Special patch for transfusion port non-injury needle

Abstract

The utility model discloses a patch special for an infusion port non-injury needle, and belongs to the technical field of medical instruments. An application special for an infusion port non-injury needle comprises an annular sheet-shaped outer application body, a central application body is arranged in the middle of the outer application body, an annular corrugated side wall is arranged on the edge of the central application body, the inner wall of the outer application body is connected with the bottom edge of the corrugated side wall, and the inner wall of the outer application body is connected with the bottom edge of the corrugated side wall. An annular foam dressing is arranged below the corrugated side wall and located at the bottom of the outer side application body, and the bottom face of the annular foam dressing is flush with the bottom face of the outer side application body. The utility model has the advantages of reducing the curled edge of the application on the outer side, and avoiding damage, displacement and slippage.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a special dressing for a non-invasive needle of an infusion port. Background Art

[0002] In addition to general intravenous infusion, the infusion port can also be used for treatment operations such as blood products, chemotherapy drugs, and venous blood sampling. It can not only reduce the pain suffered by patients due to repeated punctures, reduce the workload of nursing staff, but also has a low infection rate and a long indwelling time. The infusion port has been widely used in clinical oncology patients. During the use of the infusion port, after indwelling the non-invasive needle, curling and insecure shaping of the dressing are common problems, which are extremely likely to cause related complications. Therefore, choosing the best method for fixing the non-invasive needle is the key to ensuring the patient's venous access. Traditional methods for fixing non-invasive needles often use transparent dressings, adhesive tapes, 3M elastic adhesives, etc. for reinforcement, but they all have certain defects: for example, the transparent dressing cannot be effectively and firmly shaped and is prone to curling; when fixed with adhesive tape, skin allergic reactions, rashes, and itching are likely to occur, and the patient feels uncomfortable; when fixed with 3M elastic adhesive, although the adhesion is firm, it needs to be cut, the consumable cost is relatively high, and there are problems such as difficult tearing and adhesive residue. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problem that the dressing for the non-invasive needle of the infusion port in the prior art is prone to curling, and a special dressing for the non-invasive needle of the infusion port is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A special dressing for a non-invasive needle of an infusion port, including an outer dressing in the shape of an annular sheet. A central dressing is arranged in the middle of the outer dressing. An annular corrugated side wall is arranged at the edge of the central dressing. The inner wall of the outer dressing is connected to the bottom edge of the corrugated side wall;

[0006] An annular foam dressing is arranged below the corrugated side wall. The annular foam dressing is located at the bottom of the outer dressing, and the bottom surface of the annular foam dressing is flush with the bottom surface of the outer dressing.

[0007] Further, a pressing ring is arranged at the edge of the outer dressing, and the thickness of the outer edge of the pressing ring is greater than that of the inner edge.

[0008] Further, a chamfering treatment is performed between the outer side wall and the top surface of the pressing ring. An angle a is formed between the outer side wall of the pressing ring and the vertical direction, and the angle a is less than degrees.

[0009] Further, an extension tube groove is radially opened on the outer dressing, and the extension tube groove penetrates the outer dressing, the annular foam dressing, and the pressing ring on the same side.

[0010] Further, an extension tube adhesive tape is connected to the outer side wall of the outer patch, and the extension tube adhesive tape is located on the side close to the extension tube groove.

[0011] Further, an auxiliary tube is provided at the top of the extension tube groove, and the auxiliary tube is fixedly connected between the outer patch, the annular foam dressing, and the crimping ring.

[0012] Further, the inner wall of the auxiliary tube is a non-adhesive clean surface.

[0013] Further, a foam dressing groove is provided at the lower position of the outer patch. The foam dressing groove protrudes upward, and the bottom of the foam dressing groove is open. The annular foam dressing is fixed in the foam dressing groove.

[0014] Further, a shaping strip is embedded inside the corrugated side wall, and the shaping strip is wavy.

[0015] Further, the shaping strip is a soft metal strip, and the surface of the soft metal strip is coated with a polyolefin high polymer.

