WO2023005901A1

WO2023005901A1 - Injection apparatus and injection system

Info

Publication number: WO2023005901A1
Application number: PCT/CN2022/107789
Authority: WO
Inventors: 陶言聪; 胡贤龙
Original assignee: 武汉联影智融医疗科技有限公司
Priority date: 2021-07-27
Filing date: 2022-07-26
Publication date: 2023-02-02

Abstract

An injection apparatus (100) and an injection system. The injection apparatus (100) comprises a first liquid storage assembly (110), a second liquid storage assembly (120), and an output control assembly (130). The output control assembly (130) controls the output of an injection liquid from one of the first liquid storage assembly (110) and the second liquid storage assembly (120) in a switching manner.

Description

A kind of injection equipment and injection system

cross reference

This application claims priority from Chinese application number 202110853190.1 filed on July 27, 2021, and priority from Chinese application number 202111662183.X filed on December 30, 2021, the entire contents of which are incorporated herein by reference .

technical field

This specification relates to the technical field of medical devices, in particular to an injection device and an injection system.

Background technique

The injection device may have multiple liquid storage components, and different injection fluids may be stored in different liquid storage components. The injection device may need to select one of the liquid storage components for infusion according to the physical condition of the patient. For example, existing insulin pumps need to continuously inject insulin into the human body for 24 hours to achieve the effect of lowering blood sugar. Insulin pumps will inevitably experience hypoglycemia during the injection of insulin. At this time, glucagon is needed to raise blood sugar.

How to realize the output switching between different liquid storage components is a technical problem to be solved in this field.

Contents of the invention

One of the embodiments of this specification provides an injection device, wherein the injection device includes a first liquid storage component, a second liquid storage component, and an output control component; the output control component switches and controls the first liquid storage component and the The injection solution in one of the second liquid storage components is output.

In some embodiments, the injection device includes a liquid outlet, and the output control component switches and controls one of the first liquid storage component and the second liquid storage component to communicate with the liquid outlet.

In some embodiments, the injection device includes: the output control assembly includes an adjustment assembly; when at least part of the adjustment assembly moves, it can switch and control the communication between the first liquid storage assembly or the second liquid storage assembly. The liquid outlet.

In some embodiments, the adjustment assembly includes an adjustment pipeline and moving parts located in the adjustment pipeline, the adjustment pipeline communicates with the liquid outlet, the adjustment pipeline includes a first input port and a second input port, The first input port communicates with the first liquid storage component, the second input port communicates with the second liquid storage component, and the moving part can control the first input port and the second liquid storage component. One of the two input ports communicates with the liquid outlet.

In some embodiments, the moving part includes a sealing plug and a first driving member, the sealing plug is located in the regulating pipeline, the sealing plug is provided with a communication channel, and the first driving member drives the sealing plug moving in the regulating pipe, so that the communication channel communicates with one of the first input port and the second input port to the liquid outlet.

In some embodiments, the adjustment assembly further includes a first transfer pipe and a second transfer pipe, the first transfer pipe connects the first input port and the liquid storage chamber of the first liquid storage assembly, and the second The transfer pipe connects the second input port and the liquid storage bin of the second liquid storage assembly.

In some embodiments, at least one of the first liquid storage assembly and the second liquid storage assembly includes a liquid storage housing and a movement plug located in the liquid storage housing, the movement plug and The liquid storage housing constitutes the liquid storage bin; when the moving plug moves, the injection liquid in the liquid storage bin can be output.

In some embodiments, the liquid storage housing includes a bottle mouth, a bottle body, and a sealing cap covering the bottle mouth, the movement plug is arranged on the end of the bottle body away from the bottle mouth, and the The transfer tube extends through the sealing cover of the corresponding liquid storage assembly into the liquid storage bin of the corresponding liquid storage assembly.

In some embodiments, at least one of the first liquid storage assembly and the second liquid storage assembly includes a push rod, and the push rod of the liquid storage assembly is connected to the corresponding movement plug of the liquid storage assembly. Abut.

In some embodiments, the injection device further includes a fixing assembly and an installation housing, the installation housing forms an installation chamber, and the liquid outlet is arranged on the installation housing and communicates with the installation chamber; the adjustment The assembly is arranged in the installation cavity; the fixing assembly is arranged in the installation cavity, and is used to fix the liquid storage shell of the first liquid storage assembly and/or the liquid storage shell of the second liquid storage assembly body.

In some embodiments, the fixing assembly includes a first fixing seat, the first fixing seat has a first fixing groove, and the first fixing groove is used for installing the bottle of the liquid storage housing of the first liquid storage assembly and/or, the fixing assembly includes a second fixing seat, the second fixing seat has a second fixing groove, and the second fixing groove is used for installing the liquid storage housing of the second liquid storage assembly bottle mouth.

In some embodiments, the fixing assembly further includes a first fixing buckle, the first fixing buckle is arranged on the first fixing seat, and is arranged corresponding to the first fixing groove, and the first fixing buckle The buckle can abut against the outer wall of the bottle mouth of the liquid storage housing of the first liquid storage assembly extending into the first fixing groove; and/or, the fixing assembly further includes a second fixing buckle, so The second fixing buckle is arranged on the second fixing seat and corresponding to the second fixing groove, and the second fixing buckle can be connected with the first liquid storage extending into the second fixing groove. The outer wall of the bottle mouth of the liquid storage housing of the assembly abuts.

In some embodiments, the injection device includes a first driving member and a second driving member, and the first driving member and the second driving member are respectively used to drive the first liquid storage assembly and the second liquid storage assembly. The injection liquid in the liquid storage component is output.

In some embodiments, the injection device includes a third driver, the output control assembly includes a drive switching mechanism, and the drive switching mechanism is used to switch and control the power output of the third driver to drive the first reservoir. The injection solution in one of the liquid storage components of the liquid component and the second liquid storage component is output.

In some embodiments, the drive switching mechanism includes a moving drive member and a transmission mechanism, the moving drive member drives the transmission mechanism to move, and the transmission mechanism transfers the power output switching of the third drive member to the One of the first liquid storage component and the second liquid storage component.

In some embodiments, both the first liquid storage assembly and the second liquid storage assembly include a plunger unit for pushing out the injection, and the plunger unit is arranged on the transmission unit to push the first liquid The power output of the three driving parts is transmitted to the plunger unit of the first liquid storage assembly or the plunger unit of the second liquid storage assembly, and the moving driving part drives the transmission mechanism to move linearly, so that the transmission The mechanism is in driving connection with the plunger unit of one of the first liquid storage assembly and the second liquid storage assembly.

In some embodiments, it includes: the first liquid storage assembly and the second liquid storage assembly further include a linkage, the linkage is provided on the plunger unit; the transmission mechanism includes a transmission rod, the An actuator is provided on the transmission rod, and the moving driving member drives the transmission rod to move linearly, so as to drive the actuator to switch between the linkage member of the first liquid storage assembly and one of the second liquid storage assembly. The linkages cooperate with each other to drive the corresponding plunger unit to move.

In some embodiments, the moving driving part includes an electromagnet, and the end of the transmission rod close to the electromagnet is provided with a permanent magnet with polarity. Drive the transmission mechanism to move linearly towards or away from the electromagnet.

In some embodiments, the moving driving part includes memory metal, the transmission mechanism is connected with the memory metal, and the memory metal deforms after electrification to drive the transmission rod to move linearly.

In some embodiments, the moving driver includes a linear driver, the linear driver includes a telescopic rod, the transmission rod is connected to the telescopic rod, and the telescopic rod telescopically drives the transmission mechanism to move linearly.

In some embodiments, the plunger unit includes a plunger and a rotating rod, the plunger is screwed to the rotating rod, the third driving member drives the transmission rod and the actuating member to rotate, so The actuating member drives the rotating rod to rotate through the linkage member, so as to move the plunger.

In some embodiments, the plunger is a cylindrical structure, the rotating rod is arranged in the inner cavity of the plunger; the inner wall of the cylindrical structure is provided with internal threads, and the rotating rod is provided with an outer thread.

In some embodiments, the third driving member includes a motor, and an output shaft of the motor is in transmission connection with the transmission rod.

In some embodiments, the output shaft of the motor and the transmission rod are geared for transmission.

In some embodiments, the output shaft of the motor is arranged vertically or parallel to the transmission rod, the output shaft of the motor is provided with a first gear, the transmission rod is provided with a second gear, and the first gear is provided on the transmission rod. A gear meshes with the second gear to transmit the rotational torque of the output shaft of the motor to the transmission rod.

In some embodiments, the motor and the transmission rod are arranged side by side along the axial direction of the transmission rod, the output shaft of the motor is fixedly connected to the transmission rod, and the motor can move with the transmission rod Move linearly.

In some embodiments, the motor and the transmission rod are arranged side by side along the axis of the transmission rod, a connecting sleeve is fixed on the output shaft of the motor, and the end of the transmission rod is inserted into the connecting sleeve. and can move linearly in the connecting sleeve, and a circumferential limiting structure is provided between the connecting sleeve and the transmission rod.

In some embodiments, the linkage includes a fourth gear, and the actuator includes a fifth gear engageable with the fourth gear.

In some embodiments, the transmission rod includes two fifth gears, and through the movement of the transmission rod, one fifth gear meshes with one fourth gear, and the other fifth gear meshes with another fourth gear. Gears separate.

In some embodiments, the first liquid storage assembly and the second liquid storage assembly further include a cartridge for storing the injection, and one end of the plunger unit can be inserted into the cartridge. The movement in the cartridge is used to control the injection of the injection in the cartridge, and the other end of the plunger unit is connected to the linkage; and the sleeve are arranged side by side in the storage bin along the axial direction of the storage bin, one end of the plunger unit protrudes into the drug storage bin and can move in the drug storage bin, so The sleeve limits the position of the plunger unit.

In some embodiments, the injection device further includes a limiting part that limits the linear movement stroke of the transmission mechanism.

One of the embodiments of this specification also provides an injection system, which uses the injection device, blood glucose monitoring device and controller described in any of the above technical solutions, and the injection liquid stored in the first liquid storage component of the injection device includes insulin , the injection stored in the second liquid storage component includes glucagon; the controller is used to control the output control component, so that the output control component switches and controls the insulin in the first liquid storage component and the second liquid storage component. Glucagon output stored in one of the two liquid storage components; the controller is configured to: control the blood glucose monitoring device to obtain the blood glucose value of the subject to be injected; control the output control component based on the blood glucose value , so that the output control component switches to control the output of the injection solution in one of the first liquid storage component and the second liquid storage component.

In some embodiments, the control of the output control component based on the blood glucose value makes the output control component switch and control the output of the injection in one of the first liquid storage component and the second liquid storage component , including: determining the output volume of the injection in the first liquid storage assembly based on the blood glucose value; and/or determining the output volume of the injection in the second liquid storage assembly based on the blood glucose value output.

In some embodiments, the output control component is controlled based on the blood glucose level, so that the output control component switches and controls the injection solution in one of the first liquid storage component and the second liquid storage component outputting, comprising: determining the blood sugar status of the subject to be injected based on the blood sugar value; the blood sugar status includes hyperglycemia status, hypoglycemia status and normal status; controlling the output control component based on the blood sugar status, so that the output control component switches to control the output of the injection fluid in one of the first liquid storage component and the second liquid storage component.

In some embodiments, the control of the output control component based on the blood glucose condition causes the output control component to switch and control the output of the injection in one of the first liquid storage component and the second liquid storage component , comprising: when the blood glucose condition is normal based on the condition, determining the blood glucose change trend of the subject to be injected; based on the blood glucose change trend, controlling the output control component, so that the output control component switches control The injection liquid in one of the first liquid storage assembly and the second liquid storage assembly is output.

