Vascular Access Harness™

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Covance Infusion Harness™

Dacron Mesh Button Tethers

Polysulfone Button Tethers

Head Block Tether for Rats

Head Block Tether for Mice

Vascular Access Harness™

Tether to harness
connection

Instech’s new Vascular Access Harness™, an advancement on the Covance Infusion Harness™, permits quick, aseptic connection and disconnection of a catheterized rat and an infusion tether.

The system consists of two parts: a miniature external port housed in a harness (VAH95AB) and a mating spring tether with a connector (VAH95T) that pierces the septum to make the fluid connection. Animals can be ordered with a catheter and the harness pre-installed. Then, to begin an infusion study, simply wipe the septum with disinfectant and connect the VAH tether to the harness. Flushing or direct injection prior to tether connection is possible using a syringe fitted with an SN22 septum needle or the male VAHLS22/30 connector with needlestick protection. The system is designed for single channel infusion of rats using a 22ga swivel. All parts are supplied EtO sterilized.

Please contact Instech for pricing on order quantities of 50 or more pieces, for custom configurations, or for a list of animal vendors that offer VAH and catheter installation as part of their surgical services.

Ordering tips: if you already have swivels, order VAH95AB + VAH95T. If you need swivels with each tether, order VAH95AB + KVAH95T. Order the lower dead volume VAH95T/ABS when using with the Instech Automated Blood Sampler.

Patent pending.

U.S. Pricing

Model	Name	Price
VAH95AB	VAH harness with cover and septum needle, sterile	$30 / each
VAH95T	VAH tether assembly, 12in, sterile	$15 / each
KVAH95T	VAH tether kit: VAH95T, 375/22P, 24in CoEx, LS22, sterile	$45 / each
VAH95T/ABS	VAH tether assembly, low dead volume for ABS, 12in, sterile	$15 / each
KVAH95T/ABS	VAH tether kit for ABS: VAH95T/ABS, 375/22P, 1in SIL tubing, sterile	$45 / each
SN22	VAH septum needles, 22ga x 0.5in, sterile, individually packaged	$29 / dozen
VAHLS22/30	Male VAH connector with luer stub, 3cm tubing, sterile	$85 / dozen

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tether information [PDF]