Devices and methods for atrial appendage exclusion
First Claim
Patent Images
1. A device for occluding fluid flow between two walls of tissue in a patient, said device comprising:
- a base configured to apply compressive force against a first of the two walls; and
at least one opposing member configured to apply compressive force against a second of the two walls upon installing the device, wherein, when installed, said base and said at least one opposing member compress the two walls therebetween, and a gap of predetermined dimension is established between said base and said at least one opposing member to sufficiently compress the two walls to occlude fluid flow therebetween, while preventing an establishment of a compression force that meets or exceeds a compression force to cause tissue necrosis.
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Accused Products
Abstract
Devices, tools and methods for occluding fluid flow between two walls of tissue in a patient. Two walls of tissue are compressed together with sufficient compressive force to prevent fluid flow between the two walls, while ensuring that the compressive force is not so great as to cause tissue necrosis. The devices, tools and methods may be carried out using minimally invasive surgical techniques, such as in reduced-access surgical sites. Devices, tools and methods are provided for occluding an atrial appendix.
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Citations
93 Claims
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1. A device for occluding fluid flow between two walls of tissue in a patient, said device comprising:
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a base configured to apply compressive force against a first of the two walls; and at least one opposing member configured to apply compressive force against a second of the two walls upon installing the device, wherein, when installed, said base and said at least one opposing member compress the two walls therebetween, and a gap of predetermined dimension is established between said base and said at least one opposing member to sufficiently compress the two walls to occlude fluid flow therebetween, while preventing an establishment of a compression force that meets or exceeds a compression force to cause tissue necrosis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A device for occluding fluid flow between two walls of tissue in a patient, said device comprising:
a springform clip comprising at least three arms of substantially equal length, formed by bending an elongated member of spring metal, said arms being elastically deformable to insert the tissue walls therebetween, and having sufficient length to traverse an entire width of the tissue walls defining a passageway through which fluid flow occurs, wherein, upon releasing said arms from a deformed, open configuration, said arms elastically spring back toward an undeformed configuration to compress the tissue walls with sufficient force to occlude fluid flow therebetween, while preventing an establishment of a compression force that meets or exceeds a compression force to cause tissue necrosis. - View Dependent Claims (38)
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39. A device for occluding fluid flow between two walls of tissue in a patient and a tool for installing said device, comprising:
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a base configured to apply compressive force against a first of the two walls; at least one opposing member configured to apply compressive force against a second of the two walls upon installing the device, wherein, when installed, said base and said at least one opposing member compress the two walls therebetween, and a gap of predetermined dimension is established between said base and said at least one opposing member to sufficiently compress the two walls to occlude fluid flow therebetween, while preventing an establishment of a compression force that meets or exceeds a compression force to cause tissue necrosis; and a tool configured to interface with at least one of said base and at least one opposing member, to drive said device in compression against the tissue walls. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. An assembly for performing an occlusion of fluid flow between two walls of tissue in a patient, said assembly comprising:
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a device configured to maintain the two walls under sufficient compression to prevent fluid flow therebetween; and a tool configured to guide installation of said device into a final configuration where said device maintains the two walls under said sufficient compression. - View Dependent Claims (62, 63, 64)
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65. An assembly for performing an occlusion of fluid flow between two walls of tissue in a patient, said assembly comprising:
a multi-lumen endoscopic tool including an endoscope positionable in a lumen of said multi-lumen tool;
a steerable suction tool positionable in another lumen of said multi-lumen tool such that a distal contact surface extends distally of a distal end of the multi-lumen tool; and
a snare device insertable through another lumen of said multi-lumen tool, such that a snare at a distal end of said snare tool extends distally of said distal end of the multi-lumen tool.
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66. A tissue wall coating device for minimizing bleeding caused by an incision or puncture of the tissue wall, said device comprising:
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a main body in the shape of an elastomeric sack being closed at one end and having an opening at a base portion end; and a ligature extending around said base portion end and configured to constrict said opening at said base portion end.
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67. A method of performing an occlusion of fluid flow between two walls of tissue in a patient, said method comprising:
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compressing the two walls together under compression force sufficient to prevent fluid flow between the two walls, but not so great to cause tissue necrosis; and maintaining said compression force by installation of a device configured to maintain the walls between at least two contact surfaces separated from one another by a gap of predetermined dimension. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88)
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89. A method of performing an occlusion of fluid flow between two walls of tissue in a patient through a small opening in the patient, said method comprising:
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inserting a multi-lumen endoscopic tool through the small opening in the patient, toward a location of the two walls of tissue to be occluded; identifying the location of the two walls of tissue to be occluded by viewing through an endoscope inserted in one of the lumens of the multi-lumen tool, and maneuvering a distal end of the multi-lumen tool to a reduced-access sited containing the two walls of tissue; snaring the tissue walls with a snare extending at the distal end of a snare tool inserted through another lumen of the multi-lumen device; tightening the snare from a location outside of the patient; fixing the snare in the tightened configuration to maintain compression of the two walls; and cutting the fixed snare away from the snare device. - View Dependent Claims (90, 91)
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92. A method of reducing bleeding during a surgical procedure on an atrial appendix, said method comprising:
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placing an elastomeric sack over the atrial appendix to form a slightly compressive interface between said sack and the atrial appendix; constricting a base opening of the sack by drawing on a ligature passing through the base opening, and thereby compressing the walls of tissue at the location contacted by the base opening; and fixing said ligature relative to the base opening to maintain said constricting. - View Dependent Claims (93)
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Specification