Hepatobiliary surgery drainage device with timed extrusion function

By introducing a timed compression function into the hepatobiliary surgical drainage device, the elastic balloon is automatically compressed using a motor and cam structure, which solves the problem of drainage tube blockage, improves drainage efficiency, and reduces the labor intensity of users.

CN224023957UActive Publication Date: 2026-03-24FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing hepatobiliary surgical drainage devices are prone to blockage during use due to blood and other impurities in the accumulated fluid. Manually pressing the elastic balloon is time-consuming and laborious, increasing the workload of users and resulting in low drainage efficiency.

Method used

A hepatobiliary surgical drainage device with a timed compression function was designed. The timer controller controls the motor to drive the cam to compress the elastic balloon at timed intervals. The compression force is adjusted by combining a bidirectional threaded rod and a slider structure to prevent the drainage tube from becoming blocked and to reduce the intensity of manual operation.

Benefits of technology

It achieves automated timed squeezing function, improves drainage efficiency, reduces the risk of blockage, and reduces the labor intensity and time consumption of users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of drainage devices, and discloses a hepatobiliary surgery drainage device with a timed extrusion function, which comprises a first drainage tube, one end of the first drainage tube is fixedly connected with an elastic balloon, and one end, far away from the first drainage tube, of the elastic balloon is fixedly connected with a second drainage tube. The end, away from the elastic balloon, of the second drainage tube is fixedly connected with a liquid storage bag, a pressing plate is attached to the outer side of the upper portion of the elastic balloon, a cam is attached to the top end of the pressing plate, one side of the cam is fixedly connected with a rotating rod, one end of the rotating rod is fixedly connected with a motor, and a supporting plate is attached to the outer side of the lower portion of the elastic balloon. The bottom end of the supporting plate is fixedly connected with a mounting shell, and one side of the top end of the mounting shell is fixedly connected with a timing controller. By means of the technical scheme, the problems that in the prior art, the elastic balloon cannot be automatically extruded in a timing mode, and consequently a drainage tube is blocked by impurities such as bloodstain existing in hydrops; and the drainage efficiency of the drainage tube is low.
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Description

Technical Field

[0001] This utility model belongs to the technical field of drainage devices, specifically a hepatobiliary surgical drainage device with a timed squeezing function. Background Technology

[0002] Hepatobiliary surgery is a branch of surgery that focuses on the diagnosis, treatment, and prevention of diseases of organs such as the liver, gallbladder, bile ducts, and pancreas. After surgery, drainage devices are often needed to drain the fluid accumulated in the patient's body and reduce the risk of infection.

[0003] Meanwhile, a novel hepatobiliary and pancreatic surgical drainage device with application number 202323264314.6 includes a connecting tube. A drainage tube is fixedly connected to the top of the connecting tube, and an elastic balloon is fixedly connected to the inner side of the connecting tube. A connecting mechanism is movably connected to the bottom of the connecting tube surface. The connecting mechanism includes a connecting sleeve, which is movably connected to the bottom of the connecting tube surface. This novel hepatobiliary and pancreatic surgical drainage device solves the problem of the drainage device being damaged by sharp foreign objects during patient movement or drainage, requiring the drainage tube to be pulled out of the patient's wound for replacement, causing unnecessary pain and slowing down wound healing.

[0004] A novel surgical drainage device for hepatobiliary and pancreatic surgery uses a threaded tube that is movably connected to the inner cavity of a connecting sleeve, facilitating the installation of the fluid collection bag and reducing patient injury during device disassembly. However, during use, the presence of blood and other impurities in the accumulated fluid can easily cause blockage of the drainage tube, resulting in low drainage efficiency. Manually pressing the elastic balloon is not only time-consuming and laborious but also increases the user's workload, making it inconvenient to use.

[0005] Therefore, a hepatobiliary surgical drainage device with a timed squeezing function is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a hepatobiliary surgical drainage device with a timed compression function, which has the advantage of automatically and timed compression of the elastic balloon.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hepatobiliary surgical drainage device with a timed squeezing function, comprising a first drainage tube, an elastic balloon fixedly connected to one end of the first drainage tube, a second drainage tube fixedly connected to the end of the elastic balloon away from the first drainage tube, a fluid storage bag fixedly connected to the end of the second drainage tube away from the elastic balloon, a pressure plate attached to the upper outer side of the elastic balloon, a cam attached to the top of the pressure plate, a rotating rod fixedly connected to one side of the cam, a motor fixedly connected to one end of the rotating rod, a support plate attached to the lower outer side of the elastic balloon, a mounting shell fixedly connected to the bottom end of the support plate, and a timer controller fixedly connected to one side of the top end of the mounting shell.

[0008] Preferably, a bidirectional threaded rod is inserted and connected to the lower part of the mounting housing, a slider is helically connected to the outer side of the bidirectional threaded rod, a support rod is rotatably connected to the inner side of the slider, a support is rotatably connected to the outer side of the end of the support rod away from the slider, a push plate is fixedly connected to the top of the support, and the motor is fixed to the top of the push plate.

[0009] Preferably, a spring is embedded inside the support plate, and a pressure rod is attached to the top of the spring.

