Hydrops drainage equipment used after mammary gland operation

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a mammary gland postoperative effusion drainage device which comprises a drainage tube, a flushing tube, a catheter, a drainage flushing mechanism, a cleaning mechanism and a connecting mechanism. The drainage tube and the catheter are arranged in a sectional mode, the drainage tube stretches into the body of a patient to make contact with hydrops, the catheter and the connecting mechanism can be repeatedly used, the drainage tube only needs to be discarded after drainage is completed, and therefore waste of medical resources is reduced; the catheter is temporarily detached from the connecting mechanism, only the connecting mechanism and the drainage tube are on the body of a patient, the patient can go to a toilet and the like conveniently, the convenience of the effusion drainage equipment is improved, the drainage tube is automatically blocked by the connecting mechanism after the catheter is detached, and the probability that viruses, bacteria and the like enter the body of the patient through the drainage tube is reduced; when the catheter is flushed, the drainage tube is blocked by the connecting mechanism, the catheter does not need to be dismantled, flushing convenience is improved, and meanwhile cleaning liquid is prevented from entering the body of a patient through the drainage tube.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, in particular to a device for draining fluid accumulation after breast surgery. Background Art

[0002] The breast is located between the superficial and deep layers of the subcutaneous superficial fascia. Because it is located on the body surface, it is easy to be discovered when a tumor disease occurs in the breast. Surgical treatment is one of the main treatment methods for early breast cancer. After surgery for breast cancer or other large benign tumors, due to the large wound surface and relatively more exudate and bleeding, a negative pressure drainage device is often required to drain the accumulated fluid in time. The negative pressure drainage device generally includes a drainage tube, a fluid collection device and a negative pressure device. One end of the drainage tube is in contact with the accumulated fluid, and the negative pressure device generates negative pressure to cause the accumulated fluid to flow into the fluid collection device through the drainage tube.

[0003] Pus or blood in the patient's body may clump together. When the current drainage device is in use, the drainage tube is prone to blockage, which makes the drainage tube unable to perform drainage operations and reduces the drainage effect. The drainage tube is a disposable item. The current drainage tube is a whole-root type. After the drainage is completed, the drainage tube must be discarded as a whole, resulting in a waste of medical resources. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the present invention proposes a post-breast surgery drainage device for effusion. The present invention is mainly used to solve the problem that the drainage tube of the current drainage device is easily blocked when in use, which reduces the drainage effect, and the drainage tube must be discarded after the drainage is completed, resulting in a waste of medical resources.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention provides a post-breast surgery drainage device for effusion, including a drainage tube, a flushing tube, a catheter, a drainage and flushing mechanism, a cleaning mechanism and a connecting mechanism;

[0006] One end of the drainage tube is provided with an extension portion; the other end of the drainage tube is connected to the connecting mechanism; the connecting mechanism and the drainage and flushing mechanism are connected via the catheter; the connecting mechanism and the drainage and flushing mechanism are connected via the flushing tube; the drainage and flushing mechanism is used to suck the accumulated fluid around the extension portion; the drainage and flushing mechanism is used to flush the sediment in the catheter; the cleaning mechanism is used to clean the sediment in the drainage tube.

[0007] Preferably, the connecting mechanism comprises a No. 1 connecting cylinder, a No. 2 blocking member, a No. 1 sealing member, a No. 2 sealing member, a No. 3 sealing member, a No. 1 connecting plate, a No. 1 connecting member, a No. 2 elastic member, a No. 2 magnet, a No. 3 sliding member, a No. 3 limiting member, a No. 3 elastic member, a No. 2 connecting plate, a No. 3 connecting plate, a No. 3 magnet, a No. 2 connecting member and a No. 1 elastic member;

[0008] The side wall of the No. 1 connecting tube is symmetrically provided with a No. 1 opening; the side wall of the No. 1 connecting tube is symmetrically provided with a No. 1 tubular structure and a No. 2 tubular structure; one of the No. 1 openings is connected to the No. 1 tubular structure; the other No. 1 opening is connected to the No. 2 tubular structure; the No. 1 tubular structure is detachably connected to the drainage tube; the No. 2 tubular structure is detachably connected to the No. 2 blocking member;

[0009] The No. 1 seal, the No. 2 seal and the No. 3 seal are arranged in order from bottom to top in the No. 1 connecting tube; the outer walls of the No. 1 seal, the No. 2 seal and the No. 3 seal are all slidably connected to the inner wall of the No. 1 connecting tube; the outer walls of the No. 2 seal and the No. 3 seal are all sealedly connected to the inner wall of the No. 1 connecting tube;

[0010] The lower end of the No. 1 sealing member is provided with a No. 1 cylindrical structure; the lower end of the No. 1 cylindrical structure is fixedly connected to the No. 1 connecting plate; the No. 1 connecting plate is provided with a No. 1 limiting portion; the No. 1 connecting member is arranged outside the No. 1 connecting plate; the No. 1 connecting member is threadedly connected to the No. 1 connecting tube; the lower end of the No. 1 sealing member is provided with a No. 3 tubular structure; the No. 3 tubular structure is detachably connected to the conduit;

[0011] A No. 2 guide structure is symmetrically arranged on the lower end surface of the No. 2 seal; the No. 2 guide structure is slidably connected to the No. 1 seal; a No. 2 cylindrical structure is arranged at the lower end of the No. 2 guide structure; the No. 2 elastic member is arranged inside the No. 2 cylindrical structure; the upper end of the No. 2 elastic member abuts inside the No. 2 cylindrical structure; the lower end of the No. 2 elastic member abuts against the No. 1 connecting plate; the upper end of the No. 2 seal is fixedly connected to the No. 2 magnet; and No. 2 through holes are symmetrically arranged on the No. 2 seal;

[0012] A No. 3 sliding groove is provided in the middle of the No. 3 sealing member; a No. 3 mounting groove is symmetrically provided on the No. 3 sealing member; the No. 3 mounting groove is slidably connected to the No. 3 sliding member; a No. 3 connecting groove is provided at one end of the No. 3 sliding member; the No. 3 limiting member is connected in the No. 3 connecting groove; the No. 3 elastic member is provided at the other end of the No. 3 sliding member; one end of the No. 3 elastic member abuts against the No. 3 sliding member; the other end of the No. 3 elastic member abuts against the bottom surface of the No. 3 mounting groove;

