An automatic analyzing apparatus has an analysis section including an immunity analysis unit and a biochemical componential analysis unit. A sample rack which has undergone the immunity componential analysis is horizontally fed by a rack feeding mechanism from a position confronting the inlet of a r
An automatic analyzing apparatus has an analysis section including an immunity analysis unit and a biochemical componential analysis unit. A sample rack which has undergone the immunity componential analysis is horizontally fed by a rack feeding mechanism from a position confronting the inlet of a rack stationing section to a position near the outlet of the rack stationing section, so that the sample rack is directly moved to a return line, while skipping over the rack stationing section, so as to be efficiently returned to the analysis section and subjected to a subsequent biochemical analysis. A sample rack that needs reexamination by an identical analysis unit is also returned in the same efficient way.
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What is claimed is: 1. An automatic analyzing apparatus, comprising: a control section operatively connected so as to control operations of the analyzing apparatus; a transfer line for transferring sample racks; an analysis section, connected to said transfer line by a rack pickup mechanism, for re
What is claimed is: 1. An automatic analyzing apparatus, comprising: a control section operatively connected so as to control operations of the analyzing apparatus; a transfer line for transferring sample racks; an analysis section, connected to said transfer line by a rack pickup mechanism, for receiving sample racks from said transfer line and examining samples extracted from sample vessels accommodated in said sample racks; rack ejection means in said analysis section connected to said transfer line for transferring said sample racks from said analysis section back to said transfer line after extraction of said samples; a rack stationing section connected to said transfer line downstream from said analysis section for stationing sample racks which have a possibility of being subjected to a reexamination; a rack collecting section connected to said rack stationing section for accommodating the sample racks with which the examination has been finished; a return line along which the sample racks that need to be reexamined are returned back to said analysis section, said return line having an inlet for receiving the sample racks from said rack stationing section; a first rack sorting section located downstream from an outlet of said transfer line for receiving said sample racks transferred by said transfer line, said first rack sorting section being connected to said rack stationing section and directing sample racks that have to await determination as to the necessity for reexamination, to said rack stationing section, while directing sample racks that need reexamination, directly to a second rack sorting section connected to said first rack sorting section downstream therefrom by a rack feeding mechanism, said second rack sorting section being connected to an inlet of said return line and to said rack collecting section; wherein said second rack sorting section selects, from among the sample racks which have been received from said first rack sorting section, a sample rack determined as necessitating the reexamination and directs the selected sample rack to said inlet of said return line for return to said analysis section, said second rack sorting section also directing a sample rack that has finished examination to said rack collecting section. 2. An automatic analyzing apparatus, comprising: a control section operatively connected so as to control operations of the analyzing apparatus; a transfer line for transferring said sample racks; an analysis section, connected to said transfer line by a rack pickup mechanism, for receiving sample racks from said transfer line and examining samples extracted from sample vessels accommodated in said sample racks; rack ejection means in said analysis section connected to said transfer line for transferring said sample racks from said analysis section back to said transfer line after extraction of said samples; a rack stationing section connected to said transfer line downstream from said analysis section for stationing sample racks which have a possibility of being subjected to a reexamination; a rack collecting section connected to said rack stationing section for accommodating the sample racks with which the examination has been finished; a return line along which the sample racks that need to be reexamined are returned back to said analysis section, said return line having an inlet for receiving the sample racks from said rack stationing section; a first rack sorting section located downstream from an outlet of said transfer line for receiving said sample racks transfered by said transfer line, said first rack sorting section being connected to said rack stationing section and directing sample racks that have to await determination as to the necessity for reexamination, to said rack stationing section, and selecting, from among the sample racks that need not await the determination, sample racks that do not need reexamination and directing the selected sample racks to said rack collecting section, while directing the sample racks that need the reexamination to a second rack sorting section connected to said first rack sorting section downstream therefrom, said second rack sorting section being connected to an inlet of said return line and to said rack collecting section; wherein said second rack sorting section directs the sample racks that need reexamination received from said first rack sorting section, to said inlet of said return line for return to said analysis section, said second rack sorting section also selecting, from among the sample racks stationed in said stationing section, sample racks that need reexamination and directing the selected sample racks to said inlet of said return line for return to said analysis section, while directing the sample racks that have finished examination to said rack collecting section. 3. An automatic analyzing apparatus, comprising: a control section operatively connected so as to control operations of the analyzing apparatus; a transfer line for transferring sample racks; an analysis section, connected to said transfer line by a rack pickup mechanism, for receiving sample racks from said transfer line and examining samples extracted from sample vessels accommodated in said sample racks; rack ejection means in said analysis section connected to said transfer line for transferring said sample racks from said analysis section back to said transfer line after extraction of said samples; a rack stationing section connected to said transfer line downstream from said analysis section for stationing sample racks which have a possibility of being subjected to a reexamination; a rack collecting section connected to said rack stationing section for accommodating the sample racks with which the examination has been finished; a return line along which the sample racks that need to be reexamined are returned back to said analysis section, said return line having an inlet for receiving sample racks; a first rack sorting section downstream from an outlet of said transfer line for receiving said sample racks transferred by said transfer line, said first rack sorting section directing sample racks that have to await determination as to the necessity for the reexamination to said rack stationing section, while directing sample racks that need reexamination directly to said inlet of said return line for return to said analysis section and directing sample racks that do not need the reexamination to said rack collecting section; and a second rack sorting section connected to said first rack sorting section and said rack stationing section for selecting, from among the sample racks stationed in said rack stationing section, sample racks that need reexamination and directing the selected sample racks to said inlet of said return line for return to said analysis section, while directing the sample racks that have finished examination to said rack collecting section. 4. An automatic analyzing apparatus according to claim 1, wherein said rack stationing section has a receiving area for receiving the sample racks from an inlet of said rack stationing section and a delivery area through which said sample racks are delivered to an outlet of said rack stationing section after lapse of a stationing period, said receiving area and said delivery area being arranged to provide a substantially U-shaped path of transfer of said sample racks.
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