Abstract:
A minimally invasive retractor and dissector (10) for internal surgical use on a patient has a tubular support (11) for passing into the body; the tubular support (11) has a passage (16) for access along an axis "A" thereof during operative procedures on the patient's internal tissue. A proximal end (12) on the tubular support (11) is located outside the patient in position to be accessed by the surgeon when a distal end (13) is inside. One or more jointed articulated members (15) are movably positioned and capable of holding and pulling tissue disposed beyond the distal end (13) and each member has a distal tip (17) to hold tissue. An instrument capable of moving independent of any member functions cooperatively on the tissue and passes through the passage (16) from the proximal end (12) to beyond the distal end (13) as the members position the tissue. The instrument is a surgical tool and the tissue is maneuvered by the members within the body into a position relative to the tool. A control (19) at the proximal end (12) manipulates the members relative to the axis "A" permitting holding and pulling tissue disposed beyond the distal end (13); the control (19) is capable of moving the instrument independent of the members for operating on the held and maneuvered tissue. A grip (34) manipulates the members and positions the instrument. A method for using the minimally invasive retractor and dissector (10) has the steps of making an opening for a tubular support (11) to pass into the body, leaving the proximal end (12) on the tubular support (11) outside the body, positioning the distal end (13) thereof inside, and moving members carried on the tubular support (11). Holding and pulling tissue disposed beyond the distal end (13) and using the passage (16) for access along the axis thereof for operating on internal tissue are added steps. Another step is moving an instrument in the passage (16) independent of the members.
Abstract:
A device (10) for retrograde hole opening through tissue has a member (11) elongate on an axis with a cross section shaped to insert axially through external tissue. A distal and a proximal end (13) of the member (11) respectively enter the tissue during placement and remain outside the tissue for control (26). A tip (14) at the distal end (12) has a deployable tissue divider (16) with one or more tissue parting elements (17) and each has a splitter (18). The tissue parting elements (17) are located within the cross-sectional dimensions of the member (11) in a storage position and are movable relative to the tip (14) for placement in an exposed position relative to the tip (14) when shifted from storage so that the splitter (18) thereof splits tissue during retrograde extraction along the axis and contact with tissue. Linkage (19) between the proximal end (13) and the deployable tissue divider (16) retains each of the tissue parting elements (17) with its splitter (18) exposed. The deployable tissue divider (16) has an electrode (23) for transmitting radio frequency energy received from the proximal end (13) to at least each splitter (18). A return path (27) completes the circuit to provide an electrosurgical effect during the retrograde extraction. A method of placing the device (10) for retrograde hole opening aligns the axis of the elongate member (11) normal to the outside abdominal wall of the body, places the distal end (12) through the tissue and leaving the proximal end (13) outside of the tissue, deploys the tissue divider (16) having one or more tissue parting elements (17) that are first located in a storage position within the cross section to an exposed position with the splitter (18) of each element positioned to split tissue, moves each element axially while exposed and fixed and splits tissue during extraction from the body cavity.
Abstract:
An electrosurgical generator is equipped with a smoke evacuator which becomes active upon acting either on the foot pedal (16) or on the activation button on the hand piece (32). Evacuation however only takes place when the suction motor (29a) is activated by a trigger device (14) via other components (25, 37, 27) whenever HF current begins to flow. The rate of suction is determined by a smoke detector (42) placed on the smoke passage (30). A similar system can be used for total or partial removal of liquids from the operation site.
Abstract:
An electrosurgical generator is equipped with a smoke evacuator which becomes active upon acting either on the foot pedal (16) or on the activation button on the hand piece (32). Evacuation however only takes place when the suction motor (29a) is activated by a trigger device (14) via other components (25, 37, 27) whenever HF current begins to flow. The rate of suction is determined by a smoke detector (42) placed on the smoke passage (30). A similar system can be used for total or partial removal of liquids from the operation site.
Abstract:
A minimally invasive retractor and dissector (10) for internal surgical use on a patient has a tubular support (11) for passing into the body; the tubular support (11) has a passage (16) for access along an axis 'A' thereof during operative procedures on the patient's internal tissue. A proximal end (12) on the tubular support (11) is located outside the patient in position to be accessed by the surgeon when a distal end (13) is inside. One or more jointed articulated members (15) are movably positioned and capable of holding and pulling tissue disposed beyond the distal end (13) and each member has a distal tip (17) to hold tissue. An instrument capable of moving independent of any member functions cooperatively on the tissue and passes through the passage (16) from the proximal end (12) to beyond the distal end (13) as the members position the tissue. The instrument is a surgical tool and the tissue is maneuvered by the members within the body into a position relative to the tool. A control (19) at the proximal end (12) manipulates the members relative to the axis 'A' permitting holding and pulling tissue disposed beyond the distal end (13); the control (19) is capable of moving the instrument independent of the members for operating on the held and maneuvered tissue. A grip (34) manipulates the members and positions the instrument. A method for using the minimally invasive retractor and dissector (10) has the steps of making an opening for a tubular support (11) to pass into the body, leaving the proximal end (12) on the tubular support (11) outside the body, positioning the distal end (13) thereof inside, and moving members carried on the tubular support (11). Holding and pulling tissue disposed beyond the distal end (13) and using the passage (16) for access along the axis thereof for operating on internal tissue are added steps. Another step is moving an instrument in the passage (16) independent of the members.