Tumor puncture sampling device

Abstract

The invention discloses a tumor puncture sampling device which is structurally characterized in that a puncture tube is fixed on the bottom surface of a shell. The inner cylinder is vertically arranged in the shell, and an upper end opening of the inner cylinder is located in the top face of the shell. The sampling tube is vertically inserted into the inner cylinder and is detachably connected with the inner cylinder. The lower end of the push rod penetrates through the sampling tube and then is connected with the piston, and the sampling needle is fixed on the piston. The upper and lower ends of the first elastic piece are respectively connected with the top surface of the sampling tube and the piston. The stabilizing piece is fixed behind the inner cylinder in the shell, the lower end of the trigger rod penetrates through the top face of the shell and the stabilizing piece and then is connected with the cone, and a circle of groove is formed in the side wall of the cone. The upper end and the lower end of the second elastic piece are connected with the trigger rod and the stabilizing piece respectively. The shearing piece is arranged below the stabilizing piece, and an opening for the cone to enter and exit is formed in the bottom face of the shell. According to the sampling device, tumor tissue collected on the sampling needle can be rapidly cut off after sampling, the pulling and breaking processes are reduced, the pain of a patient is relieved, and the sampling process is more efficient and convenient.

Description

Technical field [0001] The present invention relates to the field of tumor sampling techniques, in particular to a tumor aspiration sampling apparatus. Background [0002] Tumor refers to the mass mass protrusion formed by the body under the action of various tumorigenic factors in local tissue cell proliferation. With the acceleration of people's pace of life, the increase in life pressure and irregular diet, the incidence of various tumor diseases has been rising in recent years. Tumor biopsy is a pathological examination of tumor tissue to further clarify the pathological diagnosis method of tumor. Tumor tissue is generally obtained by puncturing the patient's place of sampling by a puncture device and then sent for pathological examination. [0003] At present, the common method of tumor tissue sampling is mainly to use the barb on the needle in the needle to hook the tumor tissue and pull it out, and then pull the tumor tissue off while pulling out the needle. However, this ...

AI Technical Summary

Problems solved by technology

However, this sampling method is easy to expand the trauma surface of sampling due to pulling the tumor tissue, which brings great pain to the patient, and at the same time, it is easy to cause a large area of ​​bleeding at the sampling site, causing the patient's resistance to sampling, which is not conducive to the treatment of the patient.

In this case, doctors often need to operate carefully to reduce the pain of patients, which leads to the time-consuming and labor-intensive sampling process and low efficiency

In addition, after the existing sampling device takes out the tumor tissue from the patient, because the tumor tissue is easily stuck in the groove of the sampling device, it is inconvenient to remove the tumor tissue from the sampling device, which also affects the sampling efficiency.

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