Guiding and breathing system for gastrointestinal endoscopy

Abstract

The utility model 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, more particularly, to a guiding and breathing system for digestive tract endoscopy. BACKGROUND

[0002] With the continuous development of medical technology, endoscopic technology plays an increasingly important role in medical diagnosis and treatment. During the use of endoscopic operation, there are usually some problems. First, the operator needs to have superb skills and experience in endoscopic operation, and it is difficult to operate because the endoscopic tube is a flexible tube.

[0003] Since the endoscopic operation needs to carefully observe and record the organ condition, the examination time is relatively long, and the patient will feel pain. In order to alleviate the pain of the patient during the endoscopic examination, a painless anesthesia is generally used in the endoscopic examination, and at this time, an endoscopic mask is usually used to provide oxygen to the patient, which provides oxygen through a side hole, can provide oxygen with appropriate pressure or directly, and ensures the safety of the patient after being given anesthetic or sedative, so as to effectively reduce the discomfort and pain of the patient.

[0004] However, the distance between the endoscopic inlet and outlet on the existing endoscopic mask and the operation opening on the patient's bite pad is far, because the endoscopic tube is a flexible tube, the operator himself is not easy to control the direction of the tube, and the long-distance tube operation greatly increases the difficulty of the operator's operation; the endoscopic tube enters the digestive tract through the endoscopic inlet and outlet, the mask cavity and the bite pad operation opening, and the interference between the endoscopic tube and the respiratory gas inevitably occurs in the process. When the patient is given endoscopic examination, if hypoxemia and other emergency situations occur, the normal ventilation and oxygen supply of the patient during the use of the endoscope cannot be ensured. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a guiding and breathing system for digestive tract endoscopy, which can greatly reduce the difficulty of endoscopic operation into the digestive tract, facilitate accurate control of the travel route and direction of the endoscopic tube, and ensure normal ventilation and oxygen supply.

[0006] The present application provides a guiding and breathing system for digestive tract endoscopy, which comprises a guiding device comprising a bite body for being arranged in the oral cavity, the bite body being provided with an endoscopic operation through hole for communicating with the oral cavity; and a breathing device comprising a ventilation path for communicating with the nasal cavity; the endoscopic operation through hole is directly exposed to the external environment, and the endoscopic operation through hole and the ventilation path of the breathing device are independent of each other 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 integrally arranged, integrally manufactured or detachably assembled together.

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

[0009] Preferably, a sealing structure is arranged on the inner wall of the endoscope operation through hole of the occlusion body, so as to realize the 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 into the oral cavity.

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

[0011] Specifically, the occlusion body includes an oral cavity end entering the oral cavity in use and an endoscope entering end exposed to the outside.

[0012] Preferably, the guiding device includes 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 includes a negative pressure suction device communicated with the inside of the oral cavity through the auxiliary operation through hole.

[0014] Specifically, the occlusion body is a cylindrical occlusion body with a through hole inside; or the occlusion body is a two-section occlusion body; the oral cavity end of the two-section occlusion body is a ring-shaped flat mouth body with two arc-shaped ends and a length of the middle part greater than the radii of the two arc-shaped ends; and the endoscope entering end is a cylindrical body.

[0015] Further, because the length of the occlusion body is equal to the length of the endoscope operation through hole, in order to reduce the endoscope entering distance, the length of the occlusion body is preferably in the range of 10mm-15mm.

[0016] Preferably, the occlusion body is provided with a stopper for abutting against the lip outside the oral cavity in use, and the auxiliary operation through hole is arranged at the position of the stopper close to the oral cavity.

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

[0018] Specifically, the arc-shaped plate is curved towards the oral cavity end and forms an arc-shaped fitting surface on the surface close to the oral cavity end; through holes penetrating through the arc-shaped plate are arranged on both sides of the stopper, for arranging a fixing assembly for fixing the stopper, and the through holes can also be regarded as auxiliary operation through holes.

[0019] According to the present application, the guide device can further comprise a stopper which is fixedly or detachably sleeved on the circumference of the bite body and located between the oral end and the nasal airway connecting block.

