Device for members for closing body passages
First Claim
1. A device for the temporary or permanent closing of a body passage or cavity in humans and animals, comprising:
- a member of a material which swells at least 20% when absorbing body fluids and which is substantially inert to body fluids and surrounding tissue, said member being dimensioned so as to be able to be introduced without any substantial pressure against the walls of the passage or cavity in the unswollen state of the member but to take up the whole cross-section of the passage or cavity in the swollen state and then to be held by pressure against the surrounding wall of the passage or cavity, at least one element incorporated in said device and having a number of external portions extending from a center portion of said element and provided with free ends, the element having its center portion and the innermost parts of the extending portions embedded in said member while the free ends of said portions extend outside the member at least in the unswollen state of the member, said portions being made of a material with such suitable stiffness that said portions spread out in a yielding manner towards the surrounding walls of the passage or cavity in such a manner that the portions tend to lock the member in its introduced position by pressure against the walls by means of said ends, with adaption to the passage or cavity, which ensures securing of the member even before it has developed any direct pressure against the surrounding walls due to its swelling.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for temporarily or permanently closing body passages or cavities in humans and animals and including a member (2) of a material which swells at least 20% by absorbing body fluids and which is substantially inert to body fluids and surrounding tissues, the member (2) being dimensioned so as to be able to be introduced with clearance into the passage or cavity in its unswollen state but to take up the whole cross-section of the passage or cavity in the swollen state and then to be held by pressure against the surrounding walls of the passage or cavity. The device also comprises an element (7) with outer portions (8) which, in the unswollen state of the member, project out from its surface and which are made of a material with such suitable stiffness that the element with said outer portions (8) spreads out, in a yielding manner, towards the surrounding walls of the passage or cavity in such a manner that the element tends to lock the member in its inserted position by pressure against the wall, which ensures holding of the member before it has developed any direct pressure against the surrounding wall through its swelling.
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Citations
10 Claims
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1. A device for the temporary or permanent closing of a body passage or cavity in humans and animals, comprising:
- a member of a material which swells at least 20% when absorbing body fluids and which is substantially inert to body fluids and surrounding tissue, said member being dimensioned so as to be able to be introduced without any substantial pressure against the walls of the passage or cavity in the unswollen state of the member but to take up the whole cross-section of the passage or cavity in the swollen state and then to be held by pressure against the surrounding wall of the passage or cavity, at least one element incorporated in said device and having a number of external portions extending from a center portion of said element and provided with free ends, the element having its center portion and the innermost parts of the extending portions embedded in said member while the free ends of said portions extend outside the member at least in the unswollen state of the member, said portions being made of a material with such suitable stiffness that said portions spread out in a yielding manner towards the surrounding walls of the passage or cavity in such a manner that the portions tend to lock the member in its introduced position by pressure against the walls by means of said ends, with adaption to the passage or cavity, which ensures securing of the member even before it has developed any direct pressure against the surrounding walls due to its swelling.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification