Ureteroscope with extensible sheath with bendable tail end
A telescoping technology for ureteroscopes, applied in urethroscopes, endoscopes, cystoscopes, etc., can solve the problem that the bending angle cannot be adjusted arbitrarily, affects the rigid mirror body light guide, inlet pipeline setting and discharge, and soft mirror body There are no specific technical solutions for terminal bending angle control, so that inspection and treatment operations are safe and easy, simple in structure, and safe.
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Embodiment 1
[0041] As shown in the figure, a flexible ureteroscope with a telescopic outer sheath is composed of an endoscope and a telescopic sheath 4. The endoscope includes an endoscope body 21 and an endoscope body in sequence. Connected rigid section 20, bendable section 5 and lens 6;
[0042] The telescopic sheath 4 is a cylindrical hollow catheter, which is sleeved on the outside of the rigid section 20, and one end of the telescopic sheath is connected to the endoscope body;
[0043] The endoscope body includes: a handle 2, a control mechanism in the handle, a light guide port 7 on the handle, a water inlet port 10, an eyepiece 8 and a focus adjustment knob 9 at the end of the handle.
[0044] One end of the telescopic sheath 4 is connected with the endoscope body through a mounting mechanism.
[0045] The control mechanism is arranged in the control cavity 3 in the handle of the endoscope body, and the control mechanism includes a radius of gyration adjustment unit and a lens de...
Embodiment 2
[0051] A flexible ureteroscope at the end of a telescopic outer sheath, the rest of which are the same as in Embodiment 1, and the radius of gyration adjustment unit includes:
[0052] a control piece 18, the control piece is arranged in the control chamber 3; and
[0053] A control line 19 , one end of the control line is connected to the control piece, and the other end of the control line is arranged in the rigid section 20 and the bendable section 5 .
[0054] The lens deflection direction adjustment unit includes:
[0055] Rotating block 11, the rotating block is movably fixed on the exchange shaft, and an adjusting knob is provided at one end of the rotating block;
[0056] An exchange shaft 13, the exchange shaft is arranged on one side of the rotating block, and the exchange shaft is attached to the rigid section; and
[0057] The adjustment line 14 is arranged at both ends of the rotating block, and after passing through the exchange shaft, the adjustment line inter...
Embodiment 3
[0059] A flexible end ureteroscope with a telescopic outer sheath, the rest is the same as that in Embodiment 2, the outer diameter of the exchange shaft 13 is less than or equal to the inner diameter of the rigid section 20 .
[0060] The length of the adjustment wire 14 extends to the end of the rigid section, and the material of the adjustment wire is memory metal wire.
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