A flexible sputum scab remover for pneumology department

By using a flexible brush and an expandable membrane design, the problem of existing sputum removers being unable to remove sticky sputum and damaging the respiratory tract has been solved, achieving a highly efficient and safe sputum removal effect.

CN116328054BActive Publication Date: 2026-04-14SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
Filing Date
2023-03-03
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing sputum removers, which use scrapers to remove viscous sputum, are ineffective at cleaning thick sputum and can easily damage the respiratory tract, affecting the cleaning effect and safety.

Method used

Employing a flexible brush rod and an expandable membrane structure, the high-speed rotation of the flexible brush rod and the drainage function of the expandable membrane, combined with the porous design of the suction head, achieve efficient cleaning of the respiratory tract and effective adsorption of sputum crusts.

Benefits of technology

It improves the efficiency and safety of sputum crust removal, reduces damage to the respiratory tract, and enhances safety while ensuring cleaning effectiveness.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116328054B_ABST
    Figure CN116328054B_ABST
Patent Text Reader

Abstract

The present application relates to the technical field of medical devices, and discloses a flexible sputum scab remover for pneumology department, which comprises an outer rod, the end of the outer rod is provided with a sputum suction head, the sputum suction head and the inner part of the outer rod are provided with a flow guide pipe, the inner part of the outer motor stator fixedly connected with the outer rod is rotatably connected with an inner rotor sleeve ring, the inner part of the inner rotor sleeve ring is threadedly connected with a threaded sleeve rod, and the end of the threaded sleeve rod is movably connected with an extension rod; the rotating ring is driven to rotate by the annular motor, the flexible brush rod is driven to rotate by the rotating ring, the flexible brush rod is used for cleaning the respiratory tract by high-speed rotation, the flexible brush rod is used for scraping, the damage degree of the respiratory tract is low due to the elastic colloid material of the flexible brush rod, the contact efficiency with sputum scab is improved by high-speed rotation, the flexible brush rod is used for cleaning, the cleaning efficiency and the cleaning effect of the device are effectively ensured, the damage of the flexible brush rod to the respiratory tract is reduced, and the cleaning safety of the flexible brush rod is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a flexible sputum remover for respiratory diseases. Background Technology

[0002] Airway crusts are a common problem in respiratory surgery. These crusts are solidified deposits formed from dried sputum within the respiratory tract and require timely removal. Current crust removal devices are inserted into the trachea and scraped off using a scraper at the end of the device. However, this method is ineffective for removing thick, sticky crusts adhering to the respiratory tract. Existing devices rely on a scraper for direct removal.

[0003] While existing sputum removers can achieve a certain cleaning effect by scraping, the direct scraping method can easily damage the patient's airway and may not completely remove the sputum. Therefore, existing sputum removers have certain defects in use and affect their effectiveness. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a flexible sputum remover for respiratory medicine, which has the advantages of good cleaning effect and minimal damage to the respiratory tract.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flexible sputum expectorant for respiratory medicine, comprising an outer rod, a suction head at the end of the outer rod, a guide tube inside the suction head and the outer rod, an external motor stator fixedly connected inside the outer rod, an inner rotor collar rotatably connected inside the external motor stator, a threaded sleeve rod threadedly connected inside the inner rotor collar, a telescopic rod movably connected to the end of the threaded sleeve rod, a suction head fixedly connected to the end of the telescopic rod, and a guide tube passing through the telescopic rod and the threaded sleeve rod to connect to an external suction pump;

[0006] The outer rod is provided with a side brushing mechanism and an outer sheath assembly, with the outer sheath assembly sleeved on the outside of the side brushing mechanism.

[0007] Preferably, the outer sheath assembly includes a telescopic pump fixedly connected to the outside of the outer rod, a control rod is provided outside the telescopic pump, and an outer sleeve ring is fixedly connected to the outside of the control rod and sleeved on the outside of the outer rod.

[0008] Preferably, the side brushing mechanism includes a ring motor fixedly connected to the outside of the outer rod. The output end of the ring motor is provided with a rotating ring, and a plurality of flexible brush rods are provided on the outside of the rotating ring. When the outer ring moves to the suction head side, the outer ring is sleeved on the outside of the flexible brush rods.

[0009] Preferably, the flexible brush rod is made of an elastic colloidal material. The flexible brush rod is used to rotate and scrub the respiratory tract, achieving high-speed cleaning and improving the cleaning effect by using high frequency instead of high force.

[0010] Preferably, the suction head includes a top suction port and a bottom suction port, and a scraper is provided on the top end face of the suction head. The guide tube includes a connecting tube and a telescopic tube. The end of the telescopic tube is fixedly connected to a side manifold and an end manifold. The side manifold is fixedly connected to a side branch tube that communicates with and is adapted to the bottom suction port. The side branch tube is provided with a side control valve for controlling closure. The end manifold is provided with an end branch tube that communicates with and is adapted to the top suction port. The end branch tube is provided with an end control valve for controlling closure.

[0011] Preferably, a positioning plate is fixedly connected inside the suction head, and a spreading rod is rotatably connected to the side of the suction head. A guide pulley is provided on the inner end of the spreading rod, and the guide pulley is slidably connected to the surface of the positioning plate. A connecting rod is rotatably connected to the inner end of the spreading rod. The positioning plate has a narrow groove, and the connecting rod extends through the narrow groove into the interior of the positioning plate. An adjuster is fixedly connected inside the positioning plate, and a movable ring is provided on the outside of the adjuster. The connecting rod and the movable ring are movably connected.

[0012] Preferably, at least six support rods are provided, which are symmetrically distributed on the outside of the suction head. A sealing block is provided at the connection between the support rod and the suction head. The positioning surface of the positioning plate is arc-shaped, and the guide pulley is slidably connected to the arc-shaped surface of the positioning plate.

[0013] Preferably, an expansion membrane is provided on the outside of the expansion rod. The expansion membrane is an elastic film. Both ends of the expansion membrane are fixedly connected to the movable end of the expansion rod and to the connection position of the expansion rod and the suction head. The expansion membrane is attached to the outside of the suction head and is located between the top suction hole and the bottom suction hole.

[0014] The steps for using a flexible sputum expectorant in respiratory medicine include:

[0015] S1. Control the external rod to place the suction head in the airway, and use the external rod to control the suction head to absorb sputum.

[0016] S2. Control the outer ring to move away from the suction head, so that the flexible brush rod is exposed outside the outer ring. The flexible brush rod pops outward under its own elastic recovery.

[0017] S3. The external motor stator and the inner rotor collar control the movement of the telescopic rod through the threaded sleeve, and the telescopic rod controls the adjustment position of the suction head.

[0018] S4. The regulator drives the movable ring to slide on the regulator. The movable ring drives the expansion rod to deflect through the connecting rod, controlling the expansion rod to flip outward towards the suction head, so that the expansion rod drives the expansion membrane to expand outward.

[0019] S5. The end control valve controls the end branch to close, and the side control valve controls the side branch to connect. The external suction pump draws sputum through the connecting pipe, telescopic pipe, side manifold, side branch and bottom suction hole.

[0020] S6. Start the ring motor. The ring motor drives the flexible brush rod to rotate through the rotating ring. The flexible brush rod cleans the sputum crusts by rotating and brushing. After cleaning, the sputum crusts are collected and disposed of through the bottom suction hole.

[0021] Beneficial effects:

[0022] 1. This flexible sputum remover for respiratory medicine and its usage method: A ring motor drives a rotating ring to rotate, which in turn drives a flexible brush rod to rotate. The flexible brush rod cleans the respiratory tract through high-speed rotation and scrapes off sputum. Because it is made of elastic gel material, it minimizes damage to the respiratory tract. The high-speed rotation also improves the contact efficiency with sputum, and the flexible brush rod effectively ensures the cleaning efficiency and effect of the device while reducing damage to the respiratory tract and improving the cleaning safety of the flexible brush rod.

