A cardiovascular medicine drainage device and method

Abstract

The application belongs to the technical field of medical apparatus and instruments, and particularly relates to a drainage device and method for cardiovascular internal medicine, which aims at the problem that the existing device needs medical staff to continuously check whether a liquid collecting bottle is full, which may cause safety hazards due to untimely replacement. The present application discloses a drainage device and method for cardiovascular internal medicine, which can automatically judge whether the body fluid in the liquid collecting bottle is full by detecting the gravity change of the liquid collecting bottle through a pressure sensor, thereby solving the problem that the existing device requires medical staff to continuously check whether the liquid collecting bottle is full and causing safety hazards due to untimely replacement of the full bottle, reducing the workload while ensuring the safety of patients during the drainage operation. Meanwhile, after the liquid collecting bottle is full, the drainage self-switching assembly rapidly performs communication switching to the next liquid collecting bottle, so that long-time drainage work can be adapted, and the work efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a drainage device and method for cardiovascular medicine. Background Technology

[0002] Cardiovascular medicine is a medical specialty that focuses on the diagnosis and treatment of heart and vascular diseases. Cardiovascular drainage devices are medical devices used to drain abnormally accumulated fluid from the pericardial cavity, pleural cavity, or heart. Their function is to rapidly decompress and relieve symptoms such as cardiac tamponade or dyspnea, prevent complications, and promote recovery. They are mainly used in the rescue and treatment of critical and severe conditions such as cardiac tamponade, massive pericardial effusion, mediastinal effusion after cardiac surgery, and myocardial infarction complicated by cardiac rupture.

[0003] In cardiovascular medicine, drainage devices are often used to drain fluid from the subcutaneous tissue or body cavities of patients. However, when patients have a large amount of fluid or require long-term drainage, existing devices require medical staff to continuously check whether the collection bottle is full. This not only increases the workload, but also easily leads to safety hazards due to failure to replace the full bottle in time. Summary of the Invention

[0004] This invention discloses a drainage device and method for cardiovascular medicine, aiming to solve the technical problem that existing devices in the background art require medical staff to continuously check whether the collection bottle is full, which not only increases the workload, but may also cause safety hazards due to untimely replacement.

[0005] This invention proposes a drainage device for cardiovascular medicine, comprising a drainage chamber, a handrail fixedly connected to the upper side of the drainage chamber, multiple rotating doors evenly spaced on the outer wall of the drainage chamber, multiple casters evenly spaced on the lower side of the drainage chamber, a negative pressure drainer on the upper side of the drainage chamber, a drainage tube inserted into the upper opening of the negative pressure drainer, a flow sensor on the outer wall of the end of the drainage tube near the negative pressure drainer, an anti-clogging component on the drainage tube, and a drainage self-switching component inside the drainage chamber, the drainage self-switching component comprising a switching chamber frame fixedly connected to the lower inner wall of the drainage chamber, two sealing rings evenly spaced fixedly connected to the inner wall of the switching chamber frame, the inner walls of the two sealing rings connected to the same single-hole buffer chamber via bearings, one end of a fluid-passing tube inserted into the upper opening of the single-hole buffer chamber, and the other end of the fluid-passing tube passing through the upper side of the drainage chamber and inserted into the interior of the negative pressure drainer.

[0006] In a preferred embodiment, the single-hole buffer chamber has a liquid outlet hole on its lower side, and a driven ratchet is fixedly connected to the outer wall of the single-hole buffer chamber. Two fixed plates are fixedly connected to the outer wall of the switching chamber frame. Rotation holes are opened on opposite sides of the two fixed plates. The same rotating shaft is connected inside the two rotation holes through bearings. A switching motor is fixedly connected to the upper side of one of the fixed plates. The drive end of the switching motor is connected to one end of the rotating shaft through a coupling. A brake ratchet is fixedly connected to the outer wall of the rotating shaft. The brake ratchet passes through a corresponding through slot opened in the switching chamber frame and engages with the driven ratchet.

