PROBLEM TO BE SOLVED: To provide an acidic catheter lock solution which achieves both bacteriostatic effects and blood compatibility and is used for the purposes of preventing blood coagulation in a hemodialysis and in the use of an artificial heart-lung or the other extracorporeal circulation apparatus, of preventing blood coagulation in inserting a vascular catheter, of preventing blood coagulation in blood transfusion and a blood test, or the like.SOLUTION: Catheter is used for the purposes of preventing blood coagulation in a hemodialysis and in the use of an artificial heart-lung or the other extracorporeal circulation apparatus, of preventing blood coagulation in inserting a vascular catheter, of preventing blood coagulation in blood transfusion and a blood test, or the like. In the catheter, an acidic catheter lock solution forms a pH gradient.COPYRIGHT: (C)2014,JPO&INPIT【課題】血液透析、人工心肺その他の体外循環装置使用時における血液凝固の防止、血管カテーテル挿入時の血液凝固の防止、輸血および血液検査の際における血液凝固の防止等の用途に用いられる静菌効果と血液適合性を両立させた酸性化カテーテルロック液。【解決手段】血液透析、人工心肺その他の体外循環装置使用時における血液凝固の防止、血管カテーテル挿入時の血液凝固の防止、輸血および血液検査の際における血液凝固の防止等の用途に用いられるカテーテル内の酸性化カテーテルロック液にpH勾配の形成。【選択図】なし
