Abstract: A method for resolving ambiguity in computer data includes processing a record creation request transmitted from a computing device. The record creation request includes entity creation data and a login key. The login key includes a primary identifier and a password. The method also includes executing a matching algorithm with a selectable combination of the entity creation data at an entity database to identify a single entity record matching a selectable combination of the record creation request. The single entity record is linked to multiple different login keys. The method also includes updating one or more attributes of the single entity record with the entity creation data. Further, the method includes storing session data created during a session associated with the login key by using the login key to segregate the session data in the entity database, and linking the session data to the single entity record.

Abstract: A method for resolving ambiguity in computer data includes processing a record creation request transmitted from a computing device. The record creation request includes entity creation data and a login key. The login key includes a primary identifier and a password. The method also includes executing a matching algorithm with a selectable combination of the entity creation data at an entity database to identify a single entity record matching a selectable combination of the record creation request. The single entity record is linked to multiple different login keys. The method also includes updating one or more attributes of the single entity record with the entity creation data. Further, the method includes storing session data created during a session associated with the login key by using the login key to segregate the session data in the entity database, and linking the session data to the single entity record.

Abstract: A physiological fluid sampling device connectable to a hypodermic needle has a sampling chamber of selectably variable volume defined by a sealing member in the form of a piston which is manually movable in a housing member due to its attachment to a plunger extending out of the housing member. The chamber is formed by a closed end of the housing, the housing side wall, and the sealing member, and a bore through the housing end wall permits fluid communication with the needle. The sealing member forms a constant hermetic seal around the housing side wall, but contaminant gases may escape from the chamber through exhaust passageways formed in the sealing member. Each of these passageways contains liquid reactive material so that they automatically seal upon contact with a physiological fluid, such as blood, to prevent re-entry of contaminant gases. Crystalline heparin coats the interior surface of the housing member to stop clotting of arterial blood.

Abstract: A physiological fluid sampling device connectable to a hypodermic needle has a sampling chamber of selectably variable volume defined by a sealing member in the form of a piston which is manually movable in a housing member due to its attachment to a plunger extending out of the housing member. The chamber is formed by a closed end of the housing, the housing side wall, and the sealing member, and a bore through the housing end wall permits fluid communication with the needle. The sealing member forms a constant hermetic seal around the housing side wall, but contaminant gases may escape from the chamber through exhaust passageways formed in the sealing member. Each of these passageways contains liquid reactive material so that they automatically seal upon contact with a physiological fluid, such as blood, to prevent re-entry of contaminant gases. Crystalline heparin coats the interior surface of the housing member to stop clotting of arterial blood.