Quantitative liquid medicine injection device

Abstract

The utility model discloses a liquid medicine quantitative injection device which comprises a supporting plate, a first supporting plate and a second supporting plate are fixed to the outer walls of the two sides of the supporting plate respectively, a first electric sliding rail is fixed to the outer wall of the top of the first supporting plate, a guide plate is fixed to the outer wall of the top of the second supporting plate, and a second electric sliding rail is slidably connected to the inner wall of the first electric sliding rail. A supporting frame is fixed to the outer wall of the top of the movable block, an electric push rod is fixed to the outer wall of the supporting frame, a push rod is fixed to an output shaft of the electric push rod, and a needle cylinder is fixed to the outer wall of the movable block. According to the utility model, the liquid medicine stored in the needle cylinder is sprayed into the culture dish by the piston through the needle heads which are uniformly distributed at the bottom of the needle cylinder, so that the liquid medicine is uniformly sprayed into cancer cell tissues placed in the culture dish, and the mixing efficiency of the liquid medicine and the cancer cell tissues is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection device technology, and in particular to a drug liquid quantitative injection device. Background Technology

[0002] When studying cancer cell tissues, it is usually necessary to inject a drug solution such as styraxone mixed with PD-L1 antibody into the cancer cell culture dish to observe the inhibitory effect of these antibodies on cancer cells. Therefore, a corresponding quantitative injection device is required to inject the drug solution such as styraxone mixed with PD-L1 antibody into the culture dish evenly.

[0003] A search revealed a Chinese patent application with patent number CN202180101461.6, which discloses a quantitative injection device, including an upper shell with a first cavity extending vertically. However, the above-mentioned technical solution has only one injection hole at the bottom of the injection device, so it cannot uniformly squeeze the drug solution into a culture dish with a large area. Therefore, it also has the problem of not being able to quickly mix the drug solution with the cancer cells in the culture dish. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quantitative injection device for pharmaceutical solutions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drug injection device includes a support plate. A first support plate and a second support plate are fixed to the outer walls of both sides of the support plate. A first electric slide rail is fixed to the top outer wall of the first support plate, and a guide plate is fixed to the top outer wall of the second support plate. A second electric slide rail is slidably connected to the inner wall of the first electric slide rail. One end of the second electric slide rail is slidably connected to the outer wall of the guide plate. A movable block is slidably connected to the outer wall of the second electric slide rail. A support frame is fixed to the top outer wall of the movable block. An electric push rod is fixed to the outer wall of the support frame. A push rod is fixed to the output shaft of the electric push rod. A syringe is fixed to the outer wall of the movable block. A piston is fixed to the bottom outer wall of the push rod. The piston is slidably connected to the inner wall of the syringe. Multiple needles are provided on the bottom outer wall of the syringe.

[0007] As a further improvement of this utility model: a storage box and a petri dish are placed on the top outer wall of the support plate.

[0008] As a further embodiment of this utility model: a control panel is fixed to the top outer wall of the support plate, and the second electric slide rail and the first electric slide rail are electrically connected to the control panel respectively.

[0009] As a further improvement of this utility model: a connecting plate is fixed to the top outer wall of the guide plate and the first electric slide rail, and a reinforcing rod is fixed to one side outer wall of the second electric slide rail.

[0010] As a further improvement of this utility model, an arc-shaped stop is fixed to the top outer wall of the support plate.

[0011] As a further improvement of this utility model, a friction pad is provided on the bottom outer wall of the support plate.

[0012] As a further improvement of this utility model: a set of L-shaped plates are fixed to the top outer wall of the support plate, and a shielding cover is fixed to the outer wall of the L-shaped plates.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The second electric slide rail moves the syringe to the top of the culture dish. Then, the first electric slide rail moves the second electric slide rail downwards by a corresponding distance, so that the syringe moves to the top of the culture dish. Then, the electric push rod pushes the push rod downwards, so that the drug solution stored in the syringe is sprayed into the culture dish through multiple evenly distributed needles set at the bottom of the syringe via the piston. This ensures that the drug solution is evenly sprayed into the cancer cell tissue placed inside the culture dish, thereby improving the mixing efficiency of the drug solution and cancer cell tissue.

[0015] 2. The distance the electric push rod moves forward and backward can be controlled via the control panel, thereby controlling the amount of medicine inhaled and sprayed, and improving the accuracy of medicine injection.

[0016] 3. The shield can block and guide the liquid medicine sprayed outward through the needle at the bottom of the syringe, and at the same time support and limit the syringe when it moves downward, so as to prevent the syringe from completely entering the culture dish and damaging the cells, tissues and other liquids inside the culture dish. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a drug liquid quantitative injection device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of a culture dish structure for a drug solution quantitative injection device proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the syringe structure of a drug liquid quantitative injection device proposed in this utility model.

[0020] In the diagram: 1-Support plate, 2-Control panel, 3-Arc-shaped stop, 4-Cultural dish, 5-First support plate, 6-First electric slide rail, 7-Syringe, 8-Moving block, 9-Push rod, 10-Support frame, 11-Electric push rod, 12-Connecting plate, 13-Second electric slide rail, 14-Guide plate, 15-Reinforcing rod, 16-Storage box, 17-Second support plate, 18-Piston, 19-Shielding cover, 20-L-shaped plate, 21-Needle. Detailed Implementation

[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0022] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0023] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0024] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0025] Example 1

[0026] A drug solution metering injection device, such as Figure 1-3 As shown, the device includes a support plate 1. A first support plate 5 and a second support plate 17 are fixed to the outer walls of both sides of the support plate 1. A first electric slide rail 6 is fixed to the top outer wall of the first support plate 5. A guide plate 14 is fixed to the top outer wall of the second support plate 17. A second electric slide rail 13 is slidably connected to the inner wall of the first electric slide rail 6. One end of the second electric slide rail 13 is slidably connected to the outer wall of the guide plate 14. A movable block 8 is slidably connected to the outer wall of the second electric slide rail 13. A support frame 10 is fixed to the top outer wall of the movable block 8. An electric push rod 11 is fixed to the outer wall of the support frame 10. A push rod 9 is fixed to the output shaft of the electric push rod 11. A syringe 7 is fixed to the outer wall of the movable block 8. A piston 18 is fixed to the bottom outer wall of the push rod 9. The piston 18 is slidably connected to the inner wall of the syringe 7. Multiple needles 21 are provided on the bottom outer wall of the syringe 7.

[0027] A storage box 16 and a petri dish 4 are placed on the top outer wall of the support plate 1;

[0028] The control panel 2 is fixed to the top outer wall of the support plate 1, and the second electric slide rail 13 and the first electric slide rail 6 are electrically connected to the control panel 2 respectively.

[0029] Staff can pour the prepared and mixed solution of styraxone and PD-L1 antibody into the storage box 16 for temporary storage. Then, a culture dish 4 containing cancer cells is placed on top of the support plate 1. The control panel 2 then controls the second electric slide rail 13 to move the syringe 7 to the top of the storage box 16. Next, the control panel 2 controls the first electric slide rail 6 to move the second electric slide rail 13 downwards, allowing the bottom of the syringe 7 to insert into the storage box 16. Then, the electric push rod 11 moves the push rod 9 upwards, thereby drawing the drug solution from inside the storage box 16 into the syringe 7 through negative pressure. Finally, the control panel 2 controls the first electric slide rail 6 to move... The second electric slide rail 13 moves upward and resets, allowing the syringe 7 to leave the storage box 16. Then, the second electric slide rail 13 moves the syringe 7 to the top of the culture dish 4. Subsequently, the first electric slide rail 6 moves the second electric slide rail 13 downward a corresponding distance, allowing the syringe 7 to move to the top of the culture dish 4. Then, the electric push rod 11 pushes the push rod 9 downward, thereby spraying the drug solution stored inside the syringe 7 into the culture dish 4 through the piston 18 via multiple evenly distributed needles 21 at the bottom of the syringe 7. This evenly sprays the drug solution into the cancer cell tissue placed inside the culture dish 4, improving the mixing efficiency of the drug solution and cancer cell tissue.

[0030] like Figure 1 As shown, a connecting plate 12 is fixed to the top outer wall of the guide plate 14 and the first electric slide rail 6, and a reinforcing rod 15 is fixed to one side outer wall of the second electric slide rail 13. The connecting plate 12 can improve the overall stability of the first electric slide rail 6 and the guide plate 14, while the reinforcing rod 15 can connect and reinforce the two second electric slide rails 13, improving the stability of the second electric slide rails 13 when moving up and down.

[0031] like Figure 1 As shown, an arc-shaped stop 3 is fixed on the top outer wall of the support plate 1; the arc-shaped stop 3 can limit and support the entire culture dish 4 placed on the top of the support plate 1.

[0032] like Figure 1 As shown, a friction pad is provided on the bottom outer wall of the support plate 1.

[0033] Working principle: The operator pours the prepared solution of styraxone mixed with PD-L1 antibody and other drugs into the storage box 16 for temporary storage. Then, a culture dish 4 containing cancer cells is placed on top of the support plate 1. The control panel 2 then controls the second electric slide rail 13 to move the syringe 7 to the top of the storage box 16. Next, the first electric slide rail 6 moves the second electric slide rail 13 downwards, allowing the bottom of the syringe 7 to insert into the storage box 16. Then, the electric push rod 11 moves the push rod 9 upwards, thereby drawing the drug solution from the storage box 16 into the syringe 7 through negative pressure. Finally, the control panel 2... The first electric slide rail 6 drives the second electric slide rail 13 to move upward and reset, thereby allowing the syringe 7 to leave the storage box 16. Then, the second electric slide rail 13 drives the syringe 7 to the top of the culture dish 4. Then, the first electric slide rail 6 drives the second electric slide rail 13 to move downward a corresponding distance, thereby allowing the syringe 7 to move to the top of the culture dish 4. Then, the electric push rod 11 pushes the push rod 9 downward, thereby spraying the drug solution stored inside the syringe 7 into the culture dish 4 through the piston 18 via multiple evenly distributed needles 21 at the bottom of the syringe 7, thereby evenly spraying the drug solution into the cancer cell tissue placed inside the culture dish 4.

[0034] Example 2

[0035] A drug solution metering injection device, such as Figure 1-2 As shown, this embodiment makes the following improvements based on embodiment 1: A set of L-shaped plates 20 are fixed to the top outer wall of the support plate 1, and a shielding cover 19 is fixed to the outer wall of the L-shaped plates 20; the shielding cover 19 can shield and guide the liquid medicine sprayed outward through the needle 21 at the bottom of the syringe 7, and at the same time support and limit the syringe 7 when it moves downward, so as to prevent the syringe 7 from completely entering the culture dish 4 and causing damage to the cells, tissues and other liquids inside the culture dish 4.

[0036] Working principle: The shield 19 can shield and guide the liquid medicine sprayed outward through the needle 21 at the bottom of the syringe 7, and at the same time support and limit the syringe 7 when it moves downward.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drug liquid metering injection device, comprising a support plate (1), characterized in that, The support plate (1) has a set of first support plate (5) and second support plate (17) fixed on the outer walls of both sides respectively. The first support plate (5) has a first electric slide rail (6) fixed on the top outer wall. The second support plate (17) has a guide plate (14) fixed on the top outer wall. The first electric slide rail (6) has a second electric slide rail (13) slidably connected to the inner wall. One end of the second electric slide rail (13) is slidably connected to the outer wall of the guide plate (14). The second electric slide rail (13) has a movable block (8) slidably connected to the outer wall. The movable block (8) has a support frame (10) fixed on the top outer wall. The support frame (10) has an electric push rod (11) fixed on the outer wall. The output shaft of the electric push rod (11) has a push rod (9) fixed on the output shaft. The movable block (8) has a syringe (7) fixed on the outer wall. The push rod (9) has a piston (18) fixed on the bottom outer wall. The piston (18) is slidably connected to the inner wall of the syringe (7). The bottom outer wall of the syringe (7) is provided with multiple needles (21).

2. The drug solution metering injection device according to claim 1, characterized in that, The top outer wall of the support plate (1) is provided with a storage box (16) and a petri dish (4).

3. The drug solution metering injection device according to claim 2, characterized in that, The support plate (1) has a control panel (2) fixed on its top outer wall. The second electric slide rail (13) and the first electric slide rail (6) are electrically connected to the control panel (2).

4. The drug solution metering injection device according to claim 1, characterized in that, A connecting plate (12) is fixed to the top outer wall of the guide plate (14) and the first electric slide rail (6), and a reinforcing rod (15) is fixed to one side outer wall of the second electric slide rail (13).

5. A drug solution metering injection device according to claim 3, characterized in that, An arc-shaped stop (3) is fixed to the top outer wall of the support plate (1).

6. The drug solution metering injection device according to claim 5, characterized in that, The bottom outer wall of the support plate (1) is provided with a friction pad.

7. A drug solution metering injection device according to claim 6, characterized in that, A set of L-shaped plates (20) are fixed to the top outer wall of the support plate (1), and a shield (19) is fixed to the outer wall of the L-shaped plates (20).

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