WO2013002216A1 - 栓体開閉機構およびそれを備えた自動分析システム - Google Patents
栓体開閉機構およびそれを備えた自動分析システム Download PDFInfo
- Publication number
- WO2013002216A1 WO2013002216A1 PCT/JP2012/066271 JP2012066271W WO2013002216A1 WO 2013002216 A1 WO2013002216 A1 WO 2013002216A1 JP 2012066271 W JP2012066271 W JP 2012066271W WO 2013002216 A1 WO2013002216 A1 WO 2013002216A1
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- WIPO (PCT)
- Prior art keywords
- plug
- opening
- chuck
- closing
- analysis system
- Prior art date
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5082—Test tubes per se
- B01L3/50825—Closing or opening means, corks, bungs
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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
- G01N2035/00178—Special arrangements of analysers
- G01N2035/00277—Special precautions to avoid contamination (e.g. enclosures, glove- boxes, sealed sample carriers, disposal of contaminated material)
- G01N2035/00287—Special precautions to avoid contamination (e.g. enclosures, glove- boxes, sealed sample carriers, disposal of contaminated material) movable lid/cover for sample or reaction tubes
Definitions
- the present invention is provided with a plug opening / closing mechanism for automatically opening / closing a plug that can be attached to a container containing a liquid sample such as blood or urine, and the mechanism, for any container subjected to an opening processing.
- the present invention relates to an automatic analysis system that performs processing.
- the automatic analysis system is an analysis system that measures the physical properties of a sample (for example, a biological sample such as serum or urine, or a mixture of these and a reagent), a sample processing system that processes the sample prior to the physical property measurement of the sample, And, it includes any of a system in which the sample processing system and the analysis system are integrated.
- the automatic analysis system includes a processing unit that executes various processes such as a container opening process, a dispensing process, a container closing process, a stirring process, and an analysis process, and a transport device that transports a sample between the processing units.
- the container opening step is a step of opening the plug with respect to the sample container in a state where the plug is mounted.
- the dispensing step is a step of dispensing a part of the sample stored in the sample container after being opened and discharging it to another container.
- the container closing step is a step of closing the plug again on the sample container on which a predetermined step such as dispensing processing has been completed.
- the stirring process is a process of stirring the dispensed sample to homogenize the contents.
- the analysis step is a step of qualitatively and quantitatively measuring the contents of a specimen which has been dispensed and the reaction is in progress or the reaction is completed.
- Patent Documents 1 to 3 disclose prior art of an open / close device for opening and closing a sample container (hereinafter referred to as opening and closing processing) in a container opening step and a container closing step of a sample processing system. There are the opening and closing means described in.
- Patent Document 1 discloses a mechanism for automatically opening a stoppered test tube.
- a sample container of a type in which a plug made of rubber or synthetic resin is pressed in for plugging is a target of the opening processing. Therefore, it was not possible to open the sample container of the type that is closed by the screw stopper.
- Patent Document 3 discloses a stopper for closing a plurality of types of blood collection tubes having different lengths and thicknesses and a closing mechanism thereof. In this method, closure of multiple types of blood collection tubes can be performed by one type of stopper corresponding to multiple types of blood collection tubes.
- the cost for opening and closing processing increases, and a plug body to which the sample is attached There is concern about the problem that the
- the configuration of the present invention for achieving the above object is as follows.
- a first plug chuck for gripping a plug body a second plug chuck located below the first plug chuck, and a third plug disposed between the first and second plug chucks.
- the plug body is formed of rubber, plastic, or the like so that the sample contained in the sample container does not leak out, and may be a screw-in type screw plug or a press-in plug that is press-fitted. It may be
- the sample container is a container in which a sample to be measured is sealed, and it may be transferable even if it is mounted on a rack or mounted on a holder.
- the plug opening and closing mechanism may be anything as long as it is controlled so as to be able to perform plug opening processing to remove the plug and plug closing processing to attach the plug, preferably from the plug opening processing to the plug closing processing.
- Can hold and manage the plug body For example, one that performs holding and management by a robot arm, one that performs rotation holding and management by a turntable, and one that performs vertical holding and management by an elevator can be considered.
- holding and management of the plug body may be anything as long as contamination of the plug body and the container can be prevented. In general, those with shielding, those with suction and disposal, and those with cleaning and sterilization are generally used.
- the storage means for storing the opening / closing operation of the plug corresponding to the type of the plug and the transferred sample container
- the sample container is provided with determination means for specifying at least one of the presence or absence of the plug and the type of the plug, and a plug opening / closing mechanism for opening and closing the plug with respect to the sample container.
- a first plug chuck, a second plug chuck located below the first plug chuck, and a third plug chuck comprising an elastic body disposed between the first and second plug chucks.
- a clamp mechanism for controlling a gripping operation of the plug by the plurality of supports, and at least three supports for gripping the plug from a plurality of directions in the first to third plug chucks; Up and down movement Controlling the operation of the plug opening / closing mechanism on the basis of the type of plug identified by the discriminating means and the information on the opening / closing operation of the plug stored in the storage means.
