gas outlet 142 of the nasal airway connection structure 14; in this way, the length of the respiratory trachea 21 can be appropriately increased to set other structures, such as setting a functional hole 211 or setting a thread at the end of the respiratory trachea 21.

[0076] exist Figure 1 In the first specific embodiment, the radial expansion portion 221 is made of a material with memory shape and elasticity, while in the present specific embodiment, the radial expansion portion 221 is an air bag that can be inflated, released, and retains gas. The air bag is a low-pressure air bag. After the nasal inlet tube 22 is adjusted to a suitable position in the patient's nasal cavity, a proper amount of gas is filled into the air bag so that the air bag is close to the patient's nasal mucosa to achieve a sealing effect, isolating the outside air from the respiratory device 20, and ensuring that the gas inhaled by the patient is not contaminated by the outside air.

[0077] In this specific embodiment, in order to match the spatial relative position of the oral cavity and nasal cavity of the patient, the nasal inlet airway 22 is a flexible hose with adjustable length and flexibility. The breathing apparatus 20 can be applied to patients with different body characteristics and different genders. When in use, the nasal inlet airway 22 is first adjusted to a suitable length so that the nasal inlet airway 22 penetrates 5mm-10mm into the nasal cavity. During the insertion of the nasal inlet airway 22, the nasal inlet airway 22 is appropriately bent to ensure that the nasal inlet airway 22 matches the inclined direction of the patient's nasal cavity, which can improve the comfort of the patient.

[0078] Figure 4 is a perspective view of a second embodiment of a breathing device. Figure 4 As shown, the extending direction of the respiratory trachea 21 is perpendicular to the extending direction of the nasal inlet trachea 22. The gas from the air source will not directly rush into the patient's nasal cavity, but enter the nasal inlet trachea 22 after a 90-degree bend from the respiratory trachea 21 and then enter the patient's nasal cavity, which greatly reduces the impact of the airflow and reduces the patient's discomfort.

[0079] Figure 3 A three-dimensional diagram of a first specific embodiment of a breathing device, such as Figure 3 As shown, a functional hole 211 may also be provided on the ventilation air path of the respiratory device 20 for connecting the air paths of various medical devices.

[0080] In a specific embodiment of the present application, the functional hole 211 is designed to be selectively closed or opened. A ventilation valve is provided at the functional hole 211, and the opening of the ventilation valve is adjustable. In this specific embodiment, the respiratory trachea 21 and the nasal trachea 22 of the respiratory device 20 are split, the respiratory trachea 21 is connected to the gas inlet 141 of the nasal airway connection structure 14 in a gaseous manner, and the nasal trachea 22 is connected to the gas outlet 142 of the nasal airway connection structure 14 in a gaseous manner; in this way, the length of the respiratory trachea 21 can be appropriately increased to set other structures, such as setting the functional hole 211 or setting a thread at the end of the respiratory trachea 21. The guiding and breathing system of the present application is also provided with a breathing monitoring device 30, which can also be connected through the functional hole 211. The breathing monitoring device 30 has a pressure sensor for detecting the airflow pressure in the breathing device 20 and / or a flow sensor for detecting the airflow resistance data and / or a sensor for detecting the carbon dioxide concentration, which can monitor the patient's vital signs at all times, such as the patient's pressure waveform or end-tidal carbon dioxide concentration waveform, etc. When necessary, it can quickly increase the input pressure of oxygen and the suction force for extracting carbon dioxide to ensure that the user's blood oxygen saturation is higher than 90%. A standard external thread is provided at the end of the breathing trachea 21 of this specific embodiment, which can be used in conjunction with other medical equipment such as a ventilator to help patients inhale oxygen and expel carbon dioxide.

[0081] Fig.12 Schematic diagram of the guidance and breathing system according to the second specific embodiment. Compared with the first specific embodiment, the nasal inlet airway 22 is replaced with a flexible hose with adjustable length. The breathing device 20 can be suitable for patients with different body characteristics and different genders. When in use, the nasal inlet airway 22 is first adjusted to a suitable length so that the nasal inlet airway 22 penetrates 5mm-10mm into the nasal cavity. During the insertion of the nasal inlet airway 22, the nasal inlet airway 22 is appropriately bent to ensure that the nasal inlet airway 22 matches the inclined direction of the patient's nasal cavity, which can improve the patient's comfort.

[0082] In the specific implementation of the present application, the length of the stopper 12 from the end face of the oral end 112 is set to 20mm-30mm. This length of the entrance range can ensure that the patient does not feel a strong foreign body sensation, and make the end face of the oral end 112 of the endoscope operation through hole 111 as close to the patient's throat as possible. When the operator operates the endoscope hose to enter the patient's oral cavity, the operating environment within a long distance is the endoscope operation through hole 111 with a hard and smooth inner wall, so that the hose smoothly passes through the oral cavity into the patient's pharynx, greatly reducing the difficulty of the operation of inserting the endoscope.

[0083] In a specific embodiment, the bite body 11 should be made of a tough and antibacterial material.

[0084] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0085] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0086] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed by the present invention.

Claims

1. Guidance and breathing system for digestive tract endoscopy, including: A guide device (10), the guide device (10) comprising a bite body (11) for being arranged in the oral cavity, the bite body (11) being provided with an endoscope operation through hole (111) for communicating with the oral cavity; and A respiratory device (20) comprising a ventilation path for communicating with a nasal cavity; It is characterized in that the endoscope operation through hole (111) is directly exposed to the external environment, and the endoscope operation through hole (111) and the ventilation path of the breathing device (20) are independent of each other and do not interfere with each other.

2. The guiding and breathing system for digestive tract endoscopy according to claim 1, characterized in that: The guiding device (10) and the breathing device (20) are independent devices separated from each other; or The guiding device (10) and the breathing device (20) are integrated, and the guiding device (10) and the breathing device (20) are integrally manufactured or detachably assembled together.

3. The guiding and breathing system for digestive tract endoscopy according to claim 1, characterized in that: When in use, except for the endoscope operation through hole (111), there is no other hole structure for the digestive tract endoscope to pass through.

4. The guiding and breathing system for digestive tract endoscopy according to claim 1, 2 or 3, characterized in that: A sealing structure (1111) is provided on the inner wall of the endoscope operation through hole (111) of the occlusal body (11) so as to achieve sealing between the outer surface of the digestive tract endoscope and the endoscope operation through hole (111) when the digestive tract endoscope passes through the endoscope operation through hole (111) from the outside and enters the oral cavity; Preferably, the sealing structure (1111) is a one-way valve.

5. The guiding and breathing system for digestive tract endoscopy according to claim 1, 2 or 3, characterized in that: The guiding device (10) comprises an auxiliary operation through hole (123) offset to at least one side relative to the endoscope operation through hole (111); Preferably, the guiding and breathing system comprises a negative pressure suction device, which is connected to the inside of the oral cavity through the auxiliary operation through hole (123).

6. The guiding and breathing system for digestive tract endoscopy according to claim 1, 2 or 3, characterized in that: The bite body (11) is provided with a stopper (12) for abutting against the lip outside the oral cavity when in use, and the auxiliary operation through hole (123) is provided at a position of the stopper (12) adjacent to the oral cavity; Preferably, the stopper (12) is an arc-shaped plate.

7. The guiding and breathing system for digestive tract endoscopy according to claim 2, characterized in that: The guiding device (10) further comprises a mounting structure (13), and the breathing device (20) is detachably and rotatably mounted on the mounting structure (13); Preferably, the mounting structure (13) comprises a bracket (131) arranged on the surface of the stopper (12) adjacent to the nasal cavity, and the bracket (131) has an open slot structure (132) for mounting the breathing device (20).

8. The guiding and breathing system for digestive tract endoscopy according to claim 1, characterized in that: The guiding device (10) comprises a nasal airway connection structure (14) fixedly arranged on the occlusal body (11), the nasal airway connection structure (14) comprising a gas inlet (141) and a gas outlet (142) connected to the gas inlet (141), the gas inlet (141) being used to connect to a gas source, and the gas outlet (142) being used to connect to a breathing device.

9. The guiding and breathing system for digestive tract endoscopy according to claim 1, characterized in that: The breathing device (20) comprises: A breathing trachea (21) and two nasal trachea (22) for connecting to an air source, wherein the nasal trachea (22) are connected to the breathing trachea (21) to allow breathing; Preferably, the end of the nasal inlet airway (22) is provided with a flexible radial expansion portion (221), and the outer periphery of the radial expansion portion (221) is in sealing contact with the nasal mucosa; Preferably, the radial expansion portion (221) is made of a material having a memory shape and elasticity or is an airbag capable of inflating, releasing, and retaining gas; Preferably, the nasal cannula (22) is a flexible tube with adjustable length and / or bendable; Preferably, the end of the breathing tube (21) is provided with a thread; and / or The extending direction of the respiratory trachea (21) and the extending direction of the nasal inlet catheter (22) are perpendicular to each other.

10. The guiding and breathing system for digestive tract endoscopy according to claim 1, characterized in that: The breathing device (20) is provided with a functional hole (211) located on the passage between the breathing trachea (21) and the nasal catheter (22), and the functional hole (211) is designed to be selectively closed or opened; Preferably, the functional hole (211) is provided with a vent valve, and the opening of the vent valve is adjustable; Preferably, the functional hole (211) is connected to a respiratory monitoring device (30), and the respiratory monitoring device (30) is in air communication with the ventilation path of the respiratory device (20) for real-time monitoring of respiratory information.

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