US20080228256A1 - Braided Flange Branch Graft for Branch Vessel - Google Patents
Braided Flange Branch Graft for Branch Vessel Download PDFInfo
- Publication number
- US20080228256A1 US20080228256A1 US11/685,368 US68536807A US2008228256A1 US 20080228256 A1 US20080228256 A1 US 20080228256A1 US 68536807 A US68536807 A US 68536807A US 2008228256 A1 US2008228256 A1 US 2008228256A1
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- United States
- Prior art keywords
- flange
- braided
- graft
- neck
- branch graft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/064—Blood vessels with special features to facilitate anastomotic coupling
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2002/061—Blood vessels provided with means for allowing access to secondary lumens
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/821—Ostial stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/06—Vascular grafts; stents
Definitions
- the present invention relates to an intra-vascular device and method. More particularly, the present invention relates to a device used to treat aneurysms where a branch connection from a main stent graft crosses the ostium of a branch vessel.
- a conventional main stent graft typically includes a radially expandable reinforcement structure, formed from a plurality of annular stent rings, and a cylindrically shaped layer of graft material defining a lumen to which the stent rings are coupled.
- Main stent grafts are well known for use in tubular shaped human vascular or other body vessel.
- Endovascular aneurysmal exclusion is a method of using a main stent graft to partially or completely isolate an aneurysmal sac from systemic blood pressure by preventing pressurized blood flow from pressurizing the interior of an aneurysm, thereby reducing the risk of rupture of the aneurysm and the need for an invasive surgical intervention.
- the main (body) stent graft was placed in the main vessel, e.g., the aorta, to exclude an aneurysm.
- a (branch) fenestration (opening) in the side of the main body provides an opening for blood flow to a branch vessel which would otherwise be obstructed by the position of the main body across the ostium of the branch vessel.
- a branch graft or branch stent graft was then inserted through the side opening and into the branch vessel spanning any gap between the outside of the branch opening in the main body and the ostium of the branch vessel, and carrying blood across the gap without pressuring the aneurysm.
- the main stent graft was deployed in the main vessel such that an opening in the sidewall of the main stent graft was aligned with the branch vessel.
- a branch graft having a silicone flange was then passed through the opening in the main stent graft and deployed in the branch vessel.
- the silicone flange was configured to engage with and seal with the opening in the sidewall of the main stent graft.
- the silicone flange had a relatively large delivery profile and was somewhat inflexible thus limiting the range of applications in which the silicone flange with attached branch grafts could be used.
- a braided flange branch graft formed of a braided super elastic memory material includes a neck between an inner flange and an outer flange.
- the neck is positioned in an opening in a sidewall of a main stent graft and the inner flange and outer flange are deployed on opposite sides of the sidewall.
- the inner flange and the outer flange have a diameter greater than a diameter of the opening in the sidewall of the main stent graft.
- the sidewall of the main stent graft is sandwiched between the inner flange and the outer flange securely and simply mounting the braided flange branch graft to the main stent graft.
- the braided flange branch graft has a small delivery profile and is extremely flexible.
- FIG. 1 is a side plan view of a braided flange branch graft in accordance with one embodiment
- FIG. 2 is a perspective view of the braided flange branch graft of FIG. 1 ;
- FIG. 3 is a cross-sectional view outline of the braided flange branch graft corresponding to the side plan view of FIG. 1 ;
- FIG. 4 is a cut away cross-sectional view of a braided flange branch graft delivery system for delivering the braided flange branch graft of FIGS. 1 and 2 into the vasculature of a patient;
- FIG. 5 is a cross-sectional view of a vessel system including the braided flange branch graft of FIGS. 1 and 2 in its stretched shape in accordance with one embodiment
- FIG. 6 , 7 , 8 are cross-sectional views of the vessel system of FIG. 5 at further stages during deployment of the braided flange branch graft.
- a braided flange branch graft 100 formed of a braided super elastic memory material includes a neck 106 between an inner flange 102 and an outer flange 104 .
- Neck 106 is positioned in a side opening 506 in a sidewall 508 of a main stent graft 502 and inner flange 102 and outer flange 104 are deployed on opposite sides of sidewall 508 .
