Patents by Inventor Andrew J. Hamel
Andrew J. Hamel 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: 20200179033Abstract: An electrosurgical system includes an electrosurgical probe connected to a control console, wherein the probe is capable of coagulating and ablating tissue depending on a selected operating mode. Before operating the system, probe-specific data stored in a memory device associated with the probe is read by a processing device in the console. The data includes source impedance values specific to a coagulation or cutting mode of operation. A constant duty cycle value for a modulated cutting mode also is provided. Depending on the operating mode selected, an RF generator adjusted to have a predetermined source impedance value provides a voltage value to the probe. During the duty-cycled mode, the RF generator generates an instantaneous voltage value output for a duty cycle portion that is less than 100% of a time period, which value is no less than a maximum continuous average voltage value for the electrosurgical probe.Type: ApplicationFiled: February 19, 2020Publication date: June 11, 2020Inventors: Steffan A. Benamou, Andrew J. Hamel, David Hoffman, David I. Brubaker
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Patent number: 10603099Abstract: An electrosurgical system includes an electrosurgical probe connected to a control console, wherein the probe is capable of coagulating and ablating tissue depending on a selected operating mode. Before operating the system, probe-specific data stored in a memory device associated with the probe is read by a processing device in the console. The data includes source impedance values specific to a coagulation or cutting mode of operation. A constant duty cycle value for a modulated cutting mode also is provided. Depending on the operating mode selected, an RF generator adjusted to have a predetermined source impedance value provides a voltage value to the probe. During the duty-cycled mode, the RF generator generates an instantaneous voltage value output for a duty cycle portion that is less than 100% of a time period, which value is no less than a maximum continuous average voltage value for the electrosurgical probe.Type: GrantFiled: November 17, 2016Date of Patent: March 31, 2020Assignee: Stryker CorporationInventors: Steffan A. Benamou, Andrew J. Hamel, David Hoffman, David I. Brubaker
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Patent number: 10299669Abstract: A method for accessing the interior of a joint, wherein the joint comprises tissue which defines a boundary of the joint, the tissue comprising an interior surface facing toward the interior of the joint and an exterior surface facing away from the interior of the joint, the method comprising: providing a light-emitting needle assembly comprising a hollow needle having a light source at the distal end thereof; and observing the interior surface of the tissue from the interior of the joint as the needle approaches the exterior surface of the tissue.Type: GrantFiled: May 31, 2016Date of Patent: May 28, 2019Assignee: Pivot Medical, Inc.Inventor: Andrew J. Hamel
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Patent number: 10080554Abstract: A wireless foot control apparatus allows an operator to control multiple medical devices during an endoscopic medical procedure. The apparatus comprises a control console with controls designed for foot operation to control various medical devices. The controls include one or more foot pedals and foot switches to control the devices, including a selection switch to allow selection of the device to be controlled at a particular time. The console transmits signals over a wireless medium, to cause a remote receiver unit to select the device to be controlled and to control the selected device over a wired medium, in response to operation of the foot controls. The console may include a rechargeable battery, which may be sealed within the console's housing and charged inductively when the console is placed in a charging station. The receiver unit and the charging station can be separate units or integrated within a single housing.Type: GrantFiled: June 9, 2017Date of Patent: September 25, 2018Assignee: STRYKER CORPORATIONInventors: Andrew J. Hamel, Michael D. Baycura, Michael G. Hilldoerfer, Vasudev Nambakam, Salmaan Hameed, William H. L. Chang
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Publication number: 20180221005Abstract: A wireless foot control apparatus allows an operator to control multiple medical devices during an endoscopic medical procedure. The apparatus comprises a control console with controls designed for foot operation to control various medical devices. The controls include one or more foot pedals and foot switches to control the devices, including a selection switch to allow selection of the device to be controlled at a particular time. The console transmits signals over a wireless medium, to cause a remote receiver unit to select the device to be controlled and to control the selected device over a wired medium, in response to operation of the foot controls. The console may include a rechargeable battery, which may be sealed within the console's housing and charged inductively when the console is placed in a charging station. The receiver unit and the charging station can be separate units or integrated within a single housing.Type: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Inventors: Andrew J. HAMEL, Michael D. BAYCURA, Michael G. HILLDOERFER, Vasudev NAMBAKAM, Salmaan HAMEED, William H.L. CHANG
