Internal fistula protection cover with adjustable width

Abstract

The utility model discloses a width-adjustable internal fistula protective cover, which relates to the technical field of medical instruments and is characterized in that U-shaped grooves are formed in the front side and the rear side of the protective cover, the protective cover is formed by combining a left side cover and a right side cover, a plurality of first through holes are formed in the upper surface of the left side cover, and a first inner cavity is formed in the inner side of the top of the left side cover; a plurality of second through holes are formed in the upper surface of the right side cover, a second inner cavity is formed in the inner side of the top of the right side cover, and a second limiting groove is formed in the bottom of the second inner cavity; the left side cover and the right side cover are pulled open towards the two sides, the extension cover slides out of the first inner cavity and the second inner cavity, the more the extension cover slides out, the larger the width of the protection cover is, the width of the protection cover can be adjusted, the width of the protection cover can be adjusted according to the thickness of the arm of a patient, and practicability can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adjustable-width fistula protective cover. Background Technology

[0002] According to the quality control requirements of hemodialysis, the proportion of autologous or transplanted arteriovenous fistulas used as vascular access should be much greater than that of semi-permanent or temporary catheters. As the number of hemodialysis patients increases, the number of arteriovenous fistula patients also increases significantly. During the 3 to 4 hours of dialysis, there are many cases of problems occurring because the arteriovenous fistula was not properly protected. Therefore, protecting the arteriovenous fistula has become particularly important.

[0003] Chinese patent application CN201621020297.9 describes a protective cover for arteriovenous fistulas in hemodialysis patients. This cover features an arched cylindrical design to prevent bleeding or increased venous pressure caused by clothing, bedding, etc. The hinges on both sides ensure stability during use, and when not in use, the hinges can be connected for easy movement and storage. However, this protective cover has shortcomings. For example, its width cannot be adjusted according to the patient's arm size. For patients with larger arms, a wider cover is required, reducing its practicality. Therefore, we propose an adjustable-width arteriovenous fistula protective cover to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing an adjustable-width fistula protective cover.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable-width fistula protective cover, comprising: a protective cover, a U-shaped groove, a left side cover, a first through hole, a first inner cavity, a first limiting groove, a first soft silicone pad, a right side cover, a second through hole, a second inner cavity, a second limiting groove, a second soft silicone pad, an extension cover, a first limiting block, and a second limiting block. The protective cover has U-shaped grooves on both its front and rear sides. The protective cover is composed of a left side cover and a right side cover. The upper surface of the left side cover has several first through holes, and the inner side of the top of the left side cover has a first inner cavity. The bottom of the first inner cavity has a first... The first limiting groove has a first soft silicone pad at its bottom. The upper surface of the right side cover has several second through holes. The top inner side of the right side cover has a second inner cavity. The bottom of the second inner cavity has a second limiting groove. The bottom of the second limiting groove has a second soft silicone pad. An extension cover is provided between the first inner cavity and the second inner cavity. The bottom left side of the extension cover has a first limiting block, which is movably installed inside the first limiting groove. The bottom right side of the extension cover has a second limiting block, which is movably installed inside the second limiting groove.

[0006] Preferably, the two U-shaped grooves are arranged symmetrically, and the edges of the U-shaped grooves are arranged in an arc shape.

[0007] Preferably, the left side cover and the right side cover are arranged symmetrically, and the extended covers are slidably connected to the first inner cavity and the second inner cavity.

[0008] Preferably, the first limiting block and the interior of the first limiting groove, and the second limiting block and the interior of the second limiting groove are slidably connected.

[0009] Preferably, the bottom of the first limiting block is in close contact with the surface of the first soft silicone pad, and the bottom of the second limiting block is in close contact with the surface of the second soft silicone pad.

[0010] Preferably, both the first through hole and the second through hole are arranged in an array structure.

[0011] Preferably, the protective cover is made entirely of transparent plastic.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] (1) The protective cover can be placed on the patient's arm through the two U-shaped grooves, thereby protecting the patient's fistula and preventing injury to the patient; and the edge of the U-shaped groove is set with an arc structure to prevent the arm from being injured when it touches the edge of the U-shaped groove.

[0014] (2) By pulling the left and right covers apart to the sides, the extension cover slides out into the first and second inner cavities. The more the extension cover slides out, the wider the protective cover becomes, thus adjusting the width of the protective cover. This allows the width of the protective cover to be adjusted according to the thickness of the patient's arm, improving its practicality.

[0015] (3) When the extension cover slides inside the first inner cavity and the second inner cavity, the first limiting block slides inside the first limiting groove; the second limiting block slides inside the second limiting groove, thereby limiting the maximum movement position of the extension cover through the first limiting block and the first limiting groove; the second limiting block and the second limiting groove; and at the same time, improving the movement stability of the extension cover.

[0016] (4) When the first limiting block slides inside the first limiting groove, the bottom of the first limiting block can move close to the surface of the first soft silicone pad. Through the elastic force of the first soft silicone pad itself, the first soft silicone pad can generate an upward elastic force to stick close to the bottom of the first limiting block, thereby fixing the first limiting block in real time and preventing the first limiting block from moving. When the second limiting block slides inside the second limiting groove, the bottom of the second limiting block moves close to the surface of the second soft silicone pad. Through the elastic force of the second soft silicone pad itself, the second soft silicone pad can generate an upward elastic force to stick close to the bottom of the second limiting block, thereby fixing the second limiting block in real time and preventing the second limiting block from moving. Thus, by fixing the first limiting block and the second limiting block in real time, the position of the extension cover can be fixed in real time simultaneously, preventing the extension cover from moving during use. Attached Figure Description

[0017] Figure 1 This is a front view of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the overall extended cover unfolded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall front sectional view of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall right-side cross-sectional structure of this utility model;

[0021] Figure 5 It is the whole of this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Protective cover; 2. U-shaped groove; 3. Left side cover; 4. First through hole; 5. First inner cavity; 6. First limiting groove; 601. First positioning block; 7. Right side cover; 8. Second through hole; 9. Second inner cavity; 10. Second limiting groove; 1001. Second positioning block; 11. Extension cover; 12. First limiting block; 13. Second limiting block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] like Figure 1-5 As shown, an adjustable-width fistula protective cover includes: a protective cover 1, a U-shaped groove 2, a left side cover 3, a first through hole 4, a first inner cavity 5, a first limiting groove 6, a first soft silicone pad 601, a right side cover 7, a second through hole 8, a second inner cavity 9, a second limiting groove 10, a second soft silicone pad 1001, an extension cover 11, a first limiting block 12, and a second limiting block 13. The protective cover 1 has U-shaped grooves 2 on both its front and rear sides. The protective cover 1 is composed of the left side cover 3 and the right side cover 7. The upper surface of the left side cover 3 has several first through holes 4, the inner side of the top of the left side cover 3 has a first inner cavity 5, and the bottom of the first inner cavity 5 has a first limiting groove 6. A first soft silicone pad 601 is provided at the bottom of the first limiting groove 6. Several second through holes 8 are provided on the upper surface of the right cover 7. A second inner cavity 9 is provided on the inner side of the top of the right cover 7. A second limiting groove 10 is provided at the bottom of the second inner cavity 9. A second soft silicone pad 1001 is provided at the bottom of the second limiting groove 10. An extension cover 11 is provided between the first inner cavity 5 and the second inner cavity 9. A first limiting block 12 is provided at the bottom left side of the extension cover 11 and is movably installed inside the first limiting groove 6. A second limiting block 13 is provided at the bottom right side of the extension cover 11 and is movably installed inside the second limiting groove 10.

[0025] In this embodiment, the two U-shaped grooves 2 are arranged in a symmetrical structure, and the edges of the U-shaped grooves 2 are arranged in an arc shape.

[0026] In practical use, the protective cover 1 can be placed on the patient's arm through the two U-shaped grooves 2, thereby protecting the patient's fistula and preventing injury to the patient; and the U-shaped groove 2 has an arc-shaped edge structure, which can prevent the arm from being injured when it touches the edge of the U-shaped groove.

