Injury-preventing oral suction tube for trachea cannula patient

CN224441497UActive Publication Date: 2026-07-03QILU HOSPITAL(QINGDAO) CHEELOO COLLEGE OF MEDICINE SHANDONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QILU HOSPITAL(QINGDAO) CHEELOO COLLEGE OF MEDICINE SHANDONG UNIV
Filing Date
2025-07-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing suction catheters are prone to causing oral mucosal damage, bleeding, and inflammation when clearing saliva from endotracheally intubated patients, and there is a lack of specialized suction catheters to prevent damage.

Method used

A damage-resistant oral suction tube for endotracheal intubation patients has been designed, including a main tube, a suction end, a connecting connector, and a sealing plug. The suction end has multiple elongated suction ports, which are fixed to the endotracheal tube by a limiting connection structure. Suction is performed using a negative pressure device, and the sealing plug controls the through holes. The suction time is controlled within 10-15 seconds.

Benefits of technology

It effectively avoids mucosal damage caused by concentrated negative pressure, reduces the risk of mucosal damage, and achieves more thorough saliva suction by dispersing negative pressure, thus reducing hypoxia complications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of oral cavity suction tube for preventing injury of tracheal intubation patient, including main body pipe, suction end, connecting joint and sealing plug;Wherein, suction end is connected in one end of main body pipe, is equipped with suction opening, with several long strip suction ports;Connecting joint one end is connected in the other end of main body pipe, the other end is connected with negative pressure equipment, and control through-hole is opened on connecting joint;Sealing plug can be inserted with control through-hole pluggably, to seal or open control through-hole. When using, suction end is placed in the lowest position of patient oral cavity, then main body pipe is connected together with tracheal intubation, finally connecting joint is connected with negative pressure equipment;After being connected, start negative pressure equipment, use sealing plug to seal control through-hole, make suction end form negative pressure, and carry out suction.The utility model's suction tube can disperse negative pressure by multiple long strip suction ports, avoid adsorbing oral cavity mucosa due to local negative pressure being too high, to reduce mucosa injury risk.
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Description

Technical Field

[0001] This utility model relates to the field of suction tube technology, specifically to a damage-resistant oral suction tube for endotracheal intubation patients. Background Technology

[0002] Endotracheal intubation is a critical medical procedure that involves inserting a specially designed tube through the mouth or nose into a patient's trachea. It is primarily used to establish a reliable artificial airway and ensure ventilation. Its core purpose is to ensure oxygen supply and carbon dioxide removal for critically ill, anesthetized, or respiratory failure patients; it is a life-saving measure in cases of cardiac arrest, severe respiratory distress, loss of airway protective reflexes, general anesthesia, and the need for prolonged mechanical ventilation.

[0003] In clinical practice, intubated patients often experience excessive saliva production and are unable to swallow voluntarily. If saliva flows into the lungs, it can easily lead to ventilator-associated pneumonia. Therefore, effectively clearing saliva from the patient's mouth is a crucial protective measure. Currently, there is a lack of specialized tubing for external saliva suction in clinical settings, and healthcare professionals typically use suction catheters to clear saliva from the mouth. However, suction catheters (containing a main suction port and two auxiliary suction ports on either side) are designed primarily for suctioning relatively viscous sputum, hence their suction force is usually quite strong. When using a suction catheter to suction relatively thin saliva from the mouth, if the main suction port or any of the auxiliary suction ports comes into close contact with the patient's oral mucosa during suction, the strong negative pressure of the suction catheter can instantly and forcefully adhere the mucosal tissue to the suction port. This unintended adhesion can easily cause mucosal damage, bleeding, and may even lead to adverse consequences such as local pain, inflammation, or secondary infections.

[0004] Therefore, how to design a suction tube that can avoid damage to the oral mucosa during the suction process is a technical problem that has not yet been solved in the existing technology. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects of the existing suction tubes, which are prone to adsorbing the oral mucosa, causing mucosal damage, bleeding, and even potentially causing adverse consequences such as local pain, inflammation or secondary infection. Thus, this utility model provides a damage-proof oral suction tube for endotracheal intubation patients that can avoid damage to the oral mucosa during the suction process.

[0006] Therefore, this utility model provides a damage-resistant oral suction tube for endotracheal intubation patients, comprising:

[0007] Main pipe;

[0008] The liquid suction end is hollow and open at both ends. One end is fixedly connected to one end of the main tube, and the other end is provided with a liquid suction opening. The liquid suction end is provided with several long liquid suction ports that communicate with the inner cavity.

