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Double-J tube for removing urinary calculus

A catheter and stone technology, applied in the field of double J tube for stone removal, can solve the problems of lower stone removal rate, smaller volume of stones that can be discharged, narrower ureteral space, etc., and achieve the effect of improving stone removal rate

Pending Publication Date: 2020-03-17
王军
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, the solutions for calculus discharge are mainly in terms of crushing stones and promoting ureteral peristalsis. The built-in double J tube will narrow the ureteral space while draining and supporting, so that the volume of calculi that can be discharged is reduced. Therefore, the stone removal rate will be reduced

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  • Double-J tube for removing urinary calculus
  • Double-J tube for removing urinary calculus

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Embodiment Construction

[0012] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the stone-dispelling double J tube involved in the present invention includes an elastic ring 1 at the end of the renal pelvis, an elastic ring 3 at the end of the bladder, and a catheter 2. A number of side holes are arranged at intervals on the double J tube, and the side holes communicate with the central channel 7 in the double J tube. The above structure belongs to the basic structure of the existing double J tube, and will not be described in more detail here.

[0014] In order to improve the stone-clearing rate and expel stones from the body early, the catheter 2 involved in the present invention is provided with a spiral ridge 4, and the starting end of the spiral ridge 4 is elastically connected to the starting end of the catheter 2 (that is, to the end of the renal pelvis). The end connected to th...

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Abstract

The invention provides a double-J tube for removing urinary calculus. The double-J tube comprises a pelvis-end elastic ring, a bladder-end elastic ring and a catheter. The pelvis-end elastic ring andthe bladder-end elastic ring are arranged at the two ends of the catheter respectively. A plurality of side holes are formed in the double-J tube at intervals and are communicated with a central channel in the double-J tube. A spiral ridge is arranged on the catheter and has a bent cross section, so that a calculus slideway is formed between the spiral ridge and the outer surface of the catheter.The catheter is connected with the pelvis-end elastic ring in a rotating mode and the catheter can rotate relative to the pelvis-end elastic ring. A magnet is arranged at the position, farthest away from the axis of the catheter, of the bladder-end elastic ring and is used for matching an external object, so that the catheter can rotate relative to the pelvis-end elastic ring. According to the invention, the double-J tube f has rotating and creeping functions by changing the shape of the double-J tube; the urinary calculus removing rate can be increased and can be discharged out of a body as soon as possible.

Description

technical field [0001] The invention relates to the technical field of double J tubes, in particular to a stone-discharging double J tube. Background technique [0002] Double J tube is widely used in urological surgery. It is suitable for upper urinary tract operations such as kidney stones, ureteral stones, and hydronephrosis, as well as the treatment of lithotripsy and expansion of ureteral strictures. After it is implanted in the ureter, it can It plays an important role in draining urine and preventing ureteral stricture and adhesion blockage. [0003] So far, the solutions for calculus discharge are mainly in terms of crushing stones and promoting ureteral peristalsis. The built-in double J tube will narrow the ureteral space while draining and supporting, so that the volume of calculi that can be discharged is reduced. Therefore, the stone removal rate will be reduced. Contents of the invention [0004] In order to solve the problems existing in the prior art, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61B17/22
CPCA61M25/0043A61M25/0068A61B17/22A61B2017/22038
Inventor 刘磊齐晨蕊王军
Owner 王军
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