Incrementally adjustable incision liner and retractor
DC
First Claim
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1. An adjustable surgical wound protector, comprising:
- an elongate sleeve open at each of opposed ends thereof, said sleeve being made of a pliable material impervious to solid and fluid contaminants for inserting lengthwise in a wound;
an inner O-ring secured around one of said ends, said inner O-ring having a preformed resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape insertable with a lengthwise portion of the sleeve adjacent to said inner O-ring in the wound; and
an outer O-ring secured around the other of said opposed ends, said outer O-ring having surface means formed integral therewith for overlapping the outer edge of the wound, said surface means on said outer O-ring including opposed substantially flat surfaces for enabling tactile gripping and rolling of said sleeve onto said outer O-ring and rolling the remaining lengthwise portion of the sleeve on itself about the outer 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.
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Abstract
An incrementally adjustable apparatus and method of use thereof for protecting an incised wound from exposure to bacterial and other harmful contaminants. A pair of resilient O-rings is 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. Flat surfaces on the other ring provide a gripping surface to turn the ring about its annular axis.
399 Citations
19 Claims
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1. An adjustable surgical wound protector, comprising:
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an elongate sleeve open at each of opposed ends thereof, said sleeve being made of a pliable material impervious to solid and fluid contaminants for inserting lengthwise in a wound; an inner O-ring secured around one of said ends, said inner O-ring having a preformed resilient configuration for overlapping the inner edge of the wound and for squeezing into an oblong shape insertable with a lengthwise portion of the sleeve adjacent to said inner O-ring in the wound; and an outer O-ring secured around the other of said opposed ends, said outer O-ring having surface means formed integral therewith for overlapping the outer edge of the wound, said surface means on said outer O-ring including opposed substantially flat surfaces for enabling tactile gripping and rolling of said sleeve onto said outer O-ring and rolling the remaining lengthwise portion of the sleeve on itself about the outer 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An incrementally adjustable surgical wound protector comprising:
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an elongate sleeve of flexible material open at opposed ends; a first resilient ring secured around one of said ends deformable into an oblong shape for insertion with a portion of said sleeve into a wound and formed to expand against the inner edge of the wound; and a second resilient ring secured around the other of said sleeve ends and formed with an oblate cross-section having opposed chordal surfaces for enabling the gripping and rolling of a remaining portion of said sleeve in increments on itself and against the outer edge of the wound, whereby the sleeve length may be adjusted in increments either before or after placement in the wound. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An incrementally lengthwise adjustable wound protector for use in surgery comprising:
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a elongate flexible sleeve open at opposite ends, an inner ring secured to said sleeve at one end, an outer ring secured to said sleeve at the opposite end, said outer ring having an oblate transverse cross-section defined by a diametrically opposed pair of accurate surfaces interconnected by an opposed pair of chordal surfaces, said chordal surfaces extending outwardly from said sleeve in a plane perpendicular to a central axis extending lengthwise of said sleeve, said outer ring being in a minimally strained stable condition when said chordal surfaces are lying in said plane, said outer ring being operable, when rolled 180°
about its centroid, to roll said sleeve about itself and thereby to adjust the length of the sleeve in increments. - View Dependent Claims (18, 19)
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Specification
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Litigation Data
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Current AssigneeMCT II, LLC
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Original AssigneevMedical Creative Technologies, Inc.
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InventorsCrook, Berwyn M.
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Primary Examiner(s)Brown, Michael A.
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Application NumberUS08/489,044Time in Patent Office368 DaysField of Search128/845, 128/846, 128/888, 602/42, 602/43, 602/50, 602/60, 602/63, 602/75, 602/901US Class Current128/888CPC Class CodesA61B 17/0218 for minimally invasive surg...A61B 17/0293 with ring member to support...A61B 17/3423 Access ports, e.g. toroid s...A61B 17/3431 being collapsible, e.g. mad...A61B 90/40 Apparatus fixed or close to...
