Portable dual-energy radiographic X-ray perihpheral bone density and imaging systems and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01B-015/02
A61B-006/00
출원번호
US-0917945
(2013-06-14)
등록번호
US-9044186
(2015-06-02)
발명자
/ 주소
Ma, George W.
출원인 / 주소
Ma, George W.
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
0인용 특허 :
76
초록▼
Devices, tools, systems and methods for X-ray bone density measurement and imaging for radiography, fluoroscopy and related procedures. Portable, efficient peripheral bone density measurement and/or high resolution imaging and/or small field digital radiography of bone and other tissue, including ti
Devices, tools, systems and methods for X-ray bone density measurement and imaging for radiography, fluoroscopy and related procedures. Portable, efficient peripheral bone density measurement and/or high resolution imaging and/or small field digital radiography of bone and other tissue, including tissue in the peripheral skeletal system, such as the arm, forearm, leg, hand and/or foot.
대표청구항▼
1. A portable, dual-energy radiographic x-ray imaging and bone density measuring system, comprising: an X-ray source configured to emit an X-ray beam through a filter positioning mechanism, the filter positioning mechanism comprising a high energy filter, a low energy filter, and a shutter configure
1. A portable, dual-energy radiographic x-ray imaging and bone density measuring system, comprising: an X-ray source configured to emit an X-ray beam through a filter positioning mechanism, the filter positioning mechanism comprising a high energy filter, a low energy filter, and a shutter configured to block transmission of the X-ray beam;an X-ray imaging detector;a housing positioning the X-ray source at a distance from the X-ray imaging detector, wherein the housing is configured for positioning a forearm between the X-ray source and the X-ray imaging detector;an embedded system configured to activate the X-ray source and to control the position of the filter positioning mechanism and imaging data acquisition. 2. The system of claim 1, wherein the X-ray source is active for at most 2 seconds per exposure. 3. The system of claim 1, wherein the high energy filter provides a high energy component above 40-50 kV for transmission through the filter positioning mechanism. 4. The system of claim 1, wherein the high energy filter comprises Copper and at least one of the group consisting of Tin and Rhodium. 5. The system of claim 1, wherein the low energy filter limits transmission of energy below 40-50 kV through the filter positioning mechanism. 6. The system of claim 1, wherein the low energy filter comprises Aluminum and at least one type of material having a K-edge absorption at least 40 kV. 7. The system of claim 1, wherein the low energy filter comprises at least one type of material having a K-edge absorption of at least 40 kV is selected from the group consisting of Cerium, Samarium, Gadolinium, and Barium. 8. The system of claim 1, wherein the filter positioning mechanism is actuated by a stepper motor in electric communication with the embedded system. 9. The system of claim 8, wherein the filter positioning mechanism is a filter exchanger configured to be rotatably or linearly actuated by the stepper motor. 10. The system of claim 9, wherein the stepper motor is a high torque and high speed design that enables to switch one position to another in 100 ms or less. 11. The system of claim 1, wherein the embedded system provides high-speed/high bandwidth data transmission configured for transmission of imaging data in less than 100 ms. 12. The system of claim 1, wherein the X-ray imaging detector transmits image data through any one of the group consisting of a Gig-Ethernet and a camera link. 13. The system of claim 1, wherein the embedded system operates the X-ray source at a duty cycle of approximately 1/60, for a one second active pulsed radiation to sixty second inactive period. 14. The system of claim 1, wherein the embedded system chip system operates the X-ray source at a duty cycle for a two second active pulsed radiation to one hundred twenty second inactive period. 15. The system of claim 1, wherein the embedded comprises an operating system configured to process data, control a LCD/touchscreen, manage a power supply, and control a communication from the group consisting of a USB communication and a wireless communication. 16. The system of claim 1, configured as a battery powered device. 17. A method for measuring peripheral bone density, comprising: positioning a forearm of a patient between an X-ray source and a beam detector in an X-ray system, the X-ray source configured to emit an X-ray beam through a filter positioning mechanism, the filter positioning mechanism comprising a first energy filter, a second energy filter, and a shutter configured to block transmission of the X-ray beam;activating an embedded chip in said X-ray system, the embedded chip configured to activate the X-ray source and to control the position of the filter positioning mechanism, wherein said activating the embedded chip comprises: activating the X-ray source for two seconds or less;moving the filter positioning mechanism from a shuttered position to a first energy position with said first energy filter;acquiring first energy data;moving the filter positioning mechanism from the first energy position to a second energy position with said second energy filter; andacquiring second energy data. 18. A portable, single-energy radiographic x-ray system, comprising: an X-ray monoblock configured to emit an X-ray beam through a filter positioning mechanism, the filter positioning mechanism comprising a high energy filter, a low energy filter, and a shutter configured to block transmission of the X-ray beam;an X-ray imaging detector;an anti-scattering grid between the X-ray monoblock and the X-ray imaging detector;a housing positioning the X-ray source at a distance from the X-ray beam detector, wherein the housing is configured for positioning a portion of a body between the X-ray source and the X-ray beam detector;an embedded system configured to activate the X-ray source and to control the position of the filter positioning mechanism and imaging data acquisition. 19. The system of claim 18, configured for single exposure. 20. The system of claim 18, configured for continued pulse exposure. 21. The system of claim 18, configured as a battery powered device.
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이 특허에 인용된 특허 (76)
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