Airway unobstructing device

By designing an airway patency device with a controller and a display, combining a syringe to dilute sputum and blood clots, and using an endoscope to assist in the operation, the problem of inefficiency in the existing airway paving device in dealing with thick sputum and stubborn blood clots is solved, achieving more efficient airway cleaning and reducing damage to the airway mucosa.

CN222676920UActive Publication Date: 2025-03-28THE 922ND HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202421043407.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-03-28
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The existing airway clearance device is inefficient when dealing with thick sputum and stubborn blood clots, and cannot be cleaned up at one time, which affects the rescue efficiency of critically ill patients.

Method used

An airway patency device is designed, including a suction tube, a controller and a display. It reminds medical staff to operate normally by setting up timing modules and speakers. It combines a syringe to dilute sputum and blood clots, reduces its viscosity, and assists visual operation through an endoscope.

Benefits of technology

It improves the efficiency of the use of airway patency device, reduces damage to the airway mucosa, and can more effectively clean up thick sputum and stubborn blood clots, improving the rescue efficiency of critically ill patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an airway unobstructing device, and relates to the technical field of medical instruments. The sputum suction device comprises a sputum suction tube, a split ring, an injector, a sputum aspirator, a controller and a display, and is characterized in that a negative pressure tube is fixed on one side of the sputum suction tube through a tube hoop, the lower end of the negative pressure tube penetrates through a base and is communicated with a sputum storage tank of the sputum aspirator, and a case for mounting the controller and the display is fixed at the upper end of a shell. The controller is in circuit connection with the display and the sputum suction machine through wires. The controller is arranged to be matched with the displayer and the sputum suction machine, so that medical staff can conduct visual operation according to the use rule of the sputum suction pipe, and in consideration of the situation that due to blockage, sputum and blood clots are sticky and not prone to being sucked out, diluent for diluting the blood clots or the sputum is injected into the liquid supply channel through the injector; therefore, the sputum concentration is reduced, large blood clots are lessened, and negative pressure can be conveniently led out.
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Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and in particular relates to an airway clearing device. Background Art

[0002] The Department of Critical Care Medicine is the Emergency Intensive Care Unit, or ICU for short. Its main business scope includes the rescue and continuous life support of critically ill patients, the treatment and organ function support of patients with multiple organ dysfunction, and the prevention and treatment of multiple organ dysfunction syndrome. In the Department of Critical Care Medicine, the most common medical treatment is respiratory management and respiratory support for patients with acute respiratory insufficiency and other various acute and critical patients. However, the ventilators currently used must ensure that the airway is unobstructed to work effectively. Many patients in the Department of Critical Care Medicine often have respiratory tract obstructions such as sputum or blood clots, which affects the implementation of respiratory support treatments and brings great inconvenience to doctors and patients.

[0003] Existing airway unclogging devices usually use a disposable sputum suction tube, one end of which is connected to a negative pressure device, and the other end is inserted into the airway from the patient's mouth and nose and then slowly pulled out. During the pulling out process, the sputum and blood clots in the trachea are sucked out by the negative pressure at the entrance of the sputum suction tube, so as to achieve the effect of unblocking the airway. However, the sputum suction tube shall not be used for more than fifteen seconds each time, and must be used at intervals of 3 to 5 minutes. Thick sputum and stubborn blood clots cannot be cleaned up at one time, which will affect the efficiency of rescue to a certain extent. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an airway unblocking device.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] An airway patency device comprises a sputum suction tube, an open ring, a syringe, a sputum suction machine, a controller and a display, wherein a negative pressure tube is fixed to one side of the sputum suction tube through a tube clamp, the lower end of the negative pressure tube passes through a base and is connected to a sputum storage tank of the sputum suction machine, a chassis for installing a controller and a display is fixed to the upper end of the shell, and the controller is connected to the display and the sputum suction machine circuit respectively through wires;

[0007] A negative pressure cavity for sputum suction is provided in the middle of the sputum suction tube, and an oxygen supply channel for oxygen delivery, a liquid supply channel for diluent delivery, a drug channel for therapeutic drug delivery, and a functional cavity for installing a lighting lamp and an endoscope lens are also provided on the tube wall of the sputum suction tube;

[0008] A rubber sleeve for inserting a C-shaped reinforced liner is fixedly installed on the outer side wall of one end of the sputum suction tube, and an opening ring for propping open the patient's mouth is sleeved on the outside of the rubber sleeve.

[0009] Optionally, the front surface of the controller is provided with a control panel for medical staff to operate, the control panel is connected to the controller circuit through wires, a main board is provided inside the controller, and a single-chip microcomputer, a speaker, a storage module and a backup power supply module are provided at the front end of the main board.

[0010] Optionally, the interface ends of the liquid supply channel and the medicine channel are provided with screw holes for threaded connection of connecting tubes, medical one-way valves are installed in the middle of the two connecting tubes, and syringes are inserted at the tail ends of the two connecting tubes.

[0011] Optionally, a transparent protective cover is fixed to one end of the functional cavity to prevent sputum from blocking the endoscope lens' line of sight, an anti-fogging film is coated on the surface of the transparent protective cover, and the endoscope lens and the lighting lamp are both connected to the display through wires passing through the other end of the functional cavity.

[0012] Optionally, an external oxygen supply tube is installed at the interface end of the oxygen supply channel.

[0013] Optionally, the interior of the open ring is respectively provided with an upper ball and a lower ball that contact the suction tube, and the upper ball is installed on the lower surface of the pressure plate, and the upper end of the pressure plate is fixed with a sleeve rod for sleeve-connecting the connecting rod, and the interior of the sleeve rod is provided with a return spring that contacts the bottom of the connecting rod.

[0014] Optionally, L-shaped strips for the T-shaped clamping blocks to be clamped are symmetrically fixed to the upper and lower ends of the open ring, and L-shaped brackets for contacting the patient's teeth are fixedly installed on the outer sides of the two T-shaped brackets, and anti-slip strips are fixed inside the two L-shaped brackets.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] 1. The utility model provides a controller to cooperate with the display and the suction machine, which facilitates the medical staff to operate according to the use rules of the suction tube, that is, the suction tube shall not be used for more than fifteen seconds each time, and must be used at intervals of 3 to 5 minutes. The single-chip microcomputer inside the controller will be used to execute the timing module. Every time the suction machine works for 15 seconds, it will automatically shut down, and the interval between multiple uses of the suction tube will be 3 or 5 minutes. Each time the suction tube can be used, a sound will be issued through the speaker to remind the medical staff, standardize the use requirements of the equipment, avoid the situation where the negative pressure time process causes damage to the airway mucosa, and consider Taking into account the stickiness of sputum and blood clots caused by blockage and difficult to aspirate, a diluent used to dilute blood clots or sputum will be injected into the liquid supply channel through a syringe, thereby reducing the viscosity of the sputum and flushing out large blood clots to make them smaller, so as to facilitate the introduction of negative pressure. In addition, taking into account the scratches on the airway wall adsorbed by the suction tube after negative pressure suction, a syringe will be used to inject therapeutic drugs into the medicine cavity. Finally, in order to assist medical staff in completing precise suction operations, a functional cavity for inserting a fill light and an endoscope lens is set inside the wall of the suction tube, so that medical staff can perform visual operations on the suction tube after connecting an external monitor.

[0017] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a structural diagram of the combined parts of the open ring, L-shaped support and pressure plate in the utility model;

[0021] Figure 3 This is a structural diagram of the combined parts of the controller, control panel and speaker in the utility model;

[0022] Figure 4 This is a structural diagram of the combined parts of the sputum suction tube, the functional cavity and the liquid supply channel in the utility model;

[0023] Figure 5 This is a structural diagram of the combined parts of the L-shaped support and the anti-slip strip in the utility model;

[0024] Figure 6 It is a structural diagram of the combined parts of the split ring and the L-shaped strip in the utility model;

[0025] Figure 7 for Figure 1 Schematic diagram of the structure of the A part;

[0026] Figure 8 for Figure 1 Schematic diagram of the structure of the B part;

[0027] Fig. 9 for Figure 1 Schematic diagram of the C part structure.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Suction tube; 2. Negative pressure tube; 3. Sputum storage tank; 4. Shell; 5. Controller; 6. Display; 7. Chassis; 8. Negative pressure chamber; 9. Oxygen supply channel; 10. Liquid supply channel; 11. Drug channel; 12. Functional chamber; 13. C-type reinforced lining; 14. Rubber sleeve; 15. Open ring; 16. Control panel; 17. Single chip microcomputer; 18. Speaker; 19. Storage module; 20. Backup power module; 21. Connecting pipe; 22. Medical one-way valve; 23. Syringe; 24. Perspective protective cover; 25. Illumination lamp; 26. Endoscopic lens; 27. External oxygen supply tube; 28. Upper ball bearing; 29. ​​Lower ball bearing; 30. Connecting rod; 31. Sleeve rod; 32. Reset spring; 33. T-type block; 34. L-type bar; 35. L-type support; 36. Anti-slip strip.

[0030] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] The utility model is now described in further detail with reference to the accompanying drawings.

[0032] See also Figures 1 to 9 The utility model provides a technical solution: an airway unblocking device, comprising a sputum suction tube 1, an open ring 15, a syringe 23, a sputum suction machine, a controller 5 and a display 6. A negative pressure tube 2 is fixed to one side of the sputum suction tube 1 through a pipe clamp, the lower end of the negative pressure tube 2 passes through the base and is connected to the sputum storage tank 3 of the sputum suction machine, a chassis 7 for installing the controller 5 and the display 6 is fixed to the upper end of the shell 4, and the controller 5 is connected to the display 6 and the sputum suction machine circuit respectively through wires;

[0033] A negative pressure cavity 8 for sputum suction is provided in the middle of the sputum suction tube 1, and an oxygen supply channel 9 for oxygen delivery, a liquid supply channel 10 for diluent delivery, a drug channel 11 for therapeutic drug delivery, and a functional cavity 12 for installing an illumination lamp 25 and an endoscope lens 26 are also provided on the tube wall of the sputum suction tube 1;

[0034] A rubber sleeve 14 for inserting the C-shaped reinforced liner 13 is fixedly installed on the outer wall of one end of the suction tube 1, and an open ring 15 for opening the patient's mouth is sleeved on the outside of the rubber sleeve 14. Considering that the existing airway patency device usually adopts a disposable suction tube 1, one end of which is connected to a negative pressure device, and the other end is inserted into the airway from the patient's mouth and nose, and then slowly raised. During the raising process, the sputum and blood clots in the trachea are sucked by the negative pressure at the entrance of the suction tube 1, so as to achieve the effect of unblocking the airway. However, the suction tube 1 shall not be used for more than fifteen seconds each time, and must be used at intervals of 3 to 5 minutes. Thick sputum and stubborn blood clots cannot be cleaned up at one time. The utility model provides a controller 5 to cooperate with the display 6 and the sputum suction machine, which is convenient for medical staff to operate according to the use rules of the sputum suction tube 1, that is, the sputum suction tube 1 shall not be used for more than fifteen seconds each time, and must be used at intervals of 3 to 5 minutes. The single-chip microcomputer 17 inside the controller 5 will be used to execute the timing module. Whenever the sputum suction machine works for 15 seconds, it will automatically shut down, and the interval between multiple uses of the sputum suction tube 1 will be 3 or 5 minutes. It is avoided that the negative pressure time process causes damage to the airway mucosa, and considering that the sputum and blood clots blocking the airway are viscous and difficult to be sucked out, the sputum suction tube 1 will be sucked out through the syringe. 23 is used to inject diluent into the liquid supply channel 10 to dilute blood clots or sputum, thereby reducing the viscosity of sputum and washing away large blood clots to make them smaller, so as to facilitate the introduction of negative pressure. In addition, considering that the airway wall adsorbed by the suction tube 1 after negative pressure suction is scratched, the syringe 23 is used to inject therapeutic agents into the medicine cavity. Finally, in order to assist medical staff in completing precise suction operations, a functional cavity 12 for inserting a fill light and an endoscope lens 26 is provided inside the wall of the suction tube 1, so that medical staff can visually operate the suction tube 1 after connecting to an external display 6. The presence of the C-type reinforced lining 13 helps medical staff know the suction tube 1. The implantation depth, that is, only the area where the C-type reinforced liner 13 is inserted into the rubber sleeve 14 is a hard pipe, and the pipe itself without the support of the C-type reinforced liner 13 is soft. When the suction tube 1 is inserted too deep into the airway, the soft suction tube 1 will be reset by the reset spring 32, causing the pressure plate to press the suction tube 1. At this time, the position of the suction tube 1 is fixed and cannot continue to penetrate into the airway. Therefore, it plays a certain role in protecting the patient's airway. Later, the suction position of most of the patients' airway can be investigated to adjust the installation position of the C-type reinforced liner 13. That is, when designing the suction tube 1, the position of the rubber sleeve 14 and the suction tube 1 is adjusted according to the data structure to complete the adaptation.

[0035] Among them, the front end surface of the controller 5 is provided with a control panel 16 for medical staff to operate. The control panel 16 is connected to the controller 5 circuit through a wire. A main board is provided inside the controller 5, and a single-chip computer 17, a speaker 18, a storage module 19 and a backup power supply module 20 are provided at the front end of the main board. By setting up the controller 5, the standardization of the operation of medical staff when using the suction tube 1 for suction is standardized. The suction tube 1 shall not be used for more than fifteen seconds each time, and must be used at intervals of 3 to 5 minutes. That is, the timing function of the built-in single-chip computer 17 of the controller 5 is used to time the working time of the suction machine, and the speaker 18 will be used to give a sound prompt when the time is reached.

[0036] Among them, the interface ends of the liquid supply channel 10 and the medicine channel 11 are both provided with screw holes for threaded connection of the connecting tube 21, medical one-way valves 22 are installed in the middle of the two connecting tubes 21, and syringes 23 are inserted at the tail ends of the two connecting tubes 21. By setting the connecting tube 21, the liquid supply channel 10 and the medicine channel 11 can be connected to the syringe 23.

[0037] Among them, a transparent protective cover 24 is fixed at one end of the functional cavity 12 to prevent sputum from blocking the line of sight of the endoscope lens 26. An anti-fogging film is coated on the surface of the transparent protective cover 24, and the endoscope lens 26 and the lighting lamp 25 are both passed through the other end of the functional cavity 12 by wires and connected to the display 6. In order to facilitate medical staff to know the location of sputum or blood clots inside the airway, the medical staff will perform visual operations with the help of the endoscope lens 26. In addition, the presence of the anti-fogging film on the transparent protective cover protects the lens from being fogged due to the temperature difference inside the airway after it is placed in the patient's airway, and the fogging affects the field of view provided by the endoscope lens 26.

[0038] Among them, an external oxygen supply tube 27 is installed at the interface end of the oxygen supply channel 9, and the oxygen supply tube is provided to temporarily supply oxygen to the patient's airway.

[0039] Among them, the interior of the open ring 15 is respectively provided with an upper ball 28 and a lower ball 29 that are in contact with the suction tube 1, and the upper ball 28 is installed on the lower surface of the pressure plate, and the upper end of the pressure plate is fixed with a sleeve rod 31 for sleeve-connecting the connecting rod 30, and a return spring 32 that contacts the bottom of the connecting rod 30 is provided inside the sleeve rod 31. By arranging the upper ball 28 and the lower ball 29, the smoothness between the inner wall of the buckle ring and the outer rubber sleeve 14 of the suction tube 1 is increased, so that when the medical staff inserts the suction tube 1, the upper ball 28 and the lower ball 29 will reduce the friction.

