A drainage tube assembly for clinical hepatobiliary surgery

Abstract

The utility model discloses a drainage tube subassembly for clinical hepatobiliary surgery relates to drainage tube technical field, including elastic drainage tube, is formed to the fine waist part of the in -body tissue clamping fixed by the upper hopper portion and lower hopper portion of axial intercommunication, the fine waist part of two between formation, the central axis of the suspension ball of elastic hanging in the upper hopper portion coincides with, and moves along the axial direction of the upper hopper portion. The utility model discloses through the fine waist part in the body forms the buckle effect, reduced the risk of accidental falling, and in the case where the fine waist part flow rate is slow and causes liquid level to rise, the suspension ball is moved up through buoyancy, drives the diameter of the traction rod drive movable plate expansion fine waist part, dredges the blocked area. After dredging, the instantaneous force difference makes the suspension ball to swing elastically, forms the sustained peristalsis effect. This peristalsis effect improves the flow rate in the elastic drainage tube, helps to accelerate the discharge of the residual, and avoids the accumulation of liquid retention, thereby keeping the drainage unobstructed, ensures the effective drainage after operation.

Description

Technical Field

[0001] This utility model relates to the field of drainage tube technology, specifically a drainage tube assembly for clinical hepatobiliary surgery. Background Technology

[0002] In the field of clinical hepatobiliary surgery, fluid drainage devices are widely used for fluid drainage and transport. As a core component of fluid drainage, the performance of the drainage tube directly affects the efficiency and effectiveness of fluid drainage.

[0003] Existing drainage pipes typically rely on static pressure difference or external force to drive fluid flow. However, in certain applications, especially in the discharge of high-viscosity liquids, existing drainage pipes often exhibit low flow efficiency, resulting in poor liquid discharge or slow discharge speed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a drainage tube assembly for clinical hepatobiliary surgery.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A drainage tube assembly for clinical hepatobiliary surgery, comprising:

[0007] The elastic drainage tube consists of an upper and lower part that are axially connected, forming a narrow waist between them to fix and secure the internal tissues.

[0008] The suspended ball, which is flexibly suspended in the upper bucket, has its central axis coincident with the central axis of the narrow waist section and moves along the axial direction of the upper bucket.

[0009] Multiple movable plates are hinged to each other in the lower bucket section. The movable end of each movable plate is hinged to the inner side of the inlet of the narrow waist section. A traction rod is provided at the hinge point of each movable plate. The top of the traction rod passes through the inlet of the narrow waist section and is connected to the bottom of the suspended ball.

[0010] During the drainage process, the slow flow rate at the narrow waist causes the liquid level in the upper bucket to rise. The suspended ball is lifted by buoyancy, which pulls the traction rod to drive the movable end of the movable plate to radially expand the narrow waist for unblocking. After unblocking, the instantaneous force difference causes the suspended ball to swing elastically, forming a continuous peristaltic change in the diameter of the elastic drainage tube to promote the discharge of residue.

[0011] Preferably, the maximum radial expansion diameter of the narrow waist is smaller than the flared end diameter of the upper and lower bucket portions.

[0012] Preferably, the diameter of the elastic drainage tube gradually increases along the narrow waist direction, and the increase in diameter is proportional to the radial expansion diameter.

[0013] Preferably, the inlet of the narrow waist section has a tapered flared structure, and its tapered surface matches the contour of the movable end of the movable plate.

[0014] Preferably, the suspended ball is provided with elastic ropes on both sides that are connected to the inner wall of the upper bucket, and the natural length of the elastic ropes makes the bottom of the suspended ball 0.5mm-1mm away from the entrance of the narrow waist when it is suspended.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a narrow waist section to create a locking effect within the body, reducing the risk of accidental dislodgement. When the flow rate in the narrow waist section is slow, causing the fluid level to rise, the suspended ball moves upwards due to buoyancy, driving the traction rod to expand the diameter of the narrow waist section and clear any blockages. After clearing the blockage, the instantaneous force difference causes the suspended ball to elastically oscillate, creating a continuous peristaltic effect. This peristaltic effect increases the flow rate within the elastic drainage tube, helping to accelerate the discharge of residual material and preventing fluid retention, thus maintaining unobstructed drainage and ensuring effective postoperative fluid drainage. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of a cross-sectional structure of the present invention in one state;

[0021] Figure 4 This is a schematic diagram of the second state structure of this utility model.

