Amashethi ezethulo, aziwa nangokuthi amashethi aqondisayo, angamathuluzi ezokwelapha asetshenziswa ezinqubweni ezahlukahlukene ukusiza ukuqondisa nokwethula ezinye izisetshenziswa zezokwelapha noma izisetshenziswa emzimbeni. Ngokuvamile zenziwe ngezinto eziguquguqukayo ezifana ne-polyethylene noma i-polyurethane.Ama-Introducer sheaths avame ukusetshenziswa ku-interventional cardiology, i-radiology, nokuhlinzwa kwemithambo. Asetshenziselwa ukusiza ukufakwa kwama-catheter, izintambo zokuqondisa, noma ezinye izisetshenziswa ngemithambo yegazi noma eminye imigodi yomzimba. Ama-sheaths ahlinzeka ngendlela ebushelelezi yezinsimbi, okuvumela ukufakwa kalula futhi okuphephile.Ama-sheaths okwethula afika ngobukhulu obuhlukahlukene kanye nokucushwa ukuze kuhlangatshezwane nezinqubo ezihlukahlukene zezokwelapha kanye nezidingo ezithile zesiguli. Ngokuvamile aklanywa nge-dilator ekugcineni ukuze asize ukwandisa umkhumbi noma izicubu ngesikhathi sokufakwa.Kubalulekile ukuqaphela ukuthi ukusetshenziswa kwama-introducer sheath kuyinqubo yezokwelapha okufanele yenziwe kuphela ochwepheshe bezempilo abaqeqeshiwe.
