80 results about "Atrial septal defects" patented technology

The present invention provides a device for occluding an anatomical aperture, such as an atrial septal defect (ASD) or a patent foramen ovale (PFO). The occluder includes two sides connected by a central tube. The occluder is formed from a tube, which is cut to produce struts in each side. Upon the application of force, the struts deform into loops. The loops may be of various shapes, sizes, and configurations, and, in at least some embodiments, the loops have rounded peripheries. In some embodiments, at least one of the sides includes a tissue scaffold. The occluder further includes a catch system that maintains its deployed state in vivo. When the occluder is deployed in vivo, the two sides are disposed on opposite sides of the septal tissue surrounding the aperture and the catch system is deployed so that the occluder exerts a compressive force on the septal tissue and closes the aperture.

Devices, delivery systems and delivery techniques for an occlusion device for the closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. The devices, delivery systems and delivery techniques relate particularly to, but are not limited to, a patent foramen ovale (PFO) occluder made from a polymer tube. Specifically, a petal-shaped occluder with a catch system is provided within a delivery sheath. In certain embodiments, the delivery system includes a first securement system for securing a first end of the occluder and a second securement system for securing a second end of the occluder to a delivery catheter and a delivery wire contained in the delivery system. The securement enable the deployment (and retrieval) of the device. The securement systems enable pushing and pulling of respective ends of the occluder to expand and contract the device by varying its axial length. In one aspect, the first securement system employs a threaded connection and the second securement system employs a suture connection. In another aspect, the first securement system employs a threaded connection and the second securement system employs a collet finger connection. The securement systems are detached when the device has been properly positioned. The securement systems can be manipulated by control systems provided in the control portion of the delivery system.

The present invention provides a device for occluding an anatomical aperture, such as an atrial septal defect (ASD) or a patent foramen ovale (PFO). The occluder includes two sides connected by a central tube. The occluder is formed from a tube, which is cut to produce struts in each side. Upon the application of force, the struts deform into loops. The loops may be of various shapes, sizes, and configurations, and, in at least some embodiments, the loops have rounded peripheries. In some embodiments, at least one of the sides includes a tissue scaffold. The occluder further includes a catch system that maintains its deployed state in vivo. When the occluder is deployed in vivo, the two sides are disposed on opposite sides of the septal tissue surrounding the aperture and the catch system is deployed so that the occluder exerts a compressive force on the septal tissue and closes the aperture.

The present invention provides a device for occluding an anatomical aperture, such as an atrial septal defect (ASD) or a patent foramen ovale (PFO). The occluder includes two sides connected by a central tube. A tissue scaffold material is disposed on the occluder. The occluder is formed from a tube, which is cut to produce struts in each side. Upon the application of force, the struts deform into loops. The loops may be of various shapes, sizes, and configurations, and, in at least some embodiments, the loops have rounded peripheries. In some embodiments, at least one side of the occluder includes a tissue scaffold. The occluder further includes a catch system that maintains its deployed state in vivo. When the occluder is deployed in vivo, the two sides are disposed on opposite sides of the septal tissue surrounding the aperture and the catch system is deployed so that the occluder exerts a compressive force on the septal tissue and closes the aperture.

Disclosed is a closure catheter, for closing a tissue opening such as an atrial septal defect, patent foreman ovale, or the left atrial appendage of the heart. The closure catheter carries a plurality of tissue anchors, which may be deployed into tissue surrounding the opening, and used to draw the opening closed. Methods are also disclosed.

A noninvasive trans-catheter method and apparatus for remote suture placement can be used in a variety of inner cardiac applications. For example, a method of non-invasive transcatheter atrial septal defect repair comprises the steps of: advancing a positioning member along a catheter into the Atrial Septal Defect, wherein at least one suture deploying lumen is coupled to the positioning member with a piercing member within the suture deploying lumen; deploying the positioning member within the Atrial Septal Defect to align each suture deploying lumen with tissue adjacent the Atrial Septal Defect; and piercing the tissue adjacent the Atrial Septal Defect with the piercing member to secure a suture line through the tissue. A repair patch may be advanced along suture lines to repair the defect and secured into place with the suture lines. The apparatus is also applicable for left atrial appendage closure, mitral valve repair and pacemaker electrode placement.

An atrial septal occluder device for repairing an atrial septal defect in a human heart includes an elongated catheter for insertion into and moved along a blood vessel and into the heart of a patient. The catheter includes a head portion, a tail portion and a neck portion between the head and tail portions. The neck portion is about 1 cm in length and 2 to 4 mm in diameter. The device also includes an Amplatzer ASO removably fixed to the head of the device and a moveable neck portion for positioning the ASO with respect to the ASD and an activator for closing the ASO over the ASD from outside of the patient's body.

A measuring device for measuring tunnel defects in tissue is disclosed. The measuring device can size the defect to aid future deployment of a tissue distension device. Exemplary tunnel defects are atrial septal defects, patent foramen ovales, left atrial appendages, mitral valve prolapse, and aortic valve defects. Methods for using the same are disclosed.

A device for the repair of tissue and methods of use and manufacturing thereof are described herein. Applications for the use of the device include, e.g., repair of atrial septal defects (ASD), patent foramen ovale (PFO), left atrial appendage closure and stent graft fixation among other applications throughout the anatomy. The implant portion of the device is available in a variety of sizes and configurations to accommodate the vast complexity of the target anatomy.

The present invention is directed towards implantable, inflatable, bioabsorbable medical prostheses. In particular, the present invention relates to an implantable, inflatable, bioabsorbable method and device for occluding septal defects such as an atrial septal defect. A double button shaped device is contained in a catheter to allow for easy positioning and re-positioning of the apparatus to ensure proper placement and deployment. The device is charged with a filling solution so that it temporarily stabilizes the defect for a period of time typically varying from weeks to a year while it provides a structure to support natural tissue growth. The device is eventually replaced by natural tissue as it degrades and is absorbed or eliminated from the body by natural processes.

An atrial septal occluder device for repairing an atrial septal defect in a human heart includes an elongated catheter for insertion into and moved along a blood vessel and into the heart of a patient. The catheter includes a head portion, a tail portion and a neck portion between the head and tail portions. The neck portion is about 1 cm in length and 2 to 4 mm in diameter. The device also includes an Amplatzer ASO removably fixed to the head of the device and a moveable neck portion for positioning the ASO with respect to the ASD and an activator for closing the ASO over the ASD from outside of the patient's body.

The invention relates to an atrial septal defect occluder woven from degradable materials, which pertains to a medical apparatus technical field and comprises a bracket and membrane material inserted to the bracket and used for block blood from passing through; the bracket is made from degradable polymeric monofilament or degradable polymeric monofilaments together with shape memory alloy wires; the shape memory alloy wires are encircled outside a contour formed by the degradable polymeric monofilaments. In the atrial septal defect occluder, degradable polymeric material is adopted to completely or partially replace traditional Ni-Ti shape memory alloy. The atrial septal defect occluder of the invention is characterized by partial or complete biodegradability which means the atrial septal defect occluder can be partially or completely decomposed to small molecules innoxious to human body after being implanted in human body and then the small molecules are discharged from the human body so as to reduce reject reaction of human body and to improve the biocompatibility of interventional therapy materials.