1. A solid-state imaging unit comprising:
a pixel section including a plurality of pixels each including a photoelectric conversion section, a charge-voltage conversion section, and a transfer transistor transferring charge accumulated in the photoelectric conversion section to the charge-voltage conversion section; and
a storage section storing information about an optimum value of an intermediate voltage to be applied to a gate of the transfer transistor at time of an intermediate transfer operation when a signal charge accumulated in the photoelectric conversion section is divided to be read in a predetermined times of the intermediate transfer operations and a complete transfer operation.
2. The solid-state imaging unit according to claim 1, wherein the optimum value of the intermediate voltage is a maximum value in optimum values of the intermediate voltage in the respective pixels.
3. The solid-state imaging unit according to claim 1, wherein information about an optimum value of the intermediate value of each of the pixels is stored in the storage section.
4. The solid-state imaging unit according to claim 1, wherein the storage section includes an electrically-programmable fuse.
5. The solid-state imaging unit according to claim 1, wherein optimum values of the intermediate voltage of all of the pixels are set to values that satisfy the following relational expression,
Qs\u2212n\xd7Qm=Qc\u2266Qfd,
where Qc is a charge amount transferred from the photoelectric conversion section to the charge-voltage conversion section at time of the complete transfer operation, Qm is a charge amount transferred from the photoelectric conversion section to the charge-voltage conversion section in each of the intermediate transfer operations, Qs is a saturated charge amount of the photoelectric conversion section, Qfd is a maximum charge amount that is allowed to be accumulated in the charge-voltage conversion section, and n is number of times of the intermediate transfer operations.
6. The solid-state imaging unit according to claim 1, wherein a scheme of a signal process performed at a time of reading the signal charge is a dual noise cancelling scheme.
7. An electronic apparatus comprising:
a solid-state imaging unit including
a pixel section including a plurality of pixels each including a photoelectric conversion section, a charge-voltage conversion section, and a transfer transistor transferring charge accumulated in the photoelectric conversion section to the charge-voltage conversion section, and
a storage section storing information about an optimum value of an intermediate voltage to be applied to a gate of the transfer transistor at time of an intermediate transfer operation when a signal charge accumulated in the photoelectric conversion section is divided to be read in a predetermined times of the intermediate transfer operations and a complete transfer operation; and
a signal processing circuit performing a predetermined process on an output signal from the solid-state imaging unit.
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. For a bifurcated vasculature having a vascular trunk, a system comprising:
a trunk member including a loop; and
a tether sized to extend through a catheter past either end of the catheter, the tether including a pinning member and a hooking member, the hooking member having an end with a hook, the hook having an eyelet sized to receive an end of the pinning member, the loop of the trunk member sized to receive the hook of the hooking member, the hook being configured to removably engage with the loop without the pinning member being engaged with the loop and to be fixedly engaged with the loop while the pinning member is engaged with the loop.
2. The system of claim 1 wherein the trunk member and the tether are of a nitinol metal alloy.
3. The system of claim 1 wherein the trunk member and the tether are of a polymeric material.
4. The system of claim 1 where at least one of the trunk member and tether comprises a radiopacifying material.
5. The system of claim 4 where the radiopacifying material is gold, platinum, silver, tantalum, iridium, rhodium, and mixtures and alloys thereof.
6. The system of claim 4 where the radiopacifying material is one component of a mixture containing a polymer.
7. The system of claim 4 where the radiopacifying material is a radiopaque marker band, positioned on the tether wire so that the position of the tether wire tip relative to the hook member can be visualized on an X-ray image.
8. A method comprising:
inserting a trunk member into a catheter;
engaging a tether with the system;
inserting the catheter into a trunk portion of a bifurcated vasculature having the vascular trunk dividing into a first vascular branch and a second vascular branch at a vascular intersection;
moving the trunk member into the bifurcated vasculature with the tether; and
disengaging the trunk member from the tether.
9. The system of claim 8 wherein the trunk member and the tether are of a nitinol metal alloy.
10. The system of claim 8 wherein the trunk member and the tether are of a polymeric material.
11. A method comprising:
engaging a tether with a trunk member by coupling a hook of a second end of a hooking member of the tether to a loop of the trunk member and slipping an a second end of a pinning member of the tether through an eyelet of the hook;
inserting the catheter into a trunk portion of a bifurcated vasculature having the vascular trunk dividing into a first vascular branch and a second vascular branch at a vascular intersection;
moving a first end of the pinning member and a first end of the hooking member to move the trunk member into the bifurcated vasculature from the catheter;
moving the first end of the pinning member to move the second end of the pinning member out of the eyelet of the hook; and
moving the first end of the hooking member to disengage the hook at the second end of the hooking member from the loop of the trunk member.
12. The system of claim 11 wherein the trunk member and the tether are of a nitinol metal alloy.
13. The system of claim 11 wherein the trunk member and the tether are of a polymeric material.