1. A method of managing a device, said method comprising
setting up a network connection from a management system to a device having a first configuration,
changing the configuration of said device by said management system over said network connection,
applying said changed configuration in said device,
initiating a set up of a new network connection from said management system to said device, and
accepting said changed configuration permanently as a new configuration in said device, if said new network connection is successfully set up, or
returning to use said first configuration in said device, if said new network connection fails.
2. A method according to claim 1, wherein said step of returning comprises
returning to use said first configuration in said device, if said new connection from said management system is not received within a predetermined period of time after said step of applying.
3. A method according to claim 1, comprising
timing a moment at which said device starts to apply the changed configuration.
4. A method according to claim 1, comprising
using said first configuration in said device, if said device is power cycled or reinitialized locally before said step of accepting, and
using said changed configuration in said device, if said device is power cycled or reinitialized after said step of accepting.
5. A method according to claim 1, comprising
informing said management system of using said first configuration in said device, when next network connection is set up to said device.
6. A method according to claim 1, wherein said configuration comprises at least one of 1) software and 2) settings of said device.
7. A method according to claim 1, wherein said device is a firewall.
8. A method of managing a device, said method comprising
setting up a network connection from a management system to a device having a first configuration,
changing the configuration of said device by said management system over said network connection,
applying said changed configuration in said device in a timed manner according to timing parameters defined during said changing step,
said device requests said management system to set up a new network connection when said device starts to apply the changed configuration,
initiating a set up of a new network connection from said management system to said device, and
accepting said changed configuration permanently as a new configuration in said device, if said new network connection is successfully set up, or
returning to use said first configuration in said device, if said new connection from said management system is not received within a predetermined period of time after said step of applying.
9. A network device managed remotely by a management system, said device comprising
a memory for storing a first configuration,
a first mechanism enabling said management system to change said first configuration over a network connection,
a second mechanism accepting said changed configuration for permanent use, if a new network connection is successfully set up from said management system within a predetermined period of time after applying said changed configuration in said network device, and returning said network device to use said first configuration otherwise.
10. A network device according to claim 9, wherein said configuration comprises at least one of 1) software and 2) settings of said network device.
11. A network device according to claim 9, wherein said device is a firewall.
12. A network device according to claim 9, wherein
said network device comprises timing mechanism configured for timing a moment at which said device starts to apply the changed configuration.
13. A network device according to claim 12, wherein
said network device is arranged to request said management system (10) to set up said new network connection when said device starts to apply the changed configuration.
14. A management system for remote management of a network device, said management system comprising
a mechanism setting up a first network connection to said network device for changing a configuration in said network device,
a second mechanism for setting up a new connection to said network device within a predetermined period of time after said first network connection or after a request from said network device, in order to approve said changed configuration for a permanent use.
15. A management system according to claim 14, wherein said configuration comprises at least one of 1) software and 2) settings of said network device.
16. A management system according to claim 14, wherein said management system is intended for managing firewalls.
17. A computer-readable medium, containing a computer software, wherein executing said software in a computer causes the computer to execute the steps of
using a first configuration,
receiving a change of the configuration over a first network connection from a management system,
applying said changed configuration,
accepting said changed configuration permanently as a new configuration, if a new network connection is set up from said management system, and
returning to use said first configuration, if said new network connection fails or is not setup within a predetermined period of time.
18. A computer-readable medium, containing a computer software, wherein executing said software in a computer causes the computer to execute, for remote management of a network device, the steps of
setting up a first network connection to said network device for changing a configuration in said network device,
setting up a new connection to said network device within a predetermined period of time after said first network connection or after a request from said network device, in order to approve said changed configuration for a permanent use.
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 coaxial cable, comprising:
an inner conductor;
an outer conductor surrounding the inner conductor and configured in a generally concentric relationship therewith, the inner and outer conductors adapted to connect to an energy source; and
a thermally responsive material positioned between the outer conductor and the inner conductor,
wherein a thermal change in the thermally responsive material alters the generally concentric relationship between the outer conductor and the inner conductor.
2. The coaxial cable according to claim 1, wherein the thermally responsive material further includes first and second dielectric materials wherein the first dielectric material has a first coefficient of thermal expansion and the second dielectric material has a second coefficient of thermal expansion different from the first coefficient of thermal expansion.
