Device for the implantation of self-expanding endoprostheses
First Claim
1. 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.
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Accused Products
Abstract
A device for implanting endoprostheses has a tubular outer body and an elongated core element placed inside of the outer body. To operate the device, both the core element and the tubular body are provided with handles at their proximal ends. In order to produce a form-locking connection between the endoprosthesis and the core element, the core element exhibits a region in which is impressed a stamping corresponding to the inner form of the endoprosthesis. As a result, there are a great number of form-locking meshing sites between the enclosed, folded endoprosthesis and the core element. A device with this type of design permits a partially released endoprostheses to be folded back up in a radially contracted state again by pushing the tubular body forward so that the endoprosthesis may be repositioned. In addition, sure and reliable operation is achieved by this type of stamping of the core element.
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Citations
14 Claims
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1. 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.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. 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.
- View Dependent Claims (10, 11, 12)
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13. 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.
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14. 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.
Specification