Slow-release medicine loader and loading system

Abstract

The utility model provides a slow-release medicine loader which comprises a loading assembly and a medicine feeding assembly, the loading assembly is used for loading an injector, and the medicine feeding assembly is used for loading slow-release medicine into a needle tube of the injector. The medicine feeding assembly and the loading assembly are in relative sliding fit in the longitudinal direction, so that the loading assembly and the medicine feeding assembly can be far away from each other or close to each other; after the injector is fixed on the carrying assembly, the medicine feeding assembly and the carrying assembly slide relatively to enable the injector to approach the medicine feeding assembly, and after the injector moves in place, slow-release medicine is loaded into the needle tube through the medicine feeding assembly; after the slow-release medicine is loaded, the medicine feeding assembly and the carrying assembly are far away from each other, and the injector is taken out of the carrying assembly; the utility model further provides a sustained-release medicine loading system, the sustained-release medicine loading system comprises the sustained-release medicine loader and the loading track, the sustained-release medicine loader further comprises a driving unit, and the driving unit can drive the loading assembly or the medicine feeding assembly to move along the loading track to load the sustained-release medicine.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a sustained-release drug loader and a loading system. Background Art

[0002] Currently, medication is the most common treatment for ophthalmic diseases. Typically, medications are administered in the form of eye drops, which are applied to the ocular surface. However, compliance with these medications is poor, and the vast majority of eye drops are excreted with tears, resulting in low drug utilization and poor therapeutic efficacy.

[0003] Therefore, with the development of technology, sustained-release drugs have been implanted into the desired part of the eye through delivery devices, such as the anterior chamber, posterior chamber, intraretinal, subretinal, and choroidal spaces. Due to the long-term effect of sustained-release drugs, sustained-release drugs are continuously released after being implanted in the ocular tissue, thereby reducing the frequency of frequent medication for patients. Patients do not need to frequently use eye drops or ointments, thereby improving the convenience of treatment and patient compliance.

[0004] Before using this type of delivery device, sustained-release drugs generally need to be pre-loaded in the delivery device and sealed in packaging and sold together with the delivery device (such as an injector). When using, the operator can use the delivery device to directly deliver the sustained-release drugs into the patient's eyes. However, existing sustained-release drugs are extremely inconvenient to load into the delivery device, with low loading efficiency and the loader easily scratched by the tip of the delivery device needle. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a sustained-release drug loader, including a carrier component, which can carry a sustained-release drug injector, and the sustained-release drug injector has a needle tube; a drug delivery component, which slides relative to the carrier component in the longitudinal direction, so that the carrier component and the drug delivery component can move away from or approach each other, and the drug delivery component is used to load sustained-release drugs into the needle tube, including a loading seat, which has a loading portion adjacent to the carrier component, and the loading portion is used to provide loading space for the sustained-release drugs and the needle tube; a pushing member, which slides with the loading seat in the longitudinal direction; a top screw, one end of the top screw is fixedly connected to the pushing member, and the other end of the top screw can act on the sustained-release drug to allow the pushing member to move along the longitudinal direction of the loading seat, and drive the top screw to push the sustained-release drug into the needle tube.

[0006] In some embodiments of the present application, the loading part has a limiting groove and a positioning hole, the limiting groove is used to limit the position of the needle tube, and the positioning hole is used to position the top screw, and the center axis of the top screw, the center axis of the positioning hole and the center axis of the needle tube are coaxial.

[0007] In some embodiments of the present application, the loading portion is provided with at least one transverse rib at intervals in the longitudinal direction, and the positioning hole passes through the transverse rib; preferably, a supporting positioning member is further provided between the loading portion and the carrier assembly, and the supporting positioning member has a positioning support hole, and the needle tube passes through the positioning support hole.

[0008] In some embodiments of the present application, the loading part has a limiting groove and a positioning groove, the limiting groove is used to limit the position of the needle tube, and the positioning groove is used to accommodate the sustained-release drug and position the top screw, and the central axis of the top screw is coaxial with the central axis of the needle tube.

[0009] In some embodiments of the present application, the loading seat has a limiting hole in the longitudinal direction, the limiting hole is adjacent to the carrier assembly, and is used to limit the needle tube. The central axis of the needle tube is coaxial with the central axis of the limiting hole, and the limiting hole is connected to the limiting groove in the longitudinal direction.

