EP3630218A1 - Mechanische kreislaufstützvorrichtung mit zentrifugallaufrad zur implantation in der absteigenden aorta - Google Patents

Mechanische kreislaufstützvorrichtung mit zentrifugallaufrad zur implantation in der absteigenden aorta

Info

Publication number
EP3630218A1
EP3630218A1 EP18809622.6A EP18809622A EP3630218A1 EP 3630218 A1 EP3630218 A1 EP 3630218A1 EP 18809622 A EP18809622 A EP 18809622A EP 3630218 A1 EP3630218 A1 EP 3630218A1
Authority
EP
European Patent Office
Prior art keywords
impeller
support
casing
mcs
blood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18809622.6A
Other languages
English (en)
French (fr)
Other versions
EP3630218A4 (de
Inventor
Theodosios Korakianitis
Martin T. ROTHMAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Barts Health NHS Trust Royal London Hospital
Queen Mary University of London
Original Assignee
Barts Health NHS Trust Royal London Hospital
Queen Mary University of London
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/619,335 external-priority patent/US10857274B2/en
Application filed by Barts Health NHS Trust Royal London Hospital, Queen Mary University of London filed Critical Barts Health NHS Trust Royal London Hospital
Publication of EP3630218A1 publication Critical patent/EP3630218A1/de
Publication of EP3630218A4 publication Critical patent/EP3630218A4/de
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0646—Units comprising pumps and their driving means the pump being electrically driven the hollow pump or motor shaft being the conduit for the working fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/205—Non-positive displacement blood pumps
    • A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
    • A61M60/226—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
    • A61M60/232—Centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/135—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting
    • A61M60/139—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting inside the aorta, e.g. intra-aortic balloon pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/403—Details relating to driving for non-positive displacement blood pumps
    • A61M60/422—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/50—Details relating to control
    • A61M60/508—Electronic control means, e.g. for feedback regulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/804—Impellers
    • A61M60/806—Vanes or blades
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/81—Pump housings
    • A61M60/812—Vanes or blades, e.g. static flow guides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/818—Bearings
    • A61M60/82—Magnetic bearings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/818—Bearings
    • A61M60/824—Hydrodynamic or fluid film bearings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/871—Energy supply devices; Converters therefor
    • A61M60/873—Energy supply devices; Converters therefor specially adapted for wireless or transcutaneous energy transfer [TET], e.g. inductive charging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/871—Energy supply devices; Converters therefor
    • A61M60/876—Implantable batteries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/043—Shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/048—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Fluid Mechanics (AREA)
  • Transplantation (AREA)
  • Electromagnetism (AREA)
  • External Artificial Organs (AREA)
EP18809622.6A 2017-06-01 2018-06-01 Mechanische kreislaufstützvorrichtung mit zentrifugallaufrad zur implantation in der absteigenden aorta Pending EP3630218A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762513927P 2017-06-01 2017-06-01
US15/619,335 US10857274B2 (en) 2012-11-06 2017-06-09 Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
PCT/US2018/035694 WO2018223060A1 (en) 2017-06-01 2018-06-01 Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta

Publications (2)

Publication Number Publication Date
EP3630218A1 true EP3630218A1 (de) 2020-04-08
EP3630218A4 EP3630218A4 (de) 2021-05-12

Family

ID=64455616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18809622.6A Pending EP3630218A4 (de) 2017-06-01 2018-06-01 Mechanische kreislaufstützvorrichtung mit zentrifugallaufrad zur implantation in der absteigenden aorta

Country Status (2)

Country Link
EP (1) EP3630218A4 (de)
WO (1) WO2018223060A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10857274B2 (en) 2012-11-06 2020-12-08 Queen Mary University Of London Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
US11116959B2 (en) 2018-04-04 2021-09-14 Theodosios Alexander Removable mechanical circulatory support for short term use
US11524153B2 (en) 2016-10-03 2022-12-13 Queen Mary University Of London Mechanical circulatory support device with axial flow turbomachine optimized for heart failure and cardio-renal syndrome by implantation in the descending aorta
US11679250B2 (en) 2019-06-28 2023-06-20 Theodosios Alexander Removable mechanical circulatory support for short term use

