Seldinger Technique
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- Điều hướng trang này:
- Trademark of Dr. Dotter
- Simmonsi) 8. Mickelson 9. Simmons 2
| Vascular Sheaths
- Vascular sheath: Placed over the wire, through the access site. open at one end and capped with a hemostatic valve at the other. Walls are non tapered - beveled to closely match the dilator size so as to give a smooth transition between sheath and dilator. Available in various lengths and diameters. Diameter of a sheath is measured in "French". Sheath selection is based on intended purpose - Short 4/5 Fr sheaths for diagnostic purposes. Long sheaths with larger diameters for interventions. Catheters - Interventional Radiologist - Pioneer in the field of Minimally Invasive Procedures (Catheterization) - Developed Continuous X-Ray Angio Cardiography • Performed First - Angioplasty (PTCA) Procedure in 1964. Trademark of Dr. Dotter "If a plumber can do it to pipes. we can do it to blood vessels." Charles T. Dotter M.D. Common catheter shapes. 1. Straight 2. Davis (short angled tip) 3. Multipurpose ("hockey-stick") 4. Headhunter (H1) 5. Cobra-2 (cobra-1 has tighter curve, cobra-3 has larger and longer curve); 6. Rösch celiac 7. Visceral (very similar to Simmonsi) 8. Mickelson 9. Simmons 2 10. Pigtail 11. Tennis racket. - Complex Catheters - Complex catheter shapes must be re-formed inside the body after insertion over a guid ewire. - Any catheter will resume its original shape, provided there is sufficient space within the vessel lumen and memory in the catheter material. - Some catheter shapes cannot re-form spontaneously in a blood vessel, particularly the larger recurved designs like the Simmons. Aortic spin technique for re-forming a Simmons catheter (works best for Simmons 1). Catheter is simultaneously twisted and advanced in proximal descending thoracic aorta. tải về 0.6 Mb. Chia sẻ với bạn bè của bạn:
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