JAMES GILBERT CHANDLER, M.D.
Radiology at Mountain Laurel Pl, Boulder, CO
License number
Colorado A18813
Category
Radiology
Type
Vascular Surgery
Address
Address
3721 Mountain Laurel Pl, Boulder, CO 80304
Phone
(303) 545-6709
Personal information
See more information about JAMES GILBERT CHANDLER at radaris.comName
Address
Phone
37 Aspen Meadow Dr, Breckenridge, CO 80424
Professional information
Biopolar Instrument For Vessel Sealing
US Patent:
6334861, Jan 1, 2002
Filed:
Aug 17, 1999
Appl. No.:
09/376779
Inventors:
James Gilbert Chandler - Boulder CO
Randel Alven Frazier - Louisville CO
Randel Alven Frazier - Louisville CO
Assignee:
Sherwood Services AG - Schaffhausen
International Classification:
A61B 1818
US Classification:
606 50, 606 45, 606 48, 606 51
Abstract:
A bipolar instrument for use by a surgeon to seal tissue with bipolar electrosurgery. The bipolar instrument is a modified hemostat including two elongate members. Each elongate member has a proximal end to be held by a surgeon and a distal end. The elongate members substantially defining a plane and are electrically conductive for transmitting high frequency electrosurgery. A pivot transverse to the plane connects the two elongate members for scissors-like motion between the distal ends. A first tissue contacting pole integral with one elongate member and positioned at its distal end is electrically conductive for transmitting high frequency electrosurgery. Latching elements extend from each elongate member for cooperative interengagement with opposed ramps and abutting stops for sliding conjugation to hold the first and second tissue contacting poles with a predetermined force. An insulated over shoe for placement on the other elongate member at its distal end attaches with a slip fit to prevent longitudinal or transverse movement. That distal end has a reduced cross section for receiving the insulated over shoe in an opening extending thereinto in tunnel fashion.
Method And Apparatus For Applying Energy To Biological Tissue Including The Use Of Tumescent Tissue Compression
US Patent:
6752803, Jun 22, 2004
Filed:
Jul 6, 2001
Appl. No.:
09/899885
Inventors:
Mitchel P. Goldman - La Jolla CA
Robert A. Weiss - Baltimore MD
Arthur W. Zikorus - San Jose CA
James G. Chandler - Boulder CO
Robert A. Weiss - Baltimore MD
Arthur W. Zikorus - San Jose CA
James G. Chandler - Boulder CO
Assignee:
VNUS Medical Technologies, Inc. - San Jose CA
International Classification:
A61B 1804
US Classification:
606 32, 128898, 606 41
Abstract:
An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring.
Apparatus For Applying Energy To Biological Tissue Including The Use Of Tumescent Tissue Compression
US Patent:
6969388, Nov 29, 2005
Filed:
Apr 23, 2001
Appl. No.:
09/841664
Inventors:
Mitchel P. Goldman - La Jolla CA, US
Robert A. Weiss - Baltimore MD, US
James G. Chandler - Boulder CO, US
Robert A. Weiss - Baltimore MD, US
James G. Chandler - Boulder CO, US
Assignee:
VNUS Medical Technologies, Inc. - San Jose CA
International Classification:
A61B018/18
US Classification:
606 41, 606 32, 607101
Abstract:
An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring.
Method And Apparatus For Positioning A Catheter Relative To An Anatomical Junction
US Patent:
2011016, Jun 30, 2011
Filed:
Sep 3, 2010
Appl. No.:
12/875951
Inventors:
Arthur W. Zikorus - San Jose CA, US
Ralph G. DePalma - Washington DC, US
Christopher S. Jones - Sunnyvale CA, US
Brian E. Farley - Los Altos CA, US
James G. Chandler - Boulder CO, US
Ralph G. DePalma - Washington DC, US
Christopher S. Jones - Sunnyvale CA, US
Brian E. Farley - Los Altos CA, US
James G. Chandler - Boulder CO, US
Assignee:
TYCO HEALTHCARE GROUP, L.P. - Mansfield CA
International Classification:
A61N 5/06
US Classification:
607 88
Abstract:
An electrode catheter is introduced into a vein or other hollow anatomical structure, and is positioned at a treatment: site within the structure. The end of the catheter is positioned near a junction formed in the structure. This junction can be the sapheno-femoral junction. The position of the catheter near the junction is determined based on a signal from a device associated with the catheter within the structure. A fiber optic filament which emits light is used with the catheter or a guide wire over which the catheter is advanced. The light is visible externally from the patient. The light dims and may no longer externally visible at the sapheno-femoral junction where the catheter moves past the deep fascia and toward the deep venous system. The position of the catheter can be determined based on this external observation. The position of the catheter can also be determined based on measured parameters such as temperature or flow rate within the structure, and the measured changes in one or more of these parameters as the catheter nears the junction. The hollow anatomical structure can be compressed for this procedure. The position of the catheter can also be determined mechanically by including a hook-shaped tip on the catheter or guide wire which would physically engage the junction.
