US6719768B1 — Magnetic components for use in forming anastomose…

Claim 1

Independent Claim 116 words

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.

Claim 2

Independent Claim 116 words

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.

Claim 3

Dependent Claim 16 words

The device of claim 1 , wherein the housing provides a hermetically-sealed enclosure containing the component.

Claim 4

Dependent Claim 12 words

The device of claim 1 , wherein the housing-comprises a metallic material.

Claim 5

Dependent Claim 18 words

The device of claim 3 , wherein the housing comprises a plurality of titanium members joined by welding.

Claim 6

Dependent Claim 23 words

The device of claim 1 , wherein the housing includes an indicator of the polarity of the magnetic field produced by the component.

Claim 7

Independent Claim 75 words

A device adapted to be coupled to tissue using magnetic force, the device comprising: 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.

Claim 8

Independent Claim 75 words

A device adapted to be coupled to tissue using magnetic force, the device comprising: 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.

Claim 9

Dependent Claim 18 words

The device of claim 6 , wherein the magnetic force-increasing mechanism has a magnetic permeability greater than 1.0.

Claim 10

Dependent Claim 18 words

The device of claim 7 , wherein the magnetic force-increasing mechanism has a magnetic permeability greater than 100.

Claim 11

Dependent Claim 24 words

The device of claim 7 , wherein the magnetic force-increasing mechanism is configured to alter the magnetic flux density of the first securing component.

Claim 12

Dependent Claim 21 words

The device of claim 9 , wherein the magnetic force-increasing mechanism is configured to concentrate magnetic flux in a desired location.

Claim 13

Dependent Claim 40 words

The device of claim 10 , wherein the second securing component is plate-shaped and the force-increasing mechanism comprises a separate channel-shaped strip of material disposed along and forming an extension of at least one edge of the first securing component.

Claim 14

Dependent Claim 48 words

The device of claim 6 , wherein when the first securing component is positioned a given distance from the second securing component the magnetic force attracting the components is from about 5% to about 75% higher than the magnetic force attracting the components without the flux concentration mechanism.

Claim 15

Dependent Claim 45 words

The device of claim 12 , wherein when the first securing component is positioned a given distance from the second securing component the magnetic force attracting the components is at least 20% higher than the magnetic force attracting the components without the flux concentration mechanism.

Claim 16

Dependent Claim 46 words

The device of claim 12 , further comprising a second securing component sized and configured generally complementarily to the first securing component, wherein the second securing component is capable of producing a magnetic field that attracts the first securing component and includes a flux concentration mechanism.

Claim 17

Dependent Claim 31 words

The device of claim 14 , wherein the first securing component includes a portion for mechanically engaging the second securing component to couple the securing components mechanically and by magnetic force.

Claim 18

Independent Claim 83 words

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: 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.

Claim 19

Independent Claim 83 words

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: 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.

Claim 20

Dependent Claim 27 words

The device of claim 16 , wherein the indicator comprises a visual marker on the one securing component that indicates a selected polarity of the magnetic field.

Claim 21

Dependent Claim 54 words

The device of claim 16 , further comprising a delivery device supporting the one securing component, and wherein the indicator comprises a predetermined portion of the one securing component that is aligned with the delivery device to ensure that the one securing component is located with the selected polarity oriented in a desired position.

Claim 22

Dependent Claim 58 words

The device of claim 16 , further comprising a second securing component that produces a magnetic field and is attracted to the one securing component, wherein the second component also has an indicator that indicates the polarity of the magnetic field produced by the second component to ensure that the. securing components are positioned to ensure their attraction.

Claim 23

Dependent Claim 54 words

The device of claim 19 , wherein the one securing component is adapted to be coupled to a target vessel to form a magnetic port that communicates with the vessel lumen, and the second securing component is adapted to be coupled to the one securing component to form a vascular anastomosis using magnetic force.

Claim 24

Dependent Claim 19 words

The device of claim 16 , wherein the one securing component comprises an electromagnet coupled to a power source.

Claim 25

Independent Claim 14 words

The device of 21 , wherein the electromagnet is contained in a protective housing.

Claim 26

Independent Claim 14 words

The device of 21 , wherein the electromagnet is contained in a protective housing.

Claim 27

Independent Claim 131 words

A device for forming a port in a first hollow body having a lumen, the device comprising: 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.

Claim 28

Independent Claim 131 words

A device for forming a port in a first hollow body having a lumen, the device comprising: 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.

Claim 29

Dependent Claim 34 words

The device of claim 23 , wherein the collapsible structure comprises a tube with self-expanding arms that are generally coplanar for contacting the wall of the first hollow body when the arms are expanded.

Claim 30

Dependent Claim 22 words

The device of claim 24 , wherein the tube defines an opening that is aligned with the opening in the securing component.

Claim 31

Dependent Claim 35 words

The device of claim 23 , wherein the securing component has a laminated structure and includes a layer of biocompatible material to enhance sealing of the opening in the wall of the first hollow body.

Claim 32

Dependent Claim 26 words

The device of claim 26 , wherein the attachment portion is secured to a separate member formed of a material capable of producing a magnetic field.

Claim 33

Dependent Claim 27 words

The device of claim 23 , wherein the mechanical attachment portion is adapted to provide the sole attachment between the securing component and the first hollow body.

Claim 34

Dependent Claim 29 words

The device of claim 23 , wherein the opening in the securing component has a shape selected from the group consisting of circular, elliptical, racetrack, football and canoe-shaped configurations.

Claim 35

Dependent Claim 121 words

A delivery device in combination with a component for forming an anastomosis, the combination comprising: 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.

Claim 36

Dependent Claim 121 words

A delivery device in combination with a component for forming an anastomosis, the combination comprising: 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.

Claim 37

Dependent Claim 37 words

The combination of claim 30 , further comprising a portion for supporting a second component, and wherein the support portion and the retaining portion of the delivery device are configured to contact different areas of the component.

Claim 38

Dependent Claim 20 words

The combination of claim 30 , wherein the retaining portion comprises a rotatable rod with a portion contacting the component.

Claim 39

Dependent Claim 35 words

The combination of claim 30 , wherein the retaining portion comprises a wedge slidably disposed with respect to the support portion, the wedge contacting the component when the retaining portion is in the first position.

Claim 40

Dependent Claim 37 words

The combination of claim 30 , wherein the delivery device has a delivery end adapted to support at least one-component, and the delivery end is laterally offset with respect to a longitudinal axis of the delivery device.

Claim 41

Dependent Claim 33 words

The combination of claim 34 , wherein the delivery end has a notch adapted to receive tissue as the device is being used to introduce the component into the lumen of a vessel.

Claim 42

Dependent Claim 21 words

The combination of claim 30 , wherein the component comprises a magnetic material and the delivery device comprises a ferromagnetic material.

Claim 43

Independent Claim 76 words

A method for increasing the magnetic force between first and second anastomotic securing components, the method comprising steps of: (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.

Claim 44

Independent Claim 76 words

A method for increasing the magnetic force between first and second anastomotic securing components, the method comprising steps of: (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.

Claim 45

Dependent Claim 33 words

The method of claim 32 , wherein step (b) is performed by altering the construction of at least one of the first and second securing components to concentrate magnetic flux between the components.

Claim 46

Dependent Claim 37 words

The method of claim 37 , wherein step (b) is performed by providing the first and second securing components with respective flux concentration mechanisms that are formed of a material having a higher magnetic permeability than air.

Claim 47

Independent Claim 148 words

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: (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.

Claim 48

Independent Claim 148 words

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: (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.

Claim 49

Dependent Claim 33 words

The method of claim 40 , wherein step (c) is performed by pre-loading the securing component on a deliver device in a predetermined position that properly orients the polarity of the magnetic field.

Claim 50

Dependent Claim 30 words

The method of claim 41 , wherein the delivery device removably supports the one securing component to allow removal and reloading of the component if the polarity is improperly oriented.

Claim 51

Independent Claim 97 words

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, 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.

Claim 52

Independent Claim 97 words

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, 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.

Claim 53

Independent Claim 94 words

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 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.

Claim 54

Independent Claim 94 words

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 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.

Claim 55

Independent Claim 144 words

A method of forming an anastomosis between a first vessel and a second vessel, the method comprising steps of: 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.

Claim 56

Independent Claim 144 words

A method of forming an anastomosis between a first vessel and a second vessel, the method comprising steps of: 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.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2007-04-13	2007-10-13	2008-04-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2011-04-13	2011-10-13	2012-04-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2015-04-13	2015-10-13	2016-04-13	$7700.00	Window Closed / Lapsed

Magnetic components for use in forming anastomoses, creating ports in vessels and closing openings in tissue

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