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A device for preventing transfer of needle track planting

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

Active Publication Date: 2021-09-21
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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  • A device for preventing transfer of needle track planting
  • A device for preventing transfer of needle track planting
  • A device for preventing transfer of needle track planting

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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] like 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] like figure 1 As shown, the housing 1 ...

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Abstract

The invention relates to a device for preventing implantation and transfer of needle tracts, comprising a casing and a puncture needle, the casing is used to insert needles layer by layer along a predetermined puncture path in the normal bone tissue of a patient until reaching the edge of a lesion; the puncture The needle is inserted into the shell, and the top of the puncture needle can pass through the top of the shell and enter the tumor tissue for biopsy. After the material is taken out, the puncture needle is pulled out. The needle takes out the obtained diseased tissue; 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. Because the device contacts the non-tumor tissue in the outer shell, the puncture needle that touches the tumor tissue is located in the outer shell, which can fundamentally prevent needle track transfer in biopsy.

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 Patents(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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