Patents by Inventor Daniel A. Walters

Daniel A. Walters 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: 20250325799
    Abstract: An intravascular device for pumping blood includes a catheter comprising a membrane chamber located between a proximal end and a distal end of the catheter. An inflatable membrane is disposed within the membrane chamber. The intravascular device includes a first one-way valve and optionally a second one-way valve configured to permit blood flow in a first direction. The first one-way valve may be positioned proximal to the membrane chamber, and the second one-way valve may be positioned distal to the membrane chamber. Methods related to intravascular devices and their respective use are provided.
    Type: Application
    Filed: June 30, 2025
    Publication date: October 23, 2025
    Applicant: Datascope Corporation
    Inventors: Daniel A. WALTERS, Abraham RONAI, Wesley Scott ASHTON, Paul A. NIGRONI
  • Patent number: 12343520
    Abstract: An intravascular device for pumping blood includes a catheter comprising a membrane chamber located between a proximal end and a distal end of the catheter. An inflatable membrane is disposed within the membrane chamber. The intravascular device includes a first one-way valve and optionally a second one-way valve configured to permit blood flow in a first direction. The first one-way valve may be positioned proximal to the membrane chamber, and the second one-way valve may be positioned distal to the membrane chamber. Methods related to intravascular devices and their respective use are provided.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: July 1, 2025
    Assignee: DATASCOPE CORPORATION
    Inventors: Daniel A. Walters, Abraham Ronai, Wesley Scott Ashton, Paul A. Nigroni
  • Publication number: 20240416089
    Abstract: Provided herein is an intra-aortic balloon catheter including a tube; and a sheath seal including an elastomeric housing having a proximal end, a distal end, a lumen arranged between the proximal end of the housing and the distal end of the housing, wherein the housing includes an impingement device, wherein the lumen is configured to slidably receive the tube therein and the impingement device is configured to engage the outer surface of the tube and apply a force thereto in order to prevent the tube from sliding relative to the sheath seal when the impingement device is in a first state.
    Type: Application
    Filed: August 30, 2024
    Publication date: December 19, 2024
    Applicant: Datascope Corp.
    Inventors: Daniel A. WALTERS, Gary Victor SCHWARZ, Matthew HAIN, Vito S. SAVINO, Igor Inga, JR.
  • Patent number: 12076511
    Abstract: Provided herein is an intra-aortic balloon catheter including a tube; and a sheath seal including an elastomeric housing having a proximal end, a distal end, a lumen arranged between the proximal end of the housing and the distal end of the housing, wherein the housing includes an impingement device, wherein the lumen is configured to slidably receive the tube therein and the impingement device is configured to engage the outer surface of the tube and apply a force thereto in order to prevent the tube from sliding relative to the sheath seal when the impingement device is in a first state.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: September 3, 2024
    Assignee: DATASCOPE CORP.
    Inventors: Daniel A. Walters, Gary Victor Schwarz, Matthew Hain, Vito S. Savino, Igor Inga, Jr.
  • Patent number: 11504462
    Abstract: A cardiopulmonary bypass system is described that includes a cardiopulmonary bypass machine having a console, the console has a base and a frame connected to the base. The system further comprises a plurality of peripheral modules operatively connectable to the cardiopulmonary bypass machine via one or more cables. The system further comprises a cable chase having a first end and a second end, and a housing that extends at least partially between the first end and second end to at least partially enclose a channel for receiving one or more cables or conduits connected to one or more of the peripheral modules.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: November 22, 2022
    Assignee: Maquet Cardiopulmonary GmbH
    Inventors: Aidan Hyde, Robert Hoff, Daniel Medart, Daniel A. Walters
  • Publication number: 20220273934
    Abstract: An intravascular device for pumping blood includes a catheter comprising a membrane chamber located between a proximal end and a distal end of the catheter. An inflatable membrane is disposed within the membrane chamber. The intravascular device includes a first one-way valve and optionally a second one-way valve configured to permit blood flow in a first direction. The first one-way valve may be positioned proximal to the membrane chamber, and the second one-way valve may be positioned distal to the membrane chamber. Methods related to intravascular devices and their respective use are provided.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Applicant: Datascope Corporation
    Inventors: Daniel A. WALTERS, Abraham RONAI, Wesley Scott ASHTON, Paul A. NIGRONI
  • Patent number: 11351355
    Abstract: An intravascular device for pumping blood includes a catheter comprising a membrane chamber located between a proximal end and a distal end of the catheter. An inflatable membrane is disposed within the membrane chamber. The intravascular device includes a first one-way valve and optionally a second one-way valve configured to permit blood flow in a first direction. The first one-way valve may be positioned proximal to the membrane chamber, and the second one-way valve may be positioned distal to the membrane chamber. Methods related to intravascular devices and their respective use are provided.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 7, 2022
    Assignee: DATASCOPE CORPORATION
    Inventors: Daniel A. Walters, Abraham Ronai, Wesley Scott Ashton, Paul A. Nigroni
  • Patent number: 11090422
    Abstract: An extracorporeal heart-lung support machine apparatus includes a platform capable of supporting one or more pieces of equipment and at least one coupler mounted to the platform so as to provide a docking interface for a piece of equipment, wherein the coupler includes: an electrical interface configured to matingly engage with a complementary configured electrical interface of the at least one piece of equipment; and a locking mechanism configured to selectively transition between a locked configuration in which a latch member of the locking mechanism is positioned to secure the at least one piece of equipment to the coupler and an unlocked configuration in which the latch member of the locking mechanism is positioned to permit both engagement or disengagement of the electrical interface of the coupler with the electrical interface of the at least one piece of equipment.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 17, 2021
    Assignee: MAQUET CARDIOPULMONARY GMBH
    Inventors: Robert Hoff, Daniel A. Walters
  • Publication number: 20210170162
    Abstract: Disclosed herein are heart pumps that can include a catheter body and an impeller coupled with a distal end of the catheter body. The impeller can include a tip that is resealable or that includes a resealable member. The heart pump can also include a diffuser disposed between the distal end of the catheter body and the impeller, wherein the diffuser includes a flow directing surface.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 10, 2021
    Inventors: Robert L. Campbell, Jeremy J. Koncoski, Thomas M. Mallison, Mark W. McBride, Daniel Metrey, Eric C. Myer, Kevin J. Powell, Adam Roslund, Daniel A. Walters, William James Repka, Phyllis Yuen
  • Patent number: 10960116
    Abstract: Disclosed herein are heart pumps that can include a catheter body and an impeller coupled with a distal end of the catheter body. The impeller can include a tip that is resealable or that includes a resealable member. The heart pump can also include a diffuser disposed between the distal end of the catheter body and the impeller, wherein the diffuser includes a flow directing surface.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 30, 2021
    Assignees: TCI LLC, THE PENNS STATE RESEARCH FOUNDATION
    Inventors: Robert L. Campbell, Jeremy J. Koncoski, Thomas M. Mallison, Mark W. McBride, Daniel Metrey, Eric C. Myer, Kevin J. Powell, Adam Roslund, Daniel A. Walters, William James Repka, Phyllis Yuen
  • Publication number: 20200391014
    Abstract: Provided herein is an intra-aortic balloon catheter including a tube; and a sheath seal including an elastomeric housing having a proximal end, a distal end, a lumen arranged between the proximal end of the housing and the distal end of the housing, wherein the housing includes an impingement device, wherein the lumen is configured to slidably receive the tube therein and the impingement device is configured to engage the outer surface of the tube and apply a force thereto in order to prevent the tube from sliding relative to the sheath seal when the impingement device is in a first state.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Applicant: DATASCOPE CORP.
    Inventors: Daniel A. WALTERS, Gary Victor SCHWARZ, Matthew HAIN, Vito S. SAVINO
  • Patent number: 10583233
    Abstract: A mechanism for adjusting occlusion of a roller pump is described, wherein the mechanism is provided with: an elongated rod member oriented on a central axis of a pump head of the roller pump; and a drive member attached to the elongated rod member so as to move along the elongated rod member between a first position and a second position, wherein the drive member is connected to each roller block of a pump rotor of the pump head so that movement of the drive member by constant increments along the elongated rod member causes non-uniform and/or non-linear incremental movement of each roller block in a direction radial to the central axis of the pump head.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: March 10, 2020
    Assignee: MAQUET CARDIOPULMONARY GmbH
    Inventors: William James Repka, Daniel A. Walters
  • Publication number: 20190184078
    Abstract: Disclosed herein are heart pumps that can include a catheter body and an impeller coupled with a distal end of the catheter body. The impeller can include a tip that is resealable or that includes a resealable member. The heart pump can also include a diffuser disposed between the distal end of the catheter body and the impeller, wherein the diffuser includes a flow directing surface.
    Type: Application
    Filed: February 21, 2019
    Publication date: June 20, 2019
    Inventors: Robert L. Campbell, Jeremy J. Koncoski, Thomas M. Mallison, Mark W. McBride, Daniel Metrey, Eric C. Myer, Kevin J. Powell, Adam Roslund, Daniel A. Walters, William James Repka, Phyllis Yuen
  • Publication number: 20190117865
    Abstract: An intravascular device for pumping blood includes a catheter comprising a membrane chamber located between a proximal end and a distal end of the catheter. An inflatable membrane is disposed within the membrane chamber. The intravascular device includes a first one-way valve and optionally a second one-way valve configured to permit blood flow in a first direction. The first one-way valve may be positioned proximal to the membrane chamber, and the second one-way valve may be positioned distal to the membrane chamber. Methods related to intravascular devices and their respective use are provided.
