WO2017133376A1

WO2017133376A1 - Compressed negative-pressure vacuum system

Info

Publication number: WO2017133376A1
Application number: PCT/CN2017/070343
Authority: WO
Inventors: 朱新生
Original assignee: 广东美捷威通生物科技有限公司
Priority date: 2016-02-03
Filing date: 2017-01-06
Publication date: 2017-08-10
Also published as: CN105596146B; CN105596146A

Abstract

A compressed negative pressure vacuum system comprises compressed a foam material layer (1) and an adhesive film (2). The adhesive film (2) surrounds outside an area to define the area containing the foam material layer (1) and forms adhesive wings (20) to be adhered to fixation locations. After the adhesive winds (20) are adhered to the fixation locations, the inner surfaces of the adhesive winds (20), the outer surface of the foam material layer (1), and the outer surfaces of the fixation locations form a first suction cavity (3). As the foam material layer (1) expands after absorbing a fluid, the volume of the first suction cavity (3) increases, creating a local vacuum. The local vacuum created by the compressed foam material layer (1) performs for a long time continuous negative-pressure suction on a wound surface and deep soft tissues, achieving the goals of gradually reducing the swelling in a wound and facilitating local blood circulation. Likewise, the local vacuum created by the compressed foam material layer (1) performs negative-pressure suction on a wound surface and soft tissue in deep layers of the skin containing dirt to be removed, gradually eliminating dirt in deep layers of the skin. Further, the compressed negative-pressure vacuum system can generate a negative pressure without connecting to an external negative pressure source, achieving body fluid vacuum suctioning and removing dirt in deep layers of the skin.

Description

Compressed vacuum system

Technical field

The present invention relates to an adsorption system, and more particularly to a compression vacuum system.

Background technique

Due to the development of the industry, there are more and more particles in the air, and some tiny dust is trapped in the skin of the human body to form dirt. Dirt on the surface of the skin can be removed by bathing, but dirt deep in the skin can't be cleaned by bathing. Modern people try to use cleansing liquids and chemical-containing cleaning stickers to clean the skin's deep dirt. Although the skin's deep dirt is cleaned to some extent, the residual chemicals can affect the skin.

There is also wound care. The wound is usually protected by a wound patch. The wound sticker is generally a medical polyurethane (PU) wound sticker. The medical polyurethane (PU) wound sticker is made of an imported breathable PU substrate and a composite surface backing substrate, which is cut, sterilized and packaged. Wound stickers can only be used for small pieces of trauma emergency treatment, thus temporarily stopping bleeding and protecting the wound. However, it should be noted that the time used should not be too long. If it is used too long, the tape on the outer layer of the wound is not breathable. It will make the wound and the skin around the wound white and soft, resulting in secondary infection of the bacteria. This will make the wound worse. It provides good conditions for wound or wound healing in the absence of exudation of the wound or wound. However, when a wound or a large area of the wound is exuded, since the wound patch cannot absorb liquid, the exudate remains on the surface of the wound or the wound surface, which is not conducive to wound or wound healing on the one hand, and forms a bacterial growth lesion on the other hand. In addition, there are some negative pressure adsorption wound stickers, which absorb the liquid on the surface of the wound and suck out the necrotic tissue deep in the wound. However, these wounds require an external negative pressure source to adsorb the exudate in the wound. .

Therefore, there is a need for a compressed vacuum vacuum system that adsorbs deep skin fouling and/or adsorbs wound exudate and draws out necrotic tissue deep in the wound.

Summary of the invention

It is an object of the present invention to provide a compressed vacuum system that adsorbs deep skin dirt and/or adsorbs wound exudate and draws out necrotic tissue deep in the wound.

The solution to solve the technical problem of the present invention is: a compression negative pressure vacuum system comprising a sheet-like compressed foam material layer which can be expanded after liquid absorption, and a glue film located on the outer side surface of the compressed foam material layer, the adhesive film Adhering to the extent of extending out of the compressed foam material to form a flap attached to the outer surface of the fixed surface, the flap is attached to the inner surface of the flap, the outer side of the layer of compressed foam material and the outer surface of the fixed edge A first adsorption chamber is formed between the surfaces, and the volume of the first adsorption chamber increases as the compressed foam material layer expands after aspiration.

As a further improvement of the above technical solution, the compressed foam material layer is swelled and expanded, and the compressed foam material layer is arranged in a three-dimensional intercommunication adsorption channel, and the adsorption channel forms a third adsorption cavity, and the volume of the third adsorption cavity is The layer of compressed foam material expands and then increases.

As a further improvement of the above technical solution, the compressed foam material layer is provided with a plurality of adsorption holes penetrating the upper and lower end faces of the compressed foam material layer, and one end of each of the adsorption holes is formed by being blocked by the adhesive film. The second adsorption chamber has an open end of the adsorption hole in contact with an outer surface of the fixing portion surrounded by the appendage, and the volume of the second adsorption chamber increases as the compressed foam material layer expands after being absorbed by the liquid.

As a further improvement of the above technical solution, after the compressed foam material layer is liquid-absorbed, the second adsorption chamber communicates with the first adsorption chamber through the third adsorption chamber.

As a further improvement of the above technical solution, the cross-sectional shape of the adsorption hole is one of a circle, a rectangle, an ellipse, a trapezoid, a semicircle, a semi-ellipse or a triangle.

As a further improvement of the above technical solution, the thickness of the compressed foam layer after liquid swell expansion is equal to 3 to 20 times the thickness of the compressed foam layer before the liquid absorbing liquid is expanded.

As a further improvement of the above technical solution, the volume of the first adsorption chamber after the liquid-swell expansion of the compressed foam material layer is equal to 2 to 10 times the volume of the first adsorption chamber before the liquid-absorbent expansion of the compressed foam material layer.

As a further improvement of the above technical solution, the volume of the second adsorption chamber after the liquid-swell expansion of the compressed foam material layer is equal to 2 to 10 times the volume of the second adsorption chamber before the liquid-absorbent expansion of the compressed foam material layer.

As a further improvement of the above technical solution, the compressed foam material layer is a layer of compressed superabsorbent polyvinyl alcohol material.

The invention has the beneficial effects that the first adsorption chamber is formed between the inner surface of the flap, the outer side surface of the compressed foam material layer and the outer surface of the fixed portion after the flap is attached to the fixing portion, and the compressed foam layer is sucked. After the liquid expands, the adhesive film is gradually raised, the closed space of the first adsorption chamber is getting larger and larger, the air is getting thinner and thinner, the partial vacuum is formed, and the partial vacuum of the compressed foam layer is the position or wound to be cleaned. The wound surface and the like must form a negative pressure difference. Because the pressure difference is formed, the present invention inevitably produces a 24 hour uninterrupted continuous negative pressure suction action for the position of the skin and the like, and achieves the effect of gradually removing the dirt in the deep layer of the skin or pumping the wound exudate; similarly, There is also the role of wound granulation soft tissue gradually swelling and promoting local blood circulation.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is apparent that the described drawings are only a part of the embodiments of the present invention, and not all of the embodiments, and those skilled in the art can obtain other designs and drawings according to the drawings without any creative work.

Figure 1 is a schematic view showing the structure of the present invention by attaching a flap to the outer surface of the fixing portion;

Fig. 2 is a schematic view showing the structure of the compressed foam layer in the present invention after liquid swell expansion.

detailed description

The concept, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments, based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The scope of protection of the present invention. In addition, all the coupling/joining relationships mentioned in the text are not directly connected to the components, but rather may constitute a better coupling structure by adding or reducing the coupling accessories according to the specific implementation.

1 to 2, a compression negative pressure vacuum system includes a sheet-like compressed foam material layer 1 which can be expanded after liquid absorption, and an adhesive film 2 on the outer side surface of the compressed foam material layer 1, the adhesive film 2 The appendages 20 are attached to the outer surface of the fixed portion after extending outwardly from the range of the expanded foam material. The appendages 20 are attached to the inner surface of the appendages 20 and the outer side of the layer of compressed foam material 1 after being attached to the fixing portion. And forming a first adsorption chamber 3 between the outer surfaces of the fixed portion, the volume of the first adsorption chamber 3 increasing as the compressed foam material layer 1 expands after being absorbed by the liquid.

