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    3.
    发明专利
    未知

    公开(公告)号：DE69010890D1

    公开(公告)日：1994-08-25

    申请号：DE69010890

    申请日：1990-02-01

    Applicant: BAXTER INT

    Inventor： LAM HUNG ,  NGUYEN THAN ,  CARPENTIER ALAIN

    IPC: A61F2/00 ,  A61F2/24

    Abstract: An annuloplasty ring prosthesis has a flexible, annular body including one or more defined lengths (16,30), which are more rigid than the remainder of the body. The flexible body increases in flexibility about its circumference in a direction away from the, or each rigid, defined length and is formed from a plurality of individual wire elements. The elements may be wire strands (14,24) secured in a bundle, positioned in respective lumens (26) of a multiple lumen enclosure (28), or may be layers (38) of one or more wire bands wrapped on one another.

    EXPANDABLE ANNULOPLASTY RING
    5.
    发明专利
    EXPANDABLE ANNULOPLASTY RING 未知

    公开(公告)号：CA2297914C

    公开(公告)日：2006-10-03

    申请号：CA2297914

    申请日：1998-07-22

    Applicant: BAXTER INT

    Inventor： CARPENTIER ALAIN ,  NGUYEN THAN ,  LAM HUNG ,  CARPENTIER ALEXANDRE ,  HUYNH VAN LE ,  CUNANAN CRYSTAL

    IPC: A61F2/24 ,  A61F2/00

    Abstract: An expandable annuloplasty ring which may either expand spontaneously, in situ, as the patient grows or be expanded by surgical intervention by balloon dilatation. The distensible annuloplasty ring of the invention may be usable in pediatric patients whose growth, subsequent to surgical implantation of the ring, will necessitate subsequent enlargement of the ring to accommodate growth of the annulus. The ring may include relatively expandable segments to enable the enlargement thereof. The ring segments may include engaging teeth which cooperate with notches or slots formed in the tubes to provide some resistance to ring distention, while preventing collapse of the ring in the opposite direction. The teeth may be of different sizes or shapes to regulate the amount of force needed to expand the ring at different stages of the patient 's growth. Alternatively, the adjustable ring includes a solid core of non-elastic material which plastically retains its shape upon natura l expansion of the annulus, or after surgical expansion. In one embodiment, segments are coupled together with a discontinuity around the ri ng periphery. Pivot regions are provided between adjacent segments that, along with the discontinuity, enable the ring to expand upon annulus growth. The discontinuity may be positioned along the anterior side of the ring or around the posterior side. A further versio n makes use of telescoped segments with no discontinuity. The segments are coupled together with tubular sheaths, and expand without decoupling. A fabric covering may be omitted.

    METHODS FOR TREATING IMPLANTABLE BIOLOGICAL TISSUES TO MITIGATE THE CALCIFICATION THEREOF AND BIOPROSTHETIC ARTICLES TREATED BY SUCH METHODS
    6.
    发明专利
    METHODS FOR TREATING IMPLANTABLE BIOLOGICAL TISSUES TO MITIGATE THE CALCIFICATION THEREOF AND BIOPROSTHETIC ARTICLES TREATED BY SUCH METHODS 未知

    公开(公告)号：CA2196165C

    公开(公告)日：2004-06-08

    申请号：CA2196165

    申请日：1995-07-25

    Applicant: BAXTER INT

    Inventor： CARPENTIER SOPHIE ,  CARPENTIER ALAIN

    IPC: A61L27/00 ,  A61L27/36

    Abstract: A method for treating fixed biological tissue inhibits calcification of the biological tissue following implantation thereof in a mammalian body. The method includes placing the biological tissue in contact with glutaraldehyde and then heating the glutaraldehyde. Alternatively, methods other than heating (e. g., chemical or mechanical means) , for effecting polymerization of the glutaraldehyde may also be utilized. Alternatively, the tissue may be heat treated prior to fixing thereof. Alternatively, methods other than glutaraldehyde may also be used far fixing the tissue. The biological tissue may be so treated at any time prior to implantation thereof in a mammalian body.

    SELECTIVELY FLEXIBLE ANNULOPLASTY RING
    7.
    发明专利
    SELECTIVELY FLEXIBLE ANNULOPLASTY RING 未知

    公开(公告)号：CA2330419C

    公开(公告)日：2001-11-27

    申请号：CA2330419

    申请日：1990-02-01

    Applicant: BAXTER INT

    Inventor： LAM HUNG L ,  NGUYEN THAN ,  CARPENTIER ALAIN

    IPC: A61F2/00 ,  A61F2/24

    Abstract: An annuloplasty ring prosthesis 10 which is formed from a selectively flexible body element 14 having at least one defined length 16 about its circumference which is substantially rigid. The remainder of the body element gradually increases in flexibility. The body element 14 is a substantially annular shaped body element which is designed to be sutured to the annulus of a heart valve. The body element 14 is formed from a non-corrosive, anti-magnetic material, and is wrapped in a material 20 through which sutures can be drawn to suture the prosthesis to the heart valve annulus.

    SELECTIVELY FLEXIBLE ANNULOPLASTY RING
    10.
    发明专利
    SELECTIVELY FLEXIBLE ANNULOPLASTY RING 未知

    公开(公告)号：CA2049971A1

    公开(公告)日：1990-08-14

    申请号：CA2049971

    申请日：1990-02-01

    Applicant: BAXTER INT

    Inventor： LAM HUNG L ,  NGUYEN THAN ,  CARPENTIER ALAIN

    IPC: A61F2/00 ,  A61F2/24

    Abstract: An annuloplasty ring prosthesis 10 which is formed from a selectively flexible body element 14 having at least one defined length 16 about its circumference which is substantially rigid. The remainder of the body element gradually increases in flexibility. The body element 14 is a substantially annular shaped body element which is designed to be sutured to the annulus of a heart valve. The body element 14 is formed from a non-corrosive, anti-magnetic material, and is wrapped in a material 20 through which sutures can be drawn to suture the prosthesis to the start valve annulus.

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