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Número de publicaciónUS20030187376 A1
Tipo de publicaciónSolicitud
Número de solicitudUS 10/396,161
Fecha de publicación2 Oct 2003
Fecha de presentación25 Mar 2003
Fecha de prioridad3 Oct 2001
También publicado comoCA2462541A1, EP1441634A2, US6450983, US6613952, US20030062051, US20050228447, WO2003028523A2, WO2003028523A3
Número de publicación10396161, 396161, US 2003/0187376 A1, US 2003/187376 A1, US 20030187376 A1, US 20030187376A1, US 2003187376 A1, US 2003187376A1, US-A1-20030187376, US-A1-2003187376, US2003/0187376A1, US2003/187376A1, US20030187376 A1, US20030187376A1, US2003187376 A1, US2003187376A1
InventoresRobert Rambo
Cesionario originalRambo Robert D.
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
O-ring for incrementally adjustable incision liner and retractor
US 20030187376 A1
Resumen
An O-ring is provided for use in an adjustable surgical wound protector having a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision. At least one recess is defined in the O-ring that is selectively sized and shaped to enable a snap-action rolling of the O-ring about the cross-sectional center in predetermined increments. The recess may comprise various cross-sectional shapes, such as, at least one circumferential groove, a plurality of circumferentially positioned recesses, or be shaped such that the O-ring comprises a cruciform cross-section. An improved incrementally adjustable apparatus for protecting an incised wound from exposure to bacterial and other harmful contaminants is also provided including a pair of resilient O-rings connected to opposite ends of an impermeable pliable sleeve. One of the O-rings is formed to engage the inner edge of the wound with a portion of the sleeve above the wound capable of being rolled onto the other ring to draw the remaining sleeve portion contiguous with the sides of the wound.
Imágenes(25)
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Reclamaciones(39)
What is claimed is:
1. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least one recess that is selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
2. An O-ring according to claim 1 wherein said at least one recess comprises at least one circumferential groove.
3. An O-ring according to claim 1 comprising a plurality of circumferentially positioned recesses.
4. An O-ring according to claim 1 wherein said at least one recess yields a cruciform cross-section of said O-ring.
5. An O-ring for use in an adjustable surgical wound protector, comprising:
a circular torus having a solid cross-section including a cross-sectional center that is radially equidistant from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
two recesses that are selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
6. An O-ring according to claim 5 wherein said circular cross-section of said O-ring comprises four quadrants wherein material defining two diagonally opposed quadrants is removed, leaving two diagonally opposed recesses.
7. An O-ring according to claim 6 wherein said solid portion of said O-ring defines a first solid quadrant and a diagonally opposed second solid quadrant wherein said first solid quadrant includes a curved outer surface, a curved annular surface, and a sinusoidal surface, and said second solid quadrant includes a curved outer surface, a curved annular surface, and a sinusoidal surface.
8. An O-ring according to claim 7 wherein said first and second curved annular surfaces are at substantially the same radial distance from said central longitudinal axis, and are vertically oriented so as to be substantially parallel with said central longitudinal axis.
9. An O-ring according to claim 5 wherein said sinusoidal surfaces extend transversely relative to said central longitudinal axis.
10. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least one sinusoidal surface that is selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
11. An O-ring according to claim 10 comprising two sinusoidal surfaces.
12. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
a plurality of discrete recesses that are selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
13. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least one continuous recess that is selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
14. An O-ring according to claim 13 comprising a plurality of reinforcing ribs are formed protrude from said at least one continuous recess.
15. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
a plurality of protrusions that are selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
16. An O-ring for use in an adjustable surgical wound protector, comprising:
a circular torus having a solid cruciform cross-section including a cross-sectional center that is radially equidistant from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision, and providing selected snap-action rolling of said O-ring in predetermined increments.
17. An O-ring according to claim 16 wherein said cruciform cross-section forms flat surfaces.
18. An O-ring according to claim 16 wherein said cruciform cross-section forms radiused surfaces.
19. An O-ring for use in an adjustable surgical wound protector, comprising:
a circular torus including a plurality of recesses defined radially inwardly from diametrically opposed positions along the circumference of said O-ring, and a cross-sectional center that is radially equidistant from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision, and providing selected snap-action rolling of said O-ring in predetermined increments.
20. An O-ring according to claim 19 wherein said plurality of recesses are rectilinearly shaped.
21. An O-ring according to claim 19 wherein said plurality of recesses are round.
22. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least one through-hole that is selectively sized and shaped to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
23. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least one convex surface and at least one smooth curved surface to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
24. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least two convex surfaces to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
25. An O-ring for use in an adjustable surgical wound protector, comprising:
a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision; and
at least four convex surfaces to enable a snap-action rolling of said O-ring about said cross-sectional center in predetermined increments.
26. An adjustable surgical wound protector, comprising:
an elongate open-ended tube formed of a pliable material that is impervious to solid and fluid contaminants for inserting lengthwise into a surgical incision;
two O-rings, one each secured around the open ends of said tube having a resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape that is insertable with a lengthwise portion of the sleeve adjacent to one of said O-rings in said surgical incision; and
wherein at least one O-ring comprises at least one recess for enabling selected snap-action rolling of said at least one O-ring for rolling the remaining lengthwise portion of said sleeve on itself about said O-ring to shorten said sleeve in predetermined increments and to resist subsequent lengthening, whereby the sleeve length can be adjusted before or after placement in the wound.
27. An adjustable surgical wound protector according to claim 26 wherein said O-ring comprises a circular torus having a solid cross-section including a cross-sectional center that is radially equidistant from a central longitudinal axis.
28. An adjustable surgical wound protector according to claim 26 wherein said circular cross-section of said O-ring comprises four quadrants wherein material defining two diagonally opposed quadrants is removed, leaving two diagonally opposed recesses.
29. An adjustable surgical wound protector according to claim 28 wherein said solid portion of said O-ring defines a first solid quadrant and a diagonally opposed second solid quadrant wherein said first solid quadrant includes a curved outer surface, a curved annular surface, and a sinusoidal surface, and said second solid quadrant includes a curved outer surface, a curved annular surface, and a sinusoidal surface.
30. An adjustable surgical wound protector according to claim 29 wherein said first and second curved annular surfaces are at substantially the same radial distance from said central longitudinal axis, and are vertically oriented so as to be substantially parallel with said central longitudinal axis.
31. An adjustable surgical wound protector according to claim 30 wherein said sinusoidal surfaces extend transversely relative to said central longitudinal axis.
32. An adjustable surgical wound protector according to claim 26 wherein said sleeve is a thin sheet disposed in a generally cylindrical form with overlapping lengthwise margins sealed together.
33. An adjustable surgical wound protector, comprising:
an elongate open-ended tube formed of a pliable material that is impervious to solid and fluid contaminants for inserting lengthwise into a surgical incision;
two O-rings, one each secured around the open ends of said tube having a resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape that is insertable with a lengthwise portion of the sleeve adjacent to one of said O-rings in said surgical incision; and
wherein said O-rings each comprise a circular torus having a solid cross-section including a cross-sectional center that is radially equidistant from a central longitudinal axis and two recesses that are selectively sized and shaped to enable a snap-action rolling of at least one of said two O-rings about said cross-sectional center in predetermined increments for rolling the remaining lengthwise portion of said sleeve on itself about said O-ring to shorten said sleeve in predetermined increments and to resist subsequent lengthening, whereby the sleeve length can be adjusted before or after placement in the wound.
34. An adjustable surgical wound protector according to claim 33 wherein said circular cross-section of each of said O-rings comprises four quadrants wherein material defining two diagonally opposed quadrants is removed, leaving two diagonally opposed recesses.
35. An adjustable surgical wound protector according to claim 34 wherein said solid portion of each of said O-rings defines a first solid quadrant and a diagonally opposed second solid quadrant wherein said first solid quadrant includes a curved outer surface, a curved annular surface, and a sinusoidal surface, and said second solid quadrant includes a curved outer surface, a curved annular surface, and a sinusoidal surface.
36. An adjustable surgical wound protector according to claim 35 wherein said first and second curved annular surfaces are at substantially the same radial distance from said central longitudinal axis, and are vertically oriented so as to be substantially parallel with said central longitudinal axis.
37. An adjustable surgical wound protector according to claim 36 wherein said sinusoidal surfaces extend transversely relative to said central longitudinal axis.
38. An adjustable surgical wound protector, comprising:
an elongate open-ended tube formed of a pliable material that is impervious to solid and fluid contaminants for inserting lengthwise into a surgical incision;
two O-rings, one each secured around an open end of said tube so that a portion of said tube adjacent to said end is bonded to a portion of the outer surface of each of said O-rings, wherein each of said O-rings has a resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape that is insertable with a lengthwise portion of the sleeve adjacent to one of said O-rings in said surgical incision; and
wherein at least one O-ring comprises at least one recess for enabling selected snap-action rolling of said at least one O-ring for rolling the remaining lengthwise portion of said sleeve on itself about said O-ring to shorten said sleeve in predetermined increments and to resist subsequent lengthening, whereby the sleeve length can be adjusted before or after placement in the wound.
39. An adjustable surgical wound protector, comprising:
an elongate open-ended tube formed of a pliable material that is impervious to solid and fluid contaminants for inserting lengthwise into a surgical incision;
two O-rings, one each secured to an open end of said tube so that a portion of said tube adjacent to said end is thermally bonded to an outer curved surface of each of said O-rings, wherein each of said O-rings has a resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape that is insertable with a lengthwise portion of the sleeve adjacent to one of said O-rings in said surgical incision; and
wherein at least one O-ring comprises at least one recess for enabling selected snap-action rolling of said at least one O-ring for rolling the remaining lengthwise portion of said sleeve on itself about said O-ring to shorten said sleeve in predetermined increments and to resist subsequent lengthening, whereby the sleeve length can be adjusted before or after placement in the wound.
Descripción
    FIELD OF THE INVENTION
  • [0001]
    The present invention relates generally to surgical wound protectors, and more particularly to an adjustable surgical wound protector for use in protecting incised cavity walls of various thicknesses from harmful contaminants during surgery.
  • BACKGROUND OF THE INVENTION
  • [0002]
    The sides of a wound during surgery are inherently susceptible to bacterial infection if touched by contaminated substances such as diseased body parts and fluids as they pass through the wound. Therefore extreme care must be exercised to insure that the exposed sides of an incision are completely covered by a material impervious to solids and fluids containing bacteria and other contaminants before surgery proceeds.
  • [0003]
    Various techniques have been used to insulate any incised tissue from exposure. One form of protection for relatively large incisions typically employs soft cotton sponges held against the sides of the wound by metal retractors to minimize contamination as well as to give the surgeon better access into the operating site. Another form of wound protector, particularly suitable for surgery, is disclosed in U.S. Pat. No. 3,347,227 to Harrower. Harrower discloses a surgical incision protector consisting of a pair of flexible rings joined by a thin, tubular-shaped sheet of flexible material. Harrower's rings have sufficient preforming to give a generally oval shape, be resilient and flexible, and so as to be easily flexed for insertion through a wound opening. The thin sheet is preferably made of plastic and must be impermeable to fluids and bacteria, physiologically inert, unaffected by autoclaving or sterilization, free of electrostatic hazard, resistant to melting, non-flammable, and somewhat elastic. Each of Harrower's flexible rings has a substantially circular cross-section. Harrower's incision protector is assembled by securing each end of the tubular sheet of flexible material to a ring, so that each ring is positioned at an end of the thin sheet of tubular material. In use, one ring is squeezed into an oblong shape, inserted through the peritoneum, and allowed to expand to the preformed shape over the inside edge of the wound. The other ring overlaps the outside edge causing the sleeve to stretch into contiguous contact with the entire surface of the sides and inner and outer edges of the wound. To obtain a form-fitting contiguous contact with the sides of the wound, the circumference of both rings in their preformed shape are slightly larger than that of the incision, and the extended length of the sleeve between the rings is slightly greater than that of the wall thickness. To accommodate variations in wound size, Harrower's wound protectors are manufactured in numerous combinations and permutations of both circumference and length.
  • [0004]
    U.S. Pat. No. 3,347,226 to Harrower describes an adjustable wound protector which reduces, to a degree, the number of sizes required. It requires a number of predetermined lengths similar to U.S. Pat. No. 3,347,227, except the circumference of the wound protector is adjustable, before being installed in the wound, by the rings having telescoping ends, and the side of the sleeve having overlapping lengthwise edges. Any overlapping excess may be cut off. The rings have a maximum adjustable circumference slightly larger than that of the largest incision anticipated so that they are sure to overlap the inner and outer edges of the wound. However, a sleeve length must be selected which will closely conform to the wall thickness at the wound.