Method And Apparatus For Applying Energy To Biological Tissue Including The Use Of Tumescent Tissue Compression
US Patent:
2008024, Oct 9, 2008
Filed:
Jun 16, 2008
Appl. No.:
12/140219
Inventors:
Mitchel P. Goldman - La Jolla CA, US
Robert A. Weiss - Baltimore MD, US
Arthur W. Zikorus - San Jose CA, US
James G. Chandler - Boulder CO, US
Robert A. Weiss - Baltimore MD, US
Arthur W. Zikorus - San Jose CA, US
James G. Chandler - Boulder CO, US
Assignee:
VNUS Medical Technologies, Inc. - San Jose CA
International Classification:
A61B 18/04, A61M 29/02
US Classification:
606 27, 606194
Abstract:
An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring. Also, temperature sensors at the treatment site are averaged to determine the site temperature.
Method And Apparatus For Applying Energy To Biological Tissue Including The Use Of Tumescent Tissue Compression
US Patent:
7396355, Jul 8, 2008
Filed:
Jun 21, 2004
Appl. No.:
10/872646
Inventors:
Mitchel P. Goldman - La Jolla CA, US
Robert A. Weiss - Baltimore MD, US
Arthur W. Zikorus - San Jose CA, US
James G. Chandler - Boulder CO, US
Robert A. Weiss - Baltimore MD, US
Arthur W. Zikorus - San Jose CA, US
James G. Chandler - Boulder CO, US
Assignee:
VNUS Medical Technologies, Inc. - Sunnyvale CA
International Classification:
A61B 18/18
US Classification:
606 41, 128898, 607105
Abstract:
An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring.
Method For Applying Energy To Biological Tissue Including The Use Of Tumescent Tissue Compression
US Patent:
6258084, Jul 10, 2001
Filed:
Mar 10, 1999
Appl. No.:
9/267127
Inventors:
Mitchel P. Goldman - La Jolla CA
Robert A. Weiss - Baltimore MD
Arthur W. Zikorus - San Jose CA
James G. Chandler - Boulder CO
Robert A. Weiss - Baltimore MD
Arthur W. Zikorus - San Jose CA
James G. Chandler - Boulder CO
Assignee:
Vnus Medical Technologies, Inc. - Sunnyvale CA
International Classification:
A61B 1804
US Classification:
606 32
Abstract:
An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring.
Method And Apparatus For Applying Energy To Biological Tissue Including The Use Of Tumescent Tissue Compression
US Patent:
2008003, Feb 14, 2008
Filed:
Aug 20, 2007
Appl. No.:
11/841913
Inventors:
Mitchel Goldman - La Jolla CA, US
Robert Weiss - Baltimore MD, US
Arthur Zikorus - San Jose CA, US
James Chandler - Boulder CO, US
Robert Weiss - Baltimore MD, US
Arthur Zikorus - San Jose CA, US
James Chandler - Boulder CO, US
International Classification:
A61B 18/14
US Classification:
604114000
Abstract:
An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring. Also, temperature sensors at the treatment site are averaged to determine the site temperature.
Method And Apparatus For Positioning A Catheter Relative To An Anatomical Junction
US Patent:
7789876, Sep 7, 2010
Filed:
Apr 3, 2001
Appl. No.:
09/825741
Inventors:
Arthur W. Zikorus - San Jose CA, US
Ralph G. DePalma - Walnut Creek CA, US
Christopher S. Jones - Sunnyvale CA, US
Brian E. Farley - Los Altos CA, US
James G. Chandler - Boulder CO, US
Ralph G. DePalma - Walnut Creek CA, US
Christopher S. Jones - Sunnyvale CA, US
Brian E. Farley - Los Altos CA, US
James G. Chandler - Boulder CO, US
Assignee:
Tyco Healthcare Group, LP - Mansfield MA
International Classification:
A61B 18/18
US Classification:
606 41, 606 27, 606 28, 606 29, 606 30, 606 31, 606 32, 606 42, 600407, 600473, 600476, 600478, 604 22
Abstract:
An electrode catheter is introduced into a vein or other hollow anatomical structure, and is positioned at a treatment site within the structure. The end of the catheter is positioned near a junction formed in the structure. This junction can be the sapheno-femoral junction. The position of the catheter near the junction is determined based on a signal from a device associated with the catheter within the structure. A fiber optic filament which emits light is used with the catheter or a guide wire over which the catheter is advanced. The light is visible externally from the patient. The light dims and may no longer externally visible at the sapheno-femoral junction where the catheter moves past the deep fascia and toward the deep venous system. The position of the catheter can be determined based on this external observation. The position of the catheter can also be determined based on measured parameters such as temperature or flow rate within the structure, and the measured changes in one or more of these parameters as the catheter nears the junction.