[0020] Preferably, the guide 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 arranged on the side of the stopper close to the entry end and above the bite body, for rotatably supporting the breathing device.

[0022] Preferably, the mounting structure comprises a bracket arranged on the surface of the stopper close to the nasal cavity, and the bracket has an open clamping groove structure for mounting the breathing device.

[0023] Specifically, the clamping groove structure is an elastic circular-arc tubular structure with a notch on the upper part, and the arc length angle of the circular arc is greater than 180 degrees.

[0024] Preferably, the guide device comprises a nasal airway connecting structure fixedly arranged on the bite body, and the nasal airway connecting structure comprises a gas inlet and a gas outlet in communication with the gas inlet, the gas inlet is used for connecting a gas source, and the gas outlet is used for connecting the breathing device.

[0025] Preferably, the breathing device comprises a breathing air tube for connecting the gas source and two nasal air tubes, and the nasal air tubes are directly in communication with the breathing air tube to allow breathing.

[0026] As another arrangement, the gas inlet and the gas outlet of the nasal airway connecting structure can be respectively connected to the breathing device in a sealed and gas-communicating manner.

[0027] Specifically, the breathing air tube and the nasal air tube of the breathing device are separate, the breathing air tube is connected to the gas inlet of the nasal airway connecting structure in a gas-communicating manner, and the nasal air tube is connected to the gas outlet of the nasal airway connecting structure in a gas-communicating manner; in this way, the length of the breathing air tube can be moderately increased to arrange other structures, such as arranging a functional hole or arranging threads on the end of the breathing air tube.

[0028] Preferably, the end of the nasal air tube is provided with a flexible radial expansion part, and the outer periphery of the radial expansion part is in sealed contact with the nasal mucosa.

[0029] Preferably, the radial expansion part is made of a material with a memory shape and elasticity or is a gas bag which can be filled, discharged and kept.

[0030] Preferably, the nasal intubation tube is an adjustable-length and / or flexible tube.

[0031] Preferably, the end of the breathing trachea is threaded; and / or the extension direction of the breathing trachea is perpendicular to the extension direction of the nasal trachea.

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

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

[0034] Preferably, the functional port is connected to a respiratory monitoring device, which is connected to the ventilation path of the respiratory device for real-time monitoring of respiratory information.

[0035] Specifically, the guidance and breathing system for gastrointestinal endoscopy also includes a breathing control device. The breathing tube of the breathing device is sealed and has a functional port for connecting to a breathing monitoring device. The breathing monitoring device has a pressure sensor for detecting the airflow pressure inside the breathing device and / or a flow sensor for detecting the airflow resistance data and / or a sensor for detecting carbon dioxide concentration. The data obtained by the breathing monitoring device, such as pressure waveforms or end-tidal carbon dioxide concentration waveforms, are transmitted to the breathing control device to ensure that the user's blood oxygen saturation is higher than 90%.

[0036] According to the technical solution of this application, in the guide device, when the endoscope enters the patient's body through the endoscope operation port communicating with the oral cavity, because the inner wall of the endoscope operation port is made of a hard material and is smooth, the endoscope tube can smoothly enter along the smooth inner wall of the endoscope operation port, so that even if the patient's cooperation is low, the endoscope insertion operation can be completed well.

[0037] In the technical solution of this application, the airways of the breathing device and the guiding device are separated, which avoids the contamination of the endoscope by the patient's breathing gas, and also ensures that the oxygen and other gases inhaled by the breathing device are not contaminated by the patient's oral secretions or vomit, thus ensuring the safety of the medical device and the patient's medical safety.

[0038] The guiding device and breathing device of this application can be manufactured as a single unit, which is more convenient for production and also facilitates the integrated operation of air supply and lens insertion.