  • [0005]
    U.S. Pat. No. 5,524,644, issued to Crook discloses an incrementally adjustable apparatus for protecting an incised wound from exposure to bacterial and other harmful contaminants. Crook provides a pair of resilient O-rings that are connected to opposite ends of an impermeable pliable sleeve. One of the O-rings is formed to engage the inner edge of the wound with a portion of the sleeve which is capable of being rolled onto the other ring to draw the remaining sleeve portion contiguous with the sides of the wound. Significantly, Crook relies upon flat surfaces on the rolled ring, that form an oblate cross-section, to provide a gripping surface to turn the ring about its annular axis.
  • SUMMARY OF THE INVENTION
  • [0006]
    In one preferred embodiment, an O-ring is provided for use in an adjustable surgical wound protector comprising a solid cross-section including a cross-sectional center that is spaced from a central longitudinal axis and a resilient configuration for squeezing into an oblong shape that is insertable into a surgical incision. At least one recess is defined in the O-ring that is selectively sized and shaped to enable a snap-action rolling of the O-ring about the cross-sectional center in predetermined increments. The recess may comprise various cross-sectional shapes, such as, at least one circumferential groove, a plurality of circumferentially positioned recesses, or be shaped such that the O-ring comprises a cruciform cross-section.
  • [0007]
    In one preferred embodiment of the invention, an O-ring is provided for use in an adjustable surgical wound protector that comprises a circular torus having a solid cross-section including a cross-sectional center that is radially equidistant from a central longitudinal axis. This O-ring also comprises a resilient configuration that is suitable for squeezing into an oblong shape that is insertable into a surgical incision. Advantageously, two recesses are formed in the O-ring that are selectively sized and shaped to enable a snap-action rolling of the O-ring about the cross-sectional center in predetermined increments. The circular cross-section of the O-rings preferably comprises four quadrants, with the material defining two diagonally opposed quadrants being removed, leaving two diagonally opposed recesses. The solid portion of each O-ring defines a first solid quadrant and a diagonally opposed second solid quadrant, with the first solid quadrant including a curved outer surface, a curved annular surface, and a sinusoidal surface, and the second solid quadrant also including a curved outer surface, a curved annular surface, and a sinusoidal surface. The first and second curved annular surfaces are preferably disposed at substantially the same radial distance from the central longitudinal axis, and are vertically oriented so as to be substantially parallel with the central longitudinal axis. The sinusoidal surfaces extend transversely relative to the central longitudinal axis.
  • [0008]
    An improved adjustable surgical wound protector is also provided that comprises an elongate open-ended tube formed of a pliable material that is impervious to solid and fluid contaminants for inserting lengthwise into a surgical incision. Two O-rings are one each secured around the open ends of the tube. The O-rings have a resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape that is insertable with a lengthwise portion of the sleeve adjacent to one of the O-rings in the surgical incision. Advantageously, at least one of the O-rings comprises at least one recess for enabling selected snap-action rolling of the at least one O-ring for rolling the remaining lengthwise portion of the sleeve on itself about the O-ring to shorten the sleeve in predetermined increments and to resist subsequent lengthening, whereby the sleeve length can be adjusted before or after placement in the wound.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0009]
    These and other features and advantages of the present invention will be more fully disclosed in, or rendered obvious by, the following detailed description of the preferred embodiment of the invention, which is to be considered together with the accompanying drawings wherein like numbers refer to like parts and further wherein:
  • [0010]
    [0010]FIG. 1 is a perspective, partially broken away view of an incrementally adjustable surgical wound protector formed in accordance with the present invention;
  • [0011]
    [0011]FIG. 2 is a perspective view of an O-ring formed in accordance with a preferred embodiment of the present invention;
  • [0012]
    [0012]FIG. 3 is a cross-sectional view of the O-ring shown in FIG. 2, as taken along lines 3-3 in FIG. 2, and including a portion of the interior side surface of the O-ring;
  • [0013]
    [0013]FIG. 4 is a side elevational view of the O-ring shown in FIG. 2;
  • [0014]
    [0014]FIG. 5 is a broken away, cross-sectional view of the incrementally adjustable surgical wound protector shown in FIG. 1, as taken along lines 5-5 in FIG. 1, illustrating the interconnection between the O-ring and sleeve;
  • [0015]
    FIGS. 6-9 illustrate in sequence, the operation of the incrementally adjustable surgical wound protector shown in FIG. 1;
  • [0016]
    [0016]FIG. 10 is a perspective view of one alternative embodiment of O-ring;
  • [0017]
    [0017]FIG. 11 is a side elevational view of the O-ring shown in FIG. 10;
  • [0018]
    [0018]FIG. 12 is a cross-sectional view, taken along line 12-12 in FIG. 11;
  • [0019]
    [0019]FIG. 12A is a cross-sectional view similar to that shown in FIG. 12, but illustrating an alternative cruciform cross-section having radiused end surfaces;
  • [0020]
    [0020]FIG. 13 is a perspective view of another embodiment of O-ring;
  • [0021]
    [0021]FIG. 14 is a side elevational view of the O-ring shown in FIG. 13;
  • [0022]
    [0022]FIG. 15 is a cross-sectional view, as taken along lines 15-15 in FIG. 14, showing an alternative cruciform cross-section;
  • [0023]
    [0023]FIG. 15A is a cross-sectional view similar to that shown in FIG. 15, but illustrating an alternative cruciform cross-section having radiused end surfaces;
  • [0024]
    [0024]FIG. 16 is a perspective view of yet another alternative embodiment of O-ring;
  • [0025]
    [0025]FIG. 17 is a side elevational view of the O-ring shown in FIG. 16;
  • [0026]
    [0026]FIG. 18 is a cross-sectional view, as taken along line 18-18 in FIG. 17, showing an embodiment of recess used in connection with the present invention;
  • [0027]
    [0027]FIG. 19 is a perspective view of a further alternative embodiment of O-ring;
  • [0028]
    [0028]FIG. 20 is a side elevational view of the O-ring shown in FIG. 19;
  • [0029]
    [0029]FIG. 21 is a cross-sectional view, as taken along the line 21-21 in FIG. 20;
  • [0030]
    [0030]FIG. 22 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0031]
    [0031]FIG. 23 is a front elevational view of the O-ring shown in FIG. 22;
  • [0032]
    [0032]FIG. 24 is a cross-sectional view, as taken along lines 24-24 in FIG. 23;
  • [0033]
    [0033]FIG. 25 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0034]
