WO1997040779A1 - Endoprothese luminale pour ramification de voies d'un corps humain ou animal et son procede de fabrication - Google Patents
Endoprothese luminale pour ramification de voies d'un corps humain ou animal et son procede de fabrication Download PDFInfo
- Publication number
- WO1997040779A1 WO1997040779A1 PCT/BE1997/000049 BE9700049W WO9740779A1 WO 1997040779 A1 WO1997040779 A1 WO 1997040779A1 BE 9700049 W BE9700049 W BE 9700049W WO 9740779 A1 WO9740779 A1 WO 9740779A1
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- Prior art keywords
- tubular
- sleeve
- branch
- compressible
- radially expandable
- Prior art date
Links
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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
- A61F2/07—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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- 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
- A61F2002/065—Y-shaped blood vessels
-
- 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
- A61F2002/072—Encapsulated stents, e.g. wire or whole stent embedded in lining
-
- 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
- A61F2002/075—Stent-grafts the stent being loosely attached to the graft material, e.g. by stitching
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/001—Figure-8-shaped, e.g. hourglass-shaped
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
- Y10S623/901—Method of manufacturing prosthetic device
Definitions
- the present invention relates to a luminal endoprosthesis for branching pathways of a human or animal body. It also relates to a tubular trunk element to be used in such a luminal endoprosthesis and to the method of manufacturing such a tubular trunk element.
- the proximal neck is located under the renal arteries and the distal neck just upstream of the aorto-iliac bifurcation.
- no solution is proposed when the aneurysm extends into the branches of this ramification. Indeed, as the exponential growth of the aneurysm, the collars also become the seat of a dilation, particularly the distal collar, then the iliac arteries. In such cases, which are very frequent, the solutions proposed above are insufficient. Attempts have therefore been made to produce luminal stents for branching.
- bifurcated stents having the general appearance of pants having at the three ends a hooking support element, to be fixed to the proximal collar of the aneurysm and in healthy segments of the iliac arteries (see EP-A -0461791 and EP-A-0539237; T. CHUTER, Bifurcated endovascular graft insertion for abdominal aortic aneurysm, in "Vascular and Endovascular Surgical Techniques", 3rd ed., Ed. RM Greenhalg Publication WD Saunders Company, 1994, p. 92- 99).
- bifurcated stents include an aortic segment extended by a segment iliac.
- a branch stump 5 mm in diameter protrudes laterally, and must be placed in front of the mouth of the iliac artery not yet provided with its endoprosthesis.
- an additional tube must then be introduced to be inserted into this small tubular stump. This requires a precise positioning of it, which we try to obtain by the arrangement of radioopaque markers on the endoprosthesis (see BLUM U. et al, Abdominal Aortic Aneurysms ...., International Radiology, Vol. 198, 1, January 1996, p. 25-31).
- it requires a great mastery of the surgeon to introduce the additional tube into the tubular stump which is intended for him and he must have a great expertise in the field of the use of endoluminal catheters.
- endoprostheses which are formed from two tubular elements to be introduced simultaneously into the aneurysm, the first by an iliac artery, the second by the other iliac artery.
- the ends of these tubular elements when they reach the proximal neck of the aneurysm, are radially dilated to be hooked there simultaneously, while the opposite end of each of these elements is similarly hung in its iliac artery corresponding.
- a metal stake is expanded in the collar to receive the two expandable ends of the above-mentioned tubular elements (see EP-A-0551179).
- the object of the present invention is to overcome the problems posed and to provide a luminal endoprosthesis for branching of pathways in a human or animal body which is applicable to the majority of anatomical conditions and which is easy to position without having particular experience. catheterization. After placement, this stent cannot present any phenomenon of blood leakage in the cavity of the aneurysm. This stent will moreover advantageously be very easy to manufacture and store.
- a luminal endoprosthesis for branching pathways of a human or animal body comprising
- tubular trunk element radially expandable and compressible, to be applied in the expansion position in a main track of said branch
- this tubular trunk element having axially two ends and a cavity which is open at these two ends and - at least a radially expandable and compressible tubular branch element, having two ends axially and a cavity open at these two ends
- each branch element being, in its compression position, independent of the tubular trunk element
- this stent being characterized in that the cavity of the trunk element is divided into several axial channels over at least part of its length, and in that each branch element has one end to be applied, in the expansion position, in a of said axial channels of the tubular trunk element and another end situated outside the element ment of tubular trunk, in a secondary path of said branching.
