Hemodialysis catheter fixing application

By designing a fixation dressing for hemodialysis catheters, and using a storage bag and staggered fixation straps, the problems of catheter weight pulling and contamination were solved, achieving stable fixation, reducing the risk of infection and skin allergies, and improving user comfort.

CN223529771UActive Publication Date: 2025-11-11RENJI HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202422786340.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-11-11
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing methods for fixing hemodialysis catheters have problems such as the weight of the catheter itself pulling on it, susceptibility to contamination, and loosening of the tape. These issues can lead to suture detachment, bleeding at the puncture site, catheter displacement, and an increased risk of infection. Furthermore, the use of tape can easily cause skin allergies.

Method used

A hemodialysis catheter fixation dressing was designed, comprising a dressing body, a storage bag, a fixing plate, and a bandage. The storage bag supports the catheter end, and the staggered fixing plate and bandage are used to fix it, avoiding catheter exposure and adhesive contact. The bandage is connected by Velcro or knotting to achieve a firm fixation.

Benefits of technology

It effectively avoids the pulling and contamination caused by the weight of the inserted tube, reduces the risk of infection, avoids skin allergies, provides a stable fixation effect, and improves the comfort and safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a hemodialysis catheter fixing application, a dressing is arranged on the back face of an application body, a fixing device is arranged on the front face of the application body, and the fixing device comprises a first storage bag, a second storage bag, a first fixing piece, a second fixing piece, a first bandage and a second bandage. The first storage bag and the second storage bag are oppositely arranged up and down, the first storage bag and the second storage bag are respectively and fixedly connected with the application body, and a bag opening of the first storage bag is opposite to a bag opening of the second storage bag; the first fixing piece and the second fixing piece are arranged in a bilateral symmetry mode with the center connecting line of the first storage bag and the second storage bag as the symmetry axis, the right side edge of the first fixing piece is fixedly connected with the application body, and the left side edge of the first fixing piece is connected with one end of the first bandage. The left side edge of the second fixing piece is fixedly connected with the application body, and the right side edge of the second fixing piece is connected with one end of the second bandage. The technical problems that in the prior art, a built-in pipe is pulled and exposed due to the dead weight, and an adhesive tape is loosened are solved.
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Description

Technical Field

[0001] This utility model relates to the field of human life necessities, and in particular to medical auxiliary equipment, especially a hemodialysis catheter fixation dressing. Background Technology

[0002] Hemodialysis refers to blood dialysis. Internal jugular vein catheterization is a common site for hemodialysis catheter insertion. Doctors insert a catheter into the patient's internal jugular vein. This procedure is relatively simple and the catheter can be maintained for a relatively long time after insertion.

[0003] In clinical practice, the conventional method for securing hemodialysis catheters usually involves covering them with sterile gauze and then securing them with several strips of adhesive tape. Alternatively, Mepore self-adhesive surgical dressings can be applied to the implantation site for protection. However, these methods have the following drawbacks:

[0004] 1. The catheter tip is capped with heparin, which is heavy and easily pulled by gravity. During normal activities, the exposed catheter is also easily pulled, which can lead to suture dislodgement, bleeding at the puncture site, catheter displacement and dysfunction, infection, accidental extubation and other events.

[0005] 2. When the catheter is exposed to the outside environment for a long time, the end of the catheter is easily contaminated, increasing the chance of infection.

[0006] 3. Patient sweating, neck twisting, washing hair and face, and clothing friction can easily cause the tape to loosen, failing to achieve an effective fixation effect. In addition, the sticky substance is difficult to clean from the catheter, and excessive use of tape can cause skin allergies, leading to redness or damage to the patient's skin. Summary of the Invention

[0007] The purpose of this utility model is to provide a hemodialysis catheter fixation dressing, which aims to solve the technical problems of catheter self-weight pulling, easy contamination and tape loosening in the prior art.

[0008] A hemodialysis catheter fixation dressing includes a dressing body, a dressing material on the back of the dressing body, and a fixing device on the front of the dressing body. The fixing device includes a first storage bag, a second storage bag, a first fixing plate, a second fixing plate, a first binding strap, and a second binding strap. The first storage bag and the second storage bag are arranged vertically opposite each other, with the first storage bag on the lower side and the second storage bag on the upper side. The first and second storage bags are respectively fixed to the dressing body, and the openings of the first and second storage bags are opposite each other. The center of the first storage bag is aligned with the center of the second storage bag. The center line of the bag is the axis of symmetry. The first fixing piece and the second fixing piece are symmetrically arranged on the left and right sides, with the first fixing piece on the left and the second fixing piece on the right. The right side of the first fixing piece is fixed to the dressing body, and the left side of the first fixing piece is connected to one end of the first strap. The left side of the second fixing piece is fixed to the dressing body, and the right side of the second fixing piece is connected to one end of the second strap. The second fixing piece is also provided with an insertion hole, through which the other end of the first strap passes and is detachably connected to the other end of the second strap.

[0009] Furthermore, the first storage bag and the second storage bag each contain two or more small bags.

[0010] Furthermore, the fixing device is located on the left or right side of the front of the dressing body.

[0011] Furthermore, the first strap has a tab on its body, and after the first strap passes through the insertion hole, the tab engages with the insertion hole.

[0012] Furthermore, the other end of the first strap is detachably connected to the other end of the second strap via Velcro.

[0013] Compared with existing technologies, the advantages of this invention are positive and obvious:

[0014] 1. The first and second storage bags of this utility model can store the end of the insertion tube, lift the insertion tube, avoid the pulling caused by the weight of the insertion tube, and also avoid the patient accidentally pulling the insertion tube during movement.

[0015] 2. The present invention uses a first storage bag, a second storage bag, a first fixing piece, and a second fixing piece to wrap the tube, thereby preventing the tube from being exposed to the outside world for a long time and being contaminated.

[0016] 3. The first and second straps of this utility model are connected around the back of the patient's neck by interlacing with each other, avoiding the use of adhesive for fixation, avoiding skin allergies and injuries to the patient, and providing a more secure fixation. Attached Figure Description

[0017] Figure 1 A front view of an embodiment of this utility model.

[0018] Figure 2 A schematic diagram of the rear structure of an embodiment of this utility model.

[0019] Figure 3 A schematic diagram of the connection between the hemodialysis catheter and the first storage bag in an embodiment of this utility model.

[0020] Figure 4 A schematic diagram of the fixation of the hemodialysis catheter in an embodiment of this utility model.

[0021] Figure 5 A schematic diagram of the connection between the first and second straps in an embodiment of this utility model.

[0022] In the figure: 1 dressing body; 101 dressing; 2 fixation device; 3 first bandage; 301 insert; 4 second bandage; 5 first fixation piece; 6 second fixation piece; 601 insertion hole; 7 first storage bag; 8 second storage bag; 9 hemodialysis catheter; 901 arterial catheter; 902 venous catheter. Detailed Implementation

[0023] The following embodiments will further illustrate the present invention, but are not intended to limit the present invention.

[0024] like Figures 1 to 5 As shown, this embodiment provides a hemodialysis catheter fixation dressing, including a dressing body 1, with a dressing 101 on the back of the dressing body 1, similar to the commonly used Mepore self-adhesive surgical dressing.

[0025] A fixing device 2 is installed on the front of the dressing body 1. The fixing device 2 consists of a first storage bag 7, a second storage bag 8, a first fixing piece 5, a second fixing piece 6, a first binding strap 3, and a second binding strap 4. The fixing device 2 is located on the left side of the front of the dressing body 1, avoiding the center of the dressing body 1, so as to facilitate observation of whether there is blood or body fluid seepage at the center of the dressing body 1.

[0026] The first storage bag 7 and the second storage bag 8 are arranged vertically opposite each other, with the first storage bag 7 located on the lower side and the second storage bag 8 located on the upper side. Both are used to place the heparin cap at the end of the hemodialysis catheter 9. The first storage bag 7 and the second storage bag 8 are respectively fixed to the dressing body 1. The openings of the first storage bag 7 and the second storage bag 8 are opposite each other. When placing the hemodialysis catheter 9, one of the first storage bag 7 and the second storage bag 8 is selected for placement according to the puncture position. It can be used regardless of the orientation, avoiding the damage to the sterility of the dressing and the reduction of the adhesiveness of the dressing after reapplying the dressing due to the wrong insertion direction.

[0027] The first storage bag 7 and the second storage bag 8 each contain two cylindrical small bags. The common hemodialysis catheter 9 usually includes an arterial tube 901 and a venous tube 902. The arterial tube 901 and the venous tube 902 are respectively placed in the two cylindrical small bags of the first storage bag 7 or the second storage bag 8. The catheter is lifted to avoid the pulling caused by its own weight and also avoid accidental pulling of the catheter when the patient moves.

[0028] Taking the line connecting the centers of the first storage bag 7 and the second storage bag 8 as the axis of symmetry, the first fixing piece 5 and the second fixing piece 6 are symmetrically arranged left and right. The first fixing piece 5 is on the left side, and the second fixing piece 6 is on the right side. The right side of the first fixing piece 5 is fixedly connected to the dressing body 1, and the left side of the first fixing piece 5 is connected to one end of the first strap 3; the left side of the second fixing piece 6 is fixedly connected to the dressing body 1, and the right side of the second fixing piece 6 is connected to one end of the second strap 4.

[0029] A long strip-shaped insertion hole 601 is also opened at a position near the left side of the second fixing piece 6. During use, the first fixing piece 5 is flipped to the right and covered above the hemodialysis catheter 9, and the first strap 3 passes through the insertion hole 601. The second fixing piece 6 is flipped to the left and covered above the first fixing piece 5, so that the first fixing piece 5 and the second fixing piece 6 are交错 (interleaved) with each other to wrap the tube body of the hemodialysis catheter 9, and then the hemodialysis catheter 9 is fixed on the front of the dressing body 1.

[0030] After the other end of the first strap 3 passes through the insertion hole 601, it is detachably connected to the other end of the second strap 4 through a magic tape; to save costs, in other embodiments, they can also be connected to each other by tying a knot, avoiding the use of adhesive fixation, avoiding skin allergies and injuries to the patient, and at the same time the fixation is relatively firm.

[0031] An insertion piece 301 is provided on the strap body of the first strap 3. In this embodiment, the insertion piece 301 is a "匚"-shaped engraving cut out from the strap body of the first strap 3. After the three sides of the "匚" shape are dug out, the翘起的带身 (翘起来的带状部分) is the insertion piece 301. After the first strap 3 and the insertion piece 301 pass through the insertion hole 601, the insertion piece 301翘起与插孔601卡接 (翘起来 and engages with the insertion hole 601), so as to achieve the limiting effect of the insertion hole 601 on the first strap 3 and prevent the first strap 3 from being pulled out of the insertion hole 601.

[0032] The usage method of this embodiment:

[0033] 1. Apply the dressing body 1 on the implantation site of the hemodialysis catheter 9, unfold the first fixing piece 5 to the left, and unfold the second fixing piece 6 to the right.

[0034] 2. After bending the arterial tube 901 and the venous tube 902 of the hemodialysis catheter 9, the heparin caps at the ends of the arterial tube 901 and the venous tube 902 are respectively inserted into the two small bags of the first storage bag 7 or the second storage bag 8 to achieve storage.

[0035] 3. Flip the first fixing piece 5 to the right and cover it above the hemodialysis catheter 9. The first strap 3 passes through the insertion hole 601, and the insert 301 is engaged with the insertion hole 601.

[0036] 4. Flip the second fixing piece 6 to the left and cover it on top of the first fixing piece 5.

[0037] 5. After the first strap 3 and the second strap 4 are wrapped around the patient's neck, they are connected to each other by Velcro. Adjust the tightness of the straps to complete the fixation.

[0038] Although the present invention 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; and these 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 the present invention.

Claims

1. A hemodialysis catheter fixation dressing, comprising a dressing body (1), wherein a dressing (101) is disposed on the back side of the dressing body (1), characterized in that: The front of the dressing body (1) is provided with a fixing device (2), which includes a first storage bag (7), a second storage bag (8), a first fixing piece (5), a second fixing piece (6), a first strap (3), and a second strap (4). The first storage bag (7) and the second storage bag (8) are arranged opposite each other, with the first storage bag (7) on the lower side and the second storage bag (8) on the upper side. The first storage bag (7) and the second storage bag (8) are respectively fixed to the patch body (1). With the line connecting the center of the first storage bag (7) and the center of the second storage bag (8) as the axis of symmetry, the first fixing piece (5) and the second fixing piece (6) are symmetrically arranged on the left and right sides, with the first fixing piece (5) on the left side and the second fixing piece (6) on the right side. The right side of the first fixing piece (5) is fixed to the patch body (1), and the left side of the first fixing piece (5) is connected to one end of the first strap (3). The left side of the second fixing piece (6) is fixed to the patch body (1), and the right side of the second fixing piece (6) is connected to one end of the second strap (4). The second fixing piece (6) is also provided with a socket (601). After the other end of the first strap (3) passes through the socket (601), it is detachably connected to the other end of the second strap (4).

2. The hemodialysis catheter fixation dressing according to claim 1, characterized in that: The first storage bag (7) and the second storage bag (8) each contain two or more small bags.

3. The hemodialysis catheter fixation dressing according to claim 1, characterized in that: The fixing device (2) is located on the left or right side of the front of the dressing body (1).

4. The hemodialysis catheter fixation dressing according to claim 1, characterized in that: The first strap (3) has a tab (301) on its body. After the first strap (3) passes through the insertion hole (601), the tab (301) engages with the insertion hole (601).

5. The hemodialysis catheter fixation dressing according to claim 1, characterized in that: The other end of the first strap (3) is detachably connected to the other end of the second strap (4) via Velcro.