A woven prosthesis, such as a woven vascular graft, woven from warp and weft yarns. Velour warp yarns forming the prosthesis are selectively incorporated into a base layer of the prosthesis so as to provide a bulbous section without compromising the porosity of the prosthesis.

A woven prosthesis, such as a woven vascular graft, woven from warp and weft yarns. Velour warp yarns forming the prosthesis are selectively incorporated into a base layer of the prosthesis so as to provide a bulbous section without compromising the porosity of the prosthesis.

The present disclosure provides a method for manufacturing a preform made of reinforcement fibers woven in a longitudinal direction. The preform is impregnated with resin in order to form an elongated element having a variable transverse cross-section. In one form, the method includes the step of simultaneously including a reduction (or increase) in width and an increase (or reduction) in height. The variable cross-section includes, along the length thereof, a consistent number (c) of continuous warp threads arranged in layers. The method for reducing width includes carrying out a change in weave, adding additional weft threads, and simultaneously drawing the teeth of the longitudinal beater reed closer together so as to increase the number of layers.

The present disclosure provides a method for manufacturing a preform made of reinforcement fibers woven in a longitudinal direction. The preform is impregnated with resin in order to form an elongated element having a variable transverse cross-section. In one form, the method includes the step of simultaneously including a reduction (or increase) in width and an increase (or reduction) in height. The variable cross-section includes, along the length thereof, a consistent number (c) of continuous warp threads arranged in layers. The method for reducing width includes carrying out a change in weave, adding additional weft threads, and simultaneously drawing the teeth of the longitudinal beater reed closer together so as to increase the number of layers.

A belt webbing for a safety belt device of a motor vehicle, the belt webbing being wider in a first section than in a second section relative to its longitudinal direction.

A woven fabric includes a first constituent yarn having an optical fiber yarn and a non-light guiding yarn and a second constituent yarn having a non-light guiding yarn. The woven fabric has a first region in which the first and second constituent yarns are woven in one layer and a second region which is positioned adjacent to the first region and in which the first and second constituent yarns and are woven in two or more separable layers. The woven fabric has an optical fiber layer and a back protecting layer as the separable layers. The optical fiber layer is a layer formed of the optical fiber yarns. The back protecting layer is a layer in which the non-light guiding yarn of the first constituent yarn and the non-light guiding yarn of the second constituent yarn are woven. Further, the woven fabric can further comprise a front protecting layer.

A tubular woven implantable graft having a tapered section is provided. The graft includes a first diameter and a second diameter and has a generally constant number of warp yarns per inch adjacent both the first diameter and the second diameter. A method for producing an implantable woven graft is also provided. The method includes weaving a first section having a first diameter and a tapered diameter tapering from the first diameter to a second diameter. During weaving of the tapered section a number of warp yarns are dropped from the weave and compressive forces are applied to the fabric to narrow the width of the fabric.

A tubular woven implantable graft having a tapered section is provided. The graft includes a first diameter and a second diameter and has a generally constant number of warp yarns per inch adjacent both the first diameter and the second diameter. A method for producing an implantable woven graft is also provided. The method includes weaving a first section having a first diameter and a tapered diameter tapering from the first diameter to a second diameter. During weaving of the tapered section a number of warp yarns are dropped from the weave and compressive forces are applied to the fabric to narrow the width of the fabric.

Woven material having tapered portions and altering the weave pattern and/or material construction in the tapered portion. The woven material includes a first width portion comprising a first weave pattern formed in a plurality of layers of warp threads. The plurality of layers of warp threads include two distinct outer columns of warp threads, and inner columns of warp threads positioned between the two distinct outer columns. The woven material may also include a tapered width portion formed adjacent the uniform portion. The tapered portion includes the first weave pattern formed in the plurality of layers of warp threads of the inner columns of warp threads, and a second weave pattern formed in at least a portion of the plurality of layers of warp threads of the two distinct outer columns of warp threads. The second weave pattern may be distinct from the first weave pattern.

Woven material having tapered portions and altering the weave pattern and/or material construction in the tapered portion. The woven material includes a first width portion comprising a first weave pattern formed in a plurality of layers of warp threads. The plurality of layers of warp threads include two distinct outer columns of warp threads, and inner columns of warp threads positioned between the two distinct outer columns. The woven material may also include a tapered width portion formed adjacent the uniform portion. The tapered portion includes the first weave pattern formed in the plurality of layers of warp threads of the inner columns of warp threads, and a second weave pattern formed in at least a portion of the plurality of layers of warp threads of the two distinct outer columns of warp threads. The second weave pattern may be distinct from the first weave pattern.