[0039] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0040] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings:

[0041] Figure 1 A three-dimensional diagram of the guidance and respiratory system according to the first specific embodiment;

[0042] Figure 2 A perspective view of the guidance and respiratory system according to the first specific embodiment;

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

[0044] Figure 4 A perspective view of a second specific embodiment of the breathing device;

[0045] Figure 5 A perspective view of the occlusal body;

[0046] Figure 6 A 3D drawing of the stop component;

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

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

[0049] Figure 9 A perspective view of a third specific embodiment of the breathing device;

[0050] Figure 10 This is a schematic diagram of a first specific embodiment of the card slot structure;

[0051] Figure 11 This is a schematic diagram of a first specific embodiment of the installation structure;

[0052] Figure 12 This is a schematic diagram of the guidance and breathing system according to the second specific embodiment;

[0053] Figure 13 This is a schematic diagram of a guide device according to a third specific embodiment.

[0054] Figure Numbers: 10-Guiding Device; 11-Occlusal Body; 111-Endoscope Operation Through-hole; 1111-Sealing Structure; 112-Oral End; 113-Instrument End; 123-Auxiliary Operation Through-hole; 12-Stop; 121-Instrument 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-Respiratory Device; 21-Breathing Trachea; 211-Functional Hole; 22-Nasal Trachea; 221-Radial Expansion Section; 30-Respiratory Monitoring Device; 40-Respiratory Control Device; Detailed Implementation

[0055] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the specific embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0056] The technical solution of this application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0057] This application discloses a guidance and breathing system for gastrointestinal endoscopy. The system includes a guidance device 10 and a breathing device 20. The guidance device 10 includes a jaw 11 for placement in the oral cavity, with an endoscope operating port 111 communicating with the oral cavity. The breathing device 20 includes a ventilation path communicating with the nasal cavity. The endoscope operating port 111 is directly exposed to the external environment, and the ventilation path of the endoscope operating port 111 and the breathing device 20 are independent and do not interfere with each other. The separate airways of the breathing device and the guidance device do not affect each other, ensuring the safety of the medical device and the patient's medical safety.

[0058] In specific embodiments of this application, the guiding device 10 and the breathing device 20 can be independent devices that are separate from each other; the guiding device 10 and the breathing device 20 can also be integrated, such as the guiding device 10 and the breathing device 20 being integrally formed or the breathing device 20 being detachably mounted on the guiding device 10.

[0059] The guide device 10 and the breathing device 20 can be flexibly configured, which greatly facilitates the operator to selectively use the guide device 10 and / or the breathing device 20 according to the patient's specific condition, and reduces the cost of using medical devices.

[0060] In use, apart from the endoscopic operation port 111, there are no other openings or structures through which the digestive tract endoscope passes. During insertion, the endoscopic tubing does not need to pass through the endoscope inlet / outlet on the endoscope mask into the patient's mouth, and then the operator must control the end of the tubing to enter the occlusal pad through the port. This avoids the difficulty of the operator having to maneuver the tubing through both the endoscope inlet / outlet and the occlusal pad through-hole, which are some distance apart, effectively reducing the insertion distance for the operator.

[0061] In a specific embodiment of this application, a sealing structure 1111 is provided on the inner wall of the endoscope operation port 111 of the occlusal body 11 to achieve a seal between the outer surface of the digestive tract endoscope and the endoscope operation port when the digestive tract endoscope passes through the endoscope operation port 111 from the outside and enters the oral cavity. The sealing structure is a one-way valve. The one-way valve at the endoscope insertion point of the endoscope operation port 111 can seal and block external gas from entering the operating environment of the endoscope, ensuring the accuracy of the endoscopic examination results, while also allowing the patient's exhaled gas to be normally expelled from the body.

[0062] In a specific embodiment of this application, the guiding device 10 includes an auxiliary operating port 123 offset to at least one side relative to the endoscope operating port 111. Furthermore, the guiding and breathing system includes a negative pressure suction device, which communicates with the oral cavity through the auxiliary operating port 123. Specifically, the guiding device 10 simultaneously provides the endoscope operating port 111 and the side-offset auxiliary operating port 123. When the patient vomits or produces secretions, the endoscope does not need to be removed from the patient's body; the vomit or secretions can be directly suctioned out using the negative pressure suction device, greatly reducing the operator's operation time and difficulty, and alleviating the patient's suffering.

