IP Library Granted Patent US 10,297,414
Granted Patent B2
US 10,297,414 · App. 15/271,041 · Granted May 21, 2019

X-ray tube devices and methods for imaging systems

Inventors: Michael Meiler (Draper, UT); Inwoo Yoon (South Jordan, UT); Christopher Lewis (Kaysville, UT)
Assignee: VAREX IMAGING CORPORATION
H01J35/025A61B6/4494H01J35/06H01J35/08H01J35/14A61B6/032
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Quick Facts
Patent No.
US 10,297,414
App. No.
15/271,041
Granted
May 21, 2019
Kind
B2
Abstract

An X-ray tube may include a housing, a cathode, an anode, and a tube auxiliary unit or an authentication module. The cathode and the anode are positioned within the housing. The cathode and the anode are spaced apart such that a target surface of the anode is positioned to receive electrons emitted by the cathode. The tube auxiliary unit may be coupled to the housing. The tube auxiliary unit may include X-ray tube data including tube calibration data based on parameters of the X-ray tube. The authentication module may be configured to authenticate the X-ray tube with a tube control unit.

Claims (26)

1. An X-ray tube comprising:

a housing;

a cathode and an anode positioned within the housing, the cathode and the anode spaced apart such that a target surface of the anode is positioned to receive electrons emitted by the cathode; and

a tube auxiliary unit coupled to the housing, the tube auxiliary unit comprising X-ray tube data including tube calibration data based on parameters of the X-ray tube.

2. The X-ray tube of claim 1 , wherein the tube auxiliary unit is permanently coupled to the housing.

3. The X-ray tube of claim 1 , the X-ray tube data further comprising tube manufacture data including at least one of: serial number, part number, model number, manufacturing date, manufacturing location, country of origin, application code version, and bootloader version.

4. The X-ray tube of claim 1 , wherein the tube calibration data is based on parameters tested during manufacture of the X-ray tube.

5. The X-ray tube of claim 1 , wherein the tube auxiliary unit is configured to log tube operating data, wherein at least a portion of the tube operating data is obtained during operation of the X-ray tube.

6. The X-ray tube of claim 5 , wherein the tube operating data includes at least one of: X-ray tube electrical current, X-ray tube electrical voltage, emitter electrical current, stator electrical current, coolant flow rate, exposure duration, anode rotational speed, anode rate of acceleration, gantry vibration, X-ray tube vibration, gantry speed, gantry load amount, evacuated enclosure pressure and temperature.

7. The X-ray tube of claim 5 , wherein the tube auxiliary unit is further configured to generate, from the tube operating data, a tube diagnostic metric comprising one or more of: an end-of-life prediction, remaining bearing life, remaining anode life, remaining emitter life and a vacuum failure indicator.

8. The X-ray tube of claim 1 , the tube auxiliary unit further comprising an authentication module that is operatively connected to a tube control unit configured to control electron beam steering and focusing components of the X-ray tube.

9. The X-ray tube of claim 8 , wherein the authentication module is configured to authenticate the X-ray tube with the tube control unit.

10. The X-ray tube of claim 8 , wherein the authentication module comprises authentication data, wherein the authentication data indicates whether the X-ray tube or the tube auxiliary unit is functionally matched with the tube control unit.

11. The X-ray tube of claim 1 , the tube auxiliary unit operatively connected to one or more of: a timer, a speed sensor, an accelerometer, a position sensor, a temperature sensor, a current sensor, a voltage sensor, a pressure sensor; and a flow sensor.

12. The X-ray tube of claim 1 , further comprising a communication link to transmit information between the tube auxiliary unit and a computer system remote from the X-ray tube.

13. A method comprising:

receiving X-ray tube data at a tube control unit from a tube auxiliary unit, the tube auxiliary unit coupled to a housing of an X-ray tube, wherein the received X-ray tube data comprises tube calibration data; and

combining the X-ray tube data with tube control unit data stored on the tube control unit, wherein the tube control unit data comprises focusing and steering calibration data to control focusing and steering components of the X-ray tube.

14. The method of claim 13 , wherein the received X-ray tube data comprises encrypted data, the method further comprising decrypting, at the tube control unit, the encrypted data.

15. The method of claim 13 , further comprising authenticating, at the tube control unit, the X-ray tube.

16. The method of claim 13 , further comprising authenticating, at the tube auxiliary unit, the tube control unit.

17. The method of claim 13 , the received X-ray tube data further comprising tube operating data obtained during operation of the X-ray tube.

18. The method of claim 17 , wherein the tube operating data is obtained by one or more sensors operatively coupled to the tube auxiliary unit, further comprising logging the tube operating data in a memory of the tube auxiliary unit.

19. The method of claim 18 , wherein the tube operating data includes at least one of: X-ray tube electrical current, X-ray tube electrical voltage, emitter electrical current, stator electrical current, coolant flow rate, exposure duration, anode rotational speed, anode rate of acceleration, gantry vibration, X-ray tube vibration, gantry speed, gantry load amount, evacuated enclosure pressure and temperature.

20. The method of claim 17 , further comprising generating, at the tube control unit, a tube diagnostic metric based on the received tube operating data.

21. The method of claim 20 , wherein the tube diagnostic metric comprises one or more of: remaining bearing life, remaining anode life, remaining emitter life and a vacuum failure indicator.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Mar 13, 2026
From: ZIONS BANCORPORATION, N.A. DBA ZIONS FIRST NATIONAL BANK
To: VAREX IMAGING CORPORATION
Reel/Frame 075081/0623 →
SECURITY INTEREST Recorded Mar 13, 2026
From: VAREX IMAGING CORPORATION
To: ZIONS BANCORPORATION, N.A. DBA ZIONS FIRST NATIONAL BANK
Reel/Frame 075080/0934 →
RELEASE OF SECURITY INTEREST Recorded Mar 29, 2024
From: BANK OF AMERICA, N.A.
To: VAREX IMAGING CORPORATION
Reel/Frame 066950/0001 →
SECURITY INTEREST Recorded Mar 29, 2024
From: VAREX IMAGING CORPORATION
To: ZIONS BANCORPORATION, N.A. DBA ZIONS FIRST NATIONAL BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 066949/0657 →
SECURITY INTEREST Recorded Oct 1, 2020
From: VAREX IMAGING CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 054240/0123 →
SECURITY INTEREST Recorded Sep 30, 2020
From: VAREX IMAGING CORPORATION
To: BANK OF AMERICA, N.A., AS AGENT
Reel/Frame 053945/0137 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 041124 FRAME 0555. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 1, 2017
From: VARIAN MEDICAL SYSTEMS, INC.
To: VAREX IMAGING CORPORATION
Reel/Frame 041608/0124 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2017
From: VARIAN MEDICAL SYSTEMS, INC.
To: VAREX IMAGING CORPORATION
Reel/Frame 041124/0555 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2016
From: MEILER, MICHAEL; YOON, INWOO; LEWIS, CHRISTOPHER
To: VARIAN MEDICAL SYSTEMS, INC.
Reel/Frame 039805/0577 →
Continuity (1)
Related Publication 20180082818A1 · Mar 22, 2018