CA2102019C
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Device for the implantation of self-expanding endoprostheses
Assignee: Schneider Europe GmbH
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Filing: 1993-10-29
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Granted: 1997-06-03
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Expires: 2013-10-29
Abstract
Abstract A device for implanting endoprostheses (1) has basically a tubular outer body (2) and an elongated core element (3) placed inside of this. To operate the device, both the core element (3) and the tubular body (2) are provided with handles (5, 6) at their proximal ends. In order to produce a form-locking connection between the endoprosthesis (1) and the core element (3), the core element (3) exhibits a region (10) in which is impressed a relief corresponding to the inner form of the endoprosthesis (1). As a result of this, there are a great number of form- locking meshing sites between the enclosed, folded endoprosthesis (1) and the core element (3). A device with this type of design permits partially released endoprostheses (1) to be folded back up again by pushing the tubular body (2) forward so that the endoprosthesis (1) may be repositioned. In addition, sure and reliable operation is achieved by this type of stamping of the core element (3).
Inventors
- 👤 Reto Braunschweiler
- 👤 Michel Bachmann
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-23 06:32
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/82; A61F2/86; A61F2/90; A61F2/962; A61F2/966; A61F2002/9665
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
124 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, the endoprosthesis having a longitudinal length in a radially contracted state, wherein said core element has a stamping on its outer surface corresponding to at least 10% and at most 50% of the longitudinal length of the contracted endoprosthesis, the stamping essentially complementing the shape of an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state.
Claim 2
Dependent Claim
124 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, the endoprosthesis having a longitudinal length in a radially contracted state, wherein said core element has a stamping on its outer surface corresponding to at least 10% and at most 50% of the longitudinal length of the contracted endoprosthesis, the stamping essentially complementing the shape of an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state.
Claim 3
Dependent Claim
37 words
The device according to claim 1, wherein said implanting device is configured to be used to implant various endoprostheses, wherein said stamping is individually adapted to complement the structure of the inner surface of each endoprosthesis used.
Claim 4
Dependent Claim
31 words
The device according to claim 1, wherein said endoprosthesis has a proximal end and said core element has an area that has no stamping at the proximal end of the endoprosthesis.
Claim 5
Dependent Claim
23 words
The device according to claim 1, wherein a depth of said stamping is at least approximately 50% of a thickness of the endoprosthesis.
Claim 6
Dependent Claim
40 words
The device according to claim 1, wherein an average distance between an outer diameter of said core element and an inner diameter of said tubular body is less than a thickness of the endoprosthesis in a region of said stamping.
Claim 7
Dependent Claim
18 words
The device according to claim 1, wherein said core element has a lumen for receiving as guide wire.
Claim 8
Dependent Claim
20 words
The device according to claim 1, wherein said core element has a shoulder situated proximally with respect to the endoprosthesis.
Claim 9
Dependent Claim
25 words
The device according to claim 1, wherein said core element has an outer surface in regions bordering said stamping that do not have any stamping.
Claim 10
Dependent Claim
105 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having a distal end and an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, wherein said core element has a coating or sheath at least in a region of the distal end having a stamping essentially complementing an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state.
Claim 11
Dependent Claim
105 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having a distal end and an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, wherein said core element has a coating or sheath at least in a region of the distal end having a stamping essentially complementing an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state.
Claim 12
Dependent Claim
17 words
The device according to claim 9, wherein said coating or sheath is made of a thermoplastic material.
Claim 13
Dependent Claim
27 words
The device according to claim 10, wherein said coating or sheath is a sheath comprising a piece of plastic tubing which is shrunk onto said core element.
Claim 14
Dependent Claim
24 words
The device according to claim 9, wherein the core element has a thermoplasticity which is lower than a thermoplasticity of the coating or sheath.
Claim 15
Dependent Claim
123 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, wherein said core element, at least on part of its outer surface, has a stamping essentially complementing the shape of an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state and wherein the endoprosthesis comprises several layers and at most 50% of a thickness of an innermost layer of the endoprosthesis meshes with said stamping.
