1. A biochip reader comprising:
a plurality of microlenses;
a light source irradiating an excitation light to a plurality of cells of a biochip respectively via said plurality of microlenses; and
a detector reading fluorescence image information from genes attached with fluorescent substances poured into said plurality of cells,
wherein said light source is configured to generate the excitation light composed of a part of strong light intensity and another part of weak light intensity, and
wherein on said biochip, genes of each cell are arranged so that genes are expressed less at the strong light intensity part and are expressed more at the weak light intensity part.
2. A biochip reader in accordance with claim 1, wherein said light source is configured to generate the excitation light that gives a light intensity distribution in which the intensity is strong at its center part and weak at the peripheral part.
3. A biochip reader in accordance with claim 1 or claim 2, further comprising a mask, arranged between said light source and the biochip, that cuts or attenuates part of the excitation light.
4. A biochip reader in accordance with claim 1 or 2, further comprising a zoom mechanism for changing the light intensity distribution of the excitation light corresponding to expression of genes on said biochip.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-62. (canceled)
63. A staple drive assembly comprising:
a cartridge defining retention slots in a plurality of rows for retaining staples and having a proximal end and a distal end;
an actuation sled disposed in the cartridge;
a plurality of first staple pushers each having a first pusher plate in a first row, a second pusher plate in a second row, and a third pusher plate in a third row, the first staple pushers being adapted to eject three staples and being disposed in the cartridge in between the proximal end and the distal end of the cartridge; and
a second staple pusher having less than three pusher plates, the second staple pusher being adapted to eject less than three staple and being disposed at the proximal end of the cartridge.
64. The staple drive assembly according to claim 63, wherein:
the cartridge defines a longitudinal axis; and
the first pusher plate is longitudinally and laterally offset from the second pusher plate and the second pusher plate is longitudinally and laterally offset from the third pusher plate.
65. The staple drive assembly according to claim 64, wherein: each retention slot has a length along the longitudinal axis; and the first pusher plate is longitudinally and laterally offset from the second pusher plate by about two thirds of the retention slot length and the second pusher plate is longitudinally and laterally offset from the third pusher plate about two thirds of the retention slot length.
66. The staple drive assembly according to claim 63, wherein the first staple pushers each have a first cam surface adjacent a distal end of the first staple pusher and a second cam surface adjacent a proximal end of the first staple pusher.
67. The staple drive assembly according to claim 63, wherein the first pusher plate has a different height from at least one of the second pusher plate and the third pusher plate.
68. The staple drive assembly of claim 63, wherein the actuation sled includes spaced apart first and second cam wedges arranged to drive the first cam surface of each first staple pusher and the second cam surface of the first staple pusher.
69. The staple drive assembly of claim 63, wherein the cartridge includes a stepped tissue contacting surface.
70. The staple drive assembly of claim 63, further comprising staples of different heights.
71. A staple pusher for a staple cartridge having a longitudinal axis, comprising:
a first pusher plate, a second pusher plate laterally and longitudinally offset from the first pusher plate, and a third pusher plate laterally and longitudinally offset from the second pusher plate;
a cam surface adjacent a proximal end of the staple pusher; and
a cam surface adjacent a distal end of the staple pusher.
72. The staple pusher according to claim 71, wherein the first pusher plate has a different height from at least one of the second pusher plate and the third pusher plate.
73. The staple pusher according to claim 71, wherein the first pusher plate is longitudinally and laterally offset from the second pusher plate by about two thirds of the retention slot length and the second pusher plate is longitudinally and laterally offset from the third pusher plate about two thirds of the retention slot length.