[특허]Reducing centrifugal pump bearing wear through dynamic magnetic coupling

Medtronic, Inc.

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04D-013/02 F04D-027/00 F04D-029/04 F04D-025/02 F04D-015/00 F04D-013/06 F04D-029/041 F04D-029/042 F04D-029/60 A61M-001/10 F04D-001/00 F04D-029/22
출원번호	US-0337306 (2016-10-28)
등록번호	US-9945382 (2018-04-17)
발명자 / 주소	Naidyhorski, Roger A. Steffens, Brian J. Petersen, Craig D.
출원인 / 주소	Medtronic, Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 46

초록 ▼

A pump drive for an extracorporeal blood pumping system including an adjustable drive magnet. The pump drive may be coupled to a blood pump which includes a pump impeller. The pump drive may include a stepper motor for dynamically adjusting the position of the drive magnet. The position of the drive magnet may be varied to vary the distance between the drive magnet and an impeller magnet of the pump impeller. Adjusting the position of the drive magnet may include dynamically adjusting the drive magnet and may include axially moving the drive magnet to thereby vary a magnetic attraction force between the drive magnet and the impeller magnet which may thereby minimize forces acting on one or more bearings of a pump impeller.

대표청구항 ▼

1. A method of minimizing wear on at least one of an upper bearing and a lower bearing of a centrifugal blood pump comprising a pump impeller, the method comprising: varying a position of a pump drive magnet such that a magnetic attraction force between a pump impeller magnet and the drive magnet is approximately equal and opposite a pump impeller lift force, the impeller lift force caused by an actuation of the pump impeller;wherein varying the position of the pump drive magnet includes displacing a drive motor coupled to the drive magnet; and wherein displacing the drive motor comprises actuating a stepper motor coupled to the drive motor;wherein the stepper motor and the drive motor share a common rotation central axis;wherein the magnetic attraction force causes the pump impeller to act on the lower bearing and the lift force causes the pump impeller to act on the upper bearing; andwherein when the magnetic attraction force and the lift force are approximately equal and opposite, an axial force on each of the upper bearing and the lower bearing is minimized. 2. The method of claim 1, wherein actuating the stepper motor comprises controlling the stepper motor via a system controller. 3. The method of claim 2, wherein controlling the stepper motor via the system controller comprises: transmitting a drive motor speed to the system controller;determining a stepper motor position based upon the drive motor speed; andactuating the stepper motor to displace the drive motor whereby the drive magnet is axially moved. 4. The method of claim 3 wherein actuating the stepper motor comprises actuating the stepper motor via telemetry. 5. The method of claim 1, further comprising a pump drive housing defining a chamber within which the drive motor is received, wherein the stepper motor is threadably coupled to the drive motor and is configured to axially displace the drive motor; wherein the stepper motor axially displaces the drive motor relative to the pump drive housing. 6. A method of minimizing wear on at least one of an upper bearing and a lower bearing of a centrifugal blood pump comprising a pump impeller, the method comprising: varying a position of a pump drive magnet such that a magnetic attraction force between a pump impeller magnet and the drive magnet is approximately equal and opposite a pump impeller lift force, the impeller lift force caused by an actuation of the pump impeller; further comprising a pump drive housing defining a chamber within which a drive motor is received, wherein a stepper motor is threadably coupled to the drive motor and is configured to axially displace the drive motor; wherein the stepper motor axially displaces the drive motor relative to the pump drive housing; wherein varying the position of the pump drive magnet includes displacing the drive motor coupled to the drive magnet; and wherein displacing the drive motor comprises actuating the stepper motor coupled to the drive motor; wherein the stepper motor and the drive motor share a common rotation central axis; wherein the magnetic attraction force causes the pump impeller to act on the lower bearing and the lift force causes the pump impeller to act on the upper bearing; and wherein when the magnetic attraction force and the lift force are approximately equal and opposite, an axial force on each of the upper bearing and the lower bearing is minimized. 7. The method of claim 6, wherein actuating the stepper motor comprises controlling the stepper motor via a system controller. 8. The method of claim 7, wherein controlling the stepper motor via the system controller comprises: transmitting a drive motor speed to the system controller;determining a stepper motor position based upon the drive motor speed; andactuating the stepper motor to displace the drive motor whereby the drive magnet is axially moved. 9. The method of claim 8, wherein actuating the stepper motor comprises actuating the stepper motor via telemetry.

이 특허에 인용된 특허 (46)

Killen, Richard, Adjustable magnetic coupler.
상세보기
Janson Gunnar H. (Dudley MA), Adjustable tensioner.
상세보기
Scott Craig, Adjustable torque hysteresis clutch.
상세보기
Rafferty Edson Howard (Excelsior MN) Kletschka Harold D. (Minneapolis MN), Apparatus for use with delicate fluids.
상세보기
Hart Robert M., Bearingless blood pump and electronic drive system.
상세보기
Joseph P. Veres, Blood pump.
상세보기
Nose, Yukihiko; Ichikawa, Seiji; Shinohara, Toshiyuki, Blood pump.
상세보기
Ohara Yasuhisa ; Makinouchi Kenzo ; Nose Yukihiko, Blood pump.
상세보기
Buckholtz Dwight A. (Eden Prairie MN), Blood pump drive system.
상세보기
Buckholtz Dwight A. (Eden Prairie MN), Blood pump drive system.
상세보기
Nakazawa Tadashi (Houston TX) Takami Yoshiyuki (Houston TX) Makinouchi Kenzo (Houston TX) Nose Yukihiko (Houston TX), Blood pump having magnetic attraction.
상세보기
Clausen Earl W. (Eden Prairie MN) Hubbard Lloyd C. (Deephaven MN), Centrifugal blood pump.
상세보기
Clausen Earl W. (Eden Prairie MN) Hubbard Lloyd C. (Excelsior MN), Centrifugal blood pump.
상세보기
Nojiri Toshihiko,JPX ; Nakazeki Tsugito,JPX ; Akamatsu Teruaki,JPX, Centrifugal blood pump assembly.
상세보기
Clausen Earl W. (Wayzata MN) Hubbard Lloyd C. (Minnetonka MN), Centrifugal blood pump with impeller.
상세보기
Akamatsu Teruaki,JPX ; Nojiri Toshihiko,JPX ; Ozaki Takayoshi,JPX ; Suzuki Minoru,JPX, Centrifugal fluid pump assembly.
상세보기
Cruz, Ethan E.; Trifilo, Timothy M., Centrifugal magnetic clutch.
상세보기
Schmidt Eugen,DEX, Controllable coolant pump for motor vehicles.
상세보기
Biver,Paul J.; Playford,Mark A.; Quill,Jeremiah D.; Peck,Gregory L., Impeller adjustment device and method for doing the same for close coupled pumps.
상세보기
Clague Cynthia T. ; Dorman Frank D. ; Hamlen Robert C. ; Hegeman ; III Donald W. ; Miller Timothy A. ; Poissant Joseph E. ; Stone Richard T. ; Sullivan Michael P., Junction for shear sensitive biological fluid paths.
상세보기
Clague Cynthia T. ; Dorman Frank D. ; Hamlen Robert C. ; Hegeman ; III Donald W. ; Miller Timothy A. ; Poissant Joseph E. ; Stone Richard T. ; Sullivan Michael P, Junction for shears sensitive biological fluid paths.
상세보기
Laffey Kathleen M. (Rochester NY) Sokac Russell J. (Rochester NY) Martin Michael J. (Rochester NY) Durfey Lloyd W. (Palmyra NY) Garavuso Gerald (Farmington NY), Magnetic clutch with adjustable slip torque.
상세보기
Piazza Robert W. (Petaluma CA), Magnetic drive pump with axially adjustable impeller.
상세보기
Yu Tse Lin TW, Magnetic transmission structure.
상세보기
Mizuno Motoshige (Tokai JPX), Magnetic-drive centrifugal pump.
상세보기
Kyo Osamu (Handa JPX) Akitsu Yasuo (Handa JPX), Magnetic-drive device for rotary machinery.
상세보기
Bingler Douglas J. (Furlong PA), Magnetically coupled pump and impeller assembly therefor.
상세보기
Lustwerk Ferdinand (Page Rd. Lincoln MA 01773), Magnetically driven pump.
상세보기
Yoshiyuki Honma (Tokyo JA) Fumio Yamazaki (Tokyo JA), Magnetically driven rotary pumps.
상세보기
Suzuki Minoru,JPX ; Nojiri Toshihiko,JPX, Magnetically suspended centrifugal pump apparatus with an automatic neutral position setting control.
상세보기
Kingsford Kenji A. ; Nguyen Hy Ba, Magnetically-driven centrifugal pump.
상세보기
Paden Bradley E., Magnetically-suspended centrifugal blood pump.
상세보기
Clausen Earl W. (Wayzata MN) Hubbard Lloyd C. (Minnetonka MN), Method and apparatus for sterilization of a centrifugal pump.
상세보기
Nakazeki Tsugito,JPX ; Akamatsu Teruaki,JPX ; Nojiri Toshihiko,JPX, Method of controlling blood pump.
상세보기
Kluth, Hans-Ulrich; Muller, Wolfgang, Mixing valve with axially segmented stator windings for axially positioning a control element for controlling the fluid connection between inlets and outlets.
상세보기
Okamoto Kiyohide (Himeji JPX) Okita Ryosuke (Himeji JPX) Yamada Masaya (Himeji JPX), Permanent magnet coupling torque limiter.
상세보기
Knorr ; Manfred, Permanent magnet type pump.
상세보기
Hanai, Shuichi; Togawa, Kyosuke; Adachi, Kazunari; Nakajima, Nobuhisa; Sakumoto, Takashi, Pressure-operated mechanism and water pump including the same.
상세보기
Rafferty Edson Howard (Excelsior MN) Kletschka Harold D. (Minneapolis MN), Pumping apparatus and process characterized by gentle operation.
상세보기
Rafferty Edson Howard (Excelsior MN) Kletschka Harold D. (Minneapolis MN), Pumping apparatus and process characterized by gentle operation.
상세보기
Denk Joseph (Manhattan Beach CA) Koltz Edmund G. (Los Angeles CA) Rodriguez Henry (Maywood CA) McCarty Frederick B. (San Pedro CA), Reluctance torque coupler.
상세보기
Sherman ; Jr. George L. (Kingwood TX) Elko Daniel G. (Fulshear TX), Tank cleaning device.
상세보기
Maeda, Hiroyuki; Sato, Masafumi; Araki, Kenji; Anai, Hirofumi, Turbo blood pump.
상세보기
Maeda, Hiroyuki; Sato, Masafumi; Araki, Kenji; Anai, Hirofumi, Turbo blood pump.
상세보기
Horvath, David; Golding, Leonard A. R.; Massiello, Alex, Two-stage rotodynamic blood pump with axially movable rotor assembly for adjusting hydraulic performance characteristics.
상세보기
Togawa, Kyosuke; Shikida, Takasuke, Water pump and control method for same.
상세보기

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

저장형식

Text(ASCII format)
Excel format
PIAS분석(.xls)

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

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

연합인증

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (46)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (46)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트