Consistency testing device for blood culture instrument

Abstract

The utility model discloses a blood culture instrument consistency testing device which comprises a first supporting frame, a balance weight base is arranged on the first supporting frame, the balance weight base is connected with a six-axis mechanical arm, a cross-shaped connecting piece is installed at the tail end of the six-axis mechanical arm, the cross-shaped connecting piece is of a rotational symmetrical structure with four connecting ends, and the four connecting ends are connected through a connecting rod. The rotational symmetry center of the cross-shaped connecting piece is rotationally connected with the six-axis mechanical arm, and the four connecting ends of the cross-shaped connecting piece are connected with the four calibration rods correspondingly. The first supporting frame is further provided with a right-angle-shaped positioning frame extending to the position above the second supporting frame. The device is ingenious in structure, convenient to use, low in cost and high in mechanical arm movement precision, and the calibration rod can be quickly and accurately fed into a horizontal culture hole site; the cross-shaped connecting piece is directly connected with the four calibration rods, and the calibration rods can be quickly replaced through rotation, so that the time for taking and placing the calibration rods in the midway is saved; and the device is connected with an automatic control system, so that automatic data uploading can be realized, and the consistency testing efficiency of the blood culture instrument is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood culture dish testing, in particular to a blood culture instrument consistency testing device. Background Art

[0002] The blood culture instrument is a rapid microbial culture device that uses homogeneous fluorescence enhancement detection technology, that is, the fluorescent sensor at the bottom of the culture bottle is stimulated by the metabolites produced by bacteria to produce fluorescence. The fluorescence intensity continues to increase with the increase in the number of bacteria. The system determines whether there is microbial growth based on the fluorescence change trend. In order to ensure the accuracy of the test results, it is necessary to use a calibration rod to perform consistency testing on each culture well on a single blood culture instrument. For each culture well, four calibration rods need to be calibrated once. In traditional manual operation, it is necessary to first insert a calibration rod into a culture well, and after calibration, the transmittance of the white film at its end is uploaded to the instrument. Only then can another calibration rod be replaced until all four calibration rods are calibrated before calibrating the next well. For blood culture instruments that often have dozens of culture wells, it is not only time-consuming and labor-intensive, but also prone to errors. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a blood culture instrument consistency test device, which can specifically adopt the following technical solutions:

[0004] The blood culture instrument consistency testing device described in the utility model comprises a first support frame, a counterweight base is arranged on the first support frame, the counterweight base is rotatably connected to one end of a six-axis robotic arm, a cross connector is arranged on the other end of the six-axis robotic arm, the cross connector is a rotationally symmetrical structure with four connecting ends, the rotational symmetry center of the cross connector is rotatably connected to the six-axis robotic arm, and the four connecting ends of the cross connector are respectively connected to four calibration rods; a right-angle positioning frame extending to the top of the second support frame is also arranged on the first support frame, a blood culture instrument positioned by the right-angle positioning frame is arranged on the second support frame, a plurality of evenly arranged culture wells are horizontally arranged on the blood culture instrument, and the inner diameter of the culture wells is matched with the outer diameter of the calibration rods.

[0005] Four corners of the bottom of the first support frame are provided with Fuma wheels.

[0006] The six-axis robotic arm is formed by six arm sections that are connected and rotated in sequence.

[0007] The calibration rod is arranged along the radial direction of the cross connection member, or is arranged at an angle of α° with the radial direction of the cross connection member.

[0008] Five weight-reducing holes are symmetrically arranged on the cross connecting piece.

[0009] The right-angle positioning frame is assembled from aluminum profiles and aluminum profile connectors.

[0010] The blood culture instrument consistency test device provided by the utility model, after adjusting the relative position of the blood culture instrument and the mechanical arm through the positioning mechanism, fixes four calibration rods on the cross connector at the end of the six-axis mechanical arm in sequence, so that the mechanical arm moves according to the specified logic and point positions, so that the calibration rods perform consistency tests on each culture hole position one by one according to the established order, and upload the light transmittance of the white film to the database through the data transmission system. The utility model has a clever structure, is easy to use, and has low cost. Its mechanical arm has high movement accuracy and can quickly and accurately send the calibration rod into the horizontal culture hole position; the cross connector is directly connected to the four calibration rods, which can be quickly replaced by rotating, saving the time of taking and placing the calibration rods in the middle; it is connected to the automatic control system to realize automatic data upload, thereby greatly improving the efficiency of the blood culture instrument consistency test. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle cross connector and the calibration rod. DETAILED DESCRIPTION

[0013] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific working process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0014] like Figure 1 , 2 As shown, the blood culture instrument consistency testing device described in the utility model includes a first support frame 1, and the first support frame 1 can be set into a box shape to facilitate storage of items. In addition, the four corners of the bottom are provided with Forma wheels 11 for easy movement.

