CN113082383A

Movatterモバイル変換

Info

Publication number: CN113082383A
Application number: CN202110468799.7A
Authority: CN
Inventors: 杨斌堂
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-07-09
Anticipated expiration: 2041-04-28
Also published as: CN113082383B

Abstract

Translated fromChinese

本发明提供了一种注射器以及注射平台，注射器包括支撑壳体、第一弹性体、注射组件，所述第一弹性体、注射组件均安装在所述支撑壳体上且所述注射组件能够在人力驱动模式或机电驱动模式的驱使下抽取药液并能够在第一弹性体和注射组件自身的驱使下将所述注射组件中抽取的所述药液排出。本发明操作简单，使用方便，被注射者可自行实施注射作业，节省了医疗资源，节约了被注射者的时间，筒体的各个状态的切换的结构设计巧妙，整个设备均采用常规部件制作，价格低廉，普适性好，能够满足一次性使用的要求。

The present invention provides a syringe and an injection platform. The syringe includes a support housing, a first elastic body, and an injection assembly. The first elastic body and the injection assembly are all mounted on the support housing, and the injection assembly can be The medicinal liquid is drawn under the driving of the human driving mode or the electromechanical driving mode, and the medicinal liquid extracted from the injection assembly can be discharged under the driving of the first elastic body and the injection assembly itself. The invention is simple to operate and convenient to use, the injectee can perform the injection operation by himself, saves the medical resources, saves the injectee's time, the structure design of the switching of each state of the cylinder is ingenious, and the whole device is made of conventional components, The price is low, the universality is good, and it can meet the requirements of one-time use.

Description

Injector and injection platform

Technical Field

The invention relates to the field of medical instruments, in particular to an injector and an injection platform.

Background

There are several types of manually activated syringes currently on the market for injecting drug solutions, drug suspensions, vaccines, medications and other liquid drugs. These syringes are required to be operated by medical practitioners to inject drugs into patients through the syringes, but are difficult to use independently of the patient.

Since some diseases require patients to inject drugs or products at regular time every day, and since the injected person cannot complete injection by himself, the injection needs to be completed by medical staff in hospital every day, which wastes a lot of medical resources and wastes a lot of time of the injected person.

Patent document CN103182115A discloses a plunger for a retractable syringe, a retractable syringe and a method of assembling the same, the syringe comprising a retractable needle, said plunger comprising a plunger rod capable of engaging said retractable needle, a plunger outer, a control member connected to said plunger rod and a spring, wherein said plunger rod, said plunger outer and said control member cooperate to releasably maintain said spring in an initial compressed state, but the syringe still requires the assistance of a medical staff at the time of injection, wasting a lot of time.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present invention to provide an injector and an injection platform.

According to the invention, the injector comprises a support shell, a first elastic body and an injection assembly; the first elastic body and the injection assembly are mounted on the supporting shell, the injection assembly can extract liquid medicine under the driving of a manual driving mode or an electromechanical driving mode, and the liquid medicine extracted from the injection assembly can be discharged under the driving of the first elastic body and the injection assembly.

Preferably, the injection device further comprises a first locking assembly and a first reservoir, the injection assembly comprises a cylinder, a first piston and an injection head, the cylinder, the first locking assembly and the first reservoir are all mounted on the support housing, and the cylinder can move relative to the support housing; the injection head is arranged on the barrel, a first barrel cavity is arranged on the barrel, a first piston end is arranged on the first piston, the first piston end extends into the first barrel cavity and can slide relative to the barrel, a first accommodating space is formed between the first piston end and the barrel, and the first accommodating space is communicated with the first liquid storage device through a one-way valve; two ends of the first elastic body are respectively connected with the supporting shell and the cylinder body; the cylinder comprises an initial position, a liquid storage position and an injection position, the first piston can drive the cylinder to move from the initial position in the first direction and stop at the liquid storage position under the driving of external force, and at the moment, the first piston continues to move in the first direction under the driving of the external force and pumps liquid medicine with a preset volume in the first liquid storage device into the first accommodating space and then is locked by the first locking assembly;

after the first locking assembly is unlocked, the cylinder body is driven by the elastic force of the first elastic body to move from the liquid storage position to the injection position in the second direction, the first piston moves in the second direction under the action of the external atmospheric pressure and enables the liquid medicine in the first accommodating space to flow out through the injection head, and the first locking assembly comprises a first elastic body and a second elastic body, wherein: the first direction is opposite the second direction, and the initial position is between the reservoir position and the injection position.

Preferably, the injection assembly further comprises a second piston and a first connecting rod, the barrel being provided with a second barrel chamber; the first piston and the second piston are both arranged on the first connecting rod; a second piston end is arranged on the second piston, extends into the cavity of the second cylinder and forms a second accommodating space with the cylinder; the first connecting rod can drive the first piston and the second piston to move synchronously so as to enable the second accommodating space to be enlarged or reduced, and the second accommodating space is in a vacuum environment.

Preferably, the first locking assembly includes a first rolling body, a second elastic body, a first locking housing, and a first driving body; the injection assembly further comprises a second connecting rod and a third connecting rod, and a movement channel is arranged on the barrel; one end of the second connecting rod is mounted on the first connecting rod, and the other end of the second connecting rod is connected with one end of the third connecting rod; the first locking shell is installed through the support frame on the support shell, the other end of third connecting rod passes first locking shell and with form first wedge space between the first locking shell, first rolling element, second elastomer and width grow gradually have been arranged along first direction in proper order in first wedge space.

Preferably, the first driving body includes a lever body, a fixed shaft, and an opening and closing member; the lever body is rotatably arranged on the support frame through the fixed shaft, the switch piece is arranged at one end of the lever body, and when the switch piece is operated, one end of the lever body can be driven to rotate around the fixed shaft, so that the other end of the lever body drives the first rolling body to move towards a first direction, and the first locking assembly is unlocked; the switch piece adopts any one of the following structures:

the switch member comprises an operating handle and a curved elastic piece, the curved elastic piece is mounted on the supporting shell, one surface of the curved elastic piece is connected with one end of the lever body, and the other surface of the curved elastic piece is connected with the operating handle; when the first locking assembly is locked, the bulging surface of the curved elastic piece protrudes towards one side of the operating handle; when the first locking assembly is unlocked, the bulging surface of the curved elastic sheet protrudes towards one side of the lever body;

the switch member comprises an operating handle mounted on the support housing, the operating handle being an elastic-plastic member.

Preferably, a first blocking table is arranged on the supporting shell, and a second blocking table is arranged on the cylinder along the circumferential direction; when the cylinder moves towards the first direction, the second blocking table is blocked by the first blocking table, so that the cylinder stops at the liquid storage position; when the barrel moves towards the second direction, the barrel is blocked by the support frame so that the barrel stops to the injection position.

Preferably, one end of the support housing facing the second direction is provided with an injection end housing and a first protection sleeve; the first protective sleeve is detachably arranged at one end of the injection end shell and jointly forms a third accommodating space, and when the barrel is in an initial position, the end part of the injection head penetrates through the other end of the injection end shell and extends into the third accommodating space; a second protective sleeve is detachably sleeved at one end of the supporting shell facing to the second direction; a fourth accommodating space is formed between the support shell and the second protective sleeve, and the fourth accommodating space is internally provided with sterilized cotton, a sharp tool and a second liquid storage device; the sterilizing cotton is connected with the first protective sleeve, and the second protective sleeve can move towards the support shell under the driving of external force so as to drive the sharp tool to puncture the second liquid storage device and further enable the sterilizing liquid of the second liquid storage device to flow into the sterilizing cotton.

Preferably, the drive device further comprises a first drive body and a second drive body, the first drive body and the second drive body are both mounted on the support housing, and the first drive body and the second drive body are configured as follows:

-the first and second drive bodies are both a smart material or a phase variant;

the first and second drivers are both magnetic drivers, wherein the first connecting rod is a magnet or a ferromagnetic body, and the first driver can magnetically drive the first connecting rod to move towards a first direction;

the second driving body can drive the operating handle of the first locking assembly to move by magnetic force; the first driving body and the second driving body both adopt electromagnets.

