Apparatus for laser lithotripsy

An apparatus for fragmenting a stone, the apparatus comprising:

• an endoscope comprising a working channel, where the working channel is configured to have a retrieval basket inserted therethrough;
• a laser fiber;
• a sheath comprising at least two lumen, where a first one of the lumen is connected to the endoscope with a shaft of the endoscope extending through the first lumen, where a second one of the lumen is spaced from the shaft of the endoscope providing a channel proximate an exterior side of the shaft, where the second lumen has the laser fiber inserted therethrough;
• and
• a detection feedback system configured to deliver a low energy check pulse from the laser fiber and detect a response based upon the low energy check pulse, and configured to at least partially control delivery of a high energy laser pulse from the laser fiber to cause the stone to fragment, where the detection feedback system is configured to use image processing, where the detection feedback system is configured to recognize at least one of:
• a shape of at least a portion of the retrieval basket,
• a color of at least a portion of the retrieval basket, or
• a pattern on at least a portion of the retrieval basket.