[0010] In some embodiments of the present application, the loading portion further has a drug delivery trough, which is perpendicular to the positioning slot and communicated with the positioning slot, and can accommodate the sustained-release drug; the drug delivery assembly also includes a lateral rod, which acts on the sustained-release drug and can push the sustained-release drug from the drug delivery trough into the positioning slot.

[0011] In some embodiments of the present application, the loading assembly includes a loading platform, which has a sliding cavity; the loading seat includes a loading base and a loading top seat, the loading top seat is arranged on the loading base, the loading part is located on the loading top seat, and the loading base slides with the sliding cavity; preferably, a loading cavity adapted for the sustained-release drug injector is also provided on the top of the loading platform, and the sustained-release drug injector can be accommodated and fixed in the loading cavity.

[0012] In some embodiments of the present application, the loading top seat has a mounting groove, and the loading part is replaceably fixed in the mounting groove.

[0013] The present application also provides a sustained-release drug loading system, comprising the sustained-release drug loader and a loading track as described above, wherein the sustained-release drug loader further comprises a driving unit, which can drive the carrier component or the drug delivery component to move along the loading track so that the carrier component and the drug delivery component are close to each other for loading the sustained-release drug or move away from each other after the sustained-release drug is loaded.

[0014] In some embodiments of the present application, the loading track includes at least a first loading track and a second loading track, and the sustained-release drug loader has at least two carrier components, each of which selectively passes through the first loading track or the second loading track so that at least two of the carrier components can alternately load the sustained-release drug.

[0015] The beneficial effects of the present application are as follows: the present invention provides a sustained-release drug loader, comprising a carrier assembly and a drug delivery assembly, wherein the carrier assembly is used to carry an injector, and the drug delivery assembly is used to load sustained-release drugs into the needle tube of the injector; the drug delivery assembly and the carrier assembly are relatively slidably matched in the longitudinal direction, so that the carrier assembly and the drug delivery assembly can move away from or approach each other; when the injector is fixed on the carrier assembly, the drug delivery assembly and the carrier assembly slide relative to each other so that the injector moves closer to the drug delivery assembly, and after the injector moves into place, the drug is delivered to the needle tube through the drug delivery assembly. Loading the sustained-release drug; after the sustained-release drug is loaded, the drug delivery component and the carrier component move away from each other, and the injector is removed from the carrier component. The sustained-release drug loader of the present application can quickly and conveniently pre-load the sustained-release drug into the injector, thereby improving the efficiency of production and processing; the present application also provides a sustained-release drug loading system, including a sustained-release drug loader and a loading track. The sustained-release drug loader also includes a drive unit, which can drive the carrier component or the drug delivery component to move along the loading track to load the sustained-release drug. The system can also realize fully automated loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0017] Figure 1A This is a three-dimensional view of an embodiment of the sustained-release drug loader of the present invention;

[0018] Figure 1B This is a perspective view of a loading assembly in one embodiment of the sustained-release drug loading device of the present invention;

[0019] Figure 1C This is a three-dimensional diagram of a medicine delivery assembly in one embodiment of the sustained-release medicine loader of the present invention;

[0020] Figure 1D This is a top view of an embodiment of the sustained-release drug loader of the present invention;

[0021] Figure 1E yes Figure 1D A partial enlarged schematic diagram;

[0022] Figure 1F This is a three-dimensional diagram of the loading portion of an embodiment of the sustained-release drug loading device of the present invention;

[0023] Figure 2A This is a perspective view of a drug delivery assembly in another embodiment of the sustained-release drug loader of the present invention;

[0024] Figure 2B This is a top view of another embodiment of the sustained-release drug loader of the present invention;

[0025] Figure 2C This is a perspective view of the loading portion of another embodiment of the sustained-release drug loading device of the present invention;

[0026] Figure 3A This is a perspective view of a drug delivery assembly in another embodiment of the sustained-release drug loader of the present invention;

[0027] Figure 3B This is a top view of another embodiment of the sustained-release drug loader of the present invention;

[0028] Figure 3C This is a perspective view of the loading portion of another embodiment of the sustained-release drug loading device of the present invention;

[0029] Figure 4A It is a schematic diagram of an embodiment of a loading system including a sustained-release drug loader of the present invention;

[0030] Figure 4B It is a schematic diagram of another embodiment of a loading system including the sustained-release drug loader of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other alternative implementations obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] This application provides a sustained-release drug loader 500, which is used in conjunction with a sustained-release drug bolus 100 and can preload a sustained-release drug 300 within the sustained-release drug bolus 100. It should be understood that the sustained-release drug 300 herein is solid, not liquid, and is generally in the form of a round, irregularly shaped sheet, rod, stick, or other shape. The following describes various embodiments of the sustained-release drug loader 500. The sustained-release drug loader 500 will be referred to as the "loader," and the sustained-release drug bolus 100 will be referred to as the "bolus."

