What is claimed is:
1. A control device for deploying a self-expanding medical device within a body vessel, the control device comprising:
a restraining sheath having a proximal end and a distal end, the restraining sheath being adapted to extend over the self-expanding medical device to maintain the medical device in a collapsed position and to be retractable to expose the collapsed medical device for deployment; and
a control mechanism coupled to the proximal end of the restraining sheath for retracting the restraining sheath in a line of motion, the retraction of the restraining sheath being actuated by an actuating force applied to the control mechanism at an angle to the line of motion of the restraining sheath.
2. The control device of claim 1, wherein:
the angle at which the actuating force is to be applied to the control mechanism is between 30 and 90 with the line of motion of the restraining sheath.
3. The control device of claim 1, wherein:
the angle at which the actuating force is to be applied to the control mechanism is substantially perpendicular to the line of motion of the restraining sheath.
4. The control device of claim 1, wherein:
the actuating force is placed on a movable component of the control mechanism which causes translation of the movable component, the control mechanism causing the length of retraction of the restraining sheath to be larger than the length of translation of the movable component.
5. The control device of claim 4, wherein:
the control mechanism includes means for varying the length of retraction of the restraining sheath in response to the length of translation of the movable component.
6. The control device of claim 4, wherein:
the control mechanism includes means for reducing the amount of actuating force needed to translate the movable component to fully retract the restraining sheath from the medical device.
7. The control device of claim 6, wherein:
the means for reducing the amount of actuating force needed to translate the movable component are biasing means coupled to the movable component which places a force on the movable component in the direction of translation of the movable component.
8. The control device of claim 1, further including:
an elongate inner member upon which the restraining sheath is coaxially disposed, the inner member having a proximal end coupled with the control mechanism and a distal end having a mounting portion for mounting the self-expanding medical device.
9. The control device of claim 8, further including:
a housing for the control mechanism, the proximal end of the restraining sheath being movable in the housing in a line of motion with the proximal end of the inner member being affixed within the housing to maintain the inner member stationary as the restraining sheath is being retracted.
10. The control device of claim 9, wherein:
the control mechanism includes a movable rack and pinion assembly mounted within the housing, the movable rack being adapted to receive the actuating force for retracting the retraining sheath, the pinion being coupled with a slider assembly attached to the proximal end of the retraining sheath and movable within the housing.
11. The control device of claim 10, further including:
a gear connected to the pinion and means connecting the slider assembly to the rear for translating the slider assembly when the gear is rotated by the rotation of the pinion.
12. A control device for deploying a self-expanding medical device within a body vessel, the control device comprising:
a housing;
a catheter system coupled with the housing, the catheter system including a restraining sheath having a proximal end and a distal end and an inner member having a proximal end mounted within the housing and a distal end having a mounting portion for mounting the self-expanding medical device, the restraining sheath being coaxially disposed over the inner member with the distal end of the restraining sheath being extendable over the self-expanding medical device to maintain the medical device in a collapsed position, the restraining sheath being retractable to expose the collapsed medical device for deployment; and
a control mechanism mounted within the housing and coupled to the proximal end of the restraining sheath for retracting the restraining sheath in a line of motion, the retraction of the restraining sheath being actuated by an actuating force applied to the control mechanism at an angle to the line of motion of the restraining sheath.
13. The control device of claim 12, wherein:
the proximal end of the restraining sheath is movable within the housing in a line of motion with the proximal end of the inner member being affixed within the housing to maintain the inner member stationary as the restraining sheath is being retracted.
14. The control device of claim 13, wherein:
the control mechanism includes a movable rack and pinion assembly mounted within the housing, the movable rack being adapted to receive the actuating force for retracting the retraining sheath, the pinion being coupled with a slider assembly attached to the proximal end of the retraining sheath and movable within the housing.
15. The control device of claim 14, wherein:
the control mechanism includes a gear connected to the pinion and means connecting the slider assembly to the rear for translating the slider assembly when the gear is rotated by the rotation of the pinion.
16. The control device of claim 15, wherein:
the gear has a larger diameter than the pinion to cause the length of retraction of the restraining sheath to be larger than the length of translation of the movable rack.
17. The control device of claim 14, wherein:
the movable rack is coupled to biasing element which places a force on the movable rack which reduces the actuating force needed to translate the movable rack in order to retract the restraining sheath.
18. The control device of claim 12, wherein:
the angle at which the actuating force is to be applied to the control mechanism is between 30 and 90 with the line of motion of the restraining sheath.
19. The control device of claim 12, wherein:
the angle at which the actuating force is to be applied to the control mechanism is substantially perpendicular to the line of motion of the restraining sheath.
20. The control device of claim 12, wherein:
the actuating force is placed on a movable component of the control mechanism which causes translation of the movable component, the control mechanism causing the length of retraction of the restraining sheath to be larger than the length of translation of the movable component.
21. The control device of claim 20, wherein:
the control mechanism includes means for varying the length of retraction of the restraining sheath in response to the length of translation of the movable component.
22. The control device of claim 21, wherein:
the control mechanism includes means for reducing the amount of actuating force needed to translate the movable component to fully retract the restraining sheath from the medical device.
23. The control device of claim 22, wherein:
the means for reducing the amount of actuating force needed to translate the movable component are biasing means coupled to the movable component which places a force on the movable component in the direction of translation of the movable component.
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 base station apparatus comprising:
a detection unit which detects a terminal device existing in a moving object; and
an allocation unit which, if the detection unit detects a plurality of terminal devices in the moving object, allocates a sub-channel being frequency-multiplexed in a certain time slot, to the plurality of the terminal devices.
2. The base station apparatus according to claim 1,
wherein the allocation unit specifies a time slot for each of a plurality of moving objects, and allocates, to a plurality of terminal devices existing in a same moving object, sub-channels included in the time slot specified for the moving object.
3. The base station apparatus according to claim 1, further comprising:
a search unit which searches a use status of time slots in another base station apparatus; and
a performing unit which performs a handover process with a plurality of terminal devices existing in a same moving object,
where when allocating sub-channels to the plurality of terminal devices in the handover process, the performing unit controls the allocation unit to specify a time slot, which is less used in a handover originating base station apparatus, for the plurality of terminal devices, based on the use status searched by the search unit.
4. The base station apparatus according to claim 1,
wherein in order to detect a terminal device existing in a moving object, the detection unit uses a relative distance to the terminal device, a movement speed of the terminal device, and a movement direction of the terminal device, as determination factors.
5. The base station apparatus according to claim 4,
wherein the detection unit sets a priority to the relative distance to the terminal device, the movement speed of the terminal device, and the movement direction of the terminal device, in this order, and detects the terminal device with reference to the determination factors based on the priority.
6. The base station apparatus according to claim 1,
wherein if the movement speed of the terminal device is smaller than a predetermined threshold value, the detection unit does not perform the detection.
7. The base station apparatus according to claim 1,
wherein in order to detect a terminal device existing in a moving object, the detection unit uses a location of the terminal device as a determination factor.
8. A base station apparatus comprising:
an acquisition unit which acquires information, the information being based on locations of a plurality of terminal devices;
a group forming unit which forms a moving object group including a plurality of terminal devices based on the acquired information; and
an allocation unit which allocates a plurality of sub-channel being frequency multiplexed in a certain time slot to the plurality of terminal devices belonging to the moving object group.
9. The base station apparatus according to claim 8, further comprising:
a storing unit which stores a table for associating a moving object group formed in the group forming unit and a time slot,
wherein the allocation unit allocates a plurality of sub-channels in the time slot associated with the moving object group in the table.
10. The base station apparatus according to claim 9,
wherein the group forming unit forms a plurality of moving object groups, and
wherein the table associates different time slots to the plurality of moving object groups, respectively.
11. The base station apparatus according to claim 8,
wherein the moving object group is associated with a property value related to a terminal device belonging to the moving object group, and
wherein if the acquisition unit acquires information based on a location of a terminal device, the group forming unit compares the acquired information with the property value to determine whether the corresponding terminal device is to belong to the moving object group.
12. The base station apparatus according to claim 11,
wherein the property value is obtained based on the information acquired by the acquisition unit, the information being based on locations of the plurality of terminal devices belonging to the moving object group.
13. The base station apparatus according to claim 8,
wherein the information based on the locations includes a relative distance of the terminal device to the base station apparatus, a movement speed of the terminal device, and a movement direction of the terminal device.