A pericardiothoracic puncture and effusion drainage device

Abstract

The present invention relates to a pericardiothoracic puncture and effusion drainage device and method thereof, belonging to the technical field of medical puncture equipment. The device includes: a puncture mechanism and an effusion drainage mechanism, the effusion drainage mechanism includes: a sealing disk, on which a liquid inlet tube and a liquid outlet tube are penetrated, the liquid inlet tube is coupled to the puncture mechanism via a hose fluid, and the liquid outlet tube is used to couple to an external effusion storage container; a cylinder, which is rotationally coupled to the occluding disk and is provided with a first chamber and a second chamber; wherein the device is suitable for extracting and discharging effusion from the first chamber and the second chamber alternately by using the liquid inlet tube and the liquid outlet tube via the relative rotation of the occluding disk and the cylinder. In this way, uninterrupted fluid extraction can be achieved in the pericardiothoracic puncture and effusion drainage device.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to a pericardial thoracocentesis and effusion drainage device. Background Art

[0002] The pericardiopleural puncture and effusion drainage device is a medical device used for the diagnosis and treatment of pericardial and pleural effusions. It helps doctors drain the effusions in the pericardium and pleural cavity through puncture and drainage to relieve symptoms and improve respiratory and circulatory functions. The device is usually composed of a puncture needle, a drainage tube, a drainage bag, etc., and plays an important role in the treatment of diseases such as pericardial effusion and pleural effusion.

[0003] The traditional method is to extract pleural effusion through a puncture needle, which requires the use of a drainage tube and a syringe. However, in order to drain the extracted effusion, the syringe needs to be disassembled multiple times, which increases the complexity and time cost of the operation. Regarding this issue, a Chinese invention patent (publication number CN115814181A, publication date 2023-03-21) discloses a pericardiothoracic puncture and effusion drainage device, which relates to the field of medical care technology, including a main cavity, a puncture and drainage mechanism is arranged on the main cavity, and an effusion collection and processing mechanism is arranged on the left side of the puncture and drainage mechanism. The puncture and drainage mechanism includes a liquid extraction speed adjustment component and a pull-and-pull transfer component. A pull-and-pull transfer component is arranged on one side of the liquid extraction speed adjustment component. The liquid extraction speed adjustment component includes a partition, and an L-shaped blocking body is slidably connected to the surface of one side of the partition. Through the overall setting of the puncture and drainage mechanism, when extracting the effusion, there is no need to disassemble the syringe multiple times as in the traditional way. After disassembly, the effusion extracted from the syringe still needs to be discharged before the next extraction work can be carried out. The trouble of the traditional operation method is avoided to a large extent, and at the same time a lot of time can be saved, making an important contribution to the progress of the extraction, which is beneficial to the rescue of patients.

[0004] This prior art saves time and does not need to replace the fluid multiple times during extraction, can adjust the extraction speed according to different extraction environments, and can sterilize and disinfect the infected effusion in time when it is extracted. However, the structure of this prior art is relatively complex, and it is not convenient to repair and replace spare parts. Therefore, there is an urgent need for a pericardiothoracic puncture and effusion drainage device that can achieve the above functions and is easy to repair and replace spare parts. Moreover, in actual use, if there is an interruption in the extraction of fluid, it will cause great harm, so it is also necessary to achieve the function of uninterrupted extraction of fluid. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a pericardiothoracic puncture and fluid drainage device, which has the advantages of easy maintenance, replacement of spare parts, and uninterrupted fluid extraction, and at least partially solves the problems existing in the current technology.

[0006] According to a first aspect of the present disclosure, a pericardiothoracic puncture and effusion drainage device comprises a puncture mechanism and an effusion drainage mechanism, the effusion drainage mechanism comprising: an occluding disk, through which a liquid inlet tube and a liquid outlet tube are penetrated, the liquid inlet tube is coupled to the puncture mechanism via a hose fluid, and the liquid outlet tube is used to couple to an external effusion storage container; a barrel, which is rotationally coupled to the occluding disk and is provided with a first chamber and a second chamber; wherein the device is suitable for extracting and discharging effusion from the first chamber and the second chamber alternately by utilizing the liquid inlet tube and the liquid outlet tube via relative rotation of the occluding disk and the barrel.

