Urinary stone collection device

A urinary stone collection assembly comprising:

• a collection device, comprising:
• a filter part having a concave face and an opposite convex face, and a multiplicity of holes forming a filter,
• a lid part connected to the filter part by a hinge, so as to be movable between a deployed position where it acts as a handle, and a closed position where it covers the concave face of the filter part and encloses a volume between the filter and lid parts, in order to retain urinary stones collected by the filter, and
• a locking device configured to lock the filter and lid parts in the closed position,
• wherein the filter part comprises a receptacle for collecting urine for performing a urine pH analysis,
• urine pH test strips,
• a sheet for identifying and recording a urine pH test result, and
• an envelope for transmitting the collection device and the identification and recording sheet.