摘要:
A system for drawing blood from a heart of a patient, includes a blood pump, an outflow cannula and a flexible cannula assembly. The cannula assembly further includes a flexible cannula body including a proximal end, a distal end, an inner wall defining a lumen, and an outer wall. A tip is coupled with the distal end of the cannula body, and an anchor is coupled to the tip. The anchor is configured to engage an internal structure of the heart and resists movement of the cannula assembly in at least one direction along the flexible cannula body. A ring member is configured to be coupled to the heart wall and is positioned at least partially around the outer wall of the cannula body proximally relative to the tip. The ring member is further configured to provide hemostasis between the heart wall and the cannula body.
摘要:
A system for facilitating fluid connection between cannulae and a blood pump. The system includes a cannula having proximal and distal ends. The distal end of the cannula adapted to be in fluid communication with the circulatory system. The proximal end of the cannula configured to couple to an inlet of the blood pump. The system further includes a tunneling device configured to be inserted into a body of a patient to direct the proximal end of the cannula adjacent to the inlet for connection thereto. The cannula further includes a first connecting structure. The tunneling device further includes a second connecting structure. The first and second connecting structures are selectively engageable to allow connection and disconnection between the cannula and tunneling device.
摘要:
A malleable cannula for fluidically coupling with an anatomical structure includes a flexible cannula body wall having a proximal end, a distal end, and a lumen extending longitudinally between the proximal end and the distal end. The proximal end defines a first opening to the lumen and the distal end defining a second opening to the lumen. A channel is defined by a portion of the cannula body wall and extends longitudinally from the distal end toward the proximal end. The channel has a first end oriented toward the proximal end of the cannula body wall. A malleable member is provided within the channel and is fixedly connected to the cannula body wall at the first end of the channel. The malleable member is configured to assume and maintain a formed shape of the cannula body wall.
摘要:
A malleable cannula for fluidically coupling with an anatomical structure includes a flexible cannula body wall having a proximal end, a distal end, and a lumen extending longitudinally between the proximal end and the distal end. The proximal end defines a first opening to the lumen and the distal end defining a second opening to the lumen. A channel is defined by a portion of the cannula body wall and extends longitudinally from the distal end toward the proximal end. The channel has a first end oriented toward the proximal end of the cannula body wall. A malleable member is provided within the channel and is fixedly connected to the cannula body wall at the first end of the channel. The malleable member is configured to assume and maintain a formed shape of the cannula body wall.