A kind of adhesive tape for fixing internal fistula needle

Abstract

The utility model discloses a kind of adhesive tapes of fixed internal fistula needle, including adhesive layer, still including partition layer, metal strip, outer protective layer;The adhesive layer, partition layer, metal strip, outer protective layer are sequentially bonded and connected from bottom to top;Two metal strips are set, two metal strips are collinear, and the distance between two metal strips, i.e. the length K of pipe wrapping area satisfies: πD / 2 The utility model can raise pipe by two metal strips, and the pipe can be accurately raised by the standard of pinching to skin below, so that the pipe is flush with internal fistula needle needle head, and the depth, direction of internal fistula needle is controlled.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adhesive tape for fixing an arteriovenous fistula needle. Background Technology

[0002] During hemodialysis, if the arteriovenous fistula protrudes above the skin of the limb, causing the skin surface to be out of level, then after the injection, it is necessary to raise the tail of the fistula needle to keep the needle tip and the tubing at the same level. The existing solution is to put gauze under the tubing behind the tail of the fistula needle, but the thickness of the gauze is not easy to control and the gauze is also easy to shift. Therefore, it is necessary to develop an adhesive tape to fix the fistula needle. Utility Model Content

[0003] In view of the above-mentioned defects in the existing technology, the purpose of this utility model is to provide an adhesive tape for fixing an arteriovenous fistula needle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adhesive tape for fixing an arteriovenous fistula needle includes an adhesive tape layer, a separator layer, a metal strip, and an outer protective layer; the adhesive tape layer, separator layer, metal strip, and outer protective layer are sequentially bonded together from bottom to top; two metal strips are provided, the two metal strips are collinear, and the area between the two metal strips is a tube-covering zone, the distance between the two metal strips, i.e., the length K of the tube-covering zone, satisfies:

[0006] πD / 2 < K < 3πD / 4;

[0007] Where D is the outer diameter of the tubing behind the fistula needle.

[0008] Furthermore, the adhesive layer includes an inner lining layer and an adhesive layer. The upper end face of the inner lining layer is connected to the separator layer, the lower end face of the inner lining layer is provided with the adhesive layer, and a release film is provided under the adhesive layer.

[0009] Furthermore, the outer protective layer, the separating layer, the inner lining layer, and the adhesive layer are of equal length and width, and the metal strip does not extend beyond the outer protective layer.

[0010] Furthermore, the metal strip is filamentous, and its diameter is one-twentieth of the outer diameter of the pipe.

[0011] Furthermore, the separating layer is a silicone layer.

[0012] Furthermore, the outer protective layer, the separating layer, and the adhesive tape layer are connected by long strips of stitching, and the stitching is covered with a metal strip.

[0013] Furthermore, the suture is a bandage suture.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model can raise the tubing by using two metal strips. By pinching it to the skin as a reference, the tubing can be accurately raised so that it is flush with the tip of the fistula needle, thus controlling the depth and direction of the fistula needle.

[0016] 2. This invention uses silicone as a separating layer, which can effectively reduce the pressure of the metal strip on the skin and improve patient comfort.

[0017] 3. The two metal strips of this utility model can also wrap around the patient's arm, improving the adhesion of the adhesive tape. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the adhesive tape used to fix an arteriovenous fistula needle according to this utility model.

[0019] Figure 2 yes Figure 1 Sectional view at point AA.

[0020] Figure 3 This is a schematic diagram of lifting the pipeline according to the present invention.

[0021] Figure 4 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0022] In the diagram: 1. Outer protective layer; 2. Metal strip; 3. Separator layer; 4. Inner lining layer; 5. Adhesive layer; 6. Pipeline; 7. Seam; 8. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figure 1 The present invention provides an adhesive tape for fixing an arteriovenous fistula needle, comprising, from bottom to top, an adhesive tape layer, a separating layer 3, a metal strip 2, and an outer protective layer 1. Two metal strips 2 are provided, and the two metal strips 2 are collinear. The area between the two metal strips 2 is a tube-covering area 6. The metal strips 2 make the adhesive tape malleable. When fixing the arteriovenous fistula needle, the tube 7 behind the arteriovenous fistula needle is lifted by pinching the metal strips 2 to ensure that the arteriovenous fistula needle head and the tube 7 are on the same horizontal line.

[0026] Specifically, the distance between the two metal strips 2, i.e. the length K of the tube 6, satisfies:

[0027] πD / 2 < K < 3πD / 4;

[0028] Where D is the outer diameter of the tube 7 behind the fistula needle.

[0029] This ensures that the two metal strips 2 can stably lift the pipe 7.

[0030] Specifically, the adhesive layer includes an inner lining layer 4 and an adhesive layer 5.

[0031] Specifically, the inner lining layer 4, the separator layer 3, the metal strip 2, and the outer protective layer 1 are bonded together in sequence from bottom to top with medical adhesive. An adhesive layer 5 is coated on the lower end face of the inner lining layer 4, and a separation membrane is provided under the adhesive layer 5.

[0032] Preferably, two or more adhesive tapes for fixing fistula needles are provided on an isolation membrane.

[0033] Specifically, the outer protective layer 1, the separator layer 3, the inner lining layer 4, and the adhesive layer 5 are of equal length and width, with a length of 20cm and a width of 3cm. The metal strip 2 is 7cm long and does not extend beyond the outer protective layer 1.

[0034] The separator 3 is used to separate the metal strip 2, reducing the discomfort caused to the patient by the metal strip 2.

[0035] Compared to existing medical adhesive tapes, this patented method of use eliminates the need for gauze padding under the tube 7. During use, the fistula needle tail is aligned with the area without metal strips, and the tube 7 is aligned with the covering area 6. Two fingers lift the tube 7 until it is flush with the fistula needle. The two metal strips 2 on either side of the tube 7 are then pinched, applying pressure to the patient's skin with the fingertips. Upon releasing, the metal strips 2 slightly spring back and reshape, forming a shape similar to... Figure 3 As shown in the diagram, the adhesive tape is finally pressed tightly to complete the fixation of the fistula needle. The metal strip 2 also serves to wrap around the patient's arm to reinforce the fixation of the adhesive tape.

[0036] Example 2:

[0037] Based on Example 1, this example provides a selection of materials for the adhesive tape used to fix the fistula needle.

[0038] Both the outer protective layer 1 and the inner lining layer 4 are made of non-woven fabric or cotton fabric.

[0039] The metal strip 2 is preferably 316L stainless steel wire with a diameter of 0.2mm-0.8mm. 316L stainless steel has strong corrosion resistance and will not be corroded by the bonding material. 316L stainless steel wire has good plasticity and high strength, which can support the pipeline 7. In addition, 316L stainless steel wire has good toughness and is not easy to break after bending.

[0040] Preferably, the diameter of the metal strip 2 is selected to be one-twentieth of the outer diameter of the pipe 7 to achieve effective support.

[0041] The separator layer 3 is a silicone layer.

[0042] Preferably, the silicone layer is made of foamed silicone rubber, which has good damping and thermal insulation properties, reducing discomfort to the patient caused by the metal strip 2. Preferably, the thickness of the silicone layer is 0.5mm-1.5mm.

[0043] Specifically, the adhesive layer 5 is an acrylic pressure-sensitive adhesive.

[0044] Specifically, the release film is a PE film or release paper.

[0045] Example 3:

[0046] Based on Example 1, combined with Figure 3 In this embodiment, in order to prevent the metal strip 2 from losing its adhesive and moving, the outer protective layer 1, the separator layer 3, and the adhesive tape layer are connected by a long strip of stitching 8. The stitching 8 covers the metal strip 2 and restricts the position of the metal strip 2.

[0047] Preferably, the stitch 8 is a two-needle three-thread overlock stitch, which can cover the metal strip 2 with one stitch, and the width of the two-needle three-thread overlock stitch is 3mm.

[0048] In this embodiment, the inner lining layer 4 is made of cotton cloth, the sewing thread 8 is made of cotton thread, and the outer protective layer 1, metal strip 2, separator layer 3 and inner lining layer 4 are bonded together and then sewn. After sewing, the adhesive layer 5 is applied and the release film is attached.

[0049] All components not discussed in detail in this application, as well as the connection methods of these components, are well-known technologies in this field. They can be directly applied and will not be elaborated further.

[0050] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A type of adhesive tape for fixing an arteriovenous fistula needle, comprising an adhesive tape layer, characterized in that, It also includes a separator layer, metal strips, and an outer protective layer; The adhesive tape layer, the separator layer, the metal strip, and the outer protective layer are bonded together sequentially from bottom to top; Two metal strips are provided, and the two metal strips are collinear. The area between the two metal strips is the tube-enclosing area. The distance between the two metal strips, i.e., the length K of the tube-enclosing area, satisfies: πD / 2 < K < 3πD / 4; Where D is the outer diameter of the tube behind the fistula needle.

2. The adhesive tape for fixing an arteriovenous fistula needle according to claim 1, characterized in that, The adhesive layer includes an inner lining layer and an adhesive layer. The upper end face of the inner lining layer is connected to the separator layer, the lower end face of the inner lining layer is provided with the adhesive layer, and a release film is provided under the adhesive layer.

3. The adhesive tape for fixing an arteriovenous fistula needle according to claim 2, characterized in that, The outer protective layer, the separator layer, the inner lining layer, and the adhesive layer are of equal length and width, and the metal strip does not extend beyond the outer protective layer.

4. The adhesive tape for fixing an arteriovenous fistula needle according to claim 1, characterized in that, The metal strip is filamentous, and its diameter is one-twentieth of the outer diameter of the pipe.

5. The adhesive tape for fixing an arteriovenous fistula needle according to claim 1, characterized in that, The separator layer is a silicone layer.

6. The adhesive tape for fixing an arteriovenous fistula needle according to claim 1, characterized in that, The outer protective layer, the separator layer, and the adhesive tape layer are connected by long strips of stitching, which are covered with metal strips.

7. The adhesive tape for fixing an arteriovenous fistula needle according to claim 6, characterized in that, The suture is a bandage suture.

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