Minimally invasive type renal calculus removing device

A kidney stone and grasping device technology, applied in medical science, surgery, etc., can solve the problems of complicated operation and large wound area, and achieve the effect of solving large wound area and improving practicability and applicability

Pending Publication Date: 2017-01-04
THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a minimally invasive kidney stone removal device,

Method used

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  • Minimally invasive type renal calculus removing device
  • Minimally invasive type renal calculus removing device

Examples

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Example Embodiment

[0021] The present invention will be further described with reference to the following embodiments, but the present invention is not limited to the following embodiments.

[0022] The minimally invasive kidney stone removal device described in this example, as attached figure 1 As shown, it includes a hollow cylindrical outer sheath tube 10 and a cylindrical operating rod 20 fitted inside the tube. The operating rod 20 is longer than the outer sheath tube 10 and has a ring-shaped handle 22 at the tail end. A gripping device 30 is connected to the front end of the operating rod 20.

[0023] As attached figure 1 And figure 2 As shown, the grasping device 30 includes a stone claw 31 with a hook at the end, and an elastic thrust element 32 connected to the operating rod 20 and the inner surface of the stone claw 31. A boss 23 is provided at the center axis of the front end of the operating rod 20 so that the front end of the operating rod 20 has a stepped structure. In the example,...

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PUM

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Abstract

The invention discloses a minimally invasive type renal calculus removing device, comprising an outer sheath tube, an operating lever sheathed in the outer sheath tube, and a grabbing device connected with the front end of the operating lever, wherein the grabbing device comprises calculus removing claws with hooks at end parts, and the bottom of each calculus removing claw is hinged with the operating lever; an elastic thrust element is connected between the inner side surfaces of the calculus removing claws and the operating lever; and a gap position between the adjacent calculus removing claws on the front end surface of the operating lever is provided with an axial through hole. The bottoms of the calculus removing claws are hinged with the operating lever, and the closing of a claw end is achieved by applying a radial pressure to the calculus removing claws by using the outer sheath tube and setting a ring-sleeve type structure; the elastic thrust element arranged on the device enables the calculus removing claws to be in an expanded state; and the gap position between the adjacent calculus removing claws is provided with the axial through hole for placing auxiliary equipment. The minimally invasive type renal calculus removing device disclosed by the invention can well solve the problems of large wound surface and complex operation of a current renal calculus removing device.

Description

technical field [0001] The invention relates to the technical field of minimally invasive stone removal, in particular to a minimally invasive kidney stone removal device. Background technique [0002] Kidney stones are a common clinical disease at present, referring to stones that occur in the renal calices, renal pelvis, and the junction between the renal pelvis and the ureter. The kidney is the main part of the urinary system where stones form. Almost all ureteral stones come from the kidney, and kidney stones are more likely to directly damage the kidney than stones in any other part. The most commonly used surgical method for kidney stones is pelvic stone extraction. The surface of the kidney stone extraction currently used clinically is a flat surface with shallow horizontal stripes. It is used to grasp intrarenal stones. The stone extraction forceps have little contact with the stones and can only clamp one end of the stones. It is easy to take out and brings great d...

Claims

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Application Information

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IPC IPC(8): A61B17/22
CPCA61B17/22031A61B2017/22034
Inventor 颜海标莫曾南余永当邱汝彪吴福霖王茹月
Owner THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIV
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