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.

Inactive Publication Date: 2015-03-04
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above two designs of ureteroscopes hope to combine the advantages of rigid ureteroscopes and flexible ureteroscopes, and overcome the shortcomings of rigid ureteroscopes and flexible ureteroscopes. The bending angle cannot be adjusted arbitrarily; the latter directly affects the setting and discharge of the original light guide and inlet pipes inside the rigid mirror body because the end of the soft mirror body must be completely submerged in the rigid mirror body, and the soft mirror body There is no specific technical solution for the bending angle control of the body end

Method used

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  • Ureteroscope with extensible sheath with bendable tail end
  • Ureteroscope with extensible sheath with bendable tail end
  • Ureteroscope with extensible sheath with bendable tail end

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to the technical field of a medical instrument, particularly to ureteroscope with a flexible end and a retractable sheath, which is used for diagnosis and treatment of urinary system diseases. The ureteroscope comprises the retractable sheath (1) and an endoscope (2), wherein the retractable sheath (1) is a columnar hollow conduit provided with a retractable sheath handle (1.1) at the end above, a bushing port (1.2) matched with two limiting balls (2.3) on the endoscope (2) is arranged inside the retractable sheath handle, and the endoscope (2) is constituted by an eyepiece (2.7), a focal length adjusting knob (2.6), a light guide bundle interface (2.5), a gyration radius adjusting switch (2.8), a lens deflection direction adjusting knob (2.9) and a lens (2.4). The ureteroscope has the advantages that both the gyration radius and the bending angle of a flexible section (2.11) at the end of the endoscope can be adjusted according to needs so as to realize safe and efficient diagnosis and therapeutic surgery on the urinary system diseases related to ureter, pelvis and kidney calyces.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a minimally invasive surgical endoscope used for diagnosis and treatment of upper urinary tract diseases. Background technique [0002] Ureteroscopy is an endoscope that uses special instruments to diagnose and treat diseases in the upper urinary tract of the urinary system. It does not need to make large incisions on the human body, which significantly reduces damage to tissues, thereby speeding up the recovery of the body and shortening the course of treatment. Improving the curative effect is an important development of endoscopic technology. Its clinical application has changed the long-standing traditional concept that the ureter, renal pelvis, and calyces are difficult to visually inspect and that upper urinary tract diseases must be treated with open surgery. There are two types of ureteroscopes currently in use: rigid ureteroscopes and flexible uretero...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/307A61B1/005A61B1/01
Inventor 孙颖浩高旭刘智勇肖亮
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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