[0007] In some embodiments, a first liquid inlet and a first liquid outlet are provided at one end of the first chamber, and a second liquid inlet and a second liquid outlet are provided at one end of the second chamber; the cylinder and the sealing disk can switch the pericardium and thoracocentesis and effusion drainage device to a first operating condition or a second operating condition by relative rotation; wherein in the first operating condition, the first liquid inlet is aligned with the liquid inlet tube, the first liquid outlet is fitted with the sealing disk, and the second liquid inlet is fitted with the sealing disk, and the second liquid outlet is aligned with the liquid outlet tube; and wherein in the second operating condition, the first liquid inlet is fitted with the sealing disk, the first liquid outlet is coupled with the liquid outlet tube, and the second liquid inlet is aligned with the liquid inlet tube, and the second liquid outlet is fitted with the sealing disk.

[0008] In some embodiments, the cylinder and the sealing disk can also switch to a third operating condition by relative rotation; in the third operating condition, the first liquid inlet, the first liquid outlet, the second liquid inlet and the second liquid outlet are all in contact with the sealing disk.

[0009] In some embodiments, a first piston and a second piston are respectively provided in the first chamber and the second chamber; a base is fixedly connected to the lower side of the sealing disk, a support wheel is fixedly connected to the base, and the support wheel is affixed to the lower side of the cylinder; the sealing disk is fixedly connected to a bracket, a detachable mounting frame is fixedly connected to the end of the bracket, and a piston driving member for driving the first piston and the second piston is installed on the mounting frame; a limiting block is fixedly connected to the mounting frame, and the limiting block is affixed to the end of the cylinder.

[0010] In some embodiments, the piston driving member includes a first rack, a second rack, a first motor, a first rotating shaft, a turntable, a frame, a second motor, a second rotating shaft, and a gear; one end of the first rack is connected to the first piston; one end of the second rack is connected to the second piston; the first motor is fixedly connected to the mounting frame, the output end of the first motor is fixedly connected to the first rotating shaft, the first rotating shaft is fixedly connected to the turntable, a first limiting slide and a second limiting slide are provided on the turntable, the first rack is slidably inserted in the first limiting slide, and the second rack is slidably inserted in the second limiting slide; the frame is fixedly connected to the turntable, the second motor is fixedly connected to the frame, the second rotating shaft is fixedly connected to the output end of the second motor, the gear and the second rotating shaft are fixedly connected, and the upper and lower sides of the gear are respectively meshed with the first rack and the second rack.

[0011] In some embodiments, channels are provided on the first piston and the second piston; an injection tube is fixedly connected to the turntable, one end of the injection tube is coupled to the pump body, one end of the injection tube is inserted into the channel, and an injection hole is opened on the injection tube.

[0012] In some embodiments, the sealing disk includes a carrier and a rubber sealing ring, and the rubber sealing ring is fixedly connected to the carrier; the liquid inlet pipe and the liquid outlet pipe both pass through the carrier and the rubber sealing ring; the first liquid inlet, the first liquid outlet, the second liquid inlet, and the second liquid outlet are all aligned with the rubber sealing ring.

[0013] In some embodiments, an air cavity is provided inside the rubber sealing ring, and the air cavity is coupled to a gas regulating member; or the cross-sectional areas of the first chamber and the second chamber are different.

[0014] In some embodiments, the first rack and the first piston are connected through a gas regulating member; the gas regulating member includes a ring, a connecting rod and an airbag; the ring is fixedly connected to the first piston; the connecting rod is inserted into the ring, and the connecting rod is fixedly connected to the first rack; the airbag is arranged inside the ring, one end of the airbag is fixedly connected to the bottom of the ring, and the other end of the airbag is fixedly connected to the connecting rod, and the airbag and the air cavity are coupled.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] During operation of the present invention, when the device is in the first working condition, the first piston and the second piston move in opposite directions at equal distances. At this time, the first piston extracts the accumulated fluid in the patient's body into the first chamber, and the second piston discharges the accumulated fluid in the second chamber into the accumulated fluid storage container. Subsequently, by rotating the cylinder or the sealing disk, it can be switched to the second working condition. In the second working condition, the first piston and the second piston move in opposite directions again, so that the liquid in the first chamber is discharged into the accumulated fluid storage container, and at the same time, the second piston extracts the accumulated fluid from the patient's body into the second chamber.

