1
Robert C Owens, Theodore A Johnson: Guide wire apparatus with location sensing member. SIMS Deltec, Merchant Gould Smith Edell Welter & Schmidt, February 7, 1995: US05386828 (192 worldwide citation)

The invention is directed to a guide wire apparatus and a method for detecting the location of a guide wire within the body of a patient. The apparatus includes a guide wire with an internally-housed sensing member. The guide wire assembly is structured to provide the response, maneuverability and t ...


2
Qingsheng Cai, William L Beling, Jerald Glantz, Theodore A Johnson: Methods for using catheter connectors and portals, and methods of assembly. SIMS Deltec, Merchant Gould Smith Edell Welter & Schmidt P A, April 28, 1998: US05743873 (180 worldwide citation)

A portal assembly includes a port with at least one resealable septum, and a tube extending from the port with the tube being sized to be received inside a catheter, an angled surface surrounding the tube wherein the angled surface diverges away from the tube in a direction away from the port, and s ...


3
Qingsheng Cai, William L Beling, Jerald Glantz, Theodore A Johnson: Portal assembly and catheter connector. SIMS Deltec, Merchant Gould Smith Edell Welter & Schmidt P A, October 8, 1996: US05562618 (166 worldwide citation)

A portal assembly includes a port with at least one resealable septum, and a tube extending from the port with the tube being sized to be received inside a catheter, an angled surface surrounding the tube wherein the angled surface diverges away from the tube in a direction away from the port, and s ...


4
Jerald Glantz, Mark D Anderson, Theodore A Johnson, William L Beling, Cai Qingsheng: Hybrid portal and method. Sims Deltec, Merchant Gould Smith Edell Welter & Schmidt P A, September 24, 1996: US05558641 (152 worldwide citation)

The present invention provides an subcutaneously implantable access device including a metallic reservoir and a two piece plastic jacket. The metallic reservoir includes a sealed septum, and a chamber. The chamber is accessible through the septum. A two piece plastic jacket surrounds the metallic re ...


5
Theodore A Johnson, Harry A Puryear: Systems and methods for determining the location of an implanted device including a magnet. SIMS Deltec, Merchant & Gould P C, August 31, 1999: US05944023 (151 worldwide citation)

A passive system for accurately determining the location of a device positioned or implanted within a patient's body is disclosed. The system includes a detectable mechanism mounted at the tip of the device which is configured to generate a self-induced magnetic field, and a detector for detecting t ...


6
Jerald Glantz, Mark D Anderson, Theodore A Johnson, William L Beling, Cai Qingsheng: Hybrid portal and method. SIMS Deltec, Merchant Gould Smith Edell Welter & Schmidt, February 7, 1995: US05387192 (151 worldwide citation)

The present invention provides an subcutaneously implantable access device including a metallic reservoir and a two piece plastic jacket. The metallic reservoir includes a sealed septum, and a chamber. The chamber is accessible through the septum. A two piece plastic jacket surrounds the metallic re ...


7
Qingsheng Cai, William L Beling, Jerald Glantz, Theodore A Johnson: Catheter connector. SIMS Deltec, Merchant Gould Smith Edell Welter & Schmidt P A, May 27, 1997: US05632729 (144 worldwide citation)

A portal assembly includes a port with at least one resealable septum, and a tube extending from the port with the tube being sized to be received inside a catheter, an angled surface surrounding the tube wherein the angled surface diverges away from the tube in a direction away from the port, and s ...


8
Theodore A Johnson, Harry A Puryear: Access portal and method. SIMS Deltec, Merchant & Gould P C, November 23, 1999: US05989216 (126 worldwide citation)

The present invention provides a portal for subcutaneous implantation, where the portal includes a housing having a first end, a second end, an inner wall, and a lumen between the first and second open ends. In one preferred embodiment, the first open end of the housing is sealed by a elastomeric se ...


9
Qingsheng Cai, William L Beling, Jerald Glantz, Theodore A Johnson: Portal assembly. SIMS Deltec, Merchant Gould Smith Edell Welter & Schmidt P A, March 25, 1997: US05613945 (126 worldwide citation)

A portal assembly includes a port with at least one resealable septum, and a tube extending from the port with the tube being sized to be received inside a catheter, an angled surface surrounding the tube wherein the angled surface diverges away from the tube in a direction away from the port, and s ...


10
Theodore A Johnson, Paul J Thompson: Bridged coil catheter support structure. Intratherapeutics, Merchant & Gould P C, February 8, 2000: US06022343 (100 worldwide citation)

A catheter includes a segment having a longitudinal axis. The segment has a helical coil extending coaxially with the longitudinal axis. The coil has a plurality of turns along a length of the axis. Adjacent turns have opposing surfaces joined by bridging members tying at least selected ones of the ...