Adjustable oral care and negative pressure irrigation integrated system for critical patients

CN122604516APending Publication Date: 2026-08-21SHENZHEN SECOND PEOPLES HOSPITAL (SHENZHEN INST OF TRANSLATIONAL MEDICINE)
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Patent Information

Application Number
CN202610796246.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-04
Publication Date
2026-08-21

AI Technical Summary

Technical Problem

[0003]目前临床针对重症患者的口腔护理多采用人工操作模式,护理人员需手持工具逐一完成口腔刷洗及废液吸附收集工作,工作效率低下;且常用的护理设备仅具备简单冲洗功能,无法同步实现刷洗与废液的回收,适配性较差

Benefits of technology

[0014] The beneficial effects are as follows: the motor drives the bevel gear and rocker mechanism of this device to make the dental brace swing back and forth, and the bristles can rinse and clean the patient's mouth. There is no need for manual hand operation, which reduces the workload of nursing staff and saves labor costs. At the same time, the reciprocating movement of the connecting rod can not only automatically rinse and clean the patient's mouth, but also automatically collect the waste liquid after cleaning. It is suitable for the nursing needs of a large number of critically ill patients in the ICU and has a wide range of applicability.

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Abstract

The application discloses a severe patient oral care and negative pressure flushing integrated system, and relates to the technical field of medical devices, comprising a machine body, a liquid inlet tank fixedly connected to the top of the machine body, a liquid return tank fixedly connected to the bottom of the machine body, a motor fixedly connected to the inner wall of the machine body, a fixed column fixedly connected to the output end of the motor, a limiting frame slidingly connected to the fixed column, and the top and bottom of the limiting frame slidingly connected in the machine body. The motor drives the bevel gear and the rocker mechanism to drive the dental cover to reciprocate, and the bristles can flush and clean the patient's oral cavity without manual operation, which reduces the working intensity of the nursing staff and saves the labor cost. Meanwhile, the reciprocating movement of the connecting rod can not only automatically flush and clean the patient's oral cavity, but also automatically collect the waste liquid after cleaning, which is suitable for the nursing needs of a large number of severe patients in the ICU and has wide adaptability.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an adjustable oral care and negative pressure irrigation integrated system for critically ill patients. Background Technology

[0002] Critically ill patients often experience prolonged bed rest and altered mental status, making it impossible for them to perform dental cleaning or oral care independently. The patient's oral cavity remains in a closed, moist environment, making it highly susceptible to the growth of bacteria, fungi, and other pathogens, leading to oral infections and even other serious complications. This directly impacts the patient's recovery process and life safety. Therefore, oral care is one of the core basic procedures in critical care clinical nursing.

[0003] Currently, oral care for critically ill patients in clinical practice mostly adopts a manual operation mode. Nurses need to use hand tools to complete oral brushing and waste liquid collection one by one, which is inefficient. Moreover, the commonly used nursing equipment only has a simple rinsing function and cannot simultaneously achieve brushing and waste liquid recycling, resulting in poor adaptability. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable oral care and negative pressure irrigation integrated system for critically ill patients in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: An adjustable oral care and negative pressure irrigation integrated system for critically ill patients includes a main body. An inlet tank is fixedly connected to the top of the main body, and a return tank is fixedly connected to the bottom. A motor is fixedly connected to the inner wall of the main body. A fixed post is fixedly connected to one end of the motor's output. A limit frame is slidably connected to the fixed post. The top and bottom of the limit frame are slidably connected to the main body. Connecting rods are fixedly connected to both the front and rear sides of the limit frame, and the connecting rods are distributed in a vertically mirrored manner. A sliding plate is fixedly connected to the end of the connecting rod furthest from the motor. The top sliding plate... The sliding connection is inside the inlet tank, and the bottom slide plate is slidably connected to the return tank. A piston is fixedly connected to the connecting rod, and the piston overlaps the inner surface of the slide plate. An inlet pipe is fixedly connected to the rear side of the machine body, and the inlet pipe is connected to the inside of the inlet tank. An outlet pipe is fixedly connected to the rear side of the machine body, and the outlet pipe is located at the bottom of the inlet pipe and is connected to the inside of the return tank. Baffles are hinged to the inner walls of both the inlet tank and the return tank. The upper baffle is hinged between the inlet pipe and the inlet tank, and the lower baffle is hinged to the end of the return tank away from the outlet pipe.

[0006] Preferably, a driving bevel gear is fixedly connected to the output end of the motor, a driven bevel gear meshes with the front side of the driving bevel gear, a driven shaft is fixedly connected to the front side of the driven bevel gear, and the driven shaft is rotatably connected to the machine body.

[0007] Preferably, a turntable is fixedly connected to the end of the driven shaft away from the driven bevel gear. A limit post is rotatably connected to the turntable, and a movable frame is slidably connected to the limit post. The top and bottom of the movable frame are slidably connected to the machine body. A rocker arm is fixedly connected to the front side of the movable frame. A column is rotatably connected to the rocker arm. The column is vertically arranged and fixedly connected to the machine body. A lever is fixedly connected to the end of the rocker arm away from the turntable. The lever is a rigid transmission rod used to stably transmit the swinging power.

[0008] Preferably, a connecting block is rotatably connected to the front side of the machine body, and an arc-shaped plate is fixedly connected to the side of the connecting block near the machine body. The end of the lever away from the rocker arm is rotatably connected to the arc-shaped plate, and a dental sleeve is fixedly connected to the end of the connecting block away from the machine body. The dental sleeve consists of two arc-shaped U-shaped plates with openings in the same direction, which are adapted to the contours of the upper and lower teeth of the human body. It can be stably attached to the outside of the patient's teeth, and is convenient to fix and has a good fit.

[0009] Preferably, an upper extension pipe is fixedly connected to the front side of the inlet tank, and a lower extension pipe is fixedly connected to the front side of the return tank. Ball joints are fixedly connected to the front sides of both the upper and lower extension pipes.

[0010] Preferably, the rear side of the dental aligner is fixedly connected to two connecting sleeves, the axes of the two connecting sleeves are respectively aligned with the axes of the upper extension tube and the lower extension tube, and the connecting sleeves are rotatably connected to the outer surface of the ball joint. Through the universal joint between the ball joint and the connecting sleeve, the ball joint form can maintain the connection between the connecting sleeve and the ball joint and maintain the flow of liquid when the dental aligner swings.

[0011] Preferably, an upper guide tube is fixedly connected to the upper rear side of the dental brace, the upper guide tube is fixedly connected to the connecting sleeve, and the upper guide tube is connected to the interior of the upper extension tube through the connecting sleeve. A lower guide tube is fixedly connected to the lower rear side of the dental brace, the lower guide tube is fixedly connected to the connecting sleeve, and the lower guide tube is connected to the interior of the lower extension tube through the connecting sleeve.

[0012] Preferably, the dental brace is fixedly connected to a partition with several round holes to disperse the cleaning solution flow, avoid concentrated water flow impacting local oral tissues, and achieve uniform rinsing.

[0013] Preferably, the opposing surfaces of the dental brace are fixedly connected with several bristles, and several through holes are opened on the side of the upper and lower guide tubes away from the connecting tube.

[0014] The beneficial effects are as follows: the motor drives the bevel gear and rocker mechanism of this device to make the dental brace swing back and forth, and the bristles can rinse and clean the patient's mouth. There is no need for manual hand operation, which reduces the workload of nursing staff and saves labor costs. At the same time, the reciprocating movement of the connecting rod can not only automatically rinse and clean the patient's mouth, but also automatically collect the waste liquid after cleaning. It is suitable for the nursing needs of a large number of critically ill patients in the ICU and has a wide range of applicability.

[0015] The additional technical features and advantages of the present invention will become more apparent from the following description, or may be learned through practice of the invention. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional first-view structural diagram of the main body of the adjustable oral care and negative pressure irrigation integrated system for critically ill patients described in this invention; Figure 2 This is a three-dimensional second-view structural diagram of the main body of the adjustable oral care and negative pressure irrigation integrated system for critically ill patients described in this invention; Figure 3 This is a partial left-side cross-sectional view of the adjustable oral care and negative pressure irrigation integrated system for critically ill patients described in this invention; Figure 4 This is a partial three-dimensional sectional view of the adjustable oral care and negative pressure irrigation integrated system for critically ill patients described in this invention; Figure 5 This is a partial top view of the adjustable oral care and negative pressure irrigation integrated system for critically ill patients described in this invention. Figure 6 This invention relates to an adjustable oral care and negative pressure irrigation integrated system for critically ill patients. Figure 3 Enlarged view of point A in the middle.

[0017] The following are explanations of the reference numerals in the attached drawings: 1. Body; 2. Motor; 3. Fixed column; 4. Limiting frame; 5. Connecting rod; 6. Slide plate; 7. Piston; 8. Inlet tank; 9. Inlet pipe; 10. Return tank; 11. Outlet pipe; 12. Driven bevel gear; 13. Driven shaft; 14. Turntable; 15. Limiting column; 16. Moving frame; 17. Rocker arm; 18. Column; 19. Lever; 20. Arc plate; 21. Connecting block; 22. Upper extension pipe; 23. Lower extension pipe; 24. Ball joint; 25. Connecting sleeve; 26. Upper guide pipe; 27. Lower guide pipe; 28. Gear sleeve; 29. ​​Partition plate; 30. Brush bristles; 31. Through hole; 32. Driving bevel gear; 33. Baffle. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 limitations on this invention.

[0020] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6 As shown, an adjustable oral care and negative pressure irrigation integrated system for critically ill patients includes a body 1 with an internal storage space. An inlet tank 8 is fixedly connected to the top of the body 1, and a return tank 10 is fixedly connected to the bottom, with the two arranged vertically at intervals. A motor 2 is fixedly connected to the inner wall of the body 1, with its output end extending towards the interior of the body 1 and a fixed post 3 fixedly connected to its end. A limit frame 4 is slidably connected to the fixed post 3, with its top and bottom slidably connected to the inner wall of the body 1, allowing the limit frame 4 to reciprocate horizontally. Connecting rods 5 are fixedly connected to both the front and rear sides of the limit frame 4, and the connecting rods 5 on both sides are symmetrically distributed in a mirror image, i.e., there is a pair of connecting rods 5 at the top and bottom of the limit frame 4 respectively. A sliding plate 6 is fixedly connected to the end of the connecting rod 5 away from the motor 2, with the sliding plate 6 connected to the upper connecting rod 5 slidably connected inside the inlet tank 8, and the sliding plate 6 connected to the lower connecting rod 5 slidably connected inside the return tank 10. Each connecting rod 5 is fixedly connected to a piston 7, and the outer edge of the piston 7 overlaps the inner surface of the slide plate 6 to form a valve-like structure that can be opened in one direction.

[0021] An inlet pipe 9 is fixedly connected to the rear side of the machine body 1. The inlet pipe 9 is connected to the interior of the inlet tank 8 and is used to supply cleaning fluid to the inlet tank 8. An outlet pipe 11 is also fixedly connected to the rear side of the machine body 1. The outlet pipe 11 is located below the inlet pipe 9 and is connected to the interior of the return tank 10 and is used to discharge the recovered waste liquid.

[0022] Both the inlet tank 8 and the return tank 10 have baffles 33 hinged to their inner walls. The upper baffle 33 is hinged at the connection between the inlet pipe 9 and the inlet tank 8, thus controlling the opening and closing of the inlet pipe 9; the lower baffle 33 is hinged at the end of the return tank 10 away from the outlet pipe 11, thus controlling the opening and closing of the flow channel between the return tank 10 and the lower extension pipe 23.

[0023] A drive bevel gear 32 is fixedly connected to the output end of motor 2, and a driven bevel gear 12 meshes with the front side of the drive bevel gear 32. A driven shaft 13 is fixedly connected to the front side of the driven bevel gear 12, and the driven shaft 13 is rotatably connected to the machine body 1, thereby outputting power laterally.

[0024] A turntable 14 is fixedly connected to the end of the driven shaft 13 away from the driven bevel gear 12. A limit post 15 is eccentrically rotatably connected to the turntable 14. A movable frame 16 is slidably connected to the limit post 15. The top and bottom of the movable frame 16 are slidably connected inside the machine body 1, allowing it to reciprocate vertically. A rocker arm 17 is fixedly connected to the front side of the movable frame 16. The middle part of the rocker arm 17 is rotatably connected to a column 18, which is vertically fixed to the machine body 1. A lever 19 is fixedly connected to the end of the rocker arm 17 away from the turntable 14.

[0025] A connecting block 21 is rotatably connected to the front side of the body 1. An arc-shaped plate 20 is fixedly connected to the side of the connecting block 21 closest to the body 1. The end of the lever 19 away from the rocker arm 17 is rotatably connected to the arc-shaped plate 20. A dental brace 28 is fixedly connected to the end of the connecting block 21 away from the body 1. The dental brace 28 is a U-shaped plate structure with two arc-shaped openings in the same direction, used to accommodate the patient's upper and lower teeth respectively.

