Transurethral ureter hard convection negative-pressure channel broken stone remover

A negative pressure channel and ureter technology, applied in the field of medical devices, can solve the problems of inaccurate positioning of the outer sheath tube into the surgical site, increased surgical risk, surgical failure, etc., and achieves low-cost, low-risk kidney stones, and easy training and promotion. The effect of improving the safety of use and surgery

Pending Publication Date: 2017-08-22
庞广富
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a lithotripsy device with a rigid convective negative pressure channel through the urethra and ureter, which can solve the problem of the introduction of the outer sheath tube at the beginning of the operation of various existing lithotripsy devices with a rigid passage through the urethra and ureter. Inaccurate positioning of the surgical site leads to difficulty in stone exposure and loss of surgical access,...

Method used

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  • Transurethral ureter hard convection negative-pressure channel broken stone remover
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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and embodiment, the present invention is further described:

[0027] figure 1 , figure 2 and image 3 The transurethral rigid convection negative pressure channel lithotripsy and lithotripsy device includes a uretero-nephroscope, an introduction mirror tube and a lithotripsy nephroscope tube 1 used in conjunction with a uretero-nephroscope, and is sleeved on the introduction mirror or lithotripsy nephroscope tube 1 The outer sheath tube 2, the rubber sealing joint 4 and the limit rubber ring 5 on the outer sheath tube 2, and the pressure relief control valve 3 communicated with the outer sheath tube 2; the outer diameter of the limit rubber ring 5 is 2-2.5 cm ; Described introduction mirror tube or described lithotripsy nephroscope tube 1 is a metal hard tube with the same cross-sectional shape and size of the whole tube; Described outer sheath tube 2 is a circular metal tube; The lithotripsy nephroscope tube 1 includes ...

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Abstract

The invention discloses a transurethral ureter hard convection negative-pressure channel broken stone remover and relates to the field of medical apparatus and instruments. The transurethral ureter hard convection negative-pressure channel broken stone remover comprises an import mirror tube and a broken stone nephroscope tube which are used in matched with a ureteropyeloscope; the import mirror tube or the broken stone nephroscope tube is a metal hard tube, and the shape and the size of the cross section of the whole tube are the same; a sheath tube is a round thin-wall metal hard tube; a gap between the broken stone nephroscope tube and the sheath tube form a water outlet channel with equal cross section area; and [the outer circumference Fr(sheath tube) of the cross section of the sheath tube]*k is equal to the outside perimeter Fr(broken stone nephroscope tube) of the cross section of the broken stone nephroscope tube, and k is equal to 0.35 to 0.65. The transurethral ureter hard convection negative-pressure channel broken stone remover can solve the problem of operation failure caused by the facts that stones are difficult to appear and the operation channel is lost because the sheath tube is imported into the operation part at inaccurate position, and can solve the problems that the operation time is prolonged, the residual stones are excessive and the operation risk is increased because of low absorbing and removing speed of the broken stones and residues caused by the facts that the pressure in pelvis is not liable to rapid and free adjustment and a relief control valve cannot be adjusted flexibly and smoothly in the broken stone removing process.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a surgical device used for intracavity surgical treatment of kidney stones and ureteral bladder stones. Background technique [0002] The urinary tract is the human detoxification system. Urine is filtered by the kidneys and then enters the urinary tract. Because there are many toxins and sediments in the urine, during the metabolic process, sediments are often formed in the kidneys and urinary tract. The accumulation of sediment for a long time can form kidney or urinary tract stones. The presence of stones can cause symptoms such as low back pain or abdominal pain and hematuria. In the removal of kidney stones in urology, a relatively advanced "transurethral rigid convection negative pressure channel holmium laser lithotripsy" is currently used. The commonly used ureteroscope and some specific equipment and methods are used in the operation. Stone crushing and expellin...

Claims

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Application Information

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IPC IPC(8): A61B17/22A61B17/00A61B90/00
CPCA61B17/00234A61B17/22A61B2017/22072A61B2017/22079A61B2017/22082A61B2017/0034A61B2017/00238
Inventor 庞广富
Owner 庞广富
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