초록 ▼

Various universal ports for installation into a colon are disclosed. Various embodiments include expandable port bodies that may employ selectively deployable tissue-engaging barbs for securing the port in position within the colon. Some embodiments also employ tissue cutting members that may be dep

Various universal ports for installation into a colon are disclosed. Various embodiments include expandable port bodies that may employ selectively deployable tissue-engaging barbs for securing the port in position within the colon. Some embodiments also employ tissue cutting members that may be deployed to sever the colon. Some embodiments also employ a flexible sleeve that may extend from the port out through the anus to provide a passageway for passing surgical instruments and into and out of the rectum and also for removing severed specimens therefrom.

대표청구항 ▼

1. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a first rotary drive motion thereto, wherein said expandable portion is configured

1. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a first rotary drive motion thereto, wherein said expandable portion is configured to engage the colon in said expanded state, said expandable portion comprising: a first expandable hub assembly that is configured to move from a collapsed position to an expanded position upon the application of said first rotary drive motion thereto;a second expandable hub assembly operably coupled to said first expandable hub assembly for rotational motion relative thereto, said second expandable hub assembly configured to move from a second collapsed insertion state to a second expanded state upon application of a second rotary drive motion thereto, said second expandable hub assembly operably supporting a plurality of tissue-engaging members configured to move from un-deployed positions to deployed tissue-engaging positions when said second expandable hub assembly is moved from said second collapsed insertion state to said second expanded state; andan expandable outer ring operably supported on said first expandable hub assembly and wherein said universal port further comprises a drive portion configured to engage said expandable portion and apply said first rotary drive motion to said expandable portion. 2. The universal port of claim 1 wherein said expandable portion further comprises a third expandable hub assembly that is operably coupled to said second expandable hub assembly for rotational motion relative thereto, said third expandable hub assembly configured to move from a third collapsed insertion state to a third expanded state upon application of a third rotary drive motion thereto, said third expandable hub assembly operably supporting a plurality of tissue cutting members configured to move from un-deployed positions to deployed tissue cutting positions when said third expandable hub assembly is moved from said third collapsed insertion state to said third expanded state. 3. The universal port of claim 1 further comprising a flexible sleeve attached to said universal port to form an insertion and exit passage extending therefrom. 4. The universal port of claim 1 further comprising an occlusion cover operably attached to said universal port. 5. The universal port of claim 4 wherein said occlusion cover comprises a segmented diaphragm assembly. 6. The universal port of claim 1 further comprising a seal selectively engageable with said expandable portion. 7. The universal port of claim 1 wherein said drive portion is disengageable from said expandable portion. 8. The universal port of claim 1 wherein said drive portion is configured to be engaged to a distal end of an elongated shaft assembly of a modular surgical instrument configured to selectively supply said first rotary drive motion thereto. 9. A universal port for insertion into a colon, said universal port comprising: an annular port body defining a centrally-disposed port therethrough;a plurality of tissue-engaging barbs operably supported within said annular port body and configured for movement from a first insertion position within said annular port body to a second deployed position wherein a tissue-engaging portion thereof protrudes outward from said annular port body; anda deployment drive assembly operably supported within said annular port body and configured for operable engagement with a surgical instrument, said deployment drive assembly operably interfacing with each of said tissue-engaging barbs such that upon application of a drive motion from the surgical instrument in a first direction causes said tissue-engaging barbs to move from said first insertion position to said second deployed position and upon another application of said drive motion from the surgical instrument in a second direction causes said tissue-engaging barbs to move from said second deployed position to said first insertion position. 10. The universal port of claim 9 wherein said drive motion comprises an axial drive motion. 11. The universal port of claim 10 wherein said deployment drive assembly comprises: a rotary drive hub rotatably supported within said annular port body, said rotary drive hub having an inner bore wall that has a pair of helical drive slots therein, said rotary drive hub further having a drive gear formed thereon configured for meshing engagement with gear portions on each of said tissue-engaging barb; anda drive shaft extension configured for releasable engagement with a rotary drive shaft of the surgical instrument, said drive shaft extension having a pair of drive pins protruding therefrom adapted to be received in a corresponding one of said helical drive slots. 12. A universal port for installation within a colon, said universal port comprising: a first annular port body configured to be releasably inserted within the colon by an insertion member; anda second annular port body movably coupled to said first annular port body, said second annular port body configured for releasable operable engagement with a drive member for applying drive motions thereto, said second annular port body operably supporting a plurality of tissue-engaging barbs around a circumference of said second annular port body, each said tissue-engaging barb being selectively deployable from an insertion position wherein each said tissue-engaging barb is supported substantially within said second annular port body and a deployed position wherein tissue-engaging tip portions thereof protrude outward from said second annular port body. 13. The universal port of claim 12 wherein said second annular port body is rotatably attached to said first annular port body for relative rotation thereto upon application of a rotary drive motion thereto by said drive member. 14. The universal port of claim 13 wherein said insertion member comprises an insertion shaft portion of a surgical instrument, said insertion shaft portion configured for releasable engagement with said first annular port body and wherein said drive member comprises a rotary drive shaft assembly comprising a rotary drive shaft rotatably supported within said insertion shaft portion and having a distal end protruding therefrom and a proximal portion configured to operably interface with an actuation system of the surgical instrument such that upon application of an actuation motion thereto, said actuation system causes said rotary drive shaft to apply said rotary drive motion. 15. The universal port of claim 14 wherein said first annular port body has a first inner port wall having a plurality of first slot formations therein configured to releasably receive corresponding first support arms protruding from said insertion shaft portion and wherein said second annular port body has a second inner port wall that has a plurality of second slot formations therein configured to releasably receive corresponding second support arms protruding from said rotary drive shaft assembly. 16. The universal port of claim 15 wherein said distal end of said rotary drive shaft has a blunt distal end that protrudes distally beyond said second annular port body when said second support arms are seated within said second slot formations in said second annular port body. 17. The universal port of claim 12 further comprising a flexible sleeve attached to said universal port to form an insertion and exit passage extending therefrom. 18. A colon expansion port for installation within a colon, said colon expansion portion comprising: a port body having a proximal port end, a distal port end and a central portion extending therebetween, said port body being selectively configurable from a collapsed insertion position and an expanded installation position;an insertion instrument releasably attachable to said proximal port end of said port body;an actuation member interfacing with said distal port end of said port body to apply an actuation motion thereto to draw said distal portion of said port body towards said proximal portion of said port body to move said port body from said collapsed insertion position to said expanded installation position; anda plurality of tissue-engaging barbs operably supported within said port body and being movable from an undeployed position to a deployed position when said actuation motion is applied to said distal port end portion of said port body. 19. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a rotary drive motion thereto, wherein said expandable portion is configured to engage the colon in said expanded state;a drive portion configured to engage said expandable portion and apply said rotary drive motion to said expandable portion; anda flexible sleeve attached to said universal port to form an insertion and exit passage extending therefrom. 20. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a rotary drive motion thereto, wherein said expandable portion is configured to engage the colon in said expanded state;a drive portion configured to engage said expandable portion and apply said rotary drive motion to said expandable portion; andan occlusion cover operably attached to said universal port. 21. The universal port of claim 20 wherein said occlusion cover comprises a segmented diaphragm assembly. 22. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a rotary drive motion thereto, wherein said expandable portion is configured to engage the colon in said expanded state;a drive portion configured to engage said expandable portion and apply said rotary drive motion to said expandable portion; anda seal selectively engageable with said expandable portion. 23. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a rotary drive motion thereto, wherein said expandable portion is configured to engage the colon in said expanded state; anda drive portion configured to engage said expandable portion and apply said rotary drive motion to said expandable portion and being further configured to be disengaged from said expandable portion. 24. A universal port for insertion into a colon, said universal port comprising: an expandable portion configured to be selectively expanded from a collapsed insertion state to an expanded state upon the application of a rotary drive motion thereto, wherein said expandable portion is configured to engage the colon in said expanded state; anda drive portion configured to be engage to a distal end of an elongated shaft assembly of a modular surgical instrument configured to selectively supply said rotary drive motion thereto, said drive portion further configured to apply said rotary drive motion to said expandable portion.