Patent ID: 8628879
Filing Date: 2014-01-14
Classification: A61B,H01M

Abstract:
1. Magnetic Resonance (MR) conditional laryngoscope apparatus for use in MR environments, the laryngoscope apparatus comprising a MR conditional handheld battery operated laryngoscope which includes an elongate laryngoscope handle and a laryngoscope blade, said handle having a leading handle end adjacent to said laryngoscope blade when connected on said handle, and a trailing handle end, and a MR conditional carbon zinc cylindrical power pack for operating said laryngoscope, said laryngoscope handle having a cylindrical power pack compartment that has a leading compartment end and a trailing compartment end corresponding with said leading handle end and said trailing handle end, respectively, and a peripheral compartment surface extending between said leading compartment end and said trailing compartment end, and said power pack compartment capable of receiving either said power pack or at least one off-the-shelf standard battery, an off-the-shelf standard battery being defined as including a cup-shaped, cylindrical electrically insulated shell, a peripheral surface, and a battery bottom surface in a standard mechanical and terminal configuration such that the standard battery has a positive terminal at a top end and a negative terminal at the battery bottom surface, said power pack compartment having a first terminal at said leading compartment end and a second terminal along said peripheral compartment surface in a power pack compartment terminal configuration that is different from the standard mechanical and terminal configuration of the standard battery such that said laryngoscope is inoperable on insertion of said at least one off-the-shelf standard battery in said power pack compartment; said cylindrical power pack having non-magnetic properties and including an electrically insulating casing including at least one standard carbon zinc battery which is not rechargeable and each of the at least one standard carbon zinc batteries having a positive terminal, said power pack having a leading power pack end with a central opening therein, a trailing power pack end and a cylindrical peripheral power pack surface, and a single positive power pack terminal which comprises a positive terminal of one of the at least one standard carbon zinc batteries positioned at said power pack central opening, and said power pack further comprising a single negative power pack terminal on said peripheral power pack surface, said positive power pack terminal being in a power pack terminal configuration that electrically corresponds to said power pack compartment terminal configuration thereby rendering said laryngoscope operable on insertion of said carbon zinc power pack in said power pack compartment, and wherein said power pack casing has a longitudinal axis and said power pack negative terminal is comprised of a resilient elongated flexible member inclined with respect to said casing longitudinal axis and having a free end spaced from said cylindrical peripheral power pack surface in a radial direction for urging toward said longitudinal axis on insertion of said carbon zinc power pack in said power pack compartment of said laryngoscope for ensuring electrical contact with said corresponding power pack compartment's terminal.