System and method for braiding a patient-customized stent
The disclosure relates to a system for braiding a patient-specific adapted stent. The system includes at least one set with multiple braiding sleeves and a base carrier for receiving at least two braiding sleeves of the set, wherein the braiding sleeves each have an inner contour adapted to the outer contour of the base carrier, so that multiple braiding sleeves can be arranged in any order on the base carrier, in particular slid in any order onto the base carrier, to form a braiding mandrel, and wherein at least two braiding sleeves of the set have different outer contours from each another. Furthermore, the invention relates to a method for braiding a patient-specific adapted stent.
1 . A system configured to braid a patient-specific adapted stent, the system comprising:
at least one set with multiple braiding sleeves and a base carrier configured to receive at least two braiding sleeves of the at least one set, wherein each braiding sleeve has an inner contour adapted to an outer contour of the base carrier, so that the multiple braiding sleeves are adapted to be arranged in any order on the base carrier to form a braiding mandrel, and wherein the at least two braiding sleeves of the at least one set have different outer contours from each another.
2 . The system according to claim 1 , wherein the at least two braiding sleeves of the at least one set have different lengths from each other.
3 . The system according to claim 1 , wherein the base carrier has at least one cylindrical carrier section and each braiding sleeve has a through opening so that the multiple braiding sleeves are adapted to be slid onto the carrier section with a loose fit.
4 . The system according to claim 3 , wherein the base carrier has, at a first longitudinal end of the carrier section, a first stop for the multiple braiding sleeves and, at a second longitudinal end of the carrier section, an attachment section configured to receive a removable second stop.
5 . The system according to claim 4 , wherein a distance between the first stop and the removable second stop is variable such that the multiple braiding sleeves slid onto the carrier section are adapted to be fixed longitudinal-axially between the first stop and the removable second stop.
6 . The system according to claim 4 , wherein the attachment section has an external thread and the second stop is formed by a threaded nut.
7 . A method for braiding a patient-specific adapted stent, the method comprising:
selecting braiding sleeves from a set, wherein at least two braiding sleeves of the set have different outer contours from each other;
arranging the braiding sleeves on a base carrier to form a braiding mandrel, wherein the braiding sleeves directly abut each other; and
braiding the stent from one or more filaments on the braiding mandrel.
8 . The method according to claim 7 , wherein selecting braiding sleeves comprises:
detecting an inner contour of a blood vessel to be treated with the stent; and
targeting selection of the braiding sleeves which in combination form an outer contour adapted to the inner contour of the blood vessel.
9 . The method according to claim 7 , wherein selecting braiding sleeves comprises selecting the at least two braiding sleeves.
10 . The method according to claim 7 , wherein braiding the stent comprises varying a braiding angle to establish a uniform porosity over an entire length of the stent.
11 . The method according to claim 7 , wherein braiding the stent comprises reversing a braiding direction of the filaments to form loops at a longitudinal end of the stent.
12 . The method according to claim 7 , wherein the stent is braided from the filaments comprising a radiopaque core material and a sheath material of a shape memory alloy.
13 . The method according to claim 7 , wherein the at least two braiding sleeves of the set have different lengths from each other.
14 . The method according to claim 7 , wherein at least one braiding sleeve of the set has an outer contour or length produced on a basis of image data of a blood vessel of an individual patient.
15 . The method according to claim 7 , wherein the base carrier has at least one cylindrical carrier section and each braiding sleeve has a through opening so that the braiding sleeves are adapted to be slid onto the carrier section with a loose fit.
16 . A system configured to braid a patient-specific adapted stent, the system comprising:
at least one set with multiple braiding sleeves and a base carrier configured to receive at least two braiding sleeves of the at least one set, wherein each braiding sleeve has an inner contour adapted to an outer contour of the base carrier, so that the multiple braiding sleeves are adapted to be arranged in any order on the base carrier to form a braiding mandrel, wherein the at least two braiding sleeves of the at least one set have different outer contours from each another, and wherein the base carrier has at least one cylindrical carrier section and each braiding sleeve has a through opening so that the multiple braiding sleeves are adapted to be slid onto the carrier section with a loose fit.
17 . The system according to claim 16 , wherein the base carrier has, at a first longitudinal end of the carrier section, a first stop for the multiple braiding sleeves and, at a second longitudinal end of the carrier section, an attachment section configured to receive a removable second stop.
18 . The system according to claim 17 , wherein a distance between the first stop and the removable second stop is variable such that the multiple braiding sleeves slid onto the carrier section are adapted to be fixed longitudinal-axially between the first stop and the removable second stop.
19 . The system according to claim 17 , wherein the attachment section has an external thread and the removable second stop is formed by a threaded nut.