Visibility of Mechanical Thrombectomy Device During Diagnostic Imaging

Abstract

An expandable mechanical device for use during a thrombectomy medical procedure having enhanced visibility during imaging. Furthermore, the configuration of the eyelet and/or strut optimizes retention of the marker in the eyelet during the medical procedure without increasing overall profile of strut.

What is claimed is: 
     
         1 . An expandable mechanical device for use during a vascular medical procedure, the device comprising:
 a strut having an outer surface and an outer diameter radial profile, a recess defined in the outer surface of the strut and extending radially inward; and   a U shape marker rivet received and secured within the recess of the strut, an overall radial profile of an assembly of the strut and the U shape marker rivet being equal or less than the outer diameter radial profile of the strut alone.   
     
     
         2 . The expandable mechanical device according to  claim 1 , wherein the recess is an annular groove or an angled recess having a wedge shape radial cross-sectional profile. 
     
     
         3 . An expandable mechanical device for use during a vascular medical procedure, the device comprising:
 a strut having an eyelet defined therein, the eyelet having tapered side walls; and   a marker rivet secured within the eyelet of the strut, wherein the tapered side walls form at least one stepped layer.   
     
     
         4 . The expandable medical device according to  claim 3 , wherein the tapered side walls form multiple stepped layers. 
     
     
         5 . An expandable mechanical device for use during a vascular medical procedure, the device comprising:
 a strut having an eyelet defined therein and a strut profile, the eyelet having an S shape; and   a complementary S shape marker rivet secured within the S shape eyelet of the strut.