CN219398523U - Injection pump and injection device - Google Patents

Abstract

The utility model provides an injection pump and an injection device, wherein the injection pump comprises a machine body, an injection mechanism and an accuracy control mechanism, wherein an installation area is arranged on the machine body, a placement mechanism is arranged in the installation area, and the placement mechanism is used for clamping an injector; the injection mechanism is in one-to-one correspondence with the placement mechanism, and comprises a pushing component and a driving component, wherein the pushing component is movably matched with the machine body, and the driving component is connected with the pushing component and is used for driving the pushing component to push a push rod of the injector in the installation area so as to realize liquid injection; the precision control mechanism comprises a diameter detection assembly and a movement detection assembly, wherein the diameter detection assembly is used for detecting the diameter of the injector, the movement detection assembly is used for detecting the movement amount of the pushing assembly, and the injector with various volumes can be installed for working.

Description

Injection pump and injection device

Technical Field

The utility model relates to the field of injection equipment, in particular to an injection pump and an injection device.

Background

Syringe pumps are a common type of injection device that performs an injection operation by mechanically driving a syringe, and in the prior art, most of the syringe pumps are equipped with a syringe that is matched to the syringe pump, and since the size of the syringe is fixed, it is necessary to perform an injection operation by previously inputting the feeding amount of the syringe plunger.

Since the syringe pump must be selected from a specific syringe, it is difficult to work with a syringe of other sizes or general purpose, and the adaptability is poor, and the above-mentioned problems are technical problems to be solved in the art.

Disclosure of Invention

The utility model mainly solves the technical problem of providing an injection pump which can adapt to various syringes.

According to a first aspect, the present application provides a syringe pump comprising:

the device comprises a machine body, wherein an installation area is arranged on the machine body, a placement mechanism is arranged in the installation area, and the placement mechanism is used for clamping the injector;

the injection mechanism is in one-to-one correspondence with the placement mechanism, the injection mechanism comprises a pushing component and a driving component, the pushing component is movably matched with the machine body, and the driving component is connected with the pushing component and is used for driving the pushing component to push a push rod of the injector in the installation area so as to realize liquid injection;

a precision control mechanism including a diameter detection assembly for detecting a diameter of the syringe and a movement detection assembly for detecting a movement amount of the pushing assembly;

the diameter detection assembly, the movement detection assembly and the driving assembly are connected with the corresponding control units, the diameter detection assembly and the movement detection assembly feed detection signals back to the control units, and the control units control the action of the driving assembly.

In an alternative embodiment, the placement mechanism includes a clamping assembly, the clamping assembly includes a clamping member and a connecting rod, the clamping member is slidably matched with the machine body through the connecting rod, a movement track of the clamping member includes a clamping position, and when the clamping member moves to the clamping position, the clamping member can be jointly clamped with the machine body to the injector.

In an alternative embodiment, the fastening assembly further includes a reset member, where the reset member is connected to the fastening member, and the reset member is used to drive the fastening member to move toward the machine body, and a hand-holding portion is disposed on the fastening member.

In an alternative embodiment, the pushing component comprises a movable rod and a clamp, the movable rod is in sliding fit with the machine body along the axial direction of the movable rod, when the syringe is installed in the installation area, the movable rod is parallel to the push rod of the syringe, the clamp is arranged on the movable rod and used for clamping the push rod, and the driving component is connected with the movable rod and can drive the movable rod to slide along the axial direction of the movable rod.

In an alternative embodiment, the clamp is provided with a clamping piece driving piece and at least two clamping pieces which can move relatively, the clamping piece driving piece is connected with the clamping pieces, and the clamping piece driving piece can drive the clamping pieces to be close to or far away from each other.

In an alternative embodiment, the fixture is further provided with a trigger piece, the trigger piece is located between the clamping pieces, the trigger piece is in driving electric connection with the clamping pieces, the trigger piece can be triggered by a push rod arranged between the clamping pieces, and the trigger piece can start the clamping piece driving piece when triggered.

In an alternative embodiment, the driving assembly comprises a motor and a screw rod, the screw rod is parallel to the movable rod, the motor is connected with the screw rod and used for driving the screw rod to rotate, a linkage piece is in threaded fit with the screw rod, and the linkage piece is fixedly connected with the movable rod.

In an alternative embodiment, the placement mechanism includes a placement slot for positioning the barrel of the syringe and a needle securing structure disposed at an end of the placement slot remote from the pushing assembly for positioning the needle of the syringe.

In an alternative embodiment, the body further comprises a display mechanism, the display mechanism is respectively connected with the diameter detection assembly and the movement detection assembly in a signal way, and the display mechanism is configured to display the diameter of the syringe and the movement amount of the pushing assembly.

According to a second aspect, the present application provides an injection device comprising the above-described syringe pump, and a syringe arranged on the syringe pump.

According to the injection pump of the embodiment, the placing mechanism is arranged on the machine body, the injector is clamped and fixed through the placing mechanism, so that the injectors with various capacities can be fixed, the pushing mechanisms corresponding to the placing mechanisms one by one are arranged, the pushing rods of the injectors are driven by the pushing mechanisms to conduct injection actions, the control of the injectors is achieved, meanwhile, the diameter of the injectors and the real-time displacement of the pushing rods of the injectors are detected in real time through the precision control mechanism, and the precision control mechanism is further arranged, so that the diameter of the injectors and the feeding quantity of the pushing rods of the injectors can be detected, therefore, the injector with various capacities can be installed without selecting the injectors with specific volumes, and the injection pump has a stronger application range.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram of the injection mechanism and the precision control mechanism according to one embodiment of the present application;

FIG. 3 is an enlarged schematic view of a pushing assembly according to one embodiment of the present application;

FIG. 4 is a schematic view of a diameter sensing assembly and a clamping assembly according to one embodiment of the present application;

FIG. 5 is an exploded view of the pushing assembly and the movement detection assembly in one embodiment of the present application;

FIG. 6 is an enlarged schematic explosion diagram of a motion detection assembly according to one embodiment of the present application.

Reference numerals: the device comprises a machine body 1, a clamping piece 111, a connecting rod 112, a reset piece 113, a clamping part 114, a placing groove 115, a needle fixing structure 116, a hand holding part 117, a display mechanism 12, a pushing component 21, a movable rod 211, a clamp 212, a clamping piece 2121, a triggering piece 2122, a driving component 22, a motor 221, a screw rod 222, a linkage piece 223, a bayonet 2231, a guide rod 224, a gear set 225, a diameter detection component 31, a first detector 311, a first probe 312, a movement detection component 32, a second detector 321 and a second probe 322.

Detailed Description

The utility model will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

The application discloses a syringe pump, as shown in fig. 1, which comprises a machine body 1, an injection mechanism and an accuracy control mechanism.

Wherein, be provided with the installation region that is used for placing the syringe on organism 1, in order to better fix a position the syringe on organism 1, be provided with placement mechanism in the aforesaid installation region, this placement mechanism can be buckle structure, bonding structure or other structures that can fix a position the syringe, exemplary such as shown in fig. 1, this placement mechanism can include at least two semicircular standing grooves 115 of seting up on organism 1, and set up the card solid subassembly in one side that standing grooves 115 kept away from organism 1, above-mentioned two standing grooves 115 mutually noninterfere, in the specific example of this application disclosed, these two standing grooves 115 are parallel to each other, it is understood that, also can be based on the injection demand and have certain contained angle between the standing grooves 115, and it also can be the square groove or other cross-section be polygonal cell body, this application does not do too much and does not prescribe a limit to, wherein, the one end that above-mentioned standing grooves 115 are used for placing the syringe in order to better in standing grooves 115 is provided with a fixed structure, this standing grooves 115 is used for placing the syringe's one end, for example, this fixed structure 116 can also be fixed with the syringe is fixed with the syringe, this fixed structure is fixed with the needle that can be fine and can be fixed with the needle in the fine structure, this needle can also be fixed with the needle that the needle can be fixed with the fine structure is fixed in the through-hole, the needle has the fine structure, and the needle can be well matched in this application structure.