- Inner flange 102 and outer flange 104 have a diameter D 1 greater than a diameter D 3 of side opening 506 .
- main stent graft 502 is sandwiched between inner flange 102 and outer flange 104 securely and simply mounting braided flange branch graft 100 to main stent graft 502 .
- braided flange branch graft 100 when stretched into a substantially cylindrical shape for delivery, braided flange branch graft 100 has a small delivery profile and is extremely flexible.
- FIG. 1 is a side plan view of a braided flange branch graft 100 , sometimes called a side branch, in accordance with one embodiment.
- FIG. 2 is a perspective view of braided flange branch graft 100 of FIG. 1 .
- FIG. 3 is a cross-sectional view outline 300 of braided flange branch graft 100 corresponding to the side plan view of FIG. 1 .
- braided flange branch graft 100 has a longitudinal axis L.
- longitudinally means in a direction parallel to longitudinal axis L.
- Radially means in a direction perpendicular to longitudinal axis.
- Braided flange branch graft 100 includes an inner, e.g., first, flange 102 , and an outer, e.g., second, flange 104 , a neck 106 , and a trunk 108 .
- Neck 106 is longitudinal between inner flange 102 and outer flange 104 .
- Inner flange 102 and outer flange 104 extend radially outward from neck 106 . More particularly, inner flange 102 and outer flange 104 have a first diameter D 1 at outer radial perimeters 110 , 112 , respectively, greater than a second diameter D 2 of neck 106 . Accordingly, inner flange 102 , outer flange 104 , and neck 106 collectively define an annular channel 114 .
- Inner flange 102 is saucer shaped in accordance with this example. More particularly, outer radial perimeter 110 of inner flange 102 is circular. Further, the thickness of inner flange 102 increases towards the radial center of inner flange 102 . To illustrate, a first thickness T 1 of inner flange 102 at outer radial perimeter 110 is less than a second thickness T 2 of inner flange 102 at the point where inner flange 102 meets neck 106 .
- outer flange 104 is saucer shaped in accordance with this example. More particularly, outer radial perimeter 112 of outer flange 104 is circular. Further, the thickness of outer flange 104 increases towards the radial center of outer flange 104 . To illustrate, a first thickness T 1 of outer flange 104 at outer radial perimeter 112 is less than a second thickness T 2 of outer flange 104 at the point where outer flange 104 meet neck 106 .
- inner flange 102 and outer flange 104 are described and illustrated as being saucer shaped, i.e., being in the shape of a disk that increases in thickness towards the radial center of the disk, in other examples, inner flange 102 and outer flange 104 are in the shape of a uniform thickness disk.
- Trunk 108 extends longitudinally outward from outer flange 104 in a direction opposite inner flange 102 .
- Trunk 108 includes a base 109 attached to outer flange 104 .
- trunk 108 is cylindrically shaped, the cylinder having longitudinal axis L.
- braided flange branch graft 100 Extending longitudinally through braided flange branch graft 100 is a lumen 116 . More particularly, braided flange branch graft 100 includes an inner end 118 , e.g., a first longitudinal or proximal end, and an outer end 120 , e.g., a second longitudinal or distal end. An inner, e.g., first, opening 122 of lumen 116 is formed in the radial center of inner flange 102 at inner end 118 . A second opening 124 of lumen 116 is formed by the open end of trunk 108 at outer end 120 . As set forth further below, fluid, e.g., blood, passes through lumen 116 , e.g., from a main vessel into a branch vessel.
- fluid e.g., blood
- Braided flange branch graft 100 is formed of a braided super elastic memory material, e.g., nitinol, in accordance with one example.
- a super elastic memory material is a memory material that can be stretched from the shape of braided flange branch graft 100 shown in FIGS. 1 and 2 into a cylinder (see braided flange branch graft 100 of FIG. 5 for example) without permanent deformation of the memory material, i.e., the memory material will return from the cylinder to the shape of braided flange branch graft 100 shown in FIGS. 1 and 2 upon being released.
- a memory material is a material that can be set to have a specific shape, e.g., by heat setting, such that the material will return to the specific shape when the material is in its relaxed state.
- the braid is made by intertwining strands of super elastic memory material, e.g., strands of nitinol.
- the strands are all of one type, e.g., nitinol, in one example.
- two or more different types of strands are braided together to form braided flange branch graft 100 .
- strands of a biocompatible polymer e.g., polyester (PE) or polyester terephthalate (PET)
- PET polyester terephthalate
- strands of a memory metal e.g., nitinol
- the biocompatible polymer encourages ingrowth of the surrounding body tissue into braided flange branch graft 100 .
- braided flange branch graft 100 is formed by heat setting a braided super elastic memory material. For example, a cylindrical shaped braid is forced over a mandrel having the shape of braided flange branch graft 100 . In one example, the braid is clamped to the mandrel, for example, at neck 106 , to ensure conformity with the mandrel. The assembly is then heat set using a conventional technique. In one embodiment the ends of braided flange branch graft 100 are fused, crimped, folded, or otherwise prevented from unravelling.
- braided flange branch graft 100 is stretched into a substantially cylindrical shape. Upon being released, braided flange branch graft 100 returns to its relaxed state as illustrated in FIGS. 1 and 2 .
- braided flange branch graft 100 includes an elastic cover 126 illustrated by the dashed line.
- cover 126 is a super elastic material that conforms to the stretched and relaxed shape of the braided super elastic memory material of braided flange branch graft 100 .
- cover 126 is elastic polytetrafluoroethylene (PTFE) over a nitinol braid.
- FIG. 4 is a cross-sectional view of a braided flange branch graft delivery system 400 for delivering braided flange branch graft 100 of FIGS. 1 and 2 into the vasculature of a patient.
- delivery system 400 includes a handle 402 .
- An inner member 404 extends distally from handle 402 .
- Braided flange branch graft 100 is located over a distal end 406 of inner member 404 .
- Braided flange branch graft 100 is partially cutaway in the view of FIG. 4 for clarity of presentation.
- proximal end of delivery system 400 is referenced with respect to the operator's handle, i.e., handle 402 , while the proximal end of braided flange branch graft 100 is referenced with respect to the end closest to the heart via the length of blood traveled from the heart. (In this example the distal and proximal ends of each coincide.)
- Inner member 404 is a hollow tubular member and includes a guide wire lumen.
- a guide wire 408 extends through the guide wire lumen of inner member 404 .
- Braided flange branch graft 100 is stretched into a substantially cylindrical shape by delivery system 400 to minimize the delivery profile of braided flange branch graft 100 . Further, braided flange branch graft 100 is extremely flexible once stretched. Since braided flange branch graft 100 has a small delivery profile and is extremely flexible, braided flange branch graft 100 can be used in a wide variety of applications.
- braided flange branch graft 100 is connected and stretched at inner end 118 , neck 106 , base 109 , and outer end 120 . More particularly, braided flange branch graft 100 is connected to a neck hook 410 at neck 106 .
- Neck hook 410 is fixed in position and doesn't move relative to handle 402 in accordance with this example.
- neck hook 410 is mounted directly to inner member 404 . After deployment of braided flange branch graft 100 as discussed further below, neck hook 410 is pulled from and releases braided flange branch graft 100 as inner member 404 is retracted.
- Braided flange branch graft 100 is connected to an inner end hook 412 at inner end 118 .
- Inner end hook 412 is connected to an inner end hook slider 414 of handle 402 by an inner end hook connector 416 , e.g., a wire.
- Inner end hook slider 414 is threadedly connected to an inner end adjustment ring 418 .
- Inner end adjustment ring 418 is rotated, e.g., by the physician, thereby causing longitudinal translation of inner end hook slider 414 . More particularly, rotation of inner end adjustment ring 418 causes proximal or distal motion (left or right motion in the view of FIG. 4 ) of inner end hook slider 414 depending upon the direction of rotation of inner end adjustment ring 418 .
- Inner flange 102 is stretched into a cylindrical shape between inner end hook 412 and neck hook 410 .
- inner end hook 412 is pulled proximally and towards handle 402 by inner end hook slider 414 through inner end hook connector 416 .
- inner end hook slider 414 is moved distally towards braided flange branch graft 100 .
- Inner end hook 412 in turn, releases the tension on braided flange branch graft 100 between inner end 118 and neck 106 thus allowing inner flange 102 to return to its relaxed shape, e.g., to the saucer shape of inner flange 102 .