- This stent has the advantage of being formed of independent elements, that is to say successively introduced into the body, which have an external shape similar to known common tubular stents.
- the trunk element is released between the distal and proximal necks of the aneurysm in a common fashion, like a non-bifurcated stent.
- each branch element is introduced by one end inside the trunk element, remaining at the other end in its corresponding iliac artery.
- the division of the internal cavity of the tubular trunk element in two axial channels has the effect of artificially displacing the branch at a certain distance from the altered branch.
- the application of a tubular branch element in each axial channel has the effect of preventing any phenomenon of blood leakage in the aneurysm.
- the axial channels are provided only on a central part of the axial cavity of the tubular trunk element.
- This embodiment facilitates, as will be seen below, the introduction of the guide and its introducer, then of its branching element inside the already placed trunk element.
- the bifurcation obtained by two branch elements, hooked in the center of the trunk element softens the curvature of the branch elements, which promotes the flow of bodily fluids.
- the tubular trunk element comprises between its ends a sleeve of flexible, biocompatible material, which is impermeable to bodily fluids passing through said branch and which forms said cavity and its channels, and, at least at each end of the trunk member, a radially expandable, compressible tubular stake member, to which the sleeve is attached.
- the tubular trunk element comprises, between its ends, a sleeve of flexible, biocompatible material, which is impermeable to bodily fluids passing through said branch, and which forms said cavity and its channels , and a radially expandable and compressible tubular support, which surrounds the sleeve and on which the latter is fixed at least to the ends of the tubular trunk element.
- Such stakes are, for example, self-expanding or expanding by balloon and mention may be made, for example, of US-A-4733655, US-A-4739762, US-A-4776337, US-A-5019090, US-A- 5061275, US-A-5092877, US-A-5171262, US-A-5195984, EP-A-0183372, EP-A-0556850, EP-A-0621015, GB-1205743, WO-83/03752, WO- 92/06734.
- the sleeve can be made of any known biocompatible material which has, for example, already been used for the manufacture of grafts or stent coverings for stents.
- Mention may in particular be made of a material produced for example as described in US-A-4475272, US-A-4323525 or EP-A-0603959.
- This biologically inert material may be DACRON, TEFLON, polyurethane, fibers of polycarbonate, or the like.
- the expandable tubular stake will have, in the expansion position, at least one end which widens outwards. Preferably it will present a complete internal and / or external covering.
- Each branch element is produced in the form of a stent known per se suitable for being placed inside a secondary branching path, for example of an iliac artery.
- each tubular branch element comprises, between its ends, a sheath made of flexible, biocompatible material, which is impermeable to bodily fluids passing through said branch and which forms its aforesaid cavity and, at least at each end of the tubular branch element, an element of tubular support, radially expandable and compressible, on which the sheath is fixed.
- each tubular branch element comprises, between its ends, a radially expandable and compressible tubular support, which has an internal and / or external covering in a biocompatible material, impermeable to bodily fluids.
- the stent can be supported over its entire length by several tubular stakes, a stake for the trunk element and a stake for each branch element, none of these stakes being branched off.
- the present invention also relates to a tubular trunk element to be used in a luminal endoprosthesis for branching pathways of the human or animal body, this tubular trunk element being radially expandable and compressible and being, in the expansion position, to be applied in a main track of said branch, the tubular trunk element having axially two ends and a cavity which is open at these two ends and which is divided into several axial channels over at least part of its length.
- the invention also relates to methods of manufacturing a tubular trunk element according to the invention to be used in a luminal endoprosthesis for branching pathways of a human or animal body.
- FIG. 1 represents a side view, partially broken, of a tubular trunk element according to the invention, to be used in a luminal endoprosthesis according to the invention.
- Figures 2 to 4 show sectional views, on an enlarged scale, along lines II-II, III-III and IV-IV of Figure 1.
- Figure 5 shows a side elevation view, partially broken, d 'an alternative embodiment of tubular trunk element 1 according to the invention.
- Figures 6 to 8 show sectional views, on an enlarged scale, along lines VI-VI, VII-VII and VIII-VIII of Figure 5.
- Figures 9 to 14 illustrate, in partially broken views, a method of releasing a luminal endoprosthesis for branching according to the invention in the case of an abdominal aortic aneurysm.
- FIGS 15 to 17 illustrate a method of manufacturing trunk member according to the invention.
