Iisirinji eziLahliweyo zoNyango zineempawu kunye nolwakhiwo: Le mveliso yenziwe ngomphanda, iplunger, ipiston kunye nenaliti. Lo mgqomo kufuneka ucoceke kwaye ucace ngokwaneleyo ukuze ubonwe lula. Umgqomo kunye nepiston ihambelana kakuhle kwaye inepropathi elungileyo yokutyibilika, kwaye kulula ukuyisebenzisa. Umgqomo ocacileyo kulula ukuyiqonda i-volumn kwaye umphanda ocacileyo ukwalula ukusula iqamza. I-plunger ishukunyiswa kakuhle ngaphakathi komphanda.
Imveliso iyasebenza ukutyhala isisombululo kwi-vein yegazi okanye i-subcutaneous, nayo inokukhupha igazi kumzimba womntu emithanjeni. Ifanelana nabasebenzisi bobudala obahlukeneyo kwaye iindlela ezisisiseko zokuxilisa.