James David Devries

US Patent:

7905241, Mar 15, 2011

Filed:

Dec 12, 2008

Appl. No.:

12/333748

Inventors:

James David DeVries - Gilbert AZ, US
Gerald B. Schmidt - New Braunfels TX, US
Geoffrey Shaffer - Canyon Lake TX, US
Aubrey Zwicke - Seguin TX, US
Mark Foytik - New Braunfels TX, US

Assignee:

EchoStar Technologies L.L.C. - Englewood CO

International Classification:

E04H 15/02

US Classification:

135 90, 135 96, 135900

Abstract:

Systems and methods of protecting service personnel and electronics in an antenna hub from inclement weather are disclosed. An exemplary embodiment of an antenna hub shelter has an attachment member secured to a hub, wherein the attachment member is located above an access door of the hub and a top portion defined by a first edge and a second opposing edge. The first edge is attachable to the attachment member. The second edge is secured to a handrail of an access platform of the antenna.

US Patent:

53953304, Mar 7, 1995

Filed:

Sep 4, 1992

Appl. No.:

7/940632

Inventors:

Stuart J. Marcadis - Portage IN
James H. DeVries - Grand Rapids MI

Assignee:

DLP, Inc. - Grand Rapids MI

International Classification:

A61M 2900

US Classification:

604 96

Abstract:

A perfusion catheter for use in open heart surgery having an inflatable cuff adjacent the distal end in communication with the lumen of the catheter to self-inflate when perfusion liquid is introduced into the lumen. A plug in the lumen within the cuff causes lumen flow to by-pass from the proximal end of the cuff to the distal end of the cuff through transverse parts in the lumen. A flow restriction at the distal end of the lumen causes pressure build-up to inflate the cuff. A pressure monitoring lumen splices to the catheter tube to parallel the tube down to the distal end where it is in communication with the end of the catheter and also with the distal end of the cuff to register cuff pressure. An introducer shaft is provided to be inserted into the lumen to abut the plug to stiffen the catheter, thus facilitating insertion, and a stiffener spine at the cuff area of the catheter also provides rigidity to compensate for the weakening of the lumen resulting from the transverse ports. A cross-port between the pressure monitoring lumen and the main lumen distally of the cuff will register lumen pressure if both the main lumen and the monitoring lumen become occluded at the distal end of the catheter.

US Patent:

52902315, Mar 1, 1994

Filed:

Sep 4, 1992

Appl. No.:

7/940633

Inventors:

Stuart J. Marcadis - Portage IN
James H. DeVries - Grand Rapids MI

Assignee:

DLP, Inc. - Grand Rapids MI

International Classification:

A61M 2900

US Classification:

604 96

Abstract:

A perfusion catheter for use in open heart surgery having an inflatable cuff adjacent the distal end in communication with the lumen of the catheter to self-inflate when perfusion liquid is introduced into the lumen. A plug in the lumen within the cuff causes lumen flow to by-pass from the proximal end of the cuff to the distal end of the cuff through transverse parts in the lumen. A flow restriction at the distal end of the lumen causes pressure build-up to inflate the cuff. A pressure monitoring lumen splices to the catheter tube to parallel the tube down to the distal end where it is in communication with the end of the catheter and also with the distal end of the cuff to register cuff pressure. An introducer shaft is provided to be inserted into the lumen to abut the plug to stiffen the catheter, thus facilitating insertion, and a stiffener spine at the cuff area of the catheter also provides rigidity to compensate for the weakening of the lumen resulting from the transverse ports. A cross-port between the pressure monitoring lumen and the main lumen distally of the cuff will register lumen pressure if both the main lumen and the monitoring lumen become occluded at the distal end of the catheter.

US Patent:

57207267, Feb 24, 1998

Filed:

Sep 20, 1996

Appl. No.:

8/718225

Inventors:

Stuart J. Marcadis - Portage IN
James H. Devries - Grand Rapids MI

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 2900

US Classification:

604 96

Abstract:

A catheter for retrograde perfusion of the heart through the coronary sinus, which has an infusion lumen for introducing perfusion liquid into the heart, a retention means such as an inflatable balloon, and can have retention enhancements such as spikes, felt or a hydrophilic coating, on the surface of the retention means to keep it firmly in place.

US Patent:

54877300, Jan 30, 1996

Filed:

May 27, 1994

Appl. No.:

8/250863

Inventors:

Stuart J. Marcadis - Portage IN
James H. Devries - Grand Rapids MI

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 2900

US Classification:

604 96

Abstract:

A catheter for retrograde perfusion of the heart through the coronary sinus, which has an infusion lumen for introducing perfusion liquid into the heart, a retention means such as an inflatable balloon, and can have retention enhancements such as spikes, felt or a hydrophilic coating, on the surface of the retention means to keep it firmly in place.