Renal tissue fixing and dyeing device for renal artery radiofrequency ablation

Abstract

The invention discloses a renal tissue fixing and dyeing device for renal artery radiofrequency ablation, which comprises a fixing bottom plate, a renal artery adventitia unfolding module, a position limiting module and an auxiliary adjusting module, and is characterized in that the renal artery adventitia unfolding module is used for preliminarily unfolding clustered renal artery adventitia; the position limiting module is used for fixing the unfolded renal artery adventitia, the auxiliary adjusting module is used for completely unfolding the renal artery adventitia before the position limiting module is fixed, the renal artery adventitia unfolding module comprises a processing piece, a moving block, a limiting protruding block and a positioning probe, and the processing piece is fixed to the top of the fixing bottom plate. According to the invention, the stripped renal adventitia is preliminarily unfolded through the renal adventitia unfolding module, so that the pulling force on connective tissues is prevented from being too large, and the sympathetic nerves on the renal adventitia are also protected.

Description

technical field [0001] The invention relates to the technical field of tissue staining, in particular to a renal tissue fixation dyeing device for renal artery radiofrequency ablation. Background technique [0002] For the treatment of refractory hypertension, percutaneous renal artery sympathetic nerve ablation is a new interventional therapy technology emerging in recent years. It eliminates the sympathetic nerve on the renal artery wall through radiofrequency thermal injury and inhibits its physiological effects, so as to achieve For the purpose of treating refractory hypertension, in order to observe the effect of the operation after surgery, the adventitia of the renal artery undergoing radiofrequency ablation was stripped off, and after staining, it was observed whether the renal sympathetic nerve was successfully blocked. [0003] The conventional fixation method before staining is to use tweezers to adjust the position of the tissue, and then stain. This method is su...

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Problems solved by technology

[0003] The conventional fixation method before staining is to use tweezers to adjust the position of the tissue, and then stain. This method is suitable for observing cells, but for the adventitia of the renal artery using radiofrequency ablation, not only staining is required to observe the condition of the cells, but also staining is required. Sympathetic nerve damage on the adventitia of the renal artery. Since the adventitia of the renal artery is thin and mainly composed of loose connective tissue, it is difficult to control the strength of the tweezers during treatment. Tearing, or external force touching the cover glass after staining will also cause damage to the adventitia of the renal artery, which will affect the judgment of the results of radiofrequency ablation; in addition, in order to ensure that the nerves on the adventitia of the renal artery are completely stained, it is necessary to The adventitia of the renal artery is fully unfolded before the stacking to prevent the incomplete staining of the sympathetic nerve located in the middle of the adventitia due to stacking, which makes it difficult to clearly observe whether the nerve has been radiofrequency ablated. Therefore, we propose a method for radiofrequency ablation of the renal artery. Kidney tissue fixation and staining device

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