1. A display device driven with a remaining battery level, for switchingly displaying each page of contents to be displayed on a storage-type display unit; the display device comprising:
a remaining battery level detection section for detecting a remaining battery level and a notification section for notifying a correspondence relation between the detected remaining battery level and the number of displayable pages of the contents.
2. The display device according to claim 1, wherein the notification section notifies a user of the correspondence relation when the user selects contents to be displayed on the storage-type display unit.
3. The display device according to claim 1, wherein the notification section calculates power consumption required for switchingly displaying remaining pages of contents displayed on the storage-type display unit and makes the notification based on the calculation result and the remaining battery level detected by the remaining battery level detection section.
4. The display device according to claim 3, wherein, when a value obtained by subtracting the calculated power consumption from the remaining battery level detected by the remaining battery level detection section is a predetermined threshold or below, the notification section makes a notification to that effect.
5. The display device according to claim 3, comprising a display operation limiting section for enabling switching display from a page displayed on the storage-type display unit only to the next page when the value obtained by subtracting the calculated power consumption from the remaining battery level detected by the remaining battery level detection section is a predetermined threshold or below.
6. The display device according to claim 4, comprising a display operation limiting section for enabling switching display from a page displayed on the storage-type display unit only to the next page when the value obtained by subtracting the calculated power consumption from the remaining battery level detected by the remaining battery level detection section is a predetermined threshold or below.
7. The display device according to claim 1, wherein the notification section calculates the maximum number of pages to be switchedly displayed on the storage-type display unit, based on the remaining battery level detected by the remaining battery level detection section and makes the notification based on the calculated number of pages.
8. The display device according to claim 7, wherein, when the calculated number of pages is a reference number of pages or larger, the notification section makes a notification to that effect.
9. The display device according to claim 8, wherein it is possible to set multiple values of the reference number of pages.
10. The display device according to claim 9, wherein, when the calculated number of pages is smaller than the smallest reference number of pages among the multiple values of the reference number of pages, the notification section immediately notifies the calculated number of pages.
11. The display device according to claim 7, comprising a power consumption calculation section for calculating power consumed by the switching display, based on change in the remaining battery level detected by the remaining battery level detection section, wherein the notification section calculates the number of pages to be switchedly displayed on the storage-type display unit, based on the remaining battery level detected by the remaining battery level by the remaining battery level detection section and the calculated power consumption calculated by the power consumption calculation section.
12. The display device according to claim 8, comprising a power consumption calculation section for calculating power consumed by the switching display, based on change in the remaining battery level detected by the remaining battery level detection section, wherein the notification section calculates the number of pages to be switchedly displayed on the storage-type display unit, based on the remaining battery level detected by the remaining battery level by the remaining battery level detection section and the calculated power consumption calculated by the power consumption calculation section.
13. The display device according to claim 9, comprising a power consumption calculation section for calculating power consumed by the switching display, based on change in the remaining battery level detected by the remaining battery level detection section, wherein the notification section calculates the number of pages to be switchedly displayed on the storage-type display unit, based on the remaining battery level detected by the remaining battery level by the remaining battery level detection section and the calculated power consumption calculated by the power consumption calculation section.
14. The display device according to claim 10, comprising a power consumption calculation section for calculating power consumed by the switching display, based on change in the remaining battery level detected by the remaining battery level detection section, wherein the notification section calculates the number of pages to be switchedly displayed on the storage-type display unit, based on the remaining battery level detected by the remaining battery level by the remaining battery level detection section and the calculated power consumption calculated by the power consumption calculation section.
15. The display device according to claim 7, wherein the notification section calculates the number of pages to be switchedly displayed on the storage-type display unit based on the remaining battery level detected by the remaining battery level detection section and a method of driving the storage-type display unit.
16. The display device according to claim 7, comprising a temperature detection section for detecting temperature of the storage-type display unit, wherein the notification section calculates the number of pages to be switchedly displayed on the storage-type display unit based on the remaining battery level detected by the remaining battery level detection section and the temperature detected by the temperature detection section.
