Surgical tissue bag and method for percutaneously debulking tissue

A minimally invasive surgical tissue bag for percutaneously debulking tissue, comprising:

• an inner bag comprising a first sheet of puncture-resistant material having opposite first and second ends folded back on each other and forming a folded side of said inner bag, said first and second folded-back ends being attached together and forming a second side of said inner bag, said first sheet also having opposite first and second sides each folded back on itself, facing portions of said first folded-back side being attached together between said folded and second sides of said inner bag and forming a closed end of said inner bag, said second folded-back side forming an open end of said bag;
• an outer bag having said inner bag positioned therein and comprising a second sheet of moisture-proof material dissimilar from said puncture-resistant material and having first and second ends folded back on each other and forming a folded side of said outer bag, said first and second folded-back ends of said second sheet being attached together and forming a second side of said outer bag, said second sheet also having opposite first and second sides each folded back on itself, facing portions of said first folded-back ends of said second sheet being attached together between said folded and second sides of said outer bag, said second folded-back side of said second sheet forming an open end of said outer bag;
• said first and second sheets being flexible and foldable for percutaneous insertion through an access sheath during a minimally invasive surgical procedure;
• and
• a drawstring attached about said open ends of said inner and outer bags and having a length extendable through said sheath during said surgical procedure for drawing said open end closed.

The method of percutaneously debulking tissue, comprising:

• inserting percutaneously a tissue bag through an access sheath into a body cavity, said tissue bag comprising:
• a sheet having first and second layers of dissimilar material, said first layer comprising a puncture-resistant material, said second layer comprising a moisture-proof material, said first and second layers being flexible and foldable for percutaneous insertion through an access sheath during a minimally invasive surgical procedure, said sheet having opposite first and seconds ends folded back on each other and forming a folded side of said bag, said first and second folded-back ends being affixed together and forming a second side of said bag, said sheet also having opposite first and second sides, each side being folded back on itself, facing portions of said first folded-back side being attached together between said folded and second sides of said bag and forming a closed end of said bag, said second folded-back side forming an open end of said bag;
• and a drawstring attached about said open end of said bag and having a length extendable through said sheath during said surgical procedure for drawing said open end closed;
• positioning said tissue in said bag through an open end thereof;
• pulling said open end of said tissue bag out of said body cavity;
• and
• morcellating through said open end said tissue in said bag in said body cavity.

A minimally invasive surgical tissue bag for percutaneously debulking tissue, comprising:

• a first layer of puncture-resistant material having flexible and foldable properties for insertion through an access sheath during a minimally invasive surgical procedure into a body cavity and formed into a predetermined shape having an opening therein for containment therein of tissue within said body cavity;
• a second layer of moisture-proof material dissimilar from said puncture-resistant material having flexible and foldable properties for insertion through said access sheath and formed into said predetermined shape having said opening therein;
• and
• closure means attached about said open ends of said layers for closing said openings through said access sheath and having a portion extendable through said access sheath for pulling said closed openings from said body cavity during said minimally invasive surgical procedure.