[0007] In a preferred embodiment, the lower side of the switching chamber rack is provided with multiple connecting holes at equal intervals, and fixed pipes are fixedly connected inside the multiple connecting holes. Each fixed pipe can be individually connected to its interior through the liquid outlet hole opened in the single-hole buffer chamber. The lower outer walls of the multiple fixed pipes are slidably connected with sliding groove sleeves, and the lower outer walls of the multiple sliding groove sleeves are respectively fitted with lifting plates.

[0008] In a preferred embodiment, a plurality of sliding cylinders are fixedly connected at equal intervals on the lower side of the switching compartment frame. Sliding rods are slidably connected inside the plurality of sliding cylinders. The other end of the plurality of sliding rods away from the corresponding sliding cylinders is fixedly connected to the upper side of the corresponding lifting plate. Compression springs are provided on the outer walls of the plurality of sliding rods. One end of the plurality of compression springs is fixedly connected to the corresponding sliding cylinders, and the other end of the plurality of compression springs is fixedly connected to the corresponding lifting plates.

[0009] In a preferred embodiment, the lower inner wall of the drainage chamber is fixedly connected with detection bases at equal intervals, and each detection base has a detection groove on its upper side. Each detection groove has a sliding base plate slidably connected inside, and each sliding base plate has a hammer fixedly connected to its lower side.

[0010] In a preferred embodiment, one end of a detection spring is fixedly connected to the lower side of each of the plurality of sliding base plates, and the other end of the detection spring is fixedly connected to a detection base. Pressure sensors are respectively installed inside the detection slots opened in the plurality of detection bases, and the plurality of hammers are respectively located directly above the force-bearing end of the corresponding pressure sensor.

[0011] In a preferred embodiment, a collection bottle is placed on the upper side of each of the sliding base plates, and the inlet end of each collection bottle is located inside the corresponding sliding sleeve. A crescent-shaped fixing ring is fixedly connected to the upper side of each of the detection bases. One end of each crescent-shaped fixing ring is connected to a crescent-shaped rotating ring through a bearing. A locking hole is opened on the upper side of the other end of each of the crescent-shaped fixing rings. A locking rod is slidably connected inside each of the locking holes. A locking spring is sleeved on the outer wall of each locking rod. One end of each locking spring is fixedly connected to the upper inner wall of the corresponding locking rod, and the other end of each locking spring is fixedly connected to the corresponding crescent-shaped fixing ring.

[0012] In a preferred embodiment, the anti-clogging component includes a water tank, which is fixedly connected to the upper side of the drainage chamber. One end of a flushing water pipe is inserted into the upper side of the water tank, and the other end of the flushing water pipe is inserted into the interior of the drainage pipe near the liquid inlet. A water pump is installed near the outer wall of the water tank on the flushing water pipe, and an alarm is installed on the upper side of the drainage chamber.

[0013] In a preferred embodiment, a setting frame is provided on the outer wall of the drainage tube near the liquid inlet end. Two extrusion plates are slidably connected at equal intervals inside the setting frame. The two extrusion plates are respectively connected to one end of an extrusion screw through a bearing on the side that is far away from each other. The other end of the extrusion screw passes through the inner wall of the setting frame and is located outside it.

[0014] A method of using a cardiovascular drainage device, comprising the following steps: Step 1: Before draining the patient, place multiple collection bottles inside the drainage chamber. Step 2: After placing multiple collection bottles, connect one of the collection bottles using the self-switching drainage component and begin the drainage operation; Step 3: During drainage, the patient's body fluids flow into the drainage tube through the negative pressure drainage device. At the same time, the anti-blockage component is used to prevent the drainage tube from becoming blocked. Step 4: When a single collection bottle is full of body fluid, the drainage switching component will run again to switch the connected collection bottles.

