IT1222840B - Struttura di valvola cardiaca artificiale ad elevato rendimento - Google Patents

Struttura di valvola cardiaca artificiale ad elevato rendimento

Info

Publication number
IT1222840B
IT1222840B IT2216787A IT2216787A IT1222840B IT 1222840 B IT1222840 B IT 1222840B IT 2216787 A IT2216787 A IT 2216787A IT 2216787 A IT2216787 A IT 2216787A IT 1222840 B IT1222840 B IT 1222840B
Authority
IT
Italy
Prior art keywords
high performance
valve structure
cardiac valve
artificial cardiac
performance artificial
Prior art date
Application number
IT2216787A
Other languages
English (en)
Other versions
IT8722167A0 (it
Inventor
Roberto Parravicini
Original Assignee
Roberto Parravicini
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 Roberto Parravicini filed Critical Roberto Parravicini
Priority to IT2216787A priority Critical patent/IT1222840B/it
Publication of IT8722167A0 publication Critical patent/IT8722167A0/it
Priority to US07/249,947 priority patent/US4878909A/en
Application granted granted Critical
Publication of IT1222840B publication Critical patent/IT1222840B/it

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart 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
    • A61F2/2403—Heart 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 with pivoting rigid closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transplantation (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Prostheses (AREA)
IT2216787A 1987-10-06 1987-10-06 Struttura di valvola cardiaca artificiale ad elevato rendimento IT1222840B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT2216787A IT1222840B (it) 1987-10-06 1987-10-06 Struttura di valvola cardiaca artificiale ad elevato rendimento
US07/249,947 US4878909A (en) 1987-10-06 1988-09-27 High efficiency cardiac valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2216787A IT1222840B (it) 1987-10-06 1987-10-06 Struttura di valvola cardiaca artificiale ad elevato rendimento

Publications (2)

Publication Number Publication Date
IT8722167A0 IT8722167A0 (it) 1987-10-06
IT1222840B true IT1222840B (it) 1990-09-12

Family

ID=11192495

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2216787A IT1222840B (it) 1987-10-06 1987-10-06 Struttura di valvola cardiaca artificiale ad elevato rendimento

Country Status (2)

Country Link
US (1) US4878909A (it)
IT (1) IT1222840B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239690A (en) * 1989-12-20 1991-07-10 Cardio Carbon Ltd Heart valve prosthesis.
IT1238603B (it) * 1990-01-25 1993-08-18 Roberto Parravicini Valvola cardiaca artificiale, con elevatissimo grado di sicurezza
US5078739A (en) * 1990-07-20 1992-01-07 Janus Biomedical, Inc. Bileaflet heart valve with external leaflets
US6319281B1 (en) 1999-03-22 2001-11-20 Kumar R. Patel Artificial venous valve and sizing catheter
US20030204250A1 (en) * 2002-04-26 2003-10-30 Demetrio Bicer Heart valve
RU2373900C1 (ru) * 2008-07-23 2009-11-27 Закрытое Акционерное Общество Научно-Производственное Предприятие "Мединж" Протез клапана сердца
US10478288B2 (en) 2015-09-30 2019-11-19 Clover Life Sciences Inc. Trileaflet mechanical prosthetic heart valve
EP3581232B1 (en) * 2018-06-11 2021-02-17 Dentsply IH AB Urethral stent and bladder control assembly comprising such a urethral stent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178638A (en) * 1977-08-01 1979-12-18 Louis C. Meyer Split leaflet check valves
US4357715A (en) * 1980-01-14 1982-11-09 Hemex Incorporated Heart valve prosthesis
IT1129530B (it) * 1980-01-16 1986-06-04 Roberto Parravicini Protesi valvolare cardiaca
US4406022A (en) * 1981-11-16 1983-09-27 Kathryn Roy Prosthetic valve means for cardiovascular surgery

Also Published As

Publication number Publication date
US4878909A (en) 1989-11-07
IT8722167A0 (it) 1987-10-06

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971028