- a control unit is provided.
- the sample processing system refers to various pretreatments such as centrifuging, child sample dispensing, opening, closing, bar-code labeling, etc. on the sample to analyze the sample with the automatic analyzer.
- an automatic analyzer may be included in the system, the system may be at least provided with an opening, closing, dispensing mechanism, and a transport mechanism for transporting the sample between them.
- the transport mechanism of the sample container may be anything as long as it can transport the rack and the holder. In general, belt conveyors, claws, and a robot arm are used.
- the opening and closing processes of the sample container can be performed by the same opening and closing mechanism provided in the automatic analysis system. This expands the choice of the sample container by the operator, and enables space saving and cost reduction of the system.
- FIG. 1 is an example of a configuration diagram of an automatic analysis system according to a first embodiment. It is an example of the biological sample and sample container which are input to an automatic analysis system. It is an example of the biological sample and sample container which are input to an automatic analysis system. It is an example of the biological sample and sample container which are input to an automatic analysis system. It is an example of the biological sample and sample container which are input to an automatic analysis system. It is an example of the biological sample and sample container which are input to an automatic analysis system. It is an example of the biological sample and sample container which are input to an automatic analysis system. It is an example of the figure explaining a plug opening and closing mechanism. It is an example of the enlarged view of a chuck mechanism. It is an example of the enlarged view of a chuck mechanism.
- a chuck mechanism It is an example of the enlarged view of a chuck mechanism. It is an example of the enlarged view of a chuck mechanism. It is an example of the enlarged view of a chuck mechanism. It is an example of the enlarged view of a chuck mechanism. It is an example of the expanded sectional view of a chuck mechanism. It is an example of the expanded sectional view of a chuck mechanism. It is an example of the figure explaining a chuck rotation mechanism. It is an example of the figure explaining the timing chart of a chuck mechanism.
- FIG. 1 is an example of the block diagram of the automatic analyzer according to the present embodiment.
- the automatic analysis system 100 in the present embodiment is a system that automatically analyzes components of a biological sample such as blood and urine.
- the main components are the sample loading unit 110, the transport mechanism 120, the stopper opening / closing mechanism 130, the sample dispensing mechanism 140, the reaction disk 150, the reagent disk 160, and the control computer 170 of the automatic analysis system.
- it may be a pretreatment system, or a system in which a pretreatment system and an analysis system are integrated.
- a specimen recognition unit 123 is installed around the transport mechanism 120, reads the barcode 104 (see FIG. 4E) attached to the specimen container 102 being transported, and obtains information for specifying the transported specimen 101.
- the recognition of the sample container 102 may be performed by a recording medium other than the barcode.
- the sample container may be provided with an RFID or the like, and the sample recognition unit 123 may be configured to read sample information (such as a sample ID) stored in the recording medium.
- the sample recognition means may be an imaging device such as a CCD.
- the plug detection unit 124 includes an imaging device such as a CCD, captures an image of the sample container 102 to obtain an image, analyzes the image, and opens the sample container 102 (attachment condition of the plug 103). The determination and the identification of the type of plug 103 are performed.
- the plug detection means 124 may specify the presence or absence of the plug and the type of the plug by a method other than plug detection by image recognition. For example, the light emitting element and the light receiving element may be disposed to face each other, and the output of the light receiving element may be detected to recognize the presence or absence of the plug and the type of the plug. It may be detected.
- the plug detection means 124 is preferably provided in the vicinity of the plug opening / closing mechanism 130 as shown in FIG. 1, for example. Before the opening and closing process, the image of the sample container 102 is taken to determine the type of stopper, and the optimum opening and closing method is instructed to the stopper opening and closing mechanism 130, and after the opening and closing is completed By checking the plug mounting condition, it is determined whether the opening and closing process has been properly performed. In the present embodiment, it is possible to use one plug detection means 124 as a check on the plug mounting condition before and after opening and closing. As another embodiment, in the case where the plurality of plug opening and closing mechanisms 130 are provided, it is also conceivable to provide plug detection means in front of the transport path which is conveyed to each of the plug opening and closing mechanisms 130. In this case, it is possible to transport the sample container to the plug opening / closing mechanism 130 that can perform the opening / closing processing most efficiently according to the type of plug.
- the plug opening / closing mechanism 130 has a function of opening the plug 103 of the transported sample container 102, a function of holding the removed plug 103, and the same plug 103 corresponding to the same sample container 102. Has the function of closing the plug.
- the sample dispensing mechanism 140 sucks a biological sample from the sample container 102 opened by the plug opening / closing mechanism 130 using a sample probe, and discharges it into a predetermined reaction cell 151 on the reaction disk 150.
- the reaction disk 150 comprises a reaction cell 151, a stirring mechanism 152, a detection mechanism 153, and a cleaning mechanism 154.
- the reaction cell 151 mixes the biological sample and the reagent and causes them to react.
- the stirring mechanism 152 stirs the mixture in the reaction cell 151 to promote the reaction between the two.
- the detection mechanism 153 measures the optical properties of the mixture in the reaction cell 151 and transfers the acquired data to the control computer 170.
- the cleaning mechanism 154 cleans the reaction cell 151 after the measurement.
- the reagent disk 160 stores reagents necessary for component analysis of a biological sample. Further, the reagent probe 161 sucks and discharges the reagent.
- the control computer 170 controls each operation described above and analyzes measurement data.
- the control computer can communicate with the means and mechanisms described above and with each carrier recognition means 126.
- FIGS. 2A to 2E show examples of the biological sample and the sample container 102 to be input to the automatic analysis system 100.
- FIG. 1
- the biological sample is enclosed in a dedicated sample container 102 after collection. Then, a dedicated plug 103 is attached to the sample container before the system is inserted to prevent the mixing of external substances.
- the plug 13 is a press-in plug (103a, 103b1, 103b2) (see FIGS. 2A, 2B1, 2B2 respectively) suitable for the type of the sample container 102, and a screw plug (103c, 103d, 103e) (each FIG. 2C). , FIG. 2D, and FIG. 2E) are attached.
- the plug body may be deeply inserted into the sample container, so the position at which the plug is gripped when opening and closing is performed is limited.
- An information medium such as a bar code 104 is attached to the outer peripheral surface of the sample container 102. Besides the barcode, a two-dimensional code or an RFID may be attached.
- the sample container 102 is mounted on a dedicated carrier 105 such as a holder or a rack, and moves in the automatic analysis system 100.
- FIG. 3 is an example of a diagram for explaining the plug opening / closing mechanism 130.
- the main components of the plug opening and closing mechanism 130 are an opening and closing arm mechanism 131, an opening and closing up and down mechanism 132, a clamp mechanism 134 for the sample container 102, and a chuck mechanism 133.
- the open / close arm mechanism 131 moves the chuck mechanism 133.
- the method of rotationally moving the chuck mechanism 133 about the rotation axis is disclosed in the drawings, the present invention is not limited to this method.
- an XY axis may be provided, and the plug chuck mechanism may be moved along the XY direction.
- the clamp mechanism 134 lifts and fixes the sample container 102 when opening and closing the stopper.
- the chuck mechanism 133 performs opening processing and closing processing of the plug 103. Moreover, it has a function to hold the plug after the opening processing until it is used for the closing processing.
- a disposal place of the plug 103 may be provided in the vicinity of the plug opening / closing mechanism 130 so that the removed plug can be discarded if the plug is not necessary. Further, the supply place of the plug 103 may be installed in the vicinity of the plug opening / closing mechanism 130. Thereby, it is possible to cope with the case of closing with the plug 103 exclusively for closing.
- a carrier recognition unit 126 is provided below the plug opening and closing mechanism 130.
- the carrier recognition unit 126 reads carrier ID information and sample ID information recorded on a recording medium of the carrier with respect to the carrier on which the sample container 102 transported to the stopper opening / closing mechanism 130 is mounted.
- the information for identifying the sample read by the sample recognition means 123 and the carrier ID information read by the carrier recognition means 126 are transmitted to the control computer 170, and the control computer 170 links the information of both and an automatic analysis system
- the unique information for identifying the sample container 102 is configured in 100.
- the transport mechanism 120 transports the sample container 102 to the automatic analysis system 100.
- Information on the sample container 102 transferred to the automatic analysis system 100 is transmitted to the control computer 170 via communication means in the automatic analysis system 100.
- the sample container 102 is automatically transported by the transport mechanism 120 to each mechanism in the automatic analysis system 100 using the reply to this communication as a trigger.
- the specimen recognition means 123 reads the bar code 104, and the carrier recognition means 126 reads the carrier ID information being used, and transmits it to the control computer 170.
- the control computer 170 associates the two pieces of information and configures unique information indicating the sample container 102 in the automatic analysis system 100.
- the plug detection unit 124 includes an imaging device such as a CCD, and analyzes the image of the sample container 102 to determine the opening status of the sample container 102 (presence or absence of the plug 103) and identify the type of the plug 103. .
- the plug detection means 124 may specify the presence or absence of the plug and the type of the plug by a method other than plug detection by image recognition.
- the light emitting element and the light receiving element may be disposed to face each other, and the output of the light receiving element may be detected to recognize the presence or absence of the plug and the type of the plug. It may be detected.
- the control computer 170 determines the processing content of the plug 103 (presence or absence of the plug opening processing, the plug opening / closing mechanism 130 to be used, operation parameters of each mechanism part, etc.) based on the analysis information, and sets the transport mechanism 120 as processing information. To direct.
- the plug opening / closing processing by the plug opening / closing mechanism 130 is performed on the carrier on which the sample container determined to require the opening processing by the control computer 170 is mounted.
- the carrier recognition unit 126 installed under the plug opening / closing mechanism 130 reads the carrier ID of the carrier on which the sample container is mounted, and transmits the carrier ID to the control computer 170.
- the plug opening and closing mechanism 130 has a function of holding the removed plug 103 until the plug closing processing described later is performed.
- the new sample container 102 is not opened.
- the plug after moving to the disposal place and being opened is discarded.
- the plug body 103 is grasped from the adjacent supply site 135 and used for the plugging process.
- the sample container 102 after the opening process is transported to the sample dispensing position 142 and subjected to the sample dispensing process in the order of arrival.
- the carrier recognition means 126 is also installed under the sample dispensing position 142, and when the carrier ID information is read, it is transmitted to the control computer 170.
- the control computer 170 stores, together with the carrier ID information, information that "the dispensing process is successful" in association.
- the sample container 102 after the dispensing is transported again to the stopper opening / closing mechanism 130 when the plugging process is required.
- the carrier ID information is read and transmitted to the control computer 170.
- the control computer 170 inquires the transmitted carrier ID information with the carrier ID information transmitted at the time of the opening process, and specifies the plug opening / closing mechanism 130 in which the opening process of the sample container 102 is performed.
- the control computer 170 determines the necessity of plugging processing based on the inquired information, and transports the sample container to the appropriate plug opening / closing mechanism 130.
- the necessity of the plugging process means, for example, the presence or absence of necessity of the plugging process, the type of the plug opening and closing mechanism 130 to be used, the operation parameter of each mechanism portion of the plug opening and closing mechanism 130 Processing information that conforms to the sample container 102, such as a position to grasp the normal torque range at the time of plugging processing, and the like.
- the carrier recognition unit 126 transmits the read carrier ID information to the control computer 170, and the control computer 170 stores the carrier ID and the information that "the plugging process is successful".
- the sample container 102 that has been subjected to the plug closing process is transported to the sample storage unit 111 along the flow of the transport mechanism 120.
- the sample container 102 is stored at the position instructed by the control computer 170.
- FIG. 4F, FIG. 4G, and FIG. 4H are examples of sectional views showing how the chuck mechanism 133 grips various stoppers.
- the plug opening and closing mechanism 130 which is a feature of the present invention, will be described with reference to FIGS. 4A to 4H.
- the chuck mechanism 133 is provided with a set of plug chuck portions 139 for gripping the plug 103.
- the plug chuck portion 139 has a plug chuck 139ab having a shape suitable for opening and closing processing of a press-fit plug (103a, 103b1, 103b2) and a plug chuck having a shape suitable for opening and closing processing for a screw plug (103c, 103d, 103e).
- 139 cd are arranged and configured to be separated up and down and overlap each other. Desirably, it arrange
- Each plug chuck is formed by a plurality of supports, and a space is provided at the center of the plurality of supports for gripping and holding the plug at the time of opening and closing.
- a space is provided at the center of the plurality of supports for gripping and holding the plug at the time of opening and closing.
- the space formed by the plurality of supports of plug chuck 139ab is smaller than the space formed by plug chuck 139cd, and the space formed by plug chuck 139e is further smaller than the space formed by plug chuck 139ab. It is configured to be small.
- the plug chucks are made of, for example, a metal such as stainless steel, and the plug chuck 139e is made of, for example, rubber. Further, the plug chuck 139ab and the plug chuck 139cd respectively have protrusions 139X and 139Z having a plurality of protrusions at portions in contact with the plug 103 (see FIGS. 4F and 4H, respectively).
- FIGS. 4A, 4B1, and 4B2 are views in which the chuck mechanism 133 in the present invention grips different types of press-fit plugs.
- the plug chucks 139ab of the press-fit plugs (103a, 103b1, 103b2) are spaced apart above the plug chucks 139cd of the screw plugs (103c, 103d, 103e).
- the protrusion 139X of the plug chuck 139ab in contact with the press-fit type plug 103 projects from the protrusion 139Z of the plug chuck 139cd in contact with the screw plug with respect to the plug. Therefore, when the chuck mechanism 133 grips the plug 103 in the space of the plug chuck, first, when the protrusion 139X of the plug chuck 139ab presses the plug 103 and the plug 103 is deformed and dented, the plug of the elastic body is next The chuck 139 e presses and holds the plug 103.
- the plug chuck 139ab grips the plug 103
- the protrusion 139X presses the plug, so that the chucking force is easily transmitted, and the plug 103 can be gripped so as not to slip.
- Further press-fitting causes the plug chuck 139e or the plug chuck 139cd having a large number of protrusions (preferably circular) to be in pressure contact, so that a load is applied unevenly in the circumferential direction to the plug body 103 by the opening processing. This can prevent the plug 103 from being deformed or scratched.
- the projection 139X of the plug chuck 139ab similarly fixes the plug 103, and the plug chuck 139cd and the plug chuck 139e transmit the force of the chuck mechanism to the plug 103, and the upper part of these plug chucks. Since the provided support portion 137 presses the plug 103 from above, it is possible to perform plugging processing while press-fitting from above.
- FIGS. 4C, 4D and 4E are views in which the chuck mechanism 133 in the present invention holds different types of screw plugs.
- the screw plug is a plug that can be opened and closed by screwing the plug in a specific direction, and in general, a plurality of non-slip grooves are provided on the outer peripheral surface of the plug so that the plug can be easily opened and closed.
- the stopper chucks 139 cd for the screw stoppers (103 c, 103 d, 103 e) are disposed below the stopper chucks 139 e made of an elastic body. Further, the protrusion 139Z of the stopper chuck 139cd is located at a position where it is recessed from the contact body (refer to 139Y in FIG. 4G) of the stopper chuck 139e of the elastic body with respect to the stopper.
- the plug chuck 139e of the elastic body comes in pressure contact with the plug 103, and when the plug chuck 139e is deformed and dented, the plug chuck 139cd having a large number of protrusions.
- the protruding portion 139Z of the connector is adapted to press the plug 103.
- the plug chuck 139ab having a protrusion 139X that protrudes with respect to the plug from the plug chuck 139cd contacts the plug, the plug may be scratched by the protrusion 139X.
- the chuck 139 ab instructs the descent amount of the opening and closing mechanism 132 so as to position the chuck mechanism 133 at such a height as not to contact the plug.
- the opening 137d of the support portion 137 provided on the upper portion of the stopper chuck can avoid interference with the cylindrical projection provided on the upper portion of the stopper 103d, the stopper can be securely gripped. It is possible.
- the elastic body of the plug chuck 139e protruding from the plug body and the protrusion 139Z of the plug chuck 139cd are fitted in the groove of the outer peripheral surface of the screw type plug 103, so that sliding occurs.
- the plug can be reliably opened and closed.
- the stopper chuck 139 cd and the stopper chuck 139 e have three or more supports, the stopper 103 can be grasped straight, and the failure of the opening / closing process due to the inclination of the holding of the stopper 103 can be suppressed. It becomes possible.
- the stopper chuck 139 e is made of an elastic body and has a circular protrusion, a large contact area with respect to the stopper 103 can be secured, and thus the chuck force can be efficiently transmitted. Further, as described above, when the plug chuck 139e or the plug chuck 139cd having a large number of protrusions (preferably in a circular shape) grips the plug 103, the chuck force on the plug 103 is the same as that of the plug. It is possible to prevent nonuniform application to the outer peripheral surface and to suppress deformation of the plug 103.
- the positional relationship in which the plug chucks 139ab, the plug chucks 139cd, and the plug chucks 139e are combined may be variable with respect to the direction in which the plug 103 is inserted. That is, the opening amount of each plug chuck can be variably controlled, and the plug is gripped lightly immediately after the start of the opening / closing operation to prevent deformation or damage of the plug, and the plug is strongly gripped at the end of the opening / closing operation. Thus, the plug can be reliably opened and closed. Thereby, it is possible to flexibly cope with the difference in the outer diameter, the material and the hardness of the plug 103, and any plug 103 can be opened and closed without failure. .
- the chuck mechanism 133 of the present invention is configured by combining the plug chuck 139ab and the plug chuck 139cd and the plug chuck 139e having shapes in consideration of the respective features, even if the plug body 103 is a press-in plug In either case of the screw plug, deformation, damage and slippage of the plug 103 can be prevented, so that gripping necessary for opening and closing becomes possible, and failure of the opening and closing process of the plug 103 can be avoided.
- FIG. 5 is an example of a schematic view of the chuck rotation mechanism 138. As shown in FIG.
- the chuck mechanism 133 includes a support portion 137 in contact with the upper end surface of the plug 103, a plug chuck 139 for gripping the outer peripheral surface of the plug 103, a chuck rotation mechanism 138 for gripping and rotating the plug 103, and a plug A force sensor 178 for detecting the torque applied to the chuck mechanism and an encoder 173 are roughly provided.
- the chuck rotation mechanism 138 can be rotated by the motor 171 in both the opening direction and the closing direction.
- the opening and closing mechanism 132 raises and lowers the closing direction by the opening and closing mechanism 132 not shown. Both are ready to work.
- the motor 171 and upper and lower motors not shown in the figure are controlled by the control computer 170 to drive these motors.
- the driving current of the motor 171 is detected by the ammeter 172 and input to the control computer 170, and the control computer 170 can calculate the torque from this current value.
- the motor 171 is provided with an encoder 173, and the control computer 170 can calculate the rotation angle of the chuck mechanism 133 by counting the pulses output by the rotation of the motor 171.
- a command signal for controlling the drive of the motor 171 is outputted from the control computer 170, and a torque command signal 174 for controlling the tightening torque of the plug 103 by the rotation of the chuck mechanism 133; It is possible to output a command signal 175 of the rotation angle and the rotation speed of
- FIGS. 3 to 5 An example of the opening and closing process of the plug 103 by the chuck mechanism 133 is shown using FIGS. 3 to 5.
- control computer 170 determines the content of the open / close process of the sample container 102 based on the analysis information.
- the contents of the opening and closing process may be registered in advance by the operator.
- the opening / closing mechanism 132 and the chuck rotating mechanism 138 are operated according to the instruction from the control computer 170, At the same time, the plugging process is performed to lift the plugging body 103, and at the time of plugging, the plugging process to push the plugging body 103 while rotating is performed.
- the screw plugs (103c, 103d, 103e)
- the control computer 170 while performing rotational operation different in rotational force or rotational speed from the case of the press-in plugging (103a, 103b1, 103b2) Performs up and down movement according to the screw pitch.
- the optimum opening / closing process can be realized by switching the operation parameters such as the rotational force and the number of rotations at the time of the opening / closing operation.
- the pressing force is large and the rotational torque is also large.
- the pressing force is small and the rotational torque is also small.
- the plug chuck portion 139 gripping the plug body 103 the selected chuck portion is used according to the information of the sample container 102 and the plug body 103 (in the case of the press-in plug, the plug chuck 139ab , In the case of screw plug, plug chuck 139 cd).
- the plug and chuck portion 139 can transmit the rotational torque by the chuck rotating mechanism 138 as the tightening torque required for the plug 103. In any case, it is possible that the plug 103 does not slide during rotational operation.
- the present invention is characterized by using a plug chuck portion 139 which simultaneously satisfies this contradictory requirement for the shape of the plug chuck portion 139.
- FIG. 6 is an example of a timing chart showing the flow of the opening and closing process, focusing on the vertical movement of the chuck mechanism 133 and the rotational operation and rotational torque of the chuck rotation mechanism 138 in the plug opening and closing mechanism 130.
- FIG. 6 shows the drive height of the chuck mechanism 133 by the opening / closing mechanism 132
- the middle part of FIG. 6 shows the rotational speed of the chuck rotating mechanism 138 by the motor 171
- FIGS. 3 to 6 An example of the opening and closing process of the plug 103 by the chuck mechanism 133 is shown using FIGS. 3 to 6.
- the sample container 102 is transported by the transport mechanism 120 and stopped at the open / close position of the plug opening / closing mechanism 130. This stage corresponds to before A of the timing chart at the top of FIG.
- the chuck mechanism 133 is lowered by the opening / closing mechanism 132 (upper part in FIG. 6, section A to B), and grips the plug 103 at position C. At this time, positioning of the chuck rotation mechanism 138 may be performed. In the middle part of FIG. 6, the chuck rotating mechanism 138 is rotated in the section B to C, and the position setting operation for returning to the origin is performed.
- the chuck mechanism 133 By driving of the motor 171, the chuck mechanism 133 starts to rotate from the upper position C in FIG. 6 and reaches the command rotation angle S0 at the D position and stops.
- the maximum rotational torque at this time is T0, which is a sufficiently high value so that the actual rotation follows the commanded rotation.
- T0 which is a sufficiently high value so that the actual rotation follows the commanded rotation.
- the chuck mechanism 133 is raised while being rotated in the opening direction, and at time D, the opening process ends.
- the chuck mechanism 133 holds the plug 103.
- the chuck mechanism 133 is positioned at this height until the sample subjected to the opening process ends the sample dispensing process and returns to the position of the plug opening / closing mechanism 130 (upper section E to F in FIG. 6) .
- the transport mechanism 120 transports the sample container 102 for which the sample dispensing process has been completed, and stops at the open / close position of the plug opening / closing mechanism 130.
- the chuck mechanism 133 rotates the chuck rotation mechanism 138 together with the lowering operation of the opening and closing mechanism 132 while holding the plug 103.
- a torque command signal 174 from the control computer 170 and a command signal 175 for the rotation speed and rotation angle are sent to the motor 171, and the plug 171 is gripped by the drive of the motor 171.
- the chuck mechanism 133 is rotated.
- the chuck mechanism 133 starts rotating from the point G in FIG. 6 at the upper stage G, and reaches the command rotational angle S1 at the point H and stops.
- the maximum value of the command torque is T1, which is a sufficiently high value so that the actual rotation follows the command rotation (turns the chuck mechanism 133 in the closing direction. Lowers in the G to H section, H The plugging process ends at this point).
- FIG. 6 shows an example of the rotational torque at the time of abnormality.
- a normal torque value range may be determined in advance, and it may be determined that an opening / closing process abnormality has occurred when the range is deviated, or a pattern of torque waveforms during normal opening / closing process may be stored.
- the determination of the plugging process may be similarly performed in the sections E to F.
- the chuck mechanism 133 holds the plug 103 at an angle, and in a state in which the plug 103 is pressed against the sample container 102 at an angle, it becomes an incomplete plugging state. It becomes possible to monitor a closure abnormality from a torque detection, a load detection, etc. when it has closed etc.
- the operator may be notified of this. For example, when the control computer 170 is provided with a display device, that effect may be displayed on the screen, or an alarm or indicator light may be turned on to draw attention. In this case, the operator visually confirms the condition of the sample, and performs recovery operation such as eliminating any abnormality cause. In addition, if it is in an incomplete plugging state, it may transition to a retry operation (open and then close again when detecting an abnormality) and complete plugging processing may be performed, and by performing such processing, normal operation It is possible to return to
- the plug and the sample container are associated with each other in order to plug the plug removed from the sample container by the opening processing into the same sample container.
- Control system and a plug chuck means for holding and managing a plug after opening, and the sample container which needs to be subjected to plugging processing can be plugged to the original plug, so that the plug Can be reliably used.
- it has a plurality of plug chucks that are compatible with the material of the plug and the type of opening / closing method, and has a control unit that switches opening / closing operations such as rotation angle and vertical drive according to the type of plug.
- the opening and closing process of a plurality of types of stoppers can be performed by the same opening and closing mechanism.
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Abstract
Description
合成樹脂などの硬い素材からなる栓体は、自動開栓処理を行う場合に、過度の荷重がかかって栓体外周面に傷がついたり、栓体形状が変形しないように留意する必要がある。また、栓体の種類によっては検体容器に対して深く挿入されていることがあるため、開栓処理および閉栓処理実行時に栓体を掴む位置が限られる。
このようにして、再び検体容器102が栓体開閉機構130に戻るように搬送されると閉栓処理が行われる。以上のようにすることで、検体容器102に対して、開栓処理前に元々装着していた栓体103を分注処理後の検体容器102に元通りに装着させることが可能となる。閉栓処理後、キャリア認識手段126は読み取ったキャリアID情報を制御コンピュータ170に送信し、制御コンピュータ170はキャリアIDと共に「閉栓処理が成功した」という情報を記憶する。
圧入栓(103a,103b1,103b2)の栓チャック139abは、スクリュー栓(103c,103d,103e)の栓チャック139cdの上側に離間され配置されている。圧入タイプの栓体103と接する栓チャック139abの突起部139Xは、スクリュー栓と接する栓チャック139cdの突起部139Zより栓に対して突出している。従って、チャック機構133が栓チャックのスペースに栓体103を掴む際、まず栓チャック139abの突起部139Xが栓体103を圧接し、栓体103が変形して凹むと、次に弾性体の栓チャック139eが栓体103を圧接して保持する。
また、栓チャックの上部に備えられた支持部137の開口部137dが、栓体103dの上部に設けられた円筒形の突起部との干渉を避けることができるため、栓体を確実に把持することが可能である。
以上のようにすることで、栓体に対して突出した栓チャック139eの弾性体、および、栓チャック139cdの突起部139Zがスクリュータイプの栓体103の外周面の溝にはまり込むため、すべることなく栓体を確実に開閉処理することができる。
また、栓チャック139cdと栓チャック139eが3枚以上の支持体を有することによって、栓体103を真っ直ぐ把持することができ、栓体103の保持が傾くことによる開閉処理の失敗を抑止することが可能となる。同時に、栓チャック139eが弾性体からなり円形状の突起部を有していることにより、栓体103に対する接触面積を大きく確保できるため、チャック力を効率的に伝達することができる。また前述したように、突起部の数を多くした(望ましくは円形状である)栓チャック139eまたは栓チャック139cdが栓体103を把持した時に、栓体103に対してのチャック力が栓体の外周面に不均一に加わることを防ぎ、栓体103の変形を抑止することが可能となる。
一方、制御コンピュータ170からは、モータ171の駆動を制御する指令信号を出力するようになっており、チャック機構133の回転による栓体103の締付けトルクを制御するトルク指令信号174と、栓体103の回転角度および回転速度の指令信号175を出力することが可能である。
102 検体容器
103 栓体
104 バーコード
105 キャリア
110 検体投入部
111 検体収納部
120 搬送機構
123 検体認識手段
124 栓検知手段
126 キャリア認識手段
130 栓体開閉機構
131 開閉アーム機構
132 開閉上下機構
133 チャック機構
134 クランプ機構
137 支持部
138 チャック回転機構
139 栓チャック部
140 検体分注機構
142 検体分注位置
150 反応ディスク
151 反応セル
152 攪拌機構
153 検出機構
154 洗浄機構
155 光源
160 試薬ディスク
170 制御コンピュータ
171 モータ
172 電流計
173 エンコーダ
174 トルク指令信号
175 回転速度の指令信号
176 データベース
177 判断手段
Claims (14)
- 栓体(103)を把持する第一の栓チャック(139ab)と、
前記第一の栓チャックの下方に位置する第二の栓チャック(139cd)と、
前記第一および第二の栓チャックの間に配置された第三の栓チャック(139e)と、を備え、
前記第一から第三の栓チャックは、栓体を複数の方向から把持する少なくとも3つの支持体を有し、
前記第三の栓チャックの支持体は弾性体からなることを特徴とする栓体開閉機構。 - 請求項1記載の栓体開閉機構であって、
前記第一の栓チャックの支持体および前記第二の栓チャックの支持体は少なくとも一つの突起部(139X,139Z)を有し、
