CN108066832B

CN108066832B - Drainage device for pleural effusion and exhaust

Info

Publication number: CN108066832B
Application number: CN201711306534.7A
Authority: CN
Inventors: 王大娟; 王爱萍; 徐维亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-11
Filing date: 2017-12-11
Publication date: 2020-09-01
Anticipated expiration: 2037-12-11
Also published as: CN108066832A

Abstract

The invention discloses a drainage device for pleural effusion and exhaust, which mainly comprises a puncture needle body, a puncture fixing device, a puncture positioning device, a drainage device, a transfusion device and a propeller, wherein the puncture positioning device adjusts the puncture position of the puncture needle body through ultrasonic waves to improve the positioning precision, the puncture needle body is fixed through the fixing device, a three-way valve and a speed regulating valve are adjusted during drainage to realize the interchange of the pleural effusion or the exhaust process, a rebound device consisting of a fixing plate I, a fixing plate II and a spring is driven by the propeller during puncture to quickly puncture and pull out a needle core, and the transfusion device can clean and feed the pleural cavity to realize the seamless connection of the effusion and the exhaust interchange process. In a word, the invention has the advantages of reasonable design, accurate positioning, safety, reliability, small irritation to patients and convenient operation.

Description

Drainage device for pleural effusion and exhaust

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a drainage device for pleural effusion and exhaust.

Background

The normal person has 3 ~ 15ml liquid in the pleural cavity, plays lubricated effect when respiratory motion, but the hydrops volume in the pleural cavity is unchangeable. Even for normal people, 500-1000 ml of liquid is formed and absorbed every 24 hours. The pleural cavity fluid is absorbed from the vein end of capillary blood vessels, the rest fluid is recovered to blood by a lymphatic system, the filtration and the absorption are in dynamic balance, if the dynamic balance is damaged due to systemic or local lesion, the pleural cavity fluid is formed too fast or absorbed too slowly, pleural effusion is generated clinically, the time for compressing the lung or the effusion is long, fibrin in the pleural effusion is easy to organize and generates two layers of pleural adhesions, so that the lung respiratory function is influenced, at the moment, the effusion is pumped out by puncturing, and when a patient has defects on the chest wall or the surface of the lung, the lung function of the patient is poor or a large number of pneumothorax are generated, particularly, when tension pneumothorax is generated, effective closed drainage treatment of the pneumothorax must be carried out quickly. Under most circumstances, pneumothorax patient need carry out the closed drainage of continuation thorax, under a few circumstances, if fail to make the pleura breach healing after the drainage of water-sealed bottle, the lung still can not be restituted, can add behind the drainage tube and use negative pressure device to carry out the drainage. The thoracocentesis is a common and convenient diagnosis and treatment method in clinical work, when pleural effusion puncture drainage or pneumothorax drainage is performed, the pleural effusion or gas is continuously drained, lung tissues expand, and the needle point possibly damages the alveolus to trigger iatrogenic pneumothorax, and clinically, the heart or the lung tissues are damaged by the needle point, so that the related drainage can be usually ended in advance. Only solitary hydrops or gaseous drainage in to the thorax among the prior art, whole process infectivity is high to after the drainage, when needs wash or the medication to the extraction position, puncture it again, can not in time carry out effectual drug treatment to the extraction position, aggravate the patient's state of an illness, patient's healing degree time extension is unfavorable for the health to resume. Therefore, a drainage device which has the advantages of reasonable design, accurate positioning, safety, reliability, small irritation to patients and convenient operation is urgently needed.

Disclosure of Invention

In order to solve the technical problems, the invention provides a drainage device for pleural effusion and exhaust.

The technical scheme of the invention is as follows: the utility model provides a drainage device for pleural effusion and exhaust, mainly includes puncture needle body, puncture fixing device, puncture positioner, drainage device, infusion set, propeller, the puncture needle body includes pjncture needle, resilient means is located the pjncture needle is at the back, and pjncture needle and resilient means are fixed knot structure, puncture fixing device includes fixed block and support frame, the fixed block is located puncture needle body front end both sides, support frame quantity has six, and evenly distributed is on the fixed block of both sides, puncture positioner includes display and ultrasonic transducer, ultrasonic transducer is located puncture fixing device at the back, the display is electric connection with ultrasonic transducer, drainage device is located the pjncture needle below, and drainage device includes a drainage tube, medical velocity of flow governing valve, negative pressure generator, three-way valve, One end of the drainage tube is connected with the lower end of the puncture needle body, the other end of the drainage tube is connected to the negative pressure bag and the collection bottle through the three-way valve, the medical flow speed regulating valve and the negative pressure generator are arranged between the puncture needle body and the three-way valve on the drainage tube from top to bottom respectively, the inlet of the water-sealed bottle is connected with the outlet of the collection bottle through a conduit, the conduit inserted into the water-sealed bottle is lower than the height of water in the water-sealed bottle, the infusion device comprises a second drainage tube, a medical flow speed control valve, a second three-way valve, a cleaning fluid storage bottle and a drug delivery injector, one end of the drainage tube is connected with the upper end of the puncture needle body, the other end of the drainage tube is connected with the cleaning fluid storage bottle and the drug delivery injector through the second three-way valve, the medical flow speed control valve is arranged between the puncture needle body and the second three-way valve on, the utility model discloses a puncture needle body, including the pole push rod, the pole push rod is connected with the pole, the propeller is fixed at puncture needle body end, and the propeller includes micro motor, battery, microcontroller, motor push rod, the pole push rod is fixed connection with the puncture needle body, micro motor and motor push rod end-to-end connection, microcontroller and battery are located the propeller left and right sides, mutual electric connection between battery, miniature control room, the micro motor.

Furthermore, the tail ends of six support frames of the puncture fixing device are provided with rubber suckers, so that the puncture needle body can be fixed in position.

Furthermore, the opening that puncture needle body surface was equipped with upwards with the spout that ultrasonic transducer corresponds, ultrasonic transducer's slider and the spout on the puncture needle body are sliding connection, and ultrasonic transducer's angle and puncture needle body become 30 ~ 35 contained angles, be equipped with locking means on the slider, can conveniently observe the exact position of focus, the position that the adjustment puncture needle body pierced.

Furthermore, the puncture needle comprises a first sleeve, a second sleeve and a needle core, the tail end of the first sleeve is connected with the rebounding device, the second sleeve is arranged on the outer surface of the first sleeve, the first sleeve can slide in the second sleeve, a first fixing plate, a second fixing plate and three springs are arranged in the rebounding device and are respectively positioned between the first fixing plate and the second fixing plate, the first fixing plate and the second fixing plate are connected through the springs, one spring in the middle is positioned at the center of the first fixing plate and the second fixing plate, the other two springs are respectively distributed on two sides at equal intervals, the first fixing plate and the second fixing plate are sealed with the inner wall of the rebounding device, the first fixing plate and the inner wall of the rebounding device slide left and right, the puncture depth of the needle core can be adjusted by moving the first fixing plate, the needle core is positioned at the center shaft of the first sleeve, and the needle, and run through fixed plate one, fixed plate two and middle spring, motor push rod and nook closing member are threaded connection, can puncture fast and extract, prevent to puncture the in-process and cause unnecessary damage to lung tissue.

Further, the upper right corner of propeller surface is equipped with solenoid valve trigger switch and pilot lamp, can puncture the nook closing member fast and extract at the puncture in-process, whether the pilot lamp can observe solenoid valve trigger switch and normally work, and the right side of propeller is close to the battery is equipped with the mouth that charges, charges the battery, prevents to bring the not enough of the depth of puncture because of the electric power is not enough.

Further, the front end outer wall of the sleeve pipe I of pjncture needle is equipped with the drainage groove, can prevent to spill over at drainage in-process hydrops with increase exhaust in-process velocity of flow, establish the drainage groove into the skew shape and assist the drainage, can prevent that haplopore from blockking up and causing the injury to thoracic cavity tissue when the drainage.

