CN217391248U - A portable negative pressure suction device for infected wounds - Google Patents

Abstract

The utility model relates to a portable negative pressure suction device for infected wounds, comprising a negative pressure sticking component, wherein the negative pressure sticking component comprises a drainage catheter, a drainage sponge layer, a sterile gauze layer and a sterile film, wherein the sterile gauze layer , the drainage sponge layer and the aseptic film are stacked successively, the aseptic gauze layer is directly applied to the wound surface of the human body, the drainage sponge is covered on the upper layer of the aseptic gauze, and the aseptic film is located on the uppermost layer of the drainage sponge layer, The edge of the aseptic film is bonded to the human skin; one end of the drainage catheter extends to the surface of the drainage sponge layer, the other end of the drainage catheter extends through the aseptic film and the end is provided with a catheter connection part; one end of the suction catheter The catheter connection part of the drainage catheter is connected, and the other end of the suction catheter is connected to the negative pressure suction device. The device can realize the separation of drainage and drainage of the exudate on the wound surface, and can adjust the drainage coverage area of the device according to the wound area, and has better universality. sex.

Description

A portable negative pressure suction device for infected wounds

technical field

The utility model belongs to the technical field of medical auxiliary equipment, and relates to a portable negative pressure suction device for infected wounds.

Background technique

Negative pressure drainage technology is a method for treating superficial wounds and for deep drainage. It can effectively remove secretions and necrotic tissue from cavities or wounds, and has a good therapeutic effect on internal diseases such as osteomyelitis that are difficult to treat. Negative pressure sealing and drainage technology refers to covering or filling the wounds with skin and soft tissue defects with medical sponge accessories containing drainage tubes, and then sealing them with biological translucent membranes, and then connecting the drainage tubes to the central negative pressure source, through the controllable negative pressure. It is a brand-new treatment method to promote wound healing; but the current negative pressure sealing drainage technology is not high in air permeability, antibacterial properties, hygroscopicity and comfort in contact with the skin, as well as the exudate on the dressing surface, It cannot be absorbed in time, and the dressing on the sponge needs to be changed frequently, which increases the risk of wound infection. In addition, most of the negative pressure suction devices used for wounds are currently installed in hospitals. Since the patient can be discharged after only a few days of observation in the hospital after the operation is completed, the wound healing and conditioning in the later stage still requires a negative pressure suction device for continuous negative pressure. Pressure suction to speed up the healing and recovery, and the existing negative pressure suction devices are mostly bulky and cannot be carried with the patient, and the equipment cost is high, which is not suitable for patients to use at home. A simple-to-operate negative pressure suction device that allows patients to self-drain wound exudate at home to accelerate wound recovery.

Chinese patent document CN211561249U discloses a negative pressure suction device for absorbing wound exudate, including a sterile film, an anionic foam dressing is applied at the center puncture point of the sterile film, and the center puncture point of the sterile film is There is a drainage tube interface from the position to the edge of the sterile film, the anionic foam dressing is connected with a liquid absorption tube, a clip is provided on the liquid absorption tube, and the other end of the liquid absorption tube is provided with a negative pressure A pipe joint, the negative pressure pipe joint is connected with a negative pressure pipe, the negative pressure pipe is composed of a negative pressure pipe pipe cover and a negative pressure pipe pipe wall, and a scale line is arranged on the pipe wall of the negative pressure pipe. The device can absorb and collect the punctured abdominal fluid, so as to avoid the concomitant injury caused by the abdominal fluid in the medical process. However, when the device is used for wounds of different areas, the sterile film cannot be trimmed with the wound area, and has no conformability, and when the wound area is large, the drainage effect will be poor.

Utility model content

In view of the above problems in the prior art, the utility model discloses a portable negative pressure suction device for infected wounds, which can realize the drainage and separation of the exudate on the surface of the wound, improve the drainage effect, and improve the collection efficiency of the wound exudate. It is suitable for wounds of different areas, and the drainage coverage area of the device can be adjusted according to the wound area, which has better versatility, and the device has a simple structure and convenient operation, and is more suitable for patients to carry around.

The utility model discloses a portable infection wound negative pressure suction device, which comprises a negative pressure sticking component for sticking on the surface of a human wound, a liquid suction conduit and a negative pressure suction device, wherein the negative pressure sticking component comprises a drainage conduit, a suction conduit and a negative pressure suction device. A drainage sponge layer, a sterile gauze layer and a sterile film, wherein the sterile gauze layer, the drainage sponge layer and the sterile film are stacked in sequence, and the sterile gauze layer is directly applied to the surface of the human wound, and the drainage sponge is Covered on the upper layer of sterile gauze, the sterile film is located on the top layer of the drainage sponge layer, and the edge of the sterile film is bonded to human skin; one end of the drainage catheter extends to the surface of the drainage sponge layer, and the drainage catheter The other end extends through the sterile film and the end is provided with a catheter connection part; one end of the suction catheter is connected to the catheter connection part of the drainage catheter, and the other end of the suction catheter is connected to the negative pressure suction device.

Further, the drainage sponge layer is provided with a plurality of drainage grooves on one side surface close to the sterile film, and the bottom of each drainage groove is provided with a plurality of through holes penetrating the drainage sponge layer in the thickness direction.

Further, the drainage groove includes a plurality of transverse drainage grooves and at least one longitudinal drainage groove, and the plurality of transverse drainage grooves are distributed on the surface of the drainage sponge layer in parallel and at equal intervals; the longitudinal drainage grooves are perpendicular to the beam drainage grooves, and the The vertical drainage channel communicates with all the lateral drainage channels.

Further, a part of the pipe body of the drainage conduit is embedded in the longitudinal drainage groove, and the part of the drainage conduit located in the longitudinal drainage groove is provided with a plurality of drainage holes.

Further, the drainage conduit comprises a longitudinal drainage main pipe and a plurality of transverse drainage branch pipes, each transverse drainage groove in the drainage sponge layer is embedded with a transverse drainage branch pipe, and the longitudinal drainage main pipe is built in a longitudinal drainage groove. , the longitudinal drainage conduit vertically communicates with all lateral drainage branch pipes.

Further, the negative pressure drainage device adopts a syringe, and the suction conduit communicates with the injection part of the syringe.

Further, the negative pressure drainage device includes a vacuum pump and a liquid storage tank, the vacuum pump is communicated with the liquid storage tank, and the vacuum pump is used to extract the air inside the liquid storage tank to keep the inside of the liquid storage tank lower than the outside air pressure; The liquid tank is provided with a liquid inlet, and the liquid inlet communicates with the liquid suction conduit.

Further, the side of the liquid storage tank is provided with a connecting belt, and the connecting belt fixedly connects the liquid storage tank and the human body.

Compared with the prior art, the utility model has the following advantages:

1) The portable infection wound negative pressure suction device in the utility model fixes the sterile gauze layer and the drainage sponge layer on the wound surface through the sterile film in the negative pressure sticking assembly, and utilizes the sterile gauze layer to absorb the exudate of the wound , and is separated by the drainage sponge layer and the connected drainage catheter, which can avoid the infection of the wound caused by the exudate; and the drainage groove structure on the drainage sponge layer is used to cooperate with the drainage catheter to improve the drainage effect and improve the wound leakage. Liquid collection efficiency; at the same time, the area and shape of the drainage sponge layer can be cut according to the size of the wound, which can be used for wound treatment of different shapes, which improves the conformality of the negative pressure sticking component. In this embodiment, the negative pressure source of the negative pressure suction device Portable injection equipment can be used, so that patients can drain wound exudate at any time, and the drainage operation is simple.

