To explore the application, advantages and disadvantages of self made simple negative pressure device in the preparation of wound bed for diabetic foot.

Statistical analysis 60 patients of diabetic foot in burns, wound repair surgery, People′s hospital of Xinjiang uygur autonomous region from February 2014 to August 2015, 30 patients underwent self made simple negative pressure device(treatment group), and 30 patients underwent the vacuum sealing drainage of Shandong wei gao xinsheng medical instrument co., LTD (control group). To compare the two groups of patients with times of dressing change, treatment time, pain degree, treatment cost and the area of wound granulation in a week and so on. Measurement data was analyzed with t test, grade data with rank sum test.

There was no perioperative deaths and serious complications duration of hospital stay in this two groups. After discharge, the patients were followed up for 3 to 7 months, with a median of 5 months.The difference was not statistically significant in pain degree [(4.82±1.35) points vs (4.01±2.07) points, t=1.194, P=0.142]. But times of dressing change and treatment time of control group were better than treatment group [times of dressing change(10.22±7.32) times vs (5.06±4.69) times, t=4.238, P=0.024; treatment time (24.01±23.11) d vs (19.54±28.97) d, t=3.783, P=0.048]. The treatment cost of treatment group was better than control group [(2.58±1.19) ten thousand yuan vs (4.33±2.78) ten thousand yuan, t=5.482, P=0.017]. The difference was not statistically significant in the area of wound granulation in a week(Z=0.345, P=0.730).

Self made negative pressure drainage device in the production of negative pressure drainage device in patients with diabetic foot wound bed preparation, in the premise of ensuring the same efficacy can greatly reduce the cost of hospitalization, suitable for primary hospital application promotion.