[특허]Method of manufacturing a prosthetic valve

[미국특허] Method of manufacturing a prosthetic valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-002/24
출원번호	US-0278813 (2011-10-21)
등록번호	US-9486312 (2016-11-08)
우선권정보	EP-96402929 (1996-12-31)
발명자 / 주소	Letac, Brice Cribier, Alain
출원인 / 주소	Edwards Lifesciences PVT, Inc.
대리인 / 주소	Hauser, David L.
인용정보	피인용 횟수 : 0 인용 특허 : 152

초록 ▼

A prosthetic valve for implantation in a stenosed aortic valve. The prosthetic valve includes a metallic frame formed with intersecting bars having diameters in the range of 0.1 to 0.6 mm. The frame is radially collapsible for advancement into a native aortic valve using a catheterization technique. The frame is radially expandable for embedding the frame within the native aortic valve. The frame has sufficient radial strength to resist the recoil forces of the native aortic valve after implantation. The prosthetic valve includes a collapsible valvular structure made with pericardium. The prosthetic valve also includes an internal cover which forms a substantially impermeable tubular sleeve. The internal cover preferably extends between a lower extremity of the frame and the valvular structure. The internal cover is preferably sutured to the valvular structure. The valvular structure and internal cover are sutured to the bars of the frame.

대표청구항 ▼

1. A method of manufacturing a prosthetic heart valve assembly for implantation in a stenosed aortic valve, comprising: forming a metallic frame having upper and lower extremities, the frame comprising intersecting bars having diameters in the range of 0.1 to 0.6 mm, the frame being collapsible to a compressed external diameter suitable for advancement through a patient's vasculature and into a stenosed aortic valve using a catheterization technique, the frame being expandable for embedding the frame within the stenosed aortic valve, the frame being capable of resisting the recoil forces of the stenosed aortic valve, the frame forming zig-zag lines along the upper and lower extremities;constructing a valvular structure from pericardial tissue, the valvular structure adapted for permitting blood flow in one direction;constructing an internal cover from pericardial tissue, the internal cover forming a sleeve;suturing an upper end of the internal cover to the valvular structure;suturing the valvular structure to the intersecting bars of the frame while the frame is in an expanded state, the valvular structure sutured to the frame with stitches extending around the bars of the frame between the upper and lower extremities;suturing a lower portion of the internal cover to the lower extremity of the frame along the zig-zag line; andreinforcing the fastening of the internal cover to the frame by suturing the internal cover to the intersecting bars of the frame at various points along an internal surface of the frame, the internal cover positioned between the lower extremity of the frame and the valvular structure such that the internal cover covers the internal surface only along an inferior portion of the frame;wherein the internal cover is configured to prevent the passage of blood through spaces between the intersecting bars of the frame below the valvular structure. 2. The method of manufacture of claim 1, wherein the frame is collapsible to an external diameter suitable for introduction through an 18 French arterial introducer. 3. The method of manufacture of claim 1, wherein the frame has a compressed external diameter suitable for introduction through a 16 French arterial introducer. 4. The method of manufacture of claim 1, wherein the frame has a compressed external diameter suitable for introduction through a 14 French arterial introducer. 5. The method of manufacture of claim 1, wherein the frame has an expanded diameter of about 20 to 25 mm. 6. The method of manufacture of claim 1, further comprising the step of securing strips of stiff material to the valvular structure, the strips extending substantially along a longitudinal axis for inducing a patterned movement of the valvular structure. 7. The method of manufacture of claim 1, wherein the frame is formed with a generally concave profile. 8. The method of manufacture of claim 1, wherein a wall of the frame is constructed to have a grate structure adapted for supporting the valvular structure and behaving as a scaffold for pushing against the native aortic valve. 9. The method of manufacture of claim 1, wherein the internal cover is wrapped around the lower extremity of the frame and secured to an external wall of the frame to form an external cover. 10. The method of manufacture of claim 1, wherein the internal cover strengthens securement of the valvular structure to the frame. 11. The method of manufacture of claim 1, further comprising coating the valvular structure with a substance having anti-thrombotic properties.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Method of manufacturing a prosthetic valve 원문보기

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[미국특허] Method of manufacturing a prosthetic valve 원문보기

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