- inner end adjustment ring 418 is rotated in the reverse direction. This causes inner end hook slider 414 to move proximally away from braided flange branch graft 100 . This increases the tension pulling on inner end hook 412 . Inner end hook 412 , in turn, increases the tension on braided flange branch graft 100 between inner end 118 and neck 106 thus causing inner flange 102 to return to its stretched shape, e.g., to the cylindrical shape of inner flange 102 shown in FIG. 4 . Braided flange branch graft 100 is then repositioned.
- inner end hook 412 causes inner end hook 412 to slip from and release braided flange branch graft 100 thus permanently deploying inner flange 102 .
- Braided flange branch graft 100 is connected to a base hook 420 at base 109 .
- Base hook 420 is connected to a base hook slider 422 of handle 402 by a base hook connector 424 , e.g., a pair of coaxial hypo tubes.
- Base hook slider 422 is threadedly connected to a base adjustment ring 426 .
- Base adjustment ring 426 is rotated, e.g., by the physician, thereby causing longitudinal translation of base hook slider 422 . More particularly, rotation of base adjustment ring 426 causes proximal or distal motion (left or right motion in the view of FIG. 4 ) of base hook slider 422 depending upon the direction of rotation of base adjustment ring 426 .
- Outer flange 104 is stretched into a cylindrical shape between base hook 420 and neck hook 410 .
- base hook 420 is pushed distally and away from handle 402 by base hook slider 422 through base hook connector 424 .
- base hook slider 422 is moved proximally away from braided flange branch graft 100 . This releases the tension pushing on base hook 420 .
- Base hook 420 in turn, releases the tension on braided flange branch graft 100 between base 109 and neck 106 thus allowing outer flange 104 to return to its relaxed shape, e.g., to the saucer shape of outer flange 104 .
- base adjustment ring 426 is rotated in the reverse direction. This causes base hook slider 422 to move distally towards braided flange branch graft 100 . This increases the tension pushing on base hook 420 . Base hook 420 , in turn, increases the tension on braided flange branch graft 100 between base 109 and neck 106 thus causing outer flange 104 to return to its stretched shape, e.g., to the cylindrical shape of outer flange 104 shown in FIG. 4 . Braided flange branch graft 100 is then repositioned.
- outer flange 104 Once the positioning of outer flange 104 is satisfactory, continued proximal travel of base hook 420 causes base hook 420 to slip from and release braided flange branch graft 100 thus permanently deploying outer flange 104 .
- Braided flange branch graft 100 is connected to an outer end hook 428 at outer end 120 .
- Outer end hook 428 is connected to an outer end hook slider 430 of handle 402 by an outer end hook connector 432 , e.g., a pair of coaxial hypo tubes.
- Outer end hook slider 430 is threadedly connected to an outer end adjustment ring 434 .
- Outer end adjustment ring 434 is rotated, e.g., by the physician, thereby causing longitudinal translation of outer end hook slider 430 . More particularly, rotation of outer end adjustment ring 434 causes proximal or distal motion (left or right motion in the view of FIG. 4 ) of outer end hook slider 430 depending upon the direction of rotation of outer end adjustment ring 434 .
- Trunk 108 is stretched into an elongated cylindrical shape between outer end hook 428 and neck hook 410 (or base hook 420 ).
- outer end hook 428 is pushed distally and away from handle 402 by outer end hook slider 430 through outer end hook connector 432 .
- outer end hook slider 430 is moved proximally away from braided flange branch graft 100 . This releases the tension pushing on outer end hook 428 .
- Outer end hook 428 releases the tension on braided flange branch graft 100 thus allowing trunk 108 to return to its relaxed shape, e.g., to a shorter greater diameter cylinder.
- outer end adjustment ring 434 is rotated in the reverse direction. This causes outer end hook slider 430 to move distally towards braided flange branch graft 100 . This increases the tension pushing on outer end hook 428 . Outer end hook 428 , in turn, increases the tension on braided flange branch graft 100 between outer end 120 and neck 106 (or base 109 ) thus causing trunk 108 to return to its stretched shape, e.g., to the elongated cylindrical shape of trunk 108 shown in FIG. 4 . Braided flange branch graft 100 is then repositioned.
