[특허]Blood filter

[미국특허] Blood filter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-019/00 B01D-035/30
출원번호	US-0278001 (1988-11-30)
우선권정보	JP-0307032 (1987-12-04)
발명자 / 주소	Katsura Yoshiro (Fuji JPX)
출원인 / 주소	Terumo Kabushiki Kaisha (Tokyo JPX 03)
인용정보	피인용 횟수 : 53 인용 특허 : 4

초록 ▼

A blood filter having a bubble separating section includes a generally cylindrical chamber for allowing bubbles to separate from blood, an air discharging vent at an upper end of the chamber, and an inlet conduit horizontally extending from the chamber for introducing blood into the chamber. A blood filter section is disposed below the bubble separating section, including an outlet at a lower end for discharging blood and a filter member disposed between the inlet and the outlet. The axis of the inlet conduit extends substantially parallel to a tangent line of the generally circular chamber at the connection between the chamber and the inlet conduit, but is spaced a certain distance from the tangent line in a plane perpendicular to the axis of the chamber. An inflow portion is disposed between the inlet conduit and the chamber so as to define a flowpath merging the inlet conduit to the chamber, whereby the inflow portion directs incoming blood from the inlet conduit so as to flow as a substantial laminar flow to a swirl flow of blood in the chamber and then merge with the swirl flow. The apparatus has high bubble removal capacity in that few bubbles are conveyed to the filter member since newly introduced blood does not disturb the existing swirl flow of blood in the chamber.

대표청구항 ▼

A blood filter, comprising: a filter housing; said housing forming a bubble separating section including a chamber defined by said housing and having a generally circular cross section for allowing bubbles to separate from blood when introduced into said chamber, a vent formed at upper end of the housing to communicate with the chamber for discharging air from said bubbles, an inlet conduit horizontally extending from the housing for introducing blood into the chamber, the axis of said inlet conduit extending substantially parallel to a tangent line of the generally circular chamber in the vicinity of the connection between the chamber and the inlet conduit, the inlet conduit axis being outside said chamber and being offset a certain distance from said tangent line in a plane perpendicular to the axis of said chamber, and said housing defining an inflow portion merging the inlet conduit to the chamber, and said housing forming a blood filter section disposed below said bubble separating section, including an outlet disposed at a lower end of the housing for discharging blood, and a filter member disposed in said housing between the inlet conduit and the outlet, wherein said inflow portion is contoured so that said inflow portion introduced incoming blood from the inlet conduit to flow as a substantial laminar flow up to an existing swirl blood flow in the chamber, and to merge with the swirl blood flow without substantial disturbance of the swirl blood flow.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Katsura Yoshiro (Narashino JPX), Apparatus for removing bubbles from a liquid.
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Gordon Lucas S. (San Juan Capistrano CA) Sutherland Karl M. (Westminster CA), Blood filter.
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Wilkinson William R. (Mission City TX) Sharp Russell G. (Sugar Land TX) Reed Charles C. (Houston TX) Cooley Denton A. (Houston TX) Crane Terry N. (Houston TX), Degasser for biological fluids.
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Iding Stephen H. (Cincinnati OH) Neel Richard M. (Cincinnati OH), Viscous phase stable liquid scouring cleansers containing solvent.
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이 특허를 인용한 특허 (53) 인용/피인용 타임라인 분석

Kenley Rodney S. (Libertyville IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Feldsein Thomas M. (Palatine IL) Pawlak Kenneth E. (Vernon Hills IL), Apparatus for supplying a batch of chemicals to a dialysate tank.
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Denise R. Flamer, Arterial blood filter.
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Huang, Trevor C.; McLevish, Alford L.; Kalscheuer, Joseph L.; Briscoe, Roderick E., Arterial blood filter.
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White George W. (Lake Forest CA) Galt Kenneth (Seal Beach CA) Chaikumnerd Tichakorn (Huntington Beach CA) Brown Jack W. (Santa Ana CA), Arterial blood filter with upwardly inclining delivery inlet conduit.
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Eason,Stephen William; Edgson,Raymond Anthony; Harmer,Quentin John; Clarke,Roger William, Assymetric inhaler.
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Kenley Rodney S. (Libertyville IL) Matthews Dawn (Grayslake IL) Wilkerson Douglas L. (Gurnee IL) Treu Dennis M. (Gurnee IL) Walker Donald C. (Mundelein IL), Batch dialysate chemical vessel with machine-readable indicator.
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Gupta Brij M., Blood filter.
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Stringer, Steven K.; Hultquist, Kevin L.; Farhangnia, Mehrdad; Linker, Fred I.; Brian, III, Ben F., Blood filter having a sensor for active gas removal and methods of use.
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Haworth William S. (White Bear Lake MN) Olsen Robert W. (Plymouth MN) Thor Eric J. (Arden Hills MN), Blood filter with concentric pleats and method of use.
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Uchi, Yukihiko; Sukegawa, Takeshi, Body fluid treating filter device.
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Schnell William J., Bubble trap chamber.
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Robert Christian Gustafson ; Vernon C. Maine, Bubble trap for blood.
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Meada, Hiroyuki; Kawarabata, Shigeki, Closed-type blood reservoir and extracorporeal blood circulation apparatus using the same.
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Pawlak Kenneth E. (Vernon Hills IL) Wroblewski Steven J. (Darien IL), Debubblers.
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Beck, Christof, Degassing device.
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Dannenmaier, Jürgen; Goehl, Hermann; Ertl, Thomas; Chevallet, Jacques; Ribolzi, Francesco, Degassing device and end-cap assembly for a filter including such a degassing device.
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Wojke Ralf,DEX, Device for separating gas bubbles from fluids, in particular blood.
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Kenley Rodney S. (Libertyville IL) Matthews Dawn (Grayslake IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Feldsein Thomas M. (Palatine IL) Minns H. Gordon (Jackson WY), Dialysate separation method.
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Matthews Dawn (Grayslake IL) Treu Dennis M. (Gurnee IL), Dialysis machine with leakage detection.
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Field George Raymond,CAX, Distributor device for water conditioner backflush apparatus.
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Litzie,A. Kenneth; Stringer,Steven K.; Farhangnia,Mehrdad; Tyebjee,Muslim; Afzal,Thomas A.; Brian, III,Ben F., Extracorporeal blood handling system with automatic flow control and methods of use.
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Kenley Rodney S. (Libertyville IL) Matthews Dawn (Grayslake IL) Wilkerson Douglas L. (Gurnee IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Brose Tom L. (Gurnee IL) Feldsein , Filter integrity test method for dialysis machines.
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Oliver Dana A., Filter system for removal of gas and particulates from cellular fluids.
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Mitamura Makoto (Shizuoka-ken JPX) Nakayama Hidetaka (Shizuoka-ken JPX), Filtering apparatus with a pleated filtering element embedded in a filling material.
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Hubbard,Lloyd; Clausen,Earl, Gas removal from a centrifugal pump.
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Watkins, Randolph H.; Slepicka, James S.; Prisco, Michael R., Hemodialyzer having improved dialysate perfusion.
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Kenley Rodney S. (Libertyville IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Feldsein Thomas M. (Palatine IL) Pawlak Kenneth E. (Vernon Hills IL) Adolf Wayne F. (Mt. Prospec, Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof.
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Stringer, Steven K.; Hultquist, Kevin L.; Farhangnia, Mehrdad; Brian, III, Ben F.; Linker, Fred I.; Culp, James M.; Dueri, Jean-Pierre; Afzal, Thomas A., Integrated blood handling system having active gas removal system and methods of use.
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Stringer, Steven K.; Hultquist, Kevin L.; Farhangnia, Mehrdad; Brian, III, Ben F.; Linker, Fred I.; Culp, James M.; Dueri, Jean-Pierre; Afzal, Thomas A., Integrated blood handling system having active gas removal system and methods of use.
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Linker, Fred I.; Dueri, Jean-Pierre; Edwards, Paul LaRoy; Cambron, Ronald; Brian, III, Ben F., Integrated blood handling system having improved pump.
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Williams, Joseph, Liquid accelerator apparatus.
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Schwartz Marvin P. (Wheeling IL) Bunluaphob Chalard (Glenview IL) Buranatum Prasert (Skokie IL), Means for removing gas from a hydronic system.
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Kelly, Thomas D.; El Sayyid, Waleed M., Medical fluid therapy flow control systems and methods.
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Corey ; Jr. Edmund R. (Schwenksville PA), Method and apparatus for combining cardiotomy and venous blood.
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Wieting,David W.; Lenker,Jay A., Method and apparatus for removal of gas bubbles from blood.
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Kenley Rodney S. ; Matthews Dawn ; Peter ; Jr. Frederick H. ; Bell Eric ; Feldsein Thomas M., Method for determining sodium clearance of dialyzer.
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Hart Stephen (Hants GB2) Pascale Frank R. (Glen Cove NY) Matkovich Vlado I. (Glen Cove NY), Method for processing a biological fluid including leukocyte removal in an extracorporeal circuit.
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Peterson Richard O. ; Olsen Robert W., Method of manufacturing a fluid filter.
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Peter ; Jr. Frederick H. (Barrington IL) Bell Eric (Wheeling IL) Feldsein Thomas M. (Palatine IL), Method of priming dialyzer.
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Kenley Rodney S. (Libertyville IL) Matthews Dawn (Grayslake IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Feldsein Thomas M. (Palatine IL), Method of rinsing back blood to hemodialysis patient.
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Kenley Rodney S. ; Treu Dennis M. ; Brose Tom L. ; Feldsein Thomas M. ; Pawlak Kenneth E., Methods for ultrafiltration control in hemodialysis.
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Stringer, Steven K.; Hultquist, Kevin L.; Farhangnia, Mehrdad; Brian, III, Ben F.; Linker, Fred I.; Culp, James M.; Dueri, Jean Pierre; Afzal, Thomas A., Micro-processor controlled active gas removal apparatus.
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Pondelick, Mark A.; Hardwick, Christopher; Vaughan, Derek; Hoang, Thao; Funk, Michael, Multiple vortex waste separator apparatus.
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Treu Dennis M. (Gurnee IL), Pressure relief valve with sample removal port.
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Kelly, Thomas D.; El Sayyid, Waleed M., Renal therapy blood cleansing system with balance chamber and bolus, rinseback or prime volume feature.
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Kelly, Thomas D.; El Sayyid, Waleed M., Renal therapy blood cleansing system with isolation feature.
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Kelly, Thomas D.; El Sayyid, Waleed M., Renal therapy blood cleansing system with selective valve feature.
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Smit, Karen L.; Wasserman, Mark, Single port manifold.
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Scott, Chris A.; Dunleavy, Matthew John; Bonhomme, Louis, Vacuum filtration device.
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Tamari,Yehuda, Venous reservoir.
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Engelhardt, Ralf; Kueper, Enno-Utz; Haag, Ulrich, Vensous bubble trap.
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Pondelick, Mark A.; Hardwick, Christopher; Vaughan, Derek; Hoang, Thao; Funk, Michael, Vortex waste separator apparatus.
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Kenley Rodney S. ; Matthews Dawn ; Treu Dennis M., Water treatment for dialysate preparation.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Blood filter 원문보기