[0017] Through the above design, when the first chamber of the device extracts the accumulated fluid from the patient's body, the second chamber discharges the accumulated fluid; when the first chamber discharges the accumulated fluid, the second chamber extracts the accumulated fluid from the patient's body, thereby achieving uninterrupted extraction. At the same time, the device is provided with a blocking disk, and the working state can be switched by rotating the blocking disk or the cylinder to control the flow direction of the accumulated fluid. This avoids the need to set up multiple valves to control the flow direction of the accumulated fluid, making the device structure simpler and the replacement of the blocking disk, cylinder and piston more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the effusion drainage mechanism of the pericardiothoracic puncture and effusion drainage device provided in Example 1 of the present invention from a first viewing angle;

[0019] Figure 2 The embodiment 1 of the present invention provides Figure 1 A schematic diagram of the enlarged structure of part A;

[0020] Figure 3 is a schematic diagram of a top view structure provided by Embodiment 1 of the present invention;

[0021] Figure 4 The embodiment 1 of the present invention provides Figure 3 Schematic diagram of the cross-sectional structure of the middle BB part;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the effusion drainage mechanism of the pericardiothoracic puncture and effusion drainage device provided in Example 1 of the present invention from a second viewing angle;

[0023] Figure 6 It is a schematic diagram of the main structure of the effusion drainage mechanism of the pericardiothoracic puncture and effusion drainage device provided in Embodiment 1 and Embodiment 2 of the present invention;

[0024] Figure 7 The present invention provides embodiments 1 and 2 Figure 6 Schematic diagram of the cross-sectional structure of the CC part;

[0025] Figure 8 The embodiment 1 of the present invention provides Figure 7 A schematic diagram of the enlarged structure of the D part;

[0026] Fig. 9 Embodiment 2 of the present invention provides Figure 7 Schematic diagram of the enlarged structure of part D.

[0027] In the figure: 1, blocking disk; 101, carrier; 102, rubber sealing ring; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, cylinder; 5, first chamber; 6, second chamber; 7, first liquid inlet; 8, first liquid outlet; 9, second liquid inlet; 10, second liquid outlet; 11, first piston; 12, second piston; 13, base; 14, support wheel; 15, bracket; 16, mounting frame; 17, limit block; 18, first rack; 19, second rack; 20, first motor; 21, first rotating shaft; 22, turntable; 23, frame; 24, second motor; 25, gear; 26, first limit slide; 27, second limit slide; 28, channel; 29, injection pipe; 30, collar; 31, connecting rod; 32, airbag. DETAILED DESCRIPTION

[0028] In order to further understand the content, features and effects of the present invention, the following embodiments are exemplified and described in detail with reference to the accompanying drawings. It should be understood that in a specific context, "coupled" and "connected", "connected" and "connected" have the same or similar meanings and can be replaced with each other.

[0029] The following is combined with Figure 1 To Attachment Fig. 9 The structure of the present invention is described in detail.

[0030] Example 1

[0031] See also Figure 1 , Figure 3-Figure 7, a pericardiothoracic puncture and effusion drainage device provided in an embodiment of the present invention includes a puncture mechanism and an effusion drainage mechanism. The puncture mechanism can be any suitable puncture mechanism in the art, and has the characteristics of high precision and high safety. The main task of the puncture mechanism is to achieve accurate and safe puncture, laying the foundation for subsequent effusion drainage work. In one embodiment, the puncture mechanism can generally include main parts such as a puncture needle, a puncture handle, a guide device, a safety locking mechanism, a disinfection and protection component, etc. Among them, the puncture needle is a key component of the puncture mechanism, which needs to have sufficient strength and hardness to ensure that it can penetrate the skin and tissue, and at the same time, it must have sufficient toughness and elasticity to reduce damage to the patient. The tip of the puncture needle is usually designed as a bevel or an acute angle to reduce the resistance during puncture. The puncture handle is a component that the operator holds and operates, and it needs to be designed to conform to ergonomic principles so that the operator can hold and operate it comfortably and stably. The handle is also usually equipped with an adjustment device for controlling the depth and angle of the puncture needle. In order to ensure that the puncture needle can reach the target position accurately, the puncture mechanism also needs to be equipped with a guide device. The guide device can be positioned by imaging technology (such as ultrasound, X-ray, etc.) to ensure that the puncture needle always stays on the correct path during the puncture process. In order to prevent accidents during the puncture process, the puncture mechanism also needs to be equipped with a safety locking mechanism. This mechanism can automatically lock the puncture needle after it reaches the predetermined position to prevent it from going deeper or deviating. Since the puncture mechanism needs to directly contact the patient's skin and tissue, it also needs to have disinfection and protection functions. This includes using sterile materials to make the puncture needle and handle, and disinfecting the puncture needle before puncture.

[0032] It should be understood that the above is merely an exemplary introduction to the puncture mechanism, and any suitable puncture mechanism in the art can be applied to the exemplary embodiments according to the present disclosure, and the present disclosure does not limit this.

