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Device for preventing needle passage implantation metastasis

A needle track and needle body technology, which is applied in the field of clinical medicine to achieve the effect of preventing tumor needle track implantation and metastasis and preventing needle track transfer.

Active Publication Date: 2021-01-29
PEKING UNIV THIRD HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a novel CT-guided puncture biopsy device for preventing needle tract implantation and metastasis of bone tumors, so as to solve the problem of needle tract implantation and metastasis in percutaneous puncture biopsy equipment

Method used

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  • Device for preventing needle passage implantation metastasis
  • Device for preventing needle passage implantation metastasis
  • Device for preventing needle passage implantation metastasis

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Experimental program
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Embodiment Construction

[0025] Hereinafter, the present invention is described in more detail to facilitate understanding of the present invention.

[0026] Such as Figure 1 to Figure 3 As shown, the device for preventing needle track planting transfer according to the present invention includes a casing 1 and a puncture needle 4, and the casing 1 is used to insert the needle layer by layer along a predetermined puncture path in the patient's normal bone tissue until reaching the edge of the lesion The puncture needle is inserted into the shell, and the top of the puncture needle can pass through from the top of the shell and enter the tumor tissue for biopsy. After the material is drawn, during the process of pulling out the puncture needle, The obtained diseased tissue is taken out by the puncture needle; the shell is further used to prevent the puncture needle from contacting the non-tumor tissue during the process of pulling out the puncture needle.

[0027] Such as figure 1 As shown, the hous...

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Abstract

The invention relates to a device for preventing needle passage implantation metastasis, which comprises a shell and a puncture needle, and is characterized in that the shell is used for performing layer-by-layer needle insertion along a preset puncture path in normal bone tissue of a patient until reaching the lesion edge; the puncture needle is inserted into the shell, the top end of the puncture needle can penetrate out of the top end of the outer shell and enter tumor tissue to conduct sampling of needle biopsy, and after sampling is completed, in the process of pulling out the puncture needle, the puncture needle brings out lesion tissue obtained through sampling; and the shell is further used for preventing the puncture needle from making contact with non-tumor tissue in the processof pulling out the puncture needle. Due to the fact that the whole process that the device makes contact with non-tumor tissue is the shell, the puncture needle making contact with the tumor tissue islocated in the shell in the whole process, and needle passage metastasis caused by needle biopsy can be fundamentally eradicated.

Description

technical field [0001] The invention relates to the technical field of clinical medicine, in particular to a device for preventing implantation and transfer of needle tracts. Background technique [0002] Puncture biopsy is the main method for obtaining histopathological diagnosis of bone and soft tissue tumors. Puncture biopsy is a pathological examination, which is the gold standard for the diagnosis of benign and malignant tumors and specific pathological classification, and is also an indispensable and necessary diagnostic step before tumor treatment. Moreover, this operation is relatively safe. [0003] CT-guided percutaneous biopsy usually selects the puncture point on the skin of the lesion through imaging preoperative planning, routine disinfection and local anesthesia, and uses an 11G bone biopsy needle to puncture and hit the lesion layer by layer in the shortest and safest way, and then passes through the bone biopsy. The biopsy needle comes with a sampling devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02
CPCA61B10/025
Inventor 田帅欧阳汉强袁慧书
Owner PEKING UNIV THIRD HOSPITAL
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