Rotary pump with hydrodynamically suspended impeller
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04D-007/00
출원번호
US-0734532
(2000-12-11)
우선권정보
AU-199709027 (1997-05-09)
발명자
/ 주소
Woodard, John Campbell
Watterson, Peter Andrew
Tansley, Geoffrey Douglas
출원인 / 주소
Ventrassist Pty Ltd, University of Technology Sydney
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
97인용 특허 :
25
초록▼
This invention relates to rotary pumps adapted, but not exclusively, for use as artificial hearts or ventricular assist devices and, in particular, discloses in preferred forms a seal-less shaft-less pump featuring open or closed (shrouded) impeller blades with the edges of the blades used as hydrod
This invention relates to rotary pumps adapted, but not exclusively, for use as artificial hearts or ventricular assist devices and, in particular, discloses in preferred forms a seal-less shaft-less pump featuring open or closed (shrouded) impeller blades with the edges of the blades used as hydrodynamic thrust bearings and with electromagnetic torque provided by the interaction between magnets embedded in the blades and a rotating current pattern generated in coils fixed relative to the pump housing.
대표청구항▼
This invention relates to rotary pumps adapted, but not exclusively, for use as artificial hearts or ventricular assist devices and, in particular, discloses in preferred forms a seal-less shaft-less pump featuring open or closed (shrouded) impeller blades with the edges of the blades used as hydrod
This invention relates to rotary pumps adapted, but not exclusively, for use as artificial hearts or ventricular assist devices and, in particular, discloses in preferred forms a seal-less shaft-less pump featuring open or closed (shrouded) impeller blades with the edges of the blades used as hydrodynamic thrust bearings and with electromagnetic torque provided by the interaction between magnets embedded in the blades and a rotating current pattern generated in coils fixed relative to the pump housing. a bottom tapered to a point at the cavity center wherein the cavity having a depth of approximately 0.090 inch to 0.100 inch to the cavity center; the cylindrical wall having a wall height of approximately 0.060 inch to 0.070 inch; and the cavities disposed in the piston head to maximize the number of cavities such that no cavity edge is closer than approximately 1/4 inch to 1/2 inch to any adjacent cavity edge and to the perimeter of the piston head. 14. A piston for use in an internal combustion engine comprising: a piston having a plurality of cavities formed therein in a piston head; each cavity having a diameter of between approximately 1/8 inch and 1/4 inch and a depth to a cavity center of approximately 45 percent to 65 percent of the cavity diameter; and the cavities disposed in the piston head to occupy approximately 10 percent to 25 percent of the piston head surface area. position adjacent to said electric device; wherein an electrode terminal of said electric device is disposed at a location which confronts an end face of said component in a direction in which said cylinders are arranged, wherein said engine auxiliary parts are disposed on one side of the engine main body and apart from said engine main body, and said engine auxiliary parts are driven by an endless belt for commonly driving he other auxiliary parts, and wherein a hook-shaped temporary locking member is provided at a location where at least the upper portion of said engine auxiliary parts is fixed to said engine main body. iators and synergists comprise up to approximately 10% by weight of said oligomers and monomers. 20. The printing blank of claim 2 wherein said binder resins are present as approximately 10% to 50% of the dry weight of said UV curing layer. 21. The printing blank of claim 2 wherein said binder resins include at least one of novalak, styrene maleic anhydride copolymers, polyvinyl methyl ether maleic anhydride copolymer and its esters, hydroxy propyl cellulose and esterified rosin-maleic esters. 22. The printing blank of claim 2 wherein said UV curing layer is comprised of at least one of dyes and pigments which are added to aid visual examination of the layer. 23. The printing blank of claim 2 wherein said UV curing layer comprises wetting agents. 