CN115453133A - Sample analyzer and sample analyzing method - Google Patents
Sample analyzer and sample analyzing method Download PDFInfo
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- CN115453133A CN115453133A CN202211085393.1A CN202211085393A CN115453133A CN 115453133 A CN115453133 A CN 115453133A CN 202211085393 A CN202211085393 A CN 202211085393A CN 115453133 A CN115453133 A CN 115453133A
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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
- G01N35/04—Details of the conveyor system
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Abstract
The present invention relates to a sample analyzer comprising: the device comprises a supporting plate, a feeding device and a discharging device, wherein a loading area, a feeding area and an unloading area are arranged on the supporting plate; the pusher dog is arranged in the loading area and pushes the sample rack in the loading area into the feeding area; a bidirectional drive mechanism that bidirectionally transports the sample rack into the feed zone; and the controller locks the pusher dog before the sample rack entering the feeding area has enough space for retracting redundancy in the feeding area. The invention also relates to a sample rack conveying method, a storage medium and computer equipment. The sample analyzer can prevent the sample frame from being operated by mistake by means of the state control of the pusher dog for pushing the sample frame, does not need additional mechanism design, can simplify the structure and reduce the cost.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a sample analyzer and a sample analysis method.
Background
A sample analyzer is widely used in hospital disease diagnosis and medical science research as an in vitro diagnostic device. Sample analyzers typically have the capability of automatically transporting sample racks from a loading area to a feeding area, and then from the feeding area to an unloading area. The sample analyzer with the function of returning and rechecking supports the sample rack to be conveyed in two opposite directions of forward movement and backward movement in the feeding area. After a sample container in the sample rack is subjected to a piercing sampling step at a sampling position in the feeding area and is further pushed forward to leave the sampling position, if the sample in the sample container is determined to need to be resampled in the analysis process, the sample rack needs to be retreated to enable the sample container to be retreated to the sampling position again. Therefore, before a certain number of samples in the current sample rack are analyzed, redundant space should be reserved in the feeding area to satisfy the requirement of the retraction space when a certain sample in the sample rack needs to be retested. If the user operates by mistake, the backspacing rechecking function is abnormal.
In the prior art, a hook claw is disposed on a feeding path of a sample rack in a sample rack loading area, and the hook claw is lifted to prevent the sample rack from being pushed into the feeding area. In the mode, an additional device for controlling the movement of the hook claw needs to be designed, the structure is complex, and the cost is high.
Disclosure of Invention
Based on this, the invention aims to provide a sample analyzer and a sample analysis method, which can better avoid the possibility that a sample rack is operated by mistake in the automatic conveying process, and the realization mode adopts a simple structure and has lower cost.
A sample analyzer, comprising:
the device comprises a supporting plate, a feeding device and a discharging device, wherein a loading area, a feeding area and an unloading area are arranged on the supporting plate, the loading area is connected with a first end of the feeding area, and the unloading area is connected with a second end of the feeding area;
the pusher dog is arranged in the loading area and pushes the sample rack in the loading area into the feeding area;
a bidirectional transmission mechanism which is combined with the support plate and bidirectionally conveys the sample rack into the feeding area;
an assay unit, disposed adjacent to the feeding zone, for sampling and analyzing samples within sample containers in the sample racks, and for retesting samples returned to the sample racks of the assay unit; and
a controller that locks the pusher dog until a rack of samples entering the feeding zone has sufficient space within the feeding zone to retract the rack.
In one embodiment, the sample rack feeding device further comprises a first sensor arranged at the first end of the feeding area, and the first sensor senses the next sample rack entering the feeding area and generates a first sensing signal before the sample rack entering the feeding area has enough space for retracting redundancy in the feeding area.
In one embodiment, the sample rack feeding device further comprises a second sensor arranged at the second end of the feeding area, and the second sensor senses that the sample rack enters the feeding area and leaves the feeding area and generates a second sensing signal before the sample rack entering the feeding area completes the rechecking confirmation of all samples in the feeding area.