[0040] Among them, L-shaped strips 34 for the T-shaped block 33 to be clamped are symmetrically fixed at the upper and lower ends of the open ring 15, and L-shaped brackets 35 for contacting the patient's teeth are fixedly installed on the outer sides of the two T-shaped blocks 33, and anti-slip strips 36 are fixed inside the two L-shaped brackets 35. By setting a snap ring and adopting a connection method of clamping the T-shaped block 33 to the L-shaped strip, it is convenient for medical staff to quickly install the disposable L-shaped bracket 35 on the open ring 15. The open structure supports the patient's mouth and facilitates medical staff to insert the suction tube 1.

[0041] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An airway patency device, comprising a sputum suction tube (1), an open ring (15), a syringe (23), a sputum suction device, a controller (5) and a display (6), characterized in that: A negative pressure tube (2) is fixed to one side of the sputum suction tube (1) via a tube clamp, the lower end of the negative pressure tube (2) passes through the base and is connected to the sputum storage tank (3) of the sputum suction machine, a chassis (7) for mounting a controller (5) and a display (6) is fixed to the upper end of the shell (4), and the controller (5) is connected to the display (6) and the circuit of the sputum suction machine via wires; The sputum suction tube (1) has a negative pressure chamber (8) in the middle thereof for suctioning sputum, and the tube wall of the sputum suction tube (1) is also provided with an oxygen supply channel (9) for oxygen delivery, a liquid supply channel (10) for diluent delivery, a drug channel (11) for therapeutic drug delivery, and a functional chamber (12) for mounting an illumination lamp (25) and an endoscope lens (26); A rubber sleeve (14) for inserting the C-shaped reinforced liner (13) is fixedly mounted on the outer wall of one end of the sputum suction tube (1), and an opening ring (15) for opening the patient's mouth is sleeved on the outside of the rubber sleeve (14).

2. An airway patency device according to claim 1, characterized in that: The front surface of the controller (5) is provided with a control panel (16) for operation by medical personnel, and the control panel (16) is connected to the circuit of the controller (5) via a wire. A main board is provided inside the controller (5), and a single-chip computer (17), a speaker (18), a storage module (19), and a backup power supply module (20) are provided at the front end of the main board.

3. An airway patency device according to claim 1, characterized in that: The interface ends of the liquid supply channel (10) and the medicine channel (11) are both provided with screw holes for threaded connection of the connecting tube (21), a medical one-way valve (22) is installed in the middle of the two connecting tubes (21), and a syringe (23) is inserted at the tail end of the two connecting tubes (21).

4. The airway patency device according to claim 1, characterized in that: A perspective protective cover (24) is fixed to one end of the functional cavity (12) to prevent sputum from blocking the line of sight of the endoscope lens (26), and an anti-fogging film is coated on the surface of the perspective protective cover (24). The endoscope lens (26) and the lighting lamp (25) are both connected to the display (6) through wires passing through the other end of the functional cavity (12).

5. The airway patency device according to claim 1, characterized in that: An external oxygen supply tube (27) is installed at the interface end of the oxygen supply channel (9).

6. An airway patency device according to claim 1, characterized in that: An upper ball (28) and a lower ball (29) that are in contact with the sputum suction tube (1) are respectively arranged inside the open ring (15), and the upper ball (28) is mounted on the lower surface of the pressure plate. A sleeve rod (31) for sleeve-connecting the connecting rod (30) is fixed to the upper end of the pressure plate, and a return spring (32) that contacts the bottom of the connecting rod (30) is arranged inside the sleeve rod (31).

7. An airway patency device according to claim 1, characterized in that: L-shaped strips (34) for clamping the T-shaped clamping block (33) are symmetrically fixed at the upper and lower ends of the open ring (15), and L-shaped brackets (35) for contacting the patient's teeth are fixedly installed on the outer sides of the two T-shaped clamping blocks (33), and anti-slip strips (36) are fixed inside the two L-shaped brackets (35).