A tumor extraction device that prevents the backflow of fluid

Abstract

The application relates to the technical field of medical devices, and discloses a tumor extraction device capable of preventing liquid accumulation backflow, which comprises an extraction cylinder, an exhaust valve is fixedly arranged through the inner wall of the top end of the extraction cylinder, a plug-in cylinder is fixedly arranged on one side of the extraction cylinder, a liquid suction tube is clamped in the plug-in cylinder, a puncture needle is fixedly arranged at the tail end of the liquid suction tube, handles are fixedly arranged above and below the extraction cylinder, a liquid storage channel is arranged through the bottom end of the extraction cylinder, when the piston block moves, the space between the piston block and the liquid inlet channel is sealed, so that the piston block drives the first sliding plate to move on the second sliding column, the first sliding plate drives the spacer plate to separate from the liquid inlet channel, the liquid inlet channel is filled with suction force, the tumor liquid accumulation of a patient flows into the extraction cavity through the puncture needle and the liquid suction tube, and then flows into a liquid storage cylinder through the liquid storage channel and a connecting hose.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a tumor extraction device that can prevent backflow of accumulated fluid. Background Technology

[0002] A tumor is a localized mass formed when cells undergo gene alterations under the influence of carcinogenic factors, losing normal regulation of their growth and resulting in monoclonal abnormal proliferation. Based on their biological characteristics and the different harms they cause to the body, tumors can be divided into two main categories: benign tumors and malignant tumors. The former grows slowly, has clear boundaries with surrounding tissues, does not metastasize, and poses little threat to human health; the latter grows rapidly, can metastasize to other parts of the body, and can also produce harmful substances, destroy the normal structure of organs, cause bodily dysfunction, and threaten life. Tumor effusion is a common complication of malignant tumors, and it is usually treated by aspiration.

[0003] Existing tumor fluid aspiration devices mainly use puncture aspiration or closed puncture drainage. During the aspiration process, the piston's suction and exhaust movements can easily cause gas or liquid to flow back into the drainage tube, which not only affects the effectiveness of the device but also can cause secondary harm to the patient. Furthermore, existing tumor aspiration devices, which mainly rely on puncture aspiration, cannot quantitatively extract fluid and are inconvenient to replace and disassemble the storage bottle. Summary of the Invention

[0004] The purpose of this invention is to provide a tumor extraction device that can prevent backflow of accumulated fluid, so as to solve the problems mentioned in the background art. Technical solution

[0005] This invention provides the following technical solution: a tumor extraction device that prevents backflow of accumulated fluid, comprising an extraction cylinder, an exhaust valve fixedly installed through the inner wall of the top of the extraction cylinder, a connector cylinder fixedly installed on one side of the extraction cylinder, a suction tube snapped into the inside of the connector cylinder, a puncture needle fixedly installed at the tail end of the suction tube, handles fixedly installed at both the top and bottom of the extraction cylinder, a fluid outlet channel opened through the bottom of the extraction cylinder, a threaded shaft block fixedly installed at the end of the extraction cylinder away from the connector cylinder, a first fixing block and an adjustment box fixedly installed at the bottom of the extraction cylinder respectively, a connecting column movably connected to the bottom ends of two adjacent first fixing blocks, a storage cylinder fixedly installed at the bottom ends of two adjacent connecting columns, a first fixing plate fixedly installed inside the extraction cylinder, a first fixing column movably installed through the inside of the first fixing plate, a piston block fixedly installed at the tail end of the first fixing column, and a fluid inlet channel fixedly installed on the adjacent sides of the extraction cylinder and the connector cylinder.

[0006] Preferably, the extraction cylinder has an extraction cavity inside, and a second fixing post and a second fixing plate are fixedly installed on the inner wall of the extraction cavity. A second sliding post is fixedly installed between one side of the second fixing plate and the inner wall of the extraction cavity near the liquid inlet channel. A first return spring and a first sliding plate are movably installed on the outer side of the second sliding post, and the first sliding plate and the first return spring are fixedly connected.

[0007] Preferably, a pad is fixedly installed on the side of the first sliding plate near the liquid inlet channel. The pad is slidably connected to the opening direction of the liquid inlet channel, and the diameter of the pad is larger than the diameter of the liquid inlet channel.

[0008] Preferably, the exhaust valve and the liquid outlet channel are symmetrically distributed about the center of the extraction cylinder, the second fixing plate is located on the same side of the exhaust valve and the liquid outlet channel, and the edge of the first sliding plate is slidably connected to the exhaust valve and the liquid outlet channel respectively.

[0009] Preferably, the piston block is located on the other side of the second fixed plate, and a first sliding column is fixedly installed on the side of the piston block away from the second fixed plate. Each of the first sliding columns passes through the first fixed plate, and the first sliding column is not connected to the inner wall of the extraction cavity near the threaded shaft block.

[0010] Preferably, the first fixing post has a threaded groove inside, and a threaded post is threadedly connected inside the threaded groove. The threaded post passes through the extraction cylinder and is located on the threaded shaft block. A rotating handle is fixedly installed at the tail end of the threaded post. A bearing block is fixedly installed between two adjacent second fixing posts, and the bearing block is movably connected to one end of the threaded post. The first fixing post has a first sliding through hole that matches the second fixing post, and the first sliding post passes through the second fixing post.

[0011] Preferably, a connecting hose is fixedly installed at the top of the liquid storage cylinder, and the connecting hose passes through the regulating box and is connected to the liquid outlet channel.

[0012] Preferably, the regulating box has an regulating cavity inside. A third fixing plate is fixedly installed on the inner wall of the regulating cavity. A third sliding column is fixedly installed between one side of two adjacent third fixing plates and the inner wall of the regulating cavity. A second sliding plate is movably installed on the outer side of the third sliding column. A pulling column is fixedly installed on one side of the second sliding plate, and a second return spring is movably installed on the outer side of the pulling column. The two ends of the second return spring are fixedly connected to the second sliding plate and the inner wall of the regulating cavity, respectively. A squeezing plate is fixedly installed on the other end of the second sliding plate. The squeezing plate is in contact with the connecting hose, and the shape of the squeezing plate is the same as that of the connecting hose. Beneficial effects

[0013] Compared with the prior art, the present invention provides a tumor aspiration device that can prevent backflow of accumulated fluid, and has the following beneficial effects: 1. The tumor extraction device that prevents backflow of accumulated fluid involves rotating a threaded column. When the threaded column rotates, it drives the first fixed column to move along the threaded column via a bearing block. When the first fixed column moves, it drives the piston block to slide inside the extraction chamber. Furthermore, when the piston block moves, it slides in the first fixed plate via a first sliding column, thus maintaining a stable state when the piston block moves.

[0014] 2. In this tumor aspiration device that prevents backflow of effusion, when the piston block moves, the space between the piston block and the inlet channel is sealed. When the piston block moves, it will drive the first sliding plate to move on the second sliding column. This will also cause the first sliding plate to separate from the pad and the inlet channel, so that the inlet channel is filled with suction. In this way, the patient's tumor effusion will flow through the puncture needle and the suction tube into the aspiration chamber, and then through the outlet channel and the connecting hose into the reservoir.

[0015] 3. This tumor aspiration device, which prevents backflow of effusion, opens the exhaust valve when the effusion in the aspiration chamber is completely removed, and rotates the threaded column in the opposite direction. The piston block will move towards the inlet channel side, and the compressed air in the aspiration chamber will flow out through the exhaust valve, allowing the effusion or air in the inlet channel to flow back into the patient's body, reducing the patient's pain and facilitating the treatment process.

[0016] 4. This tumor extraction device, which prevents backflow of accumulated fluid, connects the storage cylinder to the first fixing block via a connecting column at the top, and connects the connecting hose to the outlet channel via an adjustment box. When the pulling column is pulled to one side, the pulling column will cause the squeezing plate to separate from the inner wall of the adjustment chamber by a certain distance via the second sliding plate. When the connecting hose enters the adjustment chamber, it is released. Under the action of the second return spring, the squeezing plate will squeeze the connecting hose to prevent it from separating from the outlet channel and from the adjustment box. It also facilitates the replacement of the storage cylinder. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a left perspective view of the overall structure of the present invention; Figure 2 This is a perspective view of the overall structure of the present invention on the right side; Figure 3 This is a cross-sectional view of the extraction tube of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the piston block and the left side of the first fixing plate in the extraction cylinder of the present invention; Figure 6 This is a schematic diagram of the piston block and the right side of the first fixing plate in the extraction cylinder of the present invention; Figure 7 This is a schematic diagram of the top of the liquid storage cylinder of the present invention; Figure 8 This is a cross-sectional view of the regulating box of the present invention.

[0019] In the diagram: 1. Extraction tube; 2. Handle; 3. Exhaust valve; 4. Connecting tube; 5. Suction tube; 6. Puncture needle; 7. Adjustment box; 8. First fixing block; 9. Storage tank; 10. Connecting hose; 11. Rotating handle; 12. Threaded shaft block; 13. Threaded column; 14. Discharge channel; 15. Piston block; 16. First sliding column; 17. First fixing column; 18. Threaded groove; 19. First sliding plate; 20. Pad; 21. First fixing plate; 22. First sliding through hole; 23. Second fixing column; 24. Bearing block; 25. Second fixing plate; 26. Second sliding column; 27. First return spring; 28. Inlet channel; 29. ​​Connecting column; 30. Pulling column; 31. Third fixing plate; 32. Third sliding column; 33. Second sliding plate; 34. Second return spring; 35. Squeezing plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-6This invention provides a technical solution: a tumor extraction device that can prevent backflow of accumulated fluid, comprising an extraction cylinder 1, an exhaust valve 3 fixedly installed through the inner wall of the top end of the extraction cylinder 1, a connector cylinder 4 fixedly installed on one side of the extraction cylinder 1, a suction tube 5 snapped into the inside of the connector cylinder 4, a puncture needle 6 fixedly installed at the tail end of the suction tube 5, handles 2 fixedly installed at both the top and bottom of the extraction cylinder 1, a fluid outlet channel 14 penetrating through the bottom end of the extraction cylinder 1, and a threaded shaft fixedly installed at the end of the extraction cylinder 1 away from the connector cylinder 4. Block 12, the bottom end of the extraction cylinder 1 is fixedly installed with a first fixing block 8 and an adjusting box 7 respectively, the bottom ends of two adjacent first fixing blocks 8 are movably connected with connecting columns 29, the bottom ends of two adjacent connecting columns 29 are fixedly installed with liquid storage cylinders 9, the inside of the extraction cylinder 1 is fixedly installed with a first fixing plate 21, the inside of the first fixing plate 21 is movably installed with a first fixing column 17, the tail end of the first fixing column 17 is fixedly installed with a piston block 15, and the adjacent sides of the extraction cylinder 1 and the insertion cylinder 4 are fixedly installed with liquid inlet channels 28.

[0022] Please see Figures 3-4 In this embodiment, the extraction cylinder 1 has an extraction cavity inside. The inner wall of the extraction cavity is fixedly installed with a second fixing post 23 and a second fixing plate 25. A second sliding post 26 is fixedly installed between one side of the second fixing plate 25 and the inner wall of the extraction cavity near the liquid inlet channel 28. A first return spring 27 and a first sliding plate 19 are movably installed on the outer side of the second sliding post 26. The first sliding plate 19 is fixedly connected to the first return spring 27. The first sliding plate 19 always slides on the second sliding post 26 and will not deviate.

[0023] A pad 20 is fixedly installed on the side of the first sliding plate 19 near the liquid inlet channel 28. The pad 20 is slidably connected to the opening direction of the liquid inlet channel 28, and the diameter of the pad 20 is larger than the diameter of the liquid inlet channel 28. The pad 20 is made of silicone sealing gasket. When the pad 20 and the liquid inlet channel 28 come into contact with each other, the liquid inlet channel 28 can be effectively blocked to prevent the liquid inlet channel 28 from communicating with the extraction chamber.

[0024] The exhaust valve 3 and the liquid outlet channel 14 are symmetrically distributed about the center of the extraction cylinder 1. The second fixing plate 25 is located on the same side as the exhaust valve 3 and the liquid outlet channel 14. The edge of the first sliding plate 19 is slidably connected to the exhaust valve 3 and the liquid outlet channel 14 respectively. The first sliding plate 19 can discharge the air pressure between the first sliding plate 19 and the liquid inlet channel 28 in the extraction chamber through the exhaust valve 3, and can also discharge into the liquid storage cylinder 9 through the liquid outlet channel 14.

[0025] Please see Figures 5-6In this embodiment, the piston block 15 is located on the other side of the second fixed plate 25. A first sliding column 16 is fixedly installed on the side of the piston block 15 away from the second fixed plate 25. Each first sliding column 16 passes through the first fixed plate 21 and is not connected to the inner wall of the extraction cavity near the threaded shaft block 12.

[0026] In this embodiment, the first fixing post 17 has a threaded groove 18 inside, and a threaded post 13 is threadedly connected inside the threaded groove 18. The threaded post 13 passes through the extraction cylinder 1 and is located at the threaded shaft block 12. A rotating handle 11 is fixedly installed at the tail end of the threaded post 13. A bearing block 24 is fixedly installed between two adjacent second fixing posts 23, and the bearing block 24 is movably connected to one end of the threaded post 13. The first fixing post 17 has a first sliding through hole 22 that matches the second fixing post 23 inside, and the first sliding post 16 passes through the second fixing post 23.

[0027] The working principle of this embodiment is as follows: When in use, the threaded column 13 is rotated. When the threaded column 13 rotates, it will drive the first fixed column 17 to move along the threaded column 13 through the bearing block 24. When the first fixed column 17 moves, it will drive the piston block 15 to slide inside the extraction cavity. When the piston block 15 moves, it will slide in the first fixed plate 21 through the first sliding column 16, so that the piston block 15 remains stable when it moves. When the piston block 15 moves, the space between the piston block 15 and the pad 20 is sealed. When the piston block 15 moves, it will drive the first sliding plate 19 to move on the second sliding column 26. This will also cause the first sliding plate 19 to separate the pad 20 from the inlet channel 28, so that the inlet channel 28 is filled with suction. In this way, the patient's tumor fluid will flow into the extraction chamber through the puncture needle 6 and the suction tube 5, and flow into the reservoir 9 through the outlet channel 14 and the connecting hose 10. When the fluid in the extraction chamber is completely extracted, the exhaust valve 3 is opened and the threaded column 13 is rotated in the opposite direction. The piston block 15 will move towards the inlet channel 28. The compressed air in the extraction chamber will flow out through the exhaust valve 3, allowing the fluid or air in the inlet channel 28 to flow back into the patient's body, reducing the patient's pain and facilitating the treatment process. Example 2: Please refer to Figures 7-8This invention provides a technical solution: a tumor extraction device that can prevent backflow of accumulated fluid, comprising an extraction cylinder 1, an exhaust valve 3 fixedly installed through the inner wall of the top end of the extraction cylinder 1, a connector cylinder 4 fixedly installed on one side of the extraction cylinder 1, a suction tube 5 snapped into the inside of the connector cylinder 4, a puncture needle 6 fixedly installed at the tail end of the suction tube 5, handles 2 fixedly installed at both the top and bottom of the extraction cylinder 1, a fluid outlet channel 14 penetrating through the bottom end of the extraction cylinder 1, and a threaded shaft fixedly installed at the end of the extraction cylinder 1 away from the connector cylinder 4. Block 12, the bottom end of the extraction cylinder 1 is fixedly installed with a first fixing block 8 and an adjusting box 7 respectively, the bottom ends of two adjacent first fixing blocks 8 are movably connected with connecting columns 29, the bottom ends of two adjacent connecting columns 29 are fixedly installed with liquid storage cylinders 9, the inside of the extraction cylinder 1 is fixedly installed with a first fixing plate 21, the inside of the first fixing plate 21 is movably installed with a first fixing column 17, the tail end of the first fixing column 17 is fixedly installed with a piston block 15, and the adjacent sides of the extraction cylinder 1 and the insertion cylinder 4 are fixedly installed with liquid inlet channels 28.

[0028] In this embodiment, a connecting hose 10 is fixedly installed at the top of the liquid storage cylinder 9. The connecting hose 10 passes through the regulating box 7 and is connected to the liquid outlet channel 14.

[0029] In this embodiment, the regulating box 7 has an regulating cavity inside. A third fixing plate 31 is fixedly installed on the inner wall of the regulating cavity. A third sliding column 32 is fixedly installed between one side of two adjacent third fixing plates 31 and the inner wall of the regulating cavity. A second sliding plate 33 is movably installed on the outer side of the third sliding column 32. A pulling column 30 is fixedly installed on one side of the second sliding plate 33, and a second return spring 34 is movably installed on the outer side of the pulling column 30. The two ends of the second return spring 34 are fixedly connected to the second sliding plate 33 and the inner wall of the regulating cavity, respectively. A squeezing plate 35 is fixedly installed on the other end of the second sliding plate 33. The squeezing plate 35 is in contact with the connecting hose 10, and the shape of the squeezing plate 35 is the same as that of the connecting hose 10.

[0030] The working principle of this embodiment is as follows: The liquid storage cylinder 9 is connected to the first fixing block 8 through the connecting column 29 at the top. The connecting hose 10 is connected to the liquid outlet channel 14 through the adjustment box 7. The pulling column 30 is pulled to one side. The pulling column 30 will cause the squeezing plate 35 to separate from the inner wall of the adjustment cavity by a certain distance through the second sliding plate 33. When the connecting hose 10 enters the adjustment cavity, it is released. Under the action of the second return spring 34, the squeezing plate 35 will squeeze the connecting hose 10 to prevent the connecting hose 10 from separating from the liquid outlet channel 14 and prevent it from falling out of the adjustment box 7.

Claims

1. A tumor extraction device that prevents backflow of accumulated fluid, comprising an extraction cylinder (1), characterized in that: An exhaust valve (3) is fixedly installed through the inner wall of the top of the extraction cylinder (1). A connector cylinder (4) is fixedly installed on one side of the extraction cylinder (1). A suction tube (5) is snapped into the inside of the connector cylinder (4). A puncture needle (6) is fixedly installed at the tail end of the suction tube (5). A handle (2) is fixedly installed at both the top and bottom of the extraction cylinder (1). A liquid outlet channel (14) is opened through the bottom of the extraction cylinder (1). A threaded shaft block (12) is fixedly installed at the end of the extraction cylinder (1) away from the connector cylinder (4). The bottom of the extraction cylinder (1) is respectively fixed with... The first fixing block (8) and the regulating box (7) are installed. The bottom ends of the two adjacent first fixing blocks (8) are movably connected to the connecting column (29). The bottom ends of the two adjacent connecting columns (29) are fixedly installed with the liquid storage cylinder (9). The inside of the extraction cylinder (1) is fixedly installed with the first fixing plate (21). The inside of the first fixing plate (21) is movably installed with the first fixing column (17). The tail end of the first fixing column (17) is fixedly installed with the piston block (15). The adjacent sides of the extraction cylinder (1) and the insertion cylinder (4) are fixedly installed with the liquid inlet channel (28). The extraction cylinder (1) has an extraction cavity inside. The inner wall of the extraction cavity is fixedly installed with a second fixed column (23) and a second fixed plate (25). A second sliding column (26) is fixedly installed between one side of the second fixed plate (25) and the inner wall of the extraction cavity near the liquid inlet channel (28). A first return spring (27) and a first sliding plate (19) are movably installed on the outer side of the second sliding column (26). The first sliding plate (19) and the first return spring (27) are fixedly connected. A pad (20) is fixedly installed on the side of the first sliding plate (19) near the liquid inlet channel (28). The pad (20) is slidably connected to the opening direction of the liquid inlet channel (28), and the diameter of the pad (20) is larger than the diameter of the liquid inlet channel (28). The pad (20) is made of silicone sealing gasket. When the pad (20) is in contact with the liquid inlet channel (28), it can block the liquid inlet channel (28). The exhaust valve (3) and the liquid outlet channel (14) are symmetrically distributed about the center of the extraction cylinder (1). The second fixing plate (25) is located on the same side of the exhaust valve (3) and the liquid outlet channel (14), and the edge of the first sliding plate (19) is slidably connected to the exhaust valve (3) and the liquid outlet channel (14) respectively. A connecting hose (10) is fixedly installed at the top of the liquid storage cylinder (9). The connecting hose (10) passes through the regulating box (7) and is connected to the liquid outlet channel (14). The regulating box (7) has an regulating cavity inside. A third fixing plate (31) is fixedly installed on the inner wall of the regulating cavity. A third sliding column (32) is fixedly installed between one side of two adjacent third fixing plates (31) and the inner wall of the regulating cavity. A second sliding plate (33) is movably installed on the outer side of the third sliding column (32). A pulling column (30) is fixedly installed on one side of the second sliding plate (33), and a second return spring (34) is movably installed on the outer side of the pulling column (30). The two ends of the second return spring (34) are fixedly connected to the second sliding plate (33) and the inner wall of the regulating cavity, respectively. A squeezing plate (35) is fixedly installed on the other end of the second sliding plate (33). The squeezing plate (35) is in contact with the connecting hose (10), and the shape of the squeezing plate (35) is the same as that of the connecting hose (10).

2. The tumor extraction device for preventing backflow of accumulated fluid according to claim 1, characterized in that: The piston block (15) is located on the other side of the second fixed plate (25). A first sliding column (16) is fixedly installed on the side of the piston block (15) away from the second fixed plate (25). Each first sliding column (16) passes through the first fixed plate (21), and the first sliding column (16) is not connected to the inner wall of the extraction cavity near the threaded shaft block (12).

3. The tumor extraction device for preventing backflow of accumulated fluid according to claim 2, characterized in that: The first fixed column (17) has a threaded groove (18) inside, and a threaded column (13) is threadedly connected inside the threaded groove (18). The threaded column (13) passes through the extraction cylinder (1) and is located on the threaded shaft block (12). A rotating handle (11) is fixedly installed at the tail end of the threaded column (13). A bearing block (24) is fixedly installed between two adjacent second fixed columns (23), and the bearing block (24) is movably connected to one end of the threaded column (13). The first fixed column (17) has a first sliding through hole (22) that matches the second fixed column (23) inside, and the first sliding column (16) passes through the second fixed column (23).

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