05219111 is referenced by 354 patents and cites 6 patents.

A pneumatic stapler which contains a mechanism for manual or automatic retaining pin placement. The automatic retaining pin is connected to a set of linkage plates actuable by a series of inflation of bladders in order to create instrument closure on tissue compression and simultaneously create pin placement. An optional manual, curved retaining pin is used in place of the automatic pin system. Further, because this instrument has a ramped anvil mechanism, adjustable staple height is derived. Controlled closure of the mechanism is provided with a detent spring and constant force springs. Upon stapling, the staple encounters an anvil with reduced size, which is kept closed by a latched retaining pin system to allow for reduced width of the anvil so that the stapling head becomes more versatile. Finally, after firing the staples, the mechanism is capable of rapid depressurization and simultaneous instrument opening by a spring return mechanism. A shaft connects the head to the handle allowing rotation and articulation in an universal joint or in two discrete locations, both with a locking system enabling the operator to choose angles at which to insert the instrument.

Title
Pneumatically actuated linear stapling device
Application Number
667776
Publication Number
5219111
Application Date
June 15, 1992
Publication Date
June 15, 1993
Inventor
Ronald R Van Overloop
West Chester
OH, US
Narinderjit S Sambi
Maineville
OH, US
Mark Ortiz
Milford
OH, US
Federico Bilotti
Madeira
OH, US
Agent
Paul A Coletti
Assignee
Ethicon
NJ, US
IPC
A61B 17/072
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