Procedural cannula and support system for surgical procedures
First Claim
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1. A surgical access system comprising:
- an elongate support proportioned for insertion into a body cavity;
an expandable frame supported by the elongate support, the frame expandable to an expanded position; and
first and second tool cannulas each having a deflectable distal portion, the first and second tool cannulas pivotally coupled to the expandable frame such that the deflectable distal portions are distal to the distalmost portion of the frame, and a third tool cannula coupled to the frame, the third tool cannula longitudinally slidable relative to the elongate support between a first position and a second position to expand the frame to the expanded position, each tool cannula having a lumen for receiving a tool for performing a procedure within the body cavity;
wherein the frame includes at least two frame members, each frame member having a first end pivotally coupled to one of the first and second tool cannulas and a second end pivotally coupled to the third tool cannula.
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Abstract
A system for performing minimally invasive medical procedures includes an elongate support advanceable into a body cavity. The elongate support supports a frame that carries a pair of tool cannulas, each of which has a lumen for receiving a tool useable to perform a procedure in the body cavity. The frame is expandable using pivotable frame members to orient the tool cannulas such that they allow the tools to be used in concert to carry out a procedure at a common location in the body cavity.
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Citations
26 Claims
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1. A surgical access system comprising:
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an elongate support proportioned for insertion into a body cavity; an expandable frame supported by the elongate support, the frame expandable to an expanded position; and first and second tool cannulas each having a deflectable distal portion, the first and second tool cannulas pivotally coupled to the expandable frame such that the deflectable distal portions are distal to the distalmost portion of the frame, and a third tool cannula coupled to the frame, the third tool cannula longitudinally slidable relative to the elongate support between a first position and a second position to expand the frame to the expanded position, each tool cannula having a lumen for receiving a tool for performing a procedure within the body cavity; wherein the frame includes at least two frame members, each frame member having a first end pivotally coupled to one of the first and second tool cannulas and a second end pivotally coupled to the third tool cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical access system comprising:
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an elongate support proportioned for insertion into a body cavity; an expandable frame supported by the elongate support, the frame expandable to an expanded position; and first and second tool cannulas each having a deflectable distal portion, the first and second tool cannulas coupled to the expandable frame such that the deflectable distal portions are distal to the distalmost portion of the frame, each tool cannula having a lumen for receiving a tool for performing a procedure within the body cavity; wherein the frame includes at least two frame members, each frame member pivotally coupled to a tool cannula. - View Dependent Claims (13)
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14. A method of performing a minimally invasive medical procedure, comprising the steps of:
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inserting an elongate support through an incision into a body cavity, wherein the support includes a frame on its distal end and first, second, and third tool cannulas, the frame including at least two frame members, each having a first end pivotally coupled to the third tool cannula and a second end pivotally coupled to one of the first and second tool cannulas; longitudinally sliding the third tool cannula relative to the first and second tool cannulas to pivot the frame members, expanding the frame within the body cavity; positioning medical tools within the tool cannulas and performing a procedure within the body cavity using the medical tools; and deflecting distal portions of the first and second tool cannulas to alter the positions of the medical tools extending through the tool cannulas into the body cavity, said distal portions positioned distally of the distalmost portion of the frame. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification