Abdominal cavity drainage device for hepatobiliary pancreatic surgery

Abstract

The invention relates to the technical field of medical instruments, in particular to an abdominal cavity drainage device for hepatobiliary and pancreatic surgery, which comprises a fixing band, a drainage tube and a flushing tube fixedly connected with the drainage tube, and further comprises a buffer system for assisting the drainage tube in circulation; a fixing assembly used for assisting in fixing the drainage tube is arranged on the fixing band. The fixing assembly comprises a base and a plurality of sliding rods. The base is fixedly connected to the outer wall of the fixing belt. The sliding rods are in sliding fit with the base, and clamping blocks are fixedly connected to the sliding rods; the clamping block fixedly connected to the upper sliding rod is in sliding fit with the lower sliding rod, and the clamping block fixedly connected to the lower sliding rod is in sliding fit with the upper sliding rod. The side, close to the clamping block, of the base is fixedly connected with a connecting plate. Through the design of the extrusion assembly, the inner wall of the drainage tube is extruded, and shaking is generated to remove possible blockages; blockage can be easily flushed out, and smooth drainage is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an abdominal drainage device for hepatobiliary and pancreatic surgery. Background Art

[0002] Abdominal drainage technology is an important surgical treatment method. By placing a drainage tube into the abdominal cavity, it drains the accumulated liquid, gas, necrotic tissue, etc. in the abdominal cavity to the outside, thereby improving the patient's clinical symptoms and promoting wound healing. In hepatobiliary and pancreatic surgery, the abdominal drainage tube can timely drain accumulated fluid, blood, etc., improve blood circulation, prevent infection and necrosis, and thus promote the subsidence of inflammation and wound healing.

[0003] In the prior art, the patent with the publication number of "CN221557038U" discloses a disposable abdominal drainage device; it adopts the design of an independent flushing cavity and a drainage cavity. Although it realizes aseptic flushing, it needs to frequently replace the drainage bag and the flushing pressure is limited by manual operation, and it is unable to handle the blockage in the drainage tube, which may lead to poor drainage effect.

[0004] In summary, how to solve the problem that the drainage tube in the prior art lacks the treatment of blockage and may lead to poor drainage effect has become a difficult problem that needs to be solved urgently in the current field. Therefore, it is necessary to propose an abdominal drainage device for hepatobiliary and pancreatic surgery. Summary of the Invention

[0005] To solve the above problems, the present invention provides an abdominal drainage device for hepatobiliary and pancreatic surgery. Through the design of a squeezing component, it is used to squeeze the inner wall of the drainage tube and generate vibration to remove possible blockages; it helps to flush out the blockages and ensures the smooth progress of drainage.

[0006] To achieve the above object, the technical solution of the present invention is as follows: An abdominal drainage device for hepatobiliary and pancreatic surgery includes a fixing belt, a drainage tube, and a flushing tube. The flushing tube is fixedly connected to the drainage tube, and further includes a buffer system for assisting the flow of the drainage tube; a fixing component for assisting in fixing the drainage tube is provided on the fixing belt.

[0007] The fixing component includes a base and several sliding rods. The base is fixedly connected to the outer wall of the fixing belt; the sliding rods are all slidably matched with the base, and clamping blocks are fixedly connected to the sliding rods; the clamping block fixedly connected to the upper sliding rod is slidably matched with the lower sliding rod, and the clamping block fixedly connected to the lower sliding rod is slidably matched with the upper sliding rod; a connecting plate is fixedly connected to one side of the base close to the clamping block, and a lever is hinged on the connecting plate; clamping blocks are fixedly connected to the sliding rods, and sliding grooves for the clamping blocks to slide are formed on the lever.

[0008] A driving component for driving the lower sliding rod to move is provided on the fixing belt.

[0009] The sliding rod is provided with an extrusion assembly for extruding the drainage tube and a drainage assembly for assisting drainage; the driving assembly is used to drive the extrusion assembly and the drainage assembly to operate synchronously.

[0010] The flushing tube is provided with a flushing assembly for assisting in flushing the abdominal cavity; the rotating assembly for driving the flushing assembly to operate is arranged inside the drainage tube.

[0011] The technical principle of the above solution is as follows:

[0012] The driving assembly drives the lower sliding rod to move. Since the sliding blocks are fixedly connected to the sliding rods, and the sliding grooves for the sliding blocks to slide are formed on the lever, and the lever is hinged to the connecting plate; when the lower sliding rod moves, the upper sliding rod can be driven to move in the opposite direction through the lever. Since the clamping blocks are fixedly connected to the sliding rods, and the clamping blocks are all slidably matched with the opposite sliding rods; when the sliding rods move in the opposite direction synchronously, the clamping blocks can be driven to clamp or release synchronously; thus, the effect of assisting in clamping and fixing the drainage tube by using the clamping blocks is achieved. The extrusion assembly can extrude the blockages on the inner wall of the drainage tube to generate vibrations, so that these blockages are flushed out; through the drainage assembly, drainage can be assisted, and the use of external power devices can be reduced; the rotating assembly can drive the flushing assembly to assist in flushing the abdominal cavity, thereby improving the transmission effect of power.

