Abdominal cavity drainage fixing device for digestive tract tumor

By setting pressure plates and conical plates on the fixed cylinder for multi-directional compression and fixing, the problem of insufficient stability of traditional drainage tube fixing devices is solved, and stable fixing of drainage tubes of different diameters is achieved, which improves the versatility and practicality of the device and promotes patient recovery.

CN121371348APending Publication Date: 2026-01-23THE FOURTH HOSPITAL OF HEBEI MEDICAL UNIVERSITY (HEBEI CANCER HOSPITAL)
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Patent Information

Application Number
CN202511721497.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-21
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

In current gastrointestinal tumor surgeries, traditional drainage tube fixation devices are not stable enough, especially when the diameter is mismatched, which can easily lead to blockage or failure to fix, affecting postoperative recovery.

Method used

An abdominal drainage and fixation device for gastrointestinal tumors was designed. By arraying pressure plates on the fixation tube and using a conical plate with sliding connection, multi-directional compression fixation is achieved, which can adapt to drainage tubes of different diameters and improve stability and versatility.

Benefits of technology

It effectively improves the stability of the drainage tube, avoids displacement and blockage, reduces the frequency of replacement, and reduces patient pain and the workload of medical staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an abdominal cavity drainage fixing device for digestive tract tumors. The device comprises a fixing plate, a fixed sliding cylinder and a movable sliding cylinder. The front end of the fixed plate is slidably connected with a fixed sliding cylinder, and the rear end is slidably connected with a movable sliding cylinder; fixing belts are symmetrically arranged on the two sides of the fixing plate, a horizontal sliding groove is formed in the front end and slidably connected with the fixed sliding cylinder, and an arc-shaped sliding groove is formed in the rear end and slidably connected with the movable sliding cylinder. A vertical groove is formed in the front end of the fixed sliding cylinder; a hole is formed in the middle of the vertical groove and communicates with the fixed sliding barrel; the fixed sliding cylinder and the movable sliding cylinder are hollow, and extrusion blocks are arranged in the front ends of the fixed sliding cylinder and the movable sliding cylinder; an inner cylinder is arranged at the inner ring of the extrusion block; a threaded connection fixing cylinder is arranged outside the inner cylinder; a plurality of extrusion grooves are formed in the circumference of the rear part of the fixed cylinder in an array manner and are slidably connected with the pressing plate; by screwing the fixing cylinder into the fixing sliding cylinder for different distances, the pressing plate extrudes and fixes the drainage tube inwards, so that the drainage tube is restrained from multiple directions.
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Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary device technology, and specifically relates to an abdominal drainage and fixation device for digestive tract tumors. Background Technology

[0002] Gastrointestinal tumors are among the most common diseases, encompassing tumors of the esophagus, stomach, intestines, and other digestive organs. During surgical removal of tumors, especially when performing extensive resections and reconstructions of the digestive tract, such as radical gastrectomy or radical resection of colorectal cancer, the complex surgical procedures and significant trauma can easily lead to postoperative complications such as ascites, bleeding, and effusion. In such cases, drainage tubes need to be placed in the abdominal cavity to drain these fluids, prevent the spread of infection, promote the resolution of inflammation, and ensure the healing of the surgical site and the patient's recovery.

[0003] In existing technologies, traditional fixation devices can only clamp and fix the drainage tube from the top and bottom. Since the drainage tube is generally a soft tube, the insufficient force-bearing surface leads to insufficient fixation stability. Furthermore, excessive compression can crush the two sides of the drainage tube, causing blockage. In addition, the traditional top and bottom compression fixation method is not suitable for drainage tubes with a small diameter. It can result in the drainage tube not being fixed after the top and bottom surfaces come into contact, making it impossible to fix the drainage tube.

[0004] Therefore, in view of the above-mentioned problems in the prior art, this solution proposes an abdominal drainage and fixation device for digestive tract tumors. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention designs an abdominal drainage and fixation device for digestive tract tumors. This device involves arraying several pressure plates on a fixation cylinder, with a conical plate at the upper end of each pressure plate slidably connected to the inner wall of the fixation cylinder. The fixation cylinder is then screwed into the fixation cylinder at different distances, causing the pressure plates to compress and fix the drainage tube inwards. This allows for the fixation of drainage tubes of different diameters while simultaneously providing multi-directional fixation of the drainage tube through the arrayed pressure plates, thus improving the stability of the fixation.

