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Development of prosthetic valve with self expanding suture seat.

Research Project

Project/Area Number 14370403
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Thoracic surgery
Research InstitutionThe University of Tokyo

Principal Investigator

MOTOMURA Noboru (2004)  The University of Tokyo, Faculty of Medicine, Lecturer, 医学部附属病院, 講師 (40332580)

小塚 裕 (2002-2003)  東京大学, 医学部附属病院, 助教授 (10126055)

Co-Investigator(Kenkyū-buntansha) ONO Minoru  The University of Tokyo, Faculty of Medicine, Lecturer, 医学部附属病院, 講師 (40270871)
本村 昇  東京大学, 医学部附属病院, 講師 (40332580)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥11,800,000 (Direct Cost: ¥11,800,000)
Fiscal Year 2004: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2003: ¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 2002: ¥5,000,000 (Direct Cost: ¥5,000,000)
Keywordsprosthetic valve leak / self expanding suture seat / super water absorbable polymer / 高吸水性 / 人工弁周囲逆転
Research Abstract

1)Elastic suture seat was made by super absorbable polymer combined with woven polyester artificial graft.
2)Two size of hard shell of prosthetic valve was made from plastic material, a large one had 13 mm of outer diameter and a small one had 10 mm.
3)The self expanding suture seat was made by combining the hard shell part and the soft suture seat part. With this self expanding suture seat, following experiments were done.
1.Change of outer diameter was measured before and after dipping under water for 5 minutes. The larger seat was enlarged from 17.2 +/-0.2 to 17.5 +/-0.2 mm.
2.Shape change of the self expanding suture seat was examined. A necessary power was measured to compress 1 mm of the outer diameter of the self expanding suture seat. Following water dipping, the large suture seat needed from 50.8 +/- 9.0 gram to 124.8 +/-70.1 gram.
4)Ten of pigs were used to examine the following features. The self expanding suture seat was implanted into the descending aorta of these pigs. The implanted suture seats were extracted 2 to 4 hours or 7 days after implantation. All the extracted suture seats showed good expansion in the body, which suggested good feature of preventing the prosthetic valve leakage.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (21 results)

All 2005 2003 2002 Other

All Journal Article (12 results) Publications (9 results)

  • [Journal Article] 目で見るシリースーリハ医が知っておきたい術式のポイント 心臓外科弁置換術2005

    • Author(s)
      本村 昇
    • Journal Title

      Journal of Clinical Rehabilitation 14(8)

      Pages: 696-700

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] (緊急を要する心臓血管外科手術のUPDATE手術適応と周術着ICU管理のポイント)感染性心内膜炎2005

    • Author(s)
      本村昇, 高本眞一
    • Journal Title

      ICUとCCU 29(8)

      Pages: 597-598

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Pitfall of surgical procedure which rehabilitation doctor should recognize ; Valve replacement.2005

    • Author(s)
      N Motomura.
    • Journal Title

      Journal of Clinical Rehabilitation 14

      Pages: 696-700

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Urgent cardiac surgery, operative indication and postoperative ICU treatment ; Endocarditis.2005

    • Author(s)
      N Motomura, S Takamoto.
    • Journal Title

      ICU and CCU 29

      Pages: 597-598

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 慢性血栓塞栓性肺高血圧症による右心不全の急性増悪に対し血栓内膜摘除術を施行し救命しえた1例2003

    • Author(s)
      北村 律, 高本 眞一, 師田哲郎, 小野 稔, 本村 昇
    • Journal Title

      Therapeutic Research 24(4)

      Pages: 567-569

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Endarterectomy for acute right cardiac failure due to pulmonary hypertension with chronic thromboembolism.2003

    • Author(s)
      T Kitamura, S Takamoto, T Morota, M Ono, N Motomura.
    • Journal Title

      Therapeutic Research 24

      Pages: 567-569

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 心臓手術後合併症としての人工弁感染2002

    • Author(s)
      本村昇, 高本眞一
    • Journal Title

      日本外科学会雑誌 103(12)

      Pages: 851-855

    • NAID

      110003890193

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 小児心臓外科領域におけるホモグラフとの適応と限界2002

    • Author(s)
      本村昇, 村上新, 高本眞一
    • Journal Title

      Annual Review 循環器

      Pages: 242-245

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 「知っておきたい200words 現代医学理解のために」 Synergetic graft2002

    • Author(s)
      本村 昇
    • Journal Title

      医学のあゆみ

      Pages: 1064-1064

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Prosthetic valve endocarditis in the complication after cardiac surgery.2002

    • Author(s)
      N Motomura, S Takamoto.
    • Journal Title

      JJS 103

      Pages: 851-855

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Indication and limitation of homograft in congenital cardiac surgery.2002

    • Author(s)
      N Motomura, A Murakami, S Takamoto.
    • Journal Title

      Annual Review in Cardiology 242-245

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Synergetic graft.2002

    • Author(s)
      N Motomura.
    • Journal Title

      Igaku no Ayumi 1064

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Saito A, et al.: "Early Valvular Obliteration of Cryopreserved Aortic Valve Allograft."Jpn J Thorac Cardiovasc Surg. 51・8. 384-386 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 小野 稔, 小塚 裕, 高本眞一: "機械的補助循環-外科医の立場から"心エコー. 4・10. 936-944 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 小塚 裕: "日本心エコー図学会第1回秋期講習会"日本心エコー図学会. 102 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kotsuka Y, et al.: "Ultrathin-wall vascular grafts for endovascular surgery"J Art Org. Vol.5. 108-112 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Motomura N, et al.: "Short-term result of aortic valve replacement with cryopreserved homograft valve in the University of Tokyo Tissue Bank"Art Org. 26(5). 449-452 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ueno K, et al.: "Cerebral metabolism of nitric oxide during retrograde cerebral perfusion"Asian Cardiovascular & Thoracic Annals. 10(3). 223-227 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kubota H, et al.: "Surgical treatment of malignant tumors of the right heart"Jpn Heart J. 43(3). 263-271 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nagamura J: "Total aortic arch aneurysm repair using a stent graft without cardiac or cerebral ischemia"Jpn J Thorac Cardiovasc Surg. 50(7). 298-301 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Miyairi T, et al.: "Open stent-grafting for aortic arch aneurysm isassociated with increased risk of paraplegia"Ann Thorac Surg. 74(1). 83-89 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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