JPS6113818B2 - - Google Patents

Info

Publication number
JPS6113818B2
JPS6113818B2 JP55105809A JP10580980A JPS6113818B2 JP S6113818 B2 JPS6113818 B2 JP S6113818B2 JP 55105809 A JP55105809 A JP 55105809A JP 10580980 A JP10580980 A JP 10580980A JP S6113818 B2 JPS6113818 B2 JP S6113818B2
Authority
JP
Japan
Prior art keywords
prosthesis
tube body
ring
valve
thread
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.)
Expired
Application number
JP55105809A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5652055A (en
Inventor
Puigu Matsusaana Migueru
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of JPS5652055A publication Critical patent/JPS5652055A/ja
Publication of JPS6113818B2 publication Critical patent/JPS6113818B2/ja
Granted legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/24Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2442Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
    • A61F2/2445Annuloplasty rings in direct contact with the valve annulus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0004Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
JP10580980A 1979-07-31 1980-07-30 Annular protese* which can be adjusted* for operation of heart Granted JPS5652055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1979244903U ES244903Y (es) 1979-07-31 1979-07-31 Protesis anular regulable para cirugia cardiaca

Publications (2)

Publication Number Publication Date
JPS5652055A JPS5652055A (en) 1981-05-09
JPS6113818B2 true JPS6113818B2 (2) 1986-04-15

Family

ID=8404121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10580980A Granted JPS5652055A (en) 1979-07-31 1980-07-30 Annular protese* which can be adjusted* for operation of heart

Country Status (10)

Country Link
US (1) US4290151A (2)
JP (1) JPS5652055A (2)
AU (1) AU530703B2 (2)
CA (1) CA1138154A (2)
DE (1) DE3028142A1 (2)
ES (1) ES244903Y (2)
FR (1) FR2462150A1 (2)
GB (1) GB2054386B (2)
IT (1) IT1131776B (2)
NL (1) NL8004367A (2)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012196504A (ja) * 2005-03-25 2012-10-18 Mitral Solutions Inc 解剖学的なオリフィス又は内腔の内周を制御するための方法及び装置
US8864823B2 (en) 2005-03-25 2014-10-21 StJude Medical, Cardiology Division, Inc. Methods and apparatus for controlling the internal circumference of an anatomic orifice or lumen
US8882830B2 (en) 2002-08-29 2014-11-11 StJude Medical, Cardiology Division, Inc. Implantable devices for controlling the internal circumference of an anatomic orifice or lumen

