Peritoneal dialysis catheter subcutaneous fixing device

Abstract

The utility model relates to the field of medical auxiliary instruments, and discloses a subcutaneous fixing device for a peritoneal dialysis catheter. The peritoneal dialysis catheter subcutaneous fixing device comprises an inner waistband, a front belt body is fixedly connected to the surface of the front end of the inner waistband, a rear belt body is fixedly connected to the side, close to the upper end, of the rear end of the front belt body, and a body protection belt body is fixedly connected to the position, located at the upper end of the rear belt body, of the rear side of the inner waistband; a limiting sleeve is fixedly connected to the surface of the body protection belt body, a rough surface layer is fixedly connected to the side end of the surface of the inner waistband, an outer waistband is installed on the side, close to the rough surface layer, of the surface of the inner waistband, and a stretching belt is rotationally connected to the surface of the right end of the outer waistband. A plurality of sets of limiting devices in different directions are additionally arranged at the catheter, the limiting devices facilitate tightness adjustment and comparison of fixing structures such as an adhesive tape, and the device is better in comfort degree and can be recycled.

Description

Technical Field

[0001] This application belongs to the field of medical auxiliary device technology, specifically a subcutaneous fixation device for peritoneal dialysis catheters. Background Technology

[0002] During peritoneal dialysis treatment, the peritoneal dialysis catheter needs to be fixed in the abdomen. The fixation of the peritoneal dialysis catheter is very important. If you are not careful, the catheter may be pulled, which will cause inconvenience to the peritoneal dialysis treatment and require a second intubation. It will also cause pain to the patient. In addition, the fixation device is usually in close contact with the skin, which will reduce the breathability of the skin around the wound. Prolonged fixation may cause skin allergies and other phenomena. In this case, a peritoneal dialysis catheter fixation device is needed.

[0003] For example, patent CN221384597U discloses a peritoneal dialysis catheter fixing device, relating to the technical field of dialysis catheter fixing devices. It includes a first connector, with arc-shaped clamping portions at both ends, the inner arc surfaces of which are opposite each other. A second connector is located between the two clamping portions, with a channel for the peritoneal dialysis catheter to enter and exit. One of the clamping portions has a fixing component for securing the peritoneal dialysis catheter. The clamping portions can bind the first and second connectors to the patient's waist, making the entire fixing device less prone to movement. The second connector, with its channel for the peritoneal dialysis catheter, clamps the catheter, preventing it from dislodging due to the patient's movements. The catheter exit point, located within the second connector, is further secured, making it even less likely to be pulled out of the patient's body.

[0004] However, the peritoneal dialysis catheter fixation device proposed in this application lacks a multi-angle limiting structure, resulting in poor limiting effect on the peritoneal dialysis catheter during use and insufficient comfort. Utility Model Content

[0005] The purpose of this application is to provide a subcutaneous fixation device for peritoneal dialysis catheters, in order to solve the problem that the aforementioned peritoneal dialysis catheter fixation device lacks a multi-angle limiting structure, resulting in poor limiting effect and insufficient comfort during use.

[0006] The technical solution adopted in this application is as follows: A subcutaneous fixation device for peritoneal dialysis catheters includes an inner waist belt, a front belt body fixedly connected to the front end surface of the inner waist belt, a rear belt body fixedly connected to the rear end of the front belt body near the upper end, a protective belt body fixedly connected to the rear side of the inner waist belt above the rear belt body, a limit sleeve fixedly connected to the surface of the protective belt body, a textured surface layer fixedly connected to the side end of the inner waist belt, an outer waist belt installed on the surface of the inner waist belt near the textured surface layer, and a tension belt rotatably connected to the right end surface of the outer waist belt.

