CN111505320A - Sample rack transporting device, sample analysis system and control method - Google Patents
Sample rack transporting device, sample analysis system and control method Download PDFInfo
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- CN111505320A CN111505320A CN201910100215.3A CN201910100215A CN111505320A CN 111505320 A CN111505320 A CN 111505320A CN 201910100215 A CN201910100215 A CN 201910100215A CN 111505320 A CN111505320 A CN 111505320A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004458 analytical method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 108
- 238000012546 transfer Methods 0.000 claims description 146
- 239000000872 buffer Substances 0.000 claims description 79
- 239000012160 loading buffer Substances 0.000 claims description 58
- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 238000012552 review Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000013102 re-test Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 12
- 210000000078 claw Anatomy 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/0092—Scheduling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/026—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having blocks or racks of reaction cells or cuvettes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
- G01N2035/00792—Type of components bearing the codes, other than sample carriers
- G01N2035/00801—Holders for sample carriers, e.g. trays, caroussel, racks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
- G01N2035/00821—Identification of carriers, materials or components in automatic analysers nature of coded information
- G01N2035/00831—Identification of carriers, materials or components in automatic analysers nature of coded information identification of the sample, e.g. patient identity, place of sampling
Abstract
The application discloses sample frame conveyer, sample analysis system and control method, including control system and by two at least track modules that link up in order backward to, each the track module includes outer track and interior track, each interior track is including the district that feeds that can forward transport sample frame, outer track can forward and reverse transport sample frame, whole orbital both ends and two all be equipped with the derailment mechanism between the track module, the sample frame of two-way transportation between the inside and outside track including the derailment mechanism can, control system has the mode of reinspection of returning, control system control outer track reverse motion makes forward the sample frame that feeds the district through current track module can be through reverse motion outer track returns to the district that feeds of target track module. The control system has a rollback reinspection mode, can realize rollback reinspection of the sample, and meets the specific requirements for sample detection.
Description
Technical Field
The invention relates to the technical field of sample analysis production lines and full-automatic sample processing, in particular to a sample rack conveying device and a sample analysis production line.
Background
An existing sample analyzer assembly line generally includes a loading platform for storing a sample to be tested, an unloading platform for storing a tested sample, and a sample rack transport device connecting the loading platform and the unloading platform. For the existing sample rack transportation device, in order to improve the transportation efficiency of the sample rack, a scheme of a plurality of tracks is generally adopted.
In the prior art, the track module of the sample rack transport device includes an inner track and an outer track that are parallel to each other. The inner rail is divided into an inner rail transfer area, a loading area, a feeding area and an unloading area, and a sample analyzer is arranged on the outer side of the feeding area. The outer rail includes an outer rail transition area. The total length of the track is long and the occupied space is large due to the transverse arrangement of the areas.
Disclosure of Invention
The invention provides a novel sample rack conveying device and a sample rack conveying assembly line.
The invention provides a sample rack transporting device, which comprises a control system and at least two track modules which are sequentially connected from front to back, wherein each track module comprises an outer track and an inner track, each inner track comprises a feeding area capable of transporting sample racks in a forward direction, the outer track can transport the sample racks in the forward direction, track changing mechanisms are arranged at the front ends of the track modules positioned at the forefront and between the two adjacent track modules, the track changing mechanisms are connected with the inner track and the outer track and can transfer the sample racks in a bidirectional mode between the inner track and the outer track, and each inner track further comprises a loading buffer area capable of containing a plurality of rows of sample racks and an unloading buffer area capable of containing a plurality of rows of sample racks; for each track module, the loading buffer area is connected with the front end of the feeding area and the track transfer mechanism positioned in front of the track module, and the unloading buffer area is connected with the rear end of the feeding area and the track transfer mechanism positioned behind the track module; each feeding area and each outer track are transversely arranged, and each loading buffer area and each unloading buffer area are longitudinally arranged; the control system is in control connection with the outer rail, the inner rail and the track transfer mechanism.
The transversely disposed feed area has opposite ends, a front end and a rear end, respectively, from which the specimen rack moves toward the rear end when the feed area is transporting the specimen rack in a forward direction. The loading buffer area is connected with the front end of the feeding area of the track module and the track transfer mechanism in front of the track module, and the unloading buffer area is connected with the rear end of the feeding area of the track module and the track transfer mechanism behind the track module. The load buffer may be directly connected to the track transfer mechanism or indirectly connected through the track. The unload buffer may be directly coupled to the track transfer mechanism or indirectly coupled through the track.
The outer track is a bidirectional track capable of transporting the sample rack in the forward direction and the reverse direction, the control system is provided with a rechecking mode, in the rechecking mode, the control system controls the outer track to move in the forward direction or the reverse direction, so that the sample rack passing through the feeding area of the current track module in the forward direction can move to the target track module through the outer track and the track changing mechanism, and rechecking is carried out in the feeding area of the target track module.
The current track module and the target track module are the same track module, and the rechecking of the machine is realized.
And the current track module is different from the target track module, so that the machine replacement and the retest are realized. The target track module may be located in front of the current track module or behind the current track module.
The loading buffer area is provided with a first sensor connected with the control system, and when the sample rack accommodated in the loading buffer area is full, the first sensor sends a buffer area full trigger signal to the control system; the unloading buffer area is provided with a second sensor connected with the control system, and when the sample rack accommodated in the unloading buffer area is full, the second sensor sends a buffer area full trigger signal to the control system.
Each track module further comprises a loading connecting track and an unloading connecting track, for each track module, the loading buffer area is connected with the track transfer mechanism positioned in front of the track module through the loading connecting track, the unloading buffer area is connected with the track transfer mechanism positioned behind the track module through the unloading connecting track, and the loading connecting track and the unloading connecting track are transversely arranged. Loading and unloading connecting rails such as belts.
And a detector capable of acquiring the identity information of the sample rack is arranged at an outlet of the unloading buffer area.
The feeding zone is a bidirectional track capable of transporting sample racks in a forward direction and in a reverse direction.
The track transfer mechanism comprises an inner track transfer inlet track and an outer track transfer inlet track which are transversely arranged, and the inner track transfer inlet track is connected with the inner track and can be switched to a position corresponding to the outer track; the external orbital transfer entrance track is connected with the external track and can be switched to the position corresponding to the internal track. Both the inner and outer orbital transfer entry tracks are accessible to the sample rack.
A sample analysis system comprises a sample analyzer and the sample rack transportation device, wherein the sample analyzer is correspondingly arranged in each feeding area of the sample rack transportation device. Typically, one sample analyzer is provided for each feeding zone.
The sample analysis system further comprises an unloading platform and a loading platform, wherein the loading platform is arranged at the front end of the foremost track module, and the unloading platform is arranged at the front end of the foremost track module or the rear end of the rearmost track module. The loading platform is used for storing samples to be detected. The unloading platform is used for storing the tested samples. The loading platform and the unloading platform can be at the same side, namely the rail transfer mechanism at the front end of the foremost track module is connected with the unloading platform, and the loading platform is connected with the unloading platform. The loading platform and the unloading platform can be arranged on different sides, namely, the rail transfer mechanism at the front end of the front rail module is connected with the loading platform, and the rear end of the rear rail module is connected with the unloading platform.
A control method of a sample rack transportation device, the device comprises a control system and at least two track modules which are sequentially connected from front to back, each track module comprises an outer track and an inner track, each inner track comprises a feeding area capable of transporting sample racks in a forward direction, the outer track can transport the sample racks in the forward direction and in the reverse direction, rail changing mechanisms are arranged at the front ends of the foremost track modules and between the two adjacent track modules, the rail changing mechanisms are connected with the inner track and the outer track and can transfer the sample racks in two directions between the inner track and the outer track, and the method comprises the following steps:
receiving a control instruction of the retest;
determining a rechecking movement route between the current track module and the target track module;
transferring the sample rack on the inner track to the outer track through the track transfer mechanism;
controlling the outer track on the rechecking motion route to move reversely;
and controlling the sample rack which positively flows out of the feeding area of the current track module to move to the feeding area of the target track module along the rechecking motion route.
In the control method, a transverse loading buffer area is arranged on each track module, and the loading buffer area is connected with the front end of the feeding area and a track changing mechanism positioned in front of the track modules;
and arranging a transverse unloading buffer area on each track module, so that the unloading buffer area is connected with the rear end of the feeding area and a track transfer mechanism positioned behind the track modules.
The current track module and the target track module are the same track module, and during re-inspection, the sample rack is controlled to retreat to the feeding area of the current track module along the unloading buffer area of the current track module, the track transfer mechanism positioned behind the current track module, the outer track of the current track module, which moves in the reverse direction, the track transfer mechanism positioned in front of the current track module and the loading buffer area of the current track module.
The current track module is different from the target track module, the target track module is located in front of the current track module, and during rechecking, the sample rack is controlled to return to a feeding area of the target track module after the unloading buffer area of the current track module, the track transfer mechanism located behind the current track module, the outer track of the reverse motion of the target track module, the track transfer mechanism in front of the target track module and the loading buffer area of the target track module.
Detecting whether a first sensor arranged in the loading buffer area is triggered, and if so, stopping dispatching the sample rack to enter the loading buffer area; and if not, scheduling the sample rack to enter the loading buffer area.
Detecting whether a second sensor arranged in the unloading buffer area is triggered, and if so, stopping dispatching the sample rack to enter the unloading buffer area; and if not, scheduling the sample rack to enter the unloading buffer area.
The invention has the beneficial effects that: 1) the throughput capacity of the sample rack can be effectively increased by arranging the loading buffer area and the unloading buffer area, and the transverse space of the whole assembly line can be saved by longitudinally arranging the loading buffer area and the unloading buffer area. 2) The control system has a rechecking mode, can realize the rechecking of the sample and meet the specific requirements of a user on the sample detection.
