Patents Assigned to Circulation, Inc.
  • Method for a central venous line catheter having a temperature control system
    Patent number: 9259349
    Abstract: A kit of parts comprises a system and instructions for use for controlling patient temperature which uses a central venous line catheter having a heat exchange element. The central venous line catheter is provided with one or more lumens for providing access to the central blood supply of the patient, and with additional lumens for communicating heat exchange fluid to the heat exchange element. Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set transports the heat exchange fluid between the central venous line and the temperature control unit, with a pump serving to circulate the fluid in a closed fluid circuit in the system.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: February 16, 2016
    Assignee: Zoll Circulation, Inc.
    Inventors: Blair D. Walker, Scott M. Evans, David P. Balding, Peter Barker
  • Resuscitation device with expert system
    Patent number: 9241867
    Abstract: A resuscitation device for automatic compression of victim's chest using a compression belt which exerts force evenly over the entire thoracic cavity. The belt is constricted and relaxed through a motorized spool assembly which repeatedly tightens the belt and relaxes the belt to provide repeated and rapid chest compression. An assembly includes various resuscitation devices including chest compression devices, defibrillation devices, and airway management devices, along with communications devices and senses with initiate communications with emergency medical personnel automatically upon use of the device.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 26, 2016
    Assignee: ZOLL Circulation, Inc.
    Inventors: Steven R. Bystrom, Darren R. Sherman, Kenneth H. Mollenauer
  • Intravascular heat exchange catheter with multiple spaced apart discrete coolant loops
    Patent number: 9241827
    Abstract: A catheter has a series of hollow loops arranged along a tube for carrying working fluid from a heat exchange system to exchange heat with a patient in whom the catheter is advanced. The loops when inflated are transverse to the catheter axis and parallel to each other, and circumscribe a hollow passageway through which blood can flow. Blood also flows around the outer perimeters of the loops.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: January 26, 2016
    Assignee: Zoll Circulation, Inc.
    Inventors: Alex L. Lim, Masouneh Mafi, Venkata Vishnu Gurukula
  • Multiple lumen heat exchange catheters
    Patent number: 9237964
    Abstract: Catheter devices and methods for intravascular heating and/or cooling of human or veterinary patients. The catheter devices generally comprise catheters having inflow and outflow lumens and at least one curvilinear balloon connected to the inflow and outflow lumens such that heat exchange fluid may be circulated through the balloon(s). The catheter is inserted into the vasculature and heated or cooled fluid is circulated through the balloon(s) to heat or cool blood flowing in heat-exchange proximity to the balloon(s), thereby effecting heating or cooling of all or a portion of the patient's body.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: January 19, 2016
    Assignee: ZOLL Circulation, Inc.
    Inventors: Wade A. Keller, Timothy R. Machold
  • Piston-based chest compression device with belt drive
    Patent number: 9211229
    Abstract: A hybrid chest compression device includes a backboard with a motor and a drive spool housed within the backboard. There is also a piston support frame secured to the backboard forming a patient channel between the piston support frame and the backboard. There is a belt operably secured to the drive spool and enclosed within the backboard and the piston support frame and a piston operably housed within the piston support frame wherein motion of the belt actuates motion of the piston. Actuation of the motor results in cyclic rotation and counter-rotation of the motor and corresponding winding and unwinding of the belt on the drive spool to effectuate cyclic extension and retraction of the piston against the patient's chest to perform mechanical cardiopulmonary resuscitation.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: December 15, 2015
    Assignee: ZOLL Circulation, Inc.
    Inventor: Uday Kiran V. Illindala
  • System and method for tracking and archiving battery performance data
    Patent number: 9197079
    Abstract: An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes a memory for storing data related to the operation of the battery, and the battery management system is also configured to communicate the data related to the operation of the battery to other processors for analysis.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 24, 2015
    Assignee: Zoll Circulation, Inc.
    Inventors: Sean Yip, David Mack
  • Intra-aortic balloon counterpulsation with concurrent hypothermia
    Patent number: 9180236
    Abstract: Devices, systems and methods for treating disorders characterized by low cardiac output. The devices, systems and methods use intra-aortic balloon counterpulsation in combination with hypothermia of all or a portion of a human or veterinary patient's body to improve coronary perfusion and cardiac output. To effect the hypothermia, a heat exchange catheter may be positioned in the a patient's vasculature separately from the intra-aortic balloon counterpulsation catheter. Alternatively, a combination Intra-aortic balloon counterpulsation/heat exchange catheter may be utilized. Such combination catheter comprises a) a catheter sized for insertion into the aorta, b) a counterpulsation balloon and c) a heat exchanger. A drive/control system receives temperature and electrocardiograph signals and drives the inflation/deflation of the counterpulsation balloon as well as the heating/cooling of the heat exchanger.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: November 10, 2015
    Assignee: ZOLL Circulation, Inc.
    Inventors: Michael W. Dae, Timothy R. Machold
  • Method and apparatus for spinal cooling
    Patent number: 9180042
    Abstract: A method for exchanging heat with a patient's spinal column incident to spinal surgery or to relieve a patient for a hypoxia condition of the spine. A closed loop heat exchange catheter is percutaneously advanced into the retroperitoneal space of the patient or into the vasculature, and then heat exchange fluid is circulated through the catheter to cool the spinal column.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: November 10, 2015
    Assignee: Zoll Circulation, Inc.
    Inventor: Kenneth A. Collins
  • Apparatus and method of gastric cooling using balloon catheter
    Patent number: 9138344
    Abstract: A balloon catheter is used in a closed-loop heat exchange system for manipulating the temperature of a patient. The balloon catheter is positioned in the stomach of the patient, and then expanded with a heat exchange fluid delivered through a lumen formed in the shaft of the catheter. The balloon catheter comes into contact with the wall of the stomach, and the stomach substantially conforms around the expanded balloon catheter. The heat exchange fluid is allowed to flow continuously into and out of the balloon catheter. Heat is exchanged between the balloon catheter and the stomach so as to controllably alter the temperature of at least a portion of the patient. Anti-shivering mechanisms and automatic control based on temperature feedback from the patient may be used in connection with the heat exchange system.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: September 22, 2015
    Assignee: Zoll Circulation, Inc.
    Inventor: Paul M. Stull
  • System for determining depth of chest compressions during CPR
    Patent number: 9125793
    Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: September 8, 2015
    Assignee: ZOLL Circulation, Inc.
    Inventors: James Adam Palazzolo, Darren R. Sherman
  • PATIENT HEAT EXCHANGE SYSTEM WITH TWO AND ONLY TWO FLUID LOOPS
    Publication number: 20150230975
    Abstract: A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad includes a working fluid that circulates between the catheter or pad and a fluid cassette, and a refrigerant system that flows against the outer sides of cold plates between which the cassette is disposed.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 20, 2015
    Applicant: Zoll Circulation, Inc.
    Inventors: JEREMY THOMAS DABROWIAK, Craig Wendell Pendry, Christoph Matthias Pistor
  • FLUID CASSETTE WITH POLYMERIC MEMBRANES AND INTEGRAL INLET AND OUTLET TUBES FOR PATIENT HEAT EXCHANGE SYSTEM
    Publication number: 20150230974
    Abstract: A working fluid cassette for an intravascular heat exchange catheter includes a frame holding two closely spaced, square polymeric membranes along the sides of which are disposed inlet and outlet tubes. Working fluid from the catheter is directed from the inlet tube between the membranes to the outlet tube. The cassette is closely received between two refrigerant cold plates to exchange heat with the working fluid, which is circulated back to the catheter.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 20, 2015
    Applicant: Zoll Circulation, Inc.
    Inventors: Christoph Matthias Pistor, Jeremy Thomas Dabrowiak, Craig Wendell Pendry, Christo Pamichev
  • PATIENT HEAT EXCHANGE SYSTEM WITH TRANSPARENT WALL FOR VIEWING CIRCULATING REFRIGERANT
    Publication number: 20150223974
    Abstract: A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad includes a working fluid that circulates between the catheter or pad and a fluid cassette, and a refrigerant system that flows against the outer sides of cold plates between which the cassette is disposed. An outer wall of the system is transparent so that a person can view the refrigerant as it circulates, ensuring proper operation.
    Type: Application
    Filed: May 13, 2014
    Publication date: August 13, 2015
    Applicant: Zoll Circulation, Inc.
    Inventors: JEREMY THOMAS DABROWIAK, Eric Peterson
  • Battery management system for control of lithium power cells
    Patent number: 9099877
    Abstract: An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes primary and secondary protection circuits for monitoring the charging and discharging of the battery. Individual battery cells forming the battery pack are connected by a main bus to a connector for connection to a battery charger or a device to be powered, and the main bus may be interrupted by a switch controlled by the battery management system to prevent damage to the battery during charging or discharging of the battery.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: August 4, 2015
    Assignee: Zoll Circulation, Inc.
