Sample rack conveyor and in vitro diagnostic equipment

Abstract

The present invention discloses a sample rack conveying device and an in vitro diagnostic device. The sample rack conveying device includes a sample rack conveying mechanism, a sample rack pushing mechanism, a lifting and limiting mechanism, and a barcode scanner. The sample rack conveying mechanism is provided with a conveying station and a conveying component capable of conveying the sample rack to the conveying station. The lifting and limiting mechanism is provided with a working station and a limiting component capable of limiting the sample rack on the working station. The working station is connected to the conveying station. The sample rack pushing mechanism is used to push the sample rack at the conveying station to the working station. The barcode scanner is used to obtain the sample rack information at the working station. The sample rack conveying device of the present invention has a simple structure, a small structural space, a low cost, and a wide adaptability.

Description

Technical Field

[0001] The present invention relates to the field of medical detection, and in particular to a sample rack conveying device and an in vitro diagnostic device. Background Art

[0002] In the field of medical testing, when testing samples, the sample rack needs to be transported to the analyzer for index testing. After the analyzer completes the test items, the samples are collected uniformly. The existing sample rack conveyor devices are all single belt conveyors or directly clamping samples on the pre-processing track. In actual use, the single belt conveyor has a large structural space and occupies a large area, which is easily limited by space in medical institutions such as hospitals; directly clamping the test samples on the pre-processing track and entering the analyzer will limit the layout of the analyzer and make it difficult to recycle the sample rack. Summary of the invention

[0003] Based on this, it is necessary to provide a sample rack conveying device and an in vitro diagnostic device with a simple structure, a small structural space, a low cost and a wide adaptability.

[0004] A sample rack conveying device comprises a sample rack conveying mechanism, a sample rack pushing mechanism, a lifting and limiting mechanism and a barcode scanner, wherein the sample rack conveying mechanism is provided with a conveying station and a conveying component capable of conveying the sample rack to the conveying station, the lifting and limiting mechanism is provided with a working station and a limiting component capable of limiting the sample rack on the working station, the working station is connected to the conveying station, the sample rack pushing mechanism is used for pushing the sample rack at the conveying station to the working station, and the barcode scanner is used for acquiring the sample rack information at the working station.

[0005] In one embodiment, the conveying assembly includes a conveying base, a conveying connecting belt and a conveying driving component. The conveying connecting belt is sleeved on the conveying base and the upper surface of the conveying connecting belt forms the conveying station. The conveying driving component is arranged on the conveying base to drive the conveying connecting belt to move.

[0006] In one embodiment, the transmission assembly further includes a transmission shaft and a transmission driving wheel, a transmission channel is provided on the transmission base, at least two horizontal transmission shafts are rotatably provided in the transmission channel, the transmission driving wheel is rotatably provided on the transmission base, the transmission shaft and the transmission driving wheel are connected by the transmission connecting belt, and the transmission driving component is connected to the transmission driving wheel;

[0007] And / or, the conveying assembly further comprises a guide plate, the guide plates are respectively arranged on both sides of the conveying channel, and the guide plates are close to the head end of the conveying connecting belt in the advancing direction;

[0008] And / or, the conveying component also includes a first conveying position sensor and a second conveying position sensor, which are arranged on the conveying base and close to the conveying station, the first conveying position sensor is located at the beginning of the forward direction of the conveying connecting belt, and the second conveying position sensor is located at the end of the forward direction of the conveying connecting belt.

[0009] In one embodiment, the conveying assembly further comprises a blocking plate, which is disposed on the conveying base and located at the end of the conveying connecting belt in the forward direction so as to prevent the sample rack from leaving the conveying station;

[0010] And / or, the conveying assembly further comprises a plurality of guide rollers, wherein the guide rollers are arranged on the conveying base and are located at least on one side of the conveying station along the advancing direction of the conveying connecting belt.

[0011] In one embodiment, the sample rack pushing mechanism includes a pushing base, a pushing driving component and a pushing plate, wherein the pushing plate is movably connected to the pushing base, the pushing driving component is connected to the pushing plate to drive the pushing plate to move, and the movement direction of the pushing plate is perpendicular to the conveying direction of the conveying assembly in the horizontal direction;

[0012] And / or, the sample rack pushing mechanism further includes a pushing guide rail, the pushing guide rail is disposed on the pushing base, and the pushing plate is slidably connected to the pushing guide rail.

[0013] In one embodiment, the sample rack pushing mechanism further includes a pushing conveyor belt, a pushing driving wheel and a pushing idle wheel, wherein the pushing driving wheel and the pushing idle wheel are rotatably connected to the pushing base, respectively, the pushing conveyor belt is connected to the pushing driving wheel and the pushing idle wheel, the pushing plate is connected to the pushing conveyor belt, and the pushing driving component can drive the pushing driving wheel to rotate forward or reversely;

[0014] And / or, the sample rack pushing mechanism further includes a pushing reducer, and the pushing reducer cooperates with the pushing driving wheel to achieve deceleration of the pushing driving wheel.

[0015] In one embodiment, the lifting limit mechanism includes a lifting limit base, a lifting limit substrate, a lifting limit rod and a limit driving component. The lifting limit substrate is movably connected to the lifting limit base and can move in a vertical direction along the lifting limit base. The working station is arranged on the lifting limit substrate. The lifting limit substrate is connected to the lifting limit rods distributed around the working station. The limit driving component is connected to the lifting limit substrate to drive the lifting limit substrate to move.

[0016] In one of the embodiments, the lifting limit mechanism also includes a lifting limit guide rail, a lifting limit slider, a lifting limit roller and a cam, the lifting limit guide rail is arranged on the lifting limit base and extends along the vertical direction, the lifting limit slider is fixedly connected to the lifting limit base plate and slidably connected to the lifting limit guide rail, the lifting limit slider has a long strip of make way channel, the lifting limit roller is rollingly connected in the make way channel, and the limit driving component is rotatably connected to the lifting limit roller through the cam.

[0017] In one embodiment, it also includes a sample rack recovery mechanism, which includes a recovery tray and a tray guide rail. A buffer station is provided on the recovery tray, and the working station is docked with the buffer station. The tray guide rail is provided on the recovery tray and extends to the buffer station and the working station.

[0018] An in vitro diagnostic device comprises the sample rack conveying device.

[0019] The sample rack conveying device of the present invention has a simple structure, a small structural space, a low cost and wide adaptability. When the sample rack conveying device of the present invention is used, after the sample rack is placed on the conveying component, no manual intervention is required. After the conveying component conveys the sample rack to the conveying station, the sample rack pushing mechanism pushes the sample rack at the conveying station to the working station, and the lifting and limiting mechanism limits and fixes the sample rack at the working station. The sample rack completes the sample suction or grabbing work at the working station, and the barcode scanner obtains the sample rack information at the working station. After the above process is completed, the lifting and limiting mechanism releases the sample rack, and the sample rack continues to be pushed to the defined position by the sample rack pushing mechanism for recycling.

[0020] The sample rack conveying device of the present invention is used to assist the sample tube to enter the conveying station by arranging a guide plate.

[0021] The sample rack conveying device of the present invention is used to detect whether the sample tube reaches the conveying position by arranging a first conveying position sensor and a second conveying position sensor.

[0022] The sample rack conveying device of the present invention can prevent the sample rack from leaving the conveying station by providing a blocking plate, thereby preventing the conveying component from conveying the sample tube beyond a predetermined position.

[0023] The sample rack conveying device of the present invention can realize deceleration control of the pushing driving wheel after rapid rotation by arranging the pushing speed reducer.

[0024] The sample rack conveying device of the present invention realizes the movement of the lifting and limiting substrate in the vertical direction by arranging the lifting and limiting guide rail, the lifting and limiting slider, the lifting and limiting roller and the cam, reduces the volume of the lifting and limiting mechanism, and reduces the occupied space of the entire sample rack conveying device.

[0025] The sample rack conveying device of the present invention can realize the recycling of sample racks after sampling by setting up a sample rack recycling mechanism, saving the time cost of manual recycling and having a high degree of recycling automation. During recycling, after the sample rack at the work station completes sampling or clamping of the sample tube, it is pushed onto the tray rail by the sample rack pushing mechanism. When the next sample rack is pushed onto the tray rail, it will push the previous sample rack forward along the tray rail by a distance of the thickness of the sample rack, and so on, until the sample racks on the tray rail are full. It can be seen that the sample rack recycling mechanism can directly rely on the sample rack pushing mechanism, and no special power support is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of an in vitro diagnostic setup according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of a sample tube injection identification device according to an embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of a sample bracket mechanism of the present invention;

[0029] Figure 4 for Figure 3 A side schematic diagram of the sample holder mechanism shown;

[0030] Figure 5 for Figure 4 A schematic diagram of a partial structure of a sample bracket mechanism shown;

[0031] Figure 6 This is a schematic diagram of the structure of a clamping component of a sample tube injection identification device according to an embodiment of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of a multi-directional motion component of a sample tube injection identification device according to an embodiment of the present invention;

[0033] Figure 8 A schematic diagram of a multi-station rotary barcode scanning device according to an embodiment of the present invention;

[0034] Fig. 9 A schematic diagram of a sample tube limiting mechanism in a multi-station rotary barcode scanning device according to an embodiment of the present invention;

[0035] Fig.10 It is a side view schematic diagram of a sample tube limiting mechanism according to an embodiment of the present invention;

[0036] Fig.11 A schematic diagram of a sample rack conveying device according to an embodiment of the present invention;

[0037] Fig.12 A schematic diagram of a sample rack conveying mechanism in a sample rack conveying device according to an embodiment of the present invention;

[0038] Fig.13 A schematic diagram of a sample rack pushing mechanism in a sample rack conveying device according to an embodiment of the present invention;

[0039] Fig.14 It is a schematic diagram of a lifting and limiting mechanism in a sample rack conveying device according to an embodiment of the present invention;

[0040] Fig.15 This is a flow chart of a method for automatically identifying a sample tube model according to an embodiment of the present invention.