17. The display device according to claim 1, comprising a battery for a particular circuit for supplying power to a particular circuit the power consumption of which changes with operation time and a battery used for the switching display, wherein the remaining battery level detection section detects a remaining level of the battery used for the switching display.
18. The display device according to claim to 1, wherein a non-volatile memory is used as a memory for storage of data generated by a control process of the display device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A catheter, comprising:
a pressure transducer that provides a signal which varies as a function of pressure;
a hollow tube having a distal end, a proximal end, a lumen extending between the proximal end and the distal end;
a gel-like material positioned in the lumen at the distal end;
at least one liquid which fills the lumen and is in communication with the pressure transducer and the gel-like material; and
a ruggedized tip disposed at the distal end of the hollow tube.
2. The catheter according to claim 1, wherein the hollow tube comprises a material selected from the group consisting of polyamide, polyimide, impregnated plastic, polytetra fluorethylene, polyethylene, polyurethane, polyvinyl chloride, and polypropylene.
3. The catheter according to claim 1, wherein the hollow tube comprises a metal selected from the group consisting of 316 stainless steel, Nitinol, titanium, MP35N, and MP52.
4. The catheter according to claim 1, wherein the distal end further comprises a thin-wall portion.
5. The catheter according to claim 1, wherein the at least one liquid is selected from the group consisting of water, saline, fluorinated hydrocarbon, silicone oils, alcohols, and propylene glycol dispersed in water.
6. The catheter according to claim 1, wherein the gel-like material comprises a non-toxic and minimally thrombogenic material.
7. The catheter according to claim 1, wherein the gel-like material further comprises an anti-thrombogenic substance selected from the group consisting of heparin and warfarin.
8. The catheter according to claim 1, wherein at least a portion of the hollow tube is electrically conductive.
9. The catheter according to claim 8, wherein the hollow tube is substantially covered with an insulating material.
10. The catheter according to claim 1, wherein the distal end includes an electrically conductive portion which acts as an electrode for detecting an electric signal.
11. The catheter according to claim 10, and further including a conductor that is coupled to the electrically conductive portion and disposed along the length of the hollow tube.
12. The catheter according to claim 1, wherein the ruggedized tip comprises ribs separating the lumen into a plurality of lumens at the distal end.
13. The catheter according to claim 1, wherein the distal end further comprises a stent inserted into the lumen at the distal end of the hollow tube.
14. The catheter according to claim 13, wherein the stent comprises a braided wire tube.
15. The catheter according to claim 13, wherein the stent comprises an expanded metal mesh tube.
16. The catheter according to claim 1, wherein the distal end further comprises a plurality of semi-circumferential elongated holes.
17. The catheter according to claim 1, wherein the ruggedized tip comprises:
a mesh-like feature formed in the distal end of the hollow tube; and
a compliant membrane disposed over the outer surface of the mesh-like feature.
18. A guidewire catheter, comprising:
a pressure transducer that provides a signal which varies as a function of pressure;
a hollow tube having a distal end, a proximal end, and a lumen extending between the proximal end and the distal end;
a gel-like material positioned in the lumen at the distal end;
at least one liquid which fills the lumen and is in communication with the pressure transducer and the gel-like material; and
a flexible tip disposed at the distal end of the hollow tube.
19. The catheter according to claim 18, wherein the hollow tube comprises a material selected from the group consisting of polyamide, polyimide, impregnated plastic, polytetra fluorethylene, polyethylene, polyurethane, polyvinyl chloride, and polypropylene.
20. The catheter according to claim 18, wherein the hollow tube comprises a metal selected from the group consisting of 316 stainless steel, Nitinol, titanium, MP35N, and MP52.
21. The catheter according to claim 18, wherein the distal end further comprises a thin-wall portion.
22. The catheter according to claim 18, wherein the at least one liquid is selected from the group consisting of water, saline, fluorinated hydrocarbon, silicone oils, alcohols, and propylene glycol dispersed in water.
23. The catheter according to claim 18, wherein the gel-like material comprises a non-toxic and minimally thrombogenic material.
24. The catheter according to claim 18, wherein the gel-like material further comprises an anti-thrombogenic substance selected from the group consisting of heparin and warfarin.
25. The catheter according to claim 18, wherein at least a portion of the hollow tube is electrically conductive.
26. The catheter according to claim 25, wherein the hollow tube is substantially covered with an insulating material.
27. The catheter according to claim 18, wherein the distal end includes an electrically conductive portion which acts as an electrode for detecting an electric signal.
28. The catheter according to claim 27, and further including a conductor that is coupled to the electrically conductive portion and disposed along the length of the hollow tube.
29. The catheter according to claim 18, wherein the distal end further comprises a plurality of semi-circumferential elongated holes.
30. The catheter according to claim 18, wherein the flexible tip comprises:
a coil having a first end and a second end;
a rounded head; and
wherein the rounded head is coupled to the first end of the coil, and the second end of the coil is coupled to the distal end of the hollow tube.
31. The catheter according to claim 18, wherein the flexible tip comprises:
a coil having a first end and a second end;
a rounded head;
a cone-shaped portion having a plurality of holes; and
wherein the rounded head is attached to the first end of the coil, and the second end of the coil is attached to the cone-shaped portion and wherein the cone-shaped portion is inserted into the distal end of the hollow tube.
32. A catheter, comprising:
a pressure transducer that provides a signal which varies as a function of pressure;
a hollow tube having a distal end, a proximal end, and a lumen extending between the proximal end and the distal end;
a gel-like material positioned in the lumen at the distal end;
at least two liquids disposed within the hollow tube to provide a pressure communication link between the gel-like material and the pressure transducer.
33. The catheter according to claim 32, wherein the at least two liquids comprise:
a first liquid in communication with the pressure transducer; and
a second liquid which substantially fills the lumen and is in communication with the gel-like material and the first liquid, and wherein the first liquid and the second liquid are not soluble with each other.
34. The catheter according to claim 32, wherein the hollow tube comprises a material selected from the group consisting of polyamide, polyimide, impregnated plastic, polytetra fluorethylene, polyethylene, polyurethane, polyvinyl chloride, and polypropylene.
35. The catheter according to claim 32, wherein the hollow tube comprises a metal selected from the group consisting of 316 stainless steel, Nitinol, titanium, MP35N, and MP52.
36. The catheter according to claim 32, wherein the distal end further comprises a thin-wall portion.
37. The catheter according to claim 32, wherein the at least two liquids are selected from the group consisting of water, saline, fluorinated hydrocarbon, silicone oils, alcohols, and propylene glycol dispersed in water.
38. The catheter according to claim 32, wherein the gel-like material comprises a non-toxic and minimally thrombogenic material.
39. The catheter according to claim 32, wherein the gel-like material further comprises an anti-thrombogenic substance selected from the group consisting of heparin and warfarin.
40. The catheter according to claim 32, wherein at least a portion of the hollow tube is electrically conductive.
41. The catheter according to claim 40, wherein the hollow tube is substantially covered with an insulating material.
42. The catheter according to claim 32, wherein the distal end includes an electrically conductive portion which acts as an electrode for detecting an electric signal.
43. The catheter according to claim 42, and further including a conductor that is coupled to the electrically conductive portion and disposed along the length of the hollow tube.
44. The catheter according to claim 32, and further including a ruggedized tip including ribs separating the lumen into a plurality of lumens at the distal end.
45. The catheter according to claim 32, wherein the distal end further comprises a stent inserted into the lumen of the distal end of the hollow tube.
46. The catheter according to claim 45, wherein the stent comprises a braided wire tube.
47. The catheter according to claim 45, wherein the stent comprises an expanded metal mesh tube.
48. The catheter according to claim 32, wherein the distal end further comprises a plurality of semi-circumferential elongated holes.
49. The catheter according to claim 32, and further comprising a flexible tip comprising:
a coil having a first end and a second end;
a rounded head; and
wherein the rounded head is coupled to the first end of the coil, and the second end of the coil is coupled to the distal end of the hollow tube.
50. The catheter according to claim 32, and further comprising a flexible tip comprising:
a coil having a first end and a second end;
a rounded head;
a cone-shaped portion having a plurality of holes; and
wherein the rounded head is attached to the first end of the coil, and the second end of the coil is attached to the cone-shaped portion and wherein the cone-shaped portion is inserted into the distal end of the hollow tube.
