Automatic aspirator for pneumothorax

Abstract

The application belongs to the technical field of medical apparatus and instruments, and particularly relates to an automatic air extractor for pneumothorax, which comprises a base and a puncture needle arranged above the base, the puncture needle is detachably connected with a drainage tube, the inside of the base is hollow, the inner wall of the base is provided with a control mainboard, and the automatic air extractor further comprises: a suction cylinder which is integrally arranged on the top of the base and detachably connected with the drainage tube; and a suction unit which is arranged in the inside of the base and connected with the suction cylinder. The automatic air extractor can automatically control the air extraction in the thoracic cavity of a patient, reduce the influence of slow lung tissue rebound recovery speed of the patient, effectively avoid the influence of pressure virtual value on the air extraction effect of pneumothorax, and avoid secondary damage to lung tissue of the patient caused by excessive one-time air extraction through the interval automatic air extraction mode. Meanwhile, the discharged gas can be synchronously sterilized.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to an automatic air pump for pneumothorax. Background Art

[0002] Pneumothorax is a common disease. The accumulation of air in the chest cavity will compress the lung tissue and affect respiratory function. The pneumothorax evacuator can extract the gas in the chest cavity, reduce the pressure in the chest cavity, allow the lung tissue to re-expand, and restore normal respiratory function. It plays a key role in the treatment of pneumothorax patients in clinical medicine, alleviating pain for patients and promoting recovery.

[0003] Currently, when extracting gas from the chest cavity, it is generally necessary to pre-select a suction point, complete disinfection, etc., insert a puncture needle into the chest cavity, and then connect an external negative pressure suction device to the puncture needle to extract the gas from the chest cavity through the negative pressure suction device. For example, patent publication number CN114618034A discloses an automatic vacuum pump for pneumothorax.

[0004] In order to improve the effect of suctioning the gas inside the chest cavity, some suction devices are also equipped with a pressure monitoring component. When the pressure monitoring component detects that the pressure has reached the set value, the suction of gas will stop. However, due to different physical conditions of patients, the rebound recovery energy of lung tissue of different patients is different. For example, the elasticity of lung tissue of young people is usually better. After the pneumothorax gas is extracted, the lung tissue can rebound quickly and powerfully with its own good elasticity. However, the lung tissue of the elderly may have decreased elasticity due to factors such as aging, long-term smoking, and chronic lung diseases, and the rebound energy is relatively weak. Therefore, for patients with poor lung tissue rebound and reduction performance, the lung tissue has not fully rebounded after the gas is extracted, that is, the volume of air inside the chest cavity has not decreased rapidly, resulting in low air pressure inside the chest cavity, which leads to deviations in air pressure monitoring and affects the medical staff's judgment of the amount of gas extracted. Secondly, if a large amount of air is extracted at one time, the pressure in the chest cavity will drop rapidly after a large amount of gas is quickly extracted, and the pressure difference with the surrounding tissues and blood vessels will increase, further increasing the possibility of secondary damage to the lung tissue. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic vacuum pump for pneumothorax in view of the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions: an automatic vacuum pump for pneumothorax, comprising a base and a puncture needle disposed above the base, the puncture needle being detachably connected to a drainage tube, the interior of the base being hollow, and a control mainboard being mounted on the inner wall of the base, and further comprising:

[0007] The suction cylinder is integrally formed and arranged on the top of the base, and the drainage tube is detachably connected to the suction cylinder;

[0008] A suction unit is installed inside the base, and the suction end of the suction unit is connected to the suction unit;

[0009] a pressure monitoring unit, mounted on a side wall of the suction cylinder and connected to the interior of the suction cylinder;

[0010] A trigger unit is disposed inside the base. A driving mechanism is installed inside the base. The control mainboard controls the driving mechanism to operate according to the electrical signal output by the pressure monitoring unit. The driving end of the driving mechanism is connected to the trigger unit.