[0009] The connector is hollow and open at both ends. One end is fixedly connected to the other end of the main tube, and the other end is suitable for connecting to an external negative pressure device. The connector is provided with a control through hole.

[0010] A sealing plug is pluggable into the control through hole to seal or open the control through hole.

[0011] As a preferred embodiment, one end of the main tube extends a certain length inside the liquid suction end in the direction of the liquid suction opening, and extends to a position close to the liquid suction opening.

[0012] As a preferred embodiment, the main tube is adapted to be connected to a selected position of the endotracheal tube via a limiting connection structure, thereby fixing the position of the main tube;

[0013] The limiting connection structure includes:

[0014] The clamping component is hollow and open at both ends, and can be movably fitted onto the main body tube;

[0015] The extrusion sleeve is movably sleeved on the main body tube and can be screwed to the clamping member to extrude the clamping member, thereby limiting and fixing the clamping member on the main body tube;

[0016] Two connecting rings are fixedly installed on both sides of the extrusion sleeve;

[0017] One end of the connecting strap is passed through the connecting ring and then folded in the opposite direction. Together with the other end of the connecting strap, they are tied at a selected position on the endotracheal tube, thereby connecting the main tube to the endotracheal tube.

[0018] As a preferred embodiment, the clamping member is formed with at least four clamping clips, which are capable of elastic deformation; after the extrusion sleeve is screwed to the clamping member, the inner wall of the sleeve presses the clamping clips inward, so that the clamping clips clamp and fix the main tube, thereby limiting and fixing the clamping member on the main tube.

[0019] As a preferred embodiment, the outer wall of the clamping member is provided with an external thread, and the inner wall of the extrusion sleeve is provided with an internal thread. The internal thread and the external thread are screwed together, thereby enabling the extrusion sleeve and the clamping member to be threaded together.

[0020] As a preferred embodiment, the outer wall of the limiting ring of the clamping member is provided with anti-slip texture.

[0021] As a preferred embodiment, numerical scale lines are provided on the outer wall of the main tube.

[0022] As a preferred embodiment, at least two anti-slip rings are formed on a section of the outer wall at one end of the connector, and several anti-slip flanges are formed on a section of the outer wall at the other end.

[0023] As a preferred embodiment, a sealing tube is formed on the control through hole, and the sealing plug can be plugged into the sealing tube in a pluggable manner, thereby sealing or opening the control through hole.

[0024] As a preferred embodiment, the sealing plug is fixedly connected to the sealing tube via a connecting structure;

[0025] The connection structure includes:

[0026] A connecting piece is formed on the outer wall of the free end of the sealing tube;

[0027] The connecting strip, made of flexible material, is fixedly connected at one end to the connecting piece and at the other end to the sealing plug, thereby fixing the sealing plug to the sealing tube.

[0028] The technical solution provided by this utility model has the following advantages:

[0029] This utility model discloses a damage-resistant oral suction tube for endotracheal intubation patients, comprising a main tube, a suction end, a connecting connector, and a sealing plug. The suction end is hollow and open at both ends, with one end fixedly connected to one end of the main tube and the other end having a suction opening. The suction end has several elongated suction ports communicating with the inner cavity. The connecting connector is hollow and open at both ends, with one end fixedly connected to the other end of the main tube and the other end suitable for connecting to an external negative pressure device. The connecting connector has a control through-hole. The sealing plug can be plugged into the control through-hole in a removable manner, thereby sealing or opening the control through-hole.

[0030] When using this device on intubated patients, place the suction tip at the lowest point in the patient's mouth. Then connect the main tube to the endotracheal tube to restrict the position of the main tube, thereby restricting the position of the suction tip in the patient's mouth. Finally, connect the other end of the connector to the negative pressure device. After connection, activate the negative pressure device and seal the control port with the sealing plug to create negative pressure at the suction tip for suction. During suction, multiple long suction ports disperse the negative pressure, preventing it from concentrating and adhering to the oral mucosa, thus reducing the risk of mucosal damage. Each suction should be completed within 10-15 seconds. Medical staff must promptly remove the sealing plug or turn off the negative pressure device to release the negative pressure and avoid complications such as hypoxia due to prolonged suction time.