[0013] The following beneficial effects can be obtained by adopting the above solution:

[0014] 1. Compared with the existing technology lacking fixation for the drainage tube, the driving assembly drives the lower sliding rod to move, and by using the cooperation between the sliding block and the sliding groove on the lever, the upper sliding rod can move in the opposite direction; thus, the clamping blocks on the sliding rods can clamp or release synchronously, so as to achieve the effect of assisting in fixing the drainage tube.

[0015] 2. When the driving assembly moves, it drives the extrusion assembly and the drainage assembly to operate synchronously. The design of the extrusion assembly is used to extrude the drainage tube and generate vibrations to remove possible blockages; compared with the existing technology that requires manual extrusion or the use of special dredging tools, the extrusion assembly helps to flush out the blockages and ensures the smooth progress of drainage. The design of the drainage assembly enables the device to maintain an effective drainage function while reducing the use of external power devices.

[0016] 3. Compared with the existing technology that requires external power for flushing, the rotating assembly drives the flushing assembly to flush the abdominal cavity, improving the uniformity and efficiency of flushing, reducing the possibility of infection, and also improving the drainage effect; it not only helps to remove the residues and pollutants in the abdominal cavity, but also increases the power transmission effect, making the operation of the whole device more efficient and stable.

[0017] Further, the driving component includes a controller and a telescopic member. The controller is used to control the telescopic member to expand and contract. The output shaft of the telescopic member is fixedly connected to the sliding rod below. Both the controller and the telescopic member are fixedly connected to the outer wall of the fixing belt.

[0018] Beneficial effects: The telescopic member is started by the controller to expand and contract. Since the output shaft of the telescopic member is fixedly connected to the sliding rod, and the sliding rod is slidably engaged with the base, the sliding rod can be driven to move by the telescopic member, thereby achieving the effect of power transmission.

[0019] Further, the extrusion component includes an extrusion cylinder, an extrusion rod, and an extrusion plate. The extrusion cylinder is fixedly connected to the outer wall of the fixing belt. The extrusion plate is slidably engaged with the side wall of the extrusion cylinder. One end of the extrusion rod is fixedly connected to the sliding rod below, and the other end of the extrusion rod penetrates through the extrusion cylinder and is fixedly connected to the extrusion plate.

[0020] A number of fixed outer rings are sleeved on the outer wall of the drainage tube, and air rings are fixedly connected to the inner walls of the fixed outer rings. A number of delivery tubes are connected to the side of the extrusion cylinder away from the extrusion rod, and the ends of the delivery tubes away from the extrusion cylinder are all connected to the inside of the air rings. Solenoid valves are connected to the connection parts of the delivery tubes and the air rings, and the controller is used to control the opening and closing of the solenoid valves.

[0021] Beneficial effects: The sliding rod drives the extrusion rod to perform reciprocating motion. When the extrusion rod moves, it drives the extrusion plate to perform synchronous reciprocating motion. When the extrusion plate reciprocates in the extrusion cylinder, suction or thrust can be generated. Since a number of delivery tubes are connected to the extrusion cylinder and the delivery tubes are all connected to the inside of the air rings, the gas inside the air rings can be sucked or transported by the suction or thrust generated by the reciprocating motion of the extrusion plate. By opening the corresponding solenoid valves, the diameter of different segments of the drainage tube can be adjusted, changing the fluid flow rate of that segment, so that the internal blockage is squeezed or washed out by the fluid.

[0022] Further, the drainage component includes a drainage cylinder, a drainage rod, and a drainage plate. The drainage cylinder is fixedly connected to the base. The drainage plate is slidably engaged with the side wall of the drainage cylinder. One end of the drainage rod is fixedly connected to the sliding rod above, and the other end of the drainage rod penetrates through the drainage cylinder and is fixedly connected to the drainage plate.

[0023] An input tube and an output tube are connected to the side of the drainage cylinder away from the drainage rod. First one-way valves are connected to the connection parts of the input tube and the output tube with the drainage cylinder. The end of the input tube away from the drainage cylinder is connected to the drainage tube, and the end of the output tube away from the drainage cylinder is connected to a storage bucket for storing drainage fluid.

[0024] Beneficial effects: By driving the drainage rod to reciprocate through the sliding rod, the drainage rod drives the drainage plate to reciprocate within the drainage cylinder, thereby generating suction or thrust. Since the drainage cylinder is connected to an input pipe and an output pipe, the input pipe is connected to the drainage pipe, and the output pipe is connected to the storage bucket; when the drainage plate generates suction, the drainage fluid inside the drainage pipe can be suctioned into the drainage cylinder, and the drainage fluid suctioned into the drainage cylinder can be transported to the storage bucket through the thrust. The drainage effect of the drainage pipe is achieved through the power of the sliding rod, reducing the use of external power components, thereby reducing the cost of the device.

