Abstract: Methods and systems are provided for managing access to a file. The methods and systems may include locking access to the file using a password accessible security setting. The methods and systems may include designating a password as an unlock password. The methods and systems may include communicating the password to a first group of users. The methods and systems may include providing a prompt to input the unlock password upon a request to access the file. The methods and systems may include providing access to the file in response to inputting the unlock password. The methods and systems may include authenticating each unauthenticated user that inputs the unlock password. The methods and systems may include deactivating the password as the unlock password. The methods and systems may include removing authentication from a user in response to the user meeting a predetermined condition.

Abstract: A catheter having a distal tip with an inner layer formed of a polymeric material having a coefficient of friction and surface energy which are relatively low, such that the inner layer has a lubricious, non-polar inner surface repulsive to polar liquids. As a result, blood coagulation in the distal tip, and adherence of the distal tip on the guidewire are prevented or minimized.