- trunk 108 Once the positioning of trunk 108 is satisfactory, continued proximal travel of outer end hook 428 causes outer end hook 428 to slip from and release braided flange branch graft 100 thus permanently deploying trunk 108 .
- braided flange branch graft 100 is stretched between inner end hook 412 and neck hook 410 , and between neck hook 410 and outer end hook 428 .
- other connection means can be used other than hooks.
- braided flange branch graft 100 is constrained within a sheath of a delivery system. Retraction of the sheath exposes braided flange branch graft 100 , which self-expands and is permanently deployed.
- FIG. 5 is a cross-sectional view of a vessel system 500 including braided flange branch graft 100 of FIGS. 1 and 2 in its stretched shape in accordance with one embodiment.
- a main stent graft 502 is deployed within a main vessel 504 using any one of a number of techniques well known to those of skill in the art.
- main stent graft 502 is deployed to exclude an aneurysm in main vessel 504 , main vessel 504 having a vessel wall 505 .
- a side opening 506 in a sidewall 508 of main stent graft 502 is aligned with a branch vessel 510 emanating from main vessel 504 .
- Braided flange branch graft 100 in its stretched cylindrical shape, is inserted through side opening 506 and into branch vessel 510 , for example, using delivery system 400 of FIG. 4 . Since braided flange branch graft 100 has a small delivery profile and is extremely flexible, braided flange branch graft 100 can be used in a wide variety of applications, e.g., in the case when branch vessel 510 is small and difficult to reach.
- Neck 106 of braided flange branch graft 100 is positioned within side opening 506 of main stent graft 502 , for example, using a radiopaque marker or other imaging technique.
- FIG. 6 is a cross-sectional view of vessel system 500 of FIG. 5 at a further stage during deployment of braided flange branch graft 100 .
- inner flange 102 is deployed. More particularly, inner flange 102 is return to its relaxed shape, e.g., to its saucer shape, as shown in FIG. 6 . Illustratively, inner flange 102 is deployed as discussed above in reference to delivery system 400 of FIG. 4 . Inner flange 102 is deployed inside of main stent graft 502 .
- FIG. 7 is a cross-sectional view of vessel system 500 of FIG. 6 at a further stage during deployment of braided flange branch graft 100 .
- outer flange 104 is deployed. More particularly, outer flange 104 is return to its relaxed shape, e.g., to its saucer shape, as shown in FIG. 7 . Illustratively, outer flange 104 is deployed as discussed above in reference to delivery system 400 of FIG. 4 . Outer flange 104 is deployed outside of main stent graft 502 and between main stent graft 502 and vessel wall 505 .
- inner flange 102 and outer flange 104 are deployed on opposite sides of sidewall 508 of main stent graft 502 .
- inner flange 102 and outer flange 104 have a first diameter D 1 at outer radial perimeters 110 , 112 , respectively, greater than a second diameter D 3 of side opening 506 .
- sidewall 508 of main stent graft 502 is sandwiched between inner flange 102 and outer flange 104 mounting and sealing braided flange branch graft 100 to main stent graft 502 .
- both inner flange 102 and outer flange 104 push on sidewall 508 of main stent graft 502 .
- sidewall 508 is located within annular channel 114 defined by inner flange 102 , neck 106 , and outer flange 104 of braided flange branch graft 100 .
- inner flange 102 , neck 106 , and outer flange 104 form a locking mechanism, sometimes called a means for locking, for locking braided flange branch graft 100 to main stent graft 502 .
- braided flange branch graft 100 is securely mounted to main stent graft 502 forming an intra-vascular assembly.
- the connection between braided flange branch graft 100 and main stent graft 502 is achieved by simply and reliably deploying inner flange 102 and outer flange 104 on opposite sides of sidewall 508 of main stent graft 502 .
- FIG. 8 is a cross-sectional view of vessel system 500 of FIG. 7 at a further stage during deployment of braided flange branch graft 100 .
- trunk 108 is deployed. More particularly, trunk 108 is return to its relaxed shape, e.g., to its shorter larger diameter cylindrical shape, as shown in FIG. 8 .
- trunk 108 is deployed as discussed above in reference to delivery system 400 of FIG. 4 .
- Trunk 108 is deployed inside of branch vessel 510 .
- trunk 108 self-expands into branch vessel 510 to maintain patency of branch vessel 510 .
- fluid e.g., blood
- lumen 116 of braided flange branch graft 100 is in fluid communication with the lumen of main stent graft 502 .
- Main stent graft 502 and braided flange branch graft 100 collectively form an intra-vascular assembly 802 .
- inner flange 102 before the deployment of outer flange 104 is set forth, in another example, outer flange 104 is initially deployed and then inner flange 102 is deployed. In yet another example, both inner flange 102 and outer flange 104 are deployed simultaneously.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Gastroenterology & Hepatology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/685,368 US20080228256A1 (en) | 2007-03-13 | 2007-03-13 | Braided Flange Branch Graft for Branch Vessel |
EP08730663A EP2129326A2 (fr) | 2007-03-13 | 2008-02-25 | Greffe ramifiée à rebord tressé pour vaisseau ramifié |
PCT/US2008/054907 WO2008112415A2 (fr) | 2007-03-13 | 2008-02-25 | Greffe ramifiée à rebord tressé pour vaisseau ramifié |
US12/816,115 US8262719B2 (en) | 2007-03-13 | 2010-06-15 | Braided flange branch graft for branch vessel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/685,368 US20080228256A1 (en) | 2007-03-13 | 2007-03-13 | Braided Flange Branch Graft for Branch Vessel |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/816,115 Division US8262719B2 (en) | 2007-03-13 | 2010-06-15 | Braided flange branch graft for branch vessel |
Publications (1)
Publication Number | Publication Date |
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US20080228256A1 true US20080228256A1 (en) | 2008-09-18 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/685,368 Abandoned US20080228256A1 (en) | 2007-03-13 | 2007-03-13 | Braided Flange Branch Graft for Branch Vessel |
US12/816,115 Active 2027-04-20 US8262719B2 (en) | 2007-03-13 | 2010-06-15 | Braided flange branch graft for branch vessel |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/816,115 Active 2027-04-20 US8262719B2 (en) | 2007-03-13 | 2010-06-15 | Braided flange branch graft for branch vessel |
Country Status (3)
Country | Link |
---|---|
US (2) | US20080228256A1 (fr) |
EP (1) | EP2129326A2 (fr) |
WO (1) | WO2008112415A2 (fr) |
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US20090082803A1 (en) * | 2007-09-26 | 2009-03-26 | Aga Medical Corporation | Braided vascular devices having no end clamps |
CN102368974A (zh) * | 2009-03-23 | 2012-03-07 | 麦德托尼克瓦斯科尔勒公司 | 具有卷起密封组件的分支脉管假体 |
CN103200975A (zh) * | 2010-09-10 | 2013-07-10 | W.L.戈尔及同仁股份有限公司 | 吻合装置和方法 |
US9566149B2 (en) | 2010-11-16 | 2017-02-14 | W. L. Gore & Associates, Inc. | Devices and methods for in situ fenestration of a stent-graft at the site of a branch vessel |
USD836194S1 (en) | 2017-03-21 | 2018-12-18 | Merit Medical Systems, Inc. | Stent deployment device |
US10285834B2 (en) | 2015-03-05 | 2019-05-14 | Merit Medical Systems, Inc. | Vascular prosthesis deployment device and method of use |
CN110495968A (zh) * | 2014-06-18 | 2019-11-26 | 波士顿科学国际有限公司 | 胆道支架 |
US10617542B2 (en) * | 2015-10-26 | 2020-04-14 | Id Nest Medical | Elastic ring and associated treatment device for implanting in a conduit for circulation of a body fluid |
US10744009B2 (en) | 2017-03-15 | 2020-08-18 | Merit Medical Systems, Inc. | Transluminal stents and related methods |
US10799378B2 (en) | 2016-09-29 | 2020-10-13 | Merit Medical Systems, Inc. | Pliant members for receiving and aiding in the deployment of vascular prostheses |
