Patents by Inventor David Hofmann

David Hofmann 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: 20250168524
    Abstract: A camera unit for use with a surgical navigation system. The camera unit includes an outer casing and a rigid support structure enclosed within the outer casing. Two first optical sensors are coupled to the outer casing, and each including sensing elements adapted to sense light in a near-infrared spectrum. The two first optical sensors are commonly fixed to the rigid support structure and are separated by a predefined distance on the rigid support structure so as to be stereoscopically arranged. A second optical sensor is coupled to the outer casing and is adapted to sense light in a visible light spectrum. A camera controller is disposed within the outer casing and is configured to control the two first optical sensors and the second optical sensor for tracking an object within an operating room.
    Type: Application
    Filed: January 23, 2025
    Publication date: May 22, 2025
    Applicant: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Patent number: 12279836
    Abstract: A tracker, a surgical navigation system with the tracker, and a method of operating the tracker are described. The tracker comprises a first switch configured to be operated between a first switch configuration and a second switch configuration. The tracker also comprises one or more sources of electromagnetic radiation configured to selectively emit electromagnetic radiation with a first radiation characteristic or a second radiation characteristic. The tracker further comprises electrical circuitry configured to selectively control the one or more sources of electromagnetic radiation to emit electromagnetic radiation having the first radiation characteristic in the first switch configuration and to emit electromagnetic radiation having the second radiation characteristic in the second switch configuration, wherein the second radiation characteristic is different from the first radiation characteristic.
    Type: Grant
    Filed: December 19, 2023
    Date of Patent: April 22, 2025
    Assignee: Stryker European Operations Limited
    Inventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
  • Patent number: 12238433
    Abstract: Surgical navigation systems and methods for tracking an object within an operating room involve a camera unit that houses a first stereoscopic sensing system and a second stereoscopic sensing system each comprising sensing elements adapted to sense light. A controller utilizes the first stereoscopic sensing system to sense light from the object and track the object according to a first resolution. The controller utilizes the second stereoscopic sensing system to sense light from the object and track the object according to a second resolution that is lower than the first resolution. The controller obtains data related to the object from the second stereoscopic sensing system and modifies control of the sensing elements of the first stereoscopic sensing system based on the obtained data related to the object.
    Type: Grant
    Filed: March 26, 2024
    Date of Patent: February 25, 2025
    Assignee: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Publication number: 20240398076
    Abstract: The jewelry comprises at least one first holder comprising a horseshoe-shaped part, a lever mounted on a shaft so as to be pivotable relative to the holder between an open position and a closed position, and a second holder bearing a stone, said second holder being intended to be inserted into said part and held in said part by said lever in the closed position.
    Type: Application
    Filed: October 5, 2022
    Publication date: December 5, 2024
    Inventor: David HOFMANN
  • Publication number: 20240293196
    Abstract: A medical remote control for wirelessly controlling a medical instrument or device includes a housing having a fastening portion to be fastened to an object, in particular the medical, digitally controllable instrument or device; an actuating button located in or on the housing, in particular exactly one single actuating button, for generating an input signal by manual actuation of the actuating button; a wireless data interface for establishing a wireless data connection to an external data interface, in particular a data interface of the medical instrument or device, and for transmitting data; and a control unit for processing the input signal of the actuating button and determining an associated control signal based on the input signal and to transmit the control signal via the data interface. The medical remote control can be used with or in a control system, a control method, and a computer-readable storage medium.
    Type: Application
    Filed: June 28, 2022
    Publication date: September 5, 2024
    Inventors: Sebastian Zepf, David Hofmann
  • Publication number: 20240267641
    Abstract: Surgical navigation systems and methods for tracking an object within an operating room involve a camera unit that houses a first stereoscopic sensing system and a second stereoscopic sensing system each comprising sensing elements adapted to sense light. A controller utilizes the first stereoscopic sensing system to sense light from the object and track the object according to a first resolution. The controller utilizes the second stereoscopic sensing system to sense light from the object and track the object according to a second resolution that is lower than the first resolution. The controller obtains data related to the object from the second stereoscopic sensing system and modifies control of the sensing elements of the first stereoscopic sensing system based on the obtained data related to the object.
    Type: Application
    Filed: March 26, 2024
    Publication date: August 8, 2024
    Applicant: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Patent number: 12003869
    Abstract: Systems and methods to track an object within an operating room with a camera unit. The camera unit includes a first optical sensor with sensing elements to sense light in a near-infrared spectrum and a second optical sensor to sense light in a visible light spectrum. A controller is in communication with the first and second optical sensors. The controller obtains, from the second optical sensor, data related to the object within the operating room. The controller modifies control of the sensing elements of the first optical sensor based on the data of the object obtained by the second optical sensor.
    Type: Grant
    Filed: June 23, 2023
    Date of Patent: June 4, 2024
    Assignee: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Publication number: 20240115328
    Abstract: A tracker, a surgical navigation system with the tracker, and a method of operating the tracker are described. The tracker comprises a first switch configured to be operated between a first switch configuration and a second switch configuration. The tracker also comprises one or more sources of electromagnetic radiation configured to selectively emit electromagnetic radiation with a first radiation characteristic or a second radiation characteristic. The tracker further comprises electrical circuitry configured to selectively control the one or more sources of electromagnetic radiation to emit electromagnetic radiation having the first radiation characteristic in the first switch configuration and to emit electromagnetic radiation having the second radiation characteristic in the second switch configuration, wherein the second radiation characteristic is different from the first radiation characteristic.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 11, 2024
    Applicant: Stryker European Operations Limited
    Inventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
  • Patent number: 11883116
    Abstract: A tracker, a surgical navigation system with the tracker, and a method of operating the tracker are described. The tracker comprises a first switch configured to be operated between a first switch configuration and a second switch configuration. The tracker also comprises one or more sources of electromagnetic radiation configured to selectively emit electromagnetic radiation with a first radiation characteristic or a second radiation characteristic. The tracker further comprises electrical circuitry configured to selectively control the one or more sources of electromagnetic radiation to emit electromagnetic radiation having the first radiation characteristic in the first switch configuration and to emit electromagnetic radiation having the second radiation characteristic in the second switch configuration, wherein the second radiation characteristic is different from the first radiation characteristic.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 30, 2024
    Assignee: Stryker European Operations Limited
    Inventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
  • Publication number: 20240008933
    Abstract: Systems and methods for defining a relationship between a surgical object and a tracker coupled to the surgical object. A first optical sensor senses light in an infrared spectrum or a near-infrared spectrum. A second optical sensor senses light in a visible light spectrum. Controller(s) acquire one or more first images of the tracker from the first optical sensor and acquire one or more second images of the surgical object from the second optical sensor. The controller(s) recognize a pose of the tracker based on the one or more first image and recognize a geometry of the surgical object based on the one or more second images. The controller(s) correlate the recognized pose of the tracker and the recognized geometry of the surgical object to define a relationship between the tracker and the surgical object.
    Type: Application
    Filed: September 20, 2023
    Publication date: January 11, 2024
    Applicant: MAKO Surgical Corp.
    Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
  • Patent number: 11806090
    Abstract: Systems and methods for calibration of a surgical tool having a tracker. At least one camera captures images of the tracker at a first exposure and captures images of the surgical tool at a second exposure with a different exposure time and/or illumination than the first exposure. Controller(s) recognize a pose of the tracker based on the first exposure images and recognize a geometry of the surgical tool based on the second exposure images. The controller(s) correlate the recognized pose of the tracker and the recognized geometry of the surgical tool to define a relationship between the tracker and the surgical tool and calibrate the surgical tool based on the defined relationship.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: November 7, 2023
    Assignee: MAKO Surgical Corp.
    Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
  • Publication number: 20230329803
    Abstract: Systems and methods to track an object within an operating room with a camera unit. The camera unit includes a first optical sensor with sensing elements to sense light in a near-infrared spectrum and a second optical sensor to sense light in a visible light spectrum. A controller is in communication with the first and second optical sensors. The controller obtains, from the second optical sensor, data related to the object within the operating room. The controller modifies control of the sensing elements of the first optical sensor based on the data of the object obtained by the second optical sensor.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Applicant: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Patent number: 11723726
    Abstract: Systems and methods to track objects within an operating room with a navigation system that includes an optical sensor including sensing elements and a controller in communication with the optical sensor. The controller controls the optical sensor to process a first quantity of the sensing elements to view a first region of interest. The object is tracked within the first region of interest with the optical sensor. The controller obtains data related to the object within the operating room. The data may include a type of the object and/or prior pose data of the object being tracked. Based on the data, the controller controls the optical sensor to process a second quantity of the sensing elements, different from the first quantity, to view a second region of interest different from the first region of interest. The object is tracked within the second region of interest with the optical sensor.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: August 15, 2023
    Assignee: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Publication number: 20230045799
    Abstract: Systems and methods to track objects within an operating room with a navigation system that includes an optical sensor including sensing elements and a controller in communication with the optical sensor. The controller controls the optical sensor to process a first quantity of the sensing elements to view a first region of interest. The object is tracked within the first region of interest with the optical sensor. The controller obtains data related to the object within the operating room. The data may include a type of the object and/or prior pose data of the object being tracked. Based on the data, the controller controls the optical sensor to process a second quantity of the sensing elements, different from the first quantity, to view a second region of interest different from the first region of interest. The object is tracked within the second region of interest with the optical sensor.
