Laparoscopic Grasping InstrumentIntroductionIntroduction (cont.)BackgroundDesign ObjectiveDesign #1Design #2Design #3Slide 9Elected DesignFuture WorkTeam PhotoCreditsLaparoscopic Grasping Laparoscopic Grasping InstrumentInstrumentbyLynn Murray, Becky Jones, Ann Sagstetter and Richard BambergIntroductionIntroduction• Laparoscope = thin telescope with light source• Minimally invasive surgical technique• Operations in abdomen or pelvic cavity• Laparoscope inserted 5-10mm canula• Side port 5-10mm for grasper• Abdomen insufflated: CO2 or N gasDetails of Laparoscopy:Introduction (cont.)Introduction (cont.)Why Laparoscopy?•Minimize blood loss•Minimize post-operative pain•Expedite recovery time•Less risk of complications•A much smaller scarBackgroundBackgroundProblem at hand:• Clips restrain tissue from surgical procedure• High pressure, tissue closest to joint• Phenomenon: Tissue expelled, trauma causedDesign ObjectiveDesign Objective• Grasping instrument designed for internal use• Minimize moving parts and safety hazards• Equalize pressure across length of clip• Device must be <5mm diameterSpecifications:Design #1Design #1Design #2Design #2Design #3Design #3Cost Cost Effectiveness Effectiveness (1-3)(1-3)Even Even Pressure Pressure Distribution Distribution (1-10)(1-10)Ease of Ease of Use by Use by Surgeon Surgeon (1-10)(1-10)Feasibility / Feasibility / Practicality of Design Practicality of Design (1-10)(1-10)Meets Design Meets Design Specs. (1-10)Specs. (1-10)Safety Safety (1-10)(1-10)TotalTotalDesign #1Design #13333887788553434Design #2Design #21199664466443030Design #3Design #32277886699884040Current DesignCurrent Design3311889977663434Design MatrixElected DesignElected Design•Pressure evenly and effectively distributed•Relatively easier to operate•Functional with current design parameters•Design requirements met•Addresses main safety concernsFuture WorkFuture WorkMaterial researchMaterial researchMechanical design to connect current Mechanical design to connect current handlehandlePrototyping possibilitiesPrototyping possibilitiesTeam PhotoTeam PhotoCreditsCreditshttp://en.wikipedia.org/wiki/Laparoscopic_surgeryhttp://en.wikipedia.org/wiki/Laparoscopic_surgerySurgical Device Poses a Rare but Serious Peril Surgical Device Poses a Rare but Serious Peril from thefrom the New York Times New York Times (Registration required) (Registration required) (2005). "(2005). "Laparoscopy in UrologyLaparoscopy in Urology"". . Journal of Minimal Access SurgeryJournal of Minimal Access Surgery 11 (4). (4). Intuitive Surgical Intuitive Surgical - Developer of robotic surgery machines. - Developer of robotic surgery
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