[0007] By adopting the above technical solution, when inserting the peritoneal dialysis catheter into the patient's wound, the tip of the peritoneal dialysis catheter can extend along the lower front side of the posterior belt, clamping the peritoneal dialysis catheter between the anterior and posterior belts. The protective belt installed at the rear end of the inner waist belt is used to connect to the limiting sleeve, and at the same time, the protective belt separates the posterior belt and the peritoneal dialysis catheter at the front end of the posterior belt, improving the comfort of the device. After connecting the tip of the peritoneal dialysis catheter to the titanium connector, the titanium connector is passed through the inside of the limiting sleeve for limitation. Then, the rough surface layer of the inner waist belt side end is connected to the hook surface layer of the outer waist belt inner end. The outer waist belt is used to tie the entire inner waist belt around the patient's waist. Finally, the anterior and posterior belts are closed by pulling the zipper pulls at the top of the anterior and posterior belts. The peritoneal dialysis catheter is held in place by the anterior and posterior bands. Finally, the tension band is rotated and the hook at the top of the tension band is hooked onto the metal ring at the left end of the outer waistband. The tension band is then used to tighten the surface of the anterior band.

[0008] In a preferred embodiment, a hook-and-loop layer is fixedly connected to the inner top of the outer waistband, and a fleece layer is attached to the inner end of the hook-and-loop layer.

[0009] By adopting the above technical solution, when installing the outer waist belt, the installation position of the hook layer on the rough layer can be adjusted according to the patient's waist circumference.

[0010] In a preferred embodiment, a pivot is rotatably connected to the right end surface of the outer waist belt, and a tension belt is fixedly connected to the surface of the pivot.

[0011] By adopting the above technical solution, after the external waist belt is put on the patient's waist, the tension belt can be rotated by the pivot.

[0012] In a preferred embodiment, a limiting band is fixedly connected to the top of the stretch band, and a hook ring is fixedly connected to the top of the limiting band.

[0013] By adopting the above technical solution, the stretch belt can be pulled and stretched. When the hook is connected to the metal ring at different positions in the groove, the stretch belt can be pulled and stretched to change the pressure of the stretch belt on the surface of the front belt body, thereby adjusting the tightness of the front belt body.

[0014] In a preferred embodiment, a groove is provided on the left end surface of the outer waistband, and multiple metal rings are fixedly connected inside the groove.

[0015] By adopting the above technical solution, the tension of the tension belt can be adjusted by connecting the metal rings at multiple positions to the hooks.

[0016] In a preferred embodiment, an external short tube is fitted inside the limiting sleeve, an iodine cap is installed at the front end of the external short tube, a titanium connector is fixedly connected to the rear end of the external short tube, and a peritoneal dialysis catheter is fixedly connected to the rear end of the titanium connector. The peritoneal dialysis catheter is located between the posterior and anterior bands.

[0017] By adopting the above technical solution, iodine caps can be used to disinfect and protect pipelines, reducing the risk of infection. When replacing pipelines, the external short pipe can be disassembled from the titanium fitting for convenient and quick replacement.

[0018] In a preferred embodiment, a zipper strip is installed on the top of the front belt body, a zipper strip is installed on the top of the rear belt body, and a zipper head is installed on the surface of the zipper strip.

[0019] By adopting the above technical solution, when the zipper head is slidable, the zipper strips at the top of the front and rear belts can be engaged, thereby tightening the front and rear belts to limit the peritoneal dialysis catheter.

[0020] In a preferred embodiment, an airbag belt is fixedly connected to the inner end of the outer waist belt, and an inflation port is fixedly installed on the outer end of the outer waist belt.

[0021] By adopting the above technical solution, the inflatable airbag belt is used to fit the patient's lower back, improving the precision of the connection between the outer waist belt and the waist.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0023] In this application, when inserting the peritoneal dialysis catheter into the patient's wound, the tip of the catheter can extend along the lower front side of the posterior belt, clamping the catheter between the anterior and posterior belts. A protective strap installed at the rear end of the inner waistband connects to the limiting sleeve, while the protective strap separates the posterior belt and the peritoneal dialysis catheter at its front end, improving device comfort. When installing the outer waistband, the hook-and-loop surface can be adjusted at the rough surface according to the patient's waist circumference, thereby adjusting the waist size formed by the outer and inner waistbands. An inflatable cuff can be used to conform to the patient's lower back, improving the precision of the connection between the outer and inner waistbands. The anterior and posterior belts are then closed by pulling the zipper pulls at their tops. The peritoneal dialysis catheter is held in place by the anterior and posterior belts, and a tension strap tightens the surface of the anterior belt. The tension belt can be stretched to change the pressure of the tension belt on the surface of the front belt body, thereby adjusting the tightness of the front belt body. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a subcutaneous fixation device for peritoneal dialysis catheters according to this application;

