GREGORY J SCHEARS, M.D.
Anesthesiologist Assistant at 1 St, Rochester, MN
License number
Minnesota 44081
Category
Osteopathic Medicine
Type
Anesthesiology
Address
Address
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511
Professional information
Consultant At Mayoclinic
Position:
Consultant at MayoClinic
Location:
Rochester, Minnesota Area
Industry:
Medical Practice
Work:
MayoClinic
-
Consultant
Dr. Gregory J Schears, Rochester MN - MD (Doctor of Medicine)
Specialties:
Pediatric Critical Care Medicine
Address:
Mayo Clinic
200 1St St SW, Rochester 55905
(507) 284-2511 (Phone)
200 1St St SW, Rochester 55905
(507) 284-2511 (Phone)
Certifications:
Anesthesiology, 2009, Pediatric Critical Care Medicine, 2004, Pediatrics, 2011
Awards:
Healthgrades Honor Roll
Languages:
English
Hospitals:
Mayo Clinic
200 1St St SW, Rochester 55905
Mayo Clinic Saint Marys Hospital
1216 2Nd St South #West, Rochester 55902
200 1St St SW, Rochester 55905
Mayo Clinic Saint Marys Hospital
1216 2Nd St South #West, Rochester 55902
Education:
Medical School
University Of Wisconsin Medical School
Graduated: 1986
Johns Hopkins Hospital
St Louis Childrens Hospital
University Of Wisconsin Medical School
Graduated: 1986
Johns Hopkins Hospital
St Louis Childrens Hospital
Method For Catheter Placement
US Patent:
7757695, Jul 20, 2010
Filed:
Sep 7, 2007
Appl. No.:
11/851847
Inventors:
David F. Wilson - Philadelphia PA, US
Gregory J. Schears - Rochester MN, US
Gregory J. Schears - Rochester MN, US
Assignee:
The Trustees of the University of Pennsylvania - Philadelphia PA
International Classification:
A61B 19/00
US Classification:
128899
Abstract:
Light from a small laser diode is inserted in a distal end of a catheter and passed through an optical fiber that is either included in the lumen or incorporated into the wall of an invasive catheter tube during manufacture. The light is selected to be of a wavelength that is minimally absorbed by tissue, preferably in the range from about 620 nm to 1100 nm. 780 nm is preferably used as this is where the tissue absorption is near a minimum. The light passes out the end of the fiber (at the proximal end of the catheter) and through the tissue to the outside of the patient's skin where it is measured. The light pattern is observed by night vision goggles that filter out other frequencies of light. The detected light permits location of the end of the fiber, the positional accuracy depending on the thickness of tissue between the fiber tip and the exterior of the body. The method is highly accurate for small children and for catheters within a few centimeters of the skin surface of adults.
Optical Guidance System For Invasive Catheter Placement
US Patent:
2005007, Mar 31, 2005
Filed:
Jun 19, 2002
Appl. No.:
10/482190
Inventors:
David Wilson - Philadelphia PA, US
Gregory Schears - Rochester MN, US
Gregory Schears - Rochester MN, US
International Classification:
A61B005/05
US Classification:
600424000, 128899000
Abstract:
Light from a small laser diode is inserted in a distal end of a catheter and passed through an optical fiber that is either included in the lumen or incorporated into the wall of an invasive catheter tube during manufacture. The light is selected to be of a wavelength that is minimally absorbed by tissue, preferably in the range from about 620 nm to 1100 nm. 780 nm is preferably used as this is where the tissue absorption is near a minimum. The light passes out the end of the fiber (at the proximal end of the catheter) and through the tissue to the outside of the patient's skin where it is measured. The light pattern is observed by night vision goggles that filter out other frequencies of light. The detected light permits location of the end of the fiber, the positional accuracy depending on the thickness of tissue between the fiber tip and the exterior of the body. The method is highly accurate for small children and for catheters within a few centimeters of the skin surface of adults.
Oxygen Sensor For Internal Monitoring Of Tissue Oxygen In Vivo
US Patent:
2009021, Aug 27, 2009
Filed:
Jan 4, 2007
Appl. No.:
12/087391
Inventors:
David F. Wilson - Philadelphia PA, US
Gregory J. Schears - Rochester MN, US
Gregory J. Schears - Rochester MN, US
International Classification:
A61B 5/1459
US Classification:
600327
Abstract:
Provided is a durable oxygen sensitive probe of sufficient strength to withstand direct tissue pressures in vivo, the probe comprising a sensor chamber within a biocompatible, gas-permeable membrane containing an oxygen sensitive analyte solution producing oxygen quenchable phosphorescence when excited. Further provided is a tissue oxygen detection and measurement system comprising the probe, and methods for use of the probe and the system to directly, rapidly and accurately measure tissue oxygen levels in a patient without reliance on blood vessels or fluid protection of the probe.
Optically Guided System For Precise Placement Of A Medical Catheter In A Patient
US Patent:
7992573, Aug 9, 2011
Filed:
Oct 4, 2005
Appl. No.:
11/242688
Inventors:
David F. Wilson - Philadelphia PA, US
Gregory J. Schears - Rochester MN, US
Gregory J. Schears - Rochester MN, US
Assignee:
The Trustees of the University of Pennsylvania - Philadelphia PA
International Classification:
A61B 5/00, A61B 1/00
US Classification:
128899, 600407, 600424, 600473, 600476
Abstract:
A system is provided comprising an optically-guided catheter having a proximal end, a distal end, and at least one lumen. A light-emitting means is coupled to the catheter, the catheter is inserted into place in the patient, and light is emitted as a point or points from a selected location, usually the distal tip, of the catheter to which it is coupled. The system further comprises an external detection device that detects the transdermally projected light, emitted by the light-emitting point from within the patient, thereby indicating precise placement of the catheter within the patient.