[0013] The upper end of the No. 1 connecting tube is provided with a No. 1 limiting structure; the No. 1 limiting structure is provided with a No. 1 mounting groove; one end of the No. 2 connecting plate is provided with a No. 4 tubular structure; the No. 4 tubular structure is detachably connected to the flushing pipe; the other end of the No. 2 connecting plate is provided with a No. 5 tubular structure; the side wall of the lower end of the No. 5 tubular structure is evenly spaced with No. 5 through holes;

[0014] The No. 3 connecting plate is arranged outside the No. 5 tubular structure; the No. 3 connecting plate is provided with a No. 3 limiting portion; the lower end of the No. 3 connecting plate is fixedly connected to the No. 3 magnet; the No. 2 connecting piece is arranged outside the No. 2 connecting plate; the No. 2 connecting piece is threadedly connected to the No. 1 connecting tube; the No. 1 elastic piece is arranged in the No. 1 mounting groove; the lower end of the No. 1 elastic piece abuts against the bottom surface of the No. 1 mounting groove; the upper end of the No. 1 elastic piece abuts against the No. 3 limiting portion.

[0015] Preferably, the cleaning mechanism comprises a connecting tube and a syringe; one end of the connecting tube is detachably connected to the syringe; the other end of the connecting tube is provided with a cleaning portion; and the side wall at the cleaning portion is thinner than the side wall at other locations.

[0016] Preferably, the drainage and flushing mechanism comprises a liquid storage tank, a No. 1 box body, a No. 6 sliding plate, a No. 1 one-way valve, a No. 2 one-way valve, a No. 3 one-way valve, a No. 4 one-way valve, a No. 1 connecting shaft and a driving member;

[0017] The top of the liquid storage tank is fixedly connected to the No. 1 box body; both ends of the No. 1 box body are closed; a No. 6 sliding groove is provided on the end surface of one end of the No. 1 box body; the No. 6 sliding plate is connected to the No. 1 box body; the outer wall of the No. 6 sliding plate is slidably connected to the inner wall of the No. 1 box body; the outer wall of the No. 6 sliding plate is sealedly connected to the inner wall of the No. 1 box body; a No. 6 cylindrical structure is provided in the middle of the No. 6 sliding plate; an internal thread structure is provided on the inner wall of the No. 6 cylindrical structure; the outer wall of the No. 6 cylindrical structure is sealedly connected to the inner wall of the No. 6 sliding groove;

[0018] The No. 6 sliding plate divides the No. 1 box into two chambers; one side of the No. 6 sliding plate is a liquid accumulation chamber; the other side of the No. 6 sliding plate is a cleaning liquid chamber;

[0019] The No. 1 one-way valve and the No. 2 one-way valve are connected to the end surface of one end of the No. 1 box; the No. 3 one-way valve and the No. 4 one-way valve are connected to the end surface of the other end of the No. 1 box; the inlet end of the No. 1 one-way valve is fixed and communicated with the conduit; the outflow end of the No. 1 one-way valve is communicated with the liquid accumulation chamber; the inlet end of the No. 2 one-way valve is communicated with the liquid accumulation chamber; the outflow end of the No. 2 one-way valve is communicated with the liquid storage tank; the inlet end of the No. 3 one-way valve is communicated with the cleaning liquid chamber; the outflow end of the No. 3 one-way valve is fixed and communicated with the flushing pipe; the inlet end of the No. 4 one-way valve is communicated with the external air; the outflow end of the No. 4 one-way valve is communicated with the cleaning liquid chamber;

[0020] The upper end of the liquid storage tank is rotatably connected to the No. 1 connecting shaft; the end of the No. 1 connecting shaft is provided with an external thread structure; the external thread structure interferes with the No. 6 cylindrical structure; the external thread structure is threadedly connected to the internal thread structure; the upper end of the liquid storage tank is connected to the driving member; the driving member is used to drive the No. 1 connecting shaft to rotate.

[0021] Preferably, the third limiting member is spherical.

[0022] Preferably, a No. 1 frame and a No. 2 frame are provided in the side wall of the connecting tube; the No. 1 frame and the No. 2 frame are spaced apart along the axial direction of the connecting tube; the No. 1 frame and the No. 2 frame are arranged on both sides of the cleaning part; the No. 1 frame and the No. 2 frame are both fixedly connected to the side wall of the connecting tube; the No. 1 frame and the No. 2 frame are both spiral structures made of metal wire.

[0023] Preferably, a No. 3 frame is provided on the side wall of the drainage tube; the No. 3 frame is fixedly connected to the side wall of the drainage tube; the No. 3 frame is a spiral structure made of metal wire.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The fluid drainage device of the present invention is provided with a segmented drainage tube and a catheter. The drainage tube is extended into the patient's body to contact the effusion. The catheter and the connecting mechanism can be reused. After the drainage is completed, the drainage tube only needs to be discarded, thereby reducing the waste of medical resources. When the patient goes to the bathroom, the catheter is temporarily removed from the connecting mechanism, and only the connecting mechanism and the drainage tube are on the patient, which is convenient for the patient to go to the bathroom and improves the convenience of the fluid drainage device. After the catheter is removed, the connecting mechanism automatically blocks the drainage tube, reducing the probability of viruses, bacteria, etc. entering the patient's body through the drainage tube. When the catheter is flushed, the drainage tube is blocked by the connecting mechanism, and the catheter does not need to be removed, thereby improving the convenience of flushing and preventing the cleaning fluid from entering the patient's body through the drainage tube.

[0026] 2. In the present invention, the No. 2 seal is in contact with the No. 3 seal, and the No. 3 seal is in contact with the No. 1 limiting structure. The No. 3 seal is located above the No. 1 opening, and the No. 1 opening is in an open state, so that the drainage tube is in a connected state with the No. 1 connecting tube, and the accumulated fluid is drained; when the catheter needs to be temporarily removed, the No. 1 connecting piece is detached from the No. 1 connecting tube, and then the No. 3 tubular structure is pulled downward to drive the No. 2 seal to move downward, and the No. 2 magnet generates suction on the No. 3 seal, driving the No. 3 seal to move downward. When the two No. 3 limiting pieces move to the two No. 1 openings respectively, the elastic force of the No. 3 elastic piece causes the No. 3 limiting piece to contact with the No. 1 opening, and the No. 2 seal continues to move downward, and the No. 3 seal is separated from the No. 2 seal. The side wall of the component is sealed and connected with the inner wall of the No. 1 connecting tube, and the No. 3 sealing component blocks the No. 1 opening, so that the drainage tube and the No. 1 connecting tube are in a disconnected state; when flushing the catheter, first press the No. 3 connecting plate downward, the No. 3 magnet abuts on the No. 3 sealing component, and the No. 3 magnet generates suction on the No. 3 sealing component, and then rotate the No. 2 connecting component to drive the No. 2 connecting plate to move downward, drive the No. 5 tubular structure to move downward, move the No. 2 sealing component downward, and keep the No. 3 sealing component stationary until the No. 3 limiting part abuts on the No. 1 limiting structure, at this time, the No. 2 sealing component abuts at the No. 1 opening, blocks the No. 1 opening, and the drainage tube and the No. 1 connecting tube are in a disconnected state, so that the cleaning fluid enters the catheter to flush the sediment in the catheter.

