Surgical device for enclosing an internal organ

Abstract

A medical device for enclosing an internal bodily organ or tissue during surgery comprising a filamentary strand with noose and free end portions, the free end portion enclosed within a cannula; a surgical bag with an opening, the bag attached to the noose portion at the open end of the bag; and a means for pulling the free end portion proximally to reduce the diameter of the noose portion so as to close the open end of the surgical bag.

We claim: 
     
       1. A medical device for enclosing an internal bodily organ or tissue during surgery comprising: a) a continuous, filamentary strand having a distal noose portion secured with a knot, and a proximal free end portion, said free end portion enclosed within a generally rigid, longitudinal tubular sleeve so as to facilitate handling of said device, said knot configured in a manner so as to allow movement of the free end portion proximally and to prevent the noose portion from loosening when engaged about said bodily organ or tissue;   b) a surgical bag having an open end therein, said bag fixedly attached along substantially the entire perimeter of said open end thereof to said noose portion of said filamentary strand along substantially the entire circumferential length of said noose portion thereof; and   c) means for pulling said free end portion of said filamentary strand proximally so as to continually reduce the diameter of said noose portion thereby continually closing said open end of said surgical bag;   wherein said tubular sleeve is tapered at its distal end, and said knot abuts said tapered distal end when said free end portion of said filamentary strand is pulled proximally, and said tapered distal end has a cross-section diameter effective to prevent said knot from passing through said tubular sleeve when said free end portion of said filamentary strand is pulled proximally.   
     
     
       2. The medical device of claim 1 wherein said tubular sleeve has a frangible portion at its proximal end. 
     
     
       3. The medical device of claim 2 wherein a score line is disposed at the distal end of said frangible portion. 
     
     
       4. The medical device of claim 3 wherein said free end portion of said filamentary strand is securingly attached within said frangible portion of said tubular sleeve, whereby a user of said medical device can break said tubular sleeve about said frangible portion at said score line and pull proximally said frangible portion so as to pull said free end portion of said filamentary strand proximally. 
     
     
       5. The medical device of claim 4 wherein said free end portion is adhesively attached within said frangible portion with epoxy adhesive. 
     
     
       6. The medical device of claim 5 wherein said bag is composed of block copolyetheramide. 
     
     
       7. The medical device of claim 6 wherein said open end of said bag is securingly engaged to said noose portion of said filamentary strand within a channel disposed along substantially the entire circumferential length of said noose portion, said channel formed by folding said bag about itself at said open end so as to create a top flap portion. 
     
     
       8. The medical device of claim 7 wherein said bag further comprises a closed bottom portion sealed by a peripheral edge seal. .Iadd. 
     
     
       9.  A medical device for enclosing an internal bodily organ or tissue during surgery comprising: a) a continuous, filamentary strand having a distal noose portion secured with a knot, and a proximal free end portion, said free end portion enclosed within a generally rigid, longitudinal tubular sleeve so as to facilitate handling of said device, said knot configured in a manner so as to allow movement of the free end portion proximally and to prevent the noose portion from loosening when engaged about said bodily organ or tissue;   b) a surgical bag having an open end therein, said bag fixedly attached along substantially the entire perimeter of said open end thereof to said noose portion of said filamentary strand along substantially the entire circumferential length of said noose portion thereof; and   c) means for pulling said free end portion of said filamentary strand proximally so as to continually reduce the diameter of said noose portion thereby continually closing said open end of said surgical bag;   wherein said tubular sleeve has a constricted cross-section diameter at its distal end, and said knot abuts said constricted distal end when said free end portion of said filamentary strand is pulled proximally, and said constricted distal end has a cross-section diameter effective to prevent said knot from passing through said tubular sleeve when said free end portion of said filamentary strand is pulled proximally. .Iaddend. .Iadd.   
     
     
       10.  The medical device of claim 9 wherein said tubular sleeve has a frangible portion at its proximal end. .Iaddend. .Iadd.11. The medical device of claim 10 wherein a score line is disposed at the distal end of said frangible portion. .Iaddend. .Iadd.12. The medical device of claim 11 wherein said free end portion of said filamentary strand is securingly attached within said frangible portion of said tubular sleeve, whereby a user of said medical device can break said tubular sleeve about said frangible portion at said score line and pull proximally said frangible portion so as to pull said free end portion of said filamentary strand proximally. .Iaddend. .Iadd.13. The medical device of claim 12 wherein said free end portion is adhesively attached within said frangible portion with epoxy adhesive. .Iaddend. .Iadd.14. The medical device of claim 13 wherein said bag is composed of block copolyetheramide. .Iaddend. .Iadd.15. The medical device of claim 14 wherein said open end of said bag is securingly engaged to said noose portion of said filamentary strand within a channel disposed along substantially the entire circumferential length of said noose portion, said channel formed by folding said bag about itself at said open end so as to create a top flap portion. .Iaddend. .Iadd.16. The medical device of claim 15 wherein said bag further comprises a closed bottom portion sealed by a peripheral edge seal. .Iaddend. .Iadd.17. The medical device of claim 9 wherein said 
     
