| 摘要 |
The present invention is a simple, inexpensive and consequently disposable, self-piercing and locating combination evacuator and ejector tube which can be encased in a sheath, presterilized ready for use, and includes a spearhead-type body with spaced cutting edges diverging from a pointed top rearwardly, and with a shoulder or flange spaced beyond the rear limits of said cutting edges, with a reduced portion therebetween so that when the device is used to pierce a membrance such as an eardrum, skin or other body portion, such skin or membrane will be disposed in such reduced portion with the handle or ejector tube removed, and the device left in the incision until healing has occurred, whereupon it can be readily removed. Thus the evacuator is of a construction to have superior holding qualities, to provide minimum interference with nature's healing, and is of a composition readily recognizable as suitable for implantation in the human body.
|
