CN217219375U

CN217219375U - Integrative balanced application type liquid medicine infusion system

Info

Publication number: CN217219375U
Application number: CN202220200699.6U
Authority: CN
Inventors: 周庆叙
Original assignee: Shenzhen Arei Medical Electronics Co ltd
Current assignee: Shenzhen Arei Medical Electronics Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-08-19
Anticipated expiration: 2032-01-25

Abstract

The embodiment of the application provides an integrative balanced application formula liquid medicine infusion system, includes: the injection device, the drug delivery device, the bottom plate, the viscous piece, the main body shell and the control device; the control device is arranged in the main body shell, and the injection device, the administration device and the main body shell are arranged on the bottom plate; the adhesive piece is fixedly arranged on one side of the bottom plate, which is far away from the main body shell, and the adhesive piece is used for adhering the bottom plate to the skin; the drug delivery device is used for storing liquid medicine, and the output end of the drug delivery device is connected with the input end of the injection device; the control device is used for controlling the drug delivery device to output the liquid medicine to the injection device; the main body shell is provided with a first through hole, and the output end of the drug delivery device is arranged in the first through hole; the bottom plate is provided with a second through-hole, the injection device is installed in the second through-hole, and the second through-hole is matched with the first through-hole. In the embodiment of the application, when the administration device, the control device and the injection device are separated, the main body shell does not need to be disassembled, and the operation is simple.

Description

Integrative balanced formula liquid medicine infusion system that applies ointment or plaster

Technical Field

The embodiment of the application relates to the field of medical equipment, in particular to an integrated balance application type liquid medicine infusion system.

Background

Current application type liquid medicine infusion systems are commonly used for the treatment of diseases such as diabetes. The application type liquid medicine infusion system stores liquid medicine such as insulin, can be applied and fixed on the skin surface of a person or other living bodies, and can inject the liquid medicine into the body of the person or other living bodies at any time and any place according to needs.

An application-type medical fluid infusion system generally includes an injection device, a drug delivery device, a base plate, a main housing, and a control device, wherein the injection device, the drug delivery device, and the control device are disposed in the main housing, the main housing is disposed on the base plate, and the base plate is applied and fixed to a skin surface of a person or other living body by an adhesive member such as an adhesive tape.

Because injection device, dosing device and controlling means all set up in the main part shell, when needs will dosing device, controlling means and injection device separation, need open the main part shell, the operation is complicated.

Disclosure of Invention

The embodiment of the application provides an integrative balanced application type liquid medicine infusion system for providing an application type liquid medicine infusion system convenient to with dosing device, controlling means and injection device separation.

The embodiment of the application provides an integrative balanced application formula liquid medicine infusion system, includes: the device comprises an injection device, a drug delivery device, a bottom plate, an adhesive piece, a main body shell and a control device;

the control device is arranged in the main body shell, and the injection device, the administration device and the main body shell are arranged on the bottom plate; the adhesive member is fixedly arranged on one side of the bottom plate far away from the main body shell and is used for adhering the bottom plate to skin;

the drug delivery device is used for storing liquid medicine, and the output end of the drug delivery device is connected with the input end of the injection device; the control device is used for controlling the drug delivery device to output the liquid medicine to the injection device;

the main body shell is provided with a first through hole, and the output end of the drug delivery device is arranged in the first through hole;

the bottom plate is provided with the second clearance hole that link up, and injection device installs in the second clearance hole, and the second clearance hole matches with first clearance hole.

In the embodiment of the application, the main body shell is provided with the first through hole, the bottom plate is provided with the second through hole, the second through hole is matched with the first through hole, and the first through hole and the second through hole are communicated in a using state. The output end of the drug delivery device is arranged at the first clearance hole, the injection device is arranged at the second clearance hole, and the output end of the drug delivery device is connected with the injection device. The control device is arranged in the main body shell, and the drug delivery device and the injection device are both arranged outside the main body shell. When the administration device, the control device and the injection device are separated, the main body shell does not need to be disassembled, and the operation is simple.

In an implementation manner of the embodiment of the application, the second clearance hole is disposed in a central preset area of the bottom plate.

In the embodiment of the application, the second clearance hole is arranged in the central preset area of the bottom plate, so that the injection device can be arranged at the integral central position of the integrated balanced application type liquid medicine infusion system, and compared with the second clearance hole arranged in the edge area of the bottom plate, the injection device has smaller movement amplitude relative to the skin, and the skin damage caused by the large-amplitude movement of the injection device is reduced.

