A device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube

Abstract

This invention discloses a device for reinforcing and fixing the puncture point of a drainage tube for patients with large amounts of ascites. The device includes a circular film with a medical pressure-sensitive adhesive layer on its back, a pressure pad at its center, and a soft adhesive layer with a four-pointed star structure inside. A central piece is located on the back of the pressure pad, with a sponge layer between the central piece and the pressure pad. An inflatable sealing balloon is located on the back of the central piece corresponding to the drainage tube hole. Multiple processing chambers are evenly distributed on the back of the circular film corresponding to the pressure pad, and a ring plate is embedded around the central piece. A ring frame is also provided on the back of the circular film, with elastic ropes with buckles connected to both sides. This invention employs a triple fixation method, providing secure fixation, good leakage prevention, temporary flow interruption, skin protection, high structural strength, and ease of use. It is suitable for fixing drainage tubes in various patients with large amounts of ascites.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube. Background Technology

[0002] Ascites is a common complication in the late stages of many diseases, especially in patients with cirrhosis and malignant tumors. Large amounts of ascites can lead to severe symptoms such as abdominal distension, difficulty breathing, and kidney damage, seriously affecting the patient's quality of life and survival. Paracentesis is one of the most commonly used methods for treating large amounts of ascites. It involves inserting a drainage tube through a puncture in the abdomen to continuously or intermittently drain the ascites.

[0003] However, in clinical practice, existing methods of fixing ascites drainage tubes have many problems: Insecure fixation: Traditional medical tape fixation methods are prone to tape detachment due to patient sweating, activity, and skin oil secretion, causing the drainage tube to shift or even fall out, requiring re-puncture, increasing patient pain and infection risk.

[0004] Leakage at the puncture site: Patients with large amounts of ascites have high intra-abdominal pressure, and ascites is prone to leaking through the gap between the drainage tube and the skin. This not only contaminates clothing and bedding, but also causes maceration and erosion of the skin around the puncture site, increasing the chance of infection.

[0005] Inability to temporarily stop drainage: When it is necessary to change the drainage bag, or when the patient goes out for examination or activity, the traditional method requires clamping the drainage tube with hemostats, which is inconvenient to operate and easy to damage the drainage tube. At the same time, the weight of the hemostats will pull on the drainage tube, causing discomfort to the patient.

[0006] Skin damage: Prolonged use of tape for fixation can cause skin allergies, redness, itching, and even blisters and ulceration, especially in elderly patients and those with sensitive skin.

[0007] Insufficient structural strength: Existing fixation devices are prone to deformation when patients turn over or move around, resulting in a decrease in fixation effectiveness.

[0008] Therefore, there is an urgent need to develop a device for reinforcing and fixing the puncture point of a large volume of ascites drainage tube that can firmly fix the drainage tube, effectively prevent leakage at the puncture point, achieve temporary flow interruption, protect the skin, and has high structural strength. Summary of the Invention

[0009] In view of this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide a device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube, which solves the problems of poor fixation of drainage tube, leakage at the puncture point, inability to temporarily cut off the flow, easy to cause skin damage and insufficient structural strength in the prior art.

[0010] Based on the above objectives, one or more embodiments of this specification provide a device for reinforcing and fixing puncture points of large-volume ascites drainage tubes, including a circular film, the back of which is coated with a medical pressure-sensitive adhesive layer, a pressure pad is provided at the center of the circular film, and a soft adhesive layer is also provided inside the circular film. The soft adhesive layer has a four-pointed star structure, and a first circular hole is provided at the center of the four-pointed star structure. The four corners of the soft adhesive layer are also coated with a medical pressure-sensitive adhesive layer on the side of the circular film corresponding to the adhesive layer of the circular film. A second circular hole is opened in the middle of the circular film. A central piece is provided on the back of the compression pad. A drainage tube hole is opened coaxially between the central piece and the center of the compression pad. A sponge layer is provided between the central piece and the compression pad. The compression pad is made of medical non-woven fabric. A sealing airbag is provided on the back of the central piece corresponding to the drainage tube hole. An inner cavity is opened inside the sealing airbag, and an air inlet is opened on one side of the inner cavity. A one-way control valve is provided at the air inlet, and an openable and closable sealing cover is provided outside the air inlet. Multiple processing cavities are evenly distributed on the back of the circular film corresponding to the pressing pad, and an annular plate is inlaid on the back of the circular film surrounding the central film.

[0011] Furthermore, the soft adhesive layer is made of medical-grade silicone material, and the four corners of the four-pointed star structure are rounded.

[0012] Furthermore, the sealing airbag is made of medical-grade polyurethane material, and its inner diameter after inflation is 0.5-1 mm smaller than the outer diameter of the drainage tube, with an inflation pressure of 0.02-0.05 MPa.

[0013] Furthermore, the number of processing cavities is 6-12, and they are evenly distributed in a ring.

[0014] Furthermore, the annular plate is made of medical-grade polypropylene material.

[0015] Furthermore, a ring frame is provided on the back of the circular film, and elastic ropes are fixedly connected to both sides of the ring frame. A first docking frame is fixedly attached to the end of one of the two elastic ropes, and a buckle is provided at one end of the first docking frame. A second docking frame is fixedly attached to the end of the other elastic rope, and a buckle matching the buckle is provided at one end of the second docking frame. The elastic ropes are made of medical latex material and can be stretched to 2-3 times their natural length.

[0016] Furthermore, the diameter of the circular film is 8-12cm, and the back side has a frustum-shaped structure.

[0017] Furthermore, the sponge layer is made of medical-grade polyurethane sponge material, with a water absorption capacity of 10-15 times its own weight.

[0018] Furthermore, a groove is provided on the back of the circular film corresponding to the pressing pad.

[0019] Furthermore, the medical pressure-sensitive adhesive layer is an anti-allergic pressure-sensitive adhesive layer, containing added vitamin E and aloe vera extract.

[0020] Compared with the prior art, the present invention has the following advantages: Secure Fixation: Utilizing a triple fixation method of circular film + four-pointed star soft adhesive layer + elastic cord, this effectively resists the effects of patient activity and sweating, preventing drainage tube displacement and dislodgement. The four-pointed star structure of the soft adhesive layer allows for multi-point contact with the skin, increasing adhesion while dispersing pressure and reducing local skin compression.

[0021] Excellent leak-proof effect: Through the synergistic action of the compression pad, sponge layer, and sealing airbag, the gap between the drainage tube and the skin can be effectively sealed. The sponge layer can absorb a small amount of leaked ascites, and the sealing airbag, when inflated, can tightly wrap the drainage tube to prevent large amounts of ascites from leaking out.

[0022] It can achieve temporary flow interruption: by inflating the sealed airbag, the drainage tube can be squeezed to close, achieving temporary flow interruption. There is no need to use hemostats, the operation is simple, it will not damage the drainage tube, and at the same time avoids the discomfort caused by hemostats pulling on the drainage tube.

[0023] Skin protection: The treatment chamber design maintains ventilation around the puncture site while allowing for the injection of disinfectants such as iodine solution for continuous disinfection and infection prevention. The medical pressure-sensitive adhesive layer uses a hypoallergenic formula to reduce the occurrence of skin allergic reactions.

[0024] High structural strength: The ring-shaped reinforcing plate enhances the overall structural strength of the device, prevents deformation during use, and ensures the stability of the fixing effect. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in one or more embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall side and top view of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is the present invention. Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the structure of the soft adhesive layer of the present invention; Figure 5 This is a schematic diagram of the overall side-view structure of the present invention.

[0027] In the diagram: 1. Circular film, 11. Soft rubber layer, 12. Compression pad, 13. Processing chamber, 14. Annular plate, 15. Groove, 2. Central piece, 21. Sponge layer, 22. Sealing airbag, 23. Sealing cover, 24. Inner cavity, 3. Ring frame, 31. Elastic rope, 32. First docking frame, 33. Buckle, 34. Second docking frame, 35. Bayonet. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Example 1: like Figure 1-4 As shown in the figure, this embodiment provides a device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube, including a circular film 1. The back of the circular film 1 is coated with a medical pressure-sensitive adhesive layer, and the back of the circular film 1 has a frustum-shaped structure. A pressure pad 12 is provided at the center of the circular film 1, and the pressure pad 12 is made of medical non-woven fabric.

[0031] The circular film 1 also contains a soft adhesive layer 11, which is made of medical-grade silicone material and has a four-pointed star structure. A first circular hole is provided at the center of the four-pointed star structure, and the four corners of the four-pointed star structure are rounded. The four corners of the soft adhesive layer 11 are also coated with a medical pressure-sensitive adhesive layer on the side of the circular film 1 where the adhesive layer is applied.

[0032] A second circular hole is provided in the middle of the circular film 1, which is coaxial with the first circular hole. A central piece 2 is provided on the back of the compression pad 12, which is made of medical polyethylene material. A drainage tube hole is provided coaxially at the center of the central piece 2 and the compression pad 12, which is suitable for use with a conventional 16Fr ascites drainage tube.

[0033] A sponge layer 21 is provided between the central piece 2 and the compression pad 12. The sponge layer 21 is made of medical-grade polyurethane sponge material and has good water absorption and seepage prevention properties. A sealing airbag 22 is provided on the back of the central piece 2 around the drainage tube hole. The sealing airbag 22 is made of medical-grade polyurethane material. After inflation, it can tightly wrap the outer wall of the drainage tube to achieve sealing and seepage prevention and temporary flow interruption functions.

[0034] The sealing airbag 22 has an inner cavity 24, and an air inlet is provided on one side of the inner cavity 24. A one-way control valve is provided at the air inlet, and an openable and closable sealing cover 23 is provided outside the air inlet. Eight processing chambers 13 are evenly distributed in a ring on the back of the circular film 1 corresponding to the pressing pad 12.

[0035] An annular plate 14, made of medical-grade polypropylene, is embedded on the back of the circular film 1 surrounding the central piece 2. This annular plate reinforces the overall structure of the device and prevents deformation. A ring frame 3, made of medical-grade polyethylene, is also provided on the back of the circular film 1. Elastic ropes 31, made of medical-grade latex, are fixedly connected to both sides of the ring frame 3, allowing for flexible stretching to adapt to different usage scenarios.

[0036] One end of one of the two elastic ropes 31 is fixedly attached to a first docking frame 32, and one end of the first docking frame 32 is provided with a buckle 33. The other end of the elastic rope 31 is fixedly attached to a second docking frame 34, and one end of the second docking frame 34 is provided with a slot 35 that matches the buckle 33.

[0037] Detailed installation and usage process 1. Preoperative preparation: Prepare one set of fixation device for this embodiment, one 5ml syringe, povidone-iodine disinfectant, sterile cotton swabs, and sterile gauze. Check that the device packaging is intact and within the expiration date, and check that the sealing airbag 22 is not damaged or leaking, and that the one-way control valve opens and closes normally.

[0038] 2. Skin preparation: Using iodine solution, disinfect the skin three times in a spiral motion from the inside out, with the puncture site as the center. The diameter of the disinfected area should not be less than 15cm. Allow the disinfectant to air dry naturally to ensure that the puncture area is clean and sterile.

[0039] 3. Drainage tube insertion: After abdominal puncture, insert the drainage tube into place, pass it through the drainage tube hole from the non-adhesive side of the device, so that the adhesive side of the device faces the patient's puncture skin, and position the device correctly.