[0010] Preferably, a compression ring is fixedly connected to the outer side of the pressure rod, and the compression ring is embedded inside the pressure plate.

[0011] Preferably, a limiting block is fixedly connected to the inner wall of the mounting housing, and a rubber pad is fixedly connected to the bottom end of the limiting block.

[0012] Preferably, one end of the bidirectional threaded rod is fixedly connected to a rotating block, and the rotating block rotates inside the mounting housing.

[0013] Preferably, the push plate is slidably connected to a guide rod, and the guide rod is fixed to the inner wall of the mounting housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model employs a combination of components including a first drainage tube, an elastic balloon, a second drainage tube, a storage bag, a pressure plate, a cam, a rotating rod, a motor, a support plate, a mounting shell, and a timer controller. The timer controller controls the motor to rotate the cam, causing the pressure plate to squeeze the elastic balloon below, thus applying pressure to the drainage tube. This pressure pushes the blood clots or viscous secretions inside the drainage tube, preventing them from accumulating and causing complete blockage. This improves the drainage efficiency of the drainage tube and reduces the workload of the staff.

[0016] 2. This utility model uses a combination of a bidirectional threaded rod, a slider, a support rod, a support, and a push plate to adjust the height of the push plate and change the height of the upper motor and cam, thereby adjusting the squeezing force on the lower elastic balloon. This effectively removes blood clots or viscous secretions from inside the drainage tube, preventing blockage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the mounting shell structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cutting and separation structure of the extrusion module of this utility model;

[0020] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point A;

[0021] Figure 5 This utility model Figure 3 A schematic diagram of the structure at point B.

[0022] In the diagram: 1. First drainage tube; 2. Elastic balloon; 3. Second drainage tube; 4. Liquid storage bag; 5. Pressure plate; 6. Cam; 7. Rotating rod; 8. Motor; 9. Support plate; 10. Mounting housing; 11. Timer controller; 12. Bidirectional threaded rod; 13. Slider; 14. Support rod; 15. Support; 16. Push plate; 17. Spring; 18. Pressure rod; 19. Compression ring; 20. Limiting block; 21. Rubber pad; 22. Rotating block; 23. Guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 5As shown, this utility model provides a hepatobiliary surgical drainage device with a timed squeezing function, including a first drainage tube 1. One end of the first drainage tube 1 is fixedly connected to an elastic balloon 2. The end of the elastic balloon 2 away from the first drainage tube 1 is fixedly connected to a second drainage tube 3. The end of the second drainage tube 3 away from the elastic balloon 2 is fixedly connected to a fluid storage bag 4, which can collect fluid for easy disposal. A pressure plate 5 is attached to the upper outer side of the elastic balloon 2, and a cam 6 is attached to the top of the pressure plate 5. A rotating rod 7 is fixedly connected to one side of the cam 6. One end of the rotating rod 7 is fixedly connected to a motor 8. A support plate 9 is attached to the lower outer side of the elastic balloon 2. The support plate 9 and the pressure plate 5 are both arc-shaped on the side near the elastic balloon 2 and are attached to the outer side of the elastic balloon 2 to facilitate fixing their position. The bottom end of the support plate 9 is fixedly connected to a mounting shell 10. The top side of the mounting shell 10 is fixedly connected to a timer controller 11 to facilitate timed control of the motor 8 to drive the cam 6 to rotate and apply pressure to the elastic balloon 2. This eliminates the need for the patient to manually press the elastic balloon 2, reducing the labor intensity of the staff.

[0025] Specifically, a bidirectional threaded rod 12 is inserted and connected to the lower part of the mounting housing 10. One end of the bidirectional threaded rod 12 is equipped with a handwheel to facilitate the patient's rotation of the bidirectional threaded rod 12. A slider 13 is helically connected to the outer side of the bidirectional threaded rod 12. The slider 13 slides inside the mounting housing 10. A support rod 14 is rotatably connected to the inner side of the slider 13. A support 15 is rotatably connected to the outer side of the support rod 14 away from the slider 13. A push plate 16 is fixedly connected to the top of the support 15, and the motor 8 is fixed to the top of the push plate 16, which serves to connect and support the motor 8.

[0026] Furthermore, a spring 17 is embedded inside the support plate 9, and a pressure rod 18 is attached to the top of the spring 17. The spring 17 can push the pressure rod 18 and the compression ring 19 to rise and push the pressure plate 5 to reset, so that the cam 6 can press the pressure plate 5 again to apply pressure to the elastic balloon 2.

[0027] Furthermore, a compression ring 19 is fixedly connected to the outer side of the pressure rod 18, and the compression ring 19 is embedded inside the pressure plate 5. The pressure plate 5 can push the compression ring 19 to drive the pressure rod 18 to move downward, and the compression ring 19 can also support the pressure plate 5.

[0028] It is worth noting that a limiting block 20 is fixedly connected to the inner wall of the housing 10. A rubber pad 21 is fixedly connected to the bottom end of the limiting block 20. The limiting block 20 can restrict the position of the pressure plate 5, so that it can effectively squeeze the elastic balloon 2 below and prevent the device from shaking and changing the position of the pressure plate 5 during use.

[0029] It is worth noting that a rotating block 22 is fixedly connected to one end of the bidirectional threaded rod 12, and the rotating block 22 rotates inside the mounting housing 10. The cross-sectional area of ​​the rotating block 22 is larger than the cross-sectional area of ​​the bidirectional threaded rod 12, which can restrict the position of the bidirectional threaded rod 12 and prevent it from rotating out of the mounting housing 10.

[0030] It is worth mentioning that the push plate 16 is internally slidably connected with a guide rod 23, and the guide rod 23 is fixed to the inner wall of the mounting housing 10. During the movement of the push plate 16, the guide rod 23 can guide it to prevent it from deviating during the movement and improve stability.

[0031] Among them, the motor 8 and the timing controller 11 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, a controller and a switch, etc., which are not the main technical points of this patent and will not be described in detail.

[0032] Working principle and process:

[0033] When the patient uses the hepatobiliary surgical drainage device, the timer controller 11 controls the motor 8 to rotate. The motor 8 drives the rotating rod 7 to rotate, which in turn drives the cam 6 to rotate. The cam 6 applies pressure to the pressure plate 5, causing it to move downwards gradually and gradually apply pressure to the elastic balloon 2. The elastic balloon 2 applies pressure to the fluid inside the first drainage tube 1 and the second drainage tube 3, pushing away blood clots or viscous secretions to prevent them from accumulating and causing complete blockage. This improves the drainage efficiency of the drainage tubes, allowing the fluid to flow effectively into the reservoir bag 4, reducing the workload of the staff. At the same time, the spring 17 can push the pressure rod 18. As the compression ring 19 rises, it pushes the pressure plate 5 to reset, allowing the cam 6 to press the pressure plate 5 again to apply pressure to the elastic balloon 2. When the compression efficiency of the elastic balloon 2 is not good, the patient can rotate the bidirectional threaded rod 12, causing the slider 13 to slide and the support rod 14 to rotate, thereby controlling the height of the push plate 16. This adjusts the height of the upper motor 8 and the cam 6, thus adjusting the compression force on the lower elastic balloon 2. This effectively removes blood clots or viscous secretions from the drainage tube, preventing blockage. Under the action of the guide rod 23, the push plate 16 can be guided to prevent it from shifting during movement.

[0034] 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.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liver and gall surgery drainage device with a timed compression function, comprising a first drainage tube (1), characterized in that: One end of the first drainage tube (1) is fixedly connected with an elastic balloon (2), one end of the elastic balloon (2) away from the first drainage tube (1) is fixedly connected with a second drainage tube (3), one end of the second drainage tube (3) away from the elastic balloon (2) is fixedly connected with a liquid storage bag (4), the upper outer side of the elastic balloon (2) is provided with a pressing plate (5), the top end of the pressing plate (5) is provided with a cam (6), one side of the cam (6) is fixedly connected with a rotating rod (7), one end of the rotating rod (7) is fixedly connected with a motor (8), the lower outer side of the elastic balloon (2) is provided with a support plate (9), the bottom end of the support plate (9) is fixedly connected with a mounting shell (10), one side of the top end of the mounting shell (10) is fixedly connected with a timing controller (11).

2. The hepatic biliary surgery drainage device with timing extrusion function according to claim 1, characterized in that: The lower part of the mounting shell (10) is connected with a two-way threaded rod (12), the outer side of the two-way threaded rod (12) is spirally connected with a sliding block (13), the inner side of the sliding block (13) is rotatably connected with a support rod (14), the outer side of one end of the support rod (14) away from the sliding block (13) is rotatably connected with a support base (15), the top end of the support base (15) is fixedly connected with a push plate (16), and the motor (8) is fixed on the top end of the push plate (16).

3. The hepatic biliary surgery drainage device with timing extrusion function according to claim 1, characterized in that: The inside of the support plate (9) is inlaid with a spring (17), and the top end of the spring (17) is provided with a pressing rod (18).

4. The hepatic and biliary surgery drainage device with a timed compression function according to claim 3, characterized in that: The outer side of the pressing rod (18) is fixedly connected with a squeezing ring (19), and the squeezing ring (19) is inlaid in the inside of the pressing plate (5).

5. The hepatic and biliary surgery drainage device with a timed compression function according to claim 1, characterized in that: The inner wall of the mounting shell (10) is fixedly connected with a limiting block (20), and the bottom end of the limiting block (20) is fixedly connected with a rubber pad (21).

6. The hepatic and biliary surgery drainage device with a timed compression function according to claim 2, characterized in that: One end of the two-way threaded rod (12) is fixedly connected with a rotating block (22), and the rotating block (22) rotates in the inside of the mounting shell (10).

7. The hepatic and biliary surgery drainage device with a timed compression function according to claim 2, characterized in that: The inside of the push plate (16) is slidably connected with a guide rod (23), and the guide rod (23) is fixed on the inner wall of the mounting shell (10).

Citation Information

Patent Citations

  • Novel drainage device for department of hepatobiliary and pancreatic surgery

    CN221513031U