Reusable smart auto-injector

Abstract

The present application provides a reusable intelligent automatic injector, comprising: a host, which comprises: a housing, which forms an inner cavity, the inner cavity is configured to be able to detachably receive a syringe silo structure, and the syringe silo structure contains a prefilled injection syringe; a driving device, which is configured to push the push rod of the prefilled injection syringe; an identification device, which is configured to be able to identify the drug information on the prefilled injection syringe; a storage device, which stores injection information corresponding to the drug information; and a control device, which is configured to receive the drug information from the identification device, search for the injection information corresponding to the drug information in the storage device, and send a driving signal to the driving device based on the injection information to perform automatic injection. According to the present application, a simple, accurate and safe intelligent injection can be provided.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a reusable intelligent automatic injector for prefilled injection syringes. Background Art

[0002] In order to meet the needs of regular or long-term self-injection of drugs during home treatment of chronic diseases, pre-filled injection syringes suitable for self-injection have been developed. To complete self-injection, one way is to manually press the push rod of the pre-filled injection syringe to inject, and another way is to use an automatic injector to drive the push rod for injection. In comparison, the automatic injection method is safer, labor-saving, and efficient, and therefore has received more and more attention. However, the existing automatic injectors have poor applicability, low intelligence, poor safety, low injection accuracy, and complex structure, which are not easy to promote and apply.

[0003] Specifically, according to the frequency of use, existing automatic injectors can be divided into two types: disposable and reusable. Disposable automatic injectors can only provide automatic injection of specific drugs and specific doses, and because they are one-time use, they often cause great waste and easily cause environmental pollution. Reusable automatic injectors can be repeatedly loaded with prefilled syringes, but due to the differences in specifications of different types of prefilled syringes, it is difficult to make a reusable automatic injector adapt to prefilled syringes of various specifications, and the applicability is poor.

[0004] In addition, even if the reusable automatic injector can be installed with a variety of prefilled syringes of different specifications, there are often some problems in terms of performance. For example, before the needle of the prefilled syringe is inserted into the injection site of the patient, it is necessary to exhaust the air. However, when filling prefilled syringes of different specifications, the volume change, viscosity change of different drugs, and the different distances between the push rod position and the drive mechanism may lead to inaccurate exhaust, either excessive exhaust and waste of drugs, or insufficient exhaust and air entering the patient's body and not meeting the injection specifications.

[0005] In addition, since patients often have a fear of needles when self-injecting drugs and lack operating experience, when using reusable automatic injectors for self-injection, patients may misremember the drug, injection dose, injection steps, etc., resulting in the risk of wrong injection, missed injection, insufficient injection dose, incorrect injection steps, etc., which may injure the patient's body or damage the automatic injector.

[0006] Furthermore, in order to facilitate the management of patients' treatment information and enable doctors to understand the implementation of treatment plans in a timely manner, the Internet management of medical information has become a future development trend. However, injection records, especially records of patients' self-injections, are not currently effectively managed and cannot provide feedback for subsequent treatment and evaluation. Therefore, it is not conducive to the connection and interaction between patient health information and drug management and treatment plan adjustment.

[0007] In summary, there is a need to improve the existing automatic injectors. Summary of the invention

[0008] The purpose of the present application is to provide an improved reusable intelligent automatic injector for prefilled injection syringes to solve at least one problem existing in the prior art.

[0009] According to one aspect of the present application, a reusable intelligent automatic injector is provided, comprising: a host, which comprises: a shell, which forms an inner cavity, the inner cavity is configured to be able to detachably receive a syringe magazine structure, and the syringe magazine structure contains a prefilled injection syringe; a driving device, which is configured to push the push rod of the prefilled injection syringe; an identification device, which is configured to be able to identify drug information on the prefilled injection syringe; a storage device, which stores injection information corresponding to the drug information; and a control device, which is configured to receive the drug information from the identification device, search the injection information corresponding to the drug information in the storage device, and send a driving signal to the driving device based on the injection information to perform automatic injection.

[0010] According to an embodiment of the present application, the drug information includes at least the drug name and the drug dosage, and the injection information includes at least the exhaust volume and the injection speed.

[0011] According to an embodiment of the present application, the control device is further configured to store the injection record in the storage device, and the injection record at least includes the drug name, injection dose, injection time and injection speed.

[0012] According to an embodiment of the present application, the smart automatic injector further includes a communication device configured to send the injection record to a remote server or receive updated injection information from the remote server.

[0013] According to an embodiment of the present application, the intelligent automatic injector further comprises a prompt device, which is configured to receive instructions from the control device and issue prompt information, wherein the prompt information comprises at least one of audio information, video information, tactile information and text information.

[0014] According to an embodiment of the present application, the identification device includes a reading coil, and the reading coil is configured to read a radio frequency identification tag on the prefilled injection syringe, and the radio frequency identification tag contains the drug information.

[0015] According to an embodiment of the present application, the radio frequency identification tag is arranged to be perpendicular to the plane where the reading coil is located.

[0016] According to one embodiment of the present application, the driving device includes: a motor having an output shaft; a screw connected to the output shaft and configured to rotate with the rotation of the output shaft; a nut arranged around the screw and configured to move linearly with the rotation of the screw; and a push block fixedly connected to or integrated with the nut and configured to push the push rod of the prefilled injection syringe to move in a direction parallel to the screw.

[0017] According to one embodiment of the present application, the driving device further includes: an encoder, which includes a code disk and an encoding sensor, the code disk is configured to rotate with the rotation of the output shaft, the encoding sensor is arranged to face the code disk and is configured to sense the rotation of the code disk and output a feedback signal; the control device is configured to receive the feedback signal and output a driving signal to the driving device to adjust the operation of the motor.

[0018] According to one embodiment of the present application, the driving device also includes a starting position switch and an end position switch, the starting position switch is configured to be triggered and send a starting position signal when the push block reaches the starting position switch, and the end position switch is configured to be triggered and send a end position signal when the push block reaches the end position switch, and the control device receives the starting position signal and the end position signal.

[0019] According to an embodiment of the present application, the distance between the start position switch and the end position switch matches a predetermined moving distance of the push rod.

[0020] According to one embodiment of the present application, the intelligent automatic injector also includes the syringe bin structure, which includes: a first bin body; and a second bin body, which is connected to the first bin body so that the internal space defined by the first bin body and the second bin body can accommodate the barrel of the prefilled injection syringe; wherein, a bin body buckle is provided on the first bin body or the second bin body, and when the syringe bin structure is inserted into the shell of the host, the bin body buckle can be detachably matched with the card slot on the shell of the host to fix the syringe bin structure.

[0021] According to one embodiment of the present application, a first thread is provided on the first warehouse body, and the syringe warehouse structure also includes: a protective cover, a second thread matching the first thread is provided on the inner surface of which, so that the protective cover is threadedly connected to the first warehouse body; a protective tube, which is rotatably connected to the protective cover and is provided with a first claw, and the first claw is configured to be able to clamp the protective cap of the prefilled injection syringe; wherein, when the protective cover moves spirally relative to the first warehouse body and moves away from the first warehouse body, the protective cover drives the protective tube to move linearly, and at the same time, the first claw drives the protective cap to move linearly to make the protective cap detach from the prefilled injection syringe.