[0040] 4. Film application: Peel off the release paper on the back of the circular film 1, accurately align the center of the circular film 1 with the puncture point, and slowly press and smooth it from the center outwards to make the film completely adhere to the skin without bubbles or wrinkles, ensuring a good basic adhesion and fixation effect.

[0041] 5. Fixing the soft adhesive layer: Press the four rounded corners of the soft adhesive layer 11 in sequence to make the adhesive layer at the four corners of the soft adhesive layer 11 adhere tightly to the skin. The multi-point adhesion structure enhances the fixation stability and disperses local pressure.

[0042] 6. Inflation and Sealing of the Airbag: Open the sealing cap 23, insert the syringe needle into the air inlet, and slowly and evenly inject air to inflate the sealing airbag 22 and tightly wrap around the outer wall of the drainage tube. After removing the syringe, the one-way control valve automatically closes to lock the air, and the sealing cap 23 is closed to complete the seal and prevent air leakage.

[0043] 7. Elastic rope reinforcement: Wrap two elastic ropes 31 around the patient's waist on both sides respectively, and insert the buckle 33 of the first docking frame 32 into the slot 35 of the second docking frame 34. Adjust the rope tension length according to the appropriate tightness, so that a finger can be inserted into the skin, taking into account both fixation strength and wearing comfort.

[0044] 8. Puncture point maintenance and disinfection: Use a syringe to inject a small amount of povidone-iodine disinfectant into each treatment chamber 13. After the disinfectant soaks and presses the pad 12, it can continue to act on the puncture point to achieve long-term disinfection and antibacterial effect. At the same time, the treatment chamber 13 can keep the skin breathable and avoid dampness damage.

[0045] 9. Temporary interruption and resumption of drainage: When it is necessary to interrupt drainage, air can be added to the sealing airbag 22 to increase the pressure of the airbag on the drainage tube, so that the drainage tube lumen is completely closed, achieving non-invasive interruption of drainage. When it is necessary to resume drainage, the one-way control valve is opened to slowly release the air in the airbag, and the pressure is reduced to restore normal drainage.

[0046] 10. Device Replacement and Removal: Replace the device every 3-5 days under normal use. When removing the device, first unfasten the buckle of the elastic cord 31, and then gently lift it from the edge of the circular film 1. Avoid pulling the drainage tube forcefully throughout the process to prevent damage to the puncture site and displacement of the drainage tube.

[0047] Example 2: like Figure 5As shown, the difference between this embodiment and Embodiment 1 is that the circular film 1 is adapted to larger sizes, meeting the needs for skin fixation over a wider area. The treatment chamber 13 has 12 chambers, evenly distributed in a ring, providing a larger liquid capacity and better long-lasting disinfection effect. The elastic rope 31 has a higher tensile strength, adaptable to different waist sizes.

[0048] Meanwhile, a groove 15 is provided on the back of the circular film 1 corresponding to the compression pad 12, which can further improve the breathability of the skin in the puncture area and avoid stuffiness and dampness during long-term wear. The sealing airbag 22 has a higher inflation pressure and a stronger compression sealing effect, which is suitable for high abdominal pressure scenarios and can effectively prevent ascites leakage.

[0049] Detailed installation and usage process 1. Preoperative preparation: Prepare tools according to Example 1, replace the 10ml syringe to adapt to the high-flow inflation requirement, and check the sealing of the device and the integrity of the buckle connection structure.

[0050] 2. Skin preparation: Disinfect with povidone-iodine around the puncture site, with a disinfection area in diameter of not less than 18cm. Allow to dry completely before use, ensuring that the large area to be applied is clean.

[0051] 3. Insertion of drainage tube: Insert the large-diameter ascites drainage tube through the drainage tube hole from the front of the device, and straighten the device to ensure that the drainage tube is centered and without deviation.

[0052] 4. Film application: Remove the release paper, completely cover the disinfection area with the large circular film 1, press and adhere it from the center outwards, smooth out wrinkles and remove air to ensure a firm adhesion.

