CN211561342U

CN211561342U - Transfusion system

Info

Publication number: CN211561342U
Application number: CN201921716285.3U
Authority: CN
Inventors: 闫继荣
Original assignee: Guangyuan Central Hospital
Current assignee: Guangyuan Central Hospital
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-09-25
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses an infusion apparatus, which relates to the field of medical supplies and provides an infusion apparatus capable of flushing and sealing a tube. The transfusion system includes the transfer line and sets up the speed regulator on the transfer line, transfer line one end is for going out the liquid end, still include towards a tub tube sealing device, towards a tub tube sealing device sets up on the transfer line and lies in between speed regulator and the liquid end, towards a tub tube sealing device including towards a tub syringe, the tube sealing syringe, towards a tub connecting pipe, a tub connecting pipe and prevent the maloperation structure, towards a tub syringe and a tub syringe all are connected on the transfer line, towards a tub syringe through towards a tub connecting pipe and transfer line intercommunication, towards a tub of pre-filled with towards a tub liquid in the syringe, it passes through a tub connecting pipe and transfer line intercommunication to seal a tub syringe, be pre-filled with a tub liquid in the tube sealing syringe, prevent that maloperation structure can avoid maloperation towards a tub syringe. The tube washing and sealing device can also adopt other two modes. The utility model is mainly suitable for connecting the remaining needle for transfusion.

Description

Transfusion system

Technical Field

The utility model relates to the field of medical supplies, especially, relate to an infusion apparatus.

Background

The infusion apparatus is a common medical appliance and comprises an infusion tube, wherein the two ends of the infusion tube are respectively provided with a liquid inlet end and a liquid outlet end, the liquid inlet end is provided with a bottle plug puncture outfit, and the liquid outlet end is provided with a scalp needle. There are two ways to transfuse, one is that scalp needle directly pricks into blood vessel, and the other is that indwelling needle is connected to prick into blood vessel.

The indwelling needle is widely applied to infusion and can be stored for several days, thereby reducing the puncture times during infusion, reducing the pain of patients and relieving the workload of nurses. After the remaining needle is transfused, the tube washing and the tube sealing are required to be carried out in sequence. The flushing is to flush the residual liquid medicine in the indwelling needle catheter into the blood vessel by using flushing liquid, thereby clearing the liquid medicine accumulated in the catheter, reducing the risk of mutual contact of incompatible liquid medicines and preventing the occurrence of complications; the wash solution is typically saline. The tube sealing is to inject tube sealing liquid into the catheter of the indwelling needle and store the tube sealing liquid in the catheter, so that the blockage of the indwelling needle is avoided, and the smoothness of the indwelling needle in the next infusion is ensured; the tube sealing solution is usually diluted heparin solution.

The prior infusion apparatus is not convenient for arranging a wash pipe and a seal pipe. The traditional tube flushing and sealing mode is to separate the infusion apparatus from the indwelling needle and then to use a common injector, specifically, a nurse prepares tube flushing liquid and tube sealing liquid, and injects the prepared liquid into the indwelling needle after the liquid is absorbed by the injector. The process is complicated, the workload of nurses is large, and the efficiency is low.

In order to avoid the disadvantages of the conventional tube flushing and sealing methods, syringes prefilled with a tube flushing liquid or a tube sealing liquid have been developed, such as those disclosed in ZL 201520250047.3 and ZL 201820691725.3. The syringe pre-filled with the tube flushing liquid or the tube sealing liquid is used for flushing and sealing the tube, so that the operations of liquid preparation, liquid drawing and the like can be omitted, the operation process is simplified, the efficiency can be improved, and the workload of nurses is also reduced. However, even in this case, the nurse is required to perform operations such as preparing the prefilled syringe, carrying the prefilled syringe to the patient, and connecting the prefilled syringe to the indwelling needle, and therefore, there is room for improvement in this method.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: provides an infusion set capable of flushing and sealing a tube.

The technical scheme adopted for solving the problems is as follows: the transfusion system includes the transfer line and sets up the speed regulator on the transfer line, transfer line one end is for going out the liquid end, still include towards a tub tube sealing device, towards a tub tube sealing device sets up on the transfer line and lies in between speed regulator and the liquid end, towards a tub tube sealing device including towards a tub syringe, the tube sealing syringe, towards a tub connecting pipe, a tub connecting pipe and prevent the maloperation structure, towards a tub syringe and a tub syringe all are connected on the transfer line, towards a tub syringe through towards a tub connecting pipe and transfer line intercommunication, towards a tub of pre-filled with towards a tub liquid in the syringe, it passes through a tub connecting pipe and transfer line intercommunication to seal a tub syringe, be pre-filled with a tub liquid in the tube sealing syringe, prevent that maloperation structure can avoid maloperation towards a tub syringe.

Further, the method comprises the following steps: the anti-misoperation structure comprises two connecting rods, one connecting rod is connected with the syringe barrel and the piston rod of the flushing syringe, and the joint can be disconnected, and the other connecting rod is connected with the syringe barrel and the piston rod of the sealing syringe, and the joint can be disconnected.

Further, the method comprises the following steps: the anti-misoperation structure comprises two flow stopping clamps, one flow stopping clamp is arranged on the flushing pipe connecting pipe, and the other flow stopping clamp is arranged on the sealing pipe connecting pipe.

Another technical scheme adopted to solve the above problems is as follows: the infusion apparatus comprises an infusion tube and a speed regulator arranged on the infusion tube, wherein one end of the infusion tube is a liquid outlet end; the device also comprises a tube washing and sealing device, wherein the tube washing and sealing device comprises a device main body, two pistons, two piston rods and two adjusting valve cores; the device main body is internally provided with a transfusion through hole, two liquid storage holes and two connecting holes, and the two connecting holes are respectively communicated with the bottoms of the two liquid storage holes and the transfusion through hole; the two pistons are respectively positioned in the two liquid storage holes, and the two piston rods are respectively connected with the two pistons; the two liquid storage holes are respectively pre-filled with tube flushing liquid and tube sealing liquid; the two regulating valve cores are respectively arranged corresponding to the two connecting holes and can control whether the connecting holes are communicated or not; the part of the infusion tube between the speed regulator and the liquid outlet end is disconnected so as to be divided into two sections, and the two sections of infusion tubes are respectively communicated with the two ends of the infusion through hole.

Further, the method comprises the following steps: the adjusting valve core is controlled by rotation, the end face of the adjusting valve core does not exceed the device main body, and a tool adapting structure is arranged on the end face of the adjusting valve core.

Another technical scheme adopted to solve the above problems is as follows: the infusion apparatus comprises an infusion tube and a speed regulator arranged on the infusion tube, wherein one end of the infusion tube is a liquid outlet end; the device also comprises a tube washing and sealing device, wherein the tube washing and sealing device comprises a device main body, two pistons of a piston rod and two adjusting valve cores; the device main body is internally provided with a transfusion through hole, a liquid storage hole and two connecting holes, wherein the two connecting holes are a washing pipe connecting hole and a sealing pipe connecting hole respectively; the piston is positioned in the liquid storage hole, the two pistons are respectively a first piston and a second piston, the first piston is positioned between the washing pipe connecting hole and the bottom of the liquid storage hole and is close to the washing pipe connecting hole, pipe sealing liquid is pre-filled between the first piston and the bottom of the liquid storage hole, pipe washing liquid is pre-filled between the second piston and the first piston, and the piston rod is connected with the second piston; the two regulating valve cores are respectively arranged corresponding to the two connecting holes and can control whether the connecting holes are communicated or not; the part of the infusion tube between the speed regulator and the liquid outlet end is disconnected so as to be divided into two sections, and the two sections of infusion tubes are respectively communicated with the two ends of the infusion through hole.

The utility model has the advantages that: 1. the utility model discloses from having towards a tub tube sealing device, connecting and keeping somewhere the needle infusion back, operation towards a tub tube sealing device can directly carry out towards a tub and a tub, does not need the nurse to prepare the pre-filled syringe, carries pre-filled syringe to patient department, with pre-filled syringe and keep somewhere the operation such as needle connection. Therefore, the utility model can simplify the operation of indwelling needle infusion, reduce the workload of nurses and improve the efficiency, and can reduce the infection probability of patients.

Drawings

FIG. 1 is a first configuration of an infusion set;

FIG. 2 is an enlarged view of a wash tube sealing device of the first infusion apparatus;

FIG. 3 is a second configuration of infusion set;

FIG. 4 is an enlarged view of a wash tube sealing device of a second infusion apparatus;

FIG. 5 is a sectional view of a wash tube sealing device of a second infusion set;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is a view showing the construction of a third infusion set;

FIG. 8 is an enlarged view of the wash tube sealing device of the third infusion set;

FIG. 9 is a sectional view of a wash tube sealing device of a third infusion set;

FIG. 10 is a cross-sectional view B-B of FIG. 9;

labeled as: the device comprises a transfusion tube 1, a liquid outlet end 1-1, a speed regulator 2, a washing tube sealing device 3, a washing tube injector 3-1, a sealing tube injector 3-2, a washing tube connecting tube 3-3, a sealing tube connecting tube 3-4, an anti-misoperation structure 3-5, a device main body 3-6, a transfusion through hole 3-6-1, a liquid storage hole 3-6-2, a connecting hole 3-6-3, a piston rod 3-7, an adjusting valve core 3-8, a tool adapting structure 3-8-1, a valve core hole 3-8-2, a piston 3-9, washing tube liquid 3-10, sealing tube liquid 3-11 and an indwelling needle 4.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

The first infusion set structure is shown in figures 1 and 2: the infusion apparatus comprises an infusion tube 1 and a speed regulator 2 arranged on the infusion tube 1, one end of the infusion tube 1 is a liquid outlet end 1-1, the infusion apparatus further comprises a tube flushing and sealing device 3, the tube flushing and sealing device 3 is arranged on the infusion tube 1 and is positioned between the speed regulator 2 and the liquid outlet end 1-1, the tube flushing and sealing device 3 comprises a tube flushing injector 3-1, a tube sealing injector 3-2, a tube flushing connecting tube 3-3, a tube sealing connecting tube 3-4 and an anti-misoperation structure 3-5, the tube flushing injector 3-1 and the tube sealing injector 3-2 are both connected on the infusion tube 1, the tube flushing injector 3-1 is communicated with the infusion tube 1 through the tube flushing connecting tube 3-3, the tube flushing injector 3-1 is pre-filled with tube flushing liquid 3-10, the tube sealing injector 3-2 is communicated with the infusion tube 1 through the tube sealing connecting tube 3, the tube sealing injector 3-2 is pre-filled with tube sealing liquid 3-11, and the misoperation preventing structure 3-5 can avoid misoperation of the tube flushing injector 3-1 and the tube sealing injector 3-2.

The infusion apparatus is provided with a tube flushing and sealing device 3, after the infusion apparatus is connected with an indwelling needle 4 for infusion, a speed regulator 2 is closed to prevent the backflow of tube flushing liquid 3-10 and tube sealing liquid 3-11, the locking of a tube flushing injector 3-1 and a tube sealing injector 3-2 by an anti-misoperation structure 3-5 is released, then the tube flushing injector 3-1 and the tube sealing injector 3-2 are sequentially operated, and the tube flushing liquid 3-10 and the tube sealing liquid 3-11 are sequentially injected into the indwelling needle 4. It is thus clear that the utility model discloses connect and keep somewhere 4 back of infusing of needle, the operation towards the pipe sealing device 3 can directly carry out towards the pipe and seal the pipe, does not need the nurse to prepare the pre-filled syringe, carries pre-filled syringe to patient department, with the pre-filled syringe with keep somewhere the operation such as needle connection.

The washing tube injector 3-1 and the sealing tube injector 3-2 are the same as the conventional pre-filled injector. The anti-misoperation structure 3-5 is used for preventing the tube flushing liquid 3-10 or the tube sealing liquid 3-11 from flowing out in advance due to the fact that the tube flushing injector 3-1 or the tube sealing injector 3-2 is pushed carelessly.

The anti-misoperation structure 3-5 can be two connecting rods, one connecting rod is connected with the syringe barrel and the piston rod of the flushing syringe 3-1, and the joint can be disconnected, and the other connecting rod is connected with the syringe barrel and the piston rod of the sealing syringe 3-2, and the joint can be disconnected. The connecting rod can prevent the piston from moving, so that the phenomenon that the tube flushing liquid 3-10 or the tube sealing liquid 3-11 flows out in advance due to misoperation can be avoided. The connecting rod is connected with the syringe barrel and the piston rod, and the connection part can be disconnected, namely the connection is weak, the connecting rod can be broken off with the fingers and thumb forcibly, and the connecting rod can be broken off with the fingers and thumb forcibly when the tube is flushed and sealed. The anti-misoperation structure 3-5 can also be two flow stopping clamps, one flow stopping clamp is arranged on the flushing pipe connecting pipe 3-3, and the other flow stopping clamp is arranged on the sealing pipe connecting pipe 3-4. The stop clamp is closed to prevent the pipe flushing liquid 3-10 or the pipe sealing liquid 3-11 from flowing out, and the stop clamp is opened to perform the pipe flushing and pipe sealing operation.

The first infusion apparatus mainly adopts the existing wash tube injector 3-1 and the seal tube injector 3-2, and has simpler structures.

The second infusion set structure is shown in fig. 3 to 6: the infusion apparatus comprises an infusion tube 1 and a speed regulator 2 arranged on the infusion tube 1, wherein one end of the infusion tube 1 is a liquid outlet end 1-1; the device also comprises a tube washing and sealing device 3, wherein the tube washing and sealing device 3 comprises a device main body 3-6, two pistons 3-9, two piston rods 3-7 and two adjusting valve cores 3-8; the device main body 3-6 is internally provided with an infusion through hole 3-6-1, two liquid storage holes 3-6-2 and two connecting holes 3-6-3, and the two connecting holes 3-6-3 are respectively communicated with the bottoms of the two liquid storage holes 3-6-2 and the infusion through hole 3-6-1; the two pistons 3-9 are respectively positioned in the two liquid storage holes 3-6-2, and the two piston rods 3-7 are respectively connected with the two pistons 3-9; the two liquid storage holes 3-6-2 are respectively pre-filled with a tube flushing liquid 3-10 and a tube sealing liquid 3-11; the two regulating valve cores 3-8 are respectively arranged corresponding to the two connecting holes 3-6-3 and can control whether the connecting holes 3-6-3 are communicated or not; the part of the transfusion tube 1 between the speed regulator 2 and the liquid outlet end 1-1 is disconnected so as to be divided into two sections, and the two sections of transfusion tubes 1 are respectively communicated with the two ends of the transfusion through hole 3-6-1.

During transfusion, the valve core 3-8 is adjusted to disconnect the connecting hole 3-6-3, so that the tube flushing liquid 10 and the tube sealing liquid 11 are prevented from flowing out. When the pipe is flushed and sealed, the valve core 3-8 is adjusted to communicate the connecting holes 3-6-3, and the piston rod 3-7 is pushed to flush and seal the pipe.

The adjusting valve core 3-8 can refer to the valve core design of the existing medical three-way joint, namely the adjusting valve core 3-8 realizes control through rotation. As shown in figures 5 and 6, the regulating valve core 3-8 is provided with a valve core hole 3-8-2, the valve core hole 3-8-2 is opposite to the connecting hole 3-6-3, then the connecting hole 3-6-3 is communicated, and the valve core hole 3-8-2 is vertical to the connecting hole 3-6-3, then the connecting hole 3-6-3 is disconnected.

The adjusting valve core 3-8 can be connected with a knob exposed out of the device main body 3-6 for operation, but in this case, the patient can also operate, and the misoperation prevention effect is poor. In order to further improve the anti-misoperation effect, the end face of the adjusting valve core 3-8 does not exceed the device main body 3-6, and a tool adapting structure 3-8-1 is arranged on the end face of the adjusting valve core 3-8. At this time, a special tool is required to be inserted into the device body 3-6 and combined with the tool adapting structure 3-8-1 to rotate the regulating valve cartridge 3-8, and only a nurse carrying the special tool can operate the regulating valve cartridge 3-8, so that the misoperation prevention effect is excellent. The tool adapting structure 3-8-1 and the tool can be arranged by referring to the existing screwdriver groove and the screwdriver, and the groove type of the tool adapting structure 3-8-1 can be designed more specially. The special tool is very small and can be carried by a nurse.

The tube flushing and sealing device 3 of the second infusion apparatus is more compact in structure and better in misoperation prevention effect than the tube flushing and sealing device 3 of the first infusion apparatus.

