▁guidance ▁and ▁tun ne led ▁through ▁the ▁skin . ▁Tun ne led ▁c ath eters ▁have ▁multiple ▁channels ▁called ▁lum ens ▁which ▁lay ▁exposed ▁on ▁the ▁surface ▁of ▁the ▁skin . ▁These ▁lum ens ▁are ▁the ▁access ▁points ▁when ▁the ▁c ath eter ▁is ▁used . ▁Tun ne led ▁c ath eters ▁can ▁be ▁single , ▁double , ▁or ▁triple ▁lum ened . ▁Rem oval ▁of ▁a ▁tun ne led ▁c ath eter ▁is ▁a ▁simple ▁procedure ▁requiring ▁only ▁local ▁an est h etic . ▁A ▁band age ▁is ▁applied ▁to ▁the ▁site ▁to ▁he al . ▁ ▁Im pl anted ▁port ▁ ▁A ▁port ▁is ▁similar ▁to ▁a ▁tun ne led ▁c ath eter ▁but ▁is ▁left ▁entirely ▁under ▁the ▁skin . ▁Medic ines ▁are ▁inject ed ▁through ▁the ▁skin ▁into ▁the ▁c ath eter . ▁Some ▁impl anted ▁ports ▁contain ▁a ▁small ▁res er voir ▁that ▁can ▁be ▁re filled ▁in ▁the ▁same ▁way . ▁After ▁being ▁filled , ▁the ▁res er voir ▁slowly ▁releases ▁the ▁medicine ▁into ▁the ▁blood stream . ▁An ▁impl anted ▁port ▁is ▁less ▁obvious ▁than ▁a ▁tun ne led ▁c ath eter ▁and ▁requires ▁little ▁daily ▁care . ▁It ▁has ▁less ▁impact ▁on ▁a ▁person ' s ▁activities ▁than ▁a ▁P IC C ▁line ▁or ▁a ▁tun ne led ▁c ath eter . ▁S urg ically ▁impl anted ▁inf usion ▁ports ▁are ▁placed ▁below ▁the ▁cla v icle ▁( in frac lav icular ▁f ossa ), ▁with ▁the ▁c ath eter ▁thread ed ▁into ▁the ▁heart