[0027] 3. When cleaning the drainage tube in the present invention, the cleaning part is located at the end of the insertion part, and then physiological saline is injected into the connecting tube through a syringe to increase the pressure in the connecting tube, so that the cleaning part expands outward and the side wall of the cleaning part is close to the inner wall of the drainage tube. Then, the connecting tube is pulled outward to drive the cleaning part to move, and the cleaning part brings out the sediment on the inner wall of the drainage tube to clean the drainage tube.

[0028] 4. During drainage in the present invention, the driving member drives the No. 1 connecting shaft to rotate in the forward direction, drives the No. 6 sliding plate to move, increases the volume of the fluid accumulation chamber, generates suction on the fluid accumulated in the breast, and causes the accumulated fluid to enter the fluid accumulation chamber. Then the driving member causes the No. 1 connecting shaft to rotate in the reverse direction, increases the pressure in the fluid accumulation chamber, causes the accumulated fluid to enter the liquid storage tank through the No. 2 one-way valve, and through the reciprocating movement of the No. 6 sliding plate, the breast fluid is continuously drained into the fluid accumulation chamber, and the accumulated fluid in the fluid accumulation chamber is transferred to the liquid storage tank; when flushing the catheter, the driving member causes the No. 1 connecting shaft to rotate in the forward direction, causes the No. 6 sliding plate to move toward the side of the No. 3 one-way valve, increases the pressure in the cleaning fluid chamber, causes the cleaning fluid to enter the catheter, and flushes the sediment in the catheter.

[0029] 5. In the present invention, the No. 3 limit piece can roll along the inner wall of the No. 1 connecting tube, reducing the friction between the No. 3 limit piece and the inner wall of the No. 1 connecting tube, reducing the probability of local protrusions on the inner wall of the No. 1 connecting tube, reducing the probability of the No. 3 limit piece being stuck by the local protrusions, and improving the reliability of the movement of the No. 3 limit piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a schematic diagram of the overall structure of the effusion drainage device of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the cleaning mechanism in the present invention;

[0033] Figure 3 It is a structural schematic diagram of box No. 1 in the present invention;

[0034] Figure 4 It is a schematic diagram of the internal structure of box No. 1 in the present invention;

[0035] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0036] Figure 6 It is a schematic diagram of the internal structure of the No. 1 connecting tube in the present invention;

[0037] Figure 7 It is a schematic diagram of the third stopper in the present invention interfering with the first opening;

[0038] Figure 8 It is a schematic diagram of the cleaning mechanism of the present invention when it is working;

[0039] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0040] Fig.10 yes Figure 8 A partial enlarged view of point C in the middle;

[0041] Fig.11 is a schematic diagram of the second seal member abutting against the first opening in the present invention;

[0042] Fig.12 It is a schematic diagram of the structure of the second elastic member in the present invention;

[0043] Fig.13 It is a schematic diagram of the structure of the No. 1 seal and the No. 2 seal in the present invention;

[0044] Fig.14 It is a structural schematic diagram of the second connecting plate in the present invention;

[0045] Fig.15 It is a schematic diagram of the structure of the No. 3 seal in the present invention;

[0046] Fig.16 It is a structural schematic diagram of the No. 3 connecting plate in the present invention;

[0047] Fig.17 It is a structural schematic diagram of the sixth sliding plate in the present invention;

[0048] Fig.18 It is a schematic diagram of the structure of the No. 3 skeleton in the present invention;

[0049] Fig.19 It is a schematic diagram of the structure of the first skeleton and the second skeleton in the present invention;

[0050] In the figure: drainage tube 1, insertion part 11, No. 3 frame 12, flushing tube 2, catheter 3, drainage flushing mechanism 4, liquid storage tank 41, No. 1 box body 42, No. 6 sliding plate 43, No. 6 tubular structure 431, No. 1 one-way valve 44, No. 2 one-way valve 45, No. 3 one-way valve 46, No. 4 one-way valve 47, No. 1 connecting shaft 48, external thread structure 481, driving member 49, cleaning mechanism 5, connecting tube 51, cleaning part 511, No. 1 frame 512, No. 2 frame 513, syringe 52, connecting mechanism 6, No. 1 connecting tube 61, No. 1 opening 611, No. 1 tubular structure 612, No. 2 tubular structure 613, No. 1 limiting structure 614, No. 1 mounting groove 615, No. 2 blocking member 62, No. 1 sealing member Seal 63, No. 1 tubular structure 631, No. 3 tubular structure 632, No. 2 seal 64, No. 2 guide structure 641, No. 2 tubular structure 642, No. 2 through hole 643, No. 3 seal 65, No. 3 sliding groove 651, No. 3 mounting groove 652, No. 1 connecting plate 66, No. 1 limiting portion 661, No. 1 connecting piece 67, No. 2 elastic piece 68, No. 2 magnet 69, No. 3 sliding piece 70, No. 3 connecting groove 701, No. 3 limiting piece 71, No. 3 elastic piece 72, No. 2 connecting plate 73, No. 4 tubular structure 731, No. 5 tubular structure 732, No. 5 through hole 7321, No. 3 connecting plate 74, No. 3 limiting portion 741, No. 3 magnet 75, No. 2 connecting piece 76, No. 1 elastic piece 77. DETAILED DESCRIPTION

[0051] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0052] like Figure 1-Figure 19 As shown, a postoperative drainage device for effusion after breast surgery includes a drainage tube 1, a flushing tube 2, a catheter 3, a drainage and flushing mechanism 4, a cleaning mechanism 5 and a connecting mechanism 6;

[0053] One end of the drainage tube 1 is provided with an extension portion 11; the other end of the drainage tube 1 is connected to the connecting mechanism 6; the connecting mechanism 6 and the drainage and flushing mechanism 4 are connected via a catheter 3; the connecting mechanism 6 and the drainage and flushing mechanism 4 are connected via a flushing tube 2; the drainage and flushing mechanism 4 is used to suck the accumulated fluid around the extension portion 11; the drainage and flushing mechanism 4 is used to flush the sediment in the catheter 3; the cleaning mechanism 5 is used to clean the sediment in the drainage tube 1.

[0054] When in use, the medical staff first connects one end of the drainage tube 1 to the connecting mechanism 6, extends the insertion portion 11 into the effusion, fixes the other end of the drainage tube 1 and the connecting mechanism 6 on the patient's skin, and then starts the drainage program to enable the drainage and flushing mechanism 4 to perform drainage work. The drainage and flushing mechanism 4 generates suction on the effusion, so that the effusion flows into the drainage and flushing mechanism 4 through the drainage tube 1, the connecting mechanism 6, and the catheter 3 (in this process, the connecting mechanism 6 blocks the flushing tube 2 to prevent the effusion from entering the flushing tube 2), and the effusion is drained. Promote patient recovery; when the catheter 3 is blocked, the drainage tube 1 is first blocked through the connecting mechanism 6, and then the flushing program is started to make the drainage flushing mechanism 4 perform flushing work, so that the cleaning liquid in the drainage flushing mechanism 4 enters the catheter 3 through the flushing tube 2 and the connecting mechanism 6, and returns to the drainage flushing mechanism 4 through the catheter 3, and the cleaning liquid flushes the sediment in the catheter 3 to restore the catheter 3 to be unobstructed; when the drainage tube 1 is blocked, the sediment in the drainage tube 1 is cleared through the cleaning mechanism 5 to restore the drainage tube 1 to be unobstructed;

[0055] The present fluid drainage device is provided with a segmented drainage tube 1 and a catheter 3. The drainage tube 1 is extended into the patient's body to contact the effusion. The catheter 3 and the connecting mechanism 6 can be reused. After the drainage is completed, the drainage tube 1 only needs to be discarded, thereby reducing the waste of medical resources; when the patient goes to the bathroom (or goes out of the ward for examination, eating, etc.), the catheter 3 is temporarily removed from the connecting mechanism 6, and only the connecting mechanism 6 and the drainage tube 1 are on the patient, which is convenient for the patient to go to the bathroom (or go out of the ward for examination, eating, etc.), thereby improving the convenience of the fluid drainage device, and after the catheter 3 is removed, the connecting mechanism 6 automatically blocks the drainage tube 1, thereby reducing the probability of viruses, bacteria, etc. entering the patient's body through the drainage tube 1; when the catheter 3 is flushed, the drainage tube 1 is blocked by the connecting mechanism 6, and the catheter 3 does not need to be removed, thereby improving the convenience of flushing and preventing the cleaning fluid from entering the patient's body through the drainage tube 1.

[0056] The connecting mechanism 6 includes a No. 1 connecting tube 61, a No. 2 blocking member 62, a No. 1 sealing member 63, a No. 2 sealing member 64, a No. 3 sealing member 65, a No. 1 connecting plate 66, a No. 1 connecting member 67, a No. 2 elastic member 68, a No. 2 magnet 69, a No. 3 sliding member 70, a No. 3 limiting member 71, a No. 3 elastic member 72, a No. 2 connecting plate 73, a No. 3 connecting plate 74, a No. 3 magnet 75, a No. 2 connecting member 76 and a No. 1 elastic member 77;

[0057] A No. 1 opening 611 is symmetrically provided on the side wall of the No. 1 connecting tube 61; a No. 1 tubular structure 612 and a No. 2 tubular structure 613 are symmetrically provided on the side wall of the No. 1 connecting tube 61; one of the No. 1 openings 611 is connected to the No. 1 tubular structure 612; the other No. 1 opening 611 is connected to the No. 2 tubular structure 613; the No. 1 tubular structure 612 is detachably connected to the drainage tube 1; the No. 2 tubular structure 613 is detachably connected to the No. 2 blocking member 62;

[0058] The No. 1 connecting tube 61 is provided with a No. 1 sealing member 63, a No. 2 sealing member 64 and a No. 3 sealing member 65 from bottom to top in sequence; the outer walls of the No. 1 sealing member 63, the No. 2 sealing member 64 and the No. 3 sealing member 65 are all slidably connected to the inner wall of the No. 1 connecting tube 61; the outer walls of the No. 2 sealing member 64 and the No. 3 sealing member 65 are all sealedly connected to the inner wall of the No. 1 connecting tube 61;

[0059] A No. 1 cylindrical structure 631 is provided at the lower end of the No. 1 sealing member 63; the lower end of the No. 1 cylindrical structure 631 is fixedly connected to the No. 1 connecting plate 66; the No. 1 connecting plate 66 is provided with a No. 1 limiting portion 661; the No. 1 connecting member 67 is provided on the outer sleeve of the No. 1 connecting plate 66; the No. 1 connecting member 67 is threadedly connected to the No. 1 connecting cylinder 61; a No. 3 tubular structure 632 is provided at the lower end of the No. 1 sealing member 63; the No. 3 tubular structure 632 is detachably connected to the guide tube 3;

[0060] A No. 2 guide structure 641 is symmetrically provided on the lower end surface of the No. 2 seal 64; the No. 2 guide structure 641 is slidably connected to the No. 1 seal 63; a No. 2 cylindrical structure 642 is provided at the lower end of the No. 2 guide structure 641; a No. 2 elastic member 68 is provided in the No. 2 cylindrical structure 642; the upper end of the No. 2 elastic member 68 abuts in the No. 2 cylindrical structure 642; the lower end of the No. 2 elastic member 68 abuts on the No. 1 connecting plate 66; the upper end of the No. 2 seal 64 is fixedly connected to the No. 2 magnet 69; and No. 2 through holes 643 are symmetrically provided on the No. 2 seal 64;

