| 摘要 |
A cardiac apical suction device (CASD) (10) for supporting an apical region of a beating heart during off-pump, beating heart surgery. The apparatus (10) consists of an outer frame (12) configured to fit over the apical region of the heart having a flexible inner item (14). The inner member (14) has an inner surface defining a cavity (48) of select volume sized to receive the apical region of a heart. The inner member (14) further has a peripheral lip (22) sized to make sealing engagement along a contour of the surface of the heart. The inner member (14) and outer frame (12) are connected by an actuation member (28) operative to selectively increase the volume of the inner cavity (48). The CASD (10) may be placed over the apical region of a heart such that the peripheral lip (22) forms a sealing engagement with the surface of the heart. Upon operation of the actuation item (28), the increase in the volume of the inner cavity causes a decrease in the pressure within the inner item (14), resulting in suction adhesion between the CASD (10) and the surface of the heart.
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