Incision sealing negative pressure drainage device

Abstract

The invention discloses an incision sealing negative pressure drainage device which comprises a sponge dressing and a drainage tube device, a round hole is formed in the center of the sponge dressing, and the lower end of the drainage tube device penetrates through the round hole and then is placed into a hand postoperative closed incision; the drainage tube device comprises a head, a neck and a tail, the lower end of the head is connected with the neck, a middle drainage hole is formed in the middle of the head and is of a bucket-shaped structure, the bottom of the neck is connected with the tail, a center drainage channel is formed in the middle of the neck and the middle of the tail, and the top of the center drainage channel is communicated with the middle drainage hole. A drainage groove is formed in the outer surface of the tail portion, a side drainage hole is formed in the drainage groove, and the side drainage hole is communicated with the center drainage channel. The device not only can solve the drainage problem of the surgical incision, but also can improve blood supply of the surgical incision, reduce incision scars, promote soft tissue detumescence and incision healing, avoid postoperative incision dressing change, reduce incision infection and avoid the situation that a drainage tube needs to be additionally provided with a hole.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an incision sealing negative pressure drainage device. Background technique [0002] Negative pressure sealing drainage technology (Vacuum Sealing Drainage, referred to as VSD technology) was first proposed in 1992 by Dr. Fleischmann in Germany. It uses medical sponge foam to cover the wound, and then seals it with a medical film. The negative pressure source is connected to maintain a continuous negative pressure in this way, and the exudate in the wound can be sucked out all the time. In 1997, two scholars, Morykwas and Argenta from North America, first explained the mechanism of VSD in the form of a paper, mainly in the following aspects: 1. Increase blood perfusion at the site of incision application and improve local blood supply; 2. Accelerate the formation of granulation tissue; 3. Reduce the number of bacteria in the wound and reduce the chance of infection; 4. I...

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Problems solved by technology

[0004] However, the application of conventional VSD devices to closed incisions in fracture surgery also faces some problems, because VSDs on the market are mostly used for open and temporary wounds that are difficult to close, and foam dressings can only be placed on the superficial part of the wound. Drainage tubes, but only limited to the built-in or external placement of foam dressings, because the site of fracture surgery is often deep, and the exudate and hemorrhage in the deep soft tissue after suturing often require a long drainage tube, superficial foam dressings For such a closed incision, it will lead to insufficient drainage of effusion, leading to premature drying and hardening of the dressing or blockage of the drainage tube, so that the surgical incision is still at risk of complications such as postoperative infection

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