Source: http://www.google.com/patents/US20020156522?dq=6181294
Timestamp: 2014-04-16 09:53:15
Document Index: 288558198

Matched Legal Cases: ['art 2', 'art 3', 'art 2', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3']

Patent US20020156522 - Aortic graft device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn aorta graft device comprising a primary graft part having a proximal end and a first connecting means at a distal opening, wherein the primary graft part has an anchoring area positioned between an ascending portion extending to said proximal end and a descending portion extending to said distal opening....http://www.google.com/patents/US20020156522?utm_source=gb-gplus-sharePatent US20020156522 - Aortic graft deviceAdvanced Patent SearchPublication numberUS20020156522 A1Publication typeApplicationApplication numberUS 10/104,835Publication dateOct 24, 2002Filing dateMar 22, 2002Priority dateMar 27, 2001Also published asCA2439106A1, CA2439106C, DE60104647D1, DE60104647T2, EP1245202A1, EP1245202B1, EP1372533A1, US6773457, WO2002076347A1Publication number10104835, 104835, US 2002/0156522 A1, US 2002/156522 A1, US 20020156522 A1, US 20020156522A1, US 2002156522 A1, US 2002156522A1, US-A1-20020156522, US-A1-2002156522, US2002/0156522A1, US2002/156522A1, US20020156522 A1, US20020156522A1, US2002156522 A1, US2002156522A1InventorsKrasnodar Ivancev, Bansi KoulOriginal AssigneeCook IncorporatedExport CitationBiBTeX, EndNote, RefManReferenced by (24), Classifications (15), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetAortic graft deviceUS 20020156522 A1Abstract An aorta graft device comprising a primary graft part having a proximal end and a first connecting means at a distal opening, wherein the primary graft part has an anchoring area positioned between an ascending portion extending to said proximal end and a descending portion extending to said distal opening. Furthermore, the ascending portion is corrugated, and the descending portion is at least partially non-corrugated. Images(6) Claims(18)
DETAILED DESCRIPTION [0036] An aorta graft device illustrated in FIG. 1 is generally designated 1 and includes a primary graft part 2 and an optional secondary graft part 3. The primary graft part 2 is tubular and has a proximal end 4 with a proximal opening 5. In the present context proximal is used for something located closer to the heart or to the side of the heart whereas distal is used for something located more distant from the heart. [0037] The primary and secondary graft parts are tubular and can be made of a pliable material, such as expanded polytetrafluoroethylene (PTFE), woven polyester or another biocompatible material of long term stability in the vascular system. Graft materials are well known in the art and the material can also include the biodegradeable strands as part of the material. [0038] The primary graft part has an ascending portion 6 and a descending portion 7. An anchoring area 8 is positioned in between the two portions 6, 7. The ascending portion 6 is at least partially corrugated (crimped) or folded in order to promote setting of the ascending portion in a curved shape and flexibility of the graft in use. [0039] The descending portion 7 is at least partially non-corrugated, and it can be non-corrugated along its complete surface. It can of course alternatively be corrugated along only part of its circumference and/or its length. The descending portion 7 can be unstented along its entire length, but preferrably it is at least partially stented by a stent 9 located at a distal opening 10. Stent 9 is of well known construction. It can e.g. be a so-called Gianturco Z-stent or another stent of expandable or self-expandable type which typically is of nitinol, stainless steel or another biocompatible material. Stent 9 is typically placed inside the tubular graft material, but can alternatively be placed on the outside of the tubular material which is then fastened to the stent struts, or the stent can be integrated into the graft material. [0040] Next to distal opening 10 the descending portion has a distal end area 11 which is unstented and can have a length l1 in the range from 3 mm to 40 mm, preferably from 20 mm to 30 mm. Stent 9 can extend continuously from distal end area 11 to the anchoring area 8. As depicted in FIG. 9 there can also be used two (or more) separate stents 9, 12 located at a distance from each other. The stent or stents keep the anchoring area in a stretched tubular shape ready for suturing and keep the distal opening in an open state that is accessible from the distal part of the aorta. In FIG. 1 the stented length I2 of the descending portion is in the range of 5 cm to 10 cm. The ascending portion has a length I3 in the range from 11 cm to 17 cm. The diameter of the graft device is in the range from 