The third infusion set configuration is shown in fig. 7-10: the infusion apparatus comprises an infusion tube 1 and a speed regulator 2 arranged on the infusion tube 1, wherein one end of the infusion tube 1 is a liquid outlet end 1-1; the device also comprises a tube washing and sealing device 3, wherein the tube washing and sealing device 3 comprises a device main body 3-6, a piston rod 3-7, two pistons 3-9 and two adjusting valve cores 3-8; the device main body 3-6 is internally provided with a transfusion through hole 3-6-1, a liquid storage hole 3-6-2 and two connecting holes 3-6-3, the two connecting holes 3-6-3 are respectively a wash pipe connecting hole and a seal pipe connecting hole, the seal pipe connecting hole is communicated with the bottom of the liquid storage hole 3-6-2 and the transfusion through hole 3-6-1, the wash pipe connecting hole is communicated with the liquid storage hole 3-6-2 and the transfusion through hole 3-6-1 and is spaced from the seal pipe connecting hole; the piston 3-9 is positioned in the liquid storage hole 3-6-2, the two pistons 3-9 are respectively a first piston and a second piston, the first piston is positioned between the washing pipe connecting hole and the bottom of the liquid storage hole 3-6-2 and close to the washing pipe connecting hole, the tube sealing liquid 3-11 is prefilled between the first piston and the bottom of the liquid storage hole 3-6-2, the tube washing liquid 3-10 is prefilled between the second piston and the first piston, and the piston rod 3-7 is connected with the second piston 3-9; the two regulating valve cores 3-8 are respectively arranged corresponding to the two connecting holes 3-6-3 and can control whether the connecting holes 3-6-3 are communicated or not; the part of the transfusion tube 1 between the speed regulator 2 and the liquid outlet end 1-1 is disconnected so as to be divided into two sections, and the two sections of transfusion tubes 1 are respectively communicated with the two ends of the transfusion through hole 3-6-1.

During transfusion, the valve core 3-8 is adjusted to ensure that the connecting hole 3-6-3 is not communicated, so that the tube flushing liquid 10 and the tube sealing liquid 11 are prevented from flowing out. When a pipe is flushed, the valve core 3-8 is adjusted to enable the connecting holes of the flushing pipe to be communicated, the piston rod 3-7 is pushed, and the second piston extrudes flushing liquid 3-10; at the moment, the pipe sealing connecting hole is broken, the pipe sealing liquid 3-11 cannot flow out, and the first piston does not move. When the pipe is sealed, the valve core 3-8 is adjusted to disconnect the pipe flushing connecting hole and connect the pipe sealing connecting hole, the piston rod 3-7 is continuously pushed, the second piston pushes the first piston, and the pipe sealing liquid 3-11 flows out to realize pipe sealing.

The same as the second infusion apparatus, the regulating valve core 3-8 is controlled by rotation, the end surface of the regulating valve core 3-8 does not exceed the device main body 3-6, and the end surface of the regulating valve core 3-8 is provided with a tool adapting structure 3-8-1.

Compared with the second infusion apparatus, the third infusion apparatus integrates the two liquid storage holes 3-6-2 into a whole, the liquid storage holes 3-6-2 are segmented by adopting the first piston, and the tube flushing and tube sealing can be realized by only arranging one piston rod 3-7, and the tube flushing and tube sealing device 3 has a more compact structure than the tube flushing and tube sealing device 3 of the second infusion apparatus.

The three transfusion devices of the utility model integrate the washing tube sealing device 3 into the transfusion device in different modes. Although the cost of the infusion set is increased relative to the existing infusion set, the total cost of the infusion set is not increased due to the elimination of the existing wash-tube injector and seal-tube injector. In the present washing tube sealing mode, wash the liquid of managing and seal the liquid quantity of managing and be 5mL usually, this use is novel because partial liquid persists in transfer line 1, and the liquid quantity is slightly bigger, but does not exceed 10 mL. The amount of the liquid for flushing 3-10 and the liquid for sealing 3-11 is small, the volume and the weight of the device for flushing and sealing 3 are small, and the normal transfusion is not influenced.

The utility model is mainly suitable for connecting the remaining needle for transfusion, and the transfusion mode that the scalp needle directly pierces the blood vessel can be also applied.

Claims

1. Transfusion system, including transfer line (1) and speed regulator (2) of setting on transfer line (1), transfer line (1) one end is for going out liquid end (1-1), its characterized in that: comprises a tube washing and sealing device (3), the tube washing and sealing device (3) is arranged on the infusion tube (1) and is positioned between the speed regulator (2) and the liquid outlet end (1-1), the tube washing and sealing device (3) comprises a tube washing injector (3-1), a tube sealing injector (3-2), a tube washing connecting tube (3-3), a tube sealing connecting tube (3-4) and an anti-misoperation structure (3-5), the tube washing injector (3-1) and the tube sealing injector (3-2) are both connected on the infusion tube (1), the tube washing injector (3-1) is communicated with the infusion tube (1) through the tube washing connecting tube (3-3), the tube washing injector (3-1) is pre-filled with tube washing liquid (3-10), the tube sealing injector (3-2) is communicated with the infusion tube (1) through the tube sealing connecting tube (3-4), the tube sealing injector (3-2) is pre-filled with tube sealing liquid (3-11), and the anti-misoperation structure (3-5) can avoid the misoperation of flushing the tube injector (3-1) and sealing the tube injector (3-2).