[0041] Description of Reference Numerals

[0042] 1. In vitro diagnostic equipment; 10. Assembly line device; 20. Sample tube injection identification device; 21. Sample bracket mechanism; 211. Bracket; 2111. Through hole; 21111. Rounded corner structure; 212. Bottom plate; 2121. Boss; 21211. Fastening hole; 213. Support column; 214. Fastener; 22. Sample clamping mechanism; 221. Material clamping assembly; 2211. First clamping arm; 2212. Second clamping arm; 2213. Material clamping driving component; 2214. Anti-sticking component; 22141. Anti-sticking material pressing component; 221411. Anti-sticking pressure strip; 221412. Anti-sticking pressure block; 221413. Matching block; 22142. Anti-sticking base; 22143. Anti-sticking elastic component; 22144. Anti-sticking guide rail ; 22145, limit connection block; 22146, guide shaft; 222, multi-directional motion component; 2221, Y-axis module; 22211, Y-axis base; 22212, Y-axis drive component; 22213, Y-axis guide rail; 22214, Y-axis slider; 22215, Y-axis limit rod; 22216, Y-axis conveyor belt; 22217, Y-axis driven wheel; 22218, Y-axis driving wheel; 2222, Z-axis module; 22221, Z-axis base; 22222, Z-axis drive component; 22223, Z-axis guide rail; 22224, lead screw assembly; 22225, coupling; 2223, C-axis module; 22231, C-axis base; 22232, C-axis drive component; 22233, bearing seat; 2 2234, synchronous belt; 22235, synchronous wheel; 2224, mounting member; 230, identification mechanism; 30, multi-station rotary barcode scanning device; 310, rotating mechanism; 311, first rotating seat; 312, second rotating seat; 313, rotating driving component; 320, code scanning mechanism; 330, supporting mechanism; 331, supporting seat; 332, supporting frame; 340, sample tube limiting mechanism; 341, limiting fixed seat; 342, first limiting strip; 343, second limiting strip; 344, fixed base; 345, shock absorbing member; 40, sample rack conveying device; 41, sample rack conveying mechanism; 411, conveying station; 412, conveying assembly; 4121, conveying base; 4122, conveying connecting belt; 412 3. Transmission drive component; 4124. Transmission shaft; 4125. Transmission driving wheel; 4126. Guide plate; 4127. First transmission position sensor; 4128. Second transmission position sensor; 4129. Blocking plate; 41210. Guide roller; 42. Sample rack pushing mechanism; 421. Pushing base; 422. Pushing drive component; 423. Pushing plate; 424. Pushing guide rail; 425. Pushing conveyor belt; 426. Pushing idler wheel; 427. Pushing reducer; 43. Lifting limit mechanism; 431. Lifting limit base; 432. Lifting limit substrate; 433. Lifting limit rod; 434. Limiting drive component; 435. Lifting limit guide rail; 436. Lifting limit slider; 4361. Make way channel;437, lifting limit roller; 438, cam; 439, working station; 44, barcode scanner; 45, sample rack recovery mechanism; 451, recovery tray; 452, tray guide; 453, buffer station; 50, analyzer; 61, ordinary sample injection device; 62, emergency sample injection device; 70, cache device; 80, mobile sample loading device; 90, sample tube; 91, first specification sample tube; 92, second specification sample tube. ; DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0044] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "bottom", "inside" and "outside" used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] It should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements. That is, when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element at the same time. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0048] See also Figure 1 As shown, an embodiment of the present invention provides an in vitro diagnostic device 1.

[0049] An in vitro diagnostic device 1 includes a sample tube injection identification device 20, a multi-station rotary barcode scanning device 30, a sample rack conveying device 40, an analyzer 50, and a control device. The control device can be a PLC or a PID. The control device is not shown in the drawings.

[0050] See also Figure 2 As shown, the sample tube injection identification device 20 is used to obtain the encoder reading on the sample tube 90 and make a type judgment of the sample tube 90 according to preset information. The sample tube injection identification device 20 is also used to send the sample tube 90 after type judgment to the multi-station rotary barcode scanning device 30. The multi-station rotary barcode scanning device 30 is used to scan the barcode of the sample tube 90. The sample rack conveying device 40 is used to convey the sample rack for the sample clamping mechanism of the sample tube injection identification device 20 to clamp.

[0051] Specifically, in one embodiment, see Figure 2 As shown, the sample tube injection identification device 20 includes a sample bracket mechanism 21, a sample clamping mechanism 22 and an identification mechanism 230. The sample bracket mechanism 21 is used to accommodate the sample tube 90. The sample clamping mechanism 22 and the identification mechanism 230 are electrically connected to the control device, and the identification mechanism 230 is arranged on the sample clamping mechanism 22 to obtain the encoder reading on the sample tube 90 and make a type judgment of the sample tube 90 according to the preset information.

[0052] See also Figure 3-Figure 5 As shown, the sample holder mechanism 21 includes a bottom plate 212, a support column 213 and a bracket 211. The bracket 211 is located above the bottom plate 212, with a gap between the bottom plate 212 and the bracket 211. The bracket 211 is connected to the bottom plate 212 via the support column 213. The bracket 211 is provided with a through hole 2111 for placing the sample tube 90, and at least one end of the through hole 2111 is a chamfered structure.

[0053] There are multiple brackets 211, which are stacked in sequence. Each bracket 211 is provided with gaps between adjacent brackets 211 and between the brackets 211 and the bottom plate 212. The through holes 2111 on the brackets 211 of different layers are coaxially arranged, and each bracket 211 is connected to the bottom plate 212 via a support column 213. The sample tube 90 is accurately fixed by providing multiple layers of brackets 211, thereby avoiding the sample tube 90 from tilting.

[0054] A sample receiving groove is provided on the bottom plate 212 , and the through hole 2111 on the bracket 211 corresponds to the sample receiving groove.

[0055] In one embodiment, the support 211 has a plurality of through holes 2111 , and the bottom plate 212 has a plurality of sample receiving slots. The plurality of through holes 2111 on the support 211 corresponds one to one with the plurality of sample receiving slots on the bottom plate 212 .

[0056] In one embodiment, the plurality of through holes 2111 on the bracket 211 are distributed in an array.

[0057] In one embodiment, the bottom surface of the sample holding groove is curved. The curved structure facilitates contact and cooperation with the bottom surface of the sample tube 90 , thereby improving the stability of the sample tube 90 .

[0058] In one embodiment, both ends of the through hole 2111 are chamfered 21111. In the sample holder mechanism 21 of the present invention, both ends of the through hole 2111 of the bracket 211 are provided with rounded structures 21111, wherein the rounded corners on the upper surface of the bracket 211 guide the sample tube 90 when it is inserted; the rounded corners on the lower surface of the bracket 211 guide the sample tube 90 when it is pulled out, and the sample tube 90 will not get stuck even if it is dirty or has wrinkled barcode paper.

[0059] In one embodiment, the sample holder mechanism 21 further includes a fastener 214. The bracket 211 and the support column 213 are connected via the fastener 214.

[0060] In one embodiment, the bracket 211 has two layers. The upper surface of the bottom plate 212 has a boss 2121, and the boss 2121 penetrates a fastening hole 21211. The upper surface and the lower bottom surface of the bracket 211 are provided with countersunk holes that are connected and correspond to the fastening holes 21211. The corresponding countersunk holes between the two layers of the bracket 211 are embedded with support columns 213. The countersunk holes on the upper surface of the bracket 211 have fasteners 214 that are threadedly matched with the support columns 213, and the fastening holes 21211 have fasteners 214 that are threadedly matched with the support columns 213.

[0061] In one embodiment, fastener 214 may be a screw.

[0062] The sample holder mechanism 21 of the present invention has a simple structure and can accurately fix and position the sample tube 90. The sample holder mechanism 21 of the present invention can fix the sample tube 90. Due to the fixing method of the bottom plate 212 and the bracket 211, the high-precision positioning of the sample tube 90 can be achieved. The above-mentioned sample holder mechanism 21 does not have the complex structure of the traditional single-layer clamping spring-type sample holder, the mold opening cost is low, the positioning of the test tube is accurate, and it is convenient to cooperate with the multi-directional motion component 222 to grab the sample tube 90. In addition, the above-mentioned sample holder mechanism 21 can facilitate the taking and placing of the sample tube 90 by setting the chamfer structure 21111.

