| 摘要 |
<p>A spinal aspiration apparatus 10 is described that includes a needle 1 1 that has a shape suitable for the location of and penetration through a pedicle pathway of a vertebra 1. The distal end portion of the spinal aspiration apparatus 10 includes a plurality of apertures that are in fluid communication with a lumen 24 of needle 1 1. The size and angular orientation of the apertures are constructed using the principles of fluid mechanics to create separate and distinct harvest volumes of bone marrow 4 within a body 2 of vertebra 1. A proximal end portion 14 of needle 1 1 includes an external interface 17 that is adapted to provide a fluid tight coupling with an external source of reduced pressure. A handle 16 is connected to proximal end portion 14 that aids in the manipulation of needle 1 1.</p> |