    Type: Application
    Filed: October 25, 2022
    Publication date: February 16, 2023
    Applicant: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Patent number: 11553970
    Abstract: A method, a controller, and a surgical hybrid navigation system for transferring a registration of three dimensional image data of a surgical object from a first to a second surgical navigation system are described. A first tracker that is detectable by a first detector of the first surgical navigation system is arranged in a fixed spatial relationship with the surgical object and a second tracker that is detectable by a second detector of the second surgical navigation system is arranged in a fixed spatial relationship with the surgical object. The method includes registering the three dimensional image data of the surgical object in a first coordinate system of the first surgical navigation system and determining a first position and orientation of the first tracker in the first coordinate system and a second position and orientation of the second tracker in a second coordinate system of the second surgical navigation system.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: January 17, 2023
    Assignee: Stryker European Holdings I, LLC
    Inventors: Hans Schöpp, Florian Herrmann, David Hofmann, Udo Pfrengle, Fabian Riegelsberger
  • Patent number: 11510740
    Abstract: Systems and methods track objects within an operating room. A machine vision system includes a camera and a controller. A navigation system includes a camera unit including a sensor array. The sensor array includes a plurality of sensing elements. The controller system identifies a first subset of the plurality of sensing elements to be active based on the position of the object. The controller is also configured to track a movement of the object within the operating room using the first subset of the plurality of sensing elements while preventing the use of the second subset of the plurality of sensing elements.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: November 29, 2022
    Assignee: MAKO Surgical Corp.
    Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
  • Publication number: 20220183769
    Abstract: A tracker, a surgical navigation system with the tracker, and a method of operating the tracker are described. The tracker comprises a first switch configured to be operated between a first switch configuration and a second switch configuration. The tracker also comprises one or more sources of electromagnetic radiation configured to selectively emit electromagnetic radiation with a first radiation characteristic or a second radiation characteristic. The tracker further comprises electrical circuitry configured to selectively control the one or more sources of electromagnetic radiation to emit electromagnetic radiation having the first radiation characteristic in the first switch configuration and to emit electromagnetic radiation having the second radiation characteristic in the second switch configuration, wherein the second radiation characteristic is different from the first radiation characteristic.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 16, 2022
    Applicant: Stryker European Operations Limited
    Inventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
  • Publication number: 20220175467
    Abstract: Systems and methods for calibration of a surgical tool having a tracker. At least one camera captures images of the tracker at a first exposure and captures images of the surgical tool at a second exposure with a different exposure time and/or illumination than the first exposure. Controller(s) recognize a pose of the tracker based on the first exposure images and recognize a geometry of the surgical tool based on the second exposure images. The controller(s) correlate the recognized pose of the tracker and the recognized geometry of the surgical tool to define a relationship between the tracker and the surgical tool and calibrate the surgical tool based on the defined relationship.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 9, 2022
    Applicant: MAKO Surgical Corp.
    Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
  • Patent number: 11291507
    Abstract: Navigation systems and methods for tracking physical objects near a target site during a surgical procedure are provided, the navigation system comprises a robotic device and an instrument attached to the robotic device; a process of optical registration and calibration can improve operation results by increasing accuracy and speed and eliminate the need for additional reference trackers, such as a pointer.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: April 5, 2022
    Assignee: MAKO Surgical Corp.
    Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
  • Patent number: D1067806
    Type: Grant
    Filed: March 30, 2024
    Date of Patent: March 25, 2025
    Inventor: David Hofmann