An abdominal surgery suction device

Abstract

The application relates to the technical field of abdominal surgery, in particular to an abdominal surgery suction device, which comprises a placing outer frame body, two air cylinders are mounted on the outer wall of the placing outer frame body, a first transmission gear is rotationally arranged at the output end of each of the two air cylinders, a first fixed frame is rotationally arranged at one end of the first transmission gear, a first horizontal pipe is fixedly connected to the outer wall of the first fixed frame, and a first suction disc is fixedly connected to one end of the first horizontal pipe. The abdominal surgery suction device, the two first suction discs on the two sides can pull the two outer walls of a cavity liquid drainage bag in opposite directions, so that the two sides of the cavity liquid drainage bag are separated from the close inner wall, and in the separation process, the space in the cavity liquid drainage bag is continuously increased, the negative pressure in the cavity liquid drainage bag is also increased, and the negative pressure in the cavity liquid drainage bag can help the effusion in a drainage tube to enter the cavity liquid drainage bag more smoothly.

Description

Technical Field

[0001] This invention relates to the field of abdominal surgery technology, specifically to a suction device for abdominal surgery. Background Technology

[0002] Currently, abdominal surgery clinics typically use a drainage tube and drainage bag after surgery to drain the fluid in the abdominal cavity into the drainage bag, thereby removing the fluid from the body. Doctors can also judge the patient's recovery by observing the color of the fluid in the drainage bag. Currently, drainage bags on the market are usually vacuum-sealed after leaving the factory for easy storage and stacking. After the drainage tube is inserted into the patient's abdominal cavity, the drainage bag is in a deflated state, and the inner walls of the bag stick together tightly, making it difficult for the accumulated fluid to enter the bag through the drainage tube, thus hindering the flow. Therefore, a suction device is needed to assist in the drainage of the drainage bag. Summary of the Invention

[0003] This invention provides an abdominal surgical suction device that maximizes the smooth drainage of fluid into a drainage bag, solving the problem mentioned in the background art where, after the drainage tube is inserted into the patient's abdominal cavity, the drainage bag is in a deflated state, and the inner walls of the bags stick together tightly, making it difficult for fluid to enter the bag through the drainage tube and hindering its flow. To achieve the above objective, this invention provides the following technical solution: an abdominal surgical suction device, comprising a main body for placing an outer frame, two cylinders mounted on the outer wall of the main body for placing the outer frame, a first transmission gear rotatably mounted on the output end of each of the two cylinders, a first fixing frame rotatably mounted on one end of the first transmission gear, a first horizontal tube fixedly connected to the outer wall of the first fixing frame, and a first suction cup fixedly connected to one end of the first horizontal tube; The outer wall of the first transmission gear is meshed with a second transmission gear. The second transmission gear is rotatably disposed on the inner wall of the outer frame body. A first fixing block is rotatably disposed at the end of the second transmission gear. A sliding inner plate is slidably disposed on the inner wall of the first fixing block. A sliding sleeve rod is slidably disposed on the outer wall of the sliding inner plate. A second fixing block is fixedly connected to one end of the sliding sleeve rod. A rubber block for pressing the drainage tube is fixedly connected to the outer wall of the second fixing block. The inner wall of the outer frame body is fixedly connected to a second fixed frame, and the inner wall of the second fixed frame is provided with a first abutting block. A fixing plate is fixedly connected to the outer wall of the second fixing frame, and a sliding plate is fixedly connected to the outer wall of the first fixing frame. A third guide rod is slidably arranged on the inner wall of the sliding plate, and one end of the third guide rod is fixed to the outer wall of the fixing plate.

[0004] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: a second horizontal tube is slidably embedded in the inner wall of the first fixing frame, the outer contour of the second horizontal tube matches the inner contour of the first horizontal tube, a piston is fixedly installed at one end of the second horizontal tube, the outer contour of the piston matches the inner contour of the first fixing frame, multiple air outlets are opened on the outer wall of the second horizontal tube, a third return spring is fixed on the outer wall of the piston, the third return spring is sleeved on the outer wall of the second horizontal tube, and the other end of the third return spring is fixed to the inner wall of the first fixing frame.

[0005] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: a pressure plate is fixedly connected to the outer wall of the piston, the outer contour of the pressure plate matches the inner contour of the first transmission gear, and a second suction cup is rotatably provided on the outer wall of the pressure plate; The outer wall of the pressure plate is rotatably provided with a second ball bearing, and the inner wall of the first transmission gear is provided with a spiral groove, and the second ball bearing is slidably disposed on the inner wall of the spiral groove.

[0006] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: a first groove is provided on the outer wall of the first fixing block, a first guide rod is fixedly connected to the inner wall of the first groove, the sliding inner plate is slidably sleeved on the outer wall of the first guide rod, a first return spring is fixedly connected to the outer wall of the sliding inner plate, one end of the first return spring is fixed to the inner wall of the first groove, and the first return spring is sleeved on the outer wall of the first guide rod.

[0007] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: the outer wall of the second fixing block is provided with an annular track groove, and the inner wall of the annular track groove is provided with two sinking grooves; The outer wall of the second transmission gear is fixedly connected to a first guide rod, and the end of the first guide rod is rotatably provided with a first ball bearing. The first ball bearing is slidably disposed on the inner wall of the annular track groove and the sinking groove.

[0008] As an alternative embodiment of the abdominal surgical suction device described in this invention, the inner walls of both the annular track groove and the sinking groove are provided with multiple arc-shaped protrusions, and the arc-shaped protrusions are configured as hemispherical shapes. The outer wall of the second fixing block is fixedly connected to a third fixing block, and the inner wall of the outer frame body is fixedly connected to a fourth fixing block. The outer wall of the fourth fixing block is provided with a second sliding groove, and the third fixing block is slidably disposed on the inner wall of the second sliding groove. There are two third fixing blocks, and the outer wall of the third fixing block is fixed with a second return spring. The outer walls of the two third fixing blocks are fixedly connected by the second return spring.

[0009] As an alternative embodiment of the abdominal surgical suction device described in this invention, a limiting block is fixedly connected to the outer wall of the third fixing block.

[0010] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: a second guide rod is fixedly connected to the outer wall of the first transmission gear, the end of the second guide rod is provided with a first arc surface, a second guide rod is slidably embedded in the inner wall of the first abutment block, the end of the second guide rod is fixed to the inner wall of the second fixing frame, a fourth return spring is sleeved on the outer wall of the second guide rod, one end of the fourth return spring is fixed to the inner wall of the second fixing frame, and the other end of the fourth return spring is fixed to the outer wall of the first abutment block.

[0011] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: an arc-shaped plate is fixed to the outer wall of the second fixing frame, and a plurality of third guide rods are slidably arranged on the inner wall of the arc-shaped plate, the arrangement trajectory of the plurality of third guide rods is matched with the rotation trajectory of the first transmission gear, and a second arc surface is opened at the end of the third guide rod, the outer contour of the second arc surface is matched with the outer contour of the first arc surface.

[0012] As an alternative embodiment of the abdominal surgical suction device of the present invention, wherein: the outer walls of the plurality of third guide rods are fixedly connected with second abutment blocks, the outer walls of the second abutment blocks are provided with first abutment slopes, the outer walls of the first abutment blocks are provided with second abutment slopes, and the outer contours of the first abutment slopes match the outer contours of the second abutment slopes.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, an abdominal surgical suction device, when the first guide rod and the first ball bearing pass through the sinking groove, the first guide rod presses downward against the inner wall of the annular track groove, causing the second fixing block to be subjected to downward force as a whole. The second fixing block, along with the sliding sleeve rod, is subjected to downward force, and the sliding sleeve rod, along with the sliding inner plate, is subjected to downward force. The sliding inner plate compresses the first return spring downward along the outer wall of the first guide rod and slides down along the inner wall of the first slide groove, causing the second fixing block to move down a certain distance. When the first guide rod and the first ball bearing continue to slide into the annular track groove through the sinking groove, the second fixing block will move upward and reset. Therefore, the second fixing block will move down and then rise and reset every once in a while, which helps the accumulated fluid to enter the cavity drainage bag more smoothly.

[0014] In this invention, the first suction cups on both sides of the abdominal surgical suction device pull the outer walls of the cavity fluid drainage bag in opposite directions, causing the inner walls of the cavity fluid drainage bag to separate. During the separation process, the space inside the cavity fluid drainage bag continuously increases, and the negative pressure inside the cavity fluid drainage bag also increases accordingly. The negative pressure inside the cavity fluid drainage bag helps the accumulated fluid in the drainage tube to enter the cavity fluid drainage bag more smoothly.

[0015] In this invention, an abdominal surgical suction device, when the second guide rod moves past the third guide rod, the fourth return spring resets and moves the first abutment block downwards. Thus, when the second guide rod moves circumferentially past multiple third guide rods, it causes the first abutment block to move up and down repeatedly. The up and down reciprocating movement of the first abutment block continuously pushes the lower end of the cavity fluid drainage bag up and down, causing the accumulated fluid in the middle of the cavity fluid drainage bag to flow left and right towards the lower end of the cavity fluid drainage bag due to gravity. This causes the inner wall that is tightly attached to the lower end of the cavity fluid drainage bag to be separated, allowing the accumulated fluid to flow more smoothly into the cavity fluid drainage bag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of a local structure in the middle; Figure 3 For the present invention Figure 1 Enlarged view of the second fixing block and its surrounding structure; Figure 4 This is a front view of the cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the second fixed frame structure; Figure 6 For the present invention Figure 4 Enlarged view of a local structure in the middle; Figure 7 For the present invention Figure 4 Enlarged view of the first transmission gear and its surrounding structure; Figure 8 For the present invention Figure 4 Enlarged view of the fourth fixed block and its surrounding structure.

[0017] In the diagram: 1. Main body of the outer frame; 2. Cylinder; 3. First transmission gear; 4. First fixed frame; 5. Second transmission gear; 6. First fixed block; 7. First slide groove; 8. First guide rod; 9. Sliding inner plate; 10. First return spring; 11. Sliding sleeve rod; 12. First guide rod; 13. First ball bearing; 14. Second fixed block; 15. Annular track groove; 151. Sinking groove; 16. Arc-shaped protrusion; 17. Third fixed block; 18. Rubber block; 19. Fluid drainage bag; 20. Drainage tube; 21. First horizontal tube; 22. First suction cup; 23. Fourth fixed block; 24. Second slide groove; 25. Second return spring; 26. Limiting block; 27. Second horizontal tube; 28. Piston; 29. ​​Air outlet; 30. Third return spring; 301. Pressure plate; 31. Second ball bearing; 32. Spiral groove; 331. Second suction cup; 33. Second fixing frame; 34. First abutment block; 35. Second guide rod; 36. Fourth return spring; 37. Arc plate; 38. Second guide rod; 39. First arc surface; 40. Third guide rod; 41. Second arc surface; 42. Second abutment block; 43. First abutment slope; 44. Second abutment slope; 80. Third guide rod; 81. Fixing plate; 82. Sliding plate. Detailed Implementation

[0018] 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.

[0019] Example 1: This example aims to address the problem that after the drainage tube is inserted into the patient's abdominal cavity, the drainage bag is in a deflated state, and the inner walls of the bag adhere tightly to each other, making it difficult for the accumulated fluid to enter the bag through the drainage tube, thus obstructing the flow. Please refer to [link to example]. Figures 1-8 An abdominal surgical suction device includes a placement outer frame body 1, two cylinders 2 are installed on the outer wall of the placement outer frame body 1, a first transmission gear 3 is rotatably provided at the output end of each of the two cylinders 2, a first fixed frame 4 is rotatably provided at one end of the first transmission gear 3, a first horizontal tube 21 is fixedly connected to the outer wall of the first fixed frame 4, and a first suction cup 22 is fixedly connected to one end of the first horizontal tube 21. The outer wall of the first transmission gear 3 is meshed with the second transmission gear 5. The second transmission gear 5 is rotatably disposed on the inner wall of the outer frame body 1. The end of the second transmission gear 5 is rotatably disposed with the first fixing block 6. The inner wall of the first fixing block 6 is slidably disposed with the sliding inner plate 9. The outer wall of the sliding inner plate 9 is slidably disposed with the sliding sleeve rod 11. One end of the sliding sleeve rod 11 is fixedly connected with the second fixing block 14. The outer wall of the second fixing block 14 is fixedly connected with the rubber block 18 for pressing the drainage tube 20. A second fixing frame 33 is fixedly connected to the inner wall of the outer frame body 1, and a first abutting block 34 is provided on the inner wall of the second fixing frame 33. The outer wall of the second fixed frame 33 is fixedly connected to a fixed plate 81, the outer wall of the first fixed frame 4 is fixedly connected to a sliding plate 82, and the inner wall of the sliding plate 82 is slidably provided with a third guide rod 80, one end of the third guide rod 80 being fixed to the outer wall of the fixed plate 81. The inner wall of the first fixed frame 4 is slidably fitted with a second horizontal tube 27. The outer contour of the second horizontal tube 27 matches the inner contour of the first horizontal tube 21. A piston 28 is fixedly installed at one end of the second horizontal tube 27. The outer contour of the piston 28 matches the inner contour of the first fixed frame 4. Multiple air outlets 29 are opened on the outer wall of the second horizontal tube 27. A third return spring 30 is fixed on the outer wall of the piston 28. The third return spring 30 is sleeved on the outer wall of the second horizontal tube 27. The other end of the third return spring 30 is fixed to the inner wall of the first fixed frame 4. A pressure plate 301 is fixedly connected to the outer wall of the piston 28. The outer contour of the pressure plate 301 matches the inner contour of the first transmission gear 3. A second suction cup 331 is rotatably provided on the outer wall of the pressure plate 301. The outer wall of the pressure plate 301 is rotatably provided with a second ball 31, and the inner wall of the first transmission gear 3 is provided with a spiral groove 32, and the second ball 31 is slidably disposed on the inner wall of the spiral groove 32. The outer wall of the first fixed block 6 is provided with a first sliding groove 7, the inner wall of the first sliding groove 7 is fixedly connected with a first guide rod 8, the sliding inner plate 9 is slidably sleeved on the outer wall of the first guide rod 8, the outer wall of the sliding inner plate 9 is fixedly connected with a first return spring 10, one end of the first return spring 10 is fixed to the inner wall of the first sliding groove 7, and the first return spring 10 is sleeved on the outer wall of the first guide rod 8. The outer wall of the second fixing block 14 is provided with an annular track groove 15, and the inner wall of the annular track groove 15 is provided with two sinking grooves 151. The outer wall of the second transmission gear 5 is fixedly connected to the first guide rod 12, and the end of the first guide rod 12 is rotatably provided with the first ball 13. The first ball 13 is slidably disposed on the inner wall of the annular track groove 15 and the sinking groove 151. The inner walls of both the annular track groove 15 and the sinking groove 151 are provided with multiple arc-shaped protrusions 16, and the arc-shaped protrusions 16 are set in a hemispherical shape. The outer wall of the second fixing block 14 is fixedly connected to the third fixing block 17, and the inner wall of the outer frame body 1 is fixedly connected to the fourth fixing block 23. The outer wall of the fourth fixing block 23 is provided with a second sliding groove 24. The third fixing block 17 is slidably disposed on the inner wall of the second sliding groove 24. There are two third fixing blocks 17. The outer wall of the third fixing block 17 is fixed with a second return spring 25. The outer walls of the two third fixing blocks 17 are fixedly connected by the second return spring 25. The outer wall of the third fixing block 17 is fixedly connected to the limit block 26; A second guide rod 38 is fixedly connected to the outer wall of the first transmission gear 3. The end of the second guide rod 38 is provided with a first arc surface 39. A second guide rod 35 is slidably embedded in the inner wall of the first abutment block 34. The end of the second guide rod 35 is fixed to the inner wall of the second fixed frame 33. A fourth return spring 36 is sleeved on the outer wall of the second guide rod 35. One end of the fourth return spring 36 is fixed to the inner wall of the second fixed frame 33, and the other end of the fourth return spring 36 is fixed to the outer wall of the first abutment block 34. An arc-shaped plate 37 is fixed to the outer wall of the second fixed frame 33. A plurality of third guide rods 40 are slidably arranged on the inner wall of the arc-shaped plate 37. The arrangement trajectory of the plurality of third guide rods 40 matches the rotation trajectory of the first transmission gear 3. A second arc surface 41 is opened at the end of the third guide rod 40. The outer contour of the second arc surface 41 matches the outer contour of the first arc surface 39. The outer walls of multiple third guide rods 40 are fixedly connected with second abutment blocks 42. The outer walls of the second abutment blocks 42 are provided with first abutment slopes 43, and the outer walls of the first abutment blocks 34 are provided with second abutment slopes 44. The outer contours of the first abutment slopes 43 and the second abutment slopes 44 are matched.

[0020] In this embodiment: Currently, abdominal surgery procedures on the market typically use a drainage tube and drainage bag after surgery to guide the fluid in the abdominal cavity into the drainage bag through the drainage tube, thereby draining the fluid from the body. Doctors can also judge the patient's recovery by observing the color of the fluid in the drainage bag. However, since the drainage bags are usually vacuum-sealed after leaving the factory for easy storage and stacking, after the drainage tube is inserted into the patient's abdominal cavity, the drainage bag is in a deflated state, and the inner walls of the bags stick together tightly, making it difficult for the fluid to enter the bag through the drainage tube, thus hindering the flow. To avoid the above situation, during the use of the device, firstly, the end of the drainage tube 20 is inserted into the pre-drilled hole left after the patient's surgery. Then, medical tape is used to fix the position of the end of the drainage tube 20. Next, the cavity fluid drainage bag 19 is placed inside the outer frame body 1, so that the lower end of the cavity fluid drainage bag 19 is placed on the upper surface of the first contact block 34, and the drainage tube 20 is positioned between the two rubber blocks 18. Then, the cylinders 2 on both sides are activated simultaneously. After the cylinders 2 are activated, the first transmission gear 3 at the output end moves closer to each other. As the first transmission gear 3 moves, the first suction cup 22 moves synchronously. The first suction cups 22 on both sides move closer to each other, squeezing the deflated cavity fluid drainage bag 19 in the middle. At this time, as the first suction cups 22 on both sides move closer to each other... At this time, the second horizontal tubes 27 on both sides come into contact with each other, causing the second horizontal tubes 27 to slide along the inner wall of the first horizontal tube 21 away from the first suction cup 22 after being subjected to force. As the first suction cups 22 on both sides approach each other, the first suction cups 22 gradually press and deform against each other, causing some of the air in the first suction cups 22 to be discharged to the surroundings. At this time, as the piston 28 moves along the inner wall of the first fixed frame 4, the space between the piston 28 and the end of the first fixed frame 4 gradually increases, so the negative pressure also gradually increases. This causes the remaining air in the first suction cup 22 to be sucked into the space between the piston 28 and the end of the first fixed frame 4 through the second horizontal tube 27 and the air outlet 29, causing the first suction cups 22 on both sides to adhere tightly to the surface of the cavity fluid drainage bag 19. As the piston 28 moves, the pressure plate 301 also moves synchronously. When the pressure plate 301 moves, it carries the second ball bearing 31, which is rotatably mounted on the outer wall, along with it. The second ball bearing 31 is slidably connected to the inner wall of the spiral groove 32. During its movement, the second ball bearing 31 causes the spiral groove 32 to be stressed. Because the first fixed frame 4 is restricted by the third guide rod 80 during its movement, it cannot rotate. At this time, the first transmission gear 3 rotates due to the stress on the spiral groove 32. When the first transmission gear 3 rotates, it meshes with the second transmission gear 5, which in turn causes the first guide rod 12 on the outer wall to move circumferentially. During its movement, the first guide rod 12 carries the first ball bearing 13 at its end to slide along the annular track groove 15. Since the annular track groove 15 has multiple arc-shaped protrusions 16, when the first ball bearing 13 slides past the arc-shaped protrusions 16, it will exert force on the second fixed block 14. The opposing force causes the second fixing block 14 to be forced along with the third fixing block 17. The third fixing blocks 17 on both sides compress the second return spring 25 along the second slide groove 24, thus bringing them closer together. At this time, the second fixing blocks 14 on both sides are close to each other, and the rubber blocks 18 on both sides are close to each other, pressing the drainage tube 20 between them. The rubber blocks 18 are soft and deformable rubber blocks, which can still deform a distance after being squeezed together. When the first ball 13 and the first guide rod 12 slide past the arc protrusion 16, the second return spring 25 rebounds and brings the third fixing block 17 and the second fixing block 14 back to their original positions. When passing through multiple arc protrusions 16, the rubber blocks 18 are forced to press the drainage tube 20 repeatedly. Pressing the drainage tube 20 causes the accumulated fluid at the pressing part to be squeezed into the cavity fluid drainage bag 19 by external force, so that the accumulated fluid in the drainage tube 20 can pass through quickly, preventing the accumulation of sediment or blood clots and other impurities in the accumulated fluid in the drainage tube 20, which would cause blockage. When the first guide rod 12 and the first ball bearing 13 pass through the sinking groove 151, the first guide rod 12 will press down on the inner wall of the annular track groove 15, causing the second fixing block 14 to be subjected to downward force as a whole. The second fixing block 14, along with the sliding sleeve rod 11, is subjected to downward force, and the sliding sleeve rod 11, along with the sliding inner plate 9, is subjected to downward force. The sliding inner plate 9 compresses the first reset spring 10 downward along the outer wall of the first guide rod 8 and slides down along the inner wall of the first slide groove 7, causing the second fixing block 14 to move down a certain distance. When the first guide rod 12 and the first ball bearing 13 continue to slide into the annular track groove 15 through the sinking groove 151, the second fixing block 14 will move up and reset. Therefore, the second fixing block 14 will move down and then rise and reset every once in a while. Thus, the rubber block 18 on the outer wall of the second fixing block 14 can squeeze and expel air bubbles from a longer section of the drainage tube 20 near the cavity fluid drainage bag 19, helping the accumulated fluid to enter the cavity fluid drainage bag 19 more smoothly. As the piston 28 moves away from the first suction cup 22, the piston 28 moves synchronously with the pressure plate 301. The pressure plate 301, along with the second suction cup 331, eventually adheres to the inner wall of the first transmission gear 3 due to compression, thus restricting the reset of the third reset spring. At this time, the cylinder 2 is activated in reverse, causing the output end of the cylinder 2 to move in reverse. At this time, the first suction cups 22 on both sides will pull the outer walls of the cavity fluid drainage bag 19 in opposite directions, causing the inner walls of the cavity fluid drainage bag 19 to separate. During the separation process, the space inside the cavity fluid drainage bag 19 increases continuously, and the negative pressure inside the cavity fluid drainage bag 19 also increases accordingly. The negative pressure inside the cavity fluid drainage bag 19 can help the accumulated fluid in the drainage tube 20 to enter the cavity fluid drainage bag 19 more smoothly. And when it is no longer necessary to pull the outer wall of the cavity fluid drainage bag 19, the first suction cup 22 is lifted off the surface of the cavity fluid drainage bag 19 by hand, and then the second horizontal tube 27 is pulled outward to cause the second suction cup 331 to move until it moves to release the suction on the inner wall of the first transmission gear 3. At this time, the third reset spring 30 resets and moves the piston 28 reset. The piston 28 moves the pressure plate 301 towards the direction of the first suction cup 22, causing the pressure plate 301 to slide along the inner wall of the spiral groove 32 with the second ball 31 on the outer wall, causing the first transmission gear 3 to rotate in the opposite direction. The first transmission gear 3 rotates in the opposite direction and meshes with the second transmission gear 5 to rotate. At this time, the rubber blocks 18 on both sides can press the drainage tube 20 repeatedly for a period of time, so that the accumulated fluid flows into the cavity fluid drainage bag 19 more smoothly. Furthermore, during the aforementioned operation, in the initial stage of fluid drainage, the first suction cup 22 pulls on the outer wall of the fluid drainage bag 19, which is insufficient to affect the lower part of the fluid drainage bag 19. Therefore, the fluid easily accumulates in the middle part of the stretched fluid drainage bag 19. In order to make the fluid flow more smoothly and increase the negative pressure inside the fluid drainage bag 19, the first transmission gear 3 rotates, which in turn drives the second guide rod 38 to rotate. During the circumferential movement of the second guide rod 38, the first arc surface 39 at its end abuts against the second arc surface 41 at the end of the third guide rod 40, causing the third guide rod 40 to slide against the inner wall of the second fixed frame 33 under force. During the movement of the third guide rod 40 with the second abutting block 42, the fourth fixed block 23 abuts against the second fixed frame 33. At the second contact slope 44 on the outer wall of the first contact block 34, the first contact block 34 is subjected to upward force and moves upward along the second guide rod 35. When the second guide rod 38 moves past the third guide rod 40, the fourth return spring 36 returns to its original position and moves the first contact block 34 downward. In this way, when the second guide rod 38 moves circumferentially past multiple third guide rods 40, it will cause the first contact block 34 to move up and down repeatedly. The up and down reciprocating movement of the first contact block 34 will continuously push the lower end of the cavity fluid drainage bag 19 up and down, causing the accumulated liquid in the middle position of the cavity fluid drainage bag 19 to flow from left to right towards the lower end of the cavity fluid drainage bag 19 due to gravity. This causes the inner wall tightly attached to the lower end of the cavity fluid drainage bag 19 to be separated, allowing the accumulated liquid to flow more smoothly into the cavity fluid drainage bag 19.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technology of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An abdominal surgical suction device, comprising a frame body (1) for placement, characterized in that: Two cylinders (2) are installed on the outer wall of the outer frame body (1). The output end of each cylinder (2) is rotatably provided with a first transmission gear (3). One end of the first transmission gear (3) is rotatably provided with a first fixed frame (4). The outer wall of the first fixed frame (4) is fixedly connected with a first horizontal tube (21). One end of the first horizontal tube (21) is fixedly connected with a first suction cup (22). The outer wall of the first transmission gear (3) is meshed with a second transmission gear (5). The second transmission gear (5) is rotatably provided on the inner wall of the outer frame body (1). The end of the second transmission gear (5) is rotatably provided with a first fixed block (6). The inner wall of the first fixed block (6) is slidably provided with a sliding inner plate (9). The outer wall of the sliding inner plate (9) is slidably provided with a sliding sleeve rod (11). One end of the sliding sleeve rod (11) is fixedly connected with a second fixed block (14). The outer wall of the second fixed block (14) is fixedly connected with a rubber block (18) for pressing the drainage tube (20). The inner wall of the first fixed frame (4) is slidably fitted with a second horizontal tube (27). The outer contour of the second horizontal tube (27) matches the inner contour of the first horizontal tube (21). A piston (28) is fixedly installed at one end of the second horizontal tube (27). The outer contour of the piston (28) matches the inner contour of the first fixed frame (4). The outer wall of the second horizontal tube (27) is provided with multiple air outlets (29). A third return spring (30) is fixedly installed on the outer wall of the piston (28). The third return spring (30) is sleeved on the outer wall of the second horizontal tube (27). The other end of the third return spring (30) is fixed to the inner wall of the first fixed frame (4). A pressure plate (301) is fixedly connected to the outer wall of the piston (28). The outer contour of the pressure plate (301) matches the inner contour of the first transmission gear (3). A second suction cup (331) is rotatably installed on the outer wall of the pressure plate (301). The outer wall of the pressure plate (301) is rotatably provided with a second ball (31), and the inner wall of the first transmission gear (3) is provided with a spiral groove (32). The second ball (31) is slidably disposed on the inner wall of the spiral groove (32). The outer wall of the second fixing block (14) is provided with an annular track groove (15), and the inner wall of the annular track groove (15) is provided with two sinking grooves (151). The outer wall of the second transmission gear (5) is fixedly connected with a first guide rod (12), and the end of the first guide rod (12) is rotatably provided with a first ball (13). The first ball (13) is slidably disposed on the inner wall of the annular track groove (15) and the sinking groove (151). The inner walls of the annular track groove (15) and the sinking groove (151) are provided with multiple arc-shaped protrusions (16), and the arc-shaped protrusions (16) are set in a hemispherical shape. The outer wall of the second fixing block (14) is fixedly connected to the third fixing block (17), and the inner wall of the outer frame body (1) is fixedly connected to the fourth fixing block (23). The outer wall of the fourth fixing block (23) is provided with a second sliding groove (24). The third fixing block (17) is slidably disposed on the inner wall of the second sliding groove (24). There are two third fixing blocks (17). The outer wall of the third fixing block (17) is fixed with a second return spring (25). The outer walls of the two third fixing blocks (17) are fixedly connected by the second return spring (25).