[0053] 5. Fixing the soft adhesive layer: Press the four corners of the soft adhesive layer 11 in sequence to ensure multi-point adhesion and fixation, thereby improving the overall stability of the device.

[0054] 6. Inflation and sealing of the airbag: Open the sealing cover 23 and inject air into the inner cavity 24 at a uniform speed through the air inlet, so that the sealing airbag 22 can be fully expanded and tightly wrapped around the outer wall of the drainage tube to meet the high pressure anti-leakage requirements. After inflation is completed, close the sealing cover 23.

[0055] 7. Rope reinforcement: The elastic rope 31 is stretched according to the patient's waist circumference, and the connection and fixation are completed by the cooperation of the buckle 33 and the locking plate 35, and adjusted to a suitable tightness.

[0056] 8. Puncture site maintenance and disinfection: Inject an appropriate amount of iodine disinfectant into each of the 12 treatment chambers 13. Combined with the breathable structure of the groove 15, this achieves the dual effects of disinfection and maintenance as well as ventilation and dryness, effectively avoiding skin maceration caused by high pressure leakage.

[0057] 9. Temporary interruption and restoration of drainage: Under high-pressure conditions, the closure effect of the drainage tube can be enhanced by increasing the inflation of the airbag, achieving complete interruption of drainage. When restoring drainage, slowly release the air from the airbag and adjust to a suitable sealing state.

[0058] 10. Device replacement and disassembly: To adapt to high-pressure leakage scenarios and shorten the replacement cycle, the device is replaced every 2-3 days. The disassembly process is the same as in Example 1. After disassembly, check the condition of the puncture point and replace with a new device to continue fixation.

[0059] Example 3: The difference between this embodiment and Embodiment 1 is that the soft gel layer 11 is thickened, providing a better cushioning and pressure-reducing effect, and effectively dispersing the pressure intensity on the skin. The thickened sponge layer 21 has a stronger water absorption and storage capacity, which can fully absorb trace amounts of ascites fluid and disinfectant, keeping the puncture site dry and clean.

[0060] The annular plate 14 is thickened and widened, significantly improving the structural strength of the device and effectively resisting deformation stress generated by patient movement, ensuring stability. Meanwhile, the medical pressure-sensitive adhesive layer on the device surface uses an anti-allergy formula, adding skin-care ingredients such as Vitamin E and aloe vera extract, making it suitable for people with sensitive skin. The sealing cap 23 uses a threaded connection structure, providing stronger sealing and stability, effectively preventing accidental detachment and air leakage.

[0061] Detailed installation and usage process 1. Preoperative preparation: In addition to the tools in Example 1, prepare a medical skin protectant and check that the threaded sealing cap 23 opens and closes smoothly without slippage.

[0062] 2. Skin preparation: Disinfect the puncture area with iodine solution as usual. After the skin is completely dry, apply a layer of skin protectant evenly around the puncture point to form a protective film and reduce irritation from the adhesive layer. Allow the protectant to air dry before use.

[0063] 3. Insertion of drainage tube: Pass the drainage tube through the center of the device's drainage tube hole, and align the device to ensure accurate subsequent fitting.

[0064] 4. Film application: Peel off the release paper from the round film 1, and apply the film flat to the skin surface coated with the protective agent. Gently press the edges to ensure a firm fit, while relying on the anti-allergy adhesive layer to reduce skin irritation.

[0065] 5. Fixing the soft rubber layer: Press the four corners of the soft rubber layer 11 to utilize the cushioning properties of the thickened soft rubber to disperse local pressure and avoid long-term pressure that could lead to skin redness, swelling, or damage.

[0066] 6. Airbag inflation and sealing: Unscrew the threaded sealing cap 23, and tighten the sealing cap 23 after inflation. The threaded structure achieves a high-strength seal and prevents accidental air leakage.

[0067] 7. Rope reinforcement: Connect the elastic rope 31 to the buckle structure according to the standard procedure, adjust the tightness to suit the patient's daily activities.

[0068] 8. Puncture site maintenance and disinfection: Iodine disinfectant is injected into the treatment chamber 13. The thickened sponge layer 21 can fully absorb the disinfectant and trace amounts of leaked fluid, continuously maintaining the puncture site and keeping the area dry and sterile.

[0069] 9. Temporary interruption and restoration of drainage: The operation procedure is the same as in Example 1. Non-invasive interruption of drainage is achieved by inflating and squeezing the airbag, and drainage is restored by deflating the airbag.

[0070] 10. Device replacement and disassembly: For sensitive skin, extend the adaptation period and replace the device every 5-7 days. When disassembling, gently peel off the film to avoid tearing and damaging the delicate skin.

[0071] Although this disclosure has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0072] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

Claims

1. A device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube, comprising a circular film (1), wherein the back of the circular film (1) is coated with a medical pressure-sensitive adhesive layer, characterized in that: A pressing pad (12) is provided at the center of the circular film (1), and a soft rubber layer (11) is also provided inside the circular film (1). The soft rubber layer (11) has a four-pointed star structure, and a first circular hole is provided at the center of the four-pointed star structure. The soft adhesive layer (11) has a medical pressure-sensitive adhesive layer applied to the side of the circular film (1) at the four corners of its edge. A second circular hole is provided in the middle of the circular film (1). A central piece (2) is provided on the back of the pressure pad (12). A coaxial drainage tube hole is provided at the center of the central piece (2) and the pressure pad (12). A sponge layer (21) is provided between the central piece (2) and the pressure pad (12). The pressure pad (12) is made of medical non-woven fabric. A sealing airbag (22) is provided on the back of the central piece (2) corresponding to the drainage tube hole. An inner cavity (24) is provided inside the sealing airbag (22). An air filling port is provided on one side of the inner cavity (24). A one-way control valve is provided at the air filling port, and an openable sealing cover (23) is provided outside the air filling port. The circular film (1) has multiple processing cavities (13) evenly opened on the back corresponding to the pressing pad (12), and an annular plate (14) is inlaid on the back of the circular film (1) around the center piece (2).

2. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The soft adhesive layer (11) is made of medical-grade silicone material, and the four corners of the four-pointed star structure are rounded.

3. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The sealing airbag (22) is made of medical polyurethane material. After inflation, its inner diameter is 0.5-1mm smaller than the outer diameter of the drainage tube, and the inflation pressure is 0.02-0.05MPa.

4. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The number of processing chambers (13) is 6-12, and they are evenly distributed in a ring.

5. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The annular plate (14) is made of medical-grade polypropylene material.

6. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The circular film (1) is also provided with a ring frame (3) on the back. The ring frame (3) is fixedly connected to two sides of the ring frame (3). One end of one of the elastic ropes (31) is fixedly attached to a first docking frame (32). One end of the first docking frame (32) is provided with a buckle (33). The other end of the elastic rope (31) is fixedly attached to a second docking frame (34). One end of the second docking frame (34) is provided with a buckle (35) that matches the buckle (33). The elastic rope (31) is made of medical latex material and its stretching length can reach 2-3 times its natural length.

7. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The circular film (1) has a diameter of 8-12cm and a frustum-shaped structure on the back.

8. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The sponge layer (21) is made of medical polyurethane sponge material, and its water absorption is 10-15 times its own weight.

9. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The circular film (1) also has a groove (15) on the back corresponding to the pressing pad (12).

10. The device for reinforcing and fixing the puncture point of a large amount of ascites drainage tube according to claim 1, characterized in that: The medical pressure-sensitive adhesive layer is an anti-allergy pressure-sensitive adhesive layer, with added vitamin E and aloe vera extract.

Images