Provided is a method for producing a porous copper foil. The method includes forming a release layer on a metal carrier, growing copper islands on the metal carrier formed with the release layer by electroless copper plating, forming a porous copper thin layer by copper electroplating, and peeling off the porous copper thin layer from the release layer.

Provided is a method for producing a porous copper foil. The method includes forming a release layer on a metal carrier, growing copper islands on the metal carrier formed with the release layer by electroless copper plating, forming a porous copper thin layer by copper electroplating, and peeling off the porous copper thin layer from the release layer.

Methods for forming an electrode structure, which can be used as a biosensor, are provided in which the electrode structure has non-random topography located on one surface of an electrode base. In some embodiments, an electrode structure is obtained that contains no interface between the non-random topography of the electrode structure and the electrode base of the electrode structure. In other embodiments, electrode structures are obtained that have an interface between the non-random topography of the electrode structure and the electrode base of the electrode structure.

Methods for forming an electrode structure, which can be used as a biosensor, are provided in which the electrode structure has non-random topography located on one surface of an electrode base. In some embodiments, an electrode structure is obtained that contains no interface between the non-random topography of the electrode structure and the electrode base of the electrode structure. In other embodiments, electrode structures are obtained that have an interface between the non-random topography of the electrode structure and the electrode base of the electrode structure.

An apparatus for manufacturing a copper foil is provided including a winding unit configured to wind copper foil from an electrodeposition unit including a negative electrode drum on which copper foil is electrodeposited and a positive electrode electrically connected thereto via an electrolyte, the positive electrode includes an electrode body spaced apart from the negative electrode drum, a plurality of electrode plates disposed on a surface thereof, and a plurality of fastening units fastening each electrode plate thereto, the electrode plates including a base plate coupled to the positive electrode body between left and right ends thereof, first and second electrode plates coupled to opposing sides of the base plate and spaced apart from each other, the base plate coupled to the electrode body via a base fastening member, the first and second electrode plates partially overlapping the base plate to cover the base fastening member.

An apparatus for manufacturing a copper foil is provided including a winding unit configured to wind copper foil from an electrodeposition unit including a negative electrode drum on which copper foil is electrodeposited and a positive electrode electrically connected thereto via an electrolyte, the positive electrode includes an electrode body spaced apart from the negative electrode drum, a plurality of electrode plates disposed on a surface thereof, and a plurality of fastening units fastening each electrode plate thereto, the electrode plates including a base plate coupled to the positive electrode body between left and right ends thereof, first and second electrode plates coupled to opposing sides of the base plate and spaced apart from each other, the base plate coupled to the electrode body via a base fastening member, the first and second electrode plates partially overlapping the base plate to cover the base fastening member.

An apparatus for manufacturing copper foil is provided, including: a negative electrode drum on which a copper foil is electrodeposited, a positive electrode plate electrically connected with the negative electrode drum through an electrolyte, a positive electrode body configured to support the positive electrode plate, and a winding unit configured to wind the copper foil supplied from the negative electrode drum, wherein the positive electrode plate includes a base unit coupled to the positive electrode body, a connecting unit coupled to the positive electrode body to overlap a portion of the base unit, and a base fastening unit coupling the base unit to the positive electrode body, the connecting unit includes a covering member disposed to overlap the base unit and an inclined member inclined with respect to the covering member, and the covering member covers the base fastening unit between the base fastening unit and the negative electrode drum.

An apparatus for manufacturing copper foil is provided, including: a negative electrode drum on which a copper foil is electrodeposited, a positive electrode plate electrically connected with the negative electrode drum through an electrolyte, a positive electrode body configured to support the positive electrode plate, and a winding unit configured to wind the copper foil supplied from the negative electrode drum, wherein the positive electrode plate includes a base unit coupled to the positive electrode body, a connecting unit coupled to the positive electrode body to overlap a portion of the base unit, and a base fastening unit coupling the base unit to the positive electrode body, the connecting unit includes a covering member disposed to overlap the base unit and an inclined member inclined with respect to the covering member, and the covering member covers the base fastening unit between the base fastening unit and the negative electrode drum.

A deflectable, flexible device includes an elongate body, a convoluted tip portion at a distal end of the elongate body, and a lumen to receive one or more wires. The convoluted tip portion includes an electroformed pleated region which is formed by electrodepositing a metal on a mandrel having a pleated region. The convoluted tip portion may be hermetically sealed to permit repeated sterilization. The electroformed pleated region may include one or more fluid emission orifices. The convoluted tip portion extends or bends in response to fluid pressure manipulation, contact with tissue, manipulation with an internal spring or wire, or by a user pushing, pulling, or twisting the catheter directly or via an introducer sheath or the like. The convoluted tip portion may further include an RF ablation element or other energy-driven technique to create continuous linear lesions or a sensing element.

A deflectable, flexible device includes an elongate body, a convoluted tip portion at a distal end of the elongate body, and a lumen to receive one or more wires. The convoluted tip portion includes an electroformed pleated region which is formed by electrodepositing a metal on a mandrel having a pleated region. The convoluted tip portion may be hermetically sealed to permit repeated sterilization. The electroformed pleated region may include one or more fluid emission orifices. The convoluted tip portion extends or bends in response to fluid pressure manipulation, contact with tissue, manipulation with an internal spring or wire, or by a user pushing, pulling, or twisting the catheter directly or via an introducer sheath or the like. The convoluted tip portion may further include an RF ablation element or other energy-driven technique to create continuous linear lesions or a sensing element.