[0061] A No. 3 sliding groove 651 is provided in the middle of the No. 3 sealing member 65; a No. 3 mounting groove 652 is symmetrically provided on the No. 3 sealing member 65; a No. 3 sliding member 70 is slidably connected in the No. 3 mounting groove 652; a No. 3 connecting groove 701 is provided at one end of the No. 3 sliding member 70; a No. 3 limiting member 71 is connected in the No. 3 connecting groove 701; a No. 3 elastic member 72 is provided at the other end of the No. 3 sliding member 70; one end of the No. 3 elastic member 72 abuts against the No. 3 sliding member; and the other end of the No. 3 elastic member 72 abuts against the bottom surface of the No. 3 mounting groove 652;

[0062] A No. 1 limiting structure 614 is provided at the upper end of the No. 1 connecting tube 61; a No. 1 mounting groove 615 is provided on the No. 1 limiting structure 614; a No. 4 tubular structure 731 is provided at one end of the No. 2 connecting plate 73; the No. 4 tubular structure 731 is detachably connected to the flushing pipe 2; a No. 5 tubular structure 732 is provided at the other end of the No. 2 connecting plate 73; and No. 5 through holes 7321 are evenly spaced on the side wall of the lower end of the No. 5 tubular structure 732;

[0063] A No. 3 connecting plate 74 is disposed outside the No. 5 tubular structure 732; a No. 3 limiting portion 741 is provided on the No. 3 connecting plate 74; the lower end of the No. 3 connecting plate 74 is fixedly connected to the No. 3 magnet 75; a No. 2 connecting piece 76 is disposed outside the No. 2 connecting plate 73; the No. 2 connecting piece 76 is threadedly connected to the No. 1 connecting tube 61; a No. 1 elastic piece 77 is arranged in the No. 1 mounting groove 615; the lower end of the No. 1 elastic piece 77 abuts against the bottom surface of the No. 1 mounting groove 615; the upper end of the No. 1 elastic piece 77 abuts against the No. 3 limiting portion 741.

[0064] Before drainage, the No. 1 connecting member 67 is rotated to make the No. 1 limiting portion 661 of the No. 1 connecting plate 66 abut against the end surface of the lower end of the No. 1 connecting tube 61. At this time, the elastic force of the No. 2 elastic member 68 makes the No. 2 sealing member 64 abut against the No. 3 sealing member 65, and the No. 3 sealing member 65 abuts against the No. 1 limiting structure 614. The No. 3 sealing member 65 blocks the No. 2 through hole 643. The elastic force of the No. 1 elastic member 77 supports the No. 3 limiting portion 741, so that the No. 3 limiting portion 741 is away from the No. 1 limiting structure 614. At this time, the lower end of the No. 5 tubular structure 732 abuts against the No. 2 sealing member 64. 4, the third sealing member 65 is located above the first opening 611, and the first opening 611 is in an open state, so that the drainage tube 1 and the first connecting tube 61 are in a connected state, and the drainage and flushing mechanism 4 generates suction on the effusion, so that the effusion passes through the drainage tube 1, the first tubular structure 612, and the first opening 611 to enter between the second sealing member 64 and the first sealing member 63, and enters the catheter 3 through the third tubular structure 632, and finally enters the interior of the drainage and flushing mechanism 4 through the catheter 3 to drain the effusion; when the catheter 3 needs to be temporarily removed, the first connecting member 6 is rotated in the opposite direction. 7, so that the No. 1 connecting member 67 is separated from the No. 1 connecting tube 61, and then the No. 3 tubular structure 632 is pulled downward, driving the No. 1 sealing member 63 to move downward. At this time, the upper end of the No. 2 tubular structure 642 abuts against the lower end surface of the No. 1 sealing member 63, driving the No. 2 tubular structure 642 to move downward, driving the No. 2 guide structure 641 to move downward, driving the No. 2 sealing member 64 to move downward, driving the No. 2 magnet 69 to move downward, the No. 2 magnet 69 generates suction on the No. 3 sealing member 65, driving the No. 3 sealing member 65 to move downward, at this time the No. 3 limiting member 71 abuts against the No. 1 connecting tube On the inner wall of No. 61, when the two No. 3 limiting members 71 move to the two No. 1 openings 611 respectively, the elastic force of the No. 3 elastic member 72 causes the No. 3 limiting member 71 to contact the No. 1 opening 611, limiting the No. 3 sealing member 65, and the No. 2 sealing member 64 continues to move downward to overcome the suction of the No. 2 magnet 69, so that the No. 3 sealing member 65 is separated from the No. 2 sealing member 64. Since the side wall of the No. 3 sealing member 65 is sealed and connected with the inner wall of the No. 1 connecting tube 61, the No. 3 sealing member 65 blocks the No. 1 opening 611, so that the drainage tube 1 and the No. 1 connecting tube 61 are in a disconnected state;When reinstalling the drainage tube 1, insert the No. 2 seal 64 and the No. 1 seal 63 into the No. 1 connecting tube 61 in sequence, so that the No. 2 seal 64 abuts against the No. 3 seal 65, and then rotate the No. 1 connecting member 67 to drive the No. 1 connecting plate 66 to move upward. Under the action of the elastic force of the No. 2 elastic member 68 (the elastic force of the No. 2 elastic member 68 is very large), the No. 2 seal 64 is driven to move upward, and a thrust is generated on the No. 3 seal 65, so that the elastic force of the No. 3 elastic member 72 is overcome, and the No. 3 limiting member 71 is disengaged from the No. 1 opening 611, driving the No. 3 seal 65 to move upward until the No. 3 seal 65 abuts against the No. 1 limiting structure 614, completing the installation of the No. 1 connecting plate 66, and completing. The catheter 3 is installed. At this time, the No. 3 seal 65 is located above the No. 1 opening 611, and the No. 1 opening 611 is in an open state. When flushing the catheter 3, first press the No. 3 connecting plate 74 downward to make the No. 3 limiting portion 741 abut against the No. 1 limiting structure 614. At this time, the lower end of the No. 3 connecting plate 74 abuts against the upper end of the No. 3 seal 65, and the No. 3 magnet 75 abuts against the No. 3 seal 65. The No. 3 magnet 75 generates suction on the No. 3 seal 65, and then the No. 2 connecting piece 76 is rotated to drive the No. 2 connecting plate 73 to move downward, and drive the No. 5 tubular structure 732 to move downward. The No. 5 tubular structure 732 generates a thrust on the No. 2 seal 64 to overcome the No. 2 elastic member 68. The elastic force causes the No. 2 seal 64 to move downward, and at the same time, the suction force of the No. 3 magnet 75 on the No. 3 seal 65 is greater than the sum of the suction force of the No. 2 magnet 69 on the No. 3 seal 65 and the gravity of the No. 3 seal 65, so that the No. 3 seal 65 remains motionless until the No. 3 limit portion 741 abuts against the No. 1 limit structure 614. At this time, the No. 2 seal 64 abuts against the No. 1 opening 611, blocking the No. 1 opening 611, so that the drainage tube 1 and the No. 1 connecting tube 61 are in a disconnected state, and the flushing program is started, so that the cleaning liquid passes through the flushing tube 2, the No. 4 tubular structure 731, the No. 5 tubular structure 732, the No. 5 through hole 7321, and enters the No. 3 seal 65 and the No. 2 seal 61. 4, then enters between the No. 2 seal 64 and the No. 1 seal 63 through the No. 2 through hole 643, and enters into the conduit 3 through the No. 3 tubular structure 632 to flush the sediment in the conduit 3; after the conduit 3 is flushed, the No. 2 connecting member 76 is rotated in the opposite direction, and the No. 3 limiter 741 moves upward under the elastic force of the No. 1 elastic member 77, driving the No. 2 connecting plate 73 to move upward, driving the No. 5 tubular structure 732 to move upward, and the No. 2 seal 64 moves upward under the elastic force of the No. 2 elastic member 68, so that the No. 2 seal 64 contacts the No. 3 seal 65, so that the No. 1 opening 611 is in an open state, and the drainage tube 1 and the No. 1 connecting tube 61 are in a connected state. ;

