Air pressure monitoring and adjusting equipment and air pressure monitoring and adjusting method for trachea cannula balloon

Abstract

The invention discloses trachea cannula balloon air pressure monitoring and adjusting equipment and an air pressure monitoring and adjusting method, and relates to the field of trachea cannula equipment. The reciprocating driving assembly drives the piston to reciprocate in the air pressure pipe, when the piston moves towards the outer side end of the air pressure pipe, the piston can suck outside air into the air pressure pipe through the one-way air inlet valve, when the piston moves towards the inner side end of the air pressure pipe, the piston conveys the sucked air to the balloon through the one-way air outlet valve and the air guide pipe, and reciprocating is conducted in this way; the piston is driven to reciprocate in the pneumatic tube to continuously inflate the balloon, so that the balloon is gradually bulged and flexibly supported in the trachea, the cannula is positioned, meanwhile, the air pressure in the tube and the balloon is monitored through the air pressure monitoring mechanism, and when it is monitored that the air pressure value reaches a preset value, inflation is stopped. Therefore, the inflation pressure of the balloon can be accurately controlled through the cooperation of automatic inflation and air pressure monitoring, and the comfort and the stability of tracheal intubation are improved.

Description

Technical Field

[0001] The present invention belongs to the field of endotracheal intubation equipment, and in particular relates to an endotracheal intubation balloon air pressure monitoring and adjustment device and an air pressure monitoring and adjustment method. Background Art

[0002] Endotracheal intubation involves inserting a specialized endotracheal tube through the mouth or nose, transglottis, and into the trachea or bronchus. This procedure provides optimal airway patency, ventilation, oxygenation, and suction, and is a crucial procedure for rescuing patients with respiratory dysfunction. Endotracheal intubation typically incorporates an inflatable retaining balloon, which extends through the catheter to allow for gas introduction. Once inflated, the balloon secures the tube in the trachea, securing it in place.

[0003] In the existing technology, when the balloon is inflated, medical staff need to rely on their experience to judge the balloon pressure and promptly shut off the gas in the input tube. The pressure of the fixed balloon is highly dependent on the operating experience of the medical staff, resulting in low accuracy in the pressure control of the balloon, which makes it easy for the pressure in the balloon to be too high or too low. Excessive air pressure will compress the side wall of the patient's respiratory tract, while too low air pressure will make it impossible to stabilize the endotracheal tube. Summary of the Invention

[0004] In response to the problems in the related art, the present invention proposes a tracheal intubation balloon air pressure monitoring and adjustment device and an air pressure monitoring and adjustment method to overcome the above-mentioned technical problems existing in the existing related art.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a tracheal intubation balloon air pressure monitoring and regulating device, comprising an intubation tube and a balloon arranged on the outer ring of the intubation tube end, an airway tube being connected and mounted on the balloon, and an inflation regulating mechanism being connected to one end of the airway tube;

[0007] The inflation adjustment mechanism includes an air pressure tube, a piston is slidably installed inside the air pressure tube, a reciprocating drive assembly capable of driving the piston to move back and forth is installed at one end of the air pressure tube, a one-way air inlet valve and a one-way exhaust valve are connected to the other end of the air pressure tube, the one-way exhaust valve is connected to the air guide pipe, and an air pressure monitoring mechanism for monitoring the pipeline air pressure is also installed between the one-way exhaust valve and the air guide pipe;

[0008] The one-way air inlet valve and the one-way air exhaust valve are equipped with a valve opening and closing control component. When the air pressure monitoring mechanism detects that the air pressure in the pipeline reaches a specified value, the valve opening and closing control component controls the one-way air inlet valve to close and stop air intake. At the same time, the valve opening and closing control component controls the one-way air exhaust valve to remain in a conducting state, so that the air pressure tube, the air guide tube and the balloon always maintain a two-way connection state.

[0009] Furthermore, the inflation adjustment mechanism also includes a shell, the air pressure tube and the reciprocating drive assembly are fixedly installed in the shell, and a single-chip microcomputer controller is also installed in the shell. The air pressure monitoring mechanism is signal-connected to the single-chip microcomputer controller, and the single-chip microcomputer controller is electrically connected to the reciprocating drive assembly and the valve opening and closing control assembly.

[0010] Furthermore, a connector extending to the outside of the shell is fixedly installed at one end of the shell, the one-way exhaust valve and the connector are connected through an internal connecting pipe, the air pressure monitoring mechanism is installed and connected to the internal connecting pipe, and an intermediate connecting pipe is inserted at the outer end of the connector, and one end of the intermediate connecting pipe is plugged into and connected to the end of the air guide pipe.

