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US 12,364,480 B2Granted
Magnetic anastomosis device with opposing coil directionality
OwnerVirender K. Sharmainventor
Life of this patent
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Abstract
An anastomosis device includes magnets coupled to a wire capable of changing shape from a straight wire into a coil when deployed within a body. The coil exerts compressive force upon layers of tissue caught between loops of the coil. The compressive force is enhanced by attractive forces between magnets coupled with adjacent loops of the coil and causes the coil to cut through the tissue layers, creating an anastomosis. One end of the wire is preferably provided with a connecting member, such as a screw or a nut, for connecting with a delivery device. Positioned on or around the anastomosis device is an expandable drainage mechanism, such as a stent.
Claims22
An anastomosis device comprising:
- a sheath having a lumen;
- a wire, wherein said wire has a first state and a second state, wherein, in said first state, the wire is positioned within the lumen of the sheath and has a substantially linear form, wherein, in said second state, the wire is positioned outside the lumen of the sheath and forms a coil having at least a first loop and a second loop, and wherein said wire is adapted to transform from the first state to the second state after being deployed outside said sheath, and wherein the first loop is connected to the second loop by means of a bridging segment comprising a predefined length of the wire, wherein the bridging segment is adapted to enable the wire, upon changing from the first state to the second state, to coil into the first loop having a first coil directionality and to coil into the second loop having a second coil directionality, wherein the first coil directionality is either clockwise or counterclockwise, and wherein the second coil directionality is either counterclockwise or clockwise and is opposite of the first coil directionality;
- a plurality of magnets positioned over the first loop and the second loop, wherein each of said plurality of magnets has a second lumen through which said wire extends, wherein, in each of said first loop and second loop, a portion of adjacent magnets of said plurality of magnets are configured to not attach to each other, and wherein a portion of said plurality of magnets in the first loop are configured to attract a portion of said plurality of magnets in the second loop;
- and
- a drainage element, wherein the drainage element has a first end connected to a first portion of the wire and a second end connected to a second portion of the wire, wherein the drainage element is configured to be positioned in the sheath and have a compressed linear form when the wire is in the first state, wherein the drainage element is configured to have an expanded form when the wire is deployed outside the sheath, and wherein, when the drainage element is in the expanded form, an internal volume of the drainage element is configured to form a passageway between a first area in physical contact with the first loop and a second area in physical contact with the second loop.
2 more elements
An anastomosis device comprising:
- a sheath having a lumen;
- a wire comprising a first section and a second section and a connecting section between the first section and the second section wherein, when positioned in the lumen of the sheath, the wire has a substantially linear form, and, when deployed outside the lumen of the sheath, the wire forms a coil having at least a first loop formed from the first section and at least a second loop formed from the second section, and wherein the first section is configured to coil into the at least one first loop having a first coil directionality and the second section is configured to coil into the at least one second loop having a second coil directionality, wherein the first coil directionality is either clockwise or counterclockwise, and wherein the second coil directionality is either counterclockwise or clockwise and is opposite of the first coil directionality;
- a first plurality of magnets positioned over the first section of the wire;
- a second plurality of magnets positioned over the second section of the wire;
- and
- a drainage element, wherein the drainage element is physically coupled to the wire and positioned over the connecting section, wherein the drainage element is configured to have a compressed linear form when the wire is in the lumen of the sheath, wherein the drainage element is configured to have an expanded cylindrical form when the wire is deployed outside the sheath, and wherein, when the drainage element is in the expanded cylindrical form, an internal volume of the drainage element is configured to form a passageway between a first anatomical area in physical contact with the first loop and a second anatomical area in physical contact with the second loop.
3 more elements
Dependencies are inferred from the claim text.