Preferably, the locking device further comprises a second locking assembly, wherein the second locking assembly comprises a second rolling body, a third elastic body, a blocking piece, a second locking shell and a first driving body; the second locking shell is mounted on the support frame, a second wedge-shaped space is formed between the third connecting rod and the second locking shell, a third elastic body, a second rolling body and a blocking piece are sequentially arranged in the second wedge-shaped space along the first direction, and the width of the second wedge-shaped space is gradually reduced; a fourth elastic body is arranged between the support frame and the second connecting rod and sleeved on the third connecting rod; the second connecting rod is provided with a fourth connecting rod, when the second connecting rod moves towards the second direction, the fourth connecting rod can be driven to move, so that the blocking piece can be extruded to deform, the second rolling body is driven to move towards the second direction, and at the moment, the second rolling body allows the third connecting rod to move towards the first direction; the second locking assembly is arranged in any one of the following modes:

a fifth elastic body is arranged between one end of the second lock housing facing the first direction and the support frame;

-said second rolling elements are elastomeric;

-the second lock housing is an elastomer.

According to the injection platform provided by the invention, one or more injectors can be mounted, and the injection platform comprises a control mechanism and a power mechanism in an electromechanical driving mode; the control mechanism is in signal connection with the power mechanism, and the power mechanism can drive the injection assembly to act.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention has simple operation and convenient use, and the person to be injected can carry out injection operation by himself, thereby saving medical resources and saving the time of the person to be injected.

2. The one-way locking assembly is arranged, unlocking can be conveniently and quickly achieved, quantitative control of the injection quantity of the medicament can be achieved through the design of the volume of the first liquid storage device or the control of the movement stroke of the first piston relative to the cylinder, and the one-way locking assembly is high in practicability.

3. The injection device can realize injection in a manual or non-manual mode in the injection process, can be specifically set according to actual application scenes, and has a flexible structure and good universality.

4. The switching structure of each state of the cylinder body is ingenious in design, the whole device is made of conventional parts, the price is low, and the requirement of disposable use can be met.

5. According to the invention, the fourth elastic body is arranged between the support frame and the second connecting rod, and the action of a doctor in the medicine pushing process can be simulated by matching springs with different models and cavity sizes of different negative pressure cavities, so that the medicine pushing speed is more stable, and the injected person has better injection experience.

6. In the invention, the first piston does not need to apply extra energy in the process of moving towards the second direction, and the injection can be completed only by the negative pressure and the elastic potential energy of the device.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the cartridge of the present invention in a storage position;

FIG. 2 is a schematic view of the barrel in an injecting position with the first receiving space containing no medical fluid;

FIG. 3 is a schematic structural view of the barrel in an injection position and the first accommodating space after injection of the liquid medicine is completed;

FIG. 4 is a schematic structural view of the barrel in an initial position, wherein the barrel is provided with a first protective sleeve and a second protective sleeve;

FIG. 5 is a schematic view of the barrel in an injection position with the first and second protective sheaths mounted thereon;

FIG. 6 is a schematic structural view of the cartridge in the storage position of embodiment 2, wherein the cartridge is provided with a first protective sleeve and a second protective sleeve;

FIG. 7 is a schematic view showing the structure of the cartridge in the injection site according to example 2, without a protective cap attached to the cartridge;

FIG. 8 is a schematic view showing the structure of the injection device of example 2 after the injection, in which the stopper has been damaged;

FIG. 9 is a schematic view of the structure of example 2 during injection;

FIG. 10 is a schematic view of the second locking assembly with a fifth elastomer mounted thereon;

FIG. 11 is a block diagram of an injection workflow;

fig. 12 is a schematic structural view of the cylinder to which the first and second drivers are attached.

