System and method for controlling thermal cycler modules
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12P-019/34
G01N-035/04
G01N-035/10
G01N-035/00
B01L-003/00
B01L-007/00
C12Q-003/00
G05B-013/02
G01F-023/24
G01F-023/26
G06F-019/10
C12M-001/34
C12Q-001/68
G01N-001/38
G01N-001/31
B01L-003/02
출원번호
US-0747952
(2013-01-23)
등록번호
US-9140715
(2015-09-22)
발명자
/ 주소
Wilson, Brian D.
Davis, Matthew S.
Johnson, Alan N.
Maurer, Garrick A.
출원인 / 주소
Beckman Coulter, Inc.
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
3인용 특허 :
218
초록▼
Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locat
Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.
대표청구항▼
1. A method for operating thermal cycler modules, the method comprising: obtaining a predetermined temperature vs. time profile of a sample in a selected thermal cycler module in an array of thermal cycler modules, the array of thermal cycler modules comprising the selected thermal cycler module and
1. A method for operating thermal cycler modules, the method comprising: obtaining a predetermined temperature vs. time profile of a sample in a selected thermal cycler module in an array of thermal cycler modules, the array of thermal cycler modules comprising the selected thermal cycler module and a set of thermal cycler modules; andcontrolling, by a processor, all of the thermal cycler modules in the array of thermal cycler modules so that temperature vs. time profiles for samples in the thermal cycler modules in the array match the predetermined temperature vs. time profile, each of the thermal cycler modules in the array of thermal cycler modules being controlled in response to a source of variation between the thermal cycler modules in the array. 2. The method of claim 1 wherein the source of variation comprises an ambient temperature of the thermal cycler module, or a physical characteristic of the thermal cycler module. 3. The method of claim 1 wherein controlling the thermal cycler modules comprises, for each module, adjusting ha, which is a thin film heater output at an ambient temperature (° C/second) and k, which is a rate of heat transfer, using the following equation: dB/dt=ha+k(Ta−B(t)),wheredB/dt=change in block temp in degrees per second,Ta=ambient temperature (° C.),ha=thin film heater output at ambient temperature (° C./second),k=rate of heat transfer, andB(t)=the temperature of the thermal block at a given time t. 4. The method of claim 3 wherein B(t)=(B(0)−(ha/k)−Ta)ekt+(ha/k)+Ta, where B(0)=starting block temperature at time=0. 5. The method of claim 3 wherein k is adjusted using a blower. 6. A method of driving a first thermal cycler module in a predetermined thermal profile (B(t)), the first thermal cycler module including a thermal block, a heater thermally coupled to the thermal block, and a blower to direct air to the thermal block, the method comprising: determining a rate of change of the thermal block temperature with respect to time (dB/dt) as a function of heater output (ha), of blower heat transfer (k), and of ambient temperature (Ta);measuring the thermal block temperature;measuring the ambient temperature at the first thermal cycler module; andadjusting, by a processor, one of the heater output and the blower heat transfer according to a modeled relationship of: dB/dt=ha+k(Ta−B(t)). 7. The method of claim 6 wherein the step of adjusting one of the heater output and the blower heat transfer includes adjusting the heater output and the blower heat transfer. 8. The method of claim 7 wherein the first thermal cycler module includes the processor and a memory, the processor sensing the thermal block temperature and the ambient temperature, and the memory including a representation of the predetermined thermal profile and a representation of the modeled relationship. 9. The method of claim 8 wherein the processor controls the blower heat transfer by adjusting the power supplied to the blower. 10. The method of claim 9 wherein the same predetermined thermal profile is determined through evaluation of the rate of change of the thermal block temperature with respect to time as a function of heater output, of blower heat transfer, and of ambient temperature of a plurality of thermal cycler modules and selection of a thermal profile achievable by each of the plurality of thermal cycler modules as the predetermined profile. 11. The method of claim 10 wherein the response of the first thermal cycler module matches the response of a second thermal cycler module. 12. The method of claim 11 wherein first thermal cycler module is disposed adjacent the second thermal cycler module. 13. The method of claim 1 wherein the thermal cycler module comprises a blower to cool the sample and a thin film heater to heat the sample. 