Ventilation catheter for respiratory intervention first aid

Abstract

The utility model relates to the field of medical instruments, and discloses a breathing intervention first-aid ventilation catheter which comprises a catheter body, an air pressure bin is arranged on the inner wall of the catheter body, a connecting pipe is fixedly connected to the top end of the catheter body, and the interior of the connecting pipe is communicated with the air pressure bin. The end, away from the air pressure bin, of the connecting pipe is connected with an injector, an air bag is fixedly connected to the outer wall of the lower end of the catheter body, a conduction mechanism is arranged in the catheter body and comprises a first air flow channel, the top end of the first air flow channel communicates with the air pressure bin, and a conversion assembly is arranged in the air pressure bin. The conversion assembly comprises a conversion block. According to the catheter dredging device, through the arrangement of the conduction mechanism, after a barrier is encountered in the catheter inserting process, the dredging pipe can move outwards, and then a channel appears in the middle of the barrier through opening of the front end, so that it is guaranteed that the catheter can be smoothly inserted, and guarantee is provided for life safety of a patient.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a ventilation catheter for respiratory intervention emergency treatment. Background Art

[0002] In emergency medical treatment, especially in respiratory emergency, the use of ventilation tubes is essential. They help maintain the patient's respiratory function, ensure oxygen supply, and promote the discharge of carbon dioxide. In inhalation emergency, ventilation tubes play a vital role.

[0003] Currently, in the process of first aid, in order to help patients maintain their breathing function, a catheter is often inserted along the trachea to the end bifurcation position, then fixed with an airbag, and connected to a ventilator through an external catheter to help the patient breathe.

[0004] At present, the existing ventilation catheters can only be inserted by brute force when in use. When soft tissue forms an obstruction in the patient's throat or other catheter passage areas, problems may occur during use due to the catheter's softness. Therefore, a ventilation catheter for respiratory intervention emergency is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a ventilation catheter for respiratory intervention emergency treatment, aiming to improve the problem in the prior art that it is inconvenient to insert the catheter when soft tissue is blocked in the patient's throat or other areas along the way during the catheter insertion process.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ventilation catheter for respiratory intervention emergency, comprising a catheter body, an inner wall of the catheter body is provided with an air pressure chamber, the top end of the catheter body is fixedly connected to a connecting tube, the interior of the connecting tube is communicated with the air pressure chamber, an end of the connecting tube away from the air pressure chamber is connected to a syringe, an outer wall of the lower end of the catheter body is fixedly connected to an air bag, a conducting mechanism is arranged inside the catheter body, the conducting mechanism comprises an air flow channel 1, the top end of the air flow channel 1 is communicated with the air pressure chamber, a conversion assembly is arranged inside the air pressure chamber, the conversion assembly comprises a conversion block, the conversion block is connected to the inner wall piston of the air pressure chamber, an inner wall of the catheter body at the lower end of the air pressure chamber is provided with an air flow channel 2, the top end of the air flow channel 2 is communicated with the air pressure chamber, and the lower end of the air flow channel 2 is communicated with the inner wall of the air bag.

[0007] As a further description of the above technical solution:

[0008] The inner wall piston of the airflow channel 1 is connected to a control block, a dredging pipe is fixedly connected to the right end of the control block, a mounting bracket is fixedly connected to the inner wall of the dredging pipe, an air duct is opened on the inner wall of the control block, and the air duct is also opened on the inner walls of the dredging pipe and the mounting bracket, a sliding rod is connected to the inner wall piston of the air duct, and a pushing ring is fixedly connected to the outer wall of the sliding rod.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the control block is penetrated and the piston is connected with a control plate, and a connecting hole is opened on the inner wall of the control plate.

[0011] As a further description of the above technical solution:

[0012] The left end of the conversion block is elastically connected to the inner wall of the air pressure chamber through a spring, and the left end of the conversion block is fixedly connected with a pull rope, and the pull rope runs through the interior of the catheter body.

[0013] As a further description of the above technical solution:

[0014] The dredging pipe has a shape of a hollow cylinder at the upper end and a hollow hemisphere at the lower end cut into a plurality of thin slices in a shape similar to petals connected together.

