A medical device, comprising: an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal portion and a shaft distal portion; an ablation tip (350, 352; 400, 402; 472, 500) connected to the shaft distal portion, wherein the ablation tip (350, 352; 400, 402; 472, 500) is a conductive shell disposed over an end of the shaft distal portion; a printed temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) thermally coupled with the conductive shell, wherein the temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) is a printed temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) and is configured to sense a temperature of the conductive shell; and a pair of leads (334, 336; 414; 424, 426; 438; 454, 456; 486) that extend along the elongate shaft and are electrically coupled with the temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516), wherein the temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) is printed on a substrate and the substrate is disposed on the conductive shell, and wherein the substrate includes a three-dimensional profile, and wherein the medical device further comprises an electrode (200; 272; 312; 478; 530; 542) disposed on the substrate. an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal portion and a shaft distal portion; an ablation tip (350, 352; 400, 402; 472, 500) connected to the shaft distal portion, wherein the ablation tip (350, 352; 400, 402; 472, 500) is a conductive shell disposed over an end of the shaft distal portion; a printed temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) thermally coupled with the conductive shell, wherein the temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) is a printed temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) and is configured to sense a temperature of the conductive shell; and a pair of leads (334, 336; 414; 424, 426; 438; 454, 456; 486) that extend along the elongate shaft and are electrically coupled with the temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516), wherein the temperature sensor (330-1a, 330-2a, 332-1a, 332-2a; 330-1b, 330-2b, 332-1b, 332-2b; 330-1a', 330-2a', 332-1a', 332-2a'; 330-1b', 330-2b', 332-1b', 332-2b'; 362; 410; 422; 426, 432; 452; 484; 516) is printed on a substrate and the substrate is disposed on the conductive shell, and wherein the substrate includes a three-dimensional profile, and wherein the medical device further comprises an electrode (200; 272; 312; 478; 530; 542) disposed on the substrate.