22 mm to 38 mm, preferably from 30 mm to 34 mm, such as about 32 mm. The tubular graft material has typically an even diameter along its length when it is manufactured, and some variations in diameter can result from the crimping of the ascending portion. However, it is also possible to make the graft of two separate tubular parts of different diameter if the ascending portion is to be of a diameter different from the descending portion of the graft device. [0041] At the lower (concave) side of the tubular graft a wedge-shaped area of the material has been cut away and the rim areas 13 have been joined, such as by suturing. [0042] The secondary graft part 3 has a connecting means 14 depicted as a stent in its proximal end. When the secondary graft part has been inserted through distal opening 10 into descending portion 7 and has been expanded, whether by self-expansion or balloon expansion, the connecting means 14 engages with stent 9 acting as a first connecting means on the primary part. The engagement can be of the frictional type produced by the radially outward pressure from stent 14 on the inside of the descending portion, but it is preferred that the mutual engagement involves geometrically interlocking parts, such as hooks 15 on stent 9 (FIG. 9). The hooks extend obliquely in the proximal direction. The hooks penetrate the graft material of graft part 3 and engage with the struts of stent 14 when the graft part 3 is pulled slightly in the distal direction. [0043] In the following description of embodiments the same reference numerals are used for details of the same type. [0044] In FIG. 2 the graft device also includes an end portion 16 with a heart valve. The stent 9 runs in a spiral pattern from one end to the other of the descending portion 7. The anchoring area includes a lateral area 17 extending annularly around a lateral opening 18 to be positioned at the three major branch arteries from the aortic arch. Lateral opening 18 can be part of the graft device as manufactured or it can be cut by the surgeon after he has opened the patient and ascertained the actual dimensions and locations of the proximal end opening of the branch arteries. In the latter case the lateral area can have a marking 19, such as a coloring, clearly indicating where the upwards facing lateral anchoring area is located on the graft device. This allows the surgeon to immediately position the graft device correctly and also helps to ensure that the cutting of the lateral opening or openings is only done in the unstented anchoring area. FIG. 9 illustrates an embodiment with three lateral openings 18. [0045] With reference to FIGS. 3-8 there is in the following shortly described an example of how the aorta graft device can be deployed. [0046] After cooling the patient down and exposing the aortic arc through a sternotomy and performing cardiopulmonary bypass or systemic circulatory arrest the ascending portion of aorta is resected, thereby exposing an proximal end opening 21 on the descending aorta 22 and a proximal end area 23 at the three major branch arteries 24 and a distal end opening 25 at the heart valve 26. [0047] The graft device is in a mounting state with the ascending portion 6 inverted down into the descending portion 7 (FIG. 4). The graft device is inserted into the descending aorta and is placed with a rim area 27 at the end opening 21 and then the rim area 27 on the graft is fixed to the aortic wall, such as by suturing 28 or stabling. [0048] After fixing of the graft to the aortic wall the ascending portion of the graft is inverted to the position illustrated in FIG. 5 with lateral opening 18 located at the proximal end area 23. Then this end area 23 is joined with the lateral anchoring area 17, such as by suturing or stabling. At this point in time the surgeon can decide to insert the secondary graft part through the proximal opening 5 and mount it in the ascending aorta and/or to the descending portion of the primary graft part. In many cases the decision will be to postpose the placement of the secondary graft part to a separate surgery in order to reestablish circulation as quickly as possible. Then the rim area at the proximal opening 5 is joined with the rim area at the distal end opening 25, such as by suturing or stabling. [0049] The graft device is then in the state illustrated in FIG. 6 where the circulation can be reestablished. The descending portion is hanging loose into the aorta. Depending on the condition and desires of the patient it is then possible to proceed in alternative ways. One possibility is to open the patient from the side and secure the end area 11 to the aortic wall, such as by suturing or stabling or stenting. Another possibility is to add the secondary graft part 3 which can be done either by percutaneously introducing (e.g. femorally) and intraluminally advancing graft part 3 with a minimally invasive procedure or by performing open surgery where the patient is opened from the side and the secondary graft part is introduced after establishing suitable cannulation and bypass. [0050]FIG. 7 illustrates the introduction of the secondary graft part 3 held in a radially reduced state in an introducer 29. When the proximal end 30 of graft part 3 is correctly located in the descending portion 7 the proximal end 30 is released from or expanded by the introducer so that the first and second connecting means are brought into secure mutual engagement. Then a distal end 32 of the secondary graft part 3 is located at the desired site of the aorta and is fixed thereto, either by suturing or stabling or by stenting. FIG. 7 illustrates stenting with a distal most stent 31 in the distal end. [0051] Details of the above mentioned embodiments can be combined into other embodiments within the scope of the present invention. Referenced byCiting PatentFiling datePublication dateApplicantTitleUS6974471 *Oct 25, 2002Dec 13, 2005Cook IncorporatedProstheses for curved lumensUS7105020Jan 13, 2004Sep 12, 2006The Cleveland Clinic FoundationBranched vessel endoluminal deviceUS7407509Apr 13, 2006Aug 5, 2008The Cleveland Clinic FoundationBranched vessel endoluminal device with fenestrationUS7674284Mar 25, 2005Mar 9, 2010Cook IncorporatedEndoluminal graftUS7918885 *Dec 13, 2002Apr 5, 2011Aesculap AgVessel prosthesis, particularly for the replacement of aorta segments near the heartUS8002816Dec 17, 2008Aug 23, 2011Cleveland Clinic FoundationProsthesis for implantation in aorta and method of using sameUS8048140Feb 22, 2005Nov 1, 2011Cook Medical Technologies LlcFenestrated intraluminal stent systemUS8137395Nov 4, 2010Mar 20, 2012Aesculap AgVessel prosthesis, particularly for the replacement of aorta segments near the heartUS8177834Mar 10, 2008May 15, 2012Cook Medical Technologies LlcWoven fabric with shape memory element strandsUS8187316Dec 23, 2008May 29, 2012Cook Medical Technologies LlcImplantable graft device having treated yarn and method for making sameUS8257430Dec 16, 2004Sep 4, 2012Cook Medical Technologies LlcInterconnected leg extensions for an endoluminal prosthesisUS8268340Apr 23, 2009Sep 18, 2012Advanced Bio Prosthetic Surfaces, Ltd.Implantable materials having engineered surfaces and method of making sameUS8287586Nov 8, 2004Oct 16, 2012Cook Medical Technologies LlcFlareable branch vessel prosthesis and methodUS8313523May 6, 2004Nov 20, 2012Advanced Bio Prosthetic Surfaces, Ltd.Metallic implantable grafts and method of making sameUS8357190 *May 8, 2006Jan 22, 2013Cook Medical Technologies LlcLaparoscopic vascular accessUS8579961Jan 24, 2007Nov 12, 2013Lifeshield Sciences LlcSectional crimped graftUS8632581 *Jul 6, 2007Jan 21, 2014Cook Medical Technologies LlcConformable end sealing stentUS8632583May 9, 2011Jan 21, 2014Palmaz Scientific, Inc.Implantable medical device having enhanced endothelial migration features and methods of making the sameUS20060195177 *Feb 10, 2006Aug 31, 2006Jotec GmbhStent for implantation in a blood vessel, especially in the region of the aortic archUS20100286794 *Jan 5, 2009Nov 11, 2010Novatech SaEndoprosthesis for anatomical ductUS20110160833 *Jul 11, 2008Jun 30, 2011Carlos GonzalezImplantable graft assemblyUS20110218609 *Feb 9, 2011Sep 8, 2011Trivascular, Inc.Fill tube manifold and delivery methods for endovascular graftUS20120158121 *Dec 14, 2011Jun 21, 2012Cook Medical Technologies LlcHybrid type a dissection deviceWO2011094459A1 *Jan 27, 2011Aug 4, 2011Iyer Sriram SDevice and method for preventing stenosis at an anastomosis site* Cited by examinerClassifications U.S. Classification623/1.13International ClassificationA61F2/06, A61F2/07, A61F2/89, A61F2/24, A61F2/84, A61F2/86Cooperative ClassificationA61F2/06, A61F2/89, A61F2/2418, A61F2002/061, A61F2/07, A61F2/86, A61F2002/075European ClassificationA61F2/07Legal EventsDateCodeEventDescriptionJan 27, 2012FPAYFee paymentYear of fee payment: 8May 17, 2011ASAssignmentFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COOK INCORPORATED;WILSON-COOK MEDICAL INCORPORATED;VANCEPRODUCTS INCORPORATED;AND OTHERS;SIGNING DATES FROM 20110315 TO 20110322;REEL/FRAME:026287/0923Owner name: COOK MEDICAL TECHNOLOGIES LLC, INDIANAJan 7, 2008FPAYFee paymentYear of fee payment: 4Jun 24, 2002ASAssignmentOwner name: COOK INCORPORATED, INDIANAOwner name: WILLIAM COOK EUROPE APS, DENMARKFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:IVANCEV, KRASNODAR;KOUL, BANSI LAL;REEL/FRAME:013039/0439Effective date: 20010814Owner name: COOK INCORPORATED P.O. BOX 489BLOOMINGTON, INDIANAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:IVANCEV, KRASNODAR /AR;REEL/FRAME:013039/0439RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google