Endoscope mask

Abstract

The utility model relates to an inner mirror mask, cover shell, have for the gas supply connecting pipe of intercommunication cover shell inside and outside, the cover shell has the recessed recess, the bottom wall of recess sets up the sealing cooperation hole through cover shell inside and outside, and this sealing cooperation hole is used for supplying endoscope catheter to pass through, the cover plate is installed in the recess, the support hole that the cover plate is provided for endoscope catheter to pass through, the surface of support hole has sliding layer, is made of polyethylene, polyvinyl chloride, polypropylene, polycarbonate, polystyrene, ABS plastic, nylon, polytetrafluoroethylene or ultrahigh molecular weight polyethylene.

Description

Technical Field

[0001] This utility model relates to a medical device, specifically an endoscope mask. Background Technology

[0002] With the development of medical technology, endoscopy can diagnose inflammation, ulcers, tumors in the digestive tract, and lesions in the hepatobiliary and pancreatic duct systems. During endoscopy, patients are anesthetized, which often affects spontaneous breathing. Therefore, an endoscope mask is used to deliver anesthetic gas, especially in cases of respiratory depression where rapid high-concentration oxygenation is needed. This endoscope mask has a sealing orifice, typically a retractable hole made of silicone or rubber, for the passage of the endoscope catheter and for sealing the catheter during resuscitation. Clinically, existing catheters are usually made of rubber and silicone. In actual operation, the contact between the catheter and the sealing orifice surface results in significant frictional resistance, severely affecting catheter delivery and other maneuvers. The molecular structures of silicone and rubber exhibit a certain degree of adhesion; the microstructure of their surfaces may increase the actual contact area, leading to increased adhesion and consequently, increased frictional resistance. The high elasticity and good compressive strength of the materials themselves may result in microscopic cracks and protrusions on the surface; these uneven surface structures increase frictional resistance. Elasticity makes them prone to deformation under external forces; this deformation increases the contact area between the rubber and other materials, thus increasing friction. Increased pressure strengthens the interaction forces between the contact surfaces, further increasing friction. Excessive deformation may also increase the microscopic unevenness of the contact surface, further increasing friction. Existing endoscope catheters and endoscope masks have sealing holes with significant frictional resistance, resulting in considerable resistance during operation and hindering rapid insertion and manipulation of the endoscope catheter. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an endoscope mask that has a simple and compact structure, reduces or even eliminates the frictional resistance between the endoscope catheter and the endoscope mask, and facilitates the rapid insertion and manipulation of the endoscope catheter.

[0004] The purpose of this utility model is achieved as follows: an endoscope mask, characterized in that it comprises: The housing has an air supply connection pipe for connecting the inside and outside of the housing. The housing has a concave cavity, and the bottom wall of the cavity is provided with a sealing fit hole that connects the inside and outside of the housing. The sealing fit hole is used for the endoscope catheter to pass through. A cover plate is installed in the recess, and the cover plate is provided with a support hole for the endoscope catheter to pass through. The surface of the support hole has a sliding layer, which is made of polyethylene, polyvinyl chloride, polypropylene, polycarbonate, polystyrene, ABS plastic, nylon, polytetrafluoroethylene or ultra-high molecular weight polyethylene.

[0005] The inner wall of the cavity is cylindrical or conical.

[0006] The outer edge of the cover plate is connected to an outward flange, and the outer peripheral wall of the outward flange is connected to the inner wall of the recess.

[0007] The outer edge of the cover plate is provided with a notch, and the outer flange is provided with a groove that communicates with the notch.

[0008] The cover plate is provided with an inwardly flanged hole, which forms a support hole.

[0009] The two ends of the support hole are provided with arc-shaped chamfers.

[0010] The outer peripheral wall of the outward-flared edge is provided with arc-shaped protrusions, and the outward-flared edge and the cover plate are integrally formed. The sliding layer and the cover plate are integrally formed.

