Patents by Inventor William H. L. Chang
William H. L. Chang 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: 20230165658Abstract: An exemplary system for acquiring surgical imaging data comprises a surgical imaging device; an imaging controller; and a communication cable for connecting the surgical imaging device to the imaging controller, comprising: a distal end for connecting with the surgical imaging device; a proximal end for connecting with the imaging controller; a single conductor extending between the distal end and the proximal end of the communication cable, the single conductor configured to: transmit surgical imaging data from the surgical imaging device to the imaging controller, and transmit a control signal and power from the imaging controller to the surgical imaging device.Type: ApplicationFiled: November 29, 2022Publication date: June 1, 2023Applicant: Stryker CorporationInventors: William H. L. CHANG, Chien Mien PANG, Ajay RAMESH, Danny NGUYEN
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Publication number: 20220192476Abstract: A light source for illuminating a target for medical imaging include a first light emitter package comprising a first light emitter that emits light having a first wavelength band and a second light emitter that emits light having a second wavelength band that is different than the first wavelength band; and a controller for operating the light source in a first mode in which the first light emitter is activated and the second light emitter is deactivated and a second mode in which the first light emitter is deactivated and the second light emitter is activated.Type: ApplicationFiled: December 21, 2021Publication date: June 23, 2022Applicant: Stryker CorporationInventors: Chien Mien PANG, Eric Charles HUYNH, Ajay RAMESH, William H. L. CHANG
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Publication number: 20220110512Abstract: A method for defogging an optical component of an endoscope includes operating an illuminator in an imaging mode in which the illuminator generates illumination light for endoscopic imaging of a target, wherein at least a portion of the illumination light is generated by a light source that generates light having a first waveband at an imaging intensity level; and changing the operating mode of the illuminator from the imaging mode to a defogging mode in which an intensity level of the light having the first waveband is increased from the imaging intensity level to a defogging intensity level to warm and defog the optical component of the endoscope.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Applicant: Stryker CorporationInventors: Chien Mien PANG, Eric Charles HUYNH, Ajay RAMESH, Levey TRAN, William H. L. CHANG, Andrew Morgan ROBINSON
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Publication number: 20210019672Abstract: A method of providing a visual indication that information is being saved or broadcast includes providing at least one recording device for obtaining the information, providing a system for saving and/or broadcasting the information obtained from the at least one recording device, providing at least one monitor for viewing the information, providing a plurality of visual indications, and activating the plurality of visual indications when the information is being saved or broadcast.Type: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Applicant: Stryker CorporationInventors: Ramanan PARAMASIVAN, Brian BAILEY, Suraj BHAT, William H.L. CHANG, Benjamin H. FEINGOLD, Steve HANNING, Amit MAHADIK, John T. SHEN, Murthy VINJAMURI
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Patent number: 10702130Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other by using tabs and grooves, creating a sealed and tamper-evident housing without the use of externally exposed fasteners. A tool for attaching the two parts and a method of its use are also provided.Type: GrantFiled: February 22, 2017Date of Patent: July 7, 2020Assignee: Stryker CorporationInventors: Wenjie Deng, William H. L. Chang, Dai D. Tong
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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: 20170337493Abstract: Methods for efficiently processing surgical center workflow procedures. The methods include using optical character recognition for easing an admission process, entering patient information into operating room devices, using a wearable code to obtain a patient record, obtaining a patient record including a safe surgical checklist for review during a surgical procedure, providing a visual indication of information flow out of a medical care area and easily recording information on a whiteboard in the medical care area.Type: ApplicationFiled: May 11, 2017Publication date: November 23, 2017Inventors: Ramanan PARAMASIVAN, Brian BAILEY, Suraj BHAT, William H.L. CHANG, Benjamin H. FEINGOLD, Steve HANNING, Amit MAHADIK, John T. SHEN, Murthy VINJAMURI