    [0034]FIG. 26 is a front elevational view of the O-ring shown in FIG. 25;
  • [0035]
    [0035]FIG. 27 is a cross-sectional view, as taken along lines 27-27 in FIG. 26;
  • [0036]
    [0036]FIG. 28 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0037]
    [0037]FIG. 29 is a front elevational view of the O-ring shown in FIG. 28;
  • [0038]
    [0038]FIG. 30 is a cross-sectional view, as taken along lines 30-30 in FIG. 29;
  • [0039]
    [0039]FIG. 31 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0040]
    [0040]FIG. 32 is a front elevational view of the O-ring shown in FIG. 31;
  • [0041]
    [0041]FIG. 33 is a cross-sectional view, as taken along lines 33-33 in FIG. 32
  • [0042]
    [0042]FIG. 34 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0043]
    [0043]FIG. 35 is a front elevational view of the O-ring shown in FIG. 34;
  • [0044]
    [0044]FIG. 36 is a cross-sectional view, as taken along lines 36-36 in FIG. 35;
  • [0045]
    [0045]FIG. 37 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0046]
    [0046]FIG. 38 is a front elevational view of the O-ring shown in FIG. 37;
  • [0047]
    [0047]FIG. 39 is a cross-sectional view, as taken along lines 39-39 in FIG. 38;
  • [0048]
    [0048]FIG. 40 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0049]
    [0049]FIG. 41 is a front elevational view of the O-ring shown in FIG. 40;
  • [0050]
    [0050]FIG. 42 is a cross-sectional view, as taken along lines 42-42 in FIG. 41;
  • [0051]
    [0051]FIG. 43 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0052]
    [0052]FIG. 44 is a front elevational view of the O-ring shown in FIG. 43;
  • [0053]
    [0053]FIG. 45 is a cross-sectional view, as taken along lines 45-45 in FIG. 44;
  • [0054]
    [0054]FIG. 46 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0055]
    [0055]FIG. 47 is a front elevational view of the O-ring shown in FIG. 46;
  • [0056]
    [0056]FIG. 48 is a cross-sectional view, as taken along lines 48-48 in FIG. 47;
  • [0057]
    [0057]FIG. 49 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0058]
    [0058]FIG. 50 is a front elevational view of the O-ring shown in FIG. 49;
  • [0059]
    [0059]FIG. 51 is a cross-sectional view, as taken along lines 51-51 in FIG. 50;
  • [0060]
    [0060]FIG. 52 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0061]
    [0061]FIG. 53 is a front elevational view of the O-ring shown in FIG. 52;
  • [0062]
    [0062]FIG. 54 is a cross-sectional view, as taken along lines 54-54 in FIG. 53;
  • [0063]
    [0063]FIG. 55 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0064]
    [0064]FIG. 56 is a front elevational view of the O-ring shown in FIG. 55;
  • [0065]
    [0065]FIG. 57 is a cross-sectional view, as taken along lines 57-57 in FIG. 56;
  • [0066]
    [0066]FIG. 58 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0067]
    [0067]FIG. 59 is a front elevational view of the O-ring shown in FIG. 58;
  • [0068]
    [0068]FIG. 60 is a cross-sectional view, as taken along lines 60-60 in FIG. 59;
  • [0069]
    [0069]FIG. 61 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0070]
    [0070]FIG. 62 is a front elevational view of the O-ring shown in FIG. 61;
  • [0071]
    [0071]FIG. 63 is a cross-sectional view, as taken along lines 63-63 in FIG. 62;
  • [0072]
    [0072]FIG. 64 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0073]
    [0073]FIG. 65 is a front elevational view of the O-ring shown in FIG. 64;
  • [0074]
    [0074]FIG. 66 is a cross-sectional view, as taken along lines 66-66 in FIG. 65;
  • [0075]
    [0075]FIG. 67 is a perspective view of yet a further alternative embodiment of O-ring;
  • [0076]
    [0076]FIG. 68 is a front elevational view of the O-ring shown in FIG. 67; and
  • [0077]
    [0077]FIG. 69 is a cross-sectional view, as taken along lines 69-69 in FIG. 68.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • [0078]
    This description of preferred embodiments is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description of this invention. In the description, relative terms such as “horizontal,” “vertical,” “up,” “down,” “top” and “bottom” as well as derivatives thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing figure under discussion. These relative terms are for convenience of description and normally are not intended to require a particular orientation. Terms including “inwardly” versus “outwardly,” “longitudinal” versus “lateral” and the like are to be interpreted relative to one another or relative to an axis of elongation, or an axis or center of rotation, as appropriate. Terms concerning attachments, coupling and the like, such as “connected” and “interconnected,” refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. The term “operatively connected” is such an attachment, coupling or connection that allows the pertinent structures to operate as intended by virtue of that relationship. In the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function, including not only structural equivalents but also equivalent structures.
  • [0079]
    Referring to FIG. 1, an incrementally adjustable surgical wound protector 5 comprises a thin flexible sleeve 8 positioned between a first O-ring 10 and a second O-ring 12. Sleeve 8 comprises a tube having a uniform circumference along its length, an upper end edge 16, and a lower end edge 18. Upper end edge 16 of sleeve 8 is fastened or bonded to a surface portion of first O-ring 10 by sealing, e.g., thermally, ultrasonically or, with proper pretreatment, adhesives, but without (i) the portion of sleeve 8 adjacent to upper end edge 16 being wrapped around the circumference of first O-ring 10, or (ii) overlapped upon itself. Likewise, lower end edge 18 of sleeve 8 is fastened or bonded to a surface portion of O-ring 12 by sealing, e.g., thermally, ultrasonically or, with proper pretreatment, adhesives, but without (i) the portion of sleeve 8 adjacent to lower end edge 18 being wrapped around the circumference of O-ring 12, or (ii) overlapped upon itself (FIGS. 5-9). Sleeve 8 may also be attached to O-rings 10, 12 by adhesive, but with less than satisfactory results.
  • [0080]
    Sleeve 8 is preferably formed from a material that is impervious to solids and/or fluids containing bacteria and other harmful contaminants, e.g., a polymer or elastomeric material of the type known in the art. The materials and dimensions of wound protector 5 are selected to ensure stability of the wound protector when installed. A preferred polymer material suitable for sleeve 8 is a heat-sealable 2-mil aromatic polyether polyurethane film, such as the PT6100 series manufactured by Deerfield Urethane, Inc., under the tradename DUROFLEX, that may be produced in seamless tubular form or by a flat sheet in a cylindrical form with the meeting margins along the side overlapped and sealed. Other materials that may be used with good effect include, polyolefins and other like plastomers and elastomers that are suitable for use in medical applications. A nominal sleeve length suitable for surgery is typically from about 100 to about 200 mm. Sleeve diameters will vary according to the length of the surgical incision.