The figures show that:

supporthousing 1operating handle 24

First elastomer 2 curved surface elastic sheet 25

First blocking table 26 ofbarrel 3

Second stop 27 offirst piston 4

Injection head 5injection end housing 28

First barrel Chamber 6 firstprotective sheath 29

First accommodation space 7 andthird accommodation space 30

Secondprotective sleeve 31 of one-way valve 8

Fourth accommodation space 32 offirst reservoir 9

First piston end 10 cotton wool 33

Second piston 11sharps 34

The first connectingrod 12 and thesecond reservoir 35

Second barrel chamber 13first drive body 36

Second piston end 14second drive body 37

Second rollingelements 38 ofsecond accommodation space 15

Thirdelastic body 39 of second connectingrod 16

Third connectingrod 17 stops 40

Fourthelastic body 41 ofmovement channel 18

Fourth connectingrod 42 ofsupport frame 19

First rollingelement 20first lock case 43

Secondelastic body 21 andsecond lock case 44

The fifthelastic body 45 of the lever body 22

Fixed shaft 23

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1:

the invention provides a syringe, as shown in fig. 1 to 5, which comprises asupport shell 1, an injection assembly, a first locking assembly, a first elastic body 2 and a firstliquid storage device 9, wherein the first elastic body 2 and the injection assembly are both arranged on thesupport shell 1, and the injection assembly can extract liquid medicine under the driving of a manual driving mode or an electromechanical driving mode and can discharge the liquid medicine extracted from the injection assembly under the driving of the first elastic body 2 and the injection assembly.

Further, the first elastic body 2 is preferably a spring, the injection assembly comprises acylinder 3, afirst piston 4 and aninjection head 5, thecylinder 3, a first locking assembly and afirst reservoir 9 are all mounted on thesupport housing 1, and thecylinder 3 can move relative to thesupport housing 1. Theinjection head 5 is installed on thecylinder 3, afirst cylinder chamber 6 is arranged on thecylinder 3, afirst piston end 10 is arranged on thefirst piston 4, thefirst piston end 10 extends into thefirst cylinder chamber 6 and can slide relative to thecylinder 3, a firstaccommodating space 7 is formed between thefirst piston end 10 and thecylinder 3, the firstaccommodating space 7 is communicated with the firstliquid storage device 9 through a one-way valve 8, liquid medicine in the firstliquid storage device 9 can enter the firstaccommodating space 7 through the one-way valve 8, but the liquid medicine in the firstaccommodating space 7 cannot enter the firstliquid storage device 9 through the one-way valve 8.

Further, the injection assembly further comprises asecond piston 11 and a first connectingrod 12, asecond cylinder chamber 13 is arranged on thecylinder 3, thefirst piston 4 and thesecond piston 11 are both mounted on the first connectingrod 12, asecond piston end 14 is arranged on thesecond piston 11, and thesecond piston end 14 extends into thesecond cylinder chamber 13 and forms a secondaccommodating space 15 with thecylinder 3.

Furthermore, the injection assembly further comprises a second connectingrod 16 and a third connectingrod 17, amovement channel 18 is arranged on thebarrel 3, one end of the second connectingrod 16 is arranged on the first connectingrod 12, the other end of the second connectingrod 16 is connected with one end of the third connectingrod 17, the other end of the third connectingrod 17 is movably matched with the first locking assembly, and two ends of the first elastic body 2 are respectively connected with the supportingshell 1 and thebarrel 3.

The cylinder 3 comprises an initial position, a liquid storage position and an injection position in the movement process, the first connecting rod 12 can drive the first piston 4 and the second piston 11 to move synchronously under the driving of external force, so that the second accommodating space 15 can be enlarged or reduced, a first blocking platform 26 is arranged on the supporting shell 1, a second blocking platform 27 is arranged on the cylinder 3 along the circumferential direction, when the first piston 4 is driven by external force to drive the cylinder 3 to face the first direction, the cylinder 3 moves from the initial position and stops at the liquid storage position due to the matching of the two blocking platforms, at the moment, under the action of the external force facing the first direction, the first piston 4 continues to move towards the first direction relative to the cylinder 3, and at the moment, the volume of the first accommodating space 7 is increased, so that the liquid medicine with the preset volume in the first liquid storage device 9 is pumped into the first accommodating space 7 and then is locked by the first locking component; meanwhile, the first connecting rod 12 drives the second piston 11 to move towards the first direction, so that the volume of the second accommodating space 15 is increased, the second accommodating space 15 is in a vacuum environment, and therefore, under the action of external atmospheric pressure, the second piston 11 stores the trend of moving towards the second direction.

