Device for preventing tumor from spreading after bone tumor biopsy

Abstract

The invention provides a device for preventing a tumor from spreading after bone tumor biopsy. The device comprises an occlusion bolt and an occlusion screw, a self-tapping external thread is arrangedon the outer wall of the occlusion bolt, a hollow channel is formed in the occlusion bolt, an internal thread is arranged on the inner wall of the hollow channel, and the portion, from the head to the internal thread section, of the occlusion bolt is grooved into a plurality of sections. The outer diameter of the occlusion screw is larger than the inner diameter of the occlusion bolt, the occlusion screw is matched with the internal thread of the occlusion bolt, and the sections on the head of the occlusion bolt are swelled outwards to form fixation. By means of the technology, the contamination of the tumor to the peripheral tissue can be effectively reduced, convenience is brought to micro-invasive treatment of the tumor, and the difficulty that an occlusion device is taken out in a second operation is reduced.

Description

technical field [0001] The invention relates to the medical field, in particular to a device for preventing tumor spread after bone tumor biopsy. Background technique [0002] When doing bone tumor puncture or incision biopsy for bone tumor patients, it is necessary to puncture or drill the local bone surface of the bone tumor first, and leave a pinhole or hole in the local bone while obtaining the diseased tissue. At present, the needle passage of needle biopsy is generally not treated, and the passage caused by perforation is generally blocked with bone cement. Tumor cells in the lesion will flow around the puncture site with bleeding through the needle track left in the puncture, contaminate the surrounding soft tissue, and easily accelerate tumor spread, increasing the probability of tumor recurrence and metastasis. After cutting the drilled hole, the bone cement is blocked, and the plugging cement is easy to fall off, losing the plugging effect. Sometimes, in order to ...

AI Technical Summary

Problems solved by technology

Tumor cells in the lesion will flow around the puncture port through the needle track left by the puncture, contaminate the surrounding soft tissue, and easily accelerate tumor spread, increasing the probability of tumor recurrence and metastasis

After cutting the drilled hole, the bone cement is blocked, and the plugging cement is easy to fall off, losing the plugging effect. Sometimes, in order to prevent the cement from falling off, too much cement is filled in the hole, which makes it difficult to remove the plugging cement, and the filling of the plugging cement needs to be enlarged to a certain extent. Incision, which increases the difficulty of the second operation

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