Donn D Lobdell

US Patent:

D456075, Apr 23, 2002

Filed:

Feb 26, 2001

Appl. No.:

29/137806

Inventors:

Don A. Clements - Cleburne TX
Donn D. Lobdell - Corona del Mar CA

Assignee:

Alcon Universal Ltd. - Hunenberg

International Classification:

2404

US Classification:

D24121, D9520, D9524, D9551, D9557

US Patent:

6659998, Dec 9, 2003

Filed:

Sep 6, 2001

Appl. No.:

09/948224

Inventors:

Greg L. DeHoogh - Laguna Hills CA
Paul J. Essex - Rancho Santa Margarita CA
Donn D. Lobdell - Corona Del Mar CA
Roger Thomas - Tustin CA
Kirk W. Todd - Yorba Linda CA

Assignee:

Alcon Universal Ltd. - Hunenberg

International Classification:

A61B 1700

US Classification:

606 1, 606 4, 600126

Abstract:

A microsurgical system, and a method of mapping the surgical functions of the microsurgical system to a foot controller operatively coupled with the system, are disclosed. The microsurgical system includes a computer, a foot controller operatively coupled to the computer, and a touch screen display operatively coupled to the computer. The foot controller has a plurality of switches. Each of the switches is for controlling a surgical function of the microsurgical system and for actuation by a users foot. The touch screen display has the ability to display a graphic representation of the foot controller including the plurality of switches, and to display a list of surgical functions so that the list is associated with the graphical representation of one of the plurality of switches. By touching one of the surgical functions in the list, a user can exchange the surgical functions associated with any two of the plurality of switches on the foot controller.

US Patent:

6743245, Jun 1, 2004

Filed:

Dec 15, 2000

Appl. No.:

09/738242

Inventors:

Donn D. Lobdell - Corona Del Mar CA

Assignee:

Alcon Universal Ltd. - Hunenberg

International Classification:

A61B 1732

US Classification:

606171, 604 22, 604 28, 604 31, 604 35, 606170, 600565

Abstract:

An improved, asynchronous method of operating a microsurgical instrument, such as a vitrectomy probe. The instrument includes a port for receiving tissue and an inner cutting member. A flow of tissue is induced into the port with a vacuum source. The port is at least partially occluded with the tissue. The occlusion is detected, and the inner cutting member is actuated to close the port and cut the tissue.

US Patent:

6868720, Mar 22, 2005

Filed:

Feb 28, 2003

Appl. No.:

10/376499

Inventors:

Donn D. Lobdell - Sunol CA, US
Michael D. Morgan - Costa Mesa CA, US

Assignee:

Alcon, Inc. - Hunenberg

International Classification:

G01B005/16

US Classification:

73157, 73157, 73701, 73718, 73745, 600488, 604122

Abstract:

A method of determining the accuracy of a pressure sensor in a surgical cassette is disclosed. The method involves displacing a diaphragm of the sensor a pre-defined amount of displacement, and measuring the force exerted on the diaphragm by the displacing step. The accuracy of the pressure sensor is determined by comparing the force measured in the measuring step to a pre-defined force for the pre-defined amount of displacement.

US Patent:

42050421, May 27, 1980

Filed:

Jun 23, 1978

Appl. No.:

5/918359

Inventors:

Donn D. Lobdell - Golden CO
Stephen J. Herman - Evergreen CO
Joel F. Giurtino - Littleton CO

Assignee:

Cobe Laboratories, Inc. - Lakewood CO

International Classification:

A61M 103

US Classification:

422 47

Abstract:

A blood oxygenator with an oxygen filter in the oxygen inlet chamber, featuring in a particular aspect elevating the filter above the diffuser plug of the oxygenator.

US Patent:

57628050, Jun 9, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/480489

Inventors:

Lori A. Truitt - Golden CO
Frank Corbin - Littleton CO
Donn D. Lobdell - Corona Del Mar CA
Douglas P. Miller - Broomfield CO
Keith Manica - Lakewood CO
George J. Eilers - Evergreen CO
Steven H. Johnson - Lakewood CO
Lawrence L. Leppert - Littleton CO

Assignee:

COBE Laboratories, Inc. - Lakewood CO

International Classification:

B01D 6100
B01D 6132
A61M 114

US Classification:

210645

Abstract:

Blood from a patient is treated extracorporeally by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary chamber of a filtration unit, past a semipermeable membrane located in the filtration unit which separates the primary chamber from a secondary chamber of the filtration unit, out the filtration unit and back to the patient. A replacement fluid is selectively and controllably added to the blood, as required for the selected treatment. A secondary fluid is controllably and selectively introduced into the secondary chamber of the filtration unit for controllably collecting material passing across the semipermeable membrane from the blood or for supplying material to pass across the semipermeable membrane into the blood as required for the selected treatment. Materials are removed from the secondary chamber and collected in accordance with the selected treatment. Blood leaks into the secondary chamber are automatically detected and the rates of blood and fluid flow automatically adjusted in response thereto.

US Patent:

50412159, Aug 20, 1991

Filed:

Nov 22, 1989

Appl. No.:

7/440330

Inventors:

Leonard D. Chamberlain - Boulder CO
Donn D. Lobdell - Englewood CO

Assignee:

Cobe Laboratories, Inc. - Lakewood CO

International Classification:

B01D 6128
B01D 6130

US Classification:

210136

Abstract:

Dialysis unit with vacuum removal therethrough of priming saline and selective circulation therethrough of dialysate and other fluids. The dialyzer unit includes a drain configured to sealingly cooperate with a tubing set having a cap with a central conduit portion and sealing fins for cooperating with the drain, and a venturi in a main effluent passage in fluid communication with the drain.

US Patent:

48251682, Apr 25, 1989

Filed:

May 30, 1986

Appl. No.:

6/869087

Inventors:

Francis T. Ogawa - Lakewood CO
George J. Eilers - Evergreen CO
Michael R. Manes - Littleton CO
Donn D. Lobdell - Englewood CO
Terry D. Boucher - Littleton CO

Assignee:

Cobe Laboratories, Inc. - Lakewood CO

International Classification:

G01N 2706
G01N 2708
G01N 2772

US Classification:

324439

Abstract:

A liquid conductivity sensor which features simply and inexpensively driving the excitation transformer of a two-transformer/fluid-loop remote conductivity sensor with a square wave excitation signal provided by a digital timer and a flip-flop. Also disclosed is using an electrodeless conductivity sensor to sense conductivity of dialysate.