Drawings
Fig. 1 is a schematic structural view of a rail module of the specimen rack transport apparatus of the present embodiment;
fig. 2 is a schematic structural view of the specimen rack transport line of the present embodiment;
FIG. 3 is a schematic flow chart of controlling the pushing mechanism to push the sample rack in the buffer area;
fig. 4 is a schematic perspective view of the pushing mechanism of the present embodiment;
fig. 5 is a schematic perspective view of the sample rack of the present embodiment;
fig. 6 is a schematic view of another configuration of a track module of the sample rack transport device.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
As shown in fig. 1 to 3, a sample rack transportation device applied to a sample rack transportation line includes at least two track modules connected in sequence. Each track module comprises an inner track and an outer track 5. The inner track comprises a feeding zone 3, and outside the feeding zone 3, a sample analyzer 10 may be arranged, the sample analyzer 10 being a sample analyzer such as a blood routine instrument, a CRP instrument, a slide pusher instrument, a saccharification instrument, a slide reader instrument or a flow cytometer instrument, each track module typically corresponding to one sample analyzer. The outer rail 5 is a bidirectional rail capable of transporting the sample rack in the forward direction, which is the transport direction of the line, and in the reverse direction. Be equipped with the orbital mechanism of becoming between whole orbital both ends and two adjacent track modules, become orbital mechanism and connect inside and outside track, it can transport the sample frame on the interior track to outer track, also can transport the sample frame on the outer track to inside track, should become orbital mechanism promptly and can realize two-way transportation between the inside and outside track. The orbital transfer mechanism has interior orbital transfer entry track 7 and outer orbital transfer entry track 8, and interior orbital transfer entry track 7 can link up the interior track of two adjacent track modules, and outer orbital transfer entry track 8 can link up the outer track of two adjacent track modules. When the sample rack is transferred from the inner track to the outer track, the inner track-changing inlet track and the outer track-changing inlet track synchronously move outwards until the inner track-changing inlet track is switched to correspond to the outer track; when the sample frame is transferred to the inner rail from the outer rail, the inner orbital transfer entrance rail and the outer orbital transfer entrance rail synchronously move inwards until the outer orbital transfer entrance rail is switched to correspond to the inner rail.
Each track module is sequentially connected from front to back, each track module can be respectively defined as a first track module and a second track module … nth track module, the track module positioned at the forefront is the first track module, and the track module positioned at the rearmost is the nth track module, for the ith track module in the middle, the (i-1) th track module is positioned at the front of the ith track module, and the (i + 1) th track module is positioned at the rear of the ith track module. Typically, the specimen rack is fed into the flow line from the first rail module located at the forefront and is fed out of the flow line from the nth rail module located at the rearmost, in the direction of transport of the flow line. The forward direction may be a forward to backward direction. The reverse direction may be a forward-backward direction. The track transfer mechanism can be arranged at the front end of the first track module, the rear end of the nth track module and between the two adjacent track modules. Of course, the track transfer mechanism may be provided only at the front end of the first track module and between two adjacent track modules. For two adjacent track modules, the rear end of the front track module is connected with the front end of the rear track module through the track transfer mechanism. For any track module, the track module adjacent to and in front of it can be defined as an upper track module, and the track module adjacent to and in back of it can be defined as a lower track module.
The sample rack transport device comprises a control system which controls each inner track, each outer track and each track transfer mechanism. The control system may have a review mode in which a sample rack on a current track module can be moved to a target track module for review at the feed zone of the target track module. Specifically, the control system controls the outer track and the track changing mechanism on the rechecking movement route, so that the sample rack which passes through the feeding area of the current track module in the forward direction can move to the target track module through the rechecking movement route, and rechecking is carried out in the feeding area of the target track module.
The review mode may include a native review mode and a change review mode. In the local machine rechecking mode, the current track module and the target track module are the same track module, which comprises two conditions: the feeding area retreats for rechecking, namely the control system makes the feeding area move reversely, so that the sample rack directly retreats reversely on the feeding area; and (4) performing reverse winding and rechecking from the outer track, namely enabling the outer track of the current track module to move reversely by the control system, and enabling the sample rack detected by the sample analyzer in the feeding area of the current track module to pass through the track transfer mechanism and the reversely moving outer track and then return to the feeding area of the current track module again for rechecking.
In the machine changing and rechecking mode, the target track module is positioned in front of or behind the current track module. The target track module and the current track module may be adjacent to each other, or may be separated by at least one track module. In this mode, the control system moves the outer track between the current track module and the target track module in either a forward or reverse direction, allowing the sample rack on the current track module to pass straight through the outer track and the track transfer mechanism and finally move to the feed zone 3 of the target track module. The machine replacement rechecking mode comprises three conditions: unloading the sample rack of the current track module to a track transfer mechanism, and then directly passing through a target track module (a lower track module) behind in the forward direction for rechecking; unloading the sample rack of the current track module to a track transfer mechanism and then moving the sample rack of the current track module to the outer track in a reverse direction to a target track module (upper track module) positioned in front for rechecking; and unloading the sample rack of the current track module to a track transfer mechanism and then moving the sample rack of the current track module to the outer track in the forward direction to a target track module (a lower track module) positioned behind for rechecking. The rechecking is performed on the same detection item, and the rechecking of the same detection item can be completed on the same track module or different track modules.
