Patent ID: 9675755
Date: 2017-06-13
CPC Classifications: A61M,B01D

Claim:
1. A syringe filter for containing a filter membrane, comprising: a first fluid distribution surface configured to be positioned on one side of the filter membrane; an inlet port in fluid communication with the first fluid distribution surface; a first plurality of distribution pathways formed on the first fluid distribution surface and in fluid communication with the inlet port; at least one first fluid channel formed on the first distribution surface and in fluid communication with the first plurality of distribution pathways; a second fluid distribution surface generally opposing the first fluid distribution surface and configured to be positioned on another side of the filter membrane; an outlet port in fluid communication with the second fluid distribution surface; a second plurality of distribution pathways formed on the second fluid distribution surface and in fluid communication with the outlet port; at least one second fluid channel formed on the second distribution surface and in fluid communication with the second plurality of distribution pathways; a membrane positioned between and supported by the first and second fluid distribution surfaces, the membrane being configured to remove at least one particulate from a fluid moving from the first fluid distribution surface, across the membrane, to the second fluid distribution surface; a membrane retention ring on at least one of the first and second fluid distribution surfaces, the membrane retention ring configured to engage the membrane when the membrane is positioned between the first and second fluid distribution surfaces and to form a fluid tight seal between the membrane and the first and second fluid distribution surfaces; and a membrane retention groove on the other of the first and second fluid distribution surfaces and aligned with the membrane retention ring, the membrane retention groove configured to receive the membrane retention ring when the membrane retention ring forms the fluid tight seal between the membrane and the first and second fluid distribution surfaces, wherein the first plurality of distribution pathways and the at least one first fluid channel are configured to distribute fluid flow from the inlet port to one side of the membrane and the second plurality of distribution pathways and the at least one second fluid channel are configured to direct fluid flow from another side of the membrane to the outlet port, and further wherein the outlet port includes a centrally-positioned membrane support and at least one fluid communicating pathway extending through the centrally-positioned membrane support.