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Publication number: 20170273673Abstract: A wireless foot control apparatus allows an operator to control multiple medical devices during an endoscopic medical procedure. The apparatus comprises a control console with controls designed for foot operation to control various medical devices. The controls include one or more foot pedals and foot switches to control the devices, including a selection switch to allow selection of the device to be controlled at a particular time. The console transmits signals over a wireless medium, to cause a remote receiver unit to select the device to be controlled and to control the selected device over a wired medium, in response to operation of the foot controls. The console may include a rechargeable battery, which may be sealed within the console's housing and charged inductively when the console is placed in a charging station. The receiver unit and the charging station can be separate units or integrated within a single housing.Type: ApplicationFiled: June 9, 2017Publication date: September 28, 2017Inventors: Andrew J. HAMEL, Michael D. BAYCURA, Michael G. HILLDOERFER, Vasudev NAMBAKAM, Salmaan HAMEED, William H.L. CHANG
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Patent number: 9681858Abstract: A wireless foot control apparatus allows an operator to control multiple medical devices during an endoscopic medical procedure. The apparatus comprises a control console with controls designed for foot operation to control various medical devices. The controls include one or more foot pedals and foot switches to control the devices, including a selection switch to allow selection of the device to be controlled at a particular time. The console transmits signals over a wireless medium, to cause a remote receiver unit to select the device to be controlled and to control the selected device over a wired medium, in response to operation of the foot controls. The console may include a rechargeable battery, which may be sealed within the console's housing and charged inductively when the console is placed in a charging station. The receiver unit and the charging station can be separate units or integrated within a single housing.Type: GrantFiled: April 16, 2015Date of Patent: June 20, 2017Assignee: STRYKER CORPORATIONInventors: Andrew J. Hamel, Michael D. Baycura, Michael G. Hilldoerfer, Vasudev Nambakam, Salmaan Hameed, William H. L. Chang
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Publication number: 20170065329Abstract: An electrosurgical system includes an electrosurgical probe connected to a control console, wherein the probe is capable of coagulating and ablating tissue depending on a selected operating mode. Before operating the system, probe-specific data stored in a memory device associated with the probe is read by a processing device in the console. The data includes source impedance values specific to a coagulation or cutting mode of operation. A constant duty cycle value for a modulated cutting mode also is provided. Depending on the operating mode selected, an RF generator adjusted to have a predetermined source impedance value provides a voltage value to the probe. During the duty-cycled mode, the RF generator generates an instantaneous voltage value output for a duty cycle portion that is less than 100% of a time period, which value is no less than a maximum continuous average voltage value for the electrosurgical probe.Type: ApplicationFiled: November 17, 2016Publication date: March 9, 2017Inventors: Steffan A. BENAMOU, Andrew J. HAMEL, David HOFFMAN, David I. BRUBAKER
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Patent number: 9526559Abstract: An electrosurgical system includes an electrosurgical probe connected to a control console, wherein the probe is capable of coagulating and ablating tissue depending on a selected operating mode. Before operating the system, probe-specific data stored in a memory device associated with the probe is read by a processing device in the console. The data includes source impedance values specific to a coagulation or cutting mode of operation. A constant duty cycle value for a modulated cutting mode also is provided. Depending on the operating mode selected, an RF generator adjusted to have a predetermined source impedance value provides a voltage value to the probe. During the duty-cycled mode, the RF generator generates an instantaneous voltage value output for a duty cycle portion that is less than 100% of a time period, which value is no less than a maximum continuous average voltage value for the electrosurgical probe.Type: GrantFiled: January 16, 2014Date of Patent: December 27, 2016Assignee: Stryker CorporationInventors: Steffan A. Benamou, Andrew J. Hamel, David Hoffman, David I. Brubaker
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Publication number: 20160345816Abstract: A method for accessing the interior of a joint, wherein the joint comprises tissue which defines a boundary of the joint, the tissue comprising an interior surface facing toward the interior of the joint and an exterior surface facing away from the interior of the joint, the method comprising: providing a light-emitting needle assembly comprising a hollow needle having a light source at the distal end thereof; and observing the interior surface of the tissue from the interior of the joint as the needle approaches the exterior surface of the tissue.Type: ApplicationFiled: May 31, 2016Publication date: December 1, 2016Inventor: Andrew J. Hamel
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Patent number: 9504521Abstract: A surgical tool arrangement including a powered handpiece which cooperates with a combined electrosurgical and mechanical cutting instrument. The electrosurgical and mechanical cutting instrument includes an outer static housing element which defines an electrode for delivering electrical energy to the surgical site, and a cutting element disposed within the outer housing and movable relative thereto for manipulating patient tissue. The electrosurgical and mechanical cutting instrument is an integral component attachable to the surgical tool to provide multiple functions in a single instrument, such as cauterization, ablation and mechanical cutting, without the need for attachment of additional housing structures or other adapters. The tool arrangement also includes a universal handpiece which is capable of accepting and operating a number of different surgical instruments, each having one or multiple functions.Type: GrantFiled: March 17, 2006Date of Patent: November 29, 2016Assignee: STRYKER CORPORATIONInventors: Kurt M. Deutmeyer, Braden M. Robison, Andrew J. Hamel, Michael G. Hilldoerfer
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Publication number: 20150216513Abstract: A wireless foot control apparatus allows an operator to control multiple medical devices during an endoscopic medical procedure. The apparatus comprises a control console with controls designed for foot operation to control various medical devices. The controls include one or more foot pedals and foot switches to control the devices, including a selection switch to allow selection of the device to be controlled at a particular time. The console transmits signals over a wireless medium, to cause a remote receiver unit to select the device to be controlled and to control the selected device over a wired medium, in response to operation of the foot controls. The console may include a rechargeable battery, which may be sealed within the console's housing and charged inductively when the console is placed in a charging station. The receiver unit and the charging station can be separate units or integrated within a single housing.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Andrew J. HAMEL, Michael D. BAYCURA, Michael G. HILLDOERFER, Vasudev NAMBAKAM, Salmaan HAMEED, William H.L. CHANG
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Patent number: 9035741Abstract: A wireless foot control apparatus allows an operator to control multiple medical devices during an endoscopic medical procedure. The apparatus comprises a control console with controls designed for foot operation to control various medical devices. The controls include one or more foot pedals and foot switches to control the devices, including a selection switch to allow selection of the device to be controlled at a particular time. The console transmits signals over a wireless medium, to cause a remote receiver unit to select the device to be controlled and to control the selected device over a wired medium, in response to operation of the foot controls. The console may include a rechargeable battery, which may be sealed within the console's housing and charged inductively when the console is placed in a charging station. The receiver unit and the charging station can be separate units or integrated within a single housing.Type: GrantFiled: June 27, 2003Date of Patent: May 19, 2015Assignee: STRYKER CORPORATIONInventors: Andrew J. Hamel, Michael D. Baycura, Michael G. Hilldoerfer, Vasudev Nambakam, Salmaan Hameed, William H. L. Chang
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Patent number: 8845576Abstract: An electrosurgical tool for cauterizing or ablating patient tissue, which tool includes a tubular shaft which defines therein a conduit in communication with a suction source and which mounts an electrode at the distal end thereof. An electrode support element is provided at the distal end of the shaft for mounting and insulating the electrode. The support element and the electrode together define a suction opening at the treating surface of the electrode which minimizes clogging of the tool.Type: GrantFiled: December 18, 2009Date of Patent: September 30, 2014Assignee: Stryker CorporationInventors: Steven C. Kramer, Andrew J. Hamel, Reid Cover
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Publication number: 20140155880Abstract: An electrosurgical system includes an electrosurgical probe connected to a control console, wherein the probe is capable of coagulating and ablating tissue depending on a selected operating mode. Before operating the system, probe-specific data stored in a memory device associated with the probe is read by a processing device in the console. The data includes source impedance values specific to a coagulation or cutting mode of operation. A constant duty cycle value for a modulated cutting mode also is provided. Depending on the operating mode selected, an RF generator adjusted to have a predetermined source impedance value provides a voltage value to the probe. During the duty-cycled mode, the RF generator generates an instantaneous voltage value output for a duty cycle portion that is less than 100% of a time period, which value is no less than a maximum continuous average voltage value for the electrosurgical probe.Type: ApplicationFiled: January 16, 2014Publication date: June 5, 2014Inventors: Steffan A. BENAMOU, Andrew J. HAMEL, David HOFFMAN, David I. BRUBAKER
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Patent number: 8709009Abstract: A system for remotely controlling multiple medical devices. Included in the system are at least a first medical device and a second medical device, each of which are capable of performing one or more functions. Also included is a remote control unit having at least a first switch and a second switch. Connected to each of the medical devices is a controller that can simultaneously dispatch one or more device command signals to each of the medical devices in response to receiving one or more remote command signals from the remote control unit, thereby allowing a user to remotely and simultaneously control one or more functions associated with each of the medical devices.Type: GrantFiled: December 10, 2010Date of Patent: April 29, 2014Assignee: Stryker CorporationInventor: Andrew J. Hamel
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Patent number: 8672934Abstract: An electrosurgical system includes an electrosurgical probe connected to a control console, wherein the probe is capable of coagulating and ablating tissue depending on a selected operating mode. Before operating the system, probe-specific data stored in a memory device associated with the probe is read by a processing device in the console. The data includes source impedance values specific to a coagulation or cutting mode of operation. A constant duty cycle value for a modulated cutting mode also is provided. Depending on the operating mode selected, an RF generator adjusted to have a predetermined source impedance value provides a voltage value to the probe. During the duty-cycled mode, the RF generator generates an instantaneous voltage value output for a duty cycle portion that is less than 100% of a time period, which value is no less than a maximum continuous average voltage value for the electrosurgical probe.Type: GrantFiled: March 16, 2010Date of Patent: March 18, 2014Assignee: Stryker CorporationInventors: Steffan A. Benamou, Andrew J. Hamel, David Hoffman, David I. Brubaker
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Patent number: 8638191Abstract: A system for providing wireless remote control over one or more devices. Included in the system is at least one wireless button that can be placed at various locations and which communicates with at least one sensor when the wireless button and sensor are brought within close proximity to one another. According to one embodiment, a wireless button can only be activated when the button is located within an authorized activation area. In another embodiment, a wireless button can only be activated by an authorized user. In yet a further embodiment, a wireless button can only be activated by an authorized user when the button is located within an authorized activation area.Type: GrantFiled: September 18, 2008Date of Patent: January 28, 2014Assignee: Stryker CorporationInventors: Andrew J. Hamel, Brannon P. Wells, Reid S. Cover, Michael G. Hilldoerfer
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Patent number: 8246230Abstract: An LED based light source unit for an endoscopic imaging system produces illumination for a camera through an endoscope. The light source unit includes an array of LEDs mounted to a thermally conductive substrate, a light guide to collect light emitted from the LEDs and to couple the light into a group of optical fibers within the endoscope, and an interface to allow the light source unit to be removably attached to the endoscope at the endoscope's external light port. The LEDs therein may be overdriven by power for increased light output. When the LEDs reach their lifetime, the light source unit can be discarded.Type: GrantFiled: September 14, 2011Date of Patent: August 21, 2012Assignee: Stryker CorporationInventors: Erik F. D. Todd, Hasan Ertas, Andrew J. Hamel
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System for preventing unintended activation of a medical device by a portable remote control console
Patent number: 8175590Abstract: A network system prevents portable wireless remote control consoles from unintended activation of a medical device by determining if the console is located in a working space within a medical care room. Transceiver locator devices determine the position of the remote control consoles and send information to room control units indicating when a console is within the desired working space. The room control unit receives signals from the remote control console in the working space to control medical devices. The room control unit can also determine which of multiple remote control consoles within the working space is permitted to operate the medical devices. Each room control unit can send a presence output to the remote control console to enable use thereof. The remote control console can have an orientation sensor or a grip detector to prevent unintended operation thereof.Type: GrantFiled: September 16, 2008Date of Patent: May 8, 2012Assignee: Stryker CorporationInventors: Andrew J. Hamel, Brannon P. Wells, Michael G. Hilldoerfer