The inner track of each track module may also comprise a loading buffer 2 capable of accommodating one or more rows of sample racks and an unloading buffer 4 capable of accommodating one or more rows of sample racks, the loading buffer 2 being located in front of the feeding section 3 and connecting the feeding section 3 and the track-changing mechanism located in front of the track module. The unloading buffer area 4 is positioned behind the feeding area 3 and is connected with the feeding area 3 and the track changing mechanism behind the track module. The loading buffer 3 and the unloading buffer 4 may be perpendicular to the outer track 5, while the feeding zone 3 is parallel to the outer track 5, i.e. the loading buffer 2 and the unloading buffer 4 are arranged longitudinally and the feeding zone 3 and the outer track 5 are arranged laterally.
As shown in fig. 1 to 3, a sample rack transportation device comprises a plurality of track modules 50, 51, 52 which are sequentially connected from front to back, and track changing mechanisms are arranged between two ends of the whole track and two adjacent track modules. The track module comprises inner and outer tracks 5, 15, 25. The inner track comprises a forward located loading buffer 2, 12, 22, a rearward located unloading buffer 4, 14, 24 and a feeding zone 3, 13, 23 between the loading and unloading buffers. The outer rails 5, 15, 25 are bidirectional rails capable of forward and reverse movement, that is, the outer rails can forward and backward transport the sample racks, and also can backward and forward and reverse transport the sample racks. Become rail mechanism and connect interior track and outer track, it can transport the sample frame on the outer track to interior track, also can transport the sample frame on the interior track to outer track. The track transfer mechanism is provided with inner track transfer inlet tracks 7, 17 and 27 and outer track transfer inlet tracks 8, 18 and 28, the inner track transfer inlet tracks 7, 17 and 27 are connected with inner tracks of two adjacent track modules, and the outer track transfer inlet tracks 8, 18 and 28 are connected with outer tracks of two adjacent track modules. Each load buffer 2, 12, 22 may be connected to the inner orbital entry tracks of the orbital transfer mechanism by a load connection track 6, 16, 26 and each unload buffer 4, 14, 24 may be connected to the inner orbital entry tracks of the orbital transfer mechanism by an unload connection track 9, 19, 29. Of course, the loading buffer 2 may also be directly connected to the internal orbital transfer entry track 7 of the orbital transfer mechanism in front of the track module where the loading buffer is located; the unloading buffer 4 can also be directly connected with the internal orbital transfer entry track of the orbital transfer mechanism behind the track module, as shown in fig. 6.
As shown in fig. 1, when the sample rack is not in the current track module for detection operation, the method includes three scheduling modes:
a) the sample rack enters from an external orbital transfer entrance track 8, passes through the external track 5 in the forward direction, and is transported to a track module connected with the rear end of the current track module.
b) The sample rack enters from an inner track transfer inlet track 7, is transferred to an outer track transfer inlet track 8 through a track transfer mechanism, is directly and positively communicated through an outer track 5, and is transported to a track module connected with the rear end of the current track module.
c) The sample rack enters from the left side of the outer rail 5, passes through the outer rail 5 in a reverse direction, and is transported to a rail module connected with the front end of the current rail module.
Through the forward movement and the reverse movement of the outer track, the bidirectional straight-through transportation between two adjacent track modules can be realized.
When the sample rack needs to perform detection operation on the current track module:
a) the sample rack enters from an external orbital transfer entrance track 8, is orbital transferred to an internal orbital transfer entrance track 7 through an orbital transfer mechanism, and is pushed to a loading buffer area 2 of the current track module to be detected and waited.
b) The sample rack enters from an internal orbital transfer entrance track 7, is directly pushed to enter a loading buffer area 2 of the current track module, and is detected and waited.
c) The sample rack enters from the left side of the outer track 5, reversely and directly passes through the outer track 5, arrives at an outer track transfer inlet track 8, is transferred by the track transfer mechanism, enters an inner track transfer inlet track 7, is pushed to enter a loading buffer area 2 of the current track module, and is detected and waited.
The sample rack enters the feeding area 3 from the loading buffer area 2 for measurement: loading the sample rack from the loading buffer area 2 into the feeding area 3, and sequentially conveying the sample rack to the positions of the sample analyzer, such as test tube detection, bar code scanning, sample mixing, sampling and the like, in combination with the state of the sample analyzer 10; when the sample in the sample rack is detected and needs to be detected again through a set rule, the sample rack can move reversely on the feeding area 3 and is uniformly mixed, sampled and measured again; after the sample analyzer 10 detects the sample, the sample is fed to the unloading buffer 4 through the feeding area 3. Of course, when the sample rack needs to be retested according to the established rule, the sample rack can be reversely wound back to be retested through the outer rail or rechecked by replacing a machine.
The unload buffer 4 may hold multiple rows of sample racks awaiting further allocation and scheduling. The unloading buffer 4 can individually push a row of sample racks to the unloading connecting track 9 by a pushing mechanism. By means of the unloading connecting track 9, the sample rack can be transported out of the current track module.
As shown in fig. 2, the sample rack has a variety of transport paths:
a first transport path: the sample rack enters from the outer orbital transfer entrance track 8, passes straight through the outer track 5 of the first track module 50 in the forward direction, and exits from the left side (rear end) of the outer track, which is a transport mode that passes straight through to the left.
In the second transport path, the specimen rack enters from the left side of the outer rail 5 of the first rail module 50, passes through the outer rail 5 in the reverse direction, and exits from the right side (front end) of the outer rail. The path is a straight-through transportation mode to the right.
In the third transportation path, a sample rack enters from an external orbital transfer entrance track 8, orbital transfer is performed through an orbital transfer mechanism, the external orbital transfer entrance track 8 is connected with a connecting track 6, the sample rack sequentially passes through a loading connecting track 6, a loading buffer area 2, a feeding area 3, an unloading buffer area 4, an unloading connecting track 9 and an internal orbital transfer entrance 17 of a first track module 50 from the external orbital transfer entrance track 8, then orbital transfer is performed through the orbital transfer mechanism, the internal orbital transfer entrance track 17 is connected with outer tracks 5 and 15, and then the sample rack positively and directly passes through the outer track 15 of a second track module 51 and is output from the left side of the outer track 15. In this path, the sample rack enters from the right side and is output from the left side after the test is completed.
And in the fourth transportation path, the sample rack enters from an external orbital transfer entrance track 8, is orbital transferred by an orbital transfer mechanism, the external orbital transfer entrance track 8 is connected with the connecting track 6, and the sample rack sequentially passes through the loading connecting track 6, the loading buffer area 2, the feeding area 3, the unloading buffer area 4, the unloading connecting track 9 and the internal orbital transfer entrance 17 of the first track module from the external orbital transfer entrance track 8, is orbital transferred by the orbital transfer mechanism, the internal orbital transfer entrance track 17 is connected with the external tracks 5 and 15, reversely and directly passes through the external track 5 of the first track module 50, and is output from the right side of the external track 5. In this path, the sample rack enters from the right side and is output from the right side after the test is completed.
A fifth transportation path, wherein a sample rack enters from an external track transfer entrance track 8, is transferred by a track transfer mechanism, the external track transfer entrance track 8 is connected with a connecting track 6, the sample rack sequentially passes through a loading connecting track 6, a loading buffer area 2, a feeding area 3, an unloading buffer area 4, an unloading connecting track 9, an internal track transfer entrance track 17 of a first track module 50 from the external track transfer entrance track 8, the external track 5 of the first track module 50 (the sample rack enters the external track 5 from the internal track transfer entrance track 17 after being transferred by the track transfer mechanism, the internal track transfer entrance track 17 is connected with the external tracks 5 and 15), the external track transfer entrance track 8, a loading connecting track 6 (the external track transfer entrance track 8 is connected with the connecting track 6, the sample rack enters the loading connecting track 6 from the external track transfer entrance track 8) and the loading buffer area 2, and finally returns to the feeding area 3 of the first track module 50, and realizing the rollback rechecking of the machine.
In the sixth transportation path, the sample rack enters from the external orbital transfer entrance track 8, and is orbital transferred through the orbital transfer mechanism, the external orbital transfer entrance track 8 is connected with the connecting track 6, and the sample rack sequentially passes through the loading connecting track 6, the loading buffer area 2, the feeding area 3, the unloading buffer area 4, the unloading connecting track 9, the internal orbital transfer entrance track 17, the loading connecting track 16 and the loading buffer area 12 of the second track module 51 from the external orbital transfer entrance track 8 and is finally transported to the feeding area 13 of the second track module 51, so that the machine replacement recheck is realized.
A seventh transportation path, wherein the sample rack enters from the external orbital transfer entrance track 18, the orbital transfer is performed through the orbital transfer mechanism, the external orbital transfer entrance track 18 is connected with the connecting track 16, the sample rack passes through the loading connecting track 16, the loading buffer area 12, the feeding area 13, the unloading buffer area 14, the unloading connecting track 19 and the internal orbital transfer entrance track 27 of the second track module 51 from the external orbital transfer entrance track 18 in sequence, the external track 15 of the second track module 51 (the sample rack enters the external track 15 from the internal orbital transfer entrance track 27 after being transferred by the orbital transfer mechanism and the internal orbital transfer entrance track 27 is connected with the external tracks 25 and 15), the external track 5 of the first track module 50, the external orbital transfer entrance track 8, the loading connecting track 6 (the orbital transfer is performed by the orbital transfer mechanism, the external orbital transfer entrance track 8 is connected with the connecting track 6, the sample rack enters the loading connecting track 6 from the external orbital transfer entrance track 8) and the loading buffer area 2, and finally returning to the feeding area 3 of the first track module 50 to realize the machine-reversing recheck.
In the eighth transportation route, the sample rack enters from the external orbital transfer entrance track 28, and is orbital transferred by the orbital transfer mechanism, the external orbital transfer entrance track 28 is connected with the connecting track 26, the sample rack passes through the loading connecting track 26, the loading buffer area 22, the feeding area 23, the unloading buffer area 24, the unloading connecting track 29, the internal orbital transfer entrance track 37 of the third track module 52 from the external orbital transfer entrance track 28 in sequence, and the external track 25 of the third track module 52 (orbital transfer by the orbital transfer mechanism, the sample rack enters the external track 25 from the internal orbital transfer entrance track 37 after the internal orbital transfer entrance track 37 is connected with the external track 25), the external orbital transfer entrance track 28, the external track 15 of the second track module 51, the external orbital transfer entrance track 18, the external track 5 of the first track module 50, the external orbital transfer entrance 8, the loading connecting track 6 (orbital transfer by the orbital transfer mechanism, the external orbital transfer entrance 8 is connected with the connecting track 6, the sample rack enters the connecting track 6) and the loading buffer area 2 from the external orbital transfer entrance track 8, and finally returns to the feeding area 3 of the first track module 50, so that the machine is replaced to realize the return recheck.
Because the outer track of each track module is a bidirectional track, the inner track, the outer track and the track changing mechanism are controlled by the control system, so that the rightward through transportation, the leftward through transportation, the machine re-inspection, the machine replacement re-inspection, the machine rollback re-inspection and the machine replacement rollback re-inspection among different track modules of the sample rack can be realized.
When the sample rack is scheduled, the following factors need to be considered: 1) the speed is not reduced, the number of the sample racks in the loading buffer area is preferentially ensured, and the requirement of continuous transportation of the sample racks in the production line can be met; 2) retest samples including blood routine samples, CRP samples, slide samples and saccharification samples; 3) whether the unloading buffer area is full or not, wherein the speed is influenced by the full unloading buffer area; 4) unloading samples, and conveying the samples from the unloading buffer area to the unloading platform through the unloading connecting track. And the sample rack scheduling is performed through path calculation according to the factors and the load conditions of various sample analyzers on the production line. When the path is occupied, the sample rack to be scheduled is temporarily stopped on the unloading buffer.
And the path calculation adopts region segmentation, so that the use efficiency of the outer track is increased. And dividing the whole outer track on the assembly line into an occupied area and a non-occupied area. Path calculation can be carried out again in new scheduling, and if an occupied area needs to be used, waiting is carried out; if the unoccupied area is used, the use can be continued.
In this embodiment, the loading buffers 2, 12, 22 and the unloading buffers 4, 14, 24 are designed with enough space to accommodate multiple rows (at least two rows) of sample racks, which can stay in the loading buffers and the unloading buffers at the same time without affecting the movement of the sample racks in the feeding area 3 and the outer track 5.
As shown in fig. 1 to 5, a pushing mechanism may be disposed at a side of the loading buffer, and the pushing mechanism may push the sample rack from the loading buffer 2 to the feeding area 3, wherein the pushing distance is the width of a row of sample racks. The loading buffer area is provided with a first sensor SEN, the pushing mechanism pushes the sample frame and then detects whether the first sensor is triggered, if so, the loading buffer area is full, and the sample frame is stopped from being conveyed into the loading buffer area 2; if not, scheduling may continue.
The side of the unloading buffer area can also be provided with a pushing mechanism which can push the sample rack from the feeding area 3 to the unloading buffer area 4, and the pushing distance is the width of a row of sample racks. The unloading buffer area is provided with a second sensor SEN, the pushing mechanism pushes the sample frame and then detects whether the second sensor is triggered, if so, the unloading buffer area is full, and the sample frame is stopped from being conveyed into the unloading buffer area 4; if not, scheduling may continue.
When the control system schedules the sample racks: when detecting that the unloading buffer area has no sample rack, pushing the sample rack on the feeding area to the unloading buffer area; when the sample rack in the unloading buffer area is detected, the sample rack in the feeding area can be pushed to the unloading buffer area until the unloading buffer area is full; at any time, the sample racks in the unloading buffer area can be pushed to the unloading connection track, so that the scheduling efficiency of the outer track can be improved; before the sample rack in the feeding area is tested, the sample rack in the loading buffer area waits to be scheduled; when multirow test-tube rack, when first row test-tube rack transported the uninstallation connecting track, can separate first row and second row test-tube rack, solve multirow test-tube rack because of the extrusion, and lead to first row test-tube rack to have pressure, make the belt can't take away first row test-tube rack and influence the straight problem of outer track sample frame.
