Gary S Oehme

US Patent:

8273072, Sep 25, 2012

Filed:

Nov 18, 2009

Appl. No.:

12/621037

Inventors:

Scott E. Jahns - Hudson WI, US
Gary S. Oehme - Ham Lake MN, US
Matthew D. Bonner - Plymouth MN, US
James R. Keogh - Maplewood MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 31/00

US Classification:

604503, 604500, 604511, 604522, 606186

Abstract:

Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for transversely driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force transverse to the shaft. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue.

US Patent:

20040138621, Jul 15, 2004

Filed:

Jan 14, 2003

Appl. No.:

10/341743

Inventors:

Scott Jahns - Hudson WI, US
Gary Oehme - Ham Lake MN, US
Matthew Bonner - Plymouth MN, US
James Keogh - Maplewood MN, US

International Classification:

A61M031/00

US Classification:

604/173000

Abstract:

Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for transversely driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force transverse to the shaft. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue.

US Patent:

20070049863, Mar 1, 2007

Filed:

Oct 10, 2006

Appl. No.:

11/545197

Inventors:

Scott Jahns - Hudson WI, US
Gary Oehme - Ham Lake MN, US
Matthew Bonner - Plymouth MN, US
James Keogh - Maplewood MN, US

International Classification:

A61M 31/00

US Classification:

604048000

Abstract:

Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for transversely driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force transverse to the shaft. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue.