A thoracic surgery puncture drainage device

Abstract

The application discloses a thoracic surgery puncture drainage device, relates to the technical field of medical puncture drainage, and comprises a drainage needle, a drainage tube communicated with the drainage needle, and a negative pressure component communicated with the drainage tube. The negative pressure component comprises an inflatable rubber tube and a shell. An adjusting assembly matched with the inflatable rubber tube is installed on the shell, and the adjusting assembly is used for driving the inflatable rubber tube to stretch and deform. The thoracic surgery puncture drainage device can adaptively drain liquid according to the fluctuation frequency and fluctuation degree of the thoracic cavity when draining the thoracic cavity effusion, effectively reduces the damage to the thoracic cavity, can pressurize and dredge when the drainage tube is slightly blocked, can backwash and dredge when the drainage tube is highly blocked, realizes the integration of dredging and drainage, avoids the backwash and dredging air from entering the drainage device to cause drainage infection, has higher safety, and is more convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical puncture drainage, in particular to a thoracic surgery puncture drainage device. BACKGROUND

[0002] Puncture drainage is a technique commonly used in clinical treatment, which mainly operates under local anesthesia or general anesthesia through puncture means to drain the body fluid, pus or gas, and the drainage device is one of the devices required for puncture drainage.

[0003] At present, puncture drainage tube blockage is a common problem, which may cause poor drainage effect and complications. The traditional drainage tube is easily blocked by fibrous tissue, blood clots and foreign matter during use, thereby affecting the drainage effect and being not conducive to improving the surgical effect, and also having a great influence on the recovery speed of the patient.

[0004] Therefore, the thoracic surgery anti-blocking puncture drainage device with publication number CN221555837U includes a drainage mechanism and a filtering mechanism. The drainage mechanism includes a filtering drainage tube and a transmission drainage tube. One end of the filtering drainage tube is fixedly connected with a transfusion connector. The other end of the filtering drainage tube is fixedly connected with the filtering mechanism. One end of the transmission drainage tube is fixedly connected with a drainage bag. The other end of the transmission drainage tube is fixedly connected with the filtering mechanism. The filtering mechanism includes a filtering shell. The filtering shell is provided with a filtering assembly. The filtering mechanism is provided with a monitoring assembly.

[0005] The above-mentioned drainage device effectively filters fibrous tissue, blood clots and foreign matter in the drainage liquid through the filtering mechanism, can effectively prevent the occurrence of blockage problems, and avoid the blockage of the drainage tube. However, the drainage mechanism and the filtering drainage tube still have a probability of blockage during specific use. The drainage tube is connected with a one-way tube. After blockage, the one-way tube is replaced to backwash and dredge the drainage tube and the drainage needle. The replacement operation is complicated. When the replacement is performed, external air will enter the drainage tube, which increases the probability of wound infection. In addition, the existing and above-mentioned drainage devices both use a collection bag to collect fluid. The negative pressure of the collection bag is constant, and the probability of blockage is large.

[0006] Therefore, a new thoracic surgery puncture drainage device can be used to solve the problems in the prior art. SUMMARY

[0007] The purpose of the present application is to solve the problems in the prior art and provide a thoracic surgery puncture drainage device.

[0008] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0009] A thoracic surgery puncture drainage device comprises a drainage needle and a drainage tube connected to the drainage needle, and also comprises a negative pressure component connected to the drainage tube;

[0010] The negative pressure component includes an expansion rubber tube and a shell. The shell is equipped with an adjustment component that cooperates with the expansion rubber tube. The adjustment component is used to drive the expansion rubber tube to expand and contract. The expansion and contraction of the expansion rubber tube realize variable pressure and constant pressure extraction of pleural effusion. The upper part of the expansion rubber tube is fixedly connected to a drainage syringe. The drainage syringe and the drainage tube are connected through a third control component. The bottom of the expansion rubber tube is fixedly connected to a drainage bucket. The drainage bucket is fixedly connected to a connecting pipe. The drainage bucket is equipped with a collection part and a backwash part.

[0011] The collecting part includes a collecting bottle, which is connected to the drainage bucket through a second control component; the backwashing part includes a cleaning bottle, which is fixed with a connector, and the connector is connected to the connecting pipe through a first control component.

[0012] Preferably, the adjustment component includes a negative pressure cover fixedly mounted inside the outer shell, an upper driving ring and a lower driving ring are rotatably mounted on the negative pressure cover, the upper driving ring and the lower driving ring are fixedly connected by a connecting ring, a plurality of push grooves are provided on the upper driving ring and the lower driving ring, a plurality of patches are fixedly mounted on the side wall of the expansion rubber tube, a cross bar is fixedly mounted on each of the patches, and two rotating rods that cooperate with the push grooves on the corresponding upper driving ring and lower driving ring are rotatably mounted on each of the cross bars, and a driving mechanism that cooperates with the upper driving ring is installed on the negative pressure cover.

[0013] Preferably, the driving mechanism includes a driving motor fixedly mounted on the negative pressure hood, a shaft rod is rotatably mounted on the negative pressure hood, the shaft rod and the driving end of the driving motor are connected through a crawler unit, a gear is fixedly mounted on the shaft rod, and a gear ring meshing with the gear is fixedly mounted on the upper driving ring.

[0014] Preferably, the third control component includes a first shell, both ends of which are fixedly connected to the drainage syringe and the drainage tube respectively, a first blocking ball is installed in the first shell through a first pressing mechanism, the diameter of the first blocking ball is larger than the diameter of the upper opening of the first shell, a backwash hole is provided on the first blocking ball, a one-way mechanism cooperating with the backwash hole is installed on the first blocking ball, and a first locking mechanism cooperating with the first blocking ball is installed on the first shell.

[0015] Preferably, the first pressing mechanism includes a plurality of first fixing frames fixedly mounted inside the first shell, each of the first fixing frames is fixedly mounted with a first elastic telescopic rod, and each of the first elastic telescopic rods is fixedly connected to the first blocking ball.

[0016] Preferably, the one-way mechanism includes a plurality of second elastic telescopic rods fixedly mounted in the backwash hole, and a sealing disk matched with the backwash hole is fixedly mounted on the telescopic ends of the plurality of second elastic telescopic rods.

[0017] Preferably, the first locking mechanism includes a first rotating ring installed on the outside of the first shell through a threaded groove, a plurality of first sliding grooves are opened on the side wall of the first shell, a first push rod matching the first blocking ball is slidably installed in each of the first sliding grooves, a first sealing ring is slidably installed on the outside of the first shell, the first sealing ring and the plurality of first push rods are fixedly connected, and the first rotating ring and the first sealing ring are rotatably connected.

[0018] Preferably, the first control component includes a second shell, the two ends of which are respectively connected to the drainage bucket and the collecting bottle, a second sealing ball is installed in the second shell through a second pressing mechanism, the diameter of the second sealing ball is larger than the diameter of the upper port of the second shell, and a second locking mechanism that cooperates with the second sealing ball is installed on the second shell.

[0019] Preferably, the second pressing mechanism includes a plurality of second fixing frames fixedly mounted on the inner wall of the second shell, each of the second fixing frames is fixedly mounted with a third elastic telescopic rod, and the telescopic end of each third elastic telescopic rod is fixedly connected to the second blocking ball.

[0020] Preferably, the second locking mechanism includes a second rotating ring threadably mounted on the outside of the second shell, a second sealing ring rotatably mounted on the second rotating ring, the second sealing ring and the second shell are slidingly connected, a plurality of second push rods cooperating with the second sealing balls are fixedly mounted on the second sealing ring, each of the second push rods passes through the second shell and extends into the interior of the second shell, and a plurality of grooves cooperating with the corresponding second push rods are opened on the side wall of the second shell.

[0021] Compared with the existing technology, the advantages of the present invention are:

[0022] 1. When draining pleural effusion, this puncture drainage device drives the expansion rubber tube to expand and contract by setting an adjustment component to simulate the rise and fall of chest breathing. It can automatically adjust the negative pressure according to the internal pressure of the chest cavity, with better adaptability. It can also enhance the negative pressure when a slight blockage occurs, which is used for pressurized dredging and can effectively reduce the probability of blockage.

[0023] 2、The puncture drainage device in the present application can change the expansion speed of the rubber tube by setting the rotating speed of the driving motor in the driving mechanism when draining the pleural effusion, so as to adjust the negative pressure, and can adjust the expansion frequency of the rubber tube by changing the reversing speed of the driving motor, so as to match the respiratory frequency of the chest cavity and avoid the damage of the chest cavity caused by excessive negative pressure.

[0024] 3、The puncture drainage device in the present application can change the expansion speed of the rubber tube by setting the rotating speed of the driving motor in the driving mechanism when draining the pleural effusion, so as to adjust the negative pressure, and can adjust the expansion frequency of the rubber tube by changing the reversing speed of the driving motor, so as to match the respiratory frequency of the chest cavity and avoid the damage of the chest cavity caused by excessive negative pressure.