In one embodiment, the alarm further comprises an alarm which generates an alarm signal in response to the first sensing signal or the second sensing signal.
In one embodiment, the sample rack further comprises a counting sensor arranged in the feeding area, wherein the counting sensor is used for judging the position of the sample rack in the feeding area so as to determine whether the sample rack has enough space for retracting redundancy in the feeding area.
In one embodiment, the feeder further comprises a baffle disposed above the first end of the feed area.
In one embodiment, the sample rack unloading device further comprises a push claw, and after all samples in the sample racks in the feeding area are confirmed by the reinspection, the push claw sends the sample racks in the feeding area out to the unloading area.
In one embodiment, the pusher dog is arranged in the unloading zone or the pusher dog is arranged at the second end of the feeding zone.
A sample analysis method is applied to a sample analyzer, and the sample analyzer comprises a support plate, wherein a loading area, a feeding area and an unloading area are arranged on the support plate, the loading area is connected with a first end of the feeding area, and the unloading area is connected with a second end of the feeding area;
the pusher dog is arranged in the loading area and pushes the sample rack in the loading area into the feeding area;
a bidirectional transmission mechanism which is combined with the supporting plate and is used for bidirectionally conveying the sample rack into the feeding area;
an assay unit, disposed adjacent to the feeding zone, for sampling and analyzing samples within sample containers in the sample racks, and for retesting samples returned to the sample racks of the assay unit;
the sample analysis method comprises the following steps:
controlling a pusher dog to push the sample rack into a feeding area from a loading area, and then locking the pusher dog;
controlling a bidirectional transmission mechanism to convey the sample rack entering the feeding area from the first end to the second end;
and judging whether the sample rack entering the feeding area has enough redundant space for backing or not, if not, continuously locking the pusher dog, and if so, unlocking the pusher dog.
In one embodiment, the method further comprises the step of judging whether the information that the sample rack needs to be retracted is received, and if the information that the sample rack needs to be retracted is received, controlling a bidirectional transmission mechanism to retract the sample rack entering a feeding area from a second end to a first end.
In one embodiment, when the pusher dog is continuously locked, whether the next sample rack enters the feeding area is sensed, and if the next sample rack is sensed to enter the feeding area, an alarm signal is generated.
In one embodiment, the method further comprises the steps of judging whether all samples in the sample racks entering the feeding area are subjected to recheck confirmation, controlling the push claw to push the sample racks from the feeding area to the unloading area when the recheck confirmation is finished, sensing whether the sample racks leave the feeding area when the recheck confirmation is not finished, and generating an alarm signal if the sample racks leave the feeding area.
In one embodiment, after the pusher dog is unlocked, the pusher dog is controlled to reset.
In one embodiment, after the pusher dog is unlocked, the method further comprises the step of judging whether a next sample rack exists in the loading area, if so, the pusher dog is controlled to push the next sample rack into the feeding area from the loading area, and if not, the pusher dog is controlled to reset.
In one embodiment, the method further comprises the step of controlling the bidirectional transmission mechanism to splice the next sample rack and the sample rack.
The sample analyzer and the sample rack conveying method can prevent the sample rack from being operated by mistake by means of the state control of the pusher dog for pushing the sample rack, do not need additional mechanism design, simplify the structure and reduce the cost.
Drawings
Fig. 1 is a schematic view of a part of a sample analyzer according to an embodiment of the present invention.
Fig. 2, 3, 5, 6 and 7 are schematic diagrams illustrating different states of a sample analyzer during a process of transporting a sample rack according to an embodiment of the present invention.
Fig. 4 is an enlarged schematic view of a portion of the structure shown in fig. 3.
