# US 11,076,980 B2 · Menstrual fluid collection device and method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,076,980 B2 - Document ID: US11076980B2 - Status: Granted - Kind: B2 - Application number: 15/704,347 - Filed: 2017-09-14 - Published: 2019-05-02 - Granted: 2021-08-03 - Earliest claimed: 2016-09-14 - Applicants: Kate Hu - Inventors: Kate Hu - Web page: https://patentgrep.com/patent/US11076980B2 ## CPC - A61F 5/4553: {placed in the vagina, e.g. for catamenial use (pessaries A61F6/08; absorbent cups A61F13/2045)} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A menstrual fluid collection device including a flexible container having a storage cavity to store a fluid and a movable opening formed in a closed position at a first end of the flexible container, the storage cavity to receive the fluid when the movable opening is in an open position and an inflatable seal member coupled to and extending around the flexible container, the inflatable seal member configured to move the opening to the open position, when inflated. ## Claims ### Claim 1 A menstrual fluid collection device comprising: a flexible container having a double wall formed from a single sheet having a first durometer including an outer wall and an inner wall and a storage cavity to store a fluid and a movable opening formed in a closed position at a first end of the flexible container, the storage cavity to receive the fluid when the movable opening is in an open position; an inflatable seal member coupled to and extending around the flexible container, the inflatable seal member having a second durometer and configured to move the moveable opening to the open position when air is inflated in between the outer and inner wall of the flexible container; a pumping member having a pump bulb coupled to the outer wall of the flexible container; and a valve member disposed between the outer and inner wall of the flexible container, wherein the pumping member is configured to inflate the inflatable seal member through the valve member when depressed and the first durometer is larger than the second durometer so that the movable opening is biased toward the closed position. ### Claim 2 (depends on 1) The menstrual fluid collection device of claim 1, wherein at least one of the flexible container and the inflatable seal member is elastomeric. ### Claim 3 (depends on 1) The menstrual fluid collection device of claim 1, wherein the valve member controls an amount of gas disposed within the inflatable seal member. ### Claim 4 (depends on 3) The menstrual fluid collection device of claim 3, further comprising a valve control member coupled to the valve member to thereby allow a user to open and close the movable opening of the flexible container. ### Claim 5 (depends on 4) The menstrual fluid collection device of claim 4, further comprising a protrusion formed on an outer surface of the inflatable seal member configured to create a seal within a user's vagina. ### Claim 6 (depends on 3) The menstrual fluid collection device of claim 3, wherein the valve member is a one-way valve configured to allow gas to flow in a single direction. ### Claim 7 A method for using a menstrual fluid collection device, the device comprising a flexible container having a double wall formed from a single sheet having a first durometer including an outer wall and an inner wall and a storage cavity to store a fluid and a movable opening formed in a closed position at a first end of the flexible container, the storage cavity to receive the fluid when the movable opening is in an open position, an inflatable seal member coupled to and extending around the flexible container, the inflatable seal member having a second durometer and configured to move the movable opening to the open position when air is inflated in between the outer and inner wall, a pumping member having a pump bulb coupled to the outer wall of the flexible container and a valve member disposed between the outer and inner wall of the flexible container, wherein the pumping member is configured to inflate the inflatable seal member through the valve member when depressed and the first durometer is larger than the second durometer so that the movable opening is biased toward the closed position, the method comprising: inserting the first end of the flexible container into a user's vagina; inflating the inflatable seal member with a gas by depressing the pumping member to open the movable opening; allowing menstrual fluid to flow into the storage cavity; releasing the gas within the inflatable seal member to allow the movable opening to return to the closed position; and removing the flexible container from the user's vagina. ### Claim 8 (depends on 7) The method of claim 7, wherein the pumping member selectively inflates the inflatable seal member. ### Claim 9 (depends on 7) The method of claim 7, wherein at least one of the flexible container and the inflatable seal member is elastomeric. ### Claim 10 (depends on 9) The method of claim 9, wherein the pumping member includes at least one of a manual air pump bulb and an automatic air pump. ### Claim 11 (depends on 8) The method of claim 8, wherein the valve member is coupled between the pumping member and the inflatable seal member to control an amount of gas disposed within the inflatable seal member. ### Claim 12 (depends on 11) The method of claim 11, further comprising a valve control member coupled to the valve member to thereby allow a user to open and close the movable opening of the flexible container. ### Claim 13 (depends on 9) The method of claim 9, wherein the pumping member further includes a protrusion formed on an outer surface of the inflatable seal member configured to create a seal within a user's vagina. ### Claim 14 (depends on 11) The method of claim 11, wherein the valve member is a one-way valve configured to allow gas to flow in a single direction.