[0011] Furthermore, the reciprocating drive assembly includes a variable frequency motor and a piston rod, the piston rod is fixedly mounted on one end of the piston, and one end of the piston rod extends to the outside of the pneumatic tube, the variable frequency motor is arranged on one side of the end of the pneumatic tube, and the output end transmission of the variable frequency motor is equipped with a turntable, one end of the turntable is equipped with an eccentric connecting shaft, a connecting rod is rotatably mounted on the eccentric connecting shaft, and one end of the connecting rod is rotatably connected to the outer end of the piston rod.

[0012] Furthermore, a screw rod is rotatably installed on one side of the turntable, one end of the screw rod is transmission-connected to a motor, an eccentric connecting seat is threadedly installed on the screw rod, one end of the eccentric connecting seat slides against the side of the turntable, and the other end of the eccentric connecting seat is fixedly installed with the eccentric connecting shaft.

[0013] Furthermore, the one-way intake valve includes an intake valve body, an intake valve core is sealingly and slidingly installed inside the intake valve body, an intake air guide cavity is provided inside the intake valve body near one end of the air pressure tube, the intake valve core is a cylindrical structure sealed at one end, an intake hole is provided on the intake valve core near one end of the intake air guide cavity, and an intake valve pressure spring is installed inside the intake air guide cavity to abut against one end of the intake valve core.

[0014] Furthermore, the one-way exhaust valve includes an exhaust valve body, an exhaust valve core is sealingly and slidingly installed inside the exhaust valve body, an exhaust air guide cavity is provided at the end of the exhaust valve body away from the air pressure tube, the exhaust valve core is a cylindrical structure sealed at one end, an exhaust hole is provided on the end of the exhaust valve core close to the exhaust air guide cavity, and an exhaust valve pressure spring is installed inside the exhaust air guide cavity to abut against one end of the exhaust valve core.

[0015] Furthermore, the valve opening and closing control assembly includes an intake valve electromagnetic plate, an intake valve positioning magnet, an exhaust valve positioning magnet and an exhaust valve electromagnetic plate, the intake valve electromagnetic plate is fixedly mounted on one end inside the intake valve body, and the intake valve positioning magnet is fixedly mounted on the outer ring of one end of the intake valve core;

[0016] The exhaust valve electromagnetic plate is fixedly installed inside the exhaust valve body, and the exhaust valve positioning magnet is fixedly installed on the outer ring of one end of the exhaust valve core.

[0017] Furthermore, the air pressure monitoring mechanism includes an air pressure detection chamber, the air pressure detection chamber is connected to the one-way exhaust valve, and an air pressure detection sensor is connected and installed on the air pressure detection chamber.

[0018] The present invention also discloses a method for monitoring and adjusting air pressure of an endotracheal tube balloon, the specific steps of which are as follows:

[0019] When the cannula is inserted into the patient's trachea, the balloon enters the patient's trachea along with the insertion end of the cannula, and then the reciprocating drive assembly drives the piston to move back and forth in the air pressure tube. When the piston moves toward the outer end of the air pressure tube, the piston can suck the outside air into the air pressure tube through the one-way air inlet valve. When the piston moves toward the inner end of the air pressure tube, the piston transports the sucked air to the balloon through the one-way exhaust valve and the airway tube. In this way, the balloon is continuously inflated by driving the piston to move back and forth in the air pressure tube, so that the balloon gradually swells and is flexibly supported in the trachea to position the cannula;

[0020] At the same time, the air pressure in the pipeline and the balloon is monitored by the air pressure monitoring mechanism. When the air pressure value reaches a predetermined value, the valve opening and closing control component controls the one-way intake valve to close and lock to stop the intake. At the same time, the valve opening and closing control component controls the one-way exhaust valve to maintain a normally open state of two-way conduction. The reciprocating drive component then drives the piston to move back and forth at the same frequency as the contraction and relaxation of the trachea, so that when the trachea contracts and the balloon is compressed and the air pressure increases, the piston can move toward the outer end of the air pressure tube, and reversely suck part of the gas in the balloon into the air pressure tube through the one-way exhaust valve. When the trachea relaxes and the pressure on the balloon decreases, the piston can move toward the inner end of the air pressure tube, and the gas in the air pressure tube is transported back to the balloon through the one-way exhaust valve and the air guide tube to increase the balloon air pressure.

