Adjustable biopsy sampling device

Abstract

The invention discloses an adjustable biopsy sampling device. The adjustable biopsy sampling device comprises a base, an inner sampling needle, an outer sampling needle, an adjusting mechanism, a loading mechanism and a triggering mechanism. The adjusting mechanism can adjust the transmitting distance of the inner sampling needle and the outer sampling needle. After the transmitting distance is adjusted, the inner sampling needle and the outer sampling needle are loaded through the loading mechanism so that the inner sampling needle and the outer sampling needle can be in a to-be-transmitted state. In the to-be-transmitted state, the inner sampling needle and the outer sampling needle are transmitted into tissue to be sampled respectively to complete sampling through triggering of the triggering mechanism and under the common action of an inner needle transmitting spring, an inner needle transmitting block, an outer needle transmitting spring and an outer needle transmitting block. By means of the adjustable biopsy sampling device, a user can adjust the sampling length as needed, the effect of biopsy cannot be influenced when the surplus tissue is taken out, and the injury to a patient is relieved.

Description

technical field [0001] The invention relates to a biopsy sampling device for pathological examination, in particular to a fully automatic percutaneous puncture biopsy sampling device with adjustable sampling length. Background technique [0002] Pathological diagnosis using biopsy is the most reliable and effective method among many methods for the diagnosis of tumors and other diseases, and it is also often used as the final diagnosis method of diseases. In the prior art, biopsy sampling equipment is usually used for sampling. Existing cutting biopsy sampling equipment is roughly divided into three categories: manual, semi-automatic and automatic. [0003] In the process of biopsy sampling, on the one hand, due to the different thickness and size of lesion tissue in different patients; requirements. Manual and semi-manual devices mainly rely on the doctor to push the puncture needle by hand for adjustment and sampling, which requires a high degree of manipulation by the ...

AI Technical Summary

Problems solved by technology

[0003] In the process of biopsy sampling, on the one hand, due to the different thickness and size of lesion tissue in different patients; requirements

Manual and semi-manual equipment mainly rely on the doctor to push the puncture needle by hand to adjust and take samples, which requires a high degree of operation for the doctor, and it is difficult to control and operate with one hand. At the same time, it is difficult to ensure the accuracy of the sampling length during the pushing process

Although the automatic sampling equipment is simple and convenient to operate, it has the disadvantages that the doctor cannot accurately adjust the sampling length and the structure is complicated when sampling.

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