Oral foreign matter cleaning device for coma patient

Abstract

The invention relates to the technical field of oral care, in particular to an unconscious patient oral foreign matter cleaning device which comprises a seat body, two fastening belts with one ends mounted on the front side and the rear side of the seat body respectively and a central airway tube mounted in a mounting shell at the head of the seat body, and an elastic air bag mounted at the head of the central airway tube. A cleaning module is mounted in the middle through a rotary operation pipe, and an adsorption part is arranged between the cleaning module and the rotary operation pipe; the cleaning control center is arranged at the tail of the central airway tube and connected with the cleaning module through a cleaning liquid tube and an air tube, and the problems that in the prior art, due to the fact that a patient does not have the autonomous swallowing and closing capacity, foreign matter easily enters the airway by mistake, choking is caused, and the safety risk is high are solved; the visual field in the oral cavity is poor, the operation space is narrow, and manual or conventional instruments are difficult to clean comprehensively; an airway protective isolation structure is lacked, and cleaning fluid easily enters the esophagus and the airway and cannot adapt to the special physiological status of the coma patient.

Description

Technical Field

[0001] This invention relates to the field of oral care technology, specifically to a device for removing foreign objects from the mouth of a comatose patient. Background Technology

[0002] For comatose patients, the ability to clean their mouths independently is completely lost, making oral care a crucial step in preventing fatal complications. Retained saliva, secretions, and food debris not only create a breeding ground for bacteria but can also be aspirated into the lungs, directly causing aspiration pneumonia, one of the leading causes of infection and death in comatose patients. Simultaneously, effective oral hygiene maintains mucosal integrity, prevents oral infections, and monitors oral health, making it a core component of basic medical care.

[0003] Chinese Patent Publication No. CN222487690U discloses an emergency and critical care oral care device, including a base plate. A cleaning mechanism and a repellent mechanism are respectively arranged on the top of the base plate. The cleaning mechanism includes a water tank and a water pump. The input end of the water pump is fixedly connected to an inlet pipe, and the output end of the water pump is fixedly connected to an outlet pipe. A water delivery hose and a first handle are respectively arranged above the water tank. A three-way drain pipe and a drive motor are respectively fixedly connected to the inner wall of the first handle. This emergency and critical care oral care device, through the cooperation of the base plate, cleaning mechanism, repellent mechanism, and button controller, allows the operation of the button controller to control the water pump's pumping action, the negative pressure pump's suction action, and the drive motor's cleaning action of the soft brush and rotating rod. This allows the soft brush to clean foreign objects from the mouth while a fine stream of water from the three-way drain pipe wets the soft brush, facilitating the mixing of foreign objects with water and their removal.

[0004] However, when such oral foreign body removal devices are used to remove foreign bodies from the mouths of comatose patients, the lack of voluntary swallowing and closure control makes it easy for cleaning solutions, secretions, and foreign objects to enter the airway, causing aspiration or even aspiration pneumonia, posing a high safety risk. Moreover, the poor field of vision inside the mouth and the narrow operating space make it difficult to achieve thorough cleaning manually or with conventional instruments. Furthermore, the brushing, water supply, and suction functions are poorly coordinated, failing to simultaneously and continuously remove waste liquids and foreign objects while cleaning. They also lack protective isolation structures for the airway, allowing cleaning solutions to easily enter the esophagus and airway, making them unsuitable for the special physiological state of comatose patients. Summary of the Invention

[0005] The purpose of this invention is to provide a foreign body removal device for the oral cavity of comatose patients. This device overcomes the problems of existing foreign body removal devices for comatose patients, which are prone to accidental inhalation of cleaning fluid, secretions, and foreign objects into the airway due to the patient's lack of voluntary swallowing and closure ability, leading to aspiration or aspiration pneumonia and high safety risks; poor field of vision and narrow operating space in the oral cavity, making it difficult to clean thoroughly manually or with conventional instruments; and the lack of airway protective isolation structure, allowing cleaning fluid to easily enter the esophagus and airway, making it unsuitable for the special physiological state of comatose patients.

