Clinical sampling device for lung cancer tumours

Abstract

The invention discloses a clinical sampling device for lung cancer tumours in the technical field of medical instruments. The clinical sampling device comprises a main connecting pipe, a blockage alarm cavity, an alarm valve assembly and the like; when a lung cancer tumour sample is sucked and a puncture needle tube is blocked by tissue, suction is continued, so that certain negative pressure is formed in the whole sampling device; when the external air pressure is greater than the internal air pressure of the sampling device, a blockage plug is pushed away by the external air pressure; the external air enters the blockage alarm cavity from an air inlet; an air inlet pressure sensor in the blockage alarm cavity senses an air inlet signal and transmits the air inlet signal to an external display device; at the moment, alarm is triggered, so that an operator can know that the puncture needle tube is blocked; when the needle tube needs to be moved out, blocked tissue is discharged throughpositive pressure; then other tissue is continuously sucked; due to arrangement of the alarm valve assembly, the operator can be reminded to know that the puncture needle tube is blocked in time; suction negative pressure is prevented from being continuously increased; and the situation that surrounding tissue is damaged due to excessive force is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a clinical sampling device for lung cancer tumors. Background technique [0002] The incidence of malignant tumors in my country is on the rise, and it is one of the main causes of death, which has become a tumor that seriously endangers human life and health. The early onset of tumors can greatly improve the survival rate of tumor patients. The commonly used inspection instruments for tumor diagnosis in clinic include B-ultrasound, CT and nuclear magnetic resonance. Reflected to the computer, the digital image is processed by the computer to obtain the tumor image. Although the nature of the tumor can be judged by testing the substances secreted by the tumor tissue, the final determination of the nature of the lesion still requires the pathological diagnosis of the lesion tissue, and the final diagnosis of the lesion can be clarified by finding the lesion cells under a ...

AI Technical Summary

Problems solved by technology

Biopsy includes two forms of puncture cutting and open biopsy. Clinically, puncture needles are often used to obtain tumor tissue samples. The puncture currently used is difficult to effectively sample tumor tissues. Tissues are strenuous. At this time, if the suction negative pressure is increased, it is easy to cause excessive force to damage the surrounding tissues.

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