Constant-temperature cuvette module of portable drug concentration detector

Abstract

The utility model discloses a constant-temperature cuvette module of a portable drug concentration detector, which comprises a mounting shell, a cuvette is placed in the mounting shell, an electric heating plate and a temperature sensor are respectively arranged in the mounting shell, and the constant-temperature cuvette module further comprises a limiting mechanism; the limiting mechanism comprises a slot frame and limiting plates, the slot frame is in threaded connection with the interior of the mounting shell, the cuvette is located in the slot frame rotating at a fixed angle, the limiting plates are horizontally and slidably connected to the left end and the right end of the interior of the slot frame, and the limiting plates and the cuvette are mounted in a matched mode; the electric heating plate and the temperature sensor are arranged on the opposite inner side faces of the two limiting plates correspondingly. According to the constant-temperature cuvette module of the portable drug concentration detector, the limiting component does not need to be connected with the cuvette in advance, so that the time required for mounting the cuvette can be shortened, and the constant-temperature cuvette module of the portable drug concentration detector is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of pharmacokinetic experimental technology, specifically to a constant temperature cuvette module for a portable drug concentration detector. Background Technology

[0002] Pharmacokinetic experiments are experiments that study the absorption, distribution, metabolism, and excretion of drugs in organisms and their dynamic changes. In order to ensure the accuracy of the experimental results, a time-dependent drug concentration detector is needed to detect the drug concentration.

[0003] In the prior art, patent publication number CN 113567345 B discloses a cuvette temperature control device, including a temperature control cylinder for receiving the cuvette and a docking block for detachably mounted on the closed end of the cuvette. One end of the temperature control cylinder has a cylinder inlet for inserting the docking block and the cuvette. The temperature control cylinder is provided with a locking mechanism for locking the docking block. By adding a docking block for fixing the closed end of the cuvette and a locking mechanism for locking the docking block in the temperature control cylinder, the cuvette inserted in the temperature control cylinder can be effectively fixed, preventing the cuvette from accidentally falling off when the temperature control cylinder is moved. This is more suitable for portable drug concentration detectors. However, when fixing the cuvette, the docking block needs to be fixed on the closed end of the cuvette beforehand, which takes a long time and makes the installation of the cuvette inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a constant temperature cuvette module for a portable drug concentration detector. It eliminates the need to connect the limiting component to the cuvette in advance, which can reduce the time required for cuvette installation and make the use of the constant temperature cuvette module of the portable drug concentration detector more convenient. It can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a constant temperature cuvette module for a portable drug concentration detector, comprising a mounting shell, wherein a cuvette is placed inside the mounting shell, and an electric heating plate and a temperature sensor are respectively provided inside the mounting shell, and a limiting mechanism is also included;

[0006] The limiting mechanism includes a slot frame and a limiting plate. The slot frame is threadedly connected to the inside of the mounting shell. The cuvette is located inside the slot frame, which rotates at a fixed angle. The left and right ends of the slot frame are horizontally slidably connected to the limiting plates. The limiting plates are installed in conjunction with the cuvette. The heating plate and the temperature sensor are respectively set on the opposite inner sides of the two limiting plates.

[0007] Furthermore, the limiting mechanism also includes a turntable and an external threaded ring. The turntable is disposed at the upper end of the slot frame, and an external threaded ring is provided on the outer edge of the lower surface of the turntable. The external threaded ring is connected to the threaded thread at the upper end of the inner arc surface of the mounting shell to connect the slot frame and the mounting shell.

[0008] Furthermore, the limiting mechanism also includes a top pressure plate and a sliding column. The top pressure plate is respectively disposed on the inner arc surface of the mounting shell, and the sliding column is respectively disposed on the opposite outer sides of the two limiting plates. The sliding column is horizontally slidably connected to the sliding hole on the side of the slot frame. The top ball at the end of the sliding column is installed in conjunction with the top pressure plate to rigidly limit the limiting plate.

[0009] Furthermore, the limiting mechanism also includes springs, which are respectively disposed between the top ball of the sliding column and the side of the slot frame, and are respectively movably sleeved on the outer arc surface of the sliding column to elastically limit the limiting plate.

[0010] Furthermore, the limiting mechanism also includes rubber pads, which are respectively disposed on the opposite inner sides of the two limiting plates. The heating plate and the temperature sensor are both located in the groove inside the rubber pads, increasing the friction on the surface of the limiting plates.

[0011] Furthermore, the limiting mechanism also includes angle limiting plates, which are respectively disposed on the inner arc surface of the mounting shell. The angle limiting plates are installed in conjunction with the rectangular slot frame to limit the angle of the slot frame.

