Uretero-renoscope
A uretero-renoscope includes a shaft, on whose distal end an instrument head is arranged. The instrument head tapers continuously in the distal direction.
1. A uretero-renoscope comprising:
a shaft ( 4 ) defining a longitudinal axis (A); and
an instrument head ( 6 ) on a distal end of the shaft ( 4 ) and defining a middle axis generally coaxial with the longitudinal axis, the instrument head ( 6 ) including:
a proximal portion ( 16 ) fixed in the distal end of the shaft ( 4 ),
an end face ( 20 ), perpendicular to the middle axis, forming a distal end of the instrument head ( 6 ), including a guide channel ( 8 ) for observation optics and a guide channel ( 10 ) for illumination means, the guide channels ( 8 , 10 ) being symmetrically disposed about the longitudinal axis (A),
opposing first and second peripheral sections ( 22 , 24 ) essentially diametrically distant to one another about the middle axis, each of the first and second peripheral sections ( 22 , 24 ) being beveled in a wedge-shaped manner from the proximal portion ( 16 ) to the end face ( 20 ), wherein an instrument channel ( 12 , 14 ) extends through each one of the first and second peripheral sections ( 22 , 24 ), the instrument channels ( 12 , 14 ) being symmetrically disposed about the longitudinal axis (A), and
opposing third and fourth peripheral sections ( 26 , 28 ), each of the third and fourth peripheral sections ( 26 , 28 ) arranged between the first and second peripheral sections ( 22 , 24 ) and distally tapering from the proximal portion ( 16 ) to the end face ( 20 ), wherein the third peripheral section ( 26 ) distally tapers further toward the middle axis than the fourth peripheral section ( 28 ).
2. The uretero-renoscope according to claim 1 , wherein a laser probe is guided in one of the instrument channels ( 12 , 14 ) and may be fixed on a control housing ( 2 ) bordering the shaft ( 4 ) on a proximal side.
3. The uretero-renoscope according to claim 2 , wherein the laser probe is displaceable in one of the instrument channels ( 12 , 14 ) in a limited manner in a longitudinal direction of the instrument channels ( 12 , 14 ).
4. The uretero-renoscope according to claim 1 , wherein at least one of the instrument channels ( 12 , 14 ) forms a rinsing channel.
5. The uretero-renoscope according to claim 1 , wherein one of the instrument channels ( 12 , 14 ) forms a rinsing fluid feed and the other one of the instrument channels ( 12 , 14 ) forms a rinsing fluid discharge.
6. A uretero-renoscope comprising:
a shaft ( 4 ) defining a longitudinal axis (A);
an instrument head ( 6 ) at a distal end of the shaft ( 4 ) and defining a middle axis generally coaxial with the longitudinal axis, the instrument head ( 6 ) including:
a proximal portion ( 16 ) having an outer periphery,
an end-face ( 20 ) forming a distal end of the instrument head ( 6 ), including a guide channel ( 8 ) for observation optics and a guide channel ( 10 ) for illumination means, the guide channels being symmetrically disposed about the longitudinal axis (A),
first and second peripheral sections ( 22 , 24 ) extending from the distal end of the shaft ( 4 ) to the end-face ( 20 ),
third and fourth peripheral sections ( 26 , 28 ) extending from the distal end of the shaft ( 4 ) to the end face ( 20 ),
each of the first and second peripheral sections ( 22 , 24 ) tapering at a constant angle to the end-face ( 20 ),
each of the third and fourth peripheral sections ( 26 , 28 ) being positioned between the first and second peripheral sections ( 22 , 24 ), each of the third and fourth peripheral sections ( 26 , 28 ) having a curved peripheral surface, and the third peripheral section ( 26 ) distally tapering further toward the middle axis than the fourth peripheral section ( 28 ); and
two spaced-apart instrument channels ( 12 , 14 ) extending through the shaft ( 4 ) and the instrument head ( 6 ), and being symmetrically disposed about the longitudinal axis (A), each instrument channel ( 12 , 14 ) being positioned at least partially in one of the first and second peripheral sections ( 22 , 24 ) at the instrument head ( 6 ).
7. The uretero-renoscope according to claim 6 , wherein the two guide channels ( 8 , 10 ) are each positioned at least partially in one of the third and fourth peripheral sections ( 26 , 28 ) at the instrument head ( 6 ).