Antiadhesive Material

Abstract

An antiadhesive material is provided and contains a poly-γ-glutamic acid having a weight-average molecular weight of 600,000 to 13,000,000, or a kinematic viscosity at 37° C. of 2 cSt to 15 cSt when dissolved in distilled water at a concentration of 0.05% by mass and/or a salt thereof, as an effective ingredient. The antiadhesive material may have any form such as powder or gel form, and therefore, for example, is easy to handle even in relatively localized surgery such as endoscopic surgery and can more reliably prevent adhesion.

1 . An antiadhesive material comprising a poly-γ-glutamic acid having a weight-average molecular weight of 600,000 to 13,000,000 and/or a salt thereof as an effective ingredient. 
     
     
         2 . The antiadhesive material of  claim 1 , wherein the poly-γ-glutamic acid and/or a salt thereof has a kinematic viscosity at 37° C. of 2 cSt to 15 cSt when dissolved in distilled water at a concentration of 0.05% by mass. 
     
     
         3 . The antiadhesive material of  claim 1 , wherein the antiadhesive material is processed into one of powder or gel form. 
     
     
         4 . The antiadhesive material of  claim 1 , wherein the antiadhesive material is used to prevent postoperative adhesion of an organ in a wound site. 
     
     
         5 . The antiadhesive material of  claim 2 , wherein the antiadhesive material is processed into one of powder or gel form. 
     
     
         6 . The antiadhesive material of  claim 2 , wherein the antiadhesive material is used to prevent postoperative adhesion of an organ in a wound site. 
     
     
         7 . The antiadhesive material of  claim 3 , wherein the antiadhesive material is used to prevent postoperative adhesion of an organ in a wound site.