Described are stent grafts with at least on branch and mandrels used to form the stent grafts. Methods of making and using them are also described.

Described are stent grafts with at least on branch and mandrels used to form the stent grafts. Methods of making and using them are also described.

A flat-head pin includes: (a) a pin shaft with a pin point; (b)a flat pin head affixed to an end of the pin shaft distal to the pin point; wherein the flat pin head is characterized by a cuboid shape, preferably a tapered cuboid shape with a plurality of transverse gripping ribs spaced a distance, s, from each other. The flat pin head is characterized by a tapered cuboid shape with a plurality of transverse gripping ribs spaced a distance, s, preferably wherein the distance s is relatively large and there are relatively few gripping ribs, such as 3-5 transverse gripping ribs.

A flat-head pin includes: (a) a pin shaft with a pin point; (b)a flat pin head affixed to an end of the pin shaft distal to the pin point; wherein the flat pin head is characterized by a cuboid shape, preferably a tapered cuboid shape with a plurality of transverse gripping ribs spaced a distance, s, from each other. The flat pin head is characterized by a tapered cuboid shape with a plurality of transverse gripping ribs spaced a distance, s, preferably wherein the distance s is relatively large and there are relatively few gripping ribs, such as 3-5 transverse gripping ribs.

A portable patchwork sewing tool kit includes: a base plate, the inner face thereof is provided with a first page and a second page which can be folded or unfolded optionally; a rotary cutting mat fixed to the first page, the rotary cutting mat comprises a bottom plate and a cutting plate pad screwed on the bottom plate through a pivot joint base to be rotated under stress; a detachable ironing mat fixed to the second page, including a core board, a cotton spreading layer covering the core board and a cotton fabric surface layer covering the cotton spreading layer, an ironing face formed outside the cotton fabric surface layer; and a plurality of pushing edges formed around the cutting plate pad and spaced apart.

A portable patchwork sewing tool kit includes: a base plate, the inner face thereof is provided with a first page and a second page which can be folded or unfolded optionally; a rotary cutting mat fixed to the first page, the rotary cutting mat comprises a bottom plate and a cutting plate pad screwed on the bottom plate through a pivot joint base to be rotated under stress; a detachable ironing mat fixed to the second page, including a core board, a cotton spreading layer covering the core board and a cotton fabric surface layer covering the cotton spreading layer, an ironing face formed outside the cotton fabric surface layer; and a plurality of pushing edges formed around the cutting plate pad and spaced apart.

A portable patchwork sewing tool kit includes: a base plate, the inner face thereof is provided with a first page and a second page which can be folded or unfolded optionally; a rotary cutting mat fixed to the first page, the rotary cutting mat comprises a bottom plate and a cutting plate pad screwed on the bottom plate through a pivot joint base to be rotated under stress; a detachable ironing mat fixed to the second page, including a core board, a cotton spreading layer covering the core board and a cotton fabric surface layer covering the cotton spreading layer, an ironing face formed outside the cotton fabric surface layer; and a plurality of pushing edges formed around the cutting plate pad and spaced apart.

A portable patchwork sewing tool kit includes: a base plate, the inner face thereof is provided with a first page and a second page which can be folded or unfolded optionally; a rotary cutting mat fixed to the first page, the rotary cutting mat comprises a bottom plate and a cutting plate pad screwed on the bottom plate through a pivot joint base to be rotated under stress; a detachable ironing mat fixed to the second page, including a core board, a cotton spreading layer covering the core board and a cotton fabric surface layer covering the cotton spreading layer, an ironing face formed outside the cotton fabric surface layer; and a plurality of pushing edges formed around the cutting plate pad and spaced apart.

Various examples are provided related to seamer systems and methods that can be used at the end of a sewing process to secure sewing medium in sewn material by creating a knot. Excess sewing medium can be removed after forming knot at the sewn material. A clamp can secure a portion of the sewing medium while allowing at least one element of the sewing medium to pass through the clamp. A material stabilizer can align the sewing medium to form the knot and sever the excess sewing medium after the knot is formed.

Various examples are provided related to seamer systems and methods that can be used at the end of a sewing process to secure sewing medium in sewn material by creating a knot. Excess sewing medium can be removed after forming knot at the sewn material. A clamp can secure a portion of the sewing medium while allowing at least one element of the sewing medium to pass through the clamp. A material stabilizer can align the sewing medium to form the knot and sever the excess sewing medium after the knot is formed.