Importance

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Abstract

A drill for a medical needle having a fitting end and a tip suitable for intra-osseous use includes a chuck extending outwardly from a hand-held housing, the chuck including means for releasably receiving the needle at it fitting end. Energy storage means disposed within the housing couple rotational energy to the chuck and attached needle upon activation of a housing-supported switch. Energy storage may either be electrical, in which case the housing includes therein a battery and motor mechanically coupled to the chuck, and an electrical switch having operative connections to the motor and battery. The battery is preferably rechargeable and an optional inductive pick-up may be disposed within the housing along with power-conversion circuitry enabling the battery to be inductively charged. In an alternative embodiment the drill includes mechanical energy storage means in the form of a wind-up spring mechanically coupled to the chuck, and wherein the switch allows energy stored in the spring to be released to rotate the chuck and needle attached thereto.

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First Claim