A thoracic surgery puncture drainage device

Abstract

The present application belongs to the technical field of thoracic surgery medical instruments, and provides a thoracic surgery puncture drainage device, which comprises a puncture needle, a drainage tube, a drainage bag and a clamping shell for clamping and fixing the drainage bag, which are sequentially connected; a pair of clamping covers are hingedly connected to the top of the clamping shell, and at least two groups of driving assemblies are symmetrically installed inside; and the driving assemblies are elastically connected to the clamping plates through compression springs. The clamping plates and clamping blocks are driven to move in opposite directions by hydraulic transmission, and the drainage bag side wall is firmly fixed by cooperating with the air extraction type negative pressure adsorption assembly, the drainage bag is actively expanded to form an internal negative pressure, efficient and complete drainage of the pleural effusion is realized, one-handed operation structure is optimized, and the technical problems of low drainage efficiency, residual effusion, easy shaking of the puncture needle, complicated operation, adsorption falling and the like of the traditional drainage device are solved. The present application has the advantages of convenient operation, firm fixation, good drainage effect, low pain of the patient and the like, and is suitable for various thoracic surgery effusion puncture drainage operations.

Description

Technical Field

[0001] This invention belongs to the field of thoracic surgical medical device technology, and particularly relates to a thoracic surgical puncture and drainage device. Background Technology

[0002] Thoracic pleural effusion drainage is a routine clinical procedure, primarily used to treat conditions such as pleural effusion, empyema, and hemothorax. A needle is inserted into the patient's pleural cavity, and a drainage tube is used to drain the effusion, relieving chest compression symptoms and achieving the therapeutic goal. Currently, most commonly used thoracic surgical drainage devices are passive drainage structures, relying on the pressure within the patient's pleural cavity to drain the effusion. This often results in insufficient drainage power, leading to incomplete effusion removal, residual effusion in the pleural cavity, and complications such as secondary infection and pleural adhesions, ultimately resulting in poor treatment outcomes.

[0003] Meanwhile, existing drainage devices have obvious operational defects during use: traditional bag-type drainage bags do not have an active opening structure, cannot form a stable negative pressure, and have low drainage efficiency; and after the puncture needle is inserted into the chest cavity, it needs to be supported and fixed by a dedicated person to prevent the puncture needle from shaking and shifting, which not only occupies medical and nursing manpower and increases the workload of medical and nursing staff, but if the support is not stable, it is easy to cause the puncture needle to shift, rub and irritate the chest tissue, and aggravate the patient's pain. Summary of the Invention

[0004] The purpose of this invention is to provide a thoracic surgical puncture and drainage device, which aims to solve the technical problems of existing thoracic surgical puncture and drainage devices, such as low drainage efficiency, incomplete fluid aspiration, easy adsorption and detachment, the need for multiple people to cooperate in operation, poor stability of the puncture needle, and strong pain for patients.

[0005] This invention is implemented as follows: a thoracic surgical puncture and drainage device includes a puncture needle, a drainage tube, and a drainage bag connected in sequence, as well as a clamping shell for fixing and expanding the drainage bag. The top of the clamping shell is hinged with two symmetrical clamping covers, each with a notch on its opposite side adapted to the port of the drainage bag, which can be closed to clamp the end of the drainage bag, achieving a sealed and limited position at the port.

[0006] At least two sets of drive components are symmetrically installed inside the clamping shell. Each drive component is equipped with two clamping plates that can slide relative to or away from each other. A compression spring is fixed between the clamping plates and the clamping shell. Under normal conditions, the compression spring drives the clamping plates to move closer together and reset. Hollow clamping blocks are fixed to the opposite end faces of the two clamping plates. Multiple micro-suction cups are arrayed on the sides of the clamping blocks. The micro-suction cups are connected to the inner cavity of the clamping blocks. The two clamping blocks are connected by a connecting air tube to achieve simultaneous negative pressure adsorption on both sides.

[0007] The clamping shell integrates an opening and closing mechanism, which includes a hydraulic drive structure and an air extraction component. The hydraulic drive structure is connected to the inner cavity of the push cylinder of the drive component and can drive the clamping plate and clamping block to move in opposite directions through hydraulic transmission. The air extraction component is connected to the inner cavity of the clamping block and can simultaneously extract the air inside the clamping block, so that a negative pressure adsorption environment is formed between the micro suction cup and the side wall of the drainage bag, and the drainage bag is firmly fixed.

