CN218923443U

CN218923443U - Remote control injection device and injection system for injection pump

Info

Publication number: CN218923443U
Application number: CN202222057076.0U
Authority: CN
Inventors: 代习伟; 靳阳阳; 张震
Original assignee: Suzhou Hengrui Hongyuan Medical Technology Co ltd
Current assignee: Suzhou Hengrui Hongyuan Medical Technology Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-04-28
Anticipated expiration: 2032-08-05

Abstract

The utility model discloses a remote control injection device and an injection system for an injection pump, and belongs to the technical field of medical equipment. The device comprises a needle cylinder, a push rod, a touch head, a pressure detection mechanism and a displacement detection mechanism, wherein the needle cylinder is used for being connected with an injection pump, the injection pump can feed back a resistance value, and a flange is arranged on the periphery of the needle cylinder; the first end of the push rod extends into the needle cylinder and can move along the inner wall of the needle cylinder; the touch head is arranged at the second end of the push rod, and the push rod can be pushed to move by pressing the touch head; the pressure detection mechanism is fixed between the second end of the push rod and the touch head, and can detect the pressure of the touch head when the touch head is pressed, and the pressure detection mechanism is in signal connection with the injection pump; the displacement detection mechanism can detect the displacement of the push rod movement, and is connected with the injection pump through signals. The remote control injection device and the injection system for the injection pump can reduce the operation difficulty and improve the diagnosis and treatment accuracy and the working efficiency.

Description

Remote control injection device and injection system for injection pump

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a remote control injection device and an injection system for an injection pump.

Background

The head and face vascular malformations or the vascular-rich neoplastic diseases represented by cerebral vascular malformations are clinically common blood-rich pathological changes, and interventional embolism treatment is the most important treatment means. This treatment modality requires medical personnel to deliver embolic material to the lesion site through various catheters under X-ray guidance to complete the occlusion of the lesion vessel. Among materials used for interventional embolization, non-adhesive liquid embolic materials have a very good therapeutic effect, and have become the most important treatment means for the blood-rich lesions of the head and face. In order to ensure that embolic material is only dispersed to the target region, and to prevent the occurrence of neurological complications caused by ectopic embolization, the injection of liquid embolic material must be performed under X-ray monitoring throughout the course. At present, due to the limitation of equipment, medical staff such as operators, assistants and the like must perform injection in the whole course under the exposure of X rays in a catheter room, namely, X-ray fluoroscopy is performed at the same time of injection, and whether to continue injection and the speed and mode of injection are controlled by observing the trend of embolic materials displayed on a screen and matching eyes and hands.

The following problems may exist in this process: firstly, although medical staff wear thick lead clothes during operation, the health of the staff is seriously affected by X-ray radiation with overdose. Secondly, the injection of the embolic material requires the operator to use a slow and stable injection rate, the rate is too fast to cause vasospasm or vascular necrosis, the operator can only push the embolic material by thumb pressure, the injection rate cannot be accurately controlled in the mode, the problem of too fast injection rate easily occurs, and the treatment effect is affected; thirdly, in the process of injecting the embolic material, if the injection is found to be stopped immediately due to the increase of the resistance, the microcatheter cannot be dredged by increasing the injection pressure, the microcatheter is broken or a non-target area is embolized due to the blind increase of the injection pressure, and an operator can only control the injection pressure by means of handfeel and experience, and when the pressure is too large, the condition of untimely reaction possibly exists, and the injection safety cannot be ensured.

In the prior art, although the remote control injection device related to the patent literature (a drug and embolic particle mixed injection device (CN 112494093A)) can remotely control the injection rate and the injection pressure and avoid medical staff working under X rays, the remote control injection device adopts a traditional rocker mode, and the two rockers of the speed control rocker and the pressure control rocker need to be controlled respectively, if the requirement of real-time feedback control is met, the operation difficulty of medical staff is greatly increased, and the diagnosis accuracy and the working efficiency are correspondingly reduced.

Accordingly, there is a need for a remote control injection device and injection system for an injection pump that addresses the above-described problems.