A working method of the drainage device for pleural effusion and exhaust comprises the following steps:

the method comprises the following steps: firstly, carrying out exhaust treatment on the negative pressure bag to exhaust air in the negative pressure bag to form a negative pressure device which is arranged at a port below the first three-way valve;

step two: aligning the puncture needle body to a position to be punctured, adjusting an included angle between the ultrasonic probe and the puncture needle body to be 30-40 degrees through a sliding groove which is formed in the outer surface of the puncture needle body and is upward corresponding to the ultrasonic probe, pushing the ultrasonic probe to detect the puncture position of the thoracic cavity, and observing an image on a display to determine the puncture position;

step three: the puncture needle body is fixed through the puncture positioning device, the position of the first fixing plate on the rebound device is adjusted, the electromagnetic valve trigger switch of the propeller is opened, the motor push rod moves forwards to push the needle core, and the needle core rebounds quickly through the rebound device consisting of the first fixing plate, the second fixing plate and the spring, so that the needle core is prevented from damaging the thoracic cavity;

step four: when effusion drainage is carried out in the thoracic cavity, the first three-way valve is adjusted to the negative pressure bag, the drainage device is opened to drain the effusion into the negative pressure bag through the first sleeve, the oblique drainage groove and the first drainage tube, the flow of the effusion can be adjusted by adjusting the medical flow speed adjusting valve during drainage, when the pressure in the negative pressure bag reaches a certain value, the negative pressure generator is opened to drain the effusion, and the negative pressure absorption force of the negative pressure generator is 50-200 ml;

step five: when the air needs to be exhausted in the thoracic cavity, the interior of the thoracic cavity is changed from negative pressure to positive pressure and is connected with a collecting bottle by adjusting a three-way valve, a drainage device is opened to drain the air to the collecting bottle through a first sleeve, an oblique drainage groove and a first drainage tube, the collecting bottle collects a small amount of liquid mixed in the air, the air flows to a water-sealed bottle through a conduit, the flow rate of the air is adjusted by adjusting a medical flow rate speed adjusting valve by observing the amount of bubbles in the water-sealed bottle, and a negative pressure generator is opened to drain the air when the pressure in the thoracic cavity reaches a certain value;

step six: hydrops or gaseous drainage in the thorax have been accomplished, open infusion set, when carrying out the thorax and wash, put through the washing liquid storage bottle through rotating No. two three-way valves, wash the thorax after the drainage is accomplished with 300 ~ 400ml washing liquid, when needing the medication, adjust No. two three-way valves and put through the syringe of dosing, through absorbing 3 ~ 5ml medicine, readjust No. two three-way valves and put through the washing liquid storage bottle and absorb 10 ~ 20 ml's washing liquid and mix, send mixed liquid into the thorax through adjusting the medical velocity of flow control valve on No. two honeycomb ducts, after the infusion is accomplished, take out the puncture needle body and carry out wound hemostasis processing.

Compared with the prior art, the invention has the beneficial effects that: the drainage device for pleural effusion and exhaust can extract gas and effusion in a pleural cavity, simultaneously cleans and treats the pleural cavity after extraction is finished, accurately punctures a focus through the matching of the fixing device and the ultrasonic positioning device, uses the electromagnetic valve to trigger the switch in the drainage process, and enables the needle core to rapidly penetrate and rebound through the rebound device consisting of the fixing plate I, the fixing plate II and the spring so as to avoid the damage of the needle core to thoracic tissues, wherein the seamless connection of the gas and the effusion extraction and treatment is realized through the adjustment of the two three-way valves, and the infection is avoided in the whole process. In a word, the invention has the advantages of reasonable design, accurate positioning, safety, reliability, small irritation to patients and convenient operation.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is an enlarged view of the needle of the present invention;

fig. 3 is a schematic view of the internal structure of the propeller of the present invention.

Wherein, 1-puncture needle body, 2-puncture fixing device, 3-puncture positioning device, 4-drainage device, 5-transfusion device, 6-propeller, 1 a-puncture needle, 1 b-rebound device, 101-cannula I, 102-cannula II, 103-chute, 104-slide block, 105-oblique drainage groove, 106-needle core, 107 fixing plate II, 108-fixing plate I, 110-spring, 201-fixing block, 202-supporting frame, 301-ultrasonic probe, 302-display, 401-drainage tube I, 402-medical flow speed regulating valve, 403-negative pressure generator, 404-three-way valve I, 405-negative pressure bag, 406-collecting bottle, 407-water-sealed bottle, 501-two drainage tubes, 502-medical flow rate control valve, 503-second three-way valve, 504-administration injector, 505-cleaning solution storage bottle, 602-motor push rod, 603-indicator light, 604-electromagnetic valve trigger switch, 605-battery, 606-charging port, 607-micro motor, 608-micro controller.

