Envigo’s standard catheter exteriorization is fixed, not allowing for access of the coiled subcutaneous catheter tubing.
A small midline skin incision is made dorsally, between the scapulae of the animal, and a subcutaneous pouch is created near the incision, to house the excess catheter tubing.
The catheter is tunneled subcutaneously from vessel insertion point and exteriorized out through the dorsal skin incision. Of the two (2) dumb-bell suture points on the exteriorized end of the catheter, the first is placed under the skin and secured with non-absorbable suture, anchoring the catheter in place.
A sterile wound clip is placed over the skin incision and catheter, effectively and simultaneously closing the incision and anchoring the catheter in place. The second colored dumb-bell suture point on the exteriorized end of the catheter is placed extraneously and secured to the skin with non-absorbable suture, again anchoring the catheter in place.
Approximately 25 mm of catheter is exteriorized and the catheter end is sealed with a sterile stainless steel plug. Animals must be singly housed.