[0026] An upper extension tube 22 is fixedly connected to the front of the inlet tank 8, and a lower extension tube 23 is fixedly connected to the front of the return tank 10. Ball joints 24 are fixedly connected to the front of both the upper extension tube 22 and the lower extension tube 23. Two connecting sleeves 25 are fixedly connected to the rear of the dental aligner 28, with the axes of the two connecting sleeves 25 corresponding to the axes of the upper extension tube 22 and the lower extension tube 23, respectively. The connecting sleeves 25 are fitted onto the outer surface of the ball joints 24, forming a rotatable connection, thereby allowing the dental aligner 28 to swing within a certain angle relative to the body 1 while maintaining fluid circulation.

[0027] An upper guide tube 26 is fixedly connected to the upper rear side of the brace 28. The upper guide tube 26 is fixedly connected to the upper connecting sleeve 25 and communicates with the interior of the upper extension tube 22 through the connecting sleeve 25. A lower guide tube 27 is fixedly connected to the lower rear side of the brace 28. The lower guide tube 27 is fixedly connected to the lower connecting sleeve 25 and communicates with the interior of the lower extension tube 23 through the connecting sleeve 25.

[0028] A partition 29 is fixedly connected to the dental brace 28, dividing the internal space of the dental brace 28. The partition 29 has several round holes to facilitate the even distribution of cleaning fluid. Several bristles 30 are fixedly connected to the inner walls of the dental brace 28 for brushing teeth and oral soft tissues. Several through holes 31 are provided on the side of the upper drainage tube 26 and the lower drainage tube 27 away from the corresponding connecting sleeve 25 for liquid to enter and exit.

[0029] Working principle: When using the device, the operator first connects the relevant external devices to the inlet pipe 9 and the outlet pipe 11 respectively, then inserts the dental sleeve 28 of the device into the patient's mouth, and places the patient's upper and lower teeth in the groove of the dental sleeve 28.

[0030] Then, motor 2 is started. Motor 2 drives the fixed column 3 to rotate through the output end. Under the action of the rotation of the fixed column 3, the limit frame 4 moves back and forth in the horizontal direction, and drives the upper and lower connecting rods 5 to move.

[0031] When the upper connecting rod 5 moves closer to the dental brace 28, a negative pressure is generated in the inlet tank 8. At this time, the upper baffle 33 will open under the action of the negative pressure, and the cleaning fluid will be drawn into the inlet tank 8 through the inlet pipe 9. When the upper connecting rod 5 moves away from the dental brace 28, the cleaning fluid stored in the inlet pipe 9 will exert pressure on the baffle 33, causing the baffle 33 to close. At the same time, the pressure generated will push open the edge of the piston 7. At this time, the cleaning fluid will flow into the upper extension pipe 22 through the hole opened on the slide plate 6. As the slide plate 6 moves back and forth, the cleaning fluid will be continuously pumped into the upper extension pipe 22, pass through the connecting sleeve 25 and the upper guide pipe 26, and finally flow into the dental brace 28 through several through holes 31.

[0032] When the lower connecting rod 5 moves away from the brace 28, a negative pressure is generated in the return tank 10. At this time, the lower baffle 33 will open under the action of the negative pressure. The cleaning solution after brushing is sucked into the return tank 10 through the through hole 31, the lower guide tube 27 and the connecting sleeve 25, and finally through the lower extension tube 23. When the lower connecting rod 5 moves closer to the brace 28, the waste liquid stored in the return tank 10 will exert pressure on the baffle 33, causing the lower baffle 33 to close. At the same time, the pressure generated will push open the edge of the lower piston 7. At this time, the waste liquid will flow into the outlet tube 11 through the hole opened on the slide plate 6. As the slide plate 6 moves back and forth, the waste liquid will be continuously pumped into the outlet tube 11 and flow out of the device under pressure. This reciprocating cycle not only allows the device to automatically rinse and clean the patient's oral cavity, but also automatically collects the waste liquid after cleaning.

[0033] While the output end of motor 2 rotates, it also drives the active bevel gear 32 to rotate. The rotation of the active bevel gear 32 drives the driven shaft 13 to rotate through the driven bevel gear 12. The rotation of the driven shaft 13 drives the limit post 15 on the turntable 14 to rotate, causing the moving frame 16 to move back and forth. The reciprocating movement of the moving frame 16 will drive the rocker arm 17 to swing back and forth around the column 18 as the axis. The reciprocating swing of the rocker arm 17 will drive the arc plate 20 and the connecting block 21 to swing back and forth through the lever 19.

