PAUL S JOHNSON
Physician at Archer Rd, Gainesville, FL
License number
Florida 1962
Issued Date
May 12, 1999
Effective Date
Jul 15, 2000
Expiration Date
Jul 1, 2000
Category
Health Care
Type
Registration for Resident/HSE Physician
Address
Address
1600 SW Archer Rd, Gainesville, FL 32610
Professional information
Bipolar Electrosurgical Knife
US Patent:
4202337, May 13, 1980
Filed:
Jun 14, 1977
Appl. No.:
5/806529
Inventors:
John J. Hren - Gainesville FL
David E. Clark - Gainesville FL
David A. Jenkins - Gainesville FL
Paul F. Johnson - Gainesville FL
David E. Clark - Gainesville FL
David A. Jenkins - Gainesville FL
Paul F. Johnson - Gainesville FL
Assignee:
Concept, Inc. - Clearwater FL
International Classification:
A61B 1736, A61N 302
US Classification:
12830314
Abstract:
An electrosurgical instrument for cutting, spot coagulation and point coagulation comprising a nonconductive handle which holds a blade assembly comprising a plurality of electrodes and an insulation member separating the electrodes.
The blade assembly comprises an active center electrode of specified thickness with a recessed tip and is mounted to an extruded insulation member so that it extends outwardly from the insulation member to form a cutting edge.
Split side return electrodes are symmetrically mounted to the insulation member and separated from the center electrode by the insulation member. The electrode area ratio of the return electrode area to the active electrode area falls between 0. 70 and 2. 0 allowing consistent bipolar operation.
The electrodes are connected inside the nonconductive handle to a circuit whose output consists of a high frequency electrical current which forms a circuit through tissue intervening between and in contact with the electrodes when the instrument is used.
Bipolar Electrosurgical Knife
US Patent:
4228800, Oct 21, 1980
Filed:
Apr 4, 1978
Appl. No.:
5/893422
Inventors:
Howard E. Degler - St. Petersburg FL
David E. Clark - Gainesville FL
John J. Hren - Gainesville FL
David A. Jenkins - Gainesville FL
Paul F. Johnson - Gainesville FL
David E. Clark - Gainesville FL
John J. Hren - Gainesville FL
David A. Jenkins - Gainesville FL
Paul F. Johnson - Gainesville FL
Assignee:
Concept, Inc. - Clearwater FL
International Classification:
A61B 1739
US Classification:
12830314
Abstract:
An electrosurgical instrument comprising a handle which holds a blade assembly comprising a plurality of electrodes and insulation members positioned between the electrodes.
The blade assembly comprises a center electrode of specified thickness, insulation members secured to the center electrode and a plurality of side electrodes secured to the insulation members. The center electrode and insulation members are cut to form a cutting edge having a composite angle of less than 120. degree. thus allowing easier electrosurgical performance.
The electrodes are connected inside the nonconductive handle to a circuit whose output consists of a high frequency electrical current which forms a circuit through tissue intervening between and in contact with the electrodes when the instrument is used.
Manufacturing Quality System Guru
Location:
Gainesville, Florida Area
Industry:
Medical Devices