Special hepatobiliary pancreas anti-blocking drainage device for general surgery doctors

Abstract

The invention discloses a special hepatobiliary and pancreas anti-blocking drainage device for general surgeons. The special hepatobiliary and pancreas anti-blocking drainage device is composed of a hard tube, a drainage accelerating mechanism, a viscous material crushing mechanism and a drainage tube. A puncture drainage needle is arranged at the front end of the hard tube and can puncture the liver, gall and pancreas to-be-drained part of a patient. In the drainage accelerating mechanism, a servo motor drives a turntable to rotate, a bump on the turntable enables a roller to intermittently extrude a hose, one end of the hose pumps liquid, and the other end of the hose discharges the liquid into a hard tube through a bent tube, so that drainage is accelerated and leakage is prevented. In the viscous material crushing mechanism, a micro motor drives a transmission shaft to drive a rotating disc and crushing blades to rotate, viscous materials entering the spherical tank are crushed, and the crushed materials flow into a drainage bag through a drainage pipe. The device is compact in structure, can effectively accelerate drainage of liver, gall and pancreas, prevents blockage, provides convenience for general surgeons, and ensures that the drainage process of a patient is smooth.

Description

Technical Field

[0001] This invention relates to the technical field of hepatobiliary and pancreatic drainage devices, specifically to a hepatobiliary and pancreatic anti-blockage drainage device for general surgeons. Background Technology

[0002] In general surgery, surgical drainage of the hepatobiliary and pancreatic regions is a crucial step in preventing postoperative complications. Traditional drainage devices primarily rely on gravity or passive siphon effect to drain fluids. However, their clinical application often faces two major technical bottlenecks: Firstly, early postoperative drainage often contains large amounts of bloody exudate and tissue debris. These substances easily form biofilms or deposit as blood clots on the inner wall of the drainage tube, leading to a gradual reduction in the lumen diameter or even complete occlusion. For example, after pancreaticoduodenectomy, patients may experience daily drainage volumes of 200-500 ml, with approximately 30% of cases experiencing partial or complete blockage of the drainage tube. This necessitates repeated flushing or tube replacement by medical staff, which not only increases patient suffering but also significantly raises the risk of infection.

[0003] On the other hand, existing drainage devices lack an active unblocking mechanism, only attempting to restore patency through physical methods such as adjusting the patient's position or squeezing the drainage tube. However, these operations often fail to effectively remove deep-seated blockages. Especially when dealing with highly viscous drainage materials (such as fluids containing large amounts of necrotic tissue or purulent secretions), the success rate of conventional unblocking methods is less than 50%, leading to increased intra-abdominal pressure and potentially causing serious complications such as anastomotic leakage and abdominal infection. To address these clinical challenges, there is an urgent need to develop a novel drainage device that combines active anti-blocking functionality with precise flow control to improve the overall therapeutic effect of hepatobiliary and pancreatic surgeries and reduce the incidence of postoperative complications. Summary of the Invention

[0004] To address the shortcomings of the aforementioned background technology, a technical solution is provided for a hepatobiliary and pancreatic anti-blockage drainage device specifically for general surgeons. The device includes a rigid tube, with a puncture and drainage needle fixedly connected to its front end. A drainage acceleration mechanism is provided on the outer wall of the rigid tube, and a viscous material breaking mechanism is fixedly connected to its rear end. A drainage tube is connected to the end of the viscous material breaking mechanism away from the rigid tube, and a drainage bag is connected to the end of the drainage tube.

[0005] The drainage acceleration mechanism includes a housing, a servo motor fixed to the lower surface of the housing, and a turntable rotatably disposed in the inner cavity of the housing. Two protrusions are fixedly connected to the top of the turntable, and end caps are fixed to the outer ends of the protrusions. Rollers are rotatably connected to the inside of the end caps. A flexible tube that contacts the outer surface of the roller is snapped into the inside of the housing, and both ends of the flexible tube penetrate into the inner cavity of the rigid tube.

[0006] The viscous material crushing mechanism includes a spherical tank, a micro motor fixedly connected to the top surface of the spherical tank, and a rotating disk rotatably disposed in the inner cavity of the spherical tank. The output end of the micro motor is connected to a transmission shaft that penetrates into the interior of the spherical tank. The bottom end of the transmission shaft located inside the spherical tank is fixedly connected to the upper surface of the rotating disk. Several crushing blades are fixed in a circular array on both the upper and lower surfaces of the rotating disk.

[0007] In the above technical solution, preferably: a through hole is provided on the outer surface of the rigid tube for both ends of the flexible tube to pass through, and the gap between the through hole and the flexible tube is filled with sealant.

[0008] In the above technical solution, preferably, two sleeves are fixedly connected to the side wall of the shell near the rigid tube, and the inner ring of the sleeve is fixed to the outer ring surface of the rigid tube.

[0009] In the above technical solution, preferably, an end cap is fixedly connected to the upper end face of the shell.

[0010] In the above technical solution, preferably: the output shaft of the servo motor extends through the inside of the housing, and the top end of the output shaft of the servo motor is fixedly connected to the bottom surface of the turntable.

[0011] In the above technical solution, preferably: the front end of the hose is the suction end, the rear end of the hose is the discharge end, and the discharge end of the hose is connected to a bend located in the inner cavity of the rigid tube, and the bend and the rigid tube are coaxially arranged, so as to use the suctioned liquid to push the drainage flow inside the rigid tube.

[0012] In the above technical solution, preferably, the front and rear ends of the spherical tank are fixedly connected to the rear end of the rigid pipe and the front end of the drainage pipe, respectively.

[0013] In the above technical solution, preferably: the top surface of the spherical tank is provided with an opening for the drive shaft to pass through and rotate, and a sealed bearing adapted to the drive shaft is provided inside the opening.

[0014] In the above technical solution, preferably, the bottom end of the drive shaft is rotatably connected to the bottom surface of the inner cavity of the spherical tank.

[0015] In the above technical solution, preferably, the outer surface of the rotating disk and the crushing blade has a gap between it and the inner wall of the spherical tank to allow for the flow of the drainage material.

[0016] As can be seen from the above technical solution, the present invention provides a special anti-blockage drainage device for the liver, gallbladder, and pancreas for general surgeons. Compared with the prior art, the present invention has the following beneficial effects:

[0017] This general surgeon's specialized hepatobiliary and pancreatic anti-blockage drainage device features a drainage acceleration mechanism. A servo motor drives a rotating disc, causing rollers to intermittently squeeze the tubing. This actively extracts and propels the drainage fluid, effectively accelerating the drainage process and preventing discomfort and risks caused by fluid accumulation due to slow drainage. The viscous material breaking mechanism, driven by a micro-motor, rotates the disc and breaking up blades to break down viscous substances in the drainage fluid, preventing blockage and ensuring continuous and stable drainage. A sealing design at the connection between the rigid and flexible tubing prevents leakage and reduces the risk of infection. The overall device has a rational structure, with all components working collaboratively to provide reliable drainage for the hepatobiliary and pancreatic areas, improving treatment outcomes, reducing patient suffering, and enhancing the convenience and safety of medical procedures. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of an anti-blockage hepatobiliary-pancreatic drainage device;

[0020] Figure 2 This is a schematic diagram of the drainage tube mechanism;

[0021] Figure 3 A schematic diagram of the drainage acceleration mechanism;

[0022] Figure 4 This is a schematic diagram of the internal structure of the drainage acceleration mechanism;

[0023] Figure 5 This is a schematic diagram of a viscous material crushing mechanism.

[0024] Appendix Figure 1 -Appendix Figure 5 The correspondence between the components is as follows:

[0025] 1. Rigid tube; 2. Drainage acceleration mechanism; 2-1. Shell; 2-2. Flexible tube; 2-3. Bend; 2-4. Sleeve; 2-5. Servo motor; 2-6. Turntable; 2-7. End cap; 2-8. Protrusion; 2-9. End; 2-10. Roller; 3. Viscous material crushing mechanism; 3-1. Spherical tank; 3-2. Drive shaft; 3-3. Rotary disk; 3-4. Crushing blade; 3-5. Micro motor; 4. Drainage tube; 5. Puncture drainage needle. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention.

[0027] Example 1: This embodiment describes a general surgeon's specialized hepatobiliary and pancreatic anti-blockage drainage device, comprising a rigid tube 1. A puncture and drainage needle 5 is fixedly connected to the front end of the rigid tube 1 for puncturing and entering the patient's body at the site requiring drainage. A drainage acceleration mechanism 2 is installed on the outer wall of the rigid tube 1, and a viscous substance breaking mechanism 3 is fixedly connected to the rear end. The end of the viscous substance breaking mechanism 3 away from the rigid tube 1 is connected to a drainage tube 4, and the end of the drainage tube 4 is connected to a drainage bag for collecting the drained fluid. In the drainage acceleration mechanism 2, a housing 2-1 is fixed to the outside of the rigid tube 1 by two sleeves 2-4. The inner ring of the sleeves 2-4 is tightly connected to the outer ring surface of the rigid tube 1, ensuring the stability of the housing 2-1. A servo motor 2-5 is fixed to the lower surface of the housing 2-1, with its output shaft penetrating into the interior of the housing 2-1 and its top end fixedly connected to the bottom surface of a turntable 2-6. Two protrusions 2-8 are fixed to the top of the turntable 2-6, and an end 2-9 is fixed to the outer end of each protrusion 2-8. A roller 2-10 is rotatably connected inside the end 2-9. A through hole is made on the outer surface of the rigid tube 1. The two ends of the flexible tube 2-2 pass through the through hole and enter the inner cavity of the rigid tube 1. The gap between the through hole and the flexible tube 2-2 is filled with sealant to prevent liquid leakage. The flexible tube 2-2 is snapped into the inside of the housing 2-1 and contacts the outer surface of the roller 2-10. The front end of the flexible tube 2-2 is the liquid suction end, and the rear end is the liquid discharge end. The liquid discharge end is connected to the bent tube 2-3 located in the inner cavity of the rigid tube 1. The bent tube 2-3 is arranged coaxially with the rigid tube 1. The end cap 2-7 is fixed on the upper end face of the housing 2-1 to protect the internal structure. In the viscous material crushing mechanism 3, the front and rear ends of the spherical tank 3-1 are fixedly connected to the rear end of the rigid tube 1 and the front end of the drainage pipe 4, respectively. The top surface of the spherical container 3-1 has an opening and a built-in sealed bearing. A micro motor 3-5 is fixed to the top surface of the spherical container 3-1, and its output end is connected to a drive shaft 3-2. The drive shaft 3-2 passes through the opening and rotates and is sealed through the sealed bearing. The bottom end of the drive shaft 3-2 is rotatably connected to the bottom surface of the inner cavity of the spherical container 3-1, and the bottom end is fixedly connected to the upper surface of the rotating disk 3-3. Several crushing blades 3-4 are fixed in a ring array on the upper and lower surfaces of the rotating disk 3-3. There is a gap between the outer surface of the rotating disk 3-3 and the outer surface of the crushing blades 3-4 and the inner wall of the spherical container 3-1 to allow drainage flow. In use, the puncture drainage needle 5 is inserted into the area of ​​the liver, gallbladder and pancreas where drainage is needed. The servo motor 2-5 is started, which drives the rotating disk 2-6 to rotate, causing the roller 2-10 to intermittently squeeze the tubing 2-2. The suction end of the tubing 2-2 draws out the liquid, and the discharge end discharges the liquid into the inner cavity of the rigid tube 1 through the bend 2-3, pushing the drainage flow in the rigid tube 1 and accelerating the drainage process. Meanwhile, if there is viscous material in the drainage material, the micro motor 3-5 is started, which drives the transmission shaft 3-2 and the rotating disk 3-3 to rotate. The crushing blades 3-4 crush the viscous material, allowing it to pass smoothly through the spherical tank 3-1 into the drainage pipe 4, and finally flow into the drainage bag.

[0028] Example 2: The overall structure of the general surgeon's hepatobiliary and pancreatic anti-blockage drainage device in this example is similar to that in Example 1. The front end of the rigid tube 1 is connected to a puncture and drainage needle 5, and a drainage acceleration mechanism 2 is located on the outside. The rear end is connected to a viscous material breaking mechanism 3, which in turn connects to a drainage tube 4 and a drainage bag. In the drainage acceleration mechanism 2, the housing 2-1 is securely mounted on the rigid tube 1 via a sleeve 2-4. A servo motor 2-5 is fixed to the lower surface of the housing 2-1, and its output shaft is connected to a turntable 2-6. The protrusion 2-8, end 2-9, and roller 2-10 on the turntable 2-6 have the same structure as in Example 1. The flexible tube 2-2 passes through the through-hole of the rigid tube 1 and is snapped into the housing 2-1, contacting the roller 2-10. The drainage end communicates with the inner cavity of the rigid tube 1 via a bend 2-3, and the end cap 2-7 seals the housing 2-1. Regarding the viscous material crushing mechanism 3, the spherical tank 3-1 is connected to the rigid pipe 1 and the drainage pipe 4. A sealed bearing is installed at the top opening. A micro motor 3-5 drives the transmission shaft 3-2 to rotate. The transmission shaft 3-2 is connected to the rotating disk 3-3. The crushing blades 3-4 on the rotating disk 3-3 are spaced apart from the inner wall of the tank. The difference lies in that, in this embodiment, the rotation speed of the servo motor 2-5 can be adjusted according to the viscosity and flow rate of the drained material. When the drained material is relatively thin and the flow rate is large, the rotation speed of the servo motor 2-5 is reduced to decrease the squeezing frequency of the hose 2-2 and avoid excessive suction. When the drained material is viscous and the flow rate is small, the rotation speed of the servo motor 2-5 is increased to enhance the squeezing effect on the hose 2-2 and accelerate the drainage. Simultaneously, the rotation speed of the micro motor 3-5 can also be adjusted according to the condition of the viscous material. For viscous materials with high hardness and difficult to crush, the rotation speed of the micro motor 3-5 is increased to allow the crushing blades 3-4 to more effectively crush the viscous material and prevent blockage of the drainage device.