[0022] According to one embodiment of the present application, the syringe bin structure also includes a sheath and an elastic element, the sheath is surrounded by the first bin body, and the protective tube is surrounded by the sheath, the elastic element is arranged between the second bin body and the sheath, the first end of the sheath contacts the elastic element and bears the elastic force, so that the sheath abuts against the first stop portion of the first bin body, and the second end of the sheath exceeds the end of the needle of the prefilled injection syringe.

[0023] According to one embodiment of the present application, a sheath external stop guide portion is provided on the outer surface of the sheath and contacts the warehouse body stop guide portion on the inner surface of the first warehouse body, and a sheath internal stop guide portion is provided on the inner surface of the sheath and contacts the protective tube stop guide portion on the outer surface of the protective tube, so that the protective tube and the sheath remain non-rotatable relative to the first warehouse body.

[0024] According to an embodiment of the present application, the syringe silo structure further includes an exhaust sensor for monitoring the exhaust condition in the prefilled injection syringe.

[0025] According to one embodiment of the present application, a second claw is provided at one end of the second housing away from the first housing, and the second claw is configured to abut against the barrel of the prefilled injection syringe so that the prefilled injection syringe is clamped in the internal space.

[0026] According to an embodiment of the present application, the smart automatic injector includes a connection trigger sensor, which is configured to generate a signal allowing the smart automatic injector to continue subsequent actions when the syringe magazine structure is correctly connected to the host.

[0027] According to an embodiment of the present application, the sheath includes a trigger rod, which is configured to extend beyond a distance set by the second chamber when the sheath is pushed by a force opposite to the elastic force, and the second end of the sheath retracts to the set distance.

[0028] According to one embodiment of the present application, the intelligent automatic injector also includes an injection trigger switch, and the injection trigger switch is configured to be triggered by the trigger rod only when the sheath is pushed by a force opposite to the elastic force and the trigger rod extends beyond the set distance of the second chamber body, thereby allowing the drive device to push the push rod.

[0029] The reusable intelligent automatic injector of the present application can achieve the following technical effects:

[0030] 1. Split design: The main unit can be reused, saving materials and reducing user costs, while the syringe silo structure can be disposable or reusable. Each syringe silo structure can accommodate prefilled injection syringes of different types and doses, and one main unit can be matched with different types of syringe silo structures as needed, thereby improving the applicability of the automatic injector;

[0031] 2. The host can accurately identify the drug information in different pre-filled injection syringes, such as drug name and drug dosage, and intelligently adjust the injection parameters according to different drugs to achieve accurate injection;

[0032] 3. The control device of the host can store the injection records in the storage device, and can transmit them to various application platforms or servers through the data interface to upload the injection records, so that patients and doctors can monitor the injection status and remind injections in time, thus realizing the intelligent interconnection of injection records;

[0033] 4. The host has voice, lighting, text, touch and other prompts, which can prompt the injection process and abnormal information, and provide intelligent guidance for patients' self-injection;

[0034] 5. Improved safety of the host: injection is allowed only when the host is correctly connected to the syringe structure and the sheath of the syringe structure is compressed to the set distance, thus avoiding false triggering before injection;

[0035] 6. The protective cover of the syringe silo structure and the protective cap of the prefilled injection syringe can be removed in one operation, which is convenient and quick;

[0036] 7. The needle silo structure has a hidden needle design, a controlled injection depth design and a push-type filling design, which can eliminate the patient's fear of needles, accurately control the injection depth and improve the stability of the injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application, rather than to limit the scope of the present application. In the accompanying drawings:

[0038] Figure 1is a schematic perspective view of a reusable smart automatic injector according to an exemplary embodiment of the present application, wherein the main unit and the protective cover are separated;

[0039] Figure 2 yes Figure 1 A schematic exploded view of the smart auto-injector shown;

[0040] Figure 3 yes Figure 1 A schematic block diagram of the smart automatic injector shown in ;

[0041] Figure 4a , Figure 4b and Figure 4c The installed needle silo structure is schematically shown. Figure 1 The front view, side view and rear view of the smart automatic injector shown;

[0042] Figure 5a and Figure 5b After removing the shell Figures 4a to 4c The front and rear views of the smart automatic injector shown in;

[0043] Figure 6a and Figure 6b Along Figure 4b The line I-I' and along Figure 4a A schematic cross-sectional view of the smart automatic injector taken along line II-II';

[0044] Figure 7 yes Figure 2 A schematic perspective view of the drive mechanism shown in ;

[0045] Figure 8 and Fig. 9 They are Figure 2 A schematic perspective view of the main board and the RFID board shown in ;

[0046] Fig.10a , Fig.10b and Fig.10c They are Figures 4a to 4c The front view, rear view and exploded view of the needle silo structure shown in Fig.10d is along Fig.10a A schematic cross-sectional view taken along line III-III' in FIG.

[0047] Fig.11 is a workflow diagram of a smart automatic injector according to an exemplary embodiment of the present application;

[0048] Fig.12 is an operational flow chart of performing self-injection using a smart automatic injector according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present application are described in detail below with reference to examples. However, it should be understood by those skilled in the art that these exemplary embodiments are not meant to limit the present application in any way. In addition, the features in the embodiments of the present application may be combined with each other in the absence of conflict. In different drawings, the same components are represented by the same reference numerals. For the sake of brevity, other components and steps are omitted in the drawings, but this does not mean that the reusable intelligent automatic injector of the present application may not include other components, nor does it mean that the workflow and operation flow of the intelligent automatic injector of the present application may not include other steps. It should be understood that the drawings are not drawn to scale, and the sizes, proportional relationships, and number of components of the components in the drawings are not intended to limit the present application.

[0050] Refer to the following Figures 1 to 3 Hereinafter, the overall structure of a reusable smart automatic injector according to an exemplary embodiment of the present application will be briefly described.

[0051] like Figure 1 and Figure 2 As shown, the intelligent automatic injector 500 of the present application includes a host 200, and the host 200 includes a housing 210, and the housing 210 is formed by a front housing 211 and a rear housing 212. The housing 210 forms an inner cavity (not shown), which is configured to be able to detachably receive a syringe cartridge structure 100 (see Figures 4a to 4c ). Therefore, the intelligent automatic injector 500 of the present application adopts a split design, that is, the host 200 and the syringe silo structure 100 are separate components, and they need to be assembled together only when injecting. Therefore, this automatic injector can be reused, thereby saving materials and reducing user costs. In addition, since one host can be matched with syringe silo structures of different models, and each syringe silo structure can accommodate prefilled injection syringes of different types and doses, the applicability of the automatic injector is improved.

[0052] like Figure 3 As shown in the block diagram of FIG. 5 , the intelligent automatic injector 500 further includes a drive device 260, an identification device 250, a storage device 270 and a control device 240, wherein the drive device 260 is configured to push the push rod 72 (see FIG. 7 ) of the prefilled injection syringe 70. Figure 6a and Figure 6b), the identification device 250 is configured to be able to identify the drug information on the prefilled injection syringe 70, the storage device 270 stores the injection information corresponding to the drug information (for example, at least including the exhaust volume and the injection speed), and the control device 240 is configured to receive the drug information from the identification device 250, search the injection information corresponding to the drug information in the storage device 270, and send a drive signal to the drive device 260 based on the injection information to perform exhaust and automatic injection. Therefore, in the intelligent automatic injector 500 of the present application, the drug information in different prefilled injection syringes 70, such as the drug name and drug dosage, can be identified by the identification device 250, and the control device 240 can find the corresponding injection information in the storage device 270 for different drugs according to the drug information, so that the drive signal provided to the drive device 260 can be intelligently adjusted, and then the various parameters for exhaust and automatic injection can be adjusted, so as to realize intelligent adjustment and precise exhaust and injection. Specifically, since the drug information in the prefilled syringe 70 has been identified, the exhaust volume and injection speed, etc. can be accurately known based on the injection information in the storage device 270. Therefore, the control device 240 can issue an accurate driving signal, so that the driving device 260 can accurately exhaust according to the predetermined volume, and then complete the injection of the predetermined dose according to the predetermined injection speed.

[0053] It should be noted that in order to ensure accurate exhaust, the intelligent automatic injector of the present application may also include an exhaust sensor for monitoring the exhaust status of the prefilled injection syringe. For example, the exhaust sensor may include an optical sensor (monitoring the change in air volume in the prefilled injection syringe) and / or a pressure sensor (monitoring the sudden change in pressure during exhaust), etc., to make the exhaust more accurate. Further description of the exhaust sensor will be given in the description of the syringe silo structure 100 below.

[0054] In addition, when the automatic injection is completed, the control device 240 can store the injection record in the storage device 270, so that the injection record can be effectively recorded and managed. Preferably, the injection record can at least include the drug name, injection dose, injection time and injection speed.

[0055] In order to realize the intelligent interconnection of injection information, the intelligent automatic injector 500 may also include a communication device 280, which is configured to send the injection record to the remote server or receive updated injection information from the remote server. Therefore, the injection record stored in the storage device 270 can be transmitted to each application platform or server through the communication device 280 in a wired or wireless manner, which is convenient for doctors to monitor the injection situation and realize the digital management and intelligent interconnection of injection records. On the other hand, the injection information in the storage device 270 can be updated at any time so that a new prefilled injection syringe 70 (which has new drug information) can also be used in the intelligent automatic injector 500.

[0056] In order to provide intelligent guidance to the user, the intelligent automatic injector 500 may also include a prompt device 290, which is configured to receive instructions from the control device 240 and issue prompt information, such as audio information, video information, tactile information and / or text information. For example, through voice and light prompts, the injection process and abnormal information can be prompted, thereby providing timely, accurate and friendly injection guidance to the patient.

[0057] in addition, Figure 3 A power source 238 is also shown, such as a rechargeable battery, however, the present application may also adopt various other power sources, such as a cable connected to the mains.

[0058] The above only provides a general description of the main devices of the intelligent automatic injector 500 , and the specific arrangement structure of each device will be further described in detail below.

[0059] like Figure 1 As shown, the host 200 of the intelligent automatic injector 500 may further include a protective cover 220, which is provided with a protective cover buckle 221 corresponding to a card slot (not shown) on the housing 210 of the host 200, so that the protective cover 220 can close the inner cavity of the housing 210 of the host 200 to protect the various devices in the housing 210. It should be noted that the host 200 of the intelligent automatic injector 500 of the present application can also be implemented without the protective cover 220.

[0060] After the protective cover 220 is removed from the main unit 200, the syringe silo structure 100 filled with the prefilled injection syringe 70 can be loaded into the inner cavity of the housing 210, for example, at one end of the main unit 200. Figures 4a to 4c Before describing the structure formed by assembling the housing 210 and the syringe silo structure 100 together, first refer to Figure 2 , Figures 4a to 4c The structure of the housing 210 will be described.

[0061] The housing 210 is formed by a front housing 211 and a rear housing 212, and can form a streamlined or arc-transition appearance, for example, roughly in the shape of a dolphin, so as to facilitate the user to carry and use. However, the present application is not limited thereto, and housings of various shapes can be used.

[0062] The front housing 211 is provided with buttons, such as an on / off button 214 and an exhaust button 213 (the specific functions of which will be described in detail below), and a panel 215. The panel 215 may be a transparent panel, and a light board 234 is provided on the back thereof. The light board 234 is provided with a plurality of light emitting elements (such as LEDs) that can display various light information, such as red for abnormality and green for normality. To enhance the display effect, a silicone light ring 235 is also provided above the light board 234. Figure 5a As shown, a plurality of light-emitting elements can be arranged in a circle so that they can be gradually lit or extinguished as the injection progresses, thereby dynamically prompting the injection progress and injection status. In particular, the prompting device 290 can provide full-course voice and light effect prompts, which is convenient for use by groups such as children and the elderly. Alternatively, the panel 215 can also be a display panel, such as a liquid crystal display panel, which can display various video information, text information, etc. A sound outlet 216 is also provided on the rear housing 212, and a speaker 236 fixed with a speaker cover 237 is provided at a position adjacent to the sound outlet 216 in the rear housing 212, so that various audio prompt information can be provided, for example, by voice broadcasting the operation steps and injection progress. Therefore, the above-mentioned panel 215, light board 234, speaker 236, etc. together constitute the above-mentioned prompting device 290. However, the present application is not limited thereto, but may include other prompting components, such as a vibration component, to provide tactile prompts, thereby providing a better user experience for users with limited vision or hearing.

[0063] like Figure 2 and Figure 4c As shown, an interface plug 217 is also provided at the end of the rear housing 212, and the interface plug 217 can close and protect a data interface, such as a USB interface. Accordingly, the storage device 270 and the communication device 280 in the housing 210 can be connected to the data interface.

[0064] The front shell 211 and the rear shell 212 are assembled together to form an inner cavity, which, in addition to accommodating the above-mentioned drive device 260, identification device 250, control device 240, storage device 270, communication device 280, power supply 238, etc., also leaves a certain amount of space for receiving the syringe silo structure 100. To facilitate the installation of various components, a main bracket 231 and a sub-bracket 232 are also provided in the shell 210. In addition, various printed circuit boards (hereinafter referred to as PCBs) can also be installed in the shell 210. For example, the control device 240 can be mainly implemented by one PCB, and the identification device 250 can be mainly implemented by another PCB, such as Figure 8 and Fig. 9 It should be understood that the control device 240 and the identification device 250 can be integrated on a PCB, or the storage device 270 and the communication device 280 can also be integrated on the PCB, and the present application does not limit the specific PCB configuration.

