CA2209883C - Endoprosthesis - Google Patents
Endoprosthesis Download PDFInfo
- Publication number
- CA2209883C CA2209883C CA002209883A CA2209883A CA2209883C CA 2209883 C CA2209883 C CA 2209883C CA 002209883 A CA002209883 A CA 002209883A CA 2209883 A CA2209883 A CA 2209883A CA 2209883 C CA2209883 C CA 2209883C
- Authority
- CA
- Canada
- Prior art keywords
- mesh
- endoprosthesis
- mesh structure
- open end
- spaces
- 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.)
- Expired - Fee Related
Links
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
- A61F2/82—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
- 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
- A61F2/02—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
- 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
- A61F2002/9534—Instruments specially adapted for placement or removal of stents or stent-grafts for repositioning of stents
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
An endoprosthesis for the internal support of hollow organs in living creatures comprises a flexible tubular mesh structure (2) with open ends (4) and an elastic tubular covering (6), whereby the mesh structure (2) is composed of circumferentially extending mesh rows (8, 8'), consisting of lined up spaces (12, 12') enclosed by mesh material (10). In the region of an open end (4) of the mesh structure (2) the covering (6) comprises an embedding portion (14), enclosing at least partially the mesh structure (21, and a projecting portion (16), following next to the embedding portion (14) and projecting over the open end (4).
By this means a hollow organ is protected against pointed or sharp-edged terminating parts projecting from the open end (4), specifically when the endoprosthesis is moved within the hollow organ by the peristaltic of the hollow organ or by removing of the endoprosthesis from the hollow organ.
Besides that the projecting portion (16) provides a target area for a gripping device when an implanted endoprosthesis is intended to be repositioned.
By this means a hollow organ is protected against pointed or sharp-edged terminating parts projecting from the open end (4), specifically when the endoprosthesis is moved within the hollow organ by the peristaltic of the hollow organ or by removing of the endoprosthesis from the hollow organ.
Besides that the projecting portion (16) provides a target area for a gripping device when an implanted endoprosthesis is intended to be repositioned.
Description
Pa 96/9 Stent Mini Skirt - Translation of Patent Application The invention relates to an endoprosthesis for the internal support of hollow organs in living creatures, comprising a flexible tubular mesh structure with open ends and an elastic tubular covering, whereby the mesh structure is composed of circumferentially extending mesh rows, consisting of lined up spaces enclosed with mesh material.
Open ends of endoprostheses as described in the introduction often bear a risk of injury of the hollow organ into which such an endoprosthesis has to be implanted. Depending on the design they comprise for example pointed wire ends when the mesh structure is braided from wires or sharp edges when the mesh structure is punched or etched out of a sheet metal tube.
For this reason the tissue of the stented hollow organ can be traumatically injured due to movements of the endoprosthesis, e.g. when repositioning or removing the endoprosthesis, or due to movements of the hollow organ, e.g. by the peristaltic for instance of the foodpipe.
From EP 0 621 015 A1 an endoprosthesis is known which has a cylindrical wall formed of a wire-netting and a covering layer of elastic material extending over a part of the length of the endoprosthesis. Since the covering layer terminates with the open end of the endoprosthesis it does not provide sufficient protection from pointed or sharp edged terminating parts of an open end of the cylindrical wall. The covering layer can be penetrated or slitted as the endoprosthesis is radially condensed for introduction into a hollow organ to be stented or as the implanted endoprosthesis is axially compressed due to peristaltic movements of the hollow organ; so that injuring end parts are set free. In this state an atraumatic displacement of the endoprosthesis within the hollow organ can not longer be achieved.
The problem of the invention is to develop an endoprosthesis as described in the introduction in such a way that a hollow organ which is internally supported by it is protected from injuries by pointed or sharp-edged terminating parts at a front end of the mesh structure. Moreover, a possibility shall be provided to reposition an endoprosthesis of the kind named at the beginning within a hollow organ or to remove it completely out of the hollow organ without causing damage to the hollow organ.
