| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus and method for penetrating bone marrow. <P>SOLUTION: This apparatus includes: a housing such as a handheld body; a penetrator assembly 55; a connector 62 that releasably attaches the penetrator assembly 55 to a drill shaft; a gear mechanism; a motor; and a power supply and associated circuitry operable to power the motor. The penetrator assembly may include a removable inner trocar and an outer penetrator 52 or needle. It may also include a grooved trocar that allows bone chips to be expelled as the apparatus is inserted into bone marrow. Various connectors 62 are provided to attach the penetrator assembly 55 to the drill shaft. <P>COPYRIGHT: (C)2010,JPO&INPIT |