[0065] Reference Figure 2 , Figure 6a , Figure 6b and Fig. 9, the identification device 250 may include a reading coil 254, which is configured to be able to read a radio frequency identification tag (hereinafter referred to as RFID tag) 76 on the prefilled injection syringe 70, wherein the RFID tag 76 contains drug information. The identification device 250 can send the identified drug information to the control device 240. The reading coil 254 can be set at the end of the main bracket 231 and arranged circumferentially around the opening of the main bracket 231. When the syringe silo structure 100 is loaded into the housing 210 of the host 200, the barrel 71 of the prefilled injection syringe 70 is close to the reading coil 254, and the RFID tag 76 is curled and attached to the barrel 71, so it can be read by the reading coil 254. Figure 6a and Figure 6b As shown, in the identification device 250 of the present application, the RFID tag 76 can be set to be perpendicular to the reading coil 254. Specifically, the attachment surface of the RFID tag 76 (i.e., the outer peripheral surface of the cylinder 71) is perpendicular to the plane where the reading coil 254 is located. Therefore, the RFID tag 76 no longer needs to be placed parallel to the reading coil 254 as in the prior art, but can be placed perpendicular to each other. Although the prefilled injection syringe 70 translates and rotates when passing through the reading coil 254, so that the RFID tag 76 may be in a completely random position relative to the reading coil 254, the reading coil 254 can still read the information of the RFID tag 76 360 degrees without dead angles. By accurately identifying drugs, medication errors can be avoided, and injected drugs can be recorded and managed in a timely manner. Adaptive drugs can be achieved, and the exhaust volume and injection speed can be automatically determined, so that different types and volumes of drugs can be accurately exhausted and accurately injected.

[0066] Reference Figure 2 , Figure 6a , Figure 6b and Figure 7 The driving device 260 of the intelligent automatic injector 500 of the present application may include a motor 261, such as a brushed DC motor. The motor 261 may have an output shaft 268. When the motor 261 is powered, the output shaft 268 rotates and outputs power to the outside through the speed reduction mechanism 265.

[0067] The drive device 260 may further include an encoder, which includes a code disk 266 and an encoding sensor 267. The code disk 266 may be configured to rotate with the rotation of the output shaft 268. The encoding sensor 267 may be arranged to face the code disk 266 and may be configured to sense the rotation of the code disk 266 and output a feedback signal. For example, when the encoder is a Hall encoder, the code disk 266 is a Hall code disk, and the encoding sensor 267 is a Hall sensor, and when the encoder is a photoelectric encoder, the code disk 266 is an optical code disk, and the encoding sensor 267 is a photoelectric encoding sensor. It should be noted that the present application is not limited to the encoders exemplified above, but any existing encoders may be used, and the encoder will not be described in further detail herein.

[0068] By setting an encoder, the code disk 266 can be driven to rotate when the motor 261 rotates, so that the encoder sensor 267 outputs a feedback signal corresponding to the rotation angle of the rotor (or output shaft 268) of the motor 261. The control device 240 (or a control unit dedicated to the drive device) can collect the feedback signal output by the encoder, and can calculate the current speed of the motor 261 according to the feedback signal. The control device 240 can compare the calculated current speed with the set speed of the motor 261, and output an adjusted drive signal according to the comparison result, thereby adjusting the speed of the motor 261. Then, the motor 261 runs at the adjusted speed, and the encoder continues to output a feedback signal to the control device 240, thereby realizing closed-loop feedback control. Therefore, by setting an encoder in the drive device 260, the action feedback mechanism of the motor is optimized, so that the speed of the motor can be accurately adjusted according to the closed-loop feedback control principle, thereby improving the driving accuracy.

[0069] The driving device 260 may also include a screw 262, a nut 263 and a push block 264, wherein the screw 262 is connected to the output shaft 268 through a speed reduction mechanism 265 and is configured to rotate with the rotation of the output shaft 268, the nut 263 is arranged around the screw 262 and is configured to move linearly with the rotation of the screw 262, and the push block 264 is fixedly connected or integrated with the nut 263 and is configured to be able to push the push rod 72 of the prefilled injection syringe 70 to move in a direction parallel to the screw 262. Therefore, through the cooperation between the screw, the nut and the push block, not only the conversion problem of the rotary motion of the motor into the linear motion of the push rod is solved, but also an off-axis design can be realized compared with the conversion device using connecting rods, gears and belts, which can save space, simplify the structure and reduce costs. For example, the thread on the screw 262 can be a fine thread, so that although the screw 262 rotates multiple times with the output shaft 268, the distance traveled by the nut 263 is very small, so that the control of a small distance can be achieved.

[0070] In order to more accurately control the driving stroke of the motor 261, the driving device 260 may further include a starting position switch 251 and an ending position switch 252. Fig. 9 As shown, the starting position switch 251 and the end position switch 252 can be set on the PCB of the identification device 250, but the present application is not limited thereto. The starting position switch 251 is configured to be triggered and send a starting position signal when the push block 264 reaches the starting position switch 251, so that the control device 240 can mark the current position as the starting position, and the end position switch 252 is configured to be triggered and send a end position signal when the push block 264 reaches the end position switch 252, so that the control device 240 can mark the current position as the end position. For example, the starting position switch 251 and the end position switch 252 can be mechanical buttons, and when the push block 264 reaches the starting position switch 251, the starting position switch 251 is triggered, and the control device 240 can receive a high / low level starting position signal, so that a marked starting position can be determined, rather than a starting position calculated according to the speed and time of the motor 261. Similarly, a marked end position can also be determined. Therefore, by setting the starting position switch 251 and the ending position switch 252, the driving stroke of the motor 261 can be accurately controlled to avoid the problems of return error, insufficient stroke or overshoot.

[0071] In addition, the distance between the start position switch 251 and the end position switch 252 can match the predetermined movement distance of the push rod 72. In this way, it can be ensured that the push rod 72 pushes the predetermined injection dose after the predetermined movement distance. Figure 6a and Figure 6b : A hypothetical situation is shown in FIG. 1 : Although the protective cap 75 of the prefilled injection syringe 70 is still not removed, the push block 264 of the drive device 260 has been pushed to the end position switch 252, and accordingly, the push rod 72 is also pushed to the predetermined position. However, in actual application scenarios, the protective cap 75 will be removed in advance, and Figure 6a and Figure 6b The state shown in may indicate the end of injection.

[0072] To ensure that the push block 264 is located at the starting position switch 251 when the pushing starts, the control device 240 may have a self-checking function, that is, the control device 240 may be configured to detect whether the push block 264 is located at the starting position switch 251. If it is detected that the push block 264 is not located at the starting position switch 251, the control device 240 sends a driving signal to the driving device 260, causing the motor 261 to rotate, thereby driving the push block 264 to return to the starting position switch 251. In this way, it can be ensured that the pushing starts from the calibrated starting position.

[0073] Therefore, by providing the identification device 250, the driving device 260 and the control device 240, intelligent adjustments can be made for different medicines according to the identification information, and the injection dosage and injection speed can be accurately controlled to stabilize the injection effect.

[0074] Refer to the following Figures 5a to 6b , Figures 10a to 10d To describe the syringe cartridge structure 100 that can be installed on the host 200 of the intelligent automatic injector 500 and the cooperation between the syringe cartridge structure 100 and the host 200 .

[0075] Before describing the syringe silo structure 100 in detail, the prefilled injection syringe 70 is briefly described. Figure 6a and Figure 6b As shown, the prefilled injection syringe 70 includes a barrel 71 for containing liquid medicine, a push rod 72 for pushing the liquid medicine (the end of which may be provided with a silicone plug), a needle 74 for piercing the patient's body, and a protective cap 75 (for example, a silicone cap) for protecting the needle 74. Since the prefilled injection syringe 70 is an existing product, it will not be described in further detail herein.

[0076] During use, the prefilled injection syringe 70 is first installed in the syringe bin structure 100, and then the syringe bin structure 100 is installed on the host 200. After the host 200 is started to complete the automatic injection, the syringe bin structure 100 can be removed from the host 200, so that a new prefilled injection syringe 70 or a new syringe bin structure 100 can be replaced for subsequent automatic injection. Therefore, the syringe bin structure 100 can also be called a "magnetic magazine structure", in which the syringe bin structure 100 fills the host 200 with prefilled injection syringes 70 in a manner similar to a "magnetic magazine". Therefore, the syringe bin structure 100 can be changed according to the model and specification of the prefilled injection syringe 70, so that the same host 200 of the intelligent automatic injector 500 can adapt to different models of prefilled injection syringes 70 and matching syringe bin structures 100. It should be noted that the prefilled injection syringe 70 can be integrated with the syringe magazine structure 100 during manufacturing, so that a different syringe magazine structure 100 can be selected for each injection without the patient having to assemble it himself.

[0077] like Figures 5a to 6b , Figures 10a to 10d As shown, the syringe silo structure 100 may include a first silo body 10 and a second silo body 20, and the second silo body 20 is connected to the first silo body 10, so that the internal space 26 defined by the first silo body 10 and the second silo body 20 can accommodate the barrel 71 of the prefilled injection syringe 70. The first silo body 10 is provided with a silo body buckle 11, and when the syringe silo structure 100 is inserted into the housing 210 of the host 200, the silo body buckle 11 can be detachably matched with the housing slot on the housing 210 of the host 200 to fix the syringe silo structure 100.

[0078] Accordingly, the protective cover buckle 221 has a shape similar to the bin buckle 11, so that after the used syringe bin structure 100 is removed from the host 200, the protective cover 220 can be covered on the host 200, thereby protecting the internal components of the host 200. It should be noted that the bin buckle 11 can also be provided on the second bin 20. Alternatively, a bin slot can be provided on the first bin 10 or the second bin 20, and a corresponding shell buckle can be provided on the shell 210, so as to realize the connection between the syringe bin structure 100 and the host 200. Therefore, this split design can allow the host to be reused, save materials, and reduce costs on the one hand, and allow the host to match syringe bin structures of different specifications on the other hand, thereby expanding the applicability of the intelligent automatic injector.

[0079] It should be noted that although Figures 5a to 6b , Figures 10a to 10d Although not shown, an exhaust sensor for ensuring accurate exhaust can be disposed in the first housing 10, for example, on the inner wall of the first housing 10, so that the exhaust sensor can be close to the front end of the barrel 71 of the prefilled injection syringe 70, so as to monitor the air volume change in the prefilled injection syringe 70 and / or the sudden change in pressure during exhaust. In addition, an electrical connection interface (not shown) is also disposed on the first housing 10 to provide power and transmit signals to the exhaust sensor.

[0080] In addition, if Figure 2 As shown, the host 200 may include a connection trigger sensor 233, which is configured to generate a signal allowing the intelligent automatic injector 500 to continue subsequent actions when the host 200 is correctly connected to the syringe silo structure 100. For example, the connection trigger sensor 233 may include a reset spring 243, a trigger pin 244 and a contact 253. When the syringe silo structure 100 is connected to the host 200, the trigger pin 244 of the connection trigger sensor 233 is pressed by the recess 29 on the syringe silo structure 100, so that the contact 253 generates a signal. Fig. 9 As shown, the contact 253 can be set on the PCB of the identification device 250, but the present application is not limited to this. It should be noted that the connection trigger sensor 233 is not limited to the form illustrated above, but can adopt any one of a Hall sensor, an optical coupling sensor and a mechanical trigger sensor. Therefore, by setting a connection trigger sensor, the safety of use can be improved. For example, subsequent actions are allowed to be performed only when the host is correctly connected to the syringe silo structure. On the contrary, if the syringe silo structure is not correctly installed, or an unmatched syringe silo structure is installed, the subsequent actions cannot be continued.

[0081] As 5a to Figure 6b , Figures 10a to 10dAs shown, the syringe silo structure 100 further includes a protective cover 30 and a protective tube 40, the first silo body 10 is located between the second silo body 20 and the protective cover 30, and the protective tube 40 is surrounded by the protective cover 30. The outer surface of the first silo body 10 is provided with a first thread 13. The inner surface of the protective cover 30 is provided with a second thread 33 adapted to the first thread 13, so that the protective cover 30 is threadedly connected to the first silo body 10. The protective tube 40 is rotatably connected to the protective cover 30 and is provided with a first claw 43, and the first claw 43 is configured to be able to clamp the protective cap 75 of the prefilled injection syringe 70. Specifically, the protective cover 30 includes an end plate 31 and a side wall 32 extending from the end plate 31, and the second thread 33 can be provided on the inner surface of the side wall 32. The first end 41 of the protective tube 40 is rotatably connected to the end plate 31 and the first claw 43 is located at the second end of the protective tube 40. When the protective cover 30 moves spirally relative to the first chamber body 10 and moves away from the first chamber body 10 , the protective cover 30 drives the protective tube 40 to move linearly, and at the same time the first claw 43 drives the protective cap 75 to move linearly, so that the protective cap 75 is separated from the prefilled injection syringe 70 .

[0082] Therefore, the syringe silo structure 100 allows the protective cover to be easily removed by rotating it like twisting the cap of a mineral water bottle, and the protective cap can also be pulled out in a straight line. In this way, the protective cover of the syringe silo structure and the protective cap of the prefilled injection syringe can be removed at the same time in one step, thereby realizing the integrated cap removal. In addition, the problem that the protective cap is not convenient and laborious to pull out directly is solved, and the problem that the needle is easily skewed and easily blocked and contaminated by the debris of the protective cap due to the protective cap screwing method is avoided.

[0083] Specifically, the rotatable connection between the protective cover 30 and the protective tube 40 can be formed by providing a protrusion 34 on the end plate 34 and a groove 44 on the first end 41 of the protective tube 40, so that the protrusion 34 can rotate along the groove 44 but not separate from the groove 44. Preferably, the sliding coefficient between the groove 44 on the first end 41 of the protective tube 40 and the protrusion 34 on the protective cover 30 should be reduced as much as possible to minimize the friction between the two. In this way, the protective cover 30 can be rotated relative to the protective tube 40, but the protective tube 40 remains non-rotating, so that the screwing action of the protective cover 30 and the straight pulling action of the protective tube 40 driving the protective cap 75 can be achieved simultaneously. It should be pointed out that the present application is not limited to the rotatable connection between the protective cover 30 and the protective tube 40 described above, and other structures can also be used as long as the same action and effect can be achieved.

[0084] Generally, in the prefilled injection syringe 70, the protective cap 75 is tightly buckled on the end of the barrel 71, so there is a large friction force between the protective cap 75 and the end of the barrel 71, while the friction force generated by the rotatable connection between the protective cover 30 and the protective tube 40 is small. When the protective cover 30 rotates along the first thread 13 of the first housing 10, the protective tube 40 can remain non-rotating due to the large friction force between the protective cap 75 and the end of the barrel 71 until the protective cap 75 is linearly pulled away from the end of the barrel 71 by a sufficient distance. When the protective cap 75 is linearly pulled away by a sufficient distance, the protective tube 40 has basically pulled out the protective cap 75. Even if the protective cap 75 has not been completely pulled out at this time, the friction force between the protective cap 75 and the end of the barrel 71 is already very small, and is not enough to break the protective cap 75 and generate debris.

[0085] In order to ensure that the protective tube 40 does not rotate when the protective cover 30 rotates, a protective tube stop guide 45 may be provided on the outer surface of the protective tube 40, which is configured to be directly or indirectly restricted by a tank stop guide (not shown) on the inner surface of the first tank body 10 to prevent the protective tube 40 from rotating. Fig.10c As shown in , the protective tube stopper guide 45 is a rib provided on the outer surface of the protective tube 40 along the longitudinal axis of the protective tube 40, which can prevent the protective tube 40 from rotating in the circumferential direction on the one hand, and guide the protective tube 40 to move linearly in the longitudinal direction on the other hand. Accordingly, the tank body stopper guide can adopt a structure matching therewith, for example, a groove or a rib provided in the longitudinal direction, which directly or indirectly contacts the protective tube stopper guide 45, so as to limit the rotation of the protective tube 40 and guide the linear movement of the protective tube 40.

[0086] In order to enable the first claw 43 of the protective tube 40 to firmly clamp the protective cap 75, the second end 42 of the protective tube 40 may be provided with a plurality of first claws 43, and these first claws 43 are evenly distributed along the circumferential direction. In addition, it is also conceivable that the first claw 43 can be clamped on the cap body of the protective cap 75, and accordingly, the cap body may be provided with features such as recesses and textures that facilitate clamping.

[0087] Therefore, from the above description, it can be known that only through the rotatable connection between the protective cover 30 and the protective tube 40 and the threaded connection between the protective cover 30 and the first chamber body 10, the combination of the screwing action and the straight pulling action can be achieved, so that the protective cover and the protective cap can be removed conveniently and labor-savingly, and the needle can be prevented from being contaminated by protective cap debris.

[0088] like Figure 6aAs shown, in order to provide the connection between the first warehouse body 10 and the second warehouse body 20, a connection buckle 12 is provided on the first warehouse body 10, and a connection slot 22 is provided on the second warehouse body 20. The connection buckle 12 and the connection slot 22 can be snapped together, so that the first warehouse body 10 and the second warehouse body 20 are connected together to define an internal space 26 for accommodating the prefilled injection syringe 70. It should be noted that the connection buckle 12 and the connection slot 22 can be interchangeable and can be achieved in a variety of ways. For example, the connection buckle 12 can be a directional buckle, and when the connection buckle 12 and the connection slot 22 are snapped together, a non-detachable snap-fit ​​structure is formed. Therefore, in this case, the syringe silo structure 100 becomes a disposable product. Alternatively, the connection buckle 12 can be a retractable buckle, and when the connection buckle 12 and the connection slot 22 are snapped together, a detachable snap-fit ​​structure is formed. When subjected to a force in the opposite direction, the connection buckle 12 can be separated from the connection slot 22, so that the syringe silo structure 100 can be repeatedly used.

[0089] like Figure 6a and Figure 6b As shown, in order to ensure that the position of the prefilled injection syringe 70 in the syringe bin structure 100 remains unchanged, an end of the second bin body 20 away from the first bin body 10 is provided with an opening (not shown) and a second clamping claw 21 arranged around the opening, and the second clamping claw 21 is configured to abut against the barrel 71 of the prefilled injection syringe 70, so that the prefilled injection syringe 70 is clamped in the internal space 26. Specifically, the second clamping claw 21 is configured to lock the flange 73 of the barrel 71 of the prefilled injection syringe 70. In this way, when the prefilled injection syringe 70 is pushed from the opening of the second bin body 20 into the internal space 26, the second clamping claw 21 locks the flange 73, so that it cannot be taken out at will. Preferably, the internal space 26 can be formed by the sleeve 25 of the second chamber body 20, and the inner diameter of the sleeve 25 matches the outer diameter of the barrel 71, so that the barrel 71 can be easily inserted into the sleeve 25, and the alignment position of the barrel 71 can be guaranteed, so that during the liquid pushing process, the push rod 72 only completes the liquid pushing without affecting the injection depth, while preventing the needle from changing direction due to external force.

[0090] like Figure 6a , Figure 6b , Fig.10c and Fig.10dAs shown, the syringe silo structure 100 may also include a sheath 50 and an elastic element 60. Although the removal of the protective cover 30 and the protective cap 75 can be achieved without the sheath 50 and the elastic element 60, the syringe silo structure 100 of the present application can have more advantages by providing the sheath 50. It should be pointed out that although the elastic element 60 is shown in the preferred form of a cylindrical coil spring in the accompanying drawings, the present application is not limited to this. In the description of the present application, the elastic element may include any element, component or structure that can be deformed under the action of an external force and return to its original state after the external force is removed, such as a cylindrical coil spring, a variable diameter coil spring, a volute spring, a leaf spring, a plate spring, a torsion spring, a hydraulic spring, an air spring, etc.

[0091] The sheath 50 is surrounded by the first warehouse body 10, and the protective tube 40 is surrounded by the sheath 50. The elastic element 60 is arranged between the second warehouse body 20 and the sheath 50. The first end of the sheath 50 contacts the elastic element 60 and bears the elastic force, so that the sheath 50 abuts against the first stopper 15 of the first warehouse body 10, and the second end of the sheath 50 exceeds the end of the needle 74 of the prefilled injection syringe 70. In this way, after removing the protective cover 30 and the protective cap 75, the needle 74 is hidden by the sheath 50, and the patient cannot see the needle 74, thereby realizing the full needle hidden design, which can alleviate the patient's fear of needles. In contrast, if there is no sheath 50, after removing the protective cover 30 and the protective cap 75, the needle 74 is directly exposed to the outside.

[0092] In order to control the injection depth, the sheath 50 includes a trigger rod 51, which is configured to extend beyond a distance D set by the second chamber 20, for example, 4-6 mm, when the sheath 50 is pushed by a force opposite to the elastic force (the force is equal to the pressure applied to the injection site during injection), and the second end of the sheath 50 retracts the set distance D, such as 4-6 mm. Figure 5b As shown. The distance D is defined by the matching structure in the sheath 50 and the second housing 20. For example, the second housing 20 is provided with a second stopper 24 (e.g., the end of the sleeve 25), and the sheath 50 is provided with a step portion 59 (e.g., the end of the sheath internal stopper guide 54 described below). When the sheath 50 is pushed to a distance D beyond the set distance of the second housing 20, the second stopper 24 and the step portion 59 abut against each other, thereby preventing the sheath 50 from moving further. At this time, the retraction of the sheath 50 exposes the needle 74, and the exposed length corresponds to the injection depth of the injection site, for example, 4-6 mm. Therefore, through the design of the sheath, the elastic element and the corresponding stopper, only the set injection depth is exposed after the sheath 50 is pressed, thereby achieving a precise injection depth.

[0093] On the other hand, when the syringe silo structure 100 is installed on the host 200, the injection trigger switch 241 on the intelligent automatic injector 500 can be triggered only when the trigger rod 51 extends beyond the distance D set by the second silo body 20, thereby allowing the driving mechanism to push the push rod 72. Therefore, it is possible to prevent mis-triggering before injection and accurately control the injection depth. In order to prevent the trigger rod 51 from being accidentally triggered, the first silo body 10 is also provided with a protective portion 14 for covering and protecting the trigger rod 51. It should be noted that the injection trigger switch 241 can be any one of a photoelectric trigger switch, a Hall trigger switch or a mechanical trigger switch.

[0094] like Figure 6a , Figure 6b , Fig.10c and Fig.10d As shown, the outer surface of the sheath 50 is provided with a sheath outer stop guide 57 that matches the storage body stop guide on the inner surface of the first storage body 10, and the inner surface thereof is provided with a sheath inner stop guide 54 that matches the protection tube stop guide 45 on the outer surface of the protection tube 40, so that the protection tube 40 and the sheath 50 remain non-rotatable relative to the first storage body 10, but can move linearly relative to each other. In this way, during the operation of removing the protective cover 30 and the protective cap 75, it can be ensured that the protective tube 40 does not rotate and can only move linearly along the stop guide 54 on the inner surface of the sheath 50. In addition, the end of the sheath outer stop guide 57 can abut against the first stopper 15. It should be noted that in the case where the sheath 50 is not provided, as long as the protection tube stop guide on the outer surface of the protection tube 40 matches the storage body stop guide on the inner surface of the first storage body 10, the above-mentioned operation of removing the protective cover 30 and the protective cap 75 at the same time can still be achieved.

[0095] Refer to the following Fig.11 To describe the workflow of the smart automatic injector 500 of the present application and refer to Fig.12 To describe the operation process of a user using the smart automatic injector 500 of the present application.

[0096] like Fig.11As described above, the intelligent automatic injector 500 starts from step 311, for example, by pressing the switch key 214 to turn on. Then, step 321 is entered, in which the control device 240 detects whether the push block 264 is located at the starting position switch 251. If it is detected that the push block 264 is located at the starting position switch 251, the next instruction is waited for, otherwise the motor 261 is rotated to push the push block 264 to the starting position switch 251, and the next instruction is waited for. At step 322, the control device 240 can instruct the prompt device 290 to issue a prompt message for installing the syringe silo structure 100 (which has been filled with a prefilled injection syringe 70). At step 323, the control device 240 determines whether the syringe silo structure 100 is correctly connected, that is, whether the connection trigger sensor 233 is triggered. If it has been triggered, step 324 is entered, otherwise, step 322 is returned. At step 324, the identification device 250 identifies the drug information of the prefilled injection syringe 70 and sends the drug information to the control device 240. If the identification fails, the process proceeds to step 332. In step 332, a prompt message is issued to check / replace the prefilled injection syringe 70, and then the process returns to step 322. On the contrary, if the identification is correct, the process proceeds to step 325. At step 325, a prompt is issued to remove the protective cover of the syringe silo structure and the protective cap of the prefilled injection syringe. Then, at step 326, an exhaust prompt is issued to remind the user to press the exhaust key 213, and after the user presses the exhaust key 213, the control device 240 sends a drive signal to the drive device 260 according to the injection information corresponding to the drug information to perform a precise exhaust operation. Since the drug information in the prefilled injection syringe 70 has been identified, the injection information corresponding to the drug information (including at least the exhaust volume and the injection speed) can be found in the storage device 270, so that the amount of the exhaust volume is exactly known, so the control device 240 can send an accurate driving signal so that the driving device 260 can accurately exhaust according to the predetermined volume. In addition, in the case of an exhaust sensor, the exhaust accuracy can be further ensured by the signal sensed by the exhaust sensor. At step 327, the user is prompted to press the intelligent automatic injector 500 hard on the injection site. At step 328, the control device 240 sends a driving signal to the driving device 260 according to the identification information to perform automatic injection. At step 329, the user is prompted that the automatic injection has been completed, and at step 330, the user is prompted to remove the syringe silo structure 100. Then, at step 331, the user is prompted to cover the protective cover 220. Finally, at step 312, the user is prompted to shut down or automatically shut down after standing for a period of time (for example, 1 minute).

[0097] When the user needs to self-inject, the user can use the smart automatic injector 500 of the present application to inject the Fig.12 The steps shown are to complete the automatic injection.

[0098] At step 410, the user presses the switch key 213, and then, at step 420, the user installs the syringe silo structure 100 according to the prompt. Subsequently, at step 430, the user performs the action of removing the protective cover 30 and the protective cap 75 according to the prompt. As described above, by rotating the protective cover 30 of the syringe silo structure 100, the protective cover 30 and the protective cap 75 can be removed in one piece. It should be noted that before step 430, the control device 240 of the intelligent automatic injector 500 has determined that the syringe silo structure 100 has been correctly connected to the host 200 and the drug information has been identified. At step 440, the user performs the exhaust operation according to the prompt, that is, presses the exhaust key 213. At this time, the control device 240 sends a drive signal to the drive device 260 according to the injection information corresponding to the drug information to achieve precise exhaust. At step 450, the user presses the sheath 50 of the syringe silo structure 100 on the injection site according to the prompt. When pressed to a certain extent (i.e., the sheath 50 retracts a set distance D, such as 4-6 mm), the injection trigger switch 241 is triggered, and the control device 240 sends a drive signal to the drive device 260 according to the injection information to perform automatic injection. At step 460, the user removes the host 200 together with the syringe silo structure 100 from the injection site according to the prompt, and then at step 470, the user removes the syringe silo structure 100 according to the prompt. At step 480, the user covers the protective cover 220 on the host 200 according to the prompt. Finally, at step 490, the user presses the switch key according to the prompt.

[0099] Therefore, through the above-mentioned workflow of the intelligent automatic injector and the user's operation process, it can be understood that the intelligent automatic injector of the present application can intelligently identify drug information, and determine the injection information based on the drug information, so as to intelligently adjust and control the exhaust and injection parameters, realize intelligent exhaust and injection, and can also provide intelligent guidance according to the injection process. In addition, although it is not clearly stated in the above-mentioned workflow, the intelligent automatic injector of the present application can also store injection records and send the injection records to each application platform or remote server to realize the intelligent interconnection and intelligent management of injection records. In addition, the syringe silo structure of the intelligent automatic injector of the present application adopts an integrated cap removal design, a hidden needle design, an injection depth control design and a push-type filling design, which can simplify the operation, improve the experience and precise control, thereby improving the effect of self-injection.

[0100] The present application has been described in detail above in conjunction with specific embodiments. Obviously, the above description and the embodiments shown in the accompanying drawings should be understood as exemplary and do not constitute a limitation to the present application. For those skilled in the art, various modifications or changes can be made to the present application without departing from the spirit of the present application, and these modifications or changes do not depart from the scope of the present application.

