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Surgical stapling instrument having an electroactive polymer actuated medical substance dispenser
专利权人:
Inc.;Ethicon Endo-Surgery
发明人:
Morgan, Jerome R.,Shelton IV, Frederick E.,Hueil, Joseph C.
申请号:
AU2005203213
公开号:
AU2005203213B2
申请日:
2005.07.22
申请国别(地区):
AU
年份:
2012
代理人:
摘要:
#$%^&*AU2005203213B220120308.pdf#####Abstract of the Invention A surgical stapling and severing instrument enables minimally invasive surgical procedures by having upper and lower jaws (i.e., anvil and staple channel) that are positioned with an elongate shaft and handle through a surgical opening, and in particular through a cannula of a trocar. A pair of fluid bladders (lift bags) are positioned in the staple channel beneath a proximally projecting lever tray so that transfer of fluid from the handle causes closing and clamping of the anvil. The bi-directional fluid control may be mechanically produced at the handle or by activating an electroactive polymer actuator. Once firing is sensed, an EAP plunger in a medical substance syringe inserted into the elongate shaft is activated to dispense a medical substance (e.g., anesthetics, adhesives, cauterizing substances, antibiotics, etc.) and is guided along a firing bar to a cutting surface of an E-beam placing the substance on tissue as severed.2/9 / 130 132 16 131 106 40 102 3-32, / 90 /'158 12 34" 110 41 92 112 50 100 78 70 120 6 66 68 722 60 48. 54 46 14 58 24 38 122 64 36 20 42 '30 44 FIG. 2
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