Above-mentioned, the card solid subassembly is used for fixing the syringe card on organism 1, in the embodiment of this application disclosed as shown in fig. 1 and 2, this card solid subassembly includes fastener 111 and connecting rod 112, fastener 111 and connecting rod 112 fixed connection are provided with a guiding hole of perpendicular to on organism 1 syringe face of placing on the organism 1, this connecting rod 112 can with this guiding hole sliding fit, connecting rod 112 and organism 1 sliding fit, connecting rod 112 is used for driving fastener 111 towards or keep away from organism 1 motion, place the syringe between fastener 111 and the organism 1, can avoid dropping on the syringe organism 1 through setting up fastener 111. It should be understood that in some possible embodiments, the above-described card slots or card-securing assemblies may also each exist separately.

As shown in fig. 1, the number of the injection mechanisms corresponds to the number of the placement mechanisms one by one, for example, in the embodiment disclosed in the application, the placement mechanisms include two, two injection mechanisms corresponding to the placement mechanisms are disposed on the inner side of the machine body 1, the injection mechanisms include a pushing component 21 and a driving component 22, the pushing component 21 is used for pushing a push rod of the injector when the injector is placed on the machine body 1, and the driving component 22 is used for driving the pushing mechanism to act.

In a specific example, as shown in fig. 1, the pushing assembly 21 is composed of a movable rod 211 and a clamp 212, the clamp 212 is disposed at one end of the movable rod 211, when the syringe is placed in the installation area, the movable rod 211 is parallel to the syringe, the movable rod 211 is slidably engaged with the body 1 in the axial direction thereof, for example, as shown in fig. 2, a guide rod 224 parallel to the movable rod 211 may be disposed at the inner side of the body 1, a linkage 223 is fixed at one end of the movable rod 211 away from the clamp 212, the movable rod 211 may be slidably engaged with the guide rod through the linkage so that the movable rod 211 may slide in the axial direction thereof with respect to the body 1, the clamp 212 is used for clamping the push rod, the clamp 212 may clamp the push rod through a snap fit, a screw connection or the like, in the embodiment disclosed in the present application, as shown in fig. 3, a side of the clamp 212 facing the machine body 1 is connected with two clamping pieces 2121 capable of rotating relatively through a rotating shaft, a clamping piece driving piece is installed on the inner side of the clamp 212, for example, the clamping piece driving piece can be, but not limited to, a motor 221, the clamping piece driving piece is used for driving the two clamping pieces 2121 to rotate so as to control the two clamping pieces 2121 to approach each other, a triggering piece 2122 is installed between the two clamping pieces 2121, the triggering piece 2122 can be a switch device such as a push button switch, an infrared detector and the like, when the end part of the push rod is located between the two clamping pieces 2121, the push rod can press the push button switch, when the push rod is located between the two clamping pieces 2121, after the triggering piece 2122 is triggered, a signal can be sent to the control unit, so that the control unit starts the clamping piece driving piece, the clip driving member drives the two clips 2121 closer to each other to clamp the end of the push rod located between the clips 2121.

The driving assembly 22 may be, but is not limited to, a linear driving assembly 22 such as a cylinder, a screw 222 motor 221, an oil cylinder, etc., for example, as shown in fig. 2, in the embodiment disclosed in the present application, the driving assembly 22 includes a screw 222 and a motor 221, a gear set 225 is driven between the motor 221 and the screw 222, the gear set 225 may include one or more gears with different diameters, a specific gear number and a specific transmission ratio may be adaptively adjusted, the present application is not limited thereto, the movable rod 211 is in threaded connection with the screw 222, more specifically, the movable rod 211 rod may be in threaded connection with the screw 222 through a linkage 223, for example, the linkage 223 is simultaneously connected with the screw 222, the movable rod 211 and the guide rod 224, the screw rod 222, the movable rod 211 and the guide rod 224 are all arranged in parallel, the guide rod 224 is used for guiding the linkage piece 223 and the movable rod 211, the screw rod 222 is used for driving the linkage piece 223 to move along the axial direction of the linkage piece, when the motor 221 is started, the screw rod 222 is driven by the motor 221 to rotate, the linkage piece 223 in threaded fit with the screw rod 222 is limited by the guide rod 224 to rotate along with the screw rod 222 along with the rotation of the screw rod 222, only the axial direction of the screw rod 222 moves, because the movable rod 211 is connected with the linkage piece 223, the movable rod 211 is parallel to the push rod of the injector, the clamp 212 is fixedly connected with the movable rod 211, and at the moment, if the push rod of the injector is clamped on the clamp 212, the push rod also moves along the axial direction of the guide rod 224 under the driving of the clamp 212, so that the injection action is performed.

