Negative pressure treatment device for trauma

Abstract

A trauma negative pressure treatment device, relating to medical equipment, is provided with a sponge and an embedded body, at least two drainage cavities are provided on the upper part of the embedded body, at least two flushing cavities are provided on the lower side of the drainage cavity, drainage holes are provided on the upper side of the drainage cavity, flushing holes are provided on the lower side of the flushing cavity, two embedded bodies are embedded in the sponge, a flushing seat and a drainage seat are provided on the rear end of the embedded body, a flushing collection cavity connected to the flushing cavity is provided in the flushing seat, and a drainage collection cavity connected to the drainage cavity is provided in the drainage seat; the two drainage collection cavities are respectively connected to the first channel end and the second channel end of the T-type three-way ball valve through a collection pipe, the two flushing collection cavities are respectively connected to the first channel end of the L-type three-way ball valve through a flushing pipe, and the second channel end of the L-type three-way ball valve is connected to the collection pipe on the same embedded body. The invention has the advantages of simple structure, convenient use, no need to close the negative pressure drainage tube during flushing, no negative pressure leakage on the wound surface, safety and reliability, good flushing effect, etc.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a trauma negative pressure treatment device with a simple structure, easy use, no need to close a negative pressure drainage tube during flushing, no negative pressure leakage on the wound surface, safety and reliability, and good flushing effect. Background Art

[0002] We know that negative pressure therapy for trauma was proposed by Wim Fleischman of ULM University in Germany in 1992 and has been successfully applied in clinical practice, achieving good therapeutic effects. Professor Qiu Huade introduced this technology into China in 1994. After years of development, this technology has been widely used in general surgery, burns, traumatology and other departments. A large number of literatures have confirmed that negative pressure therapy for trauma can effectively promote wound healing and reduce the incidence of infection.

[0003] Existing trauma negative pressure treatment technology includes components such as sponges, drainage tubes, flushing tubes, and sealing films, wherein the drainage tube is buried in a porous sponge, the flushing tube is located in the drainage tube or is independently buried in the sponge, the sponge is sealed with a sealing film to isolate it from the outside world, drainage is performed through the drainage tube, and the sponge is flushed and moistened through the flushing tube.

[0004] The existing negative pressure trauma treatment devices have the following shortcomings: the flushing tube penetrates into the drainage tube or the two are relatively close to each other. When flushing and wetting are performed through the flushing tube, the drainage tube needs to be closed, otherwise the flushing liquid cannot fully infiltrate the sponge and is directly sucked away by the drainage tube, resulting in poor flushing and wetting effects. When the drainage tube is closed for flushing, negative pressure exists in the sponge. When the sealing effect of the drainage tube is poor or there is a minor sealing failure during use, negative pressure leakage is likely to occur on the wound surface, increasing the risk of wound infection and poor safety. Summary of the invention

[0005] The purpose of the present invention is to solve the unreasonableness of the above-mentioned existing trauma negative pressure treatment devices and to provide a trauma negative pressure treatment device with simple structure, easy use, no need to close the negative pressure drainage tube during flushing, no negative pressure leakage on the wound surface, safe and reliable, and good flushing and wetting effect.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A trauma negative pressure treatment device is provided with a sponge, characterized in that: a flat strip-shaped embedded main body is provided, at least two drainage cavities are provided laterally on the upper part of the embedded main body, at least two flushing cavities are provided laterally on the lower part of the embedded main body below the drainage cavity, drainage holes are provided on the upper side of the drainage cavity, flushing holes are provided on the lower side of the flushing cavity, two embedded main bodies are embedded in parallel in the sponge, a flushing seat and a drainage seat are provided on the rear ends of the two embedded main bodies on the rear side of the sponge, a flushing collection cavity is provided in the flushing seat, a drainage collection cavity is provided in the drainage seat, and the flushing collection cavity and Each flushing cavity is connected, and the drainage collecting cavity is connected to each drainage cavity; the drainage collecting cavities of the two drainage seats on the two embedded bodies are respectively connected to the first channel end and the second channel end of the T-type three-way ball valve through a collecting pipe, and the third channel end of the T-type three-way ball valve is a negative pressure access end; the flushing collecting cavities of the two flushing seats on the two embedded bodies are respectively connected to the first channel end of the L-type three-way ball valve through a flushing pipe, and the second channel end of the L-type three-way ball valve is connected to the collecting pipe on the same embedded body, and the third channel end of the L-type three-way ball valve is a flushing liquid access end.

[0008] The embedded body of the present invention has a rectangular cross section, and the length of the rectangle is at least twice the width. The embedded body will not rotate in the sponge, and the directions of the flushing holes and the drainage holes are not easily changed by force during use, so the treatment effect is good. The sponge is a non-functional sponge made of polyvinyl alcohol.

[0009] The upper part of the embedded body of the present invention has three drainage cavities evenly distributed in the horizontal direction and four flushing cavities evenly distributed in the horizontal direction and parallel to the drainage cavity in the lower part of the embedded body below the drainage cavity. The cross section of the embedded body is rectangular, and the length of the rectangle is twice the width.

[0010] The sponge described in the present invention is in the shape of a rectangular sheet, and a embedding groove arranged in the front-to-back direction and open at the rear end is arranged in the sponge, and the embedding body is inserted into the embedding groove through the embedding groove opening at the rear end of the sponge.

[0011] When the present invention is used, the sponge is attached to the wound surface, and then the negative pressure access end is connected to the negative pressure source or the collection container with negative pressure, and the flushing liquid access end is connected to the flexible flushing liquid bag or connected to the flushing liquid container through a pressurizing device; the sponge is sealed with a sealing film to isolate it from the outside world. During conventional negative pressure drainage, the T-type three-way ball valve is manipulated to connect the first channel, the second channel and the third channel, and the drainage switch of the negative pressure source or the collection container with negative pressure is turned on for suction and drainage treatment; during conventional negative pressure drainage, the L-type three-way ball valve can be controlled to connect the first channel with the second channel, and negative pressure is generated in the flushing tube and the flushing cavity to assist in drainage of the affected area. There are drainage holes on both the upper and lower sides of the embedded main body, which increases the direction and position of the negative pressure drainage points and the drainage holes, and strengthens the drainage effect. When the sponge is dry and needs to be moistened or is partially blocked by solidified exudate and needs to be flushed, the two L-type three-way ball valves are controlled to connect the first channel with the third channel, the position of the flexible flushing liquid bag is raised or the pressurizing device (flushing pump) is operated, and the flushing liquid is injected into the flushing cavity and flows out from the flushing hole to moisten the sponge. At this time, the flushing liquid enters the sponge from the flushing cavity and enters the drainage cavity from the drainage hole on the upper side through the shortest distance; the T-type three-way ball valve is controlled to connect the first channel with the third channel and close the second channel, and only one buried body performs negative pressure drainage. The flushing liquid flowing out of the flushing hole of the other buried body will fully moisten the sponge, dissolve the flushing blockage, and then enter the drainage cavity and be discharged from the drainage hole of the buried body performing negative pressure drainage. After moistening and flushing for a period of time, the T-type three-way ball valve is controlled to connect the second channel with the third channel to perform reverse moistening and flushing; the L-type three-way ball valve on the buried body performing negative pressure drainage can be closed (the channels are closed), and the buried body only performs negative pressure drainage. The present invention has excellent wetting and flushing effects on the whole sponge; during the wetting and flushing process, the negative pressure in the negative pressure drainage cavity can be adjusted to make the wetting and flushing effects better. During the wetting and flushing process, the negative pressure drainage process of the present invention is not interrupted, the sponge is always in a negative pressure drainage state, the wound surface is not prone to negative pressure leakage, the risk of wound infection is reduced, and the safety is high. Through the mutual coordination, connection and use of a T-type three-way ball valve and two L-type three-way ball valves, the present invention has the advantages of simple structure, convenient use, no need to close the negative pressure drainage tube during flushing, no negative pressure leakage on the wound surface, safety and reliability, good flushing and wetting effect, etc. The flushing cavity and flushing hole can be controlled by controlling the L-type three-way ball valve to realize the conversion of flushing and negative pressure drainage treatment. After the sponge on the lower side of the buried main body is wetted and flushed, it is immediately subjected to close-range negative pressure drainage, which can quickly dissolve the solidified blockage of the exudate, and the flushing efficiency is high and the effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the connection structure among the embedded main body, the flushing seat, the drainage seat, the collecting pipe, the flushing pipe, the T-type three-way ball valve and the L-type three-way ball valve in the present invention.

[0015] Figure 3 yes Figure 2 AA cross-section diagram. DETAILED DESCRIPTION

[0016] like Figure 1-Figure 3The trauma negative pressure treatment device shown is provided with a sponge 1, which is characterized by a flat strip embedded body 3 with a rectangular cross section, and the length of the rectangle of the cross section of the embedded body 3 is twice the width. The embedded body 3 will not rotate in the sponge, and the direction of the flushing hole and the drainage hole is not easily changed by force during use, and the treatment effect is good. The sponge 1 is a non-functional sponge made of polyvinyl alcohol. Three drainage cavities 10 are evenly distributed in the transverse direction in the upper part of the embedded main body 3 and are arranged along the longitudinal direction thereof. Four flushing cavities 12 are evenly distributed in the transverse direction in the lower part of the embedded main body 3 below the drainage cavity 10 and are parallel to the drainage cavity 10. Drainage holes 2 are evenly distributed in the longitudinal direction on the upper side of the drainage cavity 10, and flushing holes 11 are evenly distributed in the longitudinal direction on the lower side of the flushing cavity 12. Two embedded main bodies 3, namely a first embedded main body and a second embedded main body, are buried in the sponge 1 in parallel in the transverse direction (left-right direction). A first flushing seat 9, a first drainage seat 4, a second flushing seat, and a second drainage seat are respectively provided on the rear ends of the first embedded main body and the second embedded main body on the rear side of the sponge. A first flushing collection cavity is provided in the first flushing seat 9, and a first drainage collection cavity is provided in the first drainage seat 4; a second flushing collection cavity is provided in the second flushing seat, and a second drainage collection cavity is provided in the second drainage seat. The first flushing assembly chamber is connected to each flushing chamber 12 of the first buried body, and the second flushing assembly chamber is connected to each flushing chamber of the second buried body; the first drainage assembly chamber is connected to each drainage chamber 10 of the first buried body, and the second drainage assembly chamber is connected to each drainage chamber of the second buried body. The first drainage seat 4 and the first drainage assembly chamber and the second drainage assembly chamber of the first and second drainage seats on the first and second buried bodies are respectively connected to the first channel end and the second channel end of the T-type three-way ball valve 8 through the first collection pipe 7 and the second collection pipe, and the third channel end of the T-type three-way ball valve 8 is the negative pressure access end; the first flushing seat 9 and the first flushing seat on the first and second buried bodies are respectively connected to the first channel end of the first L-type three-way ball valve 6 and the second L-type three-way ball valve through the first flushing pipe 5 and the second flushing pipe, and the second channel ends of the first L-type three-way ball valve 6 and the second L-type three-way ball valve are respectively connected to the first collection pipe 7 and the second collection pipe, and the third channel ends of the two L-type three-way ball valves are the flushing liquid access ends. The sponge 1 is in the shape of a rectangular sheet, and a embedding groove arranged in the front-to-back direction and open at the rear end is provided in the sponge. The embedding body is inserted into the embedding groove through the embedding groove opening at the rear end of the sponge. The assembly is simple and convenient, and wrinkles and protrusions are not easily formed at the bottom of the sponge.

