Multifunctional respiratory intervention trachea cannula

Abstract

The invention relates to the technical field of trachea cannulas, in particular to a multifunctional respiratory intervention trachea cannula which comprises a cannula body, an air bag is arranged at the insertion end of the cannula body, the air bag is connected with an inflation and deflation pipeline, an annular channel is formed in the side, close to the air bag, of the cannula body, and an angle adjusting assembly is arranged in the annular channel; the angle adjusting assembly comprises a plurality of bent pipes which are rotationally connected in sequence, and in every two adjacent bent pipes, at least one bent pipe is connected with a driving structure for driving the bent pipe to rotate relative to the other bent pipe; a liquid collecting groove is formed in the side, away from the inserting end of the catheter body, of the air bag, and a diluent pipeline and a sputum suction pipeline with one ends extending into the liquid collecting groove are arranged on the catheter body. According to the angle adjusting assembly, through the stacked design of the multiple small-angle bent pipes, precise control over the bending angle of the pipe body is achieved. By rotating the bent pipe, the combined form of the bent pipe can be gradually adjusted, so that the insertion end of the pipe body is accurately aligned with the glottis.

Description

Technical Field

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

[0002] Tracheal intubation is a key medical operation to establish an artificial airway and ensure ventilation, and is widely used in emergency, anesthesia and intensive care. However, traditional tracheal intubation has the following technical limitations: 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 above the balloon are easily retained, requiring repeated external suction equipment, which is cumbersome to operate and increases the risk of infection.

[0003] For example, a tracheal intubation tube disclosed in the Chinese invention patent application with publication number CN114917445A uses a structure of pulling a bending wire to adjust the angle of the tube body, but the accuracy is difficult to ensure, and the exposed bending wire is likely to cause damage to the trachea.

[0004] Therefore, it is necessary to improve the prior art. Summary of the invention

[0005] 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.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: 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 charging and discharging pipeline, a side of the tube body close to the air bag is provided with an annular channel, and an angle adjustment component is provided in the annular channel; The angle adjustment assembly includes a plurality of curved pipes that are rotatably connected 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; 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, and the first piston is fixedly connected to the first guide rod and is slidably sealed with the inside of the control cavity. 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.

[0007] 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 two ends of the outer tube body are respectively sealed and connected to the outer wall of the inner tube body.

[0008] Preferably, a liquid collecting tank is arranged on one side of the airbag 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 arranged on the tube body.

[0009] Preferably, there are five 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 first bend, the third bend and the fifth bend have the same bending direction.

[0010] Preferably, the angle between the end surface normals at both ends of a single elbow is 8° to 15°.

[0011] Preferably, a plurality of reserved wire grooves are provided on the side wall of the tube body, and the gas filling 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.

[0012] 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.

[0013] Preferably, the third curved pipe and the fifth curved pipe are provided with positioning slide blocks, and corresponding positions inside the pipe bodies are provided with sliding grooves cooperating with the positioning slide blocks.

[0014] 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 via the annular convex ring and the annular groove.

[0015] Preferably, the forward driving pipeline and the reverse driving pipeline are respectively connected to a syringe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The angle adjustment assembly of the present invention realizes fine control of the bending angle of the tube body through the superposition design of multiple small-angle bends. The operator can gradually adjust the combined shape of the bends by rotating the bends, so that the insertion end of the tube body is accurately aligned with the glottis, effectively avoiding the defect of laryngeal tissue damage caused by large swings of the intubation tube, and significantly improving the success rate of the first intubation.

[0017] 2. The airbag adopts an independent inflation and deflation pipeline design, and the collection tank is integrated with the diluent pipeline and the sputum suction pipeline to form a sputum "dilution-collection-removal" closed-loop system, reducing the risk of infection caused by sputum accumulation.

[0018] 3. The driving structure adopts hydraulic or pneumatic transmission, and controls the rotation of the bent pipe through a syringe. It has the characteristics of fast response and high control accuracy, and does not require external power supply or complex equipment, meeting the needs of emergency scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the working state of the present invention when it is at the minimum bending angle; Figure 2 It is a schematic diagram of the cooperation between the angle adjustment component and the tube body; Figure 3 It is a schematic diagram of the structure when the angle adjustment component is at the minimum bending angle; Figure 4 It is a schematic diagram of the structure when the angle adjustment component is at the maximum bending angle; Figure 5 is a cross-sectional schematic diagram of an angle adjustment component; Figure 6 is a schematic diagram of the cooperation between the control chamber and the first guide rod; Figure 7 It is a schematic diagram of the structure of a bent pipe at an angle; Figure 8 It is a structural schematic diagram of the elbow at another angle; Fig. 9 This is a schematic diagram of the working state of the present invention when it is at the maximum bending angle; In the figure: 1-tube body; 11-dilution pipeline; 12-sputum suction pipeline; 13-inner tube body; 14-outer tube body; 16-connector; 17-chute; 2-air bag; 21-inflating and discharging 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

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] Example:

[0023] like Figure 1 , Figure 2 , Fig. 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, and the inflation and deflation of the air bag 2 is achieved by manually pushing the syringe.

[0024] 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, and the angle adjustment component 4 is used to change the bending angle of the tube body 1, so that the insertion end of the tube body 1 is aligned with the glottis.

[0025] Specifically, the tube body 1 includes an inner tube body 13 and an outer tube body 14 which are sleeved with each other, an annular channel 3 is formed between the inner tube body 13 and the outer tube body 14, both ends of the outer tube body 14 are respectively sealed and connected to the outer wall of the inner tube body 13, and the angle adjustment component 4 is arranged in the annular channel 3.

[0026] like Figures 3 to 8 As shown, the angle adjustment assembly 4 includes a plurality of 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 that are close to each other, and the two adjacent curved pipes are rotatably connected through the annular convex ring 41 and the annular groove 42.

[0027] At least one of the two adjacent curved pipes is connected to a driving structure 5 that drives it to rotate relative to the other curved pipe, so that any two adjacent curved pipes can rotate relative to each other, and further the combined structure composed of several curved pipes can change into different forms. Since the combined structure is located in the annular channel 3 of the pipe body 1, when the form of the combined structure changes, the pipe body 1 can be driven to change its form accordingly. The pipe body 1 is made of medical grade soft plastic material.

[0028] Preferably, the angle between the end surface normals at both ends of a single curved pipe is 8° to 15°, so that the single curved pipe has little effect on the shape of the pipe body 1 when rotating, and avoids the pipe body 1 from swinging to both sides to a large extent. The final required curvature of the pipe body 1 is achieved by superimposing the bending of multiple curved pipes.

[0029] 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 (they have no relative rotation with the tube body 1 but can slide along the tube body 1 in a small range), thereby reducing the resistance of the second bend 44 and the fourth bend 46 when they rotate.

[0030] Specifically, positioning slide blocks 48 are provided on the third curved pipe 45 and the fifth curved pipe 47 , and corresponding positions on the inner side of the outer tube body 14 are provided with slide grooves 17 cooperating with the positioning slide blocks 48 , so as to achieve circumferential limitation of the third curved pipe 45 and the fifth curved pipe 47 .

[0031] 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.

[0032] The driving structure 5 adopts the following structure: 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 with 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.

[0033] The control chamber 51 is provided with two medium ports, which are respectively located on both sides of the first piston 53. The two medium ports of each control chamber 51 are respectively connected to a forward drive pipeline 54 and a reverse drive pipeline 55 ( Figure 1 and Fig. 9 Only one control chamber 51 is shown to connect the forward drive pipeline 54 and the reverse drive pipeline 55). The control chamber 51 may be a hydraulic chamber or a pneumatic chamber, and correspondingly, the forward drive pipeline 54 and the reverse drive pipeline 55 may be hydraulic pipelines or pneumatic pipelines.

[0034] Take the hydraulic chamber and hydraulic pipeline as an example: 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 adopt 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.

[0035] Take the air pressure chamber and air pressure pipeline as an example: The forward drive pipeline 54 and the reverse drive pipeline 55 are respectively connected to the forward air inlet and the reverse air inlet. Both the forward air inlet and the reverse air inlet 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.

[0036] A liquid collecting tank 22 is provided on one side of the airbag 2 away from the insertion end of the tube body 1, and the liquid collecting tank 22 can collect the 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, and the sputum suction pipeline 11 can also be flushed.

[0037] The side wall of the tube body 1 is provided with a plurality of reserved wire grooves, and 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, so as to facilitate the connection with other equipment.

[0038] One end of the tube body 1 away from the insertion end is connected with a connector 16 for connecting to a catheter support or a medical breathing system.

[0039] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope 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 that are rotatably connected in sequence, and at least one of two adjacent curved pipes is connected to a driving structure (5) that drives it to rotate relative to the other curved pipe; The driving structure (5) comprises a first guide rod (52) and a first piston (53); one of the two adjacent curved tubes 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 opening; the first guide rod (52) is fixedly connected to the other curved tube; the first guide rod (52) is inserted into the control chamber (51) and is sealed with the insertion opening of the control chamber (51); the first piston (53) is fixedly connected to the first guide rod (52) and is slidably sealed with the inside 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).

2. A multifunctional respiratory intervention endotracheal cannula 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 sealedly connected to the outer wall of the inner tube body (13).

3. A multifunctional respiratory intervention endotracheal cannula according to claim 1, characterized in that: A liquid collecting tank (22) is provided on a 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) and have one end extending into the liquid collecting tank (22).

4. A multifunctional respiratory intervention endotracheal cannula according to claim 1, characterized in that: The bent pipes are provided with five pieces, which are, in order of connection, a first bent pipe (43), a second bent pipe (44), a third bent pipe (45), a fourth bent pipe (46) and a fifth bent pipe (47); the first bent pipe (43) is fixedly connected to the pipe body (1); the third bent pipe (45) and the fifth bent pipe (47) do not rotate circumferentially with the pipe body; and the first bent pipe (43), the third bent pipe (45) and the fifth bent pipe (47) have the same bending direction.

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

6. A multifunctional respiratory intervention endotracheal cannula according to claim 1, characterized in that: A plurality of reserved wire grooves are provided on the side wall of the tube body (1), and the gas charging 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. A multifunctional respiratory interventional endotracheal cannula 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 breathing system.

8. A multifunctional respiratory intervention endotracheal cannula according to claim 4, characterized in that: Positioning slide blocks (48) are provided on the third curved pipe (45) and the fifth curved pipe (47), and sliding grooves (17) cooperating with the positioning slide blocks (48) are provided at corresponding positions on the inner side of the pipe body (14).

9. A multifunctional respiratory intervention endotracheal cannula according to claim 1, characterized in that: An annular convex ring (41) and an annular groove (42) are respectively provided at the ends 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).

10. A multifunctional respiratory intervention endotracheal cannula according to claim 1, characterized in that: The forward drive pipeline (54) and the reverse drive pipeline (55) are respectively connected to a syringe.

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