[0016] Compared with the prior art, the present utility model provides a special patch for a non-invasive needle of an infusion port, having the following beneficial effects:

[0017] When using the special patch for a non-invasive needle of an infusion port of the present utility model, a nurse performs non-invasive needle puncture. After puncture, with the puncture point as the center, the central patch is placed over the non-invasive needle. The annular foam dressing is gently pressed to make the annular foam dressing fit the patient's skin surface. Then, the central patch is gently pressed and pasted on the non-invasive needle without tension. Next, the outer patch is gently pressed to make the outer patch fit tightly with the patient's skin surface, thereby effectively fixing the non-invasive needle. Compared with the prior art, the central patch, the corrugated side wall, and the annular foam dressing cooperate to form an independent space, separating the non-invasive needle from the outside, preventing the non-invasive needle from shifting or slipping, and the annular foam dressing prevents the side of the outer patch close to the non-invasive needle from curling.

[0018] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification; and to some extent, based on the study of the following text, it will be obvious to those skilled in the art; or, it can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is the Figure 1 amplified schematic diagram of the structure of part A in the present utility model;

[0021] Figure 3 Schematic cross-sectional view of the overall structure of the present utility model in the main viewing direction;

[0022] Figure 4 Of the present utility model Figure 3 Enlarged schematic view of the structure of part B in

[0023] Figure 5 Of the present utility model Figure 3 Enlarged schematic view of the structure of part C in

[0024] Figure 6 Three-dimensional schematic view of the annular foam dressing structure of the present utility model.

[0025] In the figure:

[0026] 1. Outer patch; 2. Central patch; 3. Annular foam dressing; 4. Crimping ring; 5. Peel tab; 6. Anti-adhesive isolation sheet; 7. Extension tube adhesive tape; 8. Extension tube groove; 9. Auxiliary tube; 10. Corrugated side wall; 11. Foam dressing groove; 12. Shaping strip. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] Referring to Figures 1-6 , a special patch for a non-invasive needle of an infusion port of the present utility model includes an annular sheet-shaped outer patch 1. A central patch 2 is provided in the middle of the outer patch 1 of the outer patch 1. The central patch 2 is located above the outer patch 1. Both the outer patch 1 and the central patch 2 are made of polyurethane film, and a low-allergy adhesive is coated on the bottom of the polyurethane film.

[0029] An annular corrugated side wall 10 is fixed to the edge of the central patch 2. The inner wall of the outer patch 1 is connected to the bottom edge of the corrugated side wall 10. The structure of the corrugated side wall 10 is such that the corrugated side wall 10 can be plastically deformed to facilitate adjusting the height of the central patch 2 so that the central patch 2 can be attached to the non-invasive needle without tension.

[0030] During the use of the previous patch, the patch was directly adhered to the non-invasive needle. Due to the irregular structural characteristics of the non-invasive needle, the middle part of the patch would be uneven and also present an irregular shape. The raised parts were not adhered to the skin. During the patient's movement, actions such as the relaxation and unfolding of the skin would pull the patch, causing the middle of the patch to become loose and then fall off.

[0031] In this application, in response to this situation, the central patch 2 is used in cooperation with the corrugated side wall 10 to separately cover the non-invasive needle. The bottom of the corrugated side wall 10 is flat, and then the bottom of the corrugated side wall 10 is reinforced and pasted with the annular foam dressing 3, which is used in cooperation with the outer patch 1 to reduce the formation of wrinkled air pockets on the outer patch 1, thereby reducing the situation of falling off caused by weak bonding.

[0032] An annular foam dressing 3 is installed below the corrugated side wall 10. The annular foam dressing 3 is located at the bottom of the outer patch 1, and the bottom surface of the annular foam dressing 3 is flush with the bottom surface of the outer patch 1.

[0033] The hardness and toughness of the annular foam dressing 3 are slightly higher than those of the polyurethane film. Compared with the outer patch 1 made of the polyurethane film, it can provide a stronger structural bonding effect and fix this patch from the inside of the outer patch 1.

[0034] The bottom surface of the annular foam dressing 3 is flush with the bottom surface of the outer patch 1, which also reduces the situation of air pockets at the bottom of the outer patch 1, improves the flatness of the annular foam dressing 3 when pasted with the outer patch 1 and fitting the skin, and prevents the inner side of the outer patch 1 from curling and falling off.

[0035] A crimping ring 4 is provided at the edge of the outer patch 1. The crimping ring 4 can be made of medical silicone material with good flexibility, and is used to tightly press the outer edge of the outer patch 1 against the skin to reduce edge curling.

[0036] The thickness of the outer edge of the crimping ring 4 is greater than that of the inner edge, and the side wall and the top surface of the crimping ring 4 are smoothly transitionally connected, reducing the volume and material consumption of the crimping ring 4 on the premise of ensuring the anti-curling effect.

[0037] A chamfering treatment is performed between the outer side wall and the top surface of the crimping ring 4. An angle a is formed between the outer side wall of the crimping ring 4 and the vertical direction, and the angle a is less than 45 degrees. And the side wall of the crimping ring 4 is as Figure 5 shown, is a convex arc surface structure outward, making the side wall of the crimping ring 4 present a relatively "steep" state. This shape with a thicker outer side and a thinner inner side makes the structure and mass of the crimping ring 4 mainly distributed on the outer side, thereby better offsetting the external force that causes the outer patch 1 to curl.

[0038] The ratio of the radial width (one side, such as the position shown in Figure 5 the figure) of the crimping ring 4 to the vertical thickness is greater than 3:1, making the crimping ring 4 as a whole flat. Since the medical silicone itself has good flexibility and elasticity, when subjected to an external force, it has a tendency to maintain its original state. When the outer edge of the outer patch 1 is stressed and about to curl, the tendency of the crimping ring 4 to maintain its original state can reduce the occurrence of curling.

[0039] The outer patch 1 is radially provided with an extended tube groove 8 along its upper edge, and the extended tube groove 8 penetrates through the outer patch 1, the annular foam dressing 3, and the crimping ring 4 on the same side for the extended tube passing through the atraumatic needle.

[0040] Specifically, after fixing the atraumatic needle, pass the extended tube through the annular foam dressing 3, the outer patch 1, and the crimping ring 4 from the extended tube groove 8, so that the annular foam dressing 3, the outer patch 1, and the crimping ring 4 can maintain a flat fit with the skin, preventing unevenness, wrinkling and other situations.

[0041] An extended tube adhesive tape 7 is connected to the outer wall of the outer patch 1, and the extended tube adhesive tape 7 is located on the side close to the extended tube groove 8. After the extended tube of the atraumatic needle extends out from the extended tube groove 8, use the extended tube adhesive tape 7 to fix the extended part of the extended tube on the patient's skin, completing the final fixation of the atraumatic needle patch.

[0042] An auxiliary tube 9 is connected to the top of the extended tube groove 8. The auxiliary tube 9 is a structure formed by cutting a flexible tube along the radial direction. The cross-section of the auxiliary tube 9 is a sector ring. The auxiliary tube 9 is fixedly connected to the outer patch 1, the annular foam dressing 3, and the crimping ring 4, covering the extended tube groove 8 to prevent the part of the extended tube between the annular foam dressing 3 and the crimping ring 4 from leaking.

[0043] The inner wall of the auxiliary tube 9 is a non-adhesive clean surface, avoiding the adhesion between the auxiliary tube 9 and the extended tube, so that the auxiliary tube 9 covers the outside of the extended tube without tension.

[0044] A foam dressing groove 11 is processed at the lower position of the outer patch 1. The foam dressing groove 11 protrudes upward, and the bottom of the foam dressing groove 11 is open. The annular foam dressing 3 is fixed in the foam dressing groove 11.

[0045] During processing, hot press the outer patch 1 upward to form the foam dressing groove 11. The inner wall of the foam dressing groove 11 fits with the outer wall of the annular foam dressing 3. Similarly, it is to reduce the situation that the annular foam dressing 3 is directly bonded to the bottom surface of the outer patch 1, resulting in unnatural adhesion voids and wrinkles near the edge of the annular foam dressing 3 on the outer patch during pasting.

