The arterial blood module including an arterial blood collection element defining a collection chamber, and an arterial blood module removably connectable to a portion of the arterial blood collection element. The arterial blood module includes a hub body, a needle extending from the hub body, and a safety shield engaged with a portion of the hub body and transitionable from a first shield position in which a portion of the needle is exposed to a second shield position in which the needle is shielded by a portion of the safety shield. The arterial blood module also includes a venting chamber, wherein the venting is in fluid communication with the hub body to vent air bubbles from a collected blood sample within the collection chamber of the arterial blood collection element.

A medical syringe useful for administering an injection or withdrawing a bodily fluid, the syringe comprising a barrel, plunger assembly and a needle assembly having a selectively retractable needle, the plunger assembly further comprising a plunger handle with a plunger seal and a front tip extending forwardly of the plunger seal to extend through the barrel and into the an annular fluid seal disposed in a recess between the barrel and a forwardly projecting needle, thereby reducing dead space inside the syringe and helping anchor the annular fluid seal inside the recess.

A catheter insertion device includes a handle, a needle, a guide wire, and a catheter. The handle may have a proximal region and a distal region. The distal region may include a slot between a top extension and a bottom extension, which extends through a distal end. The needle may have a proximal end positioned in the proximal region and a distal end extending from the distal region. The guide wire may have a proximal end positioned in the proximal region of the handle and a distal end positioned in a lumen of the needle. The catheter may be positioned coaxially over the needle with a proximal end connected to a catheter hub. The catheter hub may be slidably disposed in the slot to enable movement from a first position in the distal region to a second position distal of the distal region.