Abstract: The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

Abstract: A centrifugal, shaft-driven clutch apparatus includes an engine shaft for providing rotary power, the engine shaft having a free end portion and an open ended bore that communicates with the free end portion. A centrifugal clutch assembly includes a clutch bushing member having a shaft bore for affixing the bushing member to the shaft. The bushing member provides an internal bore and an outer surface. The clutch assembly includes a clutch housing member with an internal bore, and the clutch housing rotates upon the clutch bushing member at the internal bore. A first port extends between the shaft bore and the clutch bushing for transmitting lubricant from the shaft bore to the clutch bushing member. A second port extends through the bushing member bore to the outer surface thereof. A channel forms a communication between the first and second ports for transporting lubricant between the first and second ports. A fitting provides an inlet portion for receiving lubricant, and is attached to the shaft bore.