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Stone removal basket with threaded guide head

A technology of guide head and thread, applied in the field of medical equipment, can solve the problems of crushed stone and difficult stone, etc.

Pending Publication Date: 2020-02-28
深圳大学总医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a stone retrieval mesh basket with a threaded guide head, aiming at solving the problems of the mesh basket in the prior art when crushing and taking out stones with large particle size and brittle texture. Difficulty in crushing stones on the head

Method used

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  • Stone removal basket with threaded guide head
  • Stone removal basket with threaded guide head
  • Stone removal basket with threaded guide head

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used ...

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Abstract

The invention discloses a stone removal basket with a threaded guide head and relates to the field of medical instruments. The stone removal basket comprises a handle, an outer tube fixed at the frontend of the handle and an inner tube arranged in the outer tube, a guide rod is arranged in the inner tube, the front end of the guide rod is connected with a basket, and a driving member used for driving the guide rod to rotate is arranged on the handle; the guide head is arranged at the front end of the basket, and the outer wall of the guide head is provided with a screw thread; a sliding switch connected to the rear end of the inner tube is arranged on the handle. According to the invention, the outer wall of the guide head at the front end of the basket is provided with a screw thread, the guide rod is driven to rotate by the driving member, the guide rod is linked with the guide head to rotate and penetrate stones, the screw thread on the outer wall of the guide head enables the guide head to penetrate the stones more easily when the guide head rotates, and the stones are broken, so that it is convenient for the basket to remove the stones by enclosing.

Description

technical field [0001] The invention relates to the field of medical appliances, in particular to a stone extraction basket with a threaded guide head. Background technique [0002] Calculus refers to solid lumps formed in the lumen of human catheters or luminal organs, such as kidneys, ureters, gallbladder or bladder, etc. Calculi often cause symptoms such as hematuria and biliary colic in patients. At present, the diagnosis and treatment technology for calculus is very mature. In order to avoid pain, surgical treatment is required if necessary. Currently, the commonly used and recognized operation is stone removal with net basket, which is a safe and reliable minimally invasive method. treatment method. [0003] In the stone extraction net basket of the prior art, the net basket is usually composed of several guide wires distributed equidistantly in the circumferential direction. in, and then remove the stone. Of course, different stone removal methods are also differen...

Claims

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Application Information

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IPC IPC(8): A61B17/221
CPCA61B17/221
Inventor 何勇肖云云刘辉杨睿李晓武
Owner 深圳大学总医院
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