[0011] A disinfection unit is arranged inside the base;

[0012] The heat exchange unit is arranged on the outside of the base and communicated with the inside of the base.

[0013] Preferably, the suction unit includes a suction pump fixedly installed inside the base, and the suction end of the suction pump is connected to the suction cylinder, a mounting ring is installed inside the suction cylinder, and a normally open solenoid valve is installed inside the mounting ring, an air inlet hole is opened on the side wall of the suction cylinder between the mounting ring and the suction pump, and a normally closed solenoid valve is installed inside the air inlet hole, and the suction pump, normally open solenoid valve and normally closed solenoid valve are all electrically connected to the control main board.

[0014] Preferably, the pressure monitoring unit includes a mounting cover that is detachably mounted on the outer side wall of the suction cylinder, and the side wall of the suction cylinder is provided with a connecting hole connected to the mounting cover, an elastic membrane is fixedly installed inside the mounting cover, and a strain type pressure monitoring component is installed on the mounting cover at a position on the side of the elastic membrane away from the connecting hole, and the monitoring end of the strain type pressure monitoring component is bonded to the side wall of the elastic membrane, the strain type pressure monitoring component is electrically connected to the control main board, and an air pressure hole is left on the side wall of the mounting cover.

[0015] Preferably, the trigger unit includes a slot plate movably arranged inside the base, and an ultraviolet lamp board is fixedly installed inside the slot plate, a plurality of evenly arranged circular holes are opened at the bottom of the slot plate, and a focusing lens is installed inside each circular hole, an insulating seat is fixedly installed on the inner bottom of the base, and a plurality of evenly arranged thermistor strips are installed on the top of the insulating seat, and an insulating thermal conductive sleeve is fixedly sleeved on the outer side wall of each thermistor strip, the slot plate is arranged above the insulating seat, the side wall of the insulating seat is opened with a strip hole, and a plurality of electromagnetic switches are fixedly installed inside the strip hole, and each thermistor strip is electrically connected to the corresponding electromagnetic switch through the control main board, and after the control main board receives the electrical signal of at least one electromagnetic switch, it controls the operation of the suction pump, the normally open electromagnetic valve and the normally closed electromagnetic valve, and the ultraviolet lamp board is electrically connected to the control main board.

[0016] Preferably, the driving mechanism includes a support plate fixedly mounted on the inner bottom of the base, and an electromagnetic push rod is fixedly plugged into the side wall of the support plate, the telescopic end of the electromagnetic push rod is fixedly connected to the side wall of the slot plate, and the strain type pressure monitoring component is electrically connected to the electromagnetic push rod through the control main board.

[0017] Preferably, the disinfection unit includes a guide plate fixedly installed inside the base, the guide plate is arranged below the air outlet end of the suction pump, and the guide plate is arranged above the slot plate, a mesh frame is installed between the guide plate and the base, and an adsorption filler is placed inside the mesh frame, and the slot plate is installed with an air blocking component.

[0018] Preferably, the heat exchange unit includes an insulation hose fixedly plugged into the base, and the insulation hose is connected to the strip hole. A heat conducting plate is provided on the outside of the base, and a serpentine air vent is provided inside the heat conducting plate, and the serpentine air vent is fixedly connected to the insulation hose. A detachable adhesive sheet is bonded to the side wall of the heat conducting plate.

[0019] Preferably, the air blocking assembly includes a movable bar slidably arranged inside the base, and the movable bar is fixedly connected to the side wall of the slot plate, a flexible stretch film is fixedly provided between the side wall of the movable bar and the inner wall of the base, and the flexible stretch film is arranged below the screen frame.