[0063] Figure 5 This is a perspective view of the occlusal body 11. In a specific embodiment of this application, the occlusal body 11 can be configured in various shapes, as long as it has an endoscope operating through-hole 111 in the middle. The oral cavity end 112, in addition to being cylindrical, can also be configured as a flattened shape suitable for the oral cavity according to ergonomic principles; the curve of the flattened shape is not limited. This configuration can improve the fit between the occlusal body 11 and the oral cavity, reducing the patient's foreign body sensation. In this specific embodiment, the occlusal body 11 is a two-segment occlusal body. The oral cavity end 112 of the two-segment occlusal body is an annular flattened body with arc-shaped ends and a middle length greater than the radius of the arc at both ends, while the endoscope insertion end 113 is cylindrical. Furthermore, the radial dimension at the beginning of the oral cavity end 112 of the occlusal body 11 is slightly smaller than the radial dimension at the end, making it easier for the patient to bite down. Furthermore, since the length of the occlusal body 11 is equal to the length of the endoscope operating through-hole 111, in order to reduce the endoscope insertion distance, the length range of the occlusal body 11 is preferably 10mm-15mm.

[0064] Figure 1 This is the first specific implementation method of the application. Figure 2 This is a perspective view of the first specific embodiment, such as... Figure 1 , Figure 2 The illustrated guidance and breathing system for gastrointestinal endoscopy includes a guidance device 10 and a breathing device 20 detachably mounted on the guidance device 10. The guidance device 10 includes a bite body 11, a nasal airway connection structure 14, and a stop 12. The bite body 11 and the nasal airway connection structure 14 are fixedly mounted together, either by bonding or by integral fabrication. The stop 12 is detachably mounted on the bite body 11 at one end near the oral cavity. The bite body 11 is a hollow cylinder with an endoscope operation through-hole 111 at its center. During endoscopy, the endoscope can only enter the patient's body through the endoscope operation through-hole 111 of the guidance and breathing system, without passing through other openings in the system. The stop 12 is an arc-shaped plate that curves towards the oral cavity end 112, with its surface near the oral cavity end 112 forming a contact surface that conforms to the patient's face, providing support for the entire guidance and breathing system. The thickness of the arc-shaped plate ranges from 1mm to 3mm and can be made of plastic with a certain degree of rigidity. A nasal airway connection structure 14 is provided with a gas inlet 141 and a gas outlet 142 connected in gas communication to form a nasal airway. The nasal airway connection structure 14 is connected in gas communication with the breathing device 20. In this specific embodiment, the breathing device 20 has a breathing trachea 21 and a nasal inlet trachea 22. The breathing trachea 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 a gas source. A radial expansion portion 221 is provided at the end of the nasal inlet trachea 22. In this specific embodiment, the radial expansion portion 221 is made of a material with shape memory and elasticity, and the outer periphery of the radial expansion portion 221 is in sealed contact with the nasal mucosa. In this specific embodiment, the breathing trachea 21 is a hollow round tube with two central axes spaced 15mm-20mm apart, a length ranging from 8mm-15mm, and an outer diameter ranging from 5mm-7mm.

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

[0066] While administering oxygen or anesthetic gas to the patient, or using a ventilator to assist breathing, the operator can simultaneously perform endoscopic insertion. In this specific embodiment, because the length of the occlusal body 11 is equal to the length of the endoscope operating port 111, the length of the occlusal body 11 is 10mm-15mm to reduce the insertion distance of the endoscope. The endoscope tubing enters the patient's body along the inner wall of the endoscope operating port 111. Because the inner wall of the endoscope operating port 111 is made of a hard and smooth material, the endoscope tubing can smoothly enter along the smooth inner wall of the endoscope operating port 111, greatly reducing the difficulty of the operator's operation. Throughout the entire operation, the ventilation path of the endoscope operating port 111 and the breathing device 20 are independent and do not interfere with each other, avoiding contamination of the endoscope by the patient's breathing gas, and ensuring that the oxygen and other gases inhaled by the breathing device 20 are not contaminated by the patient's oral secretions or vomit, ensuring the safety of the medical device and the patient's medical safety.

