Automatic dosing device

Abstract

The utility model discloses an automatic medicine feeding device, and belongs to the technical field of nuclide medicine injection. The device is provided with a mounting platform, and the mounting platform is provided with a liquid medicine bottle which stores medicine and flushing liquid; a reaction tube is placed in the concentration detector, the liquid medicine bottle is connected with the reaction tube through a liquid inlet pipeline, the external flushing liquid tank is connected with the reaction tube through a liquid inlet pipeline, and the concentration detector is used for detecting the concentration of medicine in the reaction tube; the waste liquid bag is connected with the reaction tube, the reaction tube is provided with a liquid outlet pipeline, and the liquid outlet pipeline is provided with at least two branches which are used for being connected with the injector and the waste liquid bag respectively. The automatic dosing device has three processes of flushing, bubble discharging and injection, and the three processes can be automatically carried out without manual contact with the medicine, so that the problem of potential safety hazards of medical staff is solved, the concentration of medicine configuration can be ensured to be more accurate through the arrangement of the concentration detector, the accuracy of injection dosage can be ensured through automatic injection, and the working efficiency is improved. And a good treatment effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of radionuclide drug injection, and specifically relates to an automatic drug delivery device and an automatic drug delivery method. Background Art

[0002] With the development of radioactive medicine, radionuclide drugs such as iodine 131, F18, and technetium 99 are also more widely used in the medical field. At present, the injection of such radionuclide drugs is performed manually by medical staff. However, since radionuclide drugs are radioactive, the clinical dose faces the characteristics of small volume, high radioactive concentration, and natural attenuation. Medical staff should try to reduce or avoid contact with radioactive drugs during the diagnosis and treatment process, and ensure that the concentration and dose of the drug configuration are more accurate. Utility Model Content

[0003] The utility model aims at the above problems existing in the prior art and proposes an automatic drug delivery device and an automatic drug delivery method which can prevent medical personnel from contacting radioactive drugs during diagnosis and treatment.

[0004] The utility model can be realized through the following technical solutions:

[0005] An automatic drug delivery device, comprising a mounting platform, on which is provided:

[0006] A medicine bottle storing medicine and flushing solution;

[0007] A concentration detector, in which a reaction tube is placed, the drug solution bottle and the reaction tube, and the external flushing liquid tank and the reaction tube are connected via liquid inlet pipelines, respectively, and the concentration detector is used to detect the drug concentration in the reaction tube;

[0008] A waste liquid bag is connected to the reaction tube, wherein the reaction tube has a liquid outlet pipeline, and the liquid outlet pipeline has at least two branches and is respectively used to connect to a syringe and the waste liquid bag.

[0009] As a further improvement of the utility model, the medicine liquid bottle is connected to a first pump body, the flushing liquid tank is connected to a second pump body, and the medicine liquid bottle and the flushing liquid tank are connected to the reaction tube through the first pump body and the second pump body respectively.

[0010] As a further improvement of the utility model, the liquid inlet pipeline is configured as a three-way pipeline and includes a first liquid inlet branch, a second liquid inlet branch and a liquid inlet main pipeline, wherein:

[0011] The first pump body is connected to the liquid inlet main channel through the first liquid inlet branch channel;

[0012] The second pump body is connected to the liquid inlet main line through the second liquid inlet branch line;

[0013] The liquid inlet main channel is connected to the reaction tube.

[0014] As a further improvement of the utility model, the liquid outlet pipeline is configured as a three-way pipeline and includes a liquid outlet main pipeline, a first liquid outlet branch and a second liquid outlet branch, wherein:

[0015] The solution in the reaction tube flows out through the main liquid outlet;

[0016] The first liquid outlet branch is connected to the waste liquid bag;

[0017] The second liquid outlet branch is used to be connected to a syringe.

[0018] As a further improvement of the utility model, it further includes a first valve and a second valve, wherein the first liquid outlet branch is connected to the waste liquid bag through the first valve, and the second liquid outlet branch is connected to the syringe through the second valve.

[0019] As a further improvement of the utility model, it further comprises a bubble detector, and the second liquid outlet branch passes through the bubble detector.

[0020] As a further improvement of the utility model, it further comprises a shell and a top cover, wherein the mounting platform is arranged on the shell, and one side of the top cover is hinged to the shell, wherein a radiation protection layer is arranged inside the top cover.

[0021] As a further improvement of the present invention, a connecting structure is further provided between the shell and the top cover, and the connecting structure comprises:

[0022] A lifting rod, which can be lifted up and down and is arranged on the mounting platform;

[0023] A coupling, which is hinged to the top end of the lifting rod;

[0024] A slider mounted on the coupling;

[0025] A linear guide rail is connected with the slider and is fixedly connected with the inner wall of the top cover. As the top cover is opened and closed, the lifting rod is lifted up and down, and the linear guide rail moves along the slider.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] 1. The three processes of flushing, evacuating bubbles and injection can be performed automatically without human contact, thus solving the potential safety hazard of medical staff. In addition, the concentration of drug configuration can be ensured to be more accurate through the setting of concentration detector;

[0028] 2. Automatic injection can ensure the accuracy of injection dosage, thereby ensuring good treatment effect;

[0029] 3. The second liquid outlet branch passes through the bubble detector. During the bubble exhaust stage, the flushing liquid continuously flows through the bubble detector along the second liquid outlet branch until the bubble detector detects no bubbles. The bubble exhaust action is completed to ensure that no bubbles remain in the drug delivery pipeline, thereby ensuring the personal safety of the patient;

[0030] 4. There is an anti-radiation layer inside the top cover. During the flushing, bubble removal and injection process, the top cover is always in a closed state. Medical staff control it through the operation panel on the shell. The setting of the anti-radiation layer inside the top cover ensures that medical staff will not be affected by the radiation of radionuclide drugs and ensure their health;

[0031] 5. As the top cover opens and closes, the lifting rod moves up and down. At the same time, the linear guide moves along the slider, and the slider swings back and forth through the coupling, thereby ensuring that the top cover can be opened and closed smoothly. It is through the cooperation between the linear guide and the slider that the top cover is more reliable after closing and will not be easily opened accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the automatic drug delivery device of the utility model after removing the top cover;

[0033] Figure 2 It is a schematic diagram of the infusion route of the utility model;

[0034] Figure 3 It is a structural schematic diagram of the automatic drug delivery device of the utility model.

[0035] In the figure, 100, mounting platform; 110, medicine bottle; 111, first pump body; 112, medicine bottle lifting rod; 113, connecting rod; 114, medicine bottle inserting rod; 120, flushing liquid tank; 121, second pump body; 130, concentration detector; 131, reaction tube; 140, waste liquid bag; 150, liquid inlet main line; 151, first liquid inlet branch; 152, second liquid inlet branch; 160, liquid outlet main line; 161, first liquid outlet branch; 162, second liquid outlet branch; 170, first valve; 180, second valve; 190, bubble detector; 200, housing; 210, top cover; 220, connecting structure; 221, lifting rod; 222, coupling; 223, slider; 224, linear guide. DETAILED DESCRIPTION

[0036] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0037] like Figure 1-3 As shown, the utility model provides an automatic drug delivery device, which has a mounting platform 100, and the mounting platform 100 is provided with:

[0038] The medicine bottle 110 and the flushing liquid tank 120 store medicine and flushing liquid respectively. The medicine is mainly for radionuclide medicine, such as technetium 99, and the flushing liquid is preferably saline. Figure 1 The flushing liquid tank 120 is not shown in the figure. The flushing liquid tank 120 can be set on the mounting platform 100 according to actual needs, or can be placed outside the drug delivery device, and the flushing liquid can also be transported through a pipeline;

[0039] A concentration detector 130, in which a reaction tube 131 is placed, the drug solution bottle 110 and the reaction tube 131, and the flushing liquid tank 120 and the reaction tube 131 are connected via liquid inlet pipelines, respectively, and the concentration detector 130 is used to detect the drug concentration in the reaction tube 131;

[0040] The waste liquid bag 140 is connected to the reaction tube 131 , wherein the reaction tube 131 has a liquid outlet pipeline, and the liquid outlet pipeline has at least two branches respectively used to connect to the syringe and the waste liquid bag 140 .

[0041] Specifically, before injection, the inlet and outlet pipes need to be flushed with a flushing liquid, and the bubbles in the pipes need to be discharged after flushing. After the flushing and bubble discharging actions are completed, the drug and the flushing liquid are mixed in the reaction tube 131, and the drug is diluted to a desired preset range. Then, the mixed drug can be discharged outward through the outlet pipe and the injection work can be performed;

[0042] Among them, the three processes of flushing, evacuating bubbles and injection can be performed automatically without human contact, thereby solving the potential safety hazard problem of medical staff. In addition, through the setting of the concentration detector 130, the concentration of the drug configuration can be ensured to be more accurate. At the same time, automatic injection can also ensure the accuracy of the injection dosage, thereby ensuring a good treatment effect.

[0043] Preferably, the medicine bottle 110 is connected to the first pump body 111, and the flushing liquid tank 120 is connected to the second pump body 121. The medicine bottle 110 and the flushing liquid tank 120 are connected to the reaction tube 131 through the first pump body 111 and the second pump body 121 respectively. During the flushing, bubble removal and injection process, medical staff only need to control the opening and closing of the first pump body 111 and the second pump body 121 through the control interface without contacting the medicine.

[0044] Preferably, the liquid inlet pipeline is configured as a three-way pipeline and includes a first liquid inlet branch 151, a second liquid inlet branch 152 and a liquid inlet main pipeline 150, wherein:

[0045] The first pump body 111 is connected to the liquid inlet main channel 150 through the first liquid inlet branch channel 151;

[0046] The second pump body 121 is connected to the liquid inlet main path 150 through the second liquid inlet branch 152;

[0047] The liquid inlet main channel 150 is connected to the reaction tube 131 .

[0048] That is to say, in this embodiment, the first liquid inlet branch 151 and the second liquid inlet branch 152 are arranged in parallel, and the drug and the flushing liquid finally enter the reaction tube 131 through the liquid inlet main line 150, thereby ensuring that the drug is discharged between the reaction tubes 131. The liquid inlet main line 150 can complete the flushing with the flushing liquid to avoid contamination of the drug.

[0049] Preferably, the liquid outlet pipeline is configured as a three-way pipeline and includes a liquid outlet main pipeline 160, a first liquid outlet branch 161 and a second liquid outlet branch 162, wherein:

[0050] The solution in the reaction tube 131 flows out through the liquid outlet 160;

[0051] The first liquid outlet branch 161 is connected to the waste liquid bag 140;

[0052] The second liquid outlet branch 162 is used to connect to a syringe.

[0053] Similarly, in this embodiment, the first liquid outlet branch 161 and the second liquid outlet branch 162 are arranged in parallel. During the flushing stage, the flushing liquid in the reaction tube 131 can flow into the waste liquid bag 140 through the first liquid outlet branch 161. During the injection stage, the medicine in the reaction tube 131 can be injected outward through the second liquid outlet branch 162.

[0054] In order to realize the three actions of flushing, evacuating bubbles and injecting, a first valve 170 and a second valve 180 are provided. The first liquid outlet branch 161 is connected to the waste liquid bag 140 through the first valve 170, and the second liquid outlet branch 162 is connected to the syringe through the second valve 180.

[0055] Specifically, in the flushing stage, the second valve 180 is closed, the first valve 170 is opened, and the flushing liquid in the reaction tube 131 can only flow into the waste liquid bag 140 through the first liquid outlet branch 161. At this time, the flushing liquid can flush the second liquid inlet branch 152, the liquid inlet main channel 150, the liquid outlet main channel 160, and the first liquid outlet branch 161;

[0056] Then, in the bubble discharge stage, the first valve 170 is closed and the second valve 180 is opened. During this process, the flushing liquid is continuously output through the second pump body 121 to discharge the bubbles in the second liquid inlet branch 152, the liquid inlet main channel 150, the liquid outlet main channel 160, and the second liquid outlet branch 162.

[0057] Finally, when there are no bubbles in the drug flow pipeline, the drug is discharged into the reaction tube 131 through the first pump body 111, and the flushing liquid is continuously discharged into the reaction tube 131 for use as a diluent until the concentration detector 130 detects that the drug concentration in the reaction tube 131 meets the required standard. The mixed drug solution is then discharged outward through the second valve 180 and the injection is completed.

[0058] Preferably, a bubble detector 190 is also included, and the second liquid outlet branch 162 passes through the bubble detector 190. In the bubble exhaust stage, the flushing liquid continuously flows through the bubble detector 190 along the second liquid outlet branch 162 until the bubble detector 190 detects no bubbles, and the bubble exhaust action is completed.

[0059] Preferably, it also includes an outer shell 200 and a top cover 210, the mounting platform 100 is arranged on the outer shell 200, and one side of the top cover 210 is hinged to the outer shell 200, wherein a radiation protection layer is provided inside the top cover 210. It should be noted here that during the flushing, bubbling and injection processes of the drug delivery device in this embodiment, the top cover 210 is always in a closed state, and the medical staff controls it through the operation panel on the outer shell 200. By setting the radiation protection layer inside the top cover 210, it is ensured that the medical staff will not be affected by the radiation of the radionuclide drugs, thereby ensuring their health.

[0060] Furthermore, in order to better ensure that the top cover 210 can completely block radiation, it is necessary to ensure the reliability of the top cover 210 after closing. Therefore, a corresponding connection structure 220 is provided between the housing 200 and the top cover 210, wherein the connection structure 220 includes:

[0061] A lifting rod 221, which can be lifted up and down and is arranged on the installation platform 100;

[0062] A coupling 222, which is hinged to the top end of the lifting rod 221;

[0063] A slider 223 mounted on the coupling 222;

[0064] The linear guide rail 224 is connected with the slider 223 , and the linear guide rail 224 is connected and fixed to the inner wall of the top cover 210 .

[0065] Specifically, as the top cover 210 opens and closes, the lifting rod 221 rises and falls, and at the same time, the linear guide rail 224 moves along the slider 223, and the slider 223 swings back and forth through the coupling 222, thereby ensuring that the top cover 210 can be opened and closed smoothly. It is through the cooperation between the linear guide rail 224 and the slider 223 that the top cover 210 is more reliable after closing and will not be easily opened accidentally.

[0066] In addition, in order to improve the placement stability of the medicine bottle 110, a clamping mechanism is also provided on the mounting platform 100, and the clamping mechanism includes a medicine bottle lifting rod 112, a connecting rod 113 and a medicine bottle insertion rod 114, wherein the medicine bottle lifting rod 112 can be raised and lowered to adjust the height, and the medicine bottle insertion rod 114 is installed on the medicine bottle lifting rod 112 through the connecting rod, and the medicine bottle 110 is fixed by the medicine bottle insertion rod 114.

[0067] Based on the above automatic drug delivery device, the specific drug delivery steps are as follows:

[0068] S1, pipeline flushing: the first pump body 111 and the second valve 180 are closed, the first valve 170 is opened, and the flushing liquid is discharged into the reaction tube 131 along the second liquid inlet branch 152 and the liquid inlet main channel 150 through the second pump body 121, and then the flushing liquid in the reaction tube 131 flows into the waste liquid bag 140 through the liquid outlet main channel 160 and the first liquid outlet branch 161;

[0069] S2, pipeline bubble discharge: the first pump body 111 and the first valve 170 are closed, the second valve 180 is opened, and the second pump body 121 continues to discharge the flushing liquid into the reaction tube 131 along the second liquid inlet branch 152 and the liquid inlet main path 150, and then the flushing liquid in the reaction tube 131 is discharged to the outside through the liquid outlet main path 160 and the second liquid outlet branch 162;

[0070] S3, drug concentration detection: the first valve 170 and the second valve 180 are closed, the first pump body 111 is opened, and the drug enters the reaction tube 131 along the first liquid inlet branch 151 and the liquid inlet main path 150, and at the same time the second pump body 121 discharges the flushing liquid into the reaction tube 131 to mix and dilute with the drug until the concentration detector 130 detects that the drug in the reaction tube 131 is diluted to a preset range;

[0071] S4, drug injection: the first valve 170 is closed, the second valve 180 is opened, and the drug in the reaction tube 131 is discharged outward through the main liquid outlet 160, the second liquid outlet branch 162 and the syringe to perform an injection action.