Description of drawings

1 is a schematic structural diagram of a portable infection wound negative pressure suction device in the present embodiment;

Fig. 2 is the structural representation of the negative pressure sticking assembly in the present embodiment;

FIG. 3 is a schematic structural diagram of the drainage pipeline and the sponge layer in this embodiment.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments of the present invention are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example:

As shown in Figures 1-2, this embodiment discloses a portable negative pressure suction device for infected wounds, which includes a negative pressure sticking assembly 1 for sticking on the surface of a human wound, a liquid suction catheter 2 and a negative pressure suction device 3, The negative pressure patch assembly 1 includes a drainage catheter 103, a drainage sponge layer 102, a sterile gauze layer 104 and a sterile film 101, wherein the sterile gauze layer 104, the drainage sponge layer 102 and the sterile film 101 are stacked in sequence. , the sterile gauze layer 104 is directly applied to the wound surface of the human body, the drainage sponge is covered on the upper layer of the sterile gauze layer 104, the sterile film 101 is located on the uppermost layer of the drainage sponge layer 102, and the sterile film 101 The edge of the drainage catheter 103 is bonded to the human skin; one end of the drainage catheter 103 extends to the surface of the drainage sponge layer 102, the other end of the drainage catheter 103 extends through the sterile film 101 and the end is provided with a catheter connection part; the suction catheter 2 One end of the pipe is connected to the pipe connection part of the drainage pipe 103 , and the other end of the suction pipe 2 is connected to the negative pressure suction device 3 .

In order to improve the drainage efficiency of the negative pressure patch assembly 1, the drainage sponge layer 102 is provided with a plurality of drainage grooves on one side surface close to the sterile film 101, and the bottom of each drainage groove is provided with a plurality of drainage sponge layers 102 in the thickness direction. through holes 1023, as shown in FIG. 2 .

The sterile gauze layer 104 is made of absorbent cotton gauze, which has the characteristics of strong water absorption and can easily absorb the liquid exuded from the skin surface or wound. In this application, sterile gauze is used as the adsorption layer in direct contact with the skin. After being adsorbed by the sterile gauze, it penetrates into the drainage sponge layer 102 through the pores in the gauze. In this application, the drainage sponge layer 102 adopts a polyvinyl alcohol medical grade microporous sponge, which is a kind of excellent liquid absorption performance and is in contact with the human body. It is a completely naturally degradable polymer material with an extremely soft surface. Its excellent liquid absorption performance is not only reflected in the fast liquid absorption rate, but also in its super liquid absorption rate. Therefore, in this application, by using the drainage sponge of the above-mentioned material as the next-level structure of the sterile gauze layer 104, the exudate absorbed by the sterile gauze layer 104 can further penetrate into the drainage sponge layer 102 made of polyvinyl alcohol, and the drainage sponge layer 102 can be drained through the drainage sponge. The sponge layer 102 temporarily stores exudate to keep sterile gauze free from accumulation of exudate and prevent secondary infection of the wound.

Further, as shown in FIG. 3 , the drainage groove includes a plurality of transverse drainage grooves 1022 and at least one longitudinal drainage groove 1021, and the plurality of transverse drainage grooves 1022 are distributed on the surface of the drainage sponge layer 102 in parallel and at equal intervals; The drainage grooves 1021 are perpendicular to the beam drainage grooves, and the longitudinal drainage grooves 1021 communicate with all the lateral drainage grooves 1022 . Wherein, part of the tube body of the drainage conduit 103 is embedded in the longitudinal drainage groove 1021 , and the portion of the drainage conduit 103 located in the longitudinal drainage groove 1021 is provided with a plurality of drainage holes. The purpose of setting the drainage groove in the drainage sponge layer 102 is mainly to cooperate with the drainage catheter 103 to collect the exudate in the drainage sponge. concentrated discharge.

Alternatively, the drainage conduit 103 can also be configured as a longitudinal drainage main pipe and a plurality of transverse drainage branch pipes, and each transverse drainage groove 1022 in the drainage sponge layer 102 is embedded with a transverse drainage branch pipe. The main pipe is built into a longitudinal drainage groove 1021, and the longitudinal drainage conduit 103 vertically communicates with all the lateral drainage branch pipes. The structure of the drainage conduit 103 can increase the contact area between the drainage conduit 103 and the drainage sponge layer 102, thereby improving the drainage efficiency.

