Medical pad pasting negative pressure drainage device

Abstract

The invention discloses a medical pad pasting negative pressure drainage device which is applicable to in-vivo or body-surface or large-area wound surface treatment. The medical pad pasting negative pressure drainage device comprises porous wound surface surgical dressing, an external sucking disc and a biological semi-transparent membrane which enables the porous wound surface surgical dressing to be sealed on the wound surface. The external sucking disc comprises a conversion connector, a connecting membrane and an outer drainage tube, the outer drainage tube is arranged on one side of the conversion connector, the bottom of the conversion connector is provided with a tray and a through hole, the through hole is communicated with the outer drainage tube, an opening is formed in the position, corresponding to the through hole, of the biological semi-transparent membrane, the connecting membrane is installed on the conversion connector in a sleeved mode through a sucking disc through hole, and the connecting membrane is pasted with the upper surface of the tray and the biological semi-transparent membrane. The tail end of the outer drainage tube is connected with a drainage container, a catheter and a negative pressure source, a flushing tube is arranged in the outer drainage tube, the tail end of the flushing pipe is extended out from the lateral wall of the tail end of the outer drainage tube, and a sealing cover capable of covering the flushing pipe is arranged at the tail of the flushing pipe. The medical pad pasting negative pressure drainage device is simple in structure and good in sealing performance, and the negative pressure drainage effect of the medical pad pasting negative pressure drainage device is improved.

Description

technical field [0001] The invention relates to a negative pressure drainage device, and more particularly to a medical film negative pressure drainage device suitable for treating inside or on the body surface of a human body and large-area wounds. Background technique [0002] Negative pressure drainage technology (referred to as VSD), refers to the use of medical foam containing drainage tubes to cover or fill the wounds of skin and soft tissue defects, and then seal them with biological semi-permeable membranes to make them a closed space, and finally the drainage The tube is connected to a negative pressure source, and a new treatment method that promotes wound healing through controllable negative pressure. [0003] The medical negative pressure drainage device includes a porous foam cushion, and a drainage tube arranged in the porous foam cushion. The drainage tube used in the existing medical negative pressure drainage device is integrated, and a part of the drainage...

AI Technical Summary

Problems solved by technology

[0004] The main disadvantage of the medical negative pressure drainage device with the above structure is: since the drainage inner tube and the outer tube are integrated, the biological semipermeable membrane seals the porous foam cushion and the drainage inner tube placed in the porous foam cushion together. When the surface of the human body is on the surface of the human body, there will inevitably be a certain gap between the drainage tube outside the porous foam cushion, the surface of the human body, and the biological semipermeable membrane, so that the porous foam cushion and the surface of the human body are not tightly sealed, affecting The effect of negative pressure drainage

Images