Application assembly not prone to edge curling and capable of preventing red pressing

By designing a dressing assembly with a sponge pad and fixation strap, the problems of easy edge curling and redness caused by existing dressings were solved, achieving stable fixation of the cannula and improving patient comfort, while reducing the pain of repeated punctures.

CN223464307UActive Publication Date: 2025-10-24RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202422513642.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-10-24
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

Existing dressing components are prone to curling at the edges and have reduced adhesion, making it easy for patients to touch the puncture site during movement, causing discomfort, and they cannot effectively prevent the cannula from becoming red.

Method used

An applicator assembly comprising an applicator body and an attachment is designed. The applicator body includes a sponge pad and a tear-off fixing band, while the attachment includes a base, a sealing cap, and a support for securing the cannula needle. The sponge pad elevates the needle shaft to prevent redness and allows for observation of puncture site abnormalities through a viewing window.

Benefits of technology

It effectively prevents redness from the cannula, improves patient comfort, reduces the pain of repeated punctures, and is universally applicable while lowering costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an application component not easy to curl and capable of preventing red pressing, which comprises an application body and an additional piece, and the application body comprises an adhesive layer and a dressing layer. The adhesive layer and the dressing layer are sequentially stacked, and a first sponge mat is arranged at the edge of the adhesive layer and used for being cushioned below a trocar stem. And a tearable fixing belt is also arranged on the adhesive layer. The additional part comprises a base, a sealing cover, supporting parts and a second sponge mat, the second sponge mat and the supporting parts are fixed to the base, the sealing cover is connected with the supporting parts in a clamped mode, and the supporting parts are fixed to the two sides of the second sponge mat. Compared with the prior art, the application body comprises the sponge pad, a protective layer can be formed between the trocar and the skin, the trocar is prevented from pressing the skin red, in addition, the tail end of a needle tube can be effectively raised, and the needle tip is prevented from being raised. The additional part can fix the extension end of the trocar, and the additional part can be repeatedly used, so that the cost is saved, and the comfort level of a patient is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially is related to a kind of not easy to roll edge and prevent redness of application assembly. BACKGROUND

[0002] A trocar is a tool used in medical and laboratory settings, primarily for intravenous puncture, blood extraction, drug injection or infusion. It is composed of a hollow needle and an external sleeve, the needle is usually sharp to penetrate the skin, while the sleeve can be left in the body after the needle is withdrawn for drug delivery or blood collection. After intravenous puncture, a transparent dressing or other type of dressing is usually applied to fix the puncture site to prevent infection and protect the wound. Trocar can reduce the damage to blood vessels, reduce the discomfort after puncture, and can continue infusion or other operations after the needle is withdrawn, improve the convenience of operation, in addition, avoid the need for multiple punctures, reduce the pain of patients.

[0003] But the conventional dressing used in the prior art is a whole piece and is attached to the trocar as a whole, and the needle stem part of the trocar is padded under the dressing, which can reduce the adhesion of the dressing, and the patient can easily touch the puncture site when moving, causing discomfort to the patient.

[0004] Therefore, it is urgent to study a dressing assembly that can effectively fix the trocar and improve patient comfort. SUMMARY

[0005] The utility model discloses a kind of not easy to roll edge and prevent redness of application assembly to overcome the defects of the above prior art.The sponge pad in the application body can form a protective layer between trocar and skin, prevent the skin from being pressed red by trocar, in addition, it can also effectively pad high needle tube tail end, avoid needle tip to be raised.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] The utility model provides a kind of not easy to roll edge and prevent redness of application assembly, including application body and additional piece, the application body includes adhesive layer and dressing layer, the adhesive layer and dressing layer are stacked in sequence, the edge of the adhesive layer is equipped with first sponge pad, the first sponge pad is used to pad under trocar needle stem, avoid needle stem to press skin for a long time;The adhesive layer is also equipped with tearable fixing belt, the tearable fixing belt is used to fix trocar;

[0008] The additional piece includes base, sealing cover, support and second sponge pad, the second sponge pad and support are fixed on the base, the sealing cover is connected with support, the support is fixed on the both sides of second sponge pad, the additional piece is used to fix the extension end of trocar.

[0009] Further, the dressing layer is filled with silver ion dressing for anti-inflammatory;

[0010] The adhesive layer is provided with a plurality of small holes, and the small holes are located directly below the dressing layer.

