Drug delivery device

Abstract

According to the medicine conveying structure, after the first connecting piece and the second connecting piece are buckled in pairs, the first connecting piece and the second connecting piece are fixed through the fixing column, and therefore the two short bottom faces of the first connecting piece and the second connecting piece are connected and then form the containing space with the two long bottom faces to be used for containing medicine. In the rotating process of the medicine conveying structure, the medicine in the containing space can be driven to move, and then medicine conveying is achieved. In addition, a drug delivery device is also provided.

Description

[0001] This application is a divisional of a Chinese application filed on December 24, 2019, with application number 2019113473434 and invention name “Drug delivery structure and device thereof”. Technical Field

[0002] The present invention relates to drug delivery, and in particular to a drug delivery structure and device with simple structure and capable of single-pronged management. Background Art

[0003] With the development of modernization, medical electronic equipment is becoming more and more popular, and smart hospitals are becoming more and more sophisticated in drug control. Traditional drug management is manually registered by drug administrators or medical staff to ensure that such drugs are managed and stored in accordance with regulations. However, manual registration will inevitably lead to omissions, errors, or loss of drugs, making it difficult to ensure drug safety, and drug management efficiency is low. Summary of the invention

[0004] Based on this, it is necessary to provide a drug delivery structure with a simple structure and capable of single-pronged management.

[0005] A drug delivery structure includes a fixed column, a plurality of first connecting members, and a plurality of second connecting members;

[0006] The first connecting member is generally L-shaped, and the two long sides of the short bottom surface of the first connecting member are respectively provided with first connecting columns;

[0007] The second connecting member is generally L-shaped, and two long sides of the short bottom surface of the second connecting member are respectively provided with second connecting posts 203 corresponding to the first connecting posts;

[0008] After a plurality of the first connecting posts and a plurality of the second connecting posts 203 are buckled in pairs, they are fixedly connected by the fixing posts to form the drug delivery structure.

[0009] In one embodiment, a third connecting member is further included, and the first connecting column and the second connecting column 203 are respectively provided on the two long sides of the third connecting member, the first connecting column of the third connecting member is buckled with the second connecting column 203 of the second connecting member and then fixedly connected by the fixing column, and the second connecting column 203 of the third connecting member is buckled with the first connecting column of the first connecting member and then fixedly connected by the fixing column.

[0010] In one embodiment, the first connecting column includes a first circular connecting column and a first semicircular connecting column that are intermittently arranged, and the first circular connecting column and the first semicircular connecting column are on an axis; the second connecting column 203 includes a second circular connecting column and a second semicircular connecting column that are intermittently arranged, and the second circular connecting column and the second semicircular connecting column are on an axis.

[0011] In one of the embodiments, a light blocking sheet is further included, and the light blocking sheet is vertically arranged on the short bottom surface of the first connecting member or the short bottom surface of the second connecting member.

[0012] In addition, there is a need to provide a drug delivery device that is simple in structure and capable of single administration.

[0013] A drug delivery device, comprising the above-mentioned drug delivery structure, a source drive module for providing driving force, a main drive module and a housing;

[0014] The driving force of the source driving module is transmitted to the main driving module; the main driving module is used to drive the drug delivery structure to rotate around the main driving module; when the drug delivery structure rotates, the drug placed in the drug delivery structure is driven to move; the outer shell is used to accommodate the source driving module, the main driving module and the drug delivery structure; the outer shell is also provided with a drug outlet.

[0015] In one embodiment, the source driving module includes a motor and a first rotating wheel. The motor is fixedly connected to the first rotating wheel. When the motor rotates, the first rotating wheel is driven to rotate.

[0016] In one of the embodiments, it further includes a transmission module connected to the source driving module and the active driving module respectively;

[0017] The transmission module is used to transmit the driving force of the source driving module to the main driving module.

[0018] In one embodiment, the transmission module includes a second rotating wheel, and the second rotating wheel is connected to the source driving module. When the source driving module rotates, the second rotating wheel is driven to rotate.

