Patents by Inventor Lutz Freitag

Lutz Freitag has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130103139
    Abstract: The present invention relates to grid-like or net-like endoprosthesis having a continuous, respectively ongoing and interstices-spanning coating with a thread-tangle, wherein this continuous, respectively ongoing and interstices-spanning coating covers the struts as well as the interstices between the single endoprosthesis struts.
    Type: Application
    Filed: May 27, 2011
    Publication date: April 25, 2013
    Applicant: HEMOTEQ AG
    Inventors: Erika Hoffmann, Michael Hoffmann, Roland Horres, Lutz Freitag
  • Patent number: 8418694
    Abstract: Spontaneous respiration is detected by sensors. An additional amount of oxygen is administered to the lungs via a jet gas current at the end of an inhalation procedure. Breathing volume, absorption of oxygen during inhalation, and clearance of carbon dioxide during exhalation are improved. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent to avoid a collapse of the respiration paths. An apparatus including an oxygen pump can be connected to an oxygen source and includes a tracheal prosthesis that can be connected via a catheter. The respiration detections sensors are connected to a control unit for activating the oxygen pump. The tracheal prosthesis includes a tubular support body with a connection for the catheter, and the sensors are associated with the support body. The tracheal prosthesis and jet catheter are dimensioned so the patient can freely breathe and speak without restriction.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 16, 2013
    Assignee: Breathe Technologies, Inc.
    Inventors: Lutz Freitag, Gregory Kapust
  • Patent number: 8381729
    Abstract: Modes, methods, systems and devices are described for providing assisted ventilation to a patient, including wearable ventilation systems with integral gas supplies, special gas supply features, ventilation catheters and access devices, and breath sensing techniques.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: February 26, 2013
    Assignee: Breathe Technologies, Inc.
    Inventors: Lutz Freitag, Anthony Wondka, Gregory Kapust, Robert Bryan, Michael Khenansho, Anthony Gerber
  • Publication number: 20120145147
    Abstract: The invention relates to a tracheostoma spacer with a tubular support framework. The support framework can be expand from an initial state to a supporting state of increased diameter and has a fixing element at the ends. The tracheostoma spacer is intended for use as a spacer in a tracheostoma (an opening in the trachea). The invention further relates to a device for inserting a tracheostoma spacer into a tracheostoma with a cutting instrument in the form of a trocar, the tracheostoma spacer being able to be positioned on the shaft of said trocar. A cover sleeve is also provided which can be moved on the shaft over a tracheostoma spacer positioned there.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Applicant: Breathe Technologies, Inc.
    Inventors: Lutz Freitag, Anthony Wondka
  • Publication number: 20110295141
    Abstract: A method for assessing lung function in a patient is disclosed. The method comprises isolating a lung compartment. Thereafter, in one embodiment, an inhaled gas of known composition is introduced into the lung and compared to the composition of the exhaled gas. Alternatively, accumulated CO2 content is measured within the isolated lung compartment over time, and compared to a baseline CO2 content. Alternatively, a change in pressure of an isolated lung compartment may be monitored. Alternatively, the magnitude of the range of CO2 values in an isolated lung compartment can be compared to a predetermined threshold. Any of the results obtained via these alternative embodiments may be used to determine lung function.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 1, 2011
    Applicant: Pulmonx Corporation
    Inventors: Srikanth Radhakrishnan, Ryan Olivera, Niyazi Beyhan, Surag Mantri, Lutz Freitag
  • Publication number: 20110270116
    Abstract: Minimally invasive methods, systems and devices are provided for assessing collateral ventilation in the lungs. In particular, collateral ventilation of a target compartment within a lung of a patient is assessed by advancement of a catheter through the tracheobronchial tree to a feeding airway of the target compartment. The feeding airway is occluded by the catheter and the opening and closing of a one-way valve coupled with the catheter is observed. If the valve ceases opening and closing over time, this may indicate that significant collateral ventilation into the target compartment is absent. If the valve continues to open and close over time, significant collateral ventilation into the compartment may be present. Based on the collateral ventilation assessment, a treatment plan may be generated.