After the first locking assembly is unlocked, thecylinder 3 moves from the liquid storage position to the injection position in the second direction under the driving of the elastic force of the first elastic body 2, theinjection head 5 is inserted into the skin of an injector, and thesecond piston 11 moves in the second direction under the action of the external atmospheric pressure so as to drive thefirst piston 4 to move in the second direction and drive the liquid medicine in the firstaccommodating space 7 to flow out through theinjection head 5. The first direction in the present invention is opposite to the second direction, and the initial position is located between the reservoir position and the injection position.

Specifically, the first locking assembly includes a first rollingbody 20, a secondelastic body 21, afirst locking housing 43, and a first driving body, the first rollingbody 20 preferably employs steel balls, the secondelastic body 21 preferably employs a plastic spring, the first lockinghousing 43 is mounted on thesupport housing 1 through thesupport bracket 19, the third connectingrod 17 passes through the first lockinghousing 43 and forms a first wedge-shaped space with the first lockinghousing 43, the first wedge-shaped space is sequentially provided with a first rollingbody 20 and a secondelastic body 21 along a first direction, and the width of the first wedge-shaped space is gradually increased, as shown in figure 1, when the third connectingrod 17 moves toward the first direction, the steel ball cannot block the movement of the third connectingrod 17, and when the third connectingrod 17 moves toward the second direction, the frictional force between the steel ball and the third connectingrod 17 becomes large due to the first wedge-shaped space and the action of the spring, thereby locking the third connectingrod 17.

Specifically, the first driving body includes a lever body 22, a fixedshaft 23, and a switch member, the lever body 22 is rotatably mounted on the supportingframe 19 through the fixedshaft 23, the switch member is mounted at one end of the lever body 22, and when the switch member is operated, one end of the lever body 22 can be driven to rotate around the fixedshaft 23, so that the other end of the lever body 22 drives the first rollingelement 20 to move towards the first direction, thereby unlocking the first locking member. The switch preferably adopts a structure comprising anoperating handle 24 and a curved elastic sheet 25, the curved elastic sheet 25 is mounted on thesupport housing 1, one surface of the curved elastic sheet 25 is connected with one end of the lever body 22, the other surface of the curved elastic sheet 25 is connected with the operatinghandle 24, the curved elastic sheet 25 is of a structure with one surface bulging out, and the structure comprises two states, when the first locking assembly is locked, the bulging surface of the curved elastic sheet 25 bulges towards one side of theoperating handle 24, when the operatinghandle 24 is pressed, the bulging surface of the curved elastic sheet 25 bulges towards one side of the lever body 22, at the moment, the first locking assembly is unlocked, in a variation, the curved elastic sheet 25 can be omitted, the operatinghandle 24 is mounted on thesupport housing 1, the operatinghandle 24 adopts an elastic plastic member, when the operatinghandle 24 is pressed, the operatinghandle 24 cannot be reset after being deformed or cannot be reset locally, so that the first rollingbody 20 can be driven to move slightly through the lever body 22 and the lever body 22 The unlocking effect of the invention can be realized.

Specifically, one end of thesupport housing 1 facing the second direction is provided with aninjection end housing 28 and afirst protection sleeve 29, thefirst protection sleeve 29 is detachably mounted at one end of theinjection end housing 28 and jointly encloses a thirdaccommodating space 30, and theinjection end housing 28 and thefirst protection sleeve 29 jointly form a protection housing for theinjection head 5, so that theinjection head 5 is effectively prevented from being damaged when the injector is not used. When thecylinder 3 is at the initial position, the end of theinjection head 5 passes through the other end of theinjection end shell 28 and extends into the thirdaccommodating space 30, the free end of theinjection head 5 is inside the thirdaccommodating space 30 when thecylinder 3 is at the initial position and the liquid storage position, and when thecylinder 3 is at the injection position, the free end of theinjection head 5 moves to the outside of the thirdaccommodating space 30 to realize the injection to the injected person.

