Safety closing device for biological liquid containers
AssigneeHeisenberg Finance S.A.
InventorsFrancesco Leopardi, Sergio Paoletti, Daniele P. Salome
Life of this patent
Estimating the term…
Abstract
A safety closing device for containers of biological liquids and, particularly, for test tubes used for the drawing, transport and/or analysis of blood. The safety closing device includes an undercap and a cap, both with central portions made of a perforable material. The central portion of the undercap is sealingly locked on the edge of the test tube and the central portion of the cap is sealingly locked on the side facing the undercap. A locking mechanism, that can only be intentionally disengaged, mechanically couples the cap to the undercap, and secures the cap/undercap assembly onto the prearranged open end of the test tube.
Claims44
A safety closing device for containers of biological liquids, particularly test tubes holding blood introduced therein, comprising:
- an undercap removably locked on an open end of a container, the undercap including at least a central portion of elastic pierceable material, with a facing surface the central portion including central openable means for allowing the insertion into the container of means for introducing and drawing biological liquid to and from the container, the central portion being sealingly engaged with an edge of the open end of the container for guaranteeing a pneumatic and liquid seal along the edge;
- a cap rotationally, removably locked on the undercap, the cap including at least a central portion of elastic pierceable material to allow insertion of the introducing and drawing means having a facing surface, a peripheral surface of the central portion of the cap being sealingly engaged with a corresponding facing peripheral surface of the central portion of the undercap to guarantee a pneumatic and liquid sealing of the container, the facing surfaces of the central portions of the undercap and cap being closely engaged with one another to eliminate any free space therebetween, wherein the insertion of the introducing and drawing means through the central openable means of the undercap occurs after the removal of the cap from the undercap;
- and
- locking means disposed on at least one of the cap and undercap for mechanically and axially coupling the cap and undercap on the open end of the container, wherein said locking means is removable only by intentional disengagement.
A safety closing device for containers of biological liquids, comprising:
- an undercap removably locked on an open end of a container;
- means located in the undercap for allowing insertion of means for filling and drawing biological liquid to and from the container, the means for allowing insertion comprising a central portion of perforable material, the central portion being sealingly engaged with an edge of the open end of the container and having a facing surface;
- a cap rotationally, removably locked on the undercap for sealing the undercap, the cap including at least a central portion of perforable material sealingly engaged with the central portion of the undercap having a facing surface, the facing surfaces of the central portions of the undercap and cap being closely engaged with one another to eliminate any free space therebetween;
- and
- locking means disposed on at least one of the cap and undercap for mechanically and axially coupling the cap and undercap on the open end of the container, wherein said locking means is removable only by intentional disengagement.
A safety closing device for containers of biological liquids, comprising:
- an undercap removably locked on an open end of a container, the undercap including at least a central portion of elastic perforable material for allowing insertion of means for filling and drawing biological liquid to and from the container, the central portion including an incision having flexible edges normally closed to form a liquid seal which allows the insertion of the introducing and drawing means, the central portion being sealingly engaged with an edge of the open end of the container;
- a cap rotationally, removably locked on the undercap for sealing the undercap, the cap including at least a central portion of elastic perforable material which allows insertion of the introducing and drawing means, the central portion of the cap having an annular surface sealingly engaged with a corresponding annular surface of the central portion of the undercap by an axial pressure, wherein the elastic central portions of the cap and undercap assure a liquid and pneumatic seal between the cap and undercap, and the undercap and the edge of the container, respectively;
- and
- locking means disposed on at least one of the cap and undercap for mechanically and axially coupling the cap and undercap on the open end of the container and for providing the axial pressure for sealing the central portions of the cap and undercap, wherein said locking means is removable only by intentional disengagement.
Dependencies are inferred from the claim text.