[0015] As can be seen from the above, the drainage device for cardiovascular medicine provided by the present invention can automatically determine whether the fluid in the collection bottle is full by detecting the gravity change of the collection bottle through a pressure sensor. This solves the problem of existing devices requiring medical staff to continuously check whether the collection bottle is full and the safety hazards caused by failure to replace the full bottle in time. It reduces the workload while ensuring the safety of patients during drainage operations. At the same time, after the collection bottle is full, the drainage self-switching component can quickly connect and switch to the next collection bottle, thus adapting to long-term drainage work and greatly improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a drainage device for cardiovascular medicine proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the drainage chamber of a drainage device for cardiovascular medicine proposed in this invention; Figure 3 This is a side view of the drainage self-switching component of a drainage device for cardiovascular medicine proposed in this invention; Figure 4 This is an exploded structural diagram of the detection base in the drainage self-switching component of a drainage device for cardiovascular medicine proposed in this invention; Figure 5 This is a schematic diagram of the disassembled structure of the groove sleeve in the drainage self-switching component of a drainage device for cardiovascular medicine proposed in this invention; Figure 6 This is a schematic cross-sectional view of the internal structure of the switching chamber frame in the drainage self-switching assembly of a drainage device for cardiovascular medicine proposed in this invention; Figure 7 This is a schematic diagram of the overall structure of the anti-blockage component of a drainage device for cardiovascular medicine proposed in this invention; Figure 8 This is a schematic diagram of the frame structure in the drainage self-switching component of a drainage device for cardiovascular medicine proposed in this invention.

[0017] In the diagram: 1. Handrail; 2. Revolving door; 3. Drainage self-switching assembly; 301. Detection base; 302. Collection bottle; 303. Fixing plate; 304. Switching compartment rack; 305. Liquid passage pipe; 306. Fixing pipe; 307. Slide sleeve; 308. Locking rod; 309. Crescent-shaped fixing ring; 310. Crescent-shaped rotating ring; 311. Lifting plate; 312. Compression spring; 313. Slide cylinder; 314. Locking spring; 315. Sliding base plate; 316. Detection spring; 317. Pressure... 318 Force sensor; 319 Hammer; 320 Sliding rod; 321 Driven ratchet; 322 Single-hole buffer chamber; 323 Sealing ring; 324 Rotating shaft; 325 Brake ratchet; 326 Switching motor; 4. Caster wheel; 5. Drainage chamber; 6. Negative pressure drainer; 7. Drainage pipe; 8. Anti-clogging component; 801 Flushing water pipe; 802 Water pump; 803 Water tank; 804 Alarm; 805 Setting frame; 806 Extrusion screw; 807 Extrusion plate; 9. Flow sensor. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The drainage device for cardiovascular medicine disclosed in this invention is mainly used in scenarios where existing devices require medical staff to continuously check whether the collection bottle is full, which not only increases the workload but may also lead to safety hazards due to untimely replacement.

[0020] Reference Figures 1-6A drainage device for cardiovascular medicine includes a drainage chamber 5, a handrail 1 fixedly connected to the upper side of the drainage chamber 5, multiple rotating doors 2 evenly spaced on the outer wall of the drainage chamber 5, multiple casters 4 evenly spaced on the lower side of the drainage chamber 5, a negative pressure drainage device 6 installed on the upper side of the drainage chamber 5, a drainage tube 7 inserted into the upper opening of the negative pressure drainage device 6, a flow sensor 9 installed on the outer wall of the end of the drainage tube 7 near the negative pressure drainage device 6, and an anti-clogging component 8 installed on the drainage tube 7. The drainage chamber 5 is equipped with... The device is equipped with a self-switching drainage component 3, which includes a switching chamber frame 304. The switching chamber frame 304 is fixedly connected to the lower inner wall of the drainage chamber 5. Two sealing rings 322 are fixedly connected at equal intervals to the inner wall of the switching chamber frame 304. The inner walls of the two sealing rings 322 are connected to the same single-hole buffer chamber 321 through a bearing. One end of a liquid passage pipe 305 is inserted into the upper opening of the single-hole buffer chamber 321. The other end of the liquid passage pipe 305 passes through the upper side of the drainage chamber 5 and is inserted into the interior of the negative pressure drainage device 6.

[0021] In this invention, a liquid outlet is provided on the lower side of the single-hole buffer chamber 321. A driven ratchet 320 is fixedly connected to the outer wall of the single-hole buffer chamber 321. Two fixed plates 303 are fixedly connected at equal intervals on the outer wall of the switching chamber frame 304. Rotation holes are provided on opposite sides of the two fixed plates 303. The same rotating shaft 323 is connected inside the two rotating holes through bearings. A switching motor 325 is fixedly connected to the upper side of one of the fixed plates 303. The drive end of the switching motor 325 is connected to one end of the rotating shaft 323 through a coupling. A brake ratchet 324 is fixedly connected to the outer wall of the rotating shaft 323. The brake ratchet 324 passes through the corresponding through slot opened in the switching chamber frame 304 and meshes with the driven ratchet 320.

[0022] In this invention, the lower side of the switching chamber rack 304 is provided with multiple connecting holes at equal intervals. Each of the multiple connecting holes is fixedly connected to a fixed pipe 306. Each fixed pipe 306 can be individually connected to its interior through the liquid outlet hole opened in the single-hole buffer chamber 321. The lower outer wall of the multiple fixed pipes 306 is slidably connected to a sliding groove sleeve 307. The lower outer wall of the multiple sliding groove sleeves 307 is respectively fitted with a lifting plate 311.

[0023] In this invention, multiple sliding cylinders 313 are fixedly connected at equal intervals on the lower side of the switching rack 304. Sliding rods 319 are slidably connected inside the multiple sliding cylinders 313. The other ends of the multiple sliding rods 319 away from the corresponding sliding cylinders 313 are fixedly connected to the upper side of the corresponding lifting plates 311. Compression springs 312 are provided on the outer walls of the multiple sliding rods 319. One end of the multiple compression springs 312 is fixedly connected to the corresponding sliding cylinders 313, and the other end of the multiple compression springs 312 is fixedly connected to the corresponding lifting plates 311.

[0024] In this invention, detection bases 301 are fixedly connected at equal intervals to the lower inner wall of the drainage chamber 5. Detection grooves are respectively opened on the upper side of the multiple detection bases 301. Sliding base plates 315 are slidably connected inside the multiple detection grooves. Hammers 318 are fixedly connected to the lower side of the multiple sliding base plates 315.

[0025] In this invention, one end of a detection spring 316 is fixedly connected to the lower side of a plurality of sliding base plates 315, and the other end of the detection spring 316 is fixedly connected to a detection base 301. Pressure sensors 317 are respectively installed inside the detection slots opened in the plurality of detection bases 301, and a plurality of hammers 318 are respectively located directly above the force-bearing end of the corresponding pressure sensor 317.

[0026] In this invention, a collection bottle 302 is placed on the upper side of a plurality of sliding base plates 315, and the liquid inlet end of the plurality of collection bottles 302 is located inside the corresponding sliding sleeve 307. A crescent-shaped fixing ring 309 is fixedly connected to the upper side of a plurality of detection bases 301. One end of the plurality of crescent-shaped fixing rings 309 is connected to a crescent-shaped rotating ring 310 through a bearing. A locking hole is opened on the upper side of the other end of the plurality of crescent-shaped fixing rings 309. A locking rod 308 is slidably connected inside the plurality of locking holes. A locking spring 314 is sleeved on the outer wall of the plurality of locking rods 308. One end of the plurality of locking springs 314 is fixedly connected to the upper inner wall of the corresponding locking rod 308, and the other end of the plurality of locking springs 314 is fixedly connected to the corresponding crescent-shaped fixing ring 309.

[0027] Specifically, before draining the patient, the locking lever 308 is pulled to move upward against the locking spring 314, thereby releasing the lock on the crescent-shaped rotating ring 310. Then, the crescent-shaped rotating ring 310 is rotated to expose the sliding base plate 315. Subsequently, the lifting plate 311 drives the sliding sleeve 307 to move upward against the compression spring 312. Then, the collection bottle 302 is placed on the sliding base plate 315 while the lifting plate 311 is released. Under the action of the compression spring 312, the sliding sleeve 307 is fitted onto the outer wall of the inlet end of the collection bottle 302, completing the connection. When a single collection bottle 302 is full of body fluid, the weight of the single collection bottle 302 increases with the continuous accumulation of body fluid. As the pressure increases, the sliding base plate 315 overcomes the detection spring 316 and descends, causing the hammer 318 to squeeze the pressure sensor 317. When the pressure sensor 317 reaches the set threshold, it indicates that the collection bottle 302 is full. Subsequently, the switching motor 325 drives the rotating shaft 323 to rotate the brake ratchet 324. Since the brake ratchet 324 meshes with the driven ratchet 320, the liquid outlet of the single-hole buffer chamber 321 rotates to the top of the next empty collection bottle 302 and connects with it under the action of the switching motor 325. In this process, the pressure sensor 317, the switching motor 325 and the control unit form a closed-loop linkage to realize a fully automatic process from detection to switching.

[0028] In specific application scenarios, the opening and closing locking of the crescent-shaped fixing ring 309 and the crescent-shaped rotating ring 310 improves the installation efficiency of the collection bottle 302 while ensuring its stability during drainage operations. The mobility of the sliding sleeve 307, combined with the action of the compression spring 312, ensures that the sliding sleeve 307 is always fitted onto the outer wall of the liquid inlet end of the collection bottle 302, preventing discontinuity and leakage during subsequent operations, thus avoiding contamination caused by leakage. During this process, the pressure sensor 3... The gravity change detection of the 17 collection bottles 302 can automatically determine whether the body fluid inside the collection bottle 302 is full, thereby solving the problem that the existing device requires medical staff to continuously check whether the collection bottle 302 is full and the safety hazards caused by failure to replace the full bottle in time. It reduces the workload while ensuring the safety of patients during drainage operations. At the same time, after the collection bottle 302 is full, it can quickly switch to the next collection bottle 302 through the drainage self-switching component 3, so as to adapt to long-term drainage work and greatly improve work efficiency.

[0029] Reference Figure 1 , Figure 7 and Figure 8In a preferred embodiment, the anti-clogging component 8 includes a water tank 803, which is fixedly connected to the upper side of the drainage chamber 5. One end of a flushing water pipe 801 is inserted into the upper side of the water tank 803, and the other end of the flushing water pipe 801 is inserted into the drainage pipe 7 near the liquid inlet. A water pump 802 is provided near the outer wall of the flushing water pipe 801, and an alarm 804 is provided on the upper side of the drainage chamber 5.

[0030] In this invention, a setting frame 805 is provided on the outer wall of the drainage tube 7 near the liquid inlet end. Two extrusion plates 807 are slidably connected at equal intervals inside the setting frame 805. One end of an extrusion screw 806 is connected to the side of the two extrusion plates 807 that is far away from each other through a bearing. The other end of the extrusion screw 806 passes through the inner wall of the setting frame 805 and is located outside it.

[0031] Specifically, during drainage, when the flow sensor 9 detects an abnormal blockage in the drainage tube 7, it triggers the alarm 804. Subsequently, medical staff rotate the two squeezing screws 806 to drive the two squeezing plates 807 to seal the inlet end of the drainage tube 7. Then, the water pump 802 pumps water from the water tank 803 into the drainage tube 7 through the flushing pipe 801 to flush out the blockage and resolve the blockage. In this process, the flow sensor 9 acts as the detection unit, the alarm 804 acts as the prompting unit, and the water pump 802 acts as the execution unit. The three work together through the control unit to achieve automatic alarm and semi-automatic flushing for blockage.

[0032] In specific application scenarios, the inlet end of the drainage tube 7 is sealed by two squeezing plates 807 to prevent the diversion of body fluids when the flushing water pipe 801 is flushing, which greatly reduces the safety risks to patients.

[0033] A method of using a cardiovascular drainage device, comprising the following steps: Step 1: Before draining the patient, multiple collection bottles 302 are placed inside the drainage chamber 5. (During this process, medical staff first open multiple rotating doors 2, then pull the locking lever 308 to move it upwards against the locking spring 314, thereby releasing the lock on the crescent-shaped rotating ring 310. Then, the crescent-shaped rotating ring 310 is rotated to expose the sliding base plate 315. The opening and closing locking of the crescent-shaped fixing ring 309 and the crescent-shaped rotating ring 310 improves the installation efficiency of the collection bottles 302 while ensuring the stability of the collection bottles 302 during drainage operations.) The lifting plate 311 causes the sliding sleeve 307 to move upward against the force of the compression spring 312. Then, while placing the collection bottle 302 on the sliding base plate 315, the lifting plate 311 is released. Under the action of the compression spring 312, the sliding sleeve 307 is fitted onto the outer wall of the liquid inlet end of the collection bottle 302 to complete the connection. During this process, the mobility of the sliding sleeve 307 combined with the action of the compression spring 312 ensures that the sliding sleeve 307 is always fitted onto the outer wall of the liquid inlet end of the collection bottle 302, avoiding disconnection and leakage during subsequent operations, thus preventing pollution caused by leakage. Step 2: After placing multiple collection bottles 302, connect one of the collection bottles 302 through the self-switching component 3 and start the drainage operation. Step 3: During drainage, under the action of the negative pressure drainage device 6, the patient's body fluid flows into the drainage tube 7 (during this process, the flow sensor 9 monitors the inside of the drainage tube 7 in real time under the action of the control unit). Then, it enters the single-hole buffer chamber 321 through the fluid inlet tube 305, and finally enters the connected collection bottle 302 for collection (during this process, the body fluid enters the single-hole buffer chamber 321 through the fluid inlet tube 305. Since the single-hole buffer chamber 321 has only one outlet, when connected to one collection bottle 302, the other collection bottles 302 are in a closed state. Then, the body fluid flows into the corresponding fixed tube 306 through the outlet, then through the corresponding sliding sleeve 307, and finally into the corresponding collection bottle 302). Simultaneously, anti-blockage measures are implemented. The use of component 8 prevents blockage of drainage tube 7 (this process mainly consists of monitoring, alarm, and emergency handling, which systematizes the three processes to reflect the linkage between rapid response and safety assurance. Specifically, when the flow sensor 9 detects an abnormal blockage in drainage tube 7, it triggers the alarm 804. Then, medical staff rotate the two squeezing screws 806 to drive the two squeezing plates 807 to seal the inlet of drainage tube 7. Subsequently, water pump 802 pumps water from the water tank 803 into the drainage tube 7 through the flushing water pipe 801 to flush out the blockage, thereby solving the blockage problem. The sealing of the inlet of drainage tube 7 by the two squeezing plates 807 prevents the diversion of body fluids during flushing by the flushing water pipe 801, greatly reducing the safety risks to patients). Step 4: When a single collection bottle 302 is full of body fluid, the drainage switching component 3 operates again, thereby switching the connected collection bottles 302. (This process mainly consists of a detection stage, a judgment and instruction stage, an execution stage, and a prompting stage. This complete process is clearly described as an automated linkage chain. Specifically, as the weight of a single collection bottle 302 continuously increases due to the accumulation of body fluid, the sliding base plate 315 overcomes the detection spring 316 and descends, causing the hammer 318 to squeeze the pressure sensor 317. When the pressure sensor 317 reaches the set threshold, it proves that the collection bottle 302 is full. Subsequently, the switching motor 325 drives the rotating shaft 323 to rotate the brake ratchet 324. Since the brake ratchet 324 meshes with the driven ratchet 320, the liquid is discharged from the single-hole buffer chamber 321 under the action of the switching motor 325.) The orifice rotates to the top of the next empty collection bottle 302 and connects with it. During this process, the pressure sensor 317 detects the change in gravity of the collection bottle 302, which can automatically determine whether the body fluid inside the collection bottle 302 is full. This solves the problem of existing devices requiring medical staff to continuously check whether the collection bottle 302 is full and the safety hazards caused by failure to replace the full bottle in time. It reduces the workload while ensuring the safety of patients during drainage operations. At the same time, after the collection bottle 302 is full, the drainage self-switching component 3 quickly connects and switches to the next collection bottle 302, which can adapt to long-term drainage work and greatly improves work efficiency. The full bottle detection and switching process is completely completed by the linkage of the pressure sensor 317, the control unit and the switching motor 325 without manual intervention. After switching, the alarm 804 can be triggered to remind the patient to replace the full bottle.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drainage device for cardiovascular medicine, comprising a drainage chamber (5), characterized in that, A handrail (1) is fixedly connected to the upper side of the drainage chamber (5). Multiple rotating doors (2) are evenly spaced on the outer wall of the drainage chamber (5). Multiple casters (4) are evenly spaced on the lower side of the drainage chamber (5). A negative pressure drainage device (6) is installed on the upper side of the drainage chamber (5). A drainage tube (7) is inserted into the upper opening of the negative pressure drainage device (6). A flow sensor (9) is installed on the outer wall of the end of the drainage tube (7) near the negative pressure drainage device (6). An anti-clogging component (8) is installed on the drainage tube (7). A drainage self-switching group is installed inside the drainage chamber (5). The drainage self-switching assembly (3) includes a switching chamber frame (304), which is fixedly connected to the lower inner wall of the drainage chamber (5). Two sealing rings (322) are fixedly connected at equal intervals to the inner wall of the switching chamber frame (304). The inner walls of the two sealing rings (322) are connected to the same single-hole buffer chamber (321) through bearings. One end of a liquid-passing pipe (305) is inserted into the upper opening of the single-hole buffer chamber (321), and the other end of the liquid-passing pipe (305) passes through the upper side of the drainage chamber (5) and is inserted into the inside of the negative pressure drainage device (6).

2. The drainage device for cardiovascular medicine according to claim 1, characterized in that, The single-hole buffer chamber (321) has a liquid outlet hole on its lower side. A driven ratchet (320) is fixedly connected to the outer wall of the single-hole buffer chamber (321). Two fixed plates (303) are fixedly connected to the outer wall of the switching chamber frame (304). Rotation holes are opened on opposite sides of the two fixed plates (303). The same rotating shaft (323) is connected inside the two rotating holes through bearings. A switching motor (325) is fixedly connected to the upper side of one of the fixed plates (303). The drive end of the switching motor (325) is connected to one end of the rotating shaft (323) through a coupling. A brake ratchet (324) is fixedly connected to the outer wall of the rotating shaft (323). The brake ratchet (324) passes through the corresponding through slot opened in the switching chamber frame (304) and meshes with the driven ratchet (320).

3. A drainage device for cardiovascular medicine according to claim 2, characterized in that, The switching chamber rack (304) has multiple connecting holes at equal intervals on its lower side. Each connecting hole is fixedly connected to a fixed pipe (306). Each fixed pipe (306) can be connected to its interior through the liquid outlet hole of the single-hole buffer chamber (321). The lower outer walls of the multiple fixed pipes (306) are slidably connected to a sliding sleeve (307). The lower outer walls of the multiple sliding sleeves (307) are fitted with lifting plates (311).