Detailed Description
As shown in fig. 1, the sample analyzer according to an embodiment of the present invention is used for automatically transporting a sample rack 90 and sampling and analyzing samples in a plurality of sample containers 901 in the sample rack 90 one by one, and includes a support plate 10, a finger 20, a bidirectional transmission mechanism 30, and a controller, wherein the finger 20 is disposed on the support plate 10, the bidirectional transmission mechanism 30 is disposed under the support plate 10, and the controller is in communication with the finger 20 and the bidirectional transmission mechanism 30 to control the specific transmission operation of the finger 20 and the bidirectional transmission mechanism 30.
The support plate 10 is provided with a loading area 11, a feeding area 12 (shown by a dotted line frame in fig. 1) and an unloading area 13, wherein the loading area 11 is connected with a first end 121 of the feeding area 12, and the unloading area 13 is connected with a second end 122 of the feeding area 12. In one conveying flow of the sample rack 90, the sample rack 90 is loaded in the loading area 11 of the support plate 10, and the pusher 20 is controlled by the controller to push from the loading area 11 into the feeding area 12. The sample rack 90 in the feeding area 12 is intermittently moved in the direction (X1 direction) from the first end 121 toward the second end 122 by the controller-controlled double-direction transmission mechanism 30, and the samples in the plurality of sample containers 901 in the sample rack 90 can be individually sampled and analyzed by the measurement unit provided in the sample analyzer adjacent to the feeding area 12. After all sampling and analysis is complete, the sample holder 90 is transported from the infeed area 12 to the unloading area 13. During sampling and analysis, it may be necessary to review some of the samples in the sample holders 90 that have passed through the measurement cell, the controller may control the double-direction drive mechanism 30 to move the sample holders 90 back in the direction from the second end 122 toward the first end 121 (direction X2) in the feed area 12 to the position of the measurement cell for resampling.
The pusher dog 20 is provided in the loading area 11 of the support plate 10 for pushing the sample rack 90 on the loading area 11 into the feeding area 12 of the support plate 10 in the Y1 direction. The fingers 20 may be driven by a driving member, such as a stepping motor or the like, disposed below the support plate 10 and controlled by a controller. At least part of the structure of the pusher dog 20 is located above the loading zone 11 of the support plate 10 for abutment with a sample rack 90 on the support plate 10. As shown in fig. 2, after the finger 20 abuts against the sample rack 90 on the loading area 11 and pushes one sample rack 90 on the loading area 11 adjacent to the feeding area 12 into the feeding area 12 along the Y1 direction, the finger 20 is locked and kept at the stop position to keep the abutting state with the sample rack 90 on the loading area 11, and the finger 20 is unlocked only after the sample rack 90 entering the feeding area 12 has enough space for retracting redundancy in the feeding area 12. As shown in fig. 3, the sample rack 90 entering the feeding area 12 has different positions where the sample containers 901 are transported to, and thus different retraction redundant spaces S are required for the sample positions 91 retracted to the measurement units, and if the retraction redundant spaces S are occupied illegally, the retraction retest of the corresponding sample containers 901 cannot be performed normally. Therefore, the finger 20 is continuously locked before there is enough space S in the feeding area 12 to retract the sample rack 90, so as to prevent the next sample rack 90 from being pushed into the feeding area 12 by mistake, and the retraction rechecking operation of the existing sample rack 90 in the feeding area 12 is affected.
The specific action of the unlocked pusher dog 20 is determined according to whether there is a sample rack 90 in the loading area 11, if there is a sample rack 90, the sample rack continues to travel in the Y1 direction, the next sample rack 90 is pushed to the feeding area 12 and then is locked again, so as to wait for the next unlocking message, and the process is repeated. If the loading area 11 is no longer provided with sample racks 90, the finger 20 is moved in the Y2 direction to the reset position to wait for the next batch of sample racks 90 to be loaded into the loading area 11.
The unlocked finger 20 can also move along the Y2 direction to directly reset without judging whether there is any sample rack 90 in the loading area 11, then move along the Y1 direction to push a new sample rack 90 that may be put in later to merge with the original sample rack 90 in the loading area 11, push the sample rack 90 closest to the feeding area 12 into the feeding area 12, and then be locked again to wait for the next unlocking message, and so forth.
The sample analyzer can prevent the sample frame 90 from being operated by mistake by controlling the state of the pusher dog 20 pushing the sample frame 90, and does not need additional mechanism design, thereby simplifying the structure and reducing the cost.
The movement of the pusher 20 in the Y1/Y2 direction is controlled by the controller, and a sensor (not shown), such as a counting sensor or a distance measuring sensor, may be disposed on the loading area 11 along the Y1 direction to determine the specific position of the pusher 20, and further determine whether there is a sample rack 90 on the loading area 11, so as to perform the specific motion of moving in the Y1 direction or returning in the Y2 direction. In other implementations, there may be no sensor if the determination of the finger position is not required.
The bi-directional drive mechanism 30 is used to transport the sample rack 90 entering the feed zone 12 in either the X1 direction or the X2 direction. The bidirectional transmission mechanism 30 is combined on the supporting plate 10, the sample rack 90 is intermittently and stepwise conveyed in the X1 direction, the sample containers 901 in the sample rack 90 pass through the sampling position of the measuring unit of the sample analyzer one by one, and the steps of mixing, puncturing, sampling and the like are performed on the sample containers, after the measuring unit performs sampling, the measuring unit analyzes the samples in a certain sample container 901, meanwhile, the bidirectional transmission mechanism 30 drives the sample rack 90 to move in the X1 direction, so that the next sample container 901 is opposite to the sampling position, and the steps of mixing, puncturing, sampling and the like can be performed on the next sample container 901. When the drawn sample needs to be sampled again after being analyzed, the bidirectional transmission mechanism 30 transfers the sample rack 90 in the X2 direction, so that the sample container 901 to be retested is retracted to the sampling position of the measurement unit for resampling.
The bidirectional drive mechanism 30 is also controlled by the controller to transport the sample rack 90 in either the X1 or X2 direction. When the controller receives the information that the sample rack 90 needs to be retracted, which is sent by the measurement unit, the controller controls the bidirectional transmission mechanism 30 to retract the sample rack 90 entering the feeding area 12 from the second end 122 toward the first end 121 along the X2 direction, and if the information that the sample rack 90 needs to be retracted is not received, the distance from the first end 121 to the second end 122 to one sample container 901 of the sample rack 90 is transmitted along the X1 direction after the sample container 901 at the current position is sampled, so that the next sample container 901 is opposite to the sampling position to perform the steps of blending, puncturing, sampling and the like.
As shown in fig. 2, two counting sensors 123 may be disposed in the feeding area 12, and each time the sample rack 90 travels the distance of one sample container 901 in the feeding area 12, the counting sensor 123 counts once, so as to accurately judge the specific position of the current sample rack 90, and thus it may be further determined whether the sample rack 90 has a sufficient retraction redundant space S in the feeding area 12. The controller controls the locking and unlocking of the fingers 20. The specific arrangement position and number of the count sensors 123 may be determined according to the specification of the sample rack 90 and the extension length of the feeding area 11 in the X1 and X2 directions, and are not limited to the positions shown in the drawings, and the number may be one or more.
In one embodiment, the sample analyzer further comprises a first sensor 40. The first sensor 40 is disposed at a first end 121 of the feed zone 12. The first sensor 40 is used to sense whether additional sample holders 90 have been illegally entered into the feeding zone 12 before the sample holders 90 entered into the feeding zone 12 have sufficient space S for retraction in the feeding zone 12. If the entry of another sample rack 90 into the feeding zone 12 is sensed, a first sensing signal is generated. The first sensor 40 may be a photoelectric coupled sensor, a mechanical switch type sensor, an electromagnetic type position sensor, or the like.
The first sensor 40 is in communication with the controller, and when the controller receives the first sensing signal generated by the first sensor 40, the controller can control the sample analyzer to perform corresponding operations, such as stopping the transmission of the bidirectional transmission mechanism 30.
