company news about VSD negative pressure occlusion drainage treatment usual care

1. Nursing method, after the completion of sealing, the conventional method is to choose the transparent suction bottle and replace it frequently, in order to prevent the liquid in the drainage tube from flowing into the VSD dressing, first clamp the drainage tube, close the negative pressure source, and then replace. During the use of VSD, it is necessary to observe whether the negative pressure of the negative pressure source is within the specified range: -125~450mmHg, whether the VSD dressing collapses, whether the drainage tube tube type exists, whether a large amount of fresh blood is sucked out, if it is normal, no special treatment is required. Care should be taken to prevent the drainage tube of the VSD dressing from being compressed into a fold and thus blocking the negative pressure source.

2. Negative pressure maintenance time, a negative pressure seal drainage can maintain effective drainage for 5~7 days, generally pulled out or replaced after 7 days, for wounds with poor tissue blood supply and larger area, such as hands, feet should be VSD method 1~2 times, the time should be 7~15 days. For large areas of exposed bone, tendon exposure, considering the surrounding granulation crawling speed, VSD method is generally performed 3~4 times, the time is about 15~30 days, but some cases require shorter time, so the clinical need to be determined according to the specific situation. For wounds with serious pollution, such as bruises, shotgun injuries, burst injuries, etc., VSD is generally performed 2~3 times, and the time may be as long as 15~20 days. After skin grafting, it is packed under pressure with VSD, and the negative pressure state needs to be maintained for 12~15 days.

3. In special cases, VSD dressings become dry and hard, which may be due to the dealcoholization and hardening of VSD dressings caused by poor sealing, or because the wound liquid drainage is attracted clean. If it becomes hard in the first 48 hours, normal saline can be slowly injected into the drainage tube and soaked in VSD dressing to re-soften. If it becomes hard after 48 hours, there is no drainage in the drainage tube and it continues to move, and if it is not treated at this time, it will generally not affect the final effect of the VSD wound. The most common leaks are at the mesangium of drains or nails, as well as at tee joints, where skin folds and where fluid leaks at the edges. When a large amount of fresh blood is found to be aspirated out, the doctor should be notified immediately, carefully checked for active bleeding in the wound, and made appropriate treatment. If there is a fistula leading to the organ or body cavity, osteomyelitis, wound malignant transformation, active bleeding, etc., VSD treatment should not be used.

4. The drainage tube situation, sometimes it can be seen that there is a section of dry drainage in the drainage tube to block the lumen of the tube, and thus truncate the negative pressure source of VSD dressing, and even make the negative pressure bulge, no tube type, at this time retrograde slow injection saline immersion, after the blocked drainage becomes soft, reconnect the negative pressure source, if you need to operate multiple times, even replace VSD dressing.

5. Dressing situation, VSD dressing bulging, no tube shape, common reasons in addition to drainage tube blockage, should also consider the negative pressure source abnormality. If the negative pressure caused by the damage of the suction machine is not enough, the central negative pressure meter head is damaged, the air leakage at the joint of the drainage channel is cut off, the power supply is disconnected and the negative pressure in the center stops, and the drainage tube is compressed by the patient's weight, folded, etc. At this point, it needs to be handled on a case-by-case basis. VSD dressing has a little necrotic tissue and exudate residue, sometimes through the semi-permeable membrane odor, dressing appears yellow-green, green pus, gray dark and other dirty colors, which is not caused by the necrotic tissue of the wound, will not affect the treatment effect of VSD, generally no need to do special.