A subglottic drainage and flushing device suitable for field environments

Abstract

The present invention relates to the field of medical instruments, and in particular to a subglottic drainage and flushing device suitable for outdoor environments, comprising an endotracheal tube, a balloon pressure measuring assembly being installed on the surface of the endotracheal tube, a balloon being provided on the surface of the endotracheal tube, a drainage tube being fixedly connected to the surface of the endotracheal tube, one end of the drainage tube being movably connected to a medical three-way tube, one end of the medical three-way tube being movably connected to a third connecting tube, a negative pressure suction assembly being movably installed on the other end of the medical three-way tube, a heating assembly being detachably connected to the surface of the third connecting tube, and one end of the third connecting tube being movably connected to a physiological saline bag. The flushing device can be controlled by a motor so that the pressure of the physiological saline is controllable during flushing, thereby preventing excessive pressure from forming a gap between the balloon and the airway wall or even causing damage to the balloon, leading to lung infection in the patient, and thereby facilitating the subglottic flushing operation of medical personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a subglottic drainage and flushing device suitable for outdoor environments. Background Art

[0002] Subglottic suction refers to an operation technique that uses a drainage tube attached to the wall of the endotracheal tube to perform continuous or intermittent negative pressure drainage of the retained material on the balloon. By connecting one end of the drainage tube in the wall of the endotracheal tube to a disposable sputum collector and the other end to a central negative pressure suction device, continuous or intermittent suction is performed with constant negative pressure. For patients who have been intubated through the mouth or nose for more than 48 or 72 hours and patients with tracheotomy, medical staff will select the appropriate subglottic suction method according to the patient's condition, and will also select the suction pressure according to the amount and viscosity of the patient's secretions to suction the retained material on the upper surface of the endotracheal tube balloon. This retained material is due to damage to the airway mucosa and other subglottic secretions formed by the artificial trachea and the airway. If it is not cleaned in time, the patient may be infected with respiratory diseases.

[0003] The current treatment method is generally to inject saline into the surface of the balloon and then extract it for repeated cleaning until the saline is clear. However, when saline enters the airway, it will irritate the airway due to the temperature difference and cause the patient's airway spasm. In addition, saline injection is usually performed by medical staff by hand, and there is uncontrollable pressure. If the injection and squeezing force is too large, a gap will form between the balloon and the airway wall or even damage the balloon, which will cause saline to enter the patient's lungs and cause infection and other problems. Summary of the Invention

[0004] In response to the above-mentioned problems existing in the prior art, the present invention provides a subglottic drainage and flushing device suitable for field environments. The flushing device can be controlled by a motor so that the pressure during saline flushing can be controlled, which can prevent excessive pressure from forming a gap between the balloon and the airway wall or even causing damage to the balloon, leading to lung infection in the patient. While solving the existing in-hospital cleaning problems, the device can be used in more complex field environments, increasing the convenience of subglottic flushing operations for medical staff, alleviating the pain of patients, and at the same time helping to improve cleaning efficiency.

[0005] The basic scheme of the present invention is: a subglottic drainage and flushing device suitable for outdoor environments, comprising an endotracheal tube, an airbag pressure measuring assembly installed on the surface of the endotracheal tube, a balloon provided on the surface of the endotracheal tube, a drainage tube fixedly connected to the surface of the endotracheal tube, one end of the drainage tube movably connected to a medical three-way tube, one end of the medical three-way tube movably connected to a third connecting tube, the other end of the medical three-way tube movably installed with a negative pressure suction assembly, the surface of the third connecting tube detachably connected to a heating assembly, one end of the third connecting tube movably connected to a physiological saline bag, the surface of the physiological saline bag is provided with an auxiliary positioning assembly, the surface of the physiological saline bag is provided with an extrusion assembly, a movable control assembly is installed between the auxiliary positioning assembly and the extrusion assembly, the surface of the third connecting tube is fixedly connected to a positioning block, and the positioning block is connected to the auxiliary positioning assembly.