    Type: Application
    Filed: October 27, 2010
    Publication date: November 3, 2011
    Applicant: Pulmonx Corporation
    Inventors: Lutz Freitag, Nikolai Aljuri
  • Publication number: 20110259327
    Abstract: Improved methods and devices are described for sensing the respiration pattern of a patient and controlling ventilator functions, particularly for use in an open ventilation system. An apparatus for sensing respiration and synchronizing a ventilator to the respiration of a patient is described. The apparatus may include a plurality of thermal breath sensors. At least one of the plurality of thermal breath sensors may be a heated thermal breath sensor.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 27, 2011
    Inventors: Anthony Wondka, Robert F. Bryan, Lutz Freitag, Mark McCall, Stephen Rossi, Coung Q. Tran
  • Publication number: 20110251509
    Abstract: Devices systems and methods are disclosed for preventing or inhibiting secretions from entering the lumen of a functional assessment catheter for the lungs, or removing collected secretions. The catheter comprises an expandable element, a cover, or an internal component configured to prevent or inhibit secretion flow into the lumen. The catheter alternatively or additionally comprises a distal end configured to facilitate air flow, absorb secretions or repel secretions away from the catheter tip. The catheter alternatively or additionally comprises an internal element such as a coilable wire, or an obturator configured to prevent secretions from being drawn into the lumen, or to actively remove the secretions. The catheter alternatively or additionally comprises an element to dry, aerate or aspirate the lung passageways.
    Type: Application
    Filed: February 9, 2011
    Publication date: October 13, 2011
    Applicant: Pulmonx Corporation
    Inventors: Niyazi Beyhan, Surag Mantri, Hoang Nguyen, Son Gia, Gregory Alan Pulido, Dushyant Jivanlal Shah, George Surjan, Gregory Michael Ruhf, Lutz Freitag
  • Publication number: 20110209705
    Abstract: A method and apparatus is described for supporting the respiration of a patient. The spontaneous respiration of a patient can be detected by sensors and during inhalation an additional amount of oxygen can be administered to the lungs via a jet gas current. If required, during exhalation a countercurrent can be administered to avoid collapse of the respiration paths. This therapy can be realized by an apparatus including a transtracheal catheter, an oxygen pump connected to an oxygen source, spontaneous respiration sensor(s) connected to a control unit for activating the oxygen pump and, if needed, a tracheal prosthesis. The tracheal prosthesis may include a connection for the catheter and the breath sensor(s). The tracheal prosthesis, if used, and the catheter can be dimensioned so the patient can freely breathe, cough, swallow and speak without restriction, and the system can be wearable to promote mobility.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 1, 2011
    Applicant: Breathe Technologies, Inc.
    Inventor: Lutz Freitag
  • Publication number: 20100269834
    Abstract: Spontaneous respiration is detected by sensors. An additional amount of oxygen is administered to the lungs via a jet gas current at the end of an inhalation procedure. Breathing volume, absorption of oxygen during inhalation, and clearance of carbon dioxide during exhalation are improved. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent to avoid a collapse of the respiration paths. An apparatus including an oxygen pump can be connected to an oxygen source and includes a tracheal prosthesis that can be connected via a catheter. The respiration detections sensors are connected to a control unit for activating the oxygen pump. The tracheal prosthesis includes a tubular support body with a connection for the catheter, and the sensors are associated with the support body. The tracheal prosthesis and jet catheter are dimensioned so the patient can freely breathe and speak without restriction.
    Type: Application
    Filed: April 30, 2010
    Publication date: October 28, 2010
    Applicant: Breathe Technologies, Inc.