In more detail, in this embodiment, the negative pressure suction device 3 adopts a syringe, and the suction conduit 2 communicates with the injection part of the syringe. The exudate can be drawn out by connecting the suction catheter 2 with a syringe, and the operation is relatively simple. As a common small medical device, the syringe is easy for patients to obtain on the one hand, and on the other hand, the device is small in size, which can be easily carried by the patient and is portable. Preferably, the device can also be operated by non-professionals, and this method is suitable for intermittent drainage structures. In addition, alternatively, the negative pressure suction device 3 can also use a vacuum pump and a liquid storage tank, the vacuum pump is communicated with the liquid storage tank, and the vacuum pump is used to extract the air inside the liquid storage tank to keep the inside of the liquid storage tank lower than the outside Air pressure; the liquid storage tank is provided with a liquid inlet, and the liquid inlet communicates with the suction conduit 2 . This structure uses a small electric vacuum pump to keep the inside of the liquid storage tank in a negative pressure state, so the exudate in the negative pressure patch assembly 1 can be continuously sucked. This structure is suitable for wounds with a large amount of protruding. The side of the liquid storage tank is provided with a connecting belt, and the connecting belt fixedly connects the liquid storage tank and the human body.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims (8)

1. A portable negative pressure suction device for infected wounds is characterized by comprising a negative pressure pasting component, a liquid suction catheter and a negative pressure suction device, wherein the negative pressure pasting component is used for being pasted on the surface of a human wound, the negative pressure pasting component comprises a drainage catheter, a drainage sponge layer, an aseptic gauze layer and an aseptic pasting film, the aseptic gauze layer, the drainage sponge layer and the aseptic pasting film are sequentially stacked, the aseptic gauze layer is directly pasted on the surface of the human wound, the drainage sponge layer covers the upper layer of the aseptic gauze, the aseptic pasting film is located on the uppermost layer of the drainage sponge layer, and the edge portion of the aseptic pasting film is adhered to the skin of a human body; one end of the drainage catheter extends to the surface of the drainage sponge layer, the other end of the drainage catheter extends through the sterile adhesive film, and the tail end of the drainage catheter is provided with a catheter connecting part; one end of the imbibition catheter is connected with the catheter connecting part of the drainage catheter, and the other end of the imbibition catheter is connected with the negative pressure suction device.

2. The portable negative pressure suction device for the infected wounds is characterized in that a plurality of drainage grooves are formed in the surface, close to the sterile adhesive film, of one side of the drainage sponge layer, and a plurality of through holes penetrating through the drainage sponge layer in the thickness direction are formed in the bottom of each drainage groove.

3. The portable negative pressure suction device for the infected wound according to claim 2, wherein the drainage grooves comprise a plurality of transverse drainage grooves and at least one longitudinal drainage groove, and the plurality of transverse drainage grooves are distributed on the surface of the drainage sponge layer in parallel and at equal intervals; the longitudinal drainage grooves are perpendicular to the cross beam drainage grooves and communicated with all the transverse drainage grooves.

4. The portable negative pressure suction device for infected wounds according to claim 3, wherein a part of the tube body of the drainage catheter is embedded in the longitudinal drainage groove, and a plurality of drainage holes are arranged on the part of the drainage catheter, which is positioned in the longitudinal drainage groove.

5. The portable negative pressure suction device for the infected wound according to claim 3, wherein the drainage catheter comprises a longitudinal drainage main pipe and a plurality of transverse drainage branch pipes, each transverse drainage groove in the drainage sponge layer is embedded with one transverse drainage branch pipe, the longitudinal drainage main pipe is arranged in one longitudinal drainage groove, and the longitudinal drainage catheter is vertically communicated with all the transverse drainage branch pipes.

6. The portable negative pressure aspiration device for infected wounds of claim 1, wherein the negative pressure drainage device adopts a syringe, and the suction catheter is communicated with an injection part of the syringe.

7. The portable negative pressure aspiration device for infected wounds of claim 1, wherein the negative pressure drainage device comprises a vacuum pump and a liquid storage tank, the vacuum pump is communicated with the liquid storage tank and is used for pumping air in the liquid storage tank and keeping the interior of the liquid storage tank lower than the external air pressure; the liquid storage tank is provided with a liquid inlet which is communicated with the liquid suction conduit.

8. The portable negative pressure suction device for infected wounds as claimed in claim 7, wherein a connecting band is provided on the side of the liquid storage tank, and the connecting band fixedly connects the liquid storage tank with the human body.

Images