[0006] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is as follows: A foreign body removal device for the oral cavity of comatose patients was designed. The device includes a cleaning module, an adsorption component, and a cleaning control center, designed to prevent aspiration, provide visualization, and simultaneously perform brushing, liquid supply, and negative pressure suction. The coordinated operation of these components improves oral cleaning efficiency and safety, and reduces the risk of complications. The specific solution is as follows: A foreign body removal device for the oral cavity of a comatose patient includes a base and two fastening straps, one end of which is respectively installed on the front and rear sides of the base. It also includes: A central airway tube is installed inside the mounting shell at the head of the seat body, and an elastic airbag is installed at its head. A cleaning module is installed in the middle through a rotating operating tube, and an adsorption element is provided between the two. The cleaning control center is located at the end of the central airway tube and is connected to the cleaning module via a cleaning fluid tube and an air tube, respectively.

[0007] Preferably, the adsorption element is connected to the side wall of the central airway tube via an adsorption tube, the adsorption tube being an elastic flexible tube structure, and the adsorption tube being connected to a negative pressure suction device via a suction tube.

[0008] Preferably, the rotating operating tube is sleeved on the outside of the tail of the central airway tube, and an installation cap is provided on the lower side of the head of the rotating operating tube. The cleaning module is installed inside the installation cap and can rotate within the external groove provided through the mounting shell.

[0009] Preferably, the cleaning module includes: A connecting tube is rotatably connected to the mounting cap at the head of the rotating operating tube, and a cleaning brush rod is slidably connected to its lower end. A miniature camera is installed on the cleaning brush rod. The top of the connecting pipe is connected to the cleaning fluid pipe and the air pipe respectively, and the cleaning fluid pipe is placed in the inner groove opened on the central airway pipe. A cleaning brush is installed at the lower end of the cleaning brush rod and communicates with its interior.

[0010] Preferably, an air chamber is provided at the upper end of the connecting pipe, and a spherical piston is provided at the air inlet of the air chamber, the spherical piston being connected to the air pipe; A sealing partition is fixedly connected inside the air chamber, and an arc-shaped spring is provided between the sealing partition and the spherical piston. The arc-shaped spring is located on the air outlet side of the air chamber.

[0011] Preferably, a spring is provided between the connecting pipe and the cleaning brush rod, and a miniature vibration motor is also provided inside the cleaning brush rod. An electromagnetic switch is provided inside the miniature vibration motor, and the electromagnetic switch is used to control the flow of cleaning fluid in the cleaning brush.

[0012] Preferably, the mounting shell is fitted with a mounting ring at its tail, and one end of the two fastening straps is detachably connected to the front and rear sides of the mounting ring, while the other ends are joined together and fastened by a knob.

[0013] Preferably, a protective ring is fitted onto the outer side of the mounting shell, and the protective ring is pressed against the front side of the mounting ring.

[0014] The beneficial effects of this invention are: 1. This invention, through the cooperation of a central airway tube and an elastic airbag, can adaptively block the pharyngeal cleaning area during the cleaning process, effectively preventing cleaning fluid, secretions and foreign objects from accidentally entering the airway and esophagus. Structurally, it avoids the risk of aspiration and aspiration pneumonia, and greatly improves the safety of oral care for comatose patients.

[0015] 2. This invention integrates a cleaning module, a negative pressure adsorption component, and a miniature camera into one unit, which can simultaneously complete brushing, liquid supply, vibration, negative pressure suction, and real-time observation. It achieves simultaneous cleaning and suction of waste liquid and foreign matter, resulting in more thorough cleaning and more efficient operation. It solves the problems of asynchronous cleaning and suction, poor field of vision, and incomplete cleaning in traditional devices, which not only reduces the workload of medical staff but also improves work efficiency.

[0016] 3. This invention uses an air chamber, an arc spring, and an air tube to achieve automatic reciprocating rotation of the cleaning module. Combined with a manually rotatable rotating operating tube, it can clean the inner wall of the oral cavity from multiple angles without dead angles. At the same time, the cleaning brush can adaptively extend and retract to fit the mucosa under hydraulic pressure, improving the cleaning effect and reducing the risk of damaging oral tissues.

