Mask with gastrointestinal channel

Abstract

The application relates to the field of medical masks, in particular to a mask with a gastrointestinal mirror channel, which comprises a mask main body, an oxygen supply assembly, a gastrointestinal mirror channel assembly, an anti-aspiration assembly and a sealing adjustment assembly. The oxygen supply assembly provides clean and controllable breathing support through a multi-layer filter membrane and a flow adjustment function; the gastrointestinal mirror channel assembly is designed with a flexible sealing sleeve and an elastic support strip, thereby ensuring air tightness and adaptability during gastrointestinal mirror operation; the anti-aspiration assembly effectively deals with vomiting reflex or gastric content reflux through an arc-shaped baffle and a drainage groove; and the sealing adjustment assembly improves the adhesion and stability of the mask by using an air bag. The application can simultaneously realize breathing support and gastrointestinal mirror operation, and takes into account the safety and comfort of patients, thereby providing a perfect solution for digestive endoscopy.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically a mask with a gastrointestinal endoscope channel. Background Technology

[0002] With the development of medical mask technology, various types of masks used for respiratory support, anesthesia, nebulization therapy, and protection have been widely used in clinical practice. However, in scenarios involving gastrointestinal endoscopy or treatment, existing mask products still struggle to meet the needs of simultaneous gastroscopy and colonoscopy procedures and respiratory management. Especially during gastroscopy and colonoscopy, patients often need to maintain a fixed position and receive continuous oxygen or anesthesia support. Traditional masks lack a dedicated channel for the endoscope to enter and exit, leading to frequent mask removal or adjustment during procedures. This not only affects the continuity of the procedure but may also increase the risk of cross-infection and reduce patient safety.

[0003] A search revealed a bronchoscopic protective mask with publication number CN115957414B. This mask features an interventional section that allows the bronchoscope to pass through the mask into the patient's nasal cavity via a one-way structure, preventing leakage of exhaled air during the procedure. It is also equipped with an oxygen supply unit and a filter to provide respiratory support and bioprotection. This design is suitable for bronchoscopic and other respiratory interventional procedures, possessing a certain degree of integration and protective function. However, its interventional section structure is designed for the upper respiratory tract bronchoscopic path; the channel position, angle, and size are all based on the nasal cavity-trachea route, making it unsuitable for the operational path of gastrointestinal endoscopes entering the esophagus and stomach from the mouth. Furthermore, this mask does not consider the potential vomiting reflex or gastric reflux during gastrointestinal endoscopy, lacks anti-aspiration structures, and cannot guarantee the patient's airway safety during gastrointestinal endoscopy.

[0004] A search revealed a surgical transesophageal echocardiography mask with publication number CN115153652B. This mask features a protective and clamping structure, facilitating the insertion of the transesophageal ultrasound probe into the patient's mouth and providing fixation and protection. Its design considers the probe's entry into the esophagus from the mouth, offering some guidance capability. However, this mask is primarily used for probe insertion and positioning; it lacks an independent, unobstructed, and sealed endoscope channel, and does not integrate oxygen supply or breathing gas pathways, thus failing to maintain effective respiratory support during gastroscopy and colonoscopy. Furthermore, the mask lacks an adaptive adjustment mechanism to endoscope movement, making it prone to displacement or seal failure during endoscope advancement or retraction, affecting safety and stability.