[0023] 2. This flexible sputum remover for respiratory medicine and its usage method: When the outer ring moves outside the outer rod until the flexible brush rod is exposed, the regulator controls the movable ring to move upward. The movable ring, through the connecting rod, drives the expansion rod to deflect upward, and the expansion rod drives the expansion membrane to open. When adsorbing sputum crusts and sputum, the expanded membrane drains the cleaned sputum, facilitating the adsorption and removal of the cleaned sputum crusts, further improving the device's sputum crust removal effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the flexible brush rod of the present invention in the extended state;

[0025] Figure 2 This is a schematic cross-sectional view of the outer rod portion of the structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the suction head of the present invention;

[0027] Figure 4 This is a schematic diagram showing the connection of the end manifold, end branch pipe, and end control valve in the structure of the present invention;

[0028] Figure 5 The structure of this invention Figure 2 Enlarged schematic diagram of region A;

[0029] Figure 6 This is a schematic diagram of the support rod and connecting rod of the present invention;

[0030] Figure 7 This is a schematic diagram of the outer ring of the structure of the present invention being sleeved on the outside of the flexible brush rod.

[0031] In the diagram: 1. Outer rod; 2. Suction head; 21. Top suction port; 22. Scraper; 23. Bottom suction port; 24. Positioning plate; 25. Spreading rod; 26. Guide pulley; 27. Connecting rod; 28. Movable ring; 29. ​​Regulator; 210. Spreading membrane; 3. Guide tube; 31. Connecting tube; 32. Telescopic tube; 33. End manifold; 34. End branch tube; 341. End control valve; 35. Side manifold; 36. Side branch tube; 361. Side control valve; 4. External motor stator; 41. Inner rotor collar; 5. Threaded sleeve rod; 6. Telescopic rod; 7. Side brushing mechanism; 71. Ring motor; 72. Rotating ring; 73. Flexible brush rod; 8. Outer sheath assembly; 81. Telescopic pump; 82. Control rod; 83. Outer ring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figure 1-2 and Figure 7 A flexible sputum expectorant for respiratory diseases includes an outer rod 1, with a suction head 2 at the end of the outer rod 1. A guide tube 3 is provided inside the suction head 2 and the outer rod 1. An external motor stator 4 is fixedly connected inside the outer rod 1. An inner rotor collar 41 is rotatably connected inside the external motor stator 4. A threaded sleeve 5 is threadedly connected inside the inner rotor collar 41. A telescopic rod 6 is movably connected to the end of the threaded sleeve 5. The suction head 2 is fixedly connected to the end of the telescopic rod 6. The guide tube 3 passes through the telescopic rod 6 and the threaded sleeve 5 and connects to an external suction pump.

[0035] The outer rod 1 is provided with a side brushing mechanism 7 and an outer sheath assembly 8, which are sleeved on the outside of the side brushing mechanism 7.

[0036] The suction head 2 includes a top suction port 21 and a bottom suction port 23. A scraper 22 is provided on the top end face of the suction head 2. The guide tube 3 includes a connecting tube 31 and a telescopic tube 32. The end of the telescopic tube 32 is fixedly connected to a side manifold 35 and an end manifold 33. The side manifold 35 is fixedly connected to a side branch tube 36 that is adapted to communicate with the bottom suction port 23. The side branch tube 36 is provided with a side control valve 361 for controlling closure. The end manifold 33 is provided with an end branch tube 34 that is adapted to communicate with the top suction port 21. The end branch tube 34 is provided with an end control valve 341 for controlling closure.

[0037] The outer sheath assembly 8 includes a telescopic pump 81 fixedly connected to the outside of the outer rod 1. A control rod 82 is provided on the outside of the telescopic pump 81. An outer sleeve 83 is fixedly connected to the outside of the control rod 82 and sleeved on the outside of the outer rod 1.

[0038] The side brushing mechanism 7 includes a ring motor 71 fixedly connected to the outside of the outer rod 1. The output end of the ring motor 71 is provided with a rotating ring 72. Several flexible brush rods 73 are provided on the outside of the rotating ring 72. When the outer ring 83 moves to the side of the suction head 2, the outer ring 83 is sleeved on the outside of the flexible brush rods 73.

[0039] The flexible brush handle 73 is made of elastic gel material. It rotates and scrubs the respiratory tract, achieving high-speed cleaning by using high frequency instead of high force to improve cleaning effectiveness.

[0040] During initial cleaning, the outer ring 83 is fitted onto the outside of the rotating ring 72 and the flexible brush rod 73, and the suction head 2 is abutted against the end of the rotating ring 72. At the same time, the side control valve 361 is controlled to close the side branch pipe 36, and the end control valve 341 controls the end branch pipe 34 to open. The suction head 2 is controlled by the outer rod 1 to clean, and the scraper 22 set on the suction head 2 is used to scrape and clean. The sputum and sputum crusts are cleaned through the top suction hole 21 at the top of the suction head 2.

[0041] During deep cleaning, the telescopic pump 81 drives the outer ring 83 to move away from the suction head 2 via the control rod 82. The outer ring 83 exposes the rotating ring 72 and the flexible brush rod 73. At the same time, the outer motor stator 4 drives the inner rotor collar 41 to rotate. The inner rotor collar 41 drives the threaded sleeve 5 to move inside the outer rod 1. The threaded sleeve 5 drives the telescopic rod 6 to move. The telescopic rod 6 then drives the suction head 2 to adjust its extension and retraction length so that the bottom suction hole 23 of the suction head 2 fits against the end of the flexible brush rod 73.

[0042] The control ring motor 71 starts, driving the rotating ring 72 to rotate. The rotating ring 72 drives the flexible brush rod 73 to rotate. The flexible brush rod 73 cleans the respiratory tract through high-speed rotation. Because it is made of elastic gel material, it minimizes the damage to the respiratory tract. The high-speed rotation also improves the contact efficiency with phlegm crusts. The use of the flexible brush rod 73 for cleaning effectively ensures the cleaning efficiency and effect of the device, while reducing the damage to the respiratory tract and improving the cleaning safety of the flexible brush rod 73.

[0043] Example 2

[0044] Please see Figure 3-6 A flexible sputum expectorant for respiratory diseases includes an outer rod 1, with a suction head 2 at the end of the outer rod 1. A guide tube 3 is provided inside the suction head 2 and the outer rod 1. An external motor stator 4 is fixedly connected inside the outer rod 1. An inner rotor collar 41 is rotatably connected inside the external motor stator 4. A threaded sleeve 5 is threadedly connected inside the inner rotor collar 41. A telescopic rod 6 is movably connected to the end of the threaded sleeve 5. The suction head 2 is fixedly connected to the end of the telescopic rod 6. The guide tube 3 passes through the telescopic rod 6 and the threaded sleeve 5 and connects to an external suction pump.

[0045] The outer rod 1 is provided with a side brushing mechanism 7 and an outer sheath assembly 8, which are sleeved on the outside of the side brushing mechanism 7.

[0046] The suction head 2 includes a top suction port 21 and a bottom suction port 23. A scraper 22 is provided on the top end face of the suction head 2. The guide tube 3 includes a connecting tube 31 and a telescopic tube 32. A side manifold 35 and an end manifold 33 are fixedly connected to the end of the telescopic tube 32. A side branch tube 36, which is adapted to communicate with the bottom suction port 23, is fixedly connected to the outside of the side manifold 35. The side branch tube 36 is provided with a side control valve 361 for controlling closure. An end branch tube 34, which is adapted to communicate with the top suction port 21, is provided to the outside of the end manifold 33. The end branch tube 34 is provided with an end control valve 341 for controlling closure. Sputum is absorbed on both sides of the suction head 2 using the side manifold 35 and the end manifold 33, respectively. Intermittent control is achieved through the side control valve 361 and the end control valve 341, allowing the top suction port 21 and the bottom suction port 23 to operate independently.