A first adsorption chamber 3 is formed between the inner surface of the approximating blade 20, the outer side surface of the compressed foam material layer 1 and the outer surface of the fixing portion after the appendage wing 20 is attached to the fixing portion, and the compressed foam material layer 1 is liquid-swelled and expanded. The adhesive film 2 is gradually raised, the closed space of the first adsorption chamber 3 is getting larger and larger, a partial vacuum is formed, and the partial vacuum of the compressed foam material layer 1 generates a long-term continuous negative pressure suction effect on the wound surface and the deep soft tissue thereof. Wound, wound exudate suction, the granulation soft tissue of the wound gradually reduces swelling and promotes the effect of local blood circulation. Similarly, the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction on the surface requiring descaling and its deep soft tissue, and gradually discharges the dirt in the deep layer. In addition, the present invention can generate a negative pressure without an external negative pressure source, and functions to vacuum adsorb the liquid and remove deep dirt.

As a further improvement of the above technical solution, the compressed foam material layer 1 is liquid-swelled and the compressed foam material layer 1 is arranged in a three-dimensionally-connected adsorption channel, and the adsorption channel forms a third adsorption chamber 5, the third adsorption chamber The volume of 5 increases as the compressed foam layer 1 expands after aspiration. The layer 1 of the compressed foam material expands after liquid absorption, and the adhesive film 2 is gradually raised. Except that the closed space of the first adsorption chamber 3 is larger and larger, a partial vacuum is formed, and the adsorption channel of the three-dimensional intercommunication inside the compressed foam layer 1 is gradually restored. The partial vacuum is further strengthened, and the partial vacuum of the compressed foam layer 1 exerts a long-term continuous negative pressure suction on the wound surface and the deep soft tissue, so as to achieve the wound and wound exudate suction, the granulation soft tissue of the wound gradually reduces swelling and promotes the blood circulation of the local blood. Effect. Similarly, the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction on the surface requiring descaling and its deep soft tissue, and gradually discharges the dirt in the deep layer.

Further, as a preferred embodiment, the compressed foam material layer 1 is provided with a plurality of adsorption holes penetrating the upper and lower end faces of the compressed foam material layer 1, and one end of each of the adsorption holes is blocked by the adhesive film 2 Forming a second adsorption chamber 4, the open end of the adsorption hole is in contact with the outer surface of the fixed portion surrounded by the appendage 20, and the volume of the second adsorption chamber 4 is aspirated along the layer of the compressed foam material 1. After expansion, it increases.

Further, as a preferred embodiment, after the compressed foam layer 1 is liquid-swelled, the second adsorption chamber 4 communicates with the first adsorption chamber 3 through the third adsorption chamber 5.

The layer 1 of the compressed foam material expands after liquid absorption, and the adhesive film 2 is gradually raised. Except that the closed space of the first adsorption chamber 3 is larger and larger, a partial vacuum is formed, and the adsorption channel of the three-dimensional intercommunication inside the compressed foam layer 1 is gradually restored. The partial vacuum is further strengthened. As the confined space of the second adsorption chamber 4 becomes larger and larger, the partial vacuum is greatly enhanced, and the partial vacuum of the compressed foam layer 1 generates long-term continuous vacuum suction on the wound surface and its deep soft tissue. Function, to achieve wound, wound exudate suction, wound granulation soft tissue gradually swelling and promote the effect of local blood circulation. Similarly, the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction on the surface requiring descaling and its deep soft tissue, and gradually discharges the dirt in the deep layer.

Further, as a preferred embodiment, the cross-sectional shape of the adsorption hole is one of a circular shape, a rectangular shape, an elliptical shape, a trapezoidal shape, a semicircular shape, a semi-elliptical shape, or a triangular shape.

Further, as a preferred embodiment, the thickness of the compressed foam material layer 1 after liquid swell expansion is equal to 3 to 20 times the thickness of the compressed foam material layer 1 before liquid absorbing expansion.

Further, as a preferred embodiment, the volume of the first adsorption chamber 3 after the liquid-swelling of the compressed foam material layer 1 is equal to 2 to 10 times the volume of the first adsorption chamber 3 before the liquid-swell expansion of the compressed foam material layer 1.

Further, as a preferred embodiment, the volume of the second adsorption chamber 4 after the liquid-swell expansion of the compressed foam material layer 1 is equal to 2 to 10 times the volume of the second adsorption chamber 4 before the liquid-absorbent expansion of the compressed foam material layer 1.

