Patents by Inventor Dean A. Schaefer

Dean A. Schaefer 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: 20190240391
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: August 2, 2017
    Publication date: August 8, 2019
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20180206845
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Inventors: Rodney BRENNEMAN, Dean A. SCHAEFER, J. Christopher FLAHERTY
  • Patent number: 9955970
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: May 1, 2018
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 9782533
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: October 10, 2017
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20160228122
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 11, 2016
    Inventors: Rodney BRENNEMAN, Dean A. SCHAEFER, J. Christopher FLAHERTY
  • Patent number: 9179916
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: November 10, 2015
    Assignee: ROX MEDICAL INC.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20140188028
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 3, 2014
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20140121685
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 1, 2014
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 8641724
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: February 4, 2014
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 8382697
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: February 26, 2013
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 7985214
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 26, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson
  • Publication number: 20080171944
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 17, 2008
    Applicant: ROX Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20080119879
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 22, 2008
    Applicant: ROX Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 7025767
    Abstract: The present invention relates to an apparatus and method for utilizing energy, such as radio frequency (RF) energy, to treat defined areas of tissue and more particularly to ablate tumors with RF energy through the use of a needle having a spreading array of individually traversing conductive tines which are independently positioned and activated.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: April 11, 2006
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Dean A. Schaefer, David Paulk, John Sherry
  • Patent number: 6942654
    Abstract: An intravascular catheter having a shaft, at least a portion of which includes a braid reinforcement with an axial wire or fiber disposed between the helical members that form the braid. The axial member prevents the elongation of the shaft of the catheter thereby maintaining one-to-one correspondence in axial manipulation of the catheter, even when the shaft is placed in tension. By positioning the axial member between the helical members, the axial member does not create a protrusion and does not become fixed to any adjacent polymer layer. Thus, the axial member limits axial strain of the catheter, without creating the undesirable effects of friction caused by an axial protrusion and without creating the undesirable effects of limited flexure caused by an adjacent polymer layer becoming fixed to the axial member.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: September 13, 2005
    Assignee: SciMed Life Systems, Inc.
    Inventors: Dean A. Schaefer, David Paulk, Steven M. Anderson
  • Patent number: 6866660
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: March 15, 2005
    Assignee: SciMed Life Systems, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson
  • Publication number: 20040162543
    Abstract: An intravascular catheter having a shaft, at least a portion of which includes a braid reinforcement with a plurality of axial members disposed between the helical members that form the braid. The axial members provide a number of advantages including: maintaining one-to-one correspondence in axial manipulation; maintaining uniform flexibility in several planes of flexure; reducing the likelihood of causing a curling effect; increasing the strength of connections between shaft segments; uniformly increasing stiffness of the catheter; and increasing the burst strength of the catheter. By positioning the axial members between the helical members, the axial members do not create a protrusion and do not become fixed to any adjacent polymer layer. Thus, the benefits of axial members are retained, without creating the undesirable effects of friction caused by an axial protrusion and without creating the undesirable effects of limited flexure caused by an adjacent polymer layer becoming fixed to the axial member.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 19, 2004
    Applicant: SciMed Life Systems, Inc.
    Inventors: Dean A. Schaefer, David Paulk, Steven M. Anderson
  • Publication number: 20040133196
    Abstract: The present invention relates to an apparatus and method for utilizing energy, such as radio frequency (RF) energy, to treat defined areas of tissue and more particularly to ablate tumors with RF energy through the use of a needle having a spreading array of individually traversing conductive tines which are independently positioned and activated.
    Type: Application
    Filed: September 16, 2003
    Publication date: July 8, 2004
    Applicant: Scimed Life Systems, Inc.
    Inventors: Dean A. Schaefer, David Paulk, John Sherry
  • Patent number: 6709429
    Abstract: An intravascular catheter having a shaft, at least a portion of which includes a braid reinforcement with a plurality of axial members disposed between the helical members that form the braid. The axial members provide a number of advantages including: maintaining one-to-one correspondence in axial manipulation; maintaining uniform flexibility in several planes of flexure; reducing the likelihood of causing a curling effect; increasing the strength of connections between shaft segments; uniformly increasing stiffness of the catheter; and increasing the burst strength of the catheter. By positioning the axial members between the helical members, the axial members do not create a protrusion and do not become fixed to any adjacent polymer layer. Thus, the benefits of axial members are retained, without creating the undesirable effects of friction caused by an axial protrusion and without creating the undesirable effects of limited flexure caused by an adjacent polymer layer becoming fixed to the axial member.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: March 23, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Dean A. Schaefer, David Paulk, Steven M. Anderson
  • Patent number: 6638277
    Abstract: The present invention relates to an apparatus and method for utilizing energy, such as radio frequency (RF) energy, to treat defined areas of tissue and more particularly to ablate tumors with RF energy through the use of a needle having a spreading array of individually traversing conductive tines which are independently positioned and activated.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: October 28, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Dean A. Schaefer, David Paulk, John Sherry