Claims

1. A reusable intelligent automatic injector (500), comprising: A host (200), comprising: A housing (210) forming an inner cavity, wherein the inner cavity is configured to detachably receive a syringe cartridge structure (100), wherein the syringe cartridge structure (100) contains a prefilled injection syringe (70); A driving device (260) configured to push a push rod (72) of the prefilled injection syringe (70); an identification device (250) configured to be able to identify drug information on the prefilled injection syringe (70); a storage device (270) storing injection information corresponding to the drug information; and The control device (240) is configured to receive the drug information from the identification device (250), search the storage device (270) for the injection information corresponding to the drug information, and send a drive signal to the drive device (260) based on the injection information to perform automatic injection.

2. The intelligent automatic injector (500) according to claim 1, wherein: The drug information at least includes the drug name and drug dosage, and the injection information at least includes the exhaust volume and injection speed.

3. The intelligent automatic injector (500) according to claim 2, wherein: The control device (240) is further configured to store the injection record in the storage device (270), wherein the injection record at least includes the drug name, injection dosage, injection time and injection speed.

4. The intelligent automatic injector (500) according to claim 3, wherein: The smart automatic injector (500) further comprises a communication device (280) configured to send the injection record to a remote server or receive updated injection information from the remote server.

5. The intelligent automatic injector (500) according to claim 4, wherein: The intelligent automatic injector (500) further comprises a prompt device (290), which is configured to receive instructions from the control device (240) and issue prompt information, wherein the prompt information comprises at least one of audio information, video information, tactile information and text information.

6. The smart automatic injector (500) according to any one of claims 1 to 5, wherein: The identification device (260) includes a reading coil (254), wherein the reading coil (254) is configured to read a radio frequency identification tag (76) on the prefilled injection syringe (70), wherein the radio frequency identification tag (76) contains the drug information.

7. The intelligent automatic injector (500) according to claim 6, wherein: The radio frequency identification tag (76) is arranged perpendicular to the plane where the reading coil (254) is located.

8. The smart automatic injector (500) according to any one of claims 1 to 5, wherein: The driving device (260) comprises: A motor (261) having an output shaft (268); a screw rod (262) coupled to the output shaft (268) and configured to rotate along with the rotation of the output shaft (268); a nut (263) disposed around the screw rod (262) and configured to move linearly as the screw rod (262) rotates; and A push block (264) is fixedly connected to or integrated with the nut (263) and is configured to push the push rod (72) of the prefilled injection syringe (70) to move in a direction parallel to the screw rod (262).

9. The intelligent automatic injector (500) according to claim 8, wherein: The driving device (260) further comprises: An encoder, comprising a code disc (266) and an encoding sensor (267), wherein the code disc (266) is configured to rotate along with the rotation of the output shaft (268), and the encoding sensor (267) is disposed to face the code disc (266) and is configured to sense the rotation of the code disc (266) and output a feedback signal; The control device (240) is configured to receive the feedback signal and output a drive signal to the drive device (260) to adjust the operation of the motor (261).

10. The intelligent automatic injector (500) according to claim 8, wherein: The driving device (260) further comprises a starting position switch (251) and an ending position switch (252); the starting position switch (251) is configured to be triggered and send a starting position signal when the push block (264) reaches the starting position switch (251); and the ending position switch (252) is configured to be triggered and send a ending position signal when the push block (264) reaches the ending position switch (252); and the control device (240) receives the starting position signal and the ending position signal.

11. The intelligent automatic injector (500) according to claim 10, wherein: The distance between the start position switch (251) and the end position switch (252) matches the predetermined moving distance of the push rod (72).

12. The smart automatic injector (500) according to any one of claims 1 to 5, wherein: The intelligent automatic injector (500) further comprises the syringe silo structure (100), wherein the syringe silo structure (100) comprises: A first storage body (10); and A second housing (20) coupled to the first housing (10) such that an internal space (26) defined by the first housing (10) and the second housing (20) can accommodate a barrel (71) of the prefilled injection syringe (70); Wherein, a bin buckle (11) is provided on the first bin body (10) or the second bin body (20), and when the syringe bin structure (100) is inserted into the shell (210) of the main unit (200), the bin buckle (11) can be detachably matched with a slot on the shell (210) of the main unit (200) to fix the syringe bin structure (100).

13. The intelligent automatic injector (500) according to claim 12, wherein: The first bin body (10) is provided with a first thread (13), and the syringe bin structure (100) further comprises: A protective cover (30) having a second thread (33) on its inner surface adapted to the first thread (13), so that the protective cover (30) is threadably connected to the first bin body (10); a protective tube (40) rotatably connected to the protective cover (30) and provided with a first claw (43), wherein the first claw (43) is configured to be able to clamp the protective cap (75) of the prefilled injection syringe (70); When the protective cover (30) moves spirally relative to the first housing (10) and moves away from the first housing (10), the protective cover (30) drives the protective tube (40) to move linearly, and at the same time, the first claw (43) drives the protective cap (75) to move linearly so that the protective cap (75) is separated from the prefilled injection syringe (70).

14. The intelligent automatic injector (500) according to claim 13, wherein: The syringe bin structure (100) further comprises a shield (50) and an elastic element (60), wherein the shield (50) is surrounded by the first bin body (10), and the protective tube (40) is surrounded by the shield (50), and the elastic element (60) is arranged between the second bin body (20) and the shield (50), and the first end of the shield (50) contacts the elastic element (60) and bears the elastic force, so that the shield (50) abuts against the first stopper (15) of the first bin body (10), and the second end of the shield (50) exceeds the end of the needle (74) of the prefilled injection syringe (70).

15. The intelligent automatic injector (500) according to claim 14, wherein: The outer surface of the sheath (50) is provided with a sheath external stop guide portion (57) which contacts the hopper body stop guide portion on the inner surface of the first hopper body (10), and the inner surface of the sheath (50) is provided with a sheath internal stop guide portion (54) which contacts the hopper body stop guide portion (45) on the outer surface of the protective tube (40), so that the protective tube (40) and the sheath (50) are kept from rotating relative to the first hopper body (10).

16. The intelligent automatic injector (500) according to claim 12, wherein: The syringe silo structure (100) further comprises an exhaust sensor for monitoring the exhaust condition in the prefilled injection syringe (70).

17. The intelligent automatic injector (500) according to claim 12, wherein: A second claw (21) is provided at one end of the second housing (20) away from the first housing (10), and the second claw (21) is configured to abut against the barrel (71) of the prefilled injection syringe (70), so that the prefilled injection syringe (70) is clamped in the internal space (26).

18. The smart automatic injector (500) according to any one of claims 1 to 5, wherein: The smart automatic injector (500) includes a connection trigger sensor (233), which is configured to generate a signal allowing the smart automatic injector (500) to continue subsequent actions when the syringe magazine structure (100) is correctly connected to the host (200).

19. The intelligent automatic injector (500) according to claim 14, wherein: The sheath (50) includes a trigger rod (51), and the trigger rod (51) is configured to extend beyond a distance set by the second chamber (20) when the sheath (50) is pushed by a force opposite to the elastic force, and the second end of the sheath (50) retracts to the set distance.

20. The intelligent automatic injector (500) according to claim 19, wherein: The intelligent automatic injector (500) also includes an injection trigger switch (241), which is configured to be triggered by the trigger rod (51) only when the sheath (50) is pushed by a force opposite to the elastic force and the trigger rod (51) extends beyond the set distance of the second chamber (20), thereby allowing the drive device (260) to push the push rod (72).

Images