Auxiliary device for fixing peritoneal dialysis catheter

Abstract

The invention relates to a peritoneal dialysis catheter fixing auxiliary device which comprises a bottom plate used for shielding a stoma and a bandage used for fixing the bottom plate on the body of a patient, a first through hole penetrating in the thickness direction is formed in the bottom plate and used for allowing a dialysis catheter to penetrate through, a sleeve is installed in the first through hole, one end of the sleeve is communicated with the first through hole, and the other end of the sleeve is communicated with the bandage. The other end extends downwards; a cover plate is rotationally matched above the bottom plate, the bottom surface of the cover plate is in sealing fit with the top surface of the bottom plate, a second through hole penetrating in the thickness direction is formed in the cover plate, and the first through hole is located on the rotating track of the second through hole. According to the technical scheme, by means of the mode that the sleeve is retained in the stoma, healing of the stoma in the interval period can be avoided, a special dialysis tube daily nursing tool does not need to be used, the discomfort of a patient in daily life is effectively reduced, the opening and closing state of the stoma can be adjusted, and operation of medical staff is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of stoma sealing appliances, and in particular to a peritoneal dialysis catheter fixing auxiliary device. Background Art

[0002] Peritoneal dialysis is a type of dialysis that uses the body's own peritoneum as a dialysis membrane. The dialysate infused into the peritoneal cavity exchanges solutes and water with the plasma components in the capillaries on the other side of the peritoneum, removing the metabolic products and excess water retained in the body, while replenishing the body's necessary substances through the dialysate. By continuously renewing the peritoneal dialysis fluid, the purpose of kidney replacement or supportive therapy is achieved.

[0003] During the operation, a stoma is created in the patient's abdomen to insert the dialysis tube into the abdominal cavity. During the dialysis treatment, multiple dialysis operations need to be performed in different time periods. To prevent the stoma from healing during the interval, part of the dialysis tube will be left in the peritoneum and part will be placed outside the body.

[0004] The dialysis tube is indwelling in the patient's body, and in daily life, the dialysis tube indwelling in the patient's body needs to be treated with special dialysis tube care appliances, which has a certain impact on the patient's life. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a peritoneal dialysis catheter fixing auxiliary device to solve the problem that the dialysis tube in the prior art is retained in the patient's body, and in daily life, the dialysis tube retained in the patient's body needs to be treated with special dialysis tube care tools, which has a certain impact on the patient's life.

[0006] The present invention is achieved through the following technical solutions:

[0007] A peritoneal dialysis catheter fixing auxiliary device, comprising a bottom plate for covering a stoma and a strap for fixing the bottom plate on a patient's body, wherein the bottom plate is provided with a first through hole penetrating in a thickness direction for a dialysis tube to pass through, a sleeve is installed in the first through hole, one end of the sleeve is connected to the first through hole, and the other end extends downward;

[0008] A cover plate is rotatably mounted above the bottom plate, the bottom surface of the cover plate is sealed with the top surface of the bottom plate, a second through hole penetrating along the thickness direction is provided on the cover plate, and the first through hole is located on the rotation track of the second through hole.

[0009] It is further defined that a sleeve is connected to the top surface of the base plate, the cover plate is rotatably fitted in the sleeve, the upper end of the sleeve is folded inward to form an annular retaining ring, the annular retaining ring is located above the edge of the cover plate, and an elastic support assembly is arranged between the annular retaining ring and the edge of the cover plate.

[0010] It is further defined that the elastic support assembly includes a pressure ring covering the edge of the top surface of the cover plate and a plurality of support springs installed on the pressure ring, wherein the plurality of support springs are evenly distributed along the circumferential direction of the pressure ring, and the two ends of the support springs are respectively against the bottom surface of the annular retaining ring and the top surface of the pressure ring.

[0011] It is further defined that a guide tube and a guide pin are provided in the support spring, the upper end of the guide tube is connected to the bottom surface of the annular retaining ring, the lower end of the guide pin is connected to the top surface of the pressure ring, and the upper end of the guide pin is inserted into the lower end of the guide tube.

[0012] It is further defined that a first annular baffle is connected to the inner side of the annular baffle, the upper end of the first annular baffle is connected to the annular baffle, and the lower end of the first annular baffle extends downward;

[0013] A second annular baffle is disposed on the top surface of the cover plate, the lower end of the second annular baffle is connected to the cover plate, the upper end of the second annular baffle extends upward, and the second annular baffle is sleeved outside the first annular baffle.

[0014] It is further defined that an annular groove is provided on the inner side of the annular retaining ring, and an annular convex ridge which cooperates and engages with the annular groove is provided on the outer wall of the upper end of the first annular baffle.

[0015] It is further defined that a limit sink is provided at the upper end of the first through hole, a limit ring protrudes outwardly from the upper end of the sleeve, and the limit ring is located in the limit sink;

[0016] The lower end of the sleeve shrinks inwardly to form a cone shape, and the port at the lower end of the sleeve is an annular cutting edge.

[0017] It is further defined that a positioning column protruding upward is provided at the center of the top surface of the bottom plate, and the positioning column is inserted upward into the cover plate;

[0018] A knob is connected to the center of the top surface of the cover plate.

[0019] It is further defined that a breathable layer is connected to the bottom surface of the bottom plate.

[0020] It is further defined that the bottom plate is provided with a third through hole penetrating in the thickness direction, the third through hole is located on the rotation track of the second through hole, and the distance between the third through hole and the first through hole is greater than the aperture of the second through hole;

[0021] The bottom surface of the base plate is provided with a first air guide groove, a second air guide groove and a plurality of exhaust grooves. The first air guide groove is arranged outside the first through hole. The two ends of the second air guide groove are respectively connected to the first air guide groove and the third through hole. One end of a plurality of exhaust grooves is connected to the first air guide groove, and the other end extends out of the base plate.

[0022] The beneficial effects of the present invention are:

[0023] The peritoneal dialysis catheter fixing auxiliary device can prevent the stoma from healing during the interval by arranging a sleeve to be retained in the stoma, and does not need to use special dialysis tube daily care tools, which effectively reduces the patient's daily life discomfort. The stoma opening and closing state can be adjusted, which is convenient for medical staff to operate.

[0024] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The three-dimensional Figure 1 ;

[0026] Figure 2 The three-dimensional Figure 2 ;

[0027] Figure 3 A top view of the present invention;

[0028] Figure 4 It is a front view of the present invention;

[0029] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of AA;

[0030] Figure 6 is a schematic diagram of the structure of the sleeve;

[0031] Figure 7 is a structural schematic diagram of the cover plate;

[0032] Figure 8 It is a structural schematic diagram of the pressure ring;

[0033] Fig. 9 Schematic diagram of the top surface structure of the bottom plate;

[0034] Fig.10 is a schematic diagram of the bottom surface structure of the base plate;

[0035] In the figure: 1. bottom plate; 2. binding band; 3. first through hole; 4. sleeve; 5. cover plate; 6. second through hole; 7. sleeve; 8. annular retaining ring; 9. support spring; 10. pressure ring; 11. guide tube; 12. guide pin; 13. first annular baffle plate; 14. second annular baffle plate; 15. annular convex ridge; 16. limiting sink; 17. limiting ring; 18. positioning column; 19. knob; 20. breathable layer; 21. third through hole; 22. first air guide groove; 23. second air guide groove; 24. exhaust groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0041] See also Figure 1-10 The present invention provides a technical solution: a peritoneal dialysis catheter fixing auxiliary device, comprising a base plate 1 for covering a stoma and a strap 2 for fixing the base plate 1 on a patient's body, the base plate 1 is provided with a first through hole 3 penetrating along the thickness direction for the dialysis tube to pass through, a sleeve 4 is installed in the first through hole 3, one end of the sleeve 4 is connected to the first through hole 3, and the other end extends downward; a cover plate 5 is rotatably matched above the base plate 1, the bottom surface of the cover plate 5 is sealed with the top surface of the base plate 1, a second through hole 6 penetrating along the thickness direction is provided on the cover plate 5, and the first through hole 3 is located on the rotation trajectory of the second through hole 6.

[0042] The bottom plate 1 is fixed to the patient's body by a binding band 2, which will cover the stoma. The first through hole 3 serves as an insertion channel for the dialysis tube. The sleeve 4 connected to the first through hole 3 will extend through the patient's abdominal epidermis and muscle tissues as the structure of the first through hole 3, providing a fixed channel for the insertion and withdrawal of the dialysis tube. The cover plate 5 is rotatably fitted on the bottom plate 1, and a second through hole 6 is provided on the bottom plate. The second through hole 6 will rotate along with the rotation of the cover plate 5, and the first through hole 3 is located on the rotation track of the second through hole 6, that is, the second through hole 6 can be relatively connected to the first through hole 3 or the second through hole 6 can be staggered with the first through hole 3 by rotating the cover plate 5. Then, when the second through hole 6 is connected to the first through hole 3, the first through hole 3 is in an open state, and when the second through hole 6 is staggered with the first through hole 3, the first through hole 3 is in a state of being closed by the cover plate 5.

[0043] In the specific operation, the stoma is firstly performed on the patient's abdomen, and then the device is installed. During the installation, the lower end of the sleeve 4 is inserted into the stoma and extended into the patient's abdominal cavity, and then fixed by the bandage 2;

[0044] When dialysis is required, the cover plate 5 is rotated to make the second through hole 6 and the first through hole 3 relatively connected, and the dialysis tube formed by the second through hole 6, the first through hole 3 and the sleeve 4 can be extended into the patient's abdominal cavity. After a single dialysis is completed, the dialysis tube is pulled out and then the cover plate 5 is rotated again to make the second through hole 6 and the first through hole 3 staggered, so that the first through hole 3 will be covered by the cover plate 5, so that the channel is in a closed state;

[0045] This technical solution, by arranging the sleeve 4 to be retained in the stoma, can prevent the stoma from healing during the interval period, eliminates the need to use special dialysis tube daily care appliances, effectively reduces the patient's discomfort in daily life, and can adjust the opening and closing state of the stoma, making it easier for medical staff to operate.

[0046] It is further defined that the top surface of the base plate 1 is connected to a sleeve 7, the cover plate 5 is rotatably fitted in the sleeve 7, the upper end of the sleeve 7 is folded inward to form an annular retaining ring 8, the annular retaining ring 8 is located above the edge of the cover plate 5, and an elastic support component is arranged between the annular retaining ring 8 and the edge of the cover plate 5.

[0047] The sleeve 7 is connected to the bottom plate 1, serving as a structural extension of the bottom plate 1 and a rotation space constraint structure of the cover plate 5. The annular retaining ring 8 formed by the inward folding of the upper end of the sleeve 7 serves as the basis of the elastic support component. The elastic support component can apply a downward thrust to the edge of the cover plate 5, so that the cover plate 5 remains in contact with the bottom plate 1, thereby improving the sealing effect of the cover plate 5 on the first through hole 3;

[0048] In order to improve the sealing effect of the cover plate 5 on the first through hole 3, an annular groove may be provided on the top surface of the bottom plate 1, the annular groove surrounds the first through hole 3, and a sealing ring is placed in the annular groove.

[0049] It is further defined that the elastic support assembly includes a pressure ring 10 covering the edge of the top surface of the cover plate 5 and a plurality of support springs 9 installed on the pressure ring 10, wherein the plurality of support springs 9 are evenly distributed along the circumferential direction of the pressure ring 10, and the two ends of the support spring 9 are respectively against the bottom surface of the annular retaining ring 8 and the top surface of the pressure ring 10.

[0050] The pressure ring 10 serves as a contact point with the cover plate 5 , and is supported by a plurality of support springs 9 with the annular retaining ring 8 . The support springs 9 exert pressure on the cover plate 5 to keep the cover plate 5 in contact with the base plate 1 .

[0051] It is further defined that a guide tube 11 and a guide pin 12 are provided in the support spring 9 , the upper end of the guide tube 11 is connected to the bottom surface of the annular retaining ring 8 , the lower end of the guide pin 12 is connected to the top surface of the pressure ring 10 , and the upper end of the guide pin 12 is inserted into the lower end of the guide tube 11 .

[0052] The guide tube 11 is integrally formed with the annular retaining ring 8 and remains in a fixed state. The guide pin 12 is integrally formed with the pressure ring 10 and is inserted into the guide tube 11 and slidingly cooperates with the guide tube 11. It can adapt to the expansion and contraction of the support spring 9 and serve as a rotation limiting structure of the pressure ring 10, so that the pressure ring 10 remains relatively fixed with the annular retaining ring 8 when the cover plate 5 rotates, that is, it can maintain the shape of the support spring 9.

[0053] It is further defined that a first annular baffle plate 13 is connected to the inner side of the annular baffle ring 8, the upper end of the first annular baffle plate 13 is connected to the annular baffle ring 8, and the lower end extends downward;

[0054] A second annular baffle 14 is disposed on the top surface of the cover plate 5 . The lower end of the second annular baffle 14 is connected to the cover plate 5 , and the upper end thereof extends upward. The second annular baffle ring 8 is sleeved outside the first annular baffle ring 8 .

[0055] The first annular baffle 13 and the second annular baffle 14 are connected to the annular baffle ring 8 and the cover plate 5 respectively, and the two are in a sleeved state, which can maintain the sealing state of the gap between the annular baffle ring 8 and the cover body when the cover body rotates.

[0056] It is further defined that an annular groove is provided on the inner side of the annular retaining ring 8 , and an annular convex ridge 15 which is engaged with the annular groove is provided on the outer wall of the upper end of the first annular baffle 13 .

[0057] The first annular baffle 13 and the annular retaining ring 8 are connected in a detachable manner through the cooperation of the annular convex ridges 15 and the annular grooves, which can facilitate assembly and disassembly.

[0058] It is further defined that a limit sink 16 is disposed at the upper end of the first through hole 3, a limit ring 17 protrudes outward from the upper end of the sleeve 4, and the limit ring 17 is located in the limit sink 16;

[0059] The lower end of the sleeve 4 contracts inwardly to form a cone shape, and the port at the lower end of the sleeve 4 is an annular cutting edge.

[0060] A limiting ring 17 is arranged at the upper end of the sleeve 4, and the limiting sink 16 cooperates with each other to form a limiting structure, which can improve the connection stability between the sleeve 4 and the first through hole 3. At the same time, the limiting sink 16 can also serve as a accommodating space for the limiting ring 17, so that the surface of the bottom plate 1 remains flat;

[0061] The lower end of the sleeve 4 is located in the patient's abdominal cavity during use, and the caliber of its port can be set according to the outer diameter of the dialysis tube so that the port can fit the outer wall of the dialysis tube, and the port at the lower end of the sleeve 4 is an annular cutting edge, which can scrape off the body fluid or dialysate attached to the surface of the dialysis tube when the dialysis tube is drawn out, wherein the sleeve 4 can be made of flexible materials such as silicone, and the sleeve 4 has a certain thickness as a whole so that it can support the shape of the stoma while being flexible, and at the same time, the lower end thereof is a cutting edge to reduce the thickness and can have a larger deformation amount relative to other positions.

[0062] It is further defined that a positioning column 18 protruding upward is provided at the center of the top surface of the bottom plate 1, and the positioning column 18 is inserted upward into the cover plate 5;

[0063] A knob 19 is connected to the center of the top surface of the cover plate 5 .

[0064] The bottom plate 1 positions the cover plate 5 through the positioning column 18. The rotation of the cover plate 5 will use the positioning column 18 as a fulcrum to improve the stability of the overall structure. The knob 19 on the cover plate 5 can be a protruding wheel-shaped structure, which can be used as a force-applying part for the operator.

[0065] It is further defined that a breathable layer 20 is connected to the bottom surface of the bottom plate 1 .

[0066] The breathable layer 20 can be a cushion layer supported by medical non-woven fabrics, gauze, etc., which will serve as a direct contact surface with the patient's skin and can form a breathable structure between the base plate 1 and the patient's skin, thereby reducing the patient's discomfort.

[0067] It is further defined that the bottom plate 1 is provided with a third through hole 21 penetrating along the thickness direction, the third through hole 21 is located on the rotation track of the second through hole 6, and the distance between the third through hole 21 and the first through hole 3 is greater than the aperture of the second through hole 6;

[0068] The bottom surface of the base plate 1 is provided with a first air guide groove 22, a second air guide groove 23 and a plurality of exhaust grooves 24. The first air guide groove 22 is arranged outside the first through hole 3. The two ends of the second air guide groove 23 are respectively connected to the first air guide groove 22 and the third through hole 21. One end of the plurality of exhaust grooves 24 is connected to the first air guide groove 22, and the other end extends out of the base plate 1.

[0069] The bottom surface of the bottom plate 1 forms an air guide structure surrounding the outside of the first through hole 3 by providing a first air guide groove 22, and a third through hole 21 is provided and a second air guide groove 23 is provided between the third through hole 21 and the first air guide groove 22, the first air guide groove 22 is connected with the third through hole 21 through the second air guide groove 23, and the first air guide groove 22 is connected with the outer space of the bottom plate 1 through a plurality of exhaust grooves 24. After the dialysis is completed, the first through hole 3 is closed by rotating the cover plate 5, so that the second through hole 6 can be connected with the third through hole 21, so that the exhaust groove 24, the first air guide groove 22, the second air guide groove 23 and the third through hole 21 are connected in sequence to form an air flow channel, which can be used as a heat dissipation breathing channel for the patient's skin pressed by the bottom plate 1, which is conducive to heat loss and reduces sweating;

[0070] In addition, the breathable layer 20 may be soaked by the patient's body fluids or dialysate during use, so the cover plate 5 can be adjusted to rotate so that the exhaust groove 24, the first air guide groove 22, the second air guide groove 23 and the third through hole 21 are connected in sequence, and then air can be introduced into the air flow channel at the third through hole 21 through an external device. The moisture adsorbed in the breathable layer 20 can be carried out by air flow without being removed.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A peritoneal dialysis catheter fixing auxiliary device, characterized in that: The invention comprises a bottom plate for covering the stoma and a strap for fixing the bottom plate on the patient's body, wherein the bottom plate is provided with a first through hole penetrating in the thickness direction for the dialysis tube to pass through, a sleeve is installed in the first through hole, one end of the sleeve is connected with the first through hole, and the other end extends downward; A cover plate is rotatably mounted above the bottom plate, the bottom surface of the cover plate is sealed with the top surface of the bottom plate, a second through hole penetrating along the thickness direction is provided on the cover plate, and the first through hole is located on the rotation track of the second through hole.

2. The peritoneal dialysis catheter fixing auxiliary device according to claim 1, characterized in that: The top surface of the bottom plate is connected with a sleeve, the cover plate is rotatably fitted in the sleeve, the upper end of the sleeve is folded inward to form an annular retaining ring, the annular retaining ring is located above the edge of the cover plate, and an elastic support component is arranged between the annular retaining ring and the edge of the cover plate.

3. The peritoneal dialysis catheter fixing auxiliary device according to claim 2, characterized in that: The elastic support assembly includes a pressure ring covering the edge of the top surface of the cover plate and a plurality of support springs installed on the pressure ring. The plurality of support springs are evenly distributed along the circumferential direction of the pressure ring, and the two ends of the support spring are respectively against the bottom surface of the annular retaining ring and the top surface of the pressure ring.

4. The peritoneal dialysis catheter fixing auxiliary device according to claim 3, characterized in that: A guide tube and a guide pin are arranged in the support spring. The upper end of the guide tube is connected to the bottom surface of the annular retaining ring, the lower end of the guide pin is connected to the top surface of the pressure ring, and the upper end of the guide pin is inserted into the lower end of the guide tube.

5. The peritoneal dialysis catheter fixing auxiliary device according to claim 2, characterized in that: A first annular baffle is connected to the inner side of the annular baffle, the upper end of the first annular baffle is connected to the annular baffle, and the lower end of the first annular baffle extends downward; A second annular baffle is disposed on the top surface of the cover plate, the lower end of the second annular baffle is connected to the cover plate, the upper end of the second annular baffle extends upward, and the second annular baffle is sleeved outside the first annular baffle.

6. The peritoneal dialysis catheter fixing auxiliary device according to claim 5, characterized in that: An annular groove is provided on the inner side of the annular retaining ring, and an annular convex ridge which is engaged with the annular groove is provided on the outer wall of the upper end of the first annular retaining plate.

7. The peritoneal dialysis catheter fixing auxiliary device according to claim 1, characterized in that: A limit sink is provided at the upper end of the first through hole, a limit ring protrudes outward from the upper end of the sleeve, and the limit ring is located in the limit sink; The lower end of the sleeve shrinks inwardly to form a cone shape, and the port at the lower end of the sleeve is an annular cutting edge.

8. The peritoneal dialysis catheter fixing auxiliary device according to claim 1, characterized in that: A positioning column protruding upward is provided at the center of the top surface of the bottom plate, and the positioning column is inserted upward into the cover plate; A knob is connected to the center of the top surface of the cover plate.

9. The peritoneal dialysis catheter fixing auxiliary device according to any one of claims 1 to 8, characterized in that: The bottom surface of the bottom plate is connected with a breathable layer.

10. The peritoneal dialysis catheter fixing auxiliary device according to claim 9, characterized in that: The bottom plate is provided with a third through hole penetrating along the thickness direction, the third through hole is located on the rotation track of the second through hole, and the distance between the third through hole and the first through hole is greater than the aperture of the second through hole; The bottom surface of the base plate is provided with a first air guide groove, a second air guide groove and a plurality of exhaust grooves. The first air guide groove is arranged outside the first through hole. The two ends of the second air guide groove are respectively connected to the first air guide groove and the third through hole. One end of a plurality of exhaust grooves is connected to the first air guide groove, and the other end extends out of the base plate.

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