Aseptic nursing bag for hemodialysis catheter

Abstract

The utility model discloses a hemodialysis catheter aseptic nursing bag, including aseptic bag body, clamping block and adhesive tape, the top of aseptic bag body is equipped with the opening, and the both sides of opening are equipped with the first sealing strip and second sealing strip of mutual seal connection respectively, and the clamping portion of position matching is set up on the first sealing strip and second sealing strip correspondingly, clamping block is used for detachable installation on hemodialysis catheter, and the clamping portion of first sealing strip and second sealing strip cooperates and clamps on clamping block, adhesive tape is located aseptic bag body outer surface, and the both ends of adhesive tape extend and form the sticking part, and the sticking part is used for fixing aseptic bag body on human skin surface, the utility model provides a hemodialysis catheter aseptic nursing bag, provides closed aseptic environment for hemodialysis catheter end through aseptic bag body, and simplifies the nursing procedure, reduces the operation length, improves the comfort degree of hemodialysis catheter fixed on patient's skin.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a sterile nursing bag for hemodialysis catheters. Background Technology

[0002] In clinical hemodialysis treatment, the indwelling hemodialysis catheter serves as an important channel connecting the patient's blood vessels to the dialysis equipment, and its exposed portion must be kept sterile for a long time to prevent infection.

[0003] In the existing technology, when the hemodialysis catheter is not used for drug infusion, the exposed section of the catheter is generally wrapped with multiple layers of sterile cotton gauze, and the wrapping layer is attached to the skin with adhesive tape to fix the hemodialysis catheter. At the same time, dressings are used to cover the puncture site area.

[0004] This nursing procedure requires standardized dressing changes performed by medical staff: first, the original wrapping layer and dressing are removed, the catheter is re-wrapped with gauze, and its position is secured with adhesive tape; then, the skin around the puncture site is disinfected and the dressing is changed; finally, the puncture site is re-covered with a dressing. However, the process of manually wrapping the gauze is time-consuming, and controlling the tightness of the wrapping depends on the operator's experience; in addition, the bulky structure formed by the gauze wrapping increases the overall volume of the catheter, and after being secured to the skin with adhesive tape, the entire piece of gauze will rub against the skin, causing significant discomfort to the patient.

[0005] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a sterile nursing bag for hemodialysis catheters, which aims to solve the technical problems of long nursing time and obvious discomfort to patients caused by wrapping hemodialysis catheters with gauze in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A sterile care bag for hemodialysis catheters, comprising:

[0009] The sterile bag body has an opening at the top, and a first sealing strip and a second sealing strip that can be sealed to each other on both sides of the opening. The first sealing strip and the second sealing strip are respectively provided with correspondingly matched snap-fit ​​parts.

[0010] A locking block is used for detachable installation on a hemodialysis catheter, and the locking parts of the first sealing strip and the second sealing strip are engaged with the locking block;

[0011] Adhesive tape is applied to the outer surface of the sterile bag body, with both ends of the tape extending to form adhesive portions, which are used to fix the sterile bag body to the surface of human skin.

[0012] Furthermore, the locking block includes two fasteners that are connected by a snap-fit ​​mechanism. One side of each fastener has an arc-shaped recess that matches the outer diameter of the hemodialysis catheter. The top and bottom of the fasteners are respectively provided with flanges, and the outer diameter of the flanges is larger than the clamping diameter of the locking part.

[0013] Furthermore, each of the fasteners has an anti-slip pad on its inner side.

[0014] Furthermore, the snap-fit ​​portion includes a silicone strip disposed along the length of the first sealing strip, the silicone strip being used to adhere to the outer wall of the snap-fit ​​block.

[0015] Furthermore, the snap-fit ​​portion includes a retaining strip, the inner wall of which matches the outer wall of the snap-fit ​​block.

[0016] Furthermore, there are two first sealing strips, and the snap-fit ​​portion is located between the two first sealing strips.

[0017] Furthermore, the first sealing strip is a single strip, the snap-fit ​​part is located at one end of the first sealing strip, a female buckle is provided on the side of the sterile bag body near the other end of the first sealing strip, a male buckle is provided in the middle of the sterile bag body, and the male buckle is on the same side as the snap-fit ​​part, and the female buckle is snapped on by the male buckle.

