Electrosurgical device

Details Electrosurgical device Electrosurgical device

1995-06-19

2003-08-19

Shay, David M. (Department: 3739)

Surgery

Instruments

Electrical application

C606S040000, C606S046000, C606S049000, C607S099000, C607S101000, C607S115000, C607S116000

Reexamination Certificate

active

06607529

ABSTRACT:

This invention pertains generally to medical probe devices for use in natural body openings and, more particularly, to medical probe devices with scopes such as endoscopes for use in electrosurgical procedures.
Medical probe devices such as electrosurgical or electrocautery catheters have heretofore been provided for treating tissue within the human body. These devices, however, suffer from a number of disadvantages. Among other things, many of these devices are limited in purpose. There is therefore a need and improved electrosurgical device which overcomes these disadvantages.
In general, it is an object of the present invention to provide an electrosurgical device which can be adapted for use with a plurality of conventional rod lens endoscopes.
Another object of the invention is to provide an electrosurgical device of the above character which includes a reusable sheath.
Another object of the invention is to provide an electrosurgical device of the above character which includes at least one needle electrode which can be advanced sidewise of the longitudinal axis of the catheter at a selected angle ranging from 0 to 90°.
Another object of the invention is to provide an electrosurgical device of the above character which includes a second needle electrode which can be selectively advanced or not advanced with the first needle electrode.
Another object of the invention is to provide an electrosurgical device of the above character which permits a generally unobstructed view of the needle electrodes advancing toward the target region in the body.
Another object of the invention is to provide an electrosurgical device of the above character which includes guide cannulas provided with T-shaped slots for providing a relatively smooth bend in the guide cannulas.
Another object of the invention is to provide an electrosurgical device of the above character in which a substantially rigid pull/push member is provided in the guide cannulas for bending and straightening of the guide cannulas.


REFERENCES:
patent: 2008526 (1935-07-01), Wappler et al.
patent: 2038393 (1936-04-01), Wappler
patent: 4016886 (1977-04-01), Doss et al.
patent: 4474174 (1984-10-01), Petruzzi
patent: 4524770 (1985-06-01), Orandi
patent: 5342357 (1994-08-01), Nardella
patent: 5360428 (1994-11-01), Hutchinson, Jr.
patent: 5366490 (1994-11-01), Edwards
patent: 5370675 (1994-12-01), Edwards et al.
patent: 5385544 (1995-01-01), Edwards
patent: 5409453 (1995-04-01), Lundquist
patent: 5421819 (1995-06-01), Edwards
patent: 5423804 (1995-06-01), Kulick
patent: 5435805 (1995-07-01), Edwards
patent: 5667488 (1997-09-01), Lundquist et al.
patent: WO93/15664 (1993-08-01), None
Greenwald Surgical Company, Inc., “Orandi Resectoscope Injection Needle for Injection of Local Anesthetics,” (Undated) Sheet No. P000121.
E.F. Nation, M.D., “Evolution of Knife-Punch Resectoscope,” (Apr. 1976) Urology, vol. VII, No. 4, pp. 417-427.
R. Gutierrez, “Transurethral Treatment of Bladder Neck Obstructions: Endoscopic Prostatic Resection,” (Apr. 1933) History of Urology, vol. II, Chapter V, pp. 137-186.
C.W. Ogden, Heat and the Prostate from Electrolysis to Microwaves: Lessons from an Historical Perspective, (Undated) Abstract, 2 sheets, p. 366.
Graversen, et al., “Transurethral incisions of the prostate under local anaesthesia in high-risk patients: a pilot study,” (1987) Abstract, HealthGate Home Page, p. P000115.
Miller, et al., “Integrated cystoscope: first rigid multipurpose operating cystoscope for local anesthetic endoscopy,” (1989) Abstract, HealthGate Home Page, p. P000116.
Orandi, “Urological endoscopic surgery under local anesthesia: a cost-reducing idea,” (1984) Abstract, HealthGate Home Page, p. P000117.
Orandi, “Transurethral resection versus transurethral incision of the prostate,” (1990) Abstract, HealthGate Home Page, p. P000118.
H. LeVeen, “Method for treating benign and malignant tumors utilizing radio frequency,” (Nov. 16, 1976) Abstract, USPTO.GOV, U.S. patent No. 3,991,770, pp. P000119-P000120.
R. Auhll, “The Use of the Resectoscope in Gynecology,” (Oct. 1990) Biomedical Business International, pp. 91-99.
L. Geddes, “A Short History of the Electrical Stimulation of Excitable Tissue Including Electrotherapeutic Applications,” (1984) A Supplement to The Physiologist, vol. 27, No. 1, pp. P000066-P000071.
W. Moseley, M.D., “The History of Treatment of BPH Including Current Treatment Alternatives,” (Undated) pp. P000187-P000190.
D. Paulson, M.D., “Diseases of the Prostate,” (1989) Clinical Symposia, vol. 41, No. 2., pp. P000191-P000195.
T. Kirwin, “The Treatment of Prostatic Hypertrophy by a New ‘Shrinkage’ Method,” (Aug. 1934) J. Urology, pp. 481-494.

Affiliated with

Also associated with

Rating

Electrosurgical device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrosurgical device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrosurgical device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3088843