[0020] Compared with the existing technology, the advantages of an automatic vacuum pump for pneumothorax are:

[0021] 1. Through the mutual cooperation of the provided base, puncture needle, drainage tube, control main board, suction cylinder and suction unit, the excess air inside the patient's chest cavity can be extracted, and through the mutual cooperation of the provided pressure monitoring unit, trigger unit and driving mechanism, the suction work inside the patient's chest cavity can be automatically controlled according to the pressure changes inside the patient's chest cavity, thereby reducing the impact of the slow rebound recovery speed of the patient's lung tissue and effectively avoiding the influence of the false pressure value on the pneumothorax suction effect. At the same time, the intermittent automatic suction method can also avoid secondary damage to the patient's lung tissue caused by excessive suction at one time.

[0022] 2. The disinfection unit can cooperate with the light source of the trigger unit to disinfect and sterilize the gas discharged from the chest cavity, avoiding the direct discharge of untreated air into the surrounding air.

[0023] 3. Through the set heat exchange unit, the heat generated by the trigger unit can be used to assist in appropriate heating of the patient's chest suction position, thereby minimizing the impact of human body heat loss due to gas flow and improving the patient's comfort during suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a schematic structural diagram of an automatic vacuum pump for pneumothorax provided by the present invention;

[0025] Figure 2 This is a schematic cross-sectional view of an automatic vacuum pump for pneumothorax provided by the present invention;

[0026] Figure 3 This is a schematic structural diagram of a trigger unit of an automatic vacuum pump for pneumothorax provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the distribution of the condensing lenses of an automatic vacuum pump for pneumothorax provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the top view of the connection structure between the air baffle assembly and the slot plate of an automatic air extractor for pneumothorax provided by the present invention;

[0029] Figure 6 The present invention provides an automatic vacuum pump for pneumothorax. Figure 3 A magnified view of the structure of part A.

[0030] In the figure: 1 base, 2 puncture needle, 3 drainage tube, 4 control main board, 5 suction cylinder, 6 suction unit, 61 suction pump, 62 mounting ring, 63 normally open solenoid valve, 64 normally closed solenoid valve, 7 pressure monitoring unit, 71 mounting cover, 72 connecting hole, 73 elastic membrane, 74 strain type pressure monitoring component, 75 air pressure hole, 8 trigger unit, 81 slot plate, 82 ultraviolet lamp board, 83 focusing lens, 84 insulating seat, 85 thermistor strip, 86 insulating thermal conductive sleeve, 87 strip hole, 88 electromagnetic switch, 9 driving mechanism, 91 support plate, 92 electromagnetic push rod, 10 disinfection unit, 101 guide plate, 102 mesh frame, 103 adsorption filler, 11 heat exchange unit, 111 insulation hose, 112 thermal conductive sheet, 113 serpentine vent, 114 adhesive sheet, 12 air blocking component, 121 movable strip, 122 flexible stretch film. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] like Figures 1-6As shown, an automatic vacuum pump for pneumothorax includes a base 1 and a puncture needle 2 arranged above the base 1. The puncture needle 2 is detachably connected to a drainage tube 3. The interior of the base 1 is hollow, and a control mainboard 4 is installed on the inner wall of the base 1. It also includes: a suction cylinder 5, which is integrally formed and arranged on the top of the base 1, and the drainage tube 3 is detachably connected to the suction cylinder 5. A suction unit 6 is installed inside the base 1, and the suction end of the suction unit 6 is connected to the suction unit 6. 6 includes a suction pump 61 fixedly installed inside the base 1, and the suction end of the suction pump 61 is connected to the suction cylinder 5, a mounting ring 62 is installed inside the suction cylinder 5, and a normally open solenoid valve 63 is installed inside the mounting ring 62, an air inlet hole is opened on the side wall of the suction cylinder 5 between the mounting ring 62 and the suction pump 61, and a normally closed solenoid valve 64 is installed inside the air inlet hole, the suction pump 61, the normally open solenoid valve 63 and the normally closed solenoid valve 64 are all electrically connected to the control main board 4.