[0025] In summary, the puncture drainage device in the present application can adaptively drain the pleural effusion according to the fluctuation frequency and degree of the chest cavity, effectively reduce the damage to the chest cavity, and can increase the pressure for unblocking when the blockage is slight, and can backwash and unblock when the blockage is high, so as to realize the integration of unblocking and drainage, avoid the air entering the drainage device during backwashing and unblocking, and have higher safety and more convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0027] Figure 1 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure;

[0028] Figure 2 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure; Figure 1 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure;

[0029] Figure 3 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure; Figure 2 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure;

[0030] Figure 4 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure; Figure 3 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure;

[0031] Figure 5 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure; Figure 4 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure;

[0032] Figure 6 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure; Figure 5 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure;

[0033] Figure 7 A structure schematic diagram of a thoracic surgery puncture drainage device according to the present application is shown in the figure; Figure 6Detailed schematic diagram of the three-dimensional structure along the AA section;

[0034] Figure 8 for Figure 4 A schematic diagram of the enlarged structure of the third control component;

[0035] Figure 9 for Figure 8 Detailed schematic drawing of the plan structure along one of the angles;

[0036] Figure 10 for Figure 9 Detailed schematic diagram of the three-dimensional structure along the BB section;

[0037] Figure 11 for Figure 10 Detailed schematic diagram of the structure after removing the first sealing ring and the first rotating ring and rotating them to a certain angle;

[0038] Figure 12 for Figure 11 A schematic detailed diagram of the planar structure of the first blocking ball, the first fixing frame and the first elastic telescopic rod along one angle;

[0039] Figure 13 for Figure 12 Detailed schematic diagram of the three-dimensional structure along the CC section;

[0040] Figure 14 for Figure 13 The enlarged structural schematic detail diagram of the middle D part;

[0041] Figure 15 for Figure 4 A schematic diagram of the enlarged structure of the second control component;

[0042] Figure 16 for Figure 15 Detailed schematic drawing of the plan structure along one of the angles;

[0043] Figure 17 for Figure 16 Detailed schematic diagram of the three-dimensional structure along the EE section;

[0044] Figure 18 for Figure 2 A detailed diagram of the enlarged structure of the medium negative pressure hood, drive mechanism, and adjustment assembly;

[0045] Figure 19 for Figure 18 Detailed schematic diagram of the structure after removing the connecting ring;

[0046] Figure 20 for Figure 19 Detailed schematic diagram of the structure after removing the negative pressure cover and rotating it to a certain angle;

[0047] Figure 21for Figure 20 Detailed schematic diagram of the exploded structure after removing the drive mechanism.

[0048] In the figure: 1 drainage needle, 2 drainage tube, 3 housing, 4 cleaning bottle, 5 collecting bottle, 6 negative pressure cover, 7 driving mechanism, 8 adjustment component, 9 first control component, 10 second control component, 11 third control component, 12 expansion rubber tube, 13 connector, 14 connecting pipe, 15 drainage bucket, 16 drainage syringe, 17 first housing, 18 first sealing ring, 19 first rotating ring, 20 first blocking ball, 21 first fixing frame, 22 first elastic telescopic rod, 23 The first push rod, 24 the first sliding groove, 25 the threaded groove, 26 the sealing disk, 27 the backwash hole, 28 the second elastic telescopic rod, 29 the second sealing ball, 30 the second shell, 31 the second sealing ring, 32 the second rotating ring, 33 the second fixed frame, 34 the third elastic telescopic rod, 35 the second push rod, 36 the upper driving ring, 37 the lower driving ring, 38 the connecting ring, 39 the driving motor, 40 the crawler unit, 41 the gear, 42 the gear ring, 43 the rotating rod, 44 the pushing groove. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] Example 1: Reference Figure 1-Figure 7 、 Figures 18-21 A thoracic surgical puncture drainage device comprises a drainage needle 1 and a drainage tube 2 connected to the drainage needle 1, and further comprises a negative pressure component connected to the drainage tube 2;

[0051] The space inside the chest cavity will compress and expand with breathing, so its internal pressure is in a changing state. In order to maintain the pressure balance in the chest cavity, using constant pressure negative pressure drainage will cause certain damage to the chest cavity. Variable pressure drainage is required to protect the chest cavity.