[0006] Preferably, the heating assembly includes a first semicircular heating tube sleeve, a second semicircular heating tube sleeve and a friction pad, the first semicircular heating tube sleeve and the second semicircular heating tube sleeve are rotatably connected, and the contact surfaces between the first semicircular heating tube sleeve and the second semicircular heating tube sleeve are connected by magnetic attraction, and the inner walls of the first semicircular heating tube sleeve and the second semicircular heating tube sleeve are fixedly connected with the friction pad.

[0007] Preferably, the auxiliary positioning assembly includes a fixed cross bar, a drum bag fixed splint and a drum bag movable splint, the fixed cross bar and the drum bag fixed splint are fixedly connected, the fixed cross bar and the drum bag movable splint are rotatably connected, the drum bag movable splint and the drum bag fixed splint are detachably connected by bolts, one end of the positioning block is fixed to the surface of the fixed cross bar, and the other end is fixed to the surface of the drum bag fixed splint.

[0008] Preferably, the movement control component includes a motor and a screw rod, the motor is installed on one side of the fixed cross bar, the screw rod and the fixed cross bar are rotationally connected, and one end of the motor output shaft is fixedly connected to the screw rod.

[0009] Preferably, the extrusion assembly includes a movable cross bar, a bag extrusion fixed splint and an extrusion driving splint. The bag extrusion fixed splint and the movable cross bar are fixedly connected, and the movable cross bar and the extrusion driving splint are rotatably connected. The bag extrusion fixed splint and the extrusion driving splint are detachably connected by bolts, and the screw rod passes through the surface of the movable cross bar and is threadedly connected to the movable cross bar.

[0010] Preferably, the surface of the bag bulging fixed splint is fixedly connected with an L-shaped limit rod, and the surface of the saline bag is provided with a through hole for one end of the L-shaped limit rod to pass through. The surfaces of the bag bulging fixed splint and the bag bulging movable splint are both fixedly connected with the limit guide rod, and the two limit guide rods respectively move through the surfaces of the bag squeezing fixed splint and the bag squeezing movable splint.

[0011] Preferably, the airbag pressure measuring assembly includes a pressure measuring tube, a pressure measuring indicator ball and an airbag pressure gauge. The pressure measuring tube is fixed to the surface of the tracheal tube and is interconnected with the tracheal tube. The pressure measuring indicator ball is arranged on the surface of the pressure measuring tube. The airbag pressure gauge and the pressure measuring indicator ball are movably connected.

[0012] Preferably, the negative pressure suction component includes a first connecting tube, a disposable sputum collector, a second connecting tube and a pressure regulator. The first connecting tube is movably connected to the medical three-way tube, the first connecting tube is fixed to the surface of the disposable sputum collector, and is interconnected with the disposable sputum collector. The second connecting tube is movably connected to the pressure regulator, the second connecting tube is fixed to the surface of the disposable sputum collector, and is interconnected with the disposable sputum collector.

[0013] The working principle and advantages of the present invention are:

[0014] (1) The motor controls the rotation of the screw rod to move the extrusion assembly to squeeze the saline bag, and the saline in the saline bag is squeezed into the pipe and injected into the surface of the balloon. The motor control makes the pressure of the saline flushing controllable, which can prevent the formation of a gap between the balloon and the airway wall due to excessive pressure or even damage to the balloon, leading to lung infection in the patient, and is conducive to improving the convenience of subglottic flushing operations for medical staff.

[0015] (2) The first semicircular heating tube sleeve and the second semicircular heating tube sleeve are arranged on the third connecting tube, so that the physiological saline flowing through the first semicircular heating tube sleeve and the second semicircular heating tube sleeve in the third connecting tube can be heated, which can prevent the physiological saline from irritating the patient's airway due to the temperature difference when entering the airway, causing the patient's airway spasm such as choking and coughing. The first semicircular heating tube sleeve and the second semicircular heating tube sleeve are connected by magnetic attraction, and the inner walls are provided with friction pads, which facilitates the first semicircular heating tube sleeve and the second semicircular heating tube sleeve to be installed on or removed from the third connecting tube, and are not easy to slide.

[0016] (3) The pressure of the balloon is monitored by an airbag pressure gauge, and the flushing force is adjusted by controlling the movement of the extrusion assembly through the feedback pressure, which is beneficial to improving the use effect of the flushing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a subglottic drainage and flushing device suitable for field environments according to the present invention;

[0018] Figure 2 This is an enlarged view of point A in the diagram of a subglottic drainage and irrigation device suitable for field environments according to the present invention;

[0019] Figure 3This is a partial cross-sectional schematic diagram of a subglottic drainage and flushing device suitable for field environments according to the present invention;

[0020] Figure 4 This is a schematic structural diagram of a heating assembly of a subglottic drainage and irrigation device suitable for field environments according to the present invention;

[0021] Figure 5 This is a cross-sectional schematic diagram of a tracheal tube of a subglottic drainage and flushing device suitable for field environments according to the present invention;

[0022] The reference numerals involved in the accompanying drawings are: 1. endotracheal tube; 2. balloon; 3. pressure measuring tube; 4. pressure measuring indicator ball; 5. airbag pressure gauge; 6. drainage tube; 7. medical three-way tube; 8. first connecting tube; 9. disposable sputum collector; 10. second connecting tube; 11. pressure regulator; 12. third connecting tube; 13. first semicircular heating tube sleeve; 14. second semicircular heating tube sleeve; 15. friction pad; 16. positioning block; 17. motor; 18. drum bag fixed splint; 19. fixed cross bar; 20. screw; 21. moving cross bar; 22. extrusion bag fixed splint; 23. L-shaped limiting rod; 24. drum bag moving splint; 25. extrusion drive splint; 26. limiting guide rod; 27. saline bag. DETAILED DESCRIPTION

[0023] like Figures 1 to 5 As shown, the following is further described in detail through a specific embodiment: a subglottic drainage and flushing device suitable for outdoor environments, comprising an endotracheal tube 1, an air bag pressure measuring assembly is installed on the surface of the endotracheal tube 1, a balloon 2 is provided on the surface of the endotracheal tube 1, a drainage tube 6 is fixedly connected to the surface of the endotracheal tube 1, one end of the drainage tube 6 is movably connected to a medical three-way tube 7, one end of the medical three-way tube 7 is movably connected to a third connecting tube 12, and the other end of the medical three-way tube 7 is movably installed with a negative pressure suction assembly, the surface of the third connecting tube 12 is detachably connected to a heating assembly, one end of the third connecting tube 12 is movably connected to a physiological saline bag 27, the physiological saline bag 27 is a 20 ml bag, disposable bag for use, and no waste of physiological saline, the surface of the physiological saline bag 27 is provided with an auxiliary positioning assembly, the surface of the physiological saline bag 27 is provided with an extrusion assembly, a movement control assembly is installed between the auxiliary positioning assembly and the extrusion assembly, the surface of the third connecting tube 12 is fixedly connected to a positioning block 16, and the positioning block 16 is connected to the auxiliary positioning assembly.

[0024] Furthermore, the heating assembly includes a first semicircular heating sleeve 13, a second semicircular heating sleeve 14 and a friction pad 15. The first semicircular heating sleeve 13 and the second semicircular heating sleeve 14 are rotatably connected, and the contact surfaces between the first semicircular heating sleeve 13 and the second semicircular heating sleeve 14 are connected by magnetic attraction. The inner walls of the first semicircular heating sleeve 13 and the second semicircular heating sleeve 14 are fixedly connected with the friction pad 15. The heating assembly can heat the physiological saline to a temperature suitable for the human airway. When in a harsh external environment such as a high-altitude cold area, the constant temperature physiological saline is used. Flushing the airway with saline can reduce the patient's airway spasm and maladaptive reaction caused by cold saline, improve cleaning efficiency and increase medical operability. The auxiliary positioning component includes a fixed cross bar 19, a drum bag fixed splint 18 and a drum bag movable splint 24. The fixed cross bar 19 and the drum bag fixed splint 18 are fixedly connected, the fixed cross bar 19 and the drum bag movable splint 24 are rotatably connected, and the drum bag movable splint 24 and the drum bag fixed splint 18 are detachably connected by bolts. One end of the positioning block 16 is fixed to the surface of the fixed cross bar 19, and the other end is fixed to the surface of the drum bag fixed splint 18.

[0025] Furthermore, the mobile control component includes a motor 17 and a screw rod 20. The motor 17 is installed on one side of the fixed cross bar 19. The screw rod 20 and the fixed cross bar 19 are rotationally connected. One end of the output shaft of the motor 17 is fixedly connected to the screw rod 20. The extrusion component includes a movable cross bar 21, a fixed splint 22 for squeezing bags and a driving splint 25 for squeezing bags. The fixed splint 22 for squeezing bags and the movable cross bar 21 are fixedly connected. The movable cross bar 21 and the driving splint 25 are rotationally connected. The fixed splint 22 for squeezing bags and the driving splint 25 are detachably connected by bolts. The screw rod 20 passes through the surface of the movable cross bar 21 and is threadedly connected to the movable cross bar 21.

[0026] Furthermore, an L-shaped limit rod 23 is fixedly connected to the surface of the drum bag fixed splint 18, and a through hole is provided on the surface of the physiological saline bag 27 for one end of the L-shaped limit rod 23 to pass through. The surfaces of the drum bag fixed splint 18 and the drum bag movable splint 24 are fixedly connected to the limit guide rod 26, and the two limit guide rods 26 are movable through the surfaces of the squeezing bag fixed splint 22 and the squeezing moving splint 25 respectively. The airbag pressure measuring assembly includes a pressure measuring tube 3, a pressure measuring indicator ball 4 and an airbag pressure gauge 5. The pressure measuring tube 3 is fixed to the surface of the tracheal tube 1 and is interconnected with the tracheal tube 1. The pressure measuring indicator ball 4 is arranged at On the surface of the pressure measuring tube 3, the airbag pressure gauge 5 and the pressure indicating ball 4 are movably connected. The negative pressure suction component includes a first connecting tube 8, a disposable sputum collector 9, a second connecting tube 10 and a pressure regulator 11. The first connecting tube 8 and the medical three-way tube 7 are movably connected. The first connecting tube 8 is fixed to the surface of the disposable sputum collector 9 and is interconnected with the disposable sputum collector 9. The second connecting tube 10 and the pressure regulator 11 are movably connected. The second connecting tube 10 is fixed to the surface of the disposable sputum collector 9 and is interconnected with the disposable sputum collector 9.