[0046] A shaping strip 12 is embedded and installed inside the corrugated side wall 10. The shaping strip 12 is wavy, and the shape of the shaping strip 12 fits with the corrugated side wall 10. The corrugated side wall 10 can also be made of polyurethane film. Two layers of polyurethane film sandwich the shaping strip 12 in the middle, which is used to help shape the corrugated side wall 10. Manually pull up or press down the corrugated side wall 10, so that the height of the corrugated side wall 10 is close to the height of the atraumatic needle, so that the central patch 2 can be pasted on the atraumatic needle, and at the same time, it will not exert too much pressure on the atraumatic needle, resulting in indentations on the patient caused by the atraumatic needle, thereby fixing the atraumatic needle.

[0047] The shaping strip 12 is a soft metal strip. The soft metal strip can be a soft stainless steel strip or an aluminum strip. The surface of the soft metal strip is coated with a polyolefin polymer to prevent the direct exposure of the metal strip.

[0048] Working principle: During use, the caregiver performs a puncture with the non-invasive needle. After the puncture, with the puncture point as the center, cover the central dressing 2 over the non-invasive needle, gently press the annular foam dressing 3 to make the annular foam dressing 3 fit the patient's skin surface, then gently press the central dressing 2 and the corrugated side wall 10 to paste the central dressing 2 on the non-invasive needle without tension, and then gently press the outer dressing 1 to make the outer dressing 1 fit tightly with the patient's skin surface, so as to effectively fix the non-invasive needle. Then, pass the extension tube of the non-invasive needle through the extension tube slot 8 and extend it to the outside of the outer dressing 1. Finally, use the extension tube adhesive tape 7 to fix the outer extension tube on the patient's skin to complete the final fixation of the non-invasive needle dressing.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

[0050] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A non-invasive needle dressing for an infusion port, comprising an outer dressing (1) in the form of an annular sheet, characterized in that: The outer patch (1) is provided with a central patch (2) in the middle of the outer patch (1), an annular corrugated side wall (10) is provided at the edge of the central patch (2), and the inner wall of the outer patch (1) is connected to the bottom edge of the corrugated side wall (10); An annular foam dressing (3) is provided below the corrugated side wall (10); the annular foam dressing (3) is located at the bottom of the outer dressing (1); and the bottom surface of the annular foam dressing (3) is flush with the bottom surface of the outer dressing (1).

2. The infusion port non-destructive needle dressing according to claim 1, characterized in that: The edge of the outer patch (1) is provided with a pressure ring (4), and the thickness of the outer edge of the pressure ring (4) is greater than the thickness of the inner edge.

3. The infusion port non-destructive needle dressing according to claim 2, characterized in that: The outer wall and the top surface of the edge pressing ring (4) are chamfered, and an angle a is formed between the outer wall of the edge pressing ring (4) and the vertical direction, and the angle a is less than 45 degrees.

4. The infusion port non-destructive needle dressing according to claim 2, characterized in that: An extended tube groove (8) is radially provided on the outer dressing (1), and the extended tube groove (8) passes through the outer dressing (1), the annular foam dressing (3), and the edge pressing ring (4) on the same side.

5. The non-destructive needle-specific dressing for an infusion port according to claim 4, characterized in that: An extension tube adhesive tape (7) is connected to the outer wall of the outer patch (1), and the extension tube adhesive tape (7) is located on a side close to the extension tube groove (8).

6. The infusion port non-destructive needle dressing according to claim 4, characterized in that: An auxiliary tube (9) is provided at the top of the extended tube groove (8), and the auxiliary tube (9) is fixedly connected to the outer dressing (1), the annular foam dressing (3), and the edge pressing ring (4).

7. The non-destructive needle-specific dressing for an infusion port according to claim 6, characterized in that: The inner wall of the auxiliary tube (9) is a clean surface without glue.

8. The non-destructive needle dressing for infusion port according to claim 1, characterized in that: A foam dressing groove (11) is provided at a position below the outer dressing (1), the foam dressing groove (11) protrudes upwards, the bottom of the foam dressing groove (11) is open, and the annular foam dressing (3) is fixed in the foam dressing groove (11).

9. The infusion port non-destructive needle dressing according to claim 1, characterized in that: A shaping strip (12) is embedded and installed inside the corrugated side wall (10), and the shaping strip (12) is wavy.

10. The non-destructive needle dressing for infusion port according to claim 9, characterized in that: The shaping strip (12) is a soft metal strip, and a polyolefin polymer coating is formed on the surface of the soft metal strip.

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