As shown in fig. 4 and 5, the sample rack can be pushed by the pushing mechanism 6, and the pushing mechanism 6 may include two pushing claws 61, the pushing claws are mounted on the top end of an elevating mechanism 63, the elevating mechanism 63 is slidably mounted on a linear guide 62, and the elevating mechanism 63 is driven by a horizontal driving mechanism 64 to move back and forth on the linear guide 62. The lifting mechanism 63 can effect the raising or retracting of the pusher claw 61 in the height direction. When the pusher jaws 61 are retracted, they can be moved back and forth under the sample rack 7 so that they can rest on the sample rack back 71, rest on the bottom of the sample rack or cross the sample rack underneath. When the pusher claw 61 is lifted, the pusher claw can stop at the back surface 71 of the sample rack, and can push the sample rack to move forwards from the back surface 71. When the pusher dog 61 is stopped at the bottom of the sample rack, the pusher dog can be clamped in a bottom groove 72 at the bottom of the sample rack when being lifted, and a single-row or multi-row sample rack is pushed to move back and forth by acting on edges 73 and 74 at two sides of the bottom groove. The pushing mechanism 6 can further comprise an in-place detection mechanism 65, a contact of the in-place detection mechanism can stretch, when the pushing claw 61 pushes the sample rack, the contact protrudes, and the sample rack moves in place after touching the contact; when the outer track is directly communicated with the sample rack, the contact retracts out of the track surface and does not interfere with the movement of the sample rack.
In the sample rack transportation process, assuming that the control system knows that the number of the sample racks transported to the feeding area 3 is five, if one rack is manually taken away when the five racks are transported to the unloading buffer area 4, the control system can know that four sample racks are left in the unloading buffer area 4 through the moving steps of the pushing mechanism, and the result is not consistent with the expectation. If there is a sample needing to be pushed in the original third rack, if the test is continued, the system may mistake the fourth rack sample rack as the third rack, resulting in a wrong sample rack being sent. In order to control errors, in the prior art, once the number of the sample racks in the unloading buffer area is found to be inconsistent with the expectation, the sample rack transportation is stopped, and the transportation efficiency of the whole production line is affected. As shown in fig. 3, in order to solve this problem, a detector may be provided on both sides of the outlet of the unloading buffer 4, on both sides of the unloading connecting track 9, i.e., one of positions a, b, c, d in fig. 1, which corresponds to the position of the rfid tag on the sample rack, and normally, a detector may be provided on the inner side (i.e., position c) of the unloading connecting track 9. The identity information of the sample rack is obtained through the detector, so that the sample rack is known to be taken away, the condition that the sample rack is mistakenly delivered is avoided, and the conveying efficiency of the assembly line is improved. The detector may be an RFID-based detection method, a barcode scanner-based detection method, or another detection method capable of recognizing the sample rack identity information.
A sample analysis system comprising a sample analyzer and a sample rack transport device, each feed zone of the sample rack transport device corresponding to the sample analyzer. Typically, the feed zones are in one-to-one correspondence with the sample analyzers. The rail transfer mechanism at the front end of the whole track of the sample conveying device is connected with the loading platform, and the rail transfer mechanism at the rear end of the whole track is connected with the unloading platform. The loading platform can be used for storing samples to be detected. The unloading platform can be used to store the examined samples.
A control method of a sample rack conveying device comprises a control system and at least two track modules which are sequentially connected from front to back, each track module comprises an outer track and an inner track, each inner track comprises a feeding area capable of conveying sample racks in a forward direction, the outer track can convey the sample racks in the forward direction and the reverse direction, rail changing mechanisms are arranged at two ends of the whole track and between the two track modules, the rail changing mechanisms are connected with the inner track and the outer track and can transfer the sample racks between the inner track and the outer track in a two-way mode, and the method comprises the following steps: receiving a control instruction of the retest; determining a rechecking movement route between the current track module and the target track module; controlling the outer track on the rechecking motion route to move reversely; and controlling the test tube rack which positively flows out of the current track module to retreat to the feeding area of the target track module along the rechecking movement route.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.
Claims (18)
1. A sample rack transportation device is characterized by comprising a control system and at least two track modules which are sequentially connected from front to back, wherein each track module comprises an outer track and an inner track, each inner track comprises a feeding area capable of transporting sample racks in a forward direction, the outer track can transport the sample racks in the forward direction, track changing mechanisms are arranged at the front ends of the foremost track modules and between the two adjacent track modules, the track changing mechanisms are connected with the inner track and the outer track and can transfer the sample racks in a bidirectional mode between the inner track and the outer track, and each inner track further comprises a loading buffer area capable of containing a plurality of rows of sample racks and an unloading buffer area capable of containing a plurality of rows of sample racks; for each track module, the loading buffer area is connected with the front end of the feeding area and the track transfer mechanism positioned in front of the track module, and the unloading buffer area is connected with the rear end of the feeding area and the track transfer mechanism positioned behind the track module; each feeding area and each outer track are transversely arranged, and each loading buffer area and each unloading buffer area are longitudinally arranged; the control system is in control connection with the outer rail, the inner rail and the track transfer mechanism.
2. The specimen rack transport apparatus of claim 1, wherein the outer track is a bidirectional track capable of transporting specimen racks in forward and reverse directions, and the control system has a review mode in which the control system controls the outer track to move in either forward or reverse directions so that a specimen rack passing forward through a current track module feed area can be moved to a target track module through the outer track, a track change mechanism, and a review is performed at a target track module feed area.
3. The sample rack transport apparatus of claim 2, wherein the current track module and the target track module are the same track module.
4. The specimen rack transport apparatus of claim 2, wherein the current track module and the target track module are distinct.
5. The specimen rack transport apparatus of claim 1, wherein the load buffer is provided with a first sensor connected to the control system, the first sensor sending a buffer full trigger signal to the control system when a specimen rack contained in the load buffer is full; the unloading buffer area is provided with a second sensor connected with the control system, and when the sample rack accommodated in the unloading buffer area is full, the second sensor sends a buffer area full trigger signal to the control system.
6. The specimen rack transport apparatus of claim 1, wherein the rear end of the rearmost track module is also provided with the track transfer mechanism.
7. The specimen rack transport apparatus of claim 1, wherein each of the track modules further comprises a loading connection track and an unloading connection track, and for each of the track modules, the loading buffer is connected to a track transfer mechanism located in front of the track module through the loading connection track, the unloading buffer is connected to a track transfer mechanism located behind the track module through the unloading connection track, and the loading connection track and the unloading connection track are arranged laterally.
8. The sample rack transport apparatus of claim 1, wherein the outlet of the unloading buffer is provided with a detector capable of obtaining sample rack identity information.
9. The sample rack transport apparatus of claim 1, wherein the feed area is a bidirectional track capable of transporting sample racks in a forward direction and in a reverse direction.
10. The specimen rack transport apparatus of claim 1, wherein the track transfer mechanism includes laterally disposed inner and outer track transfer entry rails, the inner track transfer entry rails engaging the inner rail and being switchable to correspond to the outer rail; the external orbital transfer entrance track is connected with the external track and can be switched to the position corresponding to the internal track.
11. A sample analysis system comprising a plurality of sample analyzers, and further comprising a sample rack transport device according to any one of claims 1-10, wherein each feeding area of the sample rack transport device corresponds to one of the sample analyzers.
12. The sample analysis system of claim 11, further comprising an unloading platform and a loading platform, the loading platform being disposed at a front end of the forwardmost track module, the unloading platform being disposed at a front end of the forwardmost track module or a rear end of the rearmost track module.
13. A control method of a sample rack transportation device is characterized in that the device comprises a control system and at least two track modules which are sequentially connected from front to back, each track module comprises an outer track and an inner track, each inner track comprises a feeding area capable of transporting sample racks in a forward direction, the outer track can transport the sample racks in the forward direction and in a reverse direction, a track changing mechanism is arranged between the front end of the foremost track module and two adjacent track modules, the track changing mechanism is connected with the inner track and the outer track and can transfer the sample racks in a bidirectional mode between the inner track and the outer track, and the method comprises the following steps:
receiving a control instruction of the retest;
determining a rechecking movement route between the current track module and the target track module;
transferring the sample rack on the inner track to the outer track through the track transfer mechanism;
controlling the outer track on the rechecking motion route to move reversely;
and controlling the sample rack which positively flows out of the feeding area of the current track module to move to the feeding area of the target track module along the return inspection motion line.
14. The method for controlling a specimen rack transport apparatus according to claim 13, wherein a lateral loading buffer is provided in each of the track modules such that the loading buffer connects a front end of the feeding area and a track transfer mechanism located in front of the track modules;
and arranging a transverse unloading buffer area on each track module, so that the unloading buffer area is connected with the rear end of the feeding area and a track transfer mechanism positioned behind the track modules.
15. The method for controlling a specimen rack transport apparatus according to claim 14, wherein the current track module and the target track module are the same track module, and the specimen rack is controlled to retreat to the feeding area of the current track module along the unloading buffer area of the current track module, the track changing mechanism located behind the current track module, the outer track of the current track module moving in the reverse direction, the track changing mechanism located in front of the current track module, and the loading buffer area of the current track module during review.
16. The method for controlling the specimen rack transport apparatus according to claim 14, wherein the current track module and the target track module are different, and the target track module is located in front of the current track module, and when the re-inspection is performed, the specimen rack is controlled to move back to the feeding area of the target track module along the unloading buffer area of the current track module, the track-changing mechanism located behind the current track module, the outer track of the current track module moving in the reverse direction, the outer track of the target track module moving in the reverse direction, the track-changing mechanism located in front of the target track module, and the loading buffer area of the target track module.
17. The method for controlling the specimen rack transport device according to claim 14, wherein whether the first sensor provided in the loading buffer is triggered is detected, and if so, the sample rack is stopped from being scheduled to enter the loading buffer; and if not, scheduling the sample rack to enter the loading buffer area.
18. The method of claim 17, wherein detecting whether a second sensor disposed in the unloading buffer is triggered, if so, stopping dispatching the sample rack into the unloading buffer; and if not, scheduling the sample rack to enter the unloading buffer area.
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