[0033] The pressure monitoring unit 7 is installed on the side wall of the suction cylinder 5 and is connected with the interior of the suction cylinder 5. The pressure monitoring unit 7 includes a mounting cover 71 that is detachably mounted on the outer wall of the suction cylinder 5, and the side wall of the suction cylinder 5 is provided with a connecting hole 72 connected with the mounting cover 71. An elastic membrane 73 is fixedly installed inside the mounting cover 71. A strain type pressure monitoring assembly 74 is installed on the mounting cover 71 at a position on the side of the elastic membrane 73 away from the connecting hole 72, and the monitoring end of the strain type pressure monitoring assembly 74 is bonded to the side wall of the elastic membrane 73. The strain type pressure monitoring assembly 74 is electrically connected to the control main board 4. An air pressure hole 75 is left on the side wall of the mounting cover 71. The strain type pressure monitoring assembly 74 can change its own resistance synchronously based on the deformation of the strain gauge, thereby changing the electrical signal strength in the connection circuit synchronously.

[0034] The trigger unit 8 is arranged inside the base 1. The trigger unit 8 includes a slot plate 81 movably arranged inside the base 1, and an ultraviolet lamp board 82 is fixedly installed inside the slot plate 81. A plurality of evenly arranged circular holes are opened at the bottom of the slot plate 81, and a focusing lens 83 is installed inside each circular hole. An insulating seat 84 is fixedly installed on the inner bottom of the base 1, and a plurality of evenly arranged thermistor strips 85 are installed on the top of the insulating seat 84, and an insulating heat-conducting sleeve 86 is fixedly sleeved on the outer wall of each thermistor strip 85. The slot plate 81 is arranged on the insulating seat 81. 4, a strip hole 87 is opened on the side wall of the insulating seat 84, and a plurality of electromagnetic switches 88 are fixedly installed inside the strip hole 87, and each thermistor strip 85 is electrically connected to the corresponding electromagnetic switch 88 through the control main board 4. After the control main board 4 receives the electrical signal of at least one electromagnetic switch 88, it controls the suction pump 61, the normally open electromagnetic valve 63 and the normally closed electromagnetic valve 64 to work, and the ultraviolet lamp board 82 is electrically connected to the control main board 4. The focusing lens 83 can focus the ultraviolet light, thereby heating the insulating thermal conductive sleeve 86.

[0035] A driving mechanism 9 is installed inside the base 1, and the control main board 4 controls the operation of the driving mechanism 9 according to the electrical signal output by the pressure monitoring unit 7. The driving end of the driving mechanism 9 is connected to the trigger unit 8. The driving mechanism 9 includes a support plate 91 fixedly installed on the inner bottom of the base 1, and the side wall of the support plate 91 is fixedly plugged with an electromagnetic push rod 92. The telescopic end of the electromagnetic push rod 92 is fixedly connected to the side wall of the slot plate 81. The strain type pressure monitoring component 74 is electrically connected to the electromagnetic push rod 92 through the control main board 4. When the current passed through the electromagnetic push rod 92 is different, the magnetic thrust generated by the electromagnetic component inside it is different, so that the distance extended by its telescopic end is different.

[0036] The disinfection unit 10 is arranged inside the base 1. The disinfection unit 10 includes a guide plate 101 fixedly installed inside the base 1. The guide plate 101 is arranged below the air outlet end of the suction pump 61, and the guide plate 101 is arranged above the slot plate 81. A mesh frame 102 is installed between the guide plate 101 and the base 1, and an adsorption filler 103 is placed inside the mesh frame 102. The slot plate 81 is installed with an air blocking component 12. A material change port corresponding to the position of the mesh frame 102 is reserved at the top of the base 1. A sealing cover is installed inside the material change port for replacing the adsorption filler 103.