- FIGS. 2 to 4 and 6 to 8 the wires of the stakes are shown in section, and not in section like the other elements, to facilitate the reading of the drawings. In these views the proportions between the different elements are not necessarily correct. The thickness of the layers has for example been increased for a better understanding of the drawings.
- Figures 1 to 4 there is shown an embodiment of tubular trunk element, designated by the general reference 1, of a stent for branching according to the invention.
- This tubular trunk element is radially expandable and compressible and it is shown in the expansion position. It has two ends axially and a cavity 2 which is open at these two ends.
- the tubular trunk element 1 comprises a tubular support 3, known per se, here formed of a self-expanding tubular braid, for example based on simple metal wires, and a sleeve 4 of a biocompatible material, advantageously flexible, which is impermeable to bodily fluids passing through said branch.
- the sleeve 4 has, in its central part, diametrically opposite parts 5 and 6 which are mutually connected, for example by sewing, sealing, heat sealing, etc.
- the ends of the sleeve are fixed to the internal wall of the stake 3, for example by collage.
- the sleeve 4 delimits the internal cavity 2 of the tubular trunk element and, by its shape, it produces inside the latter an arrangement of two axial channels 7 and 8 which divide the cavity 2 into two parallel conduits, which are similar in shape to vascular conduits and are sealed against each other and each from the aneurysm.
- the stake 3 is replaced by stake elements 9 and 10 at the ends of the trunk element 1 for the attachment of the sleeve 4 in place (see Figure 1 in lines interrupted).
- the sleeve 4 is fixed at its ends to these support elements while it is not supported in its central part. Its shape narrowed at this point into two axial channels 7 and 8 gives it better resistance to the internal radial pressure of the bodily fluid passing through the sleeve after the tubular trunk element 1 has been released.
- the tubular braid of the tutor 3 illustrated can be formed of multiple wires. It will also preferably have, rather than a cylindrical shape, a shape with flared ends, so that it can be more easily fixed to the necks of the aneurysm as can be seen in FIGS. 13 to 18.
- the stake 3 has an internal covering 11 and an external covering 12, for example made of a biocompatible material.
- a biocompatible material for example made of a biocompatible material.
- Such a tutor is well known in the art, for example in EP-A-0603959.
- the materials of these recoveries can be the same, and advantageously the sleeve 4 fixed inside this stake is also itself in this material.
- This embodiment allows excellent adhesion of the sleeve 4 to two channels 7 and 8 inside the stake, as will be explained in more detail below.
- this branch element 13 comprises, like a common luminal endoprosthesis, a tubular support 14 known per se, here formed of a self-expanding tubular braid, for example made from simple metal wires.
- This braid here has an external covering 15 made of a biocompatible material, advantageously flexible, which is impermeable to bodily fluids passing through the branching.
- the end of the branch element 13 is applied against the internal wall of the channel 8 in a fluid-tight manner. It may have a covering 15 made of a material identical to that of the covering (s) of the stake 3 and to that of the sleeve 4.
- This branch element 13 may rather have an internal covering instead of the external covering 15 or it may include both at a time.
- the branching element 13 outside the channel 8, floats fairly freely in the cavity 2 of the tubular trunk element 1. It projects at one end thereof ( see figure 5). It is this end of the branch element 13 which will be inside an iliac artery, in the event of an abdominal artery aneurysm. In this position, the branch element
- the endoprosthesis according to the invention therefore achieves a non-anatomical bifurcation between separate endoprosthesis elements, which are inserted into each other in a sealed manner.
- the end of the trunk element of the stent through which the branching elements can be introduced is wide open and does not allow any false maneuver for the insertion of these in one of the channels 7 and 8.
- trunk element 1 can be designed without departing from the scope of the invention.
- a simple flexible partition inside the stake (as shown schematically in Figure 10) could be suitable.
- a non-watertight partitioning is sufficient provided that, when the branching elements are introduced, the tightness is then guaranteed by expansion of these.
- FIGS. 9 to 14 we will now describe the introduction of a stent according to the invention into an abdominal aortic aneurysm.
- the aneurysm 17 in this abdominal aorta 18 is located between the renal arteries 19 and 20 and the iliac arteries 21 and 22.
- the aneurysm 17 has two collars, the proximal 23 and the distal 24.
- the departure of the iliac arteries each also presents an aneurysm 25 and 26.
- a guide 27 is introduced from one of the iliac arteries 21, that is to say a long wire which will guide the sliding of an introducer 28 inside the artery iliac then of the aorta artery (see Figure 9).
- the introducer 28 thus guided has reached the level of the proximal collar 23, it is possible to drop the trunk element 1 according to the invention, as when dropping a common endoprosthesis (see for example US-A-4140126), by simply removing the introducer 28 and holding the trunk element in place 1.
- the latter flares under the action of expansion of the stake and, in this way, it applies to the proximal collar 23 so as to seal the aneurysm 17 vis-à-vis the blood flow from the heart.
- the trunk member 1 whose length has been calculated by the surgeon, is in place with each of its ends applied to a collar the aneurysm. This is now completely isolated from the blood flow passing through the abdominal aorta.
- a new introducer 29 is then introduced along the guide 27 which is still in place.
- This introducer easily penetrates into the cavity 2 of the trunk element 1.
- a branch element 13 is there in a state completely independent of the element of trunk 1.
- the end of the introducer 29 easily reaches one of the channels 7 of the trunk element 1, then the introducer 29 is removed while holding it in place the branch element 13, the end of the latter passes into the expansion position. It then applies against the walls of the channel 7 where the guide 27 passes.
- a new guide 31 is then introduced through the other iliac artery 22.
- This guide penetrates without problem, through the wide opening of its cavity 2, inside the trunk element 1. There it can only pass through the channel 8, channel 7 already being closed off vis-à-vis the lower part of the trunk element.
- the branch element 13 was placed between the iliac artery 21 and the channel 8, which is possible, the guide inserted by the iliac artery 22 would not have that the possibility of passing through the channel not blocked, in this case the channel 7.
- a new introducer 32 is then slid along its guide 31 and an additional branch element 33 is then released as shown in FIG. 14.
- the anatomical branch has been raised to the level indicated by the arrow 34.
- the branching elements 13 and 33 present from this level a soft curvature without danger of fold formation.
- the 3 aneurysms are now sealed, without having to resort to complicated maneuvers using a catheter recovery device or difficult alignment of stent pieces facing one another.
- the sleeve is manufactured in a cylindrical form in any known manner, for example according to the teaching of US-A-4323525, US-A-4475972, US-A-4878908 and EP-A-0009941 .
- the material used to manufacture such a sleeve may consist, although not necessarily, of a fibrous material, advantageously elastic.
- a fibrous material advantageously elastic.
- the cylindrical sleeve 35 obtained, illustrated in FIG. 15, then undergoes a sealed connection 36 between two diametrically opposite parts of its periphery so as to form two axial channels over at least part of its length.
- This sealed connection can for example be carried out by sewing, suturing, heat or cold sealing or any other similar means.
- the sleeve thus formed is then to be attached to the internal surface of the tubular support or of the support elements used by any suitable means.
- This mold 37 comprises two cylindrical ends 38 and 39 separable. One of these ends, 39 for example, is provided with two legs 40 and 41, which protrude parallel to each other and to the axis of the mold 37. After threading part of the sleeve 35 on this end 39 of the mold, by passing the legs 40 and 41 through the axial channels of the sleeve 35, the remaining part of the sleeve is threaded onto the other end 38 of the mold 37. By bringing the two parts of the mold 38 and 39 together , the two legs 40 and 41 of the part 39 penetrate into corresponding blind holes 42 and 43 provided in the part 38.
- the sleeve 35 undergoes radial expansion.
- An adhesive can then be applied to its surface and then thread, over the sleeve, the stake 54 or the stake elements in the radially expanded position, to a diameter slightly greater than the rest diameter.
- the tutor then applies pressure directed inward on the sleeve, while the adhesive sets.
- a solution of this material can be prepared in a solvent, such as tetrahydrofuran.
- the tutor is immersed in this solution before it is threaded over the sleeve. After heating in a hot air oven at 110 ° C for one hour, a trunk member according to the invention is obtained.
- the guardian has before its donning an internal covering in polycarbonate fibers and even more advantageously, simultaneously, an external covering, like the guardians described in EP-A-0603959.