[0022] The diagram shows the following labels: 1. Elastic drainage tube; 11. Upper bucket; 12. Lower bucket; 13. Narrow waist section; 2. Suspended ball; 21. Elastic rope; 3. Movable plate; 31. Traction rod. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example

[0025] like Figures 1-4 As shown, a drainage tube assembly for clinical hepatobiliary surgery includes:

[0026] The elastic drainage tube 1 is composed of an upper funnel 11 and a lower funnel 12 connected axially, with a narrow waist 13 between them for fixing and positioning the tissues in the body.

[0027] The suspended ball 2, which is flexibly suspended in the upper bucket 11, has its central axis coincident with the central axis of the narrow waist 13 and moves along the axial direction of the upper bucket 11.

[0028] Multiple movable plates 3 are hinged to each other in the lower bucket 12. The movable end of each movable plate 3 is hinged to the inside of the entrance of the narrow waist 13. A traction rod 31 is provided at the hinge of each movable plate 3. The top of the traction rod 31 passes through the entrance of the narrow waist 13 and is connected to the bottom of the suspended ball 2.

[0029] During the drainage process, the slow flow velocity at the narrow waist 13 causes the liquid level in the upper bucket 11 to rise. The suspended ball 2 is lifted by buoyancy, which pulls the traction rod 31 to drive the movable end of the movable plate 3 to radially expand the narrow waist 13 for unblocking. After unblocking, the instantaneous force difference causes the suspended ball 2 to swing elastically, forming a continuous peristaltic change in the inner diameter of the elastic drainage tube 1 to promote the discharge of residues.

[0030] The traction rod 31 has a segmented structure, consisting of a rigid upper section connected to the suspended ball 2 and an elastic lower section connected to the movable plate 3. The elastic lower section deforms when the suspended ball 2 swings, amplifying the radial movement amplitude of the movable plate 3. The rigid section ensures the initial unblocking force, while the elastic section converts the swinging energy into a large stroke movement, enhancing the peristaltic effect and solving the problem of high-viscosity bile residue.

[0031] The upper part 11 is inserted into the body, and the narrow waist 13 forms a locking effect inside the body, reducing the risk of accidental dislodgement. Post-hepatobiliary surgery fluid accumulation can be located in different areas, such as below the liver or below the diaphragm. The enlarged inlet end of the upper part 11 can cover a larger area, preventing localized fluid accumulation. Especially when the body position changes, the elastic drainage tube 1 is less likely to completely leave the fluid accumulation area, maintaining continuous drainage. During drainage, due to the high viscosity of the fluid (such as viscous bile or blood clots), the flow rate will slow down, causing the fluid level in the upper part 11 to gradually rise. The suspended ball 2, under buoyancy, moves upward, pulling the traction rod 31 and driving the movable end of the movable plate 3 to expand radially. The inner diameter of the narrow waist section 13 is cleared. At the moment of clearing, the narrow waist section 13 suddenly expands, causing the liquid in the high-pressure zone of the upper bucket section 11 to flow at high speed to the low-pressure zone of the lower bucket section 12, forming a sudden drop in local pressure. The energy generated by the clearing action itself is used as a secondary driving source, causing the suspended ball 2 to swing elastically through the elastic rope 21. The pressure difference causes the suspended ball 2 to be subjected to an unbalanced force. The elastic rope 21 deforms and stores energy. The suspended ball 2 swings with damping, converting the instantaneous fluid energy into continuous mechanical energy. This causes the inner diameter of the elastic drainage tube 1 to periodically peristalse and swing. This "peristaltic effect" imitates the peristaltic action of a living organism, which helps to accelerate the discharge of fluid and avoid the accumulation of liquid.

[0032] The maximum radial expansion diameter of the narrow waist section 13 is smaller than the flared end diameters of the upper bucket section 11 and the lower bucket section 12. The diameter of the elastic drainage tube 1 gradually increases along the direction of the narrow waist section 13, and the increase in diameter is proportional to the radial expansion diameter. The gradual expansion of the diameter of the narrow waist section 13 enhances the peristaltic effect, thereby effectively propelling the fluid out of the pipe. Because the change in diameter is relatively smooth, the impact force on the fluid flow is relatively small, which can better coordinate with the contraction and expansion of the elastic drainage tube 1, making the peristaltic effect occur more evenly and continuously, avoiding unstable flow phenomena caused by excessive local expansion or contraction within the elastic drainage tube 1, and further enhancing the dynamic output of the fluid.

[0033] The inlet of the narrow waist section 13 has a tapered flared structure, and its tapered surface matches the contour of the movable end of the movable plate 3. The tapered flared opening reduces the probability of blockage, while ensuring that the movable plate 3 fits seamlessly with the inner wall of the narrow waist section 13 when it expands.

[0034] The suspended ball 2 is provided with elastic ropes 21 on both sides, which are connected to the inner wall of the upper bucket 11. The natural length of the elastic ropes 21 ensures that the bottom of the suspended ball 2 is 0.5mm-1mm away from the inlet of the narrow waist 13 when it is suspended. The elastic ropes 21 convert the pressure difference into continuous mechanical energy, and the density of the suspended ball 2 and the suspension height limit ensure the sensitivity of blockage detection.

[0035] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A drainage tube assembly for clinical hepatobiliary surgery, characterized in that, include: The elastic drainage tube (1) is composed of an upper part (11) and a lower part (12) that are axially connected, and a narrow waist (13) is formed between the two to fix the tissue in the body. The suspended ball (2) is flexibly suspended in the upper bucket (11), and its central axis coincides with the central axis of the narrow waist (13), and moves along the axial direction of the upper bucket (11); Multiple movable plates (3) are hinged to each other in the lower bucket (12). The movable end of each movable plate (3) is hinged to the inside of the entrance of the narrow waist (13). A traction rod (31) is provided at the hinge of each movable plate (3). The top of the traction rod (31) passes through the entrance of the narrow waist (13) and is connected to the bottom of the suspended ball (2). During the drainage process, the slow flow rate at the narrow waist (13) causes the liquid level in the upper bucket (11) to rise. The suspended ball (2) is lifted by buoyancy, which pulls the traction rod (31) to drive the movable end of the movable plate (3) to radially expand the narrow waist (13) for unblocking. After unblocking, the instantaneous force difference is used to make the suspended ball (2) swing elastically, forming a continuous peristaltic change in the inner diameter of the elastic drainage tube (1) to promote the discharge of residues.

2. The drainage tube assembly for clinical hepatobiliary surgery according to claim 1, characterized in that: The maximum radial expansion diameter of the narrow waist (13) is smaller than the flared end diameter of the upper bucket (11) and the lower bucket (12).

3. A drainage tube assembly for clinical hepatobiliary surgery according to claim 2, characterized in that: The inner diameter of the elastic drainage tube (1) gradually increases along the narrow waist (13) direction, and the increase in diameter is proportional to the radial expansion diameter.

4. A drainage tube assembly for clinical hepatobiliary surgery according to claim 3, characterized in that: The entrance of the narrow waist (13) has a conical flared structure, and its conical surface matches the contour of the movable end of the movable plate (3).

5. A drainage tube assembly for clinical hepatobiliary surgery according to claim 1, characterized in that: The suspended ball (2) is provided with elastic ropes (21) on both sides that are connected to the inner wall of the upper bucket (11). The natural length of the elastic ropes (21) makes the bottom of the suspended ball (2) 0.5mm-1mm away from the entrance of the narrow waist (13) when it is suspended.

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