Method and apparatus for performing retro peritoneal dissection
First Claim
1. A cannula for use during a surgical procedure comprising:
- a first end and a second end and a generally tubular body therebetween;
a bore through the generally tubular body of the cannula extending from the first end to the second end, the cannula having a wall defined by an exterior of the generally tubular body and the bore, the wall having a substantially constant thickness at any point about the perimeter of the bore;
a camera insert comprising one or more CMOS or CCD camera devices;
at least one slot disposed on an interior surface of the bore of the cannula configured to receive the camera insert within the at least one slot of the cannula;
at least one first channel configured to insert one or more fastening devices, the at least one first channel integrally formed within the wall of the cannula;
at least one second channel configured to insert one or more illumination devices; and
at least one or more fastening devices configured to fasten the second end to a surgical site; and
wherein the cannula is other than a round cross-section to enable enhanced viewing of the surgical site during the surgical procedure.
1 Assignment
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Accused Products
Abstract
The foregoing application describes a system and method of performing a minimally invasive surgical operation. More specifically, the invention involves the use of disposable cannula and slender dilators of variable lengths, which incorporate a source of illumination to carry light to a surgical site and video capabilities for capturing and displaying images from a CMOS or CCD camera device. According to one embodiment, fiber optics run semi-circumferentially or along walls of the cannula/dilator and terminate at about a centimeter from the distal end of the cannula/dilator, thereby preventing illumination from “bottoming out” at the floor of the incision. According to one alternate embodiment, the light fibers may be fashioned in an annulus around one or more camera chips to provide illumination and video of the surgical site. In still another embodiment, the light fibers may be replaced by light emitting diodes in a more remote light source or alternatively at the distal-tip of the CMOS or CCD camera device.
545 Citations
25 Claims
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1. A cannula for use during a surgical procedure comprising:
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a first end and a second end and a generally tubular body therebetween; a bore through the generally tubular body of the cannula extending from the first end to the second end, the cannula having a wall defined by an exterior of the generally tubular body and the bore, the wall having a substantially constant thickness at any point about the perimeter of the bore; a camera insert comprising one or more CMOS or CCD camera devices; at least one slot disposed on an interior surface of the bore of the cannula configured to receive the camera insert within the at least one slot of the cannula; at least one first channel configured to insert one or more fastening devices, the at least one first channel integrally formed within the wall of the cannula; at least one second channel configured to insert one or more illumination devices; and at least one or more fastening devices configured to fasten the second end to a surgical site; and wherein the cannula is other than a round cross-section to enable enhanced viewing of the surgical site during the surgical procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A cannula for use during a surgical procedure comprising:
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a first end and a second end and a generally tubular body therebetween; a bore through the generally tubular body of the cannula extending from the first end to the second end, the cannula having a wall defined by an exterior of the generally tubular body and the bore, the wall having a substantially constant thickness at any point about the perimeter of the bore; a camera insert comprising one or more CMOS or CCD camera devices; at least one slot disposed on an interior surface of the bore of the cannula configured to receive the camera insert within the at least one slot of the cannula; at least one first channel configured to insert one or more fastening devices, the at least one first channel integrally formed within the wall of the cannula; at least one second channel configured to insert one or more illumination devices; and at least one or more fastening devices configured to fasten the second end to a surgical site. - View Dependent Claims (25)
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Specification