Automated molecular pathology apparatus having independent slide heaters

• US 6,582,962 B1
• Filed: 10/17/2000
• Issued: 06/24/2003
• Est. Priority Date: 02/27/1998
• Status: Expired due to Term

• Current Assignee: Ventana Medical Systems Incorporated (Roche Holding AG)
• Original Assignee: Ventana Medical Systems Incorporated (Roche Holding AG)
• Inventors: Richards, William, Christensen, Kimberly, Lemme, Charles D., Macrea, Ethel R.
• Primary Examiner(s): Warden, Jill
• Assistant Examiner(s): Gordon, Brian R.
• Application Number:
  US09/690,296
• Time in Patent Office: 980 Days
• Field of Search: 436/180, 436/43, 436/46, 436/50, 436/63, 435/6, 435/91.1, 435/91.2, 435/69.1, 435/70.1, 435/303.1, 435/287.2, 422/104, 422/100, 219/385
• US Class Current: 436/46
• CPC Class Codes: G01N 1/30 Staining; Impregnating ; Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis
• CPC Class Codes: G01N 1/31 Apparatus therefor
• CPC Class Codes: G01N 1/312 for samples mounted on planar substrates
• CPC Class Codes: G01N 1/36 Embedding or analogous mounting of samples
• CPC Class Codes: G01N 35/1002 Reagent dispensers
• CPC Class Codes: Y10T 436/11 Automated chemical analysis
• CPC Class Codes: Y10T 436/112499 with sample on test slide
• CPC Class Codes: Y10T 436/115831 Condition or time responsive
• CPC Class Codes: Y10T 436/2575 Volumetric liquid transfer

Abstract

Apparatus and methods for automatically staining or treating multiple tissue samples mounted on microscope slides are provided. Individualized slide temperature control is accomplished by the heating system according to the present invention that has thermal platforms radially mounted to the carousel for heating the slides and sensing the temperature of each. The heating system also permits automated de-waxing if necessary.

Claims

1. In an apparatus for analyzing biological materials comprising a plurality of heating devices supported by a heating device support, each heating device adapted to receive a slide and including a heater and a sensor, and control electronics in communication with the heating devices for receiving data from the sensors of the heating devices and for individually controlling the heaters of each of the heating devices, a method for amplifying a target molecule within tissue samples mounted on slides received by the heating devices comprising the steps of:

denaturing target molecules in the tissue sample by independently controlling the temperature of the heaters;

annealing at least two oligonucleotide primers to the target molecules by independently controlling the temperature of the heaters;

performing polymerase-mediated extension on the annealed oligonucleotide primer-target molecules by independently controlling the temperature of the heaters; and

repeating the steps of denaturing, annealing and performing polymerase-mediated extension at least one time.

2. The method of claim 1 wherein the step of repeating is performed a predetermined number of times.

3. The method of claim 1 wherein the step of denaturing includes controlling the heaters so that the temperature is at least 94°

C.

4. The method of claim 1 wherein the step of annealing includes controlling the heaters so that the temperature is between 37°

C. and 65°

C.

5. The method of claim 1 wherein the step of annealing includes controlling the heaters so that the temperature is approximately 50°

C.

6. The method of claim 1 wherein the step of performing polymerase-mediated extension includes controlling the heaters so that the temperature is between 65°

C. and 75°

C.

7. The method of claim 1 wherein the step of performing polymerase-mediated extension includes controlling the heaters so that the temperature is approximately 70°

C.