Pleuroperitoneal effusion sampling device

Abstract

The invention discloses a pleuroperitoneal cavity effusion sampling device, belongs to the technical field of medical instruments, and particularly relates to a pleuroperitoneal cavity effusion sampling device which solves the problems that when a sampler in the prior art is used for extraction, the sampling depth is not easy, the fixing pressure is not stable, the single sampling amount is small, and a sample is prone to being polluted during extraction by a doctor, and according to the technical scheme, the pleuroperitoneal cavity effusion sampling device comprises a sampling barrel, a sampling needle penetrates through the bottom of the sampling barrel, a sample extraction mechanism for providing negative pressure and a sample collection mechanism are further arranged in the sampling barrel, and a fixed anti-shake mechanism is fixedly arranged outside the sampling barrel. The objective of the invention is to improve the stability of sampling operation, and avoid too high extraction pressure and damage to cancer cells due to too high speed. Sufficient hydrops can be taken out at one time, so that the pain of a patient caused by repeated puncture sampling is avoided; and the diagnosis accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a pleural and peritoneal fluid sampling device. Background technique [0002] In the oncology department, malignant pleural effusion is a common complication of tumors and other diseases, and continues to break the thoracic and peritoneal barriers, resulting in continuous growth of pleural effusion, compression of organs, water and electrolyte disorders, hypoproteinemia and other serious complications. If it is found that there is effusion in the patient's chest and abdomen, the effusion can be extracted by puncture, and the tumor cells in the effusion can be checked. If there is a lot of effusion in the cavity, it is compressed to the lungs or the effusion takes too long, and the fibrinogen in it It is easy to be organized and two layers of pleural adhesions will occur, which will affect the respiratory function of the lungs. At this time, the patient's breat...

AI Technical Summary

Problems solved by technology

[0003] The current effusion extraction usually uses a piston-type vacuum tube to extract the effusion for pathological detection. Most doctors use ordinary syringes to puncture the chest and abdomen to extract and sample the effusion. Take the extraction of pleural effusion as an example. During the extraction, there are the following: Defects: 1) Because of the different depths of effusion, it is not easy for the doctor to fix the sampling depth during extraction, and it is easy to change the insertion depth of the sampling needle during the extraction operation, which affects the sampling effect; 2) The doctor uses a piston-type vacuum tube to extract cancer cells into the syringe , the pressure is unstable, which can easily lead to the rupture of cancer cells, thereby affecting the sampling effect; 3) When the demand for effusion is large, the amount of effusion sucked out by a common syringe at one time is not enough, and multiple puncture samples are required for the patient. Causes great pain 4) The effusion taken out each time lacks a separate storage device, but is generally stored in a drainage bag, which is likely to cause sample contamination

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