[0018] Furthermore, when the female buckle and the male buckle are fastened together, an inclined fold is formed on the sterile bag body, and the inclined fold extends to the snap-fit ​​part.

[0019] Furthermore, the bottom of the sterile bag body is provided with an expansion section, which includes two connected flexible connecting pieces, the edges of which are sealed to the two inner surfaces of the sterile bag body.

[0020] Furthermore, it also includes a gauze cover, which is placed around the periphery of the card block and held between the card block and the card engagement part.

[0021] Beneficial effects:

[0022] This invention provides a sterile care bag for hemodialysis catheters. The sterile bag body provides a sterile environment for the blood catheter. During care, the blood catheter is inserted into the sterile bag body, and the first and second sealing strips are pressed together, causing the locking part to be installed on the blood catheter's locking block, thus limiting the longitudinal displacement of the sterile bag body. Adhesive tape is then used to directly fix the sterile bag body to the patient's skin, further securing its position. For replacement, simply separate the first and second sealing strips and remove the sterile bag body. The entire care process is simple, reduces operation time, and does not increase the overall volume of the hemodialysis catheter after wrapping, improving the comfort of the hemodialysis catheter when fixed to the patient's skin. Attached Figure Description

[0023] Figure 1The main view of the sterile nursing bag for hemodialysis catheters provided by this utility model Figure 1 ;

[0024] Figure 2 Reference for the use of the sterile nursing bag for hemodialysis catheters provided by this utility model Figure 1 ;

[0025] Figure 3 The main view of the sterile nursing bag for hemodialysis catheters provided by this utility model Figure 2 ;

[0026] Figure 4 Reference for the use of the sterile nursing bag for hemodialysis catheters provided by this utility model Figure 2 ;

[0027] Figure 5 The main view of the sterile nursing bag for hemodialysis catheters provided by this utility model Figure 3 ;

[0028] Figure 6 A side sectional view of the sterile nursing bag for hemodialysis catheters provided by this utility model;

[0029] Figure 7 Top view of the sterile bag body in the sterile nursing bag for hemodialysis catheters provided by this utility model. Figure 1 ;

[0030] Figure 8 Top view of the sterile bag body in the sterile nursing bag for hemodialysis catheters provided by this utility model. Figure 2 ;

[0031] Figure 9 This is a structural diagram of the card block in the sterile nursing bag for hemodialysis catheters provided by this utility model;

[0032] Figure 10 An exploded view of the block in the sterile nursing bag for hemodialysis catheters provided by this utility model.

[0033] Reference numerals: 1. Sterile bag body; 11. Opening; 12. Expansion section; 121. Flexible connecting piece; 13. Expansion cavity; 2. First sealing strip; 3. Second sealing strip; 4. Locking block; 41. Fastener; 42. Recess; 43. Flange; 44. Anti-slip piece; 44. Anti-slip protrusion; 441. Short post; 45. Positioning hole; 46. Adhesive tape; 51. Adhesive part; 6. Snap-fit ​​part; 61. Silicone strip; 62. Edge band; 71. Female buckle; 72. Male buckle; 73. Inclined folded edge; 8. Gauze sleeve. Detailed Implementation

[0034] This utility model provides a sterile nursing bag for hemodialysis catheters. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0036] Please see Figures 1 to 10 As shown, this utility model provides a sterile nursing bag for hemodialysis catheters. This sterile nursing bag is a single-use product and needs to be discarded after one use to ensure that the blood catheter remains in a sterile environment for a long time. Specifically, it includes a sterile bag body 1, a locking block 4, and adhesive tape 5. The top of the sterile bag body 1 has an opening 11, and the two sides of the opening 11 are respectively provided with a first sealing strip 2 and a second sealing strip 3 that can be sealed to each other. The first sealing strip 2 and the second sealing strip 3 are respectively provided with correspondingly matched locking parts 6. The locking block 4 is used to detachably install on the hemodialysis catheter, and the locking parts 6 of the first sealing strip 2 and the second sealing strip 3 are engaged with the locking block 4. The adhesive tape 5 is provided on the outer surface of the sterile bag body 1, and the two ends of the adhesive tape 5 extend to form adhesive parts 51, which are used to fix the sterile bag body 1 to the surface of human skin. Specifically, the surface of the adhesive part 51 is covered with a release paper. When in use, the release paper is torn off, and the adhesive part 51 is used to fix the sterile bag body 1 to the surface of human skin.

