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Combined soft-hard ureteroscope

A ureteroscope, a combined technology, applied in the field of medical devices, can solve problems such as failure to achieve success, and achieve the effect of simple structure, convenient use, and stable image quality

Active Publication Date: 2011-04-06
YOUCARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been pioneers who have tried many methods to try to solve this problem. Due to reasons such as design structure and manufacturing process, they have not been successful.

Method used

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  • Combined soft-hard ureteroscope
  • Combined soft-hard ureteroscope
  • Combined soft-hard ureteroscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: see figure 1 , The combined flexible and rigid ureteroscope described in this embodiment is composed of seven components such as a hard sheath 1, a rotary joint 2, a handle 3, a fastening nut 4, a soft sheath fixing sleeve 5, a connecting nut 6 and a soft mirror 7. Among them, the hard sheath 1 is composed of two sections of stainless steel pipe welded, the outer diameter of the left section is ￠3mm thin-walled steel pipe, which is the part entering the ureter; The matching part plays a role of rotation, and the outer wall of the right section of the hard sheath 1 is provided with an annular boss 8 along the circumferential direction, and the inner diameter of the hard sheath 1 is ￠2.7mm. The flexible mirror fixing sleeve 5 adopts a stainless steel tube with an outer diameter of ￠5, which is set on the outside of the rear section of the flexible mirror 7 conduit, and connects the rear end of the flexible mirror fixing sleeve 5 with the flexible mirror 7 co...

Embodiment 2

[0020] Example 2: see figure 2 , the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that: the inner hole of the hard sheath 1 is divided into two inner holes with different inner diameters on the left and right, the inner diameter of the inner hole of the left section is ￠2.7mm, and the inner diameter of the inner hole of the right section It is ￠4mm, and the outer diameter of the fixed sleeve of the soft mirror is ￠4mm. The handle 3 is divided into two halves along the end surface of the annular groove, and the two halves are connected by thread or bonding. The through hole in the handle 3 can adopt the mode of embodiment 1 to be placed on the hard sheath and the fixed sleeve of the soft mirror, and can also be completely placed on the hard sheath, but the elastic chuck 9 positioned at the end of the handle 3 must be connected with the soft mirror Fixed bushings correspond.

[0021] When this embodiment is working, the flexibl...

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Abstract

The invention relates to a combined type soft-rigid ureteroscopy, which comprises a columnar rigid sheath, a soft lens, a handle and a revolving joint, and is characterized in that a soft lens fixing sleeve fixedly connected with the soft lens is sleeved outside the rear segment of the soft lens; the soft lens fixing sleeve and the soft lens are inserted into an inner hole of the rigid sheath together; a through hole is formed in the handle; the through hole of the handle is sleeved outside the rigid sheath; an axial locating device is arranged between the rigid sheath and the through hole ofthe handle; the revolving joint is fixed on an outer wall of the rigid sheath; and a fixing mechanism for controlling the fixation / separation between the handle and the soft lens fixing sleeve is arranged on the handle. The combined type soft-rigid ureteroscopy combines the characteristics of a soft ureteroscopy and a rigid ureteroscopy together, has a simple structure and convenient use, and canfluently push the soft ureteroscopy to the relevant positions of a renal pelvis and a renal calyx through a ureter so as to achieve diagnosis and therapy effects.

Description

technical field [0001] The invention relates to a medical device, in particular to a combined flexible and rigid ureteroscope that enters the renal pelvis and calyces through the ureter to treat renal pelvis and calices stones, biopsy, and diagnose and treat renal pelvis and calices tumors. Background technique [0002] At present, there are separate flexible ureteroscopes and rigid ureteroscopes in the world. Rigid ureteroscopes are easy to operate and can pass through the ureter to reach the renal pelvis. However, since the front end of the rigid ureteroscope cannot be bent, it cannot adjust its direction after entering the renal pelvis to enter each group of renal calices for various diagnosis and treatment; although the front end of the flexible ureteroscope can be unidirectional Or bend and turn at a large angle, but it is difficult to enter the renal pelvis and renal calyces through the ureter. Although it can enter the renal pelvis and renal calyces under the guidance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/307A61B1/00A61B17/22A61B17/94A61B10/04
Inventor 龙刚夏萍陈志强张杰
Owner YOUCARE TECH CO LTD
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