     
        tubular sleeve is tapered at its distal end. .Iaddend. .Iadd.18.  A medical device for enclosing an internal bodily organ or tissue during surgery comprising: a) a continuous, filamentary strand having a distal noose portion secured with a knot, and a proximal free end portion, said free end portion enclosed within a generally rigid, longitudinal tubular sleeve so as to facilitate handling of said device, said knot configured in a manner so as to allow movement of the free end portion proximally and to prevent the noose portion from loosening when engaged about said bodily organ or tissue;   b) a surgical bag having an open end therein, said bag fixedly attached along substantially the entire perimeter of said open end thereof to said noose portion of said filamentary strand along substantially the entire circumferential length of said noose portion thereof;   c) a grasping member for pulling said free end portion of said filamentary strand proximally so as to continually reduce the diameter of said noose portion thereby continually closing said open end of said surgical bag; and   d) means releasably attaching the grasping member to said tubular sleeve,   wherein said tubular sleeve has a constricted cross-section diameter at its distal end, and   said knot abuts said constricted distal end when said free end portion of said filamentary strand is pulled proximally, and   said constricted distal end has a cross-section diameter effective to prevent said knot from passing through said tubular sleeve when said free end portion of said filamentary strand is pulled proximally. .Iaddend. .Iadd.19. The medical device of claim 18 wherein said tubular sleeve is   
     
     
        tapered at its distal end. .Iaddend. .Iadd.20.  An endoscopic surgical procedure for enclosing body tissue comprising the steps of: forming an opening establishing a passageway into a body cavity;   inserting an open mouth surgical bag into said body cavity by providing the bag at the distal end of a tubular sleeve, and moving said tubular sleeve along said passageway until said distal end of said sleeve and said bag extend outwardly of said passageway;   providing a filamentary strand within said tubular sleeve and extending outwardly from the distal end of said tubular sleeve through an opening in a stop surface at the distal end of said tubular sleeve, said filamentary strand having (a) a knot at the distal end thereof, (b) a noose portion engaging the open mouth of said surgical bag and extending from said knot, and (c) a proximal end portion accessible at the proximal end of said tubular sleeve;   manipulating the proximal end of said tubular sleeve to (a) locate said open mouth of said surgical bag in alignment with said body tissue, and (b) enclose said body tissue within said surgical bag;   and closing the open mouth of said surgical bag by moving said filamentary strand proximally of said tubular sleeve to (a) move said knot into engagement with said stop surface, and (b) tighten said noose, thereby   
     
     
        enclosing said body tissue in said surgical bag. .Iaddend. .Iadd.21.  An endoscopic surgical procedure for enclosing body tissue comprising the steps of: forming an opening establishing a passageway into a body cavity;   inserting an open mouth surgical bag into said body cavity by providing the bag at the distal end of a tubular sleeve, and moving said tubular sleeve along said passageway until said distal end of said sleeve and said bag extend outwardly of said passageway;   providing a filamentary strand with a noose portion secured by slip knot means, the noose portion engaging the open mouth of said surgical bag, said filamentary strand extending within said tubular sleeve and being accessible at the proximal end thereof;   manipulating the proximal end of said tubular sleeve to (a) locate said open mouth of said surgical bag in alignment with said body tissue, and (b) enclose said body tissue within said surgical bag;   and closing the open mouth of said surgical bag by moving said filamentary strand proximally of said tubular sleeve so that said tubular sleeve restrains said slip knot means to tighten said noose and thereby enclose said body tissue in said surgical bag. .Iaddend. .Iadd.22. An endoscopic surgical procedure for enclosing body tissue comprising the steps of:   forming an opening establishing a passageway into a body cavity;   inserting an open mouth surgical bag into said body cavity by providing the bag at the distal end of a tubular sleeve, and moving said tubular sleeve along said passageway until said distal end of said sleeve and said bag extend outwardly of said passageway;   providing a bag closing means including a noose portion secured by slip knot means, the noose portion engaging the open mouth of said surgical bag, and an actuator for said bag closing means within said tubular sleeve and accessible at the proximal end thereof;   manipulating the proximal end of said tubular sleeve to (a) locate said open mouth of said surgical bag in alignment with said body tissue; and (b) enclose said body tissue within said surgical bag;   and closing the open mouth of said surgical bag by said actuator so that said tubular sleeve restrains said slip knot means to thereby enclose said body tissue. .Iaddend.