Claim 16
Dependent Claim
123 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, wherein said core element, at least on part of its outer surface, has a stamping essentially complementing the shape of an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state and wherein the endoprosthesis comprises several layers and at most 50% of a thickness of an innermost layer of the endoprosthesis meshes with said stamping.
Claim 17
Dependent Claim
123 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, wherein said core element, at least on part of its outer surface, has a stamping essentially complementing the shape of an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state, wherein said core element has a shoulder situated proximally with respect to the endoprosthesis and the shoulder comprises a ring made of x-ray opaque material.
Claim 18
Dependent Claim
123 words
An implanting device in combination with a tubular radially self-expanding endoprosthesis comprising: an elongated inner core element having an outer surface over which said endoprosthesis is placed and a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element and said endoprosthesis to hold said endoprosthesis in a radially contracted state, wherein said core element, at least on part of its outer surface, has a stamping essentially complementing the shape of an inner surface of said endoprosthesis when said endoprosthesis is in a radially contracted state, wherein said core element has a shoulder situated proximally with respect to the endoprosthesis and the shoulder comprises a ring made of x-ray opaque material.
Claim 19
Dependent Claim
113 words
A process for providing a locking attachment between the outer surface of an elongate core element and a tubular self-expanding endoprosthesis in radially contracted state, said elongate core element being for use in an endoprosthesis implanting device which includes an outer tubular body that at least partially surrounds the core element and is movable longitudinally in relation thereto, the endoprosthesis being held in radially contracted state between the outer body and the core element and in locking engagement with the core element, said process comprising pressing into the surface of the core element a stamping that is essentially complementary to the shape of the inner surface of the endoprosthesis when in contracted state.
Claim 20
Dependent Claim
113 words
A process for providing a locking attachment between the outer surface of an elongate core element and a tubular self-expanding endoprosthesis in radially contracted state, said elongate core element being for use in an endoprosthesis implanting device which includes an outer tubular body that at least partially surrounds the core element and is movable longitudinally in relation thereto, the endoprosthesis being held in radially contracted state between the outer body and the core element and in locking engagement with the core element, said process comprising pressing into the surface of the core element a stamping that is essentially complementary to the shape of the inner surface of the endoprosthesis when in contracted state.
Claim 21
Dependent Claim
20 words
A process according to claim 15 wherein said stamping is formed on the surface of the core element by casting.
Claim 22
Dependent Claim
22 words
A process as claimed in claim 15 wherein said stamping is formed in the surface of the core element by thermal action.
Claim 23
Dependent Claim
22 words
A process according to claim 15 wherein said stamping is formed by pressing the endroprosthesis when in contracting condition into the surface.
Claim 24
Dependent Claim
24 words
A process according to any one of claims 15 to 18 wherein said stamping is formed in a coating carried by said core element.
Claim 25
Dependent Claim
22 words
A process according to claim 19 wherein said coating is provided by a tubular sheet that is shrunk onto said core element.
Claim 26
Dependent Claim
148 words
The process of preparing an implantable device comprising: providing an elongate inner core element having an outer surface; providing a tubular outer body that can be moved in relation to said core element and that at least partially surrounds said core element; providing a stamping in the core element in accordance with the process of claim 1; inserting the individual prosthesis in folded radially contracted condition around the core element with its proximal end on an area of the core element in which there is no stamping; pushing the outer tubular body forwardly until it encloses the proximal end of the folded endroprosthesis so that the latter is secured in position by the outer tubular body which presses it into the stamping in the core element; and fully enclosing the folded endroprosthesis by advancing the tubular outer body forwardly to engage the distal end of the core element.
Claim 27
Dependent Claim
19 words
A process according to claim 21 wherein said stamping is formed in a coating carried by said core element.
Claim 28
Dependent Claim
22 words
A process according to claim 22 wherein said coating is provided by a tubular sheet that is shrunk onto said core element.
References Cited (Backward Citations)
No citation records indexed.
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