[0019] In one embodiment, the main driving module includes a third rotating wheel, a first rotating shaft and a first sprocket;

[0020] The first rotating shaft is inserted into the first sprocket, one free end of the first rotating shaft is fixedly connected to the axis of the third rotating wheel, and the other free end is accommodated in the outer shell; when the third rotating wheel rotates, it drives the first rotating shaft to rotate, and then drives the first sprocket to rotate.

[0021] In one embodiment, a slave driving module is further included, and the slave driving module is arranged opposite to the main driving module, so that the transmission module rotates around the main driving module and the slave driving module at the same time.

[0022] In one embodiment, the slave drive module includes a second rotating shaft and a second sprocket;

[0023] The second rotating shaft is inserted into the second sprocket, one free end of the second rotating shaft is movably connected to the axis of the fourth rotating wheel, and the other free end is accommodated in the outer shell; when the fourth rotating wheel rotates, it drives the first sprocket to rotate, and then drives the first rotating shaft to rotate.

[0024] In one embodiment, the shell includes a receiving groove and a top cover; the receiving groove is used to receive the source drive module, the main drive module and the drug delivery structure, and the receiving groove is also provided with the drug outlet; one side of the receiving groove opening is movably connected to the top cover.

[0025] In one embodiment, it further includes a first bottom cover and a second bottom cover, wherein the first bottom cover and the second bottom cover respectively cover two side surfaces formed when the drug delivery structure rotates around the main driving module.

[0026] The drug delivery structure is fixed by the fixing column after the first connecting member and the second connecting member are buckled in pairs, so that the two short bottom surfaces of the first connecting member and the second connecting member are connected to form a receiving space with their two long bottom surfaces for receiving the drug. During the rotation of the drug delivery structure, the drug in the receiving space can be driven to move, thereby realizing drug delivery.

[0027] The above-mentioned drug delivery device provides driving force through the source drive module to rotate the main drive module, and then the main drive module drives the drug delivery structure to move, and the drug placed in the drug delivery structure can follow the movement of the drug delivery structure. The use of a shell to accommodate the source drive module, the main drive module and the drug delivery structure can prevent the drug from scattering during the delivery process, thereby achieving drug delivery. Compared with traditional drug delivery devices, it reduces components and thus reduces product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of drug delivery structure;

[0029] Figure 2 is a structural schematic diagram of a first connecting member;

[0030] Figure 3 is a schematic structural diagram of a second connecting member;

[0031] Figure 4 is a schematic structural diagram of a third connecting member;

[0032] Figure 5 is a block diagram of a drug delivery device;

[0033] Figure 6 A schematic diagram of the structure of the main drive module, the transmission module, and the source drive module;

[0034] Figure 7 is a structural diagram of a slave drive module;

[0035] Figure 8 One of the structural schematic diagrams of the drug delivery device;

[0036] Fig. 9 This is the second structural schematic diagram of the drug delivery device. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The various technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-described embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] like Figure 1 Schematic diagram of drug delivery structure.

[0041] A drug delivery structure 200 includes a fixing column (not shown), a plurality of first connecting members 10 and a plurality of second connecting members 20;

[0042] The first connecting member 10 is generally L-shaped, and the two long sides of the short bottom surface of the first connecting member 10 are respectively provided with first connecting columns 103;

[0043] The second connecting member 20 is generally L-shaped, and two long sides of the short bottom surface of the second connecting member 20 are respectively provided with second connecting posts corresponding to the first connecting posts 103;

[0044] After a plurality of the first connecting posts 103 and a plurality of the second connecting posts are buckled in pairs, they are fixedly connected by the fixing posts (not shown) to form the drug delivery structure 200 .

[0045] Please combine Figure 2 The first connecting member 10 includes a first long bottom surface 101, a first short bottom surface 102 and a first connecting column 103. The first long bottom surface 101 and the first short bottom surface 102 are substantially vertically arranged, the first connecting column 103 is arranged on the edge formed by the intersection of the first long bottom surface 101 and the first short bottom surface 102, and the first connecting column 103 is arranged in parallel on the other edge of the first short bottom surface 102. That is, two parallel first connecting columns 103 are arranged on two opposite long sides of the first short bottom surface 102.