[0047] The suction head 2 is internally fixedly connected to a positioning plate 24. A support rod 25 is rotatably connected to the side of the suction head 2. A guide pulley 26 is provided on the inner end of the support rod 25, and the guide pulley 26 is slidably connected to the surface of the positioning plate 24. A connecting rod 27 is rotatably connected to the inner end of the support rod 25. The positioning plate 24 has a narrow groove, through which the connecting rod 27 extends into the interior of the positioning plate 24. An adjuster 29 is fixedly connected inside the positioning plate 24. A movable ring 28 is provided on the outside of the adjuster 29. The connecting rod 27 and the movable ring 28 are movably connected. This allows the movable ring 28 to move up and down outside the adjuster 29 via the adjuster 29. The movable ring 28 drives the support rod 25 to rotate via the connecting rod 27, controlling the support rod 25 to deflect towards the suction head 2, or controlling the support rod 25 to deflect outwards away from the suction head 2.

[0048] Among them, at least six support rods 25 are provided, which are symmetrically distributed on the outside of the suction head 2. A sealing block is provided at the connection between the support rods 25 and the suction head 2. The positioning surface of the positioning plate 24 is arc-shaped, and the guide pulley 26 is slidably connected to the arc-shaped surface of the positioning plate 24.

[0049] The expansion rod 25 is provided with an expansion membrane 210. The expansion membrane 210 is an elastic film. Both ends of the expansion membrane 210 are fixedly connected to the movable end of the expansion rod 25 and to the connection position of the expansion rod 25 and the suction head 2. The expansion membrane 210 is attached to the outside of the suction head 2 and is located between the top suction hole 21 and the bottom suction hole 23.

[0050] Based on Embodiment 1, when the outer ring 83 moves outside the outer rod 1 until the flexible brush rod 73 is exposed, the regulator 29 controls the movable ring 28 to move upward. The movable ring 28 drives the spreading rod 25 to deflect upward through the connecting rod 27, and the spreading rod 25 drives the spreading membrane 210 to open.

[0051] When adsorbing sputum crusts and sputum, the membrane 210 is expanded to drain the cleaned sputum, which facilitates the adsorption and cleaning of the cleaned sputum crusts and further improves the cleaning effect of the device on sputum crusts.

[0052] Example 3

[0053] Please see Figure 1-7 A method for using a flexible sputum expectorant in respiratory medicine, comprising the following steps:

[0054] S1. Control the external rod 1 to place the suction head 2 in the airway, and use the external rod 1 to control the suction head 2 to absorb sputum;

[0055] S2. Control the outer ring 83 to move away from the suction head 2, and the flexible brush rod 73 is exposed outside the outer ring 83. The flexible brush rod 73 pops outward under its own elastic recovery action.

[0056] S3, the external motor stator 4 and the inner rotor collar 41 control the movement of the telescopic rod 6 through the threaded sleeve rod 5, and the telescopic rod 6 controls the position adjustment of the suction head 2;

[0057] S4. The regulator 29 drives the movable ring 28 to slide on the regulator 29. The movable ring 28 drives the expansion rod 25 to deflect through the connecting rod 27, controlling the expansion rod 25 to flip outward towards the suction head 2, so that the expansion rod 25 drives the expansion membrane 210 to expand outward.

[0058] S5. The end control valve 341 controls the end branch pipe 34 to close, and the side control valve 361 controls the side branch pipe 36 to connect. The external suction pump draws sputum through the connecting pipe 31, the telescopic pipe 32, the side manifold 35, the side branch pipe 36 and the bottom suction hole 23.