[0015] As a further description of the above technical solution:

[0016] The length of the conversion block is longer than the width of the airflow channel 1 and the width of the airflow channel 2, and the distance between the left end of the airflow channel 2 and the left end of the air pressure chamber is greater than the length of the spring after compression.

[0017] As a further description of the above technical solution:

[0018] The distance between the bottom end of the control plate and the bottom end of the control block is consistent with the distance between the horizontal area of ​​the air passage and the connecting hole.

[0019] As a further description of the above technical solution:

[0020] The length of the dredging tube in the area above the control block is longer than the length of the airflow channel 1, and the outer wall of the dredging tube is in contact with the inner wall of the catheter body.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting the conducting mechanism, when an obstacle is encountered during the insertion of the catheter, the clearing tube can be moved outwards and a passage can be formed in the middle of the obstacle through the opening of the front end, thereby ensuring that the catheter can be inserted smoothly and providing protection for the patient's life safety.

[0023] 2. In the present invention, the airflow introduced by the syringe can be switched between the first airflow channel and the second airflow channel by setting the conversion component, thereby ensuring that the device can operate normally without the need to connect multiple syringes to the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the catheter body in the utility model;

[0026] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the three-dimensional structure of part A;

[0027] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged three-dimensional structure of part B.

[0028] Legend:

[0029] 1. Catheter body; 2. Air pressure chamber; 3. Connecting tube; 4. Syringe; 5. Airbag; 6. Conducting mechanism; 7. Conversion assembly; 8. Air flow channel 2; 61. Air flow channel 1; 62. Control block; 63. Clearing tube; 64. Mounting frame; 65. Air duct; 66. Slide rod; 67. Push ring; 68. Control board; 69. Connecting hole; 71. Conversion block; 72. Spring; 73. Pull rope. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4The utility model provides an embodiment: a ventilation catheter for respiratory intervention emergency treatment, comprising a catheter body 1, the catheter body 1 is soft, an air pressure chamber 2 is opened on the inner wall of the catheter body 1, a connecting tube 3 is fixedly connected to the top of the catheter body 1, the interior of the connecting tube 3 is communicated with the air pressure chamber 2, a syringe 4 is connected to the end of the connecting tube 3 away from the air pressure chamber 2, the outer wall of the syringe 4 is colorless and transparent, and scale lines are arranged on the surface of the syringe 4, an air bag 5 is fixedly connected to the outer wall of the lower end of the catheter body 1, the initial state of the air bag 5 is a contracted state, an air flow channel 8 is opened on the inner wall of the catheter body 1 at the lower end of the air pressure chamber 2, the top of the air flow channel 8 is communicated with the air pressure chamber 2, and the lower end of the air flow channel 8 is communicated with the inner wall of the air bag 5.

[0032] Reference Figure 2 - Figure 4 The interior of the catheter body 1 is provided with a conducting mechanism 6, which includes an airflow channel 61. The top of the airflow channel 61 is connected to the air pressure chamber 2. The inner wall piston of the airflow channel 61 is connected to a control block 62. The right end of the control block 62 is fixedly connected to a dredging tube 63. The dredging tube 63 is in the shape of a hollow cylinder at the upper end and a hollow hemisphere at the lower end cut into a plurality of petal-shaped slices connected. The petal-shaped slice at the front end of the dredging tube 63 has a certain deformation ability. The arrangement ensures that when the ventilator is connected, the gas can push the front end sheet of the dredge tube 63, thereby ensuring that the operation of the equipment is not affected. The shape setting of the dredge tube 63 ensures that when the dredge tube 63 is just removed, the round surface contacts the obstacle, thereby reducing the possibility of scratching the obstacle. The length of the dredge tube 63 in the area above the control block 62 is longer than the length of the airflow channel 61. Through the length setting, it is ensured that there is no gas leakage on the right side of the airflow channel 61, and the outer wall of the dredge tube 63 fits with the inner wall of the catheter body 1.

[0033] Reference Figure 2 - Figure 4 The inner wall of the dredging pipe 63 is fixedly connected with a mounting frame 64, and the shape of the mounting frame 64 is a circular ring, which is a shape formed by connecting a horizontal rectangular strip and a vertical cylindrical strip. An air passage 65 is provided on the inner wall of the control block 62, and the air passage 65 is also provided on the inner walls of the dredging pipe 63 and the mounting frame 64. The inner wall piston of the air passage 65 is connected with a slide rod 66, and the outer wall of the slide rod 66 is fixedly connected with a push ring 67, and the push ring 67 is shaped like a rectangular parallelepiped connected to an external hollow cylinder. The inner wall of the control block 62 is penetrated and the piston is connected with a control plate 68, and the outer wall of the control plate 68 is fitted with the inner wall of the control block 62. A connecting hole 69 is provided on the inner wall of the control plate 68, and the distance between the bottom end of the control plate 68 and the bottom end of the control block 62 is consistent with the distance between the horizontal area of ​​the air passage 65 and the connecting hole 69.

[0034] Reference Figure 2 - Figure 4 The interior of the air pressure chamber 2 is provided with a conversion assembly 7, which includes a conversion block 71, which is connected to the inner wall piston of the air pressure chamber 2, and the left end of the conversion block 71 is elastically connected to the inner wall of the air pressure chamber 2 by a spring 72, one end of the spring 72 is fixedly connected to the left end of the conversion block 71, and the other end of the spring 72 is fixedly connected to the inner wall of the air pressure chamber 2, and the length of the conversion block 71 is respectively longer than the width of the air flow channel 1 61 and the width of the air flow channel 2 8. By setting the length, it is ensured that the conversion block 71 can block the air flow channel 2 8 and the air flow channel 1 61 when it moves to the leftmost end and the rightmost end, respectively, and the distance between the left end of the air flow channel 2 8 and the left end of the air pressure chamber 2 is greater than the length of the spring 72 after compression, and the left end of the conversion block 71 is fixedly connected to a pull rope 73, the pull rope 73 is inelastic, and the pull rope 73 runs through the interior of the catheter body 1.

[0035] Working principle: When in use, the staff inserts the laryngoscope into the patient's mouth, lifts the epiglottis and exposes the larynx. The laryngoscope is a prior art and can be implemented by technicians in this field, so it will not be described in detail in this case and no notes are made. After the larynx is exposed, the staff passes the lower end of the catheter body 1 through the patient's larynx, so that the catheter body 1 is inserted along the trachea to the position of the terminal bifurcation.

[0036] When the staff inserts the catheter body 1, if a soft tissue obstruction appears, the staff first pulls the pull rope 73, so that the pull rope 73 pulls the conversion block 71, so that the conversion block 71 moves from the right end to the left end after being subjected to force. After the conversion block 71 moves, the airflow channel 1 61 at the bottom end of the conversion block 71 is connected to the air pressure chamber 2, and blocks the airflow channel 2 8 during the movement.

[0037] At this time, the staff pushes the piston at the rear end of the syringe 4 so that the gas inside the syringe 4 enters the air pressure chamber 2 through the connecting tube 3, thereby allowing the gas to enter the air flow channel 61. After the gas enters the air flow channel 61, the control block 62 is pushed to move downward, so that the control block 62 drives the clearing tube 63 to move downward, thereby moving the clearing tube 63 to a position outside the catheter body 1.

[0038] When the control block 62 moves downward to the bottom of the airflow channel 1 61 , the control plate 68 contacts the inner wall of the airflow channel 1 61 . At this time, the control block 62 continues to move downward while the control plate 68 cannot move. Therefore, the control plate 68 moves upward relative to the control block 62 .

[0039] After the movement, the connecting hole 69 is exactly at the same horizontal position as the airway 65. Therefore, after continuing to introduce gas at this time, the gas enters the airway 65 area inside the mounting frame 64 and pushes the slide bar 66, causing the slide bar 66 to move downward, and in the process of moving, the pushing ring 67 is driven to move downward, so that the pushing ring 67 pushes the inner wall of the clearing tube 63, so that the front end of the clearing tube 63 opens, thereby pushing the soft tissue toward the outside of the catheter body 1, so that a gap appears at the lower end of the catheter body 1, which is convenient for the staff to continue intubation.

[0040] When the unblocking is completed, the staff first draws back the gas through the syringe 4, and then loosens the pull rope 73. At this time, the conversion block 71 is not subjected to the force of the pull rope 73, so it moves to the right under the elastic force of the spring 72, exposing the airflow channel 2 8 while blocking the airflow channel 1 61. At this time, the staff pushes the gas again through the syringe 4, and the gas enters the airbag 5 through the airflow channel 2 8, so that the catheter body 1 is fixed. After the fixation is completed, the staff connects the upper end of the catheter body 1 to the oxygen machine to maintain the patient's normal breathing.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation catheter for respiratory intervention emergency treatment, comprising a catheter body (1), characterized in that: The inner wall of the catheter body (1) is provided with an air pressure chamber (2), the top end of the catheter body (1) is fixedly connected with a connecting tube (3), the interior of the connecting tube (3) is communicated with the air pressure chamber (2), the end of the connecting tube (3) away from the air pressure chamber (2) is connected with a syringe (4), the lower end outer wall of the catheter body (1) is fixedly connected with an air bag (5), the interior of the catheter body (1) is provided with a conducting mechanism (6), the conducting mechanism (6) comprises an air flow channel 1 (61), The top end of the air flow channel 1 (61) is connected to the air pressure chamber (2), and a conversion assembly (7) is arranged inside the air pressure chamber (2). The conversion assembly (7) includes a conversion block (71), and the conversion block (71) is connected to the inner wall piston of the air pressure chamber (2). The inner wall of the catheter body (1) at the lower end of the air pressure chamber (2) is provided with an air flow channel 2 (8), and the top end of the air flow channel 2 (8) is connected to the air pressure chamber (2), and the lower end of the air flow channel 2 (8) is connected to the inner wall of the air bag (5).

2. A ventilation catheter for respiratory intervention emergency according to claim 1, characterized in that: The inner wall piston of the air flow channel 1 (61) is connected to a control block (62), the right end of the control block (62) is fixedly connected to a dredging pipe (63), the inner wall of the dredging pipe (63) is fixedly connected to a mounting frame (64), the inner wall of the control block (62) is provided with an air duct (65), the air duct (65) is also provided on the inner wall of the dredging pipe (63) and the mounting frame (64), the inner wall piston of the air duct (65) is connected to a sliding rod (66), and the outer wall of the sliding rod (66) is fixedly connected to a pushing ring (67).

3. A ventilation catheter for respiratory intervention emergency according to claim 2, characterized in that: The inner wall of the control block (62) is penetrated and the piston is connected to a control plate (68), and a connecting hole (69) is opened on the inner wall of the control plate (68).

4. A ventilation catheter for respiratory intervention emergency according to claim 1, characterized in that: The left end of the conversion block (71) is elastically connected to the inner wall of the air pressure chamber (2) via a spring (72), and the left end of the conversion block (71) is fixedly connected to a pull rope (73), and the pull rope (73) runs through the interior of the catheter body (1).

5. A ventilation catheter for respiratory intervention emergency according to claim 2, characterized in that: The dredging pipe (63) is in the shape of a hollow cylinder at the upper end and a hollow hemisphere at the lower end cut into a plurality of thin slices in a shape similar to petals connected together.

6. A ventilation catheter for respiratory intervention emergency according to claim 4, characterized in that: The length of the conversion block (71) is longer than the width of the air flow channel 1 (61) and the width of the air flow channel 2 (8), and the distance between the left end of the air flow channel 2 (8) and the left end of the air pressure chamber (2) is greater than the length of the spring (72) after compression.

7. A ventilation catheter for respiratory intervention emergency according to claim 3, characterized in that: The distance between the bottom end of the control plate (68) and the bottom end of the control block (62) is consistent with the distance between the horizontal area of ​​the air passage (65) and the connecting hole (69).

8. A ventilation catheter for respiratory intervention emergency according to claim 2, characterized in that: The length of the dredging tube (63) in the area above the control block (62) is longer than the length of the airflow channel 1 (61), and the outer wall of the dredging tube (63) is in contact with the inner wall of the catheter body (1).

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