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

[0068] Figure 6 A 3D drawing of the stop component. (e.g.) Figure 6 As shown, the stop 12 has a square outline, with an endoscope mounting hole 121 in the center and through holes 122 on both sides. An elastic fixing component, such as an elastic cord or clamp, can be installed in the through holes 122. The fixing component is used to fix the stop 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 provided in the part of the stop 12 close to the oral cavity, or the through hole 122 can be used as an auxiliary operation through hole 123. Thus, the guide device 10 of this application simultaneously provides an endoscope operation through hole 111 and an auxiliary operation through hole 123 offset to one side. When the patient vomits or produces secretions, the endoscope does not need to be removed from the patient's body; instead, the vomit or secretions can be directly suctioned out using a negative pressure suction device, greatly reducing the operator's operation time and difficulty, and reducing the patient's pain.

[0069] Figure 10 This is a schematic diagram of a first specific embodiment of the card slot structure. Figure 11 This is a schematic diagram of a first specific embodiment of the installation structure. Figure 13 This is a schematic diagram of a guide device according to a third specific embodiment. Figure 10 , Figure 11 , Figure 13 As shown, in the third specific embodiment, the guiding device 10 includes a biting body 11, a stop member 12, and a mounting structure 13 detachably disposed on the stop member 12, and the breathing device 20 is detachably and rotatably mounted on the mounting structure 13.

[0070] In this specific embodiment, the stop member 12 is located on the side near the end of the lens 113 and above the bite body 11, and is fixedly or detachably provided with the mounting structure 13 for rotatably supporting the breathing device 20.

[0071] The mounting structure 13 includes a bracket 131 disposed on the surface of the stop member 12 near the nasal cavity. The bracket 131 has an open slot structure 132. In this embodiment, the slot structure 132 is a flexible, arc-shaped tubular structure with a notch at the top, and the arc length angle is greater than 180 degrees. The breathing tube 21 of the breathing device 20 is a circular flexible tube with a diameter adapted to the diameter of the slot structure 132. The extension direction of the breathing tube 21 is perpendicular to the extension direction of the nasal inlet tube 22. Specifically, in this embodiment, after the guide and breathing system are fixed to the patient's head, the slot structure 132 is positioned perpendicular to the patient's nasal airway. The arc-shaped tubular structure of the slot structure 132 can be a single piece or a two-section structure. The bracket 131 is inserted into the stop member 12. The number of brackets 131 is determined by the number of slot structures 132, and can be one or two pieces. The slot structure 132 and the bracket 131 are rotatably connected, making it easier for the nasal inlet tube 22 to enter the nasal cavity. The tilt angle of the nasal inlet tube 22 relative to the nasal cavity can be dynamically adjusted, improving patient comfort. This specific embodiment has a simpler structure, is easier to manufacture and install, and also achieves the effect that the endoscopic operation port 111 of the guide device 10 and the inhalation path of the breathing device 20 are independent and do not interfere with each other. In this application, the slot structure 132 is not limited to the arc-shaped tubular structure disclosed in this application; it can be a claw structure, a tubular structure with a rectangular cross-section, etc. Any concept that can rotatably hold the breathing device 20 falls within the protection scope of this application.

[0072] Figure 7 This is a perspective view of a third specific embodiment of the guiding device according to this application. Figure 8 This is a three-dimensional diagram of a third specific embodiment of the breathing device. Figure 7 The guide device 10 is preferably installed in such a way as Figure 8 The breathing device 20 shown is as follows: Figure 7 , Figure 8 , Figure 9As shown, compared with the first embodiment, the occlusal body 11 and the nasal airway connection structure 14 are detachably fixed together without a stop 12. The breathing device 20 is also detachably installed at the gas outlet 142 of the nasal airway connection structure 14. In the second embodiment, the endoscope operation port 111 and the ventilation path of the breathing device 20 are independent of each other and do not interfere with each other. This ensures that the endoscope operation can be completed well, and ensures that the oxygen and other gases inhaled by the breathing device 20 are not contaminated by the patient's oral secretions or vomit, thus ensuring the safety of the medical device and the patient's medical safety.

[0073] like Figure 8 As shown, the breathing device 20 includes a breathing trachea 21 for connecting to a gas source and two nasal intubations 22, with the nasal intubations 22 directly connected to the breathing trachea 21 to allow breathing.

