Übersetzung für "Vascular stent" in Deutsch

The vascular stent according to claim 1, wherein the resorbable material contains one or more softening agents.

The medical implant mentioned there (as a vascular stent) is inserted into the human body by using a catheter.

The Pathak invention in particular requires an external application of force (by a balloon catheter) in order to deform the implant (a vascular stent).

The vascular stent according to claim 1, wherein adhesive layers of a material that is soluble under physiological conditions are disposed between individual layers of the resorbable material.

The vascular stent according to claim 1, wherein the thickness of the layers is about 5 to about 50 ?m.

As trousers or a trouser leg, it is used in particular for shielding an elongated metallic vascular prosthesis or stent, which frequently have a length of at least 200 mm.

The efficacy of the palladium particles contained in the first layer as temporary hydrogen storage mechanisms will now be explained on the example of a vascular stent.

The implant system according to claim 1, characterized in that the implant is a vascular support, a stent, or an orthopedic implant.

But the rate of re-occlusion (restenosis) of the arteries which were mechanically dilated and (in the majority of cases) treated with a metallic vascular support (stent) appears unacceptably high with 20-50% within 6 months.

The present invention relates to a method for the production of a body implant and to a body implant, such as, for example, a stent, a vascular aid, a stent graft, a cardiac valve frame, an occluder, a flow diverter or the like.

When the delivery system 5 or the folded stent 2, or rather the functional zone 3 is positioned in the target vascular lesion, the stent 2 is released distally by drawing the outer sleeve 6 back proximally and simultaneously pushing the pusher 11 distally.

Thus, the vascular prosthesis 20 is fastened to the inner side of the stent 21 so that after implantation of the vascular prosthesis, the stent rests between the natural cardiac valve and the bio-prosthesis and has no contact with the blood.

Here, we are able to conduct a full range of invasive diagnostic procedures as well as interventional valve and vascular dilatation, correction of heart defects, ductus arteriosus closure, and vascular embolization and stent implantation.

During the operation, the diseased aorta is either replaced with a vascular prosthesis or stabilised with a vascular support (stent).

In many cases, the vascular implants or stent/stent grafts to be introduced at such branching regions do not only have fenestrations but also side branches branching off from the main body of the vascular implant, these branches being released in the aneurysmal sac above the branching vessel and serving, for example, as a landing zone for an additional stent graft, which is implanted into the side branch and the branching vessel in order to bridge the aneurysm.

There are known delivery systems for medical devices such as vascular supporting bodies (stents).

Dilations of the aorta, or aortic aneurysms, are treated surgically with vascular stents and vascular prostheses.

For purposes of the present disclosure, the term “functional implants” comprises vascular supports, stents, or depot implants.

Shape memory alloy is used for applications such as pipes, fasteners and vascular stents.

From drug development to vascular grafts to stents that deliver active substances, numerous ideas are on the table.

In connection with percutaneous transluminal coronary angioplasty (PTCCA), which has been practiced in the last few years and has been intensively advanced systematically, the use of intravascularly expandable, non-collapsing vascular prostheses or stents, has achieved significance.

Among the techniques performed in vascular surgery are the implantation of vascular supports (stents) in constricted carotid, renal, pelvic, arm and leg arteries and the treatment of vascular bulging (aneurysms).

BACKGROUND OF THE INVENTION It is known to treat vascoconstriction (stenoses) with stents (vascular endoprostheses, vessel props) that are inserted into the stenotic area to keep the vessel lumen open.

Examples would be e.g. cardiac pacemakers, brain pacemakers for Parkinson's patients, cardiac implants, cochlear implants, retinal implants, dental implants, joint replacement implants, vascular prostheses or stents.

Elements of this type are in particular stimulation electrode lines (sometimes also referred to in short as “electrodes”) of cardiac pacemakers or shock electrode lines of implantable defibrillators, but also catheters which contain an elongate conductive structure, or also guide wires or vascular supports (stents), in which the main body itself represents the functional conductor in the meaning of the terminology of this patent application.

Thus, for example, orthopedic implants must frequently withstand high mechanical strains and vascular implants, e.g., stents, must meet very special requirements for modulus of elasticity, brittleness, and moldability depending on their design.

The magnesium alloys disclosed herein are selected so that they are in particular suitable for the production of absorbable or degradable endoprostheses and especially vascular implants or stents, respectively.

The vascular implants or stents are cut, by using lasers, from tubes which consist of one of the alloys described herein.

The vascular implants or stents are cut using lasers from tubes which consist of an alloy according to the present invention.

The magnesium alloys according to the present invention are in particular suitable for the production of absorbable or degradable endoprostheses and especially vascular implants or stents, respectively.

In turn, among these stents are the vascular implants or stents for blood vessels or more generally for the cardiovascular system are preferred.

Tubes for the production of vascular implants or stents exhibit small diameters of typical below 3.0 mm.