Ostomy filter
AssigneeHollister Incorporated
InventorsGregory J. Czaplewski, Kanav Kumar
Life of this patent
Estimating the term…
Abstract
An ostomy pouch includes a body-side wall and a distal-side wall joined at an outer periphery and defining an interior volume comprising a collection area. The ostomy pouch also includes an inlet for receiving ostomy effluent, an outlet for egress of gas collected in the collection area, and a filter assembly covering the outlet. The ostomy pouch is configured to have an airflow rate @ 0.18 psi of greater than about 10 cc/s and less than about 40 cc/ss and a liquid (water) hold-out of greater than about 0.9 psi and less than about 6.0 psi.
Claims13
An ostomy pouch comprising:
- a body-side wall and a distal-side wall joined at an outer periphery and defining an interior volume comprising a collection area;
- an inlet for receiving ostomy effluent;
- an outlet for egress of gas collected in the collection area;
- and
- a filter assembly covering the outlet, the filter assembly comprising a backing layer, a filter media, and a membrane layer formed from a spunbond-meltblown-spunbond polypropylene (SMS PP) nonwoven, wherein the backing layer has a lower gas permeability than the filter media;
- wherein the ostomy pouch is configured to have an airflow rate @ 0.18 psi of greater than about 10 cc/s and less than about 40 cc/s and a liquid (water) hold-out of greater than about 0.9 psi and less than about 6.0 psi.
An ostomy pouch comprising:
- a body-side wall and a distal-side wall joined at an outer periphery and defining an interior volume comprising a collection area;
- an inlet for receiving ostomy effluent;
- an outlet for egress of gas collected in the collection area;
- and
- a filter assembly covering the outlet,
- wherein the ostomy pouch is configured to have an airflow rate @ 0.18 psi of greater than about 10 cc/s and less than about 40 cc/s and a liquid (water) hold-out of greater than about 0.9 psi and less than about 6.0 psi, wherein the outlet is defined by an opening having an area of about 0.06 inch2 to about 0.07 inch2.
An ostomy pouch comprising:
- a body-side wall and a distal-side wall joined at an outer periphery and defining an interior volume comprising a collection area;
- an inlet for receiving ostomy effluent;
- an outlet for egress of gas collected in the collection area;
- a filter assembly covering the outlet;
- a prefilter;
- and
- a protective panel, wherein the prefilter and the protective panel are configured to protect the filter assembly from ostomy effluent, wherein the filter assembly is attached to an outer surface of the distal-side wall or an inner surface of the distal-side wall, and the prefilter and the protective panel are attached to an inner surface of the distal-side wall,
- wherein the ostomy pouch is configured to have an airflow rate @ 0.18 psi of greater than about 10 cc/s and less than about 40 cc/s and a liquid (water) hold-out of greater than about 0.9 psi and less than about 6.0 psi.
Dependencies are inferred from the claim text.