A catheter system, comprising: a catheter assembly comprising a catheter adapter and a catheter extending distally from the catheter adapter; a needle assembly coupled to the catheter assembly, the needle assembly comprising a needle hub and an introducer needle, wherein the needle hub is coupled to a proximal end of the catheter adapter and wherein a proximal end of the introducer needle is secured within the needle hub; and a housing retained within a lumen of the catheter adapter, the housing comprising: a first resilient element, comprising a proximal end, a distal end, a first central bore, and a coupling element; a second resilient element proximal to the first resilient element, wherein the second resilient element comprises a proximal end, a distal end, a second central bore, and another coupling element, wherein the coupling element and the other coupling element are coupled together, wherein the first central bore and the second central bore form a central passageway configured to receive a longitudinal shaft of the introducer needle therethrough, wherein the first and second resilient elements (80, 82) are configured to form a V-shape in response proximal retraction of the introducer needle proximal to a distal wall of the first resilient element. a catheter assembly comprising a catheter adapter and a catheter extending distally from the catheter adapter; a needle assembly coupled to the catheter assembly, the needle assembly comprising a needle hub and an introducer needle, wherein the needle hub is coupled to a proximal end of the catheter adapter and wherein a proximal end of the introducer needle is secured within the needle hub; and a housing retained within a lumen of the catheter adapter, the housing comprising: a first resilient element, comprising a proximal end, a distal end, a first central bore, and a coupling element; a second resilient element proximal to the first resilient element, wherein the second resilient element comprises a proximal end, a distal end, a second central bore, and another coupling element, wherein the coupling element and the other coupling element are coupled together, wherein the first central bore and the second central bore form a central passageway configured to receive a longitudinal shaft of the introducer needle therethrough, wherein the first and second resilient elements (80, 82) are configured to form a V-shape in response proximal retraction of the introducer needle proximal to a distal wall of the first resilient element. a first resilient element, comprising a proximal end, a distal end, a first central bore, and a coupling element; a second resilient element proximal to the first resilient element, wherein the second resilient element comprises a proximal end, a distal end, a second central bore, and another coupling element, wherein the coupling element and the other coupling element are coupled together, wherein the first central bore and the second central bore form a central passageway configured to receive a longitudinal shaft of the introducer needle therethrough, wherein the first and second resilient elements (80, 82) are configured to form a V-shape in response proximal retraction of the introducer needle proximal to a distal wall of the first resilient element.