Endotracheal intubation

Abstract

The present invention discloses a tracheal cannula, which includes a tube body, a pipe joint arranged at the first end of the tube body, an insertion end arranged at the second end of the tube body, an air bag arranged on the tube body close to the insertion end, and a first branch pipe connected to the air bag, the first end of the air bag is close to the pipe joint, the second end of the air bag is close to the insertion end, the first end of the air bag is provided with a receiving cavity for accommodating sputum, and the cannula also includes a second branch pipe extending into the receiving cavity and used to suck out the sputum. When the tracheal cannula of the present invention is used, the cannula can be inserted into the desired position, and then the air bag is inflated through the first branch pipe to achieve the fixation of the cannula. When the sputum in the user's mouth flows to the air bag, it first enters the receiving cavity at the first end of the air bag for storage. After the sputum accumulates to a certain amount, the sputum stored in the receiving cavity is sucked out through the second branch pipe to prevent a large amount of sputum from accumulating and prevent the sputum from flowing into the lungs.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to an endotracheal cannula. Background Art

[0002] In order to save the patient's life, keep the airway open, and establish a mechanical ventilation channel, it is usually necessary to create an artificial airway, that is, tracheal intubation. After tracheal intubation, the saliva and sputum in the patient's mouth can easily flow into the lungs along the tracheal tube, and in severe cases it may even cause pneumonia, greatly increasing the patient's casualty rate. Summary of the invention

[0003] The present invention aims at solving the above-mentioned defects of the prior art and provides an endotracheal cannula.

[0004] The technical solution adopted by the present invention to solve its technical problem is: constructing a tracheal cannula, which includes a tube body, a pipe joint arranged at the first end of the tube body, an insertion end arranged at the second end of the tube body, an air bag arranged on the tube body close to the insertion end, and a first branch tube connected to the air bag, the first end of the air bag is close to the pipe joint, the second end of the air bag is close to the insertion end, the first end of the air bag is provided with a accommodating cavity for accommodating sputum, and the cannula also includes a second branch tube extending into the accommodating cavity and used to suck out sputum.

[0005] In the endotracheal tube described in the present invention, the tube body includes an inner tube and an outer tube fixedly mounted outside the inner tube, an annular cavity is formed between the inner tube and the outer tube, and the first branch tube and the second branch tube are both arranged in the annular cavity.

[0006] In the endotracheal cannula described in the present invention, the first end of the first branch tube is provided with an inflation joint, the second end of the first branch tube is connected to the air bag, and the first end of the first branch tube is also provided with a pressure detection valve connected to the first branch tube.

[0007] In the endotracheal tube described in the present invention, the second end of the second branch tube is inserted into the accommodating cavity and fixedly connected to the airbag, and a suction port for allowing sputum to enter the second branch tube is provided on the side wall of the second end of the second branch tube.

[0008] In the endotracheal cannula of the present invention, the first end of the second branch tube is provided with a liquid suction device detachably connected to the first end of the second branch tube.

[0009] In the endotracheal intubation of the present invention, the suction device is a manually pressurized air bag, a syringe or a micro suction pump.

[0010] In the endotracheal tube described in the present invention, a central hole is provided at the center of the airbag for the tube body to pass through, and a sealing cover is also provided on the tube body between the insertion end and the airbag, and the sealing cover is used to cover the gap between the central hole and the tube body.

[0011] In the endotracheal cannula described in the present invention, the sealing cover comprises a sleeve rotatably mounted on the tube body, and a sealing ring fixed to the first end of the sleeve, and the sealing ring is used to block the gap between the central hole and the tube body.

[0012] In the endotracheal cannula described in the present invention, an external thread is provided at the second end of the tube body near the second end of the airbag, and an internal thread which can be threadedly connected with the external thread is provided on the inner side wall of the sleeve.

[0013] In the endotracheal cannula of the present invention, scale lines are provided on the outer side wall of the tube body.

[0014] The implementation of the tracheal cannula of the present invention has the following beneficial effects: when using the tracheal cannula of the present invention, the cannula can be inserted to the desired position, and then the airbag is inflated through the first branch tube to achieve the fixation of the cannula. When the sputum in the user's mouth flows to the airbag, it first enters the accommodating cavity at the first end of the airbag for storage. After the sputum accumulates to a certain amount, the sputum accumulated in the accommodating cavity is sucked out through the second branch tube to prevent a large amount of sputum from accumulating and at the same time prevent the sputum from flowing into the lungs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 It is a structural schematic diagram of the endotracheal cannula of the present invention;

[0017] Figure 2 It is an enlarged schematic diagram of the structure at A of the endotracheal cannula of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the air bag in the endotracheal tube of the present invention. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-3 As shown, in the first embodiment of the endotracheal cannula of the present invention, the cannula 1 includes a tube body 2, a pipe joint 3 arranged at the first end of the tube body 2, an insertion end 4 arranged at the second end of the tube body 2, an air bag 5 arranged on the tube body 2 close to the insertion end 4, and a first branch tube 6 connected to the air bag 5, the first end of the air bag 5 is close to the pipe joint 3, the second end of the air bag 5 is close to the insertion end 4, the first end of the air bag 5 is provided with a accommodating cavity 7 for accommodating sputum, and the cannula 1 also includes a second branch tube 8 extending into the accommodating cavity 7 and used for sucking out sputum.

[0021] When using the endotracheal cannula 1 of the present invention, the cannula 1 can be inserted to a desired position, and then the airbag 5 can be inflated through the first branch pipe 6 to fix the cannula 1. When the sputum in the user's mouth flows to the airbag 5, it first enters the accommodating cavity 7 at the first end of the airbag 5 for storage. After the sputum accumulates to a certain amount, the sputum stored in the accommodating cavity 7 is sucked out through the second branch pipe 8 to prevent a large amount of sputum from accumulating and flowing into the lungs.

[0022] To facilitate the installation and accommodation of the first branch pipe 6 and the second branch pipe 8, preferably, the pipe body 2 includes an inner pipe and an outer pipe fixedly sleeved outside the inner pipe, and an annular cavity is formed between the inner pipe and the outer pipe, and the first branch pipe 6 and the second branch pipe 8 are both arranged in the annular cavity. It can be understood that the first branch pipe 6 and the second branch pipe 8 are partially accommodated in the annular cavity, and the first end and the second end thereof are both extended from the annular cavity to the outside of the annular cavity.

[0023] Furthermore, the first end of the inner tube is sealed to the first end of the outer tube, thereby sealing the first end of the annular cavity. The second end of the inner tube is sealed to the second end of the outer tube, thereby sealing the second end of the annular cavity.

[0024] To help medical staff understand the air pressure in the airbag 5 during the inflation process, an inflation connector 9 is provided at the first end of the first branch pipe 6, the second end of the first branch pipe 6 is connected to the airbag 5, and the first end of the first branch pipe 6 is also provided with a pressure detection valve 10 connected to the first branch pipe 6.

[0025] During the inflation process or after the inflation is completed, medical personnel can understand the air pressure in the airbag 5 based on the data on the pressure detection valve 10, thereby helping the medical personnel to determine whether the airbag 5 needs to continue to be inflated or deflated.

[0026] In the endotracheal tube 1 described in the present invention, the second end of the second branch tube 8 is inserted into the accommodating cavity 7 and fixedly connected to the airbag 5 , and a suction port 11 is provided on the side wall of the second end of the second branch tube 8 for allowing sputum to enter the second branch tube 8 .

[0027] Furthermore, the first end of the second branch pipe 8 is provided with a liquid suction device 12 which is detachably connected to the first end of the second branch pipe 8 .

[0028] Specifically, the suction device 12 is a manually pressurized air bag, a syringe or a micro suction pump.

[0029] Furthermore, a central hole is provided in the center of the airbag 5 for the tube body 2 to pass through, and a sealing cover is also provided on the tube body 2 between the insertion end 4 and the airbag 5 , and the sealing cover is used to cover the gap between the central hole and the tube body 2 .

