Ablation needle component and ablation system

Abstract

The invention provides an ablation needle component and an ablation system. The ablation needle component comprises a hollow outer sleeve and an ablation needle, wherein the outer sleeve movably sleeves outside an electrode needle main body of the ablation needle and is connected with an ablation handle in a detached and rotating manner, so that the ablation needle can be separated from the outersleeve after an ablation operation is completed, the outer sleeve is still kept in a tissue, a channel is provided for other operations, such as biopsy, repeated puncture is avoided, damages on tissues are reduced, and the biopsy operation can be convenient and efficient. Furthermore, the ablation handle is in rotating connection with the outer sleeve, the electrode needle main body can be drivento rotate relative to the outer sleeve when the ablation handle rotates relative to the outer sleeve, which means that the outer sleeve and the electrode needle main body are not of an integral structure, and the outer sleeve can be kept standing still when the ablation needle should be rotated, so that damages on tissues can be reduced, and the rotating resistance is relatively small. Therefore,the ablation needle component and the ablation system are especially applicable to radiofrequency ablation treatment of hypertrophic cardiomyopathy.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an ablation needle assembly and an ablation system. Background technique [0002] In the prior art, for the diagnosis of tumors in the liver, kidney, soft tissue, etc., a biopsy needle can be punctured to the lesion, and a small amount of tissue at the lesion can be obtained for pathological analysis. For the treatment of such lesions, a radiofrequency ablation needle or a microwave ablation needle can be inserted into the lesion, and the radiofrequency energy or microwave energy can cause high temperature in the local tissue of the lesion, causing coagulation necrosis of the lesion tissue to achieve the therapeutic purpose. [0003] Hypertrophic cardiomyopathy (HCM for short) is a common autosomal dominant cardiovascular disease with an incidence rate of about 1:500 in the general population and a case fatality rate of about 1.4%-2.2%. The natural history of HCM varies ...

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, as a minimally invasive interventional therapy device, radiofrequency ablation needles or microwave ablation needles are currently mainly used to treat tumors in the liver, kidney, soft tissue, etc., and most of the existing ablation needles are integrated. Other operations such as biopsy are required before and / or after ablation, and multiple punctures are required, which is difficult to puncture and aggravates the damage to the tissue

In addition, if the ablation needle needs to be rotated during the ablation operation, since the part where the ablation needle inserts into the tissue is directly covered by the tissue, not only is it difficult to rotate, but it will also cause damage to the tissue

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