[0065] The cleaning mechanism 5 comprises a connecting tube 51 and a syringe 52 ; one end of the connecting tube 51 is detachably connected to the syringe 52 ; the other end of the connecting tube 51 is provided with a cleaning portion 511 ; the side wall of the cleaning portion 511 is thinner than the side wall at other locations.

[0066] When cleaning the drainage tube 1, rotate the No. 2 plugging piece 62 to detach the No. 2 plugging piece 62 from the No. 2 tubular structure 613, insert the connecting tube 51 into the No. 2 tubular structure 613, and make the connecting tube 51 extend into the drainage tube 1 through the No. 1 tubular structure 612, so that the cleaning portion 511 is located at the end of the insertion portion 11, and then inject physiological saline into the connecting tube 51 through the syringe 52 to increase the pressure in the connecting tube 51, so that the cleaning portion 511 expands outward, and the side wall of the cleaning portion 511 is close to the inner wall of the drainage tube 1, and then pull the connecting tube 51 outward to drive the cleaning portion 511 to move, and the cleaning portion 511 brings out the sediment on the inner wall of the drainage tube 1 to clean the drainage tube 1.

[0067] The drainage and flushing mechanism 4 includes a liquid storage tank 41, a first box body 42, a sixth sliding plate 43, a first check valve 44, a second check valve 45, a third check valve 46, a fourth check valve 47, a first connecting shaft 48 and a driving member 49;

[0068] The top of the liquid storage tank 41 is fixedly connected to the No. 1 box body 42; both ends of the No. 1 box body 42 are closed; a No. 6 sliding groove is provided on the end surface of one end of the No. 1 box body 42; a No. 6 sliding plate 43 is connected inside the No. 1 box body 42; the outer wall of the No. 6 sliding plate 43 is slidably connected to the inner wall of the No. 1 box body 42; the outer wall of the No. 6 sliding plate 43 is sealedly connected to the inner wall of the No. 1 box body 42; a No. 6 cylindrical structure 431 is provided in the middle of the No. 6 sliding plate 43; an internal thread structure is provided on the inner wall of the No. 6 cylindrical structure 431; the outer wall of the No. 6 cylindrical structure 431 is sealedly connected to the inner wall of the No. 6 sliding groove;

[0069] The sixth sliding plate 43 divides the first box 42 into two chambers; one side of the sixth sliding plate 43 is the liquid accumulation chamber; the other side of the sixth sliding plate 43 is the cleaning liquid chamber;

[0070] The end surface of one end of the No. 1 box body 42 is connected with the No. 1 check valve 44 and the No. 2 check valve 45; the end surface of the other end of the No. 1 box body 42 is connected with the No. 3 check valve 46 and the No. 4 check valve 47; the inlet end of the No. 1 check valve 44 is fixed and connected with the conduit 3; the outflow end of the No. 1 check valve 44 is connected with the liquid accumulation chamber; the inlet end of the No. 2 check valve 45 is connected with the liquid accumulation chamber; the outflow end of the No. 2 check valve 45 is connected with the liquid storage tank 41; the inlet end of the No. 3 check valve 46 is connected with the cleaning liquid chamber; the outflow end of the No. 3 check valve 46 is fixed and connected with the flushing pipe 2; the inlet end of the No. 4 check valve 47 is connected with the external air; the outflow end of the No. 4 check valve 47 is connected with the cleaning liquid chamber;

[0071] The upper end of the liquid storage tank 41 is rotatably connected to the No. 1 connecting shaft 48; the end of the No. 1 connecting shaft 48 is provided with an external thread structure 481; the external thread structure 481 is abutted against the No. 6 cylindrical structure 431; the external thread structure 481 is threadedly connected with the internal thread structure; the upper end of the liquid storage tank 41 is connected to the driving member 49; the driving member 49 is used to drive the No. 1 connecting shaft 48 to rotate.

[0072] During drainage, the driving member 49 drives the No. 1 connecting shaft 48 to rotate forward, drives the No. 6 tubular structure 431 to move, drives the No. 6 sliding plate 43 to move, increases the volume of the fluid accumulation chamber, reduces the pressure of the fluid accumulation chamber, generates suction on the fluid accumulated in the breast, and makes the fluid accumulated pass through the drainage tube 1, the No. 1 tubular structure 612, the No. 3 tubular structure 632, the catheter 3, and the No. 1 one-way valve 44 into the fluid accumulation chamber (in this process, the height of the cleaning liquid is lower than the height of the No. 3 one-way valve 46), then the driving member 49 drives the No. 1 connecting shaft 48 to rotate reversely, drives the No. 6 sliding plate 43 to move reversely, reduces the volume of the fluid accumulation chamber, increases the pressure of the fluid accumulation chamber, makes the fluid accumulated pass through the No. 2 one-way valve 45 into the liquid storage tank 41, and through the reciprocating movement of the No. 6 sliding plate 43, the breast fluid is continuously drained. Drain into the fluid accumulation chamber, and transfer the accumulated fluid in the fluid accumulation chamber to the fluid storage tank 41; when flushing the catheter 3, the driving member 49 causes the No. 1 connecting shaft 48 to rotate in the positive direction, so that the No. 6 sliding plate 43 moves toward the side of the No. 3 one-way valve 46, thereby increasing the pressure in the cleaning liquid chamber. When the height of the cleaning liquid is higher than the height of the No. 3 one-way valve 46, the cleaning liquid passes through the No. 3 one-way valve 46 and enters into the flushing pipe 2, passes through the flushing pipe 2, the No. 4 tubular structure 731, the No. 5 tubular structure 732, the No. 5 through hole 7321, enters between the No. 3 seal 65 and the No. 2 seal 64, and then passes through the No. 2 through hole 643 to enter between the No. 2 seal 64 and the No. 1 seal 63, and enters into the catheter 3 through the No. 3 tubular structure 632 to flush the sediment in the catheter 3.

[0073] The third limiting member 71 is spherical.

[0074] The No. 3 limit piece 71 is spherical and can rotate in the No. 3 connecting groove 701. The No. 3 limit piece 71 can roll along the inner wall of the No. 1 connecting tube 61, thereby reducing the friction between the No. 3 limit piece 71 and the inner wall of the No. 1 connecting tube 61, reducing the probability of local protrusions on the inner wall of the No. 1 connecting tube 61, reducing the probability of the No. 3 limit piece 71 being stuck by the local protrusions, and improving the reliability of the movement of the No. 3 limit piece 71.

[0075] A No. 1 frame 512 and a No. 2 frame 513 are provided in the side wall of the connecting tube 51; the No. 1 frame 512 and the No. 2 frame 513 are arranged at intervals along the axial direction of the connecting tube 51; the No. 1 frame 512 and the No. 2 frame 513 are arranged on both sides of the cleaning part 511; the No. 1 frame 512 and the No. 2 frame 513 are both fixedly connected to the side wall of the connecting tube 51; the No. 1 frame 512 and the No. 2 frame 513 are both spiral structures made of metal wire.

[0076] The first frame 512 and the second frame 513 restrict the side wall of the connecting pipe 51 , and only the side wall of the cleaning portion 511 expands outward, thereby ensuring the expansion degree of the cleaning portion 511 and improving the sediment removal effect in the drainage pipe 1 .

[0077] A third frame 12 is provided on the side wall of the drainage tube 1; the third frame 12 is fixedly connected to the side wall of the drainage tube; the third frame 12 is a spiral structure made of metal wire.

[0078] The third frame 12 supports the side wall of the drainage tube 1, thereby reducing the probability of the side wall of the drainage tube 1 becoming deflated and reducing the probability of the drainage tube 1 being blocked.

[0079] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A post-breast surgery drainage device, characterized in that: It comprises a drainage tube (1), a flushing tube (2), a catheter (3), a drainage and flushing mechanism (4), a cleaning mechanism (5) and a connecting mechanism (6); One end of the drainage tube (1) is provided with an insertion portion (11); the other end of the drainage tube (1) is connected to the connecting mechanism (6); the connecting mechanism (6) and the drainage and flushing mechanism (4) are connected via the catheter (3); the connecting mechanism (6) and the drainage and flushing mechanism (4) are connected via the flushing tube (2); the drainage and flushing mechanism (4) is used to suck the accumulated fluid around the insertion portion (11); the drainage and flushing mechanism (4) is used to flush the sediment in the catheter (3); and the cleaning mechanism (5) is used to clean the sediment in the drainage tube (1).

2. The postoperative drainage device for breast effusion according to claim 1, characterized in that: The connecting mechanism (6) comprises a No. 1 connecting tube (61), a No. 2 blocking member (62), a No. 1 sealing member (63), a No. 2 sealing member (64), a No. 3 sealing member (65), a No. 1 connecting plate (66), a No. 1 connecting member (67), a No. 2 elastic member (68), a No. 2 magnet (69), a No. 3 sliding member (70), a No. 3 limiting member (71), a No. 3 elastic member (72), a No. 2 connecting plate (73), a No. 3 connecting plate (74), a No. 3 magnet (75), a No. 2 connecting member (76) and a No. 1 elastic member (77); A No. 1 opening (611) is symmetrically provided on the side wall of the No. 1 connecting tube (61); a No. 1 tubular structure (612) and a No. 2 tubular structure (613) are symmetrically provided on the side wall of the No. 1 connecting tube (61); one of the No. 1 openings (611) is in communication with the No. 1 tubular structure (612); the other No. 1 opening (611) is in communication with the No. 2 tubular structure (613); the No. 1 tubular structure (612) is detachably connected to the drainage tube (1); the No. 2 tubular structure (613) is detachably connected to the No. 2 blocking member (62); The No. 1 sealing member (63), the No. 2 sealing member (64) and the No. 3 sealing member (65) are sequentially arranged in the No. 1 connecting tube (61) from bottom to top; the outer walls of the No. 1 sealing member (63), the No. 2 sealing member (64) and the No. 3 sealing member (65) are all slidably connected to the inner wall of the No. 1 connecting tube (61); the outer walls of the No. 2 sealing member (64) and the No. 3 sealing member (65) are all sealingly connected to the inner wall of the No. 1 connecting tube (61); The lower end of the No. 1 sealing member (63) is provided with a No. 1 tubular structure (631); the lower end of the No. 1 tubular structure (631) is fixedly connected to the No. 1 connecting plate (66); the No. 1 connecting plate (66) is provided with a No. 1 limiting portion (661); the No. 1 connecting member (67) is disposed outside the No. 1 connecting plate (66); the No. 1 connecting member (67) is threadedly connected to the No. 1 connecting tube (61); the lower end of the No. 1 sealing member (63) is provided with a No. 3 tubular structure (632); the No. 3 tubular structure (632) is detachably connected to the conduit (3); A No. 2 guide structure (641) is symmetrically provided on the lower end surface of the No. 2 seal (64); the No. 2 guide structure (641) is slidably connected to the No. 1 seal (63); a No. 2 tubular structure (642) is provided at the lower end of the No. 2 guide structure (641); the No. 2 elastic member (68) is arranged inside the No. 2 tubular structure (642); the upper end of the No. 2 elastic member (68) abuts inside the No. 2 tubular structure (642); the lower end of the No. 2 elastic member (68) abuts against the No. 1 connecting plate (66); the upper end of the No. 2 seal (64) is fixedly connected to the No. 2 magnet (69); the No. 2 through holes (643) are symmetrically provided on the No. 2 seal (64); A No. 3 sliding groove (651) is provided in the middle of the No. 3 sealing member (65); a No. 3 mounting groove (652) is symmetrically provided on the No. 3 sealing member (65); the No. 3 mounting groove (652) is slidably connected to the No. 3 sliding member (70); a No. 3 connecting groove (701) is provided at one end of the No. 3 sliding member (70); the No. 3 limiting member (71) is connected in the No. 3 connecting groove (701); the No. 3 elastic member (72) is provided at the other end of the No. 3 sliding member (70); one end of the No. 3 elastic member (72) abuts against the No. 3 sliding member; the other end of the No. 3 elastic member (72) abuts against the bottom surface of the No. 3 mounting groove (652); A No. 1 limiting structure (614) is provided at the upper end of the No. 1 connecting tube (61); a No. 1 mounting groove (615) is provided on the No. 1 limiting structure (614); a No. 4 tubular structure (731) is provided at one end of the No. 2 connecting plate (73); the No. 4 tubular structure (731) is detachably connected to the flushing pipe (2); a No. 5 tubular structure (732) is provided at the other end of the No. 2 connecting plate (73); and No. 5 through holes (7321) are evenly spaced on the side wall of the lower end of the No. 5 tubular structure (732); The No. 3 connecting plate (74) is disposed outside the No. 5 tubular structure (732); the No. 3 connecting plate (74) is provided with a No. 3 limiting portion (741); the lower end of the No. 3 connecting plate (74) is fixedly connected to the No. 3 magnet (75); the No. 2 connecting member (76) is disposed outside the No. 2 connecting plate (73); the No. 2 connecting member (76) is threadedly connected to the No. 1 connecting tube (61); the No. 1 elastic member (77) is arranged in the No. 1 mounting groove (615); the lower end of the No. 1 elastic member (77) abuts against the bottom surface of the No. 1 mounting groove (615); the upper end of the No. 1 elastic member (77) abuts against the No. 3 limiting portion (741).

