IP Library Granted Patent US 11,224,406
Granted Patent B2
US 11,224,406 · App. 15/450,222 · Granted Jan 18, 2022

Ultrasound diagnosis apparatus and ultrasound probe maintenance apparatus

Inventor: Fuminori Fujita (Nasushiobara, JP)
Assignee: Canon Medical Systems Corporation
A61B8/4444A61B8/14A61B8/461A61B8/488A61B8/5207A61B8/54A61B8/58
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Quick Facts
Patent No.
US 11,224,406
App. No.
15/450,222
Granted
Jan 18, 2022
Kind
B2
Abstract

According to one embodiment, an ultrasound diagnosis apparatus includes a storage, a comparison function, and an evaluation function. The storage is provided in an ultrasound probe, and stores, in advance, an initial value of transmitting/receiving sensitivity measured with respect to each channel, of the ultrasound probe. The comparison function compares transmitting/receiving sensitivity newly measured with the initial value. The evaluation function evaluates the degree of the deterioration of the ultrasound probe based on a comparison result and a predetermined threshold value.

Claims (60)

1. An ultrasound diagnosis apparatus, comprising:

a main apparatus including processing circuitry; and

an ultrasound probe connected to the main apparatus and including a storage;

wherein

the storage is configured to store an initial value of transmitting/receiving sensitivity measured in advance with respect to each channel of the ultrasound probe, measuring-device information, and measurement conditions having been used to measure the initial value of the transmitting/receiving sensitivity, the measuring-device information being for allowing identification of a measuring device having measured the initial value, the measurement conditions being for measuring the transmitting/receiving sensitivity with respect to each channel of the ultrasound probe for the purpose of evaluating a degree of deterioration of the ultrasound probe; and

the processing circuitry is configured to:

read the stored measurement conditions from the storage;

newly measure transmitting/receiving sensitivity based on the measurement conditions that have been used to measure the initial value of the transmitting/receiving sensitivity;

compare the initial value with the newly measured transmitting/receiving sensitivity;

evaluate the degree of deterioration of the ultrasound probe based on a predetermined threshold value and a result of the comparison of the initial value and the newly measured transmitting/receiving sensitivity;

read the stored measuring-device information from the storage;

compare the read measuring-device information and measuring-device information of the main apparatus connected to the ultrasound probe at a time of a maintenance checkup; and

determine from a result of the comparison whether to correct the measurement conditions.

2. The ultrasound diagnosis apparatus of claim 1 , wherein the transmitting/receiving sensitivity includes a radio frequency (RF) signal and an amplitude value with respect to each channel of the ultrasound probe.

3. The ultrasound diagnosis apparatus of claim 1 , wherein the predetermined threshold value is determined in advance for each model of the ultrasound probe.

4. The ultrasound diagnosis apparatus of claim 1 , wherein the measurement conditions include at least one of drive voltage, drive frequency, gain, number of channels, drive time, probe noise data, and a variation correction value for each transmitting/receiving board.

5. The ultrasound diagnosis apparatus of claim 4 , wherein the processing circuitry is further configured to subtract the probe noise data from an RF signal of the ultrasound probe to obtain surface reflected wave of the ultrasound probe, and obtain at least one of the initial value and the newly measured transmitting/receiving sensitivity based on the surface reflected wave.

6. The ultrasound diagnosis apparatus of claim 1 , further comprising a display configured to display the result of the comparison.

7. The ultrasound diagnosis apparatus of claim 1 , wherein

the processing circuitry is further configured to:

determine whether the number of channels having the transmitting/receiving sensitivity of below a threshold value exceeds a predefined value, and

determine a pass or a fail for the transmitting/receiving sensitivity on a basis of a result of the channel-number determination.

8. The ultrasound diagnosis apparatus of claim 1 , comprising wherein

the processing circuitry is further configured to:

automatically perform management measurement of the transmitting/receiving sensitivity of the ultrasound probe at certain time intervals to check deterioration of the ultrasound probe,

read the stored measurement conditions from the storage at the time of performing the management measurement,

newly measure transmitting/receiving sensitivity based on the measurement conditions that have been used to measure the initial value of the transmitting/receiving sensitivity,

compare the initial value with the newly measured transmitting/receiving sensitivity, and

evaluate a degree of deterioration of the ultrasound probe based on a predetermined threshold value and a result of the comparison of the initial value and the newly measured transmitting/receiving sensitivity.

