Fluid flow control apparatus and patient fluid sampling method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61C-017/06
A61C-017/14
A61M-001/00
F16K-011/085
E03B-007/07
F16K-037/00
F17D-003/00
A61B-005/00
B65D-081/00
A61B-010/00
A61M-039/22
F16K-011/083
출원번호
US-0349118
(2009-01-06)
등록번호
US-9332969
(2016-05-10)
발명자
/ 주소
Han, Steve
Stenzler, Alex
출원인 / 주소
CareFusion 207, Inc.
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
2인용 특허 :
24
초록▼
A fluid flow control apparatus used in medical fluid sampling. The apparatus includes a valve assembly, first and second ports, and a cap. The valve assembly comprises a body rotatably assembled to a housing and defining a passageway and at least two recesses defined by an interior surface of the ho
A fluid flow control apparatus used in medical fluid sampling. The apparatus includes a valve assembly, first and second ports, and a cap. The valve assembly comprises a body rotatably assembled to a housing and defining a passageway and at least two recesses defined by an interior surface of the housing and the body which is formed separate from the passageway. The ports extend from the housing and are configured for connection to medical devices. The valve assembly is operable to interchangeably align the passageway and the recesses with the ports. Finally, the cap is connected to the housing, and forms an opening for coupling to a specimen container.
대표청구항▼
1. A fluid flow control apparatus used in medical fluid sampling, comprising: a valve assembly comprising a housing and a body, the housing having a cavity between a top surface and a first opening of the housing, the body having a top portion and a bottom portion, the body rotatably retained within
1. A fluid flow control apparatus used in medical fluid sampling, comprising: a valve assembly comprising a housing and a body, the housing having a cavity between a top surface and a first opening of the housing, the body having a top portion and a bottom portion, the body rotatably retained within the cavity such that the bottom portion terminates above the housing first opening and the top portion extends above the housing top surface, the body comprising a passageway through a horizontal axis of the body and defining at least two diametrically opposed circumferential recesses along respective vertical axes of the body parallel to the axis of rotation, the at least two diametrically opposed circumferential recesses defined by an interior circumferential surface of the housing and respective recessed portions of an exterior surface of the body, that are fluidly isolated from the passageway;the housing having (i) a first port and a second port, each port extending from the housing and configured for connection to medical devices, and (ii) a ridge on the top surface of the housing comprising first and second protrusions, the first protrusion being engaged by a stem portion in a first flow position, and the body being rotatable such that the stem portion engages a second protrusion in a second flow position; anda cap integrally connected to the first opening of the housing, the cap forming a chamber for coupling to a specimen container, the chamber having cross-sectional width that is greater than the cross-sectional width of the first opening,wherein the chamber of the cap is configured to be fluidly connected to the first and second ports through the at least two diametrically opposed circumferential recesses when two of the at least two diametrically opposed circumferential recesses are aligned with the first and second ports,wherein the valve assembly is operable to interchangeably align the passageway and two of the at least two diametrically opposed circumferential recesses with the first and second ports. 2. The fluid flow control apparatus of claim 1, wherein the valve assembly comprises a stopcock valve. 3. The fluid flow control apparatus of claim 1, wherein the first port is a female fitting and the second port is a male fitting. 4. The fluid flow control apparatus of claim 1, wherein the first port and second port are luer fittings. 5. The fluid flow control apparatus of claim 1, wherein the valve assembly is configured to provide at least two flow positions. 6. The fluid flow control apparatus of claim 5, wherein the protrusion corresponds to each of the at least two flow positions of the valve assembly. 7. The fluid flow control apparatus of claim 5, wherein a first flow position of the valve assembly includes the passageway fluidly connecting the first and second ports. 8. The fluid flow control apparatus of claim 5, wherein a second flow position of the valve assembly defines a direction of fluid flow from the first port, through one of the at least two diametrically opposed circumferential recesses, into the cap, through an opposite of the at least two diametrically opposed circumferential recesses and the second port. 9. A fluid sampling apparatus for use in medical fluid sampling comprising: a first port;a second port;a valve assembly including four flow positions, comprising a body and a housing, the housing having a cavity between a top surface and a first opening of the housing, the body having a top portion and a bottom portion, the body rotatably retained within the cavity such that the bottom portion terminates above the housing first opening and the top portion extends above the housing top surface, the body comprising a passageway and at least two