Systems and methods for accessing the lumen of a vessel

An apparatus for accessing the lumen of a vessel, the apparatus comprising:

• a reusable handheld device, wherein the reusable handheld device comprises,
• an imaging device attachment, wherein the imaging device attachment is utilized to secure an image capturing instrument to the reusable handheld device;
• an arm coupled to the imaging device attachment, wherein the arm provides a cartridge attachment;
• a slider stop bar coupled to a needle slider, wherein the slider stop bar advances with the needle slider;
• and
• a slide stop attached to the reusable handheld device that is positioned in a sliding direction of the slider stop bar to impede advancement of the slider stop bar when it comes into contact with the slide stop;
• and
• a disposable cartridge attached to the arm of the reusable handheld device, wherein the disposable cartridge houses a needle or sheath that advances to the insertion depth indicated on the depth scale to access the lumen of the vessel, the cartridge comprises
• the needle slider slidably attached to the disposable cartridge, wherein the needle slider is coupled to the needle in the disposable cartridge and advancing the needle slider a predetermined amount advances a tip of the needle to the insertion depth;
• a slider track receiving the needle slider, wherein when the needle slider is advanced the predetermined amount, the slider stop bar contacts the slide stop prior to contacting an end of the needle slider track to prevent the needle slider from advancing along the needle slider track beyond the predetermined amount;
• and
• a sheath slider slidably attached to the slider track of the disposable cartridge, wherein the sheath slider is coupled to the sheath in the disposable cartridge.