Intravascular sensing device.

(57) with the method and equipment for the medical treatment of the patient heart which shows summary abnormal heart rhythm, First, in order to determine the position of the arrhythmic origin part or the conduction course of generating abnormal heart rhythm, the electric activity in the above-mentioned patient heart is detected, Next, the method and equipment for the medical treatment of the patient heart which shows the abnormal heart rhythm by forming stoppage by carrying a blockade element to the coronary arteries which carry the blood containing oxygen to the above-mentioned domain of the above-mentioned patient heart in the domain in which the above-mentioned arrhythmic origin part or the above-mentioned conduction course of generating the abnormal heart rhythm in the above-mentioned patient heart is located. When the above-mentioned blockade element has been arranged at the coronary-arteries passage, it is in / on the one present condition and / a desirable case of the operation a slack weak coil which forms irregular-shaped debt 合つた塊. The above-mentioned coil forms a thrombus promptly in the above-mentioned coronary arteries, and prevents passage of the blood containing oxygen passing through that. The coil slack account of front can carry at least 遠 extended in the above-mentioned coronary arteries through internal pipe 腔 of the catheter equipped with the part.