Disposable specimen taking-out device under cystoscope, ureteroscope and nephroscope

Abstract

The invention relates to a disposable specimen taking-out device under a cystoscope, a ureteroscope and a nephroscope. The specimen taking-out device is composed of an inner sleeve, a push-pull rod, a handle, a metal ring and a filtering object taking-out bag. The length of the inner sleeve is greater than that of a cystscope sheath, the length of the push-pull rod is greater than that of the inner sleeve, one end of the push-pull rod is provided with the handle, the other end is provided with the metal ring, the metal ring is sleeved by the filtering object taking-out bag, the filtering object taking-out bag only can filter liquids and cannot filter tumor cells and tissues, the metal ring is elastic, the push-pull rod, the metal ring and the filtering object taking-out bag can be placed in the inner sleeve, and when the metal ring is pushed out from the inner sleeve, the metal ring is expanded so as to open the bag mouth of the filtering object taking-out bag. The disposable specimen taking-out device provided by the invention has the following advantages: compared to the prior art, the disposable specimen taking-out device is reasonable in structural design, can effectively take operation specimens completely out of bladders, ureters or renal pelvis and renal calyces, does not cause avulsion when the specimens are taken out, is more convenient and rapid to take the specimens out, takes out the specimens completely without residuals, and improves the efficiency and the treatment effect of an operation.

Description

technical field [0001] The invention relates to a one-time-used specimen fetching device, in particular, a device for taking surgical tissue specimens under cystoscope, ureteroscope and nephroscope. Background technique [0002] The tissue samples produced in people's cystoscope, ureteroscope, nephroscope operation process need to be taken out of the human body, and the prior art uses grasping forceps to clamp, and its defect is: 1, it is difficult to take out for larger samples (cannot One-time complete removal), easy to tear off (resulting in residue and tumor implantation), requires repeated grasping, increases the difficulty of the operation, prolongs the operation time, and reduces the efficiency of the operation; 2. The grasping forceps may easily cause the resected specimens to scatter and cannot be completely removed , especially for tumor specimens, the existing methods violate the principle of complete tumor resection. If the remaining tissue is planted and spread ...

AI Technical Summary

Problems solved by technology

[0002] The tissue samples produced in people's cystoscope, ureteroscope, nephroscope operation process need to be taken out of the human body, and the prior art uses grasping forceps to clamp, and its defect is: 1, it is difficult to take out for larger samples (cannot One-time complete removal), easy to tear off (resulting in residue and tumor implantation), requires repeated grasping, increases the difficulty of the operation, prolongs the operation time, and reduces the efficiency of the operation; 2. The grasping forceps may easily cause the resected specimens to scatter and cannot be completely removed , especially for tumor specimens, the existing methods violate the principle of complete tumor resection, if the remaining tissue is planted and spread in the bladder, it is easy to cause tumor recurrence and metastasis, and the ideal surgical effect cannot be achieved

About cystoscope of the present invention, ureteroscope, disposable specimen fetching device under nephroscope, there is no report at present

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