restoration of structure and function using autologous free fat grafts has always been a challenge . the advent and refinement of liposuction and lipoinjection techniques , abundant donor - tissue availability , and relative ease of harvesting have made autologous fat an attractive material for use as soft - tissue filler . fat is harvested using either ( 1 ) syringe aspiration or ( 2 ) liposuction aspiration,(1 ) performed with a liposuction pump ( byron medical , tucson , ariz . ) . a standard coleman aspirator cannula ( byron medical ) with a curettage tip ( 500 mm mercury).(2 ) syringe aspiration is tedious if the amount of fat required is substantial . when the liposuction aspiration using a liposuction pump is performed the whole suction system , and the container needs to be kept sterile . ( figure 1 ) we have devised a novel method of lipoaspiration to overcome these problems . the above picture helps us to compare the three modalities of lipoaspiration and also helps us to note the advantage of our technique materials required 20 - 50 cc disposable syringe , a piece of 2  2 cm polypropylene mesh , lipoaspiration suction pump ( figure 2a ) . ( a ) materials required for the procedure , ( b ) connected syringe mesh system , ( c ) close - up view of the mesh in liposuction aspiration , a suction pump is used . in our technique , a piece of polypropylene mesh is kept at one end of the lipoaspiration syringe , which is then connected to the suction pump . ( figure 2b & 2c ) as one syringe fills , it is replaced by another one until the required amount of fat is obtained . these syringes are then centrifuged and the emulsified fat thus obtained is used for grafting ( video 1 ) . by using a polypropylene mesh in our technique , we are able to separate the transfusate from the harvested fat during harvesting itself in our experience , the fat graft obtained by this method is found to be concentrated and has fewer contaminants . this method also has the added advantage of having a short processing time , from harvesting to grafting . fat grafting remains unpredictable , and various anecdotal harvesting and preparation techniques have been advocated . our method is a more economical and an easier way to extract sterile emulsified fat . as it is a simple method , it can be practiced even in day care centers . hence , we recommend our technique as a reliable and routine method for extracting sterile emulsified fat in an economical way .
background : successful restoration of structure and function using autologous free fat grafts has remained elusive . 
 review of literature shows that various harvesting and preparation techniques have been suggested . 
 the goal of these techniques is to obtain greater adipocyte cell survival and consequently more reliable clinical results.materials and methods : in our technique , a piece of mesh is kept at one end of the lipoaspiration syringe , which is then connected to the suction pump . 
 as one syringe fills , it is replaced by another one until the required amount of fat is obtained.results:by using a polypropylene mesh in our technique , we can separate the transfusate from the harvested fat graft during harvesting itself . the fat graft thus obtained is dense and concentrated , with fewer impurities.conclusion:hence , we recommend our technique as a reliable method for extracting sterile emulsified fat in an economical way .