[0006] To achieve the above-mentioned technical effects, the present invention is implemented through the following technical solution: an abdominal drainage and fixation device for digestive tract tumors, comprising: a fixation plate, a fixed slide, and a movable slide;

[0007] The front end of the fixed plate is slidably connected to a fixed slide cylinder, and the rear end is slidably connected to a movable slide cylinder.

[0008] The fixed plate is symmetrically provided with fixing straps on both sides, and a horizontal sliding groove is provided at the front end to slide and connect the fixed sliding cylinder, and an arc-shaped sliding groove is provided at the rear end to slide and connect the movable sliding cylinder; a vertical groove is provided at the front end of the fixed sliding cylinder; a hole is opened in the middle of the vertical groove to communicate with the interior of the fixed sliding cylinder;

[0009] The fixed and movable slide cylinders are hollow inside, with an extrusion block inside the front end; an inner cylinder is provided at the inner ring of the extrusion block; a threaded fixed cylinder is provided outside the inner cylinder; a plurality of extrusion grooves are arranged in a circular array at the rear of the fixed cylinder to slide and connect to the pressure plate, and a handle is provided at the end.

[0010] Furthermore, the upper end of the pressure plate is provided with a conical plate, and the lower end is provided with a sliding plate; both the sliding plate and the conical plate are provided with arc-shaped plates.

[0011] Furthermore, the thickness of the conical plate gradually increases from front to back, and the outer sliding connection is between the movable slide cylinder and the inner wall of the fixed slide cylinder;

[0012] Furthermore, a rubber pad is provided on the lower surface of the slide plate to slidably connect to the drainage tube;

[0013] Furthermore, a screw is provided in the middle of the horizontal slide groove; one end of the screw is threaded and connected to the fixing plate through and rotates, and a knob is provided on the outside;

[0014] Furthermore, a slider is provided at the lower end of the movable slide cylinder; a hole is opened in the middle of the slider to rotatably connect to the movable slide cylinder, and an arc-shaped slide groove is slidably connected to the outside;

[0015] Furthermore, the length of the inner cylinder is half that of the fixed slide or the movable slide;

[0016] Furthermore, the length of the slide plate is half that of the fixed or movable slide tube to prevent the inner tube from obstructing the slide plate.

[0017] The beneficial effects of this invention are:

[0018] This invention uses an array of pressure plates arranged on a fixed cylinder. The conical plate at the upper end of the pressure plate slides against the inner wall of the fixed cylinder. By screwing the fixed cylinder into the fixed cylinder at different distances, the pressure plates squeeze and fix the drainage tube inward. This achieves constraint on the drainage tube from multiple directions. Compared with the traditional fixation method that only clamps from the top and bottom, it can effectively improve the stability of fixation, ensure that the drainage tube is not easy to shift or loosen during the drainage process, better maintain the correct position of the drainage tube, ensure the drainage effect, and benefit the patient's postoperative recovery.

[0019] Meanwhile, with the conical compression plate, when the fixing cylinder is screwed into the fixing slide, the conical compression plate can work with the pressure plate to compress and fix the drainage tube according to the different screwing distance of the fixing cylinder. This can meet the fixing needs of drainage tubes of different diameters, avoiding the problems of traditional fixing devices being unable to fix the drainage tube effectively due to its small diameter, or the drainage tube being clamped and blocked due to excessive compression. This improves the versatility and practicality of the device, reduces the frequency of replacing the fixing device, and reduces the operational burden on medical staff and the pain of patients. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the overall structure of an abdominal drainage and fixation device for digestive tract tumors.

[0022] Figure 2 This is a schematic diagram of the fixation plate structure of an abdominal drainage and fixation device for digestive tract tumors.

[0023] Figure 3 This is a side sectional view of the fixation plate of an abdominal drainage and fixation device for gastrointestinal tumors.

[0024] Figure 4 This is a schematic diagram of the fixation cylinder structure of an abdominal drainage and fixation device for digestive tract tumors.

[0025] Figure 5 This is a schematic diagram of a conical plate structure for an abdominal drainage and fixation device for digestive tract tumors.

[0026] Figure 6 This is a side view of the sectional structure of an abdominal drainage and fixation device for digestive tract tumors.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Fixing belt, 2-Fixing plate, 3-Horizontal slide groove, 4-Arc slide groove, 5-Screw, 6-Knob, 7-Modible slide cylinder, 8-Fixing slide cylinder, 9-Vertical groove, 10-Inner cylinder, 11-Extrusion block, 12-Slider, 13-Fixing cylinder, 14-Handle, 15-Extrusion groove, 16-Conical plate, 17-Slide plate, 18-Pressure plate, 19-Drainage tube. Detailed Implementation

[0029] This invention discloses an abdominal drainage and fixation device for digestive tract tumors, comprising a fixation plate 2, a fixed slide 8, and a movable slide 7;

[0030] The front end of the fixed plate 2 is slidably connected to the fixed slide cylinder 8, and the rear end is slidably connected to the movable slide cylinder 7.

[0031] The fixing plate 2 is symmetrically provided with fixing straps 1 on both sides, and a horizontal sliding groove 3 is provided at the front end to slide and connect to the fixed sliding cylinder 8, and an arc-shaped sliding groove 4 is provided at the rear end to slide and connect to the movable sliding cylinder 7; a vertical groove 9 is provided at the front end of the fixed sliding cylinder 8; a hole is opened in the middle of the vertical groove 9 to communicate with the interior of the fixed sliding cylinder 8.

[0032] The fixed slide 8 and the movable slide 7 are hollow inside, with an extrusion block 11 inside the front end; an inner cylinder 10 is provided at the inner ring of the extrusion block 11; a threaded fixed cylinder 13 is provided on the outside of the inner cylinder 10; a plurality of extrusion grooves 15 are arranged in a circular array at the rear of the fixed cylinder 13 to slide and connect to the pressure plate 18, and a handle 14 is provided at the end; by screwing the fixed cylinder 13 into the fixed slide 8 at different distances, the pressure plate 18 extrudes and fixes the drainage tube 19 inward, thereby constraining the drainage tube 19 from multiple directions.

[0033] 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 described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Example 1

[0035] like Figure 1-6 As shown, the front end of the fixed plate 2 is slidably connected to the fixed slide cylinder 8, and the rear end is slidably connected to the movable slide cylinder 7;

[0036] The fixing plate 2 is symmetrically provided with fixing straps 1 on both sides, and a horizontal sliding groove 3 is provided at the front end to slide and connect to the fixed sliding cylinder 8, and an arc-shaped sliding groove 4 is provided at the rear end to slide and connect to the movable sliding cylinder 7; a vertical groove 9 is provided at the front end of the fixed sliding cylinder 8; a hole is opened in the middle of the vertical groove 9 to communicate with the interior of the fixed sliding cylinder 8.

[0037] In this embodiment, the inner surface of the fixing plate 2 is set as a curved surface to fit the curved surface of the patient's abdomen; the fixing straps 1 on both sides are made of elastic cloth and Velcro is set at both ends. The fixing straps 1 can wrap around the patient's abdomen to form a closed loop. By adjusting the tightness, it can adapt to different body shapes and avoid skin allergy problems caused by traditional tape.

[0038] The vertical groove 9 is opened on the front end face of the fixed slide cylinder 8, and its depth is consistent with the wall thickness of the slide cylinder. The through hole in the middle connects to the inner cavity of the slide cylinder and is used to insert the drainage tube 19 and position it at the initial position, so as to prevent the squeezing block 11 from directly contacting the skin at the puncture point.

[0039] The fixed slide 8 and the movable slide 7 are hollow inside, and an extrusion block 11 is set inside the front end. The extrusion block 11 is a ring structure with an outer diameter that is the same as the inner diameter of the slide. It is fixed at the junction of the fixed slide 8 and the movable slide 7 to form a rigid connection point between the front and rear slides. An inner cylinder 10 is set at the inner ring of the extrusion block 11. A fixed cylinder 13 is threadedly connected to the outside of the inner cylinder 10. Several extrusion grooves 15 are arranged in a circular array at the rear of the fixed cylinder 13 to slide and connect to the pressure plate 18. A handle 14 is set at the end.

[0040] Furthermore, the pressure plate 18 is provided with a tapered plate 16 at its upper end and a sliding plate 17 at its lower end; both the sliding plate 17 and the tapered plate 16 are provided with arc-shaped plates.

[0041] Furthermore, the thickness of the conical plate 16 gradually increases from front to back, and the inner wall of the movable slide cylinder 7 and the fixed slide cylinder 8 are slidably connected externally.

[0042] Furthermore, the lower surface of the slide plate 17 is provided with a rubber pad for sliding connection to the drainage tube 19; the surface is provided with anti-slip ridges, which generate elastic deformation when in contact with the drainage tube 19, providing friction to prevent slippage and avoiding hard compression that could lead to tube blockage.

[0043] Furthermore, a screw 5 is provided in the middle of the horizontal chute 3; one end of the screw 5 is threaded and connected to the fixing plate 2, and a knob 6 is provided on the outside; both ends of the screw 5 are fixed to the fixing plate 2 by bearings, and the threaded section in the middle cooperates with the nut seat at the bottom of the fixed slide cylinder 8. When the external knob 6 is rotated, the screw 5 drives the fixed slide cylinder 8 to slide linearly in the horizontal direction, which can adapt to the left and right offset of the puncture point or the adjustment of the direction of the drainage tube 19.

[0044] Furthermore, a slider 12 is provided at the lower end of the movable slide cylinder 7; the slider 12 has a hole in the middle to rotatably connect to the movable slide cylinder 7, and is slidably connected to the arc-shaped groove 4 on the outside; after the slider 12 is embedded in the arc-shaped groove, the movable slide cylinder 7 can rotate around the center of the puncture point in the groove, solving the problem that traditional fixation devices cannot adapt to the multi-angle implantation of the drainage tube 19.

[0045] Furthermore, the length of the inner cylinder 10 is half that of the fixed slide 8 or the movable slide 7;

[0046] Furthermore, the length of the slide plate 17 is half that of the fixed slide tube 8 or the movable slide tube 7 to prevent the inner tube 10 from obstructing the slide plate 17. In actual use, the front end of the fixed tube 13 contacts the outer end of the inner tube 10. After moving inward, the slide plate 17 reaches its minimum inner diameter when the fixed tube 13 touches the inner surface of the inner tube 10.

[0047] In this embodiment, when the device is in use, the elastic fixing straps 1 on both sides of the fixing plate 2 are used to wrap around the patient's abdomen. The tightness is adjusted by Velcro, and the main body of the device is attached to the skin at the puncture point. The through hole in the middle of the fixing plate 2 is aligned with the exit position of the drainage tube 19 to ensure initial positioning. The knob 6 in the middle of the horizontal slide groove 3 is rotated, and the screw 5 drives the fixing slide cylinder 8 to slide in the horizontal direction to adjust its lateral distance from the puncture point and adapt to the incision position offset. The movable slide cylinder 7 is manually moved, and its lower slider 12 rotates along the arc-shaped slide groove 4 to adjust the angle of the movable slide cylinder 7 around the puncture point to match the implantation direction of the drainage tube 19.

[0048] The drainage tube 19 is passed through the vertical groove 9 at the front end of the fixed slide tube 8 and the central through hole, and placed in the hollow cavity between the fixed slide tube 8 and the movable slide tube 7. The handle 14 at the end of the fixed tube 13 is rotated, and the fixed tube 13 moves forward along the threaded outer wall of the inner tube 10. The pressure plates 18 arranged in a circular array at its rear move with the fixed tube 13. The tapered plate 16 at the upper end of the pressure plate 18 fits against the guide slope of the inner wall of the slide tube. As the fixed tube 13 moves forward, the tapered plate 16 retracts along the slope, causing the pressure plate 18 to move radially towards the center synchronously. The arc-shaped sliding plate 17 at the lower end of the pressure plate 18 gradually encircles the outer wall of the drainage tube 19, forming a 360° uniform compression. Because the thickness of the tapered plate 16 increases from front to back, drainage tubes 19 of different diameters will cause the pressure plate 18 to retract by different distances, automatically adapting to various tube diameters without the need for manual adjustment.

[0049] In summary, this invention, by arraying several pressure plates 18 on the fixed cylinder 13, utilizes the conical plate 16 at the upper end of the pressure plate 18 to slide and connect with the inner wall of the fixed sliding cylinder 8, and by screwing the fixed cylinder 13 into the fixed sliding cylinder 8 at different distances, the pressure plates 18 compress and fix the drainage tube 19 inward, thereby achieving constraint of the drainage tube 19 from multiple directions. Compared with the traditional fixation method that only clamps from the top and bottom, it can effectively improve the stability of fixation, ensure that the drainage tube 19 is not prone to displacement or loosening during drainage, better maintain the correct position of the drainage tube 19, ensure the drainage effect, and benefit the patient's postoperative recovery.

[0050] Meanwhile, with the conical compression plate 18, when the fixing cylinder 13 is screwed into the fixing slide cylinder 8, the conical compression plate 18 can work with the pressure plate 18 to compress and fix the drainage tube 19 according to the different screwing distances of the fixing cylinder 13. This can meet the fixing requirements of drainage tubes 19 of different diameters, avoiding the problem that traditional fixing devices cannot effectively fix the drainage tube 19 due to its small diameter, or that the drainage tube 19 is crushed and blocked due to excessive compression. This improves the versatility and practicality of the device, reduces the frequency of replacing the fixing device, and reduces the operational burden on medical staff and the pain of patients.

[0051] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation described.

Claims

1. A device for fixing and draining abdominal cavity for digestive tract tumors, characterized in that, include: Fixed plate, fixed slide, movable slide; The front end of the fixed plate is slidably connected to a fixed slide cylinder, and the rear end is slidably connected to a movable slide cylinder. The fixed plate is symmetrically provided with fixing straps on both sides, and a horizontal sliding groove is provided at the front end to slide and connect the fixed sliding cylinder, and an arc-shaped sliding groove is provided at the rear end to slide and connect the movable sliding cylinder; a vertical groove is provided at the front end of the fixed sliding cylinder; a hole is opened in the middle of the vertical groove to communicate with the interior of the fixed sliding cylinder; The fixed and movable slides are hollow inside, with an extrusion block inside the front end; an inner cylinder is set at the inner ring of the extrusion block; a threaded fixed cylinder is set outside the inner cylinder; several extrusion grooves are arranged in a circular array at the rear of the fixed cylinder to slide and connect to the pressure plate, and a handle is set at the end.

2. The abdominal drainage and fixation device for digestive tract tumors according to claim 1, characterized in that, The pressure plate has a tapered plate at the upper end and a sliding plate at the lower end; both the sliding plate and the tapered plate are arc-shaped plates.

3. The abdominal drainage and fixation device for digestive tract tumors according to claim 2, characterized in that, The thickness of the conical plate gradually increases from front to back, and the outer sliding connection is between the movable slide cylinder and the inner wall of the fixed slide cylinder.

4. The abdominal drainage and fixation device for digestive tract tumors according to claim 2, characterized in that, The lower surface of the skateboard is provided with a rubber pad for sliding connection of the drainage tube.

5. The abdominal drainage and fixation device for digestive tract tumors according to claim 1, characterized in that, A screw is provided in the middle of the horizontal slide; one end of the screw is threaded and connected to the fixing plate, and a knob is provided on the outside.

6. The abdominal drainage and fixation device for digestive tract tumors according to claim 1, characterized in that, The lower end of the movable slide cylinder is provided with a slider; the middle of the slider is provided with a hole for rotatable connection to the movable slide cylinder, and the outside is slidably connected to an arc-shaped slide groove.

7. The abdominal drainage and fixation device for digestive tract tumors according to claim 1, characterized in that, The length of the inner cylinder is half that of the fixed slide or the movable slide.

8. The abdominal drainage and fixation device for digestive tract tumors according to claim 4, characterized in that, The length of the slide plate is half that of the fixed or movable slide tube to prevent the inner tube from obstructing the slide plate.