Sterile pressure patch

Abstract

The utility model discloses a sterile pressure patch, belongs to the technical field of medical instruments, particularly relates to a sterile pressure patch used for pressing a needle eye after blood drawing, and aims to solve the technical problems that blood circulation is affected due to the fact that an elastic band of an existing pressure patch tightens the skin, and a pressing area is large due to the fact that the whole patch body is tightened. The patch comprises a patch body, a medicine layer arranged at the bottom of the patch body and adhesive layers arranged at the bottom of the patch body and located on the two sides of the medicine layer. An air bag is arranged in the middle area in the patch body, air storage bags are arranged on the two sides of the air bag in the patch body, and the air storage bags are communicated with the air bag through air channels. In the process of pasting the sterile pressure patch, gas in the gas storage bag is extruded into the gas bag, and most of the gas enters the gas bag after the sterile pressure patch is pasted, so that the gas bag can extrude a needle eye and a small-range area around the needle eye; the pressing area of the air bag is small, the skin cannot be tightened, blood circulation cannot be affected, and the sterile pressure patch is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices and relates to a sterile pressure patch, in particular to a sterile pressure patch used for pressing a needle hole after blood is drawn. Background Art

[0002] After an infusion or blood draw, a cotton ball or swab is usually used to apply simple pressure to the puncture site. When using conventional cotton balls or swabs, the person receiving the infusion or blood draw usually uses their other hand to apply pressure. However, for some special needs individuals, this cannot be accomplished with their other hand alone and requires the assistance of a caregiver or medical staff, causing significant inconvenience.

[0003] To this end, a new product called a pressure patch has gradually entered the public eye and is gaining widespread acceptance. Similar to a Band-Aid, a pressure patch can be applied to an arm, finger, or other area where a needle is drawn after an infusion or blood draw, covering the needle hole and eliminating the need to apply pressure with your other hand.

[0004] The utility model patent with application number 202321863718.4 discloses a pressure patch, which includes a patch body, a first pressure component and a second pressure component. The patch body includes a connecting portion and a buffering liquid absorption portion. The connecting portion is connected to the human skin. The buffering liquid absorption portion is connected to the side of the connecting portion close to the human skin and contacts the human skin. The two ends of the first pressure component are respectively connected to the two ends of the connecting portion in the length direction and the connection extends outward to form a first fixing portion, which can be connected to the human skin. The two ends of the second pressure component are respectively connected to the two ends of the connecting portion in the width direction and the connection extends outward to form a second fixing portion, which can be connected to the human skin. After infusion or blood drawing and needle removal, the pressure patch is connected to the human skin. The mutual cooperation of the patch body, the first pressure component and the second pressure component can achieve a multi-level pressing effect, while ensuring stable and safe pressing, freeing the hands of medical staff or accompanying personnel and effectively improving efficiency.

[0005] While the aforementioned pressure patch can maintain its entire body in close contact with human skin through the elastic force of the elastic band, due to the small size of the needle hole, the pressure patch typically only needs to apply pressure to the needle hole and a small area around it during use. The aforementioned pressure patch, on the other hand, provides a relatively large pressing area throughout its entire body. Furthermore, the elastic force of the elastic band can easily tighten the skin in contact with the band, creating marks and affecting blood circulation. Utility Model Content

[0006] The purpose of the utility model is to provide a sterile pressure patch in order to solve the technical problems of the existing pressure patch that the elastic band causes the skin to be tightened and affects the blood circulation, and the pressing area is larger due to tightening the entire patch body.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A sterile pressure patch comprises a patch body, a drug layer disposed at the bottom of the patch body, and adhesive layers disposed at the bottom of the patch body and located on both sides of the drug layer; an airbag is disposed in the middle area of ​​the patch body, and air storage bags are disposed on both sides of the airbag within the patch body, and the air storage bags are connected to the airbag through an airway.

[0009] Furthermore, a sealing line formed by heat-pressing sealing is provided in the middle of the air channel.

[0010] Furthermore, an adhesive layer is provided on the inner upper wall and the inner lower wall of the air storage bag.

[0011] Furthermore, a breathable and waterproof layer is provided on the top surface of the sticker body.

[0012] Furthermore, the breathable and waterproof layer is a TPU film.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. In the present invention, a central airbag and air storage bags on either side of the airbag are provided within the patch body. During the application of the sterile pressure patch, the gas in the air storage bags is squeezed into the airbags. After the sterile pressure patch is applied, most of the gas enters the airbags, leaving a small amount or no gas remaining in the air storage bags. Because the gas in the airbags is pre-compressed during the application process, the airbags can squeeze the needle eye and a small area around the needle eye after the sterile pressure patch is applied. During use, only the airbags exert pressure on the skin, and the pressing area of ​​the airbags is relatively small, which does not tighten the skin and affect blood circulation. The sterile pressure patch is more convenient to use, can fully free up the other hand, is suitable for various situations, and is safer and more reliable to use.