[0005] The aforementioned problems indicate that while existing medical masks have been used in respiratory interventional procedures or to assist in the insertion of specific probes, none have been systematically designed for the specific clinical needs of gastroscopy and colonoscopy. Current technology lacks an integrated mask device that can provide stable respiratory support, a dedicated passageway for gastroscopy and colonoscopy, and simultaneously ensure airway sealing, ease of operation, and patient safety. Therefore, this invention provides a mask with a gastroscopy / colonoscopy passageway to overcome the shortcomings of existing technology in the coordination of multimodal medical operations and meet the clinical need for simultaneous respiratory management and endoscopic procedures during gastroscopy and colonoscopy. Utility Model Content

[0006] This utility model relates to the field of medical masks, specifically a mask with a gastrointestinal endoscope channel. The mask includes a main body, with an oxygen supply assembly at the top. This assembly includes an air supply pipe fixedly installed at the top of the main body, with a gas filter unit connected to the end of the pipe. A regulating valve is located on the surface of the air supply pipe. A gastrointestinal endoscope access assembly is located in the middle of the main body, including an elliptical through-hole. A flexible sealing sleeve is nested inside the elliptical through-hole, and multiple sets of elastic support strips are evenly distributed on the inner wall of the flexible sealing sleeve. These elastic support strips are connected by hinges to form a telescopic structure. An anti-aspiration assembly is located on the outer side of the flexible sealing sleeve, including an arc-shaped baffle fixedly installed on the inner wall of the main body. Multiple drainage grooves are formed on the surface of the arc-shaped baffle, with a collection chamber connected to the end of each drainage groove. A drain port is located at the bottom of the collection chamber. A sealing adjustment assembly is located at the edge of the main body, including multiple airbags distributed around the mask. These airbags are connected by air ducts, with an inflation pump connected to the end of each air duct.

[0007] This invention utilizes a flexible sealing sleeve design to allow the endoscope to enter the esophagus and stomach from the mouth while maintaining the airtightness of the mask. The inner wall of the flexible sealing sleeve forms a stretchable structure with multiple sets of elastic support strips. The hinged connection between these strips allows the flexible sealing sleeve to adaptively adjust its shape according to the advancement or retraction of the endoscope, reducing interference with the operation. Furthermore, the elastic support strips are made of medical-grade silicone with high elasticity and a low coefficient of friction, ensuring smooth movement of the endoscope within the channel and preventing mask displacement or seal failure due to channel deformation.

[0008] This invention effectively addresses the vomiting reflex or reflux of gastric contents during gastroscopy and colonoscopy through the design of an anti-aspiration component. The surface of the arc-shaped baffle features multiple drainage channels arranged at an angle, with the end closer to the patient's mouth higher and the end further away lower, forming a natural fluid drainage path. A collection chamber connects to the end of each drainage channel, and a drain port is located at the bottom of the collection chamber. This drain port connects to an external negative pressure device via a flexible tube, thereby promptly draining refluxed gastric contents and reducing the risk of aspiration. The arc-shaped baffle is made of transparent medical-grade plastic, allowing medical personnel to easily observe the patient's oral cavity and throat.

[0009] This invention improves the fit and stability between the mask body and the patient's face through the design of a sealing adjustment component. Multiple airbags are evenly distributed along the edge of the mask body, connected by air delivery tubes. An air pump is connected to the end of the air delivery tubes, allowing the airbags to expand or contract by adjusting the pump pressure. The outer surface of the airbags has anti-slip textures to increase friction with the patient's skin and prevent the mask from shifting during gastroscopy and colonoscopy. Furthermore, a layer of medical-grade skin-friendly material is placed on the inner side of the airbags to reduce pressure on the patient's face and improve wearing comfort.

[0010] This invention provides stable respiratory support to patients through the design of its oxygen supply component. The end of the air supply tube is connected to a gas filter unit, which contains multiple layers of filter membranes: a pre-filter layer, a high-efficiency filter layer, and an activated carbon adsorption layer, used to remove particulate matter, bacteria, and odors from the air. A regulating valve is located on the surface of the air supply tube, and its knob is connected to a flow meter. Rotating the knob precisely controls the air flow rate to meet the respiratory needs of different patients. The outlet of the air supply tube is located at the top of the mask body, and a distributor is installed at the outlet to evenly distribute the gas inside the mask body, preventing excessive local airflow that could cause patient discomfort.

[0011] This invention addresses the shortcomings of existing face masks during gastroscopy and colonoscopy by combining the aforementioned technical means. The flexible sealing sleeve design adapts to the surgical path of the endoscope entering through the mouth; the hinged connection structure of the elastic support bar improves the adaptability of the channel, ensuring the mask's seal remains unaffected during the advancement or retraction of the endoscope; the anti-aspiration component, through its arc-shaped baffle and drainage groove design, effectively addresses the vomiting reflex or reflux of gastric contents, ensuring the patient's airway safety; the sealing adjustment component, through the expansion or contraction of the airbag, enhances the fit and stability of the mask to the patient's face; and the oxygen supply component, through multi-layer filtration membranes and flow regulation, provides clean and controllable respiratory support to the patient.

[0012] The technical solution of this utility model not only realizes the simultaneous performance of respiratory support and gastrointestinal endoscopy, but also takes into account the safety and comfort of patients, providing a more complete solution for digestive endoscopy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle.

[0015] Figure 3 This is a schematic diagram of the internal structure of the gas filtration unit of this utility model.

[0016] Figure 4 for Figure 2 A magnified diagram of region A.

[0017] The attached figures are labeled as follows:

[0018] 1. Mask body; 2. Air supply pipe; 3. Gas filter unit; 4. Regulating valve; 5. Flexible sealing sleeve; 6. Elastic support bar; 7. Arc-shaped baffle; 8. Drainage groove; 9. Liquid collection chamber; 10. Drainage port; 11. Airbag; 12. Air guide pipe; 13. Inflation pump; 14. Diverter. Detailed Implementation

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

[0020] Specific implementation examples are given below.

[0021] This invention provides a mask with a gastrointestinal endoscope channel, the overall structure of which is as follows: Figure 1 As shown, the layout includes the mask body 1 and its main components; the mask body 1 is a shell structure designed to fit the contours of the patient's face, made of medical-grade silicone material, which has a certain degree of flexibility and elasticity to adapt to different patients' facial shapes; the oxygen supply component, gastrointestinal endoscope channel component, anti-aspiration component and sealing adjustment component are all integrated on the mask body 1, and the connection and positional relationship between each component are closely matched to jointly realize the function of this utility model;

[0022] The oxygen supply assembly is located on the top of the mask body 1. The core component of the oxygen supply assembly is the air supply pipe 2. One end of the air supply pipe 2 is fixedly installed at the center of the top of the mask body 1 and communicates with the inside of the mask. The other end extends to the outside and connects to the gas filter unit 3. The gas filter unit 3 is equipped with a pre-filter layer, a high-efficiency filter layer and an activated carbon adsorption layer in sequence to remove particulate matter, bacteria and odors from the air. The surface of the air supply pipe 2 is equipped with a regulating valve 4. The knob of the regulating valve 4 is connected to a flow meter. The air supply flow can be precisely controlled by rotating the knob. A diverter 14 is installed at the outlet of the air supply pipe 2. The diverter 14 is located on the inner side of the top of the mask body 1 to evenly distribute the gas into the inside of the mask body 1 and avoid excessive local airflow that may cause discomfort to the patient. The various components of the oxygen supply assembly are assembled by threaded connection or snap-fit ​​fixation to ensure structural stability and easy disassembly and cleaning.

[0023] The gastrointestinal endoscope channel assembly is located in the middle of the mask body 1. Its core component is a flexible sealing sleeve 5, which is nested in an elliptical through hole in the center of the mask body 1, forming a channel through the mask body 1. Multiple sets of elastic support strips 6 are evenly distributed on the inner wall of the flexible sealing sleeve 5. The elastic support strips 6 are connected by hinges to form a telescopic structure. The elastic support strips 6 are made of medical-grade silicone material with high elasticity and low coefficient of friction. The hinge connection design allows the flexible sealing sleeve 5 to adaptively adjust its shape according to the advance or retraction of the gastrointestinal endoscope, reducing interference with the operation of the gastrointestinal endoscope. The outer edge of the flexible sealing sleeve 5 is fixed in the through hole of the mask body 1 by an annular groove. A sealing ring is set in the groove to enhance the airtightness of the connection. The bottom edge of the flexible sealing sleeve 5 is provided with an outwardly folded lip, which is in close contact with the inner wall of the mask body 1 to further prevent gas leakage.

