WO2013143406A1 - 用于血细胞分析仪的进样取样装置 - Google Patents

用于血细胞分析仪的进样取样装置 Download PDF

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Publication number
WO2013143406A1
WO2013143406A1 PCT/CN2013/072854 CN2013072854W WO2013143406A1 WO 2013143406 A1 WO2013143406 A1 WO 2013143406A1 CN 2013072854 W CN2013072854 W CN 2013072854W WO 2013143406 A1 WO2013143406 A1 WO 2013143406A1
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WO
WIPO (PCT)
Prior art keywords
test tube
blood cell
tube rack
cell analyzer
sampling device
Prior art date
Application number
PCT/CN2013/072854
Other languages
English (en)
French (fr)
Inventor
白新梅
罗开勇
蒋正国
Original Assignee
深圳市开立科技有限公司
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Application filed by 深圳市开立科技有限公司 filed Critical 深圳市开立科技有限公司
Publication of WO2013143406A1 publication Critical patent/WO2013143406A1/zh

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04Details of the conveyor system
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00465Separating and mixing arrangements
    • G01N2035/00524Mixing by agitating sample carrier
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04Details of the conveyor system
    • G01N2035/0401Sample carriers, cuvettes or reaction vessels
    • G01N2035/0412Block or rack elements with a single row of samples
    • G01N2035/0415Block or rack elements with a single row of samples moving in two dimensions in a horizontal plane

Definitions

  • the present invention relates to medical and health appliances, and more particularly to an injection sampling device for a blood cell analyzer.
  • the blood cell analyzer is one of the most widely used instruments for clinical laboratory testing. With the rapid development of computer technology in recent years, the technology of blood cell analysis has also shifted from three-group to five-group, from two-dimensional space to three-dimensional space, and we It is also noted that many of the five-class techniques of modern blood cell analyzers use the same techniques as today's very advanced flow cytometers, such as scattered light detection technology, sheath flow technology, laser technology, and the like.
  • Cipher No. ZL 01123219.6 discloses a device for processing a sample of blood products, comprising a conveying device for moving a box one by one on a predetermined path; and a shaking device having at least one capturing device capable of Start by the drive device, draw at least one selected test tube from the box that does not move in the path, draw at least one selected test tube from the non-moving box in the path, keep the test tube away from the box, shake the test tube and test the test tube Returning to the box, and a sampling device that is capable of withdrawing a given amount of sample from a pre-shakeed test tube that has been placed back into the box.
  • the above-mentioned shaking device clamps the test tube containing the blood sample on the grasping device that is grasped thereon, and mixes the sample uniformly.
  • the picking device picks up at least two selected test tubes from the box fixed in the path of the transfer device, and then shakes the test tubes twice together.
  • the shaking device shakes the test tube, the picking device is required to separately pick up the test tube.
  • the picking device of the patent can capture two selected test tubes at a time, when it is necessary to mix the blood samples in ten test tubes. At this time, the picking device grabs two test tubes at a time, and the transportation efficiency is low.
  • an object of the present invention to provide an injection sampling device for a blood cell analyzer to improve the transportation efficiency of a blood cell analyzer.
  • the present invention is directed to an injection sampling device for a blood cell analyzer, comprising a loading device for storing and loading a test tube rack of a test tube containing sample blood; a drag device, a test tube for storing the loading device It is sent to the mixing hook device; the mixing hook device is used to uniformly mix the blood in the test tube; the puncture sampling device is used for analyzing the blood cell components; the unloading device is used for unloading the test tube rack and storing the test tube rack.
  • the loading device and the unloading device have the same structure, and the loading device includes a loading tray that can accommodate the test tube rack and a push sample block slidably disposed on the loading tray, and the push sample block is disposed on the loading material.
  • the loading device includes a loading tray that can accommodate the test tube rack and a push sample block slidably disposed on the loading tray, and the push sample block is disposed on the loading material.
  • One end of the disc and the tube rack can be pushed to move away from the other end of the tray, the tube rack holding a plurality of test tubes.
  • the two sides of the carrier disc are provided with a guiding rod
  • the pushing block passes through the guiding rod and can slide longitudinally along the guiding rod
  • a clamping portion is disposed on an edge of the loading tray near the loading surface of the loading tray and away from the loading surface of the loading tray, and the pushing block slides under the joint action of the locking portion and the guiding rod
  • each guiding rod is disposed in parallel, and the pushing sample block can smoothly push the test tube rack to move in a predetermined direction under the action of the guiding rod.
  • each of the guide bars is disposed in parallel, and the pusher block can be smoothly placed on the guide bar Under the action of the test tube frame to move in a predetermined direction.
  • the gripper that grips the lateral movement of the test tube rack and the longitudinal movement drive mechanism that drives the gripper are included.
  • the drag device further comprises a pair of lateral guides for guiding the drag device.
  • the driving mechanism is a rack and pinion transmission mechanism.
  • the driving mechanism includes a fixing seat that can be fitted on the lateral rail, the motor is mounted on the fixing seat by a fixing cover, a gear is fixed on the output shaft of the motor; a guiding block fixed on the fixing seat; slidable a slider disposed on the guide block, the slider is provided with a gripper and a rack-fitted rack; and a slider that holds the slider on the guide block.
  • the gripping hand is provided with a cylindrical hole, and the gripper is fixed on the slider by a pin mounted on the cylindrical hole.
  • the lateral movement of the gripping test tube rack is achieved by a belt drive mechanism.
  • the mixing hook device includes a rotatable 360.
  • the roller is provided with a belt that is coupled to the first motor by a belt drive.
  • a brake device is further included.
  • the brake device includes a second motor, a fixing structure, a screw, a wedge, and a stopper, wherein the second motor is fixed to the fixing Structurally, one end of the screw is connected to the second motor through a circular hole in the fixing structure, and the wedge is sleeved on the screw, and the inner surface thereof cooperates with the thread on the screw, the fixing
  • the lower portion of the structure has a recess for receiving the wedge, the stop matching the recess.
  • the brake device is fixed to a connecting plate.
  • the photoelectric switch for controlling the operation of the second motor is further provided, and the wedge is provided with a spring piece for triggering the photoelectric switch.
  • a stop device provided on the drum and catching the test tube rack is further included.