[0011] Further, the first sponge pad is triangular, the long side of the first sponge pad is flush with the edge of the adhesive layer, one short side is integrated with the adhesive layer, and the other short side is separated from the adhesive layer.

[0012] Further, one end of the tearable fixing belt is fixedly connected with the adhesive layer, and the other end is tearable.

[0013] Further, the tearable fixing belt is provided with two, and the two tearable fixing belts are located on the two sides of the trocar, and are used for cross-fixing the needle stem of the trocar.

[0014] Further, the inner side of the sealing cover is provided with a third sponge pad, and the third sponge pad cooperates with the second sponge pad to fix the extended end of the trocar.

[0015] Further, the second sponge pad is provided with a groove, and the groove is used for placing the extended end of the trocar.

[0016] Further, the material of the sealing cover is silica gel material.

[0017] Further, the center of the dressing body is provided with a visual window, and the visual window is used for observing the needle insertion point, so as to timely find the phenomenon of bleeding and exudation, redness and infection, and even pipe detachment.

[0018] Further, the base is irregularly shaped, and the base has adhesion, and is used for fixing the additional part.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] 1. The dressing body contains a sponge pad, which can form a protective layer between the trocar and the skin, prevent the trocar from pressing the skin red, and effectively pad the tail end of the needle tube to avoid the needle tip from being raised.

[0021] 2. The dressing body is provided with a visual window, which can observe the needle insertion point, timely find whether the patient's puncture point is abnormal, has redness, heat and pain, and pipe detachment phenomenon, and reduce the pain of repeated puncture of the patient.

[0022] 3. The additional part can fix different extended ends of the trocar, has good universality, can be repeatedly used, saves cost, and improves the comfort of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 Structure diagram of the patch body in Example 1;

[0024] Fig. 2 Front view diagram of the accessory in Example 1;

[0025] Fig. 3 Top view diagram of the accessory in Example 1.

[0026] Explanation of the marks in the figure:

[0027] 1 - adhesive layer, 2 - visible window, 3 - dressing layer, 4 - tearable fixing belt, 5 - first sponge pad, 6 - trocar, 7 - sealing cover, 8 - support, 9 - second sponge pad, 10 - base. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application will be described in detail below with examples, which are implemented on the premise of the scheme described in the present application, and detailed implementation and specific operation process are given, but the protection scope of the present application is not limited to the following examples.

[0029] The present application will be further described below in combination with the drawings and specific examples. In the technical scheme, if the component model, material name, connection structure, preparation means, material, structure or component ratio and other features are not explicitly described, they are regarded as common technical features disclosed in the prior art.

[0030] Example 1

[0031] The present embodiment provides a patch assembly which is not easy to roll and prevents redness, as shown in Figs. 1-3 The center of the patch body is provided with a visible window 2, and the visible window 2 has a layer of transparent polyurethane film for observing the needle insertion point so as to timely find the phenomenon of bleeding, exudation, redness, infection, and even tube shedding.

[0032] The patch body includes an adhesive layer 1 and a dressing layer 3, which are stacked in sequence. The edge of the adhesive layer 1 is provided with a first sponge pad 5 for cushioning under the needle stem of the trocar to avoid long-term compression of the skin by the needle stem. The adhesive layer 1 is also provided with a tearable fixing belt 4 for fixing the trocar 6. A plurality of small holes are provided on the adhesive layer 1, which are located directly below the dressing layer 3 so as to allow the silver ion dressing in the dressing layer to penetrate and play a role in inflammation. The dressing layer 3 is filled with silver ion dressing for anti-inflammatory effect. The silver ion dressing is produced by the German B. Braun Melsungen AG company.

[0033] The first sponge pad 5 is triangular, the long side of the first sponge pad 5 is flush with the edge of the adhesive layer 1, one short side is integrated with the adhesive layer 1, and the other short side is separated from the adhesive layer 1. One end of the tearable fixing belt 4 is fixedly connected with the adhesive layer 1, and the other end is tearable. Two tearable fixing belts 4 are arranged on the two sides of the trocar 6, and are used for cross-fixing the needle stem of the trocar 6.