[0033] like Figures 1A to 1FAs shown, as an embodiment of the loader 500, the loader 500 includes a carrier component 510 and a drug delivery component 520, wherein the carrier component 510 is used to carry the injector 100, and the drug delivery component 520 is used to load the sustained-release drug into the needle tube of the injector 100; the drug delivery component 520 and the carrier component 510 are relatively slidably matched in the longitudinal direction, so that the carrier component 510 and the drug delivery component 520 can move away from or approach each other; when the injector 100 is fixed on the carrier component 510, the drug delivery component 520 and the carrier component 510 slide relative to each other so that the injector 100 moves closer to the drug delivery component 520. After the injector 100 moves into place, the sustained-release drug is loaded into the needle tube 30 through the drug delivery component 520; after the sustained-release drug 300 is loaded, the drug delivery component 520 and the carrier component 510 move away from each other, and the injector 100 is removed from the carrier component 510.

[0034] like Figure 1B As shown, the loading assembly 510 includes a loading platform 511, and a loading cavity 5112 is provided on the top of the loading platform 511. The shape of the loading cavity 5112 is adapted to the syringe 100, so that the syringe 100 can be accommodated and fixed in the loading cavity 5112; the top of the loading platform 511 is also provided with a pick-up and placement groove 5113 and an avoidance groove 5114 connected to the loading cavity 5112. The function of the pick-up and placement groove 5113 is to facilitate manual or robotic arm to take and place the syringe 100, and the avoidance groove 5114 is to provide avoidance space for the limit pin in the syringe 100.

[0035] Furthermore, the loading platform 511 also has a sliding cavity 5111 , which is arranged at the center or bottom of the loading platform 511 along the longitudinal direction. The loading platform 511 is slidably matched with the medicine delivery component 520 through the sliding cavity 5111 .

[0036] like Figures 1C to 1F As shown, in this embodiment, the drug delivery assembly 520 includes a loading seat 521, a pushing member 522, and a top screw 523, wherein the loading seat 521 has a loading portion 5210 adjacent to the carrier assembly 510, and the loading portion 5210 is used to provide loading space for the sustained-release drug 300 and the syringe 30. When the loader 500 loads the sustained-release drug into the injector 100, the loading portion 5210 can limit the syringe 30 and align the sustained-release drug with the syringe 30; the pushing member 522 and the loading seat 521 slide in the longitudinal direction, one end of the top screw 523 is fixedly connected to the pushing member 522, and the other end of the top screw 523 can act on the sustained-release drug. When the pushing member 522 slides along the longitudinal direction of the loading seat 521 and pushes the sustained-release drug, the sustained-release drug can be pushed into the syringe.

[0037] In this embodiment, the loading part 5210 has a limiting groove 5211 and a positioning hole 5212. The limiting groove 5211 is used to limit the position of the needle tube 30, and the positioning hole 5212 is used to position the top screw 523. The center axis of the top screw 523, the center axis of the positioning hole 5212 and the center axis of the needle tube 30 are coaxial, thereby ensuring that the top screw 523 can push the sustained-release drug into the needle tube 30 smoothly and accurately.

[0038] like Figure 1E As shown, when pushing the sustained-release drug, the sustained-release drug is placed at the bevel of the needle tip of the needle tube 30 under a microscope, and then the pushing member 522 is moved to push the sustained-release drug into the needle tube 30 through the top screw 523. When the sustained-release drug is pushed into place, it is located on the inner side of the working hole 31 on the needle tube 30 (the side close to the handle of the injector 100), and then the limit plug is inserted into the working hole 31 on the needle tube 30 to prevent the sustained-release drug from falling out of the needle tube 30; then the object carrier component 510 and the drug delivery component 520 are moved away from each other, and the injector 100 is taken out.

[0039] like Figure 1F As shown, further, the loading portion 5210 is provided with at least one transverse rib 5213 at intervals in the longitudinal direction, and the positioning hole 5212 passes through the transverse rib 5213 .