[0017] 4. The present invention adopts an overall structure in which the protective ring supports the oral cavity and the fastening band surrounds the head for fixation. The device is stably positioned and not easy to shift or fall off. Medical staff can complete the operation with one hand or one person, reducing the difficulty of operation and improving clinical applicability.

[0018] 5. The present invention has a compact overall structure and high functional integration. It can be used for routine oral foreign body removal and can also be used for emergency sputum suction by connecting an external suction tube. It is a multi-purpose device and is particularly suitable for long-term oral care and airway protection for comatose and critically ill patients in ICUs and emergency rooms. It has high clinical promotion value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 2 This is a schematic diagram of the installation of the fastening strap in a foreign body removal device for a comatose patient according to the present invention; Figure 3 This is a schematic diagram of the installation of the elastic airbag in the oral cavity foreign body removal device for comatose patients according to the present invention; Figure 4 This is a schematic diagram of the installation of the mounting shell in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 5 This is a schematic diagram of the installation of the central airway tube in a foreign body removal device for a comatose patient according to the present invention. Figure 6 This is a schematic diagram of the rotating operating tube in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 7 This is a side view of the rotating operating tube in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 8 for Figure 7 Schematic diagram of the cross section at point AA; Figure 9 This is a schematic diagram of the installation of the cleaning module in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 10 This is a side view of the cleaning module in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 11 for Figure 10 Schematic diagram of the cross section at point BB; Figure 12 This is a schematic diagram showing the connection relationship between the cleaning module and the rotating operating tube in a foreign body removal device for the oral cavity of a comatose patient according to the present invention. Figure 13 for Figure 12 Schematic diagram of the cross section at point C; Figure 14 This is a schematic diagram of the cleaning module in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 15 This is a perspective view of a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 16This is a perspective view of the rotating operating tube in a foreign body removal device for the oral cavity of a comatose patient according to the present invention; Figure 17 This is a perspective view of the cleaning module in a foreign body removal device for the oral cavity of a comatose patient according to the present invention.

[0020] In the diagram: 1-Base; 11-Mounting ring; 12-Mounting shell; 121-External groove; 2-Fastening strap; 21-Knob; 3-Rotating operating tube; 31-Mounting cap; 32-Air outlet; 33-Spherical piston; 4-Central airway tube; 41-Elastic airbag; 42-Internal groove; 5-Cleaning module; 51-Cleaning brush; 52-Cleaning brush rod; 53-Connecting tube; 531-Air chamber; 532-Arc spring; 533-Sealing partition; 54-Miniature camera; 55-Spring; 56-Miniature vibration motor; 57-Electromagnetic switch; 8-Cleaning control center; 81-Cleaning fluid tube; 82-Air tube; 9-Protective ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0022] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0023] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0025] like Figure 1-17 The present invention provides a foreign body removal device for the oral cavity of a comatose patient, comprising a base 1 and two fastening straps 2, one end of which is respectively installed on the front and rear sides of the base 1. These two fastening straps 2 reliably surround and fix the entire device, ensuring good stability during foreign body removal and effectively preventing accidental dislodgement due to movement or external force during operation. It also includes a central airway tube 4, made of elastic material, detachably installed within a mounting shell 12 at the head of the base 1, with an elastic airbag 41 detachably installed at its head. Utilizing the flexibility of the central airway tube 4 and the elastic support of the elastic airbag 41, it primarily provides a breathing channel for the patient during oral cleaning. The elastic airbag 41 can tightly fit and effectively seal the cleaning area within the oral cavity, preventing liquid spillage. Furthermore, the elastic airbag 41 can synchronously contract and expand according to the patient's breathing rhythm, always maintaining a good fit with the patient's pharynx, thereby further preventing the cleaning fluid from entering the esophagus and avoiding aspiration.

