Patents by Inventor William J. Worthen

William J. Worthen 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: 20030060761
    Abstract: A kit of parts comprises a system and instructions for use for controlling patient temperature which uses a heat exchange catheter having a heat exchange element. The heat exchange 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: Application
    Filed: June 28, 2002
    Publication date: March 27, 2003
    Inventors: Scott M. Evans, Anthony C. Aliberto, William J. Worthen
  • Publication number: 20030055472
    Abstract: A method for supporting medical practitioners in managing patient temperature includes obtaining regulatory approval to use a heat exchange catheter having a circulating working fluid in a neuro intensive care unit (NICU) to manage patient temperature. Moreover, regulatory approval is obtained to use the catheter outside the NICU for patient temperature management. The catheter can be used outside the NICU to induce therapeutic hypothermia to treat cardiac arrest, stroke, and acute myocardial infarction. Also, the catheter can be used to treat hypothermia after coronary artery bypass graft (CABG) surgery.
    Type: Application
    Filed: September 19, 2001
    Publication date: March 20, 2003
    Inventor: William J. Worthen
  • Patent number: 6516224
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient's body temperature using one or more cooling catheters positioned in the central venous system of the patient and/or particularly cooling the patient's brain temperature using a catheter advanced into the aortic arch or into the carotid artery whereby a bolus of cold saline solution is introduced into the blood supplied to the brain to lower the brain temperature quickly, and further cooling or maintaining the brain temperature at a desired level by pumping coolant in a closed circuit formation between the catheter and the coolant source to remove heat from the blood supplied to the patient's brain.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: February 4, 2003
    Assignee: Alsius Corporation
    Inventors: Jack W. Lasersohn, William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Publication number: 20020193853
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient using one or more cooling catheter positioned in the central venous system of the patient.
    Type: Application
    Filed: June 27, 2002
    Publication date: December 19, 2002
    Applicant: Alsius Corp.
    Inventors: William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Publication number: 20020173834
    Abstract: A system for exchanging heat with the body of a patient for cooling or warming the patient provides for automatic temperature control in accordance with the monitored temperature of the patient. The system comprises a temperature control module and temperature probes for making body core temperature measurements. The body core temperature measurements are used to control the temperature of fluid circulating within the fluid circuit.
    Type: Application
    Filed: July 12, 2002
    Publication date: November 21, 2002
    Inventors: Wayne A. Noda, William J. Worthen
  • Publication number: 20020161331
    Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.
    Type: Application
    Filed: October 19, 2001
    Publication date: October 31, 2002
    Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
  • Publication number: 20020156421
    Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.
    Type: Application
    Filed: October 19, 2001
    Publication date: October 24, 2002
    Applicant: Alsius Corporation
    Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
  • Patent number: 6460544
    Abstract: A kit for establishing and maintaining hypothermia in a patient for neurotherapeutic purposes includes a high cooling capacity catheter that is advanced into the patient's central venous system to quickly cool the patient to, e.g., 32° C. or so. Once hypothermia has been established, the high capacity catheter is removed and replaced with a lower cooling capacity catheter which maintains a desired reduced temperature. The lower capacity catheter advantageously can be configured as a central venous catheter for permitting the catheter to be used for multiple functions. Alternatively, the high cooling capacity catheter can be used to attenuate a fever and lower the patient's body temperature to normal, with the lower capacity catheter being used to maintain normal body temperature.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: October 8, 2002
    Assignee: Alsius Corporation
    Inventor: William J. Worthen
  • Patent number: 6458150
    Abstract: A kit for establishing and maintaining hypothermia in a patient for neurotherapeutic purposes includes a high cooling capacity catheter that is advanced into the patient's central venous system to quickly cool the patient to, e.g., 32° C. or so. Once hypothermia has been established, the high capacity catheter is removed and replaced with a lower cooling capacity catheter which maintains a desired reduced temperature. The lower capacity catheter advantageously can be configured as a central venous catheter for permitting the catheter to be used for multiple functions. Alternatively, the high cooling capacity catheter can be used to attenuate a fever and lower the patient's body temperature to normal, with the lower capacity catheter being used to maintain normal body temperature.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: October 1, 2002
    Assignee: Alsius Corporation
    Inventors: Scott M. Evans, William J. Worthen
  • Publication number: 20020138122
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient using one or more cooling catheter positioned in the central venous system of the patient.
    Type: Application
    Filed: May 20, 2002
    Publication date: September 26, 2002
    Applicant: Alsius Corp.
    Inventors: William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Patent number: 6454793
    Abstract: A kit for establishing and maintaining hypothermia in a patient for neurotherapeutic purposes includes a high cooling capacity catheter that is advanced into the patient's central venous system to quickly cool the patient to, e.g., 32° C. or so. Once hypothermia has been established, the high capacity catheter is removed and replaced with a lower cooling capacity catheter which maintains a desired reduced temperature. The lower capacity catheter advantageously can be configured as a central venous catheter for permitting the catheter to be used for multiple functions. Alternatively, the high cooling capacity catheter can be used to attenuate a fever and lower the patient's body temperature to normal, with the lower capacity catheter being used to maintain normal body temperature.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: September 24, 2002
    Assignee: Alsius Corporation
    Inventors: Scott M. Evans, William J. Worthen
  • Patent number: 6454792
    Abstract: A system for exchanging heat with the body of a patient for cooling or warming the patient provides for automatic temperature control in accordance with the monitored temperature of the patient. The system comprises a temperature control module and temperature probes for making body core temperature measurements. The body core temperature measurements are used to control the temperature of fluid circulating within the fluid circuit.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: September 24, 2002
    Assignee: Alsius Corporation
    Inventors: Wayne A. Noda, William J. Worthen
  • Patent number: 6432124
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient using one or more cooling catheter positioned in the central venous system of the patient.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: August 13, 2002
    Assignee: Alsius Corporation
    Inventors: William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Publication number: 20020095201
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient using one or more cooling catheter positioned in the central venous system of the patient.
    Type: Application
    Filed: March 15, 2002
    Publication date: July 18, 2002
    Inventors: William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Patent number: 6419643
    Abstract: An introducer sheath for a central venous catheter includes a sheath body and a temperature sensor mounted distally on the body. Either the catheter or sheath has a heat exchange region through which coolant is circulated to effect heat exchange with the body, with the coolant temperature being controlled in response to signals from the temperature sensor. Arterial dialysis heat exchange catheters and jugular bulb heat exchange catheters are also disclosed.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 16, 2002
    Assignee: Alsius Corporation
    Inventors: Lynn M. Shimada, William J. Worthen, Scott M. Evans, Xia Luo, Robert Pecor, Blair D. Walker
  • Patent number: 6405080
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient's body temperature using one or more cooling catheters positioned in the central venous system of the patient and/or particularly cooling the patient's brain temperature using a catheter advanced into the aortic arch or into the carotid artery whereby a bolus of cold saline solution is introduced into the blood supplied to the brain to lower the brain temperature quickly, and further cooling or maintaining the brain temperature at a desired level by pumping coolant in a closed circuit formation between the catheter and the coolant source to remove heat from the blood supplied to the patient's brain.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Alsius Corporation
    Inventors: Jack W. Lasersohn, William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Publication number: 20020066458
    Abstract: A central venous catheter includes coolant supply and return lumens which communicate coolant to and from first and second heat exchange membranes arranged along the distal segment of the catheter. The coolant in the heat exchange membranes removes heat from the patient. Additional lumens are provided for conventional central venous catheter uses.
    Type: Application
    Filed: January 23, 2002
    Publication date: June 6, 2002
    Inventors: Anthony C. Aliberto, Scott M. Evans, William J. Worthen
  • Patent number: 6393320
    Abstract: A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient's body temperature using one or more cooling catheters positioned in the central venous system of the patient and/or particularly cooling the patient's brain temperature using a catheter advanced into the aortic arch or into the carotid artery whereby a bolus of cold saline solution is introduced into the blood supplied to the brain to lower the brain temperature quickly, and further cooling or maintaining the brain temperature at a desired level by pumping coolant in a closed circuit formation between the catheter and the coolant source to remove heat from the blood supplied to the patient's brain.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: May 21, 2002
    Assignee: Alsius Corporation
    Inventors: Jack W. Lasersohn, William J. Worthen, Scott M. Evans, Suzanne C. Winter, David Balding
  • Publication number: 20020049410
    Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.
    Type: Application
    Filed: September 4, 2001
    Publication date: April 25, 2002
    Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin
  • Publication number: 20020049409
    Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.
    Type: Application
    Filed: September 4, 2001
    Publication date: April 25, 2002
    Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worthen, Yves Pierre Gobin