Description of drawings

This specification will be further illustrated by way of exemplary embodiments, which will be described in detail with the accompanying drawings. These examples are non-limiting, and in these examples, the same number indicates the same structure, wherein:

Fig. 1 is a schematic structural diagram of an injection device according to some embodiments of the present specification;

Fig. 2 is a schematic structural diagram of an injection device according to some embodiments of the present specification;

Fig. 3 is a schematic structural diagram of an injection device according to some embodiments of the present specification;

Fig. 4 is a schematic structural diagram of an injection device according to some embodiments of the present specification;

Fig. 5 is a schematic structural diagram of injection equipment shown in other embodiments of this specification;

Fig. 6 is a perspective view of an injection device installed on a carrier plate according to some embodiments of the present specification;

Fig. 7 is a cross-sectional view of the injection device shown in Fig. 6 installed on a bearing plate;

Fig. 8 is a schematic structural diagram of an injection device according to some other embodiments of the present specification;

Fig. 9 is a schematic structural diagram of an injection device according to some other embodiments of the present specification;

Fig. 10 is a schematic structural view of an injection device according to some other embodiments of the present specification;

Fig. 11 is an exploded view of the structure of the injection device according to some other embodiments of the present specification;

Fig. 12 is a schematic structural view of an injection device according to some other embodiments of the present specification;

Fig. 13 is a schematic structural view of an injection device according to some other embodiments of the present specification;

Fig. 14 is a schematic structural view of an injection device according to some further embodiments of the present specification;

Fig. 15 is a schematic structural view of an injection device installed in an installation shell according to some embodiments of the present specification;

Fig. 16 is a cross-sectional view of the injection device shown in Fig. 15 installed in the installation shell;

Fig. 17 is a schematic structural view of an injection system according to some embodiments of the present specification;

Fig. 18 is a workflow diagram of the injection system according to some embodiments of the present specification.

Detailed ways

In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the following briefly introduces the drawings that need to be used in the description of the embodiments. Apparently, the accompanying drawings in the following description are only some examples or embodiments of this specification, and those skilled in the art can also apply this specification to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

It should be understood that "system", "device", "unit" and/or "module" as used herein is a method for distinguishing different components, elements, parts, parts or assemblies of different levels. However, the words may be replaced by other expressions if other words can achieve the same purpose.

As indicated in the specification and claims, the terms "a", "an", "an" and/or "the" are not specific to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also contain other steps or elements.

The flowchart is used in this specification to illustrate the operations performed by the system according to the embodiment of this specification. It should be understood that the preceding or following operations are not necessarily performed in the exact order. Instead, various steps may be processed in reverse order or simultaneously. At the same time, other operations can be added to these procedures, or a certain step or steps can be removed from these procedures.

The specification embodiment describes an injection device. In some embodiments, the injection device may include a first liquid storage component and a second liquid storage component, and the first liquid storage component and the second liquid storage component may respectively be used to accommodate different types of injections, so as to achieve different injections. injection. In some embodiments, the injection device may include more liquid storage components including the first liquid storage component and the second liquid storage component, so as to accommodate more types of injection fluids. In some embodiments, the injection device may include an output control component, and the output control component may switch and control the output of injection fluid in one of the first liquid storage component and the second liquid storage component.

In some embodiments, the injection equipment can be applied to experimental equipment to achieve experimental purposes such as comparison of relevant experimental data corresponding to different types of injections. In some embodiments, the injection device can be applied to medical devices to inject different kinds of injection fluids to patients without changing the device. In some embodiments, the injection device can also be applied to other occasions where multiple injection fluids need to be injected, so as to realize the separate injection of different injection fluids. In the following, the application of injection equipment in medical devices is taken as an example for illustration. It should be known that the structure and working principle of the injection device applied to other occasions are substantially the same as those applied to medical devices, and will not be repeated here.

In some embodiments, the injection device can realize switching output of injection liquid in different liquid storage components, without using two separate injection devices, which can reduce the complexity of the structure and facilitate the use of users (such as patients and medical staff). In some embodiments, the injection device can be used for drug injection in the human body, which is beneficial to reduce the pain of the patient and improve user experience. As an example only, when the injection device is used for insulin injection and glucagon injection, it can switch between insulin and glucagon to achieve the purpose of stopping the input of insulin in time and switching to the input of glucagon to increase the patient's blood sugar, so as to avoid In the process of insulin injection, hypoglycemia occurs, which leads to shock or even death and other emergency situations, so that the safety of using injection equipment can be guaranteed.

Fig. 1 is a schematic structural diagram of an injection device 100 according to some embodiments of the present specification. As shown in FIG. 1 , the injection device 100 may include a first liquid storage component 110 , a second liquid storage component 120 and an output control component 130 .

The first liquid storage component 110 and the second liquid storage component 120 are configured to accommodate injection fluid. In some embodiments, both the first liquid storage component 110 and the second liquid storage component 120 may include a liquid storage bin, which is used for containing the injection fluid. More descriptions about the first liquid storage component and the second liquid storage component can be found below, such as the related descriptions in FIG. 3 and FIG. 4 or FIG. 9 and FIG. 10 . It should be known that the injection device 100 may also include other more liquid storage assemblies (such as three, five, eight, etc.), and the structures of other liquid storage assemblies are the same as those of the first liquid storage assembly 110 and the second liquid storage assembly. Component 120 may be structured similarly. Other liquid storage components and one of the first liquid storage component 110 and the second liquid storage component 120 can output the injection at the same time, and the injection fluid in the other liquid storage components, the first liquid storage component 110 and the second liquid storage component 120 can also output The output can be switched, that is, other liquid storage components output differently from the injection fluid in the first liquid storage component 110 and the second liquid storage component 120 at the same time. The output control component 130 switches and controls the output of the injection fluid in one of the first liquid storage component 110 and the second liquid storage component 120, which can be in various forms. For details, please refer to Figures 2-5 and 8-14 below. related description.

In some embodiments, as shown in FIG. 1, the output control assembly 130 (130-1) can be arranged at one end of the first liquid storage assembly 110 and the second liquid storage assembly 120 close to the output ports of the two, and the output control assembly 130 (130-1) can only allow the injection fluid in one of the first liquid storage assembly 110 and the second liquid storage assembly 120 to be output by switching. As an example only, the output control component 130 (130-1) can switch on the output port of one of the first liquid storage component 110 and the second liquid storage component 120, and block the first liquid storage component 110 and the second storage component 110. The output port of the other in the liquid assembly 120. For further description of this embodiment, please refer to the relevant description of FIGS. 2-5 .

In some embodiments, as shown in FIG. 1, the output control assembly 130 (130-2) can be arranged at one end of the first liquid storage assembly 110 and the second liquid storage assembly 120 away from the output ports of the two, and the output control assembly 130 ( 130 - 12 ) may be disposed between the power source 140 and the first liquid storage assembly 110 and the second liquid storage assembly 120 . As an example only, a first control device for reducing the volume of the first liquid storage assembly 110 is provided in the liquid storage chamber of the first liquid storage assembly 110, and a first control device for reducing the volume of the second storage assembly 120 is provided in the liquid storage chamber of the second liquid storage assembly 120. A second control device for the volume of the liquid assembly 120. In some embodiments, the first control device may include the first piston 111 shown in FIG. 1 , and the second control device may include the second piston 121 shown in FIG. 1 . In some other embodiments, the first liquid storage assembly 110 and the second liquid storage assembly 120 may be flexible containers, and the first control device and the second control device may include a squeezing mechanism capable of squeezing the flexible container. The mechanism is capable of reducing the volume of the flexible container by squeezing the flexible container.

Taking the first control device including the first piston 111 and the second control device including the second piston 112 as an example, the output control assembly 130 (130-2) can switch the second piston that transmits the power of the power source 140 to the first liquid storage assembly 110. A piston 111 pushes out the injection liquid in the first liquid storage assembly 110 , or a second piston 121 transmitted to the second liquid storage assembly 120 pushes out the injection liquid in the second liquid storage assembly 120 . For further description of this embodiment, please refer to the relevant description of FIGS. 8-14 . It should be noted that, in this specification, the piston, the moving plug, and the plunger unit may be similar components capable of promoting the output of the injection liquid in the liquid storage assembly.

Understandably, only one output control component 130 (namely 130-1 and 130-2) may be provided, or both may be provided. In addition, the relative positions of the output control assembly 130 (such as 130-1 and 130-2) and the first liquid storage assembly 110 and the second liquid storage assembly 120 in FIG. 1 are only examples, and the output control assembly 130 and the first liquid storage assembly The relative positions of the component 110 and the second liquid storage component 120 can be varied.

Fig. 2 is a schematic structural diagram of an injection device according to some embodiments of the present specification. In some embodiments, as shown in FIG. 2 , the injection device 100 may include a liquid outlet 150 . The liquid outlet 150 is the output end of the injection device 100 , and the injection device 100 realizes the output of liquid through the liquid outlet 150 . The output control assembly 130 may be disposed between the liquid outlet 150 and the liquid storage assembly (including the first liquid storage assembly 110 and the second liquid storage assembly 120 ). The output control component 130 switches and controls one of the first liquid storage component 110 and the second liquid storage component 120 to communicate with the liquid outlet 150 , so that the injection fluid in the one liquid storage component connected to the liquid outlet 150 is output.

In some embodiments, the output control assembly 130 may include a first connecting pipe, a second connecting pipe, a first valve and a second valve. The first connecting pipe communicates with the first liquid storage assembly 110 and the liquid outlet 150, the second connecting pipe communicates with the liquid outlet of the second liquid storage assembly 120, the first valve is arranged on the first connecting pipe, and the second valve is arranged at the second Two connecting pipes. Through the switching operation of opening the first valve and closing the second valve or closing the first valve and opening the second valve, one of the first liquid storage assembly 110 and the second liquid storage assembly 120 can be switched and controlled to pass through the corresponding connecting pipe. (the first connecting pipe or the second connecting pipe) communicates with the liquid outlet 150 .

Fig. 3 is a schematic structural diagram of an injection device according to some embodiments of the present specification. Fig. 4 is a schematic structural diagram of an injection device according to some embodiments of the present specification. In some embodiments, as shown in FIGS. 3 and 4 , the output control component 130 includes a regulation component 220 . The regulating assembly 220 is located between the liquid outlet 150 and the first liquid storage assembly 110 , and is also located between the liquid outlet 150 and the second liquid storage assembly 120 . At least part of the adjustment assembly 220 (such as the sealing plug 2221 mentioned later) can move between the first liquid storage assembly 110 and the second liquid storage assembly 120 to select the first liquid storage assembly 110 and the second liquid storage assembly One liquid storage component in 120 communicates with the liquid outlet 150 through the adjustment component 220 , so that the injection in the first liquid storage component 110 or the second liquid storage component 120 can be output from the liquid outlet 150 through the adjustment component 220 .

In some embodiments, at least a portion of adjustment assembly 220 is capable of reciprocating movement and remains in a desired position. When at least part of the adjustment assembly 220 is kept at a certain desired position, the adjustment assembly 220 can make the first liquid storage assembly 110 or the second liquid storage assembly 120 communicate with the liquid outlet 150. At this time, the first liquid storage assembly 110 or The injection liquid in the second liquid storage component 120 can be output through the liquid outlet 150 through the regulating component 220 . For example, the adjusting assembly 220 can have a first working position and a second working position, and the adjusting assembly 220 can reciprocate between the first working position and the second working position. When the adjusting assembly 220 is in the first working position, the first storage The liquid component 110 can communicate with the liquid outlet 150, and the second liquid storage component 120 cannot communicate with the liquid outlet 150; when the adjustment component 220 is in the second working position, the second liquid storage component 120 can communicate with the liquid outlet 150, The first liquid storage component 110 cannot communicate with the liquid outlet 150 .

In some embodiments, the injection device 100 may further include an installation housing 210 , an installation cavity 211 is formed in the installation housing 210 , and the adjustment assembly 220 is installed in the installation cavity 211 . The liquid outlet 150 may be disposed on the installation shell 210 and communicate with the installation cavity 211 . In some embodiments, the installation housing 210 is a shell structure of the injection device 100 , the installation housing 210 is a hollow structure, and the hollow part inside it is an installation cavity 211 , and some parts of the injection device 100 are located in the installation cavity 211 . It can be understood that the shape of the installation shell 210 is not limited in principle, and its cross-sectional shape can be square, circular, elliptical, polygonal or other irregular shapes, as long as the components of the injection device 100 can be installed.

In some embodiments, the first liquid storage component 110 and the second liquid storage component 120 may be located in the installation cavity 211 . That is to say, the installation shell 210 can wrap the liquid storage assembly, which can ensure the safety of the injection device 100 during use, prevent the liquid storage assembly from detaching from the installation shell 210, and ensure that the liquid storage assembly can be reliably fixed in the installation shell 210.

In some embodiments, the liquid storage assembly may be partially located within the installation cavity 211 . That is to say, a part of the liquid storage component is located in the installation cavity 211 , and another part of the liquid storage component is exposed from the installation shell 210 . In actual use, the liquid storage assembly can be directly operated outside the installation housing 210 to realize the delivery of the injection fluid in the liquid storage assembly (for example, through the first driving member, the second driving member, and the third driving member described below). Moreover, when the injection liquid in the liquid storage assembly is used, the liquid storage assembly can be directly operated from the outside to separate the liquid storage assembly from the installation shell 210 . At this time, the liquid storage component can be replaced or filled with injection solution to realize quick disassembly and assembly of the liquid storage component.

In some embodiments, a liquid storage component may be mounted on the end of the installation housing 210 facing away from the liquid outlet 150 . The first liquid storage component 110 and the second liquid storage component 120 are installed side by side on the installation shell 210 , and protrude into the installation cavity 211 of the installation shell 210 . Multiple liquid storage components can store the same injection solution or different injection solutions to meet the needs of different working conditions.

As an example only, at a certain point of time, the adjustment component 220 needs to communicate with the first liquid storage component 110 or the second liquid storage component 120 to output the injection fluid in the corresponding liquid storage component. When it is necessary to replace the output injection (for example, when it is necessary to compare or supplement the injection in other liquid storage components with the previous injection, and for example, it is necessary to output the injection of glucagon to improve the patient’s When the blood sugar is excessively lowered due to excessive insulin), control the movement of the adjustment assembly 220, adjust the position of the adjustment assembly 220, so that the adjustment assembly 220 cuts off the communication between the liquid outlet 150 and the liquid storage assembly originally connected to the liquid outlet 150, and communicates with another The liquid storage component is used to realize the output of the injection liquid corresponding to the liquid storage component, so as to achieve the purpose of switching the injection liquid in the injection device 100 .

In some embodiments, the adjustment assembly 220 has a communication position and a closing position, and the adjustment assembly 220 can reciprocate between the communication position and the closing position to realize on-off control of the liquid storage assembly and the liquid outlet 150 . Specifically, when the adjustment assembly 220 moves to the communication position, the adjustment assembly 220 can be selected to be connected with a certain liquid storage assembly, so that the adjustment assembly 220 communicates with the liquid outlet 150 and the corresponding liquid storage assembly, and the injection liquid in the liquid storage assembly It can be output through the liquid outlet 150 through the regulating assembly 220 . When the adjustment assembly 220 moves to the closed position, the adjustment assembly 220 disconnects the communication between each liquid storage assembly and the liquid outlet 150, and the liquid storage assembly cannot output. Moreover, when the adjustment assembly 220 connects one of the liquid storage assemblies and the liquid outlet 150, the adjustment assembly 220 shuts off the other liquid storage assembly and the liquid outlet 150, so that only one liquid storage assembly can be connected to the liquid outlet 150.

In some embodiments, the adjustment assembly 220 may include an adjustment pipeline 221 and a moving part 222 movably arranged in the adjustment pipeline 221, the adjustment pipeline 221 has an output port 2211, a first input port 2212 and a second input port 2213 (hereinafter referred to as the first An input port 2212 and a second input port 2213 are collectively referred to as the input port), the output port 2211 can be connected to the liquid outlet 150, the first input port 2212 is connected to the first liquid storage assembly 110, and the second input port 2213 is connected to the second storage component 110 The liquid components 120 are connected, and when the moving part 222 moves in the regulating pipe 221 , the moving part 222 can control one of the first input port 2212 and the second input port 2213 to communicate with the output port 2211 .

In some embodiments, the adjustment conduit 221 is the housing of the adjustment assembly 220 . Specifically, the regulating pipe 221 is a fixed part, and the regulating pipe 221 is a hollow structure, and a moving part 222 is installed therein, and the moving part 222 is movably installed in the regulating pipe 221 . It can be understood that the shape of the inner cavity of the adjustment pipe 221 is not limited here, as long as the moving part 222 can be installed and the sealing can be ensured, so as to avoid leakage of the injection.

In some embodiments, the moving part 222 includes a sealing plug 2221 and a first driving member 2222, the sealing plug 2221 is movably arranged in the adjustment pipe 221, the sealing plug 2221 opens a communication channel 22211, and the first driving member 2222 is arranged on the sealing plug The end portion of 2221 extending in the axial direction is used to drive the sealing plug 2221 to move in the regulating pipe 221 , so that the flow channel 22211 communicates with one of the first input port 2212 and the second input port 2213 to the output port 2211 .

In some embodiments, the sealing plug 2221 is used to seal the regulating pipe 221 to avoid leakage of the injection liquid after passing through the regulating pipe 221 . The sealing plug 2221 is movably arranged in the regulating pipe 221 , and the sealing of the regulating pipe 221 is realized through the sealing contact of the sealing plug 2221 . The circulation channel 22211 is opened on the outer wall of the sealing plug 2221 , and the circulation channel 22211 can connect one of the first input port 2212 and the second input port 2213 to the output port 2211 . At this time, the injection in the liquid storage component corresponding to the input port can enter the circulation channel 22211 through the input port, and then enter the liquid outlet 150 through the output port 2211 to realize the output of the injection. As shown in Figure 3, the first driving member 2222 drives the sealing plug 2221 to move in the regulating pipe 221, so that the flow passage 22211 communicates with the first input port 2212. At this time, the injection liquid in the first liquid storage component 110 can pass through the first The input port 2212 enters the circulation channel 22211 , and then outputs from the liquid outlet 150 through the output port 2211 . As shown in Figure 4, the first driving member 2222 drives the sealing plug 2221 to move in the regulating pipe 221, so that the flow channel 22211 communicates with the second input port 2213. At this time, the injection liquid in the second liquid storage assembly 120 can pass through the second The input port 2213 enters the circulation channel 22211 , and then outputs from the liquid outlet 150 through the output port 2211 .

Specifically, the circulation channel 22211 is recessed on the surface of the sealing plug 2221 . When the sealing plug 2221 moves to the communication position, the flow channel 22211 corresponds to one of the first input port 2212 and the second input port 2213, and the injection in the input port can enter the flow channel 22211 and flow out from the output port 2211. When the sealing plug 2221 moves to the closed position, the outer wall of the sealing plug 2221 can abut against each input port to seal the input port. At this time, the injection solution in the liquid storage assembly cannot be output. In some embodiments, the flow channel 22211 may be an annular groove, and in other embodiments, the flow channel 22211 may also be a flow channel opened on the surface of the sealing plug 2221 .

Specifically, the first driving member 2222 can drive the sealing plug 2221 to make a reciprocating linear movement in the regulating pipe 221 , so that the sealing plug 2221 can open or close the first input port 2212 or the second input port 2213 . When the first driving member 2222 drives the flow channel 22211 of the sealing plug 2221 to communicate with one of the input ports, the sealing plug 2221 opens the input port, and the injection solution in the corresponding liquid storage assembly can be input into the output port 2211 . When the first driving member 2222 drives the flow channel 22211 of the sealing plug 2221 away from the input port, the sealing plug 2221 can seal at least one input port to stop outputting the injection solution. In some embodiments, the shape of the sealing plug 2221 matches the shape of the inner wall of the regulating pipe 221 . For example, the cross-sectional shape of the lumen of the regulating pipe 221 is circular, and correspondingly, the sealing plug 2221 is a cylindrical plug.

In some embodiments, the first driving member 2222 may be an electromagnetic coil. After the electromagnetic coil is energized, the magnetic field generated by the electromagnetic coil can pull out or withdraw the sealing plug 2221 to adjust the position of the sealing plug 2221 in the adjustment pipe 221 and realize the switching of the injection liquid output in different liquid storage components. In some other embodiments, the first driving member 2222 may also be an electromagnet, a linear motor, a hydraulic cylinder, a pneumatic cylinder or other components capable of outputting reciprocating linear motion.

In some embodiments, the outer wall of the sealing plug 2221 directly abuts against the inner wall of the regulating pipe 221 to realize the sealing of the regulating pipe 221 . In other embodiments, the sealing plug 2221 can also seal the regulating pipe 221 through indirect contact. In some embodiments, the adjustment assembly 220 may further include a sealing washer, which is sleeved on the sealing plug 2221 to increase the sealing performance of the communication between the sealing plug 2221 and the regulating pipe 221 . In some embodiments, there may be more than one sealing gasket, and the plurality of sealing gaskets are arranged at intervals along the moving direction of the sealing plug 2221 (ie, the direction A shown in FIG. 3 ). In some embodiments, the outer periphery of the sealing plug 2221 is provided with an installation groove, and the sealing gasket is installed in the installation groove to limit the position of the sealing gasket, avoid the movement of the sealing gasket on the sealing plug 2221, and ensure the sealing effect.

In some embodiments, the sealing plug 2221 may include two sealing sections 22212 and a flow section 22213 disposed between the two sealing sections 22212 , the flow section 22213 is recessed relative to the sealing section 22212 to form a flow channel 22211 . That is to say, the partial section of the sealing plug 2221 has a smaller diameter, thereby leaving the circulation channel 22211 of the annular space. Moreover, the length of the flow section 22213 needs to be greater than or equal to the distance between the output port 2211 and the first input port 2212 or the second input port 2213, so that the output port 2211 can communicate with any input port; the length of the flow section 22213 also needs to be less than or equal to the first The distance between the input port 2212 and the second input port 2213 is to ensure that the input port can be closed.

Fig. 5 is a schematic structural view of injection equipment shown in other embodiments of the present specification. In some embodiments, as shown in FIG. 5 , the adjustment assembly 220 may include a first three-way pipe 271 capable of reciprocating movement (such as along the direction of arrow D in FIG. 5 ). The first three-way pipe 271 includes a first inlet 2711 , a first outlet 2712 and a second outlet 2713 . The first inlet 2711 can be switched to communicate with one of the first liquid storage assembly 110 and the second liquid storage assembly 120 during the reciprocating movement. The first outlet 2712 and the second outlet 1713 can be switched to communicate with the liquid outlet 150 during the reciprocating movement. When the first inlet 2711 communicates with the first liquid storage assembly 110, the first outlet 2712 communicates with the liquid outlet 150; when the first inlet 2711 communicates with the second liquid storage assembly 120, the second outlet 2713 communicates with the liquid outlet 150 connected. In some embodiments, the adjusting assembly 220 may further include a second driving member 271, and the second driving member 272 is used to drive the first three-way pipe 271 to reciprocate. The second driving member 271 may include a telescoping rod. In some embodiments, the second driving member 272 may be similar to the first driving member 272 , which will not be repeated here.

Continuing to refer to FIG. 3 and FIG. 4 , in some embodiments, the adjustment assembly 220 may further include a first adapter tube 223 and a second adapter tube 224 (hereinafter the first adapter tube 223 and the second adapter tube 224 are collectively referred to as an adapter tube), The first transfer tube 223 and the second transfer tube 224 are respectively used to realize communication between the first liquid storage assembly 110 , the second liquid storage assembly 120 and the adjustment assembly 220 (such as the flow section 22213 of the sealing plug 2221 ). Specifically, the transfer tube is correspondingly arranged at the input port, and is inserted into the liquid storage component, so that the input port communicates with the corresponding liquid storage component. More specifically, one end of the transfer tube is disposed in the input port, and the other end of the transfer tube extends out of the input port 2212 . After the liquid storage assembly is installed in the installation shell 210, the other end of the transfer tube can be inserted into the liquid storage assembly, and at this time, the injection in the liquid storage assembly can enter the input port through the transfer tube. When the sealing plug 2221 communicates with the input port and the output port 2211 through the flow channel 22211, the injection liquid in the liquid storage assembly can enter the flow channel 22211 through the transfer tube 223 and the input port, and then pass through the flow channel 22211 and the output port 2211, from the liquid outlet Port 150 output.

