A contact assembly for a connector assembly of a medical device, the contact assembly comprising: a mounting member including a sidewall, the sidewall including an outer surface, an inner surface and a plurality of channels that are formed within the sidewall, between the inner and outer surfaces, the inner surface defining a connector bore that extends along a longitudinal axis of the mounting member, and each channel of the plurality of channels including an entryway, a terminal surface and an opening, the entryway being located at the outer surface of the sidewall, and the opening being located between the entryway and the terminal surface, at the inner surface of the sidewall; a plurality of resilient contact members, each of the plurality of contact members extending from a first terminal end to a second terminal end and including a contact surface, the contact surface of each contact member being located between the first and second terminal ends thereof, and each contact member being mounted in a corresponding channel of the plurality of channels of the mounting member, such that the first terminal end of each contact member abuts the terminal surface of the corresponding channel, the second terminal end of each contact member is located within the corresponding channel, adjacent to the entryway thereof, and the contact surface of each contact member is exposed, through the opening of the corresponding channel, within the connector bore, for electrical coupling with a conductive surface of an elongate medical electrical lead connector that is inserted into the connector bore, along the longitudinal axis thereof, wherein each contact member of the plurality of resilient contact members comprises a coiled wire; and a plurality of plug members, each plug of the plurality of plug members being fixed within the entryway of a corresponding channel, of the plurality of channels of the mounting member, and being electrically coupled to the sidewall of the mounting member and to the second terminal end of a corresponding contact member of the plurality of resilient contact members. a mounting member including a sidewall, the sidewall including an outer surface, an inner surface and a plurality of channels that are formed within the sidewall, between the inner and outer surfaces, the inner surface defining a connector bore that extends along a longitudinal axis of the mounting member, and each channel of the plurality of channels including an entryway, a terminal surface and an opening, the entryway being located at the outer surface of the sidewall, and the opening being located between the entryway and the terminal surface, at the inner surface of the sidewall; a plurality of resilient contact members, each of the plurality of contact members extending from a first terminal end to a second terminal end and including a contact surface, the contact surface of each contact member being located between the first and second terminal ends thereof, and each contact member being mounted in a corresponding channel of the plurality of channels of the mounting member, such that the first terminal end of each contact member abuts the terminal surface of the corresponding channel, the second terminal end of each contact member is located within the corresponding channel, adjacent to the entryway thereof, and the contact surface of each contact member is exposed, through the opening of the corresponding channel, within the connector bore, for electrical coupling with a conductive surface of an elongate medical electrical lead connector that is inserted into the connector bore, along the longitudinal axis thereof, wherein each contact member of the plurality of resilient contact members comprises a coiled wire; and a plurality of plug members, each plug of the plurality of plug members being fixed within the entryway of a corresponding channel, of the plurality of channels of the mounting member, and being electrically coupled to the sidewall of the mounting member and to the second terminal end of a corresponding contact member of the plurality of resilient contact members.