Magnetic components for use in forming anastomoses, creating ports in vessels and closing openings in tissue
First Claim
1. A device for forming a magnetic port in a hollow body having a lumen, the device comprising:
- a component capable of producing a magnetic field and having an opening configured to be placed in communication with the lumen of the hollow body; and
a housing disposed on an exterior of the component, the housing providing a substantially sealed enclosure containing the component, the housing having a plurality of members cooperating to provide the sealed enclosure containing the component, wherein one housing member is a dish and another housing member is configured to close the dish and seal the component therein;
wherein the housing is formed of a biocompatible material adapted to be implanted in a patient.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and devices for forming an anastomosis between hollow bodies utilize magnetic force to couple anastomotic securing components and connect the lumens of the hollow bodies. End-to-side, side-to-side and end-to-end anastomoses can be created without using suture or any other type of mechanical fasteners, although such attachment means may be used in practicing some aspects of the invention. The securing components have the ability to produce a magnetic field and may include materials or assemblies. A component may also be used to form a port into the lumen of a vessel, the component being attached to the vessel by mechanical and/or magnetic means. Magnetic components may include means for concentrating the magnetic flux between respective components to increase the attraction force, thereby enhancing the security of the anastomosis. Also, rather than form a port communicating with a lumen of a vessel or other cavity, the components may have an occlusion surface and be used to close an opening in tissue, e.g., an atrial septal defect.
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Citations
45 Claims
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1. A device for forming a magnetic port in a hollow body having a lumen, the device comprising:
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a component capable of producing a magnetic field and having an opening configured to be placed in communication with the lumen of the hollow body; and
a housing disposed on an exterior of the component, the housing providing a substantially sealed enclosure containing the component, the housing having a plurality of members cooperating to provide the sealed enclosure containing the component, wherein one housing member is a dish and another housing member is configured to close the dish and seal the component therein;
wherein the housing is formed of a biocompatible material adapted to be implanted in a patient. - View Dependent Claims (2, 3, 4, 5)
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6. A device adapted to be coupled to tissue using magnetic force, the device comprising:
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a first securing component capable of producing a magnetic field, the first securing component being adapted to attract a second securing component that is capable of producing a magnetic field; and
a magnetic force-increasing mechanism for increasing the magnetic force attracting the first and second securing components when the first securing component is positioned in proximity to the second securing component. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device adapted to be coupled to a blood vessel having a lumen so as to produce a magnetic field adjacent the blood vessel, the device comprising:
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at least one securing component sized and configured to be secured to a blood vessel having a lumen, the one securing component being capable of producing a magnetic field;
wherein the one securing component has an indicator that indicates the polarity of the magnetic field to a user carrying out a procedure on the blood vessel. - View Dependent Claims (17, 18, 19, 20, 21)
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22. The device of 21, wherein the electromagnet is contained in a protective housing.
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23. A device for forming a port in a first hollow body having a lumen, the device comprising:
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a securing component having an opening adapted to be placed in communication with an opening in the wall of the first hollow body so as to be in communication with the lumen of the first hollow body; and
a mechanical attachment portion configured to secure the component to the first hollow body in a desired position, wherein the mechanical attachment portion includes a structure that is at least partially collapsible for delivery through the opening in the wall of the first hollow body and then expandable to engage the wall of the first hollow body;
wherein the securing component is configured to produce a magnetic field adjacent the opening in the first hollow body. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A delivery device in combination with a component for forming an anastomosis, the combination comprising:
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at least one component having an opening adapted to be placed in communication with a lumen of a vessel in a patient'"'"'s body, the component being capable of producing a magnetic field; and
a delivery device including a support portion supporting the component and a retaining portion that is movable with respect to the support portion, wherein the retaining portion is placed in a first position to retain the component and is moved from the first position to release the component;
wherein the retaining portion is movable with respect to the support portion in a direction selected from the group consisting of axial and rotary directions. - View Dependent Claims (31, 32, 33, 34, 35, 36, 38)
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37. A method for increasing the magnetic force between first and second anastomotic securing components, the method comprising steps of:
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(a) providing first and second anastomotic securing components each of which is capable of producing a magnetic field, the first and second securing components having respective openings adapted to be placed in communication with each other; and
(b) increasing the magnetic force between the first and second securing components by concentrating magnetic flux. between the securing components. - View Dependent Claims (39)
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40. A method for coupling a securing component to a target vessel in order to form a magnetic port communicating with a lumen of the target vessel, the method comprising steps of:
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(a) providing first and second anastomotic securing components each of which is capable of producing a magnetic field, at least one of the securing components having an opening adapted to be placed in communication with the lumen of the target vessel;
(b) coupling the one securing component to the target vessel with the opening in the one securing component communicating with the target vessel lumen by positioning the securing components against opposite surfaces of the wall of the target vessel; and
(c) prior to completing step (b) confirming the orientation of the polarity of the magnetic field produced by the one securing component by checking a visual marker carried on at least one of the securing components. - View Dependent Claims (41, 42)
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43. A device for forming a magnetic port in a hollow body having a lumen, the device comprising:
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a component capable of producing a magnetic field and having an opening configured to be placed in communication with the lumen of the hollow body; and
a housing disposed on an exterior of the component, the housing providing a substantially sealed enclosure containing the component, wherein the housing comprises a metallic material, the housing also comprises a plurality of titanium members joined by welding;
wherein the housing is formed of a biocompatible material adapted to be implanted in a patient.
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44. A device for forming a magnetic port in a hollow body having a lumen, the device comprising:
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a component capable of producing a magnetic field and having an opening configured to be placed in communication with the lumen of the hollow body; and
a housing disposed on an exterior of the component, the housing providing a substantially sealed enclosure containing the component, the housing including an indicator of the polarity of the magnetic field produced by the component;
wherein the housing is formed of a biocompatible material adapted to be implanted in a patient.
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45. A method of forming an anastomosis between a first vessel and a second vessel, the method comprising steps of:
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providing a first anastomotic component and a second anastomotic component, the first and second anastomotic components being magnetically attracted to one another, the first anastomotic component including a mechanical attachment portion having an expandable structure;
introducing the expandable structure of the first anastomotic component through an opening in a first vessel with the expandable structure being in a collapsed condition;
expanding the expandable structure of the first anastomotic component to engage the wall of the first blood vessel thereby coupling the first anastomotic component to the first vessel;
coupling the second anastomotic component to a second vessel; and
moving the second anastomotic component toward the first component so that magnetic attraction between the first and second anastomotic components couples the first and second vessels together.
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Specification