    Type: Application
    Filed: September 25, 2018
    Publication date: April 25, 2019
    Applicant: Datascope Corporation
    Inventors: Daniel A. WALTERS, Abraham RONAI, Wesley Scott ASHTON, Paul A. NIGRONI
  • Patent number: 10265447
    Abstract: Disclosed herein is a method of pumping blood in a patient. The method includes inserting an impeller housing and impeller into the patient, the impeller disposed within the impeller housing and having a longitudinal axis, positioning the impeller housing and the impeller at a treatment location in the patient, activating an adjustment device at a proximal end portion of the heart pump outside the patient to provide relative motion between the impeller housing and the impeller along the longitudinal axis, and pumping blood through the impeller housing along the longitudinal axis.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 23, 2019
    Assignees: TC1 LLC, The Penn State Research Foundation
    Inventors: Robert L. Campbell, Jeremy J. Koncoski, Thomas M. Mallison, Mark W. McBride, Daniel Metrey, Eric C. Myer, Kevin J. Powell, Adam Roslund, Daniel A. Walters, William James Repka, Phyllis Yuen
  • Publication number: 20190038827
    Abstract: An extracorporeal heart-lung support machine apparatus includes a platform capable of supporting one or more pieces of equipment and at least one coupler mounted to the platform so as to provide a docking interface for a piece of equipment, wherein the coupler includes: an electrical interface configured to matingly engage wills a complementary configured electrical interface of the at least one piece of equipment; and a locking mechanism configured to selectively transition between a locked configuration in which a latch member of the locking mechanism is positioned to secure fee at least one piece of equipment to the coupler and m unlocked configuration in which the latch member of the locking mechanism is positioned to permit both engagement or disengagement of the electrical interface of the coupler with the electrical interface of the at least one piece of equipment.
    Type: Application
    Filed: May 12, 2016
    Publication date: February 7, 2019
    Applicant: Maquet Cardiopulmonary GmbH
    Inventors: Robert HOFF, Daniel A. WALTERS
  • Publication number: 20180289886
    Abstract: A cardiopulmonary bypass system is described that includes a cardiopulmonary bypass machine having a console, the console has a base and a frame connected to the base. The system further comprises a plurality of peripheral modules operatively connectable to the cardiopulmonary bypass machine via one or more cables. The system further comprises a cable chase having a first end and a second end, and a housing that extends at least partially between the first end and second end to at least partially enclose a channel for receiving one or more cables or conduits connected to one or more of the peripheral modules.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 11, 2018
    Applicant: Maquet Cardiopulmonary GmbH
    Inventors: Aidan HYDE, Robert HOFF, Daniel MEDART, Daniel A. WALTERS
  • Publication number: 20180161486
    Abstract: A mechanism for adjusting occlusion of a roller pump is described, wherein the mechanism is provided with: an elongated rod member oriented on a central axis of a pump head of the roller pump; and a drive member attached to the elongated rod member so as to move along the elongated rod member between a first position and a second position, wherein the drive member is connected to each roller block of a pump rotor of the pump head so that movement of the drive member by constant increments along the elongated rod member causes non-uniform and/or non-linear incremental movement of each roller block in a direction radial to the central axis of the pump head.
    Type: Application
    Filed: May 12, 2016
    Publication date: June 14, 2018
    Applicant: Maquet Cardiopulmonary GmbH
    Inventors: William James REPKA, Daniel A. WALTERS
  • Patent number: 9962475
    Abstract: Disclosed herein are heart pumps that can include a catheter body and an impeller coupled with a distal end of the catheter body. The impeller can include a tip that is resealable or that includes a resealable member. The heart pump can also include a diffuser disposed between the distal end of the catheter body and the impeller, wherein the diffuser includes a flow directing surface.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 8, 2018
    Assignees: TC1 LLC, THE PENN STATE RESEARCH FOUNDATION
    Inventors: Robert L. Campbell, Jeremy J. Koncoski, Thomas M. Mallison, Mark W. McBride, Daniel Metrey, Eric C. Myer, Kevin J. Powell, Adam Roslund, Daniel A. Walters, William James Repka, Phyllis Yuen
  • Patent number: D801521
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: October 31, 2017
    Assignee: MAQUET CARDIOPULMONARY GMBH
    Inventors: Aidan Hyde, William James Repka, Daniel A. Walters, Roland Hopp, Manfred Held, Thomas Märzke