A multi-claw conformal ablation needle with nested structure
An ablation needle and nested technology, applied in the field of medical devices, to achieve the effect of improving ablation curative effect and enhancing boundary ablation effect
Active Publication Date: 2021-06-11
HUAZHONG UNIV OF SCI & TECH +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides a multi-claw conformal ablation needle with a nested structure, thereby solving the technical problem existing in the prior art that active deformation cannot be produced according to needs
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0035] Such as figure 1 As shown, the rigid puncture outer sheath 3 and the rear handle 5 are affixed together through the outer sheath fixing member 4 . The flexible ablation electrode 1 passes through the electrode sheath 2 to form a sliding fit, and is located in the positioning tube 3.2 inside the rigid puncture sheath 3 as a whole. The flexible ablation electrode is fixedly connected to t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a multi-claw conformal ablation needle with a nested structure, which belongs to the technical field of medical devices and includes: a flexible ablation electrode, an electrode outer casing, an electrode outer casing slider, and an electrode slider. The electrode outer casing It is connected with the slider of the electrode outer casing, and the slider of the electrode outer casing is used to drive the electrode outer casing to move axially; the flexible ablation electrode is connected with the electrode slider after passing through the electrode outer casing, and the electrode slider is used to drive the flexible ablation electrode Perform axial movement; through the axial movement of the flexible ablation electrode and the electrode sheath, the position and posture of the end of the flexible ablation electrode can be adjusted. A multi-claw conformal ablation needle with a nested structure proposed by the present invention can drive the electrode outer sleeve and the flexible ablation electrode to move axially through the electrode outer sleeve slider and the electrode slider, and then adjust the position of the end of the ablation electrode in the tissue The position and shape of the multi-claw conformal ablation needle can adapt to various shapes when the ablation electrode is working.
Description
technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a multi-claw conformal ablation needle with a nested structure. Background technique [0002] In 2015, approximately 90.5 million people worldwide were diagnosed with cancer. There are about 14.1 million new cancer cases and about 8.8 million deaths every year. It is an important cause of human death. Radiofrequency ablation, as a minimally invasive treatment with less damage and faster recovery, is an important treatment for many cancers, such as lung cancer, liver cancer, prostate cancer, kidney cancer, breast cancer and so on. [0003] The principle of radiofrequency ablation is to form a loop between the ablation electrode on the radiofrequency ablation needle and the human epidermis, and use the high-frequency radiofrequency current signal to drive the ions in the human tissue to reciprocate and vibrate, and various ions and other particles will rub ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/14A61B2018/1422A61B2018/1465A61B2018/1467
Inventor 吴志刚吴康吕良雄胡增辉梁华庚章小平
Owner HUAZHONG UNIV OF SCI & TECH