[0025] Furthermore, the flushing assembly includes an annular cavity and a rotating block, and the rotating block is eccentrically rotatably connected to the inner wall of the annular cavity; the annular cavity is connected to the flushing pipe, and a water storage bucket is connected to the side of the annular cavity away from the flushing pipe; symmetrically slidingly fitted on the rotating block are clamping plates; springs are fixedly connected to the clamping plates, and the ends of the springs away from the clamping plates are fixedly connected to the side wall of the rotating block.

[0026] A liquid discharge assembly for discharging disinfectant is provided inside the rotating block.

[0027] Beneficial effects: By driving the rotating block to rotate through the rotating assembly, since symmetrically slidingly fitted on the rotating block are clamping plates and the rotating block is eccentrically rotatably connected to the inner wall of the annular cavity; when the rotating block rotates, it can drive the clamping plates to rotate around the rotating block. When the clamping plates rotate in the gap between the rotating block and the annular cavity, the fluid in the outer water storage bucket can be stirred into the flushing pipe, thereby realizing the transportation of the outer fluid. The design of the spring enables the clamping plates to be in close contact with the inner wall of the annular cavity, enabling it to stably drive the fluid to flow.

[0028] Furthermore, the rotating assembly includes a fan blade rotatably connected to the inner wall of the drainage pipe, and the fan blade is coaxially fixedly connected to a rotating shaft; the end of the rotating shaft away from the fan blade extends into the flushing pipe and is coaxially fixedly connected to the rotating block.

[0029] Beneficial effects: When the drainage pipe is draining, the drainage fluid flowing inside it can drive the fan blade to rotate. When the fan blade rotates, it can drive the rotating block to rotate through the rotating shaft. And when the fan blade rotates, it can break up blood clots and the like in the drainage fluid, making it easier to carry them out.

[0030] Furthermore, the liquid discharge assembly includes a plurality of liquid discharge cavities embedded in the side wall of the rotating block, and movable plates are slidingly fitted in the liquid discharge cavities; connecting rods are fixedly connected to the movable plates, and the ends of the connecting rods away from the movable plates are fixedly connected to the adjacent clamping plates, and sliding grooves for the connecting rods to move are opened on the rotating block.

[0031] On one side of the liquid discharge cavity away from the connecting rod, an inhalation tube and a liquid discharge tube are both connected. At the connection of the inhalation tube and the liquid discharge tube with the liquid discharge cavity, a second one-way valve is connected; the outer wall of the flushing tube is detachably connected with a liquid storage cavity for storing disinfectant, and one end of the inhalation tube away from the liquid discharge cavity is connected with the liquid storage cavity; one end of the liquid discharge tube away from the liquid discharge cavity is connected with the outside of the rotating block.

[0032] Beneficial effects: During the process of the clamping plate telescoping within the rotating block, the connecting rod can drive the movable plate to reciprocate, and when the movable plate reciprocates within the liquid discharge cavity, suction or thrust can be generated. Since the liquid discharge cavity is connected with an inhalation tube and a liquid discharge tube, the inhalation tube is connected with the liquid storage cavity, and the liquid discharge tube is connected to the outside of the rotating block, the disinfectant inside the liquid storage cavity can be sucked into the liquid discharge cavity when the movable plate generates suction, and then the disinfectant can be discharged through the thrust. In this way, the transportation of the disinfectant is realized, and the disinfectant can be further mixed with the flushing liquid.

[0033] Further, pressure sensors are fixedly connected to the inner walls of the air rings, and the controller is used to receive and store the pressure information sent by the pressure sensors.

[0034] Beneficial effects: The pressure information inside the air rings is monitored in real time through the pressure sensors to ensure that each extrusion action can achieve the expected effect; if there is abnormal pressure, the controller opens the solenoid valve of the corresponding air ring to relieve pressure.

[0035] Further, a plurality of flow rate sensors are fixedly connected to the inner wall of the drainage tube, and the controller is used to receive and store the flow rate information sent by the flow rate sensors.

[0036] Beneficial effects: The flow rate information of the fluid inside the drainage tube is monitored in real time through the flow rate sensors, and the flow rate of the drainage fluid and the turbulent region are calculated using the flow rate differences at multiple nodes, which helps to identify abnormal internal blockages; the opening and closing of the solenoid valves of the corresponding air rings are controlled by the controller to adjust the flow rate inside the drainage tube, and then the blockage is flushed out of the drainage tube.

[0037] Further, the buffer system includes the following modules:

[0038] An information acquisition module, which is used to acquire real-time data and transmit the real-time data to the setting module; the real-time data includes the pressure information inside the air rings and the flow rate information inside the drainage tube.

[0039] A setting module, which is used to set the thresholds of the pressure information and the flow rate information according to the real-time data, and transmit the thresholds of the pressure information and the flow rate information to the control module.

[0040] A control module, which is used to control the telescoping of the telescopic member according to the thresholds of the pressure information and the flow rate information, and control the opening and closing of the corresponding solenoid valves.

[0041] Beneficial effects: The buffer system can monitor the internal pressure of the air ring and the flow rate in the drainage tube in real time, set thresholds based on the pressure and flow rate respectively, and control the opening and closing of the telescopic member and the corresponding solenoid valve, so as to adjust the diameter of the drainage tube, thereby adjusting the flow rate in a specific section specifically, and flushing out the blockage in the drainage tube. In addition, it can adjust the speed of the flow rate in the drainage tube, further improving the drainage effect.

[0042] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0043] Figure 1 It is a top view of the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0044] Figure 2 It is an axonometric view of the fixing component in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0045] Figure 3 It is a cross-sectional view of the annular cavity in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0046] Figure 4 It is a cross-sectional view of the drainage tube in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0047] Figure 5 It is a cross-sectional view of the extrusion component in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0048] Figure 6 It is a cross-sectional view of the drainage component in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0049] Figure 7 It is an axonometric view of the flushing tube in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0050] Figure 8 It is a structural block diagram of the buffer system in the abdominal drainage device for hepatobiliary and pancreatic surgery in the present invention.

[0051] Reference numerals in the accompanying drawings of the specification include: 1, fixing band; 2, drainage tube; 3, flushing tube; 4, sliding rod; 5, clamping block; 6, connecting plate; 7, lever; 8, clamping block; 9, electric push rod; 10, extrusion cylinder; 11, extrusion rod; 12, extrusion plate; 13, fixed outer ring; 14, air ring; 15, drainage cylinder; 16, drainage rod; 17, drainage plate; 18, annular cavity; 19, rotating block; 20, clamping plate; 21, spring; 22, fan blade; 23, liquid discharge cavity; 24, movable plate; 25, connecting rod; 26, liquid storage cavity; 27, base. Detailed implementation manners

[0052] The following is a further detailed description through specific implementation manners:

[0053] Example 1:

[0054] As shown in the appended Figures 1 - 7 figure: A peritoneal drainage device for hepatobiliary and pancreatic surgery includes a fixing band 1, a drainage tube 2, and a flushing tube 3. The flushing tube 3 is fixedly bonded to the drainage tube 2, and further includes a buffer system for assisting the flow of the drainage tube 2; a fixing component for assisting in fixing the drainage tube 2 is provided on the fixing band 1.

[0055] The fixing component includes a base 27 and a plurality of sliding rods 4. The base 27 is fixedly bonded to the outer wall of the fixing band 1; the sliding rods 4 are all slidably engaged with the base 27, and clamping blocks 5 are fixedly clamped on the sliding rods 4; the clamping block 5 fixedly clamped on the upper sliding rod 4 is slidably engaged with the lower sliding rod 4, and the clamping block 5 fixedly clamped on the lower sliding rod 4 is slidably engaged with the upper sliding rod 4; a connecting plate 6 is fixedly connected by screws to one side of the base 27 close to the clamping block 5, and a lever 7 is hinged on the connecting plate 6; clamping blocks 8 are fixedly connected by screws to the sliding rods 4, and a sliding groove for the clamping block 8 to slide is formed on the lever 7.

[0056] A driving component for driving the lower sliding rod 4 to move is provided on the fixing band 1. The driving component includes a controller and a telescopic member. In this embodiment, the telescopic member is an electric push rod 9; the controller is used to control the telescopic movement of the output shaft of the electric push rod 9; the output shaft of the electric push rod 9 is fixedly connected by screws to the lower sliding rod 4, and the controller and the electric push rod 9 are both fixedly bonded to the outer wall of the fixing band 1.

[0057] An extrusion component for extruding the drainage tube 2 and a drainage component for assisting drainage are provided on the sliding rod 4; the driving component is used to drive the extrusion component and the drainage component to operate synchronously.

[0058] Combined with Figure 5 figure, the extrusion component includes an extrusion cylinder 10, an extrusion rod 11, and an extrusion plate 12. The extrusion cylinder 10 is fixedly bonded to the outer wall of the fixing band 1; the extrusion plate 12 is slidably engaged with the side wall of the extrusion cylinder 10, one end of the extrusion rod 11 is fixedly connected by screws to the lower sliding rod 4, and the other end of the extrusion rod 11 penetrates through the extrusion cylinder 10 and is fixedly bonded to the extrusion plate 12.

[0059] A plurality of fixing outer rings 13 are sleeved on the outer wall of the drainage tube 2, and air rings 14 are fixedly bonded to the inner walls of the fixing outer rings 13; a plurality of delivery tubes are connected to the right side of the extrusion cylinder 10, and the other ends of the delivery tubes are all connected to the inside of the air rings 14; electromagnetic valves are connected to the connection parts of the delivery tubes and the air rings 14, and the controller is used to control the opening and closing of the electromagnetic valves.

[0060] Combined with Figure 6As shown in the figure, the drainage component includes a drainage cylinder 15, a drainage rod 16, and a drainage plate 17. The drainage cylinder 15 is fixedly connected to the base 27 by screws; the drainage plate 17 is slidably engaged with the side wall of the drainage cylinder 15. One end of the drainage rod 16 is fixedly connected to the sliding rod 4 located above by screws, and the other end of the drainage rod 16 passes through the drainage cylinder 15 and is fixedly bonded to the drainage plate 17.

[0061] An input pipe and an output pipe are connected to the right side of the drainage cylinder 15. First one-way valves are connected to the joints of the input pipe and the output pipe with the drainage cylinder 15; the other end of the input pipe is connected to the drainage pipe 2, and the other end of the output pipe is connected to a storage bucket (not shown in the figure) for storing the drained liquid.

[0062] A flushing component for assisting in flushing the abdominal cavity is provided on the flushing pipe 3; a rotating component for driving the flushing component to operate is provided in the drainage pipe 2.

[0063] Combined Figure 3 As shown in the figure, the flushing component includes an annular cavity 18 and a rotating block 19. The rotating block 19 is eccentrically rotatably connected to the inner wall of the annular cavity 18; the annular cavity 18 is connected to the flushing pipe 3, and the other side of the annular cavity 18 is connected to a water storage bucket (not shown in the figure); clamping plates 20 are symmetrically slidably engaged on the rotating block 19; springs 21 are fixedly bonded to the clamping plates 20, and the other ends of the springs 21 are fixedly bonded to the side wall of the rotating block 19.

[0064] A liquid discharge component for discharging the disinfectant is provided in the rotating block 19. The liquid discharge component includes a plurality of liquid discharge cavities 23 embedded in the side wall of the rotating block 19. Movable plates 24 are slidably engaged in the liquid discharge cavities 23; connecting rods 25 are fixedly bonded to the movable plates 24, and the other ends of the connecting rods 25 are fixedly bonded to the adjacent clamping plates 20. Sliding grooves for the movement of the connecting rods 25 are provided on the rotating block 19.

[0065] Suction pipes and discharge pipes are connected to the sides of the liquid discharge cavities 23 far from the connecting rods 25. Second one-way valves are connected to the joints of the suction pipes and the discharge pipes with the liquid discharge cavities 23; a liquid storage cavity 26 for storing the disinfectant is detachably clamped and connected to the outer wall of the flushing pipe 3. The ends of the suction pipes far from the liquid discharge cavities 23 are all connected to the liquid storage cavity 26; the ends of the discharge pipes far from the liquid discharge cavities 23 are all connected to the outside of the rotating block 19.

[0066] The rotating component includes a fan blade 22 rotatably connected to the inner wall of the drainage pipe 2. The fan blade 22 is coaxially fixedly clamped with a rotating shaft; the end of the rotating shaft far from the fan blade 22 extends into the flushing pipe 3 and is coaxially fixedly clamped with the rotating block 19.

[0067] The specific implementation process is as follows:

[0068] First, before performing abdominal drainage, the fixing belt 1 is fixed on the outer side of the patient's waist; in this embodiment, the fixing belt 1 is fixed in the form of Velcro. The electric push rod 9 is started by the controller to expand and contract. Since the output shaft of the electric push rod 9 is fixedly connected to the sliding rod 4 by screws, and the sliding rod 4 is slidably matched with the base 27, the sliding rod 4 can be driven to move by the electric push rod 9, so as to achieve the power transmission effect.

[0069] Since the sliding blocks 8 are fixedly connected to the sliding rod 4 by screws, and the sliding grooves for the sliding blocks 8 to slide are formed on the lever 7, and the lever 7 is hinged to the connecting plate 6; when the lower sliding rod 4 moves, the upper sliding rod 4 can be driven to move in the opposite direction by the lever 7. Since the clamping blocks 5 are fixedly clamped on the sliding rod 4, and the clamping blocks 5 are slidably matched with the opposite sliding rod 4; when the sliding rods 4 move synchronously in the opposite direction, the clamping blocks 5 can be driven to clamp or release synchronously; thus, the clamping blocks 5 are used to assist in clamping and fixing the drainage tube 2. Figure 2 For example, when the electric push rod 9 drives the lower sliding rod 4 to move to the right, the lever 7 pushes the upper sliding rod 4 to move to the left; at this time, the clamping blocks 5 on both sides move towards the middle; conversely, the clamping blocks 5 can be expanded to both sides.

[0070] During the movement of the lower sliding rod 4, the sliding rod 4 can drive the extrusion rod 11 to perform reciprocating motion when sliding, and the extrusion rod 11 can drive the extrusion plate 12 to perform reciprocating motion synchronously when moving. When the extrusion plate 12 reciprocates in the extrusion cylinder 10, suction or thrust can be generated. Since the extrusion cylinder 10 is communicated with a plurality of delivery pipes, and the delivery pipes are all communicated with the inside of the air ring 14, the gas inside the air ring 14 can be sucked or delivered by the suction or thrust generated by the reciprocating motion of the extrusion plate 12. By opening and closing the solenoid valves corresponding to the air rings 14 through the controller, the gas is transmitted into the air rings 14 of different segments, and the diameter of the drainage tube 2 of different segments can be adjusted, and the fluid flow rate of this segment can be changed, so that the internal blockage can be squeezed out or washed out by the fluid. For example, by reducing the diameter of the output end of the drainage tube 2 in a certain segment, when the diameter becomes smaller, the drainage fluid continuously accumulates in this segment. After accumulating to a certain extent, the diameter of the output end of the drainage tube 2 is increased. At this time, the drainage fluid accumulated in this segment can generate an instantaneous impact force to carry out the possible blockage inside the drainage tube 2.

[0071] The sliding rod 4 above drives the drainage rod 16 to reciprocate. The drainage rod 16 then drives the drainage plate 17 to reciprocate within the drainage cylinder 15, thereby generating suction or thrust. Since the drainage cylinder 15 is connected to an input pipe and an output pipe, the input pipe is connected to the drainage pipe 2, and the output pipe is connected to the storage bucket; when the drainage plate 17 generates suction, the drainage fluid inside the drainage pipe 2 can be sucked into the drainage cylinder 15, and through the thrust, the drainage fluid sucked into the drainage cylinder 15 can be transported to the storage bucket, achieving the drainage effect on the drainage pipe 2 through the power of the sliding rod 4, reducing the use of external power components, and thus reducing the cost of the device.

[0072] When the drainage pipe 2 is draining, the flowing drainage fluid inside it can drive the fan blade 22 to rotate. When the fan blade 22 rotates, it can drive the rotating block 19 to rotate through the rotating shaft. And when the fan blade 22 rotates, it can break up blood clots or other blockages in the drainage fluid, making it easier to carry them out.

[0073] Since the clamping plates 20 are symmetrically and slidably fitted on the rotating block 19, and the rotating block 19 is eccentrically rotatably connected to the inner wall of the annular cavity 18; when the rotating block 19 rotates, it can drive the clamping plates 20 to rotate around the rotating block 19. When the clamping plates 20 rotate in the gap between the rotating block 19 and the annular cavity 18, they can deflect the fluid in the outer water storage bucket into the flushing pipe 3, thereby realizing the transportation of the outer fluid. Figure 3 For example, when the rotating block 19 rotates clockwise, it can rotate the fluid on the left to the right through the clamping plate 20, thereby transporting the fluid in the annular cavity 18. The design of the spring 21 enables the clamping plate 20 to be in close contact with the inner wall of the annular cavity 18, enabling it to stably drive the fluid to flow.

[0074] During the process of the clamping plate 20 telescoping within the rotating block 19, it can drive the movable plate 24 to reciprocate through the connecting rod 25. When the movable plate 24 reciprocates within the liquid discharge cavity 23, it can generate suction or thrust. Since the liquid discharge cavity 23 is connected to a suction pipe and a liquid discharge pipe, the suction pipe is connected to the liquid storage cavity 26, and the liquid discharge pipe is connected to the outside of the rotating block 19, when the movable plate 24 generates suction, the disinfectant inside the liquid storage cavity 26 can be sucked into the liquid discharge cavity 23, and then through the thrust, the disinfectant can be discharged into the flushing pipe 3. In this way, the transportation of the disinfectant is realized, and the disinfectant can be further mixed with the flushing liquid.

[0075] In the prior art, when the drainage tube 2 is draining, it is usually necessary to add additional power components for drainage or flushing, which increases the cost of the device. In this embodiment, when the electric push rod 9 moves, it drives the extrusion rod 11 and the drainage rod 16 to run synchronously. When the drainage rod 16 moves, it drives the drainage plate 17 to generate suction or thrust in the drainage tube 15, so as to transport the drainage fluid of the drainage tube 2; so that the device can still maintain an effective drainage function while reducing the use of external power devices. When the extrusion rod 11 moves, it can generate suction or thrust to inflate the air ring 14, thereby squeezing the drainage tube 2 and generating shaking to clear possible blockages; it helps to flush out the blockages and ensure smooth drainage.

[0076] The fan blades 22 drive the rotating block 19 to rotate, and the rotating block 19 drives the clamping plate 20 to transport the flushing liquid. The flushing liquid is transported to the abdominal cavity for further flushing, which improves the uniformity and efficiency of the flushing, reduces the possibility of infection, and also improves the drainage effect; it not only helps to remove residues and contaminants in the abdominal cavity, but also increases the effect of power transmission, making the operation of the entire device more efficient and stable.

[0077] Embodiment 2:

[0078] The difference from the above embodiment is that a pressure sensor is fixedly bonded to the inner wall of the balloon 14, and the controller is used to receive and store pressure information sent by the pressure sensor.

[0079] The specific implementation process is as follows: the pressure information inside the air ring 14 is monitored in real time by the pressure sensor to ensure that each squeezing action can achieve the expected effect; if abnormal pressure occurs, the controller opens the solenoid valve corresponding to the air ring 14 to release the pressure.

[0080] Embodiment 3:

[0081] The difference from the above embodiment is that a plurality of flow rate sensors are fixedly bonded to the inner wall of the drainage tube 2, and the controller is used to receive and store the flow rate information sent by the flow rate sensors.

[0082] The specific implementation process is as follows: the flow velocity information of the fluid inside the drainage tube 2 is monitored in real time through a flow velocity sensor, and the flow velocity difference of multiple nodes is used to calculate the flow velocity and turbulent area of ​​the drainage fluid, which helps to identify internal blockage anomalies; the controller starts the opening and closing of the corresponding air circle 14 solenoid valve, adjusts the flow velocity inside the drainage tube 2, and then flushes the blockage out of the drainage tube 2.

[0083] Embodiment 4:

[0084] As attached Figure 8As shown, the difference from the above embodiments is that the buffer system includes an information acquisition module for collecting information, a setting module for setting parameters, and a control module for controlling the operation of electrical components.

[0085] The functions of each module are introduced as follows:

[0086] The information acquisition module is used to collect real-time data and transmit the real-time data to the setting module; the real-time data includes the pressure information inside the balloon 14 and the flow rate information inside the drainage tube 2.

[0087] The setting module is used to set the thresholds of the pressure information and the flow rate information according to the real-time data, and transmit the thresholds of the pressure information and the flow rate information to the control module.

[0088] The control module is used to control the telescopic movement of the electric push rod 9 according to the thresholds of the pressure information and the flow rate information, and control the opening and closing of the corresponding solenoid valve.

[0089] The specific implementation process is as follows: The buffer system monitors the pressure inside the balloon 14 and the flow rate in the drainage tube 2 in real time, sets thresholds based on the pressure and the flow rate respectively, and controls the opening and closing of the electric push rod 9 and the corresponding solenoid valve, which can adjust the diameter of the drainage tube 2, so as to specifically adjust the flow rate in a certain section, and thus flush out the blockage inside the drainage tube 2. And it can change the diameters of different sections of the drainage tube 2, so as to adjust the speed of the flow rate in the drainage tube 2, and further improve the drainage effect.

[0090] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An abdominal drainage device for hepatobiliary and pancreatic surgery, comprising a fixing belt (1), a drainage tube (2) and a flushing tube (3), wherein the flushing tube (3) is fixedly connected to the drainage tube (2), and characterized in that: It also includes a buffer system for assisting the circulation of the drainage tube (2); a fixing component for assisting in fixing the drainage tube (2) is provided on the fixing belt (1); The fixing assembly comprises a base (27) and a plurality of sliding rods (4); the base (27) is fixedly connected to the outer wall of the fixing belt (1); the sliding rods (4) are all slidably matched with the base (27), and the sliding rods (4) are all fixedly connected with a clamping block (5); the clamping block (5) fixedly connected to the upper sliding rod (4) is slidably matched with the lower sliding rod (4), and the clamping block (5) fixedly connected to the lower sliding rod (4) is slidably matched with the upper sliding rod (4); a connecting plate (6) is fixedly connected to the side of the base (27) close to the clamping block (5), and a lever (7) is hinged on the connecting plate (6); a clamping block (8) is fixedly connected to the sliding rod (4), and a sliding groove for the clamping block (8) to slide is provided on the lever (7); The fixing belt (1) is provided with a driving assembly for driving the sliding rod (4) below to move; The sliding rod (4) is provided with an extrusion component for extruding the drainage tube (2) and a drainage component for assisting drainage; the driving component is used to drive the extrusion component and the drainage component to operate synchronously; A flushing assembly for assisting flushing of the abdominal cavity is provided on the flushing tube (3); a rotating assembly for driving the flushing assembly to operate is provided in the drainage tube (2).

2. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 1, characterized in that: The driving assembly comprises a controller and a telescopic member, wherein the controller is used to control the telescopic member to extend and retract; the output shaft of the telescopic member is fixedly connected to the sliding rod (4) below, and the controller and the telescopic member are both fixedly connected to the outer wall of the fixing belt (1).

3. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 2, characterized in that: The extrusion assembly comprises an extrusion cylinder (10), an extrusion rod (11) and an extrusion plate (12); the extrusion cylinder (10) is fixedly connected to the outer wall of the fixing belt (1); the extrusion plate (12) is slidably matched with the side wall of the extrusion cylinder (10); one end of the extrusion rod (11) is fixedly connected to a sliding rod (4) located below; the other end of the extrusion rod (11) passes through the extrusion cylinder (10) and is fixedly connected to the extrusion plate (12); The outer wall of the drainage tube (2) is sleeved with a plurality of fixed outer rings (13), and the inner walls of the fixed outer rings (13) are fixedly connected with air rings (14); the side of the extrusion cylinder (10) away from the extrusion rod (11) is connected with a plurality of delivery pipes, and the ends of the delivery pipes away from the extrusion cylinder (10) are connected with the inside of the air ring (14); the connection points between the delivery pipes and the air ring (14) are connected with electromagnetic valves, and the controller is used to control the opening and closing of the electromagnetic valves.

4. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 3, characterized in that: The drainage assembly comprises a drainage tube (15), a drainage rod (16) and a drainage plate (17); the drainage tube (15) is fixedly connected to the base (27); the drainage plate (17) is slidably matched with the side wall of the drainage tube (15); one end of the drainage rod (16) is fixedly connected to the sliding rod (4) located above; the other end of the drainage rod (16) passes through the drainage tube (15) and is fixedly connected to the drainage plate (17); An input pipe and an output pipe are connected to the side of the drainage tube (15) away from the drainage rod (16), and the connection points between the input pipe and the output pipe and the drainage tube (15) are both connected to a first one-way valve; an end of the input pipe away from the drainage tube (15) is connected to the drainage tube (2), and an end of the output pipe away from the drainage tube (15) is connected to a storage bucket for storing drainage fluid.

5. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 4, characterized in that: The flushing assembly comprises an annular cavity (18) and a rotating block (19), wherein the rotating block (19) is eccentrically rotatably connected to the inner wall of the annular cavity (18); the annular cavity (18) is connected to a flushing pipe (3), and a side of the annular cavity (18) away from the flushing pipe (3) is connected to a water storage bucket; a clamping plate (20) is symmetrically slidably fitted on the rotating block (19); a spring (21) is fixedly connected to the clamping plate (20), and one end of the spring (21) away from the clamping plate (20) is fixedly connected to the side wall of the rotating block (19); A liquid discharge assembly for discharging disinfectant is arranged inside the rotating block (19).

6. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 5, characterized in that: The rotating assembly comprises a fan blade (22) rotatably connected to the inner wall of the drainage tube (2), the fan blade (22) being coaxially fixedly connected to a rotating shaft; an end of the rotating shaft away from the fan blade (22) extends into the flushing tube (3) and is coaxially fixedly connected to the rotating block (19).

7. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 6, characterized in that: The liquid discharge assembly comprises a plurality of liquid discharge cavities (23) embedded in the side wall of the rotating block (19), wherein the liquid discharge cavities (23) are slidably matched with movable plates (24); the movable plates (24) are fixedly connected with connecting rods (25), and the ends of the connecting rods (25) away from the movable plates (24) are fixedly connected with the adjacent clamping plates (20), and the rotating blocks (19) are provided with sliding grooves for the connecting rods (25) to move; The side of the discharge cavity (23) away from the connecting rod (25) is connected to a suction pipe and a discharge pipe, and the connection points between the suction pipe and the discharge pipe and the discharge cavity (23) are connected to a second one-way valve; the outer wall of the flushing pipe (3) is detachably connected to a liquid storage cavity (26) for storing disinfectant, and the end of the suction pipe away from the discharge cavity (23) is connected to the liquid storage cavity (26); the end of the discharge pipe away from the discharge cavity (23) is connected to the outside of the rotating block (19).

8. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 7, characterized in that: The inner wall of the air ring (14) is fixedly connected with a pressure sensor, and the controller is used to receive and store pressure information sent by the pressure sensor.

9. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 8, characterized in that: A plurality of flow rate sensors are fixedly connected to the inner wall of the drainage tube (2), and the controller is used to receive and store flow rate information sent by the flow rate sensors.

10. The abdominal drainage device for hepatobiliary and pancreatic surgery according to claim 9, characterized in that: The buffer system consists of the following modules: An information collection module, used for collecting real-time data and transmitting the real-time data to the setting module; the real-time data includes pressure information inside the air ring (14) and flow rate information inside the drainage tube (2); A setting module, used for setting the thresholds of pressure information and flow rate information according to real-time data, and transmitting the thresholds of pressure information and flow rate information to the control module; The control module is used to control the extension and retraction of the telescopic member according to the threshold values ​​of the pressure information and the flow rate information, and to control the opening and closing of the corresponding solenoid valve.

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