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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: 20170156570Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other by using tabs and grooves, creating a sealed and tamper-evident housing without the use of externally exposed fasteners. A tool for attaching the two parts and a method of its use are also provided.Type: ApplicationFiled: February 22, 2017Publication date: June 8, 2017Inventors: Wenjie DENG, William H. L. CHANG, Dai D. TONG
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Patent number: 9615725Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other by using tabs and grooves, creating a sealed and tamper-evident housing without the use of externally exposed fasteners. A tool for attaching the two parts and a method of its use are also provided.Type: GrantFiled: March 4, 2014Date of Patent: April 11, 2017Assignee: STRYKER CORPORATIONInventors: Wenjie Deng, William H. L. Chang, Dai D. Tong
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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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Publication number: 20140275781Abstract: A housing for an instrument such as an endoscopic camera head is provided. The housing includes at least two parts which are attachable to each other, creating a sealed and tamper-evident housing without the use of externally exposed fasteners.Type: ApplicationFiled: March 4, 2014Publication date: September 18, 2014Inventors: Wenjie DENG, William H. L. CHANG, Dai D. TONG
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Patent number: 8643708Abstract: An image capture unit for use in a medical imaging system can be coupled to an endoscopic camera, an external monitor, and a network. The image capture unit includes a touch-screen display to generate a graphical user interface and to receive associated user inputs. The image capture unit receives live video generated by the endoscopic camera, displays the video on the external monitor and/or the display, and stores the live video. The image capture unit can also store the live video in a remote computer system via the network. The image capture unit further can capture and store still images based on the live video and can store the still images in the remote computer system. “One-touch” network login and storage allows these operations to be performed in response to a single touch by the user.Type: GrantFiled: June 21, 2004Date of Patent: February 4, 2014Assignee: Stryker CorporationInventors: William H. L. Chang, Salmaan Hameed, Amit A. Mahadik, Kiran A. Javadekar, Oretho F. Abello
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Patent number: 8373748Abstract: A control unit is connected to an endoscopic video camera, which is connected to an endoscope. Image data representing an image is received by the control unit from the video camera. Based on a characteristic of the received image which is indicative of a physical characteristic of the endoscope, the endoscope is recognized and/or and the value of a parameter for processing or display of images acquired by the camera is then automatically selected.Type: GrantFiled: December 14, 2005Date of Patent: February 12, 2013Assignee: Stryker CorporationInventors: Chien Mien Pang, Yangpeng Ng, William H. L. Chang, Emmet J. McCarthy, Konstantin Y. Zak
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Patent number: 8115126Abstract: A control arrangement for use in a medical or surgical instrument, which arrangement includes a keypad for providing manual control functions to a user of the instrument, a retainer clip and a sealing member. The keypad and retainer clip are located within an opening formed in the instrument housing, whereby when the retainer clip is assembled to the housing, the retainer clip automatically causes the sealing member to sealingly engage with a corresponding sealing surface defined adjacent the housing opening, without the need for the use of additional sealing agents.Type: GrantFiled: August 11, 2009Date of Patent: February 14, 2012Assignee: Stryker CorporationInventors: Wenjie Deng, William H. L. Chang
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Publication number: 20100069711Abstract: A control arrangement for use in a medical or surgical instrument, which arrangement includes a keypad for providing manual control functions to a user of the instrument, a retainer clip and a sealing member. The keypad and retainer clip are located within an opening formed in the instrument housing, whereby when the retainer clip is assembled to the housing, the retainer clip automatically causes the sealing member to sealingly engage with a corresponding sealing surface defined adjacent the housing opening, without the need for the use of additional sealing agents.Type: ApplicationFiled: August 11, 2009Publication date: March 18, 2010Inventors: Wenjie Deng, William H.L. Chang
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Publication number: 20080140158Abstract: 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 27, 2003Publication date: June 12, 2008Inventors: Andrew J. Hamel, Michael D. Baycura, Michael G. Hilldoerfer, Vasudev Nambakam, Salmaan Hameed, William H. L. Chang