In some embodiments, the adapter tube can be a hard tube, which facilitates the insertion of the adapter tube into the liquid storage assembly. In some embodiments, the second end of the adapter tube is set as a pointed end, which further facilitates the insertion of the adapter tube into the liquid storage assembly. Of course, in other embodiments of the present specification, a butt joint may also be provided at the liquid inlet and outlet of the liquid storage component, and the output of the injection can be realized through the joint of the butt joint and the transfer tube.

In some embodiments, at least one of the first liquid storage assembly 110 and the second liquid storage assembly 120 may include a liquid storage housing 231 and a movement plug 232 movably disposed in the liquid storage housing 231, the movement plug 232 and the liquid storage housing 231 are arranged to form a liquid storage chamber 2311 for storing injection fluid. When the movement plug 232 moves, the injection fluid in the liquid storage chamber 2311 can be output (such as through the input port). In some embodiments, both the first liquid storage assembly 110 and the second liquid storage assembly 120 may include a liquid storage housing 231 and a movement plug 232 movably disposed in the liquid storage housing 231 . In some embodiments, a sealing ring may be provided on the outer wall of the movement plug 232 .

Specifically, the liquid storage housing 231 is a hollow structure, and the movement plug 232 is arranged at the end of the liquid storage housing 231 away from the input port. The bin 2311 stores the injection liquid to be injected by the injection device 100 . After the liquid storage housing 231 is installed on the installation shell 210, the adjustment assembly 220 is inserted into the liquid storage housing 231 through the adapter tube to establish the connection between the input port and the liquid storage housing 231, and the injection in the liquid storage housing 231 Liquid can enter the input port.

Specifically, the movement plug 232 is movably disposed at the end of the liquid storage housing 231 away from the input port. When the movement plug 232 moves close to the input port to compress the space of the liquid storage chamber 2311 and squeeze the injection liquid, the injection liquid in the liquid storage housing 231 is output from the transfer tube. When the moving plug 232 moves away from the input port to expand the space of the liquid storage chamber 2311 , the injection liquid in the liquid storage chamber 2311 can be filled.

In some embodiments, the liquid storage housing 231 of the first liquid storage assembly 110 and the second liquid storage assembly 120 can be integrated, and the inside of the liquid storage housing 231 is divided into multiple storage chambers by a partition plate, A plurality of liquid storage chambers respectively store liquid, and each liquid storage chamber corresponds to a moving plug, thereby forming a liquid storage assembly. Certainly, in other embodiments of the present specification, the liquid storage housings of each liquid storage assembly may also be independently provided. That is to say, each liquid storage assembly is independent of each other and can be installed in the installation shell 210 .

In some embodiments, the liquid storage housing 231 includes a bottle mouth, a bottle body and a sealing cap covering the bottle mouth. The bottle mouth is arranged on the bottle body, and the bottle mouth corresponds to the liquid inlet and outlet of the liquid storage assembly. The body is far away from the end of the bottle mouth, the bottle mouth is aligned with the input port, and the transfer tube passes through the sealing cover and extends into the liquid storage housing 231. The cross-sectional size of the bottle mouth is smaller than the cross-sectional size of the bottle body, that is, the bottle mouth shrinks inward relative to the bottle body, which facilitates the installation of the liquid storage component in the installation shell 210 . Moreover, the injection solution is stored through the bottle body, which can increase the storage capacity of the injection solution and avoid frequent replacement of the solution storage component. Moreover, the sealing cap is arranged on the bottle mouth, and the movement plug 232 and the sealing cap are respectively arranged on the two ends of the bottle mouth and the bottle body, so as to realize the sealing of the liquid storage case 231 and prevent the liquid storage case 231 from leaking. In some embodiments, the mouth of the bottle and the body of the bottle are integrated to ensure the structural strength of the liquid storage case 231 , thereby ensuring the performance of the liquid storage case 231 .

In some embodiments, the sealing cap is supported by a rubber material. The transfer tube can penetrate the sealing cover and extend into the liquid storage bin 2311 of the corresponding liquid storage assembly, so as to facilitate the connection between the transfer tube and the liquid storage housing 231 . Certainly, in other embodiments of the present invention, the sealing cover may also be made of plastic or other materials capable of achieving sealing and facilitating the insertion of the adapter tube.

In some embodiments, at least one liquid storage assembly of the first liquid storage assembly 110 and the second liquid storage assembly 120 may include a push rod 233, and the push rod 233 abuts against the movement plug 232 of the corresponding liquid storage assembly. The push rod 233 can drive the movement plug 232 to move under the action of external force. The push rod 233 can be connected with the power source of the medical device, and the power output by the power source can drive the push rod 233 to reciprocate along the B direction shown in FIG. In some embodiments, a push rod 233 may be disposed in the movement plug 232 . For example, a groove is provided on the side of the movement plug 232 away from the input port, and the end of the push rod 233 can be inserted into the groove to be fixed.

In some embodiments, the injection device 100 may further include a fixing component 250 disposed in the installation cavity 211 . The fixing assembly 250 is used to realize the liquid storage housing of the first liquid storage assembly 110 and/or the liquid storage housing of the second liquid storage assembly 120, so that the liquid storage assembly is reliably fixed in the installation cavity 211, avoiding the position of the liquid storage assembly Vibration occurs, so that the injection solution in the liquid storage component can be reliably output.

In some embodiments, the fixing assembly 250 may include a first fixing base 251, the first fixing base 251 has a first fixing groove 2511 and a first connecting groove 2512 connected with the first fixing groove 2511, the first fixing groove 2511 is used for The bottle mouth of the liquid storage housing of the first liquid storage assembly 110 is installed, and the first connecting groove 2512 corresponds to and communicates with the first input port 2212 of the regulating pipe 221 . In some embodiments, the fixing assembly 250 may include a second fixing base 252, the second fixing base 252 has a second fixing groove 2521 and a second connecting groove 2522 connected with the second fixing groove 2521, the second fixing groove 2521 is used for The bottle mouth of the liquid storage housing of the second liquid storage assembly 120 is installed, and the second connecting groove 2522 corresponds to and communicates with the second input port 2213 of the regulating pipe 221 . In some embodiments, both the first fixing seat 251 and the second fixing seat 252 are fixedly arranged in the installation cavity 211 of the installation shell 210, and the first fixing seat 251 and the second fixing seat 252 are located between the regulating pipe 221 and the liquid storage. between components. After the first liquid storage component 110 and the second liquid storage component 120 extend into the installation shell 210, the first liquid storage component 110 can cooperate with the first fixing seat 251, and the second liquid storage component 120 can cooperate with the second fixing seat 252, The fixed positioning of the first liquid storage component 110 and the second liquid storage component 120 is realized.

Specifically, a first fixing groove 2511 and a first connecting groove 2512 are defined on the first fixing seat 251 . The first fixing groove 2511 and the first connecting groove 2512 are disposed through the first fixing base 251 , the first connecting groove 2512 communicates with the first fixing groove 2511 , and the first connecting groove 2512 corresponds to the first input port 2212 . The bottle mouth of the liquid storage housing of the first liquid storage assembly 110 . The first adapter pipe 223 in the first input port 2212 extends into the liquid storage housing 231 through the first connecting groove 2512 and the first fixing groove 2511 . The mouth of the bottle is locked in the first fixing groove 2511 , and the first liquid storage component 110 is limited by the first fixing groove 2511 , so that the first liquid storage component 110 is reliably fixed in the installation shell 210 . A second fixing groove 2521 and a second connecting groove 2522 are defined on the second fixing seat 252 . The second fixing groove 2521 and the second connecting groove 2522 are disposed through the second fixing base 252 , the second connecting groove 2522 communicates with the second fixing groove 2521 , and the second connecting groove 2522 corresponds to the second input port 2213 . The bottle mouth of the liquid storage housing of the second liquid storage assembly 120 . The second adapter tube 224 in the second input port 2213 extends into the liquid storage housing 231 through the second connecting groove 2522 and the second fixing groove 2521 . The mouth of the bottle is locked in the second fixing groove 2521 , and the second liquid storage component 120 is limited by the second fixing groove 2521 , so that the second liquid storage component 120 is reliably fixed in the installation shell 210 .

In some embodiments, the fixing assembly 250 may further include a first fixing buckle 253, the first fixing buckle 253 is disposed on the first fixing seat 251, and is set corresponding to the first fixing groove 2511, the first fixing buckle 253 can It abuts against the outer wall of the bottle opening of the liquid storage housing extending into the first liquid storage assembly 110 . In some embodiments, the fixing assembly 250 may further include a second fixing buckle 254, the second fixing buckle 254 is disposed on the second fixing base 252, and is set corresponding to the second fixing groove 2521, the second fixing buckle 254 can It abuts against the outer wall of the bottle opening of the liquid storage housing extending into the second liquid storage assembly 120 . In some embodiments, the first fixing buckle 253 is set on the first fixing base 251 in a hook shape, and when the bottle mouth extends into the first fixing groove 2511, the first fixing buckle 253 can be against the outer wall of the bottle mouth. Connect, so that the liquid storage housing of the first liquid storage assembly 110 is reliably installed. In some embodiments, the second fixing buckle 254 is arranged on the second fixing seat 252 in a hook shape. When the bottle mouth extends into the second fixing groove 2521, the second fixing buckle 254 can be against the outer wall of the bottle mouth. Connect, so that the liquid storage housing of the second liquid storage assembly 120 is reliably installed. Of course, in other embodiments of this specification, the fixing assembly 250 may also include a protective shell, which is arranged on the outside of the liquid storage case 231 and connected with the installation shell 210 to realize the fixation of the liquid storage case 231 and avoid The liquid storage case 231 moves.

In some embodiments, the injection device 100 may further include an injection tube 260 , one end of the injection tube 260 is disposed in the liquid outlet 150 , and the other end of the injection tube 260 protrudes for connecting with a syringe or directly injecting to a patient. In some embodiments, the other end of syringe 260 is used to connect an indwelling needle. In some embodiments, the injection tube 260 may be a needle or a flexible or hard tube connected to a needle or the like.

In the injection device 100 of the above embodiment, a plurality of liquid storage components are arranged on the installation shell 210, and different liquid storage components are switched through the movement of the adjustment component 220, so that the required liquid storage components pass through the adjustment component 220 and the installation shell 210. The liquid outlet 150 is connected to realize switching output of different injection liquids, which effectively solves the problem of complex structure caused by installing two sets of equipment when the current equipment outputs two different injection liquids, reduces the complexity of the structure, and is easy to use. Moreover, since only one liquid outlet 150 is provided, only one indwelling needle is needed in the body. When the injection device 100 is used for drug injection in the human body, it can also reduce the patient's pain and improve user experience. 3 and 4, the injection device 100 controls the movement of the moving plug 232 in the regulating pipe 221 through the first driving member 2222, so that the injection liquid in one of the liquid storage components can pass through the sealing plug 2221 and enter the outlet port 2211 into the In the liquid outlet 150, the output of injection liquid is realized. During use, adjusting the position of the sealing plug 2221 in the adjustment pipe 221 can select the output of the injection in any one of the liquid storage components, so as to realize the switching output of the injection in different liquid storage components. When the injection device 100 is used for injecting injections, different injections can be stored in each liquid storage assembly. In this way, different injections can be injected separately by switching the adjustment assembly 220, and only one liquid outlet 150 is required. An injection tube 260 provided with an indwelling needle is easy to operate, and only one indwelling needle is placed on the patient, thereby reducing the patient's pain.

Taking insulin injection by the injection device 100 as an example: the first liquid storage component 110 stores insulin injection, and the second liquid storage component 120 stores glucagon injection. When injecting insulin injection to the patient, the adjustment component 220 communicates with the first liquid storage component 110 of the insulin injection and the liquid outlet 150 to realize the output of the insulin injection. In the process of injecting insulin to the patient, if hypoglycemia occurs, adjust the position of the adjustment assembly 220 so that the adjustment assembly 220 shuts off the communication between the liquid outlet 150 and the first liquid storage assembly 110, and connects to store the glucagon injection. The second liquid storage component 120 and the liquid outlet 150 of the liquid realize the injection of the glucagon liquid to increase the blood sugar of the patient and ensure the safety during use.

The injection device also includes a power source 140, the power source 140 can provide power to multiple liquid storage components in the injection device 100, and is used to control the output of the liquid storage components (such as the first liquid storage component 110, the second liquid storage component 120, etc.) Injection.

In some embodiments, the injection device may include a first driver and a second driver, that is, the power source 140 may include a first driver and a second driver, and the first driver and the second driver are respectively used It is used to drive the output of the injection fluid in the first liquid storage assembly 110 and the second liquid storage assembly 120 . By way of example only, the first driving member and/or the second driving member may include an electric motor, an air cylinder, a hydraulic cylinder, an air pump or a liquid pump, and the like. As an example only, when the first driving member and/or the second driving member may include a motor, an air cylinder or a hydraulic cylinder, the output end of the motor, air cylinder or hydraulic cylinder may be connected to the piston for pushing out the injection solution described above ( Such as being connected with a moving plug by a push rod), a motor, an air cylinder or a hydraulic cylinder can control the amount of movement of the piston; One side of the injection liquid piston holds the injection liquid, and the other side of the piston can be provided with a pneumatic cavity (or a hydraulic cavity). By controlling the amount of liquid filled in the liquid chamber, the amount of movement of the piston is controlled).

In some other embodiments, the injection device 100 includes a third drive assembly, that is, the drive source may include a third drive member, and the power of the third drive member is switched to be transmitted to the first liquid storage assembly through the output control assembly 130 110 and a liquid storage assembly in the second liquid storage assembly 120 that communicates with the liquid outlet 150, the output control assembly 130 switches the specific way to transmit the power of the third drive member to the first liquid storage assembly 110 and the second liquid storage assembly , please refer to the relevant description of Figure 8-14 below. Merely as an example, the third driving member may include a motor, an air cylinder, a hydraulic cylinder, an air pump or a liquid pump, and the like. In addition, it can be understood that the specific way in which the output control assembly 130 switches and transmits the power of the third driving member to the first liquid storage assembly 110 and the second liquid storage assembly may be applicable to the first liquid storage assembly 110 and the second liquid storage assembly above. The technical solution that the liquid component 120 shares the liquid outlet 150 to output the injection can also be applied to the technical solution that the first liquid storage component 110 and the second liquid storage component 120 respectively output the injection through different liquid outlets.

The injection device 100 of the present application can realize switching output of injection liquid in different liquid storage components, meet the use requirements of different working conditions, and is easy to use. Moreover, when the medical device of the present invention injects medicine into the human body through the injection device 100, since only one liquid outlet 150 is provided, only one indwelling needle needs to be embedded in the human body, which can also reduce the patient's pain and improve user experience. .

Fig. 6 is a perspective view of a carrier plate of an injection device according to some embodiments of the present specification. Fig. 7 is a cross-sectional view of the injection device shown in Fig. 6 . As shown in FIG. 6 and FIG. 7 , the injection device 100 may include a carrying board 160 , and the above-mentioned components of the injection device 100 may be arranged on the carrying board 160 to facilitate the use of the injection device 100 . For example, components of the injection device 100 including the above-mentioned installation housing 210 , adjustment assembly 220 , first liquid storage assembly 110 , second liquid storage assembly 120 , fixing assembly 250 and injection tube 260 may be disposed on the supporting plate 160 .

In some embodiments, the injection device 100 can be fixed to the carrier plate 160 through the mounting shell 210 . In some embodiments, the injection device 100 can be fixed by installing the casing 210 and/or the liquid storage housing of the first liquid storage assembly 110 , the liquid storage housing of the second liquid storage assembly 120 and the bearing plate 160 .

Another example of the injection device will be described below with reference to FIGS. 8-14 . As shown in FIGS. 8-14 , the injection device 100 includes a first liquid storage assembly 110 , a second liquid storage assembly 120 and a third driving member 141 . That is to say, the power source 140 includes a third driving member 141 . The output control assembly 130 includes a drive switching mechanism 131 . The drive switching mechanism 131 includes a transmission mechanism 331 and a moving driving member 332. The moving driving member 332 drives the transmission mechanism 331 to move, and the transmission mechanism 331 transfers the power output switching of the third driving member 141 to the first liquid storage assembly 110 and the second liquid storage assembly 110 by moving. One of the liquid storage components 120 . The first liquid storage assembly 110 and the second liquid storage assembly 120 can accommodate different injection fluids, and the first liquid storage assembly 110 or the second liquid storage assembly 120 outputs the injection fluid under the driving force of the third driving member 141 to realize two Free switching output of various injections. Of course, according to actual injection requirements, the injection device 100 may also include three or more liquid storage components to realize switching output of three or more injection liquids.

In some embodiments, the first liquid storage component 110 and the second liquid storage component 120 can be arranged side by side. In some embodiments, the first liquid storage component 110 and the second liquid storage component 120 may be arranged at a certain angle. The moving drive member 332 drives the transmission mechanism 331 to move (such as linear movement, rotation, etc.), so that the transmission mechanism 331 is connected to the transmission of the first liquid storage assembly 110 or the second liquid storage assembly 120, and the power of the third drive member 141 passes through the transmission The connection between the mechanism 331 and the first liquid storage assembly 110 or the second liquid storage assembly 120 is transferred to the first liquid storage assembly 110 or the second liquid storage assembly 120 . For example, the first liquid storage assembly 110 and the second liquid storage assembly 120 are arranged side by side, and the moving driving member 332 drives the transmission to move horizontally, so that the transmission mechanism 331 is in transmission connection with the first liquid storage assembly 110 or the second liquid storage assembly 120 . For another example, the first liquid storage assembly 110 and the second liquid storage assembly 120 are arranged at 30°, and the moving drive member 332 can drive the transmission mechanism 331 to rotate, so that the transmission mechanism 331 and the first liquid storage assembly 110 or the second liquid storage assembly 120 transmission connection.

In some embodiments, both the first liquid storage assembly 110 and the second liquid storage assembly 120 may include a plunger unit 311 for pushing out the injection liquid, and the plunger unit 311 may squeeze the injection liquid in the liquid storage assembly to make the injection The liquid is output from the liquid storage assembly. The moving drive member 332 and the transmission mechanism 331 move, so that the transmission mechanism 331 can be connected with the plunger unit 311 of the first liquid storage assembly 110 or the second liquid storage assembly 120, and the transmission mechanism 331 transmits the power output of the third drive member 141 to The plunger unit 311 of the first liquid storage assembly 110 or the second liquid storage assembly 120 squeezes the injection liquid in the corresponding liquid storage assembly to output the injection liquid.

In some embodiments, the transmission mechanism 331 may include a transmission rod 3311, the first end of the transmission rod 3311 is in transmission connection with the third driving member 141, the second end of the transmission rod 3311 is used for transmission connection with the plunger unit 311, and the transmission rod 3311 is in transmission connection with the plunger unit 311. 3311 can linearly move and/or rotate under the drive of the moving drive 332 . In some embodiments, in order to save installation space, the first liquid storage assembly 110 and the second liquid storage assembly 120 are arranged side by side, and the moving drive member 332 drives the transmission rod 3311 to translate, so that the second end of the transmission rod 3311 is aligned with the first liquid storage assembly. The plunger unit 311 of the assembly 110 or the second liquid storage assembly 120 is connected in transmission, and the plunger unit 311 is driven by the third driving member 141 to push and squeeze the injection liquid to output. In some embodiments, the first liquid storage assembly 110 and the second liquid storage assembly 120 are arranged side by side, and the transmission rod is a curved rod, that is, there is a certain distance between the first end and the second end of the transmission rod in the direction perpendicular to its axial direction. distance, the moving drive member 332 drives the transmission rod to rotate, so that the second end of the transmission rod is in transmission connection with the plunger unit 311 of the first liquid storage assembly 110 or the second liquid storage assembly 120, and the plunger unit 311 is in the third drive member Driven by 141, the injection fluid is pushed and squeezed to output.

In some embodiments, the first liquid storage assembly 110 and the second liquid storage assembly 120 further include a linkage. The linkage is disposed on the plunger unit 311 . The transmission rod 3311 is provided with an actuator, and the moving driving member 332 drives the transmission rod 3311 to move linearly, so as to drive the actuator to switch between the linkage of the first liquid storage assembly 110 and the linkage of the second liquid storage assembly 120, and Cooperate with one of the linkage parts to drive the corresponding plunger unit 311 to move. By setting the transmission rod 3311, the linkage and the actuator, and the transmission rod 3311 can drive the actuator to move linearly, so that the actuator can switch between the linkages of different liquid storage components and drive the corresponding linkage The liquid storage components corresponding to the components are injected, so as to achieve the purpose of driving injection of different liquid storage components through one driving component.

In some embodiments, the moving driving part 332 may include an electromagnet 3321, and the end of the transmission rod 3311 close to the electromagnet 3321 is provided with a permanent magnet 3322 with polarity. By changing the electrification direction of the coil of the electromagnet 3321 to drive The transmission rod 3311 linearly moves toward or away from the electromagnet 3321 , so that the actuator on the transmission rod 3311 switches between the linkage of the first liquid storage assembly 110 and the linkage of the second liquid storage assembly 120 . Specifically, the cooperation of the electromagnet 3321 and the permanent magnet 3322 is used to drive the transmission rod 3311 to move linearly, and the direction of the magnetic pole of the electromagnet 3321 is changed by changing the energization direction of the coil in the energized state, so that the cooperation between the electromagnet 3321 and the permanent magnet 3322 Switch between mutual attraction and mutual repulsion, so that the transmission rod 3311 drives the actuator to move linearly toward or away from the electromagnet 3321 . It adopts the cooperating driving method of electromagnet 3321 and permanent magnet 3322. It has a simple structure and is environmentally friendly. It is realized by controlling the power on and off and the direction of the current. It is easy to operate, strong in controllability, safe and reliable, and is very suitable for injection infusion equipment. middle.

In some embodiments, the moving driving member 332 may include a memory metal, and the transmission rod 3311 is connected to the memory metal, and the memory metal deforms after being energized to drive the transmission rod 3311 to move linearly. In some embodiments, the memory metal can be a memory metal wire. The memory metal wire has the characteristic of self-recovery at a certain temperature, and is small in size, saving installation space. The transmission rod 3311 is directly connected to the memory metal wire without additional The other components that cooperate with it can simplify the structure and optimize the design.

In some other embodiments, the moving driver 332 may include a linear driver, and the linear driver includes a telescopic rod, the transmission rod 3311 is connected to the telescopic rod, and the telescopic rod telescopically drives the transmission rod 3311 to move linearly, and the telescopic rod drives the transmission rod 3311 to stabilize the linear movement. High performance, which can ensure the precision and stability of cooperation between the actuator and the linkage.

In some embodiments, both the first liquid storage assembly 110 and the second liquid storage assembly 120 may include a cartridge 312, which is used to contain injection fluid, and the first end of the plunger unit 311 extends into the cartridge 312, And it can move in the cartridge 312 to control the injection of the injection liquid in the cartridge 312 . The second end of the plunger unit 311 can be connected in transmission with the transmission mechanism 331, driven by the transmission mechanism 331, the plunger unit 311 squeezes the injection liquid in the cartridge 312, so that the injection liquid is output from the corresponding liquid storage assembly. In some embodiments, the cartridge 312 is provided with an output port 313, and the output port 313 is located away from the plunger unit 311. When the plunger unit 311 squeezes the injection liquid in the cartridge 312, the injection liquid flows from the output port of the corresponding liquid storage component. 313 output.

In some embodiments, the drug cartridge 312 includes a storage bin 3121, a drug storage bin 3122 and a sleeve 3123, the injection solution is contained in the drug storage bin 3122, and the drug storage bin 3122 and the sleeve 3123 are along the axial direction of the storage bin 3121 (such as C direction shown in FIG. 39 ) are arranged side by side in the storage bin 3121, and the first end of the plunger unit 311 extends into the drug storage bin 3122 and can move in the drug storage bin 3122 to control the injection of the injection. The sleeve 3123 limits the plunger unit 311 to guide the movement of the plunger unit 311, so that the plunger unit 311 can move axially in the drug storage bin 3122, and limit the shaking range of the plunger unit 311 to improve The stability of the plunger unit 311 during movement, thereby maintaining the stability of the liquid storage assembly during injection.