Further, as a preferred embodiment, the compressed foam material layer 1 is a layer of compressed superabsorbent polyvinyl alcohol material, which has a "siphon effect", a "cylinder effect" and the like, and has a superabsorbent property. It has the effect of keeping the wound or wound in the best dry humidity.

In addition, in the process of not being able to seal the wound or to seal the wound, the present invention mainly utilizes its own special structure and has the design features of dry compression, large opening and liquid absorbing ability, and has a "cylinder effect", which generates a strong suction force. Drain the viscous liquid into the material. At the same time, the liquid or oozing blood flows into the material in real time and rapidly, and the surface tension formed by the liquid flow and the pressure difference at different positions of the wound surface are inevitably formed to form micro-power. In this way, 24 hours of continuous action, micro-power can also improve the blood circulation of the wound or wound, reduce swelling, promote the growth of epithelial cells or granulation.

For mixed type, deep second degree burn wounds, based on the partial vacuum negative pressure effect of the structure of the present invention, the wound exudate is inhaled by the whole dressing, and the clinician can reduce the debridement intensity during surgery; and reduce the number of dressing changes. Because the intensity of debridement and the number of dressing changes are reduced, the damage of "skin island cells" gradually formed in mixed-type and deep second-degree burn wounds is also reduced, which is conducive to the formation of "peel island" and its “Pie Island” gradually merged to cover the wound. Reduce clinical skin grafting and scar residue after recovery.

The above is a detailed description of the preferred embodiments of the present invention, but the invention is not limited to the embodiments, and various modifications and substitutions can be made by those skilled in the art without departing from the spirit of the invention. Such equivalent modifications or alternatives are intended to be included within the scope of the claims.

Claims

A compressed negative pressure vacuum system, comprising: a sheet-like compressed foam material layer which can be expanded after liquid absorption; and a viscose film which is located on the outer side surface of the compressed foam material layer, and the adhesive film is extended outwardly to extend the compressed foam material Forming a flap attached to the outer surface of the fixed portion, the flap is attached to the fixed portion, and the first surface is formed between the inner surface of the flap, the outer side surface of the layer of compressed foam material, and the outer surface of the fixed portion The cavity, the volume of the first adsorption chamber increases as the compressed foam material layer expands after aspiration.
The compressed vacuum vacuum system according to claim 1, wherein the compressed foam material layer is swelled and expanded, and the compressed foam material layer is arranged in a three-dimensionally-connected adsorption channel, and the adsorption channel forms a third adsorption chamber. The volume of the third adsorption chamber increases as the compressed foam material layer expands after aspiration.
The compressed vacuum vacuum system according to claim 2, wherein the compressed foam material layer is provided with a plurality of adsorption holes penetrating through the upper and lower end faces of the compressed foam material layer, and one end of each of the adsorption holes is Forming a second adsorption chamber after the adhesive film is sealed, the open end of the adsorption hole is in contact with an outer surface of the fixed portion surrounded by the appendage, and the volume of the second adsorption chamber is along with the compressed foam material The layer expands and then increases.
The compressed vacuum system according to claim 3, wherein the second adsorption chamber is in communication with the first adsorption chamber through the third adsorption chamber after the compressed foam layer is liquid-swelled.
The compressed vacuum vacuum system according to claim 3, wherein the adsorption hole has a cross-sectional shape of one of a circular shape, a rectangular shape, an elliptical shape, a trapezoidal shape, a semicircular shape, a semi-elliptical shape, or a triangular shape.
The compressed vacuum vacuum system according to claim 1 or 2 or 3 or 4 or 5, wherein the thickness of the compressed foam layer after liquid swell expansion is equal to 3 to 20 times before the liquid swell expansion of the compressed foam layer thickness of.
The compressed vacuum vacuum system according to claim 1 or 2 or 3 or 4 or 5, wherein the compressed foam material layer is liquid-swelled and the volume of the first adsorption chamber is equal to 2 to 10 times the compressed foam. The volume of the first adsorption chamber before the material layer absorbs liquid.
The compressed vacuum vacuum system according to claim 3 or 4 or 5, wherein the compressed foam material layer is liquid-swelled and the volume of the second adsorption chamber is equal to 2 to 10 times. The volume of the second adsorption chamber before the liquid expands.
A compressed vacuum vacuum system according to claim 1 or 2 or 3 or 4 or 5, wherein the layer of compressed foam material is a layer of compressed superabsorbent polyvinyl alcohol material.