A calculus removing device includes a retaining portion (e.g., a wire or gel), a cylinder, an introduction tube, and a hand-operated unit. The retaining portion is configured to retain calculi and broken calculus pieces. The cylinder includes a storage portion configured to store the calculi, an opening communicating with the storage portion, and an introducing portion configured to permit the retaining portion to be introduced into the storage portion. The introduction tube is provided with a lumen which allows introduction of the retaining portion into the storage portion via the introducing portion. The hand operating unit is provided with an operating member configured to operate the introduction of the retaining portion into the storage portion.
