Surgery – Instruments – Electrical application
Patent
1998-06-25
2000-03-21
Kearney, Rosiland
Surgery
Instruments
Electrical application
606 48, 606 50, 606 51, A61B 1736
Patent
active
060397330
ABSTRACT:
A clamping force mechanism and its method of use with electrosurgery allow a user to seal and/or join patient's particular vascular tissue; the mechanism is elongate with user and patient ends. An actuator is at the user end and the effectors are at the patient end. Each effector has a face of an area to contact the particular vascular tissue. A lost motion connection transfers user actuation to the effectors to hold a predetermined clamping force during electrosurgical tissue sealing. A yielding member in the loss motion connection clamps the particular tissue between the faces with a predetermined force. The yielding member is a spring, slip clutch or hydraulic coupling possibly near the actuator. An active electrode is carried on one end effector and a return electrode contacts the tissue so an electrosurgical energy supply connected thereacross delivers energy therebetween. A feedback circuit responds to parameters of energy delivered to tissue. A temperature sensor on one face and an impedance monitor respond to energy delivered. A control applies energy to held tissue to seal and/or join it. The method transfers user actuation of the effectors with the lost motion connection, maintains clamping force while sealing and applying electrosurgical energy to seal and/or join held tissue. Energy is applied to a temperature or an impedance. The method shifts the yielding member so the opposing faces clamp the particular tissue therebetween with the force from the spring via a transfer rod or by the hydraulic coupling or the slip clutch for a range of pressure.
REFERENCES:
patent: 2056377 (1936-10-01), Wappler
patent: 3780416 (1973-12-01), Rider
patent: 4043342 (1977-08-01), Morrison, Jr.
patent: 4279257 (1981-07-01), Hochstein
patent: 4293961 (1981-10-01), Runge
patent: 4387714 (1983-06-01), Geddes et al.
patent: 4637392 (1987-01-01), Sorochenko
patent: 4644950 (1987-02-01), Valli
patent: 5007908 (1991-04-01), Rydell
patent: 5016521 (1991-05-01), Haka
patent: 5047027 (1991-09-01), Rydell
patent: 5061269 (1991-10-01), Muller
patent: 5085659 (1992-02-01), Rydell
patent: 5127412 (1992-07-01), Cosmetto et al.
patent: 5217458 (1993-06-01), Parins
patent: 5282800 (1994-02-01), Foshee et al.
patent: 5290286 (1994-03-01), Parins
patent: 5314424 (1994-05-01), Nicholas
patent: 5334193 (1994-08-01), Nardella
patent: 5342357 (1994-08-01), Nardella
patent: 5354296 (1994-10-01), Turkel
patent: 5456684 (1995-10-01), Schmidt et al.
patent: 5527313 (1996-06-01), Scott et al.
patent: 5540684 (1996-07-01), Hassler, Jr.
patent: 5542945 (1996-08-01), Fritzsch
patent: 5665100 (1997-09-01), Yoon
patent: 5674220 (1997-10-01), Fox et al.
patent: 5702390 (1997-12-01), Austin et al.
patent: 5727412 (1998-03-01), Tippins et al.
Buysse Steven P.
Kennedy Jenifer S.
Lands Michael J.
Loeffler Donald R.
Lukianow S. Wade
Kearney Rosiland
Valleylab Inc.
LandOfFree
Method of vascular tissue sealing pressure control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of vascular tissue sealing pressure control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of vascular tissue sealing pressure control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-726622