[0037] During nursing care, first install the locking block 4 onto the hemodialysis catheter, then open the opening 11 and place the end of the hemodialysis catheter into the sterile bag body 1. The locking part 6 is then installed on the locking block 4. Press the first sealing strip 2 and the second sealing strip 3 to complete the seal, closing the opening 11 of the sterile bag body 1. Finally, peel off the release paper from the adhesive part 51 and attach it to the skin to secure the hemodialysis catheter to the body. When replacing the sterile bag body 1, first separate the first sealing strip 2 and the second sealing strip 3 to open the opening 11, then peel the adhesive tape 5 off the skin to remove the old sterile bag body 1 from the hemodialysis catheter. The operation is simple. The sterile bag body 1 provides a closed, sterile environment for the end of the hemodialysis catheter, simplifying nursing procedures, reducing operation time, and without increasing the overall volume of the wrapped hemodialysis catheter, thus avoiding patient discomfort.

[0038] In the above description, the first sealing strip 2 and the second sealing strip 3 employ a common interlocking structure found in existing technologies. The specific sealing structure and working principle will not be elaborated further. A simple seal is achieved by pressing, and separation is possible with slight force. Since the sterile bag body 1 is a single-use item, the sealing structure between the first sealing strip 2 and the second sealing strip 3 does not require high durability; damage to the concave and convex portions can occur after a single use. Therefore, most existing sealing structures are applicable to the first sealing strip 2 and the second sealing strip 3, and the sealing operation is simple and separation is easy, meeting both basic sealing requirements and ease of assembly and disassembly.

[0039] In a preferred embodiment, see [reference] Figure 9 , 10 The locking block 4 includes two fasteners 41 that are connected by a snap-fit ​​mechanism. One side of each fastener 41 has an arc-shaped recess 42 that matches the outer diameter of the hemodialysis catheter. The top and bottom of each fastener 41 have flanges 43, the outer diameter of which is larger than the clamping diameter of the locking part 6. Specifically, one fastener 41 has short posts 45 on each side, and the other fastener 41 has positioning holes 46 on corresponding positions on both sides. The two fasteners 41 are locked together by inserting the short posts 45 into the positioning holes 46. The flanges 43 form an axial limiting structure for the locking part 6, effectively preventing longitudinal displacement of the hemodialysis catheter within the sterile bag body 1. Simultaneously, the recess 42 contacts the outer wall of the catheter, and the adhesive tape 5 fixes the position of the sterile bag body 1, ensuring the stability of the circumferential fixation of the hemodialysis catheter.

[0040] Further, see Figure 10Each of the fasteners 41 has an anti-slip plate 44 on its inner side. The fasteners 41 are injection molded from hard plastic, and the anti-slip plates 44 are made of silicone material. The surface of the anti-slip plates 44 is formed with an array of hemispherical anti-slip protrusions 441. Through the high coefficient of friction between the silicone material and the catheter surface, combined with the anti-slip protrusions 441, the static friction between the hemodialysis catheter and the fasteners 41 is significantly improved, thereby ensuring the installation stability of the locking block 4 on the hemodialysis catheter.

[0041] In one implementation, see [reference] Figure 7 The snap-fit ​​part 6 includes a silicone strip 61 arranged along the length of the first sealing strip 2. The silicone strip 61 is used to fit against the outer wall of the snap-fit ​​block 4. The silicone strip 61 is flexible and has the ability to deform under pressure. Under the sealing connection of the first sealing strip 2 and the second sealing strip 3, the silicone strip 61 can be forced to fit against the outer wall of the snap-fit ​​block 4. At this time, the diameter formed by the two silicone strips 61 is consistent with the outer diameter of the snap-fit ​​block 4. Therefore, under the axial limitation of the flange 43, the stability of the connection between the sterile bag body 1 and the snap-fit ​​block 4 is ensured.

[0042] In another implementation, see Figure 8 The locking part 6 includes a retaining strip 62, the inner wall of which matches the outer wall of the locking block 4. The retaining strip 62 is made of rigid plastic injection molding and is fixed to the inner surface of the sterile bag body 1 by ultrasonic welding. Similarly, the first sealing strip 2 and the second sealing strip 3 are also seamlessly connected to the sterile bag body 1 by the same welding process. When the first sealing strip 2 and the second sealing strip 3 are pressed to complete the seal, the two retaining strips 62 are fitted onto the outer wall of the locking block 4 by external force. The diameter formed by the two retaining strips 62 is consistent with the outer diameter of the locking block 4. Therefore, under the axial limitation of the flange 43, the stability of the connection between the sterile bag body 1 and the locking block 4 is ensured.

