Article archive
Synthetic vascular graft - Nylon
05/12/2011 22:29
Characteristics of Nylon :
heat resistance
dry/wet service capability
fatique resistance
used in non-lubricated operation
noise dampening
electrical insulator
chemical resistance and lastly mach inability
It has similar mechanical properties to Teflon and Dacron,...
Synthetic vascular graft - Teflon
04/12/2011 20:47
Teflon or polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tertrafluoroethylene which has high-molecular-weight compound consisting wholly of carbons and fluorine.
High conducive properties (can conduct thermal energy and the body’s electric current efficiently)
In woven...
Synthetic vascular graft - Dacron
29/11/2011 00:32
Also known as Polyethylene Terephthalate, Dacron comes into two forms which are woven and knitted form.
Woven Dacron
low porosity (<500ml/ cm2/ min),
no need pre-clotting
strong
stiff (non-stretchable
poor handling
frays at cut edges
Knitted...
Biological Vascular Grafts
14/11/2011 08:17Biological vascular graft
18/10/2011 22:29
Autograft, Allograft and Xenograft.
Autograft is a procedure where patient having their vessels taken from another graft or site in patient. (eg. long saphenous vein in peripheral vascular surgery. In thoracic surgery the use of internal mammary artery for coronary artery...
Anatomy of Vascular Graft
16/10/2011 23:39
Artificial Vascular Graft
Synthetic tubular element comprising a first end, a second end, an exterior surface, and interior surface that describe a lumen.
It also has a coating of adhesion matrix on the interior surface
A plurality of endothelial cells seeded and...
Applying of Vascular Graft
16/10/2011 23:25
Main objective of vascular graft : the repair, replacement,and bypass of sections of native or artificial vessels.
[1] Arteriosclerosis is also known as hardening of the arteries. Arteriosclerosis causes a reduction in vein size and blood flow, thereby diminishing...
Artificial Vascular Graft
16/10/2011 23:20
Diverges into two types:
Types of Artificial Vascular Graft
1) Textile
2) Non textile
Textile
-Dacron (polyethylene terephthalate)
-Nylon
Non Textile
-ePTFE (one of form of polytetrafluroethylene)
-PU...
Biological Vasular Graft
16/10/2011 23:11
BiOloGiCaL VasCuLaR GraFt ..........
It diverges into three parts :
Autograft
Allograft
Xenograft
AUTOGRAFT a.k.a AUTOTRANSPLANT
Tissue which is transplanted from one part of the body to another part within...
Preface
16/10/2011 21:58
wHaT iS VasCuLaR gRaFt ?????
A tube replacement of an artery or vein segments
Surgically implanted into the body
The diameter and length of the graft varies on the size of the artery/vein that has being replaced
TyPeS Of VasCuLaR...
Items: 1 - 10 of 11