目的 :为在二尖瓣成形术中准确迅速判断瓣环和瓣叶病损的部位及程度 ,提高二尖瓣成形术的成功率。方法 :解剖测量 30例国人正常新鲜心脏的二尖瓣 ,术中观察二尖瓣病理变化特点后研制了一种新型二尖瓣成形测瓣器。结果 :用测瓣器行二尖瓣成形术 35例 ,成形手术时间由原来的 (57±11)min减少到 (35±15)min ,手术死亡率由 11%下降到 3 3%。结论 :使用此种测瓣器可使二尖瓣成形术省时、准确 ,成功率明显提高。 Purpose : To accurately and quickly determine the location and extent of the annulus and leaflet lesions in mitral valvuloplasty and improve the success rate of mitral valve angioplasty. METHODS: The mitral valve of 30 patients with normal fresh heart was dissected and measured. The characteristics of mitral valve pathology were observed and a new type of mitral valve measuring instrument was developed. RESULTS: In 35 patients who underwent mitral valvuloplasty with an instrument, the operation time of the forming was reduced from (57±11) minutes to (35±15) minutes, and the operative mortality rate was reduced from 11% to 3 3%. Conclusion: The use of this type of stenosis instrument can make mitral valve angioplasty time-saving, accurate, and significantly improve the success rate.