[0021] The present invention has the following beneficial effects:

[0022] When the piston moves toward the outer end of the air tube, the piston can suck the outside air into the air tube through the one-way inlet valve. When the piston moves toward the inner end of the air tube, the piston will suck the air into the balloon through the one-way exhaust valve and the air guide tube. In this reciprocating manner, the balloon is continuously inflated by driving the piston to move back and forth in the air tube, so that the balloon gradually swells and flexibly supports the trachea to position the intubation tube. At the same time, the air pressure in the pipeline and the balloon is monitored by the air pressure monitoring mechanism. When the monitored air pressure value reaches a predetermined value, the inflation is stopped. The automatic inflation and air pressure monitoring can be used to accurately control the inflation pressure of the balloon, thereby preventing the balloon air pressure from being too high to compress the side wall of the patient's respiratory tract or the air pressure from being too low to stabilize the tracheal intubation, thereby improving the comfort and stability of tracheal intubation.

[0023] 2. In the present invention, when the balloon is inflated, the valve opening and closing control component controls the one-way air inlet valve to close and lock to stop air intake, and the valve opening and closing control component controls the one-way exhaust valve to maintain a normally open state of two-way conduction, and then the reciprocating drive component drives the piston to reciprocate at the same frequency as the contraction and relaxation of the trachea, so that when the trachea contracts and the balloon is compressed and the contraction pressure increases, the piston can move toward the outer end of the air pressure tube, and reversely suck part of the gas in the balloon into the air pressure tube through the one-way exhaust valve, so that the balloon contracts with the trachea; when the pressure on the trachea relaxes and the balloon decreases, the piston can move toward the inner end of the air pressure tube, and transport the gas in the air pressure tube back into the balloon through the one-way exhaust valve and the airway tube to increase the balloon pressure and make the balloon relax with the trachea; thus, the reciprocating movement of the piston can drive the balloon to contract and relax synchronously with the trachea, preventing the balloon from compressing the trachea due to tracheal contraction or preventing the balloon from having too low a pressure in the balloon due to tracheal relaxation and making it impossible to stabilize the tracheal intubation, thereby further improving the comfort and stability of tracheal intubation.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the balloon air pressure monitoring and regulating device of the present invention;

[0027] Figure 2 This is the second schematic diagram of the three-dimensional structure of the balloon air pressure monitoring and regulating device of the present invention;

[0028] Figure 3 For the present invention Figure 2 A local enlarged structural diagram of point A;

[0029] Figure 4 This is the third schematic diagram of the three-dimensional structure of the bag air pressure monitoring and regulating device of the present invention;

[0030] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at point B;

[0031] Figure 6 This is the fourth schematic diagram of the three-dimensional structure of the bag air pressure monitoring and regulating device of the present invention;

[0032] Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at point C;

[0033] Figure 8 For the present invention Figure 6 Schematic diagram of the local enlarged structure at point D.

[0034] Figure: 1, cannula; 2, balloon; 3, airway tube; 4, intermediate connecting tube; 5, inflation adjustment mechanism; 51, housing; 52, air pressure tube; 53, frequency conversion motor; 54, turntable; 55, connecting rod; 56, piston rod; 57, one-way air inlet valve; 58, one-way air exhaust valve; 59, internal connecting tube; 510, joint; 511, eccentric connecting seat; 512, screw rod; 513, motor; 514, eccentric connecting shaft; 515, piston; 5701, air inlet valve body; 5702, air inlet Valve core; 5703, air inlet hole; 5704, air inlet air guide cavity; 5705, air inlet valve pressure spring; 5706, air inlet valve solenoid; 5707, air inlet valve positioning magnet; 5801, exhaust valve body; 5802, exhaust valve core; 5803, exhaust hole; 5804, exhaust air guide cavity; 5805, exhaust valve pressure spring; 5806, exhaust valve positioning magnet; 5807, exhaust valve solenoid; 6, air pressure monitoring mechanism; 61, air pressure detection chamber; 62, air pressure detection sensor. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0037] Example 1

[0038] See also Figure 1-Figure 5 As shown, the present invention is a tracheal intubation balloon air pressure monitoring and adjustment device, comprising a cannula 1 and a balloon 2 arranged on the outer ring of the end of the cannula 1, an airway tube 3 is connected to the balloon 2, and one end of the airway tube 3 is connected to an inflation adjustment mechanism 5;

[0039] The inflation adjustment mechanism 5 includes an air pressure tube 52, in which a piston 515 is slidably mounted. A reciprocating drive assembly capable of driving the piston 515 to reciprocate is mounted at one end of the air pressure tube 52. A one-way air inlet valve 57 and a one-way exhaust valve 58 are connected to the other end of the air pressure tube 52. The one-way exhaust valve 58 is in communication with the air guide pipe 3. An air pressure monitoring mechanism 6 for monitoring the air pressure in the pipeline is also mounted between the one-way exhaust valve 58 and the air guide pipe 3.

