WO2018103180A1 - Low-vacuum precision control system for wound - Google Patents

Abstract

A low-vacuum precision control system for a wound, comprising: a vacuum pump (1); a liquid bottle (3); a suction catheter (4); a drainage dressing layer (5); a medical film (6); a water-sealed bottle (9); and an air inlet pipe (10). The suction catheter (4) has another end thereof directly or indirectly communicated with a three-dimensional intercommunicated structure of the drainage dressing layer (5). The water-sealed bottle (9) is directly or indirectly communicated with the three-dimensional intercommunicated structure of the drainage dressing layer (5) via a water-pressure conduit (8); the water-sealed bottle (9) has a liquid (11) filled therein and the liquid (11) occupies 20% to 70% of a volume of the water-sealed bottle (9). The water-pressure conduit (8) has one end thereof extended into an internal portion of the water-sealed bottle (9) from an upper-end surface of the water-sealed bottle (9), in which a terminal end of the water-pressure conduit (8) is located above a liquid surface of the liquid (11). The air inlet pipe (10) has both ends thereof open-ended, and one end of the air inlet pipe (10) is inserted, from the upper end of the water-sealed bottle (9), into the internal portion of the water-sealed bottle (9) and extended to a bottom portion of the water-sealed bottle (9). An internal pressure of the drainage dressing layer (5) can be visually observed via the water-sealed bottle (9), and if the internal pressure of the drainage dressing layer (5) exceeds a set pressure of the water-sealed bottle (9), an external gas can enter a wound surface internal portion via the air inlet pipe (10), the water-sealed bottle (9) and the water-pressure conduit (8), thus relieving the internal pressure on the wound.

Description

 Wound micro vacuum precise control system

Technical field

The invention relates to a medical device, in particular to a wound micro vacuum precise control 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 only 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 wound stickers for suction suction flow, which absorb the liquid on the surface of the wound and suck out the necrotic tissue deep in the wound, but these wounds require an external electric negative pressure source because of the electric negative pressure source. For reasons such as flow rate and power, when the clinical electric negative pressure source is used, the negative pressure value is at least 10-kpa. Through a large number of laboratory experiments, the negative pressure display of the electric negative pressure source shows the magnitude of the negative pressure, which is approximately equal to the actual negative pressure value of the wound surface. As a result, the pressure actually affected by the wound surface cannot be well controlled, especially the pressure. Excessively large, strong suction can cause damage to the newborn epithelium, skin island, granulation tissue, etc., and the wound that would otherwise be naturally healed requires skin grafting. Therefore, there is a need for a precise micro-vacuum control system that can accurately control the actual negative pressure of the wound to less than 5KPa.

Summary of the invention

The object of the present invention is to provide a wound micro vacuum precision control system.

The solution to solve the technical problem of the present invention is: a wound micro-vacuum precise control system, comprising a vacuum pump, a liquid storage bottle, a suction catheter with one end communicating with the inside of the liquid storage bottle, and a drainage dressing layer for attaching to the wound surface. a medical film on the upper surface of the drainage dressing layer, a water-sealed bottle, and an intake pipe inserted into the interior of the water-sealed bottle at one end, and the other end of the suction pipe is directly or indirectly connected to the three-dimensional interpenetrating structure of the drainage dressing layer, the vacuum pump The water seal bottle is directly or indirectly connected to the three-dimensional interpenetrating structure of the drainage dressing layer through the first pipe and the liquid storage bottle, and the water seal bottle contains the liquid inside, and the liquid accounts for 0.2~0.7 of the water seal bottle. a volume, one end of the hydraulic conduit extends from the upper end surface of the water seal bottle into the interior of the water seal bottle, and the end of the water pressure conduit is located above the liquid level, the two ends of the intake pipe are open, one end of the intake pipe Insert from the upper end of the water-sealed bottle into the interior of the water-sealed bottle and extend to the bottom of the water-sealed bottle.

As a further improvement of the above technical solution, the suction catheter is in communication with the three-dimensional interpenetrating structure of the drainage dressing layer through at least one disc body, and the hydraulic pressure conduit is in communication with the three-dimensional intercommunication structure of the drainage dressing layer through at least one disc body.

As a further improvement of the above technical solution, the suction duct and the hydraulic pressure conduit share a disk body and a three-dimensional intercommunication structure of the drainage dressing layer.

As a further improvement of the above technical solution, the end of the water pressure conduit located in the water seal bottle is flush with the upper inner side surface of the water seal bottle; or the end of the water pressure conduit located in the water seal bottle and the water seal The difference between the upper inner sides of the bottles is 1~5mm.

As a further improvement of the above technical solution, the outer surface of the intake pipe is arranged with a 0.5 KPa line, a 1 KPa line, a 2 KPa line, and a 3 KPa line in this order.

As a further improvement of the above technical solution, the medical film is formed on the periphery of the drainage dressing to form an appendage which can be attached to the outer skin surface of the edge of the wound surface.

As a further improvement of the above technical solution, a pressure gauge is mounted on the first pipe.

As a further improvement of the above technical solution, the liquid accounts for a volume of 0.5 or 0.6 of the water-sealed bottle.

The invention has the beneficial effects that: by setting a water-sealed bottle, the pressure inside the drainage dressing layer can be visually observed through the water-sealing bottle, and if the pressure inside the drainage dressing layer exceeds the pressure set by the water-sealing bottle, the external gas passes through The trachea, water-sealed bottle and hydraulic conduit enter the inside of the wound to relieve the internal pressure of the wound and prevent the internal pressure of the wound from being too large to cause damage to the wounded new island.

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 of the structure of the present invention.

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.

Referring to Fig. 1, a wound micro-vacuum precise control system comprises a vacuum pump 1, a liquid storage bottle 3, a suction catheter 4 having one end communicating with the inside of the liquid storage bottle 3, a drainage dressing layer 5 for attaching to the wound surface, and The medical film 6 on the upper surface of the drainage dressing layer 5, the water seal bottle 9 and the intake pipe 10 at one end inserted into the water seal bottle 9, the other end of the suction pipe 4 directly or indirectly connected to the three-dimensional interpenetration structure of the drainage dressing layer 5 In connection, the vacuum pump 1 is connected to the liquid storage bottle 3 through the first pipe 2, and the water seal bottle 9 is directly or indirectly connected to the three-dimensional interpenetrating structure of the drainage dressing layer 5 through the water pressure pipe 8, and the water seal bottle 9 is internally filled. The liquid 11 and the water-sealed bottle 9 are filled with a liquid amount of a liquid level according to the actual need of the clinical wound treatment, and the liquid 11 accounts for a volume of 0.2 to 0.7 of the water-sealed bottle, and one end of the water-pressure pipe 8 is The upper end surface of the water seal bottle 9 extends into the interior of the water seal bottle 9, and the end of the water pressure pipe 8 is located above the liquid level of the liquid 11, the both ends of the intake pipe 10 are open, and one end of the intake pipe 10 is from the water seal bottle 9 The upper end is inserted into the interior of the water seal bottle 9 and extends to the bottom of the water seal bottle 9 unit.

By setting the water seal bottle 9, the pressure inside the drainage dressing layer 5 can be visually observed through the water seal bottle 9, and if the pressure inside the drainage dressing layer 5 exceeds the pressure set by the water seal bottle 9, the outside air passes through the intake pipe 10, water. The sealing bottle 9 and the hydraulic pressure conduit 8 enter the inside of the wound surface to relieve the internal pressure of the wound surface, thereby preventing the internal pressure of the wound from being excessively large and causing damage to the wounded new island.

Further as a preferred embodiment, the aspiration catheter 4 is in communication with the three-dimensional interpenetrating structure of the drainage dressing layer 5 via at least one disc body 7, the three-dimensional intercommunication of the hydraulic conduit 8 through the at least one disc body 7 and the drainage dressing layer 5. Structural connectivity.

Further as a preferred embodiment, the suction conduit 4 and the hydraulic conduit 8 share a disk body 7 in communication with the three-dimensional interpenetrating structure of the drainage dressing layer 5.

Further as a preferred embodiment, the end of the hydraulic conduit 8 located in the water seal bottle 9 is flush with the upper inner side of the water seal bottle 9; or the hydraulic conduit 8 located in the water seal bottle 9 The difference between the end and the upper inner side of the water seal bottle 9 is 1 to 5 mm.

