The object
Paul G. Yock invented the Rapid Exchange balloon angioplasty and stenting system, enabling a single operator to place cardiovascular devices rather than managing a long guidewire with two people. Stanford identifies it as the primary approach used worldwide and credits Yock with further catheter and intravascular-ultrasound device inventions.
What Paul did
Invented the Rapid Exchange balloon angioplasty and stenting system and the Smart Needle access device.
Why it matters
Stanford describes Rapid Exchange as the primary system used worldwide and as a major simplification of interventional cardiology.
Living-status check
Stanford's 2025-26 faculty profile lists Yock as professor emeritus, Biodesign founder and an active instructor.