TISSUE STAPLER ANVIL FEATURE TO PREVENT PREMATURE JAW OPENING

TISSUE STAPLER ANVIL FEATURE TO PREVENT PREMATURE JAW OPENING

A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DUNKI-JACOBS, Adam R, BAXTER, Chester O., III, CHEKAN, Edward G, BAKER, Kent P, SERBER, Julia, F, MILLER, Christopher C, VASUDEVAN, Venkataramanan Mandakolathur, ALEXANDER, Johnny H., III, MORGAN, Jerome R, KIMBALL, Cory G, HUNT, John V, SCHOWALTER, Joseph P, JAMISON, Barry T, HENDERSON, Cortney E, FELDER, Kevin D, SHURTLEFF, Carl, J, WEIZMAN, Patrick A, YOUNG, Joseph E, SWINDON, Patrick J, CUMMINGS, John F
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Beschreibung
Zusammenfassung:A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the anvil detection feature comprises a translatable rod that inhibits a lockout feature from disengaging. In other versions, an anvil sensing tube is disposed about the pointed rod and interferes with actuation of the trigger in a first position. A recess in the tube permits trigger to actuate when the anvil sensing tube is in the second position. Alternatively, a resilient tab is coupled to the pointed rod and resists actuation of the staple driver. A trigger lockout assembly may include a spring-loaded button that "pops" out when a push rod is actuated, thereby freeing a pivotable lockout feature.