Disclosure of Invention

The utility model aims to provide a remote control injection device and an injection system for an injection pump, which reduce the operation difficulty and improve the diagnosis and treatment accuracy and the working efficiency.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, there is provided a remote control injection device for an injection pump, comprising:

the syringe is used for being connected with a syringe pump, the syringe pump can feed back a resistance value, and a flange is arranged on the periphery of the syringe;

the first end of the push rod extends into the needle cylinder and can move along the inner wall of the needle cylinder;

the touch head is arranged at the second end of the push rod, and the push rod can be pushed to move by pressing the touch head;

the pressure detection mechanism is fixed between the second end of the push rod and the touch head, and can detect the pressure for pressing the touch head when the touch head is pressed, and the pressure detection mechanism is in signal connection with the injection pump;

the displacement detection mechanism can detect the displacement of the movement of the push rod and is in signal connection with the injection pump;

and the protective cover assembly is used for sealing the needle cylinder.

In some possible embodiments, the flange is provided at an end of the syringe on a side facing the touch head.

In some possible embodiments, the displacement detection mechanism comprises a grating scale mounted on the push rod and a grating reading head mounted on the syringe, the grating reading head being capable of reading the position of the grating scale, the grating reading head being in signal connection with the syringe pump.

In some possible embodiments, the pressure detection mechanism includes a pressure sensor and a transition ring, the pressure sensor is fixed at the second end of the push rod, the touch head and the pressure sensor are connected through the transition ring so that a sensing part of the pressure sensor is spaced from the touch head, and the pressure sensor is in signal connection with the syringe pump.

In some possible embodiments, the device further comprises a gland, the second end of the push rod is provided with a mounting groove with an opening facing away from the first end, the pressure sensor is accommodated in the mounting groove, the gland is fixedly connected to the push rod, and the pressure sensor, the transition ring and the touch head are clamped between the bottom of the mounting groove and the gland.

In some possible embodiments, the device further comprises a motor and a screw, wherein the motor is fixed at one end of the needle cylinder, which is away from the touch head, the screw penetrates through the needle cylinder, one end of the screw penetrates through the motor and is connected with the injection pump, the other end of the screw is elastically connected with the push rod, and the motor is respectively connected with the pressure detection mechanism and the displacement detection mechanism in a signal manner.

In some possible embodiments, the lead screw and the push rod are connected by an elastic member.

In some possible embodiments, the method further comprises:

the first protection cover is connected with a fixed block at one end of the screw rod extending out of the motor, and is connected with the motor and the fixed block and can stretch out and draw back; and/or

The second protection casing, the second protection casing connect in the cylinder with the second end of push rod, the second protection casing can stretch out and draw back.

In some possible embodiments, at least one first limit plane is provided on the inner wall of the syringe, at least one second limit plane is provided on the outer periphery of the push rod, and the second limit plane can move along the first limit plane.

In another aspect, an injection system is provided comprising a remote control injection device for an injection pump as described above.

The utility model has the beneficial effects that:

according to the remote control injection device and the injection system for the injection pump, provided by the utility model, under the condition that remote control is realized and medical staff is prevented from being exposed in an X-ray environment to perform operation, by arranging the flange, the push rod and the touch head structure, the operability of the injection device is greatly improved and the medical working efficiency is improved as a common injector is operated by hands. The pressure detection mechanism and the displacement detection mechanism can respectively realize the real-time feedback operation of the capacity and the displacement, can freely adjust the injection rate range according to the characteristics of different embolic materials or focus types, and can realize the high-precision injection rate control, thereby realizing safe and effective injection while meeting different treatment scenes. The pressure detection mechanism is connected with the injection pump through signals, the pressure range of the microcatheter and/or consumable connected with the front end of the injection pump can be freely adjusted, real-time monitoring is carried out, when the pressure of the microcatheter and/or consumable is abnormal, the device can rapidly respond, and the pressure is prevented from exceeding the limit, so that the operation safety is effectively guaranteed, and the diagnosis and treatment accuracy is improved.

Drawings

FIG. 1 is a schematic view of a remote control injection device for an injection pump according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a remote controlled injection device for an injection pump provided in accordance with an embodiment of the present utility model;

FIG. 3 is an enlarged view at A of FIG. 2;

FIG. 4 is a schematic view of the structure of a syringe according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a push rod according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a push rod from another perspective according to an embodiment of the present utility model;

FIG. 7 is an assembled schematic view of a pressure sensor provided in accordance with an embodiment of the present utility model.

In the figure:

1. a needle cylinder; 11. a flange; 12. square through holes; 13. a grating cover plate; 2. a push rod; 21. a mounting groove; 22. the second limit plane; 23. a groove; 24. positioning the boss; 25. an end cap; 3. a touch head; 4. a pressure sensor; 41. an induction unit; 5. a displacement detection mechanism; 51. a grating reading head; 52. a grating ruler; 6. a transition ring; 7. a gland; 8. a first shield; 9. a second shield; 10. an elastic member;

101. a motor; 102. a screw rod; 103. a connector; 104. and a fixed block.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The present embodiment provides a remote control injection device for an injection pump, as shown in fig. 1 and 2, comprising a syringe 1, a push rod 2, a touch head 3, a shield assembly, a pressure detection mechanism and a displacement detection mechanism 5; the needle cylinder 1 is used for connecting a syringe pump, the syringe pump can feed back a resistance value, and the periphery of the needle cylinder 1 is provided with a flange 11; the first end of the push rod 2 extends into the needle cylinder 1 and can move along the inner wall of the needle cylinder 1; the touch head 3 is arranged at the second end of the push rod 2, and the push rod 2 can be pushed to move by pressing the touch head 3; the pressure detection mechanism is fixed between the second end of the push rod 2 and the touch head 3, and can detect the pressing pressure when the touch head 3 is pressed, and the pressure detection mechanism is in signal connection with the injection pump; the displacement detection mechanism 5 can detect the displacement of the movement of the push rod 2, and the displacement detection mechanism 5 is in signal connection with the injection pump; the protective cover component is used for plugging the needle cylinder 1, and plays a role in sealing and protecting the structure in the needle cylinder 1 so as to prevent scraps and the like from entering the needle cylinder 1 to influence the use effect.

In operation, the medical staff just like operating the injector, press the touch head 3 and push the push rod 2 along the inner wall of the syringe 1 by the thumb through the flange 11 of the syringe 1 by the index finger and the middle finger, so that the push rod 2 moves in the syringe 1; in the process of moving the push rod 2, the displacement detection mechanism 5 can detect the displacement information of the movement of the push rod 2 and feed back the displacement information to the injection pump in real time, so that the injection pump pushes the injector forwards to perform equal displacement medicine injection work, the injection quantity is controlled, and the injection rate is controlled by controlling the injection time of the injection pump. When the injection pump has resistance to the injection in the patient, the pressure collector and other structures are arranged in the injection pump, so that the resistance value can be detected and fed back, and at the moment, medical staff can control the injection pressure of the injection pump by adjusting the pressure of the thumb pressing the touch head 3, so that the injection pressure is controlled.

Through the remote control injection device for the syringe pump, the syringe pump is installed on the needle cylinder 1, installs in the one end of needle cylinder 1 in this embodiment, can let medical staff follow long-range operation, avoids medical staff to wear thick and heavy plumbous clothing for a long time, reduces the time that medical staff exposes in X line environment when performing the operation treatment simultaneously, has improved medical staff's security greatly, has solved clinical medical staff safety problem.

The device integration, through setting up flange 11, push rod 2 and touch head 3 structure, not only have small and exquisite compactness of structure, the staff can be like operating ordinary syringe, has improved maneuverability greatly to medical personnel, only needs the one hand can operate, has indirectly reduced the quantity of personnel during the operation, has improved medical work efficiency, has satisfied the operation of efficient syringe pump operation.

The pressure detection mechanism and the displacement detection mechanism 5 can respectively realize real-time feedback operation of the capacity and the displacement, can freely adjust the injection rate range according to the characteristics of different embolic materials or focus types, and can realize high-precision injection rate control, thereby realizing safe and effective injection while meeting different treatment scenes. The pressure detection mechanism is connected with the injection pump through signals, the pressure range of the microcatheter and/or consumable connected with the front end of the injection pump can be freely adjusted, real-time monitoring is carried out, when the pressure of the microcatheter and/or consumable is abnormal, the device can rapidly respond, and the pressure is prevented from exceeding the limit, so that the operation safety is effectively guaranteed, and the diagnosis and treatment accuracy is improved.

Specifically, the syringe 1 is slender on the whole, has the appearance similar to that of a common syringe, has the outer diameter basically the same as that of a 20ml syringe, better accords with the ergonomic characteristic and meets the operation convenience of medical staff.

In one embodiment, as shown in fig. 1 and 2, the flange 11 is arranged at the end of the syringe 1 facing the touch head 3, so that the distance between the touch head 3 and the flange 11 is shortened, and the operation is convenient; the flange 11 may be a ring plate provided around the syringe 1, or lugs provided on both sides of the syringe 1, etc., without limitation.

Further, the push rod 2 and the needle cylinder 1 are made of engineering plastic materials, the weight is light, the strength is relatively high, the friction coefficient of the engineering plastic is small, the friction force is small when the push rod 2 is pushed, and the convenience of manual operation is facilitated due to the characteristics of light weight and small resistance.

The remote control injection device for the injection pump not only can be used for the treatment scene of arterial and venous malformation embolism operation, but also can be applied to the injection scene of other embolic materials, and has wide application scene and good applicability.

Specifically, a control system can be arranged, the pressure detection mechanism, the displacement detection mechanism 5, the injection pump and a pressure collector on the injection pump are all connected with the control system through signals, the pressure detection mechanism, the displacement detection mechanism 5 and the pressure collector can send signals to the control system, and the control system controls the injection pump to perform corresponding actions.

Specifically, the push rod 2 is first pressed to move a predetermined distance, the injection amount and the injection rate are controlled, and then the injection pressure is controlled, without limitation.

In one embodiment, as shown in fig. 1-3, the remote control injection device for an injection pump further comprises a motor 101 and a screw 102, wherein the motor 101 is fixed at one end of the needle cylinder 1, which is away from the touch head 3, the screw 102 is arranged in the needle cylinder 1 in a penetrating way, one end of the screw 102 penetrates through the motor 101 and is connected with the injection pump, the other end of the screw 102 is connected with the push rod 2, and the motor 101 is respectively in signal connection with the pressure detection mechanism and the displacement detection mechanism 5. Specifically, the motor 101 drives an injection consumable structure such as a microcatheter connected to the outside through the screw 102, and the screw 102 is movable. Medical staff can reach required thrust value through adjusting thumb pressing force, and in the whole process, the motor 101 can adjust the torque in real time according to thumb pressing force, and the torque is converted into motor 101 thrust through the lead screw 102 and acts on the injection structure to perform injection. Considering that the motor 101 is difficult to realize in an instant error-free manner to reach the required value of the pressure detection mechanism, the push rod 2 and the screw rod 102 are elastically connected, and the balance with the thumb pressing force can be realized through the combined force of the thrust force of the motor 101 acting on the screw rod 102 and the elastic force from the push rod 2, so that the accuracy of the injection force is improved.

In one embodiment, the screw 102 and the push rod 2 are connected by an elastic member 10, thereby achieving an elastic connection; further, the elastic member 10 is a compression spring with an ultrahigh elastic coefficient; as shown in fig. 3 and 6, the screw 102 is connected with a connector 103, the end of the push rod 2 is provided with a positioning boss 24, a compression spring is connected with the positioning boss 24 and the connector 103, and the compression spring stretches along the positioning boss 24, so that the connection precision is improved.

Specifically, as shown in fig. 1 and 2, the external injection structure is connected to one end of the screw 102 protruding from the motor 101 through a fixing block 104.