[0059] S6. Start the ring motor 71. The ring motor 71 drives the flexible brush rod 73 to rotate through the rotating ring 72. The flexible brush rod 73 cleans the sputum crust by rotating and brushing. After cleaning, the sputum crust is collected and cleaned through the bottom suction hole 23.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible sputum expectorant for respiratory diseases, comprising an outer rod (1), characterized in that: The outer rod (1) is provided with a suction head (2) at its end. The suction head (2) and the outer rod (1) are provided with a guide tube (3). The outer rod (1) is fixedly connected to an external motor stator (4). The external motor stator (4) is rotatably connected to an inner rotor collar (41). The inner rotor collar (41) is threadedly connected to a threaded sleeve rod (5). The end of the threaded sleeve rod (5) is movably connected to a telescopic rod (6). The suction head (2) is fixedly connected to the end of the telescopic rod (6). The guide tube (3) passes through the telescopic rod (6) and the threaded sleeve rod (5) to connect to an external suction pump. The outer rod (1) is provided with a side brushing mechanism (7) and an outer sheath assembly (8), and the outer sheath assembly (8) is sleeved on the outside of the side brushing mechanism (7); The suction head (2) includes a top suction hole (21) and a bottom suction hole (23). A scraper (22) is provided on the top end face of the suction head (2). The guide tube (3) includes a connecting tube (31) and a telescopic tube (32). A side manifold (35) and an end manifold (33) are fixedly connected to the end of the telescopic tube (32). A side branch tube (36) that communicates with and is adapted to the bottom suction hole (23) is fixedly connected to the outside of the side manifold (35). A side control valve (361) for controlling closure is provided on the side branch tube (36). An end branch tube (34) that communicates with and is adapted to the top suction hole (21) is provided on the outside of the end manifold (33). An end control valve (341) for controlling closure is provided on the end branch tube (34). The suction head (2) is fixedly connected to a positioning plate (24). A support rod (25) is rotatably connected to the side of the suction head (2). A guide pulley (26) is provided on the inner end of the support rod (25). The guide pulley (26) is slidably connected to the surface of the positioning plate (24). A connecting rod (27) is rotatably connected to the inner end of the support rod (25). The positioning plate (24) has a narrow groove. The connecting rod (27) extends through the narrow groove to the inside of the positioning plate (24). An adjuster (29) is fixedly connected to the inside of the positioning plate (24). A movable ring (28) is provided on the outside of the adjuster (29). The connecting rod (27) and the movable ring (28) are movably connected. At least six of the spreading rods (25) are provided, which are symmetrically distributed on the outside of the suction head (2). A sealing block is provided at the connection between the spreading rods (25) and the suction head (2). The positioning surface of the positioning plate (24) is arc-shaped, and the guide pulley (26) is slidably connected to the arc-shaped surface of the positioning plate (24).

2. The flexible sputum expectorant according to claim 1, characterized in that: The outer sheath assembly (8) includes a telescopic pump (81) fixedly connected to the outside of the outer rod (1), a control rod (82) is provided on the outside of the telescopic pump (81), and an outer sleeve (83) is fixedly connected to the outside of the control rod (82) and sleeved on the outside of the outer rod (1).

3. The flexible sputum expectorant according to claim 2, characterized in that: The side brushing mechanism (7) includes a ring motor (71) fixedly connected to the outside of the outer rod (1). The output end of the ring motor (71) is provided with a rotating ring (72). A number of flexible brush rods (73) are provided on the outside of the rotating ring (72). When the outer ring (83) moves to the side of the suction head (2), the outer ring (83) is sleeved on the outside of the flexible brush rods (73).

4. The flexible sputum expectorant according to claim 3, characterized in that: The flexible brush rod (73) is made of elastic colloid material.

5. A flexible sputum expectorant according to claim 4, characterized in that: The outside of the stretching rod (25) is provided with a stretching membrane (210). The stretching membrane (210) is an elastic film. The two ends of the stretching membrane (210) are fixedly connected to the movable end of the stretching rod (25) and fixedly connected to the connection position of the stretching rod (25) and the suction head (2). The stretching membrane (210) is attached to the outside of the suction head (2) and is located between the top suction hole (21) and the bottom suction hole (23).

Citation Information

Patent Citations

  • Sputum scab remover for pneumology department

    CN108852482A

  • Sputum scab remover for pneumology department

    CN110801541A

Cited By

  • Respiratory tract sputum scab cleaning device

    CN117695452A

  • A respiratory tract sputum crust cleaning device

    CN117695452B