[0033] In one embodiment, the puncture mechanism can be coupled to the fluid drainage mechanism through a hose, and the fluid drainage mechanism includes a sealing disk 1, through which a liquid inlet pipe 2 and a liquid outlet pipe 3 are penetrated, the liquid inlet pipe 2 is coupled to the puncture mechanism through a hose, and the liquid outlet pipe 3 is coupled to the fluid storage container; the fluid drainage mechanism also includes a cylinder body 4, in which a first chamber 5 and a second chamber 6 are provided, one end of the first chamber 5 is provided with a first liquid inlet 7 and a first liquid outlet 8, one end of the second chamber 6 is provided with a second liquid inlet 9 and a second liquid outlet 10, and the first chamber 5 and the second chamber 6 are provided with a first piston 11 and a second piston 12 respectively.

[0034] Specifically, continue to refer to Figures 1 to 9On the sealing disk 1, the liquid inlet pipe 2 and the liquid outlet pipe 3 respectively pass through it to form two independent channels. The liquid inlet pipe 2 is connected to the puncture mechanism through a hose to ensure that after the puncture is successful, the accumulated fluid in the body cavity can smoothly enter the drainage system. The liquid outlet pipe 3 is directly connected to the accumulated fluid storage container to safely transport the collected accumulated fluid to the designated container. At the same time, a first chamber 5 and a second chamber 6 are provided in the cylinder 4. The two chambers are independent of each other, but cooperate with each other through the mechanism of the present invention. A first liquid inlet 7 and a first liquid outlet 8 are provided at one end of the first chamber 5, and a second liquid inlet 9 and a second liquid outlet 10 are provided at one end of the second chamber 6. A first piston 11 and a second piston 12 are respectively provided in the first chamber 5 and the second chamber 6. The two pistons can slide freely in the chambers. By adjusting their positions, the flow speed and direction of the liquid can be controlled.

[0035] The specific working principle can be as follows: when the puncture mechanism successfully punctures and connects the body cavity, the accumulated fluid in the body cavity first enters the first chamber 5 through the liquid inlet tube 2. As the accumulated fluid in the first chamber 5 increases, the first piston 11 gradually moves downward under the action of the liquid pressure until the first liquid outlet 8 is opened. At this time, the accumulated fluid flows into the second chamber 6 through the first liquid outlet 8. In the second chamber 6, the accumulated fluid is squeezed by the second piston 12 again, and is finally pushed to the liquid outlet tube 3, and flows into the accumulated fluid storage container through the liquid outlet tube 3.

[0036] In this way, through the mutual cooperation of components such as the hose, the sealing disk 1, the liquid inlet pipe 2, the liquid outlet pipe 3, the cylinder 4, the first chamber 5, the second chamber 6, the first liquid inlet 7, the first liquid outlet 8, the second liquid inlet 9, the second liquid outlet 10, the first piston 11 and the second piston 12, the puncture drainage system forms an efficient and safe solution for treating fluid accumulation.

[0037] Furthermore, the cylinder 4 and the sealing disk 1 can be switched to the first working condition or the second working condition by relative rotation; when in the first working condition, the first liquid inlet 7 and the liquid inlet pipe 2 are aligned, the first liquid outlet 8 and the sealing disk 1 are fitted (the first liquid outlet 8 is blocked), the second liquid inlet 9 and the sealing disk 1 are fitted (the second liquid inlet 9 is blocked), and the second liquid outlet 10 and the liquid outlet pipe 3 are aligned; when in the second working condition, the first liquid inlet 7 and the sealing disk 1 are fitted (the first liquid inlet 7 is blocked), the first liquid outlet 8 and the liquid outlet pipe 3 are coupled, the second liquid inlet 9 and the liquid inlet pipe 2 are aligned, and the second liquid outlet 10 and the sealing disk 1 are fitted (the second liquid outlet 10).

[0038] During use, when in the first working state, the first piston 11 and the second piston 12 are moved equidistantly and in opposite directions, and the first piston 11 can extract the accumulated fluid in the patient's body into the first chamber 5, and the second piston 12 can discharge the accumulated fluid in the second chamber 6 into the accumulated fluid storage container. Then, by rotating the cylinder 4 or the sealing disk 1, the second working state can be switched to, and then the first piston 11 and the second piston 12 are moved in opposite directions, so that the first piston 11 can discharge the liquid in the first chamber 5 into the accumulated fluid storage container, and the second piston 12 can extract the accumulated fluid in the patient's body into the second chamber 6.