[0031] This invention relates to an oral suction tube for endotracheal intubation patients, which is designed to prevent damage. Through multiple long suction ports, it can disperse negative pressure and avoid adsorption of oral mucosa due to excessive local negative pressure, thereby reducing the risk of mucosal damage. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0033] Figure 1 This is a schematic diagram of the overall structure of the anti-damage oral suction tube for endotracheal intubation patients according to this utility model.

[0034] Figure 2 yes Figure 1 Enlarged structural diagram of part A.

[0035] Figure 3 yes Figure 2 A sectional view.

[0036] Figure 4 yes Figure 1 Enlarged structural diagram of section B.

[0037] Figure 5 yes Figure 1 A schematic diagram of the structure of the clamping component and the extrusion sleeve before assembly.

[0038] Reference numerals: 1. Main tube; 11. Clamping component; 12. Extrusion sleeve; 13. Connecting ring; 14. Clamping clip; 15. Limiting ring; 16. Anti-slip texture; 17. Numerical scale line; 2. Suction end; 21. Suction opening; 22. Long suction port; 3. Connecting joint; 31. Control through hole; 32. Anti-slip ring; 33. Anti-slip flange; 34. Sealing tube; 4. Sealing plug; 41. Connecting piece; 42. Connecting strip. Detailed Implementation

[0039] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0040] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0041] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0042] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0043] This embodiment provides a damage-resistant oral suction tube for endotracheal intubation patients, such as... Figure 1-2 As shown, it includes: a main tube 1, a suction end 2, a connecting joint 3, and a sealing plug 4; wherein, the suction end 2 is hollow and open at both ends, one end is fixedly connected to one end of the main tube 1, and the other end is provided with a suction opening 21; the suction end 2 has several elongated suction ports 22 communicating with the inner cavity; the connecting joint 3 is hollow and open at both ends, one end is fixedly connected to the other end of the main tube 1, and the other end is suitable for connecting to an external negative pressure device, and the connecting joint 3 has a control through hole 31; the sealing plug 4 can be plugged into the control through hole 31 in a pluggable manner, thereby sealing or opening the control through hole 31.

[0044] When using this device on patients with endotracheal intubation, place the suction tip 2 at the lowest point in the patient's mouth. Then, connect the main tube 1 to the endotracheal tube to restrict the position of the main tube 1, thereby restricting the position of the suction tip 2 in the patient's mouth. Finally, connect the connector 3 to the negative pressure device. After connection, activate the negative pressure device and seal the control port 31 with the sealing plug 4 to create negative pressure at the suction tip 2 for suction. During suction, multiple elongated suction ports 22 disperse the negative pressure, preventing it from concentrating and adhering to the oral mucosa, thus reducing the risk of mucosal damage. Each suction should be completed within 10-15 seconds. Medical staff must promptly remove the sealing plug 4 or turn off the negative pressure device to release the negative pressure and avoid complications such as hypoxia due to prolonged suction time.

[0045] The anti-damage oral suction tube for endotracheal intubation patients in this embodiment has a suction opening 21 and several elongated suction ports 22 on the suction end 2. When the suction end 2 is placed at the lowest position in the patient's mouth, saliva can enter the interior of the suction end 2 through the suction opening 21 and the elongated suction ports 22. The main tube 1 directly draws in the saliva that has entered the suction end 2. The amount of saliva inside the suction end 2 is reduced to the point that it cannot be drawn out through the main tube 1. The air in the oral cavity can enter through the suction opening 21 and the elongated suction ports 22. This can disperse the negative pressure and avoid excessive local negative pressure directly adsorbing the oral mucosa, thereby reducing the risk of mucosal damage.

[0046] like Figure 3 As shown, one end of the main tube 1 extends a certain length inside the suction end 2 towards the suction opening 21, and extends to a position close to the suction opening 21. The advantage of this setting is that even if the saliva does not completely submerge the suction end 2, as long as the saliva enters the suction end 2 and can submerge the end of the main tube 1, effective suction can be achieved, and the suction effect is better and more thorough.

