Abstract: An ultrasonic sensor for detecting the presence of air or liquid uses flex circuits for connecting the ceramic element to the driver circuitry. The sensor provides improved transmission of ultrasonic signals between the ceramic element and the adjacent material, providing greater flexibility in using the sensor.
Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
Type:
Grant
Filed:
April 5, 2004
Date of Patent:
July 12, 2011
Assignee:
Zevex, Inc.
Inventors:
David Cise, David J. McNally, Kent F. Beck
Abstract: An optical pressure monitoring system includes a tube from an infusion set and an optical signal sensor disposed to detect changes in the diameter of the tube and thereby determine pressure changes within the tube. By selecting the position of the tube relative to the optical signal emitter and optical signal receiver, the optical signal sensor can both detect pressure changes and provide an integrity check for both the functioning of the optical signal sensor and the placement of the tube. By modifying the tube to exaggerate changes in tube diameter responsive to pressure changes, the sensitivity of the optical signal sensor can be increased.
Type:
Grant
Filed:
October 13, 2006
Date of Patent:
April 12, 2011
Assignee:
Zevex, Inc.
Inventors:
James A. Malmstrom, Kent F. Beck, Scott D. Miles
Abstract: A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing. The detector may be mounted on existing equipment or may be used to monitor a tubing at any position along the tubing, and may operate in a stand alone mode or in combination with existing equipment.
Type:
Grant
Filed:
June 18, 2009
Date of Patent:
October 26, 2010
Assignee:
Zevex, Inc.
Inventors:
Timothy A. Riley, Mark D. Stringham, David H. Blaine, Frank A. Crandall, Philip N. Eggers
Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. The occluder may also be configured to allow flow when the infusion set adjacent the occluder is moved sideways relative to the occluder or maintained at an angle relative to the occluder. When a pair of occluders are used in sequence, an in-line pump may be formed.
Type:
Grant
Filed:
September 14, 2005
Date of Patent:
October 19, 2010
Assignee:
Zevex, Inc.
Inventors:
David Cise, David J. McNally, Kent F. Beck, Blake Allen, John Dickey
Abstract: A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing. The detector may be mounted on existing equipment or may be used to monitor a tubing at any position along the tubing, and may operate in a stand alone mode or in combination with existing equipment.
Type:
Grant
Filed:
October 22, 2007
Date of Patent:
October 5, 2010
Assignee:
Zevex, Inc.
Inventors:
Timothy A. Riley, Mark D. Stringham, David H. Blaine, Frank A. Crandall, Philip N. Eggers
Abstract: A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing. The detector may be mounted on existing equipment or may be used to monitor a tubing at any position along the tubing, and may operate in a stand alone mode or in combination with existing equipment.
Type:
Grant
Filed:
October 22, 2007
Date of Patent:
June 1, 2010
Assignee:
Zevex, Inc.
Inventors:
Timothy A. Riley, Mark D. Stringham, David H. Blaine, Frank A. Crandall, Philip N. Eggers
Abstract: An enterostomy device for providing fluids and nutrients through a stoma formed through the abdominal wall of a patient is described. The enterostomy device, which may be configured as either a gastrostomy device or a jejunostomy device, comprises a low-profile retaining member which is configured to be unobtrusively positioned within the stomach or the intestine, and which is configured to provide sufficient surface area for contacting the stomach or intestine to prevent unintentional removal or release of the enterostomy device from the patient. The enterostomy device is also structured with a low-profile port hub for facilitating the inflation of the retaining member and feeding and venting through the stoma.
Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
Type:
Grant
Filed:
May 23, 2005
Date of Patent:
May 6, 2008
Assignee:
Zevex, Inc.
Inventors:
David Cise, David J. McNally, Kent F. Beck
Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
Type:
Grant
Filed:
December 11, 2002
Date of Patent:
December 19, 2006
Assignee:
Zevex, Inc.
Inventors:
David Cise, David J. McNally, Kent F. Beck
Abstract: An optical pressure monitoring system includes a tube from an infusion set and an optical signal sensor disposed to detect changes in the diameter of the tube and thereby determine pressure changes within the tube. By selecting the position of the tube relative to the optical signal emitter and optical signal receiver, the optical signal sensor can both detect pressure changes and provide an integrity check for both the functioning of the optical signal sensor and the placement of the tube. By modifying the tube to exaggerate changes in tube diameter responsive to pressure changes, the sensitivity of the optical signal sensor can be increased.
Type:
Grant
Filed:
April 11, 2005
Date of Patent:
October 17, 2006
Assignee:
Zevex, Inc.
Inventors:
James A. Malmstrom, Kent F. Beck, Scott D. Miles
Abstract: A feeding set adaptor and related system for delivering solutions utilize a feeding set adaptor which engages a pump engaging portion of an infusion set and the feeding set adaptor structure to provide monitoring portions for detecting pressures within the infusion set, a sample cell for determining the presence of air within an infusion set, and an anti-freeflow device for selectively preventing freeflow through the infusion set. The feeding set adaptor is configured for mounting on an infusion pump which moves solution through the infusion set for delivery to a patient.
Type:
Grant
Filed:
August 23, 2004
Date of Patent:
July 4, 2006
Assignee:
Zevex, Inc.
Inventors:
Kent F. Beck, James A. Malmstrom, Scott D. Miles
Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
Type:
Grant
Filed:
April 16, 2001
Date of Patent:
December 27, 2005
Assignee:
Zevex, Inc.
Inventors:
Scott D. Miles, Kent F. Beck, James A. Malmstrom
Abstract: An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.
Type:
Grant
Filed:
April 4, 2003
Date of Patent:
August 2, 2005
Assignee:
Zevex, Inc.
Inventors:
Scott Miles, Kent F. Beck, James Malmstrom
Abstract: An optical pressure monitoring system includes a tube from an infusion set and an optical signal sensor disposed to detect changes in the diameter of the tube and thereby determine pressure changes within the tube. By selecting the position of the tube relative to the optical signal emitter and optical signal receiver, the optical signal sensor can both detect pressure changes and provide an integrity check for both the functioning of the optical signal sensor and the placement of the tube. By modifying the tube to exaggerate changes in tube diameter responsive to pressure changes, the sensitivity of the optical signal sensor can be increased.
Type:
Grant
Filed:
November 8, 2002
Date of Patent:
June 21, 2005
Assignee:
Zevex, Inc.
Inventors:
James A. Malmstrom, Kent F. Beck, Scott D. Miles