[0030] Furthermore, the sealing cover includes a sleeve 13 rotatably mounted on the tube body 2 , and a sealing ring 14 fixed to a first end of the sleeve 13 , and the sealing ring 14 is used to block the gap between the center hole and the tube body 2 .

[0031] Furthermore, an external thread 15 is provided at the second end of the tube body 2 near the second end of the airbag 5 , and an internal thread that can be threadedly connected to the external thread 15 is provided on the inner wall of the sleeve 13 .

[0032] In order to facilitate the adjustment of the position of the airbag 5, the airbag 5 on many existing cannulas 1 is movably arranged on the tube body 2, which causes a gap to easily exist between the central hole of the airbag 5 and the tube body 2, causing sputum to flow into the lungs from the gap. Therefore, in the present application, a sealing cover is provided to block the gap between the central hole and the tube body 2 to prevent sputum from flowing in.

[0033] Before inserting the cannula 1, the sealing cover can be rotated and adjusted to a position close to the second end of the airbag 5. After the airbag 5 is inflated, the second end of the airbag 5 expands and seals against the sealing cover to form a seal.

[0034] Preferably, in order to prevent the sealing cover from falling off, a stop ring (not shown) is provided at the second end of the tube body 2 near the insertion end 4 to prevent the sealing cover from falling off.

[0035] In order to help medical staff understand the insertion depth of the tube body 2, scale lines are provided on the outer wall of the tube body 2.

[0036] The tracheal cannula of the embodiment of the present invention has at least the following beneficial effects: when using the tracheal cannula of the present invention, the cannula can be inserted to the desired position, and then the airbag can be inflated through the first branch tube to achieve the fixation of the cannula. When the sputum in the user's mouth flows to the airbag, it first enters the accommodating cavity at the first end of the airbag for storage. After the sputum accumulates to a certain amount, the sputum stored in the accommodating cavity is sucked out through the second branch tube to prevent a large amount of sputum from accumulating and at the same time prevent the sputum from flowing into the lungs.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tracheal intubation, characterized in that: The cannula comprises a tube body, a pipe joint arranged at a first end of the tube body, an insertion end arranged at a second end of the tube body, an air bag arranged on the tube body near the insertion end, and a first branch pipe connected to the air bag, the first end of the air bag is near the pipe joint, the second end of the air bag is near the insertion end, the first end of the air bag is provided with a receiving cavity for receiving sputum, the cannula also comprises a second branch pipe extending into the receiving cavity and used for sucking out sputum; a center hole is provided at the center of the air bag for the tube body to pass through, a sealing cover is also provided on the tube body between the insertion end and the air bag, the sealing cover is used to cover the gap between the center hole and the tube body; the sealing cover comprises a sleeve rotatably sleeved on the tube body, and a sealing ring fixedly provided at the first end of the sleeve, the sealing ring is used to block the gap between the center hole and the tube body; an external thread is provided at the second end of the tube body near the second end of the air bag, and an internal thread is provided on the inner side wall of the sleeve that can be screwed with the external thread; An inflation joint is provided at the first end of the first branch pipe, the second end of the first branch pipe is communicated with the air bag, and a pressure detection valve communicated with the first branch pipe is also provided at the first end of the first branch pipe.

2. The endotracheal tube according to claim 1, characterized in that: The tube body comprises an inner tube and an outer tube fixedly sleeved outside the inner tube, an annular cavity is formed between the inner tube and the outer tube, and the first branch tube and the second branch tube are both arranged in the annular cavity.

3. The endotracheal tube according to claim 1, characterized in that: The second end of the second branch tube is inserted into the accommodating cavity and fixedly connected to the air bag. A liquid suction port is provided on the side wall of the second end of the second branch tube for allowing sputum to enter the second branch tube.

4. The endotracheal tube according to claim 3, characterized in that: The first end of the second branch pipe is provided with a liquid suction device detachably connected to the first end of the second branch pipe.

5. The endotracheal tube according to claim 4, characterized in that: The liquid suction device is a manually pressed air bag, a syringe or a micro liquid suction pump.

6. The endotracheal tube according to claim 1, characterized in that: The outer side wall of the tube body is provided with scale lines.

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