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Stephan A Defonzo

from Chesterbrook, PA
Age ~63
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Also known as:
Anthony M Defonzo, Stephen A Defonzo, Stephan A Fonzo
Phone and address:
73 Amity Dr, Wayne, PA 19087
(610) 644-3761
Related to:
Alana A DerarioNichole Defonzo, 52Thomas Degirolamo, 71Katherine M Defonzo, 28Marion D Fonzo, 90Lilian D Raismes, 56
Connected to:
Anthony P Defonzo, 83Michael Defonzo, 47Ean L Defoor, 38Erica Defoor, 40Jennifer Defoor, 39Leanne M Defoor, 51Machala A Defoor, 34Sherry Defoor, 79Tammy E Defoor, 55Filip P Defoort, 51

Stephan Defonzo Phones & Addresses

  • 73 Amity Dr, Chesterbrook, PA 19087 (610) 644-3761
  • Wayne, PA
  • Sea Bright, NJ
  • 42 Colt Rd, Summit, NJ 07901 (908) 273-9031
  • 39 Plateau Ave, Bridgeport, CT 06606 (203) 371-4003 (203) 371-5305
  • Phoenixville, PA
  • Milford, CT
  • Chester, PA
  • Tredyffrin, PA

Work

Company: Rex medical Position: Chief engineer

Industries

Medical Devices

Resumes

Resumes

Stephan Defonzo Photo 1

Vice President, Research And Development

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Location:
73 Amity Dr, Chesterbrook, PA 19087
Industry:
Medical Devices
Work:
Rex Medical
Chief Engineer

Publications

Us Patents

Seal Assembly

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US Patent:
6569120, May 27, 2003
Filed:
Mar 7, 1997
Appl. No.:
08/814757
Inventors:
David T. Green - Westport CT
Henry Bolanos - East Norwalk CT
Salvatore Castro - Seymour CT
Henry Sienkiewicz - Stamford CT
Stephan A. DeFonzo - Bridgeport CT
Douglas J. Cuny - Bethel CT
Wayne P. Young - Brewster NY
Assignee:
United States Surgical Corporation - Norwalk CT
International Classification:
A61M 5178
US Classification:
60416704, 60416707, 137849, 137855
Abstract:
A valve assembly is provided for permitting the introduction of a surgical instrument into a patients body while providing a substantial seal about the instrument. The valve assembly includes a sealing gasket assembly providing a fluid tight seal before instrument insertion, and is configured and dimensioned for accommodating an instrument and providing a substantial fluid tight seal after insertion of an instrument. The valve assembly may further include a deformable sealing member having a substantially central aperture for accommodating the instrument. The sealing member provides a substantial seal about the instrument when the instrument is passed therethrough impeding the egress of fluids and gasses through the valve assembly.

Tissue Biopsy Apparatus

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US Patent:
6623437, Sep 23, 2003
Filed:
Aug 28, 2001
Appl. No.:
09/941014
Inventors:
Peter W. J. Hinchliffe - Downington PA
Stephan A. DeFonzo - Wayne PA
Assignee:
Rex Medical, L.P. - Conshohocken PA
International Classification:
A61B 1000
US Classification:
600564, 600567, 606 39, 606 45
Abstract:
A surgical apparatus for removing a portion of tissue comprising an elongated body having a distal edge and a cutting member fixedly mounted to the elongated body and extending distally of the distal edge of the elongated body member. The cutting member has an exposed conductive distal edge forming an electrosurgical cutting surface for applying electrical energy to tissue. The cutting member resects a tubular region of tissue as the apparatus is advanced through tissue and the resected tissue extends through an opening in the cutting ring for containment within the elongated body.

Surgical Biopsy Device

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US Patent:
6626903, Sep 30, 2003
Filed:
Apr 27, 2001
Appl. No.:
09/844729
Inventors:
Peter W. J. Hinchliffe - Downington PA
Stephan A. Defonzo - Wayne PA
Assignee:
Rex Medical, L.P.
International Classification:
A61B 1818
US Classification:
606 45, 600564
Abstract:
A surgical biopsy apparatus for cutting tissue comprising a housing having a longitudinal axis, first and second members movable from a retracted position to an extended position with respect to the housing, a third member slidably positioned and extendable with respect to the first member, a fourth member slidably positioned and extendable with respect to the second member, and an electrocautery cutting wire slidable with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue.

Apparatus For Delivering Ablation Fluid To Treat Lesions

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US Patent:
6905480, Jun 14, 2005
Filed:
Feb 22, 2002
Appl. No.:
10/081695
Inventors:
Stephan A. DeFonzo - Wayne PA, US
Alim S. Alli - North Haven CT, US
Peter W. J. Hinchliffe - Downington PA, US
Assignee:
Rex Medical, L.P. - Conshohocken PA
International Classification:
A61M005/178
A61M005/32
A61B017/34
US Classification:
60416401, 60416407, 604272, 606186
Abstract:
A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a plurality of slots formed in a sidewall proximal of the distal tip, a plurality of fluid delivery members positioned in the elongated member and having a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion, and an actuator actuable to a first position to move the plurality of fluid delivery members from a retracted position within the elongated member to a first deployed position extending radially with respect to the elongated member and actuable to a second position to move the plurality of fluid delivery members from the first position to a second deployed position extending further radially from the elongated member.

Surgical Biopsy Device

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US Patent:
6960172, Nov 1, 2005
Filed:
Aug 15, 2003
Appl. No.:
10/642009
Inventors:
Peter W. J. Hinchliffe - Downington PA, US
Stephan A. Defonzo - Wayne PA, US
Assignee:
Rex Medical, L.P. - Conshohocken PA
International Classification:
A61B010/00
US Classification:
600564, 606 45
Abstract:
A surgical biopsy apparatus for cutting tissue comprising a housing having a longitudinal axis, first and second members movable from a retracted position to an extended position with respect to the housing, a third member slidably positioned and extendable with respect to the first member, a fourth member slidably positioned and extendable with respect to the second member, and an electrocautery cutting wire slidable with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue.

Valve Assembly For Introducing Instruments Into Body Cavities

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US Patent:
6981966, Jan 3, 2006
Filed:
May 23, 2003
Appl. No.:
10/444378
Inventors:
David T. Green - Westport CT, US
Henry Bolanos - East Norwalk CT, US
Salvatore Castro - Seymour CT, US
Henry Sienkiewicz - Stamford CT, US
Stephan A. DeFonzo - Bridgeport CT, US
Douglas J. Cuny - Bethel CT, US
Wayne P. Young - Brewster NY, US
Assignee:
United States Surgical - Norwalk CT
International Classification:
A61M 5/178
US Classification:
60416702, 60416701
Abstract:
A valve assembly is provided for permitting the introduction of a surgical instrument into a patient's body while providing a substantial seal about the instrument. The valve assembly includes a sealing gasket assembly providing a fluid tight seal before instrument insertion, and is configured and dimensioned for accommodating an instrument and providing a substantial fluid tight seal after insertion of an instrument. The valve assembly may further include a deformable sealing member having a substantially central aperture for accommodating the instrument. The sealing member provides a substantial seal about the instrument when the instrument is passed therethrough impeding the egress of fluids and gasses through the valve assembly.

Apparatus For Delivering Ablation Fluid To Treat Lesions

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US Patent:
6989004, Jan 24, 2006
Filed:
May 14, 2002
Appl. No.:
10/145863
Inventors:
Peter W. J. Hinchliffe - Dowington PA, US
Stephan A. Defonzo - Wayne PA, US
Assignee:
Rex Medical, L.P. - Conshohocken PA
International Classification:
A61M 5/178
US Classification:
60416401, 604158, 604187
Abstract:
A surgical apparatus for delivering fluid to treat a lesion comprising an elongated member having a distal tip and a first and second set of openings formed in a sidewall proximal of the distal tip. The second set of openings is positioned proximally of the first set of openings. First and second set of fluid delivery members are movably positioned in the elongated for delivering fluid to the lesion. An actuator moves the fluid delivery members from a retracted position within the elongated members to a first deployed position extending radially with respect to the elongated member and moves the fluid delivery members from the first deployed position to a second deployed position extending further radially from the elongated member. The fluid delivery members are retained in the first and second deployed positions by a retention member.

Apparatus For Delivering Ablation Fluid To Treat Lesions

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US Patent:
7087040, Aug 8, 2006
Filed:
Feb 12, 2002
Appl. No.:
10/074468
Inventors:
Stephan A. DeFonzo - Wayne PA, US
Assignee:
Rex Medical, L.P. - Conshohocken PA
International Classification:
A61M 5/178
A61M 5/32
US Classification:
604158, 60416412, 604159, 60416401, 604272
Abstract:
A surgical apparatus for delivering fluid to treat a lesion comprising a housing, an elongated member extending from the housing, and a plurality of tines positioned in the housing. Each of the tines has a lumen and at least one opening communicating with the lumen for delivering fluid to the lesion. An actuator is operatively associated with the tines and actuable to a first position to move the plurality of tines from a retracted position substantially within the elongated member to a first deployed position extending from the elongated member and actuable to a second position to move the plurality of tines from the first position to a second deployed position.
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Stephan A Defonzo from Chesterbrook, PA, age ~63 Get Report