1. An endoprosthesis for delivery in a body lumen, the endoprosthesis comprising at least one strut element having a strut width and a strut thickness, the strut thickness being defined by a first side opposite a second side, the strut element having at least one hole extending from the first side to the second side, the at least one hole being positioned so as to inhibit crack propagation across the strut length or strut width.
2. An endoprosthesis as in claim 1, wherein the strut element includes at least two holes across a strut width.
3. An endoprosthesis as in claim 1, wherein the at least one hole across the strut width partition the strut element into at least a first portion and a section portion, the first portion and second portion being connected by at least three connection elements, each of the three connection elements having a sufficient strength so that only two of the connections elements is can provide structural integrity.
4. An endoprosthesis as in claim 1, wherein the at least one hole has a narrowing taper.
5. An endoprosthesis as in claim 1, wherein the at least one hole has a widening taper.
6. An endoprosthesis as in claim 1, wherein the at least one of the hole is shaped as two fluidly coupled parabolic recesses.
7. An endoprosthesis as in claim 1, wherein the at least one hole is filled with a biodegradable polymer.
8. An endoprosthesis as in claim 1, further comprising at least one radiopaque marking element.
9. An endoprosthesis for delivery in a body lumen, the endoprosthesis comprising at least one strut element, that at least one struts element having a first side opposite a second side, the strut element having a plurality of fibers distributed throughout at least a portion of the strut element, the plurality of fibers being positioned so as to inhibit crack propagation across the strut length or strut width.
10. An endoprosthesis as in claim 9, wherein the plurality of fibers are uniformly distributed throughout the at least the portion of the strut element.
11. An endoprosthesis as in claim 9, wherein the plurality of fibers are randomly distributed throughout the at least the portion of the strut element.
12. An endoprosthesis as in claim 9, wherein at least one of the plurality of fibers extends from the first side toward the second side.
13. An endoprosthesis as in claim 9, wherein at least one of the plurality of fibers extends from the first side toward the second side.
14. An endoprosthesis as in claim 9, wherein the at least one strut element further comprises a first material within which is disposed the plurality of fibers.
15. An endoprosthesis as in claim 14, wherein the first material further comprises a plurality of particulates.
16. An endoprosthesis for delivery in a body lumen, the endoprosthesis comprising a plurality of strut element, each strut element of the plurality of strut elements having a first side opposite a second side, each strut element having a plurality of spaced apart holes extending from the first side toward the second side, the plurality of spaced apart holes being positioned so as to inhibit crack propagation across the strut length or strut width.
17. An endoprosthesis as in claim 16, wherein each strut element comprises a first portion and a second portion, the plurality of spaced apart holes being formed in at least one of the first portion and the second portion.
18. An endoprosthesis as in claim 17, wherein the plurality of spaced apart holes are uniformly distributed in that at least one of the first portion and the second portion.
19. An endoprosthesis as in claim 17, wherein at least one of the plurality of holes has either a narrowing taper or a widening taper.
20. An endoprosthesis as in claim 17, wherein at least one of the plurality of holes is filled with a biodegradable polymer.
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 protection cover that covers at least a part of an electronic device having a first housing and a second housing that are supported turnably to each other, comprising:
a main body portion having a size capable of covering the first housing and the second housing;
a fixing member provided in the main body portion and capable of being fixed to the first housing; and
a locking member provided in the main body portion and capable of being locked to the second housing,
wherein the locking member is locked to the second housing such that a relative position between the main body portion and the second housing is changeable.
2. The protection cover according to claim 1, wherein the locking member is locked to the second housing such that the relative position between the main body portion and the second housing is changeable in a plane direction of a main surface of the main body portion.
3. An electronic device that has a first housing and a second housing supported turnably to each other and is capable of holding a protection cover, comprising:
a hole formed in the first housing and capable of accepting a protrusion portion provided in the protection cover,
wherein the hole includes a first hole having a first inner diameter and a second hole having a second inner diameter that is smaller than the first inner diameter,
the first inner diameter is larger than the second inner diameter and an outer diameter of a tip end portion of the protrusion portion, and
the second inner diameter is smaller than an outer diameter of a shaft portion of the protrusion portion that is smaller than the outer diameter of the tip end portion.
4. A cover holding structure that is capable of holding a protection cover to an electronic device having a housing,
wherein the housing includes a hole,
the protection cover includes a protrusion portion capable of being fitted in the hole,
the hole includes a first hole having a first inner diameter and a second hole having a second inner diameter that is smaller than the first inner diameter,
the protrusion portion includes a shaft portion whose one end portion is connected to a main body portion of the protection cover and a tip end portion that is connected to the other end portion of the shaft portion,
an outer diameter of the tip end portion is smaller than the first inner diameter and larger than the second inner diameter, and
an outer diameter of the shaft portion is smaller than the second inner diameter and smaller than the outer diameter of the tip end portion.