Surgical staple cartridge with self-dispensing staple buttress

US9101359B2 · kind B2 · utility

Assignee

• Ethicon Endo-Surgery, Inc. · US

Inventors

• Bret W. Smith · South Lebanon, US
• Thomas W. Lytle, IV · Monroe, US
• Matthew C. Miller · Cincinnati, US
• Yi-Lan Wang · Somerville, US
• Joseph Zavatsky · Flemington, US
• Kreena R. Modi · Akron, US
• Aron O. Zingman · Cambridge, US

Key dates

• Filing date: Sep 13, 2011
• Grant date: Aug 11, 2015
• Expiry date: Feb 4, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/07271
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge when in an open position. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The instrument includes a movable buttress that is integral with the housing of the cartridge or integral with the lower jaw of the end effector. The buttress may attach to the anvil and include a portion to receive tissue. The receipt of tissue urges and moves the buttress proximally inwards to further encompass the tissue.