Specifically, a secondprotective sleeve 31 is detachably sleeved on one end of the supportingshell 1 facing the second direction, a fourth containingspace 32 is formed between thesupport housing 1 and the secondprotective sleeve 31, a sterilized cotton 33, asharp tool 34 and asecond reservoir 35 are arranged in the fourth containingspace 32, the sterilizedcotton 32 is connected with the firstprotective sleeve 29, under the driving of an external force, thesecond protection sleeve 31 can slide towards thesupport housing 1 to drive thesharp tool 34 to pierce thesecond liquid reservoir 35 so as to make the disinfecting liquid in thesecond liquid reservoir 35 flow into the disinfectingcotton 32, thesharp tool 34 can adopt a cone, a cutter and the like, after thesecond protection cover 31 is removed, thesupport housing 1 can drive theaseptic cotton 32 to sterilize the injection site of the person to be injected, and further, after the sterilization is completed, thefirst protection cover 29 is removed to perform the injection operation.

Specifically, the external force of the first connectingrod 12 moving towards the first direction may be driven by a human power in a human power driving mode, or may be driven by a machine in an electromechanical driving mode, and may be specifically designed according to an actual application scenario. As shown in fig. 12, for an application scenario in the electromechanical driving mode, the present embodiment further includes afirst driving body 36 and asecond driving body 37, wherein thefirst driving body 36 and thesecond driving body 37 are both mounted on the supportinghousing 1, thefirst driving body 36 and thesecond driving body 37 can adopt various driving forms, for example, both adopt a smart material such as a shape memory alloy or a phase change material such as a phase change material, which is configured to generate driving by temperature change, and the driving is realized by generating elongation or expansion, so as to drive theoperation handle 24. For another example, thefirst driving body 36 and thesecond driving body 37 are both magnetic driving bodies, the first connectingrod 12 is a magnet or a ferromagnetic body, thefirst driving body 36 is an electromagnetic coil, and when thefirst driving body 36 is energized, a magnetic field is generated and the first connectingrod 12 is driven by the magnetic force to move in the first direction.

Further, thefirst driving body 36 preferably adopts an electromagnetic coil and an iron core, the electromagnetic coil is arranged along the circumferential direction of the iron core, the first connectingrod 12 preferably adopts a ferromagnetic body, when the electromagnetic coil is powered on, a magnetic field is generated, and then the first connectingrod 12 is attracted by magnetic force to overcome the elastic force of the first elastic body 2 and move towards the first direction, so that the firstaccommodating space 7 finally sucks the liquid medicine, and the volume of the vacuum space of the corresponding secondaccommodating space 15 is increased. When the electromagnetic coil is powered off, the magnetic force is released, the retracting force of the first elastic body 2 and the force which drives thesecond piston 11 to move towards the second direction under the atmospheric pressure exist, and when the first locking assembly is unlocked, thesecond piston 11 moves towards the second direction, so that the injection operation is realized.

Specifically, thesecond driving body 37 can magnetically drive the operation handle 24 of the first locking assembly to move, in this embodiment, thesecond driving body 37 includes an electromagnet and a permanent magnet, and the electromagnet is energized to generate a magnetic field and then drive the permanent magnet to move, so that the operation of pressing the operation handle 24 can be realized, and the operation of locking the first locking assembly to unlocking the first locking assembly can be realized.

In the present invention, when the first locking assembly is unlocked, on the one hand, under the action of the atmospheric pressure, there is a movement of thesecond piston 11 relative to thecylinder 3 in the second direction, and on the other hand, there is a movement of thecylinder 3 relative to thesupport housing 1 in the second direction driven by the retractive elastic force of the first elastic body 2, since the movement speed of thecylinder 3 relative to thesupport housing 1 driven by the elasticity of the first elastic body 2 is greater than the movement speed of thesecond piston 11 relative to thecylinder 3, meanwhile, the medicine liquid, thecylinder 3, thefirst piston 4, thesecond piston 11, the first connectingrod 12 and the second connectingrod 16 form an inertia mass body integrally, friction exists between the piston and thecylinder 3, and the medicine liquid flows out of theinjection head 5 after theinjection head 5 is inserted into muscles of a human body, wherein, thesupport frame 19 plays a role in positioning theinjection head 5, so the injector of the invention has scientific and reasonable design.

