摘要:
A heart size measuring tool includes a tubular body, a flexible measuring cord having length indicia, a measuring cord support mechanism movable between retracted and extended states with respect to the body, and an actuating mechanism to move the measuring cord support mechanism. When in the retracted state the measuring cord support mechanism is positioned within the tubular body with the measuring cord in a collapsed position. When the measuring cord support mechanism is in the extended state the measuring cord extends around a portion of a heart to be measured. A scale on the body can be used in connection with the indicia on the measurement cord to provide a reading of the heart size.
摘要:
A heart size measuring tool includes a tubular body, a flexible measuring cord having length indicia, a measuring cord support mechanism movable between retracted and extended states with respect to the body, and an actuating mechanism to move the measuring cord support mechanism. When in the retracted state the measuring cord support mechanism is positioned within the tubular body with the measuring cord in a collapsed position. When the measuring cord support mechanism is in the extended state the measuring cord extends around a portion of a heart to be measured. A scale on the body can be used in connection with the indicia on the measurement cord to provide a reading of the heart size.
摘要:
A cardiac support device that can be efficiently implanted on a patient's heart. The cardiac support device includes a jacket for constraining cardiac expansion and one or more lubricious elements releasably secured with respect to an inside surface of the jacket.
摘要:
A delivery device for efficiently delivering a cardiac support device of the type having a jacket. The device includes a body, a deployment mechanism and an actuating mechanism. The deployment mechanism is for releasable connection to a cardiac support device and movable within the jacket between retracted and extended states to drive the jacket between collapsed and open configurations. At least portions of the deployment mechanism within the jacket have a lubricious surface to substantially reduce friction between the jacket and a heart onto which the jacket is being positioned. The actuating mechanism moves the deployment mechanism between the retracted and extended states.
摘要:
A delivery device for efficiently delivering a cardiac support device of the type having a jacket. The device includes a body, a deployment mechanism and an actuating mechanism. The deployment mechanism is for releasable connection to a cardiac support device and movable within the jacket between retracted and extended states to drive the jacket between collapsed and open configurations. At least portions of the deployment mechanism within the jacket have a lubricious surface to substantially reduce friction between the jacket and a heart onto which the jacket is being positioned. The actuating mechanism moves the deployment mechanism between the retracted and extended states.
摘要:
A method for efficiently implanting a cardiac support device on a patient's heart. The method includes causing lubricious material to be located between the cardiac support device and the heart while the cardiac support device is being implanted on the heart. The lubricious material is removed from between the cardiac support device and the heart after the cardiac support device is implanted.
摘要:
A delivery device for efficiently delivering a cardiac support device of the type having a jacket. The device includes a body, a deployment mechanism and an actuating mechanism. The deployment mechanism is for releasable connection to a cardiac support device and movable within the jacket between retracted and extended states to drive the jacket between collapsed and open configurations. At least portions of the deployment mechanism within the jacket have a lubricious surface to substantially reduce friction between the jacket and a heart onto which the jacket is being positioned. The actuating mechanism moves the deployment mechanism between the retracted and extended states.
摘要:
A device for delivery of a cardiac support device for treating cardiac disease of a heart includes a multistage deployment mechanism and an actuating mechanism for controlling the positions of the deployment mechanism. The deployment mechanism is operable to change between a retracted state and an extended state, and includes a plurality of independent stages, including, in one embodiment, a first stage including a guide structure for location adjacent a portion of the patient's heart when in the extended state. A second stage is movably coupled to the first stage, and is guided by the guide structure between the retracted and extended states. The second stage further releasably engages and supports the cardiac support device and positions the cardiac support device at the desired implantation location, guided by the guide structure of the stage. In some embodiments, the deployment mechanism may include additional stages. The actuating mechanism drives the deployment mechanism between the retracted and extended states, and independently controls the positions of the multiple stages of the deployment mechanism.
摘要:
A method for implanting a cardiac support device (CSD) on a patient's heart. An amount of contrast agent sufficient to cause structures on the heart to be visible upon fluoroscopic or other imaging is introduced into the pericardial space surrounding the heart. The heart and contrast agent are imaged to provide a visual indication of the location of the structures of the heart. The CSD is placed on the heart using the visual indications provided by the imaging.
摘要:
A method for implanting a cardiac support device (CSD) on a patient's heart. An amount of contrast agent sufficient to cause structures on the heart to be visible upon fluoroscopic or other imaging is introduced into the pericardial space surrounding the heart. The heart and contrast agent are imaged to provide a visual indication of the location of the structures of the heart. The CSD is placed on the heart using the visual indications provided by the imaging.