Probe delivery device to facilitate advancement of a probe within an intravenous catheter
A probe delivery device can include a probe delivery mechanism that facilitates advancing a probe through an IV catheter. The probe delivery mechanism can be housed within a compartment of the probe delivery device and can include a probe that extends from the compartment into a fluid pathway formed within the probe delivery device. A portion of the probe delivery mechanism can extend out from the housing to enable a clinician to advance and retract the probe. The probe delivery device may include a vacuum tube receiver or a connector to enable a blood draw or fluid injection to be performed using the probe delivery device.
1 . A probe delivery device for delivering a probe, comprising:
a housing, comprising a distal end and a proximal end, wherein the distal end is configured to couple to an intravenous catheter device, wherein an inner surface of the housing comprises a housing stop member;
a first wheel, wherein an inner surface of the first wheel comprises a first wheel stop; and
a second wheel, wherein the second wheel comprises a tab,
wherein the first wheel and the second wheel are rotatable in a first direction and a second direction to transition the probe between a first configuration where the probe is in a fully retracted position and a second configuration where the probe is in a fully advanced position, and
wherein in response to the probe delivery device being disposed in the first configuration, the first wheel and the second wheel are prevented from rotating in the first direction but are configured to rotate in the second direction opposite the first direction, wherein the first wheel is configured to rotate more than one full turn in the second direction.
2 . The probe delivery device of claim 1 , wherein in response to the probe delivery device being disposed in the first configuration, a gap is disposed between the housing stop member and the first wheel stop and the tab bridges the gap between the housing stop and the first wheel stop.
3 . The probe delivery device of claim 1 , wherein in response to the probe delivery device being disposed in the first configuration, the tab is disposed between the housing stop member and the first wheel stop and contacts the housing stop member and the first wheel stop, wherein in response to the probe delivery device being disposed in the first configuration, the first wheel is configured to rotate independent from the housing and the second wheel in the second direction until the first wheel stop contacts the tab.
4 . The probe delivery device of claim 3 , wherein in response to the first wheel rotating independent from the housing and the second wheel in the second direction until the first wheel stop contacts the tab, the first wheel and the second wheel are configured to rotate together further in the second direction until the probe delivery device is disposed in the second configuration, wherein in the second configuration, the tab is disposed between the housing stop member and the first wheel stop and contacts the housing stop member and the first wheel stop.
5 . The probe delivery device of claim 4 , wherein the first wheel is configured to rotate in the second direction to advance the probe in a distal direction through the distal end of the housing.