[0024] The anti-aspiration component is located inside the mask body 1, close to the patient's oral cavity. The core component of the anti-aspiration component is an arc-shaped baffle 7, which is fixedly installed on the inner wall of the mask body 1. Multiple drainage channels 8 are formed on its surface. The drainage channels 8 are distributed at an angle, with the end closer to the patient's oral cavity being higher and the end further away from the oral cavity being lower, forming a natural liquid drainage path. The end of the drainage channel 8 is connected to a collection chamber 9, which is a hemispherical structure with a drain port 10 at the bottom. The drain port 10 is connected to an external negative pressure device through a hose to promptly drain refluxed gastric contents. The arc-shaped baffle 7 is made of transparent medical plastic, which allows medical staff to observe the patient's oral cavity and throat in real time. The arc-shaped baffle 7 is fixed to the inner wall of the mask body 1 with screws. The screw heads are covered with medical-grade sealing gaskets to prevent a decrease in airtightness due to the fixing components.

[0025] The sealing adjustment assembly is located at the edge of the mask body 1. Its core component is multiple airbags 11, which are evenly distributed around the mask body 1 and connected by air ducts 12. The end of the air ducts 12 is connected to an inflation pump 13. The outer surface of the airbags 11 is provided with anti-slip texture to increase friction with the patient's skin and prevent the mask from shifting during gastroscopy and colonoscopy. The inner side of the airbags 11 is provided with a layer of medical-grade skin-friendly material to reduce pressure on the patient's face and improve wearing comfort. The inflation pump 13 inflates the airbags 11 through the air ducts 12 and adjusts the inflation degree of the airbags 11 to adapt to the facial contours of different patients. The control panel of the inflation pump 13 is equipped with a pressure gauge and adjustment button for monitoring and adjusting the air pressure inside the airbags 11. The airbags 11 are connected by quick connectors for easy disassembly and replacement.

[0026] When using this invention for gastroscopy and colonoscopy, the mask body 1 is first placed on the patient's face. The sealing adjustment component is adjusted to ensure that the airbag 11 fits the patient's face perfectly, ensuring the mask's airtightness. Then, the oxygen supply component is activated, and an appropriate gas flow rate is set via the regulating valve 4. After being filtered by the gas filter unit 3, the gas is evenly distributed into the mask body 1 by the distributor 14, providing stable respiratory support for the patient. During the gastroscopy and colonoscopy procedure, the endoscope passes through the flexible sealing sleeve 5. The elastic support strip 6 adaptively adjusts its shape according to the advancement or retraction of the endoscope, maintaining the sealing performance of the flexible sealing sleeve 5. If the patient experiences a vomiting reflex or reflux of gastric contents, the liquid flows along the drainage groove 8 on the surface of the arc-shaped baffle 7 into the collection chamber 9, and then is discharged to the external negative pressure device through the drain port 10, effectively reducing the risk of aspiration. Throughout the entire procedure, medical personnel can observe the patient's oral cavity and pharynx in real time through the transparent arc-shaped baffle 7, ensuring operational safety.

[0027] This invention achieves simultaneous respiratory support and gastroscopy / colonoscopy through the close cooperation of the aforementioned components, overcoming the shortcomings of existing masks during gastroscopy / colonoscopy. The flexible sealing sleeve 5 is designed to adapt to the operating path of the gastroscopy / colonoscopy endoscope entering through the mouth, and the hinged connection structure of the elastic support bar 6 improves the adaptability of the channel, ensuring that the mask's sealing performance is not affected when the endoscope is advanced or withdrawn. The anti-aspiration component effectively addresses the vomiting reflex or gastric reflux problem through the design of the arc-shaped baffle 7 and the drainage groove 8, ensuring the safety of the patient's airway. The sealing adjustment component improves the fit and stability of the mask to the patient's face through the expansion or contraction of the airbag 11. The oxygen supply component provides clean and controllable respiratory support to the patient through multi-layer filter membranes and flow regulation function.