Further, as a preferred embodiment, the outer surface of the intake pipe 10 is arranged with a 0.5 KPa line, a 1 KPa line, a 2 KPa line, and a 3 KPa line in the middle, and the 3 KPa line is located at the lowermost end of the intake pipe 10. The scale line of the outer surface of the intake pipe 10 can be set according to a specific situation. The scale line at the lowermost end of the intake pipe 10 is a warning line. When air bubbles appear in the water seal bottle 9, the air pressure inside the surface wound surface exceeds the pressure value set by the water seal bottle 9, and the working state of the vacuum pump 1 needs to be adjusted to reduce the pressure value in the wound surface.

Further, as a preferred embodiment, the medical film 6 is extended around the range of the drainage dressing to form an abutment that can be attached to the outer skin surface of the edge of the wound.

Further as a preferred embodiment, the pressure gauge 12 is mounted on the first pipe 2.

Further as a preferred embodiment, the liquid 11 occupies a volume of a water-sealed bottle of 90.5 or 0.6, in combination with a structure in which the end of the water pressure conduit 8 located in the water-sealing bottle 9 is flush with the upper inner side of the water-sealing bottle 9. Or; the difference between the end of the water pressure conduit 8 located in the water seal bottle 9 and the upper inner side of the water seal bottle 9 is 1 to 5 mm, which can effectively avoid the water seal bottle 9 when the pressure is too large. The liquid 11 enters the wound. The liquid 11 in the water-sealed bottle 9 is water.

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 (8)

The utility model relates to a wound micro-vacuum precise control system, which comprises a vacuum pump, a liquid storage bottle, a suction catheter which communicates with the inside of the liquid storage bottle at one end, a drainage dressing layer for attaching to the wound surface, and an upper surface of the drainage dressing layer. Medical film, water-sealed bottle and an intake pipe inserted into the interior of the water-sealed bottle at one end, the other end of the suction pipe is directly or indirectly connected to the three-dimensional interpenetrating structure of the drainage dressing layer, and the vacuum pump passes through the first pipe and the liquid storage The bottle is connected, and the water-sealed bottle is directly or indirectly connected to the three-dimensional interpenetrating structure of the drainage dressing layer through a hydraulic conduit, and the inside of the water-sealed bottle is filled with liquid, and the liquid occupies a volume of 0.2-0.7 of the water-sealed bottle, the water pressure One end of the conduit extends from the upper end surface of the water seal bottle into the interior of the water seal bottle, and the end of the water pressure conduit is located above the liquid level, the two ends of the intake pipe are open, and one end of the intake pipe is inserted from the upper end of the water seal bottle After reaching the inside of the water seal bottle, it extends to the bottom of the water seal bottle. The wound micro-vacuum precise control system according to claim 1, wherein the suction catheter communicates with the three-dimensional interpenetrating structure of the drainage dressing layer through at least one disc body, and the hydraulic conduit passes through at least one disc body and drainage. The three-dimensional interpenetration structure of the dressing layer is connected. The wound micro-vacuum precise control system according to claim 1 or 2, wherein the suction conduit and the hydraulic conduit share a three-dimensional intercommunication structure of the disc body and the drainage dressing layer. The wound micro-vacuum precise control system according to claim 1, wherein the end of the water pressure conduit located in the water seal bottle is flush with the upper inner side surface of the water seal bottle; or, the water seal bottle is located The difference between the end of the inner water pressure conduit and the upper inner side of the water seal bottle is 1 to 5 mm. The wound micro-vacuum precise control system according to claim 1, characterized in that: 0.5KPa line, 1KPa line, 2KPa line and 3KPa line are arranged in the middle of the outer surface of the intake pipe in this order. The wound micro-vacuum precise control system according to claim 1, wherein the medical film is formed to extend to the outer surface of the skin at the edge of the wound surface after extending the range of the drainage dressing. The wound micro-vacuum precise control system according to claim 1, wherein a pressure gauge is mounted on the first pipe. The wound micro-vacuum precise control system according to claim 1, wherein the liquid accounts for a volume of 0.5 or 0.6 of the water-sealed bottle.