[0063] In a specific example, the sample clamping mechanism 22 includes a material clamping component 221 and a multi-directional motion component 222 connected to the material clamping component 221 , and the multi-directional motion component 222 is electrically connected to the control device.

[0064] See also Figure 6 As shown, the material clamping assembly 221 includes a first clamping arm 2211 and a second clamping arm 2212 which are arranged on the multi-directional drive assembly, and a material clamping driving component 2213 which connects the first clamping arm 2211 and / or the second clamping arm 2212. There is a gap between the first clamping arm 2211 and the second clamping arm 2212, and the gap forms a material clamping space. The material clamping driving component 2213 is installed on the multi-directional drive assembly, and the material clamping driving component 2213 is used to drive the first clamping arm 2211 and / or the second clamping arm 2212 to move so as to clamp or release the sample tube 90. The material clamping driving component 2213 is electrically connected to the control device.

[0065] The multi-directional motion assembly 222 is connected to the material clamping driving component 2213. The material clamping driving component 2213 can be a driving motor. The first clamping arm 2211 and the second clamping arm 2212 can be connected and rotated in opposite directions or opposite directions through a screw structure. The material clamping driving component 2213 can also be a driving cylinder, a driving motor, etc.

[0066] In a specific example, the material clamping driving component 2213 connects the first clamping arm 2211 and the second clamping arm 2212 to drive the first clamping arm 2211 and the second clamping arm 2212 to move.

[0067] In a specific example, the surfaces of the first clamp arm 2211 and the second clamp arm 2212 facing each other have one or more of grooves, convex points and convex strips for increasing the friction force with the sample tube 90. For example, the surfaces of the first clamp arm 2211 and the second clamp arm 2212 facing each other have grooves for increasing the friction force with the sample tube 90, and the inner diameter of the groove is between 0.1 mm and 1 mm; for example, the surfaces of the first clamp arm 2211 and the second clamp arm 2212 facing each other have convex points for increasing the friction force with the sample tube 90, and the outer diameter of the convex points is between 0.1 mm and 1 mm; for example, the surfaces of the first clamp arm 2211 and the second clamp arm 2212 facing each other have convex points for increasing the friction force with the sample tube 90, and the length of the convex strip is 1 mm to 2 mm, and the width of the convex strip is 0.1 mm to 0.5 mm. It is not difficult to understand that in other embodiments, the opposing surfaces of the first clamp arm 2211 and the second clamp arm 2212 may be of a rough structure, as long as the purpose of increasing the friction between the opposing surfaces of the first clamp arm 2211 and the second clamp arm 2212 and the sample tube 90 can be achieved.

[0068] In a specific example, the opposing surfaces of the first clamp arm 2211 and the second clamp arm 2212 are both in the shape of inwardly concave curved surfaces, so that the opposing surfaces of the first clamp arm 2211 and the second clamp arm 2212 can adapt to the outer wall of the sample tube 90, thereby improving the firmness of the grip.

[0069] In a specific example, the clamping assembly 221 further includes an anti-adhesion component 2214. The anti-adhesion component 2214 includes an anti-adhesion pressing piece 22141, an anti-adhesion base 22142, and an anti-adhesion elastic piece 22143. The anti-adhesion base 22142 is installed on the multi-directional driving assembly, a part of the anti-adhesion pressing piece 22141 is arranged between the first clamping arm 2211 and the second clamping arm 2212, and the anti-adhesion elastic piece 22143 is arranged between the anti-adhesion pressing piece 22141 and the anti-adhesion base 22142. When the anti-adhesion elastic piece 22143 is in a compressed and reset state, the anti-adhesion pressing piece 22141 does not protrude from the clamping space, that is, when the anti-adhesion elastic piece 22143 is in a compressed and reset state, the ends of the anti-adhesion pressing piece 22141 located in the clamping space do not protrude from the clamping space.

[0070] In a specific example, the anti-adhesion component 2214 further includes an anti-adhesion guide rail 22144. The anti-adhesion guide rail 22144 is installed on the anti-adhesion base 22142, and the extension direction of the anti-adhesion guide rail 22144 is consistent with the axial direction of the anti-adhesion pressing piece 22141. The anti-adhesion pressing piece 22141 is slidably connected to the anti-adhesion guide rail 22144.

[0071] In a specific example, the anti-adhesion component 2214 further includes a limiting connection block 22145 and a guide shaft 22146. The limiting connection block 22145 is connected to the anti-adhesion base 22142, the guide shaft 22146 is connected to the limiting connection block 22145, and the anti-adhesion elastic member 22143 extends along the guide shaft 22146 and can telescopically move along the axial direction of the guide shaft 22146.

[0072] In a specific example, the anti-adhesion pressing piece 22141 includes an anti-adhesion pressure strip 221411 and an anti-adhesion pressure block 221412. The anti-adhesion pressure strip 221411 is connected to the anti-adhesion pressure block 221412, a part of the anti-adhesion pressure strip 221411 is arranged between the first clamping arm 2211 and the second clamping arm 2212, and the anti-adhesion pressure block 221412 is slidably connected to the anti-adhesion guide rail 22144.

[0073] In a specific example, the anti-adhesion pressing piece 22141 further includes a matching block 221413. The matching block 221413 is connected to the anti-adhesion pressing block 221412, and the matching block 221413 is also matched with the anti-adhesion elastic connection.

[0074] In a specific example, one end of the guide shaft 22146 is fixed on the limiting connecting block 22145, a part of the anti-sticking pressing piece 22141 is passed through the guide shaft 22146 and can move along the guide shaft 22146, and one end of the anti-sticking elastic piece 22143 is passed through the matching block 221413.

[0075] In a specific example, the anti-sticking elastic member 22143 is an anti-sticking spring. The anti-sticking elastic member 22143 is sleeved on the guide shaft 22146.

[0076] The sample tube injection identification device 20 of the present invention is provided with a clamping assembly 221, which can effectively prevent the sample tube 90 from sticking when clamping the sample tube 90, and avoid related faults and problems caused by the sample tube 90 sticking to the clamping arm. When the clamping assembly 221 of the present invention is in use, the clamping assembly 221 moves to the sample tube 90, and the clamping drive component 2213 drives the first clamping arm 2211 and the second clamping arm 2212 to open. The clamping assembly 221 is driven by the connected multi-directional motion assembly 222 to move above the sample tube 90, and the first clamping arm 2211 and the second clamping arm 2212 are gradually pressed down to both sides of the sample tube 90. When the sample tube 90 contacts the anti-sticking pressing piece 22141, the anti-sticking elastic piece 22143 is compressed. When the anti-sticking elastic piece 22143 is compressed to a certain position, The material clamping driving component 2213 drives the first clamping arm 2211 and the second clamping arm 2212 to close and clamp the sample tube 90, and the multi-directional motion component 222 drives the material clamping component 221 to move to a predetermined position. The material clamping driving component 2213 drives the first clamping arm 2211 and the second clamping arm 2212 to open. At this time, the anti-sticking elastic part 22143 gradually returns to its original position under the action of the elastic restoring force, so that the sample tube 90 is separated from the first clamping arm 2211 and the second clamping arm 2212, and the multi-directional motion component 222 drives the material clamping component 221 to return to its original position, thereby achieving the anti-sticking of the sample tube 90.

[0077] The sample tube injection identification device 20 of the present invention can realize automatic identification and sorting of sample tubes 90. It can automatically identify sample tubes 90 of various specifications and realize compatibility with sample tubes 90 of various models. There is no need for manual participation in sorting, which reduces labor costs, saves labor time, and greatly reduces testing and inspection costs. Automatic identification speeds up sorting and improves sorting efficiency. When in use, sample tubes 90 do not need to be manually sorted and placed in the analyzer 50. The sample tube injection identification device 20 of the present invention can quickly realize model identification and sorting of sample tubes 90, as well as subsequent sending for testing or sending to a capping mechanism to remove the cap, and the degree of automation is greatly improved. The automatic identification method of the sample tube 90 model of the present invention is easy to operate, requires less manual participation, and has a high degree of automation.

[0078] See also Figure 7 As shown, the multi-directional motion assembly 222 includes a Y-axis module 2221, a Z-axis module 2222, a C-axis module 2223, and a mounting member 2224. The Z-axis module 2222 is arranged on the Y-axis module 2221 and can move along the Y-axis direction under the drive of the Y-axis module 2221, the C-axis module 2223 is arranged on the Z-axis module 2222 and can move along the Z-axis direction under the drive of the Z-axis module 2222, and the mounting member 2224 is arranged on the C-axis module 2223 and can rotate in a plane parallel to the Y-axis and perpendicular to the Z-axis under the drive of the C-axis module 2223.

[0079] In a specific example, the Y-axis module 2221 includes a Y-axis base 22211 and a Y-axis driving component 22212, the Z-axis module 2222 is slidably connected to the Y-axis base 22211 and can move along the Y-axis direction, and the Y-axis driving component 22212 is connected to the Z-axis module 2222 to drive the Z-axis module 2222 to move. The Y-axis driving component 22212 is electrically connected to the control device.