[0029] Example 3: The general surgeon-specific hepatobiliary and pancreatic anti-blockage drainage device of this example also includes a rigid tube 1, a puncture drainage needle 5, a drainage acceleration mechanism 2, a viscous substance crushing mechanism 3, a drainage tube 4, and a drainage bag. In the drainage acceleration mechanism 2, the housing 2-1 is fixed to the rigid tube 1 through a sleeve 2-4. A servo motor 2-5 drives a turntable 2-6. Rollers 2-10 on the turntable 2-6 squeeze the flexible tube 2-2. Both ends of the flexible tube 2-2 pass through the rigid tube 1 and are connected to bends 2-3. End caps 2-7 protect the inside of the housing 2-1. In the viscous substance crushing mechanism 3, a spherical tank 3-1 connects the various components. A micro motor 3-5 drives the transmission shaft 3-2 and the rotating disk 3-3 to rotate. Crushing blades 3-4 crush the viscous substance.

[0030] The unique feature of this embodiment is the addition of a monitoring and feedback system. A pressure sensor is installed inside the rigid tube 1 near the puncture and drainage needle 5 to monitor the fluid pressure at the drainage site. When the pressure sensor detects an abnormally high pressure, it indicates that drainage may be obstructed, and a signal is sent back to the control system. Upon receiving the signal, the control system first increases the speed of the servo motors 2-5 to enhance the effect of the drainage acceleration mechanism 2, accelerating the flow of drainage fluid. If the pressure still does not return to normal, the control system further increases the speed of the micro motors 3-5 to enhance the ability of the viscous material breaking mechanism 3 to break up viscous materials, ensuring unobstructed drainage and avoiding discomfort and risks to the patient due to blockage. Simultaneously, a liquid level sensor is installed on the drainage bag. When the liquid in the drainage bag is close to full, the liquid level sensor sends a signal to remind medical staff to replace the drainage bag in time.

[0031] Based on the above description, the workflow of this technical solution is as follows: First, the puncture and drainage needle 5 at the front end of the rigid tube 1 is inserted into the location in the patient's liver, gallbladder, and pancreas that requires drainage, thereby establishing a connection channel with the area to be drained. Then, the servo motor 2-5 in the drainage acceleration mechanism 2 is activated. The output shaft of the servo motor 2-5 rotates, driving the turntable 2-6, which is fixedly connected to it, to rotate within the cavity of the housing 2-1. When the turntable 2-6 rotates, the two protrusions 2-8 fixed at its top rotate accordingly, thereby driving the end 2-9 fixed to the outer end of the protrusion 2-8 and the roller 2-10 rotatably connected inside the end 2-9 to move. Because the flexible tube 2-2 is engaged inside the housing 2-1 and in contact with the outer surface of the roller 2-10, the roller 2-10 moves... During the process, the hose 2-2 will be squeezed intermittently. The front end of the hose 2-2 is the liquid extraction end, which draws liquid from the surrounding area when squeezed by the roller 2-10. The rear end is the liquid discharge end. The curved tube 2-3 connected to the liquid discharge end in the inner cavity of the rigid tube 1 discharges the extracted liquid into the inner cavity of the rigid tube 1. The extracted liquid is used to push the drainage flow inside the rigid tube 1, accelerating the overall drainage process. The gap between the through hole opened on the outer surface of the rigid tube 1 for the hose 2-2 to pass through and the hose 2-2 is filled with sealant to prevent liquid leakage. If there is viscous material in the drainage material during the drainage process, the micro motor 3-5 in the viscous material crushing mechanism 3 is activated. The output end of the micro motor 3-5 drives the transmission shaft 3-2 to rotate. The transmission shaft 3-2 rotates inside the spherical tank 3-1 through an opening on the top surface of the spherical tank 3-1 for it to pass through and rotate. The bottom end of the transmission shaft 3-2 inside the spherical tank 3-1 is fixedly connected to the upper surface of the rotating disk 3-3, thereby driving the rotating disk 3-3 to rotate. Several crushing blades 3-4 fixed in a circular array on the upper and lower surfaces of the rotating disk 3-3 will then rotate accordingly. The rotating disc breaks down the viscous material entering the spherical tank 3-1. Because there is a gap between the outer surface of the rotating disc 3-3 and the crushing blade 3-4 and the inner wall of the spherical tank 3-1 for the flow of the material, the crushed material can pass smoothly through this gap and then flow into the drainage bag connected to the end through the drainage pipe 4 which is fixedly connected to the rear end of the spherical tank 3-1, thus completing the entire drainage process. The front end of the spherical tank 3-1 is fixedly connected to the rear end of the rigid pipe 1 to ensure that the material can smoothly enter the spherical tank 3-1 from the rigid pipe 1 for crushing.

[0032] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A special anti-blockage drainage device for the liver, gallbladder, and pancreas used by general surgeons, comprising a rigid tube (1), characterized in that: The front end of the rigid tube (1) is fixedly connected to a puncture and drainage needle (5), a drainage acceleration mechanism (2) is provided on the outer side wall of the rigid tube (1), a viscous substance crushing mechanism (3) is fixedly connected to the rear end of the rigid tube (1), a drainage tube (4) is connected to the end of the viscous substance crushing mechanism (3) away from the rigid tube (1), and a drainage bag is connected to the end of the drainage tube (4). The drainage acceleration mechanism (2) includes a housing (2-1), a servo motor (2-5) fixed on the lower surface of the housing (2-1), and a turntable (2-6) rotatably disposed in the inner cavity of the housing (2-1). Two protrusions (2-8) are fixedly connected to the top of the turntable (2-6). An end (2-9) is fixed on the outer end of the protrusion (2-8). A roller (2-10) is rotatably connected inside the end (2-9). A flexible tube (2-2) that contacts the outer surface of the roller (2-10) is snapped into the inside of the housing (2-1). Both ends of the flexible tube (2-2) penetrate into the inner cavity of the rigid tube (1). The viscous material crushing mechanism (3) includes a spherical tank (3-1), a micro motor (3-5) fixedly connected to the top surface of the spherical tank (3-1), and a rotating disk (3-3) rotatably disposed in the inner cavity of the spherical tank (3-1). The output end of the micro motor (3-5) is connected to a transmission shaft (3-2) that penetrates into the interior of the spherical tank (3-1). The bottom end of the transmission shaft (3-2) located inside the spherical tank (3-1) is fixedly connected to the upper surface of the rotating disk (3-3). Several crushing blades (3-4) are fixedly arranged in a ring array on both the upper and lower surfaces of the rotating disk (3-3).

2. The hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The outer surface of the rigid tube (1) is provided with through holes for the two ends of the flexible tube (2-2) to pass through, and the gap between the through holes and the flexible tube (2-2) is filled with sealant.

3. The hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: Two sleeves (2-4) are fixedly connected to the side wall of the housing (2-1) near the rigid tube (1), and the inner ring of the sleeve (2-4) is fixed to the outer ring surface of the rigid tube (1).

4. The hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: An end cap (2-7) is fixedly connected to the upper end face of the housing (2-1).

5. A hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The output shaft of the servo motor (2-5) extends through the housing (2-1), and the top end of the output shaft of the servo motor (2-5) is fixedly connected to the bottom surface of the turntable (2-6).

6. A hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The front end of the hose (2-2) is the suction end, and the rear end of the hose (2-2) is the discharge end. The discharge end of the hose (2-2) is connected to a bend (2-3) located in the inner cavity of the rigid tube (1). The bend (2-3) and the rigid tube (1) are arranged coaxially to use the suctioned liquid to push the drainage flow inside the rigid tube (1) through.

7. A hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The front and rear ends of the spherical tank (3-1) are fixedly connected to the rear end of the rigid pipe (1) and the front end of the drainage pipe (4), respectively.

8. A hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The top surface of the spherical tank (3-1) is provided with an opening for the drive shaft (3-2) to pass through and rotate, and a sealed bearing adapted to the drive shaft (3-2) is provided inside the opening.

9. A hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The bottom end of the drive shaft (3-2) is rotatably connected to the bottom surface of the inner cavity of the spherical tank (3-1).

10. A hepatobiliary and pancreatic anti-blockage drainage device for general surgeons according to claim 1, characterized in that: The outer surfaces of the rotating disk (3-3) and the crushing blades (3-4) have a spacing between them and the inner wall of the spherical tank (3-1) to allow for the flow of the fluid.

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