[0026] A cleaning module 5 is installed in the middle of the central airway tube 4 via a rotating operating tube 3. The rotating operating tube 3 passes through the base 1. The rotating operating tube 3 can control the cleaning module 5 to rotate along its axis, thereby driving the entire cleaning module 5 to rotate along the axis of the central airway tube 4 to achieve comprehensive cleaning of the periphery of the patient's oral cavity. An adsorption element 6 is set between the two. The adsorption element 6 uses negative pressure to promptly remove foreign objects in the patient's oral cavity to prevent the patient from choking. The cleaning control center 8 is located at the tail of the central airway tube 4 and is connected to the cleaning module 5 via a cleaning fluid tube 81 and an air tube 82. The cleaning fluid tube 81 provides cleaning fluid to the cleaning module 5 for cleaning, while the air tube 82 controls the cleaning module 5 to perform effective cleaning.

[0027] In the above scheme, the adsorption element 6 is connected to the side wall of the central airway tube 4 via a flexible adsorption tube 61. The adsorption tube 61 adopts an elastic flexible tube structure design, which has good bending adaptability and sealing performance. The other end of the adsorption tube 61 is connected to the negative pressure suction device 7 via a suction tube 71, and the negative pressure is used to achieve stable suction of the adsorption target.

[0028] In the above embodiment, the adsorption element 6 adopts a flexible suction cup structure with densely distributed adsorption pores on its surface. Combined with the elastic flexible tube 61, this structure can adaptively bend and deform to flexibly fit the oral environment of different patients, which not only improves the convenience of operation but also ensures effective adsorption of foreign objects during oral cleaning, while taking into account the safety and comfort of patients. Secondly, the adsorption tube 61 can be connected to a suction tube, which can perform emergency suctioning for patients without needing to place the device inside the patient's mouth.

[0029] In the above scheme, the rotating operating tube 3 is sleeved on the outer side of the tail of the central airway tube 4. The rotating operating tube 3 is provided with an installation cap 31 on the lower side of the head. The cleaning module 5 is installed in the installation cap 31 to achieve fixed installation of the cleaning module 5. It can rotate in the external groove 121 provided through the mounting shell 12 so as to allow the cleaning module 5 to rotate as a whole, thereby achieving comprehensive cleaning of the periphery of the patient's oral cavity.

[0030] In the above embodiment, to fully meet the rotational requirements of the cleaning module 5 at different angles and positions during oral cleaning, the rotating operation tube 3 can be manually rotated. When rotated, the rotating operation tube 3 effectively drives the cleaning module 5 at its end, allowing it to rotate smoothly around the axis of the central airway tube 4, thereby achieving comprehensive coverage and thorough cleaning of all areas within the patient's oral cavity. Simultaneously, the external passage groove 121 designed on the side of the mounting shell 12 provides the necessary structural space for the rotational movement of the cleaning module 5, ensuring smooth and unobstructed rotation and further guaranteeing the effectiveness and safety of the cleaning operation.

[0031] In the above scheme, the cleaning module 5 mainly consists of a connecting pipe 53, which is rotatably connected to the mounting cap 31 at the head of the rotating operating pipe 3, ensuring stable rotation of the cleaning module during operation. A cleaning brush rod 52 is slidably connected to its lower end. The cleaning brush rod 52 integrates a miniature camera 54, providing clear, real-time visual support for medical personnel during cleaning operations in the patient's oral cavity, improving the accuracy and safety of the operation. The top of the connecting pipe 53 has interfaces connecting to the cleaning fluid tube 81 and the air tube 82, respectively. The cleaning fluid tube 81 is arranged within an inner groove 42 on the central airway tube 4, which is completely enclosed by the rotating operating pipe 3, thus ensuring the overall sealing performance of the central airway tube 4. The cleaning brush 51 is installed at the lower end of the cleaning brush rod 52 and communicates with the interior of the cleaning brush rod 52, allowing for effective brushing of the patient's oral cavity. The cleaning brush 51 is designed as a detachable structure, specifically using a threaded connection or an interference fit, for easy replacement and cleaning. In addition, the cleaning brush 51 can be selected in different shapes, such as straight or right angle, according to actual clinical needs, to adapt to the cleaning needs of different oral areas.