[0034] The additional part is used for fixing the extended end of the trocar, and comprises a base 10, a sealing cover 7, a supporting part 8 and a second sponge pad 9. The second sponge pad 9 and the supporting part 8 are fixed on the base 10, the sealing cover 7 is clamped with the supporting part 8, and the supporting part 8 is fixed on the two sides of the second sponge pad 9. The second sponge pad 9 is provided with a groove, and the groove is used for placing the extended end of the trocar. The base 10 is irregularly shaped, and the bottom layer of the base 10 is provided with adhesion, and is used for pasting the additional part on the skin.

[0035] The inner side of the sealing cover 7 is provided with a third sponge pad, the third sponge pad cooperates with the second sponge pad 9 to fix the extended end of the trocar, and the material of the sealing cover 7 is silica gel material.

[0036] As shown in the accompanying drawings, Fig. 1 When the trocar 6 is punctured, the visible window 2 is aligned with the puncture site, the body is pasted on the skin, the first sponge pad 5 is turned from above the trocar 6 to below the trocar 6, the needle tube is prevented from pressing the skin for a long time, the tearable fixing belt 4 is torn in the opposite direction of the arrow, the tearable fixing belt 4 is wound around the bottom side of the trocar 6, and finally the arrow direction of the tearable fixing belt 4 is fixed, so that the needle stem of the trocar is fixed. When the trocar 6 does not have an extended end, the body is used for fixation; when the trocar 6 has an extended end, the body and the additional part are used for fixing the trocar 6 and the extended end, so that the extended end is not fixed and the skin is not pressed.

[0037] The above description of the embodiments is for the convenience of the ordinary skilled in the art to understand and use the utility model. Those skilled in the art can obviously make various modifications to the embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A patch assembly that is not easy to roll and prevents redness, characterized by, The application relates to a dressing body and an additional part, the dressing body comprising a sticking layer (1) and a dressing layer (3), the sticking layer (1) and the dressing layer (3) being stacked in sequence, a first sponge pad (5) being arranged at the edge of the sticking layer (1) and used for being placed under the needle stem of a trocar (6) to avoid long-time compression of the skin by the needle stem; a tearable fixing belt (4) is further arranged on the sticking layer (1) and used for fixing the trocar (6); the additional part comprises a base (10), a sealing cover (7), a supporting piece (8) and a second sponge pad (9), the second sponge pad (9) and the supporting piece (8) being fixed on the base (10), the sealing cover (7) being clamped with the supporting piece (8), and the supporting piece (8) being fixed on the two sides of the second sponge pad (9), the additional part being used for fixing the extended end of the trocar.

2. The patch assembly of claim 1, wherein, The dressing layer (3) is filled with silver ion dressing and is used for inflammation elimination; a plurality of small holes are arranged on the sticking layer (1) and are located directly below the dressing layer (3).

3. The patch assembly of claim 1, wherein the adhesive layer is configured to prevent the patch from rolling up and to prevent the patch from being pressed red. The first sponge pad (5) is triangular, the long side of the first sponge pad (5) is flush with the edge of the sticking layer (1), one short side is integrated with the sticking layer (1), and the other short side is separated from the sticking layer (1).

4. The patch assembly of claim 1, wherein, One end of the tearable fixing belt (4) is fixedly connected with the sticking layer (1), and the other end can be torn.

5. The patch assembly of claim 4, wherein the adhesive layer is formed of a material that is not easily rolled up and prevents redness. Two tearable fixing belts (4) are arranged on the two sides of the trocar (6) and are used for cross-fixing the needle stem of the trocar (6).

6. The patch assembly of claim 1, wherein, A third sponge pad is arranged on the inner side of the sealing cover (7) and is used for fixing the extended end of the trocar together with the second sponge pad (9).

7. The patch assembly of claim 1, wherein the adhesive layer is configured to prevent the patch from rolling up and to prevent the patch from being pressed red. A groove is arranged on the second sponge pad (9) and is used for placing the extended end of the trocar (6).

8. The patch assembly of claim 1, wherein, The sealing cover (7) is made of silica gel material.

9. The patch assembly of claim 1, wherein, A visible window (2) is arranged at the center of the dressing body and is used for observing the needle insertion point so as to timely find the phenomena of bleeding, exudation, redness and infection, and even pipe disconnection.

10. The patch assembly of claim 1, wherein, The base (10) is irregularly shaped and has adhesion and is used for fixing the additional part.