[0011] The recess is equipped with a rigid catheter seat. The bottom wall of the recess has a through mounting hole. The mounting hole engages with the annular groove on the outer periphery of the catheter seat. Both the catheter seat and the diaphragm are made of silicone rubber. The catheter seat has a fixing hole. A flexible diaphragm is placed inside the fixing hole. The upper and lower edges of the diaphragm are closed and fixed to the catheter seat. The catheter seat and the diaphragm form an annular filling chamber. The outer surface of the diaphragm arches towards the center of the fixing hole to form a sealing fit hole for the endoscope catheter to pass through. The periphery of the filling chamber has a connection hole that communicates with the outside. The connection hole is connected to an inflation tube.

[0012] The sidewall of the recess is provided with a recessed groove, and the two sidewalls of the groove converge and extend from the top of the groove to the bottom of the groove.

[0013] The gas supply connection pipe is fitted with an inner pipe connector. The outer wall of the inner pipe connector is sealed to the outwardly turned connection part. The outer edge of the connection part is sealed to the inner wall of the gas supply connection pipe. The inner pipe connector has an inner hole for communicating the inner and outer spaces of the housing. An outwardly opening annular groove is formed between the outer peripheral wall of the inner pipe connector and the inner peripheral wall of the gas supply connection pipe. The annular groove is used for inserting the gas supply pipe.

[0014] The advantages of adopting the above solution are as follows: the cover provides a positive pressure space by covering the mouth and nose. The bottom of the recess has a sealing hole that connects the inside and outside of the housing. This sealing hole forms a sealing structure when it is necessary to seal the periphery of the endoscopic catheter. The diameter of the sealing hole is adjustable; when the diameter is reduced, it can seal the periphery of the endoscopic catheter, further improving the sealing performance of the internal space of the housing. The recess allows the sealing hole to protrude outwards at a lower height, bringing it closer to the patient's mouth. This facilitates quick insertion of the endoscopic catheter through the sealing hole into the mouthpiece or directly into the patient's mouth. Because endoscopic catheters have a certain degree of flexibility, when the distance between the sealing hole and the mouthpiece or mouthpiece is large, the end of the endoscopic catheter extending beyond the sealing hole has significant deflection during insertion. As the distance increases, this deflection gradually increases, sometimes making it impossible to align with the mouthpiece. This invention shortens the distance between the mouthpiece and the sealing hole, facilitating the insertion of the endoscopic catheter. By creating a recessed cavity, a mounting position for the cover plate is provided. Conventional endoscope masks have a raised outer wall that covers the patient's mouth and nose, making it impossible to provide a mounting position for the cover plate. This invention provides a mounting position for the cover plate through a recessed inner wall. Using this invention, the sealing hole maintains a large diameter during operation, facilitating the insertion and manipulation of the endoscopic catheter. During insertion and manipulation, the catheter is supported by the support hole, reducing or eliminating the contact area and pressure between the catheter and the sealing hole, significantly reducing the resistance felt during catheter movement. Its structure is simple and compact, allowing for rapid insertion of the endoscopic catheter and convenient operation.

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cover plate's installation structure; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 1 A schematic diagram of the structure of the middle cover.

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the cover plate.

[0018] In the attached diagram, 10 is the endoscope catheter, 100 is the housing, 101 is the slot, 110 is the air supply connection tube, 120 is the recess, 121 is the bottom wall, 130 is the catheter seat, 131 is the diaphragm, 140 is the mounting hole, 150 is the annular groove, 200 is the cover plate, 201 is the notch, 202 is the protruding rib, 210 is the support hole, 211 is the sliding layer, 220 is the outward flange, 221 is the groove, 230 is the inward flange, 1101 is the inner tube connector, 1102 is the connecting part, 1103 is the inner hole, 1104 is the annular groove, 1201 is the inner circumferential wall surface, 1211 is the sealing mating hole, 1302 is the fixing hole, 1303 is the filling chamber, 1304 is the air inlet tube, and 2101 is the arc-shaped chamfer. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms center, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, and outer, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, the terms first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as first and second can be used to explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, multiple means two or more. It should be noted that in practical applications, due to limitations in equipment accuracy or installation errors, absolute parallelism or perpendicularity is difficult to achieve. The descriptions of vertical, parallel, or unidirectional in this application are not absolute limitations, but rather indicate that vertical or parallel structural settings can be achieved within a preset error range, and the corresponding preset effects can be achieved. In this way, the technical effects of the defined features can be maximized, and the corresponding technical solutions can be easily implemented, thus having high feasibility.

[0021] In the description of this specification, the references to the terms "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples. See Figures 1 to 5 One embodiment of an endoscope mask includes a housing 100 and a cover plate 200. The housing 100 can be made of plastic, but is preferably made of a transparent material to facilitate observation during clinical procedures. An annular sealing element is provided at the edge of the open end of the housing 100. This sealing element can be an annular airbag or an annular soft pad with a direction consistent with the lower edge of the housing 100. The sealing element improves the fit, airtightness, and comfort of the endoscope mask to the face.

[0022] The housing 100 has a gas supply connection pipe 110 for connecting the inside and outside of the housing 100, through which gas or oxygen can be supplied. The housing 100 has a concave cavity 120, and the bottom wall 121 of the cavity 120 is provided with a sealing fitting hole 1211 that penetrates the inside and outside of the housing 100. The inner peripheral wall surface 1201 of the cavity 120 can be cylindrical or conical to avoid stress concentration and facilitate manufacturing. The cavity 120 is used to bring the sealing fitting hole 1211 close to the patient's mouth. Because the cavity 120 is located on a raised portion, the actual height of the upper sealing fitting hole 1211 of the cavity 120 is lower than that of the sealing fitting hole 1211 on the housing 100 without a cavity 120, so that the sealing fitting hole 1211 is closer to the patient's mouth. The diameter of the sealing fitting hole 1211 is adjustable, and this sealing fitting hole 1211 is used for the passage of an endoscopic catheter. A cover plate 200 is installed in the recess 120. The cover plate 200 is provided with a support hole 210 for the endoscope catheter to pass through. The surface of the support hole 210 has a sliding layer 211. The sliding layer 211 is made of polyethylene, polyvinyl chloride, polypropylene, polycarbonate, polystyrene, ABS plastic, nylon, polytetrafluoroethylene or ultra-high molecular weight polyethylene. It has high hardness, no adhesion to the endoscope catheter, effectively supports the endoscope catheter, and has low resistance to the endoscope catheter. The two ends of the support hole 210 are provided with arc-shaped chamfers 2101. By providing arc-shaped chamfers 2101, the catheter can be guided. At the same time, the arc structure can avoid scratching or damaging the outer wall of the endoscope catheter.

[0023] Understandably, the cover 100 covers the mouth and nose to provide positive pressure space. The bottom of the recess 120 has a sealing hole 1211 that runs through the inside and outside of the cover 100. The sealing hole 1211 forms a sealing structure when it is necessary to seal the periphery of the endoscopic catheter. The diameter of the sealing hole 1211 is adjustable. When the diameter is reduced, it can achieve a tight seal on the periphery of the endoscopic catheter, further improving the sealing performance of the internal space of the cover 100. The recess 120 can reduce the outward bulge height of the sealing hole 1211, bringing it closer to the patient's mouth. This facilitates the quick insertion of the endoscopic catheter through the sealing hole 1211 into the mouthpiece or directly into the patient's mouth during endoscopic catheter insertion. Because endoscopic catheters have a certain degree of flexibility, when the distance between the sealing hole 1211 and the mouthpiece or mouth is large, the end of the endoscopic catheter extending out of the sealing hole 1211 has a large deflection when inserted. As the distance increases, the deflection gradually increases, and it may even be impossible to align with the mouthpiece. This invention shortens the distance between the mouthpiece and the sealing hole 1211, facilitating the insertion of the endoscopic catheter. By providing the recess 120, the installation of the cover plate 200 is also provided. Conventional endoscopic masks have an entire raised outer wall that covers the patient's mouth and nose, making it impossible to provide a position for the cover plate 200. This invention provides a position for the cover plate 200 through the recessed inner wall. This invention allows for the sealing hole 1211 to maintain a large diameter during operation, facilitating the insertion and manipulation of the endoscopic catheter. During insertion and manipulation, the catheter is supported by the support hole 210, reducing or eliminating the contact area and pressure between the catheter and the flexible sealing hole 1211, significantly reducing resistance during catheter movement. Its simple and compact structure allows for rapid insertion of the endoscopic catheter and facilitates its manipulation.

[0024] In some embodiments, the outer edge of the cover plate 200 has an outward flange 220, and the outer peripheral wall of the outward flange 220 is connected to the inner wall of the recess 120. The connection can be made by adhesive, snap-fit, thread, or tightening. The connection between the outward flange 220 and the inner wall of the recess 120 allows the cover plate 200 to be positioned, preventing it from flipping or tilting within the recess 120, aligning the support hole 210 with the sealing mating hole 1211, and providing a larger connection area for the cover plate 200, thus making the connection structure more stable. When the inner peripheral wall 1201 of the recess 120 is cylindrical or conical, and the outer peripheral wall of the outer flange 220 is also cylindrical or conical; preferably, the inner side of the recess 120 is conical, and the outer peripheral wall of the outer flange 220 is cylindrical. When the inner side wall of the recess 120 is conical, it facilitates the assembly of the detachable connection structure of the guide seat 130 with the sealing mating hole 1211. Furthermore, as the outer flange 220 penetrates deeper into the recess 120, it can expand and tighten within the recess 120, achieving rapid fixation without the need for auxiliary tools or materials. The outer flange 220 can be integrally formed with the cover plate, simplifying the manufacturing process, saving costs, and exhibiting high precision and good consistency.

[0025] In some embodiments, a notch 201 is provided on the circumference of the cover plate, and a groove 221 communicating with the notch 201 is provided on the outer flange 220. The notch 201 and the groove 221 form a contraction joint. By providing the notch 201 and the groove 221, the outer circumference of the cover plate 200 can have excellent elastic deformation capability, allowing the cover plate 200 to contract centripetally under stress, facilitating installation and pressing against the inner wall of the recess 120. In some embodiments, the cover plate 200 is provided with an inner flange hole, which forms a support hole 210. The inner flange hole provides a deeper support hole 210, and the inner flange has a large contact area with the guide tube, which can avoid scratching or damaging the outer wall of the endoscope guide tube. The inner flange 230 can be integrally formed with the cover plate body, which is simple to manufacture, saves costs, and has high precision and good consistency.

[0026] In some embodiments, the outer peripheral wall of the outward flange 220 is provided with an arc-shaped protrusion 202 cover plate plastic part to increase the local thickness, thereby improving its strength and rigidity in the stress area, and ensuring that the snap-fit ​​position is always at the protrusion 202 position; the sliding layer 211 is integrally formed with the cover plate 200, that is, the cover plate 200 and the sliding layer 211 are made of the same material. Integral forming simplifies the manufacturing process, saves costs, and also provides high precision and good consistency.

[0027] In some embodiments, the adjustable aperture can be achieved based on a passive adjustment structure or an active adjustment structure. In the passive adjustment structure, the sealing fitting hole 1211 can be provided on a plug made of an elastic material, which may include a plastic elastomer material. The elastic plug is sealed to the recess 120. If the connection method is a split connection, the elastic plug is directly installed in the mounting hole 140 provided in the recess 120. The central hole of the plug is elastic, and the central hole forms the sealing fitting hole 1211. When endoscope catheters of different specifications pass through the sealing fitting hole 1211, the sealing fitting hole 1211 deforms based on the elasticity of the sealing fitting hole 1211 itself, thereby sealing the peripheral wall of endoscope catheters of different diameters.

[0028] Specifically, in this embodiment, an active adjustment structure is provided to achieve adjustable aperture. In this embodiment, the recess 120 is provided with a rigid catheter seat 130, the catheter seat 130 is provided with a fixing hole 1302, and a flexible diaphragm 131 is provided in the fixing hole 1302. The upper and lower edges of the diaphragm 131 are closed and fixed on the catheter seat 130. The catheter seat 130 and the diaphragm 131 form an annular filling chamber 1303. The outer surface of the diaphragm 131 arches towards the center of the fixing hole 1302 to form a guide for the endoscope. The tube passes through a sealing fitting hole 1211. The periphery of the filling chamber 1303 is provided with a connection hole communicating with the outside, and the connection hole is connected to the inflation tube 1304. With this structure, the desired amount of inflation can be filled into the filling chamber 1303 through the inflation tube 1304, causing the diaphragm 131 to bulge and elastically deform, thereby making the sealing fitting hole 1211 formed by the diaphragm 131 reach the desired aperture. This allows for sealing of the outer wall of endoscopic catheters of different diameters. Since the degree of bulging and elastic deformation of the diaphragm 131 can be adjusted according to different inflation volumes, ... This design allows for sufficient pressure to be applied to the outer wall of even small endoscopic catheters, achieving a seal. For larger diameter catheters, the pressure can be reduced to maintain a suitable sealing pressure between the diaphragm 131 and the catheter, preventing excessive pressure between the catheter and the sealing hole 1211, which could cause the catheter to become stuck. This is particularly suitable for endoscopic catheter operations requiring a seal. Furthermore, this active adjustment structure can reduce or remove gas from the filling chamber 1303. The gas at 1303 causes the diaphragm 131 to approach or completely adhere to the side wall of the fixing hole 1302 under atmospheric pressure, creating a larger gap between the diaphragm 131 and the outer wall of the endoscopic catheter. This reduces the support and restriction of the sealing hole 1211 on the endoscopic catheter, facilitating catheter insertion and rapid insertion of the mouthpiece. Additionally, when respiratory depression is not clinically present, a gap between the diaphragm 131 and the endoscopic catheter can be maintained for easier catheter manipulation after insertion. Furthermore, negative pressure can be created within the filling chamber to enlarge the diameter of the sealing hole 1211, even significantly exceeding the diameter of the support hole. During routine examinations, a larger gap is maintained between the diaphragm 131 and the endoscopic catheter for easier operation.

[0029] The catheter seat 130 can be integrated with the recess 120 or it can be a separate structure. Further, in this embodiment, the bottom of the recess 120 is provided with a through mounting hole 140, which engages with the annular groove 150 on the outer periphery of the catheter seat 130. Both the catheter seat 130 and the diaphragm 131 are made of silicone rubber. Using silicone rubber gives the catheter seat 130 a certain degree of elasticity, making it easy to press. Simultaneously, the diaphragm 131 can be integrally formed with the catheter seat 130. Of course, the integral forming of the diaphragm 131 may include integrally forming the connection between the upper edge and / or lower edge of the diaphragm 131, so that the diaphragm 131 can be integrally formed with the catheter seat 130. The diaphragm 131 is integrally formed. This includes the connection between the upper and lower edges of the diaphragm 131. Alternatively, the upper or lower edges that are not integrally formed can be connected by adhesive bonding. Since both the guide tube seat 130 and the diaphragm 131 are made of silicone rubber, the two materials used in the silicone bonding process have excellent adhesive properties, resulting in high connection strength and more reliable sealing at the bonded joint. In this embodiment, the wall thickness of the fixing hole 1302 is different from the thickness of the diaphragm 131. When both the guide tube seat 130 and the diaphragm 131 are made of silicone rubber, the guide tube seat 130 has relative rigidity to the diaphragm 131. In this embodiment, the inflation tube 1304 can be connected to the air outlet end of the balloon, and an air inlet check valve is connected to the air inlet end of the balloon for easy connection to the inflation source and to provide a check valve effect. In this embodiment, since an inflation tube 1304 is provided, and the inflation tube 1304 is located at the sealing mating hole 1211, the inflation tube 1304 may interfere with or interfere with the operation of the endoscope catheter. In order to reduce the interference of the inflation tube 1304, a recessed groove 101 is provided on the side wall of the recess 120. The two side walls of the groove 101 converge and extend from the inner groove opening to the outer groove opening, and the two side walls of the groove 101 converge and extend from the top of the groove to the bottom of the groove. This structure provides a larger swing angle at the downstream end of the inflation tube 1304, facilitating locking while avoiding large curvature bends and abrupt transitions at the connection point between the inflation tube 1304 and the connecting hole, ensuring reliable connection. The two side walls of the locking groove converge and extend from the top to the bottom of the groove. This structure facilitates rapid insertion of the inflation tube 1304 into the locking groove, improves the fault tolerance of the top opening of the groove, reduces the locking accuracy of the inflation tube 1304, and allows for quick locking. As the inflation tube 1304 moves towards the bottom of the groove, it is gradually locked in place. The locking of the inflation tube 1304 within the groove guides its outward extension, ensuring that the section of the inflation tube 1304 adjacent to the sealing hole 1211 is fixed, preventing interference with endoscopic examination.

[0030] To meet the diverse oxygen supply needs in clinical practice, in this embodiment, an inner tube connector 1101 is fitted inside the gas supply connecting pipe 110. The outer wall of the inner tube connector 1101 is sealed to the outwardly turned connecting part 1102. The outer edge of the connecting part 1102 is sealed to the inner wall of the gas supply connecting pipe 110. The inner tube connector 1101 has an inner hole 1103 for connecting the inner and outer spaces of the housing 100. An outwardly opening annular groove 1104 is formed between the outer peripheral wall of the inner tube connector 1101 and the inner peripheral wall of the gas supply connecting pipe. The annular groove 1104 is used for inserting the gas supply pipe. When connecting to larger diameter tubes, such as those on resuscitation balloons or anesthesia ventilators, a gas supply connector is used. The airflow folds back within the annular groove 1104 and enters the inner hole 1103 of the inner tube connector 1101, thus entering the internal space of the housing 100. When connecting to smaller tubes, such as those connected to nasal oxygen supply connectors, the inner tube connector 1101 is inserted into the oxygen supply connector, and the airflow passes directly through the inner tube connector 1101 into the endoscope mask. When using this structure to connect to any tube, it is not necessary to seal the other tube.

[0031] Using the above method, when performing endoscopic examinations on patients, the cover 100 is first placed over the patient's mouth and nose. The endoscopic catheter is then inserted through the support hole 210 and the sealing mating hole 1211. The endoscopic catheter can then be quickly inserted into the mouthpiece. The endoscopic catheter is then delivered until it reaches the desired position. The support hole 210 supports the endoscopic catheter 10, reducing or avoiding its contact area and contact pressure with the sealing mating hole 1211, and significantly reducing the resistance felt by the endoscopic catheter 10 during movement.

[0032] Of course, when using the sealing hole 1211 formed by the diaphragm 131, the air in the filling chamber 1303 can be extracted, making the diameter of the sealing hole 1211 larger, which facilitates the insertion of the endoscope catheter. During the endoscopy, the sealing hole 1211 can form a seal with the endoscope catheter, or a gap can be left between the sealing hole 1211 and the endoscope catheter for easy operation. Once the patient experiences respiratory depression, the endoscope catheter can be sealed first through the sealing hole 1211. The detachable cover plate can be removed from the recess, or the cover plate can remain in the corresponding position, and the diaphragm away from the cover plate can bulge. The cover plate can also limit the diaphragm from bulging outward. Then, using clinical resuscitation techniques, grasp the endoscopic mask and lift the patient's jaw to open the airway. Sufficient and high-concentration oxygen is supplied through the gas supply connection tube 110 to restore spontaneous breathing. Endoscopic examinations or treatments can continue under high-concentration oxygen supply. This method does not require removal of the endoscopic catheter, allowing for rapid patient resuscitation and reducing the medical risks associated with endoscopic examinations and treatments. In the absence of a fixation strap, the endoscopic mask can be manually fixed. During resuscitation, the endoscopic mask can be directly applied manually using resuscitation techniques without removing the endoscopic catheter beforehand. Alternatively, the endoscopic mask can be pre-fixed to the patient's face using a fixation strap to prevent displacement, reduce the amount of chest compressions required during resuscitation, and further ensure a tight seal.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An endoscope mask, characterized in that, include: The housing (100) has an air supply connection pipe (110) for connecting the inside and outside of the housing (100). The housing (100) has a recessed cavity (120). The bottom wall (121) of the recess (120) is provided with a sealing mating hole (1211) that connects the inside and outside of the housing (100). The sealing mating hole (1211) is used for the endoscope catheter to pass through. A cover plate (200) is installed in the recess (120). The cover plate (200) is provided with a support hole (210) for the endoscope catheter to pass through. The surface of the support hole (210) has a sliding layer (211). The sliding layer (211) is made of polyethylene, polyvinyl chloride, polypropylene, polycarbonate, polystyrene, ABS plastic, nylon, polytetrafluoroethylene or ultra-high molecular weight polyethylene. The inner peripheral wall (1201) of the recess (120) is cylindrical or conical. Wherein, the outer edge of the cover plate (200) is connected to the outer flange (220), and the outer peripheral wall of the outer flange (220) is connected to the inner wall of the recess (120); The recess (120) is provided with a rigid conduit seat (130), and the bottom wall (121) of the recess (120) is provided with a through mounting hole (140). The mounting hole (140) is engaged with the annular groove (150) on the outer periphery of the conduit seat (130). Both the conduit seat (130) and the diaphragm (131) are made of silicone rubber. The conduit seat (130) is provided with a fixing hole (1302), and a flexible diaphragm (131) is provided in the fixing hole (1302). The upper and lower edges of the diaphragm (131) are closed and fixed on the catheter seat (130). The catheter seat (130) and the diaphragm (131) form an annular filling chamber (1303). The outer surface of the diaphragm (131) arches towards the center of the fixing hole (1302) and forms a sealing fitting hole (1211) for the endoscope catheter to pass through. The periphery of the filling chamber (1303) is provided with a connection hole communicating with the outside. The connection hole is connected to the inflation tube (1304).

2. The endoscope mask according to claim 1, characterized in that: wherein, The outer edge of the cover plate (200) is provided with a notch (201), and the outer flange (220) is provided with a groove (221) that communicates with the notch (201).

3. The endoscope mask according to claim 1, characterized in that: The cover plate (200) is provided with an inner flange hole, which forms a support hole (210).

4. The endoscope mask according to claim 1 or 3, characterized in that: The two ends of the support hole (210) are provided with arc-shaped chamfers (2101).

5. The endoscope mask according to claim 1, characterized in that: The outer periphery of the flange (220) is provided with arc-shaped protrusions. The flange (220) and the cover plate (200) are integrally formed. The sliding layer (211) and the cover plate (200) are integrally formed.

6. The endoscope mask according to claim 1, characterized in that: The recessed groove (101) is provided on the side wall of the recess (120), and the two side walls of the groove (101) converge and extend from the top of the groove (101) to the bottom of the groove (101).

7. The endoscope mask according to claim 1, characterized in that: The gas supply connection pipe (110) is fitted with an inner pipe connector (1101). The outer wall of the inner pipe connector (1101) is sealed to the outwardly turned connection part (1102). The outer edge of the connection part (1102) is sealed to the inner wall of the gas supply connection pipe (110). The inner pipe connector (1101) has an inner hole (1103) for connecting the inner and outer spaces of the cover (100). The outer peripheral wall of the inner pipe connector (1101) and the inner peripheral wall of the gas supply connection pipe (110) form an outwardly opening annular groove (1104). The annular groove (1104) is used for inserting the gas supply pipe.

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