[0034] The reciprocating swing of the connecting block 21 will drive the braces 28 to reciprocate, and the bristles 30 on them will brush the patient's mouth and teeth.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An integrated adjustable oral care and negative pressure irrigation system for critically ill patients, comprising a body (1), characterized in that: A liquid inlet tank (8) is fixedly connected to the top of the machine body (1), and a liquid return tank (10) is fixedly connected to the bottom of the machine body (1). A motor (2) is fixedly connected to the inner wall of the machine body (1). A fixed column (3) is fixedly connected to one end of the output end of the motor (2). A limit frame (4) is slidably connected to the fixed column (3). The top and bottom of the limit frame (4) are slidably connected to the machine body (1). Connecting rods (5) are fixedly connected to both the front and rear sides of the limit frame (4). The connecting rods (5) are distributed in a vertical mirror image. A sliding plate (6) is fixedly connected to the end of the connecting rod (5) away from the motor (2). The sliding plate (6) at the top is slidably connected to the liquid inlet tank (8), and the sliding plate (6) at the bottom is slidably connected to the liquid return tank (10). Inside, a piston (7) is fixedly connected to the connecting rod (5), and the piston (7) overlaps the inner surface of the slide plate (6). An inlet pipe (9) is fixedly connected to the rear side of the machine body (1), and the inlet pipe (9) is connected to the interior of the inlet tank (8). An outlet pipe (11) is fixedly connected to the rear side of the machine body (1), and the outlet pipe (11) is located at the bottom of the inlet pipe (9). The outlet pipe (11) is connected to the interior of the return tank (10). Baffles (33) are hinged on the inner walls of the inlet tank (8) and the return tank (10). The upper baffle (33) is hinged between the inlet pipe (9) and the inlet tank (8), and the lower baffle (33) is hinged to the end of the return tank (10) away from the outlet pipe (11).

2. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 1, characterized in that: A drive bevel gear (32) is fixedly connected to the output end of the motor (2). A driven bevel gear (12) meshes with the front side of the drive bevel gear (32). A driven shaft (13) is fixedly connected to the front side of the driven bevel gear (12). The driven shaft (13) is rotatably connected to the machine body (1).

3. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 2, characterized in that: A turntable (14) is fixedly connected to one end of the driven shaft (13) away from the driven bevel gear (12). A limit post (15) is rotatably connected to the turntable (14). A movable frame (16) is slidably connected to the limit post (15). The top and bottom of the movable frame (16) are slidably connected to the machine body (1). A rocker arm (17) is fixedly connected to the front side of the movable frame (16). A column (18) is rotatably connected to the rocker arm (17). The column (18) is vertically arranged and fixedly connected to the machine body (1). A lever (19) is fixedly connected to one end of the rocker arm (17) away from the turntable (14).

4. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 3, characterized in that: A connecting block (21) is rotatably connected to the front side of the body (1). An arc plate (20) is fixedly connected to the side of the connecting block (21) near the body (1). The end of the lever (19) away from the rocker arm (17) is rotatably connected to the arc plate (20). A dental sleeve (28) is fixedly connected to the end of the connecting block (21) away from the body (1). The dental sleeve (28) is two arc-shaped U-shaped plates with openings in the same direction.

5. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 4, characterized in that: The front side of the liquid inlet tank (8) is fixedly connected to an upper extension pipe (22), and the front side of the liquid return tank (10) is fixedly connected to a lower extension pipe (23). Both the front side of the upper extension pipe (22) and the lower extension pipe (23) are fixedly connected to ball joints (24).

6. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 5, characterized in that: The back of the dental brace (28) is fixedly connected to two connecting sleeves (25). The axes of the two connecting sleeves (25) correspond to the axes of the upper extension tube (22) and the lower extension tube (23), respectively. The connecting sleeves (25) are rotatably connected to the outer surface of the ball joint (24).

7. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 6, characterized in that: An upper guide tube (26) is fixedly connected to the upper rear side of the dental brace (28). The upper guide tube (26) is fixedly connected to the connecting sleeve (25). The upper guide tube (26) is connected to the interior of the upper extension tube (22) through the connecting sleeve (25). A lower guide tube (27) is fixedly connected to the lower rear side of the dental brace (28). The lower guide tube (27) is fixedly connected to the connecting sleeve (25). The lower guide tube (27) is connected to the interior of the lower extension tube (23) through the connecting sleeve (25).

8. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 4, characterized in that: A partition (29) is fixedly connected to the dental brace (28), and the partition (29) has several round holes.

9. The adjustable oral care and negative pressure irrigation integrated system for critically ill patients according to claim 7, characterized in that: The opposing surfaces of the dental brace (28) are fixedly connected with several bristles (30), and several through holes (31) are opened on the side of the upper guide tube (26) and the lower guide tube (27) away from the connecting tube.