[0032] An annular air chamber 531 is provided at the upper end of the connecting pipe 53. A spherical piston 33 is provided at the air inlet of the air chamber 531. The spherical piston 33 passes through the mounting cap 31 and is connected to the air pipe 82, facilitating the introduction of gas into the air chamber 531. A sealing partition 533 is fixedly connected inside the air chamber 531. An arc-shaped spring 532 is provided between the sealing partition 533 and the spherical piston 33. The arc-shaped spring 532 is located on the side of the air outlet 32 ​​of the air chamber 531. It can be pushed by the continuously introduced gas to move the sealing partition 533 inside the mounting cap 31. The rotation of the connecting tube 53 within the mounting cap 31 causes the cleaning module 5 to rotate, compressing the arc spring 532. After the gas supply stops, the gas is discharged through the outlet 32. Under the restoring force of the arc spring 532, the sealing partition 533 pushes the connecting tube 53 to rotate in the opposite direction, thereby causing the entire cleaning module 5 to rotate in the opposite direction. This cycle repeats to achieve the reciprocating rotation of the entire cleaning module 5, ultimately completing a comprehensive, reciprocating cleaning of the patient's oral cavity with the help of the cleaning brush 51.

[0033] A spring 55 is installed between the connecting tube 53 and the cleaning brush rod 52. When cleaning fluid is injected into the cleaning brush rod 52 through the cleaning fluid tube 81, the pressure of the fluid will push the cleaning brush rod 52 to move relative to the connecting tube 53, thereby changing its extension length. In conjunction with the spring 55, the cleaning brush 51 can adaptively fit against the patient's oral cavity wall, improving the stability of the cleaning contact. That is, the cleaning control center 8 can adaptively control the flow rate of the cleaning fluid in the cleaning fluid tube 81 according to the hydraulic pressure in the cleaning fluid tube 81, thereby controlling the pressure exerted by the cleaning fluid on the cleaning brush rod 52. This allows the cleaning brush rod 52 to adaptively change its extension length from the connecting tube 53 according to the complex oral environment. In other words, the diameter of the cleaning fluid tube 81 is larger than the cleaning fluid channel in the cleaning brush rod 52. When the flow rate in the cleaning fluid tube 81 is large, it cannot be discharged through the channel of the cleaning brush rod 52 in time, thus exerting a certain pressure on the cleaning brush rod 52. Conversely, this pressure gradually decreases as the flow rate of the cleaning fluid in the cleaning fluid tube 81 decreases. A miniature vibration motor 56 is also installed inside the cleaning brush handle 52. This motor integrates an electromagnetic switch 57, which controls the opening and closing of the cleaning fluid channel within the cleaning brush handle 52, thereby controlling the flow of cleaning fluid into the cleaning brush 51. During the cleaning process, activating the miniature vibration motor 56 simultaneously activates the electromagnetic switch 57. At this time, the cleaning fluid is vibrated and transported from inside the cleaning brush handle 52 to the cleaning brush 51 under vibration, and then evenly seeps out through the micropores on its surface, achieving a comprehensive cleaning of the patient's oral cavity. Simultaneously, the subtle vibrations generated by the miniature vibration motor 56 not only promote fluid flow but also assist the brush head in mechanically loosening dirt, further enhancing the overall cleaning effect.

[0034] In the above embodiment, if the cleaning module 5 needs to rotate, the air pipe 82 only needs to intermittently ventilate the annular air chamber 531 at the top of the connecting pipe 53 through the ball piston 33. The gas pressure pushes the sealing partition 533 in the air chamber 531, causing the connecting pipe 53 to rotate forward in the mounting cap 31. At the same time, the arc spring 532 is compressed, and the gas on one side of the arc spring 532 is discharged from the air outlet 32. After the ventilation stops, the arc spring 532 returns to its original position by its elasticity, pushing the sealing partition 533 and the connecting pipe 53 to rotate in the opposite direction. One side of the arc spring 532 is replenished with gas from the air outlet 32, while the opposite side returns the gas through the ball piston 33 from the air pipe 82 for the next ventilation. This cycle repeats to achieve the overall reciprocating rotation of the cleaning module 5.