[0043] In the above-mentioned embodiments, the mounting position of the snap-fit ​​part 6 has the following two types:

[0044] First implementation method: See [link / reference] Figure 1 , 2 There are two first sealing strips 2, and the snap-fit ​​part 6 is located between the two first sealing strips 2, that is, the two first sealing strips 2 are symmetrically located on both sides of the snap-fit ​​part 6. With the above arrangement, the blood catheter is fixed at the center line position of the sterile bag body 1, so that the blood catheter is fixed in the center.

[0045] In the second implementation method, see Figure 3 , 4The first sealing strip 2 is a single piece, and the snap-fit ​​part 6 is located at one end of the first sealing strip 2. With this configuration, the blood catheter is fixed to the side of the sterile bag body 1. A female buckle 71 is provided on the side of the sterile bag body 1 near the other end of the first sealing strip 2, and a male buckle 72 is provided in the middle of the sterile bag body 1, with the male buckle 72 on the same side as the snap-fit ​​part 6. The female buckle 71 and male buckle 72 are fastened together. To facilitate the insertion of the blood catheter into the sterile bag body 1, the space inside the sterile bag body 1 is relatively large, resulting in a larger width. After the blood catheter is fixed, it is located on one side of the sterile bag body 1. The male buckle 72 and female buckle 71 are fastened together, causing the sterile bag body 1 to fold. The original wide sterile bag body 1 structure is folded, reducing its width and forcing the internal space to be compressed into a compact cavity. This significantly reduces the movement space of the blood catheter within the sterile bag body 1, further improving the stability of the blood catheter's position within the sterile bag body 1.

[0046] The above-mentioned fastening structure of male buckle 72 and female buckle 71 is existing technology, and its specific structure and working principle will not be described in detail.

[0047] Further, see Figure 3 , 4 When the female buckle 71 and male buckle 72 are fastened together, an inclined fold 73 is formed on the sterile bag body 1, extending to the locking part 6. Since the exposed section of the blood catheter has an inverted Y-shaped structure, the inclined fold 73 can reduce the internal space of the sterile bag body 1 from bottom to top. In addition, the inclined fold 73 extends to the locking part 6, which folds the first sealing strip 2 and the second sealing strip 3 in the pressed state, strengthening the sealing structure and forcing the locking part 6 to remain in contact with each other, thus effectively suppressing the possibility of the first sealing strip 2 and the second sealing strip 3 accidentally detaching, thereby constructing a stable fixing system.

[0048] In a preferred embodiment, see [reference] Figure 6 The sterile bag body 1 has an expansion section 12 at its bottom. The expansion section 12 includes two connected flexible connecting pieces 121. The edges of the two flexible connecting pieces 121 are sealed to the two inner surfaces of the sterile bag body 1 to form an inverted V-shaped folded structure. When the catheter tip is inserted, the two flexible connecting pieces 121 naturally unfold under the gravity of the catheter, so that the lower part of the sterile bag body 1 forms an inverted V-shaped expansion cavity 13. This allows the hemodialysis catheter tip to bend naturally, avoiding the risk of catheter bending. It is suitable for wrapping hemodialysis catheters of different lengths.

[0049] In a preferred embodiment, see [reference] Figure 5It also includes a gauze sleeve 8, which is fitted around the outer periphery of the locking block 4 and clamped between the locking block 4 and the locking part 6. During assembly, the gauze sleeve 8 is fitted around the outer periphery of the locking block 4, and then the first sealing strip 2 and the second sealing strip 3 are pressed together to press the locking part 6 tightly onto the gauze sleeve 8. By placing the gauze sleeve 8 between the locking block 4 and the locking part 6, the sealing between the sterile bag body 1 and the blood catheter is improved. At the same time, when there is bleeding from the puncture site, the gauze sleeve 8 can absorb the blood to prevent blood from seeping into the sterile bag body 1.

[0050] It should be noted that the upper part of the gauze cover 8 is larger than its lower part, so that the upper part of the gauze cover 8 can absorb more blood and will not penetrate to a certain extent into the lower part of the gauze cover 8 and thus into the interior of the sterile bag body 1.