In some embodiments, the plunger unit 311 may include a plunger 3111 and a rotating rod 3112 , the plunger 3111 is screwed on the rotating rod 3112 , and one end of the plunger 3111 protrudes into the drug storage bin 3122 . When the third driving member 141 drives the transmission rod 3311 and the actuating member to rotate, the actuating member drives the rotating rod 3112 to rotate through the linkage, so that the plunger 3111 moves in the cartridge 312 to realize the injection of the injection. The plunger unit 311 adopts the screw fit structure of the plunger 3111 and the rotating rod 3112, which can complete the infusion under the condition that the torque output by the third driving member 141 is not high. Precise injection of liquid components, less wear between parts, can prolong their service life, reduce replacement costs, improve product quality of injection infusion equipment, and improve patient experience. In some embodiments, the plunger 3111 can be a cylindrical structure, the inner wall of the cylindrical structure is provided with an internal thread, the rotating rod 3112 is arranged in the inner cavity of the plunger 3111, the rotating rod 3112 is provided with an external thread, the internal thread and the external thread Threaded. Specifically, the threading direction of the internal thread and the external thread is the same as that of the rotating rod 3112, so that the internal thread and the external thread are screwed together more tightly during the rotating process of the rotating rod 3112, preventing the rotating rod 3112 from being separated from the plunger 3111.

In some embodiments, the linkage can include a fourth gear 3113, and the actuator can include a fifth gear 3312 capable of meshing with the fourth gear 3113. Both the actuator and the linkage use gears, so that the transmission rod 3311 and the plunger The gear meshing transmission between the units 311 is easy to realize, and the transmission accuracy and efficiency are high, the work is reliable, and the service life is long. It is more suitable for injection infusion equipment that needs to be used for a long time without intervals and requires high injection accuracy. of products. In some embodiments, the rotation rod 3112 and the transmission rod 3311 are vertically arranged, and the fourth gear 3113 and the fifth gear 3312 are also vertically meshed for transmission. The fourth gear 3113 and the fifth gear 3312 are preferably bevel gears. The tooth line has directionality, so two fifth gears 3312 need to be provided on the transmission rod 3311 to cooperate with the fourth gears 3113 on the first liquid storage assembly 110 and the second liquid storage assembly 120 respectively. When working, through the movement of transmission rod 3311, one fifth gear 3312 is meshed with one fourth gear 3113, and the other fifth gear 3312 is separated from another fourth gear 3113, so as to ensure that only one gear is used at the same time. The liquid storage component injects the injection liquid.

As shown in FIG. 9 , the transmission rod 3311 is driven by the moving drive member 332 to translate to the first liquid storage assembly 110 until the fourth gear 3113 of the first liquid storage assembly 110 meshes with a fifth gear 3312 on the transmission rod 3311 Finally, the transmission rod 3311 as a whole includes a fifth gear 3312 that rotates under the drive of the third drive member 141, the fifth gear 3312 drives the fourth gear 3113 of the first liquid storage assembly 110 to rotate, and the plunger 3111 of the first liquid storage assembly 110 Driven by the rotation of the rotating rod 3112, the injection liquid in the drug storage bin 3122 of the first liquid storage assembly 110 is pushed and squeezed, so that the injection liquid of the first liquid storage assembly 110 is output from the output port 313 . As shown in FIG. 10 , the transmission rod 3311 is driven by the moving drive member 332 to translate to the second liquid storage assembly 120 , to the fourth gear 3113 of the second liquid storage assembly 120 and another fifth gear 3312 on the transmission rod 3311 After meshing, the transmission rod 3311 as a whole includes the fifth gear 3312 to rotate under the drive of the third drive member 141, the fifth gear 3312 drives the fourth gear 3113 of the second liquid storage assembly 120 to rotate, and the plunger of the second liquid storage assembly 120 Driven by the rotation of the

rotating rod

3112, 3111 pushes and squeezes the injection liquid in the medicine storage chamber 3122 of the second liquid storage assembly 120, so that the injection liquid of the second liquid storage assembly 120 flows out from the output port 313 output.

Of course, in other embodiments, the transmission of the transmission rod 3311 and the rotation rod 3112 is not limited to the gear meshing transmission, and may also be other transmission methods, such as belt transmission and the like.

Of course, in other embodiments, the structure and motion of the plunger unit 311 are not limited to the threaded driving method of the plunger 3111 and the rotating rod 3112, and other driving methods can also be used, as long as the linear movement of the transmission rod 3311 can realize The plunger units 311 of the two liquid storage assemblies only need to switch and move. For example, a detachable connecting rod may also be arranged between the transmission rod 3311 and the plunger unit 311, and the linear movement of the transmission rod 3311 drives the detachable connecting rod to connect with the plunger unit 311 of a liquid storage assembly, and pulls the plunger unit 311 in the medicine While moving in the cylinder 312, it is disconnected from the plunger unit 311 of another liquid storage assembly.

It can be understood that, in addition to setting the transmission mechanism 331 as a transmission rod 3311 structure provided with a gear actuator, the transmission mechanism 331 can also have a variety of structures. In addition to the gear linkage on the plunger unit 311, there can also be multiple structures. kind of structure. For example, the transmission mechanism 331 may include an electromagnet, and the plunger unit 311 may be provided with a magnetic element capable of being attracted by the electromagnet. For another example, the transmission structure may be provided with a slot, and the plunger unit may be provided with a block capable of being inserted into the slot. In some embodiments, the transmission mechanism 331 can drive the plunger unit 311 to reciprocate along a linear direction.

The rotation rod 3112 is driven by the third drive member 141 to rotate. In some embodiments, the third drive member 141 includes a motor 341. The output shaft of the motor 341 is connected to the rotation rod 3112. The rotation of the output shaft of the motor 341 Drive the transmission of rotating bar 3112. In some embodiments, the motor 341 can share a circuit and switch with the moving driver 332, and the operation sequence of the moving driver 332 and the motor 341 is controlled by the control unit in the injection infusion device, which is convenient for operation and use of the patient.

In some embodiments, as shown in Figures 9-11, the output shaft of the motor 341 and the transmission rod 3311 can be transmitted through gear meshing, the gear transmission is easy to realize, and the transmission accuracy and efficiency are high, the work is reliable, the service life is long, and more It is suitable for injection infusion equipment, which needs to be used for a long time without intervals and requires high injection accuracy.

In some embodiments, the output shaft of the motor 341 is provided with a first gear 342, and the transmission rod 3311 is provided with a second gear 3313, and the first gear 342 and the second gear 3313 are meshed for transmission, so that The rotational torque is transmitted to the transmission rod 3311.

In some embodiments, the output shaft of the motor 341 may be arranged perpendicular to the transmission rod 3311 . Based on the direction in the figure, the first gear 342 on the output shaft of the motor 341 is arranged horizontally, the second gear 3313 on the transmission rod 3311 is vertically arranged, the first gear 342 and the second gear 3313 are meshed for transmission, and the transmission rod 3311 can be Driven by the motor 314, it moves horizontally.

In some embodiments, the first gear 342 and the second gear 3313 can be directly meshed for transmission, or can be transmitted through an intermediate gear. Specifically, a third gear 350 is provided between the first gear 342 and the second gear 3313, the third gear 350 is arranged vertically, the first gear 342 and the third gear 350 are vertically transmitted, the third gear 350 and the second gear 3313 Parallel transmission, so that the third gear 350 is respectively engaged with the first gear 342 and the second gear 3313 to transmit the rotational torque of the output shaft of the motor 341 to the transmission rod 3311 . Of course, the number of intermediate gears between the first gear 342 and the second gear 3313 is not limited to one, but may be two or more, and technicians can select and set according to actual needs.

Of course, the gear meshing transmission between the output shaft of the motor 341 and the transmission rod 3311 is not limited to the above-mentioned structure, and the number of gears and the way of cooperation are not limited to the above orientation and position. In other embodiments, the gear can be selected according to the use and transmission needs. quantity and combination.

In some embodiments, the actuating part on the transmission rod 3311 needs to be moved to cooperate with the linkage parts of different liquid storage components, so the transmission rod 3311 needs to be vertically arranged with the rotation rod 3112, along the axial direction of the transmission rod 3311, the transmission The length of the rod 3311 is greater than the width of the first liquid storage assembly 110 and the second liquid storage assembly 120 when they are side by side. Therefore, in order to optimize the internal structure of the injection device 300, rationally layout, save space, and reduce the volume of the injection device 300, the motor 341 It can be arranged on the same side as the transmission rod 3311 and parallel to the liquid storage assembly.

In some embodiments, as shown in FIG. 12 , the output shaft of the motor 341 can be arranged parallel to the transmission rod 3311, the output shaft of the motor 341 is provided with a first gear 342, and the transmission rod 3311 is provided with a second gear 3313. A gear 342 meshes with the second gear 3313 to transmit the rotational torque of the output shaft of the motor 341 to the transmission rod 3311, without additionally setting the third gear 350 as a transmission gear between the first gear 342 and the second gear 3313, The transmission gear can be saved, the cost can be reduced, and the weight of the injection liquid infusion equipment can be reduced. Based on the direction in the figure, the first gear 342 on the output shaft of the motor 341 is vertically arranged, the second gear 3313 on the transmission rod 3311 is vertically arranged, the first gear 342 and the second gear 3313 are meshed for transmission, and the transmission rod 3311 can Driven by the motor 314, it moves horizontally.

In some embodiments, as shown in FIG. 13 , the motor 341 and the transmission rod 3311 are arranged side by side along the axial direction of the transmission rod 3311, and the output shaft of the motor 341 is fixedly connected to the transmission rod 3311, such as flange fixing, etc., so that the motor The output shaft of 341 can drive the transmission rod 3311 to rotate, and at the same time, the motor 341 can linearly move with the transmission rod 3311 . The motor 341 and the transmission rod 3311 are directly connected and transmitted without additional transmission components, which further simplifies the structure, saves component costs, reduces torque loss during the transmission process, and improves the rotation transmission efficiency.

In some embodiments, in order to reduce the difficulty of the linear movement of the transmission rod 3311, a connecting sleeve can be fixed on the output shaft of the motor 341, and the end of the transmission rod 3311 is inserted into the connecting sleeve and can move linearly in the connecting sleeve. A circumferential limit structure is arranged between the sleeve and the transmission rod 3311, and there is no relative rotation between the connecting sleeve and the transmission rod 3311, so that the output shaft of the motor 341 can drive the transmission rod 3311 to rotate, and at the same time, the transmission rod 3311 can be connected If the center of the sleeve moves linearly, the motor 341 does not need to move with the transmission rod 3311, which improves the stability of the injection infusion device during operation and reduces energy consumption.

In some embodiments, in order to limit the linear movement stroke of the transmission rod 3311 , the injection device 100 may further include a limiting part 360 . The limiting part 360 is fixedly arranged, and can be fixedly installed with other fixed parts of the injection device 100 (such as an installation shell, etc.). In some embodiments, there may be two limiting parts 360, and the two limiting parts 360 respectively limit the forward and backward strokes of the transmission rod 3311 axially, so that the transmission rod 3311 has two stable positions, and When the transmission rod 3311 is stabilized at a certain stable position, the actuating member and a linkage member reach a state of optimal cooperation; when the transmission rod 3311 is stabilized at another stable position, the actuating member and another linkage member achieve a state of optimal cooperation, Ensure fit accuracy and transmission efficiency, while avoiding damage to components due to excessive fit.