[0012] Furthermore, the upper surface of the turntable is provided with cylinders along its outer edge to facilitate the rotation of the slot frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By rotating the slot holder with the cuvette inserted, the two limiting plates move relative to each other, allowing the cuvette to be quickly installed on the drug concentration detector. Compared to the method of fixing the docking block to the cuvette for installation, there is no need to connect the limiting components to the cuvette in advance, which can reduce the time required for cuvette installation and make the use of the constant temperature cuvette module of the portable drug concentration detector more convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0017] Figure 3 This is a schematic diagram of the explosion-proof structure of the limiting mechanism of this utility model;

[0018] Figure 4This is a top view of the overall device of this utility model.

[0019] In the diagram: 1. Mounting shell, 2. Cuvette, 3. Heating plate, 4. Temperature sensor, 5. Limiting mechanism, 51. Slot bracket, 52. Limiting plate, 53. Turntable, 54. External threaded ring, 55. Top pressure plate, 56. Sliding column, 57. Spring, 58. Rubber pad, 59. Angle limiting plate, 6. Cylinder. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-4 This embodiment provides a technical solution: a constant-temperature cuvette module for a portable drug concentration detector, including an empty mounting shell 1 for setting up the cuvette module. A fixing plate is provided at the lower end of the outer arc surface of the mounting shell 1 to facilitate installation of the mounting shell 1 inside the portable drug concentration detector. A cuvette 2, providing space for the drug solution, is placed inside the mounting shell 1. An electric heating plate 3 and a temperature sensor 4 are respectively provided inside the mounting shell 1. Both the electric heating plate 3 and the temperature sensor 4 are commonly used in the prior art. The input end of the electric heating plate 3 is electrically connected to the output end of the portable drug concentration detector controller, and the output end of the temperature sensor 4 is electrically connected to the input end of the portable drug concentration detector controller. The temperature sensor 4 detects the temperature of the liquid in the cuvette 2 and sends the detected data to the controller of the portable drug concentration detector. Based on the measurement result, the controller controls the electric heating plate 3 to start, heating the liquid in the cuvette 2. The controller changes the current of the electric heating plate 3 to adjust the heating power of the electric heating plate 3, maintaining a constant temperature of the liquid in the cuvette 2.

[0022] The system also includes a limiting mechanism 5; the limiting mechanism 5 includes a slot frame 51 and limiting plates 52. The slot frame 51 is threadedly connected to the inside of the mounting shell 1. The cuvette 2 is located inside the slot frame 51, which rotates at a fixed angle. The left and right ends of the slot frame 51 are horizontally slidably connected to the limiting plates 52, which are installed in conjunction with the cuvette 2. The heating plate 3 and the temperature sensor 4 are respectively disposed on the opposite inner sides of the two limiting plates 52. When the cuvette 2 is inserted into the slot frame 51, the cuvette 2 is clamped and limited by the relative movement of the two limiting plates 52. The limiting mechanism 5 also includes a turntable 53 and an external threaded ring 54. The turntable 53 is disposed at the upper end of the slot frame 51. The lower surface of the turntable 53 is provided with an external threaded ring 54, which is connected to the threaded upper end of the inner arc surface of the mounting shell 1 to securely connect the slot frame 51 to the mounting shell 1. The limiting mechanism 5 also includes a top pressure plate 55 and a sliding column 56. The top pressure plate 55 is respectively disposed on the inner arc surface of the mounting shell 1, and the sliding column 56 is respectively disposed on the opposite outer sides of the two limiting plates 52. The sliding column 56 is horizontally slidably connected to the sliding hole on the side of the slot frame 51. The ball at the end of the sliding column 56 is fitted with the top pressure plate 55. When the inner arc surface of the top pressure plate 55 contacts the ball of the sliding column 56, the two limiting plates 52 move relative to each other by a certain distance under the pressure of the top pressure plate 55, thereby clamping and limiting the color cuvette 2. The positioning mechanism 5 also includes springs 57, which are respectively disposed between the ball of the sliding column 56 and the side of the slot frame 51. The springs 57 are movably sleeved on the outer arc surface of the sliding column 56. When the top pressure plate 55 is not in contact with the ball of the sliding column 56, the spring force of the springs 57 causes the ball of the sliding column 56 to contact the inner arc surface of the mounting shell 1, so that the distance between the two limiting plates 52 is at its maximum, providing space for the placement of the cuvette 2. The limiting mechanism 5 also includes rubber pads 58, which are respectively disposed on the opposite inner sides of the two limiting plates 52. The heating plate 3 and the temperature sensor 4 are both located in the groove inside the rubber pads 58. The rubber pads 58 are thermally conductive rubber pads to facilitate heat conduction. In the limiting state, The rubber pad 58 deforms, increasing the friction between the limiting plate 52 and the cuvette 2, making the cuvette 2 more securely positioned. The limiting mechanism 5 also includes an angle limiting plate 59, which is respectively set on the inner arc surface of the mounting shell 1. The angle limiting plate 59 is installed in conjunction with the rectangular slot frame 51. When both angle limiting plates 59 are in contact with the side of the slot frame 51, the angle limiting plates 59 block the slot frame 51 from continuing to rotate. At this time, the detection groove on the surface of the slot frame 51 is longitudinally aligned with the detection hole of the mounting shell 1, providing space for the propagation of the detection light of the drug concentration detector. The outer edge of the upper surface of the turntable 53 is provided with cylinders 6, which facilitates the rotation of the turntable 53 by personnel.