[0035] When the cleaning module needs to extend or retract, the spring 55 between the connecting pipe 53 and the cleaning brush rod 52 is used. When the cleaning fluid is injected into the cleaning brush rod 52 by the cleaning fluid pipe 81, the hydraulic pressure pushes the cleaning brush rod 52 to slide downward, and the spring 55 is stretched, so that the cleaning brush 51 extends adaptively and fits against the inner wall of the oral cavity. When the cleaning fluid is discharged, the pressure change in the cavity where the spring 55 is located is small. The extension length of the cleaning brush rod 52 can be maintained by appropriately increasing the cleaning fluid injection pressure, so as to achieve adaptive adjustment of the length of the cleaning brush rod 52.

[0036] In the above scheme, the mounting shell 12 is fitted with a mounting ring 11 at the tail. The mounting ring 11 is provided with ear rings on the front and rear sides respectively. One end of the two fastening straps 2 is detachably connected to the ear rings on the front and rear sides of the mounting ring 11, and the other end is connected to each other and fastened by the knob 21. That is, the free ends of the two fastening straps 2 are inserted into the through slot plate with mutual overlap. The knob 21 is threaded to the outside of the through slot plate. The fastening straps 2 can be loosened or tightened by loosening or tightening the knob 21 to achieve a firm fastening of the fastening straps 2.

[0037] In the above scheme, a protective ring 9 is sleeved on the outside of the mounting shell 12. The protective ring 9 is pressed against the front side of the mounting ring 11. The protective ring 9 is used to support the patient's upper and lower teeth to prevent their mouth from closing, and works with the fastening strap 2 to fix the device firmly.

[0038] In the above embodiment, the cleaning end can be placed into the patient's mouth so that the protective ring 9 bites between the patient's upper and lower teeth, and the fastening band 2 can be tightened to fix the device firmly by turning the tightening knob 21.

[0039] Specific implementation examples: The following are the specific methods of using this oral foreign body removal device for comatose patients: 1) Preliminary preparations Check the tightness of the connections of each detachable component, and ensure that the cleaning fluid pipe 81, air pipe 82, suction pipe 71, negative pressure suction device 7 and cleaning control center 8 are in working condition, and debug the functions of each component to ensure normal operation.

[0040] 2) Device fixing Open the mouth of the comatose patient and place the cleaning end of the device into the patient's mouth, so that the patient's upper and lower teeth bite on the protective ring 9. Adjust the position of the central airway tube 4 and the elastic air bag 41 to ensure that the central airway tube 4 is unobstructed and provides the patient with an independent breathing channel. The elastic air bag 41 fits against the pharynx to block the cleaning area and prevent the cleaning fluid from overflowing into the esophagus. Finally, wrap the two fastening straps 2 around the patient's head, and tighten them by interlacing the free ends and tightening them with the knob 21 to ensure the overall stability of the device.

[0041] 3) Suction protection When the negative pressure suction device 7 is activated, the adsorption element 6 forms a continuous negative pressure through the adsorption tube 61, which adsorbs foreign objects, secretions and cleaning waste liquid in the oral cavity at any time to prevent choking and aspiration; the elastic air bag 41 naturally contracts and expands with the patient's breathing, continuously adhering to the pharynx, separating the clean area from the airway, and further preventing liquid from entering.

[0042] 4) Thorough cleaning When the cleaning control center 8 is turned on, the trachea 82 intermittently ventilates the annular air chamber 531. When ventilating, the gas pushes the sealing partition 533 to drive the cleaning module 5 to rotate in the forward direction. When ventilating stops, the arc spring 532 resets and drives the cleaning module 5 to rotate in the reverse direction. This cycle achieves reciprocating rotation cleaning, covering all the walls of the oral cavity. The cleaning fluid enters the cleaning brush rod 52 through the cleaning fluid tube 81. The hydraulic pressure pushes the cleaning brush rod 52 to extend adaptively against the tension of the spring 55, so that the cleaning brush 51 fits against the inner wall of the oral cavity. When the micro vibration motor 56 is started, the electromagnetic switch 57 is opened simultaneously. The cleaning fluid is sprayed evenly from the micro-holes of the cleaning brush 51 under vibration. The vibration of the cleaning brush 51 and the mechanical brushing improve work efficiency.