4. A drainage device for cardiovascular medicine according to claim 3, characterized in that, The lower side of the switching rack (304) is fixedly connected with multiple sliding cylinders (313) at equal intervals. Sliding rods (319) are slidably connected inside the multiple sliding cylinders (313). The other end of the multiple sliding rods (319) away from the corresponding sliding cylinder (313) is fixedly connected to the upper side of the corresponding lifting plate (311). Compression springs (312) are provided on the outer wall of the multiple sliding rods (319). One end of the multiple compression springs (312) is fixedly connected to the corresponding sliding cylinder (313), and the other end of the multiple compression springs (312) is fixedly connected to the corresponding lifting plate (311).

5. A drainage device for cardiovascular medicine according to claim 4, characterized in that, The lower inner wall of the drainage chamber (5) is fixedly connected with a detection base (301) at equal intervals. The upper side of the multiple detection bases (301) is provided with a detection groove. The interior of the multiple detection grooves is slidably connected with a sliding base plate (315). The lower side of the multiple sliding base plates (315) is fixedly connected with a hammer (318).

6. A drainage device for cardiovascular medicine according to claim 5, characterized in that, The lower sides of the multiple sliding base plates (315) are respectively fixedly connected to one end of the detection spring (316), and the other end of the detection spring (316) is fixedly connected to the detection base (301). The detection slots opened in the multiple detection bases (301) are respectively equipped with pressure sensors (317), and multiple hammers (318) are respectively located directly above the force-bearing end of the corresponding pressure sensor (317).

7. A drainage device for cardiovascular medicine according to claim 6, characterized in that, A collection bottle (302) is placed on the upper side of each of the sliding base plates (315). The liquid inlet of each collection bottle (302) is located inside the corresponding sliding sleeve (307). A crescent-shaped fixing ring (309) is fixedly connected to the upper side of each of the detection bases (301). One end of each crescent-shaped fixing ring (309) is connected to a crescent-shaped rotating ring (310) through a bearing. A locking hole is opened on the upper side of the other end of each crescent-shaped fixing ring (309). A locking rod (308) is slidably connected inside each locking hole. A locking spring (314) is sleeved on the outer wall of each locking rod (308). One end of each locking spring (314) is fixedly connected to the upper inner wall of the corresponding locking rod (308). The other end of each locking spring (314) is fixedly connected to the corresponding crescent-shaped fixing ring (309).

8. A drainage device for cardiovascular medicine according to claim 7, characterized in that, The anti-clogging component (8) includes a water tank (803), which is fixedly connected to the upper side of the drainage chamber (5). One end of the flushing water pipe (801) is inserted into the upper side of the water tank (803), and the other end of the flushing water pipe (801) is inserted into the drainage pipe (7) near the liquid inlet. A water pump (802) is installed near the outer wall of the water tank (803) of the flushing water pipe (801), and an alarm (804) is installed on the upper side of the drainage chamber (5).

9. A drainage device for cardiovascular medicine according to claim 8, characterized in that, The drainage tube (7) is provided with a setting frame (805) near the outer wall of the liquid inlet end. Two extrusion plates (807) are slidably connected at equal intervals inside the setting frame (805). The two extrusion plates (807) are connected to one end of an extrusion screw (806) through bearings on the side away from each other. The other end of the extrusion screw (806) passes through the inner wall of the setting frame (805) and is located outside it.

10. A method of using a drainage device for cardiovascular medicine, comprising using a drainage device for cardiovascular medicine as described in claim 9, characterized in that, Includes the following steps: Step 1: Before draining the patient, place multiple collection bottles (302) inside the drainage chamber (5); Step 2: After placing multiple collection bottles (302), connect one of the collection bottles (302) through the self-switching component (3) and start the drainage operation; Step 3: During drainage, under the action of the negative pressure drainage device (6), the patient's body fluid flows through the negative pressure drainage device (6) into the interior of the drainage tube (7). At the same time as drainage, the use of the anti-blockage component (8) prevents the drainage tube (7) from becoming blocked. Step 4: When a single collection bottle (302) is full of body fluid, the drainage switching component (3) runs again, thereby switching the connected collection bottles (302).

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