Broken stone collection and filtration device with convection negative-pressure channel

Abstract

The invention discloses a broken stone collection and filtration device with a convection negative-pressure channel, and relates to the technical field of medical equipment. The broken stone collection and filtration device comprises a broken stone collection and filtration device and a negative-pressure collection system, wherein the broken stone collection and filtration device comprises a cavity formed by connecting an upper cavity body and a lower cavity body through threads; the upper cavity is provided with a connector communicated with a broken stone mixed solution outlet; the cavity is internally provided with a filtering column with one end stretching out of the lower cavity body; a plurality of through holes with pore diameters which are gradually reduced are formed in a column body of the filtering column; the negative-pressure collection system comprises a main negative-pressure bottle communicated with a negative-pressure source, a sedimentation bottle communicated with the main negative-pressure bottle, and a negative-pressure buffering bottle; a mixed solution inputting pipe and a flow fine tuning valve are arranged at the upper part of the sedimentation bottle, and a storage bottle is communicated with the lower part of the sedimentation bottle; the negative-pressure buffering bottle is communicated with the sedimentation bottle and the storage bottle. By adopting the broken stone collection and filtration device disclosed by the invention, the problems that tangible things in a mixed solution flowing out in a stone surgery are easily mutually stuck and accumulated on a filter screen and blocking is caused, so that a negative-pressure suction force in a surgery pipeline is weakened and even disappeared are solved, and definitely effective and visible continuous negative-pressure suction is kept.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a surgical device for laparoscopic treatment of kidney stones and ureteral stones. Background technique [0002] The urinary tract is the detoxification system of the human body. There are many toxins and sediments in the urine. The urine enters the urinary tract through the filtration of the kidneys. During this metabolic process, the kidneys and the urinary tract often form sediments, which will cause kidney damage for a long time. and urolithiasis. In urological surgery for removal of kidney stones, a device such as figure 1 The lithotripsy is carried out with the advanced urological laparoscopic surgical instrument. After the lithotripsy, the method of convective flushing and negative pressure suction must be used to remove the lithotripsy. The process is the continuous repetition of gravel-convective flushing-negative pressure suction. The most important point of ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a convective negative pressure channel crushed stone filter device, which can solve the problem that the visible matter in the mixed liquid flowing out from the suction channel of the urological laparoscopic surgical instrument after the stone is crushed in the calculus operation Mutual adhesion and accumulation at the filter screen, resulting in blockage leading to negative pressure instability and disappearance, which affects the operation and increases the risk of surgery

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