14. The method of claim 1 wherein the selected thermal cycler module comprises a thermal block holding a reaction vessel containing the sample, and wherein the method further comprises, prior to obtaining the predetermined temperature vs. time profile: performing a thermal cycling process on the sample in the reaction vessel using the selected thermal cycler module. 15. The method of claim 14 wherein the thermal cycling process cycles the temperature of the thermal block between about 70° C. and about 95° C. 16. A system comprising: an array of thermal cycler modules;a processor; anda computer readable medium coupled to the processor, the computer readable medium comprising code, executable by the processor, to implement a method comprising obtaining a predetermined temperature vs. time profile of a sample in a selected thermal cycler module in the array of thermal cycler modules, the array of thermal cycler modules comprising the selected thermal cycler module and a set of thermal cycler modules, andcontrolling all of the thermal cycler modules in the array of thermal cycler modules so that temperature vs. time profiles for samples in the thermal cycler modules in the array match the predetermined temperature vs. time profile, each of the thermal cycler modules in the array of thermal cycler modules being controlled in response to a source of variation between the thermal cycler modules in the array. 17. The system of claim 16 wherein controlling the thermal cycler modules comprises, for each module, adjusting ha, which is a thin film heater output at an ambient temperature (° C./second) and k, which is a rate of heat transfer, using the following equation: dB/dt=ha+k(Ta−B(t)),wheredB/dt=change in block temp in degrees per second,Ta=ambient temperature (° C.),ha=thin film heater output at ambient temperature (° C./second),k=rate of heat transfer, andB(t)=the temperature of the thermal block at a given time t. 18. The system of claim 16 wherein each of the thermal cycler modules in the array of thermal cycler modules comprises a blower and a heater. 19. A system comprising: a thermal cycler module comprising a thermal block, a heater thermally coupled to the thermal block, and a blower to direct air to the thermal block;a processor; anda computer readable medium, the computer readable medium comprising code, executable by the processor, to implement a method comprising determining a rate of change of the thermal block temperature with respect to time (dB/dt) as a function of heater output (ha), of blower heat transfer (k), and of ambient temperature (Ta),measuring the thermal block temperature,measuring the ambient temperature at the first thermal cycler module, andadjusting one of the heater output and the blower heat transfer according to a modeled relationship of: dB/dt=ha+k(Ta−B(t)). 20. The system of claim 19 wherein the step of adjusting one of the heater output and the blower heat transfer includes adjusting the heater output and the blower heat transfer. 21. A method comprising: obtaining a predetermined temperature ramping time; andcontrolling, by a processor, thermal cycler modules in a set of thermal cycler modules so that the temperature ramping time for each thermal cycler module in the set of thermal cycler modules match the predetermined temperature ramping time, each of the thermal cycler modules in the set of thermal cycler modules being controlled in response to a source of variation between the thermal cycler modules in the set. 22. The method of claim 21 wherein the thermal cycler modules comprise heaters, and wherein the processor controls the heaters in the thermal cycler modules during controlling. 23. A system comprising: an array of thermal cycler modules including a set of thermal cycler modules;a processor; anda computer readable medium coupled to the processor, the computer readable medium comprising code, executable by the processor for implementing a method comprisingobtaining a predetermined temperature ramping time, andcontrolling the thermal cycler modules in the set of thermal cycler modules so that the temperature ramping time for each thermal cycler module in the set matches the predetermined temperature ramping time, each of the thermal cycler modules in the set of thermal cycler modules being controlled in response to a source of variation between the thermal cycler modules in the set. 24. The system of claim 23 wherein the thermal cycler modules comprise heaters, and wherein the processor controls the heaters in the thermal cycler modules during controlling.
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