(57) In general, for example, [Abstract] The present invention relates to medical devices, such as collecting device to collect the material from the body. The More particularly, (for example, biological material derived from other body passage urinary tract stones, and gallstones) The present invention relates to a recovery apparatus for recovering the captured stone. An object of the present invention, a medical device, that is to provide a medical recovery device having a function that allows the recovery of the substances in the body. The material can be any kinds of materials of various other in vivo or foreign matter (eg, stones), or biological material. This material, I can be located elsewhere in the body or biliary or urinary tract. Medical device according to the invention are used to treat visceral containing substances such as thromboembolic or stones. Typically, the recovery assembly includes a proximal handle, and sheath (eg, a basket) and the sheath, which extends from the handle, the medical device, away from the handle and includes a lumen I includes a proximal end.
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