[0037] The heat exchange unit 11 is arranged on the outside of the base 1 and is connected with the inside of the base 1. The heat exchange unit 11 includes an insulation hose 111 fixedly plugged into the base 1, and the insulation hose 111 is connected with the strip hole 87. A heat conducting plate 112 is provided on the outside of the base 1, and a serpentine air vent 113 is opened inside the heat conducting plate 112, and the serpentine air vent 113 is fixedly connected to the insulation hose 111. A detachable adhesive sheet 114 is adhered to the side wall of the heat conducting plate 112, and the heat conducting plate 112 can be adhered to the patient's chest position through the adhesive sheet 114. The adhesive sheet 114 is replaceable.

[0038] The air-blocking assembly 12 includes a movable bar 121 slidably arranged inside the base 1, and the movable bar 121 is fixedly connected to the side wall of the slot plate 81. A flexible stretch membrane 122 is fixedly provided between the side wall of the movable bar 121 and the inner wall of the base 1, and the flexible stretch membrane 122 is arranged below the mesh frame 102. When the slot plate 81 moves, it can drive the movable bar 121 to move synchronously, thereby driving the flexible stretch membrane 122 to stretch. When the air flow flows here, it can make the air flow pass directly above the ultraviolet lamp panel 82, so that the air flow is discharged after being disinfected by ultraviolet rays.

[0039] The operating principle of the present invention is now described as follows: the patient is made to lie on the bed, and the operation process is explained to the patient to obtain the patient's cooperation. Subsequently, the puncture point is determined at the patient's chest position (for example, the 2nd intercostal space on the midclavicular line of the patient's side or the 4th-5th intercostal space on the anterior axillary line), and then iodine is applied to the puncture point for disinfection. Local infiltration anesthesia is then performed at the puncture point. The puncture needle 2 is then connected to the suction catheter and slowly inserted into the chest cavity along the anesthesia site. When the resistance suddenly disappears, it indicates that the puncture needle 2 has entered the chest cavity. At this time, the drainage tube 3 is connected to the puncture needle 2, and the drainage tube 3 is connected to the suction cylinder 5. Subsequently, the base 1 is placed on one side of the bed, and the control board 4 is connected to the external power socket, and then the control board 4 is started (a button is left on the side wall of the base 1, and the control board 4 can be operated by the button);

[0040] At the beginning, since the mounting cover 71 is connected to the inside of the patient's chest cavity through the connecting hole 72, the suction cylinder 5, the drainage tube 3 and the puncture needle 2, the elastic membrane 73 is subjected to a large pressure, so the strain gauge of the strain type pressure monitoring component 74 will be subjected to a large deformation, resulting in a high resistance of the elastic membrane 73. Therefore, the current flowing into the electromagnetic push rod 92 is small at this time, so that the displacement distance of the slot plate 81 is small. After the control main board 4 is started, the suction pump 61 is controlled to be energized and work. At this time, the suction pump 61 can extract the air inside the patient's chest cavity through the suction cylinder 5, the drainage tube 3 and the puncture needle 2, and the air pressure inside the chest cavity is reduced. Therefore, the inside of the mounting cover 71 is The air pressure in the chest cavity decreases synchronously. At this time, the resistance of the strain gauge pressure monitoring component 74 decreases, thereby gradually increasing the current flowing into the electromagnetic push rod 92. The control board 4 controls the normally open electromagnetic valve 63 and the normally closed electromagnetic valve 64 to energize and operate once every 5 seconds. At this time, since the normally open electromagnetic valve 63 is energized and closed, the air in the patient's chest cavity will not continue to be pumped out, and the external air will be pumped in through the air inlet by the suction pump 61. After the control board is started, the ultraviolet lamp board 82 will be started. The light emitted by the ultraviolet lamp board 82 is focused by each focusing lens 83 into a high-energy light spot, thereby being able to heat the insulating thermal conductive card slot;