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

[0075] Specifically, the breathing tube 21 and the nasal inlet tube 22 of the breathing device 20 are separate. The breathing tube 21 is connected to the gas inlet 141 of the nasal airway connection structure 14 in gas communication, and the nasal inlet tube 22 is connected to the gas outlet 142 of the nasal airway connection structure 14 in gas communication. In this way, the length of the breathing tube 21 can be appropriately increased to accommodate other structures, such as providing a functional hole 211 or providing a thread at the end of the breathing tube 21.

[0076] exist Figure 1 In the first embodiment, the radial expansion part 221 is made of a material with shape memory and elasticity. In this embodiment, the radial expansion part 221 is an inflatable, deflated and gas-holding airbag. The airbag is a low-pressure airbag. After the nasal intubation tube 22 is adjusted to a suitable position in the patient's nasal cavity, an appropriate amount of gas is inflated into the airbag so that the airbag adheres tightly to the patient's nasal mucosa to achieve a sealing effect, thus isolating the external air from the breathing device 20 and ensuring that the gas inhaled by the patient is not contaminated by the external air.

[0077] In this specific embodiment, to accommodate the spatial relationship between the patient's oral and nasal cavities, the nasal intubation tube 22 is an adjustable and flexible tube. This allows the breathing device 20 to be suitable for patients with different body shapes and genders. During use, the nasal intubation tube 22 is first adjusted to a suitable length, extending 5mm-10mm into the nasal cavity. During insertion, the nasal intubation tube 22 is appropriately bent to ensure it aligns with the tilt of the patient's nasal cavity, thus improving patient comfort.

[0078] Figure 4 This is a perspective view of a second specific embodiment of the breathing device. Figure 4 As shown, the extension direction of the respiratory trachea 21 is perpendicular to the extension direction of the nasal trachea 22. The air from the air source does not rush directly into the patient's nasal cavity, but instead enters the nasal trachea 22 after a 90-degree bend in the respiratory trachea 21, and then enters the patient's nasal cavity. This 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 the breathing device, as shown below. Figure 3 As shown, the ventilation path of the breathing device 20 can also be provided with a functional port 211 for connecting to the air paths of various medical devices.

[0080] In a specific embodiment of this application, the functional hole 211 is designed to be selectively closed or open. A ventilation valve is provided at the functional hole 211, and the opening degree of the ventilation valve is adjustable. In this specific embodiment, the breathing tube 21 and the nasal inlet tube 22 of the breathing device 20 are separate units. The breathing tube 21 is connected in gas communication with the gas inlet 141 of the nasal airway connection structure 14, and the nasal inlet tube 22 is connected in gas communication with the gas outlet 142 of the nasal airway connection structure 14. This allows the length of the breathing tube 21 to be appropriately increased to accommodate other structures, such as providing the functional hole 211 or providing threads at the end of the breathing tube 21. The guidance and breathing system of this application also includes a respiratory monitoring device 30, which can be connected via a functional port 211. The respiratory monitoring device 30 has a pressure sensor for detecting airflow pressure within the breathing device 20 and / or a flow sensor for detecting airflow resistance data and / or a sensor for detecting carbon dioxide concentration. It can monitor the patient's vital signs in real time, such as the patient's pressure waveform or end-tidal carbon dioxide concentration waveform. When needed, it can rapidly increase the oxygen input pressure and the suction force for carbon dioxide extraction to ensure the user's blood oxygen saturation is above 90%. In this specific embodiment, the end of the breathing tube 21 is provided with a standard external thread, which can be used with other medical devices such as ventilators to help the patient inhale oxygen and expel carbon dioxide.

[0081] Figure 12 This is a schematic diagram of the guidance and breathing system according to the second embodiment. Compared with the first embodiment, the nasal intubation tube 22 is replaced with a flexible and adjustable tube. This makes the breathing device 20 suitable for patients with different body shapes and genders. When using it, first adjust the nasal intubation tube 22 to a suitable length so that it penetrates 5mm-10mm into the nasal cavity. During the insertion of the nasal intubation tube 22, bend it appropriately to ensure that the nasal intubation tube 22 matches the tilt direction of the patient's nasal cavity, thereby improving the patient's comfort.