[0027] The working principle and use process of the present invention are as follows: the tracheal tube 1 is placed in the patient's trachea, one end of the drainage tube 6 follows the tracheal tube 1 into the trachea, and the other end extends out of the body, and the trachea is blocked by the balloon 2, so that the gas can only enter the patient's lungs through the tracheal tube 1, and one interface of the medical three-way tube 7 is connected to the end of the drainage tube 6 extending out of the body, the second interface is connected to the third connecting tube 12, and the last interface is connected to the first connecting tube 8. The pressure indicator ball 4 can be connected to the airbag pressure gauge 5 to measure the pressure of the balloon 2, the bulging bag moving splint 24 and the squeezing bag moving splint 25 can be flipped, and the limiting guide rod 26 follows the flipping, and then the physiological saline bag 27 is placed on the bulging bag fixed splint 18 and the squeezing bag fixed splint 22. When placing, make the L-shaped limiting rod 23 pass through the physiological The through holes on the surface of the saline bag 27 are conducive to the cooperation of the L-shaped limit rod 23 with the positioning block 16, the bulging bag fixed splint 18, and the bulging bag movable splint 24 when the squeezing bag fixed splint 22 and the squeezing driving splint 25 move, so that the physiological saline bag 27 will not move, and the mouth of the physiological saline bag 27 is docked with one end of the third connecting tube 12. Then the bulging bag movable splint 24 and the squeezing driving splint 25 are rotated to make the squeezing driving splint 25 cooperate with the squeezing bag fixed splint 22 to clamp the physiological saline bag 27, and the bulging bag fixed splint 18 and the bulging bag movable splint 24 cooperate to clamp the physiological saline bag 27. Then, the squeezing bag fixed splint 22 and the squeezing driving splint 25, the bulging bag fixed splint 18 and the bulging bag movable splint 24 are fixed by bolts, and by starting the motor 17, the screw rod 20 is driven to rotate, and the rotation of the screw rod 20 drives the movable cross bar 21 to The fixed crossbar 19 moves in the direction of the fixed crossbar 19, and the squeezing bag fixed splint 22 and the squeezing driving splint 25 follow the moving crossbar 21 to move, and the physiological saline in the physiological saline bag 27 is squeezed into the third connecting tube 12, and flows from the third connecting tube 12 through the medical three-way tube 7, and flows from the medical three-way tube 7 through the drainage tube 6, and comes out from one end of the drainage tube 6 to rinse the surface of the balloon 2. The negative pressure of the disposable sputum collector 9 can be controlled by the pressure regulator 11 through the second connecting tube 10, and the retained material on the balloon 2 is sucked from the drainage tube 6 through the medical three-way tube 7, and then into the disposable sputum collector 9 through the first connecting tube 8. The communication between the first connecting tube 8, the third connecting tube 12, and the drainage tube 6 is controlled by rotating the knob on the medical three-way tube 7. The medical three-way tube 7 is controlled to control the first connecting tube 8. The three-way connecting tube 12 is connected to the drainage tube 6, the first connecting tube 8 is closed, and the surface of the balloon 2 is flushed. The medical three-way tube 7 is rotated to control the connection between the first connecting tube 8 and the drainage tube 6, and the third connecting tube 12 is closed to attract the retained matter on the surface of the balloon 2. The first semicircular heating tube sleeve 13 and the second semicircular heating tube sleeve 14 can be sleeved on the third connecting tube 12, and the physiological saline flowing through the first semicircular heating tube sleeve 13 and the second semicircular heating tube sleeve 14 in the third connecting tube 12 can be heated, which can prevent the physiological saline from entering the airway and irritating the patient's airway due to the temperature difference, causing the patient's airway spasm. The friction pad 15 can prevent the first semicircular heating tube sleeve 13 and the second semicircular heating tube sleeve 14 from sliding easily when installed on the third connecting tube 12.