In one embodiment, as shown in fig. 1 and 2, the remote control injection device for an injection pump further comprises a first protection cover 8, wherein the first protection cover 8 is connected to the motor 101 and the fixed block 104, and the first protection cover 8 can stretch and retract, so that the screw 102 and the inside of the syringe 1 can be sealed and protected.

In one embodiment, as shown in fig. 1 and 2, the remote control injection device for an injection pump further includes a second protection cover 9, two ends of the second protection cover 9 are respectively connected to the second ends of the syringe 1 and the push rod 2, and the second protection cover 9 can stretch and retract, so that the push rod 2 and the inside of the syringe 1 can be sealed and protected.

In one embodiment, the displacement detection mechanism 5 comprises a grating scale 52 mounted on the push rod 2 and a grating reading head 51 mounted on the needle cylinder 1, the grating reading head 51 reads the position of the grating scale 52, and the grating reading head 51 is in signal connection with the injection pump; in other embodiments, the displacement of the push rod 2 may be detected by other means in the related art, and is not limited thereto. Further, a containing groove is arranged on the side wall of the needle cylinder 1, and the grating reading head 51 is arranged in the containing groove to realize structure fixation; further, the accommodating groove is blocked by the grating cover plate 13 to form protection.

In one embodiment, at least one first limiting plane is arranged on the inner wall of the needle cylinder 1, at least one second limiting plane 22 is arranged on the periphery of the push rod 2, the second limiting plane 22 can move along the first limiting plane, and the first limiting plane and the second limiting plane 22 can realize circumferential limiting, improve precision and realize moving guiding. Further, as shown in fig. 4-6, a square through hole 12 is formed in the syringe 1, a connector 103 is arranged at the end part of the screw 102, and the cross sections of the connector 103 and the push rod 2 are respectively quadrangular, so that the guiding and positioning of the connector 103 and the push rod 2 in the square through hole 12 are realized.

Further, as shown in fig. 2, 5 and 6, the groove 23 is formed on the outer circumferential surface of the push rod 2, and the grating ruler 52 can be embedded in the groove 23 to prevent structural interference, and meanwhile, by arranging the groove 23, the processing area of the push rod 2 is reduced, and the cost is reduced. Specifically, the groove 23 is a long groove, and extends along the length direction of the push rod 2, so as to implement embedding of the grating ruler 52.

In one embodiment, as shown in fig. 1, 2 and 7, the pressure detecting mechanism includes a pressure sensor 4 and a transition ring 6, the pressure sensor 4 is fixed at the second end of the push rod 2, the touch head 3 and the pressure sensor 4 are connected through the transition ring 6 so that a sensing portion 41 of the pressure sensor 4 is spaced from the touch head 3, the pressure sensor 4 is connected with a signal of the syringe pump, when the touch head 3 is pressed, the touch head 3 is in contact with the sensing portion 41, the pressure sensor 4 can receive and transmit a pressure signal, when the touch head 3 is not pressed, the pressure sensor 4 cannot receive and transmit the pressure signal, so that misoperation is prevented, and reliability is improved.

In one embodiment, as shown in fig. 7, the remote control injection device for an injection pump further comprises a gland 7, a mounting groove 21 with an opening facing away from the first end is arranged at the second end of the push rod 2, the pressure sensor 4 is accommodated in the mounting groove 21, the gland 7 is fixedly connected with the push rod 2, and the pressure sensor 4, the transition ring 6 and the touch head 3 are clamped between the bottom of the mounting groove 21 and the gland 7, so that stable connection of the structure is realized; further, the inner wall of the mounting groove 21, the pressure sensor 4, the transition ring 6 and the touch head 3 can be bonded; further, the gland 7 is connected with the end part of the side wall of the mounting groove 21 through a fastener, and the disassembly and the assembly are convenient.

Further, the push rod 2 is provided with an end cap 25, the mounting groove 21 is arranged on the end cap 25, and the cross-sectional area of the end cap 25 is larger than the opening size of the needle cylinder 1, so that the push rod 2 is prevented from fully extending into the needle cylinder 1, and the follow-up operation is not facilitated; in particular, the second shield 9 is connected to an end cap 25.

Further, the screw 102 connector, the compression spring, the push rod 2 and the grating ruler 52 are all arranged in the needle cylinder 1 and the second protective cover 9, and the pressure sensor 4, the transition ring 6 and other parts are all arranged in the mounting groove 21 of the push rod 2, so that the device is compact and attractive in appearance, compact in internal structure, waterproof and dustproof in effect, and the service life of the device is prolonged. The parts are few, the main machined parts are only the needle cylinder 1 and the push rod 2, and the whole cost price is low by adopting a processing technology of processing after die sinking.

Further, the assembling step of the device comprises: first, the grating reading head 51 is installed in the accommodating groove of the needle cylinder 1, the grating ruler 52 is embedded in the groove 23 of the push rod 2, the pressure sensor 4 is embedded in the mounting groove 21 of the push rod 2, the transition ring 6 and the touch head 3 are installed in the mounting groove 21 one by one, and then the gland 7 is connected to the push rod 2. And secondly, assembling relevant parts of the motor 101, wherein the motor 101 and the screw 102 are assembled as outsourcing parts, only the fixed block 104 is connected to one end of the screw 102, the connecting joint is connected to the other end of the screw 102, and then the first protective cover 8 is respectively connected with the fixed block 104 and the motor 101. Third, the assembled push rod 2 component is installed in the needle cylinder 1, the second protective cover 9 is respectively connected with the push rod 2 and the needle cylinder 1, and finally the whole is connected with the motor 101 component. Because the parts are fewer, each part is independent and not interfered, and the disassembly and assembly are convenient.

The embodiment also provides an injection system, which comprises the remote control injection device for the injection pump, and can realize remote control of the injection pump so as to control an injection structure connected with the injection pump, thereby reducing the operation difficulty, improving the diagnosis accuracy and the working efficiency, and simultaneously having the advantage of reducing the cost.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A remote control injection device for an injection pump, comprising:

and the protective cover assembly is used for sealing the needle cylinder.

2. The remotely controlled injection device for an injection pump according to claim 1, wherein the flange is provided at an end of the cylinder on a side facing the touch head.

3. The remote control injection device for an injection pump according to claim 1, wherein the displacement detection mechanism comprises a grating scale mounted on the push rod and a grating reading head mounted on the syringe, the grating reading head being capable of reading the position of the grating scale, the grating reading head being in signal connection with the injection pump.

4. The remote control injection device for an injection pump according to claim 1, wherein the pressure detection mechanism comprises a pressure sensor and a transition ring, the pressure sensor is fixed to the second end of the push rod, the touch head and the pressure sensor are connected through the transition ring so that a sensing part of the pressure sensor is spaced from the touch head, and the pressure sensor is in signal connection with the injection pump.

5. The remote control injection device for an injection pump of claim 4, further comprising a gland, wherein the second end of the pushrod is provided with a mounting groove with an opening facing away from the first end, the pressure sensor is accommodated in the mounting groove, the gland is fixedly connected to the pushrod, and the pressure sensor, the transition ring and the touch head are clamped between the bottom of the mounting groove and the gland.

6. The remote control injection device for an injection pump according to claim 1, further comprising a motor and a screw, wherein the motor is fixed at one end of the needle cylinder, which is away from the touch head, the screw is arranged in the needle cylinder in a penetrating manner, one end of the screw penetrates through the motor and is connected with the injection pump, the other end of the screw is elastically connected with the push rod, and the motor is respectively connected with the pressure detection mechanism and the displacement detection mechanism in a signal manner.

7. The remote control injection device for an injection pump according to claim 6, wherein the lead screw and the push rod are connected by an elastic member.

8. The remote controlled injection device for an injection pump of claim 6 wherein the shield assembly comprises:

9. The remote control injection device for an injection pump according to any one of claims 1 to 7, wherein the inner wall of the cylinder is provided with at least one first limit plane, and the outer circumference of the push rod is provided with at least one second limit plane, the second limit plane being movable along the first limit plane.

10. An injection system comprising a remote controlled injection device for an injection pump according to any one of claims 1-9.