Vascular Access Harness™ for Rats

Instech’s 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 (see Partners list at left). Then, to begin an infusion study, simply wipe the septum with disinfectant and connect the VAH tether to the harness. Flush or inject directly into the harness as needed using a syringe fitted with an SN22 septum needle or the male VAHLS22/30 connector with needlestick protection. Use the new SIP22P plug to seal off the tether connector while the animal is not connected.

The standard system is designed for single channel infusion of rats using a 22ga swivel. For best results use 3Fr polyurethane catheters. A 25cm round-tip PU catheter specifically designed for the VAH (025x040in ID/OD, about 10% larger than a standard 3Fr SoloCath) is available as part of part number VAH95AB-C. All parts are supplied EtO sterilized.

• The VAH is ideal for blood sampling. See VAH for Rat Blood Sampling for additional information.
• Also available in a two-channel version for simultaneous infusion and sampling or for bile sampling with rats.
• Now available in a miniature version for mice.
• Also available in a version with extra long (14in/36cm) belly bands for large rats or guinea pigs. Contact us for pricing on part number VAH95AB14. (Standard belly band length is 9in/23cm.)
• Please contact Instech for pricing on order quantities of 50 or more pieces or for custom configurations.

U.S. Pricing

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tether information [PDF]