[0027] In this embodiment, the left cover 3 and the right cover 7 are arranged in a symmetrical structure, and the extension cover 11 is slidably connected to the first inner cavity 5 and the second inner cavity 9.

[0028] In practical use, by pulling the left cover 3 and the right cover 7 apart to the sides, the extension cover 11 slides out into the first inner cavity 5 and the second inner cavity 9. The more the extension cover 11 slides out, the wider the protective cover 1 becomes, thereby adjusting the width of the protective cover 1. This allows the width of the protective cover 1 to be adjusted according to the thickness of the patient's arm, thus improving its practicality.

[0029] In this embodiment, the first limiting block 12 and the interior of the first limiting groove 6, and the second limiting block 13 and the interior of the second limiting groove 10 are all slidably connected.

[0030] In practical use, when the extension cover 1 slides inside the first inner cavity 5 and the second inner cavity 9, the first limiting block 12 slides inside the first limiting groove 6; the second limiting block 13 slides inside the second limiting groove 10. Thus, the maximum movement position of the extension cover 1 can be limited by the first limiting block 12 and the first limiting groove 6; the second limiting block 13 and the second limiting groove 10; and the movement stability of the extension cover 1 can also be improved.

[0031] In this embodiment, the bottom of the first limiting block 12 is in close contact with the surface of the first soft silicone pad 601, and the bottom of the second limiting block 13 is in close contact with the surface of the second soft silicone pad 1001.

[0032] In practical use, when the first limiting block 12 slides inside the first limiting groove 6, the bottom of the first limiting block 12 can move in close contact with the surface of the first soft silicone pad 601. Furthermore, due to the elasticity of the first soft silicone pad 601 itself, the first soft silicone pad 601 generates an upward elastic force that keeps it in close contact with the bottom of the first limiting block 12, thereby fixing the first limiting block 12 in real time and preventing it from moving. When the second limiting block 13 slides inside the second limiting groove 10, the bottom of the second limiting block 13... The part moves in close contact with the surface of the second soft silicone pad 1001, and through the elastic force of the second soft silicone pad 1001 itself, the second soft silicone pad 1001 can generate an upward elastic force to stick tightly to the bottom of the second limiting block 13, thereby fixing the second limiting block 13 in real time and preventing the second limiting block 13 from moving; thus, by fixing the first limiting block 12 and the second limiting block 13 in real time, the position of the extension cover 11 can be fixed in real time simultaneously, preventing the extension cover 11 from moving during use.

[0033] In this embodiment, both the first through hole 4 and the second through hole 8 are arranged in an array structure.

[0034] In practical use, the air permeability of the protective cover 1 can be improved through the first through hole 4 and the second through hole 8.

[0035] In this embodiment, the protective cover 1 is made entirely of transparent plastic.

[0036] In practical use, the protective cover 1 is made entirely of transparent plastic, which facilitates real-time observation of the patient's fistula.

[0037] The working principle of the adjustable-width fistula protective cover mentioned in this utility model is as follows:

[0038] The protective cover 1 can be placed on the patient's arm through the two U-shaped grooves 2, thereby protecting the patient's arteriovenous fistula and preventing injury to the patient; and the U-shaped groove 2 has an arc-shaped edge structure, which can prevent the arm from being injured when it touches the edge of the U-shaped groove.

[0039] Meanwhile, by pulling the left cover 3 and the right cover 7 apart to the sides, the extension cover 11 slides out into the first inner cavity 5 and the second inner cavity 9. The more the extension cover 11 slides out, the wider the protective cover 1 becomes, thereby adjusting the width of the protective cover 1. This allows the width of the protective cover 1 to be adjusted according to the thickness of the patient's arm, thus improving its practicality.

