Bent adjustable cryoablation needle
An ablation needle and curved technology, which is applied in the field of curved adjustable cryoablation needles, can solve the problems of complicated treatment operations, easy injuries and surrounding healthy tissues, and achieve the effect of improving safety
Pending Publication Date: 2019-11-22
ACCUTARGET MEDIPHARMA (SHANGHAI) CO LTD
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a curved adjustable cryoablation needle to solve the technical problems of the existing cryoablation needles that the target area is fixed and the treatment operation is complicated and the surrounding healthy tissues are easily damaged
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 approach
[0073] As an embodiment, the sealing member 13 includes a sealing ring 131, an annular groove is formed on the inner wall of the needle bar 11 or the outer wall of the first straight pipe 213, and the sealing ring 131 is embedded in this groove, so The sealing ring 131 is dynamically sealed between the needle bar 11 and the first straight pipe 213;
[0074] As another embodiment, the sealing member 13 includes a sealing ring 131 and a sealing ring baffle, both of which are annular structures, and the sealing ring baffle is fixed on the needle bar 11 or On the first straight pipe 213, a groove for accommodating the sealing ring 131 is arranged on the sealing ring baffle, and when the sealing ring baffle is fixed on the needle bar 11, the groove faces the first straight pipe pipe 213, the sealing ring 131 is fixed in this groove and is close to the outer wall of the first straight pipe 213, to seal the gap between the needle bar 11 and the first straight pipe 213; when the seali...
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 relates to a bent adjustable cryoablation needle. The device comprises an adjusting part and a fixing part, the adjusting part can move relative to the fixing part to adjust a length ofa targeting area, the fixing part comprises a heat insulation pipe and an air return pipe, the heat insulation pipe is the bent pipe, and the air return pipe is inserted from the rear end of the heatinsulation pipe and fixedly connected with the heat insulation pipe; the adjusting part comprises a needle rod and an air inlet pipe fitting, and the needle rod is sleeved outside the front section ofthe heat insulation pipe and is in axial sliding connection with the heat insulation pipe; the air inlet pipe fitting is inserted from the rear end of the heat insulation pipe and extends into the needle rod; the air inlet pipe fitting is fixedly connected with the needle rod, the needle rod is in linkage with the air inlet pipe fitting to adjust the length of the targeting area, and the technical problems that the existing cryoablation needle is complex in treatment operation and prone to injuring surrounding healthy tissue due to the fact that the targeting area is fixed are solved.
Description
technical field [0001] The invention relates to a cryoablation needle, in particular to a curved adjustable cryoablation needle. Background technique [0002] Cryoablation, a treatment modality that uses low temperatures to destroy diseased tissue, is considered an efficient and minimally invasive method for treating malignant tumors. The cryoablation technique is easy to operate, has few complications, and is effective in analgesia. Moreover, the boundary of the ice ball formed by ablation is clear and easy to observe, and it can safely ablate lesions near large blood vessels or important organs. Cryoablation can also adopt the method of multi-needle freezing, so that the ablation range is wider, and it is suitable for large lesions and lesions with irregular shapes. [0003] The target area (that is, the effective freezing area) is located at the front of the cryoablation needle, and its length determines the size of the freezing range. The longer the target area, the lar...
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 IPC IPC(8): A61B18/02
CPCA61B18/02A61B2018/0231A61B2018/0293A61B2018/00577A61B2018/00791
Inventor 杨迟张瑞徐彬凯吴银龙常兆华
Owner ACCUTARGET MEDIPHARMA (SHANGHAI) CO LTD