Surgical stapling apparatus having self-contained pneumatic syst

Surgery – Truss – Pad

Patent

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Details

128325, 128334R, 227 19, 227DIG1, A61B 1712, A61B 1732

Patent

active

043490280

ABSTRACT:
Surgical stapling apparatus has a sequence of motion which is initiated manually and which is thereafter continued automatically by a pneumatic system contained within the apparatus. The pneumatic system uses relatively low pressure gas, and the apparatus has a mechanical linkage between the pneumatic system and the parts driven by the pneumatic system for matching the force available from the pneumatic system to the force required to drive the apparatus during the various portions of the motion sequence. An illustrative embodiment of the invention is ligating and dividing apparatus in which the motion sequence includes clamping tissue in the apparatus, advancing staple-like metal ligatures toward the clamped tissue, crimping the ligatures around the tissue to ligate the tissue, and cutting through the ligated tissue between the ligatures.

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