According to the invention the problem is solved by an endoprosthesis for the internal support of hollow organs in living creatures, comprising a flexible tubular mesh structure and a tubular covering, whereby the mesh structure is composed of circumferentially extending closed mesh rows bounding lined up spaces enclosed with mesh material and open ends formed by open mesh rows bounding spaces not entirely enclosed with mesh material, characterized in that in the region of said open end of the mesh structure the covering comprises an embedding portion enclosing at least partially the mesh structure, and an adjacent projecting portion protruding beyond said open end. When in the region of an open end of a mesh structure the elastic tubular covering comprises an embedding portion, enclosing at least partially the mesh structure, and a projecting portion, following next to the embedding portion and projecting over the front end, injuring pointed wire ends and sharp edges at the front end of an endoprosthesis are covered by a sufficiently long projecting material buffer, which is secured against loss by the embedding portion being connected with the mesh structure. Specifically when implanting an endoprosthesis according to the invention into a hollow organ which performs peristaltic movements in form of axial pushes against an open end of the endoprosthesis, e.g. the foodpipe, the partly turned back projecting portion serves as an additional protective layer. Besides that the covering comprising the embedding and projecting portion reduces the foreign body feeling of a patient into hers or his foodpipe such an endoprosthesis has been introduced, said feeling being enforced by uncovered wire ends touching the inside wall of the foodpipe. As a particular advantage it turns out that the projecting portion of the covering is a target which can relatively well be caught by gripping devices in order to be able to adjust the position of the endoprosthesis for example in proximal direction. At the same time a possibility is created for a complete removal of the endoprosthesis out of the hollow organ.
In accordance with one aspect of the present invention there is provided endoprosthesis for the internal support of hollow organs in living creatures, comprising a flexible tubular mesh structure and a tubular covering, whereby the mesh structure is composed of circumferentially extending closed mesh rows bounding lined up spaces enclosed with mesh material and open ends formed by open mesh rows bounding spaces not entirely enclosed with mesh material, characterized in that in the region of said open end of the mesh structure the covering comprises an embedding portion enclosing at least partially the mesh structure, and an adjacent projecting portion protruding beyond said open end.
Further advantages of an endoprosthesis according to the invention can be seen in preferred embodiments described subsequently with reference to the drawings where in FIG. 1 an open end of an endoprosthesis shown in perspective view of a quarter cut along the longitudinal axis, in 2a FIG. 2 an open end of a first embodiment shown in schematic side elevation, and in FIG. 3 a magnified detail of the open end of a second embodiment is illustrated.
According to FIG. 1 the mesh structure 2 of an endoprosthesis according to the invention comprises at an open end 4 a tubular covering 6, consisting of an embedding portion 14 partially enclosing the mesh structure 2 and of a projecting portion 16 following next to the embedding portion 14 and projecting over the open end 4.
FIG. 2 schematically shows a portion of a mesh structure 2 which is composed of circumferentially extending mesh rows 8 which consist of lined up spaces 12 enclosed with mesh material 10. For clarification a mesh row 8 is indicated with dotted spaces 12. The embedding portion 14 of the covering 6 which is indicated by a longitudinal hatch encloses the mesh structure 2 starting from the open end 4 completely over the length LE of at least the width B of a mesh row 8. This guarantees that the covering 6 is interlockingly connected with the mesh structure 2 and as a consequence the covering 6 cannot be removed from the mesh structure 2 and got lost by movements of the endoprosthesis in a hollow organ. The length of the projecting portion 16 is in this case of the same order of magnitude as the width B of a mesh row 8. Thus, on one hand the projecting portion 16 provides for a sufficiently strong protection layer between pointed wire ends and the inside wall of the hollow organ and on the other hand enough target area in order to clamp a gripping device to it.
In an advantageous embodiment as shown in FIG. 3 the embedding portion 14 encloses starting from the open end 4 mesh rows 8', squared indicated, consisting of spaces 12' which are not entirely enclosed vvith mesh material 10, whereby the spaces 12 of the first mesh row 8, consisting of spaces 12 entirely enclosed with mesh material 10, is no more enclosed by the embedding portion 14. In addition to the safe anchoring of the covering 6 the freezing effect of the covering 6 to the mesh structure 2 is reduced and therefore flexibility and compressibility of the endoprosthesis in the region of an open end 4 is restricted only slightly.
According to a preferred embodiment of the invention the covering 6 comprises canals, not shown in the figures, tightly enclosing the mesh material 10 and the mesh material 10 being movable along the canals.
This enables the covering 6 to follow the deformations of the mesh structure 2 caused by movements of the endoprosthesis as a consequence of axial shortening and bending or radial compression and expansion. By movement of the embedding portion 14 along the mesh material 10 it is possible for the elastic covering 6 to take the state of minimal tension and to reduce therefore the risk of tear or puncture of the covering 6.
In a mesh structure 2 of braided wires 10 the covering 6 comprises an average wall thickness of about half of the diameter of the wires 10. Such a wall thickness has proven effective with respect to the tear strength as well as to the amount of material needed for the covering 6. The covering 6 at the proximal open end 4 of braided mesh structures 2 has turned out to be an advantageous protection against breaking up the braiding which becomes effective for example when hooking with a gripping tool into the braiding distally of the embedding portion 14 and pulling the endoprosthesis in proximal direction.
The covering 6 of an endoprosthesis according to the invention is preferably made of a polyurethane elastomer. Due to its biocompatibility the polyurethane elastomer which is distributed on the trademark ChronoFIexTM by the company PolyMedica Industries can be taken as are example.
Open ends of endoprostheses as described in the introduction often bear a risk of injury of the hollow organ into which such an endoprosthesis has to be implanted. Depending on the design they comprise for example pointed wire ends when the mesh structure is braided from wires or sharp edges when the mesh structure is punched or etched out of a sheet metal tube.
For this reason the tissue of the stented hollow organ can be traumatically injured due to movements of the endoprosthesis, e.g. when repositioning or removing the endoprosthesis, or due to movements of the hollow organ, e.g. by the peristaltic for instance of the foodpipe.
From EP 0 621 015 A1 an endoprosthesis is known which has a cylindrical wall formed of a wire-netting and a covering layer of elastic material extending over a part of the length of the endoprosthesis. Since the covering layer terminates with the open end of the endoprosthesis it does not provide sufficient protection from pointed or sharp edged terminating parts of an open end of the cylindrical wall. The covering layer can be penetrated or slitted as the endoprosthesis is radially condensed for introduction into a hollow organ to be stented or as the implanted endoprosthesis is axially compressed due to peristaltic movements of the hollow organ; so that injuring end parts are set free. In this state an atraumatic displacement of the endoprosthesis within the hollow organ can not longer be achieved.
The problem of the invention is to develop an endoprosthesis as described in the introduction in such a way that a hollow organ which is internally supported by it is protected from injuries by pointed or sharp-edged terminating parts at a front end of the mesh structure. Moreover, a possibility shall be provided to reposition an endoprosthesis of the kind named at the beginning within a hollow organ or to remove it completely out of the hollow organ without causing damage to the hollow organ.
According to the invention the problem is solved by an endoprosthesis for the internal support of hollow organs in living creatures, comprising a flexible tubular mesh structure and a tubular covering, whereby the mesh structure is composed of circumferentially extending closed mesh rows bounding lined up spaces enclosed with mesh material and open ends formed by open mesh rows bounding spaces not entirely enclosed with mesh material, characterized in that in the region of said open end of the mesh structure the covering comprises an embedding portion enclosing at least partially the mesh structure, and an adjacent projecting portion protruding beyond said open end. When in the region of an open end of a mesh structure the elastic tubular covering comprises an embedding portion, enclosing at least partially the mesh structure, and a projecting portion, following next to the embedding portion and projecting over the front end, injuring pointed wire ends and sharp edges at the front end of an endoprosthesis are covered by a sufficiently long projecting material buffer, which is secured against loss by the embedding portion being connected with the mesh structure. Specifically when implanting an endoprosthesis according to the invention into a hollow organ which performs peristaltic movements in form of axial pushes against an open end of the endoprosthesis, e.g. the foodpipe, the partly turned back projecting portion serves as an additional protective layer. Besides that the covering comprising the embedding and projecting portion reduces the foreign body feeling of a patient into hers or his foodpipe such an endoprosthesis has been introduced, said feeling being enforced by uncovered wire ends touching the inside wall of the foodpipe. As a particular advantage it turns out that the projecting portion of the covering is a target which can relatively well be caught by gripping devices in order to be able to adjust the position of the endoprosthesis for example in proximal direction. At the same time a possibility is created for a complete removal of the endoprosthesis out of the hollow organ.
