申请人:PIONEER HI-BRED INTERNATIONAL, INC.
公开号:EP0397413A1
公开(公告)日:1990-11-14
A particle gun, suitable for transferring biological materials into the cytoplasm of living cells without significant debris being transferred into the cells, comprising means for holding living cells;
a cartridge chamber (16) at one end for receipt of a macroprojectile carrying biological material and a firing cartridge (24) containing a charge sufficient, when the cartridge is fired, to propel the biological material into the interior of the living cells,
a rifled bore (26), and
a muzzle (14) at the other end of the barrel (12); firing pin means (22) associated with the cartridge chamber (16); a stopping plate (46) positioned between the barrel (12) and the cell holding means for stopping the macroprojectile, the stopping late having an orifice which allows the biological material carried on the macroprojectile to pass therethrough; and
a vacuum chamber surrounding the muzzle end of the barrel, the stopping plate (46), and the cell holding means.
一种粒子枪,适用于将生物材料转移到活细胞的细胞质中,而不会将大量碎片转移到细胞中,包括用于容纳活细胞的装置;
一端的弹壳室(16),用于接收携带生物材料的大弹丸和发射筒(24),发射筒内装有炸药,发射时足以将生物材料推进活细胞内部、
膛线孔 (26),以及
枪管 (12) 另一端的枪口 (14); 与弹膛 (16) 相关联的撞针装置 (22); 位于枪管 (12) 和细胞容纳装置之间的挡板 (46),用于挡住大弹丸,挡板上有一个孔,允许大弹丸上携带的生物材料穿过;以及
围绕枪管枪口端、止动板 (46) 和细胞容纳装置的真空室。