[0041] When the normally open solenoid valve 63 and the normally closed solenoid valve 64 are not energized, the air inside the patient's chest cavity is extracted, causing the air pressure inside the patient's chest cavity to change. Therefore, when the normally open solenoid valve 63 and the normally closed solenoid valve 64 are energized, the electromagnetic push rod 92 pushes the moving position of the slot plate 81 to change. Since the normally open solenoid valve 63 is energized and closed, the air pressure inside the patient's chest cavity will not change significantly. Only the air pressure inside the chest cavity will change slightly under the patient's own breathing action. Therefore, when the normally open solenoid valve 63 is energized, the change in the intensity of the electrical signal output by the strain gauge pressure monitoring component 74 is small. At this time, the change in the current flowing into the electromagnetic push rod 92 is small, so the slot The plate 81 always moves within a certain range of the current position, so the focused light will always irradiate the insulating heat-conducting sleeve 86 at this position, so that the temperature of the insulating heat-conducting sleeve 86 at this position continues to rise. When the temperature of the insulating heat-conducting sleeve 86 reaches the threshold value (for example, 55°C ± 2°C), the thermistor strip 85 on the same side will reduce its own resistance because the temperature reaches the threshold value. At this time, the current flowing into the corresponding electromagnetic switch 88 is large enough, so that the electromagnetic switch 88 is energized and closed. After the control main board 4 receives the closing electrical signal of the electromagnetic switch 88, it will immediately control the normally open electromagnetic valve 63 and the normally closed electromagnetic valve 64 to cut off the power. At this time, the suction The pump 61 will continue to pump air into the patient's chest cavity until 5 seconds later, when the normally open solenoid valve 63 and the normally closed solenoid valve 64 are powered off again. When the control board 4 receives the closing electrical signal of the electromagnetic switch 88 next time, the control board 4 will control the normally open solenoid valve 63 and the normally closed solenoid valve 64 to power off again, and repeat the above operation until the air in the patient's chest cavity is fully discharged. The strain type pressure monitoring component 74 will output an electrical signal to the control board 4 (for example, when the air pressure in the patient's chest cavity is between -2 and -5 cmH2O, the strain type pressure monitoring component 74 detects that the pressure has reached the set threshold. At this time, the strain type pressure monitoring component 74 will output an electrical signal to the control board 4). 4 outputs an electrical signal). Secondly, when the air in the patient's chest cavity is fully expelled, the position of the slot plate 81 changes slightly in synchronization with the slight change in the breathing pressure. Therefore, the control mainboard 4 receives the closing electrical signal of the electromagnetic switch 88 at the corresponding position. At this time, the control mainboard 4 controls the entire device to stop working and reminds the medical staff of the end of air extraction through its own alarm module (particularly, after the control mainboard 4 receives the closing electrical signal of the electromagnetic switch 88 once, the control mainboard 4 controls the electromagnetic switch 88 to remain disconnected from the connection circuit of the corresponding thermistor strip 85 in the subsequent operation to prevent the electromagnetic switch 88 from outputting repeated electrical signals).

[0042] Among them, for young people with good physical fitness, since the rebound recovery performance of the lung tissue of such patients is good, their lung tissue usually starts to rebound and recover synchronously when pumping air, that is, after 5 seconds of pumping, the position of the groove plate 81 will not change significantly, so that the electromagnetic switch 88 there will be quickly triggered, allowing the suction pump 61 to continue the next suction work, which can avoid damage to the lung tissue caused by excessive pumping and minimize time waste. For elderly people with poor physical fitness, since the rebound recovery performance of the lung tissue of such patients is poor, their lung tissue cannot rebound and recover quickly when pumping air. Therefore, when After the 5 seconds of suction, the lung tissue will slowly rebound and recover. As the lung tissue slowly rebounds, the air pressure inside the chest cavity will gradually rise to a certain value. At this time, the position of the slot plate 81 will change synchronously due to the change in pressure value. Therefore, the ultraviolet lamp board 82 will not continue to irradiate the insulating thermal conductive sleeve 86 at a certain position until the lung tissue rebounds and recovers. The air pressure inside the chest cavity will not change significantly. At this time, the electromagnetic switch 88 at this position will be magnetically closed, and then the next suction work will be carried out. Therefore, the suction frequency can be automatically adjusted based on the rebound recovery of the patient's lung tissue to avoid excessive suction and reduce time waste.