[0008] The push rod of the opening and closing mechanism extends to the outside of the clamping shell, forming a single-handed grip operation structure similar to a syringe with the handles on both sides of the clamping shell. Medical personnel can hold it with one hand and push the push rod with their thumb to simultaneously complete the negative pressure adsorption and drainage bag opening actions.

[0009] This invention solves the problem of adsorption and detachment by limiting the initial hydraulic fluid filling volume to 50%~70% of the total cavity volume, achieving a step-by-step action of first negative pressure adsorption and then stretching and opening.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. Active negative pressure drainage, high drainage efficiency and thorough extraction. This invention uses a hydraulically driven structure to open the two side walls of the drainage bag, creating a stable negative pressure inside the bag. This replaces traditional passive pressure drainage, actively extracting pleural effusion, significantly improving drainage efficiency, thoroughly removing residual pleural effusion, effectively avoiding complications such as pleural adhesions and pleural infections caused by residual effusion, and significantly improving treatment outcomes.

[0012] 2. Strong negative pressure adsorption and excellent anti-fall-off effect. This invention is equipped with a synchronous air extraction component, which simultaneously extracts air from the clamp block and micro suction cup during the push rod operation, forming negative pressure adsorption; and as the drainage bag expands and the accumulated liquid increases, the air extraction component continues to extract air, and the adsorption force increases synchronously, which can effectively counteract the squeezing force of the accumulated liquid on the side wall of the drainage bag, completely solving the problems of easy fall-off and negative pressure failure of traditional suction cup adsorption, and ensuring continuous and stable drainage process.

[0013] 3. Single-person, one-handed operation, saving medical resources. This invention optimizes the operating structure by setting a handle and an external push rod to form a syringe-like grip structure. Medical personnel can support the puncture needle with one hand and operate the opening and closing mechanism with the other, completing the entire puncture and drainage process without the assistance of other medical personnel. This alleviates the problem of scarce clinical medical personnel resources and is suitable for bedside minimally invasive diagnosis and treatment scenarios.

[0014] 4. High puncture stability, reducing patient pain. No special personnel are required to support the puncture needle throughout the procedure. The needle remains stable and does not wobble or shift during the operation, avoiding friction and injury to internal chest tissues. This significantly reduces intraoperative pain and the risk of postoperative complications, improving the safety of diagnosis and treatment.

[0015] 5. The structure is rationally linked, and the operation is precise and controllable. By limiting the initial filling volume of the hydraulic fluid, the device achieves a step-by-step action of first using negative pressure to fix the drainage bag, and then stretching it to form negative pressure. This avoids problems such as poor adhesion and drainage bag falling off due to premature stretching. The action logic is precise and the operation is highly stable. At the same time, the device has a compact structure, is portable and easy to use, and is suitable for various thoracic surgical puncture and drainage procedures, making it highly versatile. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of the present invention.

[0018] Figure 3 In this invention Figure 2 Enlarged diagram of point A in the middle.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the driving component in this invention.

[0020] Figure 5 In this invention Figure 4 Enlarged diagram of point B in the middle.

[0021] In the attached diagram: 1. Clamping shell; 2. Clamping cover; 3. Drainage bag; 4. Handle; 5. Opening and closing mechanism; 51. Push rod; 52. Piston block; 53. Hydraulic tank; 54. Linkage rod; 55. Infusion tube; 56. Connecting air tube; 57. Air infusion tube; 58. Piston plate; 59. Air box; 6. Compression spring; 7. Drive assembly; 71. Fixed cylinder; 72. Movable column; 73. Mounting fan plate; 74. Push cylinder; 75. Fixing component; 76. Cavity; 77. Branch pipe; 8. Clamping plate; 9. Clamping block; 10. Miniature suction cup. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0024] like Figures 1-5As shown, this invention provides a thoracic surgical puncture and drainage device, including a puncture needle, a drainage tube, a drainage bag 3, and a clamping shell 1. The puncture needle, drainage tube, and drainage bag 3 are sequentially sealed and connected to form a complete fluid drainage channel. The top of the clamping shell 1 is hinged with two clamping covers 2. The opposite sides of the two clamping covers 2 are provided with arc-shaped notches that are adapted to the ports of the drainage bag 3. After the two clamping covers 2 are closed, the ports of the drainage bag 3 are clamped through the notches to achieve port sealing and limit, preventing the drainage bag from shifting or leaking.