[0082] In a specific embodiment of this application, the length of the stop 12 from the end face of the oral cavity end 112 is set to 20mm-30mm. This length of the inlet range ensures that the patient will not feel a strong foreign body sensation, and also makes the end face of the oral cavity end 112 of the endoscope operation port 111 as close as possible to the patient's pharynx. When the operator inserts the endoscope tube into the patient's oral cavity, the operating environment for a long distance is the endoscope operation port 111 with a hard and smooth inner wall, allowing the tube to smoothly pass through the oral cavity and enter the patient's pharynx, greatly reducing the difficulty of inserting the endoscope.

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

[0084] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this 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 way without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0086] Furthermore, various different embodiments of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed by this utility model.

Claims

1. Guidance and breathing systems used for gastrointestinal endoscopy, including: A guiding device (10) comprising an occlusal body (11) for placement in the oral cavity, the occlusal body (11) having an endoscopic operating port (111) communicating with the oral cavity; and A breathing device (20) includes a ventilation path communicating with a nasal cavity; The endoscope operation port (111) is directly exposed to the external environment, and the ventilation path of the endoscope operation port (111) and the breathing device (20) are independent of each other and do not interfere with each other.

2. The guidance and breathing system for gastrointestinal endoscopy according to claim 1, characterized in that, The guiding device (10) and the breathing device (20) are separate, independent devices; or The guiding device (10) is integrated with the breathing device (20), and the guiding device (10) and the breathing device (20) are integrally manufactured or detachably assembled together.

3. The guidance and breathing system for gastrointestinal endoscopy according to claim 1, characterized in that, In use, apart from the endoscope operation port (111), there are no other openings or structures through which the digestive tract endoscope passes.

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

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

6. The guidance and breathing system for gastrointestinal endoscopy according to claim 5, characterized in that, The bite body (11) is provided with a stop (12) for abutting against the lips on the outside of the mouth during use. The stop (12) is provided with the auxiliary operation through hole (123) near the mouth. The stop (12) is an arc-shaped plate.

7. The guidance and breathing system for gastrointestinal endoscopy according to claim 6, characterized in that, The guiding device (10) further includes a mounting structure (13), on which the breathing device (20) is detachably and rotatably mounted; The mounting structure (13) includes a bracket (131) disposed on the surface of the stop (12) near the nasal cavity, the bracket (131) having an open slot structure (132) for mounting the breathing device (20).

8. The guidance and breathing system for gastrointestinal endoscopy according to claim 1, characterized in that, The guiding device (10) includes a nasal airway connection structure (14) fixedly mounted on the bite body (11). The nasal airway connection structure (14) includes a gas inlet (141) and a gas outlet (142) communicating with the gas inlet (141). The gas inlet (141) is used to connect to a gas source, and the gas outlet (142) is used to connect to a breathing device.

9. The guidance and breathing system for gastrointestinal endoscopy according to claim 1, characterized in that, The breathing device (20) includes: A breathing trachea (21) for connecting to a gas source and two nasal intubations (22), the nasal intubations (22) being connected to the breathing trachea (21) to allow breathing; The end of the nasal trachea (22) is provided with a flexible radial expansion portion (221), the outer periphery of which is in sealed contact with the nasal mucosa; The radial expansion portion (221) is made of a material with shape memory and elasticity or is an airbag that can be inflated, deflated and held with gas; The nasal inlet tube (22) is an adjustable and / or flexible tube; The end of the breathing trachea (21) is threaded; and / or The extension direction of the respiratory trachea (21) is perpendicular to the extension direction of the nasal trachea (22).

10. The guidance and breathing system for gastrointestinal endoscopy according to claim 9, 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 trachea (22), and the functional hole (211) is designed to be closed or opened. The functional hole (211) is equipped with a vent valve, the opening of which is adjustable; The functional hole (211) is connected to a respiratory monitoring device (30), which is connected to the ventilation path of the breathing device (20) and is used to monitor respiratory information in real time.

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