In an implementation manner of the embodiment of the application, the output end of the drug delivery device is inserted into the first clearance hole from the side of the main body shell far away from the bottom plate, the injection device is installed in the second clearance hole of the bottom plate, and the injection device is inserted into the first clearance hole from the side of the main body shell near the bottom plate.

In this application embodiment, the output of the device of dosing and injection apparatus insert first clearance hole from the both sides of first clearance hole respectively, and the device of dosing, controlling means and injection apparatus are more convenient for the dismouting.

In one implementation of the embodiment of the present application, the injection device includes a remaining needle and a needle seat, and the needle seat is used for installing the remaining needle on the bottom plate.

In this application embodiment, use the needle file can stabilize more and will keep somewhere the needle and install on the bottom plate to the needle file can cooperate with the output of the device of dosing, be convenient for connect with split injection device and the output of the device of dosing.

In an implementation manner of the embodiment of the application, the main body casing is provided with an installation buckle in the first clearance hole, and the installation buckle is used for clamping the output end of the drug delivery device in the main body casing.

In the embodiment of the application, set up the installation buckle in first clearance hole, realized the demountable installation of the output of device of dosing and main body cover.

In an implementation manner of the embodiment of the application, a clamping groove is formed in a main body shell, and an elastic fixing buckle is arranged on a bottom plate;

the clamping groove is clamped with the elastic fixing buckle, so that the main body shell is installed on the bottom plate.

In the embodiment of the application, the elastic fixing buckle is arranged on the main body shell, so that the main body shell and the drug delivery device can be stably and conveniently installed on the bottom plate.

In an implementation of the embodiment of the present application, the adhesive member and the bottom plate are fixed by adhesive or ultrasonic welding.

In the embodiment of the application, the adhesive piece is fixed on the bottom plate by using glue or ultrasonic welding, and the connection is firm.

In one implementation of the embodiments of the present application, the drug delivery device is removably connected to the main body housing.

In the embodiment of the application, the administration device is detachably connected with the main body shell, so that the liquid medicine in the administration device can be conveniently replaced and supplemented.

In one implementation manner of the embodiment of the application, the drug delivery device comprises a drug storage device, a connecting pipe and a connecting needle head which are sequentially connected;

the control device is used for pumping out liquid medicine in the medicine storage device, so that the liquid medicine flows to the connecting needle head from the medicine storage device through the connecting pipe, the connecting needle head is installed in the first clearance hole, and the connecting needle head penetrates through the first clearance hole to be connected with the injection device.

In the embodiment of the application, the drug delivery device comprises a drug storage device, a connecting pipe and a connecting needle, wherein the connecting needle penetrates through the first clearance hole and the injection device, so that the connecting needle and the injection device can be quickly plugged and pulled out.

In an implementation manner of the embodiment of the application, the integrated balanced application type liquid medicine infusion system further comprises a blood sugar detector, the blood sugar detector is in communication connection with the control device, and the control device is used for controlling the medicine feeding device to output liquid medicine according to blood sugar data sent by the blood sugar detector. In the embodiment of the application, the blood sugar detector is used, so that the blood sugar can be effectively monitored, and the drug administration can be accurately controlled.

Drawings

FIG. 1 is a perspective view of an integrated balanced application-type medical fluid infusion system in accordance with an embodiment of the present application;

FIG. 2 is another perspective view of the integrated balanced patch medical fluid infusion system of the embodiments of the present application;

FIG. 3 is a perspective view of a base plate of the integrated balanced application-type medical fluid infusion system of the embodiments of the present application;

FIG. 4 is a perspective view of the drug delivery device and host housing of the integrated balanced patch-type medical fluid infusion system of the present application;

FIG. 5 is a perspective view of a drug delivery device of the integrated balanced patch-type medical fluid infusion system according to an embodiment of the present application;

FIG. 6 is another perspective view of a drug delivery device of the integrated balanced patch medical fluid infusion system of the embodiments of the present application;

FIG. 7 is a perspective view of a main body housing of the integrated balanced applicator medical fluid infusion system of the embodiments of the present application;

FIG. 8 is another perspective view of a main body housing of the integrated balanced applicator medical fluid infusion system of the embodiments of the present application;

FIG. 9 is a front view of a main body housing of the integrated balanced applicator medical fluid infusion system of an embodiment of the present application;

1. an injection device; 101. an indwelling needle; 2. a drug delivery device; 201. a medicine storage device; 202. a connecting pipe; 203. connecting a needle head; 3. a base plate; 301. a second clearance hole; 302. a welding point; 4. a main body housing; 401. a first clearance hole; 402. mounting a buckle; 403. the buckle is fixed elastically.