[0040] A valve opening and closing control assembly is installed in the one-way air inlet valve 57 and the one-way air exhaust valve 58. When the air pressure monitoring mechanism 6 detects that the air pressure in the pipeline reaches a specified value, the valve opening and closing control assembly controls the one-way air inlet valve 57 to close and stop air intake. At the same time, the valve opening and closing control assembly controls the one-way air exhaust valve 58 to remain in a conducting state, so that the air pressure tube 52 always maintains a two-way communication state with the airway tube 3 and the balloon 2.

[0041] When the device is used, the cannula 1 is inserted into the patient's trachea, and the balloon 2 enters the patient's trachea along with the insertion end of the cannula 1. Then, the piston 515 is driven to move back and forth in the air pressure tube 52 by the reciprocating drive assembly. When the piston 515 moves toward the outer end of the air pressure tube 52, the piston 515 can suck the outside air into the air pressure tube 52 through the one-way air inlet valve 57. When the piston 515 moves toward the inner end of the air pressure tube 52, the piston 515 transports the sucked air to the balloon 2 through the one-way exhaust valve 58 and the airway tube 3. In this way, the balloon 2 is continuously inflated by driving the piston 515 to move back and forth in the air pressure tube 52, so that the balloon 2 gradually swells and is flexibly supported in the trachea to position the cannula 1. At the same time, the air pressure in the pipeline and the balloon 2 is monitored by the air pressure monitoring mechanism 6. When the air pressure reaches a predetermined value, the one-way air inlet valve 57 is closed and locked by the valve opening and closing control component to stop air intake. At the same time, the one-way exhaust valve 58 is controlled by the valve opening and closing control component to maintain a normally open state of two-way conduction. Then, the reciprocating drive component drives the piston 515 to reciprocate at the same frequency as the contraction and relaxation of the trachea, so that when the trachea contracts, the piston 515 can move toward the outer end of the air pressure tube 52, and reversely suck part of the gas in the balloon 2 into the air pressure tube 52 through the one-way exhaust valve 58, so that the balloon 2 contracts synchronously. When the trachea relaxes, the piston 515 can move toward the inner end of the air pressure tube 52, and the gas in the air pressure tube 52 is transported back to the balloon 2 through the one-way exhaust valve 58 and the airway tube 3 to increase the air pressure of the balloon 2, so that the balloon 2 relaxes synchronously.

[0042] In this embodiment, the inflation pressure of the balloon 2 can be accurately controlled by coordinating automatic inflation with air pressure monitoring, preventing the balloon 2 from having excessive pressure that compresses the side walls of the patient's respiratory tract or preventing the balloon 2 from having too little pressure to stabilize the intubation 1, thereby improving the comfort and stability during tracheal intubation; the balloon 2 is driven to contract and relax synchronously with the trachea by the reciprocating movement of the piston 515, preventing the balloon 2 from compressing the trachea due to tracheal contraction or preventing the balloon 2 from having too little pressure to stabilize the intubation 1 due to tracheal relaxation, thereby further improving the comfort and stability during tracheal intubation.

[0043] Example 2

[0044] See also Figure 1-Figure 3 As shown, the difference between this embodiment and the above embodiment is that the inflation adjustment mechanism 5 further includes a housing 51, the air pressure tube 52 and the reciprocating drive assembly are fixedly installed in the housing 51, a single-chip microcomputer controller is also installed in the housing 51, the air pressure monitoring mechanism 6 is signal-connected to the single-chip microcomputer controller, and the single-chip microcomputer controller is electrically connected to the reciprocating drive assembly and the valve opening and closing control assembly;

[0045] A connector 510 extending to the outside of the shell 51 is fixedly installed at one end of the shell 51. The one-way exhaust valve 58 is connected to the connector 510 through an internal connecting pipe 59. The air pressure monitoring mechanism 6 is installed and connected to the internal connecting pipe 59. An intermediate connecting pipe 4 is inserted into the outer end of the connector 510. One end of the intermediate connecting pipe 4 is plugged into and connected to the end of the air guide pipe 3.

[0046] By setting up a single-chip microcomputer controller, automatic inflation and air pressure monitoring can be achieved when inflating the balloon 2, making the balloon 2 inflation and air pressure monitoring and adjustment process more convenient and intelligent. By setting up an intermediate connecting pipe 4 for connection, the distance between the device shell 51 and the cannula 1 can be extended, which facilitates the installation and placement of the shell 51 during tracheal intubation.

[0047] Example 3

[0048] See also Figure 2-Figure 5 As shown, the difference between this embodiment and the above embodiment is that the reciprocating drive assembly includes a variable frequency motor 53 and a piston rod 56. The piston rod 56 is fixedly mounted on one end of the piston 515, and one end of the piston rod 56 extends to the outside of the air pressure tube 52. The variable frequency motor 53 is arranged on one side of the end of the air pressure tube 52. The output end of the variable frequency motor 53 is driven and installed with a turntable 54. An eccentric connecting shaft 514 is installed at one end of the turntable 54. A connecting rod 55 is rotatably mounted on the eccentric connecting shaft 514. One end of the connecting rod 55 is rotatably connected to the outer end of the piston rod 56.

[0049] When the balloon 2 is inflated and the air pressure is adjusted, the turntable 54 is driven to rotate by the variable frequency motor 53. When the turntable 54 rotates, the piston rod 56 is driven to move back and forth through the eccentric connecting shaft 514 and the connecting rod 55, so that the piston rod 56 drives the piston 515 to move back and forth in the air pressure tube 52, thereby inflating the balloon 2 and adjusting the air pressure by the suction air when the piston 515 moves back and forth; and in the process of air pressure adjustment, the reciprocating speed of the control piston 515 can be adjusted by controlling the rotation speed of the variable frequency motor 53, so that the reciprocating speed of the piston 515 is the same as the contraction and relaxation speed of the trachea, thereby accurately controlling the synchronous contraction and relaxation of the balloon 2 and the trachea, so as to improve the comfort and stability during tracheal intubation.

[0050] Furthermore, a screw rod 512 is rotatably mounted on one side of the turntable 54. One end of the screw rod 512 is transmission-connected to a motor 513. An eccentric connecting seat 511 is threadedly mounted on the screw rod 512. One end of the eccentric connecting seat 511 slides against the side of the turntable 54. The other end of the eccentric connecting seat 511 is fixedly mounted to an eccentric connecting shaft 514.

[0051] The screw rod 512 is arranged along the radial direction of the turntable 54. When the motor 513 drives the screw rod 512 to rotate, the screw rod 512 can drive the eccentric connecting seat 511 to move along the radial direction of the turntable 54 through thread transmission, thereby driving the eccentric connecting shaft 514 to move along the radial direction of the turntable 54 to adjust the eccentricity of the eccentric connecting shaft 514. When the eccentricity of the eccentric connecting shaft 514 is adjusted to be reduced, the distance that the turntable 54 rotates one circle to drive the piston 515 to move back and forth is reduced, and the reciprocating gas delivery volume is reduced. When the eccentricity of the eccentric connecting shaft 514 is adjusted to be reduced, the distance that the piston 515 drives to move back and forth is reduced, and the reciprocating gas delivery volume is reduced. When the eccentricity is adjusted to increase, the distance that the turntable 54 drives the piston 515 to move back and forth increases after one rotation of the turntable 54, and the amount of reciprocating air is increased; thus, when the air pressure of the balloon 2 is adjusted, the eccentricity of the eccentric connecting shaft 514 can be adjusted accordingly according to the contraction and relaxation amplitude of the trachea, so that the air pressure adjusted by the suction pump when the piston 515 moves back and forth is exactly the same as the air pressure fluctuation of the balloon 2 caused by the contraction and relaxation of the trachea, thereby enabling the piston 515 to accurately adjust the air pressure in the balloon 2 when it moves back and forth, so that the air pressure in the balloon 2 remains stable.

[0052] Example 4

[0053] See also Figure 4-Figure 8 As shown, the difference between this embodiment and the above embodiment is that the one-way air intake valve 57 includes an air intake valve body 5701, an air intake valve core 5702 is sealingly and slidably mounted inside the air intake valve body 5701, an air intake air guide cavity 5704 is provided inside the air intake valve body 5701 near the end of the air pressure tube 52, the air intake valve core 5702 is a cylindrical structure with one end sealed, an air intake hole 5703 is provided on the end of the air intake valve core 5702 near the air intake air guide cavity 5704, and an air intake valve pressure spring 5705 is mounted inside the air intake air guide cavity 5704 and abuts against one end of the air intake valve core 5702;

[0054] The one-way exhaust valve 58 includes an exhaust valve body 5801, within which an exhaust valve core 5802 is sealingly and slidably mounted. An exhaust air guide cavity 5804 is provided at the end of the exhaust valve body 5801 away from the air pressure tube 52. The exhaust valve core 5802 is a cylindrical structure with one end sealed. An exhaust hole 5803 is provided on the end of the exhaust valve core 5802 proximal to the exhaust air guide cavity 5804. An exhaust valve pressure spring 5805 is mounted within the exhaust air guide cavity 5804, abutting against one end of the exhaust valve core 5802.

