1. Uyilo lwemilo yephiko le-Delta luya kunciphisa ukukhuhlana xa kugxininiswe kumzimba wesigulane.Yenza isigulana sizive sikhululekile ngakumbi.Ikhuselekile kwaye inokuthenjwa ngakumbi.
2. Sebenzisa imathiriyeli ye-PU yonyango esetyenziselwa ngokukodwa ukuhlala emzimbeni womntu.Iyahambelana ne-biocompatibility egqwesileyo kunye nokuzinza kweekhemikhali, kunye nokuqina okuphezulu.Izinto eziphathekayo ziya kuzithambisa ngokuzenzekelayo ukukhusela izicubu ze-vascular phantsi kobushushu bomzimba.