X-ray visibility and corrosion resistance of niti stents using markers made of sandwich material
AssigneeAdmedes Schuessler GmbH
InventorsAlexander Hegel, Rainer Steegmuller, Bernd Schrader
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Abstract
A bodily implant, in particular a stent, for insertion or implantation into a living body, having a marker element for increasing X-ray visibility, which is at least partially insertable into a cut-out in an implant structure and which has a coated material comprising at least two layers. A corresponding method for manufacturing a marker element from a coated material, and a corresponding method for manufacturing a bodily implant, in particular a stent, having a marker element which is visible to X-rays, is disclosed.
Claims41
A bodily implant for insertion into a living body, the bodily implant comprising:
- an implant structure having a cut-out formed therein;
- and
- a marker element to increase the X-ray visibility which is at least partially insertable into the cut-out in the implant structure,
- wherein the marker element has a coated material comprising at least two layers that are each made of a material that is different than that of the implant structure and that are each tapered such that the marker element is cone-shaped, and
- wherein the first layer and the second layer each have side surfaces that contact the implant structure, the first layer and the second layer each have top and bottom surfaces, and the entire side surfaces of the first layer and the second layer are each tapered along a plane extending from the top surface of the second layer to the bottom surface of the first layer.
A bodily implant, comprising:
- an implant structure having a cut-out formed therein;
- and
- a marker element which is at least partially insertable into the cut-out in the implant structure, the marker element including a first layer and a second layer,
- wherein the first layer has an X-ray visibility greater than an X-ray visibility of the second layer,
- wherein the first layer and the second layer are each made of a material that is different than that of the implant structure and are each tapered such that the marker element is cone-shaped, and
- wherein the first layer and the second layer each have side surfaces that contact the implant structure, the first layer and the second layer each have top and bottom surfaces, and the entire side surfaces of the first layer and the second layer are each tapered along a plane extending from the top surface of the second layer to the bottom surface of the first layer.
The bodily implant according to 19, wherein the marker element further includes a third layer, the first layer is disposed between the second layer and the third layer, and the third layer has the same thickness as the second layer.
A bodily implant, comprising:
- an implant structure having a cut-out formed therein;
- and
- a marker element to increase X-ray visibility which is at least partially insertable into the cut-out in the implant structure, the marker element including a first layer and a second layer,
- wherein the first layer and the second layer are each tapered such that the marker element is cone-shaped, and
- wherein the first layer and the second layer each have side surfaces that contact the implant structure, the first layer and the second layer each have top and bottom surfaces, and the entire side surfaces of the first layer and the second layer are each tapered along a plane extending from the top surface of the second layer to the bottom surface of the first layer.
Dependencies are inferred from the claim text.