[0023] The working principle of this utility model is as follows:

[0024] During the pharmacokinetic experiment, the entire device is installed inside a portable drug concentration detector. At this time, the top pressure plate 55 and the top ball of the sliding column 56 are not in contact. Under the elastic force of the spring 57, the top ball of the sliding column 56 contacts the inner arc surface of the mounting shell 1, maximizing the distance between the two limiting plates 52 to provide space for the cuvette 2. Then, the cuvette 2 containing the drug solution is inserted into the slot holder 51. The cylinder 6 rotates the turntable 53, which is connected to the threaded upper end of the inner arc surface of the mounting shell 1 through the external threaded ring 54, causing the slot holder 51 to rotate and move downward within the mounting shell 1. When the slot holder 51 rotates 90 degrees, the angle limiting plate 59 contacts the side of the slot holder 51, restricting the further rotation of the slot holder 51. At this time, the detection groove on the surface of the slot holder 51 and the mounting shell... The detection holes of 1 coincide longitudinally, and the inner arc surface of the top pressure plate 55 contacts the ball of the sliding column 56. Under the pressure of the top pressure plate 55, the two limiting plates 52 move relative to each other by a certain distance, clamping and restricting the cuvette 2. The rubber pad 58 deforms, increasing the friction between the limiting plate 52 and the cuvette 2, and quickly and firmly inserting the cuvette 2 into the drug concentration detector, reducing the probability of the cuvette 2 falling off during the movement of the portable drug concentration detector, and improving the efficiency of the pharmacokinetic experiment. During the detection process, the temperature sensor 4 detects the temperature of the liquid in the cuvette 2 and sends the detection data to the controller of the portable drug concentration detector. Based on the measurement results, the controller controls the heating plate 3 to start, heating the liquid in the cuvette 2 and maintaining a constant temperature of the liquid in the cuvette 2.

[0025] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A constant-temperature cuvette module for a portable drug concentration detector, comprising a mounting shell (1), wherein a cuvette (2) is placed inside the mounting shell (1), and a heating plate (3) and a temperature sensor (4) are respectively provided inside the mounting shell (1), characterized in that: It also includes a limiting mechanism (5); The limiting mechanism (5) includes a slot frame (51) and a limiting plate (52). The slot frame (51) is threaded to the inside of the mounting shell (1). The cuvette (2) is located inside the slot frame (51) which rotates at a fixed angle. The left and right ends of the slot frame (51) are horizontally slidably connected to the limiting plate (52). The limiting plate (52) is installed in conjunction with the cuvette (2). The heating plate (3) and the temperature sensor (4) are respectively set on the opposite inner sides of the two limiting plates (52).

2. The isothermal cuvette module of a portable drug concentration detector according to claim 1, characterized in that: The limiting mechanism (5) also includes a turntable (53) and an external threaded ring (54). The turntable (53) is located at the upper end of the slot frame (51). The lower surface of the turntable (53) is provided with an external threaded ring (54). The external threaded ring (54) is connected to the threaded thread at the upper end of the inner arc surface of the mounting shell (1).

3. The constant temperature cuvette module of a portable drug concentration detector according to claim 1, wherein: The limiting mechanism (5) further includes a top pressure plate (55) and a sliding column (56). The top pressure plate (55) is respectively disposed on the inner arc surface of the mounting shell (1), and the sliding column (56) is respectively disposed on the opposite outer sides of the two limiting plates (52). The sliding column (56) is horizontally slidably connected to the sliding hole on the side of the slot frame (51), and the top ball at the end of the sliding column (56) is fitted with the top pressure plate (55).

4. The thermostated cuvette module of a portable drug concentration detector according to claim 3, characterized in that: The limiting mechanism (5) also includes springs (57), which are respectively disposed between the top ball of the sliding column (56) and the side of the slot frame (51), and the springs (57) are respectively movably sleeved on the outer arc surface of the sliding column (56).

5. The constant temperature cuvette module for a portable drug concentration tester of claim 1, wherein: The limiting mechanism (5) also includes a rubber pad (58), which is respectively disposed on the opposite inner sides of the two limiting plates (52). The heating plate (3) and the temperature sensor (4) are both located in the groove inside the rubber pad (58).

6. The constant temperature cuvette module for a portable drug concentration tester of claim 1, wherein: The limiting mechanism (5) also includes an angle limiting plate (59), which is respectively disposed on the inner arc surface of the mounting shell (1). The angle limiting plate (59) is installed in conjunction with the rectangular slot frame (51).

7. The constant temperature cuvette module of a portable drug concentration detector according to claim 2, wherein: The upper surface of the turntable (53) is provided with cylinders (6) along its outer edge.

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