  • [0081]
    First O-ring 10 and second O-ring 12 each are formed so as to engage the inner edge of a surgical incision, with a portion of sleeve 8 above the incision and capable of being incrementally rolled toward the other O-ring to draw the remaining portion of sleeve 8 contiguous with the sides of the incision. O-rings 10 and 12 are preferably formed from an elastomeric medical grade material of sufficient hardness to retain O-rings 10 and 12 expanded in place around the inner and outer edges of the surgical incision. The material must be compliant enough to allow O-ring 10 or 12 to be turned by the fingers over 180 degrees about its center. For this purpose, urethane is a preferred elastomeric material. O-rings 10, 12 may be formed from other resilient materials, such as medical grade, polyvinylchloride, silicon, natural rubber, or other elastomeric or rubber-like materials, with good effect.
  • [0082]
    Referring to FIGS. 1-5, O-rings 10, 12 preferably comprise a circular torus, i.e., a solid formed by the rotation of a circle about an axis that lies in the plane of the circle, but without cutting the circle. O-rings 10, 12 are formed from a solid, initially circular cross-section torus having a cross-sectional center 20 that is radially equidistant from a central longitudinal axis 24 of the O-ring. The circular cross-section of each O-ring 10, 12 may be divided into four quadrants (FIGS. 3, and 5-9). Material defining two diagonally opposed quadrants is removed, leaving two diagonally opposed recesses 26 and 28 (best shown in FIG. 3).
  • [0083]
    The solid portion of O-rings 10, 12 that remains defines a first solid quadrant 30 and a diagonally opposed, second solid quadrant 33. First solid quadrant 30 includes a curved outer surface 36, a curved annular surface 38, and a sinusoidal surface 40. Second solid quadrant 33 includes a curved outer surface 46, a curved annular surface 48, and a sinusoidal surface 50. Curved annular surfaces 38, 48 are at substantially the same radial distance from central longitudinal axis 24, and are vertically oriented so as to be substantially parallel and substantially coaxial with central longitudinal axis 24. Sinusoidal surfaces 40, 50 extend transversely relative to the central longitudinal axis 24 of O-rings 10, 12 (FIGS. 2 and 3).
  • [0084]
    Of course, it will be understood that the term “O-ring” is not limited to circular structures or classic toroidal shapes, but also includes structures that are not circular, e.g., rectilinear, oval/elliptical, hexagonal, octagonal, etc., as long as such rings comprise a resilient configuration capable of being squeezed into an oblong shape that is suitable for insertion into a surgical incision.
  • [0085]
    By way of example, a urethane O-ring 10, 12 for use with a sleeve having a diameter of about 109 mm, has a diameter of about 7.9 mm, with a radial depth of diagonally opposed recesses 26 and 28 of approximately 4.0 mm. Of course, the sizes of the O-rings and sleeves will vary according to incision size and peritoneum wall thickness. The personal preference of the surgeon will also affect the choice of both O-ring and sleeve size for a particular surgical procedure. Each end of sleeve 8 is sealingly fastened or bonded around an O-ring 10, 12, e.g., to a curved outer surface 46, such that when the sleeve is fully extended, O-rings 10, 12 are positioned in spaced-apart relation to one another (FIGS. 1 and 5).
  • [0086]
    The cross-sectional shape of O-rings 10, 12 provides stability in a plane perpendicular to central longitudinal axis 24, and provides an over-center “snap-action” or “snap-roll” when O-ring 10, 12 is rolled about itself and sleeve 8, thereby providing incremental shortening in predetermined increments and resistance to lengthening after shortening. More particularly, by strategically removing portions of O-rings 10, 12 so as to form recesses 26, 28, the rate of twist necessary to create the over-center “snap-action” can be gauged and set. Typically, about 33% to about 70% of the mass of the O-ring must be either removed or redistributed in order to obtain a “snap-action” that is suitable for hand twisting. Thus numerous O-rings (FIGS. 12-39), having differing amounts, locations, and shapes of material removed from their cross-section may be used in connection with the present invention.
  • [0087]
    For example, and referring to FIGS. 10-15, rings 10, 12 may comprise a cruciform cross-sectional profile. In this configuration, the cruciform shape of O-rings 10, 12 provide stability in a plane perpendicular to central longitudinal axis 24 and also provide the over-center, “snap-action” when rolled about themselves and sleeve 8. The embodiment disclosed in FIGS. 10-12 include a cruciform cross-section having flat surfaces 60 and 62. While FIGS. 13-15 show a similar O-ring 10, 12 having radiused surfaces 65 and 67. Of course, the end surfaces of the cruciform cross-section O-ring 10, 12 may also have radiused end surfaces, as shown in FIGS. 12A and 15A.
  • [0088]
    Referring to FIGS. 16-33, O-rings 10, 12 may also include a plurality of recesses defined into a portion of the ring. More particularly, a plurality of recesses 70 are defined radially inwardly into O-ring 10, 12, i.e., toward cross-sectional center 20, from diametrically opposed positions along the circumference of the O-ring. In this way, recesses 70 extend into O-ring 10, 12 from each side in an alternating pattern. FIGS. 16-18 illustrate a rectilinearly shaped plurality of alternating recesses 70, while FIGS. 19-21 illustrate a plurality of round recesses 72 and FIGS. 22-24 illustrate a plurality of round, shallow recesses 72 a disposed on both sides of O-ring 10, 12.
  • [0089]
    Referring to FIGS. 25-33, a sinusoidally defined recess 72 b may be employed with the present invention. FIGS. 25-27 illustrate such a sinusoidal recess 72 b disposed on an inner circumferential surface of O-ring 10, 12, while FIGS. 28-30 illustrate such a sinusoidal recess 72 b disposed on an outer circumferential surface of O-ring 10, 12. FIGS. 31-33 illustrate a pair of sinusoidal recesses 72 b positioned in diametrically opposed relation to one another on O-ring 10, 12. In each of the foregoing cases, the removal of material from O-ring 10, 12 to define recesses 70, 72, or 72 b provides stability in a plane perpendicular to central longitudinal axis 24, and provides an over-center “snap-action” when the O-ring is rolled about itself and sleeve 8.
  • [0090]
    Referring to FIGS. 34-42, O-rings 10, 12 may also have a continuous recess formed in diametrically opposed portions of O-ring 10, 12. More particularly, a top recess 78 and a bottom recess 80 may be formed in O-ring 10, 12 so as to yield “a bow-tie” cross-sectional profile to O-ring 10, 12 (FIGS. 34-36) or may be formed so as to be shallow (FIGS. 37-39). The removal of material from O-ring 10, 12 from diametrically opposed portions in a continuous, or annular fashion, provides stability in a plane perpendicular to central longitudinal axis 24, and provides an over-center “snap-action” when the O-ring is rolled about itself and sleeve 8. A plurality of reinforcing ribs 82 may be formed within top recess 78 and/or bottom recess 80 so as to ease manufacture (FIGS. 40-42).
  • [0091]
    Referring to FIGS. 43-57, O-rings 10, 12 may also be formed so as to have convex top and bottom walls 86, 88, and substantially flat inner and outer, annular side walls 90, 92 (FIGS. 43-45) or convex top and bottom walls 86, 88 and convex inner and outer, annular side walls 94, 96 (FIGS. 46-48). The reduction of material from O-ring 10, 12 coupled with the curvature of either the top and bottom walls 86, 88 or the annular inner and outer side walls 94, 96 provides stability in a plane perpendicular to central longitudinal axis 24, and provides an over-center “snap-action” when the O-ring is rolled about itself and sleeve 8.
  • [0092]
    Additionally, O-ring 10, 12 may also be formed so as to have nonparallel top and bottom walls 100, 102, and convex inner and outer, annular side walls 104, 106 (FIGS. 49-51). Alternatively, O-ring 10, 12 may also be formed so as to have nonparallel, convex top and bottom walls 108, 110, and convex inner and outer, annular side walls 112, 114 (FIGS. 52-54). Also, an additional annular flat 116 may be included at the transition between convex inner and outer, annular side walls 112, 114 and convex top and bottom walls 108, 110 (FIGS. 55-57).
  • [0093]
    Referring to FIGS. 58-, O-rings 10, 12 may also include a plurality of through-holes 120 defined radially through O-ring 10, 12, i.e., through cross-sectional center 20, from diametrically opposed positions along the circumference of the O-ring. FIGS. 58-63 illustrate a plurality of rectilinearly shaped through-holes 120, and double through-holes 122, respectively, while FIGS. 64-66 illustrate a plurality of round through-holes 124. In each case, the removal of material from O-ring 10, 12 to define through-holes 120, 122, or 124 provides stability in a plane perpendicular to central longitudinal axis 24, and provides an over-center “snap-action” when the O-ring is rolled about itself and sleeve 8.
  • [0094]
    Referring to FIGS. 67-69, in some instances, O-rings 10, 12 may have additional material added to their circumference so as to form bulbous protrusions 128 over their outer surface, so as to redistribute the mass of the O-ring 10, 12. This redistribution of mass and concomitant change in the moment of inertia of O-ring 10, 12 also provides stability in a plane perpendicular to central longitudinal axis 24, and provides an over-center “snap-action” when the O-ring is rolled about itself and sleeve 8.
  • [0095]
    Referring again to FIGS. 6-9, when adjustable surgical wound protector 5 is to be used in an abdominal surgical procedure, the abdomen 55 is routinely prepared with antiseptics; the site for the incision is traced on abdomen 55 and covered with a surgical drape; and a muscle-split is made at the site through the peritoneum. One O-ring (identified by reference numeral 12 in FIGS. 6-9) is squeezed lengthwise and inserted into the surgical incision and through the peritoneum, where it is released and returns to its original circular shape. In this position, O-ring 12 is placed within the body cavity and O-ring 10 is positioned outside of the body cavity, with sleeve 8 extending through the body cavity. It will be understood that O-rings 10, 12 are completely interchangeable. Outer O-ring 10 is then gripped by the thumb and fingers and turned outwardly, in opposite directions, so as to roll sleeve 8 incrementally, i.e., so as to create repeated over-center “snap-rolls” of the O-ring. As a consequence, sleeve 8 is reeled onto outer O-ring 10 until outer O-ring 10 abuts the outer surface of abdomen 55. The portion of sleeve 8 that is in the incision, and between O-rings 10, 12 is drawn into contiguous contact with the sides of the incision so as to provide a self-retaining protective barrier during surgery which is impervious to contaminating solids and fluids.
  • [0096]
    Advantages of the Invention
  • [0097]
    Numerous advantages are obtained by employing the present invention.
  • [0098]
    The present invention provides a relatively low cost surgical wound protector of simplified and selectively adjustable design which can be easily installed in a wound and adjusted in place to form fit a wide range of cavity wall thicknesses for protection against harmful contaminants.
  • [0099]
    Another advantage of the invention is the provision of an adjustable wound protector in which relatively few sizes are needed to form fit a wide range of incision sizes and cavity wall thicknesses.
  • [0100]
    Still another advantage of the invention is the provision of a surgical wound protector which can be adjusted after being inserted in a wound to obtain contiguous contact with the sides of the cavity wall.
  • [0101]
    A still further advantage of the invention is the provision of a single, easily manufactured O-ring design that provides for a “snap=action” when rolled in itself so as to reel a sleeve onto the O-ring after being inserted in an incision for securing the sleeve in contiguous contact with the sides of the incision.
  • [0102]
    It is to be understood that the present invention is by no means limited only to the particular constructions herein disclosed and shown in the drawings, but also comprises any modifications or equivalents within the scope of the claims.
Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US2305289 *12 Abr 194015 Dic 1942Coburg HermannSurgical appliance
US3347226 *11 Dic 196417 Oct 1967Harrower Harold WAdjustable wound edge protector
US3347227 *11 Dic 196417 Oct 1967Harold W HarrowerWound edge protector
US4975247 *19 Nov 19874 Dic 1990Medtronic, Inc.Mass transfer device having a microporous, spirally wound hollow fiber membrane
US5366478 *27 Jul 199322 Nov 1994Ethicon, Inc.Endoscopic surgical sealing device
US5514133 *26 Ago 19947 May 1996Golub; RobertAccess device for endoscopic surgery
US5524644 *9 Jun 199511 Jun 1996Medical Creative Technologies, Inc.Incrementally adjustable incision liner and retractor
US5636645 *28 Feb 199510 Jun 1997Ou; HonzenMethod and surgical glove for performing laparoscopic-assisted mini laparotomy
US5640977 *2 Sep 199424 Jun 1997Medical Creative Technologies, Inc.Apparatus and method for use in surgery
US5649550 *26 Feb 199622 Jul 1997Medical Creative Technologies, Inc.Surgical retractor liner and integral drape assembly
US5769794 *4 Sep 199623 Jun 1998Smith & Nephew Endoscopy, IncTissue retrieval bag and method for removing cancerous tissue
US5803921 *20 Feb 19958 Sep 1998Gaya LimitedAccess port device for use in surgery
US5810721 *4 Mar 199622 Sep 1998Heartport, Inc.Soft tissue retractor and method for providing surgical access
US5813409 *29 Mar 199529 Sep 1998Medical Creative Technologies, Inc.Surgical apparatus
US5853395 *18 Feb 199729 Dic 1998Dexterity, Inc.Extracorporeal pneumoperitoneum enclosure and method of use
US5906577 *30 Abr 199725 May 1999University Of MassachusettsDevice, surgical access port, and method of retracting an incision into an opening and providing a channel through the incision
US5957913 *16 Sep 199728 Sep 1999General Surgical Innovations, Inc.Laparoscopic access port for surgical instruments or the hand
US6024736 *29 Jul 199715 Feb 2000General Surgical Innovations, Inc.Laparascopic access port for surgical instruments or the hand
US6033426 *24 Jul 19987 Mar 2000Olympus Optical Co., Ltd.Access device for surgical treatment
US6042573 *11 Dic 199728 Mar 2000Smith & Nephew, Inc.Surgical valve
US6048309 *19 Sep 199711 Abr 2000Heartport, Inc.Soft tissue retractor and delivery device therefor
US6124936 *22 Jun 199926 Sep 2000Keyence CorporationColor discrimination system
US6142935 *24 Mar 19987 Nov 2000Heartport, Inc.Illuminating soft tissue retractor
US6142936 *21 May 19997 Nov 2000University Of MassachusettsSurgical access port and method for accessing a patient's body cavity
US6149642 *16 Ene 199821 Nov 2000Medical Creative Technologies Inc.Surgical instrument and method for use in hand-assisted laparoscopy
US6254533 *7 Jul 20003 Jul 2001Dexterity Surgical, Inc.Retractor assembly and method for surgical procedures
US6254534 *16 Oct 20003 Jul 2001Atropos LimitedRetractor
US6382211 *21 Jul 19977 May 2002Medical Creative Technologies, Inc.Surgical retractor liner appliance
US6450983 *3 Oct 200117 Sep 2002Robert D. RamboO-ring for incrementally adjustable incision liner and retractor
US6613952 *16 Jul 20022 Sep 2003Robert D. RamboO-ring for incrementally adjustable incision liner and retractor
US6723044 *14 Mar 200220 Abr 2004Apple Medical CorporationAbdominal retractor
US20010037053 *9 Mar 20011 Nov 2001Frank BonadioSurgical device for retracting and/or sealing an incision
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US76508873 Jun 200326 Ene 2010Applied Medical Resources CorporationWound retractor
US770420712 Oct 200627 Abr 2010Applied Medical Resources CorporationCircular surgical retractor
US772714612 Oct 20061 Jun 2010Applied Medical ResourcesWound retractor with gel cap
US773630612 Oct 200615 Jun 2010Applied Medical Resources CorporationHand access laparoscopic device
US77491616 Jul 2010Ethicon Endo-Surgery, Inc.Hand assisted laparoscopic device
US77494156 Jul 2010Applied Medical Resources CorporationMethod of making a hand access laparoscopic device
US781556712 Oct 200619 Oct 2010Applied Medical Resources, CorporationSplit hoop wound retractor
US781980026 Oct 2010Ethicon Endo-Surgery, Inc.Fully automated iris seal for hand assisted laparoscopic surgical procedures
US786716411 Ene 2011Atropos LimitedWound retractor system
US78789741 Feb 2011Applied Medical Resources CorporationHand access laparoscopic device
US78834618 Feb 2011Applied Medical ResourcesWound retractor with gel cap
US789217227 Abr 201022 Feb 2011Applied Medical Resources CorporationCircular surgical retractor
US790976012 Oct 200622 Mar 2011Applied Medical Resources CorporationSplit hoop wound retractor with gel pad
US791369729 Mar 2011Applied Medical Resources CorporationWound retractor
US79510767 Oct 200531 May 2011Applied Medical Resources CorporationSurgical access system
US799806816 Ago 2011Atropos LimitedInstrument access device
US801208820 Ago 20076 Sep 2011Atropos LimitedRetractor
US80167553 Dic 201013 Sep 2011Applied Medical Resources CorporationSurgical access apparatus and method
US802129620 Sep 2011Atropos LimitedWound retractor
US80706766 Dic 2011Applied Medical Resources CorporationSurgical access apparatus and method
US810523431 Ene 2012Applied Medical Resources CorporationSurgical access apparatus and method
US810987312 May 20087 Feb 2012Applied Medical Resources CorporationSurgical retractor with gel pad
US812855926 Nov 20076 Mar 2012Ethicon Endo-Surgery, Inc.Tissue retractors
US81578351 Jun 201017 Abr 2012Applied Medical Resouces CorporationAccess sealing apparatus and method
US818717729 Nov 200629 May 2012Applied Medical Resources CorporationSurgical instrument access device
US818717829 May 2012Atropos LimitedInstrument access device
US819740415 Dic 200612 Jun 2012Ethicon Endo-Surgery, Inc.Handoscopy interwoven layered seal laparoscopic disk
US822655212 May 200824 Jul 2012Applied Medical Resources CorporationSurgical retractor
US823152731 Jul 2012Ethicon Endo-Surgery, Inc.Roll-up wound protector with asymmetric ring
US823505422 Feb 20117 Ago 2012Applied Medical Resources CorporationWound retractor
US826256813 Oct 200911 Sep 2012Applied Medical Resources CorporationSingle port access system
US826785818 Sep 2012Applied Medical Resources CorporationWound retractor with gel cap
US830863917 Mar 201113 Nov 2012Applied Medical Resources CorporationSplit hoop wound retractor with gel pad