Detailed Description

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be implemented in other sequences than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The portable liquid medicine infusion system comprises an external liquid medicine infusion system and an application type liquid medicine infusion system. The external liquid medicine infusion system has the problems of large overall volume, winding and blockage of a catheter and large skin wound surface. The application type liquid medicine infusion system is small and portable, can be stuck on the skin and moves along with people or other organisms.

The application type liquid medicine infusion system is used for conveniently and continuously infusing liquid medicine to people or other organisms, and can be used for infusing various liquid medicines according to diseases needing to be treated. The most common application scenario of the current application type liquid medicine infusion system is for the treatment of diabetic patients, and insulin is stored in the application type liquid medicine infusion system to control the blood sugar value of the diabetic patients in all weather. In the following, an application-type liquid medicine infusion system for infusing insulin to a human diabetic patient will be described as an example, and such an application-type liquid medicine infusion system may also be referred to as an application-type insulin pump.

As shown in fig. 1 to 9, the present application provides an integrated balanced application type medical fluid infusion system, including: an injection device 1, a drug delivery device 2, a base plate 3, a main body housing 4 and a control device;

the control device is mounted in the main body housing 4, and the injection device 1, the drug delivery device 2 and the main body housing 4 are mounted on the bottom plate 3; the adhesive member is fixedly arranged on one side of the bottom plate 3 far away from the main body shell 4, and the adhesive member is used for adhering the bottom plate 3 to the skin;

the drug administration device 2 is used for storing liquid medicine, and the output end of the drug administration device 2 is connected with the input end of the injection device 1; the control device is used for controlling the drug delivery device 2 to output the drug liquid to the injection device 1;

the main body shell 4 is provided with a first through hole 401, and the output end of the administration device 2 is arranged in the first through hole 401;

the bottom plate 3 is provided with a through second clearance hole 301, the injection device 1 is mounted in the second clearance hole 301, and the second clearance hole 301 is matched with the first clearance hole 401.

As can be easily understood, the control device is arranged in the main body shell 4, the injection device 1 is fixed on the bottom plate 3, and the administration device 2 is detachably connected with the main body shell 4, so that the replacement is convenient; the drug delivery device 2 is firstly installed on the main body shell 4, then is installed on the bottom plate 3, and finally the output end of the drug delivery device 2 is inserted into the injection device 1 through the first clearance hole 401, and the injection device 1 is installed on the second clearance hole 301 of the bottom plate 3, so that the integrated design is realized; the base plate 3 is used to adhere the integrated balanced application type medical fluid infusion system to the skin.

In the embodiment of the present application, the main body case 4 is provided with the first through hole 401, the bottom plate 3 is provided with the second through hole 301, the second through hole 301 is matched with the first through hole 401, and in the use state, the first through hole 401 and the second through hole 301 are connected. The output end of the drug delivery device 2 is arranged in the first clearance hole 401, the injection device 1 is arranged in the second clearance hole 301, and the output end of the drug delivery device 2 is connected with the injection device 1. The control device is mounted within the main body housing 4 and both the drug delivery device 2 and the injection device 1 are mounted outside the main body housing 4. When the administration device 2 and the control device are separated from the injection device 1, the main body housing 4 does not need to be disassembled, and the operation is simple.

In addition, the problem that the wound surface of a patient is expanded continuously in the use process of the liquid medicine conveying device can be solved, and the problem that the whole structure is large in size is solved.

As shown in fig. 1 to 9, the present application provides an integrated balanced application type medical fluid infusion system, which comprises an injection device 1, a drug delivery device 2, a base plate 3, a main body housing 4 and a control device.

The injection device 1 comprises an indwelling needle 101 and a needle hub. The needle hub comprises a flexible sealing member so that the output end of the drug delivery device 2 pierces the flexible sealing member for infusion of the drug solution. The flexible seal may be a rubber member. The indwelling needle 101 may be a vertical indwelling needle 101.