51. A catheter, comprising:
a pressure transducer that provides a signal which varies as a function of pressure;
a hollow, metal tube having a distal end, a proximal end, and a lumen extending between the proximal end and the distal end;
a gel-like material positioned in the lumen at the distal end; and
at least one liquid which fills the lumen and is in communication with the pressure transducer and the gel-like material.
52. The catheter of claim 51, wherein the at least one liquid comprises:
a first liquid in communication with the pressure transducer; and
a second liquid which substantially fills the lumen and is in communication with the gel-like material and the first liquid, and wherein the first liquid and the second liquid are not soluble with each other.
53. The catheter according to claim 51, wherein the hollow, metal tube comprises a metal selected from the group consisting of 316 stainless steel, Nitinol, titanium, MP35N, and MP52.
54. The catheter according to claim 51, wherein the distal end further comprises a thin-wall portion.
55. The catheter according to claim 51, wherein the at least one liquid is selected from the group consisting of water, saline, fluorinated hydrocarbon, silicone oils, alcohols, and propylene glycol dispersed in water.
56. The catheter according to claim 51, wherein the gel-like material comprises a non-toxic and minimally thrombogenic material.
57. The catheter according to claim 51, wherein the gel-like material further comprises an anti-thrombogenic substance selected from the group consisting of heparin and warfarin.
58. The catheter according to claim 51, wherein the hollow tube is substantially covered with an insulating material.
59. The catheter according to claim 51, and further including a ruggedized tip comprising ribs separating the lumen into a plurality of lumens at the distal end.
60. The catheter according to claim 51, wherein the distal end further comprises a stent inserted into the lumen of the distal end of the hollow tube.
61. The catheter according to claim 60, wherein the stent comprises a braided wire tube.
62. The catheter according to claim 60, wherein the stent comprises an expanded metal mesh tube.
63. The catheter according to claim 60, wherein the distal end further comprises a plurality of semi-circumferential elongated holes.
64. The catheter according to claim 51, and further comprising a flexible tip comprising:
a coil having a first end and a second end;
a rounded head; and
wherein the rounded head is coupled to the coil first end of the coil, and the second end of the coil is coupled to the distal end of the hollow tube.
65. The catheter according to claim 51, and further comprising a flexible tip comprising:
a coil having a first end and a second end;
a rounded head;
a cone-shaped portion having a plurality of holes; and
wherein the rounded head is attached to the first end of the coil, and the second end of the coil is attached to the cone-shaped portion and wherein the cone-shaped portion is inserted into the distal end of the hollow tube.
66. A system, comprising:
a sensing catheter that includes a sensor for sensing a physiological parameter;
the sensing catheter including an electrical output signal related to the sensed physiological parameter;
a control system coupled to the electrical output signal of the sensing catheter;
a therapeutic catheter including at least one input that receives an input from the control system based on the output signal of the sensing catheter; and
wherein the therapeutic catheter includes a hollow tube having a lumen for receiving the sensing catheter and placing the sensor of the sensing catheter in a position to sense the physiological parameter.
67. The system of claim 66, wherein the therapeutic catheter comprises an intra-aortic balloon catheter having a balloon and wherein the control system provides a feed-back control loop that controls the inflationdeflation of the balloon based on signals from the sensing catheter.
68. The system of claim 67, wherein the signals from the sensing catheter include a pressure signal.
69. The system of claim 67, wherein the signals from the sensing catheter include an electrocardiogram (ECG) signal.
70. The system of claim 66, wherein the sensing catheter includes:
a pressure transducer that provides a signal which varies as a function of pressure;
a hollow tube having a distal end, a proximal end, and a lumen extending between the proximal end and the distal end, the proximal end in communication with the pressure transducer;
a gel-like material positioned in the lumen at the distal end; and
at least one liquid which fills the lumen and is in communication with the pressure transducer and the gel-like material.
71. The system of claim 66, wherein the therapeutic catheter further includes a reference electrode coupled to an exterior of the hollow tube of the therapeutic catheter.