A multifunctional respiratory interventional endotracheal intubation

Abstract

The present invention relates to the technical field of endotracheal intubation, and more specifically, to a multifunctional respiratory interventional endotracheal intubation, comprising a tube body, an air bag provided at the insertion end of the tube body, the air bag being connected to an air inflation and deflation pipeline, an annular channel provided on the side of the tube body close to the air bag, an angle adjustment assembly provided in the annular channel; the angle adjustment assembly comprises a plurality of curved tubes connected in sequence and rotating, and at least one of the two adjacent curved tubes is connected to a driving structure for driving it to rotate relative to the other curved tube; a liquid collecting tank is provided on the side of the air bag away from the insertion end of the tube body, and a dilution liquid pipeline and a sputum suction pipeline with one end extending into the liquid collecting tank are provided on the tube body. The angle adjustment assembly of the present invention realizes refined control of the bending angle of the tube body through the superposition design of multiple curved tubes with small angles. By rotating the curved tubes, the combined shape of the curved tubes can be gradually adjusted so that the insertion end of the tube body is accurately aligned with the glottis.

Description

Technical Field

[0001] The present invention relates to the technical field of endotracheal intubation, and more particularly to a multifunctional respiratory interventional endotracheal intubation. Background Art

[0002] Tracheal intubation is a key medical procedure for establishing an artificial airway and ensuring ventilation, and is widely used in emergency, anesthesia, and intensive care. However, traditional tracheal intubation has the following technical limitations:

[0003] First, angle adjustment relies on pre-shaping or a single bend design, which makes it difficult to accurately match the glottis position, resulting in a high intubation failure rate and easy damage to the airway; second, secretions are easily retained above the balloon, requiring repeated external suction equipment, which is cumbersome to operate and increases the risk of infection.

[0004] For example, a tracheal intubation tube disclosed in Chinese invention patent application publication number CN114917445A uses a structure of pulling a bending wire to adjust the angle of the tube body. The accuracy is difficult to ensure, and the exposed bending wire is likely to cause damage to the trachea.

[0005] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0006] In order to overcome the deficiencies in the prior art, a multifunctional respiratory interventional endotracheal cannula is provided which is convenient for angle adjustment and secretion collection.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A multifunctional respiratory interventional endotracheal cannula comprises a tube body, an insertion end of the tube body is provided with an air bag, the air bag is connected to an air inflation and deflation pipeline, the tube body is provided with an annular channel on one side close to the air bag, and an angle adjustment component is provided in the annular channel;

[0009] The angle adjustment assembly includes a plurality of curved pipes connected in rotation in sequence, and at least one of two adjacent curved pipes is connected to a driving structure that drives it to rotate relative to the other curved pipe;

[0010] The driving structure includes a first guide rod and a first piston. One of the two adjacent curved pipes is provided with an arc-shaped control cavity, one end of the control cavity is closed, and the other end is provided with an insertion port. The first guide rod is fixedly connected to the other curved pipe, the first guide rod is inserted into the control cavity and is sealed with the insertion port of the control cavity. The first piston is fixedly connected to the first guide rod and is slidably sealed with the interior of the control cavity.

[0011] The control chamber is provided with two medium ports, which are respectively located on both sides of the first piston, and the two medium ports are respectively connected to a forward driving pipeline and a reverse driving pipeline.

[0012] Preferably, the tube body comprises an inner tube body and an outer tube body which are sleeved with each other, an annular channel is formed between the inner tube body and the outer tube body, and both ends of the outer tube body are respectively sealedly connected to the outer wall of the inner tube body.

[0013] Preferably, a liquid collecting tank is provided on a side of the air bag away from the insertion end of the tube body, and a diluent pipeline and a sputum suction pipeline with one end extending into the liquid collecting tank are provided on the tube body.

[0014] Preferably, there are 5 bends, which are the first bend, the second bend, the third bend, the fourth bend and the fifth bend in order of connection. The first bend is fixedly connected to the tube body, the third bend and the fifth bend do not rotate circumferentially with the tube body, and the bending directions of the first bend, the third bend and the fifth bend are the same.

[0015] Preferably, the angle between the end surface normals at both ends of a single elbow is 8° to 15°.

[0016] Preferably, a plurality of reserved wire grooves are provided on the side wall of the tube body, and the gas charging and discharging pipelines, the diluent pipeline, and the sputum suction pipeline all extend to the other side of the tube body through the reserved wire grooves.

[0017] Preferably, one end of the tube body away from the insertion end is connected to a connector for connecting to a catheter support or a medical breathing system.

[0018] Preferably, positioning sliders are provided on the third curved pipe and the fifth curved pipe, and sliding grooves cooperating with the positioning sliders are provided at corresponding positions inside the pipe bodies.

[0019] Preferably, an annular convex ring and an annular groove are respectively provided at one end of two adjacent curved pipes close to each other, and the two adjacent curved pipes are rotatably connected through the annular convex ring and the annular groove.

[0020] Preferably, the forward driving pipeline and the reverse driving pipeline are respectively connected to a syringe.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The angle adjustment assembly of this invention achieves precise control of the tube bending angle through the stacking design of multiple small-angle bends. The operator can gradually adjust the combined shape of the bends by rotating the bends, accurately aligning the insertion end of the tube with the glottis, effectively avoiding the defect of laryngeal tissue damage caused by large swing of the tube during intubation, and significantly improving the success rate of first-time intubation.

[0023] 2. The airbag adopts an independent inflation and deflation pipeline design, and the integration of the liquid collection tank, diluent pipeline and sputum suction pipeline forms a sputum "dilution-collection-clearance" closed-loop system, reducing the risk of infection caused by sputum accumulation.

[0024] 3. The driving structure adopts hydraulic or pneumatic transmission, and the rotation of the bent pipe is controlled by a syringe. It has the characteristics of fast response and high control precision, and does not require external power supply or complex equipment, meeting the needs of emergency scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the working state of the present invention when it is at the minimum bending angle;

[0027] Figure 2 This is a schematic diagram of the cooperation between the angle adjustment component and the tube body;

[0028] Figure 3 This is a schematic diagram of the structure of the angle adjustment component when it is at the minimum bending angle;

[0029] Figure 4 This is a schematic diagram of the structure of the angle adjustment component when it is at the maximum bending angle;

[0030] Figure 5 Schematic diagram of the cross section of the angle adjustment component;

[0031] Figure 6 Schematic diagram of the cooperation between the control chamber and the first guide rod;

[0032] Figure 7 It is a structural diagram of an angled bend pipe;

[0033] Figure 8 It is a structural diagram of the elbow at another angle;

[0034] Figure 9 This is a schematic diagram of the working state of the present invention when it is at the maximum bending angle;

[0035] In the figure: 1-tube body; 11-dilution liquid pipeline; 12-sputum suction pipeline; 13-inner tube body; 14-outer tube body; 16-connector; 17-chute; 2-airbag; 21-inflating and deflating pipeline; 22-liquid collecting tank; 3-annular channel; 4-angle adjustment component; 41-annular convex ring; 42-annular groove; 43-first bend; 44-second bend; 45-third bend; 46-fourth bend; 47-fifth bend; 48-positioning slider; 5-driving structure; 51-control chamber; 52-first guide rod; 53-first piston; 54-forward drive pipeline; 55-reverse drive pipeline; 6-tracheal wall. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example:

[0038] like Figure 1 、 Figure 2 、 Figure 9 As shown, a multifunctional respiratory interventional endotracheal tube includes a tube body 1. An air bag 2 is provided at the insertion end of the tube body 1. The air bag 2 is pressed against the tracheal wall 6 to locate the position of the tube body 1. The air bag 2 is connected to an inflation and deflation pipeline 21. One end of the inflation and deflation pipeline 21 extends into the air bag 2, and the other end is connected to an inflation and deflation device, such as a syringe. The inflation and deflation of the air bag 2 is achieved by manually pushing the syringe.

[0039] In order to facilitate the insertion of the insertion end of the tube body 1 into the glottis, an angle adjustment component 4 is provided on the tube body 1. The angle adjustment component 4 changes the bending angle of the tube body 1 so that the insertion end of the tube body 1 is aligned with the glottis.

[0040] Specifically, the tube body 1 includes an inner tube body 13 and an outer tube body 14 that are socketed with each other, and an annular channel 3 is formed between the inner tube body 13 and the outer tube body 14. The two ends of the outer tube body 14 are respectively sealed with the outer wall of the inner tube body 13, and the angle adjustment component 4 is arranged in the annular channel 3.

[0041] like Figures 3 to 8 As shown, the angle adjustment assembly 4 includes several curved pipes that are rotatably connected in sequence. Preferably, an annular convex ring 41 and an annular groove 42 are respectively provided at one end of two adjacent curved pipes close to each other, and the two adjacent curved pipes are rotatably connected through the annular convex ring 41 and the annular groove 42.

[0042] At least one of the two adjacent curved tubes is connected to a drive mechanism 5 that drives its rotation relative to the other, allowing any two adjacent curved tubes to rotate relative to each other. This further enables the combined structure of multiple curved tubes to adopt different configurations. Because this combined structure is located within the annular channel 3 of the tube body 1, changes in the combined structure's configuration drive the tube body 1 to follow suit. The tube body 1 is made of medical-grade soft plastic.

[0043] Preferably, the angle between the end surface normals at both ends of a single elbow is 8° to 15°, so that the rotation of the single elbow has little impact on the shape of the tube body 1 and prevents the tube body 1 from swinging significantly to the sides. The final required curvature of the tube body 1 is achieved by superimposing the bending of multiple elbows.

[0044] Preferably, there are five bends, which are, in order of connection, the first bend 43, the second bend 44, the third bend 45, the fourth bend 46 and the fifth bend 47, wherein the first bend 43 is relatively fixed to the tube body 1, and the third bend 45 and the fifth bend 47 are circumferentially limited to the tube body 1 (no relative rotation with the tube body 1 but can slide along the tube body 1 in a small range), reducing the resistance of the second bend 44 and the fourth bend 46 when they rotate.

[0045] Specifically, positioning sliders 48 are provided on the third bend pipe 45 and the fifth bend pipe 47 , and corresponding positions on the inner side of the outer tube body 14 are provided with sliding grooves 17 cooperating with the positioning sliders 48 , thereby achieving circumferential limitation of the third bend pipe 45 and the fifth bend pipe 47 .

[0046] Preferably, the first bend 43, the third bend 45, and the fifth bend 47 have the same bending direction. When the second bend 44 and the fourth bend 46 rotate to the same bending direction as the first bend 43 (or the third bend 45 and the fifth bend 47), the tube body 1 reaches the maximum bending angle.

[0047] The drive structure 5 adopts the following structure:

[0048] The driving structure 5 includes a first guide rod 52 and a first piston 53. One of the two adjacent curved pipes is provided with an arc-shaped control chamber 51, and the other curved pipe is fixedly connected to the first guide rod 52 inserted into the control chamber 51. The first guide rod 52 is sealed with the insertion port of the control chamber 51, and the first piston 53 is fixedly provided on the first guide rod 52 and is slidably sealed with the inside of the control chamber 51.

[0049] The control chamber 51 is provided with two medium ports, which are located on both sides of the first piston 53. The two medium ports of each control chamber 51 are connected to a forward drive pipeline 54 and a reverse drive pipeline 55 ( Figure 1 and Figure 9 Only one control chamber 51 is shown, connected to a forward drive pipeline 54 and a reverse drive pipeline 55. The control chamber 51 can be a hydraulic chamber or a pneumatic chamber, and correspondingly, the forward drive pipeline 54 and the reverse drive pipeline 55 can be hydraulic pipelines or pneumatic pipelines.

[0050] Take the hydraulic chamber and hydraulic pipeline as an example:

[0051] The forward drive pipeline 54 and the reverse drive pipeline 55 are respectively connected to the forward liquid inlet and the reverse liquid inlet. Both the forward liquid inlet and the reverse liquid inlet use manually controlled syringes. If one of the syringes is pushed, the liquid in the syringe enters the chamber on one side of the control chamber 51, pushing the first piston 53 to slide along the control chamber 51, and then pushing one of the bent pipes to rotate relative to the other bent pipe through the first guide rod 52; if the other syringe is pushed, the liquid in the syringe enters the chamber on the other side of the hydraulic chamber 51, pushing the first piston 53 to slide in the opposite direction of the hydraulic chamber 51, and then pushing one of the bent pipes to rotate in the opposite direction relative to the other bent pipe through the first guide rod 52.

[0052] Take the air pressure chamber and air pressure pipeline as an example:

[0053] The forward drive pipeline 54 and the reverse drive pipeline 55 are respectively connected to the forward air intake and the reverse air intake. Both the forward air intake and the reverse air intake can use manually controlled syringes. If one of the syringes is pushed, the gas in the syringe enters the chamber on one side of the control chamber 51, pushing the first piston 53 to slide along the control chamber 51, and then pushing one of the bent pipes to rotate relative to the other bent pipe through the first guide rod 52; if the other syringe is pushed, the gas in the syringe enters the chamber on the other side of the control chamber 51, pushing the first piston 53 to slide in the opposite direction of the control chamber 51, and then pushing one of the bent pipes to rotate in the opposite direction relative to the other bent pipe through the first guide rod 52.

[0054] A liquid collecting tank 22 is provided on the side of the airbag 2 away from the insertion end of the tube body 1. The liquid collecting tank 22 can collect accumulated sputum. The tube body 1 is provided with a diluent pipeline 11 and a sputum suction pipeline 12, one end of which extends into the liquid collecting tank 22. The sputum suction pipeline 12 can extract the accumulated sputum in the liquid collecting tank 22, the diluent pipeline 11 can dilute the accumulated sputum, making it easier for the sputum suction pipeline 12 to suction, and the diluent pipeline 11 can also be used for flushing.