diametrically opposed circumferential recesses defined by an interior circumferential surface of the housing and respective recessed portions of an exterior surface of the body, the at least two diametrically opposed circumferential recesses being fluidly isolated from the passageway;a cap integrally connected to the first opening of the housing, the cap forming a chamber fluidly connected to the first and second ports through the at least two diametrically opposed circumferential recesses, the chamber having a cross-sectional width that is greater than the cross-sectional width of the first opening; anda fluid sampling container removably connected to the cap. 10. The fluid sampling apparatus of claim 9, wherein an instillation position of the valve assembly fluidly connects the first port to the second port. 11. The fluid sampling apparatus of claim 9, wherein the at least two diametrically opposed circumferential recesses are formed by an intersection of the body with the housing of the valve assembly, and further wherein an aspiration position of the valve assembly fluidly connects the first port and the second port to the fluid sampling container via the at least two diametrically opposed circumferential recesses. 12. The fluid sampling apparatus of claim 9, wherein the cap forms a threaded interior for removable connection to the fluid sampling container. 13. The fluid sampling apparatus of claim 9, wherein the valve assembly includes a handle coupled to the top portion of the body, the handle having a flow indicating end. 14. The fluid sampling apparatus of claim 9, further including position indicators corresponding to the four flow positions of the valve assembly. 15. A method of obtaining a fluid sample from a patient, comprising: inserting an artificial airway into a patient;connecting the artificial airway to a first port of a fluid sampling apparatus; the fluid sampling apparatus comprising:a valve assembly comprising a housing and a body, the housing having a cavity between a top surface and a first opening of the housing, the body having a top portion and a bottom portion, the body rotatably retained within the cavity such that the bottom portion terminates above the housing first opening and the top portion extending above the housing top surface, the body comprising a passageway through a horizontal axis of the body and defining at least two diametrically opposed circumferential recesses along respective vertical axes of the body parallel to the axis of rotation, the at least two diametrically opposed circumferential recesses defined by an interior circumferential surface of the housing and respective recessed portions of an exterior surface of the body, that are fluidly isolated from the passageway;the housing having (i) the first port and a second port, each port extending from the housing and configured for connection to medical devices, and (ii) a ridge on the to surface of the housing comprising first and second protrusions, the first protrusion being engaged by a stem portion in a first flow position, and the body being rotatable such that the stem portion engages a second protrusion in a second flow position; anda cap integrally connected to the first opening of the housing, the cap forming a chamber for coupling a specimen container, the chamber having a cross-sectional width that is greater than the cross-sectional width of the first opening,wherein the chamber of the cap is configured to be fluidly connected to the first and second ports through the at least two diametrically opposed circumferential recesses when two of the at least two diametrically opposed circumferential recesses are aligned with the first and second ports,wherein the valve assembly is operable to interchangeably align the passageway and two of the at least two diametrically opposed circumferential recesses with the first and second ports;orienting the valve assembly of the fluid sampling apparatus to provide a flow passageway from the first port to the passageway of the valve assembly to the second port;instilling a fluid into the fluid sampling apparatus to the patient;redirecting the valve assembly and the flow passageway through the specimen container; andaspirating a fluid sample from the patient by providing a negative pressure at the second port. 16. The method of claim 15, further comprising redirecting the valve assembly to seal the passageway and maintain internal pressure.
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이 특허에 인용된 특허 (24)
Sinnett Kevin B. (W273 S8555 Hill View Dr. Mukwonago WI 53149), Apparatus for preparing and administering a dose of a fluid mixture for injection into body tissue.
Danielson Bo (Uppsala SEX) Magnusson Tore (Knivsta SEX) Orban Laszlo (Enkping SEX) Petersson Torgny (sterbybruk SEX), Device for the connection of fluid conduits for medical purposes.
Doblar Dennis D. (11520 Grandview Ave. Silver Spring MD 20902) Hinkle John C. (808 Misty Glen La. Dallas TX 75232), Rotary valve especially useful in a medical system including a flow-directed venous catheter.
Olson Donald J. (605 Briarwood La. San Dimas CA 91773) McGrail Judith A. (25560 River Bend Dr. #D Yorba Linda CA 92686), Sampler coupler device useful in the medical arts.
Stacey Gary R. (Randolph MA) Verkaart Wesley H. (Duxbury MA) Headley Thomas D. (Wellesley MA) Powers Edward T. (Medfield MA), Suction collection device.
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