[0047] like Figure 5 As shown, the main tube 1 is adapted to be connected to a selected position of the endotracheal tube via a limiting connection structure, thereby fixing the position of the main tube 1 and, consequently, fixing the position of the suction tip 2 within the patient's oral cavity. The limiting connection structure includes a clamping member 11, a compression sleeve 12, and connecting rings 13. The clamping member 11 is hollow and open at both ends, and is movably fitted onto the main tube 1. The compression sleeve 12 is movably fitted onto the main tube 1 and can be screwed onto the clamping member 11 to compress it, thereby limiting and fixing the clamping member 11 onto the main tube 1. Two connecting rings 13 are fixedly disposed on both sides of the compression sleeve 12. One end of a connecting strap passes through the connecting rings 13 and is folded back, then tied together with the other end of the connecting strap at the selected position of the endotracheal tube, thereby connecting the main tube 1 to the endotracheal tube. The endotracheal intubated patient needs to be repositioned every two hours. When repositioning, first disconnect the connecting strap to separate the main tube 1 from the endotracheal tube, and then remove the suction end 2. After repositioning is completed, place the suction end 2 back into the lowest position of the oral cavity corresponding to the new position, then pass one end of the connecting strap through the connecting ring 13 and fold it in the opposite direction, and tie it together with the other end of the connecting strap at the selected position of the endotracheal tube.

[0048] At least four clamping clips 14 are formed on the clamping member 11, and the clamping clips 14 are elastically deformable. After the extrusion sleeve 12 is screwed to the clamping member 11, the inner wall of the sleeve presses the clamping clips 14 inward, so that the clamping clips 14 clamp and fix the main body tube 1, thereby limiting and fixing the clamping member 11 on the main body tube 1.

[0049] The clamping member 11 has an external thread on its outer wall and the extrusion sleeve 12 has an internal thread on its inner wall. The extrusion sleeve 12 and the clamping member 11 can be threaded together by screwing the internal thread and the external thread together.

[0050] The outer wall of the limiting ring 15 of the clamping member 11 is provided with anti-slip texture 16. The outer diameter of the limiting ring 15 is larger than the inner diameter of the compression sleeve 12, which can limit the compression sleeve 12. In clinical operation, the gloves worn by medical staff often slip due to contact with liquid. The anti-slip texture 16 can increase the friction when operating the clamping member 11, ensuring stable operation.

[0051] Numerical scale lines 17 are provided on the outer wall of the main tube 1. Numerical scale lines 17 are used to help medical staff accurately control the insertion depth of the suction tip 2, avoiding insertion that is too deep (which may irritate the carina or enter the bronchus, causing severe coughing, bronchospasm or damage) or too shallow (which cannot effectively attract saliva).

[0052] like Figure 4 As shown, at least two anti-slip rings 32 are formed on a section of the outer wall of one end of the connector 3. The anti-slip rings 32 can improve the grip between medical staff and the connector 3, making it easier to operate the connector 3. Several anti-slip flanges 33 are formed on a section of the outer wall of the other end. The anti-slip flanges 33 can make the connector 3 tightly connected to the negative pressure equipment and not easy to slip off. In addition, the anti-slip flanges 33 increase the local strength of the connector 3 to a certain extent, making it less likely to deform or break when repeatedly inserted or pulled out or subjected to force.

[0053] A sealing tube 34 is formed on the control through hole 31, and the sealing plug 4 can be plugged into the sealing tube 34 to seal or open the control through hole 31.

[0054] The sealing plug 4 is fixedly connected to the sealing tube 34 via a connecting structure. The connecting structure includes a connecting piece 41 and a connecting strip 42. The connecting piece 41 is formed on the outer wall of the free end of the sealing tube 34. The connecting strip 42 is made of flexible material, with one end fixedly connected to the connecting piece 41 and the other end fixedly connected to the sealing plug 4, thereby fixing the sealing plug 4 to the sealing tube 34. The sealing plug 4 and the sealing tube 34 are connected together, ensuring that they remain connected during insertion and removal operations. This allows the sealing plug 4 to be quickly and accurately positioned and inserted into the sealing tube 34, avoiding the hassle of repeated searching during operation. Even after being removed, the sealing plug 4 remains connected to the sealing tube 34, preventing loss and improving operational efficiency and reliability.