[0025] At least two drive components 7 are installed inside the clamping shell 1. The drive components 7 are symmetrically distributed about the center of the clamping shell 1. Two clamping plates 8 are installed on the drive components 7. Each clamping plate 8 is connected to the clamping shell 1 by a compression spring 6 to provide a reset elastic force for the clamping plate 8. Clamping blocks 9 are fixedly installed on the opposite sides of the two clamping plates 8. Adsorption components are provided on the opposite sides of the two clamping blocks 9. The adsorption components are used to adsorb the two sides of the drainage bag 3 so that the two sides of the drainage bag 3 can be pulled open later.

[0026] The clamping shell 1 is also equipped with an opening and closing mechanism 5. The output end of the opening and closing mechanism 5 is connected to the input end of the drive component 7. The input end of the opening and closing mechanism 5 extends out of the clamping shell 1. The opening and closing mechanism 5 is used to drive the output end of the drive component 7 to move. The drive component 7 is used to drive the two clamping plates 8 to move in opposite directions.

[0027] Specifically, in use, open the two clamping covers 2, slightly push the input end of the opening and closing mechanism 5 to separate the two clamping blocks 9, then insert the drainage bag 3 between the two clamping blocks 9, release the input end of the opening and closing mechanism 5, and the two clamping blocks 9 clamp the two sides of the drainage bag 3 respectively. At the same time, the adsorption component contacts the two sides of the drainage bag 3. Then close the two clamping covers 2 to clamp the end of the drainage bag 3. Then the medical personnel insert the puncture needle into the patient's chest, then hold the puncture needle with one hand and operate the input end of the opening and closing mechanism 5 with the other hand to make the opening and closing mechanism 5 drive the drive component 7 to move. The drive component 7 drives the two clamping plates 8 to move. The back movement causes the clamp 8 to move in opposite directions, and the two clamps 9 pull open the two side walls of the drainage bag 3 through the adsorption component, creating negative pressure inside the drainage bag 3. The effusion in the patient's pleural cavity is then aspirated through the drainage tube and puncture needle. This invention enables the bag-shaped drainage device to generate negative pressure, greatly improving drainage efficiency and allowing for more thorough effusion removal, thus improving the treatment effect. At the same time, medical personnel can support the puncture needle with one hand and operate the opening and closing mechanism 5 with the other, completing a treatment without the assistance of others. This alleviates the workload of medical personnel and avoids the swaying of the puncture needle caused by the lack of support, which increases the patient's pain.

[0028] The present invention provides a thoracic surgical puncture drainage device. In this embodiment, the driving assembly 7 includes two fixed cylinders 71 and one push cylinder 74. The two fixed cylinders 71 are respectively fixedly installed on opposite sides of the clamping shell 1. Movable columns 72 are slidably installed at opposite ends of the two fixed cylinders 71. The push cylinder 74 is fixedly installed inside the clamping shell 1 by a fixing member 75. One end of the two movable columns 72 is respectively inserted into the two ends of the push cylinder 74. The opposite ends of the two movable columns 72 are provided with cavities 76 that communicate with the push cylinder 74. Hydraulic fluid is filled between the two cavities 76 and the push cylinder 74. The output end of the opening and closing mechanism 5 is connected to the push cylinder 74.

[0029] Mounting fan plates 73 are fixedly connected to the side walls of the two movable columns 72, and the two clamping plates 8 are respectively fixedly installed on the two mounting fan plates 73.

[0030] Specifically, by pushing the input end of the opening and closing mechanism 5, the opening and closing mechanism 5 can push hydraulic fluid into the push cylinder 74. After the hydraulic fluid fills the space between the two cavities 76 and the push cylinder 74, it will continue to push the two movable columns 72 to move in opposite directions. The two movable columns 72 will drive the clamping plate 8 to move in opposite directions through the installed fan plate 73, thereby causing the clamping block 9 to pull open the two sides of the drainage bag 3.

[0031] After treatment, open the clamping cover 2, take out the drainage bag 3, and under the action of the compression spring 6, the two clamping blocks 9 move closer to each other. The clamping blocks 9 drive the two movable columns 72 to move closer to each other, thereby squeezing the hydraulic fluid in the push cylinder 74 back into the opening and closing mechanism 5 for the next use.

[0032] The present invention provides a thoracic surgical puncture drainage device. In this embodiment, the opening and closing mechanism 5 includes a hydraulic tank 53 fixedly installed inside the clamping shell 1. A piston block 52 is slidably installed inside the hydraulic tank 53. A push rod 51 is fixedly connected to the side of the piston block 52. One end of the push rod 51 extends out of the clamping shell 1. Two infusion tubes 55 are connected to the side of the hydraulic tank 53. One end of the two infusion tubes 55 is connected to the drive assembly 7. The side of the hydraulic tank 53 near the infusion tubes 55 of the piston block 52 is filled with hydraulic fluid.

[0033] Specifically, the end of the infusion tube 55 is connected to the push tube 74 via a branch tube 77.

[0034] When the opening and closing mechanism 5 is operated, the push rod 51 is pushed, and the push rod 51 drives the piston block 52 to move in the hydraulic tank 53. The piston block 52 squeezes the hydraulic fluid in the hydraulic tank 53 and squeezes the hydraulic fluid into the push cylinder 74 through the infusion pipe 55, and then pushes the two movable columns 72 to move in opposite directions.

[0035] The present invention provides a thoracic surgical puncture and drainage device. In this embodiment, two handles 4 are fixedly connected to the side of the clamping shell 1, and the two handles 4 are respectively arranged on both sides of the push rod 51.

[0036] The two handles 4 are used to place the index and middle fingers of medical personnel. When operating the push rod 51, the thumb can be placed at the end of the push rod 51 to form a syringe-like one-handed control structure. The thumb can push the push rod 51 to move, which in turn causes the two clamps 9 to pull open the two sides of the drainage bag 3, making the operation of the opening and closing mechanism 5 simpler and more convenient, and also making it easier for medical personnel to operate.

[0037] The present invention provides a thoracic surgical puncture drainage device. In this embodiment, the adsorption component is a plurality of micro suction cups 10, and the plurality of micro suction cups 10 are arrayed on the side of the clamping block 9.

[0038] When the two clamping blocks 9 hold the drainage bag 3, multiple micro suction cups 10 are in contact with the side of the drainage bag 3. Under the action of the compression spring 6, the micro suction cups 10 are pressed tightly against the drainage bag 3, thereby expelling the air inside the micro suction cups 10. Under the action of atmospheric pressure, the micro suction cups 10 adsorb the side of the drainage bag 3, thereby pulling the side of the drainage bag 3 open.

[0039] After treatment, medical personnel can detach the drainage bag 3 from the miniature suction cup 10 and refill the miniature suction cup 10 with air for the next use.

[0040] Of course, the adsorption component can also be made of reusable medical adhesive material, which can also achieve the adsorption and fixation function of the drainage bag sidewall.

[0041] The present invention provides a thoracic surgical puncture drainage device. As the effusion is drained, the effusion in the drainage bag 3 gradually increases, and the pressure of the effusion on the side wall of the drainage bag 3 gradually increases. When the two sides of the drainage bag 3 are pulled open to a certain width, or when the squeezing force of the effusion on the side wall of the drainage bag 3 is too great, the side wall of the drainage bag 3 is easy to detach from the micro suction cup 10. As a result, the opening and closing mechanism 5 can no longer drive the drainage bag 3 to open, and cannot generate enough suction to absorb the effusion, resulting in residual pleural effusion in the patient, which greatly reduces the treatment effect. Therefore, in this embodiment, the clamping block 9 has a cavity 76 structure, and all the micro suction cups 10 are connected to the interior of the clamping block 9.

[0042] To enable the micro suction cup 10 to adhere to the side wall of the drainage bag 3, the opening and closing mechanism 5 also includes an air extraction component. The air extraction component is installed inside the clamping shell 1. The input end of the air extraction component is connected to the piston block 52, and the output end of the air extraction component is connected to a clamping block 9. The two clamping blocks 9 are connected by a connecting air pipe 56. The air extraction component is used to extract air from one clamping block 9. Through the connecting air pipe 56, air from the other clamping block 9 will also be extracted, thereby reducing the air pressure between the micro suction cup 10 and the side of the drainage bag 3, so that the drainage bag 3 can be adsorbed by the micro suction cup 10.

[0043] Specifically, when the push rod 51 is operated, the air extraction component is driven to move simultaneously. The air extraction component can extract the air in the two clamping blocks 9, reduce the air pressure in the two clamping blocks 9 and the two micro suction cups 10. Under atmospheric pressure, the drainage bag 3 is attracted by the micro suction cups 10.

[0044] The present invention provides a thoracic surgical puncture drainage device. In this embodiment, the air aspiration assembly includes an air box 59 fixedly installed inside the clamping shell 1. A piston plate 58 is slidably installed inside the air box 59. A linkage rod 54 is fixedly connected to the side of the piston block 52. One end of the linkage rod 54 passes through the hydraulic box 53 and the air box 59 in sequence and is fixedly connected to the piston plate 58. An air supply pipe 57 is connected to the top of the air box 59. One end of the air supply pipe 57 is connected to a clamping block 9.

[0045] Specifically, when the push rod 51 is pushed, the push rod 51 drives the piston block 52 to move. The piston block 52 drives the piston plate 58 to move through the linkage rod 54, which increases the space in the air box 59 on the side of the air supply pipe 57 and reduces the air pressure. This causes the air in the clamping block 9 to rush into the air box 59, thereby reducing the air pressure in the two clamping blocks 9 and causing the two sides of the drainage bag 3 to be attracted by the two micro suction cups 10.

[0046] In addition, as the drainage bag 3 gradually expands, the piston plate 58 will continue to move, thereby continuously drawing air out of the clamping block 9. This causes the suction force of the micro suction cup 10 on the drainage bag 3 to gradually increase. Therefore, when the two sides of the drainage bag 3 are stretched to a certain width, or when the pressure of the accumulated liquid on the side wall of the drainage bag 3 is too great, the suction force of the micro suction cup 10 on the drainage bag 3 will also increase accordingly, making it difficult for the drainage bag 3 to fall off the micro suction cup 10.

[0047] The present invention provides a thoracic surgical puncture drainage device. Due to the synchronous movement of the piston block 52 and the piston plate 58, in order to allow the micro suction cup 10 to first adsorb the drainage bag 3 and then pull the drainage bag 3 to move to the side, in this embodiment, initially (the two micro suction cups 10 are in contact with the two sides of the drainage bag 3 respectively), the volume of the hydraulic fluid between the two cavities 76 and the push cylinder 74 accounts for 50-70% of the space volume between the two cavities 76 and the push cylinder 74.

[0048] Specifically, when extracting the accumulated fluid, the push rod 51 is pushed, which in turn moves the piston block 52. The piston block 52 pushes the hydraulic fluid in the hydraulic tank 53 into the push cylinder 74. This hydraulic fluid first fills the space between the cavity 76 and the push cylinder 74. At this time, the hydraulic fluid cannot push the two movable columns 72 to move in opposite directions. At the same time, the piston block 52 moves the piston plate 58 through the linkage rod 54. The piston plate 58 extracts the air inside the two clamping blocks 9, thereby causing the micro suction cup 10 to adsorb the drainage bag 3. Therefore, when operating the opening and closing mechanism 5, the micro suction cup 10 will first adsorb the side of the drainage bag 3. Then, after the hydraulic fluid fills the space between the cavity 76 and the push cylinder 74, it will move the two clamping blocks 9, thereby stretching the two sides of the drainage bag 3. This avoids premature stretching that would result in insufficient suction force and cause the drainage bag 3 to fall off the micro suction cup 10.

[0049] Workflow:

[0050] S1. Equipment pre-installation preparation: Manually open the two clamping covers 2 on the top of the clamping shell 1, and slightly push the push rod 51 inward to separate the two clamping blocks 9 through the linkage structure, thereby expanding the clamping distance; place the empty drainage bag 3 between the two clamping blocks 9 so that the two side walls of the drainage bag 3 are completely attached to the micro suction cup 10.

[0051] S2. Drainage bag fixing limit: Loosen the push rod 51, and under the restoring force of the compression spring 6, the two clamping plates 8 and clamping blocks 9 move closer to each other, initially clamping the two side walls of the drainage bag 3; then close the two clamping covers 2, and clamp the port of the drainage bag 3 through the notch on the inner side of the clamping cover 2 to achieve the overall sealing and limiting fixation of the drainage bag 3, preventing displacement and leakage during operation.

[0052] S3. Puncture and positioning: The medical staff holds the puncture needle and accurately inserts it into the area of ​​pleural effusion in the patient. After the puncture is completed, the puncture needle is held stably with one hand to ensure that the puncture needle does not shake or deviate.

[0053] S4. Negative Pressure Adsorption Fixation: Slowly press the push rod 51 with your thumb. The push rod 51 drives the piston block 52 to slide within the hydraulic tank 53. Simultaneously, the piston plate 58 slides within the air tank 59 via the linkage rod 54. The internal volume of the air tank 59 increases and the air pressure decreases. Air is drawn from the two clamping blocks 9 and the micro suction cup 10 through the air supply pipe 57 and the connecting air pipe 56, creating a negative pressure environment between the micro suction cup 10 and the side wall of the drainage bag 3, firmly adsorbing and fixing the two side walls of the drainage bag 3. During this stage, the hydraulic fluid does not fill the push cylinder 74 and the cavity 76. The moving column 72 remains stationary, and only the adsorption and fixation action is completed.

[0054] S5. Active negative pressure drainage: Continue pressing the push rod 51, the piston block 52 squeezes the hydraulic fluid inside the hydraulic tank 53, and continuously pushes the hydraulic fluid into the push cylinder 74 and cavity 76 through the infusion tube 55 and branch tube 77. After the cavity is completely filled, the hydraulic fluid continues to apply pressure, pushing the two movable columns 72 to slide in opposite directions. The movable columns 72 drive the clamping plates 8 and clamping blocks 9 to move in opposite directions through the installed fan plate 73, pulling open the two side walls of the drainage bag 3 in both directions, so that a stable negative pressure is formed inside the drainage bag 3. Under the action of negative pressure suction, the effusion inside the patient's pleural cavity continuously flows into the drainage bag 3 through the puncture needle and drainage tube, completing efficient drainage.

[0055] S6. Dynamic stable adsorption process: As the amount of liquid inside the drainage bag 3 increases, the pressure of the liquid on the side wall of the drainage bag 3 gradually increases. At the same time, the push rod 51 continues to advance, the piston plate 58 continues to pump air, and the negative pressure adsorption force of the micro suction cup 10 increases synchronously. This can counteract the pressure on the side wall of the liquid in real time, prevent the drainage bag 3 from falling off, and ensure the stability of the entire drainage process.

[0056] S7. Postoperative Repositioning and Disassembly: After the pleural effusion drainage is completed, slowly release the push rod 51 to remove the hydraulic pressure. Under the repositioning action of the compression spring 6, the two clamps 9 and the clamp plate 8 move closer to each other and reposition. At the same time, the movable column 72 slides in the opposite direction, squeezing the hydraulic fluid inside the push cylinder 74 back into the hydraulic tank 53. Open the clamping cover 2, gently tear off the drainage bag 3, and air re-enters the micro suction cup 10, causing the negative pressure adsorption to fail. The drainage bag disassembly is completed. After the equipment is repositioned, it can be disinfected and reused.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thoracic surgical puncture and drainage device, comprising a puncture needle, a drainage tube, a drainage bag, and a clamping shell, wherein the puncture needle, the drainage tube, and the drainage bag are sequentially connected and fixed, characterized in that, The top of the clamping shell is hinged with two symmetrically arranged clamping covers, which are used to clamp and limit the end of the drainage bag. The clamping shell is equipped with at least two centrally symmetrically distributed drive components. The drive components are fitted with two opposing clamping plates. A compression spring connects the clamping plates to the clamping shell. Clamping blocks are fixedly installed on opposite sides of the two clamping plates. Adsorption components for adsorbing and fixing the sidewalls of the drainage bag are provided on opposite sides of the two clamping blocks. An opening and closing mechanism is fixedly installed inside the clamping shell. The output end of the opening and closing mechanism is connected to the input end of the drive component. The control end of the opening and closing mechanism extends to the outside of the clamping shell. The opening and closing mechanism is used to drive the drive component to run, causing the two clamping plates and clamping blocks to move in opposite directions, pulling open the side wall of the drainage bag to form a negative pressure drainage space.

2. The thoracic surgical puncture and drainage device according to claim 1, characterized in that, The drive assembly includes two fixed cylinders and one push cylinder. The two fixed cylinders are symmetrically fixed to the inner wall of the clamping shell. Movable columns are slidably inserted into the opposite ends of the two fixed cylinders. The push cylinder is fixedly installed in the center position inside the clamping shell by a fixing member. The inner ends of the two movable columns are respectively inserted into the two ends of the push cylinder. The ends of the movable columns have cavities that communicate with the inner cavity of the push cylinder. The cavities and the inner cavity of the push cylinder are filled with hydraulic fluid. The output end of the opening and closing mechanism communicates with the inner cavity of the push cylinder. The outer walls of the two movable columns are fixedly connected with mounting fan plates, and the two clamping plates are respectively fixedly assembled on the two mounting fan plates.

3. The thoracic surgical puncture and drainage device according to claim 1, characterized in that, The opening and closing mechanism includes a hydraulic tank, a piston block, and a push rod. The hydraulic tank is fixedly installed inside the clamping shell. The piston block is slidably and sealingly assembled inside the hydraulic tank. The push rod is fixed to the outer wall of the piston block and its end extends out of the clamping shell to form a control end. The hydraulic tank has two infusion pipes connected to its side wall. The infusion pipes are connected to the inner cavity of the push cylinder through branch pipes. The cavity inside the hydraulic tank, located between the piston block and the infusion pipes, is filled with hydraulic fluid.

4. The thoracic surgical puncture and drainage device according to claim 3, characterized in that, Two symmetrically arranged handles are fixedly installed on the outer wall of the clamping shell. The two handles are respectively arranged on the left and right sides of the push rod, and together with the push rod, they form a grip-type control structure.

5. The thoracic surgical puncture and drainage device according to claim 3, characterized in that, The adsorption component consists of multiple micro-suction cups arrayed on the side of the clamping block.

6. The thoracic surgical puncture and drainage device according to claim 5, characterized in that, The clamping block has a hollow cavity structure, and all the micro suction cups are connected to the internal cavity of the clamping block. A connecting air pipe is installed between the two clamping blocks; The opening and closing mechanism also includes an air extraction component, which is installed inside the clamping housing. The input end of the air extraction component is connected to the piston block, and the output end of the air extraction component is connected to a clamping block. The two clamping blocks are connected by a connecting air pipe. The air extraction component is used to extract air from one clamping block so that the drainage bag is adsorbed by the micro suction cup.

7. The thoracic surgical puncture and drainage device according to claim 6, characterized in that, The air extraction assembly includes an air box, a piston plate, and a linkage rod. The air box is fixedly installed inside the clamping shell. The piston plate is slidably and sealingly assembled inside the air box. One end of the linkage rod is fixedly connected to the piston block, and the other end passes through the hydraulic box and the air box in sequence and is fixedly connected to the piston plate. The top of the air box is connected to an air supply pipe, and the end of the air supply pipe is connected to the cavity of one of the clamping blocks.

8. The thoracic surgical puncture and drainage device according to claim 2, characterized in that, In the initial state, the hydraulic fluid filling volume of the cavity and the inner cavity of the pusher tube accounts for 50% to 70% of the total cavity volume.

9. The thoracic surgical puncture and drainage device according to claim 1, characterized in that, Both clamping covers have arc-shaped notches on their opposite sides that are adapted to the port of the drainage bag. After the two clamping covers are closed, the drainage bag port is clamped and limited through the notches.

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