摘要:
Devices and methods for delivering conduits into the wall of a patient's heart to communicate a coronary vessel with a heart chamber. The devices are passed through the coronary vessel and the heart wall to place the conduit and establish a blood flow path between the vessel and the heart chamber. Additional devices and methods are provided for removing tissue from a coronary vessel or the heart wall to establish a flow path between the coronary vessel in communication with the heart chamber.
摘要:
Devices and methods utilized in performing transmyocardial coronary bypass include retractors used to engage and support myocardial tissue, and mechanisms for supporting coronary vessels so as to allow precise entry into a vessel lumen. In addition, various conduits are provided having a configuration that permits their positioning in a heart wall to place a coronary vessel in communication with a heart chamber.
摘要:
Implantable prosthetic valve systems and methods for implanting them are provided. Magnets are employed within one or more components of the valve systems to facilitate anchoring of the prosthetic valve at a target implant site, delivery of the prosthetic valve to the target implant site or both.
摘要:
Devices and methods for placing a conduit in fluid communication with a target vessel to communicate the target vessel with a source of blood. A conduit is coupled to the target vessel by first and second securing components that compress or sandwich the vessel wall. The conduit may be preshaped to assume a desired orientation when in an unbiased state, for example, to allow the conduit to be deformed during delivery and then regain its desired orientation once which is regained when deployed. The first and second securing components may be any shape but are preferably elongated in the direction of the vessel axis, e.g., elliptical or rectangular, such that a minimum amount of material is present at the outlet to closely approximate the cross-sectional area of the native target vessel. The securing components do not significantly occlude the target vessel lumen, may be secured to the vessel wall in non-penetrating fashion, and provides a fluid-tight seal around the attachment site. The conduit may comprise tissue, synthetic material, etc., and one or both securing components may be constructed or provided with means for attaching an autologous vessel.
摘要:
Methods and devices using magnetic force to form an anastomosis between 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. Magnetic anastomotic components may be attached to the exterior of a vessel, e.g., by adhesive, without extending into the vessel lumen. Various magnetic component configurations are provided and may have different characteristics, for example, the ability to match the vessel curvature or to frictionally engage the vessel.
摘要:
Anastomotic components may be attached to hollow bodies or vessels by magnetic or mechanical force to create an anastomosis, form a port in a vessel, or repair a diseased vessel lumen. Anastomoses are created by coupling a first connection to an end of a vessel and then attracting it to a second connector secured to the side wall of another vessel. The connection between the first and second connectors may be solidly magnetic, solely mechanical, or a combination thereof. Also disclosed are methods and devices for treating diseased vessel lumens, for example abdominal aortic aneurysm. A plurality of docking members is attached to the vessel at solicited positions, and then one or more grafts is secured to the docking members in any suitable manner.
摘要:
Implantable prosthetic valve systems and methods for implanting them are provided. Magnets are employed within one or more components of the valve systems to facilitate anchoring of the prosthetic valve at a target implant site, delivery of the prosthetic valve to the target implant site or both.
摘要:
Implantable prosthetic valve systems and methods for implanting them are provided. Magnets are employed within one or more components of the valve systems to facilitate anchoring of the prosthetic valve at a target implant site, delivery of the prosthetic valve to the target implant site or both.
摘要:
Implantable prosthetic valve systems and methods for implanting them are provided. Magnets are employed within one or more components of the valve systems to facilitate anchoring of the prosthetic valve at a target implant site, delivery of the prosthetic valve to the target implant site or both.
摘要:
Anastomotic components may be attached to hollow bodies or vessels by magnetic or mechanical force to create an anastomosis, form a port in a vessel, or repair a diseased vessel lumen. Anastomoses are created by coupling a first connection to an end of a vessel and then attracting it to a second connector secured to the side wall of another vessel. The connection between the first and second connectors may be solidly magnetic, solely mechanical, or a combination thereof. Also disclosed are methods and devices for treating diseased vessel lumens, for example abdominal aortic aneurysm. A plurality of docking members is attached to the vessel at solicited positions, and then one or more grafts is secured to the docking members in any suitable manner.