[0039] With this arrangement, when the first chamber 5 extracts the accumulated fluid from the patient's body, the second chamber 6 discharges the accumulated fluid, and when the first chamber 5 discharges the accumulated fluid, the second chamber 6 extracts the accumulated fluid from the patient's body, so that uninterrupted extraction can be achieved. In addition, a blocking disc 1 is provided, and the switching of working conditions (i.e., controlling the flow direction of the accumulated fluid) can be achieved by rotating the blocking disc 1 or the cylinder 4, so there is no need to set up multiple valves to control the flow direction of the accumulated fluid, the structure is simpler, and the blocking disc 1, the cylinder 4, and the piston are easier to replace.

[0040] It should be noted that the first chamber 5 and the second chamber 6 can be configured as a semicircle as shown in the figure, or can be configured as a rectangle, a square, etc., which is not limited here. The piston can be configured as a rubber piston, or at least the edge is made of rubber material.

[0041] In one embodiment, the cross-sectional areas of the first chamber 5 and the second chamber 6 are different. With this arrangement, even if the piston moves at the same speed, different chambers are used to extract the accumulated liquid, and the extraction speed is different. For example, when the extraction speed needs to be increased, the chamber with a larger cross-sectional area can be used for extraction.

[0042] In one embodiment, the cylinder 4 and the blocking disk 1 can also be switched to the third working state by relative rotation; when in the third working state, the first liquid inlet 7, the first liquid outlet 8, the second liquid inlet 9 and the second liquid outlet 10 are all fitted with the blocking disk 1. In the third working state, the four key liquid flow ports, the first liquid inlet 7, the first liquid outlet 8, the second liquid inlet 9 and the second liquid outlet 10, are all tightly fitted with the blocking disk 1. This fitting design makes the four openings completely closed, thereby realizing the closed state of the effusion drainage mechanism. This closed state design brings multiple benefits. When the effusion drainage mechanism is not in use, it can effectively prevent pollutants from the external environment from entering the first chamber 5 and the second chamber 6, thereby ensuring the cleanliness and sterility of the two chambers. This is very important in the medical field, because any slight contamination may lead to serious consequences. During the liquid extraction operation, if it is necessary to temporarily interrupt the extraction, the effusion drainage mechanism will immediately enter the closed state by switching to the third working state. This design effectively prevents the reflux of the effusion. In traditional drainage systems, if the drainage process is suddenly interrupted, the accumulated fluid is likely to flow back into the body cavity due to the pressure difference, which will not only affect the effect of the drainage, but also may cause additional pain and discomfort to the patient. In addition, this multi-mode switching design also makes the entire puncture drainage system more flexible and adaptable. Doctors can adjust the working state of the effusion drainage mechanism at any time according to the patient's specific situation and surgical needs to achieve the best drainage effect. This flexibility not only improves the success rate of the operation, but also reduces the risk and pain of the patient.

[0043] See also Figure 1 , a base 13 is connected to the lower side of the blocking disk 1. This base 13 not only plays a supporting and stabilizing role, but also ensures that the blocking disk 1 can fit smoothly on the lower side of the cylinder 4 through the support wheel 14 fixedly connected thereto. The blocking disk 1 can also be connected to a detachable mounting frame 16 through a bracket 15. The design of the mounting frame 16 not only provides additional support for the effusion drainage mechanism, but more importantly, it also carries a piston drive for driving the first piston 11 and the second piston 12. Through the precise control of the piston drive, the flow speed and direction of the effusion can be accurately adjusted to ensure a smooth and safe drainage process.

[0044] The mounting frame 16 is connected by bolts, so that it can be easily connected or removed from the bracket 15. The advantage of this design is that when it is necessary to remove or replace the cylinder 4, the bolts on the mounting frame 16 can be loosened first, and then the entire mounting frame 16 together with the piston drive member and the piston can be removed. In this way, the cylinder 4 can be easily replaced without disassembling other components, which greatly improves work efficiency.

[0045] In addition, a limit block 17 is fixedly connected to the mounting frame 16. The main function of the limit block 17 is to ensure the relative position between the mounting frame 16 and the cylinder 4 is stable, and to prevent unnecessary displacement or shaking during the drainage of the effusion. When the mounting frame 16 is connected to the bracket 15, the limit block 17 will fit tightly to the end of the cylinder 4 to form a stable barrier. When the cylinder 4 needs to be disassembled, the limit block 17 can also be disassembled together with the mounting frame 16, thereby removing the restriction on the cylinder 4 and allowing it to be easily taken out or replaced.

[0046] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The piston driving member may include a first rack 18, a second rack 19, a first motor 20, a first rotating shaft 21, a turntable 22, a frame 23, a second motor 24, a second rotating shaft, and a gear 25; one end of the first rack 18 is connected to the first piston 11; one end of the second rack 19 is connected to the second piston 12; the first motor 20 is fixedly connected to the mounting frame 16, the output end of the first motor 20 is fixedly connected to the first rotating shaft 21, the first rotating shaft 21 is fixedly connected to the turntable 22, and the turntable 22 is provided with a first limiting slide 26 and a second limiting slide 27, the first rack 18 is slidably inserted in the first limiting slide 26, and the second rack 19 is slidably inserted in the second limiting slide 27; the frame 23 is fixedly connected to the turntable 22, the second motor 24 is fixedly connected to the frame 23, the second rotating shaft is fixedly connected to the output end of the second motor 24, the gear 25 is fixedly connected to the second rotating shaft, and the upper and lower sides of the gear 25 are respectively meshed with the first rack 18 and the second rack 19.

[0047] When in use, the second motor 24 can drive the first rack 18 and the second rack 19 to move through the gear 25, so that the first piston 11 and the second piston 12 move equidistantly and oppositely. When it is necessary to switch the working state, the first motor 20 can drive the turntable 22 to rotate, and the turntable 22 can drive the cylinder 4 to rotate a certain angle along its own axis through the rack and the piston, so as to switch between various working states.

[0048] See also Figure 6-Figure 8 A channel 28 is provided on the first piston 11 and the second piston 12, and a liquid injection tube 29 is fixedly connected to the turntable 22. One end of the liquid injection tube 29 is coupled to the pump body, and one end of the liquid injection tube 29 is inserted into the channel 28. The liquid injection tube 29 is provided with a liquid injection hole.

[0049] When in use, the pump body injects disinfectant (such as alcohol) into the cavity through the injection tube 29, so that the accumulated liquid in the cavity can be pre-treated to prevent the impact on the environment or operators. Or after the operation is completed, the disinfectant is injected to disinfect the chamber. Of course, a small amount of accumulated liquid can also be sucked out of the cavity by the pump body, which can be used for inspection. It should be noted that a rubber sealing ring is set on the edge of the channel 28, and the injection tube 29 and the rubber sealing ring are fitted to prevent leakage.

[0050] See also Figure 3 and Figure 4 The sealing disk 1 includes a carrier 101 and a rubber sealing ring 102, and the rubber sealing ring 102 is fixedly connected to the carrier 101; the liquid inlet pipe 2 and the liquid outlet pipe 3 both penetrate the carrier 101 and the rubber sealing ring 102; the first liquid inlet 7, the first liquid outlet 8, the second liquid inlet 9, and the second liquid outlet 10 are all aligned with the rubber sealing ring 102.

[0051] The rubber sealing ring 102 can play a sealing role, so that the accumulated liquid will not leak from the ends of the first liquid inlet 7 , the first liquid outlet 8 , the second liquid inlet 9 , and the second liquid outlet 10 .

[0052] In one embodiment, an air cavity is provided inside the rubber sealing ring 102, and the air cavity is coupled with a gas regulating member. Whether pushing or pulling the piston, it is necessary to improve the sealing effect to prevent the accumulated liquid from leaking from the ends of the first liquid inlet 7, the first liquid outlet 8, the second liquid inlet 9, and the second liquid outlet 10. At this time, the gas regulating member can be used to inject gas into the air cavity to achieve this purpose; however, if the seal is too tight, it will be difficult for the cylinder 4 to rotate and switch the working state. Therefore, part of the gas in the air cavity can be extracted through the gas regulating member to facilitate the switching of the working state. Exemplarily, the gas regulating member can be set as an air pump, and the following settings can also be made.

[0053] Example 2

[0054] The difference from Example 1 is that Figure 6 , Figure 7 and Fig. 9 The first rack 18 and the first piston 11 are connected through a gas regulating member; the gas regulating member includes a collar 30, a connecting rod 31 and an airbag 32; the collar 30 is fixedly connected to the first piston 11; the connecting rod 31 is inserted into the collar 30, and the connecting rod 31 is fixedly connected to the first rack 18; the airbag 32 is arranged inside the collar 30, one end of the airbag 32 is fixedly connected to the bottom of the collar 30, and the other end of the airbag 32 is fixedly connected to the connecting rod 31, and the airbag 32 is coupled to the air cavity.