In the embodiment disclosed in the present application, a precision control mechanism is further included, which includes a diameter detection assembly 31 and a displacement detection assembly, the diameter detection assembly 31 being used to detect the diameter of the syringe, the displacement detection assembly being used to detect the amount of movement of the push rod.

The diameter detecting unit 31 is used to detect the diameter of the barrel of the syringe when the syringe is placed on the body 1, and the displacement detecting unit is used to detect the amount of movement of the plunger of the syringe.

For example, the diameter detecting unit 31 may be composed of a first detector 311 and a first probe 312, the first probe 312 may be connected to a first movable unit for being attached to a barrel of the syringe by moving when the syringe is placed on the body 1, the first movable unit may be close to or far from the body 1 to be attached to or separated from the syringe placed on the body 1, the first probe 312 may be moved along with the first movable unit, and the first detector 311 may be used for detecting a displacement distance of the first movable unit, thereby obtaining a diameter of the barrel of the syringe by calculation. The first movable component is used for driving the first probe 312 and the first detector 311 to move relatively when moving, the first detector 311 obtains the displacement distance of the first movable component by calculating by detecting the displacement of the first probe 312, for example, one of the first probe 312 and the first detector 311 can be connected with the first movable component, the other one of the first probe 312 and the first detector 311 can be kept fixed, and when the first movable component moves, the first probe 312 or the first detector 311 connected with the first movable component can be driven to move so as to enable the first probe 312 or the first detector 311 to move relatively, thereby completing detection.

For example, in an alternative example, the first movable component is located at a side of the injector away from the machine body 1, before the machine body 1 is mounted with the injector, the displacement distance of the first movable component can be marked as an initial position when the first movable component is attached to the machine body 1, then when the injector is placed on the machine body 1, the first movable component is driven to be away from the machine body 1, the injector is placed between the first movable component and the machine body 1, then the first movable component is pushed to be attached to the barrel of the injector, the position is a measurement position, the distance between the measurement position and the initial position is recorded, and the diameter of the barrel of the injector can be obtained.

It should be understood that the first movable component may also be movable not perpendicular to the machine body 1, for example, the first movable component may also be attached to the barrel of the syringe from above or below the syringe, even in some possible designs, the first movable component may not be movable in the radial direction of the syringe to attach the syringe, for example, when the moving direction of the first movable component forms an angle with the axial direction of the syringe, the angle and the moving distance of the first movable component may be combined, so as to calculate the moving distance of the first movable component in the radial direction of the syringe, thereby obtaining the diameter of the syringe, and in addition, when the first movable component is one, the first movable component may attach the barrel of the syringe from one side, and when the first movable component includes a plurality of first movable components, the diameter of the barrel of the syringe may also be calculated from the spacing between each syringe and the respective displacement distance in multiple directions. In addition, the first movable component may be disposed between the body 1 and the injector, and is not limited to a side of the body 1 away from the injector.

