Tracheal tube guiding device
By designing an endotracheal tube guide device, which combines a guide section and a buffer section, the problems of long endotracheal tube replacement time and patient discomfort are solved, enabling rapid and safe endotracheal tube replacement and reducing the risk of hypoxia.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA JAPAN FRIENDSHIP HOSPITAL
- Filing Date
- 2025-04-03
- Publication Date
- 2026-07-21
AI Technical Summary
Current technology requires a long time to change the endotracheal tube, causing great pain to the patient and potentially leading to hypoxia or suffocation, especially posing a high risk to patients with weak spontaneous breathing.
Design an endotracheal intubation guide device, including a guide part and a buffer part. The guide part is a regular columnar structure with an airway and support structure inside and a scale on the outside. The buffer part is used to protect the airway and allows for quick replacement of the endotracheal tube through the guide part.
It enables rapid and convenient replacement of endotracheal tubes, reducing patient suffering and the risk of hypoxia, and improving the safety and efficiency of the procedure.
Smart Images

Figure CN224523759U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to an endotracheal intubation guide device. Background Technology
[0002] Mechanical ventilation, aided by a ventilator, aims to maintain airway patency, improve ventilation and oxygenation, prevent hypoxia and carbon dioxide buildup, and create conditions for the body to overcome respiratory failure caused by underlying diseases, thus facilitating the treatment of those diseases. Mechanical ventilation is a ventilation method that uses mechanical devices to replace, control, or alter spontaneous breathing movements.
[0003] In the intensive care unit, we frequently encounter patients who have undergone prolonged mechanical ventilation via endotracheal intubation. If the cuff ruptures, the endotracheal tube becomes blocked by phlegm, or other reasons occur during the insertion of the endotracheal tube / tracheostomy cannula, it needs to be replaced promptly. The standard method for tube replacement is to remove the old endotracheal tube and then reinsert a new one using the usual intubation procedure. This method is time-consuming, causes significant patient discomfort, and can lead to severe hypoxia, respiratory depression, or asphyxia in patients with weak spontaneous breathing.
[0004] This utility model addresses the above-mentioned problems by providing a tracheal intubation guide device. Utility Model Content
[0005] In order to overcome the problems mentioned in the background art, the present invention provides a tracheal intubation guide device.
[0006] An endotracheal intubation guide device includes a guide portion and a buffer portion; the guide portion is a regular columnar structure; one end of the guide portion is fixedly connected to the buffer portion, and the other end is provided with a flexible tube; an airway is provided inside the guide portion; one end of the airway is connected to the buffer portion, and the other end is connected to the flexible tube; a support structure is provided inside the guide portion; the support structure is a regular columnar structure; the axis of the support structure is parallel to the axis of the guide portion.
[0007] Furthermore, the guide portion has a scale on its exterior.
[0008] Furthermore, the hose is fixedly connected to the guide portion.
[0009] Furthermore, the support structure is made of one or more of aluminum, iron, and copper.
[0010] Furthermore, the length of the guide portion is greater than 30cm.
[0011] Furthermore, a connector is provided at the end of the hose away from the guide section.
[0012] Furthermore, the connector includes a housing, a limiting ring, a piston, a reset structure, and a mounting ring; the limiting ring, piston, reset structure, and mounting ring are all disposed inside the housing; the limiting ring and mounting ring are fixedly connected to the housing; one end of the reset structure abuts against the mounting ring, and the other end presses the piston onto the limiting ring.
[0013] Furthermore, the piston has an internal vent hole; the inner wall of the outer shell has a sealing ring; when the reset structure presses the piston onto the limiting ring, one end of the vent hole is connected to the outside, and the other end is blocked by the sealing ring.
[0014] Furthermore, a guide rod is provided at the end of the piston away from the limiting ring; the guide rod passes through the mounting ring.
[0015] Furthermore, the reset structure is a spring.
[0016] How to use this utility model: 1. Connect the gas supply equipment to the connector; 2. Inflate the buffer section through the hose and airway; 3. Bend the guide section so that it can be inserted into the endotracheal tube; 4. Insert the guide into the endotracheal tube and fix it in the patient's airway, and record the scale readings; 5. Remove the existing endotracheal tube; 6. Place the new endotracheal tube over the outside of the guide section; 7. Insert the endotracheal tube into the patient's airway along the guide section until the endotracheal tube reaches the original marking position; 8. Expel the gas inside the buffer section and remove the guide section and buffer section.
[0017] The beneficial effects of this invention are as follows: The buffer part is located on the end face of the guide part, serving as a buffer to prevent the guide part from damaging the patient's airway. During use, the buffer part is passed through the inside of the endotracheal tube, and then the endotracheal tube is removed from the patient's body. The guide part is then used to insert the endotracheal tube back into the patient's body, making the process convenient, quick, and enabling rapid endotracheal tube replacement. Attached Figure Description
[0018] Figure 1 A perspective view of an endotracheal intubation guide device for implementing this utility model; Figure 2 A front view of an endotracheal intubation guide device for implementing this utility model; Figure 3 A cross-sectional view of an endotracheal intubation guide device for implementing this utility model; Figure 4 for Figure 3 A magnified view of a portion of the image; Figure 5A front view of another endotracheal intubation guide device for implementing this utility model; In the figure, 1 is the guide section; 2 is the buffer section; 3 is the connector; 4 is the hose; 11 is the air passage; 12 is the support structure; 13 is the scale; 31 is the outer shell; 32 is the piston; 33 is the reset structure; 34 is the mounting ring; 311 is the limit ring; 312 is the sealing ring; and 321 is the vent. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The present utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In the description of this utility model, it should be understood that the terms "length", "upper", "lower", "front", "rear", "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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] like Figure 1-4 The endotracheal intubation guide device shown includes a guide part 1 and a buffer part 2; the guide part 1 has a regular columnar structure; one end of the guide part 1 is fixedly connected to the buffer part 2, and the other end is provided with a flexible tube 4; an airway 11 is provided inside the guide part 1; one end of the airway 11 is connected to the buffer part 2, and the other end is connected to the flexible tube 4; a support structure 12 is provided inside the guide part 1; the support structure 12 has a regular columnar structure; the axis of the support structure 12 is parallel to the axis of the guide part 1.
[0023] The buffer section 2 is located on the end face of the guide section 1 and acts as a buffer to prevent the guide section 1 from damaging the patient's airway 11. In use, the buffer section 2 is passed through the inside of the endotracheal tube, and then the endotracheal tube is removed from the patient's body. The endotracheal tube is then inserted into the patient's body through the guide section 1, which is convenient and quick, and enables rapid replacement of the endotracheal tube.
[0024] Specifically, the buffer section 2 is an airbag. During use, gas is injected into the airbag through the hose 4 and the airway 11, causing the airbag to inflate. The inflated airbag can prevent the guide section 1 from damaging the airway 11.
[0025] Furthermore, the hose 4 is fixedly connected to the guide part 1.
[0026] In some examples of this application, the hose 4 is detachably connected to the guide 1.
[0027] In a specific example of this application, the support structure 12 is made of one or more of aluminum, iron, and copper. The support structure 12 is a metal rod with a certain degree of flexibility, which allows the guide part 1 to bend and maintain its bent posture after bending.
[0028] The total length of a conventional endotracheal tube is about 30cm, therefore the length of the guide section 1 needs to be greater than 30cm.
[0029] Preferably, the length of the guide part 1 is 70cm.
[0030] In the illustrative embodiment of this application, a connector 3 is provided at the end of the hose 4 away from the guide portion 1. The connector 3 includes a housing 31, a limiting ring 311, a piston 32, a reset structure 33, and a mounting ring 34; the limiting ring 311, piston 32, reset structure 33, and mounting ring 34 are all disposed inside the housing 31; the limiting ring 311 and the mounting ring 34 are both fixedly connected to the housing 31; one end of the reset structure 33 abuts against the mounting ring 34, and the other end presses the piston 32 onto the limiting ring 311.
[0031] When the gas supply device is connected to connector 3, it pushes piston 32 away from limiting ring 311, creating a gap between piston 32 and limiting ring 311. This allows gas to be injected into hose 4 or drawn out of buffer section 2 through hose 4. When the gas supply device is removed, reset structure 33 presses piston 32 onto limiting ring 311, resealing the buffer section 2 and maintaining constant air pressure inside.
[0032] Furthermore, the piston 32 has a vent 321 inside; the inner wall of the outer shell 31 has a sealing ring 312; when the reset structure 33 presses the piston 32 onto the limiting ring 311, one end of the vent 321 is connected to the outside, and the other end is blocked by the sealing ring 312. When the piston 32 is connected to a syringe, one end of the vent 321 is connected to the syringe, and then the syringe pushes the piston 32 to move, so that the sealing ring 312 no longer blocks the vent 321. At this time, gas can be injected into the hose 4 or gas can be drawn out of the buffer section 2 through the hose 4. After separating the connector 3 from the syringe, the reset structure 33 presses the piston 32 onto the limiting ring 311, resealing the connector 3.
[0033] Preferably, a guide rod is provided at the end of the piston 32 away from the limiting ring 311; the guide rod passes through the mounting ring 34. The function of the guide rod is to limit the movement direction of the piston 32 and prevent the piston 32 from being misaligned, which would make it difficult for the reset structure 33 to press the piston 32 against the side wall of the limiting ring 311.
[0034] Specifically, the reset structure 33 is a spring.
[0035] In some embodiments of this application, such as Figure 5 As shown, the guide part 1 has a scale 13 on its outside. In use, first insert the guide part 1 into the inside of the existing endotracheal tube and record the scale 13 at the current position of the endotracheal tube port. Then remove the existing endotracheal tube and insert the new endotracheal tube along the guide part 1 until it reaches the recorded scale 13 position, which indicates that the new endotracheal tube is installed in place.
[0036] In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] The embodiments described in this application are merely some embodiments of the present invention, and not all embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. In the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
Claims
1. A endotracheal intubation guide device, comprising a guide portion and a buffer portion, characterized in that, The guide section has a regular columnar structure; one end of the guide section is fixedly connected to the buffer section, and the other end is provided with a flexible tube; the guide section has an air passage inside; one end of the air passage is connected to the buffer section, and the other end is connected to the flexible tube; the guide section has a support structure inside; the support structure has a regular columnar structure; the axis of the support structure is parallel to the axis of the guide section. The length of the guide portion is greater than 30cm.
2. The endotracheal intubation guide device according to claim 1, characterized in that, The guide section has a scale on its exterior.
3. The endotracheal intubation guide device according to claim 1, characterized in that, The hose is fixedly connected to the guide section.
4. The endotracheal intubation guide device according to claim 1, characterized in that, The hose has a connector at the end away from the guide section.
5. The endotracheal intubation guide device according to claim 4, characterized in that, The connector includes a housing, a limiting ring, a piston, a reset structure, and a mounting ring; the limiting ring, piston, reset structure, and mounting ring are all disposed inside the housing; the limiting ring and mounting ring are fixedly connected to the housing; one end of the reset structure abuts against the mounting ring, and the other end presses the piston onto the limiting ring.
6. The endotracheal intubation guide device according to claim 5, characterized in that, The piston has an internal vent hole; the inner wall of the outer shell has a sealing ring; when the reset structure presses the piston onto the limiting ring, one end of the vent hole is connected to the outside, and the other end is blocked by the sealing ring.
7. The endotracheal intubation guide device according to claim 5, characterized in that, The piston is provided with a guide rod at the end away from the limiting ring; the guide rod passes through the mounting ring.
8. The endotracheal intubation guide device according to claim 5, characterized in that, The reset structure is a spring.