In accordance with one aspect of the present invention there is provided endoprosthesis for the internal support of hollow organs in living creatures, comprising a flexible tubular mesh structure and a tubular covering, whereby the mesh structure is composed of circumferentially extending closed mesh rows bounding lined up spaces enclosed with mesh material and open ends formed by open mesh rows bounding spaces not entirely enclosed with mesh material, characterized in that in the region of said open end of the mesh structure the covering comprises an embedding portion enclosing at least partially the mesh structure, and an adjacent projecting portion protruding beyond said open end.
Further advantages of an endoprosthesis according to the invention can be seen in preferred embodiments described subsequently with reference to the drawings where in FIG. 1 an open end of an endoprosthesis shown in perspective view of a quarter cut along the longitudinal axis, in 2a FIG. 2 an open end of a first embodiment shown in schematic side elevation, and in FIG. 3 a magnified detail of the open end of a second embodiment is illustrated.
According to FIG. 1 the mesh structure 2 of an endoprosthesis according to the invention comprises at an open end 4 a tubular covering 6, consisting of an embedding portion 14 partially enclosing the mesh structure 2 and of a projecting portion 16 following next to the embedding portion 14 and projecting over the open end 4.
FIG. 2 schematically shows a portion of a mesh structure 2 which is composed of circumferentially extending mesh rows 8 which consist of lined up spaces 12 enclosed with mesh material 10. For clarification a mesh row 8 is indicated with dotted spaces 12. The embedding portion 14 of the covering 6 which is indicated by a longitudinal hatch encloses the mesh structure 2 starting from the open end 4 completely over the length LE of at least the width B of a mesh row 8. This guarantees that the covering 6 is interlockingly connected with the mesh structure 2 and as a consequence the covering 6 cannot be removed from the mesh structure 2 and got lost by movements of the endoprosthesis in a hollow organ. The length of the projecting portion 16 is in this case of the same order of magnitude as the width B of a mesh row 8. Thus, on one hand the projecting portion 16 provides for a sufficiently strong protection layer between pointed wire ends and the inside wall of the hollow organ and on the other hand enough target area in order to clamp a gripping device to it.
In an advantageous embodiment as shown in FIG. 3 the embedding portion 14 encloses starting from the open end 4 mesh rows 8', squared indicated, consisting of spaces 12' which are not entirely enclosed vvith mesh material 10, whereby the spaces 12 of the first mesh row 8, consisting of spaces 12 entirely enclosed with mesh material 10, is no more enclosed by the embedding portion 14. In addition to the safe anchoring of the covering 6 the freezing effect of the covering 6 to the mesh structure 2 is reduced and therefore flexibility and compressibility of the endoprosthesis in the region of an open end 4 is restricted only slightly.
According to a preferred embodiment of the invention the covering 6 comprises canals, not shown in the figures, tightly enclosing the mesh material 10 and the mesh material 10 being movable along the canals.
This enables the covering 6 to follow the deformations of the mesh structure 2 caused by movements of the endoprosthesis as a consequence of axial shortening and bending or radial compression and expansion. By movement of the embedding portion 14 along the mesh material 10 it is possible for the elastic covering 6 to take the state of minimal tension and to reduce therefore the risk of tear or puncture of the covering 6.
In a mesh structure 2 of braided wires 10 the covering 6 comprises an average wall thickness of about half of the diameter of the wires 10. Such a wall thickness has proven effective with respect to the tear strength as well as to the amount of material needed for the covering 6. The covering 6 at the proximal open end 4 of braided mesh structures 2 has turned out to be an advantageous protection against breaking up the braiding which becomes effective for example when hooking with a gripping tool into the braiding distally of the embedding portion 14 and pulling the endoprosthesis in proximal direction.
The covering 6 of an endoprosthesis according to the invention is preferably made of a polyurethane elastomer. Due to its biocompatibility the polyurethane elastomer which is distributed on the trademark ChronoFIexTM by the company PolyMedica Industries can be taken as are example.
