1. A thoracic stent graft having a tubular bio-compatible graft material body with a lumen therethrough and having a proximal end and a distal end, a sealing stent at the proximal end of the tubular body and an anchoring device affixed to the sealing stent.
2. A thoracic stent graft as in claim 1 wherein the sealing stent is inside the graft material body
3. A thoracic stent graft as in claim 2 wherein the anchoring device extends from the sealing stent and through the graft material body.
4. A thoracic stent graft as in claim 1 wherein the anchoring device extends towards a distal end of the tubular body.
5. A thoracic stent graft as in claim 1 wherein the anchoring device comprises a plurality of barbs extending distally.
6. A thoracic stent graft as in claim 1 further including a distal attachment stent affixed to and extending from the distal end of the graft material body.
7. A thoracic stent graft as in claim 6 wherein the distal attachment stent includes at least one anchoring device affixed thereto and extending proximally.
8. A thoracic stent graft as in claim 7 wherein the at least one anchoring device is a barb.
9. A thoracic stent graft as in claim 1 further including one or more intermediate stents positioned between the proximal sealing stent and the distal end.
10. A thoracic stent graft as in claim 9 wherein at least some of the one or more of the intermediate stents are on the outside surface of the tubular body.
11. A thoracic stent graft as in claim 9 wherein the stents are self-expanding stents.
12. A thoracic stent graft as in claim 9 wherein the stents are zigzag self-expanding stents.
13. A thoracic stent graft as in claim 9 wherein the intermediate stents are spaced apart to allow for bending of the stent graft.
14. A thoracic stent graft as in claim 9 wherein the intermediate stents are spaced apart from five to ten millimetres.
15. A thoracic stent graft as in claim 1 wherein the graft material is selected from at least one of polyester, expanded polytetrafluoroethylene or extra-cellular matrix.
16. Athoracic stent graft as in claim 6 wherein the tubular graft body comprises a first portion and a second portion, the first portion including the sealing stent and the second portion including the distal attachment stent.
17. A thoracic stent graft as in claim 16 wherein the first portion includes at least one internal sealing stent at its distal end.
18. A thoracic stent graft as in claim 16 wherein the second portion includes at least two internal sealing stents at its proximal end.
19. A thoracic stent graft as in claim 16 wherein the first portion and the second portion have respective lengths to provide at least an overlap of two sealing stents.
20. A thoracic stent graft as in claim 1 wherein the tubular body has a length of from 75 to 240 mm and a diameter of from 22 to 42 mm.
21. A thoracic stent graft as in claim 16 wherein the first portion and the second portion when assembled together have a combined length in use of from 150 to 350 mm and a diameter of from 22 to 42 mm.
22. A thoracic stent graft having a tubular bio-compatible graft material body with a lumen therethrough and having a proximal end and a distal end, a sealing stent at the proximal end of the tubular body, a proximal anchoring device affixed to the sealing stent and a distal attachment stent affixed to and extending from the distal end of the graft material.
23. A thoracic stent graft assembly having a proximal first portion and a distal second portion, each of the proximal first portion and distal second portion having a tubular bio-compatible graft material body with a lumen therethrough and having a proximal end and a distal end, a sealing stent at the proximal end of the first proximal portion and a proximal anchoring device affixed to the sealing stent and a distal attachment stent affixed to and extending from the distal end of the distal second portion.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A security arrangement for ensuring access to a unit or information in a unit by authenticating a user, said arrangement comprising:
a lock unit, and
a key unit arranged in communication with said lock unit, said key unit having an input unit, a communication unit and means for authentication of the user in the key unit before the key unit accepts lockingunlocking of said lock unit,
wherein said key unit is arranged to communicate with the lock unit by starting a verification sequence, upon said acceptance of lockingunlocking, by sending a request to said lock unit,
wherein said lock unit is arranged to respond by transmitting a variable, substantially randomly generated message, and
wherein a numerical value is calculated by means of an algorithm using a protected key stored in said lock unit, said numerical value being derived from the transmitted response message,
wherein said key unit is arranged to respond with a numerical value being calculated from the received message using said algorithm and said protected key, and
wherein, if said lock unit receives a message containing a value being identical to the value calculated by the lock unit, the authentication is confirmed.
2. The arrangement as claimed in claim 1, wherein said unit is selected from the grouping consisting of a computer, cash dispenser, door lock, car door, remote control, mobile communication unit, and portable computer.
3. The arrangement as claimed in claim 1, wherein said input unit is selected from the group consisting of a biometric sensor, PIN (Personal Identification Number) code reader, voice detection device, eye detection device, card reader, and mobile telephone.
4. The arrangement as claimed in claim 1, wherein the user identity is stored in the key unit.
5. The arrangement as claimed in claim 1, wherein said numerical value is used unchanged in the response.
6. The arrangement as claimed in claim 1, wherein said numerical value is encrypted so that the lock unit can interpret it.
7. The arrangement according to claim 1, said lock unit further comprising a memory unit in a computer unit, and said key unit further comprising a biometric sensor,
wherein said lock unit prevents access to data and is connected to the computer unit via a controller unit.
8. The arrangement according to claim 7, wherein said controller unit is selected from the group consisting of an ISA card and PCI card.
9. The arrangement according to claim 1, wherein said key unit further comprises a controller unit.
10. The arrangement according to claim 7, wherein said sensor unit is arranged to initiate said computer unit via said controller unit.
11. The arrangement according to claim 7, wherein a locking operation is automatically initiated after a certain time period has lapsed.
12. The arrangement according to claim 7, wherein a locking operation is automatically initiated by the user via the security arrangement.
13. The arrangement according to claim 7, wherein a locking operation is automatically initiated by the user using a security procedure.
14. A mobile communication unit provided with a security arrangement according to claim 1 for ensuring access to a unit or information in a unit,
wherein said security arrangement is an external unit connected to a communication port of said mobile communication unit,
wherein said security arrangement is provided with a biometric sensor connected to said communication unit,
said communication unit comprising either a key unit andor a lock unit, and
wherein identification of a user is executed in the key unit before lockingunlocking is accepted by the lock unit.
15. Method of authentication in a security arrangement for ensuring access to a unit or information in a unit, the arrangement including a key unit and a lock unit, said key unit comprising an input unit and a communication unit arranged in communication with said lock unit, the method comprising the steps of:
initiating an authentication by said key unit upon initiation by a user,
initiating a verification by the key unit, upon authentication by said key unit, by sending a request to the lock unit,
responding by the lock unit with a varying, randomly generated message, calculating a numerical value simultaneously by means of a special algorithm using a protected key stored in said lock unit, and storing it for later use,
responding by the key unit with a numerical value being calculated from the message received, using said special algorithm and key used in the lock unit, and
confirming authentication if the lock unit receives a message containing a numerical value, which is identical to the one confirmed at the transmission during initiation of the verification by said key unit.
16. The method as claimed in claim 15, wherein said value is derived from the response message.