Method for operating an automated sample workcell

Abstract

A method of operating the automated sample workcell for processing one or more biological samples is presented. The method comprises receiving one or more biological samples. Each biological sample is contained in a sample tube. Each sample tube is a tube type. If a test order was received for at least one of the biological samples, the test order being indicative of one or more first processing steps, the workcell can automatically execute the one or more first processing steps. If the test order was not received, one or more second processing steps can be determined based on the tube type of the sample tube that contains the at least one biological sample and the one or more second processing steps can then be executed.

We claim: 
     
         1 . A method for operating an automated sample workcell for processing one or more biological samples, wherein the workcell comprising a sample input station, the method comprising:
 receiving the one or more biological samples by the sample input station, wherein each biological sample of the one or more biological sample is contained in a sample tube and each sample tube is of a tube type;   determining whether a test order was received for the one or more biological samples;   determining whether each biological sample of the one or more biological sample has a STAT status;   operating the automated sample workcell to automatically execute one or more first processing steps on the biological sample for which a test order was received, wherein the biological samples with STAT status are automatically processed with a higher priority than the biological samples without STAT status, and wherein the test order specifies the one or more first processing steps for the biological sample for which a test order was received;   determining the tube type of a sample tube that contains a biological sample for which a test order was not received;   determining one or more second processing steps for the biological sample for which a test order was not received based on the tube type of the sample tube that contains the a biological sample for which the test order was not received, wherein the tube type specifies the one or more second processing steps for the biological sample for which a test order was not received; and   operating the automated sample workcell to automatically execute the one or more second processing steps on the at least one biological sample for which the test order was not received without delay until the test order is received, wherein the biological samples with STAT status are automatically processed with a higher priority than the biological samples without STAT status.   
     
     
         2 . The method according to  claim 1 , wherein STAT status of the biological sample is determined based on the received test order. 
     
     
         3 . The method according to  claim 1 , wherein STAT status of the biological sample is determined based on an input location of the one or more biological samples received by the sample input station. 
     
     
         4 . The method according to  claim 1 , further comprising,
 transporting at least one received biological sample from the sample input station to one or more lab devices.   
     
     
         5 . The method according to  claim 1 , wherein the tube type of the sample tube is determined by a camera, a RFID tag reader, a 2D or 3D code reader, or combinations thereof. 
     
     
         6 . The method according to  claim 1 , wherein one first request or said first request and at least one second request for receiving the test order are automatically executed, the at least one second request being executed at a moment being selected from the group comprising after a predefined time period after having executed the first request, after having executed the first request and while executing one of the one or more second processing steps, and after having executed one of the one or more second processing steps, wherein the one or more second processing steps comprise a processing step for transporting the at least one biological sample to a buffering station after having finished executing all other second processing steps. 
     
     
         7 . The method of  claim 6 , wherein the execution of the first request is triggered by the receipt of the at least one biological sample. 
     
     
         8 . The method according to  claim 1 , wherein the automated sample workcell comprises at least one centrifuge, wherein if the test order was received, the executed one or more first processing steps comprise at least one centrifugation step to be executed by the at least one centrifuge and if the test order was not received, the executed one or more second processing steps also comprise the at least one centrifugation step. 
     
     
         9 . The method of according to  claim 1 , wherein the automated sample workcell comprises at least one aliquotation station, wherein if the test order was received, the one or more executed first processing steps comprise at least one aliquotation step to be executed on the at least one biological sample by the at least one aliquotation station, and wherein if the test order was not received, the one or more executed second processing steps do not comprise the at least one aliquotation step. 
     
     
         10 . The method of according to  claim 1 , wherein the automated sample workcell comprises at least one decapping and/or recapping station, wherein if the test order was received, the one or more executed first processing steps comprise at least one decapping and/or recapping step to be executed on the at least one biological sample by the at least one decapping and/or recapping station, and wherein if the test order was not received, the one or more executed second processing steps comprise the at least one decapping and/or recapping step. 
     
     
         11 . The method of according to  claim 7 , wherein the one or more second processing steps are a subset of the one or more first processing steps, wherein the test order was not received when the one or more samples are received by the sample workcell, wherein the sample workcell has finished executing the one or more second processing steps, and wherein the method further comprises:
 receiving the test order after having finished executing the one or more second processing steps;   determining one or more outstanding processing steps, the one or more outstanding processing steps comprising all first processing steps not having already been executed as second processing steps; and   executing the one or more outstanding processing steps by the automated sample workcell.   
     
     
         12 . The method according to  claim 7 , wherein the test order was not received when the one or more samples are received by the sample workcell and wherein the method further comprises:
 receiving the test order while the sample workcell is executing the one or more second processing steps or has finished executing the one or more second processing steps;   comparing the second processing steps with the first processing steps indicated by the received test order;   if the comparison returns as result that one or more of the executed second processing steps are not indicated by the test order, automatically detecting the at least one sample as wrongly processed sample; and   submitting an alert message being indicative of the wrongly processed sample and/or transporting the wrongly processed sample to a buffer unit for storing or discarding the sample.   
     
     
         13 . The method of according to  claim 7 , wherein the at least one second request is repeatedly executed. 
     
     
         14 . The method according to  claim 1 , further comprising,
 determining the tube type of the at least one biological sample, wherein executing the one or more second processing steps comprises retrieving a centrifugation program for the determined tube type and executing a centrifugation according to the centrifugation program.   
     
     
         15 . The method according to  claim 14 , wherein determining the tube type is only executed if the test order was not received. 
     
     
         16 . The method according to  claim 1 , wherein the at least one received biological sample comprises a plurality of biological samples, wherein if a test order was received for each sample of the plurality, the biological samples of the plurality are grouped according to their respectively received test orders, each sample group sharing the same respectively received test order, before executing the one or more first processing steps, and wherein if test orders were not received for each of the plurality of biological samples, the biological samples of the plurality are grouped according to the tube type of each respective biological sample, each sample group sharing the same respective tube type, before executing the one or more second processing steps. 
     
     
         17 . The method according to  claim 1 , wherein determining the tube type of a sample tube that contains a biological sample for which a test order was not received comprises automatically detecting the tube type of whenever the one or more biological samples is loaded into the automated sample workcell. 
     
     
         18 . The method according to  claim 1 , wherein determining the tube type comprises detecting a tube type label, a cap color, a cap dimension, a tube color, a tube dimension, or combinations thereof. 
     
     
         19 . The method of  claim 1 , wherein determining the tube type comprises analyzing one or more of the features selected from the group consisting of a color of the tube, a color of the tube cap, a dimension of the tube, a dimension of the tube cap and a tube type label. 
     
     
         20 . The method of  claim 1 , wherein the one or more biological samples comprises whole blood.