WO2002048589A1 - Valve assembly for medical manifold - Google Patents
Valve assembly for medical manifold Download PDFInfo
- Publication number
- WO2002048589A1 WO2002048589A1 PCT/US2001/048153 US0148153W WO0248589A1 WO 2002048589 A1 WO2002048589 A1 WO 2002048589A1 US 0148153 W US0148153 W US 0148153W WO 0248589 A1 WO0248589 A1 WO 0248589A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve stem
- bore
- openings
- pathway
- diameter
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0414—Plug channel at 90 degrees to the inlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0478—Packings on the plug
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C2045/14459—Coating a portion of the article, e.g. the edge of the article injecting seal elements
Definitions
- the present invention relates to medical manifolds. More particularly, the present invention relates to an improved valve assembly for use in medical manifolds. Background Art
- a medical manifold is typically an elongated member having one or more channels extending therethrough.
- the proximal end of the manifold typically has a coupling member for attachment to a peripheral device, such as a fluid source, wherein a manifold channel is in communication with the peripheral device through the proximal coupling member.
- the distal end of the manifold typically has another coupling member for attachment to a second peripheral device, such as a catheter, wherein a manifold channel is in communication with the second peripheral device through the distal coupling member.
- the manifold may have additional coupling members for attachment of various other devices.
- the term "manifold” encompasses single and multiple port manifolds and stopcocks.
- Each valve assembly typically comprises a cylindrical bore in the manifold that is in communication with at least two channels.
- a cylindrical valve stem having a diameter that is slightly larger than the diameter of the bore is press fit into the bore, which forms a tight seal between the valve stem wall and the bore wall to prevent fluid from leaking from the manifold channels into the bore around the valve stem.
- the valve stem includes at least one pathway therethrough and a handle is typically formed on one end of the valve stem to allow an operator to orient the valve stem as desired. The valve stem must be rotated so that the pathway through the valve stem is aligned with the manifold channels to allow fluid to flow through the valve stem.
- Low-pressure manifolds are used, for example, in manual syringe procedures.
- High-pressure manifolds are used in procedures requiring mechanical pressurization. Because fluids in a high-pressure manifold are under greater pressure, the valve stem wall must be tightly pressed against the bore wall to prevent fluid leakage from the manifold channels into the bore around the valve stem. As a result, valve stems in prior art high-pressure manifolds are very difficult to rotate due to the greater friction between the valve stem wall and the bore wall.
- the present invention is an improved valve member for use in a medical manifold valve assembly, wherein the valve member comprises a valve stem having a handle formed thereon for rotating the valve stem within the bore of a manifold.
- the handle preferably comprises a soft, flexible material for ergonomic comfort.
- the valve stem has at least one pathway therethrough that can be aligned with channels through the manifold to allow fluid to flow through the valve stem pathway.
- the valve stem comprises at least two grooves circumscribing the valve stem, one groove above and one groove below each pathway opening. These grooves are preferably fitted or molded with a flexible material to form seals.
- the diameter of the valve stem above and below the area between the grooves is less than the diameter of the valve stem between the grooves such that the valve stem wall above and below the area between the grooves does not contact the bore wall.
- the frictional area between the valve stem wall and the bore wall is thereby reduced, making rotation of the valve stem much easier for the operator while still providing an adequate seal to prevent fluid leakage from the manifold channels into the bore around the valve stem.
- the valve member preferably further comprises a detent feature to assist the operator in determining proper valve stem orientation, which is particularly helpful in low-light conditions.
- FIG. 1 is an elevational view of a prior art valve stem and handle.
- FIG. 2 is a partial sectional view of a prior art valve assembly illustrating the prior art valve stem of FIG. 1 within a medical manifold.
- FIG. 3 is an elevational view of the valve stem and handle of the present invention.
- FIG.4 is a partial sectional view of a valve assembly illustrating the valve stem of FIG. 3 within a medical manifold.
- FIG. 5 is an enlarged sectional view of the valve stem of FIG. 4.
- FIG. 6 is a perspective view of an alternate embodiment of the present invention.
- FIG. 7 is an exploded perspective view of the embodiment of FIG. 6.
- FIG. 8 is an enlarged sectional view of another alternate embodiment of the present invention.
- FIGS. 1 and 2 a prior art valve stem is illustrated in FIGS. 1 and 2, wherein the valve stem 11 has a handle 12 at one end for rotating the valve stem within a cylindrical bore 13 of a medical manifold 14.
- the lower end of the valve stem 11 includes an annular flange 16 that slides over and engages an annular flange 17 in the manifold 14 to secure the valve stem within the manifold.
- the valve stem 11 includes a 3 -way pathway 18 therethrough that can be aligned with channels 19 within the manifold 14 so that fluid (i.e. gas or liquid) can flow through the valve stem.
- the outer diameter of the valve stem 11 is slightly larger than the diameter of the bore 13 along the entire length thereof such that the valve stem wall and bore wall are frictionally engaged along the entire length of their respective surfaces. As a result, the valve stem is very difficult to rotate.
- the present invention is a valve member 20 for use in a medical manifold valve assembly, wherein the valve member 20 comprises a valve stem 21 having a handle 22 formed thereon for rotating the valve stem within the bore 23 of a manifold 24.
- the lower end of the valve stem 21 preferably includes an annular flange 26 that slides over and engages an annular flange 27 in the manifold 24 to secure the valve stem within the manifold.
- the valve stem 21 has at least one pathway 28 therethrough than can be aligned with channels 29 through the manifold 24 to allow fluid to flow through the valve stem pathway.
- the valve stem 21 comprises at least two grooves 31 circumscribing the valve stem, at least one groove above and one groove below each pathway opening. These grooves 31 are fitted with flexible seals 32. Alternatively, grooves 31 and seals 32 can be substituted with annular ridges formed either on the valve stem or on corresponding positions within the manifold bore.
- the diameter of the valve stem 21 above and below the area between the seals 32 (designated by 33) is preferably less than the diameter of the valve stem between the seals (designated by 34) such that diameter 33 does not contact the wall of the bore 23.
- the frictional area between the wall of the valve stem 21 and the wall of the bore 23 is thereby reduced, making rotation of the valve stem much easier for the operator while still providing an adequate seal to prevent fluid leakage from the manifold channels 29 into the bore 23 around the valve stem 21.
- the valve stem 21 comprises at least two "horizontal" grooves 31 circumscribing the valve stem, at least one groove above and one groove below each pathway opening.
- the valve stem 21 further comprises at least two "vertical” grooves 36 intersecting the horizontal grooves, at least one vertical groove 36 on each side of each pathway opening.
- These grooves 31, 36 are fitted with a multiple seal member 37 having horizontal and vertical components.
- grooves 31, 36 and multiple seal member 37 can be substituted with ridges formed either on the valve stem or on corresponding positions within the manifold bore.
- the handle 22 is preferably formed by two mating sections: a rigid member 38 preferably molded to the valve stem 21; and a soft, flexible member 39 for ergonomic comfort.
- the valve member 20 includes one or more detents to assist the operator in determining proper valve stem 21 orientation, which is particularly helpful in low-light conditions.
- Each detent is preferably a convex member 41 formed along the top surface of the manifold 24.
- the underside of the handle 22 preferably includes one or more concave formations 42 such that as the valve stem 21 is rotated, the underside of the handle 22 slides over the detent 41 until a concave formation 42 engages the detent, thereby indicating that the valve stem is in a proper predetermined alignment. While the detent feature has been described in one form, it should be understood that the detent feature could take numerous forms.
- the valve assembly of the present invention can withstand the increased pressure associated with pressurized procedures utilizing high-pressure manifolds, yet the valve member 20 only requires a relatively small amount of torque to rotate the valve stem 21.
- High-pressure manifolds currently available must maintain 500 static psi, at which the torque required to rotate the valve stem is near or above 28 ounces/inch (oz/in), which is difficult to accomplish with a single hand.
- Tests of the present invention indicate that the torque required to rotate the valve stem is relatively low in a high-pressure rated system. Accordingly, the present invention finds application in both low-pressure and high-pressure manifolds.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002232566A AU2002232566A1 (en) | 2000-12-12 | 2001-12-12 | Valve assembly for medical manifold |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25500900P | 2000-12-12 | 2000-12-12 | |
US60/255,009 | 2000-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002048589A1 true WO2002048589A1 (en) | 2002-06-20 |
Family
ID=22966455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/048153 WO2002048589A1 (en) | 2000-12-12 | 2001-12-12 | Valve assembly for medical manifold |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020084437A1 (en) |
AU (1) | AU2002232566A1 (en) |
WO (1) | WO2002048589A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003006859A1 (en) * | 2001-07-11 | 2003-01-23 | Valeo Thermique Moteur | Improved sealed control valve and production method thereof |
WO2005009870A1 (en) * | 2003-07-07 | 2005-02-03 | 3M Innovative Properties Company | Multi-component valve stems |
CN103998075A (en) * | 2011-09-21 | 2014-08-20 | 拜耳医疗保健公司 | Continuous multi-fluid pump device, drive and actuating system and method |
EP3059478A1 (en) * | 2015-02-18 | 2016-08-24 | HYDAC Accessories GmbH | Device for displaying and/or controlling fluids |
CN107207237A (en) * | 2015-01-21 | 2017-09-26 | 安海斯-布希英博股份有限公司 | plug valve for beverage dispenser |
US10507319B2 (en) | 2015-01-09 | 2019-12-17 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007033319A1 (en) * | 2005-09-13 | 2007-03-22 | Edwards Lifesciences Corporation | Closed blood sampling system with isolated pressure monitoring |
US7963951B2 (en) * | 2007-02-09 | 2011-06-21 | Tyco Healthcare Group Lp | Medical valve device |
DE102016104320A1 (en) * | 2016-03-09 | 2017-09-14 | Tece Gmbh | Kunststoffeckventil |
US10471460B2 (en) | 2017-03-21 | 2019-11-12 | The Boeing Company | Dispensing units for controlling substance flow and related methods |
US10343182B2 (en) * | 2017-03-21 | 2019-07-09 | The Boeing Company | Dispensing units for controlling substance flow and related methods |
DE102019124638A1 (en) * | 2019-09-12 | 2021-03-18 | Olympus Winter & Ibe Gmbh | Stopcock with steam openings |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4328833A (en) * | 1980-09-29 | 1982-05-11 | Purex Corporation | Multi-ported valve with sealing network between valve body and rotor |
US5832959A (en) * | 1995-10-16 | 1998-11-10 | Becton Dickinson Infusion Therapy Ab | Stopcocks |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2547116A (en) * | 1946-01-22 | 1951-04-03 | Mueller Co | Valve |
US4207923A (en) * | 1978-08-29 | 1980-06-17 | Cobe Laboratories, Inc. | Fluid valve |
US4494730A (en) * | 1982-11-01 | 1985-01-22 | Xomox Corporation | Plug valve with improved plastic sleeve |
US4844413A (en) * | 1984-08-20 | 1989-07-04 | The Babcock & Wilcox Company | Shut-off/equalizing valve with molded seals |
US4628962A (en) * | 1986-01-06 | 1986-12-16 | United States Brass Corporation | Tub-shower diverter valve |
US4807666A (en) * | 1987-08-26 | 1989-02-28 | North American Instruments Corp. | Stopcock valve for high pressure applications |
US4958802A (en) * | 1988-04-07 | 1990-09-25 | United States Brass Corporation | Stop valve |
WO1992019853A1 (en) * | 1991-05-08 | 1992-11-12 | Nippondenso Co., Ltd. | Suction control device for internal combustion engine |
-
2001
- 2001-12-12 WO PCT/US2001/048153 patent/WO2002048589A1/en not_active Application Discontinuation
- 2001-12-12 AU AU2002232566A patent/AU2002232566A1/en not_active Abandoned
- 2001-12-12 US US10/020,400 patent/US20020084437A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4328833A (en) * | 1980-09-29 | 1982-05-11 | Purex Corporation | Multi-ported valve with sealing network between valve body and rotor |
US5832959A (en) * | 1995-10-16 | 1998-11-10 | Becton Dickinson Infusion Therapy Ab | Stopcocks |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003006859A1 (en) * | 2001-07-11 | 2003-01-23 | Valeo Thermique Moteur | Improved sealed control valve and production method thereof |
WO2005009870A1 (en) * | 2003-07-07 | 2005-02-03 | 3M Innovative Properties Company | Multi-component valve stems |
CN103998075A (en) * | 2011-09-21 | 2014-08-20 | 拜耳医疗保健公司 | Continuous multi-fluid pump device, drive and actuating system and method |
EP2758097A4 (en) * | 2011-09-21 | 2015-07-01 | Bayer Medical Care Inc | Continuous multi-fluid pump device, drive and actuating system and method |
US9649436B2 (en) | 2011-09-21 | 2017-05-16 | Bayer Healthcare Llc | Assembly method for a fluid pump device for a continuous multi-fluid delivery system |
US9700672B2 (en) | 2011-09-21 | 2017-07-11 | Bayer Healthcare Llc | Continuous multi-fluid pump device, drive and actuating system and method |
US10507319B2 (en) | 2015-01-09 | 2019-12-17 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
US11491318B2 (en) | 2015-01-09 | 2022-11-08 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
CN107207237A (en) * | 2015-01-21 | 2017-09-26 | 安海斯-布希英博股份有限公司 | plug valve for beverage dispenser |
CN107207237B (en) * | 2015-01-21 | 2020-02-11 | 安海斯-布希英博股份有限公司 | Plug valve for beverage dispenser |
EP3059478A1 (en) * | 2015-02-18 | 2016-08-24 | HYDAC Accessories GmbH | Device for displaying and/or controlling fluids |
EP3336397A1 (en) * | 2015-02-18 | 2018-06-20 | HYDAC Accessories GmbH | Device for displaying and/or controlling fluids |
Also Published As
Publication number | Publication date |
---|---|
US20020084437A1 (en) | 2002-07-04 |
AU2002232566A1 (en) | 2002-06-24 |
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