[0055] The method of using the anti-damage oral suction tube for endotracheal intubation patients in this embodiment is as follows: When using it on an endotracheal intubation patient, place the suction tip 2 at the lowest position in the patient's mouth, then adjust the clamping member 11 and the squeezing sleeve 12 to a suitable position for connection with the endotracheal tube, and screw the squeezing sleeve 12 onto the clamping member 11. The clamping member 11 is fixed together with the main tube 1. Then, one end of the connecting strap is passed through the connecting ring 13 and folded in the opposite direction, and tied together with the other end of the connecting strap at the selected position of the endotracheal tube, thereby limiting the position of the suction tip 2 in the patient's mouth. Finally, connect the connecting connector 3 to the negative pressure device. After the connection is completed, start the negative pressure device, and then insert the sealing plug 4 into the sealing tube 34 to seal the control through hole 31, so that the suction tip 2 forms negative pressure for suction. During the suction process, the multiple long suction ports 22 can disperse the negative pressure and avoid suction of the oral mucosa due to the concentration of negative pressure, thereby reducing the risk of mucosal damage. Each suctioning session should be controlled within 10-15 seconds. Medical staff should promptly remove the sealing plug or turn off the negative pressure device to relieve the negative pressure and avoid complications such as hypoxia caused by excessive suctioning time.

[0056] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A damage-resistant oral suction tube for endotracheal intubation patients, characterized in that, include: Main tube (1); The liquid suction end (2) is hollow and has openings at both ends. One end is fixedly connected to one end of the main tube (1), and the other end is provided with a liquid suction opening (21). The liquid suction end (2) has several long liquid suction ports (22) that communicate with the inner cavity. The connecting joint (3) is hollow and open at both ends. One end is fixedly connected to the other end of the main tube (1), and the other end is suitable for connecting to an external negative pressure device. The connecting joint (3) is provided with a control through hole (31). The sealing plug (4) can be plugged into the control through hole (31) to seal or open the control through hole (31).

2. The oral suction tube for use with a tracheal tube according to claim 1, wherein: One end of the main tube (1) extends a certain length inside the liquid suction end (2) in the direction of the liquid suction opening (21), and extends to a position close to the liquid suction opening (21).

3. The oral suction tube for nasotracheal intubation patients according to claim 1, characterized in that: The main tube (1) is adapted to be connected to a selected position of the endotracheal tube through a limiting connection structure, thereby fixing the position of the main tube (1); The limiting connection structure includes: The clamping component (11) is hollow and open at both ends, and can be movably sleeved on the main tube (1); The extrusion sleeve (12) is movably sleeved on the main body tube (1) and can be screwed to the clamping member (11) to extrude the clamping member (11) and thereby limit and fix the clamping member (11) on the main body tube (1). There are two connecting rings (13), which are fixedly installed on both sides of the extrusion sleeve (12); After passing one end of the connecting strap through the connecting ring (13), it is folded in the opposite direction and tied together with the other end of the connecting strap at the selected position of the endotracheal tube, thereby connecting the main tube (1) to the endotracheal tube.

4. The oral suction tube for nasotracheal intubation patients according to claim 3, characterized in that: At least four clamping clips (14) are formed on the clamping member (11), and the clamping clips (14) are elastically deformable; after the extrusion sleeve (12) is screwed to the clamping member (11), the inner wall of the sleeve presses the clamping clips (14) inward, so that the clamping clips (14) clamp and fix the main tube (1), thereby limiting and fixing the clamping member (11) on the main tube (1).

5. The oral suction tube of claim 3, wherein: The clamping member (11) has an external thread on its outer wall and the extrusion sleeve (12) has an internal thread on its inner wall. The extrusion sleeve (12) and the clamping member (11) can be threaded together by screwing the internal thread and the external thread.

6. The anti-damage oral suction tube for endotracheal intubation patients according to claim 3, characterized in that: The retaining ring (15) of the clamping member (11) has an anti-slip texture (16) on its outer wall.

7. The oral suction tube of claim 1 wherein: Numerical scale lines (17) are provided on the outer wall of the main tube (1).

8. The oral suction tube of claim 1 wherein: At least two anti-slip rings (32) are formed on a section of the outer wall at one end of the connector (3), and several anti-slip flanges (33) are formed on a section of the outer wall at the other end.

9. The oral suction tube of claim 1 wherein: A sealing tube (34) is formed on the control through hole (31), and the sealing plug (4) can be plugged into the sealing tube (34) to seal or open the control through hole (31).

10. The oral suction tube for nasotracheal intubation patients according to claim 9, characterized in that: The sealing plug (4) is fixedly connected to the sealing tube (34) by a connecting structure; The connection structure includes: A connecting piece (41) is formed on the outer wall of the free end of the sealing tube (34); The connecting strip (42), made of flexible material, is fixedly connected at one end to the connecting piece (41) and at the other end to the sealing plug (4), thereby fixing the sealing plug (4) to the sealing tube (34).