초록 ▼

A flexible, three-dimensional container is made by a prescribed vacuum-molding and heat sealing process. The container possesses a precise, defined geometry before and during use. The container is formed from first and second walls. The first wall has a planar area and a vacuum-molded cavity area dr

A flexible, three-dimensional container is made by a prescribed vacuum-molding and heat sealing process. The container possesses a precise, defined geometry before and during use. The container is formed from first and second walls. The first wall has a planar area and a vacuum-molded cavity area drawn out of the plane of the planar area into a predefined three-dimensional geometry. A second wall overlies the first wall to close the cavity area and thereby forms an interior compartment. A thermal seal joins the two walls together. The seal is formed by heating the second wall and the first wall in the planar area, while assuring that the cavity area of the first wall is not subject to heating and possible deformation of its precise vacuum-molded geometry.

대표청구항 ▼

[ We claim:] [1.]1. A flexible, three-dimensional blood constituent container comprisinga first wall of flexible sheet material suitable for cryogenic storage of the blood constituent the wall having a planar area extending in a plane and a cavity area drawn out of the plane into a predefined three-

[ We claim:] [1.]1. A flexible, three-dimensional blood constituent container comprisinga first wall of flexible sheet material suitable for cryogenic storage of the blood constituent the wall having a planar area extending in a plane and a cavity area drawn out of the plane into a predefined three-dimensional geometry by vacuum molding,a second wall overlying the first wall to close the cavity area and thereby form an interior compartment,a seal formed by heating the second wall and the first wall in the planar area and not in the cavity area of the first wall and a port extending in the seal and providing fluid flow communicating with the interior compartment.