- the level of adhesion energy obtained between the sleeve and the support can then be 100 to 1000 J / m 2 . It should be understood that the present invention is in no way limited to the forms and embodiments given above and that many modifications can be made thereto without departing from the scope of the invention indicated in the claims which follow.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT97919210T ATE193970T1 (de) | 1996-04-25 | 1997-04-25 | Endoluminale prothese zur kanalverzweigung in einem menschlichen oder tierischen körper sowie entsprechendes herstellungsverfahren |
EP97919210A EP0900061B1 (fr) | 1996-04-25 | 1997-04-25 | Endoprothese luminale pour ramification de voies d'un corps humain ou animal et son procede de fabrication |
CA002252940A CA2252940C (fr) | 1996-04-25 | 1997-04-25 | Endoprothese luminale pour ramification de voies d'un corps humain ou animal et son procede de fabrication |
US09/171,591 US6554858B2 (en) | 1996-04-25 | 1997-04-25 | Intraluminal endoprosthesis for ramifying the ducts of a human or animal body and method of manufacture thereof |
DK97919210T DK0900061T3 (da) | 1996-04-25 | 1997-04-25 | Luminal endoprotese til karforgreninger i et menneske- eller dyrelegeme og fremgangsmåde til fremstilling af denne |
DE69702343T DE69702343T2 (de) | 1996-04-25 | 1997-04-25 | Endoluminale prothese zur kanalverzweigung in einem menschlichen oder tierischen körper sowie entsprechendes herstellungsverfahren |
JP53840797A JP3705607B2 (ja) | 1996-04-25 | 1997-04-25 | 人体又は動物体中の脈管分枝用の管腔内補形物及びその製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9600364A BE1010183A3 (fr) | 1996-04-25 | 1996-04-25 | Endoprothese luminale pour ramification de voies d'un corps humain ou animal et son procede de fabrication. |
BE9600364 | 1996-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997040779A1 true WO1997040779A1 (fr) | 1997-11-06 |
Family
ID=3889700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BE1997/000049 WO1997040779A1 (fr) | 1996-04-25 | 1997-04-25 | Endoprothese luminale pour ramification de voies d'un corps humain ou animal et son procede de fabrication |
Country Status (10)
Country | Link |
---|---|
US (1) | US6554858B2 (fr) |
EP (1) | EP0900061B1 (fr) |
JP (1) | JP3705607B2 (fr) |
AT (1) | ATE193970T1 (fr) |
BE (1) | BE1010183A3 (fr) |
CA (1) | CA2252940C (fr) |
DE (1) | DE69702343T2 (fr) |
DK (1) | DK0900061T3 (fr) |
ES (1) | ES2148968T3 (fr) |
WO (1) | WO1997040779A1 (fr) |
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FR2775182A1 (fr) * | 1998-02-25 | 1999-08-27 | Legona Anstalt | Dispositif formant andoprothese intracorporelle endoluminale, en particulier aortique abdominale |
FR2797389A1 (fr) | 1999-08-09 | 2001-02-16 | Novatech Inc | Prothese aortique bifurquee |
WO2016124235A1 (fr) * | 2015-02-04 | 2016-08-11 | Despalle De Béarn Olivier | Endoprothese luminale |
CN107126304A (zh) * | 2016-02-26 | 2017-09-05 | 奥利维尔·德斯帕列·德贝恩 | 多层腔内支架 |
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FR2775182A1 (fr) * | 1998-02-25 | 1999-08-27 | Legona Anstalt | Dispositif formant andoprothese intracorporelle endoluminale, en particulier aortique abdominale |
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CN106102660A (zh) * | 2015-02-04 | 2016-11-09 | 奥利维尔·德斯帕勒·德·贝阿恩 | 腔内支架 |
EP3253330B1 (fr) * | 2015-02-04 | 2019-12-04 | Despalle De Béarn, Olivier | Endoprothese luminale |
US10575938B2 (en) | 2015-02-04 | 2020-03-03 | Olivier Despalle de Béarn | Luminal endoprosthesis |
CN107126304A (zh) * | 2016-02-26 | 2017-09-05 | 奥利维尔·德斯帕列·德贝恩 | 多层腔内支架 |
Also Published As
Publication number | Publication date |
---|---|
BE1010183A3 (fr) | 1998-02-03 |
JP2000508941A (ja) | 2000-07-18 |
EP0900061B1 (fr) | 2000-06-21 |
ES2148968T3 (es) | 2000-10-16 |
DK0900061T3 (da) | 2000-10-23 |
DE69702343D1 (de) | 2000-07-27 |
US20010004707A1 (en) | 2001-06-21 |
JP3705607B2 (ja) | 2005-10-12 |
CA2252940C (fr) | 2006-01-31 |
ATE193970T1 (de) | 2000-07-15 |
US6554858B2 (en) | 2003-04-29 |
CA2252940A1 (fr) | 1997-11-06 |
DE69702343T2 (de) | 2001-01-18 |
EP0900061A1 (fr) | 1999-03-10 |
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