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625712A (en) 1983-09-28 1986-12-02 Nimbus, Inc. High-capacity intravascular blood pump utilizing percutaneous access
US4779614A (en) 1987-04-09 1988-10-25 Nimbus Medical, Inc. Magnetically suspended rotor axial flow blood pump
US4846152A (en) 1987-11-24 1989-07-11 Nimbus Medical, Inc. Single-stage axial flow blood pump
US5267940A (en) 1989-11-29 1993-12-07 The Administrators Of The Tulane Educational Fund Cardiovascular flow enhancer and method of operation
US6074180A (en) 1996-05-03 2000-06-13 Medquest Products, Inc. Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
EP0900572B1 (de) 1997-09-04 2005-01-12 Levitronix LLC Zentrifugalpumpe
US6889082B2 (en) 1997-10-09 2005-05-03 Orqis Medical Corporation Implantable heart assist system and method of applying same
AUPP995999A0 (en) 1999-04-23 1999-05-20 University Of Technology, Sydney Non-contact estimation and control system
US7022100B1 (en) 1999-09-03 2006-04-04 A-Med Systems, Inc. Guidable intravascular blood pump and related methods
EP1113177B1 (de) * 1999-12-27 2003-12-03 Ntn Corporation Flüssigkeitspumpe mit magnetisch aufgehängtem Laufrad
US6616624B1 (en) 2000-10-30 2003-09-09 Cvrx, Inc. Systems and method for controlling renovascular perfusion
US6632169B2 (en) 2001-03-13 2003-10-14 Ltk Enterprises, L.L.C. Optimized pulsatile-flow ventricular-assist device and total artificial heart
US7238151B2 (en) 2002-02-26 2007-07-03 Frazier O Howard Permanent heart assist system
US6716157B2 (en) * 2002-02-28 2004-04-06 Michael P. Goldowsky Magnetic suspension blood pump
DE102004054714A1 (de) 2004-11-12 2006-05-24 Impella Cardiosystems Gmbh Faltbare intravasal einführbare Blutpumpe
EP2438937B1 (de) * 2005-06-06 2015-10-28 The Cleveland Clinic Foundation Blutpumpe
JP5155186B2 (ja) * 2006-01-13 2013-02-27 ハートウェア、インコーポレイテッド 回転式血液ポンプ
CA2646277C (en) 2006-03-23 2016-01-12 The Penn State Research Foundation Heart assist device with expandable impeller pump
CA2687114C (en) 2006-05-31 2014-01-14 Richard Wampler Heart assist device
CA2663586C (en) 2006-09-14 2014-10-28 Circulite, Inc Intravascular blood pump and catheter
US9028392B2 (en) 2006-12-01 2015-05-12 NuCardia, Inc. Medical device
US8747459B2 (en) 2006-12-06 2014-06-10 Medtronic Corevalve Llc System and method for transapical delivery of an annulus anchored self-expanding valve
EP2131888B1 (de) 2007-02-26 2017-04-05 HeartWare, Inc. Intravaskuläre ventrikuläre hilfsvorrichtung
WO2008135988A2 (en) 2007-05-03 2008-11-13 Leviticus-Cardio Ltd. Permanent ventricular assist device for treating heart failure
DE602007004842D1 (de) 2007-07-18 2010-04-01 Surgery In Motion Ltd Vorrichtung zur Unterstützung bei der Herzbehandlung
US8079948B2 (en) 2007-08-29 2011-12-20 NuCardia, Inc. Article comprising an impeller
BRPI0911493B8 (pt) 2008-06-23 2021-06-22 Cardiobridge Gmbh bomba de cateter para suporte circulatório
AU2010266166B2 (en) 2009-07-01 2015-09-03 The Penn State Research Foundation Blood pump with expandable cannula
US8579789B1 (en) 2009-09-23 2013-11-12 Leviticus Cardio Ltd. Endovascular ventricular assist device, using the mathematical objective and principle of superposition
US8690749B1 (en) 2009-11-02 2014-04-08 Anthony Nunez Wireless compressible heart pump
US8734508B2 (en) 2009-12-21 2014-05-27 Boston Scientific Scimed, Inc. Systems and methods for making and using percutaneously-delivered pumping systems for providing hemodynamic support
JP5577506B2 (ja) * 2010-09-14 2014-08-27 ソーラテック コーポレイション 遠心式ポンプ装置
US8562509B2 (en) 2010-12-30 2013-10-22 Cook Medical Technologies Llc Ventricular assist device
US8597170B2 (en) 2011-01-05 2013-12-03 Thoratec Corporation Catheter pump
WO2012094641A2 (en) 2011-01-06 2012-07-12 Thoratec Corporation Percutaneous heart pump
US8535212B2 (en) * 2011-03-30 2013-09-17 Jarvik Robert Centrifugal blood pumps with reverse flow washout
GB201112350D0 (en) 2011-07-18 2011-08-31 Calon Cardio Technology Ltd Cardiac Pump
KR102025959B1 (ko) 2011-11-28 2019-09-26 미-바드, 아이엔씨. 심실 보조 장치 및 방법
IN2014DN07493A (de) 2012-02-07 2015-04-24 Hridaya Inc
EP3159023B1 (de) 2012-03-05 2017-11-29 Tc1 Llc Methode zur kalibrierung implantierbarer medizinischer pumpen
CA2868853C (en) 2012-03-26 2021-02-09 Procyrion, Inc. Systems and methods for fluid flows and/or pressures for circulation and perfusion enhancement
DE102012207053A1 (de) 2012-04-27 2013-10-31 Abiomed Europe Gmbh Intravasale rotationsblutpumpe
TR201207222A2 (tr) 2012-06-21 2012-11-21 Oran B�Lent Damar içi kalp destek cihazı.
EP2692369B1 (de) 2012-07-31 2015-04-15 Rheinisch-Westfälische Technische Hochschule Aachen Blutpumpenvorrichtung mit axialem Durchfluss
GB201219958D0 (en) * 2012-11-06 2012-12-19 Queen Mary Innovation Ltd Mechanical circulatory support

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10857274B2 (en) 2012-11-06 2020-12-08 Queen Mary University Of London Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
US11813445B2 (en) 2012-11-06 2023-11-14 Queen Mary University Of London Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
US11524153B2 (en) 2016-10-03 2022-12-13 Queen Mary University Of London Mechanical circulatory support device with axial flow turbomachine optimized for heart failure and cardio-renal syndrome by implantation in the descending aorta
US11116959B2 (en) 2018-04-04 2021-09-14 Theodosios Alexander Removable mechanical circulatory support for short term use
US11679250B2 (en) 2019-06-28 2023-06-20 Theodosios Alexander Removable mechanical circulatory support for short term use

Also Published As

Publication number Publication date
WO2018223060A1 (en) 2018-12-06
EP3630218A4 (de) 2021-05-12

Similar Documents

Publication Publication Date Title
US11813445B2 (en) Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
US11116959B2 (en) Removable mechanical circulatory support for short term use
US11185678B2 (en) Blood pump
WO2018067410A1 (en) Mechanical circulatory support device with axial flow turbomachine optimized for heart failure and cardio-renal syndrome
EP2734251B1 (de) Herzpumpe
EP3630218A1 (de) Mechanische kreislaufstützvorrichtung mit zentrifugallaufrad zur implantation in der absteigenden aorta
US20110301403A1 (en) Axial flow pump with multi-grooved rotor
US11524153B2 (en) Mechanical circulatory support device with axial flow turbomachine optimized for heart failure and cardio-renal syndrome by implantation in the descending aorta
US20150297813A1 (en) Mechanical circulatory support
US20240058594A1 (en) Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
US20230233835A1 (en) Mechanical circulatory support device with axial flow turbomachine optimized for heart failure and cardio-renal syndrome by implantation in the descending aorta
Benkowski et al. Rotary blood pump

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191231

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 29/048 20060101ALI20201221BHEP

Ipc: F04D 29/043 20060101ALI20201221BHEP

Ipc: F04D 13/06 20060101ALI20201221BHEP

Ipc: F04D 29/22 20060101ALI20201221BHEP

Ipc: A61N 1/362 20060101ALI20201221BHEP

Ipc: A61M 1/12 20060101ALI20201221BHEP

Ipc: F04D 13/16 20060101ALI20201221BHEP

Ipc: A61M 1/10 20060101AFI20201221BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20210414