Erodible vessel sealing device without chemical or biological degradation
AssigneeRadi Medical Systems AB
InventorsLars Tenerz, Dan Åkerfeldt, Torbjörn Mathisen
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Abstract
The present invention provides a dissolvable medical sealing device (3, 4; 6, 7; 9) for closing a wound in vessel. A sealing device (3, 4, 6, 7, 9) according to the invention is made of a material that dissolves by means of physical processes, rather than by means of chemical or biological processes. Such a sealing device (3, 4; 6, 7; 9) can be made of polyethylene glycol, polypropylene glycol, copolymers containing ethylene glycol and propylene glycol, polyvinyl alcohol or polyvinyl pyrolidone, or any combinations thereof.
Claims22
An implantable wound closure device for closing a wound in a vessel, comprising:
- a first sealing device configured to be positioned against an inner surface of a wall of the vessel, and
- a fastener fastened to the first sealing device, wherein the fastener is configured to pass through the wound and to keep the first sealing device in place,
- wherein the first sealing device is made of a polymer material,
- wherein the first sealing device is configured to dissolve by erosion caused by physical processes occurring within the vessel without chemical or biological degradation,
- wherein, upon implantation, the first sealing device is configured to dissolve by erosion caused by the physical processes occurring within the vessel at at least one exposed surface of the first sealing device that is exposed to an interior of the vessel, and
- wherein the first sealing device consists of one or more of the following:
- polypropylene glycol, polyacrylic acid, polyvinyl methyl ether-maleic anhydride, xanthan gum, guar gum, and pectin.
An implantable wound closure device for closing a wound in a vessel, comprising:
- a first sealing device configured to be positioned against an inner surface of a wall of the vessel, and
- a fastener fastened to the first sealing device, wherein the fastener is configured to pass through the wound and to keep the first sealing device in place,
- wherein the first sealing device is made of a polymer material,
- wherein the first sealing device is configured to dissolve by erosion caused by physical processes occurring within the vessel without chemical or biological degradation,
- wherein, upon implantation, the first sealing device is configured to dissolve by erosion caused by the physical processes occurring within the vessel at at least one exposed surface of the first sealing device that is exposed to an interior of the vessel, and
- wherein the first sealing device comprises at least 90% by weight of one or more of the following:
- polypropylene glycol, polyacrylic acid, polyvinyl methyl ether-maleic anhydride, xanthan gum, guar gum, and pectin.
Dependencies are inferred from the claim text.