Abstract: Systems, devices and methods for draining and analyzing bodily fluids are disclosed in which a drainage assembly is configured to prevent negative pressure build-up. The drainage assembly generally includes a catheter which may include a drainage lumen, a reservoir, a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen, and a controller. The venting mechanism may further include a valve which is configured to maintain a closed position, as well as a vent in fluid communication with the valve, where the venting mechanism is configured to inhibit wetting of the vent from fluid within the drainage lumen.
Type:
Grant
Filed:
September 27, 2016
Date of Patent:
August 27, 2019
Assignee:
Potrero Medical, Inc.
Inventors:
Daniel R. Burnett, Rich Keenan, Dimitri Sokolov, Stephen Boyd, Martin Williams, Kondapavulur Venkateswara-Rao, Michelle Arney
Abstract: Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids are described which are capable of sensing physiologic data based on sensors incorporated into a catheter adapted to reside in any of a urinary tract, gastrointestinal tract, rectal location, pre-peritoneal, pleural space or other body cavity. The devices aid emptying of the bladder, measure urine output and various urine parameters such as oxygen tension, urine conductance and urine specific gravity, monitor renal function, analyze urine parameters, including urine content, including the presence of infection, and track and/or control fluid administration.
Type:
Application
Filed:
March 1, 2017
Publication date:
June 28, 2018
Applicant:
Potrero Medical, Inc.
Inventors:
Daniel R. BURNETT, Evan S. LUXON, Rich KEENAN, Marcie HAMILTON, Saheel SUTARIA, Mark ZIEGLER, Alex YEE, Griffeth TULLY, Christina SKIELLER, Stephen BOYD
Abstract: Methods and apparatus for measuring pressure in a patient are provided which may include any number of features. One feature is a pressure measurement system comprising a pressure source, a compliant bladder, a catheter in communication with the pressure source, pressure sensors, and a controller configured to determine a pressure within the compliant bladder. The pressure measurement system can inflate the compliant bladder with gas or air to determine a pressure within a patient. In one embodiment, the pressure measurement system measures pressure within a peritoneal cavity.
Type:
Grant
Filed:
February 23, 2017
Date of Patent:
April 3, 2018
Assignee:
Potrero Medical, Inc.
Inventors:
Daniel R. Burnett, Byron Reynolds, Brian M. Neil, Gregory W. Hall, Paul B. Guerra
Abstract: Foley type catheter embodiments for sensing physiologic data from a urinary tract of a patient are disclosed. The system includes the catheter and a data processing apparatus and methods for sensing physiologic data from the urinary tract. Embodiments may also include a pressure sensor having a pressure interface at a distal end of the catheter, a pressure transducer at a proximal end, and a fluid column disposed between the pressure interface and transducer. When the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it into a chronological pressure profile, which can be processed by the data processing apparatus into one or more distinct physiologic pressure profiles, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
Type:
Grant
Filed:
March 7, 2012
Date of Patent:
May 30, 2017
Assignee:
Potrero Medical, Inc.
Inventors:
Daniel R. Burnett, Greg Lee, Richard W. O'Connor, Brett Mensh
Abstract: Foley type catheter embodiments for sensing physiologic data from a urinary tract of a patient are disclosed. The system includes the catheter and a data processing apparatus and methods for sensing physiologic data from the urinary tract. Embodiments may also include a pressure sensor having a pressure interface at a distal end of the catheter, a pressure transducer at a proximal, and a fluid column disposed between the pressure interface and transducer. When the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it into a chronological pressure profile, which can be processed by the data processing apparatus into one or more distinct physiologic pressure profiles, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
Type:
Grant
Filed:
March 7, 2012
Date of Patent:
May 23, 2017
Assignee:
Potrero Medical, Inc.
Inventors:
Daniel R. Burnett, Greg Lee, Richard W. O'Connor, Brett Mensh
Abstract: Systems, devices and methods for draining and analyzing bodily fluids are disclosed in which a drainage assembly is configured to prevent negative pressure build-up. The drainage assembly generally includes a catheter which may include a drainage lumen, a reservoir, a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen, and a controller.
Type:
Application
Filed:
September 27, 2016
Publication date:
May 18, 2017
Applicant:
Potrero Medical, Inc.
Inventors:
Daniel R. BURNETT, Rich KEENAN, Dimitri SOKOLOV, Stephen BOYD, Martin WILLIAMS, Kondapavulur VENKATESWARA-RAO, Michelle ARNEY
Abstract: Methods and apparatus for measuring pressure in a patient are provided which may include any number of features. One feature is a pressure measurement system comprising a pressure source, a compliant bladder, a catheter in communication with the pressure source, pressure sensors, and a controller configured to determine a pressure within the compliant bladder. The pressure measurement system can inflate the compliant bladder with gas or air to determine a pressure within a patient. In one embodiment, the pressure measurement system measures pressure within a peritoneal cavity.
Type:
Grant
Filed:
July 11, 2011
Date of Patent:
April 18, 2017
Assignee:
Potrero Medical, Inc.
Inventors:
Daniel Rogers Burnett, Byron Reynolds, Brian M. Neil, Gregory W. Hall, Paul B. Guerra