[0072] Among them, step S1 can flush the second liquid inlet branch 152, the liquid inlet main channel 150, the reaction tube 131, and the liquid outlet main channel 160, and step S2, while removing bubbles from the second liquid inlet branch 152, the liquid inlet main channel 150, the liquid outlet main channel 160, and the second liquid outlet branch 162, also completes the flushing of the second liquid outlet branch 162 that was not flushed in step S1, thereby ensuring that the pipelines through which the subsequent drug injection flows have completed the flushing work.

[0073] Preferably, between step S2 and step S3, the following steps are also included:

[0074] S21, bubble detection: the bubble detector 190 continuously detects whether there are bubbles in the second liquid outlet branch 162, if so, continue with step S2, if not, proceed to step S3.

[0075] Through the setting of step S21, it is ensured that bubbles are exhausted from the pipelines through which the drug flows during injection, thereby ensuring the safety of the injection.

[0076] The technical means disclosed in the scheme of the utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above is a specific implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

[0077] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0078] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An automatic drug delivery device having a mounting platform, characterized in that: The installation platform is provided with: A liquid medicine bottle storing medicine; A concentration detector, in which a reaction tube is placed, the drug solution bottle and the reaction tube, and the external flushing liquid tank and the reaction tube are connected via liquid inlet pipelines, respectively, and the concentration detector is used to detect the drug concentration in the reaction tube; A waste liquid bag is connected to the reaction tube, wherein the reaction tube has a liquid outlet pipeline, and the liquid outlet pipeline has at least two branches and is respectively used to connect to a syringe and the waste liquid bag.

2. An automatic drug delivery device according to claim 1, characterized in that: The medicine liquid bottle is connected to a first pump body, the flushing liquid tank is connected to a second pump body, and the medicine liquid bottle and the flushing liquid tank are connected to the reaction tube through the first pump body and the second pump body respectively.

3. An automatic drug delivery device according to claim 2, characterized in that: The liquid inlet pipeline is configured as a three-way pipeline and includes a first liquid inlet branch, a second liquid inlet branch and a liquid inlet main pipeline, wherein: The first pump body is connected to the liquid inlet main channel through the first liquid inlet branch channel; The second pump body is connected to the liquid inlet main line through the second liquid inlet branch line; The liquid inlet main channel is connected to the reaction tube.

4. An automatic drug delivery device according to claim 2, characterized in that: The liquid outlet pipeline is configured as a three-way pipeline and includes a liquid outlet main pipeline, a first liquid outlet branch pipeline and a second liquid outlet branch pipeline, wherein: The solution in the reaction tube flows out through the main liquid outlet; The first liquid outlet branch is connected to the waste liquid bag; The second liquid outlet branch is used to be connected to a syringe.

5. An automatic drug delivery device according to claim 4, characterized in that: It also includes a first valve and a second valve, wherein the first liquid outlet branch is connected to the waste liquid bag through the first valve, and the second liquid outlet branch is connected to the syringe through the second valve.

6. An automatic drug delivery device according to claim 5, characterized in that: It also includes a bubble detector, and the second liquid outlet branch passes through the bubble detector.

7. An automatic drug delivery device according to claim 1, characterized in that: It also includes an outer shell and a top cover, the mounting platform is arranged on the outer shell, one side of the top cover is hinged to the outer shell, and a radiation protection layer is arranged inside the top cover.

8. An automatic drug delivery device according to claim 7, characterized in that: A connecting structure is also provided between the shell and the top cover, and the connecting structure comprises: A lifting rod, which can be lifted up and down and is arranged on the mounting platform; A coupling, which is hinged to the top end of the lifting rod; A slider mounted on the coupling; A linear guide rail is connected with the slider and is fixedly connected with the inner wall of the top cover. As the top cover is opened and closed, the lifting rod is lifted up and down, and the linear guide rail moves along the slider.

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