In addition, as shown in fig. 4, for example, in the embodiment disclosed in the present application, the clamping assembly may be used as a first movable assembly, that is, the first probe 312 or the first detector 311 may be fixedly connected to the connecting rod 112 in the clamping assembly, specifically, the first displacement detection assembly includes an elongated first detector 311, one surface of the first detector 311 is used as a first detection surface, the first detection surface extends toward the axial direction of the connecting rod 112, the first probe 312 is attached to the first detection surface, and considering that the volume and the weight of the first probe 312 are generally smaller than those of the first detector 311, therefore, the first probe 312 is fixedly connected to the connecting rod 112, a clamping portion 114 may be fixed at an end of the connecting rod 112 away from the clamping member 111, the first probe 312 is clamped in the clamping portion 114 and contacts with the first detection surface, the first probe 312 can move along the first detection surface along with the connecting rod 112, and the first detection surface can sense the position of the first probe 312. The first probe 312 moves on the first detection surface, and thus displacement information of the first probe 312 can be measured. Above-mentioned diameter detection subassembly 31 can adopt current potential bar, magnetic grating chi, the similar displacement detection device of grating chi, potential bar, magnetic grating chi, the grating chi is prior art, this application does not expand the detailed description to the theory of operation of this diameter detection subassembly 31, use diameter detection subassembly 31 to describe as the potential bar exemplary, when diameter detection subassembly 31 is the potential bar, first detector 311 is the resistance element this moment, first probe 312 then is the slider, slide opens and the one end of resistance element is connected with the power respectively, when first probe 312 is in the different positions of first detection face, the circular telegram length of first detector 311 is different, thereby the resistance value also can change, thereby just can judge the position of first probe 312 based on the resistance value.

In addition, in the above embodiment, in order to facilitate moving the above-mentioned clamping member 111, the clamping member 111 may be further fixed with a holding portion 117, for example, as shown in fig. 1, 2 and 4, the holding portion 117 may be a hook structure, which may be disposed on a side of the clamping member 111 away from the machine body 1, and may be hooked by a finger to operate the clamping member 111 and the connecting rod 112 for moving, and it should be understood that the holding portion 117 is not limited to a hook shape, but may be other shapes that are convenient for holding.

In addition, in some embodiments, as shown in fig. 2 and 4, the device further includes a restoring member 113, where the restoring member 113 is used to drive the clamping member 111 to be attached to the barrel of the syringe when the syringe is placed on the body 1, for example, the restoring member 113 may be an elastic member, where the elastic member is disposed between the clamping portion 14 and the body 1, and one end of the elastic member is fixed to the clamping portion 14, and the other end of the elastic member is fixed to the body 1, and when the clamping member 111 is far away from the body 1, the elastic member deforms, and the elastic member is used to restore a natural state, so as to drive the clamping member 111 to move toward the body 1, so that when the syringe is placed on the body 1, the clamping member 111 can be driven to be attached to the barrel of the syringe.

In one embodiment disclosed herein, the displacement detection assembly includes a second detector 321 and a second probe 322, where the pushing assembly 21 is used to drive the second probe 322 and the second detector 321 to move relatively when moving, for example, the pushing assembly 21 may also be connected to one of the second probe 322 and the second detector 321, and the other may be fixed to the machine body 1, where the second detector 321 is used to detect the displacement distance of the second probe 322, so as to obtain the displacement distance of the pushing assembly 21, and similar to the diameter detection assembly 31, the displacement detection assembly may also be a detector such as a potentiometer, a magnetic grating ruler, a grating ruler, or the like.

In a specific example, as shown in fig. 5 and 6, the second detector 321 includes a second detection surface extending along the moving direction of the pushing component 21, the second detector 321 is disposed above the pushing component 21, the bottom surface of the second detector 321 is a second detection surface, the second detection surface extends along the axial direction of the injector, in an example where the linkage 223 is disposed, a bayonet 2231 is disposed at the top of the linkage 223, the bottom of the second probe 322 is engaged in the bayonet 2231, the upper end of the second probe 322 is engaged with the second detection surface, and when the movable rod 211 moves along with the pushing rod, the linkage 223 can be driven to move, and then the second probe 322 located on the linkage 223 is driven to move along the second detection surface, so as to measure the moving amount of the pushing rod.

It should be understood that the present application further includes one or more control units and a display mechanism 12, where the control unit may be one or several of PCL, a single-chip microcomputer, and an upper computer, and the present application is not limited specifically. The display mechanism 12 is at least in signal connection with the diameter detection assembly 31 and the movement detection assembly 32, where the display mechanism 12 may be directly or indirectly in signal connection with the diameter detection assembly 31 and the movement detection assembly 32 through a control unit, and configured to display the detected syringe diameter and the plunger of the syringe, and after obtaining the diameter information of the syringe and the displacement information of the plunger, the display mechanism may display the information in the form of numbers or images, and the specific display mode is not limited in this application.