Fig. 14 is a schematic structural diagram of an injection device 100 shown in some embodiments of the present specification. In some embodiments, the third driving member 141 (power source 140) of the injection device 100 may include a liquid pump 141, a second three-way tube 142, a first hydraulic chamber 143 disposed in the first liquid storage assembly 110 and The second hydraulic cavity 144 is disposed in the second liquid storage component 120 . The increase of the liquid volume in the first hydraulic chamber 143 can push the first piston 111 to make the injection fluid in the first liquid storage assembly 110 output, and the increase of the liquid volume in the second hydraulic chamber 144 can push the second piston 121 Thus, the injection liquid in the second liquid storage assembly 120 is output. The second three-way pipe 142 includes a first branch 1421 connecting the liquid pump 141 with the first hydraulic chamber 143 , and a second branch 1422 connecting the liquid pump 142 with the second hydraulic chamber 144 . The drive switching mechanism 131 may include a first on-off valve 1311 and a second on-off valve 1312 , the first on-off valve 1311 is arranged on the first branch 1421 , and the second on-off valve 1312 is arranged on the second branch 1422 . Through the opening and closing of the first switching valve 1311 and the second switching valve 1312, the liquid pump 141 can be switched and controlled to inject liquid into one of the first hydraulic chamber 143 and the second hydraulic chamber 144, so that the first hydraulic chamber 143 drives the output of injection fluid in the first liquid storage component 110 , or the second hydraulic chamber 144 drives the output of injection fluid in the second liquid storage component 120 . For example, when the first switch valve 1311 is opened and the second switch valve 1312 is closed, the injection fluid in the first liquid storage assembly 110 is output; when the second switch valve 1312 is opened and the second switch valve 1312 is closed, the second liquid storage Injection output in assembly 120. It can be understood that the third driving part of the injection device 100 may include an air pump, a third three-way tube 142 , a first pneumatic chamber provided in the first liquid storage assembly 110 and a second air chamber provided in the second liquid storage assembly 120 . In the pneumatic chamber, the working principle of the third driving part including the air pump is similar to the driving principle of the third driving part including the liquid pump 141 , which will not be repeated here.

In some embodiments, the driving switching mechanism 131 may include a moving base for moving the third driving member, and the moving base may drive the third driving member to reciprocate, so that the third driving member drives the first liquid storage assembly 110 and the second liquid storage assembly 110 . The injection solution in one of the liquid storage components 120 is output. In some embodiments, the first piston 111 is provided with a first piston rod, and the second piston 121 is provided with a second piston rod, and the mobile base drives the third driving member, so that the third driving member can switch to the first piston. The rod is mechanically coupled to one of the second piston rods, and the third driving member can push the piston rod mechanically coupled thereto, so that the corresponding piston pushes the corresponding injection solution in the liquid storage assembly to output.

In some embodiments, the injection device 100 may further include an injection tube 370, one end of the injection tube 370 is disposed in the liquid outlet 150, and the other end of the injection tube 370 protrudes for connecting with a syringe or injecting directly to the patient. The injection liquid in the liquid storage component 110 and the second liquid storage component 120 is output through the corresponding injection tube 370 . In some embodiments, when the first liquid storage component 110 and the second liquid storage component 120 share one liquid outlet 150 , the first liquid storage component 110 and the second liquid storage component 120 share one injection tube 370 . In some embodiments, the injection tube 370 may be a needle or a flexible or hard tube connected to a needle or the like.

Fig. 15 is a schematic diagram of the structure of the injection device installed in the installation shell according to some embodiments of the present specification. Fig. 16 is a cross-sectional view of the injection device shown in Fig. 15 mounted on the mounting housing. As shown in Figure 15 and Figure 16, the injection device 100 includes the above-mentioned injection device 100 and the installation housing 700, the injection device 100 is installed and fixed in the installation housing 700, and the installation housing 700 is provided with installation holes, the installation holes are used for injection equipment The injection tube 370 of the injection device 100 protrudes from the installation housing 700 to facilitate the use of the injection device 100 .

In some embodiments, the cross-sectional shape of the installation housing 700 may be square, circular, elliptical, polygonal or other irregular shapes, which are not limited here, as long as the installation of the injection device 100 can be realized.

In some embodiments, as shown in FIG. 16 , the cartridge 612 of the injection device 100 can be fixed to the inner wall of the installation housing 700 to realize the fixing of the liquid storage assembly in the installation housing 700 . In some embodiments, the receiving compartment 3121 of the drug cartridge 312 of the injection device 100 can be fixedly installed with the inner wall of the installation housing 700 . In some embodiments, the limiting part 360 of the injection device 100 can be fixedly installed with the installation shell 700 of the injection device 100 to realize the fixing of the transmission rod 3311 in the installation shell 700 .

The present invention will be described below by taking an injection device applied to an insulin pump as an example. Insulin pump is an insulin input device controlled by artificial intelligence. It simulates the physiological secretion mode of insulin by continuous subcutaneous infusion of insulin, so as to regulate blood sugar. The insulin pump consists of a casing, a monitoring unit, a control unit, a pump, a syringe assembly, an infusion tube, and a needle injector. The monitoring unit monitors the patient’s blood sugar level in real time and transmits the blood sugar level to the control unit. Monitor the patient's blood glucose profile and control the injection of the syringe assembly. The pump presses the medicament into the syringe assembly, and the infusion tube is connected to the syringe assembly. The pump and the syringe assembly are located in the casing, the infusion tube extends out of the casing, and the needle injector is set at the front end of the infusion tube away from the syringe and pierced into the patient's skin. Conventionally, the abdominal wall is used to push the drug under the patient's skin by driving the syringe assembly. However, during the continuous injection of insulin by the insulin pump, the patient will experience hypoglycemia. At this time, glucagon needs to be injected to raise blood sugar.

The insulin injection device formed by applying the injection device to the insulin pump includes two liquid storage components, the two liquid storage components are respectively filled with insulin and glucagon, and when the coil of the electromagnet 3321 is energized in the forward direction, the actuating part Cooperate with the linkage of the liquid storage assembly equipped with insulin, and the gear is switched to the insulin gear; when the coil of the electromagnet 3321 is energized in reverse, the actuator cooperates with the linkage of the liquid storage assembly equipped with glucagon, and the gear is switched to the insulin gear. Switch to the glucagon gear. Certainly, in other embodiments, when the coil of the electromagnet 3321 is energized in the forward direction, the gear is switched to the glucagon gear; when the coil of the electromagnet 3321 is energized in the reverse direction, the gear is switched to the insulin gear. The present invention switches the output of glucagon and insulin through a set of drive systems, simplifies the internal structure of the insulin pump, saves materials and costs, reduces the difficulty of assembly, and at the same time reduces the volume of the insulin pump, optimizes the shape, reduces the weight, and makes It is more convenient to carry around.

Insulin injection equipment adopts different workflows according to the monitored blood glucose values, as follows:

Situation 1: When the control unit receives high blood sugar, it checks whether it is the current insulin gear, if yes, injects after conversion based on the difference between the current blood sugar and the target blood sugar; if not, controls the coil of the electromagnet 3321 to be After energizing, switch the gear to the insulin gear, and then inject according to the difference between the current blood sugar and the target blood sugar;

Situation 2: When the control unit receives a lower blood sugar value, it checks whether it is currently the insulin gear, and if so, controls the coil of the electromagnet 3321 to be energized in reverse, and after switching the gear to the glucagon gear, Inject according to the difference between current blood sugar and target blood sugar exchange; if not, then inject according to the difference between current blood sugar and target blood sugar;

Situation 3: When the control unit receives the blood glucose value within the normal range, it will make a comprehensive judgment based on the recently received blood glucose value. The switching method is the same, and the injection is converted according to the difference between the predicted blood glucose value and the target blood glucose; The difference between the blood sugar level and the target blood sugar is converted and then injected.

Fig. 17 is a connection block diagram of an injection system according to some embodiments of the present specification. Fig. 18 is a workflow diagram of the injection system according to some embodiments of the present specification. As shown in Figure 17, the embodiment of this specification also provides an injection system 1700, the injection system 1700 includes an injection device 100, a controller 170 and a blood glucose monitoring device 180, the injection device 100 includes a first liquid storage component 1110 and a second liquid storage component 1120 and output control component 130 . The injection device here can be any one of the injection devices shown in Figs. 1-16. The injection liquid stored in the first liquid storage assembly 1110 includes insulin, the injection liquid stored in the second liquid storage assembly 1120 includes glucagon, and the controller 170 is used to control the output control assembly 130, so that the output control assembly 130 switches the control Insulin in the first liquid storage component 1110 or glucagon in the second liquid storage component 1120 . Regarding the specific way of the output control component 130 switching and controlling the output of the injection fluid in the first liquid storage component 1110 or the second liquid storage component 1120 , please refer to the relevant contents in FIGS. 1-16 . As shown in Figure 18, the controller 1340 is configured to: control the blood glucose monitoring device 180 to obtain the blood glucose value of the injection subject; the controller 170 controls the output control component 130 based on the blood glucose value, so that the output control component 130 switches to control the first liquid storage component The insulin in 1110 or the glucagon in the second liquid storage component 1120 is output, so that the blood sugar level of the injection subject can be kept within a reasonable range.

In some embodiments, as shown in FIG. 18 , the output control component 130 is controlled based on the blood glucose value, so that the output control component 130 switches and controls the first liquid storage component 110 and one of the second liquid storage component 120. The injection output includes: determining the insulin output in the first liquid storage component 1110 based on the blood glucose value acquired by the blood glucose monitoring device 180 . In some embodiments, the output control component 130 is controlled based on the blood glucose level, so that the output control component 130 switches and controls the output of the injection fluid in one of the first liquid storage component 110 and the second liquid storage component 120, including based on The blood glucose value obtained by the blood glucose monitoring device 180 determines the output amount of glucagon in the second liquid storage component 1120 . In some embodiments, insulin output and glucagon output correlate to blood glucose levels. The higher the blood sugar level, the more insulin needs to be delivered, and the lower the blood sugar level, the more glucagon needs to be delivered. In some embodiments, the specific corresponding relationship between the blood glucose level and the output of insulin and the output of glucagon can be determined according to medical knowledge and/or clinical data.

In some embodiments, as shown in FIG. 18 , the output control component 130 is controlled based on the blood glucose level, so that the output control component 130 switches and controls the injection fluid in one of the first liquid storage component 110 and the second liquid storage component 120 Output, including: determining the blood sugar status of the injection subject based on the blood sugar value; controlling the output control component 130 based on the blood sugar status, so that the output control component 130 switches and controls the blood sugar in one of the first liquid storage component and the second liquid storage component Injection output. Specifically, blood glucose conditions may include hyperglycemic conditions, hypoglycemic conditions, and normal conditions. As an example only, when the blood sugar condition is a hyperglycemia condition, the controller 170 makes the output control component 130 switch to control the insulin output in the first liquid storage component 110; 130 switches and controls the output of glucagon in the second liquid storage assembly 120; when the blood sugar condition is normal, the controller 170 makes the output control assembly 130 control the insulin in the first liquid storage assembly 110 and the second liquid storage assembly 120 None of the glucagon is exported.

In some embodiments, the output control component 130 is controlled based on the blood glucose status, so that the output control component 130 switches to control the output of the injection fluid in one of the first liquid storage component 110 and the second liquid storage component 120, including: when based on When the blood sugar status is normal, the controller 1340 can determine the blood sugar change trend of the injection subject; based on the blood sugar change trend, control the output control component 130, so that the output control component 130 switches and controls the first liquid storage component 110 and the second liquid storage component. One of the 120 injections is output. For example, when the blood sugar has a tendency to rise to become a hyperglycemic condition, the controller 170 makes the output control component 130 switch to control the insulin output in the first liquid storage component 110; , when blood sugar has a tendency to rise.

The basic concept has been described above, obviously, for those skilled in the art, the above detailed disclosure is only an example, and does not constitute a limitation to this description. Although not expressly stated here, those skilled in the art may make various modifications, improvements and corrections to this description. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

Meanwhile, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "some embodiments", and/or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "some embodiments" or "one embodiment" or "an alternative embodiment" two or more times in this specification in different places do not necessarily refer to the same embodiments. example. In addition, certain features, structures or characteristics in one or more embodiments of this specification may be properly combined.

In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of numbers and letters, or the use of other names are not used to limit the sequence of processes and methods in this specification. While the foregoing disclosure has discussed by way of various examples some embodiments of the invention that are presently believed to be useful, it should be understood that such detail is for illustrative purposes only and that the appended claims are not limited to the disclosed embodiments, but rather, the claims The claims are intended to cover all modifications and equivalent combinations that fall within the spirit and scope of the embodiments of this specification. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by a software-only solution, such as installing the described system on an existing server or mobile device.