2. The abdominal surgical suction device according to claim 1, characterized in that: The inner wall of the outer frame body (1) is fixedly connected to a second fixed frame (33), and the inner wall of the second fixed frame (33) is provided with a first abutting block (34). The outer wall of the second fixed frame (33) is fixedly connected to a fixed plate (81), and the outer wall of the first fixed frame (4) is fixedly connected to a sliding plate (82). The inner wall of the sliding plate (82) is slidably provided with a third guide rod (80), and one end of the third guide rod (80) is fixed to the outer wall of the fixed plate (81).

3. The abdominal surgical suction device according to claim 2, characterized in that: The outer wall of the first fixed block (6) is provided with a first sliding groove (7), and the inner wall of the first sliding groove (7) is fixedly connected with a first guide rod (8). The sliding inner plate (9) is slidably sleeved on the outer wall of the first guide rod (8). The outer wall of the sliding inner plate (9) is fixedly connected with a first return spring (10). One end of the first return spring (10) is fixed to the inner wall of the first sliding groove (7), and the first return spring (10) is sleeved on the outer wall of the first guide rod (8).

4. The abdominal surgical suction device according to claim 3, characterized in that: The outer wall of the third fixing block (17) is fixedly connected to the limiting block (26).

5. The abdominal surgical suction device according to claim 4, characterized in that: The outer wall of the first transmission gear (3) is fixedly connected to a second guide rod (38), and the end of the second guide rod (38) is provided with a first arc surface (39). The inner wall of the first abutment block (34) is slidably embedded with a second guide rod (35). The end of the second guide rod (35) is fixed to the inner wall of the second fixed frame (33). The outer wall of the second guide rod (35) is fitted with a fourth return spring (36). One end of the fourth return spring (36) is fixed to the inner wall of the second fixed frame (33), and the other end of the fourth return spring (36) is fixed to the outer wall of the first abutment block (34).

6. The abdominal surgical suction device according to claim 5, characterized in that: The outer wall of the second fixed frame (33) is fixed with an arc plate (37), and the inner wall of the arc plate (37) is slidably provided with a plurality of third guide rods (40). The arrangement trajectory of the plurality of third guide rods (40) matches the rotation trajectory of the first transmission gear (3). The end of the third guide rod (40) is provided with a second arc surface (41), and the outer contour of the second arc surface (41) matches the outer contour of the first arc surface (39).

7. The abdominal surgical suction device according to claim 6, characterized in that: The outer walls of the multiple third guide rods (40) are fixedly connected with second abutment blocks (42). The outer walls of the second abutment blocks (42) are provided with first abutment slopes (43), and the outer walls of the first abutment blocks (34) are provided with second abutment slopes (44). The outer contours of the first abutment slopes (43) match the outer contours of the second abutment slopes (44).

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