[0055] Among them, the air inlet hole 5703 and the exhaust hole 5803 are initially sealed by the inner wall of the valve body, so that the valve is in a closed state. During the inflation process, when the piston 515 moves toward the outer end of the air pressure tube 52 (away from the valve), the space in the air pressure tube 52 increases to form a negative pressure. At this time, the negative pressure suction in the air pressure tube 52 sucks the air inlet valve core 5702 toward the air pressure tube 52, so that the air inlet hole 5703 on the air inlet valve core 5702 moves to the air inlet guide cavity 5704, thereby opening the one-way air inlet valve 57 and sucking outside air into the air pressure tube. In the tube 52, when the piston 515 moves toward the inner end of the air pressure tube 52 (close to the valve), the gas in the air pressure tube 52 is squeezed and contracted to form a positive pressure, and the exhaust valve core 5802 is pushed to the right by the air pressure, so that the exhaust hole 5803 on the exhaust valve core 5802 moves to the exhaust air guide cavity 5804, thereby opening the one-way exhaust valve 58, so that the gas in the air pressure tube 52 can be transported into the balloon 2; through the cooperation of the one-way air inlet valve 57 and the one-way exhaust valve 58, the gas can be continuously sucked and transported into the balloon 2 to inflate the balloon 2.

[0056] Furthermore, the valve opening and closing control assembly includes an intake valve solenoid 5706, an intake valve positioning magnet 5707, an exhaust valve positioning magnet 5806, and an exhaust valve solenoid 5807. The intake valve solenoid 5706 is fixedly mounted on one end of the interior of the intake valve body 5701, and the intake valve positioning magnet 5707 is fixedly mounted on the outer ring of one end of the intake valve core 5702; the exhaust valve solenoid 5807 is fixedly mounted on the interior of the exhaust valve body 5801, and the exhaust valve positioning magnet 5806 is fixedly mounted on the outer ring of one end of the exhaust valve core 5802;

[0057] When the inflation is completed and the air pressure of the balloon 2 needs to be adjusted, the inlet valve solenoid 5706 and the exhaust valve solenoid 5807 are energized and opened. At this time, the inlet valve solenoid 5706 is energized to generate magnetic force, which attracts and fixes the inlet valve positioning magnet 5707 to the left, thereby attracting and locking the inlet valve core 5702, so that the one-way inlet valve 57 is always in a closed state. At the same time, after the exhaust valve solenoid 5807 is energized to generate magnetic force, the exhaust valve positioning magnet 5806 is attracted and moved to the right, thereby driving the exhaust valve core 5802 to move to the right, so that the one-way exhaust valve 58 is opened. The exhaust valve positioning magnet 5806 and the exhaust valve solenoid 5807 are attracted and locked, so that the one-way exhaust valve 58 is continuously in a conductive state. When the piston 515 moves back and forth, the gas in the balloon 2 can be sucked out or pumped into the balloon 2 through the one-way exhaust valve 58 to adjust and change the air pressure in the balloon 2.

[0058] Example 5

[0059] See also Figure 2 、 Figure 3As shown, the difference between this embodiment and the above embodiment is that the air pressure monitoring mechanism 6 includes an air pressure detection chamber 61, the air pressure detection chamber 61 is connected to the one-way exhaust valve 58, and an air pressure detection sensor 62 is connected and installed on the air pressure detection chamber 61;

[0060] Among them, the air pressure detection chamber 61 is also connected to the internal connecting tube 59, so that the air pressure detection chamber 61, the internal connecting tube 59, the intermediate connecting tube 4, the air guide tube 3 and the balloon 2 are in a connected state, and the air pressure in the entire air guide channel is connected, so that the air pressure in the air pressure detection chamber 61 is detected by the air pressure detection sensor 62, that is, the air pressure in the balloon 2 can be measured, making the air pressure detection of the balloon 2 more convenient.