The device 2 of dosing is including the medicine storage 201, the connecting pipe 202 and the connection syringe needle 203 that connect gradually, and the device 2 of dosing still includes the shell of the device 2 of dosing, and the shell of the device 2 of dosing is cylindricly, and the one end of the shell of the device 2 of dosing is provided with the external screw thread, and this external screw thread is used for with the interior screw-thread fit on the main body cover 4. It should be noted that the housing of the drug delivery device 2 may also be detachably connected to the main body housing 4 by a snap. A flexible seal may be provided at a side close to the main body housing 4 to facilitate the insertion of the connection needle 203 into the first clearance hole 401 and the piercing of the flexible seal.

The present embodiment further includes a power supply device, and the control device and the power supply device are installed in the main body casing 4. Note that the main body case 4 can be replaced with the power supply device without being detached. The power supply means may be a battery. The main body case 4 may further be provided with a charging port for charging the power supply device. The power supply means is adapted to supply electrical energy to the drug delivery device 2 and the control means.

The present embodiment further includes an adhesive member fixed to the side of the base plate 3 away from the main body case 4 by ultrasonic welding. The base plate 3 is provided with a weld 302, and the weld 302 is used for connecting with an adhesive member. It should be noted that the adhesive member may also be fixed to the side of the bottom plate 3 away from the main body case 4 by an adhesive. The adhesive member may be an adhesive tape.

The output end of the drug delivery device 2 is a connection needle 203, and the connection needle 203 is capable of piercing the flexible seal. The drug reservoir 201 of the medication administering device 2 stores a drug solution therein. The control device sends a dosing command to pump a volume of liquid medicine out of the reservoir 201 at a rate. After flowing out of the medicine container 201, the liquid medicine flows through the connection tube 202, the connection needle 203, and the indwelling needle 101 in this order, and finally flows into the body of a person or other living body. The driving main machine in the control device can be a motor or an electric pump.

The control device may be in a timed mode or a monitoring mode. In the timing mode, the control device sends a drug administration command to the driving host according to the preset drug administration time, so that the driving host works in the preset drug administration time to finish drug administration. In the monitoring mode, the integrated balanced application-type medical fluid infusion system of the embodiment further comprises a blood glucose detector. The blood sugar detector detects the blood sugar of a person or other organisms to obtain blood sugar data, and sends the blood sugar data to the control device. The control device receives blood sugar data sent by the blood sugar detector, judges whether the current blood sugar value is larger than a preset value or not, sends a dosing instruction to the driving host if the current blood sugar value is larger than the preset value, and does not send the dosing instruction to the driving host if the current blood sugar value is not larger than the preset value. The blood sugar detector can communicate with the control device by means of Bluetooth and the like.

In this embodiment, the main body case 4 is provided with a first clearance hole 401, and the bottom plate 3 is provided with a second clearance hole 301. When the main body case 4 is mounted on the bottom plate 3, the first clearance hole 401 and the second clearance hole 301 are continuously communicated. The first clearance holes 401 and the second clearance holes 301 may be circular holes. An installation buckle 402 is arranged in the first clearance hole 401, and the connecting needle 203 of the drug delivery device 2 is clamped in the first clearance hole 401 through the installation buckle 402. The injection device 1 is clamped with the second clearance hole 301 through the needle holder. The injection device 1 is inserted into the first clearance hole 401 from the side of the main body case 4 close to the bottom plate 3, and the connection needle 203 is inserted into the first clearance hole 401 from the side of the main body case 4 away from the bottom plate 3. The connecting needle 203 penetrates through the first clearance hole 401 to be connected with the injection device 1, and the connecting needle 203 punctures the flexible sealing piece to perform liquid medicine infusion. The connecting needle 203 is provided with a connecting buckle matched with the mounting buckle 402 in the first clearance hole 401, and the mounting buckle 402 and the connecting buckle are detachably connected.

The second clearance hole 301 is arranged in a central preset area of the bottom plate 3, the boundary of the central preset area of the bottom plate 3 and the edge of the bottom plate 3 are greater than a first preset distance, and the first preset distance can be 1 cm, 2 cm or 3 cm and the like; or the geometric center of the central preset area of the bottom plate 3 and the geometric center of the bottom plate 3 are smaller than a second preset distance, and the second preset distance may be 1 cm, 2 cm or 3 cm, etc.

Since the second clearance hole 301 is matched with the first clearance hole 401, the first clearance hole 401 is arranged in the central preset area of the main body housing 4, and the position of the first clearance hole 401 can be determined according to the position of the second clearance hole 301 and the installation positions of the bottom plate 3 and the main body housing 4, thereby realizing the balanced design.

The main body housing 4 is provided with an elastic fixing buckle 403, and the bottom plate 3 is clamped with the elastic fixing buckle 403, so that the control device is installed on the bottom plate 3. It should be noted that the housing of the drug delivery device 2 may also be provided with a resiliently fixed catch 403 such that the control device and the drug delivery device 2 are mounted on the base plate 3.

As shown in fig. 1 to 9, the present application provides an integrated balanced application type medical fluid infusion system, including: an injection device 1, a drug delivery device 2, a base plate 3, an adhesive member, a main body housing 4 and a control device;

the control device is arranged in a main body shell 4, and the injection device 1, the drug delivery device 2 and the main body shell 4 are arranged on the bottom plate 3; the injection device 1 is mounted on the base plate 3; the adhesive member is fixedly arranged on one side of the bottom plate 3 far away from the main body shell 4 and is used for adhering the bottom plate 3 to the skin; wherein the drug delivery device 2 can be mounted on the main body case 4 and then mounted on the base plate 3 together with the main body case 4;

the drug delivery device 2 is used for storing liquid medicine, and the output end of the drug delivery device 2 is connected with the input end of the injection device 1; the control device is used for controlling the drug delivery device 2 to output the drug solution to the injection device 1;

the main body shell 4 is provided with a first through hole 401, and the output end of the drug delivery device 2 is arranged in the first through hole 401;

The second clearance hole 301 is provided in a central preset area of the base plate 3, so that the injection device 1 can be disposed at a central position of the whole of the integrated balanced application-type medical fluid infusion system.

The output end of the medication administering device 2 is inserted into the first clearance hole 401 from the side of the main body case 4 away from the bottom plate 3, the injection device 1 is mounted to the second clearance hole 301 of the bottom plate 3, and the injection device 1 is inserted into the first clearance hole 401 from the side of the main body case 4 close to the bottom plate 3.

The injection device 1 includes an indwelling needle 101 and a needle holder for mounting the indwelling needle 101 to the base plate 3.

The main body case 4 is provided with an installation buckle 402 in the first clearance hole 401, and the installation buckle 402 is used for clamping the output end of the drug delivery device 2 to the main body case 4.

A clamping groove is formed in the main body shell 4, and an elastic fixing buckle 403 is arranged on the bottom plate 3;

the engaging groove is engaged with the elastic fixing buckle 403, so that the main body case 4 is mounted on the base plate 3.

The sticky piece and the bottom plate 3 are fixed by ultrasonic welding, and one side of the bottom plate 3, which is far away from the main body shell 4, is provided with a plurality of welding points 302. Alternatively, the adhesive member is fixed to the base plate 3 by an adhesive.

The drug delivery device 2 and the main body housing 4 are detachably connected.

The administration device 2 comprises a medicine storage device 201, a connecting pipe 202 and a connecting needle 203 which are connected in sequence;

the control device comprises a driving main machine which is used for pumping out the liquid medicine in the medicine storage device 201, so that the liquid medicine flows from the medicine storage device 201 to the connecting needle 203 through the connecting pipe 202, the connecting needle 203 is arranged in the first clearance hole 401, and the connecting needle 203 penetrates through the first clearance hole 401 to be connected with the injection device 1.

The integrated balanced application type liquid medicine infusion system further comprises a blood sugar detector, the blood sugar detector is in communication connection with the control device, and the control device is used for controlling the drug delivery device 2 to output liquid medicine according to blood sugar data sent by the blood sugar detector.

As shown in fig. 1 to 9, the present application provides an integrated balanced application type medical fluid infusion system, including: control means, drug delivery device 2, injection device 1, base plate 3 and adhesive plaster. The injection device 1 may be referred to as an indwelling needle 101 assembly comprising an indwelling needle 101 and a hub, the indwelling needle 101 assembly being centrally located on the base plate 3. The adhesive plaster is adhered on the bottom plate 3, and the fixing mode between the two can be ultrasonic welding or adhesive fixing. The control device is secured to the base plate 3 by means of a resilient securing catch 403. The control device is connected with the drug delivery device 2 through threads, one end of the drug delivery device 2 is provided with a connecting needle 203, and the connecting needle penetrates through the space-avoiding positioning design of the control device, pierces through a rubber piece at the top of the injection device 1 fixed on the bottom plate 3 and is communicated with an internal flow passage of the injection device 1. The main body shell 4 of the control device comprises a face shell and a bottom shell, the face shell is concave to form a cavity, the bottom shell covers the opening of the face shell to form a closed space with the face shell, and control devices such as a driving host, a push rod and a battery are arranged in the closed space. The drive host drives the push rod to move, so that the volume of the medicine storage device 201 is reduced, and the liquid medicine is pumped out of the medicine storage device 201. The embodiment adopts the design of applying the formula, directly pastes in user's belly, four limbs isopoint, need not in addition connecting tube, can directly paste skin and use, has saved long pipe, has reduced the volume, has increased the travelling comfort of portability, security and wearing. The injection device 1, the administration device 2 and the control device are designed to be separable, and the control device can be repeatedly used, so that the waste is reduced, and the cost is saved.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present application.