[0025] Figure 2 This is a diagram of the inner waistband and its adjacent structures in this application;

[0026] Figure 3 This is a diagram of the outer waistband and its adjacent structures in this application.

[0027] The markings in the diagram are: 1. Outer waist belt; 2. Inner waist belt; 3. Front belt body; 4. Rear belt body; 5. Airbag belt body; 6. Fleece outer layer; 7. Protective belt body; 8. Zipper strip; 9. Zipper head; 10. Limiting sleeve; 11. Peritoneal dialysis catheter; 12. Titanium connector; 13. External short tube; 14. Iodine cap; 15. Inflation interface; 16. Groove; 17. Metal ring; 18. Hook outer layer; 19. Spindle; 20. Tension belt; 21. Limiting belt; 22. Hook ring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Example:

[0030] Reference Figure 1-3The device includes an outer waist belt 1, an inner waist belt 2 with a front belt body 3 fixedly connected to the front surface, a rear belt body 4 fixedly connected to the rear end of the front belt body 3 near the upper end, a protective belt body 7 fixedly connected to the rear side of the inner waist belt 2 and above the rear belt body 4, a limit sleeve 10 fixedly connected to the surface of the protective belt body 7, a fleece layer 6 fixedly connected to the side of the surface of the inner waist belt 2, an outer waist belt 1 installed on the surface of the inner waist belt 2 near the fleece layer 6, and a tension belt 20 rotatably connected to the right end surface of the outer waist belt 1. The inner waist belt 2 is used to fit the front of the patient's waist. The front belt body 3 and the back belt body 4 connected to the front end of the inner waist belt 2 are located near the wound. The back belt body 4 is located at the upper end of the wound. When the peritoneal dialysis catheter 11 is inserted into the patient's wound, the tip of the peritoneal dialysis catheter 11 can be extended along the lower front side of the back belt body 4, and the peritoneal dialysis catheter 11 can be clamped between the front belt body 3 and the back belt body 4. The protective belt body 7 installed at the rear end of the inner waist belt 2 is used to connect the limiting sleeve 10. At the same time, the protective belt body 7 is used to separate the back belt body 4 and the peritoneal dialysis catheter 11 at the front end of the back belt body 4, thereby improving the comfort of the device. After connecting the tip of the peritoneal dialysis catheter 11 to the titanium connector 12, the titanium connector 12 is passed through the inside of the limiting sleeve 10 for limiting. Then, the textured surface 6 of the inner waist belt 2 is connected to the hook surface 18 of the inner side of the outer waist belt 1. The inner waist belt 2 is then wrapped around the patient's waist using the outer waist belt 1. Next, the front belt body 3 and the rear belt body 4 are closed by pulling the zipper head 9 at the top. The peritoneal dialysis catheter 11 is held in place by the front belt body 3 and the rear belt body 4. Finally, the tension band 20 is rotated, and the hook 22 at the top of the tension band 20 is hooked onto the metal ring 17 at the left end of the outer waist belt 1. The tension band 20 is then used to tighten the surface of the front belt body 3.

[0031] Reference Figure 1 and Figure 3 The outer waist belt 1 has a hook-and-loop layer 18 fixedly connected to its inner top end, and a textured layer 6 is attached to the inner end of the hook-and-loop layer 18. When the outer waist belt 1 is installed, the installation position of the hook-and-loop layer 18 at the textured layer 6 can be adjusted according to the patient's waist circumference, thereby adjusting the waist size composed of the outer waist belt 1 and the inner waist belt 2.

[0032] Reference Figure 3 The right end of the outer waist belt 1 is rotatably connected to a pivot 19, and a tension strap 20 is fixedly connected to the surface of the pivot 19. After the outer waist belt 1 is put on the patient's waist, the pivot 19 can be used to drive the tension strap 20 to rotate, and the tension strap 20 can be adjusted to the surface of the front belt body 3.

[0033] Reference Figure 3The top of the tension band 20 is fixedly connected to a tension band 21, and the top of the tension band 21 is fixedly connected to a hook ring 22. The tension band 20 can be pulled and stretched. When the hook ring 22 is connected to the metal ring 17 at different positions in the groove 16, the tension band 20 can be pulled and stretched to change the pressure of the tension band 20 on the surface of the front belt body 3, thereby adjusting the tightness of the front belt body 3.

[0034] Reference Figure 3 The left end surface of the outer waist belt 1 has a groove 16, and multiple metal rings 17 are fixedly connected inside the groove 16. The metal rings 17 are used to engage with the hook 22.

[0035] Reference Figure 1 and Figure 2 The limiting sleeve 10 houses an external short tube 13, with an iodine cap 14 attached to its front end. A titanium connector 12 is fixedly connected to the rear end of the external short tube 13, and a peritoneal dialysis catheter 11 is fixedly connected to the rear end of the titanium connector 12. The peritoneal dialysis catheter 11 is located between the posterior band 4 and the anterior band 3. When the catheter needs to be replaced, the external short tube 13 can be disassembled from the titanium connector 12 for quick and easy replacement. The iodine cap 14 can be used to disinfect and protect the tubing, reducing the risk of infection. During tubing replacement, the limiting sleeve 10 reduces the shaking of the peritoneal dialysis catheter 11, improving device stability and reducing the burden on the patient.

[0036] Reference Figure 2 A zipper strip 8 is installed at the top of the front band 3 and the top of the rear band 4. A zipper head 9 is installed on the surface of the zipper strip 8. When the zipper head 9 is slid, the zipper strips 8 at the top of the front band 3 and the rear band 4 can be engaged, thereby tightening the front band 3 and the rear band 4 and limiting the peritoneal dialysis catheter 11.

[0037] Reference Figure 1 An airbag belt 5 is fixedly connected to the inner end of the outer waist belt 1, and an inflation port 15 is fixedly installed on the outer end of the outer waist belt 1. The inflatable airbag belt 5 can be used to conform to the patient's lower back, improving the connection precision between the outer waist belt 1 and the waist. An external inflation device is connected to the inflation port 15 to inflate the airbag belt 5.

[0038] The implementation principle of the subcutaneous fixation device for peritoneal dialysis catheters in this application is as follows: The front end of the inner waist belt 2 is connected to the front belt body 3 and the rear belt body 4, which are located near the wound. When the peritoneal dialysis catheter 11 is inserted into the patient's wound, the top end of the peritoneal dialysis catheter 11 can be extended along the lower front side of the rear belt body 4, and the peritoneal dialysis catheter 11 is clamped between the front belt body 3 and the rear belt body 4. The protective belt body 7 installed at the rear end of the inner waist belt 2 is used to connect the limiting sleeve 10. At the same time, the protective belt body 7 is used to separate the rear belt body 4 and the peritoneal dialysis catheter 11 at the front end of the rear belt body 4, thereby improving the comfort of the device. After connecting the tip of the peritoneal dialysis catheter 11 to the titanium connector 12, the titanium connector 12 is passed through the inside of the limiting sleeve 10 for positioning. Next, the textured surface 6 at the side end of the inner waist belt 2 is connected to the hook surface 18 at the inner end of the outer waist belt 1. The outer waist belt 1 is used to secure the inner waist belt 2 to the patient's waist. When installing the outer waist belt 1, the position of the hook surface 18 at the textured surface 6 can be adjusted according to the patient's waist circumference, thereby adjusting the waist size formed by the outer waist belt 1 and the inner waist belt 2. An inflatable airbag belt 5 can be used to conform to the patient's lower back, improving the precision of the connection between the outer waist belt 1 and the waist. Finally, the front belt 3 and the rear belt 4 are closed by pulling the zipper pull 9 at the top of the front belt 3 and the rear belt 4. The peritoneal dialysis catheter 11 is held in place by the anterior band 3 and the posterior band 4. Finally, the tension band 20 is rotated, and its hook 22 at the top engages with the metal ring 17 at the left end of the outer waist band 1, tightening the surface of the anterior band 3. Pulling the tension band 20 can change the pressure on the surface of the anterior band 3, thus adjusting its tightness. When changing the tubing, the external short tube 13 can be disassembled from the titanium connector 12 for quick and easy replacement. The iodine cap 14 can be used to disinfect and protect the tubing, reducing the risk of infection. During tubing replacement, the limiting sleeve 10 reduces the swaying of the peritoneal dialysis catheter 11, improving device stability and reducing the burden on the patient. This device incorporates multiple limiting devices in different directions at the catheter location. These limiting devices allow for easy adjustment of tightness. Compared to other fixation structures such as adhesive bands, this device offers better comfort and is reusable.

[0039] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A subcutaneous fixation device for peritoneal dialysis catheters, comprising an inner waistband (2), characterized in that: The front end surface of the inner waist belt (2) is fixedly connected to a front belt body (3), the rear end of the front belt body (3) and the side near the upper end are fixedly connected to a rear belt body (4), the rear side of the inner waist belt (2) and the upper end of the rear belt body (4) are fixedly connected to a protective belt body (7), the surface of the protective belt body (7) is fixedly connected to a limit sleeve (10), the side end of the surface of the inner waist belt (2) is fixedly connected to a fleece layer (6), the surface of the inner waist belt (2) and the side near the fleece layer (6) are installed with an outer waist belt (1), and the right end surface of the outer waist belt (1) is rotatably connected to a tension belt (20).

2. The subcutaneous fixation device for peritoneal dialysis catheters as described in claim 1, characterized in that: The inner top of the outer waistband (1) is fixedly connected to a hook surface layer (18), and the inner end of the hook surface layer (18) is attached to a textured surface layer (6).

3. The subcutaneous fixation device for peritoneal dialysis catheters as described in claim 1, characterized in that: The right end surface of the outer waist belt (1) is rotatably connected to a pivot (19), and a tension belt (20) is fixedly connected to the surface of the pivot (19).

4. The subcutaneous fixation device for a peritoneal dialysis catheter as described in claim 1, characterized in that: The top of the stretching band (20) is fixedly connected to a limiting band (21), and the top of the limiting band (21) is fixedly connected to a hook (22).

5. The subcutaneous fixation device for a peritoneal dialysis catheter as described in claim 1, characterized in that: The outer waistband (1) has a groove (16) on its left end surface, and a plurality of metal rings (17) are fixedly connected inside the groove (16).

6. The subcutaneous fixation device for a peritoneal dialysis catheter as described in claim 1, characterized in that: The limiting sleeve (10) is fitted with an external short tube (13). The front end of the external short tube (13) is fitted with an iodine cap (14). The rear end of the external short tube (13) is fixedly connected to a titanium connector (12). The rear end of the titanium connector (12) is fixedly connected to a peritoneal dialysis catheter (11). The peritoneal dialysis catheter (11) is located between the posterior band (4) and the anterior band (3).

7. The subcutaneous fixation device for a peritoneal dialysis catheter as described in claim 1, characterized in that: A zipper strip (8) is installed on the top of the front belt (3), a zipper strip (8) is installed on the top of the rear belt (4), and a zipper head (9) is installed on the surface of the zipper strip (8).

8. The subcutaneous fixation device for a peritoneal dialysis catheter as described in claim 1, characterized in that: An airbag belt (5) is fixedly connected to the inner end of the outer waist belt (1), and an inflation port (15) is fixedly installed on the outer end of the outer waist belt (1).

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