US831343115 Oct 201020 Nov 2012Applied Medical Resources CorporationSplit hoop wound retractor
US831769120 Abr 200927 Nov 2012Atropos LimitedWound retractor device
US834304722 Ene 20091 Ene 2013Applied Medical Resources CorporationSurgical instrument access device
US8357086 *22 Ene 2013Applied Medical Resources CorporationSurgical instrument access device
US837595519 Feb 2013Atropos LimitedSurgical procedure
US83885265 Mar 2013Applied Medical Resources CorporationWound retraction apparatus and method
US84144879 Abr 2013Applied Medical Resources CorporationCircular surgical retractor
US846551518 Jun 2013Ethicon Endo-Surgery, Inc.Tissue retractors
US848057528 Ago 20129 Jul 2013Applied Medical Resources CorporationSingle port access system
US849658115 Mar 201230 Jul 2013Applied Medical Resources CorporationSurgical access apparatus and method
US851793126 Nov 200727 Ago 2013Ethicon Endo-Surgery, Inc.Tissue retractors
US864726514 Ene 201111 Feb 2014Applied Medical Resources CorporationHand access laparoscopic device
US865774027 Ene 201025 Feb 2014Atropos LimitedInstrument access device
US865774115 Ago 201125 Feb 2014Atropos LimitedWound retractor
US867283913 Sep 201118 Mar 2014Applied Medical Resource CorporationSurgical access apparatus and method
US870303423 Ago 201122 Abr 2014Applied Medical Resources CorporationMethod of making a tack-free gel
US872153727 Jun 201313 May 2014Applied Medical Resources CorporationSingle port access system
US873433623 Abr 200927 May 2014Atropos LimitedWound retractor device
US874078519 Oct 20103 Jun 2014Atropos LimitedWound retractor system
US87582369 May 201224 Jun 2014Applied Medical Resources CorporationWound retractor
US876464527 Feb 20131 Jul 2014Covidien LpSurgical access device and wound protector
US887090412 Mar 201228 Oct 2014Applied Medical Resources CorporationAccess sealing apparatus and method
US88886931 Jul 201118 Nov 2014Atropos LimitedInstrument access device
US88945711 Abr 201425 Nov 2014Applied Medical Resources CorporationSingle port access system
US891136611 Ene 201216 Dic 2014Applied Medical Resources CorporationSurgical access apparatus and method
US893221411 May 201113 Ene 2015Applied Medical Resources CorporationSurgical access system
US89614106 Ene 201224 Feb 2015Applied Medical Resources CorporationSurgical retractor with gel pad
US897358326 Jun 201210 Mar 2015Applied Medical Resources CorporationWound retractor
US89862028 Ago 201124 Mar 2015Atropos LimitedRetractor
US90172491 Mar 201328 Abr 2015Covidien LpSurgical access assembly and method of use therefor
US90172547 Ene 201428 Abr 2015Applied Medical Resources CorporationHand access laparoscopic device
US90786965 Abr 201214 Jul 2015Covidien LpSurgical retractor including polygonal rolling structure
US90845948 Ene 201321 Jul 2015The Board Of Trustees Of The Lealand Stanford Junior UniversityMethods for the prevention of surgical site infections
US909530018 Oct 20124 Ago 2015Atropos LimitedWound retractor device
US910135429 Ago 201211 Ago 2015Applied Medical Resources CorporationWound retractor with gel cap
US911395220 Abr 201525 Ago 2015Covidien LpSurgical access assembly and method of use therefor
US91196665 Mar 20121 Sep 2015Covidien LpAccess port with integrated flexible sleeve
US91491781 Mar 20136 Oct 2015Covidien LpSurgical access assembly and method of use therefor
US919236623 May 201424 Nov 2015Applied Medical Resources CorporationWound retractor
US924169719 Jun 201426 Ene 2016Applied Medical Resources CorporationWound retractor
US92717537 Ago 20031 Mar 2016Atropos LimitedSurgical device
US927790827 Feb 20158 Mar 2016Atropos LimitedRetractor
US928911518 Abr 201322 Mar 2016Applied Medical Resources CorporationNatural orifice surgery system
US928920030 Sep 201122 Mar 2016Applied Medical Resources CorporationNatural orifice surgery system
US929545918 Dic 201429 Mar 2016Applied Medical Resources CorporationSurgical access system
US930797519 Jun 201412 Abr 2016Applied Medical Resources CorporationWound retractor
US930797627 Ene 201412 Abr 2016Atropos LimitedWound retractor
US20040015185 *21 Sep 200122 Ene 2004Ewers Richard C.Surgical access apparatus and method
US20050288558 *1 Sep 200529 Dic 2005Applied Medical Resources CorporationWound retraction apparatus and method
US20080011307 *12 Jul 200617 Ene 2008Beckman Andrew THand assisted laparoscopic device
US20080021359 *18 Jul 200624 Ene 2008Beckman Andrew TRoll-up wound protector with asymmetic ring
US20080021360 *18 Jul 200624 Ene 2008Fihe Carrie IRoll-up wound protector
US20080132765 *1 Dic 20065 Jun 2008Beckman Andrew THand assisted laparoscopic device
US20080146882 *15 Dic 200619 Jun 2008Cropper Michael SHandoscopy Interwoven Layered Seal Laparoscopic Disk
US20080146883 *15 Dic 200619 Jun 2008Kistler Paul HResiliently Supported Seal Cap for Hand Assisted Laparoscopic Surgical Procedures
US20080146884 *15 Dic 200619 Jun 2008Beckman Andrew TFully Automated Iris Seal for Hand Assisted Laparoscopic Surgical Procedures
US20110251463 *13 Oct 2011Tyco Healthcare Group LpBariatric foam port
US20120215070 *3 May 201223 Ago 2012Applied Medical Resources CorporationSurgical instrument access device
EP2260777A1 *11 Oct 200515 Dic 2010Atropos LimitedAn instrument access device
EP2502589A1 *23 Mar 201226 Sep 2012Tyco Healthcare Group LPAccess port with integrated rolling sleeve
EP2520238A1 *1 May 20127 Nov 2012Tyco Healthcare Group LPSurgical retractor including polygonal rolling structure
WO2008011358A1 *16 Jul 200724 Ene 2008Ethicon Endo-Surgery, IncRoll-up wound protector
Clasificaciones
Clasificación de EE.UU.602/42, 128/850, 128/856
Clasificación internacionalA61B17/34, A61B17/08, A61B17/02, A61B19/00
Clasificación cooperativaA61B17/0293, A61B17/3423, A61B17/3431, A61B90/40
Clasificación europeaA61B17/34G4A, A61B17/34G4C, A61B17/02R
Eventos legales
FechaCódigoEventoDescripción
29 Mar 2006ASAssignment
Owner name: MEDICAL CREATIVE TECHNOLOGIES, INC., PENNSYLVANIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RAMBO, ROBERT D.;REEL/FRAME:017379/0510
Effective date: 20060329
30 Mar 2006ASAssignment
Owner name: MCT II, LLC, PENNSYLVANIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEDICAL CREATIVE TECHNOLOGIES, INC.;REEL/FRAME:017388/0355
Effective date: 20060330
12 Abr 2006ASAssignment
Owner name: SBN MCTII, LLC, COLORADO
Free format text: SECURITY AGREEMENT;ASSIGNOR:MCT II, LLC;REEL/FRAME:017448/0987
Effective date: 20060331