3. The coaxial cable according to claim 2, wherein the thermally responsive material further includes:
a first resistive heating element at least partially disposed in the first dielectric material; and
a second resistive heating element at least partially disposed in the second dielectric material,
wherein the thermal change is defined by the application of heat via one or more of the first and the second resistive heating elements.
4. The coaxial cable according to claim 1, wherein the thermally responsive material further includes:
a first dielectric material that surrounds the inner conductor; and
a plurality of resistive heating elements disposed in the first dielectric material and substantially parallel to the inner conductor along a length of the coaxial cable,
wherein the thermal change is defined by the application of heat to the first dielectric material via the one or more of the plurality of resistive heating elements.
5. The coaxial cable according to claim 1, wherein the coaxial cable includes a sensor that monitors at least one of the inner and outer conductors for determining the position of the inner conductor relative to the outer conductor.
6. The coaxial cable according to claim 1, wherein the thermally responsive material includes a shape memory alloy responsive to changes in temperature and the thermal change in the shape memory alloy alters the generally concentric relationship between the outer conductor and the inner conductor.
7. The coaxial cable according to claim 1, wherein the thermally responsive material further includes a plurality of spacers in a longitudinally spaced apart relationship with respect to each other.
8. The coaxial cable according to claim 7, wherein each of the plurality of spacers has a coefficient of thermal expansion wherein the thermal change alters the generally concentric relationship between the outer conductor and the inner conductor at each of the plurality of spacers.
9. The coaxial cable according to claim 7, wherein the coefficient of thermal expansion of each of the plurality of spacers is not equal.
10. The coaxial cable according to claim 7, wherein the plurality of spacers further includes:
a first spacer including a first dielectric material with a first coefficient of thermal expansion; and
a second spacer including a second dielectric material with a second coefficient of thermal expansion wherein the first dielectric material and the second dielectric material are different materials.
11. The coaxial cable according to claim 1, wherein the thermally responsive material further includes a plurality of spacers in a spaced apart relationship with respect to each other.
12. The coaxial cable according to claim 1, wherein the thermally responsive material is selected from the group consisting of ABS Polymer Extruded, ABS Polymer Nylon Blend, PEKK Polyketone, PEEK Polyketone, Nylon PTFE Filled, Polycarbonate Extruded, LDPE (Polyethylene), Polyimide, PTFE Molded, Silica Aerogel and combinations thereof.
13. A coaxial cable, comprising:
an inner conductor;
an outer conductor surrounding the inner conductor, the outer and inner conductors adapted to connect to an energy source;
a first dielectric material disposed between the inner conductor and the outer conductor having a first fluid conduit defined therein; and
a second dielectric material disposed between the inner conductor and the outer conductor having a second fluid conduit defined therein,
wherein the first dielectric material and the second dielectric materials are configured to position the inner conductor in a generally concentric relationship to the outer conductor, and
wherein the first dielectric material and the second dielectric material are thermally responsive materials and a change in temperature of the first or the second dielectric material alters the generally concentric relationship between the inner conductor and the outer conductor, and
wherein fluid provided to one of the first fluid conduit and the second fluid conduit defines the change in temperature.
14. The coaxial cable according to claim 13, wherein fluid provided to one of the first and the second fluid conduits is selectively controllable to regulate the thermal expansion of the thermally responsive material.
15. A surgical device, comprising:
an inner conductor;
an outer conductor surrounding the inner conductor and configured in a generally concentric relationship therewith, the inner and outer conductors adapted to connect to an energy source;
a thermally responsive material positioned between the outer conductor and the inner conductor wherein a thermal change in the thermally responsive material alters the generally concentric relationship between the outer conductor and the inner conductor; and
an ablative energy delivery device adapted to couple to an ablative energy source through the inner and outer conductors to deliver energy to tissue.
16. The surgical device of claim 15, wherein the thermally responsive material selectively aligns or misaligns the inner conductor relative to the outer conductor for tuning and impedance matching.
17. The surgical device of claim 15, wherein the thermally responsive material positions the inner conductor relative to the outer conductor from the a first position wherein the inner conductor is concentrically aligned with the outer conductor to a second position wherein the inner conductor is not concentrically aligned with the outer conductor.
18. The coaxial cable according to claim 15, wherein the thermally responsive material is selected from the group consisting of ABS Polymer Extruded, ABS Polymer Nylon Blend, PEKK Polyketone, PEEK Polyketone, Nylon PTFE Filled, Polycarbonate Extruded, LDPE (Polyethylene), Polyimide, PTFE Molded, Silica Aerogel and combinations thereof.