Detailed Description

For the understanding of the present invention, the following description is further explained with reference to the accompanying drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.

As shown in fig. 1 and 3, a drainage device for pleural effusion and exhaust, which mainly comprises a puncture needle body 1, a puncture fixing device 2, a puncture positioning device 3, a drainage device 4, a transfusion device 5 and a propeller 6, wherein the puncture needle body 1 comprises a puncture needle 1a and a rebounding device 1b, the rebounding device 1b is positioned behind the puncture needle 1a, the puncture needle 1a and the rebounding device 1b are of a fixed structure, the puncture fixing device 2 comprises a fixed block 201 and a support frame 202, the fixed block 201 is positioned at two sides of the front end of the puncture needle body 1, the number of the support frames 202 is six, and are evenly distributed on the fixed block 201 at two sides, rubber suction cups are arranged at the tail ends of the six support frames 202, so as to fix the position of the puncture needle body, the puncture positioning device 3 comprises a display 302 and an ultrasonic probe 301, the ultrasonic probe 301 is positioned behind the puncture fixing device 2, a chute 103 with, the slide block 104 of the ultrasonic probe 301 is connected with the slide groove 103 in a sliding way, the slide block 104 is provided with a locking component, the display 302 is electrically connected with the ultrasonic probe 301, the drainage device 4 is positioned below the puncture needle body 1, the drainage device 4 comprises a drainage tube 401, a medical flow speed regulating valve 402, a negative pressure generator 403, a three-way valve 404, a negative pressure bag 405, a collection bottle 406 and a water-sealed bottle 407, one end of the drainage tube 401 is connected with the lower end of the puncture needle body 1, the other end of the drainage tube is respectively connected with the negative pressure bag 405 and the collection bottle 406 through the three-way valve 404, the medical flow speed regulating valve 402 and the negative pressure generator 403 are respectively arranged between the puncture needle body 1 and the three-way valve 404 on the drainage tube 401 from top to bottom, the inlet of the water-sealed bottle 407 is connected with the outlet of the collection bottle through a conduit, the conduit inserted into the water-sealed bottle 407 is lower than the water in the water-sealed bottle 407, A medical flow rate control valve 502, a second three-way valve 503, a cleaning solution storage bottle 505 and a drug delivery injector 504, one end of a second drainage tube 501 is connected with the upper end of the puncture needle body 1, the other end is respectively connected with the cleaning solution storage bottle 505 and the drug delivery injector 504 through the second three-way valve 503, the medical flow rate control valve 502 is arranged between the puncture needle body 1 and the second three-way valve 503 on the second drainage tube 501, a propeller 6 is fixed at the tail end of the puncture needle body 1, the propeller 6 comprises a micro motor 607, a battery 605, a micro controller 608 and a motor push rod 602, the propeller 6 is fixedly connected with the puncture needle body 1, the micro motor 607 is connected with the tail end of the motor push rod 602, the micro controller 608 and the battery 605 are arranged at the left side and the right side of the propeller 6, an electromagnetic valve triggering development 604 and an indicator light 603 are arranged at, whether the electromagnetic valve trigger switch 604 works normally can be seen by observing the indicator light 603, a charging port 606 is formed in the battery 605 to charge the battery 605, the situation that the puncture depth is insufficient due to insufficient power is prevented, and the battery 605, the micro control room 608 and the micro motor 607 are electrically connected with one another.

As shown in fig. 1 and 2, the puncture needle body 1 comprises a puncture needle 1a and a rebound device 1b, the puncture needle 1a comprises a first sleeve 101, a second sleeve 102 and a needle core 106, the rebound device 1b is arranged at one end of the tail end of the first sleeve 101, the second sleeve 102 is provided with the outer surface of the first sleeve 101, the first sleeve 101 can slide in the second sleeve 102, the outer wall of the front end of the first sleeve 101 is provided with an inclined drainage groove 105, the two side end faces of the inclined drainage groove 105 are wrapped by medical colloid, a first fixing plate 108, a second fixing plate 107 and three springs 110 are arranged in the rebound device 1b and are respectively positioned between the first fixing plate 108 and the second fixing plate 107, the first fixing plate 108 and the second fixing plate 107 are connected through the springs 110, one spring 110 in the middle is positioned at the center of the first fixing plate 108 and the second fixing plate 107, the other two springs 110 are respectively and equidistantly distributed at the two sides, the first fixing, the first fixing plate 108 is slidably connected with the inner wall of the rebounding device 1b, the needle core 106 is located at the middle shaft position of the first sleeve 101, the needle core 106 extends to the motor push rod 602 along the direction of the first sleeve 101 and penetrates through the first fixing plate 108, the second fixing plate 107 and the middle spring 110, and the motor push rod 602 is in threaded connection with the needle core 106.

