The invention relates to an improved reperfusion mode for
myocardial infarction of a rabbit and a preparation method, which is characterized in that, putting a silk thread with a
diameter not less than the left anterior descending coronary
artery (LAD) on the advancing edge of LAD parallelly, ligating the silk thread and LAD together, the
ligature divides the silk thread into a long piece and a short piece, the short piece is about 5mm, the long piece is about 160mm in the direction of
cardiac apex, checking the silk thread to be not loose, to prepare the mode for
myocardial infarction to success; layer-by-layer suture, making the long piece of the silk thread pass through
pericardium, sternum and
muscle, buried subcutaneously, or putting the outer end of the silk thread on the outside of the
skin wound; in the time of reperfusion, opening the
skin incision, finding and pulling out the outer end of the silk thread, or directly pulling out the silk thread, to prepare the reperfusion mode for
myocardial infarction. The invention can replace the preparation process of the reperfusion mode for myocardial
infarction which is completed by two complex operations; the operation is easier, a complex operation combined with a silk thread extraction can complete the preparation of the reperfusion mode for myocardial
infarction; the invention decreases the damage of animals, and reduces the cost of the mode preparation.