走査ヘッド内に撮像素子位置検出器を備えた食道越し超音波プローブ - GE Medical Systems Global Technology Company LLC

Title:

走査ヘッド内に撮像素子位置検出器を備えた食道越し超音波プローブ

Document Type and Number:

Japanese Patent JP4209124

Kind Code:

B2

Abstract:

A system and method for measuring a position of an imaging element (436) located within a scan head (120) of an imaging probe, such as transesophageal ultrasound probe (100), is provided. The imaging probe may be used in a medical imaging system and/or a three-dimensional imaging system. The probe includes an articulating portion (115) having a scan head (120). The scan head (120) includes an imaging element (436), such as a transducer, and a position sensor positioned within the scan head (120). Preferably, the position sensor is connected to the imaging element (436) via an axle (510). Therefore, the rotation of the position sensor is synchronized to the rotation of the imaging element (436). The location of the position sensor within the imaging element (436) provides accurate measurement of the position of the imaging element (436). The position sensor preferably includes a code disk having apertures (530) and a system of light emitters (524, 528) and detectors (514, 518). As the code disk rotates in synchronization with the imaging element (436), the pattern of detection of light through the apertures (530) measures the position of the imaging element (436). Various alternative position sensors, such as potentiometers, may be utilized within the scan head (120) of the probe. The probe also includes a control handle (130) having imaging and articulation controls.

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Inventors:

Doug Jordfaldo
Chiaya Chen
John Ronander
Jonathan E. Snyder
Joseph E. Peel, Jr.
Carl Johnsberg

Application Number:

JP2002071538A

Publication Date:

January 14, 2009

Filing Date:

March 15, 2002

Export Citation:

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Assignee:

GE Medical Systems Global Technology Company LLC

International Classes:

G01B7/00; A61B8/12; G01B11/00; G01B7/30; G01B17/00; G01B17/06; G01B21/00

Domestic Patent References:

JP5272989A
JP10179588A
JP5051313U
JP10108867A
JP2000201935A
JP5161653A

Attorney, Agent or Firm:

Kenichi Matsumoto
Hirokazu Ogura
Toshihisa Kurokawa

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