    Inventors: Orlando Banos, David Deam, Richard Smith
  • Compression belt system for use with chest compression devices
    Patent number: 9078800
    Abstract: A compression belt cartridge for use with chest compression devices. The compression belt cartridge has a double-oar shaped belt and a cover plate through which the belt is threaded. The cover plate is provided with hooks and snap latches that fit into a belt drive platform. The cover plate is sized and dimensioned to fit within only selected platforms. The belt attaches to the means for tightening the belt via a spline attached to the belt. The means for tightening a belt then repetitively tightens the belt, thereby accomplishing chest compressions.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: July 14, 2015
    Assignee: ZOLL Circulation, Inc.
    Inventors: Paul Q. Escudero, Gregory W. Hall
  • Methods and apparatus for treating or deterring injuries to or disorders of the brain or spinal cord of a subject
    Patent number: 9056004
    Abstract: Methods and apparatus for treating or deterring injuries to or disorders of the brain or spinal cord of a subject. A heat exchange catheter device is inserted into the subject's body and used to cause heating or cooling the subject's cerebrospinal fluid. In some embodiments, the heat exchanger may be positioned within the subject's vasculature so as to heat or cool the flowing blood, thereby resulting in heating or cooling of the cerebrobpinal fluid.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: June 16, 2015
    Assignee: ZOLL Circulation, Inc.
    Inventors: Robert Ginsburg, Timothy R. Machold, Michael T. Dineen
  • Chest Compression Device
    Publication number: 20150094624
    Abstract: A chest compression device includes a piston to apply compression to the sternum and incorporates leaf springs simultaneously driven by the piston to apply lateral compression to the thorax during chest compressions. A motor in the chest compression device provides motive power to cyclically extend and contract the piston to provide therapeutic chest compressions. One end of each leaf spring is operably connected to the piston and the other end of each leaf spring is secured to the backboard/base or to a support leg of the chest compression device such that during extension of the piston, each leaf spring is compressed against the device base or leg which causes the springs to flex and provide lateral compression of the patient's thorax in addition to the sternal compression of the piston.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: ZOLL Circulation, Inc.
    Inventor: Uday Kiran V. Illindala
  • Methods for preparing a heat exchange catheter system and for heating and/or cooling a subject's body
    Patent number: 8968378
    Abstract: Closed loop heat exchange catheter systems and methods for preparing and using such systems wherein a reservoir or fluid bag is connected to the catheter system and used for at least priming of the system with a heat exchange fluid.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 3, 2015
    Assignee: ZOLL Circulation, Inc.
    Inventors: Robert Ginsburg, Timothy R. Machold, Michael T. Dineen, Arlene S. Ginsburg
  • Piston-Based Chest Compression Device with Belt Drive
    Publication number: 20150057580
    Abstract: A hybrid chest compression device includes a backboard with a motor and a drive spool housed within the backboard. There is also a piston support frame secured to the backboard forming a patient channel between the piston support frame and the backboard. There is a belt operably secured to the drive spool and enclosed within the backboard and the piston support frame and a piston operably housed within the piston support frame wherein motion of the belt actuates motion of the piston. Actuation of the motor results in cyclic rotation and counter-rotation of the motor and corresponding winding and unwinding of the belt on the drive spool to effectuate cyclic extension and retraction of the piston against the patient's chest to perform mechanical cardiopulmonary resuscitation.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Applicant: ZOLL Circulation, Inc.
    Inventor: Uday Kiran V. Illindala
  • Resuscitation Device with Expert System
    Publication number: 20150051522
    Abstract: A resuscitation device for automatic compression of victim's chest using a compression belt which exerts force evenly over the entire thoracic cavity. The belt is constricted and relaxed through a motorized spool assembly which repeatedly tightens the belt and relaxes the belt to provide repeated and rapid chest compression. An assembly includes various resuscitation devices including chest compression devices, defibrillation devices, and airway management devices, along with communications devices and senses with initiate communications with emergency medical personnel automatically upon use of the device.
    Type: Application
    Filed: October 21, 2014
    Publication date: February 19, 2015
    Applicant: ZOLL CIRCULATION, INC.
    Inventors: Steven R. Bystrom, Darren R. Sherman, Kenneth H. Mollenauer