Separation device for flue gas and perfusate

Abstract

The invention discloses a separation device for fume and perfusate. The separation device comprises a columnar separation chamber with an inner cavity, wherein the top end of the separation chamber is sealed; a filtering net is mounted at the bottom end of the separation chamber; a collecting tube for introducing the fume and the perfusate into the inner cavity is arranged on the top end of the separation chamber; a negative pressure tube which is connected with a negative pressure machine is further arranged on the top end of the separation chamber; U-shaped guide grooves are formed in the circumferential wall of the inner cavity from top to bottom in a spiral manner; the upper ends of the guide grooves are communicated with the collecting tube; the lower ends of the guide grooves are close to the filtering net. The collecting tube of the separation device can be connected with a resectoscope sheath discharge interface in a sealed manner, and the negative pressure tube is connected with a negative pressure machine in an operation center. In the transurethral operation process, as the fume is generally not dissolved in the perfusate, a mixture of the fume and the perfusate is fed into the separation chamber from the collecting tube and flows from top to bottom along the spiral guide grooves in the separation chamber, the retaining time of the mixture inside the separation chamber is prolonged, the fume and the perfusate can be sufficiently separated, the fume is further sucked out through negative pressure, and thus the condition that no fume is generated in the operation process is ensured.

Description

technical field [0001] The invention relates to the field of separation of smoke and perfusate during minimally invasive surgery in urology, in particular to a separation device for smoke and perfusate. Background technique [0002] Transurethral resection is a routine surgical method for minimally invasive treatment of benign prostatic hyperplasia and superficial bladder tumors in urology. During the operation, continuous infusion of normal saline or mannitol liquid is used to keep the operative field clear. Bladder tumor tissue achieves the purpose of treatment. A large amount of toxic and harmful fumes will be produced during resection. Most of the fumes are insoluble in the perfusion fluid, and are discharged from the discharge channel of the resectoscope sheath along with the perfusion fluid and released into the operating room with independent laminar flow. These toxic fumes include 1,3-butadiene, vinyl acetylene, ethyl acetylene, acrylonitrile, pentafluoroethane, ace...

AI Technical Summary

Problems solved by technology

If the operator engages in this type of operation for a long time, it will inevitably cause serious occupational hazards, and also cause potential harm to patients in the operating room and other medical staff

In addition, if the operator inhales too much toxic gas in the operating room in a short period of time, it will cause discomfort and fatigue, increase unpredictable surgical risks, and even endanger medical production safety.

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