[0040] like Figure 1C As shown, further, a supporting positioning member 530 is provided between the loading part 5210 and the loading assembly 510, and a positioning support hole 531 is provided on the supporting positioning member 530, and the needle tube 30 passes through the positioning support hole 531. In addition to supporting the needle tube 30, the positioning support hole 531 also serves to limit the needle tube 30, thereby preventing the needle tube 30 from moving and tilting, and preventing the oblique end of the needle tip from accurately entering the limiting groove 5211.

[0041] Further, such as Figure 1D As shown, the loading seat 521 includes a loading base 5217 and a loading top seat 5218. The longitudinal length of the loading base 5217 is greater than the longitudinal length of the loading top seat 5218. The loading top seat 5218 is arranged on the loading base 5217 and is detachably connected or integrally formed with the loading base 5217. The loading part 5210 is located on the loading top seat 5218, and the loading base 5217 is slidably matched with the sliding cavity 5111, so that the object carrying component 510 and the medicine delivery component 520 can slide relative to each other.

[0042] In this embodiment, a mounting groove 5219 is provided on the loading top seat 5218, and the loading part 5210 is replaceably fixed in the mounting groove 5219; in this way, different loading parts 5210 can be replaced in the mounting groove 5219 for different drug shapes and needle tube 30 structures of the injector 100, thereby improving the applicability of the loader 500, and the loading part 5210 will produce wear after long-term use, and setting it to be replaceable is also convenient for later maintenance and replacement; but in some other embodiments, for the convenience of processing, the loading part and the loading top seat can also be formed as one, and when different drugs need to be replaced, the drug delivery assembly 520 can be replaced as a whole.

[0043] like Figure 1C and 1D As shown, the loading top seat 5218 has a pushing guide portion so that the pushing member 522 can slide with the loading top seat 5218 in the longitudinal direction. The pushing guide portion can be as follows: Figure 1C The slide groove 5220 shown is connected to the installation groove 5219. In some other embodiments, the slide groove 5220 can also be replaced by a slideway, a slide rail, a sliding tube or other components with a guiding function.

[0044] Furthermore, in order to avoid limiting the moving range of the pushing member 522, the medicine delivery assembly 520 also includes a stop member 526, which is inserted horizontally into the slide groove to limit the movement of the pushing member 522; it can be seen that one end of the pushing member 522 is stopped by the stop member 526, and the other end is stopped by the loading part 5210. In the process of the pushing member 522 moving from the stop member 526 to the loading part 5210, the sustained-release medicine can be smoothly pushed to the inner side of the working hole 31 on the needle tube 30.

[0045] In other embodiments, Figures 2A to 2C As shown, the loading part 5210 has a limiting groove 5211 and a positioning groove 5214. The limiting groove 5211 is used to limit the position of the needle tube 30, and the positioning groove 5214 is used to accommodate the sustained-release medicine and position the top screw 523. Since the needle tube 30 has a certain wall thickness, the depth of the limiting groove 5211 is set to be slightly larger than the depth of the positioning groove 5214 to ensure that the central axis of the top screw 523 is coaxial with the central axis of the needle tube 30, so that the sustained-release medicine can be pushed into the needle tube 30 smoothly and accurately.

[0046] In this embodiment, the medicine delivery component 520 also includes a cover plate 525. The shape of the cover plate 525 is adapted to the loading portion 5210 and can cover the loading portion 5210. The bottom of the cover plate 525 is provided with a positioning protrusion 5251 adapted to the positioning groove 5214. The positioning protrusion 5251 is inserted into the positioning groove 5214 to prevent the top screw 523 from flying out of the positioning groove 5214 during the process of pushing the sustained-release medicine.

[0047] In this embodiment, the loading seat 521 has a limiting hole 5215 in the longitudinal direction. The limiting hole 5215 is adjacent to the loading assembly 510 and is used to limit the needle tube 30. The central axis of the needle tube 30 is coaxial with the central axis of the limiting hole 5215. The limiting hole 5215 is connected to the limiting groove 5211 in the longitudinal direction.

[0048] In other embodiments, Figures 3A to 3C As shown, different from the above Figures 2A to 2C In the embodiment shown, the loading portion 5210 also has a drug delivery trough 5216, which is perpendicular to the positioning groove 5214 and communicated with the positioning groove 5214, and can accommodate the sustained-release drug 300; the drug delivery component 520 also includes a lateral rod 524, which acts on the sustained-release drug 300 and can push the sustained-release drug 300 from the drug delivery trough 5216 into the positioning groove 5214.

[0049] In this embodiment, multiple sustained-release drugs are arranged in the drug delivery groove 5216, and the lateral rod 524 pushes one sustained-release drug into the positioning groove 5214 each time. After completing the loading of the injector 100 once, the lateral rod 524 pushes another sustained-release drug into the positioning groove 5214 to load the next injector 100.

[0050] Furthermore, the medicine delivery component 520 also includes a lateral drive unit, and the lateral pushing unit acts on the lateral rod 524, which can provide thrust to the lateral rod 524 to automatically push the sustained-release medicine into the positioning groove 5214, thereby realizing automatic delivery of the sustained-release medicine before loading and pushing.

[0051] In some embodiments, in order to accurately identify whether the needle tube 30 has moved into position, the loader 500 also includes an in-position detection sensor arranged in the limit groove 5211. The in-position detection sensor detects whether the needle tip of the needle tube 30 has moved into position. If the needle tip of the needle tube 30 has moved into position, the sliding between the loading component 510 and the drug delivery component 520 stops, and at this time, the sustained-release drug can be loaded into the needle tube 30.

[0052] In some embodiments, after the injector 100 is loaded with sustained-release drugs, in order to detect whether there is sustained-release drugs in the syringe 30, a detection sensor is also installed on the side of the limit plug of the injector 100 (the side close to the handle of the injector after insertion). After the top screw 523 of the loader 500 pushes the sustained-release drugs, the limit plug is inserted to determine whether there is sustained-release drugs in the syringe 30 and whether the sustained-release drugs are located on the inner side of the working hole 31. If no sustained-release drugs are detected, the limit plug needs to be removed for reloading.

[0053] like Figures 4A-4BAs shown, on the other hand, the present application also provides a sustained-release drug loading system, which includes the aforementioned loader 500 and the loading track 600, and one of the carrier component 510 and the drug delivery component 520 has a power source, so that the carrier component 510 and the drug delivery component 520 can automatically approach or move away on the loading track 600.

[0054] In some embodiments, as Figure 4A As shown, the carrier component 510 has a power source as an example, wherein the carrier component 510 also includes a driving unit, which can drive the carrier component 510 to move along the loading track 600 to approach the drug delivery component 520 for loading the sustained-release drug or to move away from the drug delivery component 520 after the sustained-release drug is loaded.

[0055] In some embodiments, as Figure 4B As shown, the loading track 600 includes at least a first loading track 610 and a second loading track 620, and the loader 500 has at least two carrier components 510, each carrier component 510 selectively passes through the first loading track 610 or the second loading track 620, so that at least two carrier components 510 can be alternately loaded with sustained-release drugs, thereby improving the loading efficiency of the loader 500.

[0056] In some embodiments, the drug delivery component 520 also includes a longitudinal pushing mechanism, which acts on the pushing member 522. It can detect in the sustained-release drug loading system that the syringe needle 30 is in place and the sustained-release drug is in place, and provide a thrust to the pushing member 522 to automatically push the sustained-release drug. The placement of the sustained-release drug can be detected by a sensor installed on the side of the limit slot 5211 or by setting a probe on the loading seat 521 and detecting it through imaging.

[0057] In some embodiments, the carrier component 510 or the drug delivery component 520 of the loader 500 also has a locking part (not shown). When the carrier component 510 and the drug delivery component 520 are close together and ready to load the sustained-release drug, the locking part locks the carrier component 510 and the drug delivery component 520 to prevent the two from moving relative to each other and the push part 522 of the drug delivery component 520 cannot accurately load the sustained-release drug at the specified position of the syringe 30.

[0058] In some embodiments, Figures 1A to 2CThe loader shown, the sustained-release drug loading system also includes a control unit and a drug-releasing robot. The control unit is electrically connected to the drive unit, the drug-releasing robot and the longitudinal pushing mechanism. The control unit can control the drive unit to drive the carrier component 510 and the drug delivery component 520 to move closer to or away from each other, can control the drug-releasing robot to automatically place the sustained-release drug into the oblique cut position or positioning groove 5214 of the needle tube 30, and can control the longitudinal pushing mechanism to automatically push the sustained-release drug into the needle tube 30, thereby realizing the fully automated loading of the sustained-release drug by the injector.