[0017] When the present invention is used, the sponge is attached to the wound surface, and then the negative pressure access end is connected to the negative pressure source or the collection container with negative pressure, and the flushing liquid access end is connected to the flushing liquid container through a pressurizing device; the sponge is sealed with a sealing film to isolate it from the outside world. During conventional negative pressure drainage, the T-type three-way ball valve is manipulated to connect the first channel, the second channel and the third channel, and the drainage switch of the negative pressure source or the collection container with negative pressure is turned on for suction and drainage treatment; during conventional negative pressure drainage, the L-type three-way ball valve can be controlled to connect the first channel with the second channel, and negative pressure is generated in the flushing tube and the flushing cavity to assist in drainage of the affected area. There are drainage holes on both the upper and lower sides of the embedded main body, which increases the direction and position of the negative pressure drainage points and the drainage holes, and strengthens the drainage effect. When the sponge is dry and needs to be moistened, or is partially blocked by solidified exudate and needs to be flushed, the first L-type three-way ball valve and the second L-type three-way ball valve are controlled to connect the first channel with the third channel, the position of the flexible flushing liquid bag is lifted or the pressurizing device (flushing pump) is operated, and the flushing liquid is injected into the flushing cavity and flows out from the flushing hole to moisten the sponge. At this time, the flushing liquid enters the sponge from the flushing cavity and enters the drainage cavity through the drainage hole on the upper side after passing the shortest distance; the T-type three-way ball valve is controlled to connect the first channel with the third channel and close the second channel, and only the first buried body performs negative pressure drainage. The flushing liquid flowing out of the flushing hole of the second buried body will fully moisten the sponge, dissolve the flushing blockage, and then enter the drainage cavity through the drainage hole of the first buried body and be discharged. After wetting and flushing for a period of time, the T-type three-way ball valve is controlled to connect the second channel with the third channel to perform reverse wetting and flushing. During operation, the L-type three-way ball valve on the embedded body that performs negative pressure drainage can be closed (all channels are closed), and the embedded body only performs negative pressure drainage. The present invention has excellent wetting and flushing effects on the sponge throughout the day; the negative pressure in the negative pressure drainage cavity can be adjusted to be lowered during the wetting and flushing process to achieve better wetting and flushing effects. The present invention does not interrupt the negative pressure drainage process during the wetting and flushing process, and the sponge is always in a negative pressure drainage state. Negative pressure leakage is not likely to occur on the wound surface, which reduces the risk of wound infection and has high safety. Through the mutual coordination, connection and use of a T-type three-way ball valve and two L-type three-way ball valves, the present invention has the advantages of simple structure, easy use, no need to close the negative pressure drainage tube during flushing, no negative pressure leakage on the wound surface, safety and reliability, and good flushing and wetting effects. The L-type three-way ball valve can be controlled to realize the conversion between flushing and negative pressure drainage treatment in the flushing cavity and flushing hole. After the sponge on the lower side of the embedded main body is moistened and flushed, it is immediately subjected to close-range negative pressure drainage, which can quickly dissolve the solidified blockage of exudate, with high flushing efficiency and good effect.

Claims

1. A trauma negative pressure treatment device, provided with a sponge, characterized in that: A flat strip-shaped embedded body is provided, at least two drainage chambers are provided laterally on the upper part of the embedded body, at least two flushing chambers are provided laterally on the lower part of the embedded body on the lower side of the drainage chamber, drainage holes are provided on the upper side of the drainage chamber, and flushing holes are provided on the lower side of the flushing chamber. Two embedded bodies are buried parallel to each other in the sponge, and flushing seats and drainage seats are provided on the rear ends of the two embedded bodies on the rear side of the sponge. A flushing collection chamber is provided in the flushing seat, and a drainage collection chamber is provided in the drainage seat. The flushing collection chamber is connected with each flushing chamber, and the drainage collection chamber is connected with each drainage chamber; the drainage collection chambers of the two drainage seats on the two embedded bodies are respectively connected to the first channel end and the second channel end of the T-type three-way ball valve through a collecting pipe, and the third channel end of the T-type three-way ball valve is a negative pressure access end, and the flushing collection chambers of the two flushing seats on the two embedded bodies are respectively connected to the first channel end of the L-type three-way ball valve through a flushing pipe, and the second channel end of the L-type three-way ball valve is connected to the collecting pipe on the same embedded body, and the third channel end of the L-type three-way ball valve is a flushing liquid access end.

2. The trauma negative pressure treatment device according to claim 1, characterized in that: The embedded body has a rectangular cross section, and the length of the rectangle is at least twice its width.

3. The trauma negative pressure treatment device according to claim 1 or 2, characterized in that: Three drainage cavities parallel to each other are evenly distributed in the upper part of the embedded main body in the transverse direction, and four flushing cavities parallel to the drainage cavity are evenly distributed in the lower part of the embedded main body below the drainage cavity in the transverse direction.

4. The trauma negative pressure treatment device according to claim 3, characterized in that: The sponge is in the shape of a rectangular sheet, and a embedding groove arranged in the front-to-back direction and open at the rear end is arranged in the sponge. The embedding body is inserted into the embedding groove through the embedding groove opening at the rear end of the sponge.

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