Collapsible fluid collection and disposal system and related methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/00
A47L-005/00
F16J-015/16
출원번호
US-0837297
(2010-07-15)
등록번호
US-8460256
(2013-06-11)
발명자
/ 주소
Michaels, Thomas L.
Johnson, Russ A.
Hill, Eric D.
출원인 / 주소
Allegiance Corporation
대리인 / 주소
Arent Fox LLP
인용정보
피인용 횟수 :
3인용 특허 :
233
초록▼
A fluid collection system includes a disposable collection container and a disposable collection container receiving housing, the housing having a cavity and a suction source. The fluid collection container may include a flexible liner and a shelf for diverting fluid from the suction and to assist w
A fluid collection system includes a disposable collection container and a disposable collection container receiving housing, the housing having a cavity and a suction source. The fluid collection container may include a flexible liner and a shelf for diverting fluid from the suction and to assist with a collapse of the liner during evacuation of the fluid from the liner. The collection container receiving housing may include a piston assembly having a main piston body and a scraper ring. The collection container receiving housing may include a piston stop feature. The system may include a partially hydrophobic filter and a flat surface suction tool.
대표청구항▼
1. A fluid collection system, comprising: a disposable collection container having a flexible portion, a first opening for receiving fluid, and a second opening; anda receiving housing sized to receive the disposable collection container, the receiving housing including: a cavity into which the flex
1. A fluid collection system, comprising: a disposable collection container having a flexible portion, a first opening for receiving fluid, and a second opening; anda receiving housing sized to receive the disposable collection container, the receiving housing including: a cavity into which the flexible portion of the disposable collection container expands;a suction source connectable to the second opening in the disposable collection container; anda piston assembly positioned within the cavity, wherein the piston assembly includes a main piston body and a scraper ring. 2. The fluid collection system according to claim 1, wherein the scraper ring includes a peripheral edge that extends above the main piston body and is configured to provide an interference fit with an interior surface of the cavity. 3. The fluid collection system according to claim 2, wherein the peripheral edge of the scraper ring is configured to flex against the interior surface of the cavity. 4. The fluid collection system according to claim 2, wherein the peripheral edge of the scraper ring extends from the main piston body to a height that enables the peripheral edge to conform to the interior surface of the cavity. 5. The fluid collection system according to claim 2, wherein the scraper ring is attached to the main piston body such that the peripheral edge of the scraper ring maintains contact with the interior surface of the cavity when the main piston body is off center. 6. The fluid collection system according to claim 2, wherein the piston assembly includes a support structure that supports the scraper ring. 7. The fluid collection system according to claim 6, wherein the support structure includes ribs formed in the scraper ring. 8. The fluid collection system according to claim 6, wherein the support structure includes ribs formed in the main piston body. 9. A fluid collection system, comprising: a disposable collection container having a flexible portion; anda receiving housing sized to receive the disposable collection container, the receiving housing including: a cavity into which the flexible portion of the disposable collection container expands;a suction source connectable to the disposable collection container; anda piston assembly positioned within the cavity, wherein the piston assembly includes a main piston body, a scraper ring, and a valve assembly communicating between an area adjacent a first side of the piston and an area adjacent a second side of the piston, wherein the scraper ring includes a surface defining openings providing communication between an area between the first side of the piston and a first surface of the scraper ring and an area adjacent a second side of the scraper ring. 10. A fluid collection system, comprising: a disposable collection container having a flexible portion; anda receiving housing sized to receive the disposable collection container, the receiving housing including: a cavity into which the flexible portion of the disposable collection container expands;a suction source connectable to the disposable collection container; anda piston assembly positioned within the cavity, wherein the piston assembly includes a main piston body and a scraper ring, wherein the scraper ring comprises an Ultra High Molecular Weight (UHMW) material. 11. The fluid collection system according to claim 10, wherein the UHMW material has a molecular weight of at least one million Daltons. 12. The fluid collection system according to claim 10, wherein the UHMW material comprises UHMW polyethylene. 13. The fluid collection system according to claim 1, wherein the scraper ring comprises a hydrophobic material. 14. The fluid collection system according to claim 1, wherein the cavity comprises a piston stop including: a first opening in a cavity wall;a second opening in the cavity wall; anda channel connecting the first opening to the second opening, wherein the first opening is positioned above a desired piston stop height and the second opening is positioned below the desired piston stop height. 15. The fluid collection system according to claim 14, wherein the piston stop further includes a valve connected to the channel, wherein the valve has an open position to communicate a pressure differential through the channel between the first opening and the second opening and a closed position to prevent communication of a pressure differential between the first opening and the second opening. 16. A fluid collection system, comprising: a disposable collection container having a flexible portion; anda receiving housing sized to receive the disposable collection container, the receiving housing including: a cavity into which the flexible portion of the disposable collection container expands;a suction source connectable to the disposable collection container; anda piston assembly positioned within the cavity, wherein the piston assembly includes a main piston body and a scraper ring,wherein the cavity comprises a piston stop including: a first opening in a cavity wall;a second opening in the cavity wall;a channel connecting the first opening to the second opening, wherein the first opening is positioned above a desired piston stop height and the second opening is positioned below the desired piston stop height;a valve connected to the channel, wherein the valve has an open position to communicate a pressure differential through the channel between the first opening and the second opening and a closed position to prevent communication of a pressure differential between the first opening and the second opening; and a third opening in the cavity wall,wherein the channel connects the second opening to the third opening, and wherein the location between the second opening and the third opening is different one of a plurality of desired piston stop positions. 17. The fluid collection system according to claim 2, wherein the peripheral edge of the scraper ring is configured to prevent the flexible liner of the collection container from being pinched between an inner wall of the cavity and the main body of the piston.
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