Laparoscopic instrument and cannula assembly and related surgical method
First Claim
Patent Images
1. A surgical port assembly comprising:
- an annular holder disposable in an opening in a patient, said annular holder having an annular wall or sleeve, said annular wall or sleeve being an outermost portion of said holder so that said wall or sleeve is in contact with soft tissues of said patient at said opening upon a disposition of said holder in said opening,said annular holder configured and dimensioned to secure directly to the soft tissues of said patient;
a cannula unit removably attachable to said holder so that said cannula unit is rotatable with respect to said holder about a longitudinal axis, said cannula unit comprising;
a base removably attachable to said holder so as to be disposed at least partially inside said annular wall or sleeve, said base defining a closure surface disposed inside said annular wall or sleeve so that said annular wall or sleeve surrounds said closure surface; and
a plurality of cannulas connected to said base so as to intersect said closure surface within said annular wall or sleeve, said cannulas defining respective access paths passing through said closure surface at mutually spaced locations so as to enable simultaneous insertion of multiple instruments through said closure surface at said locations, said cannulas being separate and distinct tubular members each fixedly connected at one end to said base so that portions of said cannulas contiguous with said closure surface are stationary with respect to said closure surface,wherein said closure surface is located in a main plane, each of said cannulas defining a respective secondary plane to said main plane, said base having a longitudinal axis, each said secondary plane being spaced from said longitudinal axis, andwherein said cannulas are at least three in number and said secondary planes are disposed at angles relative to each other.
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Abstract
A laparoscopic port assembly includes a cannula unit including three cannulas each extending at an acute angle relative to a base. The cannulas are flexible for receiving respective angulated laparoscopic instruments. The cannula unit is rotatingly received in a port holder for rotation about a longitudinal axis of the holder, the holder being disposable in an opening in a patient'"'"'s skin.
234 Citations
24 Claims
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1. A surgical port assembly comprising:
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an annular holder disposable in an opening in a patient, said annular holder having an annular wall or sleeve, said annular wall or sleeve being an outermost portion of said holder so that said wall or sleeve is in contact with soft tissues of said patient at said opening upon a disposition of said holder in said opening, said annular holder configured and dimensioned to secure directly to the soft tissues of said patient; a cannula unit removably attachable to said holder so that said cannula unit is rotatable with respect to said holder about a longitudinal axis, said cannula unit comprising; a base removably attachable to said holder so as to be disposed at least partially inside said annular wall or sleeve, said base defining a closure surface disposed inside said annular wall or sleeve so that said annular wall or sleeve surrounds said closure surface; and a plurality of cannulas connected to said base so as to intersect said closure surface within said annular wall or sleeve, said cannulas defining respective access paths passing through said closure surface at mutually spaced locations so as to enable simultaneous insertion of multiple instruments through said closure surface at said locations, said cannulas being separate and distinct tubular members each fixedly connected at one end to said base so that portions of said cannulas contiguous with said closure surface are stationary with respect to said closure surface, wherein said closure surface is located in a main plane, each of said cannulas defining a respective secondary plane to said main plane, said base having a longitudinal axis, each said secondary plane being spaced from said longitudinal axis, and wherein said cannulas are at least three in number and said secondary planes are disposed at angles relative to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical port assembly comprising:
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a base seatable in an opening in a patient'"'"'s skin, said base defining a closure surface, said closure surface extending substantially parallel to the patient'"'"'s skin at said opening during a surgical procedure previously presented, said base configured and dimensioned to secure directly to the skin of said patient; and a plurality of cannulas connected to said base and defining respective access paths through said closure surface, said cannulas extending at acute angles relative to said closure surface so that said cannulas are inclined relative to the patient'"'"'s skin surface at least in a relaxed or rest configuration of the port assembly, said cannulas being separate and distinct tubular members each connected at one end to said base, portions of said cannulas contiguous with said closure surface being fixed to said base so as to be stationary with respect to said closure surface, wherein said closure surface is located in a main plane and said cannulas have linear configurations, each of said cannulas defining a respective secondary plane to said main plane, said base having a longitudinal axis, each said secondary plane being spaced from said longitudinal axis, and wherein said cannulas are at least three in number and said secondary planes are disposed at angles relative to each other. - View Dependent Claims (13, 14, 15, 16)
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17. A surgical port assembly comprising:
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a base seatable in an opening in a patient, said base configured and dimensioned to be secured by skin of said patient; and at least three separate cannula members connected to said base and defining respective access paths through the opening in the patient enabling positioning of distal ends of separate surgical instruments, said cannula members being oriented at angles relative to one another and to said base in a relaxed or rest configuration of the port assembly, wherein said cannula members are three in number and oriented at angles of 120°
with respect to each other andwherein said cannula members are jointly rotatable relative to said base about an axis perpendicular to the skin of the patient. - View Dependent Claims (18)
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19. A surgical port assembly comprising:
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an annular holder disposable in an opening in a patient, said holder having an outer side and an inner side, said annular holder configured and dimensioned to secure directly to skin of said patient; at least three cannulas; and structure coupling said cannulas to said holder so that said cannulas enable disposition of distal ends of separate instruments in the patient at the opening in the patient, so that said cannulas extend into and are partially surrounded by said holder, and so that said at least three cannulas are jointly rotatable relative to said holder about an axis traversing said holder from said outer side to said inner side, said structure including a base member disposed inside said holder so that said holder surrounds said base member, said cannulas being separate and distinct tubular members connected at respective ends to said base member at mutually spaced locations so as to enable simultaneous insertion of multiple instruments through said base member at said locations, outer surfaces of said cannulas being contiguous with and fixed to said base member so as to be stationary with respect to said base member at points of passage of said cannulas through said base member, wherein said cannulas are oriented at angles with respect to each other. - View Dependent Claims (20, 21, 22, 23)
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24. A surgical port assembly comprising:
- a base seatable in an opening in a patient, said base configured and dimensioned to be secured by skin of said patient; and
at least three separate cannula members connected to said base and defining respective access paths through the opening in the patient enabling positioning of distal ends of separate surgical instruments, said cannula members being oriented at angles relative to one another and to said base in a relaxed or rest configuration of the port assembly, wherein said cannula members are three in number and oriented at fixed angles of about 120°
with respect to each other and wherein said cannula members are jointly rotatable relative to said base.
- a base seatable in an opening in a patient, said base configured and dimensioned to be secured by skin of said patient; and
Specification