A Home-Made Low-Cost Hydraulic Swivel and Catheter Assembly for Blood Pressure Recording and Drug Infusion in Freely Moving Mice

Abstract

We constructed a chassis that tightly fixes catheters for cannulation to the muscle. It can buffer pulling forces to avoid a mechanical tearing of the skin of mice as a result of movement. A simple hydraulic swivel was also made for blood pressure recording and drug infusion in freely moving mice.