[0080] In a specific example, the Y-axis module 2221 also includes a Y-axis guide rail 22213 , which is fixed to the Y-axis base 22211 and extends along the Y-axis direction, and the Z-axis module 2222 is slidably connected to the Y-axis guide rail 22213 .

[0081] In a specific example, the Y-axis module 2221 also includes a Y-axis slider 22214 and a Y-axis limit rod 22215 , the Z-axis module 2222 is connected to the Y-axis slider 22214 , and the Y-axis slider 22214 is slidably connected to the Y-axis guide rail 22213 and the Y-axis limit rod 22215 .

[0082] In a specific example, the Y-axis module 2221 also includes a Y-axis conveyor belt 22216, a Y-axis driven wheel 22217 and a Y-axis driving wheel 22218. The Y-axis driven wheel 22217 and the Y-axis driving wheel 22218 are distributed at both ends of the Y-axis direction. The Y-axis driven wheel 22217 and the Y-axis driving wheel 22218 are connected through the Y-axis conveyor belt 22216. The Y-axis driven wheel 22217 is connected to the Y-axis driving component 22212, and the Y-axis slider 22214 is connected to the Y-axis conveyor belt 22216.

[0083] In a specific example, the Y-axis driving component 22212 is a Y-axis driving motor.

[0084] In a specific example, the Z-axis module 2222 includes a Z-axis base 22221 and a Z-axis driving component 22222. The Z-axis base 22221 is connected to the Y-axis module 2221, the C-axis module 2223 is slidably connected to the Z-axis base 22221 and can move along the Z-axis direction, and the Z-axis driving component 22222 is connected to the C-axis module 2223 to drive the C-axis module 2223 to move. The Z-axis driving component 22222 is electrically connected to the control device.

[0085] In a specific example, the Z-axis module 2222 also includes a Z-axis guide rail 22223 , which is fixed to the Z-axis base 22221 and extends along the Z-axis direction, and the C-axis module 2223 is slidably connected to the Z-axis guide rail 22223 .

[0086] In a specific example, the Z-axis module 2222 also includes a screw assembly 22224 , which is mounted on the Z-axis base 22221 , and the Z-axis driving component 22222 is connected to the C-axis module 2223 via the screw assembly 22224 .

[0087] Furthermore, the Z-axis module 2222 also includes a coupling 22225. The Z-axis driving component 22222 and the lead screw assembly 22224 are connected via the coupling 22225.

[0088] Preferably, the Z-axis driving component 22222 can be a Z-axis motor.

[0089] In a specific example, the C-axis module 2223 includes a C-axis base 22231 and a C-axis driving component 22232. The C-axis base 22231 is connected to the Z-axis module 2222, the mounting seat is rotatably connected to the C-axis base 22231, and the C-axis driving component 22232 is connected to the mounting seat to drive the mounting seat to rotate. The C-axis driving component 22232 is electrically connected to the control device.

[0090] Furthermore, the C-axis module 2223 includes a bearing seat 22233. The C-axis base 22231 is connected to the Z-axis base 22221 through the bearing seat 22233.

[0091] Preferably, the C-axis module 2223 also includes a synchronous belt 22234 and a synchronous wheel 22235 ; the C-axis driving component 22232 is connected to the mounting seat via the synchronous belt 22234 and the synchronous wheel 22235 .

[0092] The present invention aims to solve the problems of large space occupied by the current sample injection unit manipulator in the medical industry, large moving body mass, large friction, low transmission efficiency, and low acceleration under the same driving force. The present invention also proposes a new multi-directional motion component. The multi-directional motion component 222 of the present invention uses two linear axes and a rotating module to realize the sample injection function of the manipulator, achieving the purpose of light structure, small moving mass, small friction, and high transmission efficiency; under the same driving force, it has a higher acceleration than the traditional manipulator. In addition, the multi-directional motion component 222 of the present invention has a relatively simple structure, low cost, easy operation, and can realize external space expansion action.

[0093] See also Figure 8As shown, the multi-station rotary barcode scanning device 30 includes a rotating mechanism 310 and a code scanning mechanism 320. The rotating mechanism 310 includes a plurality of rotatable rotating seats. The code scanning mechanism 320 and the plurality of rotating seats are sequentially arranged in a row. There are intervals between the code scanning mechanism 320 and the rotating seats, and between adjacent rotating seats. At least two of the plurality of rotating seats are used to place sample tubes 90 of different lengths, and the height difference between the two rotating seats is equal to the height difference between the two sample tubes 90 (the two sample tubes 90 have different lengths, i.e., different specifications). The rotating mechanism 310 and the code scanning mechanism 320 are electrically connected to the control device.

[0094] In a specific example, see Figure 8 As shown, the rotating seat includes a rotatable first rotating seat 311 and a rotatable second rotating seat 312. The code scanning mechanism 320, the first rotating seat 311 and the second rotating seat 312 are arranged in sequence, and there is a gap between the code scanning mechanism 320 and the first rotating seat 311, and between the first rotating seat 311 and the second rotating seat 312. The first rotating seat 311 is used to place a shorter first-specification sample tube 91, and the second rotating seat 312 is used to place a longer second-specification sample tube 92. The height difference between the first rotating seat 311 and the second rotating seat 312 is equal to the height difference between the first-specification sample tube 91 and the second-specification sample tube 92. When the rotating seat includes a rotatable first rotating seat 311 and a rotatable second rotating seat 312, the multi-station rotary barcode scanning device 30 also constitutes a double-station rotary barcode scanning device.

[0095] For example, see Figure 1 As shown, the length of the first specification sample tube 91 is 75mm, and the length of the second specification sample tube 92 is 100mm. Then the second rotating seat 312 is 25mm higher than the first rotating seat 311, and the second specification sample tube 92 with a height of 100mm is placed on the second rotating seat 312, and the first rotating seat 311 is placed on the first specification sample tube 91 with a height of 75mm; the distance between the code scanning mechanism 320 and the first rotating seat 311 is 80mm, and the scanning width of the code scanning mechanism 320 is about 100mm, which can completely cover the first specification sample tube 91; the distance between the code scanning mechanism 320 and the second rotating seat 312 is 135mm, and the scanning width of the code scanning mechanism 320 is about 180mm, which can completely cover the second specification sample tube 92. The center of the code scanning mechanism 320 is on the same horizontal line as the center of the first specification sample.

[0096] In a specific example, see Figure 1As shown, the rotating mechanism 310 also includes a rotating driving component 313. The rotating driving component 313 is connected to the first rotating seat 311 and the second rotating seat 312. The rotating driving component 313 drives the first rotating seat 311 and the second rotating seat 312 to rotate at a constant speed. The rotating driving component 313 is electrically connected to the control device. There can be two rotating driving components 313. When the number of the rotating driving components 313 is two, the two rotating driving components 313 are respectively connected to and control the first rotating seat 311 and the second rotating seat 312. The control device can control the rotating driving component 313 to drive the rotation cycle of the first rotating seat 311 and the second rotating seat 312, that is, the number of turns. For example, the control device can control the rotating driving component 313 to drive the first rotating seat 311 and the second rotating seat 312 to rotate 1 / 3 circle, 1 / 2 circle, etc. In this way, the code scanning mechanism 320 can complete the code scanning work of a sample tube 90 by scanning the code 3 times or 2 times.

[0097] In a specific example, see Figure 1 As shown, the multi-station rotary barcode scanning device 30 further includes a supporting mechanism 330. The supporting mechanism 330 includes a supporting seat 331, and the first rotating seat 311 and the second rotating seat 312 can be rotatably connected to the supporting seat 331.

[0098] In a specific example, see Figure 1 As shown, the support mechanism 330 further includes a support frame 332. The support frame 332 is connected to the support seat 331, and the code scanning mechanism 320 is arranged on the support frame 332.

[0099] In a specific example, see Fig. 9 and Fig.10As shown, the multi-station rotary barcode scanning device 30 also includes a sample tube limiting mechanism 340. The sample tube limiting mechanism 340 is respectively provided on the first rotating seat 311 and the second rotating seat 312, and the sample tube limiting mechanism 340 is respectively used to limit the position of the first specification sample tube 91 and the second specification sample tube 92. The multi-station rotary barcode scanning device 30 of the present invention is provided with a sample tube limiting mechanism 340 to limit the position of the sample tube 90, so as to prevent the sample tube 90 from moving when the first rotating seat 311 or the second rotating seat 312 rotates. Specifically, the sample tube limiting mechanism 340 is used to limit the position of the sample tube 91 of the first specification. When the sample tube 91 of the first specification is placed on the first rotating seat 311, the sample tube limiting mechanism 340 limits the sample tube 91 of the first specification to prevent the sample tube 91 of the first specification from being displaced, thereby improving the efficiency of code scanning. The sample tube limiting mechanism 340 is used to limit the position of the sample tube 92 of the second specification. When the sample tube 92 of the second specification is placed on the second rotating seat 312, the sample tube limiting mechanism 340 limits the sample tube 92 of the second specification to prevent the sample tube 92 of the second specification from being displaced, thereby improving the efficiency of code scanning.

