A steerable sheath access device assembly, comprising a handle assembly, and a sheath access device, comprising: an elongated member having a proximal end, a distal end, and a lumen extending through the elongated member from the proximal end to the distal end; the elongated member having a proximal section made of a first material and a distal section made of a second material, the proximal section extending from the proximal end to an intersection of the proximal section and the distal section, and the distal section extending from the intersection of the proximal section and the distal section to the distal end, wherein the handle assembly is connected to the proximal end of the elongated member, a primary pull wire connected to the elongated member, the primary pull wire extending along the length of the elongated member from the handle assembly to a first anchor ring at a distal end of the distal section, wherein the first anchor ring is provided at least in part within the lumen of the elongated member, and a secondary pull wire connected to the elongated member, the secondary pull wire extending along the length of the elongated member from the handle assembly to a second anchor ring at the intersection of the proximal section and the distal section, wherein the second anchor ring is provided at least in part within the lumen of the elongated member, wherein the first material of the proximal section is more rigid than the second material of the distal section; wherein the elongated member is configured such that deflection of the distal section defines a primary curve including a first inner radius (r 1) of curvature, wherein the elongated member is configured such that deflection of the proximal section defines a secondary curve including a second inner radius (r 2, r 3) of curvature, and wherein the first inner radius (r 1) of curvature of the primary curve is less than the second inner radius (r 2, r 3) of curvature of the secondary curve. an elongated member having a proximal end, a distal end, and a lumen extending through the elongated member from the proximal end to the distal end; the elongated member having a proximal section made of a first material and a distal section made of a second material, the proximal section extending from the proximal end to an intersection of the proximal section and the distal section, and the distal section extending from the intersection of the proximal section and the distal section to the distal end, wherein the handle assembly is connected to the proximal end of the elongated member, a primary pull wire connected to the elongated member, the primary pull wire extending along the length of the elongated member from the handle assembly to a first anchor ring at a distal end of the distal section, wherein the first anchor ring is provided at least in part within the lumen of the elongated member, and a secondary pull wire connected to the elongated member, the secondary pull wire extending along the length of the elongated member from the handle assembly to a second anchor ring at the intersection of the proximal section and the distal section, wherein the second anchor ring is provided at least in part within the lumen of the elongated member, wherein the first material of the proximal section is more rigid than the second material of the distal section; wherein the elongated member is configured such that deflection of the distal section defines a primary curve including a first inner radius (r 1) of curvature, wherein the elongated member is configured such that deflection of the proximal section defines a secondary curve including a second inner radius (r 2, r 3) of curvature, and wherein the first inner radius (r 1) of curvature of the primary curve is less than the second inner radius (r 2, r 3) of curvature of the secondary curve.