Large ablation head and ablation device

Abstract

The invention relates to the field of surgical instruments, in particular to a large ablation head and an ablation device. The large ablation head comprises a large ablation head main body, wherein a temperature control wire hole, a stay wire hole and a liquid hole of which the axes are parallel to one another are formed in the large ablation head main body; a plurality of outflow holes are further formed in one end of the large ablation head main body; the liquid hole penetrates through the large ablation head main body; the overflow holes are communicated with the liquid hole; the diameter of the liquid hole is 0.5-0.7mm; the diameter of each overflow hole is 0.55-0.65mm. Through the large ablation head provided by the invention, a contrast medium can be injected into a special heart part of a human body for radiography, and cold brine can be injected into the heart in an ablation process; during a surgery, the large ablation head needs to be put to a designated position through a vascular access, the quantity of the surgical instruments is decreased, the surgical steps are simplified, and the surgical time is shortened.

Description

technical field [0001] The invention relates to the field of surgical instruments, in particular to an ablation bulkhead and an ablation device. Background technique [0002] Cardiac radiofrequency ablation is to send the electrode catheter into the specific part of the heart cavity through the vein or artery, and release the radiofrequency current to cause coagulation necrosis of the local endocardium and subendocardium, so as to block the abnormal conduction bundle and origin point of tachyarrhythmia interventional techniques. The damage range of the radiofrequency current introduced into the heart cavity through the catheter is 1-3mm, which will not cause harm to the body. For example, in the process of cardiac electrophysiological examination and radiofrequency ablation of the human body, some special parts of the heart will be ablated; if premature ventricular contractions originate in the aortic sinus, the aortic sinus needs to be ablated. Tubing carries the lead thr...

AI Technical Summary

Problems solved by technology

This has resulted in a long operation time and high complexity of the operation.

However, in the past, the diameter of the saline side hole in the large head of cold saline perfusion was small. If the contrast agent was injected through the saline perfusion pipeline, the resistance would be very large, and the contrast effect would be very poor.

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