Families Citing this family (127)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230858C2 (de) * 1982-08-19 1985-01-24 Ahmadi, Ali, Dr. med., 7809 Denzlingen Ringprothese
CA1303298C (en) * 1986-08-06 1992-06-16 Alain Carpentier Flexible cardiac valvular support prosthesis
US4917698A (en) * 1988-12-22 1990-04-17 Baxter International Inc. Multi-segmented annuloplasty ring prosthesis
CA2049971C (en) * 1989-02-13 2001-08-21 Hung L. Lam Selectively flexible annuloplasty ring
US5011481A (en) * 1989-07-17 1991-04-30 Medtronic, Inc. Holder for annuloplasty ring
US5041130A (en) * 1989-07-31 1991-08-20 Baxter International Inc. Flexible annuloplasty ring and holder
US5350420A (en) * 1989-07-31 1994-09-27 Baxter International Inc. Flexible annuloplasty ring and holder
US5290300A (en) * 1989-07-31 1994-03-01 Baxter International Inc. Flexible suture guide and holder
FR2662074A1 (fr) * 1990-05-17 1991-11-22 Seguin Jacques Anneau prothetique pour annuloplastie mitrale ou tricuspide.
US5064431A (en) * 1991-01-16 1991-11-12 St. Jude Medical Incorporated Annuloplasty ring
US5201880A (en) * 1992-01-27 1993-04-13 Pioneering Technologies, Inc. Mitral and tricuspid annuloplasty rings
WO1993015690A2 (en) * 1992-01-27 1993-08-19 Medtronic, Inc. Annuloplasty and suture rings
FR2708458B1 (fr) * 1993-08-03 1995-09-15 Seguin Jacques Anneau prothétique pour chirurgie cardiaque.
US5593435A (en) * 1994-07-29 1997-01-14 Baxter International Inc. Distensible annuloplasty ring for surgical remodelling of an atrioventricular valve and nonsurgical method for post-implantation distension thereof to accommodate patient growth
US6217610B1 (en) 1994-07-29 2001-04-17 Edwards Lifesciences Corporation Expandable annuloplasty ring
EP0869751A1 (en) 1995-11-01 1998-10-14 St. Jude Medical, Inc. Bioresorbable annuloplasty prosthesis
DE69630235T2 (de) * 1995-12-01 2004-08-05 Medtronic, Inc., Minneapolis Anuloplastik-Prothese
US6182664B1 (en) * 1996-02-19 2001-02-06 Edwards Lifesciences Corporation Minimally invasive cardiac valve surgery procedure
US5843178A (en) * 1996-06-20 1998-12-01 St. Jude Medical, Inc. Suture guard for annuloplasty ring
US6102945A (en) * 1998-10-16 2000-08-15 Sulzer Carbomedics, Inc. Separable annuloplasty ring
US6406492B1 (en) 1999-04-08 2002-06-18 Sulzer Carbomedics Inc. Annuloplasty ring holder
US6348068B1 (en) 1999-07-23 2002-02-19 Sulzer Carbomedics Inc. Multi-filament valve stent for a cardisc valvular prosthesis
US6319280B1 (en) 1999-08-03 2001-11-20 St. Jude Medical, Inc. Prosthetic ring holder
US6569198B1 (en) 2000-03-31 2003-05-27 Richard A. Wilson Mitral or tricuspid valve annuloplasty prosthetic device
US6726716B2 (en) * 2001-08-24 2004-04-27 Edwards Lifesciences Corporation Self-molding annuloplasty ring
WO2003105670A2 (en) 2002-01-10 2003-12-24 Guided Delivery Systems, Inc. Devices and methods for heart valve repair
US7118595B2 (en) * 2002-03-18 2006-10-10 Medtronic, Inc. Flexible annuloplasty prosthesis and holder
US6719786B2 (en) * 2002-03-18 2004-04-13 Medtronic, Inc. Flexible annuloplasty prosthesis and holder
US8287555B2 (en) 2003-02-06 2012-10-16 Guided Delivery Systems, Inc. Devices and methods for heart valve repair
US7753924B2 (en) 2003-09-04 2010-07-13 Guided Delivery Systems, Inc. Delivery devices and methods for heart valve repair
US7753922B2 (en) 2003-09-04 2010-07-13 Guided Delivery Systems, Inc. Devices and methods for cardiac annulus stabilization and treatment
US8641727B2 (en) 2002-06-13 2014-02-04 Guided Delivery Systems, Inc. Devices and methods for heart valve repair
US9949829B2 (en) 2002-06-13 2018-04-24 Ancora Heart, Inc. Delivery devices and methods for heart valve repair
US20060122633A1 (en) 2002-06-13 2006-06-08 John To Methods and devices for termination
US7883538B2 (en) 2002-06-13 2011-02-08 Guided Delivery Systems Inc. Methods and devices for termination
US20050038509A1 (en) * 2003-08-14 2005-02-17 Ashe Kassem Ali Valve prosthesis including a prosthetic leaflet
US20050273138A1 (en) * 2003-12-19 2005-12-08 Guided Delivery Systems, Inc. Devices and methods for anchoring tissue
US8206439B2 (en) * 2004-02-23 2012-06-26 International Heart Institute Of Montana Foundation Internal prosthesis for reconstruction of cardiac geometry
DE102004040135B3 (de) * 2004-08-19 2005-12-15 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Selbstfahrendes Gerät zum Abfräsen von Verkehrsflächen
WO2006097931A2 (en) 2005-03-17 2006-09-21 Valtech Cardio, Ltd. Mitral valve treatment techniques
US8333777B2 (en) 2005-04-22 2012-12-18 Benvenue Medical, Inc. Catheter-based tissue remodeling devices and methods
US8951285B2 (en) 2005-07-05 2015-02-10 Mitralign, Inc. Tissue anchor, anchoring system and methods of using the same
US9011528B2 (en) * 2005-09-30 2015-04-21 Medtronic, Inc. Flexible annuloplasty prosthesis
US8007530B2 (en) * 2005-09-30 2011-08-30 Medtronic, Inc. Tool and method for implanting an annuloplasty prosthesis
ATE499074T1 (de) 2006-05-15 2011-03-15 Edwards Lifesciences Ag System zur veränderung der geometrie des herzens
US8388680B2 (en) 2006-10-18 2013-03-05 Guided Delivery Systems, Inc. Methods and devices for catheter advancement and delivery of substances therethrough
US11259924B2 (en) 2006-12-05 2022-03-01 Valtech Cardio Ltd. Implantation of repair devices in the heart
US9883943B2 (en) 2006-12-05 2018-02-06 Valtech Cardio, Ltd. Implantation of repair devices in the heart
US11660190B2 (en) 2007-03-13 2023-05-30 Edwards Lifesciences Corporation Tissue anchors, systems and methods, and devices
US9125632B2 (en) * 2007-10-19 2015-09-08 Guided Delivery Systems, Inc. Systems and methods for cardiac remodeling
EP2222232B1 (en) * 2007-10-19 2018-12-12 Ancora Heart, Inc. Devices for locking and/or cutting tethers
US8349002B2 (en) * 2008-01-16 2013-01-08 QuickRing Medical Technologies, Ltd. Adjustable annuloplasty rings
AU2009212393B2 (en) 2008-02-06 2014-07-24 Ancora Heart, Inc. Multi-window guide tunnel
US8382829B1 (en) 2008-03-10 2013-02-26 Mitralign, Inc. Method to reduce mitral regurgitation by cinching the commissure of the mitral valve
US8096985B2 (en) 2008-05-07 2012-01-17 Guided Delivery Systems Inc. Deflectable guide
CA2728078A1 (en) 2008-06-16 2010-01-14 Valtech Cardio, Ltd. Annuloplasty devices and methods of delivery therefor
CA2740245C (en) * 2008-10-10 2015-04-28 Guided Delivery Systems, Inc. Tether tensioning devices and related methods
CN102245109A (zh) 2008-10-10 2011-11-16 导向传输系统股份有限公司 终止装置和相关方法
US20100152844A1 (en) 2008-12-15 2010-06-17 Couetil Jean-Paul A Annuloplasty ring with directional flexibilities and rigidities to assist the mitral annulus dynamics
US9011530B2 (en) 2008-12-22 2015-04-21 Valtech Cardio, Ltd. Partially-adjustable annuloplasty structure
US8545553B2 (en) 2009-05-04 2013-10-01 Valtech Cardio, Ltd. Over-wire rotation tool
US10517719B2 (en) 2008-12-22 2019-12-31 Valtech Cardio, Ltd. Implantation of repair devices in the heart
US8715342B2 (en) 2009-05-07 2014-05-06 Valtech Cardio, Ltd. Annuloplasty ring with intra-ring anchoring
US8241351B2 (en) 2008-12-22 2012-08-14 Valtech Cardio, Ltd. Adjustable partial annuloplasty ring and mechanism therefor
EP3848002A1 (en) 2008-12-22 2021-07-14 Valtech Cardio, Ltd. Adjustable annuloplasty devices and adjustment mechanisms therefor
WO2010085456A1 (en) 2009-01-20 2010-07-29 Guided Delivery Systems Inc. Anchor deployment devices and related methods
US8361093B2 (en) * 2009-01-23 2013-01-29 Genesee Biomedical, Inc. Band forming apparatus
US8353956B2 (en) 2009-02-17 2013-01-15 Valtech Cardio, Ltd. Actively-engageable movement-restriction mechanism for use with an annuloplasty structure