2. The infusion set according to claim 1, characterized in that: the anti-misoperation structure (3-5) comprises two connecting rods, one connecting rod is connected with the syringe barrel and the piston rod of the flushing syringe (3-1), and the joint can be disconnected, and the other connecting rod is connected with the syringe barrel and the piston rod of the sealing syringe (3-2).

3. The infusion set according to claim 1, characterized in that: the anti-misoperation structure (3-5) is composed of two flow stopping clamps, one flow stopping clamp is arranged on the flushing pipe connecting pipe (3-3), and the other flow stopping clamp is arranged on the sealing pipe connecting pipe (3-4).

4. The infusion apparatus comprises an infusion tube (1) and a speed regulator (2) arranged on the infusion tube (1), wherein one end of the infusion tube (1) is a liquid outlet end (1-1); the method is characterized in that: the device comprises a tube washing and sealing device (3), wherein the tube washing and sealing device (3) comprises a device main body (3-6), two pistons (3-9), two piston rods (3-7) and two adjusting valve cores (3-8); the device main body (3-6) is internally provided with an infusion through hole (3-6-1), two liquid storage holes (3-6-2) and two connecting holes (3-6-3), and the two connecting holes (3-6-3) are respectively communicated with the bottoms of the two liquid storage holes (3-6-2) and the infusion through hole (3-6-1); the two pistons (3-9) are respectively positioned in the two liquid storage holes (3-6-2), and the two piston rods (3-7) are respectively connected with the two pistons (3-9); the two liquid storage holes (3-6-2) are respectively pre-filled with a tube flushing liquid (3-10) and a tube sealing liquid (3-11); the two regulating valve cores (3-8) are respectively arranged corresponding to the two connecting holes (3-6-3) and can control whether the connecting holes (3-6-3) are communicated or not; the part of the transfusion tube (1) between the speed regulator (2) and the liquid outlet end (1-1) is disconnected so as to be divided into two sections, and the two sections of transfusion tubes (1) are respectively communicated with the two ends of the transfusion through hole (3-6-1).

5. The infusion set according to claim 4, characterized in that: the adjusting valve core (3-8) is controlled by rotation, the end face of the adjusting valve core (3-8) does not exceed the device main body (3-6), and the end face of the adjusting valve core (3-8) is provided with a tool adapting structure (3-8-1).

6. The infusion apparatus comprises an infusion tube (1) and a speed regulator (2) arranged on the infusion tube (1), wherein one end of the infusion tube (1) is a liquid outlet end (1-1); the method is characterized in that: the device comprises a tube washing and sealing device (3), wherein the tube washing and sealing device (3) comprises a device main body (3-6), a piston rod (3-7), two pistons (3-9) and two adjusting valve cores (3-8); the device main body (3-6) is internally provided with an infusion through hole (3-6-1), a liquid storage hole (3-6-2) and two connecting holes (3-6-3), the two connecting holes (3-6-3) are respectively a washing pipe connecting hole and a sealing pipe connecting hole, the sealing pipe connecting hole is communicated with the bottom of the liquid storage hole (3-6-2) and the infusion through hole (3-6-1), and the washing pipe connecting hole is communicated with the liquid storage hole (3-6-2) and the infusion through hole (3-6-1) and is spaced from the sealing pipe connecting hole; the piston (3-9) is positioned in the liquid storage hole (3-6-2), the two pistons (3-9) are respectively a first piston and a second piston, the first piston is positioned between the washing pipe connecting hole and the bottom of the liquid storage hole (3-6-2) and close to the washing pipe connecting hole, the tube sealing liquid (3-11) is prefilled between the first piston and the bottom of the liquid storage hole (3-6-2), the tube washing liquid (3-10) is prefilled between the second piston and the first piston, and the piston rod (3-7) is connected with the second piston (3-9); the two regulating valve cores (3-8) are respectively arranged corresponding to the two connecting holes (3-6-3) and can control whether the connecting holes (3-6-3) are communicated or not; the part of the transfusion tube (1) between the speed regulator (2) and the liquid outlet end (1-1) is disconnected so as to be divided into two sections, and the two sections of transfusion tubes (1) are respectively communicated with the two ends of the transfusion through hole (3-6-1).

7. The infusion set according to claim 6, characterized in that: the adjusting valve core (3-8) is controlled by rotation, the end face of the adjusting valve core (3-8) does not exceed the device main body (3-6), and the end face of the adjusting valve core (3-8) is provided with a tool adapting structure (3-8-1).