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US 2017/0319326 A1Published application
Active monitoring pressure sensitive vascular graft
AssigneeRegents of the University of Minnesota
InventorsMichael Rosenberg, Sean Lester Moen, Jafar Golzarian, Victor Barocas
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Abstract
A vascular graft includes deformable sleeves that include an electrical component. The electrical component can be variable-resistance or piezoelectric, in embodiments, such that deformation of the sleeves due to pressure changes create or modify an electrical signal. A transponder can then transmit information relating to the pressure inside and outside of the vascular graft.
Claims20
A vascular graft comprising:
- a support lattice defining an enclosed flowpath;
- an inner sleeve disposed along a radially inner portion of the support lattice, the inner sleeve comprising a deformable material that produces an electrical signal indicative of a level of deformation;
- an outer sleeve disposed along a radially outer portion of the support lattice, the outer sleeve comprising a deformable material that produces an electrical signal indicative of a level of deformation;
- and
- a transponder electronically coupled to the inner sleeve and the outer sleeve and configured to transmit a signal corresponding to the level of deformation of the inner sleeve and the level of deformation of the outer sleeve.
2 more elements
A method of monitoring pressure adjacent to a vascular graft, the method comprising:
- positioning the vascular graft adjacent to an aneurysm, the vascular graft comprising:
- a support lattice defining an enclosed flowpath;
- an inner sleeve disposed along a radially inner portion of the support lattice, the inner sleeve comprising a deformable material that produces an electrical signal indicative of a level of deformation;
- an outer sleeve disposed along a radially outer portion of the support lattice, the outer sleeve comprising a deformable material that produces an electrical signal indicative of a level of deformation;
- and
- a transponder electronically coupled to the inner sleeve and the outer sleeve;
- measuring a level of deflection of the inner sleeve and a level of deflection of the outer sleeve;
- and
- transmitting a signal corresponding to the level of deformation of the inner sleeve and the level of deformation of the outer sleeve from the transponder.
6 more elements
Dependencies are inferred from the claim text.