  • the stopper device includes a spring, a fixing structure, a connecting structure and a rolling bearing, wherein the upper end of the connecting structure is provided with a recess having a diameter matching the spring
  • the upper end of the connecting structure is provided with a recess having a diameter matching the spring
  • the spring one of the springs is placed in the recessed hole, and a section of the spring is exposed outside the recessed hole; the lower end of the connecting structure extends forward to form a shaft that cooperates with the rolling shaft 7, and the rolling bearing is sleeved on the spring
  • a nut is disposed at a front end of the shaft to prevent the rolling shaft from sliding off the shaft;
  • the fixing structure is fixed to the side wall of the drum.
  • the test tube rack package The bottom plate, the side wall and the annular sleeve, wherein the bottom plate is provided with a hole-like structure that cooperates with the gripper; the side wall is vertically disposed on the bottom plate to form a main support of the whole test tube rack.
  • the annular sleeve is disposed on the side wall, and the annular sleeve or the annular sleeve and the side wall form a space for holding the test tube.
  • annular sleeves are laterally arranged on the side wall.
  • each of the ten annular sleeves is longitudinally provided with another annular sleeve.
  • the sample sampling device for a blood cell analyzer in the embodiment of the present invention comprises a loading device for storing a test tube rack of a test tube containing sample blood; and a drag device for sending the test tube stored in the sample sampling device to a mixing device for mixing the blood of the sample in the test tube; a puncture sampling device for analyzing blood cell components; an unloading device for unloading the test tube rack; wherein the loading and unloading device has the same structure ,
  • test tube in the loading device is sent to the mixing hook device under the action of the dragging device, after the mixing hook device is mixed and hooked, the test tube blood of the sample bearing sample is sent to the puncture sampling device for sampling.
  • the carried test tube enters the mixing device again and repeatedly mixes repeatedly to make the mixing more complete. Finally, after the end of the analysis, the test tube is pushed out and discharged into the unloading device, so the device realizes the blood. Fully automated injection sampling.
  • FIG. 1 is a schematic perspective view of a blood cell analyzer according to an embodiment of the present invention.
  • FIG. 2 is a schematic top plan view of a blood cell analyzer according to an embodiment of the present invention.
  • FIG. 3 is a schematic top plan view of a test tube rack according to an embodiment of the present invention.
  • FIG. 4 is a schematic bottom view of a test tube rack according to an embodiment of the present invention.
  • FIG. 5 and FIG. 6 are schematic diagrams showing a multi-angle structure of a towing device according to an embodiment of the present invention.
  • FIG. 7 is a schematic view showing an exploded structure of a drag device according to an embodiment of the present invention.
  • FIG. 8 is a schematic side view showing a transmission device according to an embodiment of the present invention.
  • FIG. 9 is a schematic view showing an exploded structure of a transmission device according to an embodiment of the present invention.
  • FIG. 10 is a schematic perspective structural view of a mixing device according to an embodiment of the present invention
  • FIG. 11 is a schematic exploded view of a mixing device according to an embodiment of the present invention
  • Figure 12 is a perspective view showing the structure of a brake device according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an explosion structure of a brake device according to an embodiment of the present invention.
  • Figure 14 is a schematic view showing the explosion structure of the stopping device according to the embodiment of the present invention.
  • FIG. 15 is a cross-sectional structural view of a stopper device according to an embodiment of the present invention.
  • Figure 16 is a schematic view showing the mounting structure of the stopper device according to the embodiment of the present invention.
  • the sample sampling device includes a loading device for storing and loading a test tube rack of a test tube containing sample blood; and a drag device 4 for sending the test tube stored in the sample sampling device To the mixing device; the mixing device 5 for uniformly mixing the blood of the sample in the test tube; the puncture sampling device 6 for analyzing the blood cell components; and the unloading device 7 for unloading the test tube rack for sampling the completion of the injection.
  • the specific working process of the above sampling sampling device is as follows:
  • the test tube rack 3 in the loading device is sent to the mixing hook device 5 by the dragging device 4, and after the mixing hook device 5 is mixed and hooked, the dragging device 4 will be
  • the test tube of the blood carrying the sample is sent to the puncture sampling device 6 for sampling; during the sample analysis, the carried test tube enters the mixing device 5 again and repeatedly mixes repeatedly, so that the mixing is more sufficient;
  • the rear test tube rack 3 is pushed out and discharged into the carrier tray 8 of the unloading device 7.
  • the test tube rack 3 of this embodiment can hold a plurality of test tubes 26, and the blood samples are placed in the test tubes 26 and closed with a stopper, and the distance between adjacent test tubes 26 is the same.
  • the test tube rack 3 in this embodiment includes a bottom plate 30, a side wall 31 and an annular sleeve 32.
  • the side wall 31 is vertically disposed on the bottom plate 30 to form a main support structure of the entire test tube rack 3; the annular sleeve 32 is disposed on the side wall 31, The annular sleeve 32 or the annular sleeve 32 and the side wall 31 form a space for holding the test tube 26.
  • annular sleeves 32 are arranged laterally for holding ten test tubes 26; in order to prevent the test tube 26 from shaking, Each of the annular sleeves 32 of the test tube rack 3 is longitudinally provided An annular sleeve 32 having a predetermined distance between the longitudinally disposed annular sleeves 32 provides a more reasonable force on the test tube 26 located within the annular sleeve 32.
  • the annular sleeve 32 may be fixed to the side wall 31 by a mechanical structure, for example, by screws on the side wall 31; it may also be provided as a unitary structure, specifically by injection molding to form a unitary structure.
  • the top end of the side wall 31 is provided with a groove 34 having the same pitch as the test tube 26, and a step 32 is provided in the horizontal direction.
  • a hole-like structure is arranged on the bottom plate 30 of the test tube rack 3 to facilitate the clamping of the subsequent device.
  • the hole-shaped structure is a square hole structure, and the square hole includes a sleeve and the sleeve is fixed on the bottom plate 30.
  • the reinforcing ribs, the reinforcing ribs are arranged around the casing as a center, which not only ensures the strength of the casing, but also saves the raw materials to the utmost extent.
  • the bottom plate 30 and the hole-like structure may be provided in a unitary structure, specifically by injection molding into a unitary structure.
  • the loading device in the embodiment of the present invention comprises a carrier tray 1 and a pusher block 2, wherein the carrier tray 1 can accommodate the test tube rack 3, and the test tube rack 3 is slidably disposed on the carrier tray 1; At one end of the carrier 1, the test tube rack 3 can be pushed to move away from the other end of the tray 1.
  • the guide tray 1 is provided with guide bars on both sides thereof, and the pusher block 2 passes through the guide bar and is longitudinally slidable along the guide bar.
  • the guide tray 1 is provided with a guide bar on each side, the edge of the carrier disk 1 adjacent to the loading surface of the carrier disk 1 and the edge away from the carrier surface of the carrier disk 1 are provided with a clamping portion. Sliding under the joint action of the clamping portion and the guiding rod; when the carrier tray 1 is provided with at least two guiding rods on each side, each guiding rod is arranged in parallel, and the pushing block 2 can smoothly function in the guiding rod
  • the test tube rack 3 is pushed downward to move in a predetermined direction.
  • test tube rack 3 on the carrier tray 1 is performed under the push of the pusher block 2, and when the test tube rack 3 is moved from the beginning to the end of the carrier tray 1, the test tube rack 3 enters the lateral track and is dragged The lateral movement is done by the action of the device 4.
  • the drag device 4 may be a rack and pinion drive mechanism driven by the motor 36 or a cam mechanism driven by the motor 36 to be driven by the motor 36. Under the transmission of the rack and pinion transmission mechanism or the cam mechanism, the drag portion of the drag device 4 can be linearly moved up and down, and the drag portion is specifically a gripper.
  • the gripper moves upwards, and when reaching the top limit position, the gripper penetrates into the hole-like structure at the bottom of the test tube rack 3, and the entire drag device 44 moves laterally along the lateral guide rail to drive the test tube rack 3 to move on a predetermined track; When moving down, the gripper is separated from the test tube rack 3, and the entire drag device 4 can be moved separately in a predetermined track.
  • the drag device 4 includes a gripper 39 that can move up and down and a drive mechanism that drives the gripper 39 to move up and down.
  • the driving mechanism includes a fixing base 42 that can be set on a lateral rail.
  • the fixing seat 42 is mounted with a motor 36 through a fixing cover 44.
  • a gear 37 is fixed on the output shaft of the motor 36.
  • the guiding is fixed on the fixing base 42.
  • Block 41 a slider slidably disposed on the guiding block 41, the slider is provided with a grip 39 and a rack 38 matched with the gear 37, wherein the gripper 39 is provided with a cylindrical hole 54 through the mounting A pin on the cylindrical bore 54 secures the grip on the slider; and holds the slider on the clamp 48 of the guide block 41.
  • the gear 37 is rotated by the motor 36, and the rotation of the gear 37 causes the rack 38 to move upward along the rack 38 guide block 41.
  • the non-toothed side of the rack 38 abuts against the inner side wall 31 of the guide block 41 and moves up and down along the guide block 41.
  • On the side of the rack 38 near the guiding block 41 there is a convex cylinder 52.
  • the cylinder 52 is located in the strip groove 53 in the middle of the guiding block 41, and functions as a mechanical limit.
  • the cylinder 52 can It is a solid cylindrical pin or a pulley that can rotate freely.
  • the rack 38 fixed on the slider drives the gripper 39 into the hole-like structure on the bottom plate 30 of the test tube rack 3, so that the test rack 3 dragging device 4 can be moved during the lateral movement.
  • the test tube rack 3 to move at the same time.
  • the motor 36 is reversely rotated by a certain angle, the rack 38 is moved downward to return, and the grip 39 is separated from the hole-like structure at the bottom of the test tube rack 3.
  • the fixing base 42 is provided with a through hole 43 matching with the lateral rail, wherein the wear of the fixing seat 42 is reduced, and the two ends of the through hole 43 are respectively provided with a guiding sleeve 50, and the guiding sleeve 50 is fixed by the fixing flange 49. .
  • the drag device 4 is further provided with a photoelectric sensor 45, wherein the metal piece 51 for starting the photosensor 45 is fixed on the slider, when grasping When the hand 39 moves to the preset position, the metal piece 51 comes into contact with the photosensor 45, and the photosensor 45 is activated to operate, and the photosensor 45 transmits a control signal to drive the motor 36 to operate in the reverse direction.
  • the other side of the rack 38 is provided with a metal piece 51.
  • the metal piece 51 also moves up and down during the movement of the rack 38.
  • the metal piece 51 triggers the photosensor 45 at the front end, thereby controlling the operation of the motor 36. status.
  • test tube rack 3 drag device 44 is driven by the main motor 36, the timing belt (not shown) is fastened to the clamp plate 48, and the through hole 43 is matched with the lateral guide rail (not shown), so that the test tube rack 3 is dragged and lowered. Lateral movement along the transverse rail is carried out by the motor 36.
  • a roller 40 is fixed on the rack 38, and the roller 40 is located between the lateral guide rails of the test tube rack 3.
  • the roller rolls along the inner surface of the transverse guide rail of the test tube rack 3, thereby guiding effect.
  • the entire test rack 3 drag device 4 is guided by the lateral guide rails and the rollers 40 during the movement to prevent the entire test rack 3 from being dragged left and right in the movement.
  • Dragging device 4 After transporting the test tube rack 3 to the mixing hook device 5, the mixing hook device 5 shakes the test tube rack 3, thereby shaking the test tube 26 placed on the test tube rack 3.
  • the mixing device 5 includes a rotatable 360.
  • the test tube rack 3 is transported inside the drum 11 by the drag device 4 and fixed inside the drum 11, and the hook device is fixed above the lateral rail by a support frame.
  • the motor 13 is rotated by the belt drive drive roller 9 and the roller 10, thereby enabling the entire row of test tubes 26 to be rotated 180 at the same time. Or 360. , so that the sample is thoroughly mixed.
  • the photoelectric switch 19 sends a signal to the motor 13, and the motor 13 stops rotating.
  • the mixing device 5 in this embodiment is further provided with a braking device 14, and the test tube rack 3 in the mixing hook device 5 is rotated 180.
  • a brake device 14 that brakes after 360°, the brake device 14 mechanically brakes the entire drum 11 move.
  • a photoelectric switch 19 and a brake device 14 are provided at the upper end of the drum 11.
