Patent ID: 7655351
Filing Date: 2010-02-02
Classification: A61M,H01M,Y02E

Abstract:
1. An administering device for infusing or injecting a product, comprising a housing with a receiver for the product; a compartment for a power source in order to supply a conveying mechanism with electrical energy; a first contact spring which is disposed in the compartment and establishes an electrically conductive contact for a first terminal of the power source via a spring force when the power source is disposed in the compartment; and a second contact spring for establishing an electrically conducting contact for a second-terminal of the power source via a spring force; wherein either the first contact spring or the second contact spring comprises a structure which prevents current from flowing if the power source is inserted in the compartment incorrectly, wherein the structure comprises a non-conducting material in the form of a ring having a thickness which is shorter than the length of a protrusion extending from one of the terminals of the power source.