Device for preventing tumour diffusion after bone tumor biopsy

A diffusion device, bone tumor technology, applied in bone implants, medical science, prosthesis, etc., can solve problems such as affecting treatment and tumor proliferation, and achieve the effect of relieving the disease, improving local symptoms, and simple and convenient injection operation.

Inactive Publication Date: 2009-07-22
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 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.

Method used

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  • Device for preventing tumour diffusion after bone tumor biopsy

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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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PUM

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Abstract

A device for preventing tumor spread after bone tumor biopsy, which belongs to medical equipment, includes a blocking body used to block the puncture needle path after biopsy, the blocking body is made of water-absorbing and expandable materials, and the outer surface Threads are provided; one end of the blocking body is the blocking end, and the maximum diameter of the blocking end is smaller than the diameter of the puncture needle; the other end of the blocking body is the operating end, and the operating end is provided with a device that can move along the axial direction of the blocking body. Insert the socket or handle of the operation wrench; the maximum diameter of the operation end is larger than the diameter of the puncture needle; the middle part of the plugging body is a concave connecting column, and the connecting column, the blocking end and the operating end are all Smooth transition; the blocking end is coated with an anticancer drug layer. It blocks the needle track left by puncture after biopsy, which can prevent local diffusion and metastasis caused by the outflow of tumor from the needle track to the surrounding of the puncture port, and has a simple structure and is easy to operate.

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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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/56A61F2/28A61L31/14A61L27/50A61M35/00
Inventor 程雷谢青聂林
Owner 程雷
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