The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2025
Filed:
Oct. 06, 2023
Applicant:
Seshadri Raju, Jackson, MS (US);
Inventor:
Seshadri Raju, Jackson, MS (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/82 (2013.01); A61F 2/06 (2013.01); A61F 2/07 (2013.01); A61F 2/852 (2013.01); A61F 2/958 (2013.01); A61F 2/844 (2013.01); A61F 2/90 (2013.01);
U.S. Cl.
CPC ...
A61F 2/07 (2013.01); A61F 2/06 (2013.01); A61F 2/82 (2013.01); A61F 2/852 (2013.01); A61F 2/958 (2013.01); A61F 2002/826 (2013.01); A61F 2/844 (2013.01); A61F 2/90 (2013.01); A61F 2002/9583 (2013.01); A61F 2250/0039 (2013.01);
Abstract
The invention includes an improved flow graft. The graft has a portion where the radius r expands with length L over the portion, so that r/L is a constant in that portion, where n≥4.0, or 1<n<4. the graft may have a beginning section that has constant diameter. The invention also includes a method of designing such an expanding graft to suit the application, such as in the venous system, the arterial system, or for dialysis. The invention also includes near constant conductance stents stacks where each stent in the stack has a radius r that grows with length, so that R/L is constant where n≥4.