Device for preventing tumor from spreading after bone tumor biopsy

A diffusion device and bone tumor technology, applied in the medical field, can solve the problems of accelerating tumor diffusion, enlarging incisions, and difficult to remove the plugging cement, and achieving the effects of reducing pollution, reducing difficulty, and preventing falling off.

Pending Publication Date: 2019-02-15
马益民
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  • Abstract
  • Description
  • Claims
  • Application Information

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 t

Method used

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  • Device for preventing tumor from spreading after bone tumor biopsy
  • Device for preventing tumor from spreading after bone tumor biopsy
  • Device for preventing tumor from spreading after bone tumor biopsy

Examples

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:

[0019] A device for preventing tumor spread after bone tumor biopsy is a blocking device composed of a blocking screw 1 and a blocking screw rod 2 .

[0020] The head of the plugging screw 1 is a tapered lead-in end 11 , and the tail of the plugging screw 1 is a stepped end cap 12 . The outer diameter of the sealing screw 1 is generally 1mm larger than that of a biopsy needle or a hollow drill. The outer wall of the sealing screw 1 is processed with a titanium alloy external thread 13, and the external thread 13 is a self-tapping thread, which is convenient for use on the bone surface of the biopsy channel. form tight connections. The end face of the step end cap 12 is provided with a cross groove 18, which is convenient for screwing the plugging screw 1 into the pinhole with a screwdriver. There is a tapered surface 14 transition between t...

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): A61B10/02A61B90/00
CPCA61B10/025A61B90/08A61B2090/0815
Inventor 马益民
Owner 马益民
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