| 摘要 |
PROBLEM TO BE SOLVED: To provide an anastomotic ring applier device that is capable of deploying an anastomotic ring without requiring a large actuating force to be transmitted from the proximal portion of the device to the distal portion thereof. SOLUTION: The device is a surgical instrument for applying an anastomotic ring device, and comprises a handle 18 connected to an anastomotic ring deployment mechanism 2 by an elongate shaft 22. The instrument also comprises an actuation mechanism structured to apply an actuating force to the ring deployment mechanism. In one embodiment, the actuation mechanism applies the compressive force to deploy the anastomotic ring by drawing opposing ends of a ring deployment mechanism together. The actuation mechanism comprises a spring or other resilient member, movable from a first position to a second position in order to actuate the ring deployment mechanism. One mechanism can move the spring to the second position in response to the input by a user while retaining the spring at the first position, and one mechanism can dislodge the spring. COPYRIGHT: (C)2007,JPO&INPIT
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