[0061] Example 6

[0062] This embodiment discloses a method for monitoring and adjusting the air pressure of an endotracheal tube balloon, and the specific steps are as follows:

[0063] When the cannula 1 is inserted into the patient's trachea, the balloon 2 enters the patient's trachea along with the insertion end of the cannula 1, and then the piston 515 is driven by the reciprocating drive assembly to reciprocate in the air pressure tube 52. When the piston 515 moves toward the outer end of the air pressure tube 52, the piston 515 can suck the outside air into the air pressure tube 52 through the one-way air inlet valve 57. When the piston 515 moves toward the inner end of the air pressure tube 52, the piston 515 transports the sucked air to the balloon 2 through the one-way exhaust valve 58 and the airway tube 3. In this way, the piston 515 is driven to move back and forth in the air pressure tube 52 to continuously inflate the balloon 2, so that the balloon 2 gradually swells and is flexibly supported in the trachea, thereby positioning the cannula 1.

[0064] At the same time, the air pressure in the pipeline and the balloon 2 is monitored by the air pressure monitoring mechanism 6. When the air pressure value reaches a predetermined value, the valve opening and closing control component controls the one-way intake valve 57 to close and lock to stop the intake. At the same time, the valve opening and closing control component controls the one-way exhaust valve 58 to maintain a normally open state of two-way conduction. Then, the reciprocating drive component drives the piston 515 to reciprocate at the same frequency as the contraction and relaxation of the trachea, so that when the trachea contracts and the balloon 2 is compressed and the air pressure increases, the piston 515 can move toward the outer end of the air pressure tube 52, and reversely suck part of the gas in the balloon 2 into the air pressure tube 52 through the one-way exhaust valve 58. When the pressure on the balloon 2 during tracheal relaxation decreases, the piston 515 can move toward the inner end of the air pressure tube 52, and the gas in the air pressure tube 52 is transported back to the balloon 2 through the one-way exhaust valve 58 and the air guide tube 3 to increase the air pressure of the balloon 2.

[0065] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0066] The preferred embodiments of the invention disclosed above are intended only to help illustrate the invention. These preferred embodiments do not exhaust all details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A tracheal intubation balloon pressure monitoring and regulating device, comprising an intubation tube and a balloon disposed on the outer ring of the intubation tube end, characterized in that: An airway tube is connected to the balloon, and one end of the airway tube is connected to an inflation adjustment mechanism; The inflation adjustment mechanism includes an air pressure tube, a piston is slidably installed inside the air pressure tube, a reciprocating drive assembly capable of driving the piston to move back and forth is installed at one end of the air pressure tube, a one-way air inlet valve and a one-way exhaust valve are connected to the other end of the air pressure tube, the one-way exhaust valve is connected to the air guide pipe, and an air pressure monitoring mechanism for monitoring the pipeline air pressure is also installed between the one-way exhaust valve and the air guide pipe; The one-way air inlet valve and the one-way air exhaust valve are equipped with a valve opening and closing control component. When the air pressure monitoring mechanism detects that the air pressure in the pipeline reaches a specified value, the valve opening and closing control component controls the one-way air inlet valve to close and stop air intake. At the same time, the valve opening and closing control component controls the one-way air exhaust valve to remain in a conducting state, so that the air pressure tube, the air guide tube and the balloon always maintain a two-way connection state.

2. The endotracheal tube balloon air pressure monitoring and adjustment device according to claim 1, characterized in that: The inflation adjustment mechanism also includes a shell, the air pressure tube and the reciprocating drive assembly are fixedly installed in the shell, and a single-chip microcomputer controller is also installed in the shell. The air pressure monitoring mechanism is signal-connected to the single-chip microcomputer controller, and the single-chip microcomputer controller is electrically connected to the reciprocating drive assembly and the valve opening and closing control assembly.

3. The endotracheal tube balloon air pressure monitoring and adjustment device according to claim 2, characterized in that: A joint extending to the outside of the shell is fixedly installed at one end of the shell, the one-way exhaust valve and the joint are connected through an internal connecting pipe, the air pressure monitoring mechanism is installed and connected to the internal connecting pipe, and an intermediate connecting pipe is inserted at the outer end of the joint, and one end of the intermediate connecting pipe is plugged into and connected to the end of the air guide pipe.

