Vascular prosthesis with side branches
Inventors
Walther, Michael • Klein, Karsten • Merz, Juergen • Ulmer, Jan
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-10952840-B2
Publication Date
2021-03-23
Expiration Date
Abstract
The present invention relates a vascular prosthesis for a blood vessel of a patient, which has the following: a hollow-cylindrical main body with a main lumen extending therein, an also a multiplicity of stent rings, which are not connected to one another, are arranged spaced apart one behind the other in the longitudinal direction of the vascular prosthesis and running around in a meandering formation. The vascular prosthesis also has four side branches, which extend distally into the main lumen from fenestrations in the prosthesis material lying between the stent rings.
Core Innovation
The invention provides a vascular prosthesis for a blood vessel of a patient having a hollow-cylindrical main body with a longitudinal axis (L), a proximal opening and a distal opening, and a main lumen extending between the proximal opening and the distal opening. The main body comprises a proximal end portion, a middle portion, and a distal end portion, where the proximal end portion and the distal end portion taper in diameter towards the middle portion, and the middle portion has a smaller diameter d2 in comparison with d1 and d3.
A plurality of stent rings are arranged spaced apart one behind the other in the longitudinal direction and running around in a meandering formation, with the stent rings respectively having ogives and webs connecting the ogives. The stent rings are attached to prosthesis material, are not directly connected to one another, and the prosthesis material supports the stent rings and provides a structure in which fenestrations lie between the stent rings.
Four side branches extend from fenestrations in the prosthesis material lying between the stent rings exclusively into and within the main lumen towards the distal opening, such that no parts of the side branches extend outside the lumen. Each side branch has a first side-branch opening and a second side-branch opening with a side-branch lumen extending between them, and the first side-branch opening is firmly attached to the prosthesis material by way of a fenestration for the formation of a side-branch attachment.
Claims Coverage
Independent claim clm-00001 defines 3 inventive features covering a vascular prosthesis architecture with a hollow-cylindrical main body, spaced meandering stent rings with ogives and webs, and four intraluminal side branches extending only within the main lumen from fenestrations between the stent rings.
Hollow-cylindrical main body with tapering portions
A hollow-cylindrical main body with a longitudinal axis (L), a proximal opening and a distal opening, and a main lumen extending between the proximal opening and the distal opening, wherein the main body comprises a proximal end portion, a middle portion, and a distal end portion, each having diameters d1, d2, and d3, and wherein the proximal end portion and the distal end portion taper in diameter towards the middle portion, with the middle portion having a smaller diameter d2 in comparison with d1 and d3.
Spaced meandering stent rings with ogives and webs
A plurality of stent rings arranged spaced apart one behind the other in the longitudinal direction and running around in a meandering formation, the stent rings respectively having ogives and webs connecting the ogives, attached to prosthesis material, and not directly connected to one another.
Four intraluminal side branches from fenestrations between stent rings
Four side branches extending from fenestrations in the prosthesis material lying between the stent rings exclusively into and within the main lumen towards the distal opening such that no parts of the side branches extend outside the lumen, each side branch having a first side-branch opening and a second side-branch opening and a side-branch lumen extending between them, with the first side-branch opening firmly attached to the prosthesis material by way of a fenestration for the formation of a side-branch attachment, and the four side branches arranged in the middle portion.
Overall, the claims cover a vascular prosthesis combining a tapering hollow-cylindrical main body, spaced meandering stent rings with ogives and webs, and four side branches arranged in a middle portion and extending only within the main lumen from fenestrations between stent rings.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
Interested in licensing this patent?