Ntshav Collection Needle yog siv ua ke nrog Lub Nqus Ntshav Sau Tubes rau Kev Sau Ntshav thiab kuaj ntshav hauv tsev kho mob lossis tsev kho mob.Cov txheej txheem sau cov ntshav raug kaw kom ntseeg tau tias lub raj koob tsis raug, thiab cov ntshav raug kaw rau hauv qhov chaw nyab xeeb, tsis nyob rau sab nraud.
ib puag ncig, kom tsis txhob muaj kuab paug thib ob thaum tiv thaiv ib puag ncig.