Patents by Inventor Robert Mitchell Baldwin

Robert Mitchell Baldwin 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).

  • Patent number: 12557989
    Abstract: A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: February 24, 2026
    Assignee: Stryker European Operations Limited
    Inventors: Kevin Buckley, Gerard Nunan, Stephen Faul, David Eustace, Kevin Manley, Robert Mitchell Baldwin, David Tallon
  • Publication number: 20250303048
    Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.
    Type: Application
    Filed: June 16, 2025
    Publication date: October 2, 2025
    Applicant: Stryker Corporation
    Inventors: Adam Darwin Downey, Brett Merkel, Michael Teasdale Smith, Robert Mitchell Baldwin, Benjamin Fineout, Jon Bodnar, Darryl D. Daniel, II, Anthony Gatica, Mark Friedman
  • Patent number: 12329894
    Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: June 17, 2025
    Assignee: Stryker Corporation
    Inventors: Adam Darwin Downey, Brett Merkel, Michael Teasdale Smith, Robert Mitchell Baldwin, Benjamin Fineout, Jon Bodnar, Darryl D. Daniel, II, Anthony Gatica, Mark Friedman
  • Publication number: 20240148252
    Abstract: A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.
    Type: Application
    Filed: March 14, 2022
    Publication date: May 9, 2024
    Applicant: Stryker European Operations Limited
    Inventors: Kevin Buckley, Gerard Nunan, Stephen Faul, David Eustace, Kevin Manley, Robert Mitchell Baldwin, David Tallon
  • Publication number: 20230381397
    Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 30, 2023
    Applicant: Stryker Corporation
    Inventors: Adam Darwin Downey, Brett Merkel, Michael Teasdale Smith, Robert Mitchell Baldwin, Benjamin Fineout, Jon Bodnar, Darryl D. Daniel, II, Anthony Gatica, Mark Friedman
  • Patent number: 11712505
    Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: August 1, 2023
    Assignee: Stryker Corporation
    Inventors: Adam Darwin Downey, Brett Merkel, Michael Teasdale Smith, Robert Mitchell Baldwin, Benjamin Fineout, Jon Bodnar, Darryl D. Daniel, II, Anthony Gatica, Mark Friedman
  • Publication number: 20220031930
    Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 3, 2022
    Applicant: Stryker Corporation
    Inventors: Adam Darwin Downey, Brett Merkel, Michael Teasdale Smith, Robert Mitchell Baldwin, Benjamin Fineout, Jon Bodnar, Darryl D. Daniel, Anthony Gatica, Mark Friedman
  • Publication number: 20220031928
    Abstract: A surgical irrigation cassette comprises a cassette housing, a portion of a pump, and fluid pathways. The housing defines a chamber therein and a first console connector including a first pneumatic connector port. The pump portion includes an intake side of the pump and an output side of the pump. The fluid pathways are disposed at least in part within the chamber. A first fluid pathway, in an installed position, connects the intake side of the pump with a supply fluid container. A second fluid pathway, in an installed position, connects the output side of the pump and a handpiece. A third fluid pathway, in an installed position, connects the handpiece and a waste container A fourth fluid pathway, in an installed position, connects the first console connector and the waste container.
    Type: Application
    Filed: September 18, 2019
    Publication date: February 3, 2022
    Applicant: Stryker Corporation
    Inventors: Ben Fineout, Brett Merkel, Jonathan Bodnar, Robert Mitchell Baldwin, Marc Arthur, Steve Rolfson, JR.