Negative pressure suction type tumor effusion extraction device

Abstract

The invention relates to the technical field of tumor treatment equipment, in particular to a negative pressure suction type tumor effusion extraction device which comprises a box body and a flow guide mechanism, a liquid storage bottle and a negative pressure generation mechanism are arranged in the box body, and the negative pressure generation mechanism comprises a driving motor, a transmission assembly and an air bag; the driving motor is fixedly connected with the box body, the transmission assembly comprises a cam, a guide pin and an adapter plate, a guide groove is formed in the side end face of the cam, the guide pin is in sliding fit with the guide groove, the guide pin is fixedly connected with the adapter plate, and a push plate connected with the adapter plate is arranged on one side of the air bag and is in sliding connection with the inner wall of the box body. A fixing plate fixedly connected with the box body is arranged on the other side of the air bag, an exhaust port of the air bag is led out of the box body through a first hose, an air inlet of the air bag is connected with an exhaust port of the liquid storage bottle through a second hose, and one-way valve sets are arranged on the first hose and the second hose. According to the device, effusion can be slowly and continuously extracted, and damage to a human body caused by long-time too large negative pressure is avoided.

Description

technical field [0001] The invention relates to the technical field of tumor treatment equipment, in particular to a negative pressure suction type tumor effusion extraction device. Background technique [0002] Tumor is a cell under the action of carcinogenic factors, the gene is changed, and the normal regulation of its growth is lost, resulting in monoclonal abnormal proliferation and the formation of a local mass. Pleural effusion is a common complication in cancer patients. When cancer cells infiltrate into the pleural cavity and spread to the pleura, fluid will accumulate in the space between the visceral pleura and the parietal pleura, which is called pleural effusion. Under pathological conditions, such as advanced tumor patients, due to the spread of tumor cells to the pleura, resulting in long-term and continuous stimulation, tumors in various parts of the body will produce effusions. Clinical symptoms. Therefore, it is necessary to extract and treat the effusion...

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to extract and treat the effusion in the body of tumor patients in a timely manner. The current method of extracting tumor effusion is to puncture the cavity of the effusion position with a syringe to extract it. However, since the tumor effusion is constantly generated, for some In the case of extracting effusion, the medical staff need to extract it from time to time, which not only increases the workload of the medical staff, but also may cause danger if the extraction is not timely. Therefore, a negative pressure pump is usually used for extraction. However, the soft catheter of the existing negative pressure extraction device cannot penetrate into the tumor tissue accurately and effectively. The continuous operation of the negative pressure pump may easily cause excessive internal negative pressure, which may cause damage to body tissues or tumor parts.

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