[0055] By this arrangement, the airbag 32 can be squeezed while pushing or pulling the piston, so that the gas in the airbag 32 is squeezed into the air cavity, which can improve the sealing effect. It should be noted that the second rack 19 and the second piston 12 can also be arranged as above.

[0056] The working principle according to the various embodiments of the present disclosure can be as follows. When in use, the device will control the extraction and discharge of the accumulated fluid according to the switching of the working conditions. In the first working condition, the first piston and the second piston will move in opposite directions at equal intervals to extract the accumulated fluid in the patient's body into the first chamber and discharge it into the accumulated fluid storage container. When switching to the second working condition, the two pistons move in opposite directions again, but this time the liquid in the first chamber is discharged into the accumulated fluid storage container, and the accumulated fluid in the patient's body is extracted into the second chamber at the same time.

[0057] This setup enables an uninterrupted extraction process because it ensures that one operating state is being extracted while another operating state is being discharged. In addition, the operating state can be easily switched by rotating the blocking disk or the cylinder, without the need for multiple valves to control the flow direction of the accumulated liquid. This simple structure makes it easier to replace the blocking disk, cylinder and piston.

[0058] Specifically, in the first working condition, the first piston 11 and the second piston 12 in the fluid drainage mechanism will move in opposite directions at equal distances. In this process, the first piston 11 will move downward, and extract the accumulated fluid in the patient's body into the first chamber 5 through the first liquid inlet 7. At the same time, the second piston 12 will move upward, and discharge the accumulated fluid in the second chamber 6 into the accumulated fluid storage container through the second liquid outlet 10. In this way, the extraction and discharge of the accumulated fluid are carried out simultaneously, ensuring the efficiency of the entire drainage process.

[0059] When it is necessary to switch to the second working condition, the relative position between the two is changed by rotating the sealing disk 1 or the cylinder 4. In the second working condition, the first piston 11 and the second piston 12 will move in the opposite direction again, but this time the function is different from that in the first working condition. At this time, the first piston 11 will move upward, and the accumulated fluid in the first chamber 5 will be discharged into the accumulated fluid storage container through the first liquid outlet 8. At the same time, the second piston 12 will move downward, and the accumulated fluid in the patient's body will be extracted into the second chamber 6 through the second liquid inlet 9. This design ensures that while one working condition is being extracted, another working condition is being discharged, thereby achieving an uninterrupted effusion treatment process.

[0060] This working mode switching design brings multiple benefits. First, it makes the entire drainage process more efficient, because extraction and discharge can be carried out at the same time, greatly improving work efficiency. Secondly, the working mode can be switched through a simple rotation operation, without the need to use multiple valves to control the flow direction of the accumulated fluid, reducing the complexity of the operation. Finally, due to the relatively simple structure, the sealing disc 1, cylinder 4, piston and other components are easier to replace and maintain, reducing maintenance costs.

[0061] In addition, this puncture drainage system is also highly safe and reliable. During the treatment of effusion, the close-fitting design of the occluder disc 1 ensures that the effusion will not leak out, ensuring the safety of the patient. At the same time, the various components made of medical-grade materials also ensure the stability and durability of the system.

[0062] In summary, the puncture drainage system disclosed in the present invention not only improves the work efficiency of fluid accumulation treatment but also ensures the safety and comfort of patients through a sophisticated working mode switching design and an efficient fluid accumulation treatment mechanism.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pericardiothoracic puncture and effusion drainage device, characterized in that: include: Puncture mechanism; Fluid drainage mechanisms include: A sealing disk (1) having a liquid inlet pipe (2) and a liquid outlet pipe (3) extending therethrough, wherein the liquid inlet pipe (2) is fluidically coupled to the puncture mechanism via a hose, and the liquid outlet pipe (3) is used to couple to an external accumulated liquid storage container; A barrel (4) is rotationally coupled to the blocking disk (1) and is provided with a first chamber (5) and a second chamber (6); wherein the device is suitable for alternately extracting and discharging accumulated liquid from the first chamber (5) and the second chamber (6) by utilizing the liquid inlet pipe (2) and the liquid outlet pipe (3) through relative rotation of the blocking disk (1) and the barrel (4); One end of the first chamber (5) is provided with a first liquid inlet (7) and a first liquid outlet (8), and one end of the second chamber (6) is provided with a second liquid inlet (9) and a second liquid outlet (10); The cylinder (4) and the occluding disk (1) can switch the pericardium and thoracotomy puncture and effusion drainage device to a first working state or a second working state through relative rotation; Wherein, under the first operating condition, the first liquid inlet (7) is aligned with the liquid inlet pipe (2), the first liquid outlet (8) is fitted with the sealing disk (1), and the second liquid inlet (9) is fitted with the sealing disk (1), and the second liquid outlet (10) is aligned with the liquid outlet pipe (3); and wherein, under the second operating condition, the first liquid inlet (7) is fitted with the sealing disk (1), the first liquid outlet (8) is coupled with the liquid outlet pipe (3), and the second liquid inlet (9) is aligned with the liquid inlet pipe (2), and the second liquid outlet (10) is fitted with the sealing disk (1).

