US 5,141,144 A · Stapler and firing device

Abstract

An improved stapler firing assembly and a surgical stapler are disclosed. The stapler comprises structural members having handle parts with opposite sides and jaw parts projecting from the handle parts. The stapler includes a mechanism for releasable engagement between an elongate locking member and the the structural members comprising a lever lock including a hook portion adapted to pass through a slot in a handle part. The lever lock is mounted on the locking member and includes first and second release buttons and actuating means mounting the first and second release buttons on opposite sides of the locking member for movement between first and second positions with respect to the locking member. The stapler firing assembly comprises a pusher adapted to move longitudinally along one of the jaw parts to sequentially press the staples against an anvil. There is also present a firing handle body having opposite end portions and a mechanism mounting the handle body on the pusher for movement relative to the pusher between a first position and a second position so that the firing handle body can be positioned to be manually engaged on either side of the handle parts to move the second end of the pusher along the second jaw to eject and close the staples.

Claims6

Dependent claims

A stapler firing assembly adapted for use in a surgical stapler comprising first and second handle parts having first and second sides, and first and second jaw parts, an anvil positioned along the second jaw part, and a plurality of staples positioned along the first jaw part in opposition to the anvil, said firing assembly comprising:

a pusher having a longitudinal axis and first and second longitudinally spaced end portions, said pusher being adapted to move longitudinally along the first jaw part with said second end portion sequentially pressing the staples against the anvil to engage and close the staples in tissues between the jaw parts with said first end portion moving between said handle parts,
a firing handle body having opposite end portions;
means mounting said handle body on the first end portion of said pusher for movement relative to said pusher between a first position at which one of said end portions of said handle body projects from the first side of said handle parts, and a second position at which the other of said end portions of said handle body projects from the second side of said handle parts so that the firing handle body can be positioned to be manually engaged on either side of the handle parts to move the second end of the pusher along the first jaw to eject and close the staples.

Dependencies are inferred from the claim text.

Stapler and firing device

Life of this patent

Stapler and firing device

Life of this patent

Abstract

Claims6