Magnetic resonance imaging (MRI) compatible needle knife

A magnetic resonance imaging, needle-compatible technology, applied in the field of medical devices, can solve problems such as judgment and inability to observe the lesion area.

CN101711700BInactive Publication Date: 2012-11-14SIEMENS AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2012-11-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a magnetic resonance imaging compatible needle knife, which comprises a needle knife handle, a needle knife body and a needle knife head. The needle knife body and the needle knife head are made of a paramagnetic metal material, and a layer of diamagnetic metal material coat is coated on the paramagnetic metal material. In the needle knife, because the diamagnetic metal material coat can counteract the magnetization effect of an external magnetic field on the paramagnetic metal material, the paramagnetic metal material does not cause the magnetic distortion of magnetic resonance equipment, and meanwhile does not produce artifacts in scanned images. Moreover, because the paramagnetic and diamagnetic metal materials consist of metal elements, the mechanical propertiesof the needle knife body and the needle knife head can be ensured so as to meet the requirement of needle knife operations.
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Description

technical field

[0001] The invention designs a medical device, in particular to an MRI compatible needle knife for magnetic resonance imaging. Background technique

[0002] A kind of needle knife is disclosed among the Chinese patent 98208305. This acupotomy organically integrates the surgical treatment method of Western medicine and the acupuncture treatment method of Chinese medicine in the treatment of diseases, and turns the open operation of Western medicine into a closed operation. Needle-knife surgery can not only achieve the purpose of cutting, loosening, peeling, and clearing the lesion, but also does not need to cut the skin and related tissues, and avoids the sequelae and complications of surgery, thus becoming a clinically applicable, An operational medical technology.

[0003] However, due to the characteristics of closed surgery such as needle-knife surgery, doctors cannot directly see the lesion during the operation, so needle-knife surgery requires doctors ...

Examples

Embodiment Construction

[0022] The magnetic resonance imaging compatible needle knife of the present invention comprises: a needle knife handle, a needle knife body and a needle knife head; wherein, the needle knife body and the needle knife head are made of a paramagnetic (paramagnetism) metal material; and, the paramagnetic metal The material is coated with a layer of diamagnetism metal material coating.

[0023] In the present invention, in order to make the needle knife compatible with the nuclear magnetic resonance equipment while maintaining the required mechanical properties of the needle knife, the needle knife body and the needle knife head are designed as the above-mentioned double-layer structure. In this way, when performing magnetic resonance imaging-guided acupotomy surgery, the coating of the diamagnetic metal material on the needle-blade body and the needle-blade head entering the imaging area will cancel the magnetization of the paramagnetic metal material by an external magnetic fiel...