CN217391248U

CN217391248U - Portable negative pressure suction device for infected wounds

Info

Publication number: CN217391248U
Application number: CN202220076425.0U
Authority: CN
Inventors: 陈泽洋; 汪欣; 王鹏远; 陈哲; 岳岩; 张钰洋
Original assignee: Peking University First Hospital
Current assignee: Peking University First Hospital
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-09-09
Anticipated expiration: 2032-01-12

Abstract

The utility model relates to a portable infection wound negative pressure suction device, including negative pressure subsides subassembly, negative pressure subsides subassembly includes drainage catheter, drainage sponge layer, aseptic gauze layer and aseptic pad pasting, wherein aseptic gauze layer, drainage sponge layer and aseptic pad pasting stack gradually and set up, aseptic gauze layer is directly pasted and is applied to human wound surface, the drainage sponge covers in aseptic gauze upper strata, aseptic pad pasting is located the superiors of drainage sponge layer, the edge part of aseptic pad pasting bonds with 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 sterile adhesive film, and the tail end of the drainage catheter is provided with a catheter connecting part; the catheter connecting portion of drainage catheter is connected to the one end of imbibition catheter, and the other end and the negative pressure suction device of imbibition catheter are connected, and the device can realize separating wound surface exudate drainage, can be to wound area adjusting device's drainage coverage area, has better commonality.

Description

Portable negative pressure suction device for infected wounds

Technical Field

The utility model belongs to the technical field of medical auxiliary assembly, a portable infection wound negative pressure suction device is related to.

Background

The negative pressure drainage technology is a method for treating superficial wound surfaces and deep drainage, can effectively remove secretions and necrotic tissues of lacuna or wound surfaces, and has a good treatment effect on diseases such as osteomyelitis and the like which are difficult to treat internally. The negative pressure closed drainage technology is a brand new treatment method that the wound surface with skin and soft tissue defects is covered or filled with medical sponge auxiliary materials containing drainage tubes, the drainage tubes are connected with a central negative pressure source after being closed by a biological semi-transparent film, and the wound surface healing is promoted by controllable negative pressure; however, in the current negative pressure closed drainage technology, the air permeability, the antibacterial property, the hygroscopicity and the comfort degree of contacting the skin are not high, and the exudate on the surface of the dressing can not be absorbed in time, so that the dressing on the sponge needs to be frequently replaced, and the risk of wound infection is increased. The negative pressure suction device for the wound is mostly arranged in a hospital, and the patient can be discharged after observing for several days in the hospital after the operation is completed, but the negative pressure suction device is still required to continuously suck negative pressure for later-stage wound healing conditioning so as to accelerate healing recovery.

Chinese patent document CN211561249U discloses a negative pressure suction device for absorbing wound exudate, which comprises an aseptic sticking film, wherein an anion foam dressing is applied to the central puncture point of the aseptic sticking film, a drainage tube interface is arranged from the central puncture point of the aseptic sticking film to the edge of the aseptic sticking film, the anion foam dressing is connected with a exudate absorption tube, a clip is arranged on the exudate absorption tube, a negative pressure tube connector is arranged at the other end of the exudate absorption tube, the negative pressure tube connector is connected with a negative pressure tube, the negative pressure tube is composed of a negative pressure tube cover and a negative pressure tube wall, and a scale mark is arranged on the negative pressure tube wall. The device can absorb and collect puncture abdominal fluid, avoids the abdominal fluid to cause the concomitant damage in the medical treatment process. However, when the device is used for wounds with different areas, the sterile adhesive film cannot be trimmed along with the wound areas, has no conformability, and has poor drainage effect when the wound areas are large.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model discloses a portable infection wound negative pressure suction device can realize improving drainage effect to wound surface exudate drainage separation, improves wound exudate collection efficiency, and the device is applicable to the wound of different areas, can have better commonality to wound area adjusting device's drainage coverage area to the device simple structure, the simple operation more is applicable to the patient and hand-carries.

The utility model discloses a portable infection wound negative pressure suction device, it is including being used for pasting negative pressure subsides subassembly, imbibition pipe and the negative pressure suction device on human wound surface, wherein negative pressure subsides subassembly includes drainage catheter, drainage sponge layer, aseptic gauze layer and aseptic pad pasting, wherein aseptic gauze layer, drainage sponge layer and aseptic pad pasting stack up the setting in proper order, aseptic gauze layer is directly pasted and is applied to human wound surface, the drainage sponge covers in aseptic gauze upper strata, aseptic pad pasting is located the superiors of drainage sponge layer, the edge part and the human skin bonding of aseptic pad pasting; 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.

Further, one side surface that aseptic pad pasting is pressed close to drainage sponge layer is equipped with many drainage grooves, and every drainage groove bottom is equipped with a plurality of through-holes that run through drainage sponge layer in thickness direction.

Furthermore, the drainage grooves comprise a plurality of transverse drainage grooves and at least one longitudinal drainage groove, and the transverse drainage grooves are parallel to the surface of the drainage sponge layer and are distributed at equal intervals; the longitudinal drainage grooves are perpendicular to the cross beam drainage grooves and communicated with all the transverse drainage grooves.

Furthermore, a part of the tube body of the drainage catheter is embedded in the longitudinal drainage groove, and a plurality of drainage holes are formed in the part, located in the longitudinal drainage groove, of the drainage catheter.

Further, the drainage catheter comprises a longitudinal drainage main pipe and a plurality of transverse drainage branch pipes, a transverse drainage branch pipe is embedded in each transverse drainage groove in the drainage sponge layer, a longitudinal drainage groove is arranged in the longitudinal drainage main pipe, and the longitudinal drainage catheter is vertically communicated with all the transverse drainage branch pipes.

Further, the negative pressure drainage device adopts an injector, and the imbibing catheter is communicated with an injection part of the injector.

Further, 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 the vacuum pump 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.

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

Compared with the prior art, the utility model, have following advantage:

1) the portable negative pressure suction device for the infected wound fixes the sterile gauze layer and the drainage sponge layer on the surface of the wound through the sterile pad pasting in the negative pressure pasting component, absorbs the exudate of the wound by utilizing the sterile gauze layer, and is separated through the drainage sponge layer and the connected drainage catheter, thereby avoiding the exudate from causing infection to the wound; the drainage groove structure on the drainage sponge layer is matched with the drainage catheter, so that the drainage effect is improved, and the collection efficiency of wound exudate is improved; meanwhile, the area shape of the drainage sponge layer can be cut along with the size of a wound, the negative pressure suction device can be used for treating wounds with different shapes, the shape conformity of the negative pressure patch assembly is improved, a negative pressure source of the negative pressure suction device in the embodiment can adopt a portable injection apparatus, a patient can conduct wound exudate drainage at any time, and the drainage operation is simple.

Drawings

FIG. 1 is a schematic structural view of a portable negative pressure suction device for infected wounds in the present embodiment;

FIG. 2 is a schematic structural diagram of a negative pressure applying assembly of the present embodiment;

fig. 3 is a schematic structural view of the drainage pipeline and the sponge layer in the embodiment.

Detailed Description

To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, 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 a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The embodiment is as follows:

as shown in fig. 1-2, in the present embodiment, a portable negative pressure suction device for infection wounds is disclosed, which includes a negative pressure patch assembly 1 for being adhered to a wound surface of a human body, a liquid suction catheter 2 and a negative pressure suction device 3, wherein the negative pressure patch assembly 1 includes a drainage catheter 103, a drainage sponge layer 102, a sterile gauze layer 104 and a sterile patch 101, wherein the sterile gauze layer 104, the drainage sponge layer 102 and the sterile patch 101 are sequentially stacked, the sterile gauze layer 104 is directly adhered to the wound surface of the human body, the drainage sponge layer 104 covers an upper layer of the sterile gauze layer 104, the sterile patch 101 is located at an uppermost layer of the drainage sponge layer 102, and an edge portion of the sterile patch 101 is adhered to the skin of the human body; 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 adhesive film 101, and the tail end of the drainage catheter is provided with a catheter connecting part; one end of the imbibition catheter 2 is connected with the catheter connecting part of the drainage catheter 103, and the other end of the imbibition catheter 2 is connected with the negative pressure suction device 3.