[0040] Meanwhile, when the extension cover 1 slides inside the first inner cavity 5 and the second inner cavity 9, the first limiting block 12 slides inside the first limiting groove 6; the second limiting block 13 slides inside the second limiting groove 10, thereby limiting the maximum movement position of the extension cover 1 through the first limiting block 12 and the first limiting groove 6; the second limiting block 13 and the second limiting groove 10; and also improving the movement stability of the extension cover 1.

[0041] Simultaneously, when the first limiting block 12 slides inside the first limiting groove 6, the bottom of the first limiting block 12 can move in close contact with the surface of the first soft silicone pad 601. Furthermore, due to the elasticity of the first soft silicone pad 601 itself, the first soft silicone pad 601 generates an upward elastic force that tightly adheres to the bottom of the first limiting block 12, thereby fixing the first limiting block 12 in real time and preventing it from moving. When the second limiting block 13 slides inside the second limiting groove 10, the bottom of the second limiting block 13... The second soft silicone pad 1001 is moved along its surface, and through its own elasticity, it generates an upward force to adhere tightly to the bottom of the second limiting block 13, thereby fixing the second limiting block 13 in real time and preventing it from moving. Thus, by fixing the first limiting block 12 and the second limiting block 13 in real time, the position of the extension cover 11 can be simultaneously fixed in real time, preventing the extension cover 11 from moving during use.

[0042] Meanwhile, the air permeability of the protective cover 1 can be improved through the first through hole 4 and the second through hole 8.

[0043] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. An adjustable-width arteriovenous fistula protective cover, comprising: The protective cover (1), U-shaped groove (2), left side cover (3), first through hole (4), first inner cavity (5), first limiting groove (6), first soft silicone pad (601), right side cover (7), second through hole (8), second inner cavity (9), second limiting groove (10), second soft silicone pad (1001), extension cover (11), first limiting block (12), second limiting block (13) are characterized in that: the protective cover (1) is provided with U-shaped groove (2) on both the front and rear sides, the protective cover (1) is composed of a left side cover (3) and a right side cover (7), the upper surface of the left side cover (3) is provided with a plurality of first through holes (4), the top inner side of the left side cover (3) is provided with a first inner cavity (5), the bottom of the first inner cavity (5) is provided with a first limiting groove (6), the first limiting groove (6) A first soft silicone pad (601) is provided at the bottom of the inside. A number of second through holes (8) are provided on the upper surface of the right side cover (7). A second inner cavity (9) is provided on the inner side of the top of the right side cover (7). A second limiting groove (10) is provided at the bottom of the second inner cavity (9). A second soft silicone pad (1001) is provided at the bottom of the second limiting groove (10). An extension cover (11) is provided between the first inner cavity (5) and the second inner cavity (9). A first limiting block (12) is provided at the bottom left side of the extension cover (11). The first limiting block (12) is movably installed inside the first limiting groove (6). A second limiting block (13) is provided at the bottom right side of the extension cover (11). The second limiting block (13) is movably installed inside the second limiting groove (10).

2. The adjustable-width fistula protective cover according to claim 1, characterized in that: The two U-shaped grooves (2) are arranged in a symmetrical structure, and the edges of the U-shaped grooves (2) are arranged in an arc shape.

3. The adjustable-width fistula protective cover according to claim 1, characterized in that: The left cover (3) and the right cover (7) are arranged in a symmetrical structure, and the extension cover (11) is slidably connected to the first inner cavity (5) and the second inner cavity (9).

4. The adjustable-width fistula protective cover according to claim 1, characterized in that: The first limiting block (12) and the first limiting groove (6) are slidably connected, as are the second limiting block (13) and the second limiting groove (10).

5. The adjustable-width fistula protective cover according to claim 1, characterized in that: The bottom of the first limiting block (12) is in close contact with the surface of the first soft silicone pad (601), and the bottom of the second limiting block (13) is in close contact with the surface of the second soft silicone pad (1001).

6. The adjustable-width fistula protective cover according to claim 1, characterized in that: Both the first through hole (4) and the second through hole (8) are arranged in an array structure.

7. The adjustable-width fistula protective cover according to claim 1, characterized in that: The protective cover (1) is made entirely of transparent plastic.

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