4. The endotracheal tube balloon air pressure monitoring and regulating device according to claim 1, characterized in that: The reciprocating drive assembly includes a variable frequency motor and a piston rod, the piston rod is fixedly mounted on one end of the piston, and one end of the piston rod extends to the outside of the pneumatic tube, the variable frequency motor is arranged on one side of the end of the pneumatic tube, and the output end of the variable frequency motor is driven and installed with a turntable, one end of the turntable is installed with an eccentric connecting shaft, a connecting rod is rotatably mounted on the eccentric connecting shaft, and one end of the connecting rod is rotatably connected to the outer end of the piston rod.

5. The endotracheal tube balloon air pressure monitoring and regulating device according to claim 4, characterized in that: A screw is rotatably installed on one side of the turntable, one end of the screw is connected to a motor, an eccentric connecting seat is threadedly installed on the screw, one end of the eccentric connecting seat is slidably abutted against the side of the turntable, and the other end of the eccentric connecting seat is fixedly installed with the eccentric connecting shaft.

6. The endotracheal tube balloon air pressure monitoring and regulating device according to claim 1, characterized in that: The one-way intake valve includes an intake valve body, an intake valve core is sealingly and slidingly installed inside the intake valve body, an intake air guide cavity is provided inside the intake valve body near one end of the air pressure tube, the intake valve core is a cylindrical structure with one end sealed, an intake hole is provided on the intake valve core near one end of the intake air guide cavity, and an intake valve pressure spring is installed inside the intake air guide cavity, which abuts against one end of the intake valve core.

7. The endotracheal tube balloon air pressure monitoring and regulating device according to claim 6, characterized in that: The one-way exhaust valve includes an exhaust valve body, an exhaust valve core is sealingly and slidingly installed inside the exhaust valve body, an exhaust air guide cavity is provided at the end of the exhaust valve body away from the air pressure tube, the exhaust valve core is a cylindrical structure with one end sealed, an exhaust hole is provided on the end of the exhaust valve core close to the exhaust air guide cavity, and an exhaust valve pressure spring is installed inside the exhaust air guide cavity, which abuts against one end of the exhaust valve core.

8. The endotracheal tube balloon air pressure monitoring and regulating device according to claim 7, characterized in that: The valve opening and closing control assembly includes an intake valve electromagnetic plate, an intake valve positioning magnet, an exhaust valve positioning magnet and an exhaust valve electromagnetic plate. The intake valve electromagnetic plate is fixedly installed at one end inside the intake valve body, and the intake valve positioning magnet is fixedly installed on the outer ring of one end of the intake valve core. The exhaust valve electromagnetic plate is fixedly installed inside the exhaust valve body, and the exhaust valve positioning magnet is fixedly installed on the outer ring of one end of the exhaust valve core.

9. The endotracheal tube balloon air pressure monitoring and regulating device according to claim 1, characterized in that: The air pressure monitoring mechanism includes an air pressure detection chamber, the air pressure detection chamber is communicated with a one-way exhaust valve, and an air pressure detection sensor is connected and installed on the air pressure detection chamber.

10. A method for monitoring and adjusting air pressure of an endotracheal tube balloon, using the endotracheal tube balloon pressure monitoring and adjusting device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: When the cannula is inserted into the patient's trachea, the balloon enters the patient's trachea along with the insertion end of the cannula, and then the reciprocating drive assembly drives the piston to move back and forth in the air pressure tube. When the piston moves toward the outer end of the air pressure tube, the piston can suck the outside air into the air pressure tube through the one-way air inlet valve. When the piston moves toward the inner end of the air pressure tube, the piston transports the sucked air to the balloon through the one-way exhaust valve and the airway tube. In this way, the balloon is continuously inflated by driving the piston to move back and forth in the air pressure tube, so that the balloon gradually swells and is flexibly supported in the trachea to position the cannula; At the same time, the air pressure in the pipeline and the balloon is monitored by the air pressure monitoring mechanism. When the air pressure value reaches a predetermined value, the valve opening and closing control component controls the one-way intake valve to close and lock to stop the intake. At the same time, the valve opening and closing control component controls the one-way exhaust valve to maintain a normally open state of two-way conduction. The reciprocating drive component then drives the piston to move back and forth at the same frequency as the contraction and relaxation of the trachea, so that when the trachea contracts and the balloon is compressed and the air pressure increases, the piston can move toward the outer end of the air pressure tube, and reversely suck part of the gas in the balloon into the air pressure tube through the one-way exhaust valve. When the trachea relaxes and the pressure on the balloon decreases, the piston can move toward the inner end of the air pressure tube, and the gas in the air pressure tube is transported back to the balloon through the one-way exhaust valve and the air guide tube to increase the balloon air pressure.

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