[0043] At the same time, the gas sucked by the suction pump 61 is transported to the interior of the base 1. Under the action of the guide plate 101, the gas passes through the adsorption filler 103 inside the mesh frame 102. The adsorption filler 103 can absorb impurities such as accumulated liquid and moisture that may be carried in the airflow, and the ultraviolet light board 82 can disinfect and sterilize the airflow, thereby preventing the gas from being directly discharged and affecting the indoor environment.

[0044] Among them, the airflow passing through the ultraviolet lamp board 82 will enter the interior of the thermal insulation hose 111 through the strip hole 87, and then be discharged through the serpentine vent 113 of the heat conducting sheet 112. When the airflow passes through the interior of the strip hole 87 and the surface of each insulating heat conducting sleeve 86, it can take away part of the heat at the insulating heat conducting sleeve 86 (when the light emitted by the ultraviolet lamp board 82 continuously irradiates the insulating heat conducting sleeve 86 at a certain position, due to the limited heat exchange capacity of the airflow, it will not cause the insulating heat conducting sleeve 86 to fail to continue to heat up to 55℃±2℃, ensuring the electrical insulation. The magnetic switch 88 can be triggered normally), and when the airflow after heat exchange passes through the heat conductive sheet 112, it can transfer heat to the heat conductive sheet 112, causing the heat conductive sheet 112 to heat up. Before puncture, the heat conductive sheet 112 is adhered to the patient's chest around the puncture point through the adhesive sheet 114. When the heat conductive sheet 112 heats up, it can properly keep the area around the patient's puncture point warm, thereby reducing the body temperature drop caused by the flow of air in the chest cavity during suction, helping to improve the patient's comfort during suction, and at the same time, promoting the expansion and contraction of the patient's lung tissue, thereby helping the lung tissue to rebound and recover;

[0045] Among them, the puncture needle 2 and the drainage tube 3 are disposable items, and the suction cylinder 5, the base 1, etc. need to be disinfected and sterilized after use before they can be reused.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic vacuum pump for pneumothorax, comprising a base (1) and a puncture needle (2) arranged above the base (1), wherein the puncture needle (2) is detachably connected to a drainage tube (3), the interior of the base (1) is hollow, and a control mainboard (4) is installed on the inner wall of the base (1), characterized in that: Also includes: A suction cylinder (5) is integrally formed and arranged on the top of the base (1), and the drainage tube (3) is detachably connected to the suction cylinder (5); A suction unit (6) is installed inside the base (1), and the suction end of the suction unit (6) is connected to the suction cylinder (5); A pressure monitoring unit (7) is mounted on the side wall of the suction cylinder (5) and is in communication with the interior of the suction cylinder (5); A trigger unit (8) is arranged inside the base (1), a driving mechanism (9) is installed inside the base (1), and the control main board (4) controls the driving mechanism (9) to operate according to the electrical signal output by the pressure monitoring unit (7), and the driving end of the driving mechanism (9) is connected to the trigger unit (8); A disinfection unit (10) is arranged inside the base (1); A heat exchange unit (11) is arranged outside the base (1) and communicates with the interior of the base (1); The trigger unit (8) includes a slot plate (81) movably arranged inside the base (1), and an ultraviolet lamp board (82) is fixedly installed inside the slot plate (81), a plurality of evenly arranged circular holes are opened at the bottom of the slot plate (81), and a focusing lens (83) is installed inside each circular hole, an insulating seat (84) is fixedly installed on the inner bottom of the base (1), and a plurality of evenly arranged thermistor strips (85) are installed on the top of the insulating seat (84), and an insulating heat-conducting sleeve (86) is fixedly sleeved on the outer wall of each thermistor strip (85), the slot plate (81) is arranged above the insulating seat (84), a strip hole (87) is opened on the side wall of the insulating seat (84), and a plurality of electromagnetic switches (88) are fixedly installed inside the strip hole (87), and each thermistor strip (85) is electrically connected to the corresponding electromagnetic switch (88) through the control main board (4), and the ultraviolet lamp board (82) is electrically connected to the control main board (4).

2. The automatic vacuum pump for pneumothorax according to claim 1, characterized in that: The suction unit (6) includes a suction pump (61) fixedly mounted inside the base (1), and the suction end of the suction pump (61) is connected to the suction cylinder (5), a mounting ring (62) is mounted inside the suction cylinder (5), and a normally open solenoid valve (63) is mounted inside the mounting ring (62), an air inlet hole is opened on the side wall of the suction cylinder (5) between the mounting ring (62) and the suction pump (61), and a normally closed solenoid valve (64) is mounted inside the air inlet hole, the suction pump (61), the normally open solenoid valve (63) and the normally closed solenoid valve (64) are all electrically connected to the control mainboard (4), and after receiving an electrical signal from at least one electromagnetic switch (88), the control mainboard (4) controls the suction pump (61), the normally open solenoid valve (63) and the normally closed solenoid valve (64) to operate.

3. The automatic vacuum pump for pneumothorax according to claim 2, characterized in that: The pressure monitoring unit (7) includes a mounting cover (71) that is detachably mounted on the outer wall of the suction cylinder (5), and a connecting hole (72) that is connected to the mounting cover (71) is provided on the side wall of the suction cylinder (5). An elastic membrane (73) is fixedly mounted inside the mounting cover (71), and a strain type pressure monitoring component (74) is mounted on the mounting cover (71) at a position on the side of the elastic membrane (73) away from the connecting hole (72), and a monitoring end of the strain type pressure monitoring component (74) is bonded to the side wall of the elastic membrane (73), and the strain type pressure monitoring component (74) is electrically connected to the control main board (4). An air pressure hole (75) is left on the side wall of the mounting cover (71).

4. The automatic vacuum pump for pneumothorax according to claim 3, characterized in that: The driving mechanism (9) includes a support plate (91) fixedly mounted on the inner bottom of the base (1), and an electromagnetic push rod (92) is fixedly plugged into the side wall of the support plate (91), the telescopic end of the electromagnetic push rod (92) is fixedly connected to the side wall of the slot plate (81), and the strain type pressure monitoring component (74) is electrically connected to the electromagnetic push rod (92) via the control main board (4).

5. The automatic vacuum pump for pneumothorax according to claim 2, characterized in that: The disinfection unit (10) includes a guide plate (101) fixedly mounted inside the base (1), the guide plate (101) being arranged below the air outlet of the suction pump (61), and the guide plate (101) being arranged above the slot plate (81), a mesh frame (102) being mounted between the guide plate (101) and the base (1), and an adsorption filler (103) being placed inside the mesh frame (102), and an air blocking component (12) being mounted on the slot plate (81).

6. The automatic vacuum pump for pneumothorax according to claim 1, characterized in that: The heat exchange unit (11) includes a heat-insulating hose (111) fixedly plugged into the base (1), and the heat-insulating hose (111) is connected to the strip hole (87). A heat-conducting sheet (112) is provided on the outside of the base (1), and a serpentine vent (113) is provided inside the heat-conducting sheet (112). The serpentine vent (113) is fixedly connected to the heat-insulating hose (111), and a detachable adhesive sheet (114) is adhered to the side wall of the heat-conducting sheet (112).

7. The automatic vacuum pump for pneumothorax according to claim 5, characterized in that: The air blocking assembly (12) comprises a movable bar (121) slidably arranged inside the base (1), and the movable bar (121) is fixedly connected to the side wall of the slot plate (81), and a flexible stretch film (122) is fixedly arranged between the side wall of the movable bar (121) and the inner wall of the base (1), and the flexible stretch film (122) is arranged below the screen frame (102).

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