A class of customizable injection devices or delivery instruments whose basic form is a stiff tube with holes of user-selectable size at several user-selectable places is described. The use of this device includes a method of selection and construction of a particular device from such a class of devices...http://www.google.com/patents/US6464662?utm_source=gb-gplus-sharePatent US6464662 - Drug delivery and catheter systems, apparatus and processes
