Device for preventing tumour diffusion after bone tumor biopsy

A diffusion device and technology for bone tumors, applied in bone implants, medical science, prostheses, etc., can solve the problems of tumor spread and affect treatment, and achieve the effect of improving local symptoms, relieving the disease, and preventing local spread and metastasis

Inactive Publication Date: 2008-08-20
程雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 th

Method used

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  • Device for preventing tumour diffusion after bone tumor biopsy

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Experimental program
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Effect test

Embodiment 1

[0012] Embodiment 1: As shown in Figure 1, the device for preventing tumor spread after bone tumor biopsy includes a blocking body 1 used to block the puncture needle path after biopsy, and the blocking body 1 is expandable by absorbing water material with threads on the outer surface.

[0013] One end of the blocking body 1 is the blocking end 2, and the maximum diameter of the blocking end 2 is smaller than the diameter of the puncture needle track. An anticancer drug layer 6 is coated on the blocked end.

[0014] The other end of the blocking body 1 is the operating end 3, which is provided with a hexagonal socket 4 for inserting an operating wrench along the axial direction of the blocking body; the maximum diameter of the operating end 3 is larger than the diameter of the puncture needle track. The jack also can be replaced by a prismatic plug handle, and the plug handle is integrated with the operating end. But the jack is easier to process, so the jack is preferred. ...

Embodiment 2

[0020] Embodiment 2: As shown in Figure 2, the difference between this embodiment and Embodiment 1 is that a through hole is arranged in the axial direction in the plugging body, and a catheter 7 is inserted in the through hole, wherein one end of the catheter protrudes Outside the operating end 3 and the end is provided with a sealing cover 9; the other end of the conduit stretches out from the blocking end 2 and is provided with a plurality of medicine outlet holes 8 on the side wall of the end, and each medicine outlet hole is preferably according to Different heights and different direction distribution settings.

[0021] The device is indicated for bone tumors that cannot be surgically removed.

[0022] After the needle channel is inserted into the blocking main body, the end of the catheter protruding from the operating end 3 is sealed with a sealing cap 9 and left outside the skin for future use. After the pathological results of the biopsy are confirmed, when sensitiv...

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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...

Claims

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Application Information

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IPC IPC(8): A61B17/56A61F2/28A61L31/14A61L27/50A61M35/00
Inventor 程雷谢青聂林
Owner 程雷
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