Magnetically operated closure for an intestinal orifice
First Claim
1. In combination with a magnetically secured closure for the orifice of an intestine, havingan implantate includinga permanent magnet shaped to at least in part surround the intestine for implantation in the vicinity of the orifice and being, with respect to the intestine--axially magnetized;
- a closure plug comprisinga core of magnetic material anda casing, surrounding the core, of a biologically compatible, compressible material, the casing being so shaped that the core surrounded by it can assume an axial equilibrium position with respect to the diametrically and axially directed magnetic interaction forces between the permanent magnet of the implantate, and the core of the closure plug.
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Accused Products
Abstract
An implantate comprising an essentially annular permanent magnet which is axially magnetized is located in the vicinity of an orifice from an intestine, surrounding the intestine. A plug element having a core of magnetic material and an outer casing is inserted into the intestinal orifice. The casing is essentially cylindrical and is made of a material which is radially compressible, and inserted in the orifice, the magnetic material within the core thereof -- which is preferably removable -- in cooperation with the magnetic field from the permanent magnet locating the plug element within the orifice to establish an axial equilibrium position and hold the plug element in position closing the orifice.
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Citations
14 Claims
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1. In combination with a magnetically secured closure for the orifice of an intestine, having
an implantate including a permanent magnet shaped to at least in part surround the intestine for implantation in the vicinity of the orifice and being, with respect to the intestine--axially magnetized; -
a closure plug comprising a core of magnetic material and a casing, surrounding the core, of a biologically compatible, compressible material, the casing being so shaped that the core surrounded by it can assume an axial equilibrium position with respect to the diametrically and axially directed magnetic interaction forces between the permanent magnet of the implantate, and the core of the closure plug. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12)
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10. A closure device for an intestinal orifice, comprising an annular implantate, which includes at least one axially magnetized permanent magnet shaped for implantation to surround a zone of the intestine adjacent to its orifice;
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and a closure plug which includes a body of magnetic material and a casing surrounding it with a radially peripheral sealing surface, the plug being essentially cylindrical and shaped such that when the closure plug is inserted into the intestinal orifice its casing tends to center the body radially in the intestine; and
wherein the magnetization of the magnetic system formed by the permanent magnet of the implantate and the body of magnetic material holds said plug in an axial normal position in the body and forming an axial equilibrium position with respect to magnetic forces of interaction between the implantate and the bodywhereby, upon movement of the plug out of this equilibrium position, magnetic forces are produced which tend to draw the body back into the equilibrium position. - View Dependent Claims (11, 13, 14)
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Specification