Patent ID: 8529541
Filing Date: 2013-09-10
Classification: A61M

Abstract:
1. A method of infiltrating fluid into subcutaneous tissue or muscle of a patient, the method comprising: a) providing a first cannula having a tubular needle with apertures disposed about a distal portion of the needle; b) inserting the tubular needle into a hole formed in a skin of the patient; c) inserting the apertures disposed on the needle into the patient; d) wedging an enlarged hub which is larger than the tubular needle and the hole into the hole formed in the skin of the patient for forming a seal between the hub and the hole to minimize leakage of fluid to be flowed through apertures of the needle; e) flowing fluid through the hub and apertures of the needle and into the subcutaneous tissue or muscle of the patient; f) blocking fluid flow out of the hole due to flow of fluid through apertures disposed on the needle; and g) repeating steps of a)-f) with a second cannula by inserting the second cannula into the patient adjacent to the first cannula.