[0059] In some embodiments, Figures 3A to 3C The loader shown, the sustained-release drug loading system also includes a control unit, which is electrically connected to the drive unit, the lateral drive unit and the longitudinal pushing mechanism. The control unit can control the drive unit to drive the carrier component 510 and the drug delivery component 520 to move closer to or away from each other, can control the lateral drive unit to automatically inject the sustained-release drug into the positioning groove 5214, and can control the longitudinal pushing mechanism to automatically push the sustained-release drug into the syringe 30, thereby realizing the fully automated loading of the sustained-release drug by the injector.

[0060] Finally, it should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0061] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only 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" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0062] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A sustained-release drug loader, characterized in that: include: A carrier component, wherein the carrier component can carry a sustained-release drug injector, and the sustained-release drug injector has a needle tube; The medicine delivery assembly is slidably engaged with the carrier assembly in the longitudinal direction so that the carrier assembly and the medicine delivery assembly can move away from or closer to each other. The medicine delivery assembly is used to load the sustained-release medicine into the needle tube, and includes: a loading seat having a loading portion adjacent to the loading assembly, the loading portion being used to provide a loading space for the sustained-release drug and the needle tube; A pushing member, slidingly engaged with the loading seat in the longitudinal direction; A top screw, one end of which is fixedly connected to the pushing member, and the other end of which can act on the sustained-release medicine to allow the pushing member to move longitudinally along the loading seat, thereby driving the top screw to push the sustained-release medicine into the needle tube.

2. The sustained-release drug loading device according to claim 1, characterized in that: The loading part has a limiting groove and a positioning hole, the limiting groove is used to limit the position of the needle tube, and the positioning hole is used to position the top screw. The central axis of the top screw, the central axis of the positioning hole and the central axis of the needle tube are coaxial.

3. The sustained-release drug loading device according to claim 2, characterized in that: The loading portion is provided with at least one transverse rib at intervals in the longitudinal direction, and the positioning hole passes through the transverse rib.

4. The sustained-release drug loading device according to claim 1, characterized in that: A supporting positioning member is further provided between the loading portion and the object-carrying assembly. The supporting positioning member has a positioning support hole, and the needle tube passes through the positioning support hole.

5. The sustained-release drug loading device according to claim 1, characterized in that: The loading portion has a limiting groove and a positioning groove, the limiting groove is used to limit the position of the needle tube, the positioning groove is used to accommodate the sustained-release medicine and position the top screw, and the central axis of the top screw is coaxial with the central axis of the needle tube.

6. The sustained-release drug loading device according to claim 5, characterized in that: The loading seat has a limiting hole in the longitudinal direction, which is adjacent to the loading assembly and is used to limit the needle tube. The central axis of the needle tube is coaxial with the central axis of the limiting hole, and the limiting hole is connected to the limiting groove in the longitudinal direction.

7. The sustained-release drug loading device according to claim 6, characterized in that: The loading portion further comprises a medicine delivery groove, which is perpendicular to and communicates with the positioning groove and can accommodate the sustained-release medicine; The medicine delivery assembly further includes a lateral rod, and the lateral rod acts on the sustained-release medicine to push the sustained-release medicine from the medicine delivery groove into the positioning groove.

8. The sustained-release drug loading device according to any one of claims 1 to 7, characterized in that: The object carrier assembly includes a carrier platform having a sliding cavity; The loading seat comprises a loading base and a loading top seat, the loading top seat is arranged on the loading base, the loading portion is located on the loading top seat, and the loading base is slidably matched with the sliding cavity.

9. The sustained-release drug loading device according to claim 8, characterized in that: The top of the loading platform is also provided with a loading cavity adapted to the sustained-release drug injector, and the sustained-release drug injector can be accommodated and fixed in the loading cavity.

10. The sustained-release drug loading device according to claim 8, characterized in that: The loading top seat is provided with a mounting groove, and the loading part is replaceably fixed in the mounting groove.

11. A sustained-release drug loading system, characterized in that: The method comprises the sustained-release drug loader according to any one of claims 1 to 10 and a loading track, wherein the sustained-release drug loader further comprises a driving unit, and the driving unit can drive the carrier component or the drug delivery component to move along the loading track so that the carrier component and the drug delivery component are close to each other for loading the sustained-release drug or move away from each other after the sustained-release drug is loaded.

12. The sustained-release drug loading system according to claim 11, characterized in that: The loading track includes at least a first loading track and a second loading track, and the sustained-release drug loader has at least two carrier assemblies, each of which selectively passes through the first loading track or the second loading track, so that at least two carrier assemblies can alternately load the sustained-release drug.

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