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WO2013171730A1 (fr) | 2012-05-15 | 2013-11-21 | Endospan Ltd. | Endoprothèse à éléments de fixation confinés radialement pour la pose |
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WO2014141232A1 (fr) | 2013-03-11 | 2014-09-18 | Endospan Ltd. | Système d'endoprothèse couverte multicomposants pour dissections aortiques |
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EP3082619B1 (fr) | 2013-12-20 | 2024-04-10 | Terumo Corporation | Occlusion vasculaire |
WO2016098113A1 (fr) | 2014-12-18 | 2016-06-23 | Endospan Ltd. | Stent-greffe endovasculaire avec tube latéral résistant à la fatigue |
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JP7293132B2 (ja) | 2017-05-25 | 2023-06-19 | テルモ株式会社 | 接着閉塞システム |
EP3700474B1 (fr) | 2017-10-25 | 2023-08-23 | Boston Scientific Scimed, Inc. | Stent avec espaceur atraumatique |
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WO2020093012A1 (fr) | 2018-11-01 | 2020-05-07 | Terumo Corporation | Systèmes d'occlusion |
US12011174B2 (en) | 2020-04-28 | 2024-06-18 | Terumo Corporation | Occlusion systems |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20090082803A1 (en) * | 2007-09-26 | 2009-03-26 | Aga Medical Corporation | Braided vascular devices having no end clamps |
US10433851B2 (en) | 2007-09-26 | 2019-10-08 | St. Jude Medical, Cardiology Division, Inc. | Braided vascular devices having no end clamps |
CN102368974A (zh) * | 2009-03-23 | 2012-03-07 | 麦德托尼克瓦斯科尔勒公司 | 具有卷起密封组件的分支脉管假体 |
CN103200975A (zh) * | 2010-09-10 | 2013-07-10 | W.L.戈尔及同仁股份有限公司 | 吻合装置和方法 |
US9566149B2 (en) | 2010-11-16 | 2017-02-14 | W. L. Gore & Associates, Inc. | Devices and methods for in situ fenestration of a stent-graft at the site of a branch vessel |
US11504221B2 (en) | 2014-06-18 | 2022-11-22 | Boston Scientific Scimed Inc. | Biliary stents and methods |
CN110495968A (zh) * | 2014-06-18 | 2019-11-26 | 波士顿科学国际有限公司 | 胆道支架 |
US10285834B2 (en) | 2015-03-05 | 2019-05-14 | Merit Medical Systems, Inc. | Vascular prosthesis deployment device and method of use |
US11304837B2 (en) | 2015-09-15 | 2022-04-19 | Merit Medical Systems, Inc. | Implantable device delivery system |
US10617542B2 (en) * | 2015-10-26 | 2020-04-14 | Id Nest Medical | Elastic ring and associated treatment device for implanting in a conduit for circulation of a body fluid |
US10799378B2 (en) | 2016-09-29 | 2020-10-13 | Merit Medical Systems, Inc. | Pliant members for receiving and aiding in the deployment of vascular prostheses |
US10744009B2 (en) | 2017-03-15 | 2020-08-18 | Merit Medical Systems, Inc. | Transluminal stents and related methods |
US11707370B2 (en) | 2017-03-15 | 2023-07-25 | Merit Medical Systems, Inc. | Stents and related methods |
US11628078B2 (en) | 2017-03-15 | 2023-04-18 | Merit Medical Systems, Inc. | Transluminal delivery devices and related kits and methods |
USD836194S1 (en) | 2017-03-21 | 2018-12-18 | Merit Medical Systems, Inc. | Stent deployment device |
US11419741B2 (en) * | 2019-06-17 | 2022-08-23 | Boston Scientific Scimed, Inc. | Covered endoprosthesis with improved branch access |
US20220125608A1 (en) * | 2020-10-26 | 2022-04-28 | Merit Medical Systems, Inc. | Esophageal stents with helical thread |
US11963893B2 (en) * | 2020-10-26 | 2024-04-23 | Merit Medical Systems, Inc. | Esophageal stents with helical thread |
Also Published As
Publication number | Publication date |
---|---|
US8262719B2 (en) | 2012-09-11 |
WO2008112415A2 (fr) | 2008-09-18 |
US20100256726A1 (en) | 2010-10-07 |
EP2129326A2 (fr) | 2009-12-09 |
WO2008112415A3 (fr) | 2009-01-29 |
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