GB1504024A - Heart valves and methods of applying coating thereon - Google Patents

Heart valves and methods of applying coating thereon

Info

Publication number
GB1504024A
GB1504024A GB3180275A GB3180275A GB1504024A GB 1504024 A GB1504024 A GB 1504024A GB 3180275 A GB3180275 A GB 3180275A GB 3180275 A GB3180275 A GB 3180275A GB 1504024 A GB1504024 A GB 1504024A
Authority
GB
United Kingdom
Prior art keywords
adhesive
sintered
coated
powder
methods
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
GB3180275A
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.)
American Hospital Supply Corp
Original Assignee
American Hospital Supply Corp
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 American Hospital Supply Corp filed Critical American Hospital Supply Corp
Priority to GB3180275A priority Critical patent/GB1504024A/en
Publication of GB1504024A publication Critical patent/GB1504024A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • 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
    • A61F2/2421—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 non-pivoting rigid closure members
    • A61F2/2424—Ball valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Transplantation (AREA)
  • Materials Engineering (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)

Abstract

1504024 Sintered metal coated heart valve AMERICAN HOSPITAL SUPPLY CORP 30 July 1975 31802/75 Heading A5R [Also in Division C7] A heart valve for implantation into body tissue has at least one surface coated with a porous sintered metal layer which is preferably applied by first coating the surface with an adhesive e.g. acrylic latex and then sprinkling the metal powder onto the adhesive. The layer is then sintered. Several layers of powder may be applied with intervening layers of adhesive. In an example -200 +325 mesh STELLITE (Trade Mark) powder is coated on a Stellite valve body casting and sintered in vacuum, at 1300‹C.
GB3180275A 1975-07-30 1975-07-30 Heart valves and methods of applying coating thereon Expired GB1504024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3180275A GB1504024A (en) 1975-07-30 1975-07-30 Heart valves and methods of applying coating thereon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3180275A GB1504024A (en) 1975-07-30 1975-07-30 Heart valves and methods of applying coating thereon

Publications (1)

Publication Number Publication Date
GB1504024A true GB1504024A (en) 1978-03-15

Family

ID=10328640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3180275A Expired GB1504024A (en) 1975-07-30 1975-07-30 Heart valves and methods of applying coating thereon

Country Status (1)

Country Link
GB (1) GB1504024A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee