All data generated or analysed during this study are included in this published article and its tables. This retrospective study analyzed the effectiveness of intrathoracic negative pressure therapy for debilitated patients with empyema and compared the short-term and long-term outcomes of three different intrapleural vacuum-assisted closure VAC techniques. No major complication was related to intrathoracic VAC therapy. Overall, the day and day mortality rates were 4. For debilitated patients, immediate minimally invasive intrathoracic vacuum therapy is a safe and viable alternative to OWT.
Study record managers: refer to the Data Element Definitions if submitting registration or results information. This study is being done to gather data that will be used to compare two different TAC Temporary Abdominal Closure methods that your doctor may use. The BVPT is made up of supplies that are stocked in most surgery rooms. The ABThera dressing is available commercially. Neither method will be supplied to the doctor Principal Investigator , so that in no way would the subject's standard of care be different from what they would get if the study was not being done. This study is observational and only collects data about how the subject progresses after surgery TAC is used. When a study is observational it means that the subject's standard medical care will not be altered in any way, simply watched.
When you sip soda through a straw, you are utilizing the simplest of all suction mechanisms. Sucking the soda up causes a pressure drop between the bottom of the straw and the top of the straw. With greater fluid pressure at the bottom than the top, the soda is pushed up to your mouth. This is the same basic mechanism at work in a vacuum cleaner, though the execution is a bit more complicated. In this article, we'll look inside a vacuum cleaner to find out how it puts suction to work when cleaning up the dust and debris in your house.
The utility model belongs to power equipment and particularly relates to a vacuum eccentric transformer butterfly valve. The vacuum eccentric transformer butterfly valve comprises a valve body 3 , a valve rod 4 , a valve rod sleeve 6 and a gland 2. The four corners of the end face of the valve body 3 are symmetrically provided with four installation connecting holes , an inner hole of the valve body 3 is fixedly provided with two valve rod sleeves 6 respectively, a valve rod 4 movably penetrates through the valve rod sleeves 6 , a butterfly plate 5 is fixedly arranged on the valve rod 4 which penetrates through an eccentric hole of the butterfly plate 5 , padding is added to the upper end of the valve body 3 for sealing and is pressed tightly through the gland 2 , and the upper end of the valve rod 4 is connected with a driving device 1.