Catheters; Medical apparatus and instruments for use in percutaneous deep venous arterialization procedures; Medical apparatus for use in treating limb ischemia; Medical apparatus and instruments for treating cardiovascular disease; Medical devices for use in treating or diagnosing limb ischemia; Medical devices for use in treating limb ischemia; Medical devices to treat intravascular sites; Medical instruments for use in treating limb ischemia; Medical introducers; Medical needles and introducers; Surgical devices and instruments; Surgical implants comprising artificial material and associated surgical instrument sets; Surgical instruments and apparatus; Surgical instruments for use in vascular surgery; Surgical instruments, namely, catheters, introducers, medical introducer sets comprised of medical access needles, guidewires, medical introducers, power supplies power interface cables