Radiopaque coating for endovascular devices
AssigneePhenox GmbH
InventorsSimon SCHLAGKAMP, Jörg ASCHERFELD, Volker TRÖSKEN
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Abstract
An endovascular device made of pseudoelastic alloys including a selective coating of radiopaque materials, the coating includes only regions or sections of the endovascular device which, in the radially maximally loaded state, have an elongation of less than 5% compared to the radially unloaded state of the device. Such a coating enables maximum X-ray visibility of the endovascular device with minimal impairment of the mechanical properties.
Claims17
An endovascular device made of pseudoelastic alloys comprising a selective coating of radiopaque materials, wherein the coating comprises only regions or sections of the endovascular device which, in the radially maximally loaded state of the device, have an elongation of less than 5% compared with the radially unloaded state of the device.
A method of selectively coating an endovascular device made of pseudoelastic alloys comprising the following steps:
- (A) providing an endovascular device made of pseudoelastic alloys in the radially unloaded state;
- (D) compressing the endovascular device to the radially maximally loaded state by radial loading of the device;
- (E) determine the regions of the endovascular device that have an elongation of at least 5% in the radially maximally loaded state compared to the radially unloaded expanded state;
- and
- (F) coating the endovascular device except for the regions determined in step (E).
A method of selectively coating an endovascular device made of pseudoelastic alloys comprising the following steps:
- (A′) providing an endovascular device made of pseudoelastic alloys in the radially unloaded state;
- (D′) compressing the endovascular device to the radially maximally loaded state by radial loading of the device;
- (E′) determining the regions of the endovascular device which, in the radially maximally loaded state, have an elongation of at least 5% compared with the radially unloaded expanded state, and then determining the sections of the endovascular device which comprise the corresponding regions of defined elongation;
- and
- (F′) coating the endovascular device with the exception of the sections determined in step (E′).
Dependencies are inferred from the claim text.