Further, the sample analyzer further comprises an alarm which responds to the first sensing signal and generates an alarm signal of a type such as sound, light, text and the like to remind a user of abnormal sample rack transportation.
As shown in fig. 4, in one embodiment, the sample analyzer further includes a baffle 14 disposed above the first end 121 of the feed area 12. The width W of the feeding area 12 is matched with the width W1 of the sample rack 90, only a space for moving the sample rack 90 in the X1/X2 direction is reserved in the width of the feeding area 12, and then the sample rack 90 can be prevented from being placed in the feeding area 12 from top to bottom by a user through the baffle 14 arranged above the feeding area 12, so that misoperation on the sample rack 90 is further prevented. The blocking plate 14 may be integrally formed by extending the supporting plate 10, or may be a plate structure connected to the supporting plate 10.
As shown in fig. 5, in one embodiment, the sample analyzer further comprises a second sensor 50 disposed at the second end 122 of the feeding area 12, wherein the second sensor 50 is configured to sense whether a sample rack 90 in the feeding area 12 leaves the feeding area 12 before the sample rack 90 entering the feeding area 12 completes the retest confirmation of all samples in the feeding area 12, and generate a second sensing signal if the sample rack 90 is sensed to leave the feeding area 12. The alarm may also be responsive to the second sensing signal and generate an alarm signal of a type such as sound, light, text, etc. to alert the user to an abnormal transport of the sample rack 90.
In the normal transportation process of the sample rack, after the sample in the last sample container 901 of the sample rack 90 is sampled and analyzed, it still needs to wait to determine whether the samples in all the sample containers 901 of the sample rack 90 need to be retested, and only when the samples in all the sample containers 901 are retested or information that the retesting is not needed is received, the sample rack 90 can be transported from the feeding area 12 to the unloading area 13. By providing the second sensor 50, it is possible to sense whether the sample rack 90 in the feeding area 12, which is in the retest confirmation, is illegally moved out of the feeding area 12, and if the sensing result is yes, a second sensing signal is generated, and the user is alerted by the alarm signal.
In one embodiment, the sample analyzer further comprises a push pawl 60 for pushing the sample rack 90 of the feeding section 12 out to the unloading section 13. The pusher claw 60 is used to move the reinspected sample rack 90 in the feeding area 12 out to the unloading area 13 in the Y2 direction. The push claws 60 can be driven by means of a drive member mounted below the support plate 10. The push claw 60 is arranged at the unloading area 13, and the sample rack 90 at the second end 122 of the feeding area 12 can be pulled out to the unloading area 13 through an arm hook formed by extension. The push pawl 60 may also be disposed at the second end 122 of the feed region 12 to push the sample rack 90 at the second end 122 of the feed region 12 out to the discharge region 13. The pusher dog 60 is also in communication with and controlled by the controller to effect a particular action.
The invention also provides a sample rack conveying method. In one embodiment, a computer device for implementing the method is also provided. The computer device includes a memory having computer-readable instructions stored therein that, when executed by the controller, cause the controller to perform the sample rack transport method. In one embodiment, a computer-readable storage medium having computer-executable instructions stored thereon is also provided, which when executed by a controller, causes the controller to perform the sample rack transport method.
The sample rack transport method will be described below.
As shown in fig. 1, the support plate 10 for placing the sample rack 90 has a loading area 11, a feeding area 12, and an unloading area 13, the loading area 11 being connected to a first end 121 of the feeding area 12, and the unloading area 13 being connected to a second end 122 of the feeding area 12.
Referring also to fig. 2, a batch sample rack 90 to be inspected is placed in the loading area 11 of the support plate 10. The control finger 20 locks the finger 20 immediately after pushing the sample rack 90 in the Y1 direction from the loading zone 11 into the feeding zone 12. At this time, the pusher 20 abuts against the adjacent sample rack 90 on the loading area 11, no loading gap exists between the pusher 20 and the sample rack 90 for placing another sample rack 90, and the pusher 20 abuts against the adjacent sample rack 90 to prevent the existing sample rack 90 on the loading area 11 from being randomly moved.
Referring to fig. 3, the sample rack 90 pushed into the feeding area 12 is further conveyed by the bidirectional transmission mechanism 30 from the first end 121 toward the second end 122 along the direction X1, so that the measurement unit disposed adjacent to the feeding area 12 can sample and analyze the sample in each sample container 901 on the sample rack 90. The sample on the sample rack 90 may need to be reviewed and thus the sample rack 90 may also be retracted in the X2 direction for resampling. In one embodiment, the method further comprises the step of determining whether the information that the sample rack 90 needs to be retracted is received, wherein the information that the sample rack 90 needs to be retracted is sent by a measurement unit of a sample analyzer and can be received by a controller executing the sample rack transportation method. If the information that the sample rack 90 needs to be retracted is received, the bidirectional transmission mechanism 30 is controlled to retract the sample rack 90 entering the feeding area 12 from the second end 122 toward the first end 121 along the direction X2.
When the next sample holder 90 can be pushed from the loading area 11 into the feeding area 12, the pusher dog 20 is unlocked. Whether the next sample rack 90 can be pushed from the loading area 11 into the feeding area 12 is determined according to whether the sample rack 90 entering the feeding area 12 has enough space S in the feeding area 12. If the sample container 901 at any position of the sample rack 90 entering the feeding area 12 first is not interfered with the sample rack 90 entering the feeding area 12 later for the return and retest, it indicates that the sample rack 90 entering the feeding area 12 first has a sufficient return redundant space S. The size of the space S may be calculated according to the particular position at which the specimen rack 90 is advanced within the feed area 12.
If it is determined that the specimen rack 90 entering the feeding section 12 does not have sufficient space S for retraction redundancy, the pusher dog 20 is continuously locked. In one embodiment, while the finger 20 continues to be locked, it is also sensed whether the next sample holder 90 has entered the feed area 12. If the next sample rack 90 enters the feed zone 12, an alarm signal is generated.
If the sample rack 90 entering the feeding area 12 is judged to have enough space S for redundancy in retraction, the pusher dog 20 is unlocked.
In one embodiment, after unlocking the finger 20, the specific motion of the finger 20 is determined according to whether there are any sample racks 90 in the loading area 11. If there are sample racks 90 in the loading area 11, the control finger 20 moves in the direction Y1 to push the next sample rack 90 from the loading area 11 into the feeding area 12, and then the control finger 20 is locked again to wait for the next sample rack 90 to be pushed. If there is no sample rack 90 in the loading area 11, the finger 20 moves in the Y2 direction to be reset for pushing the sample rack 90 of the next batch.
In another embodiment, the unlocked finger 20 can be moved in the Y2 direction to reset without determining whether there is any sample rack 90 in the loading area 11. The reset finger 20, at the loading area 11, moves again in the Y1 direction to merge a new sample rack 90, which may be placed later, with the original sample rack 90, and pushes the next sample rack 90 closest to the feeding area 12 into the feeding area 12, and is then locked again, and so on.
As shown in fig. 5 and 6, after the next sample rack 90 is pushed into the feeding area 12, the bidirectional transmission mechanism 30 is controlled to splice the next sample rack 90 with the sample rack 90 sampled previously in the feeding area 12. The next sample rack 90 that enters later is spliced with the previously entered sample rack 90, so that the sampling process of the front and rear sample racks 90 is continuous, and the efficiency of sampling analysis is improved. After splicing, when a sample on the previous sample rack 90 needs to be rechecked, the bidirectional transmission mechanism pushes the previous sample rack to move along the X2 direction and drives the next sample rack to move along the X2 direction; when the unloading is needed after the reinspection is finished, the bidirectional transmission mechanism pushes the next sample rack to move along the X1 direction and drives the previous sample rack to move along the X1 direction.
As shown in fig. 7, after the sample rack 90 is subjected to sampling analysis, the pushing claw 60 is controlled to push the sample rack 90 from the feeding area 12 to the unloading area 13, and the user can remove the sample rack 90 from the unloading area 13. In one embodiment, it is also determined whether all samples in the sample holders 90 entering the feeding area 12 are confirmed for retest, so as to avoid the sample holders 90 that are not confirmed for retest from being illegally removed or improperly moved from the feeding area 12. The controller determines that all samples have been retested and confirmed when the controller receives the retested and confirmed information, and determines that all samples have not been retested and confirmed when the controller does not receive the retested and confirmed information. When all the samples in the sample rack 90 in the feeding area 12 are judged to be confirmed by the reinspection, the pushing claw can be controlled to push the sample rack 90 from the feeding area 12 to the unloading area 13. When all samples in the sample rack 90 in the feeding area 12 are judged not to be rechecked and confirmed, whether the sample rack 90 leaves the feeding area 12 or not is sensed in real time, and if the sample rack leaves the feeding area 12, an alarm signal is generated to remind a user that the sample rack 90 is abnormally conveyed.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A sample analyzer, comprising:
the device comprises a supporting plate, a feeding device and a discharging device, wherein a loading area, a feeding area and an unloading area are arranged on the supporting plate, the loading area is connected with a first end of the feeding area, and the unloading area is connected with a second end of the feeding area;
the pusher dog is arranged in the loading area and pushes the sample rack in the loading area into the feeding area;
a bidirectional transmission mechanism which is combined with the supporting plate and is used for bidirectionally conveying the sample rack into the feeding area;
an assay unit, disposed adjacent to the feeding zone, for sampling and analyzing samples within sample containers in the sample racks, and for retesting samples returned to the sample racks of the assay unit; and
and the controller is in communication connection with the pusher dog and the bidirectional transmission mechanism, and locks the pusher dog before the sample rack entering the feeding area has enough space for redundancy in the feeding area.
2. The sample analyzer of claim 1 further comprising a first sensor disposed at a first end of the feed area, wherein a sample rack entering the feed area senses a next sample rack entering the feed area and generates a first sensing signal before the sample rack has sufficient redundant space to retract within the feed area.
3. The sample analyzer of claim 1 or 2, further comprising a second sensor disposed at a second end of the feed zone, wherein the second sensor senses the exit of the sample rack from the feed zone and generates a second sensing signal before the sample rack entering the feed zone completes the confirmation of the review of all samples in the feed zone.
4. The sample analyzer of claim 3, further comprising an alarm that generates an alarm signal in response to a first sensing signal when the first end of the feeding area is provided with the first sensor and generates a first sensing signal that the sample rack illegally enters the feeding area, and generates an alarm signal in response to a second sensing signal when the second end of the feeding area is provided with the second sensor and generates a second sensing signal that the sample rack illegally exits the feeding area.
5. The sample analyzer of claim 1 further comprising a count sensor disposed within the feed zone for determining a position of the sample rack within the feed zone to determine whether the sample rack has sufficient redundant space for retraction within the feed zone.
6. The sample analyzer of claim 1, further comprising a baffle disposed above the first end of the feed zone.
7. The sample analyzer of claim 1, further comprising a pusher claw that transports the sample rack from the feeding area to the unloading area after all the samples in the sample rack in the feeding area have been retested and confirmed.
8. The sample analyzer of claim 7, wherein the push pawl is disposed at an unloading zone or the push pawl is disposed at a second end of a feeding zone.