[0052] During drainage, the drainage needle 1 is inserted into the location of the pleural effusion. The negative pressure generated by the negative pressure component drains the effusion in the pleural cavity through the drainage needle 1 into the drainage tube 2, and then the effusion is discharged into the negative pressure component through the drainage tube 2 for collection.

[0053] The negative pressure component includes an expansion rubber tube 12 and an outer shell 3. An adjustment component 8 that cooperates with the expansion rubber tube 12 is installed on the outer shell 3. The adjustment component 8 is used to drive the expansion rubber tube 12 to expand and contract. The expansion and contraction of the expansion rubber tube 12 is used to achieve variable pressure and constant pressure extraction of pleural effusion.

[0054] Constant pressure extraction is suitable for non-pleural effusion drainage, and variable pressure is suitable for effusion drainage in the pleural cavity and other variable pressure areas.

[0055] By setting up the adjustment component 8 to drive the expansion rubber tube 12 to expand and contract, the chest breathing rise and fall can be simulated. The negative pressure can be automatically adjusted according to the internal pressure of the chest cavity, with better adaptability. In addition, the negative pressure can be enhanced when a slight blockage occurs, which is used for pressurization and dredging, and can effectively reduce the probability of blockage.

[0056] The adjustment component 8 includes a negative pressure cover 6 fixedly mounted inside the outer shell 3, and an upper driving ring 36 and a lower driving ring 37 are rotatably mounted on the negative pressure cover 6. The upper driving ring 36 and the lower driving ring 37 are fixedly connected by a connecting ring 38. A plurality of push grooves 44 are provided on the upper driving ring 36 and the lower driving ring 37. A plurality of patches are fixedly mounted on the side wall of the expansion rubber tube 12, and a cross bar is fixedly mounted on each patch. Two rotating rods 43 that cooperate with the push grooves 44 on the corresponding upper driving ring 36 and the lower driving ring 37 are rotatably mounted on each cross bar. A driving mechanism 7 that cooperates with the upper driving ring 36 is installed on the negative pressure cover 6.

[0057] The rotation of the upper driving ring 36 will drive the lower driving ring 37 to rotate along with the upper driving ring 36 through the connecting ring 38. The pushing grooves 44 on the upper driving ring 36 and the lower driving ring 37 will push the rotating rod 43 to move, and the rotating rod 43 drives the cross bar to move, thereby driving the middle position of the expansion rubber tube 12 to move through the patch, so that the expansion rubber tube 12 changes from the original cylindrical shape to an elliptical shape. At this time, the internal space of the expansion rubber tube 12 increases, generating negative pressure for discharging accumulated fluid.

[0058] A movable groove that cooperates with the cross bar is provided on the side wall of the negative pressure cover 6. The cross bar is restricted by the movable groove and cannot move left and right. It can only slide on the negative pressure cover 6 (the cross bar extends or retracts into the negative pressure cover 6). The rotating rod 43 is located outside the negative pressure cover 6.

[0059] The pushing groove 44 adopts a 45-degree inclined design. When the upper driving ring 36 and the lower driving ring 37 rotate, the side wall of the pushing groove 44 will resist the rotating rod 43. Due to the inclined design of the pushing groove 44, it will generate thrust in two directions on the rotating rod 43. The force in one direction is limited by the moving groove and will not produce any effect, while the thrust in the other direction will push the rotating rod 43 to move on the straight line connecting the rotating rod 43 and the center points of the upper driving ring 36 and the lower driving ring 37, thereby driving the cross bar to extend and retract (move in the moving groove).

[0060] The purpose of the rotational connection between the rotating rod 43 and the cross bar is to convert the sliding friction generated by the pressing against the side wall of the pushing groove 44 into rolling friction, effectively reducing the friction force, thereby extending the service life of the pushing groove 44 and the rotating rod 43.

[0061] The driving mechanism 7 includes a driving motor 39 fixedly mounted on the negative pressure cover 6, on which a shaft is rotatably mounted. The shaft is connected to the driving end of the driving motor 39 through a crawler unit 40. A gear 41 is fixedly mounted on the shaft, and a gear ring 42 meshing with the gear 41 is fixedly mounted on the upper driving ring 36.

[0062] The rotation of the driving end of the driving motor 39 drives the gear 41 to rotate through the crawler unit 40, and then drives the gear ring 42 meshing with the gear 41 to rotate, and the rotation of the gear ring 42 drives the upper driving ring 36 to rotate.

[0063] The crawler unit 40 is an existing transmission structure, which is composed of a crawler and a crawler roller. The purpose of using the crawler unit 40 here is to reduce the impact of the vibration generated by the operation of the drive motor 39 on the rotation of the upper driving ring 36 (the crawler has a certain tension, which can weaken the displacement caused by the vibration, thereby reducing the vibration propagation), so that the upper driving ring 36 rotates more stably, which is conducive to the precise control of the negative pressure.

[0064] Example 2: This example differs from the example 1 in that: Figures 1-4 、 Figures 8-17 The upper part of the expansion rubber tube 12 is fixedly connected to a drainage syringe 16, and the drainage syringe 16 is connected to the drainage tube 2 through the third control component 11. The bottom of the expansion rubber tube 12 is fixedly connected to a drainage bucket 15, and the drainage bucket 15 is fixedly connected to a connecting pipe 14. The drainage bucket 15 is equipped with a collecting part and a backwashing part;

[0065] The third control component 11 includes a first shell 17, the two ends of which are fixedly connected to the drainage syringe 16 and the drainage tube 2 respectively. A first blocking ball 20 is installed in the first shell 17 through a first pressing mechanism. The diameter of the first blocking ball 20 is larger than the diameter of the upper opening of the first shell 17. A backwash hole 27 is opened on the first blocking ball 20. A one-way mechanism cooperating with the backwash hole 27 is installed on the first blocking ball 20. A first locking mechanism cooperating with the first blocking ball 20 is installed on the first shell 17.

[0066] When the expansion rubber tube 12 expands, negative pressure is generated inside the expansion rubber tube 12, which will drain the accumulated fluid in the drainage tube 2 to the drainage syringe 16 (the liquid outlet of the drainage syringe 16 is designed to be inclined, so the accumulated fluid will be discharged along the drainage syringe 16 and will not contact the inner wall of the expansion rubber tube 12), and then the accumulated fluid will pass through the drainage syringe 16 and fall directly into the drainage hopper 15 (the upper opening of the drainage hopper 15 is larger than its lower opening to better receive the accumulated fluid).

[0067] The first blocking ball 20 is larger than the diameter of the upper opening of the first shell 17, so that when the first blocking ball 20 abuts against the upper opening of the first shell 17, the upper opening of the first shell 17 is blocked, and the effusion cannot pass through, thereby achieving the sealing effect.

[0068] The first pressing mechanism includes a plurality of first fixed frames 21 fixedly installed in the first shell 17, and each first fixed frame 21 is fixedly installed with a first elastic telescopic rod 22.

[0069] Under the action of the first elastic telescopic rod 22, the first blocking ball 20 always abuts against the upper opening of the first shell 17, and when negative pressure is generated in the inflatable rubber tube 12, the first blocking ball 20 is pulled to the side close to the inflatable rubber tube 12, so that the first blocking ball 20 is always separated from the upper opening of the first shell 17, and at this time, the effusion can pass through the first blocking ball 20 and enter the first shell 17.

[0070] The first fixed frame 21 is designed with a local protrusion, so that the probability of effusion accumulation on the first fixed frame 21 can be effectively reduced.

[0071] The one-way mechanism includes a plurality of second elastic telescopic rods 28 fixedly installed in the backwashing hole 27, and the extension ends of the plurality of second elastic telescopic rods 28 are fixedly installed with a blocking disc 26 matched with the backwashing hole 27.

[0072] The backwashing hole 27 is fixedly installed with a limiting clamp, and the blocking disc 26 is provided with a limiting slot matched with the limiting clamp. Under the action of the limiting clamp and the limiting slot, the retraction of the blocking disc 26 into the backwashing hole 27 is limited, and the blocking disc 26 cannot be completely retracted. When the blocking disc 26 is retracted to the limit, the top of the blocking disc 26 is still located outside the backwashing hole 27, so that the effusion cannot enter the backwashing hole 27 and cause effusion accumulation.

[0073] When backwashing is needed due to high-strength blockage of the drainage device (high-strength blockage is generally blockage of the needle port of the drainage needle 1, and the blockage cannot be cleared by increasing the negative pressure, so backwashing is needed), at this time, the first locking mechanism is used to lock the first blocking ball 20, so that the first blocking ball 20 always abuts against the upper opening of the first shell 17, and the first elastic telescopic rod 22 cannot be compressed. At this time, the negative pressure cannot drive the first blocking ball 20 to move downward (the up and down positions of the first blocking ball 20 are referred to Figure 11 ), and the effusion cannot enter the first shell 17. Conversely, when the inflatable rubber tube 12 is retracted, the space in the inflatable rubber tube 12 is compressed, and the pressure is increased (the pressure is greater than the pressure inside the thoracic cavity), so that the blocking disc 26 is pushed away, and the cleaning liquid in the inflatable rubber tube 12 is guided into the thoracic cavity through the backwashing hole 27, thereby backwashing and clearing the port of the drainage needle 1.

[0074] The first locking mechanism includes a first rotating ring 19 threadably mounted on the outside of the first shell 17 through a threaded groove 25. A plurality of first sliding grooves 24 are provided on the side wall of the first shell 17. A first push rod 23 cooperating with the first blocking ball 20 is slidably mounted in each first sliding groove 24. A first sealing ring 18 is slidably mounted on the outside of the first shell 17. The first sealing ring 18 and the plurality of first push rods 23 are fixedly connected, and the first rotating ring 19 and the first sealing ring 18 are rotatably connected.

[0075] Rotating the first rotating ring 19 will drive the first sealing ring 18 to move under the action of the thread groove 25, thereby driving the first push rod 23 to move upward (reference to the upper and lower positions). Figure 11 ), so that the first push rod 23 abuts against the first blocking ball 20 to lock the first blocking ball 20.

[0076] The first push rod 23 is L-shaped, and the bottom horizontal section of the L-shape is convex, which has the same function as the first fixing frame 21 to prevent liquid accumulation.

[0077] The collecting part includes a collecting bottle 5, which is connected to the drainage bucket 15 through a second control component 10; the backwashing part includes a cleaning bottle 4, which is fixed with a connector 13, and the connector 13 is connected to the connecting pipe 14 through a first control component 9.

[0078] The first control component 9 includes a second shell 30, the two ends of which are respectively connected to the drainage bucket 15 and the collecting bottle 5. A second blocking ball 29 is installed in the second shell 30 through a second pressing mechanism. The diameter of the second blocking ball 29 is larger than the diameter of the upper port of the second shell 30. A second locking mechanism that cooperates with the second blocking ball 29 is installed on the second shell 30.

[0079] The first control assembly 9 and the second control assembly 10 have the same components, but are oriented differently. The second blocking ball 29 inside the first control assembly 9 is located on the left side (left and right refer to Figure 4 ), the second blocking ball 29 inside the second control assembly 10 is located at the upper part (see the upper and lower parts here Figure 4 ).

[0080] During drainage, the pleural effusion passes through Figure 4 The middle FF pathway drains the effusion from the pleural cavity into the collection bottle 5 .

[0081] During backwashing, the cleaning liquid in the cleaning bottle 4 will pass through Figure 4 The middle GG path enters the chest cavity and backwashes and unclogs the drainage needle 1.

[0082] The second pressing mechanism includes a plurality of second fixing frames 33 fixedly mounted on the inner wall of the second shell 30 , each of which is fixedly mounted with a third elastic telescopic rod 34 , and each telescopic end of the third elastic telescopic rod 34 is fixedly connected to the second blocking ball 29 .

[0083] The principle of this part is the same as that of the first pressing mechanism mentioned above. For the sake of easy distinction, this part is divided into two different groups of mechanisms.

[0084] The second locking mechanism includes a second rotating ring 32 threadedly mounted on the outside of the second shell 30, a second sealing ring 31 is rotatably mounted on the second rotating ring 32, the second sealing ring 31 is slidingly connected to the second shell 30, and a plurality of second push rods 35 cooperating with the second blocking balls 29 are fixedly mounted on the second sealing ring 31. Each second push rod 35 passes through the second shell 30 and extends into the interior of the second shell 30. A plurality of grooves cooperating with the corresponding second push rods 35 are opened on the side wall of the second shell 30.

[0085] The principle of this part is the same as that of the first locking mechanism mentioned above. For the sake of easy distinction, this part is divided into two different groups of mechanisms.

[0086] Rotating the second rotating ring 32 drives the second sealing ring 31 to move, thereby driving the second push rod 35 so that the second push rod 35 abuts against the second blocking ball 29 to lock the second blocking ball 29 .

[0087] During drainage, the second sealing ball 29 in the first control assembly 9 is locked, the second sealing ball 29 in the second control assembly 10 is unlocked, and the third control assembly 11 is unlocked. When the expansion rubber tube 12 expands, negative pressure is generated, which will suck the effusion in the pleural cavity into the expansion rubber tube 12. Then the expansion rubber tube 12 retracts, and the effusion in the expansion rubber tube 12 is squeezed into the collection bottle 5. The drainage path is as follows: Figure 4 Middle FF path.

[0088] During backwashing, the second blocking ball 29 in the first control component 9 is unlocked, the second blocking ball 29 in the second control component 10 is locked, and the third control component 11 is locked. At this time, when the expansion rubber tube 12 expands and generates negative pressure, the cleaning liquid in the cleaning bottle 4 is sucked into the expansion rubber tube 12, and then the expansion rubber tube 12 retracts, squeezing the cleaning liquid in the expansion rubber tube 12 into the chest cavity. The backwashing path is as follows: Figure 4 Middle GG path.

[0089] The specific operating steps of this device are as follows:

[0090] Drainage: The first control component 9 is locked, the second control component 10 is unlocked, the third control component 11 is unlocked, and the drive motor 39 is started. The rotation of the driving end of the drive motor 39 will drive the gear 41 to rotate through the crawler unit 40, and then drive the gear ring 42 meshing with the gear 41 to rotate. The rotation of the gear ring 42 drives the upper driving ring 36 to rotate. The rotation of the upper driving ring 36 will drive the lower driving ring 37 to rotate along with the upper driving ring 36 through the connecting ring 38. The pushing grooves 44 on the upper driving ring 36 and the lower driving ring 37 will push the rotating rod 43 to move, and the rotating rod 43 drives the cross bar to move, thereby driving the middle position of the expansion rubber tube 12 to move through the patch, so that the expansion rubber tube 12 changes from the original cylindrical shape to an elliptical shape. At this time, the internal space of the expansion rubber tube 12 increases, which will suck the effusion in the thoracic cavity into the expansion rubber tube 12. Then the driving end of the drive motor 39 is reversed to squeeze the effusion in the expansion rubber tube 12 into the collection bottle 5.

[0091] Backwashing: The first control assembly 9 is unlocked, the second control assembly 10 is locked, and the third control assembly 11 is locked. The drive motor 39 is started. The rotation of the driving end of the drive motor 39 will drive the gear 41 to rotate through the crawler assembly 40, and then drive the gear ring 42 meshing with the gear 41 to rotate. The rotation of the gear ring 42 drives the upper driving ring 36 to rotate. The rotation of the upper driving ring 36 will drive the lower driving ring 37 to rotate along with the upper driving ring 36 through the connecting ring 38. The pushing grooves 44 on the upper driving ring 36 and the lower driving ring 37 will push the rotating rod 43 to move. The rotating rod 43 drives the cross bar to move, thereby driving the middle position of the expansion rubber tube 12 to move through the patch, so that the expansion rubber tube 12 changes from the original cylindrical shape to an elliptical shape. At this time, the internal space of the expansion rubber tube 12 increases. At this time, when the expansion rubber tube 12 expands and generates negative pressure, the cleaning fluid in the cleaning bottle 4 will be sucked into the expansion rubber tube 12. Then the expansion rubber tube 12 retracts, and the cleaning fluid in the expansion rubber tube 12 is squeezed into the chest cavity to backwash the drainage needle 1.

[0092] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A thoracic surgical puncture drainage device, comprising a drainage needle (1) and a drainage tube (2) connected to the drainage needle (1), characterized in that: It also includes a negative pressure component connected to the drainage tube (2); The negative pressure component comprises an expansion rubber tube (12) and a housing (3). An adjusting component (8) matched with the expansion rubber tube (12) is installed on the housing (3). The adjusting component (8) is used to drive the expansion rubber tube (12) to expand and contract, and realize the variable pressure and constant pressure extraction of the pleural effusion through the expansion and contraction of the expansion rubber tube (12). The upper part of the expansion rubber tube (12) is fixedly connected to a drainage syringe (16). The drainage syringe (16) and the drainage tube (2) are connected through a third control component (11). The bottom of the expansion rubber tube (12) is fixedly connected to a drainage bucket (15). The drainage bucket (15) is fixedly connected to a connecting pipe (14). The drainage bucket (15) is installed with a collecting part and a backwashing part. The regulating assembly (8) includes a negative pressure cover (6) fixedly mounted inside the housing (3), an upper driving ring (36) and a lower driving ring (37) being rotatably mounted on the negative pressure cover (6), the upper driving ring (36) and the lower driving ring (37) being fixedly connected via a connecting ring (38), a plurality of push grooves (44) being provided on the upper driving ring (36) and the lower driving ring (37), a plurality of patches being fixedly mounted on the side wall of the expansion rubber tube (12), a cross bar being fixedly mounted on each of the patches, and two rotating rods (43) being rotatably mounted on each of the cross bars and cooperating with the push grooves (44) on the corresponding upper driving ring (36) and the lower driving ring (37), and a driving mechanism (7) cooperating with the upper driving ring (36) being mounted on the negative pressure cover (6); The collecting part comprises a collecting bottle (5), wherein the collecting bottle (5) is connected to the drainage bucket (15) via a second control assembly (10); the backwashing part comprises a cleaning bottle (4), wherein a connector (13) is fixedly connected to the cleaning bottle (4), and the connector (13) is connected to the connecting pipe (14) via a first control assembly (9).

