Tungsten-rhenium suture needles with improved properties for coronary artery bypass graft surgery.

Tungsten-rhenium suture needles with improved properties for coronary artery bypass graft surgery.

Journal of biomedical materials research. Part B, Applied biomaterials (2010-06-25)

Frank R Cichocki, Robert E Maurer, S Neil Bar

PMID20574974

ABSTRACT

Suture needles are essential instruments for performing blood vessel anastomosis in coronary artery bypass graft (CABG) surgeries. Exceptional needle performance is needed now as never before because of the increasing prevalence of elderly patients with advanced stages of coronary disease and calcified tissue. The various properties that affect the performance of suture needles used in CABG surgery are reviewed and recent progress towards improving needle performance through the use of tungsten-rhenium alloys and novel lubricous needle coatings is presented. Substantial enhancement of properties beyond those exhibited by commercially available stainless steel suture needles has been made, including an approximate 40% increase in strength, 100% increase in stiffness, and superior multiple pass penetration performance in both synthetic rubber media and human cadaver carotid arteries (p < 0.01).

MATERIALS

Product Number

Brand

Product Description

GF43142969

Tungsten, foil, light tested, 25x25mm, thickness 0.025mm, as rolled, 99.95%

GF59032481

Tungsten, insulated wire, 5m, conductor diameter 0.0125mm, insulation thickness 0.0035mm, polyimide insulation, 99.9%

GF14483088

Tungsten, insulated wire, 0.2m, conductor diameter 0.015mm, insulation thickness 0.002mm, polyimide insulation, 99.9%

GF32754595

Tungsten, foil, light tested, 150x150mm, thickness 0.075mm, as rolled, 99.95%

GF21637896

Tungsten, insulated wire, 20m, conductor diameter 0.05mm, insulation thickness 0.008mm, polyimide insulation, 99.9%

GF53130945

Tungsten, foil, 5m coil, thickness 0.05mm, coil width .51mm, as rolled, 99.95%

GF42004707

Tungsten, foil, 5m coil, thickness 0.10mm, coil width .9mm, as rolled, 99.95%

GF75205885

Tungsten, foil, 5m coil, thickness 0.1mm, coil width 1.5mm, as rolled, 99.95%

GF82229542

Tungsten, insulated wire, 0.5m, conductor diameter 0.015mm, insulation thickness 0.002mm, polyimide insulation, 99.9%

GF06146805

Tungsten, foil, not light tested, 25x25mm, thickness 0.004mm, 99.95%

GF31886589

Tungsten, foil, 5m coil, thickness 0.035mm, coil width .5mm, as rolled, 99.95%

GF75672254

Tungsten, insulated wire, 2m, conductor diameter 0.0125mm, insulation thickness 0.0035mm, polyimide insulation, 99.9%

GF31324384

Tungsten, foil, 5m coil, thickness 0.025mm, coil width 1mm, as rolled, 99.95%

GF11784449

Tungsten, foil, light tested, 150x150mm, thickness 0.025mm, as rolled, 99.95%

GF73441199

Tungsten, microfoil, disks, 10mm, thinness 0.1μm, specific density 182μg/cm², permanent mylar 3.5μm support, 99.95%

GF24694049

Tungsten, insulated wire, 2m, conductor diameter 0.015mm, insulation thickness 0.002mm, polyimide insulation, 99.9%

GF71173155

Tungsten, insulated wire, 0.2m, conductor diameter 0.0125mm, insulation thickness 0.0035mm, polyimide insulation, 99.9%

GF28186072

Tungsten, foil, light tested, 150x150mm, thickness 0.05mm, as rolled, 99.95%

GF90717666

Tungsten, microfoil, disks, 10mm, thinness 0.05μm, specific density 96μg/cm², permanent mylar 3.5μm support, 99.95%

GF69782349

Tungsten, insulated wire, 5m, conductor diameter 0.075mm, insulation thickness 0.02mm, PTFE (polytetrafluoroethylene) insulation, 99.9%

GF91891266

Tungsten, insulated wire, 10m, conductor diameter 0.05mm, insulation thickness 0.008mm, polyimide insulation, 99.9%

GF86719461

Tungsten, foil, not light tested, 25x25mm, thickness 0.006mm, 99.95%

GF18063783

Tungsten, microfoil, disks, 10mm, thinness 0.25μm, specific density 474μg/cm², permanent mylar 3.5μm support, 99.95%

GF79060103

Tungsten, insulated wire, 2m, conductor diameter 0.025mm, insulation thickness 0.005mm, polyimide insulation, 99.9%

GF24079945

Tungsten, foil, not light tested, 100x100mm, thickness 0.0125mm, 99.95%

GF07154939

Tungsten, lump, 100g, max. size 5mm

GF22793014

Tungsten, insulated wire, 10m, conductor diameter 0.075mm, insulation thickness 0.02mm, PTFE (polytetrafluoroethylene) insulation, 99.9%

GF81654655

Tungsten, insulated wire, 5m, conductor diameter 0.05mm, insulation thickness 0.008mm, polyimide insulation, 99.9%

GF12679106

Tungsten, foil, light tested, 25x25mm, thickness 0.015mm, 99.95%

GF60242723

Rhenium, wire reel, 1m, diameter 0.178mm, annealed, 99.97%