A mechanism for marking tumor borders on biopsy needles

Abstract

The invention discloses a mechanism capable of marking a tumor boundary used for a biopsy needle. The biopsy needle comprises a biopsy needle tube and a sample receiving member movably arranged in the biopsy needle tube. The sample receiving member is provided with a sampling receiving concave opening. The mechanism is arranged in the sampling receiving concave opening. The mechanism comprises an ejection chamber and a marker arranged in the ejection chamber. When the ejection chamber extends out of the front end of the biopsy needle tube along with the sampling receiving concave opening, the marker is ejected from the ejection chamber. The mechanism capable of marking the tumor boundary used for the biopsy needle has the advantages that the structure is simple, the mechanism is convenient to install into an existing biopsy needle, former operation methods and processes are not needed to be changed when using the mechanism, the implantation of the marker is completed while sampling, and no additional operation is needed. By arranging the marker, a tumor positioning and tracking process is easier, the mechanism is beneficial to conducting tumor data sampling and researching during a therapeutic process, and is applicable to various kinds of tumors which can be sampled through puncture such as a breast tumor, a liver tumor and a lung tumor.

Description

technical field [0001] The invention relates to a medical operation instrument, in particular to a mechanism for marking tumor boundaries on a biopsy needle. Background technique [0002] Biopsy needle is a commonly used preoperative instrument, which can be used for biopsy sampling and cell aspiration of solid tumors, and is an important tool for clinical pathological diagnosis. [0003] For some tissue masses, such as breast lumps, biopsy can be performed before surgery to confirm the pathological diagnosis. The needle biopsy has less damage to the tumor tissue, and the tumor mass can not be touched during the operation, so as to avoid the remaining and shedding of tumor cells in the local area, and shorten the operation time. If the preoperative needle biopsy is a malignant lesion, it not only provides a basis for further treatment, but also helps doctors and patients to discuss surgical treatment methods, such as whether to adopt breast-conserving surgery. [0004] Aft...

AI Technical Summary

Problems solved by technology

[0005] The current problem is that for tumors that are biopsied and treated with drugs, they cannot be effectively and accurately located in the subsequent treatment process, and some tumors change in position and size, and may even disappear, but these data cannot be quantified conveniently , is not conducive to the treatment and research of tumors

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