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

Aseptic gauze layer 104 adopts absorbent cotton gauze to make, has the characteristics that water absorption is strong, very easily absorbs the liquid that skin surface or wound exude, adopts aseptic gauze as the adsorbed layer with skin direct contact in this application, and the wound exudate is by aseptic gauze absorption back, through the hole in the gauze, in infiltration drainage sponge layer 102, drainage sponge layer 102 adopts polyvinyl alcohol medical grade micropore sponge in this application, and this sponge is a surface very soft macromolecular material that can completely natural degradation when contacting with the human body that the imbibition performance is excellent. The excellent liquid absorption performance is shown not only in a faster liquid absorption rate, but also in an ultrastrong liquid absorption multiplying power. Consequently, through the drainage sponge that adopts above-mentioned material in this application, as the next grade structure of aseptic gauze layer 104, the adsorbed exudate of aseptic gauze layer 104 can further permeate the drainage sponge layer 102 of polyvinyl alcohol material, through drainage sponge layer 102 temporary storage exudate to keep aseptic gauze to have the exudate to gather, prevent wound secondary infection.

Furthermore, as shown in fig. 3, the drainage grooves comprise 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 longitudinal drainage slots 1021 are perpendicular to the cross-beam drainage slots, and the longitudinal drainage slots 1021 communicate with all of the transverse drainage slots 1022. Part of the tube body of the drainage tube 103 is embedded in the longitudinal drainage groove 1021, and a plurality of drainage holes are formed in the part, located in the longitudinal drainage groove 1021, of the drainage tube 103. The purpose that sets up the drainage groove in drainage sponge layer 102 is mainly used for cooperating drainage catheter 103 to collect the exudate in collecing the drainage sponge, collects to the drainage groove back through the exudate with in the drainage sponge space, utilizes drainage tube to concentrate the discharge with the exudate.

The alternative is, drainage catheter 103 still can set up to a vertical drainage person in charge and many horizontal drainage branch pipes, every horizontal drainage groove 1022 is embedded to have a horizontal drainage branch pipe in the drainage sponge layer 102, place in vertical drainage person in charge in a vertical drainage groove 1021, vertical drainage catheter 103 communicates all horizontal drainage branch pipes perpendicularly. The drainage catheter 103 structure can increase the contact area of the drainage catheter 103 and the drainage sponge layer 102, and further improve the drainage efficiency.

More specifically, in the present embodiment, the negative pressure suction device 3 is a syringe, and the liquid suction catheter 2 communicates with an injection portion of the syringe. Connect imbibition pipe 2 through the syringe and can take the exudate out, its operation is comparatively simple, and the syringe is as common small-size medical equipment, and the patient of being convenient for on the one hand obtains, and on the other hand equipment volume is less, can be convenient for the patient and hand-carry, and the portability is better, and the device still can be suitable for non-professional to operate, and this mode is applicable to intermittent type formula drainage structure. In addition, alternatively, the negative pressure suction device 3 may further adopt a vacuum pump and a liquid storage tank, the vacuum pump is communicated with the liquid storage tank, and the vacuum pump is used for pumping air inside the liquid storage tank and keeping the inside 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 2. This structure utilizes small-size electric vacuum pump to keep the liquid storage tank body inside to be in the negative pressure state, and consequently sustainable the maintenance pastes the effusion of subassembly 1 to the negative pressure and pumps, and this structure is applicable to the great wound of volume that stretches out, in addition the side of liquid storage tank is equipped with the connecting band, the connecting band can be connected liquid storage tank and human fixed connection, and this connection structure can be fixed liquid storage tank and human being to the patient walks about at will, has more the flexibility.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.

Claims

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.