9. The ultrasound probe maintenance apparatus of claim 1 , wherein

the processing circuitry is further configured to:

measure the transmitting/receiving sensitivity for evaluating the degree of deterioration and the initial value of the transmitting/receiving sensitivity, and

for measuring the initial value, cause a result of pass/fail determination to be stored in the storage.

10. An ultrasound probe maintenance apparatus, comprising:

an ultrasound probe; and

processing circuitry configured to:

read an initial value of transmitting/receiving sensitivity measured with respect to each channel of the ultrasound probe from a storage of the ultrasound probe;

read measurement conditions having been used to measure the initial value of the transmitting/receiving sensitivity from the storage, the measurement conditions being for measuring the transmitting/receiving sensitivity with respect to each channel of the ultrasound probe for the purpose of evaluating a degree of deterioration of the ultrasound probe;

newly measure transmitting/receiving sensitivity based on the measurement conditions that have been used to measure the initial value of the transmitting/receiving sensitivity;

compare the initial value with the newly measured transmitting/receiving sensitivity;

evaluate a degree of deterioration of the ultrasound probe based on a predetermined threshold value and a result of the comparison of the initial value and the newly measured transmitting/receiving sensitivity;

read measuring-device information from the storage of the ultrasound probe, the measuring-device information being for allowing identification of a measuring device having measured the initial value;

compare the read measuring-device information and measuring-device information of a main apparatus connected to the ultrasound probe at a time of a maintenance checkup; and

determine from a result of the comparison whether to correct the measurement conditions.

11. The ultrasound probe maintenance apparatus of claim 10 , wherein

The processing circuitry is further configured to:

determine whether the number of channels having the transmitting/receiving sensitivity of below a threshold value exceeds a predefined value, and

determine a pass or a fail for the transmitting/receiving sensitivity on a basis of a result of the channel-number determination.

12. The ultrasound probe maintenance apparatus of claim 10 , wherein

the processing circuitry is further configured to:

automatically perform management measurement of transmitting/receiving sensitivity of the ultrasound probe at certain time intervals to check deterioration of the ultrasound probe,

read an initial value of transmitting/receiving sensitivity measured with respect to each channel of the ultrasound probe from a storage of the ultrasound probe at the time of performing the management measurement,

read measurement conditions having been used to measure the initial value of the transmitting/receiving sensitivity from the storage, the measurement conditions being for measuring the transmitting/receiving sensitivity with respect to each channel of the ultrasound probe,

newly measure transmitting/receiving sensitivity based on the measurement conditions that have been used to measure the initial value of the transmitting/receiving sensitivity,

compare the initial value with the newly measured transmitting/receiving sensitivity, and

evaluate a degree of deterioration of the ultrasound probe based on a predetermined threshold value and a result of the comparison of the initial value and the newly measured transmitting/receiving sensitivity.

13. The ultrasound probe maintenance apparatus of claim 10 , wherein

the processing circuitry is further configured to:

measure the transmitting/receiving sensitivity for evaluating the degree of deterioration and the initial value of the transmitting/receiving sensitivity, and

for measuring the initial value, cause a result of pass/fail determination to be stored in the storage.

Assignments (2)
CHANGE OF NAME Recorded Jul 26, 2019
From: TOSHIBA MEDICAL SYSTEMS CORPORATION
To: CANON MEDICAL SYSTEMS CORPORATION
Reel/Frame 049879/0342 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2017
From: FUJITA, FUMINORI
To: TOSHIBA MEDICAL SYSTEMS CORPORATION
Reel/Frame 041472/0506 →
Priority Claims (1)
JP JP2016-077914 · Apr 8, 2016 · national
Continuity (1)
Related Publication 20170290567A1 · Oct 12, 2017