[0015] 2. In the present invention, a sealing line formed by hot pressing is provided in the middle of the airway; before use, the sealing line is in a sealed state, and the gas in the air storage bag cannot enter the airbag through the airway; when in use, the airbag area is first pressed against the skin, and then the air storage bag is pressed hard, the sealing line is stretched, and the gas in the air storage bag enters the airbag, and the pre-tightening force applied on both sides of the sterile pressure patch during fitting makes most of the gas located in the airbag, and presses the needle hole and the surrounding area; because the airbag is pressed against the skin at the beginning, and then gas is filled to expand the airbag, the needle hole and the needle hole area are effectively pressed, and the use of the sterile pressure patch is safer and more reliable.

[0016] 3. In the present invention, the inner upper wall and the inner lower wall of the air storage bag are both provided with an adhesive layer. After the gas in the air storage bag is squeezed into the airbag, the inner upper wall and the inner lower wall of the air storage bag are bonded by the adhesive layer, which effectively prevents the gas in the airbag from flowing back into the air storage bag, ensuring that the airbag effectively presses the needle eye and the surrounding area.

[0017] 4. In the present invention, a breathable waterproof layer is provided on the top surface of the sterile pressure patch, and the breathable waterproof layer is made of TPU film. The breathable waterproof layer can effectively improve the waterproof performance of the sterile pressure patch, effectively preventing the needle hole from contacting with external water, and effectively preventing needle hole infection caused by contact with external water. In addition, water vapor generated by the skin can penetrate outward through the non-airbag area of ​​the sterile pressure patch, keeping the skin where the sterile pressure patch is applied dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the sticker body in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the airbag in the present invention before it is inflated;

[0021] Figure 4 This is a schematic diagram of the structure of the airbag after inflation in the utility model;

[0022] Figure 5 It is a partial schematic diagram of the air storage bag of the utility model before the air bag is inflated;

[0023] Figure 6 It is a partial schematic diagram of the air storage bag after the air bag is inflated in the utility model;

[0024] Among them, the accompanying drawings are marked as follows: 1-breathable and waterproof layer, 2-body, 3-adhesive layer, 4-drug layer, 21-air storage bag, 22-airway, 23-airbag, 24-sealing line, 25-adhesive layer. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0026] Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0027] Example 1

[0028] This embodiment provides a sterile pressure patch, the purpose of which is to press the needle eye and the surrounding area through the sterile pressure patch, without the user having to manually press the needle eye and the surrounding area continuously, thereby freeing the user's hands and making the use of the sterile pressure patch more convenient.

[0029] First of all, it should be noted that the sterile pressure patch does not mean that the pressure patch needs to be used in a sterile environment, but rather that the pressure patch itself is sterile.

[0030] This sterile pressure patch comprises a long, rectangular patch body 2, with a drug layer 4 positioned in the middle of its bottom. This drug layer 4 not only sterilizes and disinfects, but also accelerates blood clotting at the needle prick, quickly stopping bleeding. Adhesive layers 3 are positioned on either side of the bottom of the patch body 2, flanking the drug layer 4. These layers allow the sterile pressure patch to be adhered to the skin. The arrangement of the patch body 2, drug layer 4, and adhesive layer 3 on the sterile pressure patch is similar to that of a Band-Aid.

[0031] To increase the pressure and enhance the compressive effect of the sterile pressure patch on the needle eye and surrounding area, this embodiment incorporates an innovative structural design into the patch body 2: an airbag 23 is positioned in the central region of the patch body 2. This airbag 23 is inflated by filling it with gas, applying pressure to the skin. Air reservoirs 21 are located on either side of the airbag 23 within the patch body 2, each connected to the same airbag 23 via corresponding air passages 22.

[0032] During use, the airbag 23 is first squeezed to fill the air storage bags on both sides with gas, and then the deflated airbag 23 is placed tightly against the skin at the needle eye. The adhesive layer 3 on one side of the sterile pressure patch is then gradually adhered to the skin, and during this process, the air storage bag 21 is pressed, allowing the gas in the air storage bag 21 to be filled into the airbag through the airway 22, tightening the sterile pressure patch. The adhesive layer on the other side of the sterile pressure patch is then gradually adhered to the skin, and again during this process, the air storage bag 21 is pressed, tightening the sterile pressure patch (the purpose of tightening is to prevent the gas in the airbag from flowing back into the air storage bag). In this way, most of the gas will fill the airbag, causing it to expand, pressing the needle eye and the surrounding area.

[0033] During use, only the airbag applies pressure to the skin. The airbag's small pressing area doesn't tighten the skin and affect blood circulation. This sterile pressure patch is more convenient to use, freeing up your other hand. It's suitable for a variety of situations and is safer and more reliable. This sterile pressure patch effectively prevents bruising caused by insufficient pressure. It also addresses the problem of some patients with poor coagulation function requiring extended pressure after a blood test, and it addresses the situation where patients traveling alone to the hospital have both hands free after a blood draw. This sterile pressure patch is also suitable for use after intravenous infusion.

[0034] Example 2

[0035] To reduce the need to squeeze the airbag 23 before applying the sterile pressure patch, the airbag 23 is kept in a deflated (non-inflated) state before use. Therefore, based on Example 1, a sealing line 24 is provided in the middle of each airway 22. This sealing line 24 is formed by heat-pressing, so that the sealing line 24 can be broken open by increasing air pressure, allowing gas to enter the airbag 23.

[0036] Before use, the sealing line 24 is in a sealed state and the airbag 23 is in a deflated state; when in use, first fit the deflated airbag on the skin, then press the air storage bag 21 on one side hard, the pressure inside the air storage bag 21 increases, and the sealing line 24 in the corresponding airway 22 is broken, the gas in the air storage bag 21 is filled into the airbag 23, and the sterile pressure patch on that side is tightened and pasted; then press the air storage bag 21 on the other side hard, similarly, the pressure inside the air storage bag 21 increases, the sealing line 24 in the corresponding airway 22 is broken, the gas is filled into the airbag 23, and the sterile pressure patch on that side is tightened and pasted.

[0037] Example 3

[0038] In order to prevent the gas that has entered the airbag 23 from flowing back into the air storage bag 21 during the application of the sterile pressure patch, the structure of the air storage bag 21 is further innovated based on the above embodiment. That is, an adhesive layer 25 is provided on the inner upper wall and the inner lower wall of the air storage bag 21. When the gas in the air storage bag 21 is filled into the airbag, the inner upper wall and the inner lower wall of the air storage bag 21 can be attached and bonded together.

[0039] During use, the air storage bag 21 is pressed, and the gas in the air storage bag 21 is filled into the airbag 23. In the process of pressing the air storage bag 21, the inner upper wall and the inner lower wall of the air storage bag 21 are attached and adhered together, thereby effectively preventing the gas in the airbag 23 from flowing back into the air storage bag 21.

[0040] Example 4

[0041] In order to improve the waterproof and breathable performance of the sterile pressure patch, based on the above embodiment, the sterile pressure patch is further innovated, that is, a breathable and waterproof layer 1 is provided on the top surface of the patch body 2, and the breathable and waterproof layer 1 is a TPU film.

[0042] TPU, short for thermoplastic polyurethane film, is a non-porous, hydrophilic film. Since TPU film itself has no pores, it naturally has excellent water-repellency. The breathability of TPU film is primarily achieved through its hydrophilic properties. By utilizing the difference in vapor pressure inside and outside the film, vapor is transferred from the high-pressure area (the area between the sterile pressure patch and the skin) to the low-pressure area (outside the sterile pressure patch), thus achieving breathability.

Claims

1. A sterile pressure patch, comprising a patch body (2), a drug layer (4) disposed at the bottom of the patch body (2), and an adhesive layer (3) disposed at the bottom of the patch body (2) and located on both sides of the drug layer (4); characterized in that: An air bag (23) is provided in the middle area of ​​the patch body (2), and air storage bags (21) are provided on both sides of the air bag (23) in the patch body (2). The air storage bags (21) are connected to the air bag (23) through an air channel (22).

2. The sterile pressure patch according to claim 1, characterized in that: A sealing line (24) formed by heat-pressing sealing is provided in the middle of the air channel (22).

3. The sterile pressure patch according to claim 1, characterized in that: The inner upper wall and the inner lower wall of the air storage bag (21) are both provided with an adhesive layer (25).

4. The sterile pressure patch according to claim 1, characterized in that: The top surface of the sticker body (2) is provided with a breathable and waterproof layer (1).

5. The sterile pressure patch according to claim 4, characterized in that: The breathable and waterproof layer (1) is a TPU film.

Images