Device for preventing tumour diffusion after bone tumor biopsy

Abstract

The invention discloses a device used for preventing tumor spreading after bone neoplasms biopsy, belonging to the technological field of medical instruments, which comprises a plugging body used for plugging biopsy needle passage after biopsy is made; wherein, the plugging body is made of water absorbing expandable material; a plurality of screw threads are arranged at outer surface; one end of the plugging body is plugging end; the maximum diameter of the plugging end is smaller than the diameter of the biopsy needle passage; the other end of the plugging body is an operation end; a jack or an inserting handle grafting the operation wrench along axial direction of the plugging body is arranged on the operation end; maximum diameter of the operation end is bigger than the diameter of the biopsy needle passage; central section of the plugging body is inner concave type connection rod; smooth transition is adopted between the connection rod and the plugging end and the operation end; an anti-cancer drug layer is coated on the plugging end and is used for plugging the needle passage after biopsy is made. The device used for preventing tumor spreading has the advantages of preventing tumor from flowing out from the needle passage to the peripheral of puncturing site and from causing locally spreading and metastasizing, having simple structure and convenient operation.

Description

technical field [0001] The invention relates to a medical device, in particular to a device for preventing tumor spread after bone tumor biopsy. Background technique [0002] When performing a bone tumor biopsy, the bone tumor needs to be punctured first, and a needle tract will be left after the biopsy is taken. At present, if the left needle tract is left untreated, the tumor cells in the bone tumor will flow through the needle tract to around the puncture port , the formation of tumor spread, affect the treatment. At present, there is no device dedicated to blocking the needle path to prevent the tumor from spreading. Contents of the invention [0003] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a device for preventing tumor spread after bone tumor biopsy, which can block the needle tract left after biopsy and prevent tumor cells from locally spreading through the needle tract. . [0004] I...

AI Technical Summary

Problems solved by technology

[0002] When performing a bone tumor biopsy, the bone tumor needs to be punctured first, and a needle track will be left after the biopsy is taken. At present, if the left needle track is left untreated, the tumor cells in the bone tumor will flow to the surrounding of the puncture hole through the needle track , forming tumor spread, affecting treatment

At present, there is no device dedicated to blocking the needle path to prevent tumor spread.

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