A method of operating a drainage device for pleural effusion and ventilation, comprising the steps of:

the method comprises the following steps: firstly, carrying out exhaust treatment on the negative pressure bag 405 to exhaust air inside the negative pressure bag to form a negative pressure device, and arranging the negative pressure device at a port below the first three-way valve 404;

step two: aligning the puncture needle body 1 to a position to be punctured, adjusting an included angle between the ultrasonic probe 301 and the puncture needle body 1 to be 30-40 degrees through a chute 103 which is arranged on the outer surface of the puncture needle body 1 and has an opening facing upwards and corresponds to the ultrasonic probe 301, pushing the ultrasonic probe 301 to perform puncture position detection on the thoracic cavity, and observing an image on a display 302 to determine the puncture position;

step three: the puncture needle body 1 is fixed through the puncture positioning device 3, the position of the first fixing plate 108 on the rebound device 1b is adjusted, the electromagnetic valve trigger switch 604 of the propeller 6 is opened, the motor push rod 602 moves forwards to push the needle core 106, the needle core 106 rebounds quickly through the rebound device consisting of the first fixing plate 108, the second fixing plate 107 and the spring 110, and the thoracic cavity is prevented from being damaged by the needle core 106;

step four: when effusion drainage is performed in the thoracic cavity, the first three-way valve 404 is adjusted to the negative pressure bag 405, the drainage device 4 is opened to drain the effusion to the negative pressure bag 405 through the first sleeve, the inclined drainage groove 105 and the first drainage tube 401, the flow of the effusion can be adjusted by adjusting the medical flow speed regulating valve 402 during drainage, when the pressure in the negative pressure bag 405 reaches a certain value, the negative pressure generator 403 is opened to drain the effusion, and the negative pressure absorption force of the negative pressure generator 403 is 50-200 ml;

step five: when the air needs to be exhausted in the thoracic cavity, the interior of the thoracic cavity is changed from negative pressure to positive pressure, the thoracic cavity is connected with a collecting bottle 406 by adjusting a three-way valve 404, the drainage device 4 is opened to drain the air to the collecting bottle 406 through a sleeve I, an oblique drainage groove and a drainage tube 401, the collecting bottle 406 collects a small amount of liquid mixed in the air, the air flows to a water-sealed bottle 407 through a catheter, the flow rate of the air is adjusted by adjusting a medical flow rate speed adjusting valve 402 by observing the amount of bubbles in the water-sealed bottle 407, and when the pressure in the thoracic cavity reaches a certain value, a negative pressure generator 403 is opened to drain the air;