[0100] In a specific example, see Fig. 9 and Fig.10 As shown, the sample tube limiting mechanism 340 includes a limiting fixing seat 341 and a first limiting strip 342. The first limiting strip 342 is installed on the limiting fixing seat 341, and a plurality of first limiting strips 342 are arranged on the limiting fixing seat 341. There is a gap between adjacent first limiting strips 342, and a plurality of first limiting strips 342 surround a limiting space for accommodating a first specification sample tube 91 or a second specification sample tube 92. The sample tube limiting mechanism 340 of the multi-station rotary barcode scanning device 30 of the present invention includes a limiting fixing seat 341 and a first limiting strip 342, and a plurality of first limiting strips 342 are arranged on the limiting fixing seat 341, and a plurality of first limiting strips 342 surround a limiting space for accommodating a first specification sample tube 91 or a second specification sample tube 92. Such an arrangement can facilitate the placement of the first specification sample tube 91 or the second specification sample tube 92 into the limiting space, making it easy to take, saving time and effort.

[0101] In a specific example, the first limit strip 342 is elastic. Preferably, the first limit strip 342 can be a spring steel wire, a spring steel bar, or an elastic filamentary structure made of other metal materials. The first limit strip 342 is elastically set to achieve its own bending and resetting. When it is necessary to insert the first specification sample tube 91 or the second specification sample tube 92, the first limit strip 342 can be manually pulled outward to facilitate the insertion of the first specification sample tube 91 or the second specification sample tube 92, or when the outer diameter of the first specification sample tube 91 or the second specification sample tube 92 is slightly larger than the radial dimension of the limiting space, the elastic deformation of the first limit strip 342 can be adapted to the first specification sample tube 91 or the second specification sample tube 92, without the need to replace the limiting mechanism, thereby increasing the adaptability range.

[0102] Furthermore, the first limiting strip 342 is a filament-like structure, and the diameter of the first limiting strip 342 is 1 mm-5 mm. For example, the diameter of the first limiting strip 342 is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or other non-integer values. The diameter of the first limiting strip 342 is not easy to be too small. If the diameter of the first limiting strip 342 is less than 1 mm, the strength is low, and the first specification sample tube 91 or the second specification sample tube 92 cannot be well limited and fixed. The diameter of the first limiting strip 342 is not easy to be too large. If the diameter of the first limiting strip 342 is greater than 5 mm, on the one hand, the cost is high, and on the other hand, the spacing between adjacent first limiting strips 342 will be reduced, the range of code scanning will be reduced, and the accuracy of code scanning will be reduced.

[0103] In a specific example, one end of the first limiting strip 342 away from the limiting fixing seat 341 is bent to form a first bent portion, and the end portion extends outward.

[0104] The setting of the first bending portion can play a role in clamping the first-specification sample tube 91 or the second-specification sample tube 92. Since the first bending portion tends to be within the limiting space, that is, the spacing formed by the multiple first bending portions is smaller than the radial dimension of the limiting space, the first-specification sample tube 91 or the second-specification sample tube 92 can be clamped. Even if the outer diameter of the first-specification sample tube 91 or the second-specification sample tube 92 is smaller than the radial dimension of the limiting space, the first-specification sample tube 91 or the second-specification sample tube 92 can be limited and fixed by the clamping effect of the multiple first bending portions.

[0105] In a specific example, one end of the first limiting strip 342 away from the limiting fixing seat 341 is bent toward the limiting space to form a first bending portion. The multi-station rotary barcode scanning device 30 of the present invention is configured to bend one end of the first limiting strip 342 away from the limiting fixing seat 341 and the end portion extends outward, so that the end portion of each first limiting strip 342 extends outward, the opening becomes larger, and it is convenient for the first specification sample tube 91 or the second specification sample tube 92 to be placed in the limiting space.

[0106] In a specific example, the sample tube limiting mechanism 340 also includes a second limiting bar 343. The second limiting bar 343 is installed on the limiting fixing seat 341, and a plurality of second limiting bars 343 are arranged on the limiting fixing seat 341. There is a gap between adjacent second limiting bars 343. The length of the second limiting bar 343 is greater than the length of the first limiting bar 342. The plurality of second limiting bars 343 and the first limiting bar 342 together form a limiting space. The multi-station rotary barcode scanning device 30 of the present invention is provided with a plurality of second limiting bars 343, and the plurality of second limiting bars 343 and the first limiting bar 342 together form a limiting space for accommodating the first specification sample tube 91 or the second specification sample tube 92. The second limiting bar 343 is longer than the first limiting bar 342. Such a setting can be used for placing a plurality of first specification sample tubes 91 or second specification sample tubes 92 of different lengths into the limiting space, which is convenient to take and has wide adaptability.

[0107] In a specific example, the second limit strip 343 is elastic. Preferably, the second limit strip 343 can be an elastic filamentary structure made of spring steel wire, spring steel bar, or other metal materials. The second limit strip 343 is elastically set to achieve its own bending and resetting. When it is necessary to insert the first specification sample tube 91 or the second specification sample tube 92, the second limit strip 343 can be manually pulled outward to facilitate the insertion of the first specification sample tube 91 or the second specification sample tube 92, or when the outer diameter of the first specification sample tube 91 or the second specification sample tube 92 is slightly larger than the radial size of the limit space, the elastic deformation of the second limit strip 343 can be adapted to the first specification sample tube 91 or the second specification sample tube 92, without the need to replace the limit mechanism, thereby increasing the adaptability range.

[0108] Furthermore, the second limit strip 343 is a filament-like structure, and the diameter of the second limit strip 343 is 1 mm-5 mm. For example, the diameter of the second limit strip 343 is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or other non-integer values. The diameter of the second limit strip 343 is not easy to be too small. If the diameter of the second limit strip 343 is less than 1 mm, the strength is low, and the second specification sample tube 92 or the second specification sample tube 92 cannot be well limited and fixed. The diameter of the second limit strip 343 is not easy to be too large. If the diameter of the second limit strip 343 is greater than 5 mm, on the one hand, the cost is high, and on the other hand, the spacing between adjacent second limit strips 343 will be reduced, the range of code scanning will be reduced, and the accuracy of code scanning will be reduced.

[0109] In a specific example, one end of the second limit bar 343 away from the limit fixing seat 341 is bent to form a second bent portion, and the end extends outward. The multi-station rotary barcode scanning device 30 of the present invention is configured to bend one end of the second limit bar 343 away from the limit fixing seat 341 and the end extends outward, so that the end of each second limit bar 343 extends outward, the opening becomes larger, and it is convenient for the first specification sample tube 91 or the second specification sample tube 92 to be placed in the limit space.

[0110] In a specific example, one end of the second limiting strip 343 away from the limiting fixing seat 341 is bent toward the limiting space to form a second bending portion.

[0111] The setting of the second bending portion can play a role in clamping the first-specification sample tube 91 or the second-specification sample tube 92. Since the second bending portion tends to be within the limiting space, that is, the spacing formed by the multiple second bending portions is smaller than the radial dimension of the limiting space, the first-specification sample tube 91 or the second-specification sample tube 92 can be clamped. Even if the outer diameter of the first-specification sample tube 91 or the second-specification sample tube 92 is smaller than the radial dimension of the limiting space, the first-specification sample tube 91 or the second-specification sample tube 92 can be limited and fixed by the clamping effect of the multiple second bending portions.

[0112] In a specific example, see Fig.10 As shown, the sample tube limiting mechanism 340 further includes a fixed base 344. A card slot is provided on the fixed base 344, and the limiting fixing seat 341 is annular. The limiting fixing seat 341 is provided on the fixed base 344, and the limiting space corresponds to the card slot.

[0113] In a specific example, see Fig.10As shown, the sample tube limiting mechanism 340 also includes a shock absorbing member 345. The shock absorbing member 345 is arranged in the card slot. The shock absorbing member 345 can be a rubber pad. The multi-station rotary barcode scanning device 30 of the present invention is provided with a shock absorbing member 345, which is arranged in the card slot and can provide buffering and shock absorption when the first specification sample tube 91 or the second specification sample tube 92 is placed, so as to avoid damage to the first specification sample tube 91 or the second specification sample tube 92.

[0114] The sample tube limiting mechanism 340 is provided to reduce the risk of mis-scanning, save time, reduce labor costs, and can be applied to test tubes with different outer diameters for barcode recognition.