Claims

1. An integrative balanced application formula liquid medicine infusion system which characterized in that includes: the device comprises an injection device (1), a drug delivery device (2), a bottom plate (3), a viscous piece, a main body shell (4) and a control device;

the control device is mounted in the main body housing (4), and the injection device (1), the drug delivery device (2) and the main body housing (4) are mounted on the bottom plate (3); the adhesive piece is fixedly arranged on one side of the bottom plate (3) far away from the main body shell (4), and the adhesive piece is used for adhering the bottom plate (3) to the skin;

the drug delivery device (2) is used for storing liquid medicine, and the output end of the drug delivery device (2) is connected with the input end of the injection device (1); the control device is used for controlling the drug delivery device (2) to output the liquid medicine to the injection device (1);

the main body shell (4) is provided with a first through hole (401), and the output end of the drug delivery device (2) is installed in the first through hole (401);

the injection device is characterized in that the bottom plate (3) is provided with a through second clearance hole (301), the injection device (1) is installed in the second clearance hole (301), and the second clearance hole (301) is communicated with the first clearance hole (401).

2. The integrated balanced application-type medical fluid infusion system according to claim 1, wherein the second clearance hole (301) is provided at a central preset area of the base plate (3) so that the injection device (1) can be provided at a central position of the integrated balanced application-type medical fluid infusion system as a whole.

3. The integrated balanced application-type liquid medicine infusion system according to claim 1 or 2, wherein the output end of the administration device (2) is inserted into the first clearance hole (401) from the side of the main body case (4) away from the base plate (3), the injection device (1) is mounted to the second clearance hole (301) of the base plate (3), and the injection device (1) is inserted into the first clearance hole (401) from the side of the main body case (4) close to the base plate (3).

4. The integrated balanced application-type medical fluid infusion system according to claim 3, wherein the injection device (1) comprises an indwelling needle (101) and a needle hub for mounting the indwelling needle (101) to the base plate (3).

5. The integrated balanced application-type medical fluid infusion system according to claim 4, wherein the main body housing (4) is provided with a mounting clip (402) in the first clearance hole (401), the mounting clip (402) is used for clipping the output end of the drug delivery device (2) to the main body housing (4).

6. The integrated balanced application type liquid medicine infusion system according to claim 1, 2, 4 or 5, wherein the main body casing (4) is provided with a clamping groove, and the bottom plate (3) is provided with an elastic fixing buckle (403);

the clamping groove is clamped with the elastic fixing buckle (403) so that the main body shell (4) is installed on the bottom plate (3).

7. The integrated balanced application-type medical fluid infusion system according to claim 6, wherein the adhesive member is fixed to the base plate (3) by means of glue or ultrasonic welding.

8. The integrated balanced patch type medical fluid infusion system according to claim 1, 2, 4, 5 or 7, wherein said drug delivery device (2) and said main housing (4) are detachably connected.

9. The integrated balanced application-type liquid medicine infusion system according to claim 8, wherein the administration device (2) comprises a medicine reservoir (201), a connecting tube (202) and a connecting needle (203) which are connected in sequence;

the control device is used for pumping out the liquid medicine in the medicine storage device (201) so that the liquid medicine flows from the medicine storage device (201) to the connecting needle (203) through the connecting pipe (202), the connecting needle (203) is installed on the first clearance hole (401), and the connecting needle (203) penetrates through the first clearance hole (401) to be connected with the injection device (1).

10. The integrated balanced patch-type drug infusion system according to claim 1, 2, 4, 5, 7 or 9, further comprising a blood glucose meter communicatively connected to the control device, wherein the control device is configured to control the drug delivery device (2) to output the drug according to blood glucose data sent by the blood glucose meter.