2. The device according to claim 1, characterized in that: The cylinder (4) and the sealing disk (1) can also switch to a third working state by relative rotation; in the third working state, the first liquid inlet (7), the first liquid outlet (8), the second liquid inlet (9) and the second liquid outlet (10) are all in contact with the sealing disk (1).

3. A pericardiothoracic puncture and effusion drainage device according to claim 1, characterized in that: A first piston (11) and a second piston (12) are respectively provided in the first chamber (5) and the second chamber (6); The lower side of the blocking disk (1) is fixedly connected to a base (13), the base (13) is fixedly connected to a support wheel (14), and the support wheel (14) is attached to the lower side of the cylinder (4); The blocking disk (1) is fixedly connected to a bracket (15), an end of the bracket (15) is fixedly connected to a detachable mounting frame (16), and a piston driving member for driving the first piston (11) and the second piston (12) is mounted on the mounting frame (16); A limiting block (17) is fixedly connected to the mounting frame (16), and the limiting block (17) is fitted to an end of the cylinder (4).

4. The device according to claim 3, characterized in that: The piston drive member comprises a first rack (18), a second rack (19), a first motor (20), a first rotating shaft (21), a turntable (22), a frame (23), a second motor (24), a second rotating shaft, and a gear (25); One end of the first rack (18) is connected to the first piston (11); One end of the second rack (19) is connected to the second piston (12); The first motor (20) is fixedly connected to the mounting frame (16); the output end of the first motor (20) is fixedly connected to the first rotating shaft (21); the first rotating shaft (21) is fixedly connected to the turntable (22); a first limiting slideway (26) and a second limiting slideway (27) are provided on the turntable (22); the first rack (18) is slidably plugged into the first limiting slideway (26); and the second rack (19) is slidably plugged into the second limiting slideway (27); The frame (23) is fixedly connected to the turntable (22), the second motor (24) is fixedly connected to the frame (23), the second rotating shaft is fixedly connected to the output end of the second motor (24), the gear (25) is fixedly connected to the second rotating shaft, and the upper and lower sides of the gear (25) are respectively meshed with the first rack (18) and the second rack (19).

5. The device according to claim 4, characterized in that: The first piston (11) and the second piston (12) are both provided with a channel (28); A liquid injection pipe (29) is fixedly connected to the turntable (22), one end of the liquid injection pipe (29) is coupled to a pump body, one end of the liquid injection pipe (29) is plugged into the channel (28), and a liquid injection hole is provided on the liquid injection pipe (29).

6. The device according to claim 5, characterized in that: The sealing disk (1) comprises a carrier (101) and a rubber sealing ring (102), wherein the rubber sealing ring (102) and the carrier (101) are fixedly connected; The liquid inlet pipe (2) and the liquid outlet pipe (3) both penetrate the carrier (101) and the rubber sealing ring (102); The first liquid inlet (7), the first liquid outlet (8), the second liquid inlet (9), and the second liquid outlet (10) are all aligned with the rubber sealing ring (102).

7. The device according to claim 6, characterized in that: An air cavity is provided inside the rubber sealing ring (102), and the air cavity is coupled to a gas regulating member; or The first chamber (5) and the second chamber (6) have different cross-sectional areas.

8. The device according to claim 7, characterized in that: The first rack (18) and the first piston (11) are connected via a gas regulating member; The gas regulating member comprises a collar (30), a connecting rod (31) and an air bag (32); The collar (30) is fixedly connected to the first piston (11); The connecting rod (31) is inserted into the collar (30), and the connecting rod (31) is fixedly connected to the first rack (18); The airbag (32) is arranged inside the collar (30), one end of the airbag (32) is fixedly connected to the bottom of the collar (30), the other end of the airbag (32) is fixedly connected to the connecting rod (31), and the airbag (32) is coupled to the air cavity.

Images