    Inventors: Lutz Freitag, Gregory Kapust
  • Publication number: 20100252043
    Abstract: The invention relates to a method and an arrangement for respiratory support for a patient and an airway prosthesis. The spontaneous breathing of a patient is recorded with sensors and an additional amount of oxygen administered by means of a jet gas flow at the end of a lung inhalation process. Oxygen uptake on inhalation is thus improved. Where necessary the exhalation process of the patient can be retarded by a counter-current to prevent a collapse of the airways. The above manner of proceeding is achieved by means of an arrangement, comprising an oxygen pump connected to an oxygen source and an airway prosthesis, which may be connected by means of a catheter. The spontaneous breathing of the patient is recorded by means of sensors, connected to a controller, for activating the oxygen pump. The airway prosthesis has a tubular nozzle body with a connector for the catheter, whereby two of the sensors are provided on the nozzle body.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 7, 2010
    Applicant: Breathe Technologies, Inc.
    Inventor: Lutz Freitag
  • Patent number: 7785360
    Abstract: An instrument for implanting an expandable cylindrical vascular prosthesis includes an outer tube and an inner tube which can be displaced relative to one another. The inner tube is longitudinally slotted on the distal end, at least in an area thereof, and ensheathes the stent with this area which includes the longitudinal slot. In order to implant the stent, the outer tube is retracted. The stent then expands with continuous retracting movement of the outer tube and the inner tube is pressed open along the longitudinal slot. Implantation is terminated, when the outer tube is retracted along the entire length of the stent. The implantation is reversible by pushing the outer tube forward, as long as the stent has not yet fully exited the instrument. In this way, the inner tube is constricted together with the stent, and compressed to an initial position.
    Type: Grant
    Filed: May 18, 2002
    Date of Patent: August 31, 2010
    Assignee: Merit Medical Systems, Inc.
    Inventor: Lutz Freitag
  • Publication number: 20100043786
    Abstract: The invention relates to a tracheostoma spacer with a tubular support framework. The support framework can be expand from an initial state to a supporting state of increased diameter and has a fixing element at the ends. The tracheostoma spacer is intended for use as a spacer in a tracheostoma (an opening in the trachea). The invention further relates to a device for inserting a tracheostoma spacer into a tracheostoma with a cutting instrument in the form of a trocar, the tracheostoma spacer being able to be positioned on the shaft of said trocar. A cover sleeve is also provided which can be moved on the shaft over a tracheostoma spacer positioned there.
    Type: Application
    Filed: November 5, 2009
    Publication date: February 25, 2010
    Applicant: Breathe Technologies
    Inventors: Lutz Freitag, Anthony Wondka
  • Patent number: 7631642
    Abstract: The invention relates to a tracheostoma spacer with a tubular support framework. The support framework can be expand from an initial state to a supporting state of increased diameter and has a fixing element at the ends. The tracheostoma spacer is intended for use as a spacer in a tracheostoma (an opening in the trachea). The invention further relates to a device for inserting a tracheostoma spacer into a tracheostoma with a cutting instrument in the form of a trocar, the tracheostoma spacer being able to be positioned on the shaft of said trocar. A cover sleeve is also provided which can be moved on the shaft over a tracheostoma spacer positioned there.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: December 15, 2009
    Assignee: Breathe Technologies, Inc.
    Inventors: Lutz Freitag, Anthony Wondka
  • Publication number: 20090255533
    Abstract: Spontaneous respiration is detected by sensors. An additional amount of oxygen is administered to the lungs via a jet gas current at the end of an inhalation procedure. Breathing volume, absorption of oxygen during inhalation, and clearance of carbon dioxide during exhalation are improved. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent to avoid a collapse of the respiration paths. An apparatus including an oxygen pump can be connected to an oxygen source and includes a tracheal prosthesis that can be connected via a catheter. The respiration detections sensors are connected to a control unit for activating the oxygen pump. The tracheal prosthesis includes a tubular support body with a connection for the catheter, and the sensors are associated with the support body. The tracheal prosthesis and jet catheter are dimensioned so the patient can freely breathe and speak without restriction.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 15, 2009
    Applicant: Breathe Technologies
    Inventors: Lutz Freitag, Gregory Kapust, Anthony Wondka
  • Publication number: 20090151726
    Abstract: A method and apparatus is described for supporting the respiration of a patient. The spontaneous respiration of a patient can be detected by sensors and during inhalation an additional amount of oxygen can be administered to the lungs via a jet gas current. If required, during exhalation a countercurrent can be administered to avoid collapse of the respiration paths. This therapy can be realized by an apparatus including a transtracheal catheter, an oxygen pump connected to an oxygen source, spontaneous respiration sensor(s) connected to a control unit for activating the oxygen pump and, if needed, a tracheal prosthesis. The tracheal prosthesis may include a connection for the catheter and the breath sensor(s). The tracheal prosthesis, if used, and the catheter can be dimensioned so the patient can freely breathe, cough, swallow and speak without restriction, and the system can be wearable to promote mobility.
