Method for manufacturing an endovascular graft section
AssigneeTrivascular2, Inc.
InventorsMichael V. Chobotov, Patrick Stephens
Life of this patent
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Abstract
A device and method for the manufacture of medical devices, specifically, endovascular grafts, or sections thereof. Layers of fusible material are disposed upon a shape forming member and seams formed between the layers in a configuration that can produce inflatable channels in desired portions of the graft. After creation of the seams, the fusible material of the inflatable channels may be fixed while the channels are in an expanded state. A five axis robotic seam forming apparatus may be used to create the seams in the layers of fusible material.
Claims19
A method for manufacturing an endovascular graft, or section thereof, comprising:
- a. disposing a first layer of fusible material and at least one additional layer of fusible material onto a shape forming member such that at least a portion of the first and second layers is overlapped, forming an overlapped portion;
- b. selectively fusing the layers of fusible material together in a seam to form at least one inflatable channel in the overlapped portion of the first and additional layers of fusible material;
- wherein the shape forming member comprises a cylindrical mandrel, wherein the first layer and the at least one additional layer of fusible material are disposed onto the mandrel by wrapping the layers thereabout, and wherein the cylindrical mandrel comprises a first end section, a second end section and a middle section disposed between the first end section, the middle section having transverse dimension less than a transverse dimension of the first or second end sections.
A method for manufacturing an endovascular graft, or section thereof, comprising:
- a. disposing a first layer of fusible material and at least one additional layer of fusible material onto a shape forming member such that at least a portion of the first and second layers is overlapped, forming an overlapped portion;
- b. selectively fusing the layers of fusible material together in a seam to form at least one inflatable channel in the overlapped portion of the first and additional layers of fusible material;
- wherein the shape forming member comprises a cylindrical mandrel and wherein the first layer and the at least one additional layer of fusible material are disposed onto the mandrel by wrapping the layers thereabouts wherein at least two seams are formed between the at least two layers of fusible material to form at least one inflatable channel disposed between layers of fusible material, said inflatable channel capable of being expanded by internal pressure after being formed, and wherein a pressure line configured to deliver fluid is inserted between the first and second layers of fusible material, said pressure line comprising a tubular member configured to be disposed between the first and second layers of fusible material, the tubular member comprising a plurality of apertures whose cross sections increase in size distally along the tubular member.
A method for manufacturing an endovascular graft, or section thereof, comprising:
- a. disposing a first layer of fusible material and at least one additional layer of fusible material onto a shape forming member such that at least a portion of the first and second layers is overlapped, forming an overlapped portion;
- b. selectively fusing the layers of fusible material together in a seam to form at least one inflatable channel in the overlapped portion of the first and additional layers of fusible material;
- wherein the shape forming member comprises a cylindrical mandrel and wherein the first layer and the at least one additional layer of fusible material are disposed onto the mandrel by wrapping the layers thereabouts wherein at least two seams are formed between the at least two layers of fusible material to form at least one inflatable channel disposed between layers of fusible material, said inflatable channel capable of being expanded by internal pressure after being formed, further comprising sintering the endovascular graft while the at least one inflatable channel is in an expanded state.
Dependencies are inferred from the claim text.