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Blood flow measurement device and method 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • A61B-010/00
출원번호 US-0636383 (1984-07-31)
발명자 / 주소
  • Albert David E. (McAlester OK)
출원인 / 주소
  • Quinton Instrument Company (Seattle WA 02)
인용정보 피인용 횟수 : 35  인용 특허 : 6

초록

The disclosure relates to systems for measuring blood flow by detecting Doppler shift of ultrasound reflected by blood components moving in a blood vessel. The systems employ electronic techniques for providing accurate tracking of portions of the frequency spectra of Doppler shift signals to determ

대표청구항

An apparatus for measuring instantaneous peak velocity in blood flow through a blood vessel, comprising means for obtaining a Doppler signal having a frequency spectrum determined by Doppler shifting of an ultrasonic signal caused by relative movement of components of the blood in the blood vessel;

이 특허에 인용된 특허 (6)

  1. Roberts Victor C. (London GB2) Sainz Antonio J. (Caracas VEX), Apparatus for transmitting and receiving sound.
  2. White Denis N. (Kingston CAX) Curry George R. (Kingston CAX), Color coded blood flow velocity display equipment.
  3. Karplus Henry H. B. (Hinsdale IL) Raptis Apostolos C. (Downers Grove IL), Doppler flowmeter.
  4. Newhouse Vernon L. (West Lafayette IN) LeCong Phung (West Lafayette IN), Double repetition rate doppler flow measurement system.
  5. Sainz Antonio J. (London GB2) Roberts Victor C. (London GB2), Methods and apparatus for measuring the cross-sectional area of a duct and the volume flow rate of fluid in the duct.
  6. Roberts Richard A. (Boulder CO), System for detecting fat particles in blood.

이 특허를 인용한 특허 (35)

  1. Lebel, Ronald J.; Shahmirian, Varaz; Gord, John C.; Armstrong, John T.; Richert, John D., Ambulatory medical apparatus and method using a telemetry system with predefined reception listening periods.
  2. Pretlow ; III Robert A. (Kirkland WA) Yost William T. (Newport News VA) Cantrell ; Jr. John H. (Yorktown VA), Beat frequency ultrasonic microsphere contrast agent detection system.
  3. Crutchfield, Kevin; Davidson, John; Mozayeni, Robert; Fitall, Simon, Decision support systems and methods for assessing vascular health.
  4. Smith, Leonard, Gain setting in doppler haemodynamic monitors.
  5. Davey Christopher T. ; Sansoucy Michael R. ; McCarthy Matthew N., High flow rate dialysis catheters and related methods.
  6. Davey, Christopher T.; Sansoucy, Michael R.; McCarthy, Matthew N., High flow rate dialysis catheters and related methods.
  7. Davey,Christopher T.; Sansoucy,Michael R.; McCarthy,Matthew N., High flow rate dialysis catheters and related methods.
  8. McCabe Laurence S. ; Langdon Donald R. ; Otsuki Joanne ; Buscaglia David R. ; King Samuel H., Interactive doppler processor and method.
  9. Desmond ; III Joseph P. ; Walls Doug, Medical device with one or more helical coils.
  10. Clayman, Ralph V.; Dassa, Alyssa J.; Fishbein, Christopher; Godshall, Douglas E.; Whitmore, III, Willett F., Medical device with tail(s).
  11. Clayman, Ralph V.; Dassa, Alyssa J.; Fishbein, Christopher; Godshall, Douglas E.; Whitmore, III, Willet F., Medical device with tail(s) for assisting flow of urine.
  12. St. Pierre, Ernest J., Medical stent and related methods.
  13. St. Pierre,Ernest J., Medical stent and related methods.
  14. Bottcher, Benjamin J.; Grasso, Michael, Medical stent with variable coil and related methods.
  15. Bottcher,Benjamin J.; Grasso,Michael, Medical stent with variable coil and related methods.
  16. Haldeman, Paul Craig; Salo, Rodney; Tockman, Bruce; Carlson, Gerrard Merrill, Method and apparatus for catheterization by detecting signals indicating proximity to anatomical features.
  17. Kristoffersen,Kjell; Lie,Glenn Reidar, Method and apparatus for performing CW doppler ultrasound utilizing a 2D matrix array.
  18. Corl Paul D. (Palo Alto CA) Kaiser David (Redwood City CA) Lifshitz Ilan (Haifa ILX), Method and apparatus for processing signal data to form an envelope on line.
  19. Klapper, Ulrich; Emanuel, Harald; Steineke, Caspar, Method of calibrating a partial discharge measuring device.
  20. Klapper, Ulrich; Emanuel, Harald; Steineke, Caspar, Method of locating faults on a cable.
  21. Hudgins Lonnie H. ; Chandraratna Premindra A., Non-invasive acoustic screening device for coronary stenosis.
  22. Homyk, Andrew; Mirov, Russell Norman, Non-invasive flow monitoring.
  23. Mozayeni, B. Robert; Crutchfield, Kevin E.; Davidson, John B.; Fitall, Simon, Precision brain blood flow assessment remotely in real time using nanotechnology ultrasound.
  24. Iaizzo, Paul A.; Laske, Timothy G., System and method for determining location and tissue contact of an implantable medical device within a body.
  25. Iaizzo, Paul A.; Laske, Timothy G.; Choi, Woohyek, System and method for determining tissue contact of an implantable medical device within a body.
  26. Davidson, John; Mozayeni, Robert; Fitall, Simon; Crutchfield, Kevin, Systems and methods for assessing vascular effects of a treatment.
  27. Davidson, John; Mozayeni, Robert; Fitall, Simon; Crutchfield, Kevin, Systems and methods for assessing vascular health.
  28. Crutchfield, Kevin; Mozayeni, Robert; Davidson, John; Fitall, Simon, Systems and methods for investigating blood flow.
  29. Crutchfield,Kevin; Mozayeni,B. Robert; Davidson,John B.; Fitall,Simon; Lall,Rakesh, Systems and methods for investigating intracranial pressure.
  30. Davidson, John; Mozayeni, Robert; Fitall, Simon; Crutchfield, Kevin, Systems and methods for screening for adverse effects of a treatment.
  31. Li, Xiang-Ning, Ultrasonic quantification of valvular regurgitant blood flow.
  32. McWeeney, John O.; Whitmore, III, Willet F.; Rubin, Stephani, Ureteral stent for improved patient comfort.
  33. McWeeney, John O.; Whitmore, III, Willet F.; Rubin, Stephanie, Ureteral stent for improved patient comfort.
  34. McWeeney,John O.; Whitmore, III,Willet F.; Rubin,Stephanie, Ureteral stent for improved patient comfort.
  35. Clayman, Ralph V.; Dassa, Alyssa J.; Fishbein, Christopher; Godshall, Douglas E.; Whitemore, III, Willet F., Ureteral stent with small bladder tail(s).
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