[0051] In summary, during operation, this invention uses two fasteners 41 to connect and secure the locking block 4 to the upper part of the blood catheter. A gauze sleeve 8 is then placed around the locking block 4. The blood catheter is placed inside the sterile bag body 1, and the first sealing strip 2 and the second sealing strip 3 are pressed together to secure the two locking parts 6 onto the locking block 4. The axial restraint of the flange 43 prevents longitudinal movement of the sterile bag body 1. Finally, adhesive tape 5 is used to fix it to the skin, thus securing the sterile bag body 1. For replacement, the first sealing strip 2 and the second sealing strip 3 are simply separated, and the sterile bag body 1 is removed. The entire nursing process is convenient, reduces operation time, lowers the risk of blood catheter contamination, and reduces reliance on operator experience. Furthermore, using the sterile bag body 1 to wrap the hemodialysis catheter does not increase the overall volume of the wrapped catheter, avoiding patient discomfort.

[0052] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A sterile nursing bag for hemodialysis catheters, characterized in that, include: The sterile bag body (1) has an opening (11) at the top. A first sealing strip (2) and a second sealing strip (3) that can be sealed to each other are provided on both sides of the opening (11). The first sealing strip (2) and the second sealing strip (3) are respectively provided with a matching snap-fit ​​part (6). The locking block (4) is used to be detachably installed on the hemodialysis catheter, and the locking part (6) of the first sealing strip (2) and the second sealing strip (3) is engaged with the locking block (4); Adhesive tape (5) is provided on the outer surface of the sterile bag body (1). The two ends of the adhesive tape (5) extend to form adhesive portions (51), which are used to fix the sterile bag body (1) to the surface of human skin.

2. The sterile nursing bag for hemodialysis catheters according to claim 1, characterized in that, The locking block (4) includes two fasteners (41) that are fastened together. The two fasteners (41) have an arc-shaped recess (42) on one side that matches the outer diameter of the hemodialysis catheter. The top and bottom of the fasteners (41) are respectively provided with flanges (43). The outer diameter of the flanges (43) is larger than the clamping diameter of the locking part (6).

3. The sterile nursing bag for hemodialysis catheters according to claim 2, characterized in that, Each of the fasteners (41) has an anti-slip plate (44) on its inner side.

4. The sterile nursing bag for hemodialysis catheters according to claim 1, characterized in that, The snap-fit ​​part (6) includes a silicone strip (61) arranged along the length of the first sealing strip (2), and the silicone strip (61) is used to fit against the outer wall of the snap-fit ​​block (4).

5. The sterile nursing bag for hemodialysis catheters according to claim 1, characterized in that, The snap-fit ​​part (6) includes a retaining strip (62), the inner wall of which matches the outer wall of the snap-fit ​​block (4).

6. The sterile nursing bag for hemodialysis catheters according to claim 4 or 5, characterized in that, There are two first sealing strips (2), and the snap-fit ​​part (6) is located between the two first sealing strips (2).

7. The sterile nursing bag for hemodialysis catheters according to claim 4 or 5, characterized in that, The first sealing strip (2) is one piece, and the snap-fit ​​part (6) is located at one end of the first sealing strip (2). The sterile bag body (1) is provided with a female buckle (71) on the side near the other end of the first sealing strip (2). The sterile bag body (1) is provided with a male buckle (72) in the middle, and the male buckle (72) is on the same side as the snap-fit ​​part (6). The female buckle (71) and the male buckle (72) are fastened together.

8. The sterile nursing bag for hemodialysis catheters according to claim 7, characterized in that, When the female buckle (71) and the male buckle (72) are fastened together, an inclined fold (73) is formed on the sterile bag body (1), and the inclined fold (73) extends to the snap-fit ​​part (6).

9. The sterile nursing bag for hemodialysis catheters according to any one of claims 1-5, characterized in that, The bottom of the sterile bag body (1) is provided with an expansion section (12), which includes two connected flexible connecting pieces (121). The edges of the two flexible connecting pieces (121) are sealed to the two inner surfaces of the sterile bag body (1).

10. The sterile nursing bag for hemodialysis catheters according to claim 1, characterized in that, It also includes a gauze cover (8), which is fitted around the outer periphery of the card block (4) and held between the card block (4) and the card connector (6).

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