    Type: Application
    Filed: November 14, 2008
    Publication date: June 18, 2009
    Applicant: Breathe Technologies, Inc.
    Inventor: Lutz Freitag
  • Patent number: 7547321
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, it is an objective of a preferred embodiment of the present invention to provide a stent that is easily installed, yet removable. Moreover, the stent does not cause material infections and has the capacity to reduce infection. Therefore, a principal objective of a preferred embodiment in accordance with the present invention is to provide a prosthesis that is suitable for both permanent and temporary use while being easy to insert, reposition and remove. This prosthesis is also suitable for targeted delivery of antimicrobial and chemotherapeutic agents.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: June 16, 2009
    Assignee: Alveolus Inc.
    Inventors: Gerard A. Silvestri, Lutz Freitag
  • Patent number: 7533670
    Abstract: Spontaneous respiration is detected by sensors. An additional amount of oxygen is administered to the lungs via a jet gas current at the end of an inhalation procedure. Breathing volume, absorption of oxygen during inhalation, and clearance of carbon dioxide during exhalation are improved. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent to avoid a collapse of the respiration paths. An apparatus including an oxygen pump can be connected to an oxygen source and includes a tracheal prosthesis that can be connected via a catheter. The respiration detections sensors are connected to a control unit for activating the oxygen pump. The tracheal prosthesis includes a tubular support body with a connection for the catheter, and the sensors are associated with the support body. The tracheal prosthesis and jet catheter are dimensioned so the patient can freely breathe and speak without restriction.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: May 19, 2009
    Assignee: Breathe Technologies, Inc.
    Inventors: Lutz Freitag, Gregory Kapust, Anthony Wondka
  • Publication number: 20090107494
    Abstract: Spontaneous respiration is detected by sensors. An additional amount of oxygen is administered to the lungs via a jet gas current at the end of an inhalation procedure. Breathing volume, absorption of oxygen during inhalation, and clearance of carbon dioxide during exhalation are improved. If required, the exhalation procedure of the patient can be arrested or slowed by a countercurrent to avoid a collapse of the respiration paths. An apparatus including an oxygen pump can be connected to an oxygen source and includes a tracheal prosthesis that can be connected via a catheter. The respiration detections sensors are connected to a control unit for activating the oxygen pump. The tracheal prosthesis includes a tubular support body with a connection for the catheter, and the sensors are associated with the support body. The tracheal prosthesis and jet catheter are dimensioned so the patient can freely breathe and speak without restriction.
    Type: Application
    Filed: September 20, 2006
    Publication date: April 30, 2009
    Inventors: Lutz Freitag, Gregory Kapust, Anthony Wondka
  • Patent number: 7487778
    Abstract: A method and apparatus is described for supporting the respiration of a patient. The spontaneous respiration of a patient can be detected by sensors and during inhalation an additional amount of oxygen can be administered to the lungs via a jet gas current. If required, during exhalation a countercurrent can be administered to avoid collapse of the respiration paths. This therapy can be realized by an apparatus including a transtracheal catheter, an oxygen pump connected to an oxygen source, spontaneous respiration sensor(s) connected to a control unit for activating the oxygen pump and, if needed, a tracheal prosthesis. The tracheal prosthesis may include a connection for the catheter and the breath sensor(s). The tracheal prosthesis, if used, and the catheter can be dimensioned so the patient can freely breathe, cough, swallow and speak without restriction, and the system can be wearable to promote mobility.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: February 10, 2009
    Assignee: Breathe Technologies, Inc.
    Inventor: Lutz Freitag