step six: after hydrops or gaseous drainage in the thorax, open infusion set 5, when carrying out the thorax and wash, through rotating No. two three-way valve 503 switch-on washing liquid storage bottle 505, wash the thorax after the drainage is accomplished with 300 ~ 400ml washing liquid, when needing medication, adjust No. two three-way valve 503 switch-on syringe 504 of dosing, through absorbing 3 ~ 5ml medicine, No. two three-way valve 503 is adjusted again and is put through washing liquid storage bottle 505 and absorb 10 ~ 20 ml's washing liquid and mix, send the mixed liquid into the thorax through adjusting medical velocity of flow control valve 502 on No. two honeycomb ducts 501, after the infusion is accomplished, take out puncture needle body 1 and carry out wound hemostasis.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a puncture drainage device for thoracic cavity hydrops and exhaust, its characterized in that mainly includes puncture needle body (1), puncture fixing device (2), puncture positioner (3), drainage device (4), infusion set (5), propeller (6), puncture needle body (1) includes pjncture needle (1a), resilient means (1b) is located pjncture needle (1a) back, and pjncture needle (1a) and resilient means (1b) are fixed knot and construct, puncture fixing device (2) include fixed block (201) and support frame (202), fixed block (201) are located puncture needle body (1) front end both sides, support frame (202) quantity has six, and evenly distributed is on both sides fixed block (201), puncture positioner (3) include display (302) and ultrasonic transducer (301), the ultrasonic probe (301) is positioned behind the puncture fixing device (2), the display (302) is electrically connected with the ultrasonic probe (301), the drainage device (4) is positioned below the puncture needle body (1), the drainage device (4) comprises a drainage tube (401), a medical flow speed regulating valve (402), a negative pressure generator (403), a three-way valve (404), a negative pressure bag (405), a collecting bottle (406) and a water-sealed bottle (407), one end of the drainage tube (401) is connected with the lower end of the puncture needle body (1), the other end of the drainage tube is respectively connected to the negative pressure bag (405) and the collecting bottle (406) through the three-way valve (404), the medical flow speed regulating valve (402) and the negative pressure generator (403) are respectively arranged on the drainage tube (401) from top to bottom between the puncture needle body (1) and the three-way valve (404), the inlet of the water-sealed bottle (407) is connected with the outlet of the collecting bottle (406) through a guide pipe, the guide pipe inserted into the water-sealed bottle (407) is lower than the water level in the water-sealed bottle (407), the infusion device (5) comprises a second drainage pipe (501), a medical flow rate control valve (502), a second three-way valve (503), a cleaning solution storage bottle (505) and a drug delivery injector (504), one end of the second drainage pipe (501) is connected with the upper end of the puncture needle body (1), the other end of the second drainage pipe is connected with the cleaning solution storage bottle (505) and the drug delivery injector (504) through the second three-way valve (503), the medical flow rate control valve (502) is arranged between the puncture needle body (1) and the second three-way valve (503) on the second drainage pipe (501), the propeller (6) is fixed at the tail end of the puncture needle body (1), and the propeller (6) comprises a micro motor (607, The puncture needle body (1) is fixedly connected with the propeller (6), the micro motor (607) is connected with the tail end of the motor push rod (602), the micro controller (608) and the battery (605) are positioned at the left side and the right side of the propeller (6), and the battery (605), the micro controller (608) and the micro motor (607) are electrically connected with each other;

rubber suckers are arranged at the tail ends of six support frames (202) of the puncture fixing device (2);

the outer surface of the puncture needle body (1) is provided with a sliding groove (103) with an upward opening corresponding to the ultrasonic probe (301), a sliding block (104) of the ultrasonic probe (301) is in sliding connection with the sliding groove (103), and a locking component is arranged on the sliding block (104);

the puncture needle (1a) comprises a first sleeve (101), a second sleeve (102) and a needle core (106), the tail end of the first sleeve (101) is connected with the rebound device (1b), the second sleeve (102) is arranged on the outer surface of the first sleeve (101), the first sleeve (101) can slide in the second sleeve (102), three fixing plates (108), two fixing plates (107) and three springs (110) are arranged in the rebound device (1b) and are respectively positioned between the first fixing plate (108) and the second fixing plate (107), the first fixing plate (108) and the second fixing plate (107) are connected through the springs (110), one spring (110) in the middle is positioned at the central position of the first fixing plate (108) and the second fixing plate (107), the other two springs (110) are respectively and equidistantly distributed at two sides, and the first fixing plate (108) and the second fixing plate (107) are sealed with the inner wall of the rebound device (1b), and the first fixing plate (108) slides left and right in the inner wall of the rebound device (1b), the needle core (106) is positioned at the middle shaft position of the first sleeve (101), the needle core (106) extends to the motor push rod (602) along the direction of the first sleeve (101) and penetrates through the first fixing plate (108), the second fixing plate (107) and the middle spring (110), and the motor push rod (602) is in threaded connection with the needle core (106).

2. The puncture drainage device for thoracic cavity pleural effusion and exhaust of claim 1, wherein the solenoid valve trigger switch (604) and the indicator light (603) are arranged on the upper right of the outer surface of the propeller (6), and the charging port (606) is arranged on the right side of the propeller (6) near the battery (605).

3. A puncture drainage device for thoracic cavity medical pleural effusion and exhaust according to claim 1, characterized in that the outer wall of the front end of the first sleeve (101) of the puncture needle (1a) is provided with an oblique drainage groove (105), and both sides of the oblique drainage groove (105) are wrapped by medical colloid.