Abstract:
According to one embodiment, a portable fuel system includes a container that includes a closed end and an open end. The system also includes a fuel element that includes a compressed homogenous mixture of a cellulose-containing material and a hardened wax material. The fuel element is removably positionable within the container. The system also includes a spacer that is positionable within the container between the closed end of the container and the fuel element. The spacer supports the fuel element on the closed end such that air is flowable between the fuel element and the closed end. The system further includes a cooking surface that is couplable to the open end of the container.
Abstract:
A threaded intervertebral implant or cage which includes a cylindrical or tapered body made from a biocompatible metal such as titanium, or a radiolucent plastic material. The cage includes a pair of opposing, threaded arcuate contact portions oriented in the superior/inferior direction for threading, supporting engagement with the endplates of adjacent vertebrae when the cage is implanted. Additionally, the cage includes a threaded lateral side having an arcuate profile, and a medial side having a concave channel extending along the length of the cage. The channel allows two cages to be implanted in a side-by-side manner between adjacent vertebrae with the channel of a first implanted cage receiving the arcuate portions of an adjacent second cage while the second cage is implanted. In this manner, a pair of adjacent cages may be implanted very close to one another. Also, when two cages are implanted in a side-by-side manner, the concave channels of the medial sides of the cages face one another to define a substantially enclosed intercage space between the cages in which bone growth-promoting material may be packed to facilitate fusion between adjacent vertebrae.