The present invention further provides an injection platform, which can be used to mount one or more injectors, and comprises a control mechanism and a power mechanism in an electromechanical driving mode, wherein the power mechanism comprises afirst driving body 36 and asecond driving body 37 in this embodiment.

The control mechanism is in signal connection with the power mechanism, the control mechanism sends a control command, the power mechanism executes the control command, and the power mechanism can drive the injection assembly to act so as to realize the injection operation of the injector. In practical application, the control mechanism can realize the injection control by setting the control board card, and can also realize the injection operation of the intelligent terminal by installing the wireless communication control mechanism.

In one specific application, the injection platform comprises a robot hand, and the robot hand can pick up the injector at a preset position and reach the injection position under the control of the control mechanism to complete the injection operation on the injected person. In practical application, in order to improve efficiency, the injection device can be provided with a loudspeaker to output sound or multimedia equipment to guide an injected person to complete injection operation, and in order to perform injection operation more accurately, the injection device can also be provided with a corresponding sensor to identify whether the injected person reaches an injection position. The injection platform can achieve efficient and accurate injection, complete continuous injection in special environments, save labor and avoid infection among doctors and patients during injection of special disease people in the special environments.

The injection platform is not limited to a manipulator, but also can be a large-scale injection platform, can complete injection of one or more types of liquid medicines, greatly improves the injection efficiency, and meets special medical requirements in emergency.

Example 2:

this embodiment is a preferred embodiment ofembodiment 1. In this embodiment, as shown in fig. 6 to 10, the locking device further includes a second locking assembly, the second locking assembly includes a second rolling element 38, a third elastic body 39, a blocking member 40, a second locking housing 44 and a first driving body, the second locking housing 44 is mounted on the supporting frame 19, a second wedge-shaped space is formed between the third connecting rod 17 and the second locking housing 44, the third elastic body 39, the second rolling element 38, the blocking member 40 are sequentially arranged in the second wedge-shaped space along the first direction, the width of the second wedge-shaped space is gradually reduced, a fourth elastic body 41 is arranged between the supporting frame 19 and the second connecting rod 16, the fourth elastic body 41 is sleeved on the third connecting rod 17, a fourth connecting rod 42 is arranged on the second connecting rod 16, and when the second connecting rod 16 moves towards the second direction, the fourth connecting rod 42 can be driven to move so as to drive the blocking member 42 to deform so as to drive the second rolling element 38 towards the second direction In this case, the blocking member 40 is an elastic plastic body and cannot recover after deformation, and at this time, the second rolling element 38 allows the third connecting rod 17 to move in the first direction under the driving of the fourth elastic body 41.

In this embodiment, the second locking assembly can adopt a plurality of settings: for example: a fifthelastic body 45 is disposed between one end of thesecond lock housing 44 facing the first direction and thesupport bracket 19. For another example: the secondrolling elements 38 are elastic bodies. Also for example: thesecond lock housing 44 is an elastic body.

As shown in fig. 10, in the present invention, the arrangement of the second locking assembly and the matching structure of the fourth elastic body 41 can achieve the action of pulling the syringe 5 out of the muscle under the driving of the fourth elastic body 41, at the same time, the second locking assembly cannot completely lock the third connecting rod 17 when the barrel 3 moves from the initial position to the storage position, and when the force applied to the first connecting rod 12 in the first direction exceeds a certain set value, the third connecting rod 17 can still break away the constraint of the second locking assembly and move in the first direction, but at the set value, the elastic force of the fourth elastic body 41 cannot drive the third connecting rod 17 to move in the first direction, so that there is a certain gradient difference between the force pulling the first connecting rod 12 in the first direction and the values of the elastic force of the fifth elastic body 45, the elastic force of the second rolling body 38 or the elastic force of the second locking housing 44, since the elastic body (e.g., the second lock housing 44) is elastically deformed when the third connecting rod 17 moves in the first direction, the third connecting rod 17 can move in the first direction, and thus the third connecting rod 17 can move in both directions before and after injection according to the requirement of the actual injection operation.

In the present invention, the first elastic body 2, the secondelastic body 21, the thirdelastic body 39, the fourthelastic body 41, and the fifthelastic body 45 are preferably springs, and may be provided as magnetic springs as needed in some application scenarios, and the magnetic springs as in patent document CN211794929U may be used, and the effects of the present invention can also be achieved. In the present invention, the firstrolling elements 20 and the secondrolling elements 38 are preferably spherical balls, and cylindrical structures or the like may be used.

The working principle of the invention is as follows:

as shown in fig. 11, first, thesecond protection cover 31 is pushed to move towards the first direction, thesharp tool 34 pierces the secondliquid container 35, the disinfecting liquid in the secondliquid container 35 flows out and wets the disinfection cotton 33, at this time, thesecond protection cover 31 is detached from thesupport housing 1, thesupport housing 1 is driven by manpower or machine to approach the skin of the human body and the disinfection cotton 33 is wiped on the skin of the human body for wiping disinfection, thefirst protection cover 29 is detached after disinfection, thedisinfection cotton 32 is connected with thefirst protection cover 29, so the disinfection cotton 33 is also removed together after thefirst protection cover 29 is detached, and further the next injection operation is performed.

Secondly, in a specific operation process, firstly, the first connectingrod 12 is driven by manpower or electromechanics to move towards the first direction so as to drive thefirst piston 4 and thecylinder 3 to move towards the first direction, when the second blocking table 27 moves to be blocked by the first blocking table 26, thecylinder 3 stops at the liquid storage position, the first elastic body 2 is stretched and has elastic potential energy of retraction, at the moment, the first connectingrod 12 continues to drive thefirst piston 4 to move towards the first direction, thefirst piston 4 slides relative to thecylinder 3, the firstaccommodating space 7 is enlarged in volume so as to pump the liquid medicine into the firstaccommodating space 7, so that the liquid medicine is pumped, meanwhile, the second connectingrod 12 pulls thesecond piston 11 to move synchronously with thefirst piston 4 so as to enlarge the vacuum space of the secondaccommodating space 15, and thesecond piston 11 has a tendency of moving towards the second direction under the action of the external atmospheric pressure.

And driving the operating handle 24 to unlock the first locking assembly, driving thecylinder 3 under the action of friction force and negative pressure between the piston and the inner wall of the cylinder under the driving of the retraction elastic force of the first elastic body 2 to drive thefirst piston 4 and thesecond piston 11 to rapidly move towards the second direction, and stopping thecylinder 3 at the injection position when thecylinder 3 moves to be blocked by the supportingframe 19, so that the free end of theinjection head 5 is rapidly inserted into the muscle of the human body.

Next, as shown in fig. 10, under the action of the external atmospheric pressure, thesecond piston 11 moves towards the second direction, and then the first connectingrod 12 drives thefirst piston 4 and the second connectingrod 16 to continue to move towards the second direction, so that the liquid medicine in the firstaccommodating space 7 is extruded by thefirst piston 4 and flows out through theinjection head 5, and then intramuscular injection is realized, and finally, the operation of injecting the liquid medicine into the skin of the human body is completed. In the process, the second connectingrod 16 is buffered by the compression elastic force of the fourthelastic body 41 in the process of moving towards the second direction, so that the speed of thefirst piston 4 moving towards the second direction is more stable, and uniform injection is realized.

Finally, when thefirst piston 4 pushes out all the liquid medicine in the first containingspace 7, the elastic potential energy of the first elastic body 2 is released, in the process, the fourth connectingrod 42 interferes with the blockingmember 40 and drives the blockingmember 40 to move toward the second direction, since the blockingmember 40 is an elastic-plastic member and cannot recover after being deformed, the blockingmember 40 drives the second rollingelement 38 to slightly displace towards the second direction and not to return, at this time, the friction force between the third connectingrod 17 and the second rollingelement 38 becomes smaller or is out of contact, so that the elastic force of the fourthelastic body 41 can be extended to drive the second connectingrod 16 to move towards the first direction, under the action of negative pressure and friction force of the inner wall of the barrel body, thebarrel body 3 is driven by the second connectingrod 12 to move towards the first direction for a certain displacement, so that theinjection head 5 is pulled out of the muscle of the human body, and the complete injection process is completed.

The action of pulling out from the muscle of the human body can be completed by manpower according to different application environments.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.