公开(公告)号：CA2194867C

公开(公告)日：2003-04-08

申请号：CA2194867

申请日：1995-07-05

Applicant: BAXTER INT

Inventor： CARPENTIER ALEXANDRE ,  CARPENTIER ALAIN F

IPC: A61F2/82 ,  A61F2/00 ,  A61F2/24

Abstract: The distensible annuloplasty ring which may be enlarged, in situ, by application of dilaroty pressure by way of a balloon or other dilating apparatus. The distensible annuloplasty ring of the invention is 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 invention includes a transluminal and/or transept al method for post-implantation enlargement of the annuloplasty ring via cathet er.

公开(公告)号：CA2297914A1

公开(公告)日：1999-02-04

申请号：CA2297914

申请日：1998-07-22

Applicant: BAXTER INT

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

IPC: A61F2/00 ,  A61F2/24

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 natural expansion of the annulus, or after surgical expansion. In one embodiment, segments are coupled together with a discontinuity around the ring 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 version 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.

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.

公开(公告)号：AU8497498A

公开(公告)日：1999-02-16

申请号：AU8497498

申请日：1998-07-22

Applicant: BAXTER INT

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

IPC: A61F2/00 ,  A61F2/24

公开(公告)号：CA2194867A1

公开(公告)日：1996-02-15

申请号：CA2194867

申请日：1995-07-05

Applicant: BAXTER INT

Inventor： CARPENTIER ALEXANDRE ,  CARPENTIER ALAIN F

IPC: A61F2/82 ,  A61F2/00 ,  A61F2/24

Abstract: The distensible annuloplasty ring which may be enlarged, in situ, by application of dilaroty pressure by way of a balloon or other dilating apparatus. The distensible annuloplasty ring of the invention is 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 invention includes a transluminal and/or transeptal method for post-implantation enlargement of the annuloplasty ring via catheter.