前記第一の栓チャックおよび前記第二の栓チャックの突起部の形状は互いに異なることを特徴とする栓体開閉機構。 - 請求項2記載の栓体開閉機構であって、
前記第一の栓チャックの支持体が有する突起部(139X)は、前記第二の栓チャックの支持体が有する突起部(139Z)よりも栓体に対して突出していることを特徴とする栓体開閉機構。 - 請求項1~3のいずれかに記載の栓体開閉機構であって、
前記第三の栓チャック機構の支持体は、前記第一の栓チャックおよび前記第二の栓チャックの支持体よりも栓体に対して突出していることを特徴とする栓体開閉機構。 - 栓体(103)を着脱可能な検体容器(102)を搬送する搬送機構(120)を備えた自動分析システム(100)において、
第一の栓チャック(139ab)、第一の栓チャックの下方に位置する第二の栓チャック(139cd)、第一および第二の栓チャックの間に配置された第三の栓チャック(139e)からなり、
第一から第三の栓チャックにおいて栓体を複数方向から把持する少なくとも3つの支持体と、
前記支持体による栓体の把持動作を制御するクランプ機構(134)と、を有する栓体開閉機構(130)を備えたことを特徴とする自動分析システム。 - 請求項5記載の自動分析システムにおいて、
搬送された検体容器に対応した栓体の有無、栓体の種別の少なくともいずれかを特定する判別手段(124)と、
前記栓体開閉機構の上下動作を制御する上下機構(132)と、を備え、
前記判別手段によって特定された栓体の種別に基づいて、前記栓体開閉機構の動作を制御する制御部(170)を備えたことを特徴とする自動分析システム。 - 請求項6記載の自動分析システムであって、
前記制御部は、前記判別手段によって判別された栓体の種別に基づいて、前記栓体開閉機構の各支持体が前記栓体を把持する位置、前記栓体の回転角度、開閉処理に伴う前記上下機構の変位量、の少なくともいずれかを制御することを特徴とする自動分析システム。 - 請求項6記載の自動分析システムであって、
前記栓体開閉機構で開栓処理を実施する検体容器を搬送する搬送機構の近傍に、検体に関する情報を識別する識別手段(123,126)と、
前記識別手段によって識別した検体情報と、開栓処理が行われる前記栓体開閉装置に関する情報とを、対応付けて記憶する記憶機構(176)を備えたことを特徴とする自動分析システム。 - 請求項8記載の自動分析システムであって、
前記栓体開閉機構へ閉栓処理を実施する検体容器を搬送する搬送機構の近傍に、検体に関する情報を識別する識別手段(126)を備え、
前記制御部は、当該識別手段により識別された情報に基づいて、当該検体容器の栓体に対して開栓処理を実施した栓体開閉機構を特定し、当該栓体開閉機構に対して閉栓処理を行う検体容器を搬送するよう搬送機構を制御することを特徴とする自動分析システム。 - 請求項5~9のいずれかに記載の自動分析システムであって、
前記栓体開閉機構は、開栓処理によって取り外された栓体を、閉栓処理が実施されるまで保持していることを特徴とする自動分析システム。 - 請求項6~10のいずれか記載の自動分析システムであって、
前記第一から第三の栓チャックを回転動作させる回転機構(138)を備え、
前記栓体開閉機構が栓体を把持した状態で、前記回転機構によって栓体を回転させながら前記上下機構によって上下動させることを特徴とする自動分析システム。 - 請求項11記載の自動分析システムであって、
前記回転機構,上下機構の少なくともいずれかにかかる負荷を検知するセンサ(178)を備え、
前記制御部は、前記センサで検知された負荷が所定の範囲をはずれた場合に、開閉処理に異常が生じたと判断することを特徴とする自動分析システム。 - 請求項12記載の自動分析システムであって、
前記制御部が開閉処理の異常を検知した場合には、その旨を通知する通知手段を備えたことを特徴とする自動分析システム。 - 請求項12記載の自動分析システムであって、
前記制御部が開閉処理の異常を検知した場合には、開閉処理のリトライ動作を行うよう制御することを特徴とする自動分析システム。
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EP12804159.7A EP2728361B1 (en) | 2011-06-30 | 2012-06-26 | Stopper opening/closing mechanism and automatic analysis system provided therewith |
US14/129,667 US9505507B2 (en) | 2011-06-30 | 2012-06-26 | Cap opening and closing mechanism and automatic analyzer including the same |
JP2013522870A JP5775160B2 (ja) | 2011-06-30 | 2012-06-26 | 栓体開閉機構およびそれを備えた自動分析システム |
CN201280032495.5A CN103635808B (zh) | 2011-06-30 | 2012-06-26 | 栓体开闭机构及具备该栓体开闭机构的自动分析系统 |
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EP2728361A1 (en) | 2014-05-07 |
US20140174028A1 (en) | 2014-06-26 |
JPWO2013002216A1 (ja) | 2015-02-23 |
JP5775160B2 (ja) | 2015-09-09 |
CN103635808B (zh) | 2015-07-15 |
EP2728361B1 (en) | 2016-03-23 |
EP2728361A4 (en) | 2015-04-15 |
CN103635808A (zh) | 2014-03-12 |
US9505507B2 (en) | 2016-11-29 |
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