2. The thoracic surgery puncture drainage device according to claim 1, characterized in that: The driving mechanism (7) includes a driving motor (39) fixedly mounted on the negative pressure cover (6), a shaft being rotatably mounted on the negative pressure cover (6), the shaft being connected to a driving end of the driving motor (39) via a crawler unit (40), a gear (41) being fixedly mounted on the shaft, and a gear ring (42) meshing with the gear (41) being fixedly mounted on the upper driving ring (36).

3. The thoracic surgery puncture drainage device according to claim 1, characterized in that: The third control component (11) includes a first shell (17), the two ends of the first shell (17) are fixedly connected to the drainage syringe (16) and the drainage tube (2), respectively, and a first blocking ball (20) is installed in the first shell (17) through a first pressing mechanism. The diameter of the first blocking ball (20) is larger than the diameter of the upper opening of the first shell (17). A backwash hole (27) is provided on the first blocking ball (20), and a one-way mechanism that cooperates with the backwash hole (27) is installed on the first blocking ball (20). A first locking mechanism that cooperates with the first blocking ball (20) is installed on the first shell (17).

4. The thoracic surgery puncture drainage device according to claim 3, characterized in that: The first pressing mechanism comprises a plurality of first fixing frames (21) fixedly mounted inside the first housing (17), a first elastic telescopic rod (22) being fixedly mounted on each of the first fixing frames (21), and each of the first elastic telescopic rods (22) being fixedly connected to the first blocking ball (20).

5. The thoracic surgery puncture drainage device according to claim 3, characterized in that: The one-way mechanism comprises a plurality of second elastic telescopic rods (28) fixedly mounted in the backwash hole (27), and a blocking disk (26) matched with the backwash hole (27) is fixedly mounted on the telescopic ends of the plurality of second elastic telescopic rods (28).

6. The thoracic surgery puncture and drainage device according to claim 3, characterized in that: The first locking mechanism comprises a first rotating ring (19) which is threadably mounted on the outside of the first housing (17) via a threaded groove (25); a plurality of first sliding grooves (24) are provided on the side wall of the first housing (17); a first push rod (23) which matches the first blocking ball (20) is slidably mounted in each of the first sliding grooves (24); a first sealing ring (18) is slidably mounted on the outside of the first housing (17); the first sealing ring (18) and the plurality of first push rods (23) are fixedly connected; and the first rotating ring (19) and the first sealing ring (18) are rotatably connected.

7. The thoracic surgery puncture drainage device according to claim 1, characterized in that: The first control assembly (9) includes a second shell (30), the two ends of which are respectively connected to the drainage bucket (15) and the collecting bottle (5), a second blocking ball (29) is installed in the second shell (30) through a second pressing mechanism, the diameter of the second blocking ball (29) is larger than the diameter of the upper port of the second shell (30), and a second locking mechanism that cooperates with the second blocking ball (29) is installed on the second shell (30).

8. The thoracic surgery puncture and drainage device according to claim 7, characterized in that: The second pressing mechanism comprises a plurality of second fixing frames (33) fixedly mounted on the inner wall of the second shell (30), each of the second fixing frames (33) being fixedly mounted with a third elastic telescopic rod (34), and the telescopic end of each third elastic telescopic rod (34) being fixedly connected to the second blocking ball (29).

9. The thoracic surgery puncture and drainage device according to claim 7, characterized in that: The second locking mechanism includes a second rotating ring (32) threadedly mounted on the outside of the second shell (30), a second sealing ring (31) being rotatably mounted on the second rotating ring (32), the second sealing ring (31) being slidably connected to the second shell (30), a plurality of second push rods (35) cooperating with the second blocking balls (29) being fixedly mounted on the second sealing ring (31), each of the second push rods (35) passing through the second shell (30) and extending into the interior of the second shell (30), and a plurality of grooves cooperating with the corresponding second push rods (35) being provided on the side wall of the second shell (30).

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