Intravenous catheter systems and methods
An intravenous (IV) catheter system may include a catheter adapter having a proximal end and a distal end. The IV catheter system may also include a cannula extending through the catheter adapter. A proximal end of the cannula may include a notch. The IV catheter system may also include a needle hub, which may be coupled to the proximal end of the catheter adapter. The needle hub may include a flashback chamber, which may be in fluid communication with the notch when the IV catheter system is in an insertion configuration.
1 . An IV catheter system, comprising:
a catheter adapter having a proximal end, a distal end, and a lumen extending through the proximal end and the distal end, wherein the catheter adapter further comprises an annular wall extending between the distal end and the proximal end and forming the lumen, wherein a first portion of the annular wall at the proximal end of the catheter adapter is constructed of a first material and a second portion of the proximal end of the annular wall is constructed of a second material, wherein the second portion comprises a notch proximate the first portion, the notch having a width and a length longer than the width, wherein the length of the notch is generally parallel with a longitudinal axis of the catheter adapter, the notch extending in a proximal direction to a proximal-most surface of the proximal end of the catheter adapter, wherein the first portion and the second portion are proximate the lumen, wherein the second material has a lower durometer than the first material.
2 . The IV catheter system of claim 1 , wherein the notch forms a bottom portion of an outer circumference of the annular wall configured to be closest to skin of a patient.
3 . The IV catheter system of claim 1 , further comprising a septum disposed within the lumen of the catheter adapter, wherein the notch is proximal to the septum.
4 . The IV catheter system of claim 1 , wherein the catheter adapter further comprises an outer circumference, wherein the another second portion constructed of the second material and the first portion constructed of the first material are disposed on the outer circumference.
5 . An IV catheter system, comprising:
a catheter adapter having a proximal end, a distal end, and an outer circumference, wherein a portion of the catheter adapter is constructed of a first material and another portion of the catheter adapter is constructed of a second material, wherein the second material has a lower durometer than the first material; and
a securement platform coupled to the catheter adapter and constructed of the second material, wherein the another portion of the catheter adapter constructed of the second material extends from a proximal end of the securement platform to a proximal-most edge of the catheter adapter, wherein the portion of the catheter adapter constructed of the first material extends to the proximal-most edge of the catheter adapter, wherein the another portion of the catheter adapter comprises a strip forming a bottom surface of the catheter adapter configured to contact skin of a patient, wherein the another portion constructed of the second material and the portion constructed of the first material form the outer circumference at the proximal-most edge, wherein a width of the strip is less than the outer circumference of the catheter adapter.
6 . The IV catheter system of claim 5 , wherein the strip comprises a first edge, a second edge opposite the first edge, a width extending from the first edge to the second edge, and a length longer than the width and extending from the proximal end of the securement platform, wherein the first material is lateral to the first edge and lateral to the second edge and contacts the first edge and the second edge.
7 . The IV catheter system of claim 5 , further comprising a septum disposed within a lumen of the catheter adapter, wherein the strip is proximal to the septum.
8 . An IV catheter system, comprising:
a catheter adapter having a proximal end and a distal end, wherein a portion of the catheter adapter is constructed of a first material and another portion of the catheter adapter is constructed of a second material, wherein the second material has a lower durometer than the first material, wherein the another portion comprises an indicator feature having a T-shape and disposed on an upper surface of the catheter adapter, wherein the T-shape comprises a stem and a crossbar perpendicular to the stem, wherein both the stem and the crossbar contact an outer circumference of the catheter adapter; and
a central push tab feature coupled to the upper surface of the catheter adapter and constructed of the second material, wherein the indicator feature extends in a proximal direction from the central push tab feature.