24. The printing blank of claim 2 wherein said UV curing layer comprises fillers. 25. The printing blank of claim 2 wherein said UV curing layer is non-aqueous solvent based. 26. The printing blank of claim 2 wherein said UV curing layer is between approximately 5 and 50 microns in thickness. 27. The printing blank of claim 2 wherein said IR sensitive, UV opaque layer comprises carbon black. 28. The printing blank of claim 2 wherein said IR sensitive, UV opaque layer comprises surface active agents. 29. The printing blank of claim 2 wherein said IR sensitive, UV opaque layer comprises at least one of dyes and pigments to enhance performance as a mask. 30. The printing blank of claim 2 wherein said IR sensitive, opaque layer is between approximately 0.3 and 3 microns in thickness. 31. The printing blank of claim 2 wherein said printing blank is provided as a first and a second portion, said first portion comprising said UV curing layer provided on said substrate, said second portion comprising a support film on which said IR absorbing, UV opaque layer is provided. 32. The printing blank of claim 31 wherein said first portion and said second portion form a printing blank for use in a gravure printing process. 33. The printing blank of claim 32 wherein said first portion is placed on said second portion so that said IR absorbing layer of said second portion is superior to and in contact with said UV curing layer of said first portion. 34. The printing blank of claim 32 wherein said first portion is placed on said second portion so that said support film of said second portion is superior to and in contact with said UV curing layer of said first portion. 35. The printing blank of claim 31 wherein said support film is transparent. 36. The printing blank of claim 31 wherein said support film comprises at least one of polyester and polypropylene. 37. The printing blank of claim 31 wherein said support film is approximately 50 microns in thickness. 38. A method for preparing a gravure printing blank usable in a gravure printing process, said method comprising the steps of: providing an image-ready printing blank comprising: a substrate; a UV curing layer comprised of binder resins that are soluble in water, dilute alkali and non-aqueous solvent; and an IR absorbing, UV opaque layer, said IR absorbing, UV opaque layer being deposited from water and interacting with said UV curing layer to provide rub-resistance; digitally imaging said printing blank with a digital laser imaging system using an IR laser, such that the IR irradiation causes selective ablation of areas of said IR absorbing layer, forming an image structure having exposed and unexposed areas of said UV curing layer; flood-curing said printing blank with UV radiation to cure said exposed areas of said UV curing layer in said image structure; and washing said printing blank so that remaining IR absorbing layer areas and said unexposed image structure areas are removed, such that the remaining UV cured image structure areas of the UV curing layer form cells for holding printing ink for use in the gravure printing process. 39. The method of claim 38 further comprising the step of baking said printing blank at appro
Vescovini Pietro (Medolla ITX) Ghelli Nicola (Casale ITX) Panzani Ivo (Mirandola ITX), Centrifugal pump for liquids, in particular for blood in extracorporeal circulation.
Olsen Don B. (8832 Blue Jay La. Salt Lake City UT 84121) Bramm Gnter (Luisen Str. 49 8000 Munich 2 DEX) Novak Pavel (Grres Str. 2 D-8000-Munich 40 DEX), Magnetically suspended and rotated impellor pump apparatus and method.
Bramm Gunter W. (Luisen Strasse 49 8000 Munchen 2 UT DEX) Olsen Don B. (8832 Blue Jay La. Salt Lake City UT 84121), Magnetically suspended and rotated rotor.
Campbell, Robert L.; Walsh, Justin M.; Metrey, Daniel; Kunz, Robert F.; Mallison, Thomas M.; Boone, Edward; Myer, Eric; McBride, Mark W.; Powell, Kevin J.; Walters, Daniel A., Blood pump with expandable cannula.
Campbell, Robert L.; Walsh, Justin M.; Metrey, Daniel; Kunz, Robert F.; Mallison, Thomas M.; Boone, Edward; Myer, Eric; McBride, Mark W.; Powell, Kevin J.; Walters, Daniel A., Blood pump with expandable cannula.
Walters, Daniel A.; Repka, William James; Powell, Kevin J.; Keenan, Richard L.; Walsh, Justin M.; Campbell, Robert L.; McBride, Mark W., Catheter pump.
