[특허]RF generator system for surgical vessel sealing

[미국특허] RF generator system for surgical vessel sealing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-018/12 H02M-007/48 A61B-018/14 A61B-018/00
출원번호	US-0277979 (2011-10-20)
등록번호	US-9039694 (2015-05-26)
발명자 / 주소	Ross, David Helfer, Joel
출원인 / 주소	JUST RIGHT SURGICAL, LLC
대리인 / 주소	Neugeboren O'Dowd PC
인용정보	피인용 횟수 : 39 인용 특허 : 208

초록 ▼

Systems, methods, and apparatus for providing power to an electrosurgical instrument. In particular, a power supply is disclosed in which non-sinusoidal (e.g., pulsed) constant frequency voltage having a variable amplitude is passed to an LC circuit to produce a quasi-sinusoidal current in the LC circuit. The constant driving frequency can be one half the resonant frequency of the LC circuit allowing the LC circuit to operate as an impedance, and thus limit current spikes and arcing. The frequency and phasing of the driving voltage also enables the LC circuit to discharge energy back into a power provider of the power supply so that energy does not build up in the LC circuit. These features result in less severe current spikes and arcing, as well as reduced cutoff times.

대표청구항 ▼

1. A method of providing power to an electrosurgical instrument comprising: generating a non-sinusoidal driving voltage having a substantially constant driving frequency;providing the non-sinusoidal driving voltage to a series LC circuit having a resonant frequency of substantially twice the substantially constant driving frequency;generating a quasi-sinusoidal current in the series LC circuit from the non-sinusoidal driving voltage; andproviding the quasi-sinusoidal current to an electrical output, wherein the electrical output has a maximum threshold voltage of about 75 Volts, and a maximum threshold current of about 1.8 amperes, and wherein the electrical output is configured for coupling to an electrical input of a bipolar tissue-sealing surgical instrument. 2. The method of claim 1, further comprising, presenting an impedance to the quasi-sinusoidal current in the LC circuit that limits current spikes. 3. The method of claim 1, wherein the non-sinusoidal driving voltage is a pulsed waveform. 4. The method of claim 3, wherein the non-sinusoidal driving voltage is a square wave. 5. The method of claim 4, further comprising discharging substantially all energy stored in the series LC circuit during a time period that occurs once per resonant cycle of the series LC circuit. 6. The method of claim 5, further comprising discharging substantially all energy stored in the series LC circuit during the time period that occurs once per resonant cycle of the series LC circuit so that the quasi-sinusoidal current in the series LC circuit approaches 0 amperes during switching of the square wave. 7. The method of claim 6, wherein the time period is a second half of each half cycle of the square wave. 8. The method of claim 1, wherein the non-sinusoidal driving voltage is generated by a power provider, and the method further comprising periodically discharging the series LC circuit by returning energy to the power provider. 9. The method of claim 1, wherein the generating is performed via a constant power mode of a power source to maintain a desired power. 10. The method of claim 1, further comprising absorbing in a power source substantially all energy stored in the series LC circuit during a period of time once per resonant cycle of the series LC circuit and resupplying the substantially all energy back to the series LC circuit. 11. A power supply for an electrosurgical instrument comprising: a power provider configured to provide a non-sinusoidal voltage at a substantially constant driving frequency and a variable amplitude;a series LC circuit configured to receive the non-sinusoidal voltage and provide a quasi-sinusoidal current, and wherein the resonant frequency of the series LC circuit is substantially twice that of the substantially constant driving frequency; andan electrical output configured to provide the quasi-sinusoidal current to a bipolar tissue-sealing electrosurgical instrument; whereinthe series LC circuit is further configured to present an impedance to the quasi-sinusoidal current in the series LC circuit that limits current spikes and voltage transient spikes during load fluctuations. 12. The power supply of claim 11, wherein the power supply includes a power source in series with a pulse generator. 13. The power supply of claim 12, wherein the power source includes a buck-boost converter configured to provide and receive DC current to and from the pulse generator, where the amplitude of the DC current controls the variable amplitude of the power provider. 14. The power supply of claim 13, wherein the pulse generator includes an h-bridge for receiving and providing the DC current from and to the buck-boost converter via a DC bus, and providing pulsed voltage to the series LC circuit at the substantially constant driving frequency. 15. The power supply of claim 14, wherein the pulsed voltage is a square wave. 16. The power supply of claim 15, wherein: energy passes from the DC bus to the h-bridge and to the series LC circuit during a first half of each pulse of the square wave; andenergy passes from the series LC circuit to the h-bridge to the DC bus during a second half of each pulse of the square wave. 17. The power supply of claim 16, wherein the series LC circuit presents an impedance that limits current spikes in the quasi-sinusoidal current. 18. The power supply of claim 16, wherein the series LC circuit discharges substantially all energy stored therein to the DC bus during the second half of each pulse of the square wave. 19. The power supply of claim 11, wherein the power provider operates in a constant power mode to maintain a desired power. 20. The power supply of claim 11, wherein the non-sinusoidal voltage is a pulsed voltage. 21. The power supply of claim 11, wherein the power provider absorbs substantially all energy stored in the series LC circuit during a period of time once per resonant cycle of the series LC circuit and resupplies the substantially all energy back to the series LC circuit.

이 특허에 인용된 특허 (208) 인용/피인용 타임라인 분석

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Goble, Coliin C. O.; Batchelor, Kester J.; Marshall, Mark G., Surgical Instrument.
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Goble,Coliin C. O., Surgical instrument.
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Latterell,Scott T.; Wahnschaffe,Douglas S.; Sanders,Scott R.; Goble,Nigel Mark; Goble,Colin Charles Owen, Surgical instrument.
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Marshall, Mark George; Goble, Colin Charles Owen, Surgical instrument.
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Kolata Ronald J. ; Thompson Bennie ; Bertin Jason C., Surgical instrument and method for endoscopic tissue dissection.
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Rydell Mark A., Surgical scissors with bipolar coagulation feature.
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Rydell Mark A. (Golden Valley MN), Surgical scissors with bipolar coagulation feature.
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Parins David J. ; Swanstrom Lee L., Surgical scissors with bipolar distal electrodes.
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Goble,Colin Charles Owen; Batchelor,Kester J.; Marshall,Mark G., Surgical system.
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Truckai, Csaba; Shadduck, John H.; Strul, Bruno, Surgical system for applying ultrasonic energy to tissue.
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Williamson ; IV Warren P. ; Yates David C., Surgical tissue treating device with locking mechanism.
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Williamson ; IV Warren P. ; Yates David C., Surgical tissue treating device with locking mechanism.
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Orszulak, James H.; McPherson, James W., System and method for generating radio frequency energy.
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Mulier Peter M. J. ; Hoey Michael F., Tissue sealing electrosurgery device and methods of sealing tissue.
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Mulier, Peter M. J.; Hoey, Michael F., Tissue sealing electrosurgery device and methods of sealing tissue.
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Mulier, Peter M. J.; Hoey, Michael F., Tissue sealing electrosurgery device and methods of sealing tissue.
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Mulier, Peter M. J.; Hoey, Michael F., Tissue sealing electrosurgery device and methods of sealing tissue.
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Mulier, Peter M. J.; Hoey, Michael F., Tissue sealing electrosurgery device and methods of sealing tissue.
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Peter M. J. Mulier ; Michael F. Hoey, Tissue sealing electrosurgery device and methods of sealing tissue.
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Peter M. J. Mulier ; Michael F. Hoey, Tissue sealing electrosurgery device and methods of sealing tissue.
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Brommersma, Pieter, Two-electrode endoscopic implement.
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Stasz Peter (Moundsview MN), Ultrasonically enhanced RF ablation catheter.
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Buysse Steven P. ; Kennedy Jenifer S. ; Lands Michael J. ; Loeffler Donald R. ; Lukianow S. Wade ; Ryan Thomas P., Vascular tissue sealing pressure control.
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Buysse Steven P. ; Kennedy Jenifer S. ; Lands Michael J. ; Loeffler Donald R. ; Lukianow S. Wade ; Ryan Thomas P., Vascular tissue sealing pressure control and method.
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Hess, Christopher J.; Clem, Michael F.; Knight, Gary W.; Jambor, Kristin L.; Long, Gary L., Vessel harvesting retractor with bilateral electrosurgical ligation.
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Hess, Christopher J.; Clem, Michael F.; Knight, Gary W.; Nobis, Rudolph H.; Schulze, Dale R., Vessel harvesting retractor with electrosurgical plunger.
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Hess, Christopher J.; Clem, Michael F.; Knight, Gary W.; Nobis, Rudolph H.; Schulze, Dale R., Vessel harvesting retractor with integral electrosurgical clamping elements.
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Tetzlaff,Philip M.; Cunningham,James S.; Moses,Michael C.; Smith,Roger F.; Johnson,Kristin D.; Romero,Paul R., Vessel sealing forceps with disposable electrodes.
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Johnson, Kristin D.; Ehr, Chris J.; Arts, Gene H., Vessel sealing instrument.
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Johnson,Kristin D.; Ehr,Chris J.; Arts,Gene H., Vessel sealing instrument.
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Johnson,Kristin D.; Ehr,Chris J.; Arts,Gene H., Vessel sealing instrument.
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Nguyen,Lap P.; Buysse,Steven P.; Schmaltz,Dale F.; Lukianow,Stephen Wade; Lands,Michael J.; Kennedy,Jenifer S.; Lawes,Kate R.; Trimberger,Daniel L.; Mitchell,Mathew E.; Johnson,Kristin D.; Couture,Gary M; Tetzlaff,Philip M., Vessel sealing instrument.
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Tetzlaff, Philip M.; Mihaichuk, Carolyn H.; Kerr, Duane E.; Schechter, Dave A.; Sherman, Jon; Richardson, Ted; Drach, Greg, Vessel sealing instrument.
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Tetzlaff, Philip M.; Mihaichuk, Carolyn H.; Kerr, Duane E.; Schechter, David A.; Sherman, Jon; Richardson, Ted; Drach, Greg, Vessel sealing instrument.
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Steven P. Buysse ; James H. Orszulak ; Robert H. Wham, Vessel sealing system.
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Wham, Robert; Buysse, Steven P.; Orszulak, James H., Vessel sealing system.
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Wham,Robert H.; Buysse,Steven P.; Orszulak,James H., Vessel sealing system.
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Wham,Robert; Buysse,Steven P.; Orszulak,James H., Vessel sealing system.
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Lands, Michael J.; Lukianow, Stephen Wade; Buysse, Steven P., Vessel sealing wave jaw.
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Thompson Richard K. (Aurora CO), Waveform generator for electrosurgical apparatus.
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이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

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Jaworek, Gary S.; Koch, Jr., Robert L.; Auld, Michael D.; Kimsey, John S.; Baber, Daniel L.; Leimbach, Richard L.; Ulrich, Daniel J., Articulatable surgical instruments with conductive pathways for signal communication.
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Shelton, IV, Frederick E., Motor-driven surgical instrument.
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Shelton, IV, Frederick E.; Morgan, Jerome R.; Harris, Jason L.; Beckman, Andrew T.; Baxter, III, Chester O., Power adapter for a surgical instrument.
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Shelton, IV, Frederick E., Staple cartridges for forming staples having differing formed staple heights.
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Swayze, Jeffrey S.; Hueil, Joseph C.; Morgan, Jerome R.; Shelton, IV, Frederick E., Stapling assembly configured to produce different formed staple heights.
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Shelton, IV, Frederick E.; Harris, Jason L., Stapling end effector configured to compensate for an uneven gap between a first jaw and a second jaw.
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Schmid, Katherine J.; Morgan, Jerome R.; Korvick, Donna L.; Shelton, IV, Frederick E., Stapling system comprising an adjunct and a flowable adhesive.
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Shelton, IV, Frederick E.; Baxter, III, Chester O.; Aronhalt, Taylor W.; Young, Joseph E., Stapling system including an actuation system.
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Beckman, Andrew T.; Nalagatla, Anil K.; Hibner, John A.; Shelton, IV, Frederick E., Surgical apparatus configured to assess whether a performance parameter of the surgical apparatus is within an acceptable performance band.
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Beckman, Andrew T.; Nalagatla, Anil K.; Koch, Jr., Robert L.; Hibner, John A.; Shelton, IV, Frederick E., Surgical apparatus configured to track an end-of-life parameter.
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Shelton, IV, Frederick E., Surgical cutting and fastening instrument.
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Shelton, IV, Frederick E.; Swayze, Jeffrey S.; Baxter, III, Chester O., Surgical fastening apparatus with a rotary end effector drive shaft for selective engagement with a motorized drive system.
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Yates, David C.; Huitema, Thomas W.; Shelton, IV, Frederick E., Surgical instrument comprising a control system.
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Parihar, Shailendra K.; Kimsey, John S.; Koch, Jr., Robert L.; Nalagatla, Anil K.; Nguyen, Anthony T., Surgical instrument comprising a gap setting system.
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Overmyer, Mark D.; Auld, Michael D.; Adams, Shane R.; Shelton, IV, Frederick E.; Harris, Jason L., Surgical instrument comprising a lockable battery housing.
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Leimbach, Richard L.; Beckman, Andrew T.; Schultz, Darwin L.; Adams, Shane R., Surgical instrument comprising a rotatable shaft.
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Kerr, Wendy A.; Lytle, IV, Thomas W.; Overmyer, Mark D.; Swensgard, Brett E.; Sackett, Kevin D.; Leimbach, Richard L.; Houser, Kevin L.; Morgan, Jerome R.; Shelton, IV, Frederick E., Surgical instrument system comprising lockable systems.
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Yates, David C.; Shelton, IV, Frederick E.; Giordano, James R., Surgical instrument system for evaluating tissue impedance.
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Adams, Shane R.; Yates, David C.; Shelton, IV, Frederick E.; Harris, Jason L., Surgical shaft assemblies with watertight housings.
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Harris, Jason L.; Morgan, Jerome R.; Zeiner, Mark S.; Shelton, IV, Frederick E., Surgical staple and driver arrangements for staple cartridges.
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Murray, Michael A.; Morgan, Jerome R.; Hess, Christopher J.; Weisenburgh, II, William B.; Zwolinski, Andrew M., Surgical staple cartridge.
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Yates, David C.; Shelton, IV, Frederick E., Surgical stapler having current mirror-based motor control.
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Overmyer, Mark D.; Yates, David C.; Shelton, IV, Frederick E.; Adams, Shane R.; Leimbach, Richard L., Surgical stapler having motor control based on an electrical parameter related to a motor current.
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Shelton, IV, Frederick E.; Setser, Michael E.; Weisenburgh, II, William B., Surgical stapling instrument with lockout features to prevent advancement of a firing assembly unless an unfired surgical staple cartridge is operably mounted in an end effector portion of the instrument.
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Shelton, IV, Frederick E.; Morgan, Jerome R., Surgical stapling instruments with rotatable staple deployment arrangements.
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Shelton, IV, Frederick E.; Harris, Jason L.; Yates, David C., System for controlling articulation forces.
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Shelton, IV, Frederick E.; Harris, Jason L.; Swensgard, Brett E.; Leimbach, Richard L.; Adams, Shane R.; Overmyer, Mark D., Time dependent evaluation of sensor data to determine stability, creep, and viscoelastic elements of measures.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] RF generator system for surgical vessel sealing 원문보기

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이 특허에 인용된 특허 (208) 인용/피인용 타임라인 분석

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[미국특허] RF generator system for surgical vessel sealing 원문보기

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전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허에 인용된 특허 (208) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

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