[0028] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios;

[0029] In practice, the mask body 1 is first placed on the patient's face, and the airbag 11 in the sealing adjustment component is adjusted to ensure a tight fit with the patient's face. The air pump 13 injects an appropriate amount of gas into the airbag 11 through the air tube 12. After the airbag 11 inflates, it applies pressure evenly to the contours of the patient's face, thereby forming a good seal. The anti-slip texture on the outer surface of the airbag 11 and the medical-grade skin-friendly material on the inner side play a key role in this process. The former increases friction to prevent displacement, and the latter reduces pressure and improves comfort. Through the pressure gauge and adjustment button on the air pump 13, medical staff can precisely control the air pressure in the airbag 11 according to the specific facial shape of the patient, ensuring the stability of the mask while avoiding excessive pressure.

[0030] The oxygen supply assembly is then activated, and the gas filtration unit 3 is turned on. External air is filtered sequentially through the primary filter layer, the high-efficiency filter layer, and the activated carbon adsorption layer before entering the air supply pipe 2. The regulating valve 4, through the knob and the flow meter, sets an appropriate air supply flow rate. The filtered clean gas is evenly distributed into the mask body 1 through the distributor 14, providing stable respiratory support for the patient. The design of the distributor 14 avoids discomfort that may be caused by excessive local airflow, while ensuring uniform gas distribution to maintain the patient's breathing stability.

[0031] When the gastroscopy / colonoscopy begins, the doctor inserts the endoscope through the flexible sealing sleeve 5. The elastic support strip 6 on the inner wall of the flexible sealing sleeve 5 is connected by hinges to form a telescopic structure, which can adaptively adjust its shape during the advancement or retraction of the endoscope. The elastic support strip 6 is made of medical-grade silicone material with high elasticity and low coefficient of friction. Its hinge connection allows the flexible sealing sleeve 5 to change flexibly with the movement of the endoscope while maintaining the sealing performance of the channel. The annular groove on the outer edge of the flexible sealing sleeve 5 and the folded lip at the bottom further enhance the airtightness and prevent gas leakage.

[0032] If the patient experiences vomiting or reflux of gastric contents during the examination, the fluid flows along the drainage channels 8 on the surface of the arc-shaped baffle 7. The drainage channels 8 are distributed at an angle, with the end closer to the patient's mouth being higher and the end further away from the mouth being lower. This design forms a natural fluid drainage path. The fluid flows into the collection chamber 9 through the drainage channels 8 and is finally discharged to the external negative pressure device through the drain port 10, thereby effectively reducing the risk of aspiration. The arc-shaped baffle 7 is made of transparent medical plastic, which allows medical staff to observe the condition of the patient's mouth and throat in real time, ensuring operational safety.

[0033] Throughout the gastroscopy and colonoscopy procedure, all components work together to ensure the safety and effectiveness of the operation. The flexible sealing sleeve 5 is designed to fit the surgical path of the endoscope entering through the mouth, and the hinged connection structure of the elastic support bar 6 improves the adaptability of the channel, ensuring that the sealing of the mask body 1 is not affected when the endoscope is advanced or withdrawn. The anti-aspiration component effectively addresses the vomiting reflex or gastric reflux problem through the design of the arc-shaped baffle 7 and the drainage groove 8, ensuring the safety of the patient's airway. The sealing adjustment component improves the fit and stability of the mask to the patient's face through the expansion or contraction of the airbag 11, while the oxygen supply component provides the patient with clean and controllable respiratory support through multi-layer filter membranes and flow regulation function.

[0034] The above steps, combined with the functions of each component, achieve the technical objective of this utility model, namely, to balance respiratory support, sealing, safety, and patient comfort during gastroscopy and colonoscopy. Through the implementation of the above specific application scenarios, this utility model has fully verified its feasibility and superiority in actual medical operations.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mask with a gastrointestinal endoscope channel, characterized in that: The mask includes a mask body (1), an oxygen supply assembly on the top of the mask body (1), the oxygen supply assembly including an air supply pipe (2) fixedly installed on the top of the mask body (1), a gas filter unit (3) connected to the end of the air supply pipe (2), and a regulating valve (4) on the surface of the air supply pipe (2); a gastrointestinal endoscope channel assembly is provided in the middle of the mask body (1), the gastrointestinal endoscope channel assembly including an elliptical through hole opened in the center of the mask body (1), a flexible sealing sleeve (5) nested inside the elliptical through hole, and multiple sets of elastic support strips (6) evenly distributed on the inner wall of the flexible sealing sleeve (5), the elastic support strips (6) being connected by hinges. A retractable structure is formed; an anti-aspiration component is provided on the outside of the flexible sealing sleeve (5), the anti-aspiration component includes an arc-shaped baffle (7) fixedly installed on the inner wall of the mask body (1), the surface of the arc-shaped baffle (7) is provided with multiple sets of drainage grooves (8), the end of the drainage groove (8) is connected to a liquid collection chamber (9), and the bottom of the liquid collection chamber (9) is provided with a drain port (10); a sealing adjustment component is provided on the edge of the mask body (1), the sealing adjustment component includes multiple sets of airbags (11) distributed around the mask body (1), the airbags (11) are connected to each other through an air guide tube (12), and the end of the air guide tube (12) is connected to an air pump (13).

2. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The flexible sealing sleeve (5) has elastic support strips (6) evenly distributed on its inner wall, which are made of medical silicone material. The hinge connection between the elastic support strips (6) allows the flexible sealing sleeve (5) to adaptively adjust its shape according to the advance or retraction of the gastrointestinal endoscope.

3. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The drainage channels (8) on the surface of the arc-shaped baffle (7) are distributed in an inclined manner, with the end closer to the patient's mouth being higher and the end further away from the mouth being lower. The collection chamber (9) connected to the end of the drainage channel (8) is a hemispherical structure. The drain port (10) at the bottom of the collection chamber (9) is connected to an external negative pressure device through a hose.

4. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The outer surface of the airbag (11) is provided with anti-slip texture, and the inner side of the airbag (11) is provided with a layer of medical skin-friendly material. The airbags (11) are connected to each other by quick connectors. The control panel of the air pump (13) is provided with a pressure gauge and adjustment button.

5. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: A distributor (14) is provided at the outlet of the gas supply pipe (2). The distributor (14) is located on the top inner side of the mask body (1) to evenly distribute the gas into the interior of the mask body (1).

6. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The gas filtration unit (3) is provided with a primary filter layer, a high-efficiency filter layer and an activated carbon adsorption layer in sequence.

7. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The outer edge of the flexible sealing sleeve (5) is fixed in the elliptical through hole of the mask body (1) through an annular groove. A sealing ring is provided in the annular groove to enhance the airtightness of the connection.

8. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The arc-shaped baffle (7) is made of transparent medical plastic. The arc-shaped baffle (7) is fixed to the inner wall of the mask body (1) by screws. The screw head is covered with a medical-grade sealing gasket.

9. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The knob of the regulating valve (4) is connected to the flow meter, and the air supply flow is precisely controlled by rotating the knob.

10. A mask with a gastrointestinal endoscope channel according to claim 1, characterized in that: The bottom edge of the flexible sealing sleeve (5) is provided with an outwardly folded lip, which is in close contact with the inner wall of the mask body (1) to prevent gas leakage.

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