Angioplasty is a surgical repair of a blood vessel; in particular balloon angioplasty is a non-invasive procedure where a balloon-tipped catheter is introduced into a blood vessel. An accurate estimate of the main mechanical properties of biological tissues is the first step for a successful angioplasty operation. Actually surgeons rely on balloon pressure-diameter data given by the producer obtained without considering balloon tissue interaction. In order to gain a deeper insight of the mechanical phenomena involved in balloon angioplasty, a test rig, which approximately reproduces in vivo conditions, was designed and set up to simulate the operation. By means of this apparatus one can also easily evaluate a change of volume of the arterial segment corresponding to a given pressure with high precision and estimate its compliance. Tests have been carried out with different kinds of samples, starting with commercial latex tubules, then using some handmade latex tubules of arterial size, up to animal carotidal and renal arteries.
Experimental compliance evaluation of arterial segments for angioplasty simulation
DI PUCCIO, FRANCESCA;FORTE, PAOLA;
2004-01-01
Abstract
Angioplasty is a surgical repair of a blood vessel; in particular balloon angioplasty is a non-invasive procedure where a balloon-tipped catheter is introduced into a blood vessel. An accurate estimate of the main mechanical properties of biological tissues is the first step for a successful angioplasty operation. Actually surgeons rely on balloon pressure-diameter data given by the producer obtained without considering balloon tissue interaction. In order to gain a deeper insight of the mechanical phenomena involved in balloon angioplasty, a test rig, which approximately reproduces in vivo conditions, was designed and set up to simulate the operation. By means of this apparatus one can also easily evaluate a change of volume of the arterial segment corresponding to a given pressure with high precision and estimate its compliance. Tests have been carried out with different kinds of samples, starting with commercial latex tubules, then using some handmade latex tubules of arterial size, up to animal carotidal and renal arteries.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.