Provided are a combined specimen removal instrument (500) and a method of using the same. The combined specimen removal instrument (500) comprises a disposable specimen bag product package (10) and a multi-use expansion mechanism. The product pack (10) comprises a specimen bag (100) and a sterile packaging system (200), and remains sterile when sold to and used by a customer. The sterile packaging system (200) ensures that the specimen bag (100) is in a sterile state. The specimen bag (100) comprises an open end (110) capable of being opened and closed, and a sealed bag body (120) extending from the open end (110). The specimen bag (100) further comprises a hem (109) surrounding the open end (110) and a drawstring thread (130) inserted into the hem (109). The hem (109) has a first opening (111) and a second opening (113). The specimen bag (100) can be in an unrolled state and a rolled-up state. When the specimen bag (100) is in the rolled-up state, the hem (109) is folded in half, and the first opening (111) and the second opening (113) are substantially aligned with each other. The bag body (120) is folded to form an elongated strip substantially parallel to the hem (109) or rolled up into a roll. The specimen bag (100) further comprises fastening strings (135, 141) for keeping the specimen bag (100) in the rolled-up state, thereby preventing the specimen bag (100) from automatically entering the unrolled state from the rolled-up state.La présente invention concerne un instrument combiné denlèvement déchantillon (500) et son procédé dutilisation. Linstrument combiné denlèvement déchantillon (500) comprend un emballage de produit de type sac déchantillon jetable (10) et un mécanisme dexpansion à usages multiples. Lemballage de produit (10) comprend un sac à échantillons (100) et un système demballage stérile (200), et reste stérile lorsquil est vendu et utilisé par un client. Le système demballage stérile (200) permet de sassurer que le sac à échantillon (100) est d