[0028] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the guidance of this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A subglottic drainage and flushing device suitable for outdoor environments, comprising a tracheal tube (1), characterized in that: The surface of the tracheal tube (1) is equipped with an airbag pressure measuring assembly, the surface of the tracheal tube (1) is provided with a balloon (2), the surface of the tracheal tube (1) is fixedly connected with a drainage tube (6), one end of the drainage tube (6) is movably connected with a medical three-way tube (7), one end of the medical three-way tube (7) is movably connected with a third connecting tube (12), the other end of the medical three-way tube (7) is movably equipped with a negative pressure suction assembly, the surface of the third connecting tube (12) is detachably connected with a heating assembly, one end of the third connecting tube (12) is movably connected with a physiological saline bag (27), the surface of the physiological saline bag (27) is provided with an auxiliary positioning assembly, the surface of the physiological saline bag (27) is provided with an extrusion assembly, a movement control assembly is installed between the auxiliary positioning assembly and the extrusion assembly, the surface of the third connecting tube (12) is fixedly connected with a positioning block (16), and the positioning block (16) is connected to the auxiliary positioning assembly; The auxiliary positioning assembly comprises a fixed crossbar (19), a drum bag fixed splint (18) and a drum bag movable splint (24); the fixed crossbar (19) and the drum bag fixed splint (18) are fixedly connected, the fixed crossbar (19) and the drum bag movable splint (24) are rotatably connected, the drum bag movable splint (24) and the drum bag fixed splint (18) are detachably connected by bolts, one end of the positioning block (16) is fixed to the surface of the fixed crossbar (19), and the other end is fixed to the surface of the drum bag fixed splint (18); The movement control assembly comprises a motor (17) and a screw rod (20), wherein the motor (17) is mounted on one side of a fixed crossbar (19), the screw rod (20) and the fixed crossbar (19) are rotationally connected, and one end of the output shaft of the motor (17) is fixedly connected to the screw rod (20); The extrusion assembly comprises a movable cross bar (21), a bag extrusion fixed clamping plate (22) and an extrusion driving clamping plate (25); the bag extrusion fixed clamping plate (22) and the movable cross bar (21) are fixedly connected, the movable cross bar (21) and the extrusion driving clamping plate (25) are rotatably connected, the bag extrusion fixed clamping plate (22) and the extrusion driving clamping plate (25) are detachably connected by bolts, and the screw rod (20) passes through the surface of the movable cross bar (21) and is threadedly connected to the movable cross bar (21); The surface of the bag-bulging fixed splint (18) is fixedly connected with an L-shaped limiting rod (23), and the surface of the saline bag (27) is provided with a through hole for one end of the L-shaped limiting rod (23) to pass through. The surfaces of the bag-bulging fixed splint (18) and the bag-bulging movable splint (24) are both fixedly connected with limiting guide rods (26), and the two limiting guide rods (26) are respectively movable through the surfaces of the bag-squeezing fixed splint (22) and the bag-squeezing movable splint (25); The airbag pressure measuring assembly comprises a pressure measuring tube (3), a pressure measuring indicator ball (4) and an airbag pressure gauge (5); the pressure measuring tube (3) is fixed to the surface of the tracheal tube (1) and is in communication with the tracheal tube (1); the pressure measuring indicator ball (4) is arranged on the surface of the pressure measuring tube (3); the airbag pressure gauge (5) and the pressure measuring indicator ball (4) are movably connected; the pressure feedback from the airbag pressure gauge (5) controls the motor (17), forming a pressure feedback control system.

2. A subglottic drainage and flushing device suitable for outdoor environments according to claim 1, characterized in that: The heating assembly comprises a first semicircular heating tube sleeve (13), a second semicircular heating tube sleeve (14) and a friction pad (15); the first semicircular heating tube sleeve (13) and the second semicircular heating tube sleeve (14) are rotatably connected, and the contact surfaces between the first semicircular heating tube sleeve (13) and the second semicircular heating tube sleeve (14) are connected by magnetic attraction; the inner walls of the first semicircular heating tube sleeve (13) and the second semicircular heating tube sleeve (14) are both fixedly connected with the friction pad (15).

3. The subglottic drainage and flushing device suitable for outdoor environments according to claim 1, characterized in that: The negative pressure suction component comprises a first connecting tube (8), a disposable sputum collector (9), a second connecting tube (10) and a pressure regulator (11); the first connecting tube (8) is movably connected to the medical three-way tube (7); the first connecting tube (8) is fixed to the surface of the disposable sputum collector (9) and is in communication with the disposable sputum collector (9); the second connecting tube (10) is movably connected to the pressure regulator (11); the second connecting tube (10) is fixed to the surface of the disposable sputum collector (9) and is in communication with the disposable sputum collector (9).

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