In the same way, it should be noted that in order to simplify the expression disclosed in this specification and help the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this specification, sometimes multiple features are combined into one embodiment, drawings or descriptions thereof. This method of disclosure does not, however, imply that the subject matter of the specification requires more features than are recited in the claims. Indeed, embodiment features are less than all features of a single foregoing disclosed embodiment.

In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of the embodiments use the modifiers "about", "approximately" or "substantially" in some examples. grooming. Unless otherwise stated, "about", "approximately" or "substantially" indicates that the stated figure allows for a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that can vary depending upon the desired characteristics of individual embodiments. In some embodiments, numerical parameters should take into account the specified significant digits and adopt the general digit reservation method. Although the numerical ranges and parameters used in some embodiments of this specification to confirm the breadth of the range are approximations, in specific embodiments, such numerical values are set as precisely as practicable.

Each patent, patent application, patent application publication, and other material, such as article, book, specification, publication, document, etc., cited in this specification is hereby incorporated by reference in its entirety. Application history documents that are inconsistent with or conflict with the content of this specification are excluded, and documents (currently or later appended to this specification) that limit the broadest scope of the claims of this specification are also excluded. It should be noted that if there is any inconsistency or conflict between the descriptions, definitions, and/or terms used in the accompanying materials of this manual and the contents of this manual, the descriptions, definitions and/or terms used in this manual shall prevail .

Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other modifications are also possible within the scope of this description. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

An injection device, wherein the injection device includes a first liquid storage assembly, a second liquid storage assembly, and an output control assembly;

The output control component switches and controls the output of injection fluid in one of the first liquid storage component and the second liquid storage component.
The injection device according to claim 1, wherein the injection device includes a liquid outlet, and the output control component switches and controls one of the first liquid storage component and the second liquid storage component to communicate with the liquid outlet .
The injection device according to claim 2, wherein the output control assembly includes an adjustment assembly; when at least part of the adjustment assembly moves, it can switch and control the communication between the first liquid storage assembly or the second liquid storage assembly. The liquid outlet.
The injection device according to claim 3, wherein the adjustment assembly includes an adjustment pipe and a moving part located in the adjustment pipe, the adjustment pipe communicates with the liquid outlet, and the adjustment pipe includes a first input port and the second input port, the first input port communicates with the first liquid storage assembly, the second input port communicates with the second liquid storage assembly, and the moving part can control the first One of the input port and the second input port communicates with the liquid outlet.
The injection device according to claim 4, wherein the moving part includes a sealing plug and a first driving member, the sealing plug is located in the regulating pipeline, the sealing plug is provided with a communication channel, and the first driving member The component drives the sealing plug to move in the regulating pipe, so that the communication channel communicates with one of the first input port and the second input port to the liquid outlet.
The injection device according to claim 5, wherein the adjustment assembly further comprises a first transfer tube and a second transfer tube, the first transfer tube connects the first input port and the liquid storage of the first liquid storage assembly The second transfer tube connects the second input port and the liquid storage chamber of the second liquid storage assembly.
The injection device according to claim 6, wherein at least one of the first liquid storage assembly and the second liquid storage assembly comprises a liquid storage housing and a movement plug located in the liquid storage housing , the movement plug and the liquid storage housing form the liquid storage bin; when the movement plug moves, the injection solution in the liquid storage bin can be output.
The injection device according to claim 7, wherein the liquid storage housing comprises a bottle mouth, a bottle body and a sealing cap covering the bottle mouth, and the movement plug is arranged on the bottle body away from the bottle mouth The end of the adapter tube extends through the sealing cover of the corresponding liquid storage assembly into the liquid storage chamber of the corresponding liquid storage assembly.
The injection device according to claim 8, wherein at least one liquid storage assembly of the first liquid storage assembly and the second liquid storage assembly includes a push rod, and the push rod of the liquid storage assembly is connected to the corresponding said liquid storage assembly. The movement plug of the reservoir assembly abuts.
The injection device according to claim 8, wherein the injection device further comprises a fixing assembly and an installation housing, the installation housing forms an installation cavity, and the liquid outlet is arranged on the installation housing and connected to the installation cavity The adjustment assembly is arranged in the installation cavity; the fixing assembly is arranged in the installation cavity, and is used to fix the liquid storage housing of the first liquid storage assembly and/or the second storage The liquid storage housing of the liquid assembly.
The injection device according to claim 10, wherein,

The fixing assembly includes a first fixing seat, the first fixing seat has a first fixing groove, and the first fixing groove is used for installing the bottle mouth of the liquid storage housing of the first liquid storage assembly; and/or,

The fixing assembly includes a second fixing seat, and the second fixing seat has a second fixing groove, and the second fixing groove is used for installing the bottle mouth of the liquid storage housing of the second liquid storage assembly.
The injection device according to claim 11, wherein the fixing assembly further includes a first fixing buckle, the first fixing buckle is arranged on the first fixing seat and is arranged corresponding to the first fixing groove , the first fixing buckle can abut against the outer wall of the bottle mouth of the liquid storage housing of the first liquid storage assembly extending into the first fixing groove; and/or,

The fixing assembly also includes a second fixing buckle, the second fixing buckle is arranged on the second fixing seat, and is set corresponding to the second fixing groove, and the second fixing buckle can be inserted into the The outer wall of the bottle mouth of the liquid storage housing of the first liquid storage assembly of the second fixing groove abuts against.
The injection device according to claim 2, wherein the injection device comprises a first driving member and a second driving member, the first driving member and the second driving member are respectively used to drive the first liquid storage The injection solution in the component and the second liquid storage component is output.
The injection device according to claim 1, wherein the injection device includes a third drive member, and the output control assembly includes a drive switching mechanism for switching and controlling the power output of the third drive member to drive the third drive member. The injection solution in one of the first liquid storage assembly and the second liquid storage assembly is output.
The injection device according to claim 14, wherein the drive switching mechanism comprises a moving drive member and a transmission mechanism, the moving drive member drives the transmission mechanism to move, and the transmission mechanism moves the third drive member The power output switch is transmitted to one of the first liquid storage assembly and the second liquid storage assembly.
The injection device according to claim 15, wherein both the first liquid storage assembly and the second liquid storage assembly include a plunger unit for pushing out the injection liquid, and the plunger unit is arranged on the The transmission unit transmits the power output of the third drive member to the plunger unit of the first liquid storage assembly or the plunger unit of the second liquid storage assembly, and the moving drive member drives the transmission mechanism to move linearly so that the transmission mechanism is in transmission connection with the plunger unit of one of the first liquid storage assembly and the second liquid storage assembly.
The injection device of claim 16, comprising:

The first liquid storage assembly and the second liquid storage assembly further include a linkage, and the linkage is arranged on the plunger unit;

The transmission mechanism includes a transmission rod, on which an actuating member is provided, and the moving driving member drives the transmission rod to move linearly, so as to drive the actuating member to switch the linkage with the first liquid storage assembly. Cooperate with the linkage member of one of the second liquid storage components to drive the corresponding plunger unit to move.
The injection device according to claim 16, wherein the moving driving member comprises an electromagnet, and a permanent magnet with polarity is provided on the end of the transmission rod close to the electromagnet, by changing the The energizing direction of the coil is used to drive the transmission mechanism to move linearly towards or away from the electromagnet.
The injection device according to claim 16, wherein the moving driving member comprises memory metal, the transmission mechanism is connected with the memory metal, and the memory metal deforms after being electrified to drive the transmission rod to move linearly.
The injection device according to claim 16, wherein the moving drive member includes a linear actuator, the linear actuator includes a telescopic rod, the transmission rod is connected to the telescopic rod, and the telescopic rod telescopically drives the transmission mechanism Move linearly.
The injection device according to claim 17, wherein the plunger unit comprises a plunger and a rotating rod, the plunger is screwed to the rotating rod, and the third driving member drives the transmission rod and the rotating rod. The actuating member rotates, and the actuating member drives the rotating rod to rotate through the linkage member to move the plunger.
The injection device according to claim 21, wherein the plunger is a cylindrical structure, the rotating rod is arranged in the inner cavity of the plunger; the inner wall of the cylindrical structure is provided with internal threads, and the The rotating rod is provided with external threads.
The injection device according to claim 21, wherein the third driving member comprises a motor, and an output shaft of the motor is drivingly connected to the transmission rod.
The injection device according to claim 23, wherein the output shaft of the motor and the transmission rod are geared for transmission.
The injection device according to claim 24, wherein the output shaft of the motor is arranged vertically or parallel to the transmission rod, the output shaft of the motor is provided with a first gear, and the transmission rod is provided with a second gear. Two gears, the first gear and the second gear are meshed for transmission, so as to transmit the rotational torque of the output shaft of the motor to the transmission rod.
The injection device according to claim 23, wherein the motor and the transmission rod are arranged side by side along the axis of the transmission rod, the output shaft of the motor is fixedly connected to the transmission rod, and the motor It can move linearly with the transmission rod.
The injection device according to claim 23, wherein, the motor and the transmission rod are arranged side by side along the axis of the transmission rod, a connecting sleeve is fixed on the output shaft of the motor, and the transmission rod The end is inserted into the connecting sleeve and can move linearly in the connecting sleeve, and a circumferential limiting structure is provided between the connecting sleeve and the transmission rod.
The injection device of claim 21, wherein the linkage comprises a fourth gear and the actuator comprises a fifth gear engageable with the fourth gear.
The injection device according to claim 28, wherein the transmission rod includes two fifth gears, and through the movement of the transmission rod, one fifth gear meshes with one fourth gear, and the other fifth gear meshes with one fifth gear. The gear is separated from another fourth gear.
The injection device according to claim 17, wherein the first liquid storage assembly and the second liquid storage assembly further include a cartridge for storing the injection liquid, and the plunger unit One end can move in the cartridge to control the injection of the injection liquid in the cartridge, and the other end of the plunger unit is connected to the linkage;

The drug cartridge includes a storage bin, a drug storage bin and a sleeve, the drug storage bin and the sleeve are arranged side by side in the storage bin along the axial direction of the storage bin, and one end of the plunger unit extends into the drug storage bin, and can move in the drug storage bin, and the sleeve limits the plunger unit.
The injection device according to claim 16, wherein the injection device further comprises a limiting part that limits the linear movement stroke of the transmission mechanism.
An injection system, wherein the injection device, the blood glucose monitoring device and the controller according to any one of claims 1-31 are applied, the injection liquid stored in the first liquid storage component of the injection device includes insulin, and the The injection liquid stored in the second liquid storage component includes glucagon; the controller is used to control the output control component, so that the output control component switches and controls the insulin in the first liquid storage component and the second storage liquid the glucagon output stored in one of the components;

The controller is configured as:

controlling the blood glucose monitoring device to obtain the blood glucose value of the subject to be injected;

The output control component is controlled based on the blood glucose level, so that the output control component switches and controls the output of the injection fluid in one of the first liquid storage component and the second liquid storage component.
The injection system according to claim 32, wherein said output control component is controlled based on said blood glucose level, so that said output control component switches to control one of the first liquid storage component and the second liquid storage component The injection output, including:

Based on the blood glucose level, determining the output volume of the injection solution in the first liquid storage component; and/or

The output volume of the injection fluid in the second fluid storage component is determined based on the blood glucose level.
The injection system according to claim 32, wherein said output control component is controlled based on said blood glucose level, so that said output control component switches to control one of the first liquid storage component and the second liquid storage component The injection output in the, including:

The blood sugar status of the subject to be injected is determined based on the blood sugar value; the blood sugar status includes a hyperglycemia status, a hypoglycemia status and a normal status;

The output control component is controlled based on the blood glucose condition, so that the output control component switches and controls the output of the injection fluid in one of the first liquid storage component and the second liquid storage component.
The injection system of claim 34, wherein:

The controlling the output control component based on the blood sugar condition, so that the output control component switches and controls the injection fluid output in one of the first liquid storage component and the second liquid storage component, includes:

When the blood sugar status is normal based on the blood sugar status, determine the blood sugar change trend of the subject to be injected;

Based on the blood sugar variation trend, the output control component is controlled, so that the output control component switches and controls the output of the injection in one of the first liquid storage component and the second liquid storage component.