Fixing structure applied to peritoneal dialysis drainage tube
By designing a circular drainage tube fixation pad and fastening structure made of medical silicone material, the problem of unstable fixation of peritoneal dialysis drainage tubes was solved, achieving better fixation and patient recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIN HUA HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-28
AI Technical Summary
Existing methods for fixing peritoneal dialysis drainage tubes have drawbacks such as large gaps, easy curling and detachment of adhesive tape, resulting in a high risk of infection at the puncture site, poor fixation performance, and negatively impacting patient recovery.
The circular drainage tube fixation pad, made of medical-grade silicone material, combines a snap-fit structure and a circular groove design. It is fixed to the patient's abdomen with adhesive tape to prevent gaps and enhance the fixation effect. Ventilation holes are also provided on the fixation pad to improve comfort.
It effectively secures the drainage tube, reduces tape curling, lowers the risk of infection, improves patient recovery efficiency, and provides stable fixation.
Smart Images

Figure CN224166703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of peritoneal dialysis drainage tube fixation technology, and in particular to a fixation structure for peritoneal dialysis drainage tubes. Background Technology
[0002] Peritoneal dialysis utilizes the peritoneum's semi-permeable membrane properties. Through gravity, a prepared dialysate is regularly and periodically infused into the patient's peritoneal cavity via a catheter. Due to the concentration gradient of solutes across the peritoneum, solutes from the high-concentration side move to the low-concentration side, while water moves from the hypotonic side to the hypertonic side. By continuously replacing the peritoneal dialysate, the goal is to remove metabolic waste products and toxic substances from the body and correct water and electrolyte imbalances. It is commonly used to treat uremia patients.
[0003] Currently, when performing peritoneal dialysis, medical staff need to insert one end of the dialysis tube through a puncture site in the patient's abdominal skin into the peritoneal cavity, connecting it to the cavity. The other end of the dialysis tube is then connected to the peritoneal dialysis machine to achieve peritoneal dialysis. The middle section of the dialysis tube is then secured to the puncture site on the patient's abdomen with adhesive tape, using the tape to press and fix the middle section of the tube to the puncture site. Figure 1 As shown, there are large gaps between the adhesive tape 20, the drainage tube 30, and the patient's skin 10. The adhesive tape is very easy to curl up from the gaps and eventually fall off. The overall fixation performance is poor, which makes it easy for the patient's puncture site to be infected, which is not conducive to the patient's early recovery and brings great inconvenience to the fixation of the peritoneal dialysis drainage tube. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model aims to provide a fixation structure for peritoneal dialysis drainage tubes. This fixation structure has a reasonable overall design, simple structure, and convenient operation. When the fastening structure is fastened, the inner ring of the drainage tube fixing pad covers the outer wall surface of the middle part of the drainage tube. This fixation structure effectively fixes the drainage tube at the patient's abdominal puncture site, preventing the adhesive tape from curling up at the seams. It has good overall fixation performance, reduces the risk of infection at the puncture site, and promotes early patient recovery, greatly facilitating the fixation of peritoneal dialysis drainage tubes.
[0005] To solve the above technical problems, the present invention adopts the following technical solution:
[0006] A fixation structure for peritoneal dialysis drainage tubes, characterized in that it includes...
[0007] A drainage tube fixing pad is circular in shape and made of medical silicone material. On one side of the drainage tube fixing pad, there is a fastening structure that can fix the middle part of the drainage tube on its inner ring surface when fastened and can release the fixation of the inner ring surface on the middle part of the drainage tube when opened.
[0008] An annular groove is provided on the outer side of the upper surface of the drainage tube fixing pad, which can be effectively fixed to the puncture site on the patient's abdomen with adhesive tape. When fixing with adhesive tape, one side of the tape is adhered to the annular groove and the other side is adhered to the skin of the patient's abdomen.
[0009] A gauze pressing cavity is provided on the side of the drainage tube fixing pad that contacts the patient's abdominal skin for pressing gauze onto the puncture site in the patient's abdomen.
[0010] In a preferred embodiment of this utility model, the fastening structure includes
[0011] A lower protruding tongue is provided on the lower surface of one end of the drainage tube fixing pad, and multiple lower engaging protrusions are provided on the lower protruding tongue at intervals along the diameter direction of the drainage tube fixing pad.
[0012] An upper protrusion corresponding to the lower protrusion is provided on the upper surface of the other end of the drainage tube fixing pad. The upper protrusion is provided with a plurality of upper fastening holes corresponding to the lower fastening protrusions at intervals along the diameter direction of the drainage tube fixing pad. The thickness of the upper protrusion and the lower protrusion is the same as the thickness of the drainage tube fixing pad.
[0013] In a preferred embodiment of the present invention, a drainage tube reinforcing sleeve is provided on the drainage tube fixing pad and at the position of its inner ring. When the fastening structure is fastened, it can fix the middle part of the drainage tube on its inner surface and when it is opened, it can release the fixation of the middle part of the drainage tube by its inner surface. The inner circumferential surface of the drainage tube reinforcing sleeve is pressed against the outer tube wall of the middle part of the drainage tube.
[0014] In a preferred embodiment of this utility model, the fastening structure further includes
[0015] An inner protruding tongue is provided on the inner circumferential surface of one end of the drainage tube reinforcement sleeve, and multiple inner snap-fit protrusions are provided on the inner protruding tongue at intervals along the axial direction of the drainage tube reinforcement sleeve.
[0016] An outer protruding tongue corresponding to the inner protruding tongue is provided on the outer surface of the other end of the drainage tube reinforcement sleeve. The outer protruding tongue is provided with a plurality of outer fastening holes corresponding to the inner fastening protrusions at intervals along the axial direction of the drainage tube reinforcement sleeve. The thickness of the outer protruding tongue is the same as that of the inner protruding tongue and the thickness of the drainage tube reinforcement sleeve.
[0017] In a preferred embodiment of this utility model, the drainage tube fixing pad is provided with a plurality of vent holes that can effectively improve the air permeability of the gauze pressed against the puncture site on the patient's abdomen, and the vent holes are connected to the gauze pressing cavity.
[0018] Compared with existing technologies, this utility model has a reasonable overall design, simple structure, and convenient operation. When the fastening structure is fastened, the inner ring of the drainage tube fixing pad covers the outer wall of the middle part of the drainage tube, and the drainage tube passes through the inner ring of the drainage tube fixing pad, avoiding the drainage tube from coming out from the side of the adhesive tape with a large gap. This also prevents the adhesive tape from curling at the gap. Through this fixing structure, the drainage tube can be effectively fixed at the puncture site of the patient's abdomen. The overall fixation performance is good, and it is not easy for the patient's puncture site to be infected, which is conducive to the patient's early recovery and brings great convenience to the fixation of peritoneal dialysis drainage tubes. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the existing technology that uses adhesive tape to fix the drainage tube.
[0021] Figure 2 This is a schematic diagram of the structure of this utility model.
[0022] Figure 3 This is a top view of the present invention.
[0023] Figure 4 for Figure 3 AA sectional view.
[0024] Figure 5 This is a schematic diagram of the structure of the present invention, which fixes the drainage tube at the puncture site in the patient's abdomen. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0026] Reference Figures 2-5 As shown in the figure, a fixation structure for peritoneal dialysis drainage tubes is provided, including a drainage tube fixation pad 100 that is circular in shape and made of medical silicone material.
[0027] A fastening structure 200 is provided on one side of the drainage tube fixing pad 100, which can fix the middle part of the drainage tube on its inner ring surface when fastened and can release the fixation of the inner ring surface of the drainage tube to the middle part when opened.
[0028] An annular groove 110 is provided on the outer side of the upper surface of the drainage tube fixing pad 100, which can be effectively fixed to the puncture site of the patient 10's abdomen by adhesive tape 300. When fixing by adhesive tape 300, one side of the adhesive tape 300 is adhered to the annular groove 110, and the other side is adhered to the skin of the patient 10's abdomen.
[0029] A gauze pressing cavity 130 is provided on the side of the drainage tube fixing pad 100 that contacts the abdominal skin of the patient 10 for pressing the gauze 600 onto the puncture site of the patient 10's abdomen. When the drainage tube fixing pad 100 is pressed onto the puncture site of the patient 10's abdomen, the gauze pressing cavity 130 can cover the outside of the gauze 600 that is placed on the puncture site of the patient's abdomen.
[0030] The fastening structure 200 includes a lower protrusion 210 and an upper protrusion 220. The lower protrusion 210 is disposed on the lower surface of one end of the drainage tube fixing pad 100. Multiple lower fastening protrusions 211 are provided on the lower protrusion 210 at intervals along the diameter direction of the drainage tube fixing pad 100.
[0031] The upper protruding tongue 220 corresponds to the lower protruding tongue 210. The upper protruding tongue 220 is set on the upper surface of the other end of the drainage tube fixing pad 100. The upper protruding tongue 220 is provided with a plurality of lower fastening protrusions 211 at intervals along the diameter direction of its drainage tube fixing pad 100, and the thickness of the upper protruding tongue 220 and the lower protruding tongue 210 is the same as the thickness of the drainage tube fixing pad 100.
[0032] A drainage tube reinforcing sleeve 500 is provided on the drainage tube fixing pad 100 and at the position of its inner ring. When the fastening structure is fastened, it can fix the middle part of the drainage tube on its inner surface and when it is opened, it can release the fixation of the middle part of the drainage tube by its inner surface. The inner circumferential surface of the drainage tube reinforcing sleeve 500 is pressed on the outer tube wall of the middle part of the drainage tube 400.