List of Reference Signs 2 mesh structure 4 open end 6 covering 8 mesh row (entirely enclosed spaces) 8' mesh row (not entirely enclosed spaces) mesh material 12 space (entirely enclosed by mesh material) 12' space (not entirely enclosed by mesh material) 14 embedding portion 16 projecting portion B width of a mesh row 8 LE length of embedding portion 14 L~ length of projecting portion 16
Claims (4)
1. Endoprosthesis for the internal support of hollow organs in living creatures, comprising a flexible tubular mesh structure and a tubular covering, whereby the mesh structure is composed of circumferentially extending closed mesh rows bounding lined up spaces enclosed with mesh material and open ends formed by open mesh rows bounding spaces not entirely enclosed with mesh material, characterized in that in the region of said open end of the mesh structure the covering comprises an embedding portion enclosing at least partially the mesh structure, and an adjacent projecting portion protruding beyond said open end.
2. Endoprosthesis according to claim 1, characterized in that the embedding portion encloses the mesh structure from the open end over a length (L E) of at least the width (B) of one closed mesh row.
3. Endoprosthesis according to claim 1 or claim 2, characterized in that starting from the open end the embedding portion completely encloses said open mesh rows consisting of spaces which are not entirely enclosed by mesh material, whereby the spaces of the closed mesh row consisting of spaces entirely enclosed by mesh material are no more enclosed by the embedding portion.
4. Endoprosthesis according to claim l, characterized in that the length (L ü) of the projecting portion is about the width (B) of one closed mesh row.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96202295.0 | 1996-08-16 | ||
| EP96202295A EP0824899B1 (en) | 1996-08-16 | 1996-08-16 | Endoprothesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2209883A1 CA2209883A1 (en) | 1998-02-16 |
| CA2209883C true CA2209883C (en) | 2006-09-05 |
Family
ID=8224293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002209883A Expired - Fee Related CA2209883C (en) | 1996-08-16 | 1997-07-09 | Endoprosthesis |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0824899B1 (en) |
| JP (1) | JP3203212B2 (en) |
| AT (1) | ATE238738T1 (en) |
| AU (1) | AU727097B2 (en) |
| CA (1) | CA2209883C (en) |
| DE (1) | DE59610404D1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29908768U1 (en) * | 1999-05-19 | 1999-08-12 | Starck, Bernd, Dipl.-Ing., 75443 Ötisheim | Highly flexible cover for stents and / or stent-crafts and / or stent-vascular prostheses |
| US20040111146A1 (en) * | 2002-12-04 | 2004-06-10 | Mccullagh Orla | Stent-graft attachment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122154A (en) * | 1990-08-15 | 1992-06-16 | Rhodes Valentine J | Endovascular bypass graft |
| JPH0717314Y2 (en) * | 1990-10-18 | 1995-04-26 | ソン ホーヨン | Self-expanding intravascular stent |
| CA2158757C (en) * | 1993-04-23 | 2000-01-04 | Joseph E. Laptewicz Jr. | Covered stent and stent delivery device |
| AU3783195A (en) * | 1994-11-15 | 1996-05-23 | Advanced Cardiovascular Systems Inc. | Intraluminal stent for attaching a graft |
-
1996
- 1996-08-16 DE DE59610404T patent/DE59610404D1/en not_active Expired - Fee Related
- 1996-08-16 EP EP96202295A patent/EP0824899B1/en not_active Expired - Lifetime
- 1996-08-16 AT AT96202295T patent/ATE238738T1/en not_active IP Right Cessation
-
1997
- 1997-07-09 CA CA002209883A patent/CA2209883C/en not_active Expired - Fee Related
- 1997-08-13 JP JP21838697A patent/JP3203212B2/en not_active Expired - Fee Related
- 1997-08-15 AU AU34211/97A patent/AU727097B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU727097B2 (en) | 2000-11-30 |
| DE59610404D1 (en) | 2003-06-05 |
| AU3421197A (en) | 1998-02-26 |
| EP0824899A1 (en) | 1998-02-25 |
| CA2209883A1 (en) | 1998-02-16 |
| EP0824899B1 (en) | 2003-05-02 |
| JPH10165512A (en) | 1998-06-23 |
| JP3203212B2 (en) | 2001-08-27 |
| ATE238738T1 (en) | 2003-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |