Surgical compression clips

Abstract
A surgical clip assembly which includes a pair of generally linear compression elements for securing tissue between them and for applying to the secured tissue a compression force. The clip assembly has an initial, open position in which the linear compression elements may be positioned about tissue to be secured between them. The assembly also has a final, closed position where the compression elements are substantially parallel to each other, applying a compressive force to the secured tissue. The clip assembly also includes a force means disposed between the pair of compression elements and operative to transmit operational forces between them.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be more fully understood and its features and advantages will become apparent to those skilled in the art by reference to the ensuing description, taken in conjunction with the accompanying drawings, in which:



FIG. 1A is an overall isometric view of an endoscopic system constructed according to the present invention;



FIG. 1B is an enlarged view of the distal end of the endoscopic system shown in FIG. 1A;



FIG. 1C is an enlarged view of the proximal end of the endoscopic system shown in FIG. 1A;



FIG. 2 shows an isometric view of the compression clip constructed according to a first embodiment in its closed position;



FIGS. 3A and 3B show isometric top and bottom views of the compression clip shown in FIG. 2 in its open position;



FIGS. 4A, 4B and 4C show isometric views of different configurations of spring elements constructed according to various embodiments of the present invention;



FIG. 5 is an isometric view of a clip applier constructed according to one embodiment of the present invention, the applier in its closed position;



FIG. 6 is an isometric view of the clip applier in FIG. 5, the applier in its open position;



FIG. 7 is an isometric view of the clip applier in FIG. 5 without its base element, the applier in its open position;



FIG. 8 is an isometric view of the clip applier of FIG. 5 used to position the clip in FIG. 2, the clip being attached to the applier and in its closed position;



FIG. 9 is an isometric view of a clip applier used to position the clip in FIG. 2, the clip being attached to the applier and in its open position;



FIG. 10 is an isometric view of a clip applier constructed according to a second embodiment of the present invention, the applier in its closed position;



FIG. 11 is an isometric view of the clip applier in FIG. 10, the applier in its open position;



FIG. 12 is an isometric view of the clip applier of FIG. 10, attached to a clip constructed as in FIG. 2, the clip being attached to the applier and in its closed position;



FIG. 13 is an isometric view of the clip applier of FIG. 10, attached to a clip constructed as in FIG. 2, the clip being attached to the applier and in its open position;



FIGS. 14 and 15 show isometric views of a second embodiment of a surgical compression clip constructed according to the present invention, wherein FIG. 14 and FIG. 15 show the clip in its closed and open positions, respectively;



FIG. 16 shows an exploded view of the clip in FIGS. 14 and 15;



FIGS. 17 and 18 show isometric partially cut-away views of the compression clip shown in FIGS. 14 and 15, respectively;



FIGS. 19 and 20 show isometric views of a clip applier used with the clip shown in FIGS. 14-18, FIG. 19 showing the applier engaged to the clip and FIG. 20 disengaged from the clip;



FIG. 21 shows an isometric view of the applier in FIGS. 19 and 20;



FIG. 22 shows a partially exploded view of the applier in FIGS. 19 and 20;



FIG. 23 shows a cross-sectional view of the applier shown in FIGS. 19 and 20;



FIG. 24A shows an exploded view of a third embodiment of a compression clip constructed according to the present invention;



FIG. 24B shows an isometric partially cut-away view of the clip shown in FIG. 24A;



FIGS. 25A and 25B are an isometric top and bottom view of a clip constructed according to a fourth embodiment of the present invention, the clip being in its closed position;



FIGS. 26A and 26B are an isometric top and bottom view of a clip constructed according to the embodiment of FIGS. 25A and 25B, the clip being in its open position;



FIGS. 27A and 27B are isometric views of a clip applier constructed according to another embodiment of the present invention, the applier shown in its closed and open position, respectively;



FIGS. 27C and 27D are cross-sectional views of the clip applier shown in FIGS. 27A and 27B, the applier shown in its closed and open position, respectively;



FIGS. 28A and 28B are isometric views of the clip applier shown in FIGS. 27A and 27B constructed in its closed and open position, respectively, when attached to and operating the clip shown in FIGS. 25A-26B;



FIG. 29 is an exploded view of another embodiment of a clip applier for use with the clips in the specification herein;



FIGS. 30A and 30B are isometric views of the clip applier shown in FIG. 29 in its closed and open position, respectively;



FIG. 30C is a revealed inner view of FIG. 30B;



FIG. 31A is a cross-sectional view of a surgical compression clip constructed according to a fifth clip embodiment of the present invention, the clip being in its open position and attached to its associated applier;



FIG. 31B is an enlarged view of a portion of the distal end of the clip shown in FIG. 31A;



FIGS. 32 and 33 are different partially exploded views of the surgical compression clip and applier in FIG. 31A;



FIG. 34 shows different views of the shape memory spring element of the clip in FIG. 31A;



FIG. 35 shows different views of the latch arm of the clip presented in FIG. 31A;



FIG. 36 shows an isometric view of the clip's spring element at the hinge region of the clip shown in FIG. 31A;



FIG. 37 shows an isometric front side view of the clip in FIG. 31A, the clip in its open position;



FIGS. 38 and 39 show different views of the clip in FIG. 31A where the wire of the clip has been drawn taut;



FIG. 40 shows an enlarged view of the clip shown in FIG. 31A including the clip's distal end and its locking process;



FIG. 41 shows an enlarged cross-sectional view of the distal end of the clip shown in FIG. 31A, the clip in its latched position;



FIGS. 42 and 43 show additional enlarged views of the distal end of the clip shown in FIG. 31A, the clip being in its closed position;



FIG. 44 shows an isometric view of the clip shown in FIG. 31A, the clip in its closed position and ready for insertion into a clip applier;



FIG. 45 shows an endoscope prior to insertion into a multi-lumen sleeve;



FIG. 46 shows the endoscope of FIG. 45 being inserted into a multi-lumen sleeve;



FIG. 47A shows the endoscope after insertion into the multi-lumen sleeve;



FIG. 47B shows an enlarged view of the distal end of the endoscope in FIG. 47A;



FIG. 48 shows the sleeve-encased endoscope as it approaches a polyp in the gastrointestinal tract;



FIG. 49 shows a view of a surgical clip attached to an applier being advanced to the site of the polyp through a secondary lumen of the sleeve;



FIG. 50 shows a top side view of the surgical clip attached to an applier being positioned proximate to the polyp;



FIG. 51 shows a top side view of a surgical clip and applier positioned proximate to a polyp and a grasper assembly being positioned proximate to the polyp after advancing through a working channel of the endoscope;



FIG. 52 shows a top side view of the opened clip proximate to the polyp;



FIG. 53 shows a top view of the grasper of the grasper assembly beginning to pull the polyp through the opened clip shown in FIG. 52;



FIG. 54 shows a top side view of the grasper of the grasper assembly grasping the polyp;



FIG. 55 shows a top side view of the grasper continuing to pull the polyp through the opened surgical clip;



FIG. 56 shows a top side view of the grasper and grasper transporting element rotating and wrapping the pulled polyp around the grasper transporting element;



FIG. 57 shows a cross-sectional view along line AA′ of FIG. 56 of the grasper and grasper transporting element rotating and wrapping the pulled polyp around the grasper transporting element;



FIG. 58 shows a top side view of the surgical clip closing around the wrapped polyp;



FIG. 59 shows a top side view of the closed surgical clip and polyp without the applier that has been withdrawn through a secondary lumen from the region of the resected polyp;



FIG. 60 shows a top side view of the closed surgical clip and polyp with a severing device approaching the rotated polyp for severing;



FIG. 61 shows a top side view of the tissue held by the clip at the resection site; and



FIGS. 62A and 62B show two side views of the tissue held by the clip at the resection site.