  • the brake device 14 includes a motor 16, a fixed structure 17, a screw 18, a wedge 21 and a stop 22, wherein the motor 13 is fixed on the fixed structure 17, and the end of the screw 18 passes through the circular hole and the motor on the fixed structure 17. 13 is connected, the wedge 21 is sleeved on the screw 18, and the inner surface thereof cooperates with the thread on the screw 18, the motor 13 drives the screw 18 to rotate to drive the wedge 21 to move downward, and the lower portion of the fixing structure 17 has a recess for accommodating the wedge 21.
  • the groove 34 when the wedge 21 does not move downward, is received within the recess 34 of the fixed structure 17, and the stop 22 matches the recess 34 of the wedge 21.
  • the entire braking device 14 is fixed by fixing the periphery of the lower end of the fixing structure 17 to a connecting plate 171 fixed on the supporting frame of the mixing hook device.
  • the connecting plate 171 is hollow, and the middle hole can accommodate the movement of the wedge 21 up and down. .
  • the stopper 22 is fixed to the drum 11 of the mixing hook device 5, and the drum 22 is controlled to rotate by braking the stopper 22.
  • the mixing hook device 5 in this embodiment is further provided with a stopping device 15 which, as shown, includes a spring 27,
  • the connecting structure 24 is fixed in the mounting hole 28 of the fixing structure 25, and the upper end surface of the spring 27 thereon is placed on the lower surface of the upper end of the fixing structure 25 and generates a certain elastic tension by the pressing of the surface;
  • the fixing structure 25 Fixed on the side wall 31 of the drum 11; the lower end of the connecting structure 24 extends forward to form a shaft that cooperates with the rolling shaft 7
  • the drum 11 is fixed between the two rollers 9 and the roller 10, and the drum 11 is provided with a strip shape and
  • the side wall 31 of the test tube rack 3 has a step 32 matching the positioning guide structure 29, and the bottom plate 30, the side wall 31 and the step 32 of the test tube rack 33 are moved against the drum 11.
  • the test tube rack 3 is positioned in the drum 11 by the stopper device 15 to prevent the test tube rack 3 from being displaced in the drum 11 during the mixing.
  • the motor 16 drives the pulley 12 and the roller 9 and the roller 10 to rotate, so that the entire row of test tubes 26 on the test tube rack 33 is performed 360. Rotate.
  • stopper 15 The operation of the stopper 15 will be described in detail below.
  • the rolling bearing 23 is caught in the recess 34 of the test tube rack 3.
  • the drag device 4 pushes the test tube rack 3
  • the rolling bearing 23 is lifted over the recess 34 of the test tube rack 3, at which time the spring 27 in the stop device 15 is compressed, the test tube Frame 3 passed smoothly.
  • the drag device 4 is not laterally strong against the test tube rack 3, at which time the rolling bearing 23 just snaps into the groove 34 on the test tube rack 3, so that the horizontal free movement of the test tube rack 3 is blocked, and the spring 27 is downward.