[0046] Please combine Figure 3 The second connecting member 20 includes a second long bottom surface 201, a second short bottom surface 202 and a second connecting column. The second long bottom surface 201 and the second short bottom surface 202 are substantially vertically arranged, the second connecting column is arranged on the edge formed by the intersection of the second long bottom surface 201 and the second short bottom surface 202, and the second connecting column is arranged in parallel on the other edge of the second short bottom surface 202. That is, two parallel second connecting columns are arranged on two opposite long sides of the second short bottom surface 202.

[0047] The first long bottom surface 101 of the first connecting member 10 is fitted and connected with the second long bottom surface 201 of the second connecting member 20, and the first short bottom surface 102 of the first connecting member 10 is in contact with the second short bottom surface 202 of the second connecting member 20. Therefore, the first connecting column 103 at the edge of the first long bottom surface 101 can be buckled with the second connecting column at the edge of the second long bottom surface 201, and the first connecting column 103 at the edge of the first short bottom surface 102 can be buckled with the second connecting column at the edge of the second short bottom surface 202. The first connecting column 103 and the second connecting column are fixed by a fixing column (not shown), thereby realizing the fixed connection between the first connecting member 10 and the second connecting member 20. After a plurality of first connecting members 10 and the second connecting members 20 are buckled, a drug delivery structure 200 can be formed.

[0048] The first connecting post 103 includes a first circular connecting post 1031 and a first semicircular connecting post 1032. The first circular connecting post 1031 is disposed at the edges of the two long sides of the first short bottom surface 102, and the first semicircular connecting post 1032 is disposed at the middle position of the two long sides of the first short bottom surface 102.

[0049] The second connecting column includes a second circular connecting column 2031 and a second semicircular connecting column 2032. The second circular connecting column 2031 and the second semicircular connecting column 2032 are set at positions corresponding to the positions of the first circular connecting column 1031 and the first semicircular connecting column 1032, that is, the first connecting column 103 can be exactly engaged with the second connecting column.

[0050] The first circular connecting column 1031, the first semicircular connecting column 1032, the second circular connecting column 2031, and the second semicircular connecting column 2032 are all hollow, which enables a fixing column (not marked) to pass through the first circular connecting column 1031, the first semicircular connecting column 1032, the second circular connecting column 2031, and the second semicircular connecting column 2032, thereby achieving the fixation of the first connecting member 10 and the second connecting member 20.

[0051] The length of the drug delivery structure 200 can be set according to the actual needs of the user, and therefore, the number of the first connecting member 10 and the second connecting member 20 can be freely set according to the actual needs of the user.

[0052] In this embodiment, the radial cross-section of the drug delivery structure 200 is substantially elliptical. Therefore, at the two top ends of the ellipse, the first connecting member 10 and the second connecting member 20 will be opened due to the tension.

[0053] A U-shaped cutout is provided at one edge of the first long bottom surface 101 away from the first short bottom surface 102. A U-shaped cutout is provided at one edge of the second long bottom surface 201 away from the second short bottom surface 202 that is completely consistent with the U-shaped cutout of the first long bottom surface 101.

[0054] When the drug delivery structure 200 needs to deliver smaller-volume drugs (such as ampoules), washers can be set along all U-shaped cutouts to reduce the storage space formed by the first connector 10 and the second connector 20. When delivering larger-volume drugs (such as vials), washers are removed. This arrangement enables the drug delivery structure 200 to be applicable to drugs of various volumes, and when delivering smaller-volume drugs, it is avoided that the storage space is too large and multiple drugs are placed by mistake.

[0055] Please combine Figure 4In this embodiment, the drug delivery structure 200 further includes a third connecting member 30, and the two long sides of the third connecting member 30 are respectively provided with the first connecting column 103 and the second connecting column, the first connecting column 103 of the third connecting member 30 is buckled with the second connecting column of the second connecting member 20 and then fixedly connected through the fixing column (not marked), and the second connecting column of the third connecting member 30 is buckled with the first connecting column 103 of the first connecting member 10 and then fixedly connected through the fixing column (not marked).

[0056] The third connecting member 30 is in the form of a sheet and includes a third long bottom surface 301 and a first connecting column 103 and a second connecting column disposed on two opposite long sides of the third long bottom surface 301. The third connecting member 30 is provided to widen the receiving space formed by the first connecting member 10 and the second connecting member 20, so as to facilitate the control of larger volumes of medicines.

[0057] In this embodiment, the first connecting column 103 includes a first circular connecting column 1031 and a first semicircular connecting column 1032 which are intermittently arranged, and the first circular connecting column 1031 and the first semicircular connecting column 1032 are on the same axis; the second connecting column includes a second circular connecting column 2031 and a second semicircular connecting column 2032 which are intermittently arranged, and the second circular connecting column 2031 and the second semicircular connecting column 2032 are on the same axis.

[0058] In other embodiments, the first connecting post 103 may include only one first circular connecting post 1031, and the second connecting post may include only one second circular connecting post 2031. That is, the first connecting post 103 and the second connecting post can be fixed by a fixing post (not shown).

[0059] Based on all the above embodiments, the radial diameters of the first circular connecting column 1031, the first semicircular connecting column 1032, the second circular connecting column 2031, and the second semicircular connecting column 2032 are equal. The widths of the first short bottom surface 102, the second short bottom surface 202, and the third long bottom surface 301 are equal.

[0060] Please combine Figure 1 In this embodiment, the drug delivery structure 200 further includes a light shielding sheet 204 , which is vertically disposed on the short bottom surface of the first connecting member 10 or the short bottom surface of the second connecting member 20 .

[0061] Please combine Figure 2 In this embodiment, the light shielding sheet 204 is disposed on the second short bottom surface 202 of the second connecting member 20 and is perpendicular to the second short bottom surface 202 of the second connecting member 20. The light shielding sheet 204 is used to shield the light sent by the laser counter, and each shielding is counted once.

[0062] The drug delivery structure 200 is fixed by a fixing column (not shown) after the first connecting member 10 and the second connecting member 20 are buckled in pairs. Therefore, the two short bottom surfaces of the first connecting member 10 and the second connecting member 20 are connected to form a receiving space with their two long bottom surfaces for receiving drugs. Only one drug can be placed in the receiving space formed by two adjacent first connecting members 10 and the second connecting member 20. During the rotation of the drug delivery structure 200, the drugs in the receiving space can be driven to move, thereby achieving drug delivery.

[0063] If the volume of the medicine is large, the third connecting member 30 is added to expand the receiving space, that is, the first connecting member 10, the second connecting member 20, and the third connecting member 30 together form a receiving space for placing the medicine. The thickness of the first connecting member 10, the second connecting member 20, and the third connecting member 30 and the width of each bottom surface can be adjusted according to the size of the medicine to be transported.

[0064] If the volume of the medicine is small, only the first connector 10 and the second connector 20 are used to form a receiving space for placing the medicine. If the formed receiving space can hold two medicines at the same time, a gasket needs to be provided at the opening of the first connector 10 and the second connector 20 to reduce the receiving space and prevent the user from placing two medicines in one receiving space at the same time.

[0065] like Figure 5 Shown is a module diagram of a drug delivery device.

[0066] A drug delivery device, comprising the above-mentioned drug delivery structure 200, a source driving module 502 for providing driving force, a main driving module 503 and a housing 501;

[0067] The driving force of the source driving module 502 is transmitted to the main driving module 503; the main driving module 503 is used to drive the drug delivery structure 200 to rotate around the main driving module 503; when the drug delivery structure 200 rotates, it drives the drug placed in the drug delivery structure 200 to move; the shell 501 is used to accommodate the source driving module 502, the main driving module 503 and the drug delivery structure 200; the shell 501 is also provided with a drug outlet.

[0068] In this embodiment, the source driving module 502 includes a motor 5021 and a first rotating wheel 5022 . The motor 5021 is fixedly connected to the first rotating wheel 5022 . When the motor 5021 rotates, the first rotating wheel 5022 is driven to rotate.

[0069] The rotating shaft of the motor 5021 is fixedly connected to the axis of the first rotating wheel 5022. When the motor 5021 rotates, it drives the first rotating wheel 5022 to rotate. Therefore, the first rotating wheel 5022 drives the other rotating wheels connected thereto to rotate through gear transmission.

[0070] The main driving module 503 includes a third rotating wheel 5032, a first rotating shaft 5033 and a first sprocket 5031;

[0071] Please combine Figure 6 The first rotating shaft 5033 is inserted into the first sprocket 5031, one free end of the first rotating shaft 5033 is fixedly connected to the axis of the third rotating wheel 5032, and the other free end is received in the housing 501; when the third rotating wheel 5032 rotates, the first rotating shaft 5033 is driven to rotate, and then the first sprocket 5031 is driven to rotate.

[0072] In the case where the transmission module 505 is not used, the first rotating wheel 5022 is directly gear-engaged with the third rotating wheel 5032, and when the first rotating wheel 5022 rotates, the third rotating wheel 5032 can be driven to rotate. The axis of the third rotating wheel 5032 is fixedly connected to the first rotating shaft 5033, and at the same time, the first rotating shaft 5033 is fixedly connected to the first sprocket 5031. Therefore, when the third rotating wheel 5032 rotates, the first rotating shaft 5033 and the first sprocket 5031 will be driven to rotate simultaneously.

[0073] The tooth groove and gear arrangement of the first sprocket 5031 match the first connecting column 103, the first short bottom surface 102, the second connecting column, and the second short bottom surface 202 in the drug delivery structure 200. That is, the first connecting column 103 and the second connecting column fall into the pool groove of the first sprocket 5031, and the gear teeth of the first sprocket 5031 fall into the first short bottom surface 102 and the second short bottom surface 202. If the third connecting member 30 is added to the drug delivery structure 200, the gear teeth of the first sprocket 5031 will fall into the first short bottom surface 102 and the second short bottom surface 202, and the third long bottom surface 301 respectively.

[0074] In this embodiment, the first rotating shaft 5033 is cut along the radial direction, so that no relative displacement occurs between the first rotating shaft 5033 and the first sprocket 5031 .

[0075] Please combine Figure 6 In this embodiment, the drug delivery device further comprises a transmission module 505 respectively connected to the source driving module 502 and the active driving module;

[0076] The transmission module 505 is used to transmit the driving force of the source driving module 502 to the main driving module 503 .

[0077] The transmission module 505 includes a second rotating wheel 505 , and the second rotating wheel 505 is connected to the source driving module 502 . When the source driving module 502 rotates, the second rotating wheel 505 is driven to rotate.

[0078] Please combine Figure 7 The drug delivery device further includes a slave driving module 506 , which is disposed opposite to the main driving module 503 , so that the delivery module rotates around the main driving module 503 and the slave driving module 506 at the same time.

[0079] The slave driving module 506 includes a second rotating shaft 5063 and a second sprocket 5061;

[0080] The second rotating shaft 5063 passes through the second sprocket 5061 , and a free end of the second rotating shaft 5063 is received in the housing 501 ; when the first sprocket 5031 rotates, the first rotating shaft 5033 is driven to rotate.

[0081] In this embodiment, the slave drive module 506 further includes a sleeve 5062, a spring member 5064 and a fixing member 5065. The sleeve 5062 is respectively sleeved on the two free ends of the second rotating shaft 5063, and the free end of the sleeve 5062 extending in the radial direction is connected to the fixing member 5065. The spring member 5064 is sleeved on the free end of the sleeve 5062. When a pulling force is generated in the radial direction during the rotation of the slave drive module 506, the sleeve 5062 and the spring member 5064 are deformed to offset the pulling force. When a pressure is generated in the radial direction during the rotation of the slave drive module 506, the sleeve 5062 and the spring member 5064 are deformed to offset the pulling force. Therefore, the drug delivery structure 200 can be tightly rotated around the main drive module 503 and the slave drive module 506.