[0055] Several reserved wire grooves are provided on the side wall of the tube body 1. The gas charging and discharging pipeline 21, the diluent pipeline 11, the sputum suction pipeline 12, the forward drive pipeline 54, and the reverse drive pipeline 55 can all be extended to the other side of the tube body 1 through the reserved wire grooves, making it convenient to connect other equipment.

[0056] One end of the tube body 1 away from the insertion end is connected to a connector 16 for connecting to a catheter support or a medical breathing system.

[0057] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.

Claims

1. A multifunctional respiratory interventional endotracheal cannula, comprising a tube body (1), an insertion end of the tube body (1) being provided with an air bag (2), the air bag (2) being connected to an air filling and discharging pipeline (21), characterized in that: The tube body (1) is provided with an annular channel (3) on one side close to the airbag (2), and an angle adjustment component (4) is provided in the annular channel (3); The angle adjustment assembly (4) comprises a plurality of curved pipes connected in rotation in sequence, wherein at least one of two adjacent curved pipes is connected to a driving structure (5) for driving the curved pipe to rotate relative to the other curved pipe; The driving structure (5) includes a first guide rod (52) and a first piston (53). One of the two adjacent curved pipes is provided with an arc-shaped control chamber (51). One end of the control chamber (51) is closed, and the other end is provided with an insertion port. The first guide rod (52) is fixedly connected to the other curved pipe. The first guide rod (52) is inserted into the control chamber (51) and is sealed with the insertion port of the control chamber (51). The first piston (53) is fixedly connected to the first guide rod (52) and is slidably sealed with the interior of the control chamber (51). The control chamber (51) is provided with two medium ports, which are respectively located on both sides of the first piston (53), and the two medium ports are respectively connected to a forward drive pipeline (54) and a reverse drive pipeline (55); An annular convex ring (41) and an annular groove (42) are respectively provided at one end of two adjacent curved pipes that are close to each other, and the two adjacent curved pipes are rotatably connected via the annular convex ring (41) and the annular groove (42).

2. A multifunctional respiratory interventional endotracheal intubation according to claim 1, characterized in that: The tube body (1) comprises an inner tube body (13) and an outer tube body (14) which are sleeved together, an annular channel (3) is formed between the inner tube body (13) and the outer tube body (14), and both ends of the outer tube body (14) are respectively sealed to the outer wall of the inner tube body (13).

3. The multifunctional respiratory interventional endotracheal intubation tube according to claim 1, characterized in that: A liquid collecting tank (22) is provided on the side of the air bag (2) away from the insertion end of the tube body (1), and a diluent pipeline (11) and a sputum suction pipeline (12) are provided on the tube body (1), one end of which extends into the liquid collecting tank (22).

4. The multifunctional respiratory interventional endotracheal intubation tube according to claim 1, characterized in that: There are five curved pipes, which are connected in the order of a first curved pipe (43), a second curved pipe (44), a third curved pipe (45), a fourth curved pipe (46) and a fifth curved pipe (47). The first curved pipe (43) is fixedly connected to the pipe body (1). The third curved pipe (45) and the fifth curved pipe (47) do not rotate circumferentially with the pipe body. The first curved pipe (43), the third curved pipe (45) and the fifth curved pipe (47) have the same bending direction.

5. The multifunctional respiratory interventional endotracheal intubation tube according to claim 1, characterized in that: The angle between the end face normals at both ends of a single elbow is 8°~15°.

6. The multifunctional respiratory interventional endotracheal intubation tube according to claim 1, characterized in that: The side wall of the tube body (1) is provided with a plurality of reserved wire grooves, and the gas filling and discharging pipeline (21), the diluent pipeline (11), and the sputum suction pipeline (12) all extend to the other side of the tube body (1) through the reserved wire grooves.

7. The multifunctional respiratory interventional endotracheal intubation tube according to claim 1, characterized in that: One end of the tube body (1) away from the insertion end is connected to a connector (16) for connecting to a catheter support or a medical respiratory system.

8. The multifunctional respiratory interventional endotracheal intubation tube according to claim 4, characterized in that: Positioning slide blocks (48) are provided on the third curved tube (45) and the fifth curved tube (47), and corresponding positions on the inner side of the tube body (14) are provided with sliding grooves (17) that cooperate with the positioning slide blocks (48).

9. The multifunctional respiratory interventional endotracheal intubation tube according to claim 1, characterized in that: The forward driving pipeline (54) and the reverse driving pipeline (55) are respectively connected to a syringe.

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