Bi-directional cannula feature capture mechanism

A bi-directional cannula feature capture mechanism comprising:

• an inner housing, wherein the inner housing comprises a proximal cannula feature mating component and a distal cannula feature mating component;
• an outer housing, wherein the outer housing comprises an inner surface configured to receive the inner housing, wherein an inner surface of the outer housing comprises at least one interlock component that prevents the inner housing from moving distally within the outer housing after the inner housing has been proximally retracted into the outer housing;
• and
• a cannula that extends into the inner housing, wherein the cannula comprises a cannula feature, wherein the cannula feature comprises a proximal engagement surface and a distal engagement surface.

A catheter device, comprising:

• a bi-directional cannula feature capture mechanism comprising:
• an inner housing, wherein the inner housing comprises a first material, wherein the inner housing comprises a proximal cannula feature mating component and a distal cannula feature mating component;
• an outer housing, wherein the outer housing comprises a second material, wherein a flexibility of the second material is different from a flexibility of the first material, wherein the inner housing is configured to translate proximally through the outer housing, wherein the outer housing comprises at least one catch that prevents the inner housing from moving distally within the outer housing after the inner housing has translated proximally through the outer housing;
• and
• a cannula that extends into the inner housing, wherein the cannula comprises a distal tip and a cannula feature, wherein the cannula feature comprises a proximal engagement surface and a distal engagement surface, wherein when the cannula is retracted proximally within the inner housing, the proximal engagement surface contacts the proximal cannula feature to prevent the cannula feature from moving proximally out of the bi-directional cannula feature capture mechanism and the distal cannula feature mating component contacts the distal engagement surface to prevent the cannula feature from moving distally out of the bi-directional cannula feature capture mechanism, thereby shielding the distal tip within the bi-directional cannula feature capture mechanism.