[0082] Please combine Figure 8 .

[0083] The source drive module 502, the transmission module 505 and the main drive module 503 are sequentially arranged in the hollow position formed by the drug delivery structure 200, wherein the first sprocket 5031 of the main drive module 503 is in contact with the drug delivery structure 200. Since the arrangement of the first connected tooth grooves and the gear teeth is completely consistent with the first connecting column 103, the second connecting column, the first short bottom surface 102 and the second short bottom surface 202 of the drug delivery structure 200, when the main drive module 503 rotates, the drug delivery structure 200 can be driven to rotate around the main drive module 503.

[0084] In order to make the drug delivery structure 200 rotate more stably, a slave driving module 506 is provided at the other end of the drug delivery structure 200. The second sprocket 5061 of the slave driving module 506 is structurally identical to the first sprocket 5031. Therefore, the second sprocket 5061 can also drive the drug delivery structure 200 to rotate around the main driving module 503.

[0085] Please combine Figure 8 and Fig. 9 The housing 501 includes a receiving groove and a top cover; the receiving groove is used to receive the source driving module 502, the main driving module 503 and the drug delivery structure 200, and the receiving groove is also provided with the drug outlet; one side of the receiving groove opening is movably connected to the top cover.

[0086] The drug delivery device also includes a first bottom cover (not shown) and a second bottom cover (not shown), and the first bottom cover (not shown) and the second bottom cover (not shown) respectively cover the two side surfaces formed when the drug delivery structure 200 rotates around the main driving module 503.

[0087] Based on all the above embodiments, the source drive module 502 provides driving force to drive the transmission module 505, so that the transmission module 505 transmits the driving force to the main drive module 503, so that the main drive module 503 can drive the drug delivery structure 200 to rotate around the main drive module 503. At the same time, the slave drive module 506 is set so that the drug delivery structure 200 can rotate around the main drive module 503 and the slave drive module 506 more stably. After the shell 501 accommodates the drug delivery structure 200, the source drive module 502, the transmission module 505, the main drive module 503, and the slave drive module 506, the drug is placed in the receiving space of the drug delivery structure 200, and each receiving space can only store one medicine. Therefore, during the rotation of the drug delivery structure 200, the drug will be driven to move together. When it is necessary to take the medicine, the drug delivery structure 200 is controlled to move to a specific position, and the medicine is moved to the opening of the shell 501, and then the medicine can automatically fall, realizing the function of taking a single medicine.

[0088] In other embodiments, the transmission module and / or the slave drive module 506 may not be used. The function of controlling a single drug can also be achieved.

[0089] The above-mentioned drug delivery device can be used to control a single drug. A drug is placed in each receiving space of the drug delivery structure 200, and the size of the receiving space can be adjusted according to the volume of the drug so that it can just accommodate a single drug. Compared with the traditional single drug control structure, the structure of the above-mentioned drug delivery device is simpler, and the receiving space can be adjusted according to the volume of the controlled drug. There is no need to change the main structure. Adding or reducing gaskets on the original basis can achieve compatibility with drugs of various specifications.

[0090] The above-mentioned drug delivery device provides driving force through the source driving module 502 to rotate the main driving module 503, and then the main driving module 503 drives the drug delivery structure 200 to move, and the drug placed in the drug delivery structure 200 can move with the drug delivery structure 200. The shell 501 is used to accommodate the source driving module 502, the main driving module 503 and the drug delivery structure 200, which can prevent the drug from scattering during the delivery process, thereby realizing drug delivery. Compared with traditional drug delivery devices, fewer components are used, thereby reducing product costs.

[0091] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A drug delivery device, characterized in that: include: A plurality of first connecting members, each of which comprises a first long bottom surface and a first short bottom surface connected to each other; A plurality of second connecting members, each of which comprises a second long bottom surface and a second short bottom surface connected to each other; A plurality of the first connecting members and a plurality of the second connecting members are buckled in pairs to form a drug delivery structure, wherein the first long bottom surface is fitted and connected with the second long bottom surface, and the first short bottom surface is abutted with the second short bottom surface, so that the first connecting member and the first short bottom surface, the second short bottom surface, the first long bottom surface and the second long bottom surface of the second connecting member form a receiving space; A main driving module, used for driving the drug delivery structure to rotate around the main driving module; The slave driving module is arranged opposite to the main driving module so that the drug delivery structure rotates around the main driving module and the slave driving module at the same time. When the slave driving module rotates, the slave driving module can be deformed.

2. The drug delivery device according to claim 1, characterized in that The slave drive module includes a second rotating shaft, a sleeve, a spring member and a fixing member. The sleeve is sleeved on the two free ends of the second rotating shaft. The free end of the sleeve extending radially is connected to the fixing member. The spring member is sleeved on the free end of the sleeve. When radial pressure is generated during the rotation of the slave drive module, the sleeve and the spring member are deformed to offset the pulling force, so that the drug delivery structure rotates tightly around the main drive module and the slave drive module.

3. The drug delivery device according to claim 2, characterized in that The radial cross-section of the drug delivery structure is substantially elliptical, and when pressure is generated in the radial direction during the rotation of the slave driving module, the first connecting member and the second connecting member can be opened at both top ends.

4. The drug delivery device according to claim 2 or 3, characterized in that: It also includes a fixing column, wherein the two long sides of the first short bottom surface of the first connecting member are respectively provided with a first connecting column, and the two long sides of the second short bottom surface of the second connecting member are respectively provided with a second connecting column corresponding to the first connecting column, and after a plurality of the first connecting columns and a plurality of the second connecting columns are buckled in pairs, they are fixedly connected by the fixing column to form the drug delivery structure.

5. The drug delivery device according to claim 4, characterized in that The main drive module includes a first sprocket, the tooth grooves and teeth of the first sprocket match the first connecting column, the first short bottom surface, the second connecting column, and the second short bottom surface, wherein the first connecting column and the second connecting column fall into the tooth grooves of the first sprocket, and the teeth of the first sprocket fall into the first short bottom surface and the second short bottom surface.

6. The drug delivery device according to claim 5, characterized in that The slave drive module includes a second sprocket, the second rotating shaft is inserted into the second sprocket, a free end of the second rotating shaft is movably connected to the axis of the second sprocket, and when the second sprocket rotates, it drives the first sprocket to rotate, and further drives the first rotating shaft to rotate.

7. The drug delivery device according to claim 4, characterized in that The first connecting column and the second connecting column are respectively provided on two long sides of the third connecting member, the first connecting column of the third connecting member is buckled with the second connecting column of the second connecting member and then fixedly connected by the fixing column, and the second connecting column of the third connecting member is buckled with the first connecting column of the first connecting member and then fixedly connected by the fixing column.

8. The drug delivery device according to claim 7, characterized in that The first connecting column includes a first circular connecting column and a first semicircular connecting column which are intermittently arranged, and the first circular connecting column and the first semicircular connecting column are on an axis; the second connecting column includes a second circular connecting column and a second semicircular connecting column which are intermittently arranged, and the second circular connecting column and the second semicircular connecting column are on an axis.

9. The drug delivery device according to claim 1, wherein: The first connecting member is generally L-shaped, and the first long bottom surface and the first short bottom surface are vertically arranged; the second connecting member is generally L-shaped, and the second long bottom surface and the second short bottom surface are vertically arranged.

10. The drug delivery device according to claim 1, wherein: It also includes a light shielding sheet, which is vertically arranged on the first short bottom surface of the first connecting member or the second short bottom surface of the second connecting member.

11. The drug delivery device according to claim 1, characterized in that It also includes a source drive module and a shell, wherein the driving force of the source drive module is transmitted to the main drive module, and the shell is used to accommodate the source drive module, the main drive module, the slave drive module and the drug delivery structure; the shell is also provided with a drug outlet.

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