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Percutaneous nephroscope visual expansion sheath

A technology of nephroscope and expansion tube, which is applied in the fields of medical science, surgery, diagnosis, etc. It can solve the problems of not being able to observe the expansion sheath, renal hemorrhage, puncture too deep, etc., and achieve the effect of preventing renal hemorrhage

Active Publication Date: 2017-11-07
蓝线铂立生命科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional percutaneous nephroscope still has defects. For example, when the expansion is performed after the puncture, the traditional expansion sheath cannot observe the position of the expansion sheath, which may easily cause medical accidents such as excessive puncture and renal hemorrhage.

Method used

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  • Percutaneous nephroscope visual expansion sheath
  • Percutaneous nephroscope visual expansion sheath
  • Percutaneous nephroscope visual expansion sheath

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see Figure 1-Figure 2 , percutaneous nephroscopically visible expansion sheath, comprising a tearing sheath 100 and an expansion tube 200 arranged in the tearing sheath 100, the expansion tube 200 is cylindrical, the front end is a cone, the top of the cone is a circular plane 230, and the expansion The tube 200 is provided with a working channel 210 for channeling a guide wire and an optical fiber. The working channel 210 is arranged parallel to the expansion tube 200 and concentric with the cross section of the expansion tube 200 , and the working channel 210 passes through the circular plane 230 . The cross-sectional shape of the working channel 210 is circular, and the optical fiber jacket is provided with a fiber protection sleeve. The diameter of the tube 200 needs to maximize the diameter of the working channel, which can pass through the optical fiber and the guide wire with the optical fiber protective sleeve at the same time, so the working channel 210 is se...

Embodiment 2

[0031] see Figure 4-Figure 6 The difference between embodiment 2 and embodiment 1 is that: the inner wall of the working channel 210 is also provided with an auxiliary channel 220 parallel to the working channel 210. In actual operation, the optical fiber with the optical fiber protection sleeve passes through the working channel 210, The guide wire passes through the auxiliary channel 220, further optimizing the space.

[0032] The beneficial effect of the present invention is that the visual image system can be used to effectively locate the puncture expansion when the expansion puncture is performed by using the visible expansion sheath, so as to prevent medical accidents such as renal hemorrhage caused by too deep puncture in conventional operations.

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Abstract

The invention relates to a percutaneous nephroscope visual expansion sheath. An expansion tube is cylindrical, the front end of the expansion tube is a cone, the top end of the cone is a round plane, and a working passage used for a passage guide wire and optical fiber is arranged in the expansion tube, is parallel to the expansion tube and concentric with cross section of the expansion tube and penetrates out from the round plane. The percutaneous nephroscope visual expansion sheath has the advantages that when the visual expansion sheath is used for expansion puncture, a visual image system can be applied to effectively perform puncture expansion positioning so as to completely eradicate medical accidents like nephrorrhagia caused by the fact that conventional surgeries are too deep in puncture.

Description

technical field [0001] The invention relates to a medical device, in particular to a percutaneous nephroscope. Background technique [0002] Surgical treatment methods for kidney stones include: open lithotomy, extracorporeal lithotripsy, and percutaneous nephrolithotomy. The traditional method of "removing stones with a knife" requires a large incision of about 20 cm in the waist, incision of the muscles in the waist, separation of the kidneys, and a small incision in the renal pelvis or renal parenchyma to remove the stones. This method causes more damage, more bleeding, more pain, and slower recovery. Usually you need to stay in the hospital for about 7 days after the operation. Because the surgical incision is large, not only the skin is not beautiful, but also the physical strength of the patient is greatly affected after the operation. Compared with open surgery, percutaneous nephrolithotomy has the advantages of less damage, less pain, complete stone removal, and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22A61B17/00A61B90/30A61B90/00
CPCA61B17/00234A61B17/22A61B2017/0034A61B2017/22077A61B90/30A61B90/37A61B2090/306
Inventor 程跃刘冠琳史军谢国海严泽军郁鹏忠
Owner 蓝线铂立生命科技(苏州)有限公司
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