This application carries out the block through placing the mechanism to the stack shell of syringe, owing to adopt the mode of block to fix, can carry out the centre gripping to the syringe of multiple diameter, simultaneously, this application is through diameter detection subassembly 31 and removal detection subassembly 32, can real-time detection and acquire the stack shell diameter of syringe and the amount of movement of the push rod of syringe to based on the volume formula, just can utilize the real-time injection volume of calculating the syringe of control unit, in order to carry out accurate control to the push rod of syringe.

Compared with the prior art, the method for controlling the injection by inputting the parameters of the injector in advance can adopt a general injector for injection, the application range is changed, the control is more accurate, and the real-time control can be realized, on one hand, under the condition of frequently changing the injector, the injection parameters are not required to be adjusted for many times, and on the other hand, even under the condition that the scale marked by the injector has errors, the injection quantity can be accurately controlled.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. A syringe pump, comprising:

the device comprises a machine body, wherein an installation area is arranged on the machine body, a placement mechanism is arranged in the installation area, and the placement mechanism is used for clamping the injector;

the injection mechanism is in one-to-one correspondence with the placement mechanism, the injection mechanism comprises a pushing component and a driving component, the pushing component is movably matched with the machine body, and the driving component is connected with the pushing component and is used for driving the pushing component to push a push rod of the injector in the installation area so as to realize liquid injection;

a precision control mechanism including a diameter detection assembly for detecting a diameter of the syringe and a movement detection assembly for detecting a movement amount of the pushing assembly;

the diameter detection assembly, the movement detection assembly and the driving assembly are connected with the corresponding control units, the diameter detection assembly and the movement detection assembly feed detection signals back to the control units, and the control units control the action of the driving assembly.

2. The syringe pump of claim 1, wherein the placement mechanism comprises a clamping assembly comprising a clamping member and a connecting rod, the clamping member is slidably engaged with the body via the connecting rod, the movement path of the clamping member comprises a clamping position, and when the clamping member moves to the clamping position, the clamping member can jointly clamp the syringe with the body.

3. The syringe pump of claim 2, wherein the clamping assembly further comprises a reset member, the reset member being coupled to the clamp member, the reset member being configured to urge the clamp member toward the body, the clamp member having a hand-held portion disposed thereon.

4. The syringe pump of claim 1, wherein the pushing assembly comprises a movable rod slidably engaged with the body in the axial direction thereof, the movable rod being parallel to a push rod of the syringe when the syringe is mounted in the mounting area, and a clamp provided on the movable rod for clamping the push rod, and the driving assembly is connected to the movable rod and drives the movable rod to slide in the axial direction thereof.

5. The syringe pump of claim 4 wherein said clamp is provided with a jaw actuation member and at least two relatively movable jaws, said jaw actuation member being coupled to said jaws, said jaw actuation member being operable to urge said jaws toward and away from each other.

6. The syringe pump of claim 5, wherein the clamp further comprises a trigger member, the trigger member being positioned between the jaws, the trigger member being in driving electrical communication with the jaws, the trigger member being triggerable by a push rod positioned between the jaws, the trigger member being triggerable to activate the jaw driver when triggered.

7. The syringe pump of claim 4, wherein the drive assembly comprises a motor and a screw, the screw is parallel to the movable rod, the motor is connected with the screw and is used for driving the screw to rotate, a linkage is in threaded fit with the screw, and the linkage is fixedly connected with the movable rod.

8. The syringe pump of any one of claims 1 to 7, wherein the placement mechanism comprises a placement slot for positioning a barrel of the syringe and a needle securing structure disposed at an end of the placement slot remote from the push assembly for positioning a needle of the syringe.

9. The syringe pump of any one of claims 1 to 7, further comprising a display mechanism on the body, the display mechanism in signal communication with the diameter detection assembly and the movement detection assembly, respectively, the display mechanism configured to display the diameter of the syringe and the amount of movement of the pushing assembly.

10. An injection device comprising the injection pump of any one of claims 1 to 9, and a syringe disposed on the injection pump.