Ureteroscopes with laser fiber channel

A method of using an endoscope, the method comprising:

• inserting a distal end of a catheter of the endoscope into of an individual, the endoscope including:
• a handpiece at least defining a working channel port and a laser fiber port;
• the catheter including a proximal end and the distal end opposite the proximal end, the catheter at least defining:
• a working channel extending from the proximal end to the distal end of the catheter, the working channel connected to the working channel port;
• an optoelectronic module;
• and
• a laser fiber channel that is distinct from the working channel, the laser fiber channel extending from the proximal end to the distal end of the catheter, the laser fiber channel connected to the laser fiber port;
• and
• a laser fiber;
• wherein the working channel, a distal end of the optoelectronic module, and the laser fiber channel are aligned on an axis;
• and
• wherein at least one of:
• at least one of the laser fiber port includes a funnel structure exhibiting a lateral dimension that decreases with increasing distance from an exterior of the handpiece;
• an optional fiber conduit extending from the laser fiber port to the laser fiber channel includes a funnel structure exhibiting a lateral dimension that decreases with increasing distance from an exterior of the handpiece;
• or
• the laser fiber is pre-loaded into the laser fiber channel.