초록 ▼

A system and apparatus are disclosed for preparing tubular prostheses from a sheet of tissue and inner and outer helical frame components. The tissue is wrapped around the inner frame component over an assembly mandrel. The outer helical frame component is then transferred from an elongate support o

A system and apparatus are disclosed for preparing tubular prostheses from a sheet of tissue and inner and outer helical frame components. The tissue is wrapped around the inner frame component over an assembly mandrel. The outer helical frame component is then transferred from an elongate support over a lead screw, onto the assembly mandrel by rotating the assembly mandrel and lead screw in a manner which positions the outer helical frame component in an appropriate manner. Optionally, the mandrel is collapsed to facilitate removal of the completed tubular prosthesis.

대표청구항 ▼

[ What is claimed is:] [20.] A method for forming a tubular prosthesis, said method comprising:providing a sheet of tissue;wrapping the sheet of tissue over a tubular inner frame;axially aligning the wrapped tubular inner frame with a helical outer frame component;coupling an end of the helical oute

[ What is claimed is:] [20.] A method for forming a tubular prosthesis, said method comprising:providing a sheet of tissue;wrapping the sheet of tissue over a tubular inner frame;axially aligning the wrapped tubular inner frame with a helical outer frame component;coupling an end of the helical outer frame component to the wrapped tubular inner frame; androtating the tissue-wrapped inner frame to draw the helical outer frame component over an outer surface of said tissue-wrapped inner frame, wherein the outer frame component forms an outer surface of the prosthesis.