Claims
  • 1. A surgical clip assembly which comprises: a pair of generally linear compression elements for securing tissue therebetween and for applying to the secured tissue a compression force, wherein said clip assembly has an initial, open position in which said linear compression elements may be positioned about tissue to be secured therebetween, and a final, closed position whereat said compression elements are substantially parallel to each other, thereby to apply a compressive force to the secured tissue; andforce means disposed between said pair of compression elements and operative to transmit operational forces therebetween.
  • 2. A surgical clip assembly according to claim 1, wherein said force means is formed of a shape memory material.
  • 3. A surgical clip assembly according to claim 2, wherein said force means includes at least one active hinge member disposed between said linear compression elements.
  • 4. A surgical clip assembly according to claim 3, wherein each of said linear compression elements has first and second end portions, and said at least one active hinge member is disposed in proximity to a predetermined one of said first and second end portions.
  • 5. A surgical clip assembly according to claim 4, further including a pair of generally linear securing elements, wherein each of said linear compression elements is associated with one of said pair of generally linear securing elements, said securing elements operative for securing tissue to be compressed by said compression elements and said securing elements forming a securing line when grasping said tissue, the securing line not collinear with the line of compressive force produced by said compression elements.
  • 6. A surgical clip assembly according to claim 5, wherein each of said securing elements includes a gripping portion having a serrated profile formed of a plurality of teeth-like projections over at least part of the length of said securing elements.
  • 7. A surgical clip assembly according to claim 6, wherein said teeth-like projections of said profile are not uniformly distributed along the length of said gripping portion.
  • 8. A surgical clip assembly according to claim 5, further including at least one receiving structure sized and configured to disengageably receive an attachment element of a clip applier, the clip applier exerting a force counter to the force exerted by said at least one hinge member and operable for bringing the clip assembly from its closed position to its open position or vice versa.
  • 9. A surgical clip assembly according to claim 5, wherein said pair of securing elements and said pair of compressing elements are formed from material selected from the group of materials consisting of: an insulative material and an insulative-coated metal material.
  • 10. A surgical clip assembly according to claim 5, wherein said compressing elements and said securing elements are integrally formed with each other.
  • 11. A surgical clip assembly according to claim 5, wherein said compressing elements and said securing elements are joined by a method chosen from the group of methods consisting of: welding, gluing, a mechanical clip, fixating joint or a mechanical press.
  • 12. A surgical clip assembly according to claim 3, wherein said at least one active hinge member includes first and second hinge members, disposed in proximity to said first and second end portions, respectively, of said linear compression elements.
  • 13. A surgical clip assembly according to claim 12, further including a pair of generally linear securing elements, wherein each of said linear compression elements is associated with one of said pair of generally linear securing elements, said securing elements operative for securing tissue to be compressed by said compression elements and said securing elements forming a securing line when grasping said tissue, the securing line not collinear with the line of compressive force produced by said compression elements.
  • 14. A surgical clip assembly according to claim 13, wherein each of said securing elements includes a gripping portion having a serrated profile formed of a plurality of teeth-like projections over at least part of the length of said securing elements.
  • 15. A surgical clip assembly according to claim 13, wherein said compressing elements and securing elements are integrally formed with each other.
  • 16. A surgical clip assembly according to claim 13, wherein said compressing elements and securing elements are joined by a method chosen from the group of methods consisting of: welding, gluing, a mechanical clip, fixating joint or a mechanical press.
  • 17. A surgical clip assembly according to claim 12, wherein said first and second hinge members each has a generally planar body that includes two legs each having an end portion, and each of said hinge members has located at each of its end portions a connector having a single insertable end portion, said connector positioned substantially transversally to said planar body and said clip assembly further includes a pair of generally linear securing elements, wherein each of said linear compression elements is associated with one of said pair of generally linear securing elements, and wherein said single insertable end portion of said connectors is pivotably connected to said compression elements, thereby allowing concurrent mechanical communication between said hinge members and said compression elements.
  • 18. A surgical clip assembly according to claim 12, wherein said first and second hinge members each has a generally planar body that includes two legs each having an end portion, and each of said hinge members has located at each of its end portions a connector having a single insertable end portion, said connector positioned substantially transversally to said planar body and said clip assembly further includes a pair of generally linear securing elements, wherein each of said linear compression elements is associated with one of said pair of generally linear securing elements, and wherein said single insertable end portion of said connectors is pivotably connected to said securing elements, thereby allowing concurrent mechanical communication between said hinge members and said securing elements.
  • 19. A surgical clip assembly according to claim 12, wherein said first and second hinge members each has a generally planar body that includes two legs each having an end portion, and each of said hinge members has located at each of its end portions a connector having first and second insertable end portions, said connector positioned substantially transversally to said planar body and said clip assembly further includes a pair of generally linear securing elements, wherein each of said linear compression elements is associated with one of said pair of generally linear securing elements, wherein said first end portions of said connectors of said hinge members is pivotably. connected to said securing elements, thereby allowing concurrent mechanical communication between said hinge members and said two securing elements, and wherein said second insertable end portions of said connectors is pivotably connected to said compressing elements, thereby allowing concurrent mechanical communication between said first and second hinge members and said two compressing elements.
  • 20. A surgical clip assembly according to claim 19, wherein said connectors of said first and second hinge members are joined to said legs of said hinge members on an inner surface of said legs, thereby to produce a preloaded clip assembly when said connectors are pivotably connected to at least one of said compressing elements and at least one of said securing elements.
  • 21. A surgical clip assembly according to claim 20, wherein said clip assembly further includes at least one gap forming element positioned on at least one end portion of at least one compression element, said gap forming element forming a gap between said compression elements when said clip assembly is in its closed position.
  • 22. A surgical clip assembly according to any of claims 17-20, wherein said two legs of said first and second hinge members are each of the same length.
  • 23. A surgical clip assembly according to any of claims 17-19, wherein said two hinge members are identical but said legs of said hinge members are of different lengths.
  • 24. A surgical clip according to claim 23, wherein one of said compression elements has a hollow tubular structure with an elongated slot at each of its ends positioned on the side of said one of said compression elements proximate to said hinge members, wherein a projection translationally riding in each of said slots is pivotally connected to said hinge elements and said one of said compression elements, so that when said projections ride in said slots away from each other the longer of said legs of each of said hinge members travel in opposite directions from each other thereby causing said hinge members to bring said clip assembly to its open position and when said projections ride in said slots towards each other the longer of said legs of each of said hinge members travel toward each other thereby causing each of said hinge members to bring said clip assembly to its closed position.
  • 25. A surgical clip assembly according to claim 24, wherein said clip assembly further includes two joined threaded bolts positioned inside said hollow compression element, each of said bolts having a different handedness and each having a threaded cylinder with an extension fitted thereon, each of said extensions being pivotably connected to a leg of a different one of said hinge members, said extensions operable as said projections for riding along the elongated slot when said threaded bolts are rotated, wherein when rotating said joined bolts in one direction, said projections, being in mechanical communication with said bolts, travel in said slots in a direction away from each other bringing said clip assembly to its open position and when rotating said joined bolts in a second direction said projections travel in said slots in a direction toward each other thereby bringing said clip assembly to its closed position.
  • 26. A surgical clip assembly according to claim 24, wherein each of said hinge members has a connector positioned near the end portion of one of its legs, said connector operable as said projection for insertion into and translationally riding in said slots, said clip assembly further including wires connected to said connectors, wherein when said wires are pulled said connectors travel in said slots in a direction away from each other thereby bringing said clip assembly to its open position and when said wires are released, said connectors travel in said slots in a direction toward each other thereby bringing said clip assembly to its closed position.
  • 27. A surgical clip assembly according to claim 13, further including at least one receiving structure sized and configured to disengageably receive an attachment element of a clip applier, the clip applier exerting a force counter to the force exerted by said at least one hinge member and operable for bringing the clip assembly from its closed position to its open position or vice versa.
  • 28. A surgical clip assembly according to claim 4, wherein said at least one active hinge member includes a single member, disposed in proximity to said first end portions of said linear compression elements, such that when said clip assembly is in its open position, said linear compression elements form a jaws-like arrangement and said second end portions of said linear compression elements are spaced apart so as to permit positioning of said compression elements about tissue to be secured therebetween.
  • 29. A surgical clip assembly according to claim 28, wherein said single hinge member is fixably connected to said first end portions of said linear compression elements.
  • 30. A surgical clip assembly according to claim 28, wherein there is a selectably movable latch member positioned within a first of said two compression elements and extending past its second end portion and there is an engagement means on the said second end of said second compression element for engaging and holding said latch member in force producing engagement when said pair of compression elements are brought close to each other, and said latch member is moved to engage with said engagement means.
  • 31. A surgical clip assembly according to claim 30, wherein said assembly further includes a wire extending between said second end portion of each of said two compression elements, said wire releasably connected to said latch member and having an extension extending via said second end portion of said second compression element through said first compression element, said extension operative to draw said wire taut when tissue is positioned between said two compressing elements, said taut wire thereby preventing the tissue from moving out from between said pair of compression elements while said clip assembly is brought to its closed position.
Provisional Applications (1)
Number Date Country
60780446 Mar 2006 US