[0033] The fastening structure 200 also includes an inner protruding tongue 230 and an outer protruding tongue 240. The inner protruding tongue 230 is disposed on the inner circumferential surface of one end of the drainage tube reinforcing sleeve 500. Multiple inner fastening protrusions 231 are provided on the inner protruding tongue 230 at intervals along the axial direction of the drainage tube reinforcing sleeve 500.
[0034] The outer protruding tongue 240 corresponds to the inner protruding tongue 230. The outer protruding tongue 240 is set on the outer surface of the other end of the drainage tube reinforcing sleeve 500. Multiple inner fastening protrusions 231 are spaced apart on the outer protruding tongue 240 along the axial direction of its drainage tube reinforcing sleeve 500, corresponding to the outer fastening holes. The thickness of the outer protruding tongue 240 and the inner protruding tongue 230 is the same as the thickness of the drainage tube reinforcing sleeve 500.
[0035] The drainage tube fixing pad 100 is provided with multiple ventilation holes 120 that can effectively improve the air permeability of the gauze pressed against the puncture site on the patient's abdomen. The ventilation holes 120 are connected to the gauze pressing cavity 130. This structure can effectively improve the air permeability of the gauze pressed against the puncture site on the patient's abdomen, which not only improves the patient's comfort, but also helps the patient to recover as soon as possible.
[0036] In summary, this utility model has a reasonable overall design, simple structure, and convenient operation. When the fastening structure is fastened, the inner ring of the drainage tube fixing pad covers the outer wall of the middle part of the drainage tube, and the drainage tube passes through the inner ring of the drainage tube fixing pad, avoiding the drainage tube from coming out from the side of the adhesive tape with a large gap. This also prevents the adhesive tape from curling at the gap. This fixing structure can effectively fix the drainage tube at the puncture site of the patient's abdomen. The overall fixation performance is good, and it is not easy for the patient's puncture site to be infected, which is conducive to the patient's early recovery and brings great convenience to the fixation of peritoneal dialysis drainage tubes.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fixation structure for peritoneal dialysis drainage tubes, characterized in that, include A drainage tube fixing pad is circular in shape and made of medical silicone material. On one side of the drainage tube fixing pad, there is a fastening structure that can fix the middle part of the drainage tube on its inner ring surface when fastened and can release the fixation of the inner ring surface on the middle part of the drainage tube when opened. An annular groove is provided on the outer side of the upper surface of the drainage tube fixing pad, which can be effectively fixed to the puncture site on the patient's abdomen with adhesive tape. When fixing with adhesive tape, one side of the tape is adhered to the annular groove and the other side is adhered to the skin of the patient's abdomen. A gauze pressing cavity is provided on the side of the drainage tube fixing pad that contacts the patient's abdominal skin for pressing gauze onto the puncture site in the patient's abdomen.
2. The fixation structure for peritoneal dialysis drainage tubes as described in claim 1, characterized in that: The fastening structure includes A lower protruding tongue is provided on the lower surface of one end of the drainage tube fixing pad, and multiple lower engaging protrusions are provided on the lower protruding tongue at intervals along the diameter direction of the drainage tube fixing pad. An upper protrusion corresponding to the lower protrusion is provided on the upper surface of the other end of the drainage tube fixing pad. The upper protrusion is provided with a plurality of upper fastening holes corresponding to the lower fastening protrusions at intervals along the diameter direction of the drainage tube fixing pad. The thickness of the upper protrusion and the lower protrusion is the same as the thickness of the drainage tube fixing pad.
3. The fixation structure for peritoneal dialysis drainage tubes as described in claim 2, characterized in that: A drainage tube reinforcement sleeve is provided on the drainage tube fixing pad and at the position of its inner ring. When the fastening structure is fastened, it can fix the middle part of the drainage tube on its inner surface and when it is opened, it can release the fixation of the middle part of the drainage tube by its inner surface. The inner circumferential surface of the drainage tube reinforcement sleeve is pressed on the outer tube wall of the middle part of the drainage tube.
4. The fixation structure for peritoneal dialysis drainage tubes as described in claim 3, characterized in that: The fastening structure also includes An inner protruding tongue is provided on the inner circumferential surface of one end of the drainage tube reinforcement sleeve, and multiple inner snap-fit protrusions are provided on the inner protruding tongue at intervals along the axial direction of the drainage tube reinforcement sleeve. An outer protruding tongue corresponding to the inner protruding tongue is provided on the outer surface of the other end of the drainage tube reinforcement sleeve. The outer protruding tongue is provided with a plurality of outer fastening holes corresponding to the inner fastening protrusions at intervals along the axial direction of the drainage tube reinforcement sleeve. The thickness of the outer protruding tongue is the same as that of the inner protruding tongue and the thickness of the drainage tube reinforcement sleeve.
5. The fixation structure for peritoneal dialysis drainage tubes as described in claim 4, characterized in that: The drainage tube fixing pad is provided with multiple ventilation holes that can effectively improve the air permeability of the gauze pressed against the puncture site on the patient's abdomen. The ventilation holes are connected to the gauze pressing cavity.