Luongo, Joseph A.; Angelosanto, John; Rubino, Frank; Pensak, Jr., Stanley P.; First, David J.; Pugnaire, Jean-Pierre; Venable, Richard R., Device and methods of measuring pressure.
McBride, Mark W.; Mallison, Thomas M.; Dillon, Gregory P.; Campbell, Robert L.; Boger, David A.; Hambric, Stephen A.; Kunz, Robert F.; Runt, James P.; Walsh, Justin M.; Leschinsky, Boris, Expandable impeller pump.
McBride, Mark W.; Mallison, Thomas M.; Dillon, Gregory P.; Campbell, Robert L.; Boger, David A.; Hambric, Stephen A.; Kunz, Robert F.; Runt, James P.; Walsh, Justin M.; Leschinsky, Boris, Expandable impeller pump.
McBride, Mark W.; Mallison, Thomas M.; Dillon, Gregory P.; Campbell, Robert L.; Boger, David A.; Hambric, Stephen A.; Kunz, Robert F.; Runt, James P.; Walsh, Justin M.; Leschinsky, Boris, Expandable impeller pump.
Schenck, Alan; Green, Michael L.; Fitzgerald, Keif M.; Muller, Paul F.; Sullivan, Joseph P.; Schubert, Keith; Bristol, Peter W.; Mills, Jeffrey Paul; Leonard, Paul C.; Keenan, Richard L., Fluid handling system.
McBride, Mark W.; Boger, David A.; Campbell, Robert L.; Dillon, Gregory P.; Hambric, Stephen A.; Kunz, Robert F.; Leschinsky, Boris; Mallison, Thomas M.; Runt, James P.; Walsh, Justin M., Heart assist device with expandable impeller pump.
McBride, Mark W.; Boger, David A.; Campbell, Robert L.; Dillon, Gregory P.; Hambric, Stephen A.; Kunz, Robert F.; Leschinsky, Boris; Mallison, Thomas M.; Runt, James P.; Walsh, Justin M., Heart assist device with expandable impeller pump.
McBride, Mark W.; Boger, David A.; Campbell, Robert L.; Dillon, Gregory P.; Hambric, Stephen A.; Kunz, Robert F.; Leschinsky, Boris; Mallison, Thomas M.; Runt, James P.; Walsh, Justin M., Heart assist device with expandable impeller pump.
McBride, Mark W.; Boger, David A.; Campbell, Robert L.; Dillon, Gregory P.; Hambric, Stephen A.; Kunz, Robert F.; Leschinsky, Boris; Mallison, Thomas M.; Runt, James P.; Walsh, Justin M., Heart assist device with expandable impeller pump.
McBride, Mark W.; Boger, David A.; Campbell, Robert L.; Dillon, Gregory P.; Hambric, Stephen A.; Kunz, Robert F.; Leschinsky, Boris; Mallison, Thomas M.; Runt, James P.; Walsh, Justin M., Heart assist device with expandable impeller pump.
Campbell, Robert L.; Fitzgerald, Keif; Harrison, William James; Leschinsky, Boris; Mallison, Thomas M.; McBride, Mark W.; Roslund, Adam; Walters, Daniel A.; Yuen, Phyllis, Impeller housing for percutaneous heart pump.
Bolling, Steven F.; Gharib, Morteza; Aldea, Gabriel; Gaddis, Mary Lynn; Viole, Anthony J., Implantable heart assist system and method of applying same.
Campbell, Robert L.; Koncoski, Jeremy J.; Mallison, Thomas M.; McBride, Mark W.; Metrey, Daniel; Myer, Eric C.; Powell, Kevin J.; Roslund, Adam; Walters, Daniel A.; Repka, William James; Yuen, Phyllis, Percutaneous heart pump.
Campbell, Robert L.; Koncoski, Jeremy J.; Mallison, Thomas M.; McBride, Mark W.; Metrey, Daniel; Myer, Eric C.; Powell, Kevin J.; Roslund, Adam; Walters, Daniel A.; Repka, William James; Yuen, Phyllis, Percutaneous heart pump.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.