Theodore K Richardson

US Patent:

6391029, May 21, 2002

Filed:

Sep 29, 2000

Appl. No.:

09/675687

Inventors:

Michael D. Hooven - Cincinnati OH
Theodore A. Richardson - Cincinnati OH

Assignee:

Enable Medical Corporation - West Chester OH

International Classification:

A61B 1814

US Classification:

606 50, 606 46, 606 48, 606 51, 606170, 606174

Abstract:

Bipolar electrosurgical scissors are disclosed having a pair of blades joined for relative movement in a scissor-like action between open and closed positions. The blades comprise a tissue contacting surface and first and second spaced apart electrodes extending along the surface. Current flow between the first and second electrodes of each blade and between each blade to promote hemostasis in tissue contacting the surface.

US Patent:

6464701, Oct 15, 2002

Filed:

Sep 29, 2000

Appl. No.:

09/675832

Inventors:

Michael D. Hooven - Cincinnati OH
Theodore A. Richardson - Cincinnati OH

Assignee:

Enable Medical Corporation - West Chester OH

International Classification:

A61B 1814

US Classification:

606 50, 606 48, 606 51, 606170, 606174

Abstract:

Bipolar electrosurgical scissors are disclosed having a pair of blades joined for relative movement in a scissor-like action between open and closed positions. The blades comprise a tissue contacting surface and first and second spaced apart electrodes extending along the surface. Current flow between the first and second electrodes of each blade and between each blade to promote hemostasis in tissue contacting the surface.

US Patent:

6673087, Jan 6, 2004

Filed:

Dec 15, 2000

Appl. No.:

09/739054

Inventors:

Tenny Chang - Mountain View CA
Charles Gresl - San Francisco CA
John Lunsford - San Carlos CA
Jon A. Sherman - Cincinnati OH
Theodore A. Richardson - Cincinnati OH

Assignee:

Origin Medsystems - Menlo Park CA

International Classification:

A61B 1732

US Classification:

606174, 606 50, 606170

Abstract:

Surgical scissors include a pair of scissor blades mounted at a distal end of an elongated flexible body and a housing attached to the proximal end of the elongated body. An actuator is coupled with mechanical advantage to the scissor blades for manually controlling shearing movement of the blades in response to finger movement on the actuator back and forth along the housing. Electrical conductors are provided through body and housing from a connector to the scissor blades. The housing is configured to be assembled in mating shells with components assembled in and confined by attached shells that facilitate rapid and accurate fabrication.

US Patent:

7947041, May 24, 2011

Filed:

Aug 19, 2009

Appl. No.:

12/543973

Inventors:

Philip M. Tetzlaff - Austin TX, US
Carolyn Mihaichuk - Longmont CO, US
Duane E. Kerr - Loveland CO, US
David A. Schechter - Longmont CO, US
Jonathon Sherman - Cincinnati OH, US
Theodore Richardson - Cincinnati OH, US
Gregory Drach - Liberty Township OH, US

Assignee:

Covidien AG - Neuhausen am Rheinfall

International Classification:

A61B 18/14

US Classification:

606 51, 606 52

Abstract:

A bipolar electrosurgical instrument for clamping, grasping, manipulating, and sealing tissue includes first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof. The handle being operable to effect movement of the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The bipolar instrument is connectable to a source of electrical energy having a first electrical potential connected to one of the jaw members and a second electrical potential connected to the other of the jaw members such that the jaw members are capable of selectively conducting energy though tissue held therebetween to effect a seal. Both the first and second electrical potentials are transmitted to the jaw members through the first shaft.

US Patent:

20080167651, Jul 10, 2008

Filed:

Dec 21, 2007

Appl. No.:

12/004986

Inventors:

Philip M. Tetzlaff - Austin TX, US
Carolyn H. Mihaichuk - Longmont CO, US
Duane E. Kerr - Berthoud CO, US
David A. Schechter - Longmont CO, US
Jon Sherman - Cincinnati OH, US
Theodore Richardson - Cincinnati OH, US
Greg Drach - Liberty Township OH, US

International Classification:

A61B 18/14

US Classification:

606 51

Abstract:

A bipolar electrosurgical instrument for clamping, grasping, manipulating, and sealing tissue includes first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof. The handle being operable to effect movement of the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The bipolar instrument is connectable to a source of electrical energy having a first electrical potential connected to one of the jaw members and a second electrical potential connected to the other of the jaw members such that the jaw members are capable of selectively conducting energy through tissue held therebetween to effect a seal. Both the first and second electrical potentials are transmitted to the jaw members through the first shaft.

US Patent:

20080319440, Dec 25, 2008

Filed:

Jun 19, 2007

Appl. No.:

11/764850

Inventors:

Theodore A. Richardson - Cincinnati OH, US

International Classification:

A61B 18/14

US Classification:

606 42

Abstract:

An electrosurgical system is provided having a handpiece adapted to receive a plurality of different end effectors such that, when a particular end effector is attached to the handpiece, the end effector is recognized by either or both the handpiece and a separate electrosurgical generator so that the operational parameters for the particular end effector attached to the handpiece are selected.

US Patent:

59515490, Sep 14, 1999

Filed:

Dec 20, 1996

Appl. No.:

8/771231

Inventors:

Theodore A. Richardson - Cincinnati OH
Matthew J. Winkler - Cincinnati OH
Michael D. Hooven - Cincinnati OH

Assignee:

Enable Medical Corporation - West Chester OH

International Classification:

A61B 1736

US Classification:

606 45

Abstract:

An electrosurgical instrument, such as a scissors, in which the handle and blade members are of a conventional construction. Each blade member supports a detachable cartridge member made of an insulating material and supporting at least one electrode. The cartridge members do not interfere with the cutting engagement of the blade members. Each cartridge member can also permit relative movement between its electrode and associated cutting edge from a first position in which the electrodes are between the cutting edges (when the blades are open) to a second position in which each electrode is behind its respective cutting edge (as the blades are closed).

US Patent:

61135968, Sep 5, 2000

Filed:

Oct 10, 1997

Appl. No.:

8/948745

Inventors:

Michael D. Hooven - Cincinnati OH
Theodore A. Richardson - Cincinnati OH

Assignee:

Enable Medical Corporation - West Chester OH

International Classification:

A61B 1736

US Classification:

606 42

Abstract:

An electrosurgical instrument system including an RF energy source that has two bipolar terminals of opposite polarity and two monopolar terminals, one being active and the other being passive. Switches are provided for selectively energizing the bipolar terminals and the monopolar terminals. The system includes an electrosurgical instrument that has two tissue-contacting members and at least two electrodes. One electrode may be associated with each of the tissue-contacting members, or both electrodes may be associated with one of the tissue-contacting members. Two conductors are provided for connecting the two electrodes to the positive and negative bipolar terminals respectively. A third conductor is provided for connecting either of the electrodes or one of the tissue-contacting members to the active monopolar terminal. The system also includes a patient return electrode pad which is in electrical communication with the pass of monopolar terminal. Consequently, the instrument may be selectively used in the either the monopolar mode or the bipolar mode by engagement of the appropriate switch.