  • the test tube rack 3 is closely pressed against the bottom of the drum 11, and the test tube rack 3 does not shift in the drum 11 during the rotation of the drum 11.
  • microswitches are provided on both sides of the drum 11 to ensure that the entire test tube rack 3 and all the test tubes 26 are located inside the drum 11.
  • the rolling bearing 23 of the stopping device 15 is caught in the groove 34 of the test tube rack 3, pushes the test tube rack 3, and the rolling bearing 23 is lifted over the groove 34 of the test tube rack 3, at which time the spring 27 in the stopper device 15 is compressed, the test tube rack 3 smoothly passes, when the appropriate position is reached, the test tube rack 3 is laterally unstressed, the rolling bearing 23 just snaps into the groove 34, so that the horizontal free movement of the test tube rack 3 is blocked, and the test tube rack 3 is closely abutted by the spring 27 At the bottom of the drum 11, the test tube rack 3 does not shift in the drum 11 during the rotation of the drum 11.

Abstract

一种用于血细胞分析仪的进样取样装置,其包括装载装置,用于存放盛有样品血液的试管的试管架(3);拖拽装置(4),用于将进样取样装置存放的试管送至混匀装置(5);混匀装置(5),用于将试管内的样品血液混合均匀;穿刺采样装置(6),用于分析血细胞成分;卸载装置(7),用于对试管架(3)进行卸载。上述各个装置相互配合,实现了对待分析血液样品进样取样的完全自动化。

Description

用于血细胞分析仪的进样取样装置 本申请要求于 2012 年 3 月 29 日提交中国专利局、 申请号为 201210088038.X, 发明名称为"用于血细胞分析仪的进样取样装置"的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及医疗卫生器械, 更具体地说, 涉及一种用于血细胞分析仪 的进样取样装置。
背景技术
血细胞分析仪是医院临床检验应用非常广泛的仪器之一, 随着近几年 计算机技术的日新月异的发展,血细胞分析的技术也从三分群转向五分群, 从二维空间进而转向三维空间, 而且我们也注意到现代血细胞分析仪的五 分类技术许多采用了和当今非常先进的流式细胞仪相同的技术, 如散射光 检测技术、 鞘流技术、 激光技术等等。
专利号为 ZL 01123219.6的中国专利公开了一种处理血液制品样品的 装置, 包含传送装置, 用于在预定路径上逐个移动盒子; 摇动装置, 其带 有至少一个捡取装置, 该捡取装置能够由驱动装置启动, 从在路径上不动 的盒子中至少捡取一个选定的试管, 从路径上不动的盒子中至少捡取一个 选定的试管, 使试管远离盒子, 摇动试管并将试管放回盒子内, 以及取样 装置,其能够从已经放回盒子内的预先摇动过的试管中抽出给定量的样品。 上述摇动装置将盛有血液样品的试管夹持在抓取其上的抓取装置上用样品 混合均匀。 作业时, 捡取装置从固定在传送装置的路径上的盒子中至少捡 取两个已选定的试管, 然后将试管一起摇动两次。 上述摇动装置在摇动试 管时, 需要捡取装置分别抓取试管, 例如, 该专利中的捡取装置一次能够 抓取两个选定的试管, 当需要对十个试管内的血液样品进行混合操作时, 捡取装置每次抓取两个试管, 运输效率偏低。
因此,如何研究出一种提高血细胞分析仪中运输效率的进样取样装置, 成为本领域技术人员亟待解决的技术问题。 发明内容
因此, 本发明的目的在于, 提供一种用于血细胞分析仪的进样取样装 置, 以提高血细胞分析仪的运输效率。
为了实现上述目的, 本发明用于血细胞分析仪的进样取样装置, 包括 装载装置,用于存放盛有样品血液的试管的试管架并进行装载;拖拽装置, 用于将装载装置存放的试管送至混勾装置; 混勾装置, 用于将试管内的样 品血液混合均匀; 穿刺采样装置, 用于分析血细胞成分; 卸载装置, 用于 对试管架进行卸载并对试管架进行保存。
优选地, 所述装载装置、 卸载装置结构相同, 所述装载装置包括可容 纳试管架的载物盘和可滑动地设置在载物盘上的推样块, 所述推样块设置 在载物盘的一端, 并可推动所述试管架向远离所述载物盘另一端的方向移 动, 所述试管架盛放多个试管。
优选地, 所述载物盘的两侧设置有导向杆, 所述推样块穿过该导向杆 并可沿导向杆进行纵向滑动; 当所述载物盘每侧设置有一根导向杆时, 所 述载物盘靠近载物盘载物面的边缘以及远离载物盘载物面的边缘均设置有 卡设部, 所述推样块在卡设部和导向杆的共同作用下滑动; 当所述载物盘 每侧设置有至少两根导向杆时, 每根导向杆平行设置, 所述推样块可顺利 在导向杆的作用下推动试管架向预定方向运动。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述载物盘每 侧设置有至少两根导向杆时, 每根导向杆平行设置, 所述推样块可顺利在 导向杆的作用下推动试管架向预定方向运动。
优选的, 包括抓取试管架横向移动的抓手和驱动抓手纵向移动驱动机 构。
优选的, 所述拖拽装置还包括一对拖拽装置进行导向的横向导轨。 优选的, 所述驱动机构为齿轮齿条传动机构。
优选的, 所述驱动机构包括可套装在横向导轨上的固定座, 该固定座 上通过固定盖安装有马达, 马达的输出轴上固定有齿轮; 固定在固定座上 的导向块; 可滑动的设置在导向块上的滑块, 该滑块上设置有抓手以及与 齿轮相配合的齿条; 和将滑块加持在导向块的夹板。
优选的, 所述抓手上设置有圓柱孔, 通过安装在所述圓柱孔上的销釘 将所述抓手固定在所述滑块上。
优选的, 所述抓取试管架横向移动为通过皮带传动机构实现。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述混勾装置 包括能够旋转 360。 滚轮和承载试管架的滚筒, 其中, 所述滚筒滚轮固定 在一起, 且所述滚筒内部具有容纳试管架的空间。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述滚轮上设 置有皮带, 通过皮带传动与第一马达配合。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 还包括制动装 置。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述制动装置 包括第二马达、 固定结构、 螺杆、 楔块和挡块, 其中, 所述第二马达固定 在所述固定结构上, 所述螺杆一端穿过所述固定结构上的圓孔与所述第二 马达相连, 所述楔块套设在螺杆上其内表面与所述螺杆上的螺纹相配合, 所述固定结构下部具有容纳所述楔块的凹槽,所述挡块与所述凹槽相匹配。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述制动装置 固定在连接板上。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 还包括控制所 述第二马达运行的光电开关,所述楔块上设置有触发所述光电开关的弹片。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 还包括设置在 所述滚筒上并卡住所述试管架的止动装置。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述止动装置 包括弹簧、 固定结构, 连接结构和滚动轴承, 其中, 所述连接结构上端设 有一直径与弹簧相配合的凹孔用于容纳所述弹簧, 所述弹簧其中一段放置 在凹孔内, 一段棵露在凹孔外; 连接结构下端向前延伸形成一与滚动轴 7 相配合的轴, 所述滚动轴承套设在该轴上, 轴的前端设置螺母以防止滚动 轴从轴上滑落下来; 所述固定结构固定在滚筒侧壁上。
优选地,在上述用于血细胞分析仪的进样取样装置中,,所述试管架包 括底板、 侧壁和环形套, 其中, 所述底板上设置有与所述抓手相配合的孔 状结构; 所述侧壁垂直设置在所述底板上, 形成整个所述试管架的主要支 撑结构; 所述环形套设置在侧壁上, 所述环形套或者所述环形套与侧壁形 成盛放试管的空间。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 所述侧壁上横 向布置有十个环形套。
优选地, 在上述用于血细胞分析仪的进样取样装置中, 十个所述环形 套中的每个环形套纵向增设有另一个环形套。
本发明实施例中的用于血细胞分析仪的进样取样装置,包括装载装置, 用于存放盛有样品血液的试管的试管架; 拖拽装置, 用于将进样取样装置 存放的试管送至混匀装置; 混匀装置,用于将试管内的样品血液混合均匀; 穿刺采样装置, 用于分析血细胞成分; 卸载装置, 用于对试管架进行卸载; 其中, 所述装载和卸载装置结构相同,
由于装载装置内的试管, 在拖拽装置的作用下送至混勾装置内, 经过 混勾装置混合均勾后再由拖拽装置将所承载样品血液的试管托送到穿刺采 样装置, 进行采样; 样品分析过程中, 所承载的试管再次进入混匀装置内 进行多次反复混匀, 使得混匀更加充分; 最后分析检测结束后试管被推出 并卸入卸载装置, 因此该装置实现对血液进行进样取样的完全自动化。
附图说明
图 1是本发明实施例提供的血细胞分析仪立体结构示意图;
图 2是本发明实施例提供的血细胞分析仪俯视结构示意图;
图 3是本发明实施例提供的试管架俯视结构示意图;
图 4是本发明实施例提供的试管架仰视结构示意图;
图 5和图 6是本发明实施例提供拖拽装置的多角度结构示意图;
图 7是本发明实施例提供拖拽装置的爆炸结构示意图;
图 8是本发明实施例提供传动装置的侧视结构示意图;
图 9是本发明实施例提供传动装置的爆炸结构示意图;
图 10是本发明实施例提供的混匀装置立体结构示意图; 图 11是本发明实施例提供的混匀装置的爆炸结构示意图;
图 12是本发明实施例提供的制动装置立体结构示意图;
图 13是本发明实施例提供的制动装置爆炸结构示意图
图 14是本发明实施例提供的止动装置爆炸结构示意图;
图 15是本发明实施例提供的止动装置剖视结构示意图;
图 16是本发明实施例提供的止动装置安装结构示意图。
具体实施方式
下面结合附图对本发明进行详细描述, 本部分的描述仅是示范性和解 释性, 不应对本发明的保护范围有任何的限制作用。
如图 1和图 2所示, 该进样取样装置包括装载装置, 用于存放盛有样 品血液的试管的试管架并进行装载; 拖拽装置 4, 用于将进样取样装置存 放的试管送至混匀装置; 混匀装置 5 , 用于将试管内的样品血液混合均匀; 穿刺采样装置 6, 用于分析血细胞成分; 卸载装置 7 , 用于对完成进样取样 的试管架进行卸载。
上述进样取样装置具体工作过程为: 装载装置内的试管架 3 , 在拖拽 装置 4的作用下送至混勾装置 5内, 经过混勾装置 5混合均勾后再由拖拽 装置 4将所承载样品血液的试管托送到穿刺采样装置 6, 进行采样; 样品 分析过程中, 所承载的试管再次进入混匀装置 5内进行多次反复混匀, 使 得混匀更加充分; 最后分析检测结束后试管架 3被推出并卸入卸载装置 7 的载物盘 8内。 如图 3和图 4所示, 本实施例中的试管架 3可盛放多个试管 26, 血液 样品盛放在试管 26内, 并用塞子封闭, 且相邻试管 26之间距离相同。
本实施例中的试管架 3 包括底板 30、 侧壁 31和环形套 32, 侧壁 31 垂直设置在底板 30上, 形成整个试管架 3的主要支撑结构; 环形套 32设 置在侧壁 31上,环形套 32或者环形套 32与侧壁 31形成盛放试管 26的空 间, 本实施例中优选的横向布置有十个环形套 32, 用于盛放十个试管 26; 为了防止试管 26发生晃动, 该试管架 3中每个环形套 32的纵向均增设有 一个环形套 32, 纵向设置的环形套 32之间具有预设距离, 使得位于环形 套 32内的试管 26受力更为合理。
其中, 上述试管架 3中, 环形套 32可以通过机械结构固定在侧壁 31 上, 例如采用螺釘固定在侧壁 31上; 还可以设置为一体式结构, 具体地通 过注塑形成一体式结构。
为了方便安装, 侧壁 31顶端设有与试管 26间距相同的凹槽 34, 且水 平方向设有台阶 32。 在试管架 3的底板 30上设有孔状结构, 以方便后续 装置的夹持, 具体地该孔状结构为方形孔结构, 且该方形孔包括套管以及 将该套管固定在底板 30 上的加强肋, 加强肋以套管为中心向四周发散布 置, 不仅保证了套管的强度, 还最大限度的节省了原料。 上述底板 30与孔 状结构可设置为一体式结构, 具体地通过注塑加工成一体式结构。 本发明实施例中的装载装置包括载物盘 1和推样块 2,其中,载物盘 1 可容纳试管架 3 , 试管架 3可滑动地设置在载物盘 1上; 推样块 2设置在 载物盘 1的一端, 并可推动试管架 3向远离载物盘 1另一端的方向移动。
具体地, 载物盘 1的两侧设置有导向杆, 推样块 2穿过该导向杆并可 沿导向杆进行纵向滑动。 上述载物盘 1每侧设置有一根导向杆时, 载物盘 1靠近载物盘 1载物面的边缘以及远离载物盘 1载物面的边缘均设置有卡 设部, 该推样块在卡设部和导向杆的共同作用下滑动; 上述载物盘 1每侧 设置有至少两根导向杆时, 每根导向杆平行设置, 此时该推样块 2可顺利 在导向杆的作用下推动试管架 3向预定方向运动。
试管架 3在载物盘 1上的纵向移动是在推样块 2的推动作用下完成, 当试管架 3从载物盘 1的始端移动到末端时, 试管架 3进入横向轨道并在 拖拽装置 4的作用下完成横向移动。
卸载装置的结构与装载装置相同, 二者区别在于一个位于整个进样取 样装置的装载处, 一个位于所述进样取样装置的卸载处。 如图 5至图 9所示的拖拽装置 4, 该拖拽装置 4可以是马达 36驱动的 齿轮齿条传动机构, 也可以是马达 36驱动的凸轮机构, 在马达 36的驱动 下, 通过齿轮齿条传动机构或是凸轮机构传动下, 均可实现拖拽装置 4的 拖拽部上下直线运动, 该拖拽部具体为抓手。 抓手向上运动, 到达顶部极 限位置时,抓手深入试管架 3底部的孔状结构中,整个拖拽装置 44沿横向 导轨横向移动从而带动试管架 3在预定的轨道上运动;当抓手向下运动时, 抓手与试管架 3分离,整个拖拽装置 4就可以单独的在预定的轨道中运动。
在此仅以齿轮齿条传动为例叙述, 该拖拽装置 4包括可上下运动的抓 手 39和驱动机构, 驱动机构驱动抓手 39上下移动。 具体地该驱动机构包 括可套装在横向轨道上的固定座 42, 该固定座 42上通过固定盖 44安装有 马达 36, 马达 36的输出轴上固定有齿轮 37; 固定在固定座 42上的导向块 41 ; 可滑动的设置在导向块 41上的滑块, 该滑块上设置有抓手 39以及与 齿轮 37相配合的齿条 38, 其中, 抓手 39上设置有圓柱孔 54, 通过安装在 圓柱孔 54上的销釘将抓手固定在滑块上; 和将滑块加持在导向块 41的夹 板 48。
当拖拽装置 4到达预定位置时, 由马达 36带动齿轮 37旋转, 齿轮 37 的旋转使得齿条 38沿齿条 38导向块 41向上运动。 齿条 38运动过程中, 齿条 38无齿形的一侧紧靠在导向块 41的内侧壁 31上, 沿导向块 41上下 运动。 在齿条 38靠近导向块 41的一侧上有一凸起的圓柱 52, 上下运动过 程中圓柱 52位于导向块 41中间的条形凹槽 53内, 起到机械限位的作用, 该圓柱 52可以是实体圓柱销釘, 也可以是一能够自由转动的滑轮。
当齿轮 37到达一定高度时,固定在滑块上的齿条 38带动抓手 39插入 试管架 3底板 30上的孔状结构中,这样,试管架 3拖拽装置 4在横向运动 过程中即可带动试管架 3同时运动。 当该装置无需带动试管架 3运动时, 马达 36反向转动一定角度, 齿条 38向下运动回程, 抓手 39脱离试管架 3 底部的孔状结构。
该固定座 42上设置有与横向导轨相配合的通孔 43 , 其中, 减少固定 座 42的磨损, 通孔 43的两端分别设置有导向套 50, 该导向套 50通过固 定法兰 49进行固定。
为了更好的把握抓手 39的运行时间,该拖拽装置 4上还设置有光电传 感器 45 , 其中, 滑块上固定有用于启动光电传感器 45的金属片 51 , 当抓 手 39移动到预设位置时,金属片 51与光电传感器 45接触, 启动光电传感 器 45运行, 此时光电传感器 45发送控制信号驱动马达 36逆向运行。
齿条 38的另一侧设有一金属片 51 , 在齿条 38运动过程中金属片 51 也随之上下运动, 到达预定位置时金属片 51 触发位于前端的光电传感器 45 , 从而控制马达 36的工作状态。
整个试管架 3拖拽装置 44由主机马达 36带动, 同步带 (未注出) 紧 固在夹板 48上, 通孔 43与横向导轨(未注出) 间隙配合, 使得试管架 3 拖拽装置 4在马达 36的带动下沿横向导轨做横向运动。
在齿条 38上固定了一个滚轮 40,滚轮 40位于试管架 3横向导轨之间, 在试管架 3拖拽装置 4横向运动过程中, 滚轮沿试管架 3横向导轨内表面 滚动, 从而起到导向作用。 这样整个试管架 3拖拽装置 4在运动过程中由 横向导轨和滚轮 40导向,避免整个试管架 3拖拽装置 4在运动是左右摇摆。 拖拽装置 4将试管架 3运送到混勾装置 5后, 混勾装置 5摇动试管架 3 , 从而摇动试管架 3上放置的试管 26。
如图 10和图 11所示, 该混匀装置 5包括能够旋转 360。 的滚轮 9, 滚 轮 10和承载试管架 3的滚筒 11 , 其中, 滚筒 11与滚轮 9和滚轮 10固定 在一起, 且滚筒 11内部具有容纳试管架 3的空间; 滚轮 9和滚轮 10在马 达 13的驱动作用下旋转。 试管架 3在拖拽装置 4的作用下运输到滚筒 11 内部, 并固定在滚筒 11 内部,, 混勾装置通过支撑架固定在所述横向导轨 上方。
以下将详细说明中间混匀装置 5的工作过程。
在本实施例中优选的,马达 13通过带传动驱动滚轮 9和滚轮 10转动, 从而实现整排试管 26同一时间旋转 180。 或 360。 , 从而使得样品充分混 匀。 混匀结束之后, 光电开关 19向马达 13发送信号, 马达 13停止转动。 为了优化上述混勾装置 5 , 如图 12至图 13所示, 本实施例中的混匀 装置 5上还设置有制动装置 14, 待混勾装置 5内的试管架 3旋转 180。 或 360° 后便制动的制动装置 14, 该制动装置 14对整个滚筒 11进行机械制 动。 在滚筒 11上端设有光电开关 19和制动装置 14。 该制动装置 14包括 马达 16、 固定结构 17、 螺杆 18、 楔块 21和挡块 22, 其中, 马达 13固定 在固定结构 17上,螺杆 18—端穿过固定结构 17上的圓孔与马达 13相连, 楔块 21套设在螺杆 18上其内表面与螺杆 18上的螺纹相配合, 马达 13带 动螺杆 18转动从而带动楔块 21向下运动,固定结构 17下部具有容纳楔块 21的凹槽 34, 当楔块 21没有向下运动时,便容纳在该固定结构 17的凹槽 34里面, 挡块 22与楔块 21的凹槽 34相匹配。 整个制动装置 14通过固定 结构 17下端周边固定在一块固定在混勾装置的支撑架上的连接板 171上而 进行固定,该连接板 171为中空,中间的孔洞可以容纳楔块 21上下的运动。 挡块 22固定在混勾装置 5的滚筒 11上,通过对挡块 22进行制动,从而控 制滚筒 11转动。
当混勾完成后, 弹片 20触发光电开关 19, 马达 16停止工作, 同时马 达 16通过螺杆 18带动楔块 21向下,挡块 22插入楔块 21中,起到机械制 动, 以防止由于转动惯性和光电传感器滞后或失效导致的沖过现象。 为了进一步优化上述混匀装置 5 , 如图 14至图 16所示, 本实施例中 的混勾装置 5上还设置有止动装置 15 , 如图所示, 该止动装置 15包括弹 簧 27、 固定结构 25 , 连接结构 24和滚动轴承 23 , 其中, 连接结构 24上 端设有一直径与弹簧 27相配合的凹孔用于容纳弹簧 27, 弹簧 27其中一段 放置在凹孔内, 一段棵露在凹孔外; 连接结构 24固定在固定结构 25的安 装孔 28内,其上的弹簧 27的上端面顶在固定结构 25的上端的下表面并通 过该面的顶压产生一定的弹性张力; 固定结构 25 固定在滚筒 11侧壁 31 上; 连接结构 24下端向前延伸形成一与滚动轴 7| 23相配合的轴, 所述滚 动轴承 23 套设在该轴上, 轴的前端设置螺母以防止滚动轴从轴上滑落下 来。 滚筒 11固定在两个滚轮 9和滚轮 10之间,滚筒 11内设有一条形的与 试管架 3侧壁 31台阶 32相匹配的定位导向结构 29,试管架 33的底板 30、 侧壁 31以及台阶 32顶靠在滚筒 11内运动。 当试管架 33及所承载的试管 26进入滚筒 11后, 由止动装置 15将试管架 3定位在滚筒 11中, 以防在 混匀过程中试管架 3在滚筒 11中发生位移。马达 16带动带轮 12以及滚轮 9和滚轮 10转动, 从而使得整排位于试管架 33上的试管 26进行 360。 旋 转。
以下将详细说明止动装置 15工作过程。
滚动轴承 23卡在试管架 3的凹槽 34内, 当拖拽装置 4推动试管架 3 时, 滚动轴承 23越过试管架 3凹槽 34而抬起,此时止动装置 15内的弹簧 27压缩, 试管架 3顺利通过。 当达到合适位置后, 拖拽装置 4对试管架 3 横向不实力, 这时滚动轴承 23恰好卡在试管架 3上的凹槽 34中, 使得试 管架 3水平自由运动受阻,且在弹簧 27向下的作用下试管架 3紧密地顶靠 在滚筒 11底部,在滚筒 11旋转过程中试管架 3不会在滚筒 11内发生偏移。
另外,在滚筒 11的两侧设有微动开关, 以确保整个试管架 3及所有试 管 26均位于滚筒 11内部。 止动装置 15的滚动轴承 23卡在试管架 3的凹 槽 34内, 推动试管架 3 , 滚动轴承 23越过试管架 3凹槽 34而抬起, 此时 止动装置 15内的弹簧 27压缩, 试管架 3顺利通过, 当达到合适位置后试 管架 3横向不受力, 滚动轴承 23恰好卡在凹槽 34中, 使得试管架 3水平 自由运动受阻,且在弹簧 27的作用下试管架 3紧密地顶靠在滚筒 11底部, 在滚筒 11旋转过程中试管架 3不会在滚筒 11内发生偏移。

Claims

权 利 要 求
1、 一种用于血细胞分析仪的进样取样装置, 其特征在于, 包括装载装 置, 用于存放盛有样品血液的试管的试管架并进行装载; 拖拽装置, 用于 将装载装置存放的试管送至混匀装置; 混匀装置, 用于将试管内的样品血 液混合均匀; 穿刺采样装置, 用于分析血细胞成分; 卸载装置, 用于对试 管架进行卸载并对试管架进行保存。
2、如权利要求 1所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述装载装置、 卸载装置结构相同, 所述装载装置包括可容纳试管架 的载物盘和可滑动地设置在载物盘上的推样块, 所述推样块设置在载物盘 的一端, 并可推动所述试管架向远离所述载物盘另一端的方向移动, 所述 试管架盛放多个试管。
3、如权利要求 2所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述载物盘的两侧设置有导向杆, 所述推样块穿过该导向杆并可沿导 向杆进行纵向滑动; 当所述载物盘每侧设置有一根导向杆时, 所述载物盘 靠近载物盘载物面的边缘以及远离载物盘载物面的边缘均设置有卡设部, 所述推样块在卡设部和导向杆的共同作用下滑动; 当所述载物盘每侧设置 有至少两根导向杆时, 每根导向杆平行设置, 所述推样块可顺利在导向杆 的作用下推动试管架向预定方向运动。
4、如权利要求 1所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述拖拽装置包括抓取试管架横向移动的抓手和驱动抓手纵向移动驱 动机构。
5、如权利要求 4所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述拖拽装置还包括一对拖拽装置进行导向的横向导轨。
6、如权利要求 4所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述驱动机构为齿轮齿条传动机构。
7、如权利要求 6所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述驱动机构包括可套装在横向导轨上的固定座, 该固定座上通过固 定盖安装有马达, 马达的输出轴上固定有齿轮; 固定在固定座上的导向块; 可滑动的设置在导向块上的滑块, 该滑块上设置有抓手以及与齿轮相配合 的齿条; 和将滑块加持在导向块上的夹板。
8、如权利要求 7所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述抓手上设置有圓柱孔, 通过安装在所述圓柱孔上的销釘将所述抓 手固定在所述滑块上。
9、如权利要求 8所述的用于血细胞分析仪的进样取样装置,其特征在 于, 所述抓取试管架横向移动为通过皮带传动机构实现。
10、 如权利要求 1所述的用于血细胞分析仪的进样取样装置, 其特征 在于, 所述混匀装置包括能够旋转 360。 滚轮和承载试管架的滚筒, 其中, 所述滚筒滚轮固定在一起, 且所述滚筒内部具有容纳试管架的空间。
11、如权利要求 10所述的用于血细胞分析仪的进样取样装置,其特征 在于, 所述滚轮上设置有皮带, 通过皮带传动与第一马达配合。
12、如权利要求 11所述的用于血细胞分析仪的进样取样装置, 其特征 在于, 还包括制动装置。
13、如权利要求 12所述的用于血细胞分析仪的进样取样装置,其特征 在于, 所述制动装置包括第二马达、 固定结构、 螺杆、 楔块和挡块, 其中, 所述第二马达固定在所述固定结构上, 所述螺杆一端穿过所述固定结构上 的圓孔与所述第二马达相连, 所述楔块套设在螺杆上其内表面与所述螺杆 上的螺纹相配合, 所述固定结构下部具有容纳所述楔块的凹槽, 所述挡块 与所述凹槽相匹配。
14、如权利要求 13所述的用于血细胞分析仪的混勾装置,其特征在于, 所述制动装置固定在连接板上。
15、如权利要求 14所述的用于血细胞分析仪的进样取样装置,其特征 在于, 还包括控制所述第二马达运行的光电开关, 所述楔块上设置有触发 所述光电开关的弹片。
16、 如权利要求 10-15 中任一项所述的用于血细胞分析仪的进样取样 装置, 其特征在于, 还包括设置在所述滚筒上并卡住所述试管架的止动装 置。
17、如权利要求 16所述的用于血细胞分析仪的进样取样装置,其特征 在于, 所述止动装置包括弹簧、 固定结构, 连接结构和滚动轴承, 其中, 所述连接结构上端设有一直径与弹簧相配合的凹孔用于容纳所述弹簧, 所 述弹簧其中一段放置在凹孔内, 一段棵露在凹孔外; 连接结构下端向前延 伸形成一与滚动轴 7|相配合的轴, 所述滚动轴 7|套设在该轴上, 轴的前端 设置螺母以防止滚动轴从轴上滑落下来;所述固定结构固定在滚筒侧壁上。
18、 如权利要求 4-9中任一项所述的用于血细胞分析仪的进样取样装 置, 其特征在于, 所述试管架包括底板、 侧壁和环形套, 其中, 所述底板 上设置有与所述抓手相配合的孔状结构;所述侧壁垂直设置在所述底板上, 形成整个所述试管架的主要支撑结构; 所述环形套设置在侧壁上, 所述环 形套或者所述环形套与侧壁形成盛放试管的空间。
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CN110823641A (zh) * 2019-11-07 2020-02-21 李敏 一种检验科用血液取样装置

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