US9968452B2 (en) 2009-05-04 2018-05-15 Valtech Cardio, Ltd. Annuloplasty ring delivery cathethers
US12485010B2 (en) 2009-05-07 2025-12-02 Edwards Lifesciences Innovation (Israel) Ltd. Multiple anchor delivery tool
US10098737B2 (en) 2009-10-29 2018-10-16 Valtech Cardio, Ltd. Tissue anchor for annuloplasty device
US9180007B2 (en) 2009-10-29 2015-11-10 Valtech Cardio, Ltd. Apparatus and method for guide-wire based advancement of an adjustable implant
US8734467B2 (en) 2009-12-02 2014-05-27 Valtech Cardio, Ltd. Delivery tool for implantation of spool assembly coupled to a helical anchor
US9861350B2 (en) 2010-09-03 2018-01-09 Ancora Heart, Inc. Devices and methods for anchoring tissue
US10111663B2 (en) 2011-02-18 2018-10-30 Ancora Heart, Inc. Implant retrieval device
US10709449B2 (en) 2011-02-18 2020-07-14 Ancora Heart, Inc. Systems and methods for variable stiffness tethers
EP2723274B1 (en) 2011-06-23 2017-12-27 Valtech Cardio, Ltd. Closure element for use with annuloplasty structure
US10792152B2 (en) 2011-06-23 2020-10-06 Valtech Cardio, Ltd. Closed band for percutaneous annuloplasty
US9918840B2 (en) 2011-06-23 2018-03-20 Valtech Cardio, Ltd. Closed band for percutaneous annuloplasty
US8858623B2 (en) 2011-11-04 2014-10-14 Valtech Cardio, Ltd. Implant having multiple rotational assemblies
EP3970627B1 (en) 2011-11-08 2023-12-20 Edwards Lifesciences Innovation (Israel) Ltd. Controlled steering functionality for implant-delivery tool
CN104203157B (zh) 2011-12-12 2016-02-03 戴维·阿隆 心脏瓣膜修补器械
US10849755B2 (en) 2012-09-14 2020-12-01 Boston Scientific Scimed, Inc. Mitral valve inversion prostheses
US10543088B2 (en) 2012-09-14 2020-01-28 Boston Scientific Scimed, Inc. Mitral valve inversion prostheses
CA2885354A1 (en) 2012-09-29 2014-04-03 Mitralign, Inc. Plication lock delivery system and method of use thereof
WO2014064694A2 (en) 2012-10-23 2014-05-01 Valtech Cardio, Ltd. Controlled steering functionality for implant-delivery tool
US10376266B2 (en) 2012-10-23 2019-08-13 Valtech Cardio, Ltd. Percutaneous tissue anchor techniques
WO2014087402A1 (en) 2012-12-06 2014-06-12 Valtech Cardio, Ltd. Techniques for guide-wire based advancement of a tool
EP2961351B1 (en) 2013-02-26 2018-11-28 Mitralign, Inc. Devices for percutaneous tricuspid valve repair
US10449333B2 (en) 2013-03-14 2019-10-22 Valtech Cardio, Ltd. Guidewire feeder
WO2014152503A1 (en) 2013-03-15 2014-09-25 Mitralign, Inc. Translation catheters, systems, and methods of use thereof
US10070857B2 (en) 2013-08-31 2018-09-11 Mitralign, Inc. Devices and methods for locating and implanting tissue anchors at mitral valve commissure
US10299793B2 (en) 2013-10-23 2019-05-28 Valtech Cardio, Ltd. Anchor magazine
US9610162B2 (en) 2013-12-26 2017-04-04 Valtech Cardio, Ltd. Implantation of flexible implant
US9180005B1 (en) 2014-07-17 2015-11-10 Millipede, Inc. Adjustable endolumenal mitral valve ring
EP3206629B1 (en) 2014-10-14 2021-07-14 Valtech Cardio, Ltd. Apparatus for heart valve leaflet restraining
JP6735294B2 (ja) 2015-02-13 2020-08-05 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. インプラント可能な心臓弁装置
EP4706567A2 (en) 2015-03-05 2026-03-11 Ancora Heart, Inc. Devices of visualizing and determining depth of penetration in cardiac tissue
US20160256269A1 (en) 2015-03-05 2016-09-08 Mitralign, Inc. Devices for treating paravalvular leakage and methods use thereof
EP3288496B1 (en) 2015-04-30 2024-05-29 Edwards Lifesciences Innovation (Israel) Ltd. Annuloplasty technologies
US10980973B2 (en) 2015-05-12 2021-04-20 Ancora Heart, Inc. Device and method for releasing catheters from cardiac structures
US10314707B2 (en) 2015-06-09 2019-06-11 Edwards Lifesciences, Llc Asymmetric mitral annuloplasty band