9. The sample analysis method is characterized by being applied to a sample analyzer, wherein the sample analyzer comprises a support plate, a loading area, a feeding area and an unloading area are arranged on the support plate, the loading area is connected with a first end of the feeding area, and the unloading area is connected with a second end of the feeding area;
the pusher dog is arranged in the loading area and pushes the sample rack in the loading area into the feeding area;
a bidirectional transmission mechanism which is combined with the supporting plate and is used for bidirectionally conveying the sample rack into the feeding area;
an assay unit, disposed adjacent to the feeding zone, for sampling and analyzing samples within sample containers in the sample racks, and for retesting samples returned to the sample racks of the assay unit;
the sample analysis method comprises the following steps:
controlling a pusher dog to push the sample rack into a feeding area from a loading area, and then locking the pusher dog;
controlling a bidirectional transmission mechanism to convey the sample rack entering the feeding area from the first end to the second end;
and judging whether the sample rack entering the feeding area has enough redundant space for backing or not, if not, continuously locking the pusher dog, and if so, unlocking the pusher dog.
10. The method for analyzing samples according to claim 9, further comprising determining whether the sample rack needs to be retracted, and controlling the bidirectional transmission mechanism to retract the sample rack entering the feeding area from the second end toward the first end if the sample rack needs to be retracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211085393.1A CN115453133A (en) | 2017-06-19 | 2017-06-19 | Sample analyzer and sample analyzing method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467268.XA CN109142770B (en) | 2017-06-19 | 2017-06-19 | Sample rack transport device, sample rack transport method, sample analyzer, storage medium, and computer device |
| CN202211085393.1A CN115453133A (en) | 2017-06-19 | 2017-06-19 | Sample analyzer and sample analyzing method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467268.XA Division CN109142770B (en) | 2017-06-19 | 2017-06-19 | Sample rack transport device, sample rack transport method, sample analyzer, storage medium, and computer device |
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| Publication Number | Publication Date |
|---|---|
| CN115453133A true CN115453133A (en) | 2022-12-09 |
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| CN110297097B (en) * | 2019-06-26 | 2023-04-21 | 迈克医疗电子有限公司 | Sample rack resetting method, device and equipment |
| CN113791232B (en) * | 2021-09-17 | 2024-07-26 | 中元汇吉生物技术股份有限公司 | Sample rack driving and dispatching device, sample rack dispatching system and sample analyzer |
| CN113848334A (en) * | 2021-09-26 | 2021-12-28 | 中元汇吉生物技术股份有限公司 | Sample rack scheduling method and device, terminal equipment and storage medium |
| CN114660312A (en) * | 2022-05-24 | 2022-06-24 | 深圳市帝迈生物技术有限公司 | Sample analysis equipment |
| CN114755435B (en) * | 2022-06-13 | 2022-09-09 | 深圳市帝迈生物技术有限公司 | Sample detection control method, sample detection control device, sample analysis system, and medium |
| CN114755434B (en) * | 2022-06-13 | 2022-10-21 | 深圳市帝迈生物技术有限公司 | Sample analysis system, sample detection control method, sample detection control device, sample analysis controller, and medium |
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| CN102221624B (en) * | 2010-04-14 | 2014-02-12 | 深圳迈瑞生物医疗电子股份有限公司 | Sample rack delivery system and biochemical analyzer |
| CN202041537U (en) * | 2011-03-24 | 2011-11-16 | 长春迪瑞医疗科技股份有限公司 | Sample transfer device |
| JP5787574B2 (en) * | 2011-03-30 | 2015-09-30 | シスメックス株式会社 | Sample analysis system |
| CN104569461B (en) * | 2013-10-15 | 2016-08-10 | 深圳迈瑞生物医疗电子股份有限公司 | Sample rack vehicle and streamline and Transfer method |
| CN104569462B (en) * | 2013-10-15 | 2017-12-08 | 深圳迈瑞生物医疗电子股份有限公司 | The carrying device and method of a kind of sample container |
| CN204154729U (en) * | 2014-06-27 | 2015-02-11 | 珠海科域生物工程有限公司 | A kind of test tube rack feed arrangement |
| JP6573524B2 (en) * | 2015-10-07 | 2019-09-11 | 日本電子株式会社 | Sample rack transport apparatus and automatic analysis system |
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