[0115] The multi-station rotary barcode scanning device 30 of the present invention does not need to manually adjust the position of the sample tube 90 when scanning the code, greatly improves the efficiency of barcode scanning, has low cost, can improve the automation degree of scanning, reduces manual participation, reduces the risk of mis-scanning, consumes less time, reduces labor costs, avoids long-term manual contact with the sample tube 90, reduces the risk of sample contamination, and indirectly improves the accuracy of the analysis results. The multi-station rotary barcode scanning device 30 of the present invention, when in use, places sample tubes 90 of different lengths on rotating seats of different heights in sequence, rotates the rotating seat a predetermined number of times, such as half a circle or 1 / 3 circle each time, and rotates 2 or 3 times to complete the scanning of a sample tube on a rotating seat. After scanning, the sample tube 90 is placed in a predetermined position. The work that needs to be participated in manually is to place the sample tube 90 on the corresponding rotating seat, or the placement of the sample tube 90 can also be completed by other multi-directional motion components 222. Since there is a gap between the code scanning mechanism 320 and the rotating seat, and between adjacent rotating seats, the code scanning range of the code scanning mechanism 320 is increased, and the interference between adjacent rotating seats is small. Furthermore, different rotating seats are used to place sample tubes of different lengths. For example, the height difference between adjacent rotating seats is equal to the height difference between adjacent sample tubes. Therefore, the previous rotating seat and the sample tube 90 thereon will not affect the scanning work of the next rotating seat and the sample tube 90 thereon, that is, the height of the front sample tube 90 is lower than the height of the next sample tube 90, and no code scanning obstruction will be caused.

[0116] See also Fig.11 As shown, the sample rack conveying device 40 is used to convey the sample rack for the sample clamping mechanism 22 of the sample tube injection identification device 20 to clamp. The sample rack conveying device 40 includes a sample rack conveying mechanism 41, a sample rack pushing mechanism 42, a lifting and limiting mechanism 43, and a barcode scanner 44. The sample rack conveying mechanism 41, the sample rack pushing mechanism 42, the lifting and limiting mechanism 43, and the barcode scanner 44 are electrically connected to the control device.

[0117] See also Fig.12As shown, the sample rack conveying mechanism 41 is provided with a conveying station 411 and a conveying component 412 capable of conveying the sample rack to the conveying station 411, the lifting and limiting mechanism 43 is provided with a working station 439 and a limiting component capable of limiting the sample rack on the working station 439, the working station 439 is connected to the conveying station 411, the sample rack pushing mechanism 42 is used to push the sample rack at the conveying station 411 to the working station 439, and the barcode scanner 44 is used to obtain the sample rack information at the working station 439.

[0118] In one embodiment, the conveying assembly 412 includes a conveying base 4121, a conveying connecting belt 4122, and a conveying driving component 4123. The conveying connecting belt 4122 is sleeved on the conveying base 4121 and the upper surface of the conveying connecting belt 4122 forms a conveying station 411. The conveying driving component 4123 is arranged on the conveying base 4121 to drive the conveying connecting belt 4122 to move. The conveying driving component 4123 is electrically connected to the control device.

[0119] In one embodiment, the transmission assembly 412 further includes a transmission shaft 4124 and a transmission driving wheel 4125. A transmission channel is provided on the transmission base 4121, and at least two horizontal transmission shafts 4124 are rotatably provided in the transmission channel. The transmission driving wheel 4125 is rotatably provided on the transmission base 4121. The transmission shaft 4124 and the transmission driving wheel 4125 are connected by a transmission connecting belt 4122, and the transmission driving component 4123 is connected to the transmission driving wheel 4125.

[0120] In one embodiment, the conveying assembly 412 further includes a guide plate 4126. The guide plates are respectively provided on both sides of the conveying channel, and the guide plates are close to the head end of the conveying connecting belt 4122 in the forward direction. The sample rack conveying device 40 of the present invention is provided with the guide plate 4126 to assist the sample tube 90 to enter the conveying station 411.

[0121] In one embodiment, the conveying assembly 412 further includes a first conveying position sensor 4127 and a second conveying position sensor 4128 disposed on the conveying base 4121 and close to the conveying station 411. The first conveying position sensor 4127 is located at the head end of the conveying connecting belt 4122 in the forward direction, and the second conveying position sensor 4128 is located at the end of the conveying connecting belt 4122 in the forward direction. The sample rack conveying device 40 of the present invention is used to detect whether the sample tube 90 reaches the conveying station 411 by providing the first conveying position sensor 4127 and the second conveying position sensor 4128. The first conveying position sensor 4127 and the second conveying position sensor 4128 are electrically connected to the control device.

[0122] In one embodiment, the conveying assembly 412 further includes a blocking plate 4129. The blocking plate 4129 is disposed on the conveying base 4121 and is located at the end of the conveying connecting belt 4122 in the forward direction to prevent the sample rack from leaving the conveying station 411. The sample rack conveying device 40 of the present invention can prevent the sample rack from leaving the conveying station 411 by providing the blocking plate 4129, thereby preventing the conveying assembly 412 from conveying the sample tube 90 beyond a predetermined position.

[0123] In one embodiment, the conveying assembly 412 further includes a plurality of guide rollers 41210. The guide rollers 41210 are disposed on the conveying base 4121 and are located at least on one side of the conveying station 411 along the advancing direction of the conveying connecting belt 4122.

[0124] In one embodiment, the sample rack pushing mechanism 42 includes a pushing base 421, a pushing driving component 422, and a pushing plate 423. The pushing plate 423 is movably connected to the pushing base 421, and the pushing driving component 422 is connected to the pushing plate 423 to drive the pushing plate 423 to move, and the movement direction of the pushing plate 423 is perpendicular to the conveying direction of the conveying assembly 412 in the horizontal direction. The pushing driving component 422 is electrically connected to the control device.

[0125] In one embodiment, see Fig.14 As shown, the sample rack pushing mechanism 42 further includes a pushing guide rail 424. The pushing guide rail 424 is disposed on the pushing base 421, and the pushing plate 423 is slidably connected to the pushing guide rail 424.

[0126] In one embodiment, the sample rack pushing mechanism 42 further includes a pushing conveyor belt 425, a pushing driving wheel, and a pushing idle wheel 426. The pushing driving wheel and the pushing idle wheel 426 are rotatably connected to the pushing base 421, respectively, the pushing conveyor belt 425 is connected to the pushing driving wheel and the pushing idle wheel 426, the pushing plate 423 is connected to the pushing conveyor belt 425, and the pushing driving component 422 can drive the pushing driving wheel to rotate forward or reverse.

[0127] In one embodiment, the sample rack pushing mechanism 42 further includes a pushing reducer 427. The pushing reducer 427 cooperates with the pushing driving wheel to achieve deceleration of the pushing driving wheel. The sample rack conveying device 40 of the present invention can achieve deceleration control of the pushing driving wheel after rapid rotation by setting the pushing reducer 427.

[0128] In one embodiment, see Fig.13As shown, the lifting limit mechanism 43 includes a lifting limit base 431, a lifting limit substrate 432, a lifting limit rod 433 and a limit driving component 434. The lifting limit substrate 432 is movably connected to the lifting limit base 431 and can move in the vertical direction along the lifting limit base 431. The lifting limit substrate 432 is provided with a working station 439, and the lifting limit substrate 432 is connected with the lifting limit rod 433 distributed around the working station 439. The limit driving component 434 is connected to the lifting limit substrate 432. The limit driving component 434 is electrically connected to the control device.

[0129] In one embodiment, the lifting limit mechanism 43 further includes a lifting limit guide rail 435, a lifting limit slider 436, a lifting limit roller 437 and a cam 438. The lifting limit guide rail 435 is arranged on the lifting limit base 431 and extends along the vertical direction, the lifting limit slider 436 is fixedly connected to the lifting limit base 432 and slidably connected to the lifting limit guide rail 435, the lifting limit slider 436 has a long strip-shaped clearance channel 4361, the lifting limit roller 437 is rollingly connected in the clearance channel 4361, and the limiting driving component is rotatably connected to the lifting limit roller 437 through the cam 438. The sample rack conveying device 40 of the present invention realizes the vertical movement of the lifting and limiting substrate 432 by setting the lifting and limiting guide rail 435, the lifting and limiting slider 436, the lifting and limiting roller 437 and the cam 438, thereby reducing the volume of the lifting and limiting mechanism 43 and reducing the occupied space of the entire sample rack conveying device 40.

[0130] In one embodiment, a sample rack recovery mechanism 45 is further included. The sample rack recovery mechanism 45 includes a recovery tray 451 and a tray guide 452. A buffer station 453 is provided on the recovery tray 451, and the working station 439 is docked with the buffer station 453. The tray guide 452 is provided on the recovery tray 451 and extends to the buffer station 453 and the working station 439. The sample rack conveying device 40 of the present invention can realize the recovery of the sample rack after sampling by providing the sample rack recovery mechanism 45, saving the time cost of manual recovery, and having a high degree of recovery automation. During recycling, after the sample rack at the work station 439 completes sampling or clamping of the sample tube, it is pushed onto the tray guide rail 452 by the sample rack pushing mechanism 42. When the next sample rack is pushed onto the tray guide rail 452, it pushes the previous sample rack forward along the tray guide rail 452 by a distance of the thickness of the sample rack, and so on, until the sample racks on the tray guide rail 452 are full. It can be seen that the sample rack recycling mechanism 45 can directly rely on the sample rack pushing mechanism, and does not require special power support.

[0131] The sample rack conveying device 40 of the present invention has a simple structure, small structural space, low cost and wide adaptability. When the sample rack conveying device 40 of the present invention is used, after the sample rack is placed on the conveying component 412, no manual intervention is required. After the conveying component 412 conveys the sample rack to the conveying station 411, the sample rack pushing mechanism 42 pushes the sample rack at the conveying station 411 to the working station 439, and the lifting and limiting mechanism 43 limits and fixes the sample rack at the working station 439. The sample rack completes the sample suction or grabbing work at the working station 439, and the barcode scanner 44 obtains the sample rack information at the working station 439. After the above process is completed, the lifting and limiting mechanism 43 releases the sample rack, and the sample rack continues to be pushed to the defined position by the sample rack pushing mechanism 42 for recycling.

[0132] The in vitro diagnostic device 1 of the present invention further comprises a common sample injection device 61. The common sample injection device 61 is used to place the sample tube 90 to be tested. The sample rack conveying device 40 is used to convey the sample rack at the common sample injection device 61.

[0133] The in vitro diagnostic device 1 of the present invention further includes an assembly line device 10. The assembly line device 10 is docked with the common sample injection device 61 to obtain the sample rack at the common sample injection device 61. The assembly line device 10 is docked with the conveying assembly 412 of the sample rack conveying device 40. After the sample rack on the assembly line device 10 enters the conveying assembly 412, it enters the working station 439 with the assistance of the sample rack conveying device 40 to be clamped by the sample clamping mechanism 22 of the sample tube injection identification device 20.

[0134] The in vitro diagnostic device 1 of the present invention further comprises a buffer device 70. The buffer device 70 is disposed between the multi-station rotary barcode scanning device 30 and the sample rack conveying device 40, and the buffer device 70 is used to store the sample tubes 90 after the barcode is scanned.

[0135] The in vitro diagnostic device 1 of the present invention also includes a mobile sample loading device 80, which is arranged between the buffer device 70 and the analyzer 50 and can move between the buffer device 70 and the analyzer 50. The mobile sample loading device 80 can obtain the sample rack in the buffer device 70 and send the sample rack to the analyzer 50.

[0136] The in vitro diagnostic device 1 of the present invention further comprises an emergency sample injection device 62. The emergency sample injection device 62 is connected to the buffer device 70. The emergency sample injection device 62 can directly enter the buffer device 70.

[0137] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0138] An in vitro diagnostic device 1 includes a sample tube injection identification device 20.

[0139] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0140] An in vitro diagnostic device 1 includes a sample holder mechanism 21 .

[0141] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0142] An in vitro diagnostic device 1 includes a sample clamping mechanism 22 .

[0143] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0144] An in vitro diagnostic device 1 includes a material clamping component 221.

[0145] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0146] An in vitro diagnostic device 1 includes a multi-directional motion component 222.

[0147] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0148] An in vitro diagnostic device 1 includes a multi-station rotary barcode scanning device 30.

[0149] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0150] An in vitro diagnostic device 1 includes a sample tube limiting mechanism 340 .

[0151] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0152] An in vitro diagnostic device 1 includes a sample rack conveying device 40 .

[0153] An embodiment of the present invention further provides an in vitro diagnostic device 1 .

[0154] An embodiment of the present invention further provides a method for using the multi-station rotary barcode scanning device 30 .

[0155] A method for using a multi-station rotary barcode scanning device 30 includes the following steps.

[0156] This method implements the scanning work of two specifications of sample tubes 90, the first one is a first specification sample tube 91, and the other one is a second specification sample tube 92.

[0157] When the first specification sample tube 91 is obtained, it is placed on the first rotating seat 311 accordingly. The first rotating seat 311 rotates 1 / 3 of a circle. The scanning of the first specification sample tube 91 can be completed after rotating 3 times. After the scanning is completed, the first specification sample tube 91 is manually placed in the predetermined position.

[0158] When manually taking the second specification sample tube 92, place it on the second rotating seat 312, and the second rotating seat 312 rotates 1 / 3 of a circle. The scanning of the second specification sample tube 92 can be completed after rotating 3 times. After the scanning is completed, the second specification sample tube 92 is manually placed in a predetermined position.

[0159] When using the multi-station rotary barcode scanning device 30 of the present invention, it is necessary to simultaneously have position requirements for the barcodes of the sample tubes 90. For example, the first sample tube 91 of the first specification is 75 mm in length, and the other sample tube 92 of the second specification is 100 mm in length. Since the second rotating seat 312 is 25mm higher than the first rotating seat 311 in front, the height of the sample tube limiting mechanism 340 on the first rotating seat 311 can be set to 45mm, and the height of the sample tube limiting mechanism 340 on the second rotating seat 312 can be set to 30mm; then the barcode length of the second-specification sample tube 92 of 100mm is 55mm at maximum (including 5mm of the lower static area and 45mm of the barcode effective length), and the barcode pasting requires that a minimum of 15mm be reserved at the bottom of the second-specification sample tube 92, so that the sample tube limiting mechanism 340 on the first rotating seat 311 will not block the scanning of the second-specification sample tube 92, that is, the ultimate purpose is to require that the total height of the rotating seat close to the code scanning mechanism 320 and the sample tube limiting mechanism 340 thereon cannot block the barcode of the sample tube 90 on the rotating seat.

[0160] An embodiment of the present invention also provides a method for automatically identifying the model of a sample tube 90 .

[0161] A method for automatically identifying the model of a sample tube 90 includes the following method:

[0162] Grip the sample tube 90.

[0163] The encoder reading on the sample tube 90 is obtained and the type of the sample tube 90 is determined according to the preset information. When the encoder reading is within the first range, it indicates that the sample tube 90 is an uncapped sample tube of the first specification; when the encoder reading is within the second range, it indicates that the sample tube 90 is a capped sample tube of the first specification; when the encoder reading is within the third range, it indicates that the sample tube 90 is an uncapped sample tube of the second specification; when the encoder reading is within the fourth range, it indicates that the sample tube 90 is a capped sample tube of the second specification; and the same applies to sample tubes 90 of other specifications.

[0164] When it is determined to be an uncapped sample tube (such as a first specification uncapped sample tube and a second specification uncapped sample tube), the sample tube 90 is moved to enter the test; when it is determined to be a capped sample tube (such as a first specification capped sample tube and a second specification capped sample tube), the sample tube 90 is moved to the decapping mechanism for decapping and then enters the test. The automatic identification method of the sample tube 90 model of the present invention is simple to operate, requires less manual participation, and has a high degree of automation.

[0165] An embodiment of the present invention further provides an in vitro diagnostic method.

[0166] An in vitro diagnostic method, using the in vitro diagnostic device 11, comprises the following steps:

[0167] Obtain the sample rack at the common sample injection device 61 and enter the assembly line device 10. The sample rack from the assembly line device 10 enters the conveying component 412 of the sample rack conveying device 40. The conveying component 412 conveys the sample rack to the conveying station 411. After the first conveying position sensor 4127 and the second conveying position sensor 4128 detect that the sample tube reaches the conveying station 411, the sample rack pushing mechanism 42 pushes the sample rack to the working station 439.

[0168] The sample clamping mechanism 22 of the sample tube injection identification device 20 clamps the sample tube 90 on the sample rack at the work station 439, obtains the encoder reading on the sample tube 90 through the identification mechanism 230 arranged on the sample clamping mechanism 22, and makes a type judgment of the sample tube 90 according to the preset information.

[0169] The clamping assembly 221 and the multi-directional motion assembly 222 of the clamping mechanism 22 cooperate to deliver the sample tube 90 that meets the test requirements to the multi-station rotary barcode scanning device 30. After the multi-station rotary barcode scanning device 30 obtains the barcode of the sample tube 90, the clamping assembly 221 and the multi-directional motion assembly 222 of the clamping mechanism 22 cooperate to deliver the sample tube 90 from the multi-station rotary barcode scanning device 30 to the sample rack at the buffer device 70 for storage.

[0170] The mobile sample loading device 80 obtains the sample tube 90 on the sample rack at the buffer device 70 , and delivers the sample tube 9 to the analyzer 50 .

[0171] In addition, when there is an emergency sample, the emergency sample can be directly connected to the buffer device 70, and the emergency sample injection device 62 can directly enter the sample rack in the buffer device 70 to wait for analysis.

[0172] Example 1

[0173] This embodiment provides a method for automatically identifying the model of a sample tube. Fig.15 As shown, the automatic identification method of the sample tube model is implemented using the above-mentioned sample tube injection identification device 20. In this embodiment, two specifications of sample tubes are provided, one is a first specification sample tube 91, and the other is a second specification sample tube 92.

[0174] A method for automatically identifying a sample tube model includes the following method:

[0175] The control device controls the sample clamping mechanism 22 to move to the sample holder mechanism 21 to clamp the sample tube.

[0176] The control device controls the identification mechanism 230 to obtain the encoder reading on the sample tube and make a judgment on the type of the sample tube according to the preset information. When the encoder reading is between the first range, it indicates that the sample tube is a sample tube of the first specification without a cap; when the encoder reading is between the second range, it indicates that the sample tube is a sample tube with a cap of the first specification; when the encoder reading is between the third range, it indicates that the sample tube is a sample tube of the second specification without a cap; when the encoder reading is between the fourth range, it indicates that the sample tube is a sample tube with a cap of the second specification; and the same applies to sample tubes of other specifications.

[0177] When it is judged to be an uncapped sample tube of the first specification or an uncapped sample tube of the second specification, the control device controls the sample clamping mechanism 22 to move the sample tube into the test; when it is judged to be a capped sample tube of the first specification or a capped sample tube of the second specification, the control device controls the sample clamping mechanism 22 to move the sample tube to the decapping mechanism for decapping and then enters the test.

[0178] Example 2

[0179] This embodiment provides a method for automatically identifying the model of a sample tube. Fig.15 As shown, the automatic identification method of the sample tube model is implemented using the above-mentioned sample tube injection identification device 20. In this embodiment, two specifications of sample tubes are provided, one is a 13 mm sample tube, and the other is a 16 mm sample tube.

[0180] A method for automatically identifying a sample tube model includes the following method:

[0181] See also Figure 2 As shown, the control device controls the sample clamping mechanism 22 to move to the sample holder mechanism 21 to clamp the sample tube.

[0182] The control device controls the identification machine to obtain the encoder reading on the sample tube and make a judgment on the type of the sample tube according to the preset information. When the encoder reading is between 400-450, it indicates that the sample tube is a 13mm uncapped sample tube; when the encoder reading is between 450-600, it indicates that the sample tube is a 13mm capped sample tube; when the encoder reading is between 600-650, it indicates that the sample tube is a 16mm uncapped sample tube; when the encoder reading is above 650, it indicates that the sample tube is a 16mm capped sample tube.

[0183] When it is judged to be a 13mm uncapped sample tube and a 16mm uncapped sample tube, the control device controls the sample clamping mechanism 22 to move the sample tube into the test; when it is judged to be a 13mm capped sample tube and a 16mm capped sample tube, the control device controls the sample clamping mechanism 22 to move the sample tube to the decapping mechanism for decapping and then enters the test.

[0184] The automatic identification method of sample tube models in this embodiment is easy to operate, requires little manual involvement, and has a high degree of automation.

[0185] Example 3

[0186] This embodiment provides a method for automatically identifying the model of a sample tube. The method for automatically identifying the model of a sample tube is implemented using the above-mentioned sample tube injection identification device 20. This embodiment provides three specifications of sample tubes, one is a 13mm sample tube, another is a 16mm sample tube, and the third is an 18mm sample tube.

[0187] A method for automatically identifying a sample tube model includes the following method:

[0188] See also Figure 2 As shown, the control device controls the sample clamping mechanism 22 to move to the sample holder mechanism 21 to clamp the sample tube.

[0189] The control device controls the identification mechanism 230 to obtain the encoder reading on the sample tube and make a judgment on the type of the sample tube according to the preset information. When the encoder reading is between 400-450, it indicates that the sample tube is a 13mm sample tube without a cap; when the encoder reading is between 450-600, it indicates that the sample tube is a 13mm sample tube with a cap; when the encoder reading is between 600-650, it indicates that the sample tube is a 16mm sample tube without a cap; when the encoder reading is between 650-700, it indicates that the sample tube is a 16mm sample tube with a cap. When the encoder reading is between 700-750, it indicates that the sample tube is an 18mm sample tube without a cap; when the encoder reading is above 750, it indicates that the sample tube is an 18mm sample tube with a cap.

[0190] When it is judged to be a 13mm uncapped sample tube, a 16mm uncapped sample tube, or an 18mm uncapped sample tube, the control device controls the sample clamping mechanism 22 to move the sample tube into the test; when it is judged to be a 13mm capped sample tube, a 16mm capped sample tube, or an 18mm capped sample tube, the control device controls the sample clamping mechanism 22 to move the sample tube to the decapping mechanism for decapping and then enters the test.

[0191] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0192] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A sample rack conveying device, characterized in that: The sample rack conveying mechanism comprises a sample rack pushing mechanism, a lifting and limiting mechanism and a barcode scanner, wherein the sample rack conveying mechanism is provided with a conveying station and a conveying component capable of conveying the sample rack to the conveying station, the lifting and limiting mechanism is provided with a working station and a limiting component capable of limiting the sample rack on the working station, the lifting and limiting mechanism comprises a lifting and limiting base, a lifting and limiting substrate, a lifting and limiting rod, a limiting driving component, a lifting and limiting guide rail, a lifting and limiting slider, a lifting and limiting roller and a cam, the lifting and limiting substrate is movably connected to the lifting and limiting base and can move in a vertical direction along the lifting and limiting base, the working station is provided on the lifting and limiting substrate, the lifting and limiting substrate is connected with the lifting and limiting rods distributed around the working station, and the limiting driving component is connected to the lifting and limiting roller The lifting and limiting substrate is used to drive the lifting and limiting substrate to move, the lifting and limiting guide rail is arranged on the lifting and limiting base and extends along the vertical direction, the lifting and limiting slider is fixedly connected to the lifting and limiting substrate and slidably connected to the lifting and limiting guide rail, the lifting and limiting slider has a long strip of giving way channel, the lifting and limiting roller is rollingly connected in the giving way channel, the limiting driving component is rotatably connected to the lifting and limiting roller through the cam, the working station is connected to the conveying station, the sample rack pushing mechanism is used to push the sample rack at the conveying station to the working station, the barcode scanner is used to obtain the sample rack information at the working station, and the sample rack conveying mechanism, the sample rack pushing mechanism, the lifting and limiting mechanism and the barcode scanner are electrically connected to the control device.

2. The sample rack conveying device according to claim 1, characterized in that: The conveying assembly includes a conveying base, a conveying connecting belt and a conveying driving component. The conveying connecting belt is sleeved on the conveying base and the upper surface of the conveying connecting belt forms the conveying station. The conveying driving component is arranged on the conveying base to drive the conveying connecting belt to move.

3. The sample rack conveying device according to claim 2, characterized in that: The transmission component also includes a transmission shaft and a transmission driving wheel. A transmission channel is arranged on the transmission base. At least two horizontal transmission shafts are rotatably arranged in the transmission channel. The transmission driving wheel is rotatably arranged on the transmission base. The transmission shaft and the transmission driving wheel are connected by the transmission connecting belt. The transmission driving component is connected to the transmission driving wheel.

4. The sample rack conveying device according to claim 2, characterized in that: The conveying assembly also includes a guide plate, which is respectively arranged on both sides of the conveying channel, and the guide plate is close to the head end of the conveying connecting belt in the forward direction.

5. The sample rack conveying device according to claim 2, characterized in that: The conveying component also includes a first conveying position sensor and a second conveying position sensor which are arranged on the conveying base and close to the conveying station. The first conveying position sensor is located at the head end of the conveying connecting belt in the forward direction, and the second conveying position sensor is located at the end of the conveying connecting belt in the forward direction.

6. The sample rack conveying device according to claim 3, characterized in that: The conveying assembly further comprises a blocking plate, which is arranged on the conveying base and located at the end of the conveying connecting belt in the advancing direction so as to prevent the sample rack from leaving the conveying station.

7. The sample rack conveying device according to claim 3, characterized in that: The conveying assembly also includes a plurality of guide rollers, which are arranged on the conveying base and located at least on one side of the conveying station along the advancing direction of the conveying connecting belt.

8. The sample rack conveying device according to any one of claims 1 to 7, characterized in that: The sample rack pushing mechanism includes a pushing base, a pushing driving component and a pushing plate, wherein the pushing plate is movably connected to the pushing base, the pushing driving component is connected to the pushing plate to drive the pushing plate to move, and the movement direction of the pushing plate is perpendicular to the conveying direction of the conveying component in the horizontal direction.

9. The sample rack conveying device according to claim 8, characterized in that: The sample rack pushing mechanism further comprises a pushing guide rail, the pushing guide rail is arranged on the pushing base, and the pushing plate is slidably connected to the pushing guide rail.

10. The sample rack conveying device according to claim 8, characterized in that: The sample rack pushing mechanism also includes a pushing conveyor belt, a pushing driving wheel and a pushing idle wheel. The pushing driving wheel and the pushing idle wheel are respectively rotatably connected to the pushing base. The pushing conveyor belt is connected to the pushing driving wheel and the pushing idle wheel. The pushing plate is connected to the pushing conveyor belt. The pushing driving component can drive the pushing driving wheel to rotate forward or reverse.

11. The sample rack conveying device according to claim 10, characterized in that: The sample rack pushing mechanism further includes a pushing reducer, and the pushing reducer cooperates with the pushing driving wheel to achieve deceleration of the pushing driving wheel.

12. The sample rack conveying device according to any one of claims 1 to 7, characterized in that: It also includes a sample rack recovery mechanism, which includes a recovery tray and a tray guide rail. A buffer station is arranged on the recovery tray, the working station is docked with the buffer station, and the tray guide rail is arranged on the recovery tray and extends to the buffer station and the working station.

13. An in vitro diagnostic device, characterized in that: A sample rack conveying device comprising any one of claims 1-12.

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