3. The postoperative drainage device for breast effusion according to claim 2, characterized in that: The cleaning mechanism (5) comprises a connecting tube (51) and a syringe (52); one end of the connecting tube (51) is detachably connected to the syringe (52); the other end of the connecting tube (51) is provided with a cleaning portion (511); the side wall at the cleaning portion (511) is thinner than the side walls at other locations.

4. The postoperative drainage device for breast effusion according to claim 3, characterized in that: The drainage and flushing mechanism (4) comprises a liquid storage tank (41), a first tank body (42), a sixth sliding plate (43), a first check valve (44), a second check valve (45), a third check valve (46), a fourth check valve (47), a first connecting shaft (48) and a driving member (49); The top of the liquid storage tank (41) is fixedly connected to the No. 1 box body (42); both ends of the No. 1 box body (42) are closed; a No. 6 sliding groove is provided on the end surface of one end of the No. 1 box body (42); the No. 6 sliding plate (43) is connected inside the No. 1 box body (42); the outer wall of the No. 6 sliding plate (43) is slidably connected to the inner wall of the No. 1 box body (42); the outer wall of the No. 6 sliding plate (43) is sealedly connected to the inner wall of the No. 1 box body (42); a No. 6 cylindrical structure (431) is provided in the middle of the No. 6 sliding plate (43); an internal thread structure is provided on the inner wall of the No. 6 cylindrical structure (431); the outer wall of the No. 6 cylindrical structure (431) is sealedly connected to the inner wall of the No. 6 sliding groove; The sixth sliding plate (43) divides the first box (42) into two chambers; one side of the sixth sliding plate (43) is a liquid accumulation chamber; the other side of the sixth sliding plate (43) is a cleaning liquid chamber; The first check valve (44) and the second check valve (45) are connected to the end surface of one end of the first box (42); the third check valve (46) and the fourth check valve (47) are connected to the end surface of the other end of the first box (42); the inlet end of the first check valve (44) is fixed to and communicated with the conduit (3); the outlet end of the first check valve (44) is communicated with the liquid accumulation chamber; the second check valve (46) is connected to the end surface of the other end of the first box (42); the outlet end of the first check valve (44) is connected to the liquid accumulation chamber; the outlet end of the second check valve (46) is connected to the liquid accumulation chamber; ... 5) is communicated with the liquid accumulation chamber; the outflow end of the No. 2 one-way valve (45) is communicated with the liquid storage tank (41); the inlet end of the No. 3 one-way valve (46) is communicated with the cleaning liquid chamber; the outflow end of the No. 3 one-way valve (46) is fixed to and communicated with the flushing pipe (2); the inlet end of the No. 4 one-way valve (47) is communicated with the external air; the outflow end of the No. 4 one-way valve (47) is communicated with the cleaning liquid chamber; The upper end of the liquid storage tank (41) is rotatably connected to the No. 1 connecting shaft (48); the end of the No. 1 connecting shaft (48) is provided with an external thread structure (481); the external thread structure (481) is in contact with the No. 6 cylindrical structure (431); the external thread structure (481) is threadedly connected to the internal thread structure; the upper end of the liquid storage tank (41) is connected to the driving member (49); the driving member (49) is used to drive the No. 1 connecting shaft (48) to rotate.

5. The postoperative drainage device for effusion after breast surgery according to claim 4, characterized in that: The third limiting member (71) is spherical.

6. The postoperative drainage device for effusion after breast surgery according to claim 5, characterized in that: A first frame (512) and a second frame (513) are provided in the side wall of the connecting tube (51); the first frame (512) and the second frame (513) are arranged at intervals along the axial direction of the connecting tube (51); the first frame (512) and the second frame (513) are arranged on both sides of the cleaning part (511); the first frame (512) and the second frame (513) are both fixedly connected to the side wall of the connecting tube (51); the first frame (512) and the second frame (513) are both spiral structures made of metal wire.

7. The post-breast surgery fluid drainage device according to claim 6, characterized in that: A third frame (12) is provided on the side wall of the drainage pipe (1); the third frame (12) is fixedly connected to the side wall of the drainage pipe; the third frame (12) is a spiral structure made of metal wire.

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