Multicenter evaluation of the Strecker tantalum stent for acute coronary occlusion after angioplasty

Hamm, Christian W.; Beythien, C.; Sievert, Horst; Langer, Alois; Utech, A; Terres, Wolfram; Reifart, Nicolaus

doi:10.1016/0002-8703(95)90262-7

Cited by 13 publications

(5 citation statements)

References 45 publications

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“…Appreciation of the arterial lumen within the stent is possible despite the radiopacity of the stent struts. Radiographic visualization is thus superior to that of Palmaz-Schatz and Gianturco-Roubin stents, without obscuring the arterial lumen as may occur with tantalum stents [2,8]. A side branch may be entered through the gaps between the stent segments.…”

Section: Discussionmentioning

confidence: 98%

Initial clinical experience with the new EBI (BARD-XT) flexible coronary stent: Acute results and follow-up

Sievert

Rohde

Ensslen

et al. 1998

Cathet. Cardiovasc. Diagn.

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Section: Discussionmentioning

confidence: 98%

Initial clinical experience with the new EBI (BARD-XT) flexible coronary stent: Acute results and follow-up

Sievert

Rohde

Ensslen

et al. 1998

Cathet. Cardiovasc. Diagn.

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“…Wires can be formed into stents by coiling, braiding or knitting. Hamm et al successfully implanted the Strecker stents with a knitting structure into the coronary arteries of 64 patients [12]. Polymers were extruded and drawn into monofilament to get a higher mechanical property, which is suitable for the wire-based fabrication to make stents [13].…”

Section: Introductionmentioning

confidence: 99%

In Vitro Degradation Behaviours of PDO Monofilament and Its Intravascular Stents with Braided Structure

Wang¹,

Zhang²

2016

Autex Research Journal

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Biodegradable intravascular stent has attracted more and more focus in recent years as an effective solution for angiostenosis. Ideal stents were expected to exhibit sufficient radial force to support the vascular wall, while suitable flexibility for the angioplasty. After vascular remodeling, stents should be degraded into small molecular and be eliminated from human body, causing no potential risk. In this paper, poly-p-dioxanone (PDO) monofilament was braided into net structure with four different braiding density, two of which exhibited sufficient radial force larger than 30 kPa, and three of which showed the bending rigidity within 11.7–88.1 N•mm2. The degradation behaviors of monofilaments and stents have been observed for 16 weeks. The findings obtained indicate that degradation first occurred in morphology region, which induced temporary increase of crystallinity, monofilament bending rigidity and stent mechanical properties. During this period, monofilament tends to be hard and brittle and lost its tensile properties. Then the crystalline region was degraded and stent mechanical properties decreased. All the results reveal that the PDO intravascular stents with braided structure were able to afford at least 10 weeks of sufficient support to the vascular wall.

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“…These cardiovascular devices are mainly made of 316L stainless steel or nitinol (NITINOL; an acronym for Nickel Titanium Naval Ordnance Laboratory is a family of intermetallic materials, which contain a nearly equal mixture of nickel and titanium; other elements can be added to adjust or 'tune' the material properties). However, a few tantalum (Ta) cardiovascular prostheses have also been used for biomedical applications [1][2][3] and recently Strecker et al used flexible Ta endovascular prosthesis for popliteal artery stenting [4] concluding that these kinds of stents can be a valuable adjunct to popliteal artery angioplasty. These stents are widely used in the treatment of atherosclerotic coronary artery disease.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Treatments on Anodic Oxide Film Growth and Electrochemical Properties of Tantalum used for Biomedical Applications

Silva¹,

Silva²,

Rondot

2006

J Biomater Appl

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Self-expandable nitinol (nickel-titanium) alloys and 316L stainless steel are the most commonly used materials in the production of coronary stents. However, tantalum (Ta) has already been used to make stents for endovascular surgery and may constitute an alternative to other materials because of its better electrochemical performance, namely its higher corrosion resistance, as well as its radio-opacity. The characterization of wet polished, chemically polished, wet polished anodized, and chemically polished anodized Ta electrodes has been performed in a 0.15 M NaCl solution (simulated body fluid) using U corr ¼ f(t) measurements, anodic polarizations, capacity measurements, anodic oxidations, and atomic force microscopy (AFM) imaging. Anodic polarization curves have shown that the abnormal current density peak with a maximum value around 1.65 V (critical applied potential, U c ) disappeared for the anodized electrodes indicating a probable relationship *Author to whom correspondence should be addressed. E-mail: ras@isep.ipp.pt between the surface states and the film growth. These results are confirmed by capacity measurements. The behavior of wet polished and chemically polished electrodes during anodic oxidations seemingly indicated that for these particular treatments the film growth is different. The AFM images and roughness measurements have shown that chemical polishing produced smoother electrodes, a fact probably related to the differences in film growth. JOURNAL OF BIOMATERIALS APPLICATIONS

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Multicenter evaluation of the Strecker tantalum stent for acute coronary occlusion after angioplasty

Cited by 13 publications

References 45 publications

Initial clinical experience with the new EBI (BARD-XT) flexible coronary stent: Acute results and follow-up

Initial clinical experience with the new EBI (BARD-XT) flexible coronary stent: Acute results and follow-up

In Vitro Degradation Behaviours of PDO Monofilament and Its Intravascular Stents with Braided Structure

Effect of Surface Treatments on Anodic Oxide Film Growth and Electrochemical Properties of Tantalum used for Biomedical Applications

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