[0043] 5) Observe and adjust The cleaning status inside the oral cavity can be observed in real time through the miniature camera 54. The angle of the cleaning module 5 can be adjusted over a wide range by manually rotating the rotating operating tube 3, so as to achieve cleaning without dead angles.

[0044] In summary, the cleaning module 5 achieves reciprocating rotation through air pressure, adaptive expansion and contraction through cleaning fluid pressure, and simultaneous vibration and liquid dispensing for brushing through the micro vibration motor 56. It can also rotate circumferentially with the rotating operating tube 3 to complete a comprehensive and thorough cleaning of the oral cavity wall of a comatose patient.

[0045] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A foreign body removal device for the oral cavity of a comatose patient, comprising a seat (1) and two fastening straps (2) with one end respectively installed on the front and rear sides of the seat (1), characterized in that, Also includes: The central airway tube (4) is installed in the mounting shell (12) at the head of the seat (1), and an elastic airbag (41) is installed at its head. A cleaning module (5) is installed in the middle through the rotating operating tube (3), and an adsorption element (6) is provided between the two. The cleaning control center (8) is located at the end of the central airway tube (4) and is connected to the cleaning module (5) via the cleaning liquid tube (81) and the air tube (82) respectively.

2. The oral cavity foreign body removal device for a comatose patient according to claim 1, characterized in that, The adsorption element (6) is connected to the side wall of the central airway tube (4) through an adsorption tube (61). The adsorption tube (61) is an elastic flexible tube structure. The adsorption tube (61) is connected to a negative pressure suction device (7) through a suction tube (71).

3. The oral cavity foreign body removal device for a comatose patient according to claim 1, characterized in that, The rotating operating tube (3) is sleeved on the outer side of the tail of the central airway tube (4). A mounting cap (31) is provided on the lower side of the head of the rotating operating tube (3). The cleaning module (5) is installed in the mounting cap (31) and can rotate in the external groove (121) provided through the mounting shell (12).

4. The oral cavity foreign body removal device for a comatose patient according to claim 1, characterized in that, The cleaning module (5) includes: The connecting tube (53) is rotatably connected to the mounting cap (31) at the head of the rotating operating tube (3), and a cleaning brush rod (52) is slidably connected to its lower end. A miniature camera (54) is provided on the cleaning brush rod (52). The top of the connecting pipe (53) is connected to the cleaning fluid pipe (81) and the air pipe (82) respectively. The cleaning fluid pipe (81) is placed in the inner groove (42) opened on the central airway pipe (4). A cleaning brush (51) is installed at the lower end of the cleaning brush rod (52) and communicates with its interior.

5. The oral cavity foreign body removal device for a comatose patient according to claim 4, characterized in that, The upper end of the connecting pipe (53) is provided with an air chamber (531), and a ball piston (33) is provided at the air inlet of the air chamber (531). The ball piston (33) is connected to the air pipe (82). A sealing partition (533) is fixedly connected inside the air chamber (531). An arc spring (532) is provided between the sealing partition (533) and the ball piston (33). The arc spring (532) is located on the side of the air outlet (32) of the air chamber (531).

6. The oral cavity foreign body removal device for a comatose patient according to claim 4, characterized in that, A spring (55) is provided between the connecting pipe (53) and the cleaning brush rod (52). A micro vibration motor (56) is also provided inside the cleaning brush rod (52). An electromagnetic switch (57) is provided inside the micro vibration motor (56). The electromagnetic switch (57) is used to control the flow of cleaning fluid in the cleaning brush (51).

7. The oral cavity foreign body removal device for a comatose patient according to claim 1, characterized in that, The mounting shell (12) is fitted with a mounting ring (11) at the tail. One end of the two fastening straps (2) is detachably connected to the front and rear sides of the mounting ring (11), and the other end is connected to each other and fastened by a knob (21).

8. A foreign body removal device for the oral cavity of a comatose patient according to claim 7, characterized in that, A protective ring (9) is fitted around the outside of the mounting shell (12), and the protective ring (9) is pressed against the front side of the mounting ring (11).

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