Instruments and methods for use in laparoscopic surgery
AssigneeMark LoGuidice
InventorsJohn I. Shipp, Jeffrey P. White
Life of this patent
Estimating the term…
Abstract
A surgical dilator extractor is introduced into the abdominal cavity through a trocar cannula and expanded, forming a tissue receiving space, at the distal end. The tissue that is to be extracted is then manipulated into the space with a grasper inserted through a lumen in the dilator extractor. The tissue is then removed from the cavity by the surgeon applying a force onto the dilator extractor that insures the elongation of the tissue and temporarily dilates the entry wound to the extent necessary for the tissue to be removed. Alternative embodiments of the surgical dilator extractor and related instrument tool sets and methods for the use thereof also are disclosed.
Claims84
A method for aspirating material from an animal or human body cavity, the method comprising the steps of:
- inserting an instrument adapted to manipulate the tissue through the body cavity, the instrument having a passage therein;
- suctioning fluid from the tissue through the passage of the instrument;
- and
- dilating the cavity to remove tissue that is unable to fit completely within a cannula without substantial compression of the tissue.
A method for removing tissue from an animal or human body cavity that is unable to fit completely within a cannula without substantial compression, the method comprising the steps of:
- inserting the cannula into the cavity;
- inserting a dilator having a leading end through the cannula;
- expanding the leading end of the dilator to an expanded position;
- inserting a grasper through the dilator;
- grasping the tissue with the grasper;
- moving the tissue with the grasper into the dilator;
- and
- removing the cannula and the dilator together with the dilator remaining substantially in the expanded position.
A surgical tool set for removing tissue from an animal or human body cavity, said tool set comprising:
- a surgical extractor dilator having a leading end, a trailing end, a length therebetween, and a lumen between the leading and trailing ends, said leading end having a dilator movable between an unexpanded position and an expanded position;
- a grasper insertable within said lumen of said surgical extractor dilator, said grasper having a leading end with grasping surfaces, a trailing end with a handle, and a lumen between the leading and trailing ends, said lumen of said grasper adapted to permit the passage of a surgical instrument therethrough, said grasper having a length greater than the length of said surgical extractor dilator;
- and
- an elongated needle adapted to insert within said lumen of said grasper, said needle having a length sufficient to extend beyond a distal end of said grasper.
A surgical extractor for moving tissue from an animal or human body cavity, the extractor comprising:
- a body having a leading end, a trailing end, a longitudinal axis, and a lumen between said leading and trailing ends;
- a dilator at the leading end of said body being movable between an unexpanded position and an expanded position, said dilator having an inner surface;
- and
- tissue retaining protrusions on said inner surface of said dilator, said tissue retaining protrusions being uniformly spaced around the longitudinal axis of said body and being configured to generally point towards said trailing end of said body when said dilator is in the expanded position.
A surgical extractor for removing tissue from an animal or human body cavity, the extractor comprising:
- a body having a leading end, a trailing end, a longitudinal axis, and a lumen between said leading and trailing ends;
- a dilator at the leading end of said body being movable between an unexpanded position and an expanded position, said dilator having an inner surface, said dilator including a cell migration barrier formed between at least two different materials;
- and
- tissue retaining protrusions on said inner surface of said dilator, said tissue retaining protrusions being uniformly spaced around the longitudinal axis of said body.
A surgical extractor for removing tissue from an animal or human body cavity, the extractor comprising:
- a body having a leading end, a trailing end, a longitudinal axis, and a lumen between said leading and trailing ends;
- a dilator at the leading end of said body being movable between an unexpanded position and an expanded position said dilator having an inner surface and a memory element configured to expand said dilator from the unexpanded position to a expanded position, said memory element being along a circumference of said dilator;
- and
- tissue retaining protrusions on said inner surface of said dilator, said tissue retaining protrusions being uniformly spaced around the longitudinal axis of said body.
A surgical extractor for removing tissue from an animal or human body cavity, the extractor comprising:
- a body having a leading end, a trailing end, a longitudinal axis, and a lumen between said leading and trailing ends;
- and
- a dilator at the leading end of said body being movable between an unexpanded position and an expanded position, said dilator having an inner surface made substantially of a first material and an outer surface made substantially of a second material, said first material of said inner surface having a coefficient of friction greater than a coefficient of friction of said second material of said outer surface.
A surgical extractor for removing tissue from an animal or human body cavity, the extractor comprising:
- a body having a leading end, a trailing end, a longitudinal axis, and a lumen between said leading and trailing ends;
- a dilator at the leading end of said body being movable between an unexpanded position and an expanded position;
- and
- a retainer for restricting said dilator in the unexpanded position, said retainer being adapted to be removed from said dilator, thereby allowing said dilator to move to the expanded position, said retainer including a grip proximate said trailing end of said body for peeling open said retainer.
A surgical extractor for removing tissue from an animal or human body cavity of a patient, the extractor comprising:
- a body having a leading end, a trailing end, a longitudinal axis, and a lumen between said leading and trailing ends;
- a dilator at the leading end of said body being movable between an unexpanded position and an expanded position, said dilator having a leading end;
- a cover at the leading end of said dilator adapted to capture the tissue prior to the extraction thereof from the patient;
- and
- a draw cable running through said lumen of said body, and having at least one loop at the leading end of said cover, said draw cable being adapted to draw in said cover upon moving said draw cable away from the trailing end of said body.
A method for removing tissue from an animal or human body cavity, the method comprising the steps of:
- inserting a cannula into the cavity;
- inserting a dilator into the cannula, the dilator having a leading end with a cover attached thereto, the cover having draw cable adapted to draw in the cover;
- expanding the leading end of the dilator to an expended position;
- moving the tissue into the dilator;
- and
- drawing the draw cable.
A method of removing tissue from an animal or human body cavity, the method comprising the steps of:
- inserting a cannula into the body cavity;
- inserting a dilator having a leading end through the cannula;
- expanding the leading end of the dilator to an expanded position;
- inserting a grasper having a passage into the body cavity;
- suctioning fluid from the cavity through the passage of the grasper;
- and
- grasping the tissue to remove the tissue from the cavity.
Dependencies are inferred from the claim text.