US10335275B2 (en) 2015-09-29 2019-07-02 Millipede, Inc. Methods for delivery of heart valve devices using intravascular ultrasound imaging
WO2017117370A2 (en) 2015-12-30 2017-07-06 Mitralign, Inc. System and method for reducing tricuspid regurgitation
US10751182B2 (en) 2015-12-30 2020-08-25 Edwards Lifesciences Corporation System and method for reshaping right heart
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GB201611910D0 (en) 2016-07-08 2016-08-24 Valtech Cardio Ltd Adjustable annuloplasty device with alternating peaks and troughs
CA3043891A1 (en) 2016-11-18 2018-05-24 Ancora Heart, Inc. Myocardial implant load sharing device and methods to promote lv function
CN110381887B (zh) 2017-02-10 2022-03-29 波士顿科学国际有限公司 用于重塑心脏瓣膜环的可植入装置和输送系统
US11045627B2 (en) 2017-04-18 2021-06-29 Edwards Lifesciences Corporation Catheter system with linear actuation control mechanism
US10835221B2 (en) 2017-11-02 2020-11-17 Valtech Cardio, Ltd. Implant-cinching devices and systems
US11135062B2 (en) 2017-11-20 2021-10-05 Valtech Cardio Ltd. Cinching of dilated heart muscle
CN111655200B (zh) 2018-01-24 2023-07-14 爱德华兹生命科学创新(以色列)有限公司 瓣环成形术结构的收缩
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JP7387731B2 (ja) 2018-07-12 2023-11-28 エドワーズ ライフサイエンシーズ イノベーション (イスラエル) リミテッド 弁輪形成システムおよびそのための係止ツール
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JP2022546160A (ja) 2019-08-30 2022-11-04 エドワーズ ライフサイエンシーズ イノベーション (イスラエル) リミテッド アンカーチャネル先端
KR20220066398A (ko) 2019-09-25 2022-05-24 카디악 임플란츠 엘엘씨 심장 판막 고리 감소 시스템
WO2021084407A1 (en) 2019-10-29 2021-05-06 Valtech Cardio, Ltd. Annuloplasty and tissue anchor technologies
EP4096529B1 (en) 2020-03-23 2025-05-07 Edwards Lifesciences Innovation (Israel) Ltd. Self-locking winch
WO2021236634A2 (en) 2020-05-20 2021-11-25 Cardiac Implants, Llc Reducing the diameter of a cardiac valve annulus with independent control over each of the anchors that are launched into the annulus
CA3182316A1 (en) 2020-06-19 2021-12-23 Edwards Lifesciences Innovation (Israel) Ltd. Self-stopping tissue anchors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548418A (en) * 1968-05-03 1970-12-22 Cutter Lab Graft valve transplantation for human hearts and graft-support ring therefor
NL143127B (nl) * 1969-02-04 1974-09-16 Rhone Poulenc Sa Versterkingsorgaan voor een defecte hartklep.
FR2306671A1 (fr) * 1975-04-11 1976-11-05 Rhone Poulenc Ind Implant valvulaire
FR2298313A1 (fr) * 1975-06-23 1976-08-20 Usifroid Reducteur lineaire pour valvuloplastie
US4042979A (en) * 1976-07-12 1977-08-23 Angell William W Valvuloplasty ring and prosthetic method
US4164046A (en) * 1977-05-16 1979-08-14 Cooley Denton Valve prosthesis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8882830B2 (en) 2002-08-29 2014-11-11 StJude Medical, Cardiology Division, Inc. Implantable devices for controlling the internal circumference of an anatomic orifice or lumen
US8945210B2 (en) 2002-08-29 2015-02-03 StJude Medical, Cardiology Division, Inc. Implantable devices for controlling the internal circumference of an anatomic orifice or lumen
JP2012196504A (ja) * 2005-03-25 2012-10-18 Mitral Solutions Inc 解剖学的なオリフィス又は内腔の内周を制御するための方法及び装置
US8864823B2 (en) 2005-03-25 2014-10-21 StJude Medical, Cardiology Division, Inc. Methods and apparatus for controlling the internal circumference of an anatomic orifice or lumen

Also Published As

Publication number Publication date
ES244903U (es) 1980-06-16
CA1138154A (en) 1982-12-28
GB2054386A (en) 1981-02-18
ES244903Y (es) 1980-12-01
FR2462150B1 (2) 1984-10-26
DE3028142A1 (de) 1981-02-19
US4290151A (en) 1981-09-22
JPS5652055A (en) 1981-05-09
FR2462150A1 (fr) 1981-02-13
AU530703B2 (en) 1983-07-28
IT8023749A0 (it) 1980-07-28
IT1131776B (it) 1986-06-25
GB2054386B (en) 1983-05-05
NL8004367A (nl) 1981-02-03
AU6089480A (en) 1981-02-05

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