Global patent index - EP 0978002 A1

EP 0978002 A1 2000-02-09 - DEVICE AND METHOD FOR SENSING ULTRASOUND SIGNALS REFLECTED AGAINST A FLUID FLOW

Title (en)

DEVICE AND METHOD FOR SENSING ULTRASOUND SIGNALS REFLECTED AGAINST A FLUID FLOW

Title (de)

VORRICHTUNG UND VERFAHREN ZUM ERFASSEN VON AN EINEM FLUIDSTROM REFLEKTIERTEN ULTRASCHALL-SIGNALEN

Title (fr)

DISPOSITIF ET PROCEDE DE DETECTION DE SIGNAUX ULTRASONORES REFLECHIS CONTRE UN FLUX DE FLUIDE

Publication

EP 0978002 A1 (DE)

Application

EP 98921482 A

Priority

  • DE 19716810 A
  • EP 9802392 W

Abstract (en)

[origin: DE19716810A1] The present invention pertains to a device for detection of ultrasound signals reflected against a fluid flow, comprising a sonifier (10) for periodically generating vascular monitoring ultrasound signals to a special ultrasonic probe (12) designed to receive signals reflected inside the vessel against a fluid flow, as well as a signal assessment unit (16, 20) mounted downstream from the sonifier, for preparation and visual presentation of the reflected signal. The signal assessment unit (16, 20) has scanning elements (42) for detecting a given number of consecutive discrete states resulting from the reflected signal during a signal period, as well as sensors (56, 60) for comparing the discrete states of the signal during a number of signal periods and for detecting an embolus or a foreign body in the fluid flow, as a response to changes in the discrete states during said number of signal periods.

IPC 1-7 (main, further and additional classification)

G01S 7/52

IPC 8 full level (invention and additional information)

G01S 7/52 (2006.01); G01S 15/52 (2006.01); G01S 15/89 (2006.01)

CPC (invention and additional information)

G01S 7/52036 (2013.01); G01S 7/52028 (2013.01); G01S 15/52 (2013.01); G01S 15/8979 (2013.01)

Citation (search report)

See references of WO 9848297A1

Designated contracting state (EPC)

AT DE ES FR GB IT

EPO simple patent family

DE 19716810 A1 19981105; DE 19716810 B4 20060427; EP 0978002 A1 20000209; WO 9848297 A1 19981029

INPADOC legal status

2006-01-11 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20051115

2005-06-22 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20050509

2000-02-09 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991122

2000-02-09 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT DE ES FR GB IT