[0015] A counterweight base 2 made of cast iron is installed on the first support frame 1, and a six-axis robot 3 is installed on the counterweight base 2, which is formed by six arm sections connected in rotation in sequence (the Z-Arm S622 six-axis robot of "Huiling Technology Company" can be selected). One end of the above-mentioned six-axis robot 3 is connected to the counterweight base 2 for rotation, and the other end is connected to the cross connector 4 for rotation. The above-mentioned cross connector 4 is a rotationally symmetrical structure with four connecting ends, and its rotational symmetry center is connected to the six-axis robot 3 for rotation, and the four connecting ends are connected to four calibration rods 5 respectively. Usually, the calibration rod 5 is arranged along the radial direction of the cross connector 4, and can also be arranged at an angle of α° to the radial direction of the cross connector 4. In order to reduce the load of the six-axis robot 3 and make the calibration rod 5 move more accurately, five weight-reducing holes 6 are symmetrically arranged on the cross connector 4. Four threaded holes are opened on the cross connector 4, and the calibration rod 5 is connected to the cross connector 4 by screwing the screws into the threaded holes and pressing the calibration rod 5 with the screws to prevent the calibration rod 5 from being separated from the cross connector 4 during operation.

[0016] The first support frame 1 is also provided with a right-angled positioning frame 8 extending to the top of the second support frame 7. The right-angled positioning frame 8 is assembled with aluminum profiles and aluminum profile connectors, and is used to position the blood culture instrument 9 placed on the second support frame 7. The culture hole positions 10 on the blood culture instrument 9 are arranged in the horizontal direction, and their inner diameter is adapted to the outer diameter of the calibration rod 5. The rotational symmetry center of the cross connector 4 coincides with the rotation center of the rotating mechanism at the end of the six-axis robot 3. When switching the calibration rod 5, it is only necessary to rotate the specified fixed angle at a fixed point. The mechanism can ensure that the center of the calibration rod 5 coincides with the center of the culture hole position 10 every time, and other parts of the robot arm do not need to be moved, thereby reducing the programming workload of the robot arm and the switching efficiency of the calibration rod.

[0017] When in use, place the blood culture instrument 9 on the second support frame 7, then move the first support frame 1 nearby, and clamp the right-angle positioning frame 8 on the outside of the blood culture instrument 9. After completing the positioning of the robot arm 3, fix the Formazan wheel 11. Then start the six-axis robot arm 3, so that the six-axis robot arm 3 moves according to the logic and points specified by the control system, and performs consistency checks on each culture hole position 10 one by one. When performing consistency checks on one of the culture hole positions 10, adjust the six-axis robot arm 3 so that the first calibration rod 5 is aligned with the culture hole position 10. After being inserted horizontally for a certain period of time, the transmittance of the white film is uploaded to the database; then, rotate the cross connector 4 90°, use the second calibration rod 5 to detect the culture hole position 10, and upload the data; according to the above operations, complete the calibration of the hole position by the other two calibration rods 5.

[0018] The utility model adopts a cross connector 4 to cleverly connect the calibration rod 5 with the six-axis robotic arm 3, which not only improves the repeat positioning accuracy, but also reduces the time for replacing the calibration rod 5, and realizes efficient calibration of each culture well position 10. It has a simple structure, low cost, high efficiency and low error rate.

[0019] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

Claims

1. A blood culture instrument consistency test device, characterized in that: It includes a first support frame, a counterweight base is provided on the first support frame, the counterweight base is rotatably connected to one end of the six-axis robot arm, the other end of the six-axis robot arm is provided with a cross connector, the cross connector is a rotationally symmetrical structure with four connecting ends, the rotational symmetry center of the cross connector is rotatably connected to the six-axis robot arm, and the four connecting ends of the cross connector are respectively connected to four calibration rods; the first support frame is also provided with a right-angle positioning frame extending to the top of the second support frame, the second support frame is provided with a blood culture instrument positioned by the right-angle positioning frame, the blood culture instrument is horizontally provided with a plurality of evenly arranged culture wells, the inner diameter of the culture wells is adapted to the outer diameter of the calibration rods.

2. The blood culture instrument consistency test device according to claim 1, characterized in that: Four corners of the bottom of the first support frame are provided with Fuma wheels.

3. The blood culture instrument consistency test device according to claim 1, characterized in that: The six-axis robotic arm is formed by six arm sections that are connected and rotated in sequence.

4. The blood culture instrument consistency test device according to claim 1, characterized in that: The calibration rod is arranged along the radial direction of the cross connection member, or is arranged at an angle of α° with the radial direction of the cross connection member.

5. The blood culture instrument consistency test device according to claim 1, characterized in that: Five weight-reducing holes are symmetrically arranged on the cross connecting piece.

6. The blood culture instrument consistency test device according to claim 1, characterized in that: The right-angle positioning frame is assembled from aluminum profiles and aluminum profile connectors.

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