Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-01-26
2011-11-01
Gupta, Yogendra (Department: 1744)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S304100, C156S304200, C623S002100, C623S002360, C623S002380, C623S002410
Reexamination Certificate
active
08048255
ABSTRACT:
An implantable annuloplasty suture guide is intended to lie against at least a portion of an annulus surrounding a human heart. The implantable annuloplasty suture guide is made of an elongated ribbon of braided, heat setable material. The braided, heat-setable material is heat-set in a curved lengthwise configuration corresponding to at least a portion of the annulus of the human heart valve. A method of making an implantable annuloplasty suture guide configured to lie against at least a portion of an annulus defined by tissue surrounding a human heart. The method includes the steps of providing an elongate biocompatible ribbon comprising a braided, heat setable material. A fixture is provided, with the fixture comprising a heat conducting material defining an elongate cavity having a curved length-wise configuration corresponding to at least a portion of the annulus defined by the tissue surrounding the human heart. The elongate biocompatible ribbon is placed in the cavity and the fixture is heated to provide a select temperature for a select time in the cavity, the select temperature and the select time being sufficient to heat-set the elongate biocompatible ribbon in the curved length-wise configuration.
REFERENCES:
patent: 5674279 (1997-10-01), Wright
patent: 2006/0272751 (2006-12-01), Kato
patent: 2007/0067028 (2007-03-01), Wright
Bex and Lecompte (1986) J. Cardiac Surg., 1:151-159, “Tricuspid Valve Repair Using a Flexible Linear Reducer”.
Gupta Yogendra
Medtronic Inc.
Robitaille John
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