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).
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Publication number: 20250168524Abstract: 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: ApplicationFiled: January 23, 2025Publication date: May 22, 2025Applicant: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Patent number: 12279836Abstract: 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: GrantFiled: December 19, 2023Date of Patent: April 22, 2025Assignee: Stryker European Operations LimitedInventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
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Patent number: 12238433Abstract: 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: GrantFiled: March 26, 2024Date of Patent: February 25, 2025Assignee: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Publication number: 20240398076Abstract: 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: ApplicationFiled: October 5, 2022Publication date: December 5, 2024Inventor: David HOFMANN
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Publication number: 20240293196Abstract: 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: ApplicationFiled: June 28, 2022Publication date: September 5, 2024Inventors: Sebastian Zepf, David Hofmann
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Publication number: 20240267641Abstract: 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: ApplicationFiled: March 26, 2024Publication date: August 8, 2024Applicant: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Patent number: 12003869Abstract: 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: GrantFiled: June 23, 2023Date of Patent: June 4, 2024Assignee: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Publication number: 20240115328Abstract: 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: ApplicationFiled: December 19, 2023Publication date: April 11, 2024Applicant: Stryker European Operations LimitedInventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
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Patent number: 11883116Abstract: 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: GrantFiled: December 9, 2021Date of Patent: January 30, 2024Assignee: Stryker European Operations LimitedInventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
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Publication number: 20240008933Abstract: 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: ApplicationFiled: September 20, 2023Publication date: January 11, 2024Applicant: MAKO Surgical Corp.Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
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Patent number: 11806090Abstract: 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: GrantFiled: February 24, 2022Date of Patent: November 7, 2023Assignee: MAKO Surgical Corp.Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
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Publication number: 20230329803Abstract: 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: ApplicationFiled: June 23, 2023Publication date: October 19, 2023Applicant: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Patent number: 11723726Abstract: 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: GrantFiled: October 25, 2022Date of Patent: August 15, 2023Assignee: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Publication number: 20230045799Abstract: 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: ApplicationFiled: October 25, 2022Publication date: February 16, 2023Applicant: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Patent number: 11553970Abstract: 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: GrantFiled: March 6, 2020Date of Patent: January 17, 2023Assignee: Stryker European Holdings I, LLCInventors: Hans Schöpp, Florian Herrmann, David Hofmann, Udo Pfrengle, Fabian Riegelsberger
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Patent number: 11510740Abstract: 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: GrantFiled: May 11, 2021Date of Patent: November 29, 2022Assignee: MAKO Surgical Corp.Inventors: Jochen Breisacher, David Hofmann, Emeric Umbdenstock, Jonathan Morgan, Paul Hoekstra
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Publication number: 20220183769Abstract: 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: ApplicationFiled: December 9, 2021Publication date: June 16, 2022Applicant: Stryker European Operations LimitedInventors: Fadi Ghanam, Fabian Riegelsberger, David Hofmann, Reinhold Zimmermann, Andreas Reutter
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Publication number: 20220175467Abstract: 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: ApplicationFiled: February 24, 2022Publication date: June 9, 2022Applicant: MAKO Surgical Corp.Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
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Patent number: 11291507Abstract: 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: GrantFiled: June 14, 2019Date of Patent: April 5, 2022Assignee: MAKO Surgical Corp.Inventors: Jean Stawiaski, Fadi Ghanam, David Hofmann
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Patent number: D1067806Type: GrantFiled: March 30, 2024Date of Patent: March 25, 2025Inventor: David Hofmann