CN209933678U

CN209933678U - Electric portable transfusion device

Info

Publication number: CN209933678U
Application number: CN201920576929.7U
Authority: CN
Inventors: 鲁传文
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-14
Anticipated expiration: 2029-04-25

Abstract

The utility model belongs to the technical field of the infusion, a electronic portable infusion set is provided. The utility model comprises a medicine bottle assembly, an infusion pump assembly and an infusion tube assembly; the medicine bottle assembly comprises a bottle body and a partition, the partition is arranged in an inner cavity of the bottle body and divides the inner cavity of the bottle body into an air cavity and a liquid cavity, and when the state of the partition is changed, the volume of the liquid cavity is reduced along with the increase of the volume of the air cavity; the air cavity is communicated with the infusion pump assembly, the liquid cavity is communicated with the infusion tube assembly, air is conveyed into the air cavity through the infusion pump assembly, the volume of the air cavity is further expanded, the volume of the liquid cavity is reduced, and the liquid medicine is pushed out of the liquid cavity and finally conveyed to a human body. In the process of infusion, the medicine bottle does not need to be lifted, and the medicine bottle can be carried about, so that the patient can move freely, and the medicine bottle can be put into a clothes pocket, a backpack or a handbag at any angle, clamped between the waist, bound on the shoulder and other carrying modes.

Description

Electric portable transfusion device

Technical Field

The utility model relates to an infusion technical field, concretely relates to electronic portable infusion set.

Background

The traditional infusion mode is to make the liquid medicine flow downwards under the action of gravity and then inject the liquid medicine into a human body, and has the defects that a medicine bottle must be higher than the human body for a certain distance, so that a patient is inconvenient to move, the adjustment range of the medicine administration speed is small, and a pressurizing bag must be used for pressurizing in emergency situations and during rapid medicine administration. And the prior device for transfusion by utilizing external energy has high cost, large volume and complex operation, and the patient can not move freely and conveniently.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides an electronic portable infusion set carries the air through the transfer pump assembly to the air cavity in, lets the air cavity volume grow to make the separator between air cavity and the sap cavity promote the liquid medicine, the liquid medicine enters into the human body through the transfer line assembly, so that the position that the bottle was placed can be more nimble, and other waist, put at knapsack or clothes pocket all can.

In order to achieve the purpose, the electric portable transfusion device provided by the utility model comprises a medicine bottle assembly, a transfusion pump assembly and a transfusion tube assembly; the medicine bottle assembly comprises a bottle body and a partition, the partition is arranged in an inner cavity of the bottle body and divides the inner cavity of the bottle body into an air cavity and a liquid cavity, and when the state of the partition is changed, the volume of the liquid cavity is reduced along with the increase of the volume of the air cavity; the air cavity is communicated with the infusion pump assembly, and the liquid cavity is communicated with the infusion tube assembly.

The technical principle of the scheme is as follows:

the medicine bottle assembly in this scheme adopts for disposable, the liquid medicine is just built-in the bottle when leaving the factory, the liquid medicine is located the liquid intracavity, usually for convenient transportation, the liquid medicine in the liquid intracavity can not fill up completely, can remain some air in the liquid intracavity, need discharge the air when using, specifically with transfer line assembly and bottle switch-on earlier, then upwards with the bottleneck of bottle, drive through the transfer pump assembly and aerify to the air cavity, the state of separator changes, the volume grow of air cavity, the volume in liquid cavity diminishes, the air in this in-process liquid cavity is at first discharged completely, then insert the human body with the transfer line assembly, thereafter aerify to the air cavity through the transfer pump assembly, the volume of air cavity is more and more big, the volume in liquid cavity is more and more little, the liquid medicine in the liquid cavity is carried to the human body, above can realize the infusion to the human body.

The technical effect of the scheme is as follows:

this scheme is passed through the transfer pump assembly and is carried the air in to the air cavity, makes the volume inflation grow of air cavity, and the liquid medicine propelling movement with the sap cavity is gone out indirectly, and the liquid medicine enters into the human body through the transfer line assembly. The power of the liquid medicine flowing does not depend on gravity any more, so the position of the bottle body can be more flexibly placed and can be attached to a clothes pocket, a backpack, the waist, the shoulder and the like, and the bottle body can be used without being placed above the top of the head, so that a patient can have a larger and more independent activity space in the process of transfusion. Is safer and more sanitary, and the liquid medicine is completely sealed and does not contact with the outside air in the infusion process. Simple structure, low production cost and suitability for large-area popularization in hospital clinics.

Furthermore, the isolating piece is a piston which is in sliding fit with the inner cavity of the bottle body, and in the process that the piston slides from the bottom of the bottle to the opening of the bottle, the volume of the air cavity can be increased, the volume of the liquid cavity is decreased, and liquid medicine in the liquid cavity is extruded to the infusion tube assembly.

Further, the inner chamber of bottle includes a plurality of cylinder chambeies that set up side by side, the both ends in cylinder chamber communicate with transfer pump assembly, transfer line assembly respectively, set up the cylinder chamber side by side and can divide into a plurality of cylinder chamber with the internal total volume of bottle, the whole thickness of effective control bottle, conveniently carry more. Most importantly, the piston slides more stably in the cylinder cavity, and the manufacturing process is simpler.

Furthermore, the isolating piece is an expansion air bag, a bag cavity of the expansion air bag is used as the air cavity, the space of the inner cavity of the bottle body outside the expansion air bag is used as the liquid cavity, the expansion air bag is inflated through the infusion pump assembly, the space in the bottle body, namely the space of the liquid cavity, is squeezed while the volume of the expansion air bag is increased, and the liquid medicine in the liquid cavity flows to the human body along the infusion tube assembly.

Further, the bag mouth of inflation gasbag connect in the chamber bottom edge of bottle, the chamber top inner wall of bottle is equipped with the guiding gutter, the guiding gutter certainly the liquid outlet of bottle extends to the chamber top edge of bottle, because be spherical structure behind the inflation gasbag volume grow, consequently gasbag top will be at first with the chamber top contact of bottle, and the chamber top of bottle has set up the liquid outlet, the in-process that inflation gasbag volume becomes big will plug up the liquid outlet very easily, the liquid medicine at bottle topside edge can't flow out this moment, and set up the guiding gutter here and will communicate bottle top edge and liquid outlet for the liquid medicine at bottle topside edge also can be smooth flow to the liquid outlet through the guiding gutter, and then with the cleaner discharge of the liquid medicine in the bottle.

Furthermore, a clamping groove is formed in one side, close to the air cavity, of the bottle body, a clamping hole is formed in the side wall of the clamping groove, and an inflation hole communicated with the air cavity is formed in the bottom of the clamping groove; the transfer pump assembly comprises a pump body and a shell, the pump body is arranged in the shell, the shell is provided with a connecting end, the connecting end is matched with the clamping groove, the side wall of the connecting end is provided with a buckle matched with the clamping hole, the end of the connecting end is provided with an air faucet communicated with the pump body, the air faucet is communicated with the air inflation hole in a butt joint mode, the buckle and the clamping hole are fast and firmly connected through the butt joint of the connecting end and the clamping groove of the bottle body, the air faucet is in butt joint with the air inflation hole, the transfer pump assembly is inflated into the air cavity through the air faucet, the whole process is simple and fast, the use is convenient, the transfer pump assembly is independently arranged relative to the medicine bottle assembly, the whole infusion process cannot be in contact with liquid medicine.

Further, the pump body comprises a high-flow air pump and a low-flow air pump; the high-flow air pump and the low-flow air pump are both communicated with the air nozzle; the transfer pump assembly still includes controller and battery, the controller with the battery electricity links, large-traffic air pump links extremely through first switch electricity the controller, the low discharge air pump links extremely through the second switch electricity the controller, owing to need arrange totally fast with the air of liquid intracavity at the in-process of using, need adopt large-traffic air pump this moment, and after the exhaust clearance gas, still need push the liquid medicine to the human body through the transfer pump assembly, need the low discharge air pump this moment, ordinary air pump hardly possess simultaneously between the power of above-mentioned two kinds, consequently adopt two air pumps of two power interval differences to can provide enough big flow when needing large-traffic, provide enough little and stable low discharge when needing low discharge.

Furthermore, the first switch is arranged inside the shell, a switch eyelet is arranged on the side wall of the shell corresponding to the first switch, the first switch is controlled by penetrating through the switch eyelet, the air exhaust switch can be prevented from being accidentally touched in the infusion process, and a needle-shaped object penetrates through the switch eyelet to trigger the switch when air is required to be exhausted.

Further, the second switch is a contact switch, the contact switch is arranged on the lower end face of the connection end, when the contact switch is in contact with the clamping groove, the contact switch is communicated with the circuit, and when the connection end is connected with the clamping groove, the contact switch is automatically turned on, so that the operation is more convenient, and meanwhile, the second switch can be prevented from being turned off by mistaken touch.

Furthermore, the infusion pump assembly also comprises an indicator light set for displaying the electric quantity of the storage battery, the indicator light set is positioned on the surface of the shell and is electrically connected to the controller, and the electric quantity of the storage battery can be read through the indicator light set.

Further, the infusion pump assembly further comprises a maximum drug administration knob, a pressure switch and a buzzer, the maximum drug administration knob is arranged on the end face of the connection end, and the maximum drug administration knob, the pressure switch and the buzzer are all connected to the controller. The maximum drug delivery knob is used for controlling the maximum power of the small-flow air pump so as to prevent the small-flow air pump from providing overlarge flow and damaging the health of a patient, and the maximum drug delivery speed of the infusion pump assembly cannot be exceeded even if the patient opens a speed regulator on the infusion tube assembly to the maximum. Meanwhile, the medicine is arranged on the end face of the joint end, so that patients or the like can be avoided, and the situation that the patient is unaware of excessively high adjustment of the medicine administration speed is prevented. The pressure switch is connected with the air path of the pump body, and when the pressure switch detects that the air pressure reaches a set value, the pressure switch is disconnected; and when the off time of the pressure switch reaches the set time, starting the buzzer.

The pressure of the air circuit can be detected through the pressure switch, when the air pressure is lower than a set value, the small-flow air pump circuit is connected, the small-flow air pump works, and if the air pressure is higher than the set value, the small-flow air pump circuit is disconnected. When the infusion is finished, the volume of the air cavity in the bottle body can not be enlarged, so that the pressure switch is used for disconnecting the circuit of the small-flow air pump for a long time, and the buzzer sounds to remind medical personnel after the disconnection state of the small-flow air pump reaches the set time.

Further, the infusion tube assembly comprises a tube body, a one-way valve, a filter, a puncture needle, a speed regulator and a float flowmeter, wherein the liquid inlet end of the tube body is communicated to the bottle opening of the bottle body through the one-way valve, the puncture needle and the filter are arranged at the liquid outlet end of the tube body, and the speed regulator and the float flowmeter are arranged in the middle of the tube body. The check valve can prevent blood from returning, the filter can filter larger particles to enter a human body, the speed regulator can regulate the flow rate of the liquid medicine according to actual conditions, and the float flowmeter is lifted up to directly see the administration speed according to the height of the float.

Further, the liquid inlet end of the tube body and/or the puncture needle is provided with a medicine supplementing branch pipe communicated with the outside, the pipe orifice of the medicine supplementing branch pipe is provided with a rubber sealing plug, liquid medicine is supplemented temporarily through the medicine supplementing branch pipe conveniently, and the medicine supplementing branch pipe can be automatically plugged by the rubber sealing plug.

Further, a bottle mouth is arranged at the liquid outlet end of the bottle body, a bottle plug is arranged on the inner wall of the bottle mouth, and threads are arranged on the outer wall of the bottle mouth. The infusion tube assembly is characterized in that a joint is arranged at the liquid inlet end of the tube body, an internal thread matched with the bottle opening is arranged on the inner wall of the joint, a needle penetrating through the bottle plug is further arranged in the joint, the needle penetrates through the bottle plug when in use, and then the joint is tightly screwed on the bottle opening.

Furthermore, the infusion tube assembly also comprises a bubble filter, and a filter cavity is arranged in the bubble filter; the filter cavity is partitioned into a liquid inlet channel and a liquid outlet channel by a vertical partition plate, the liquid inlet channel and the liquid outlet channel are both provided with exhaust holes, and air valves are arranged in the exhaust holes; the middle part of the separation plate is provided with a filtrate hole communicated with a liquid inlet channel and a liquid outlet channel, the filtrate hole is provided with a hydrophilic microporous filter membrane, the bottom of the liquid inlet channel is provided with a liquid inlet hole, the bottom of the liquid outlet channel is provided with a liquid outlet hole, and the liquid inlet hole and the liquid outlet hole are communicated on the pipe body; the inner wall of the lower part of the liquid outlet channel is provided with a neck closing round hole, the liquid outlet channel above the neck closing round hole is provided with a spherical floater, the spherical floater is matched and plugged with the neck closing round hole, and the liquid outlet channel below the neck closing round hole is provided with a hydrophilic microporous filter membrane.

When the scheme is used, the bubble filter is kept in a vertical state, and the spherical floater automatically floats to the top of the liquid outlet channel in the liquid outlet channel under the action of buoyancy;

the filter liquor hole is provided with a hydrophilic microporous filter membrane which can filter air to a certain extent, so that the first-level air isolation is realized;

the liquid medicine enters the liquid inlet channel from the lower part, enters the liquid outlet channel from the filtrate hole at the upper part, and then flows out of the liquid outlet channel from the lower part, if bubbles flow into the liquid inlet channel, the bubbles float to the top of the lower cavity, and the liquid medicine flows out of the liquid outlet channel downwards, so that the bubbles and the liquid medicine are separated, the liquid level in the liquid outlet channel continuously descends along with the continuous accumulation of the gas in the filter cavity, the spherical floater descends along with the liquid level, when the liquid level descends to the neck round hole, the neck round hole is blocked by the spherical floater, and no matter the gas and the liquid medicine can not pass through, thereby achieving the effect of automatically closing the channel, avoiding the gas from continuously flowing to one side of a human body, and isolating the air at a second level.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the embodiment of the present invention;

FIG. 3 is a schematic view of an infusion pump assembly according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of the single chip microcomputer according to the embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a buzzer according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a relay according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of an indicator light set according to an embodiment of the present invention;

fig. 8 is a schematic structural view of embodiment 2 of the present invention;

fig. 9 is a schematic structural view of embodiment 3 of the present invention;

fig. 10 is a schematic structural view of an inflatable air bag with a guide groove according to embodiment 3 of the present invention when the volume is just about to increase;

fig. 11 is a schematic structural view of an inflatable airbag with a guiding groove of the present invention in embodiment 3, which is just in contact with a liquid outlet;

fig. 12 is a schematic structural view of the non-guiding groove inflatable airbag of embodiment 3 of the present invention just contacting the liquid outlet;

fig. 13 is a schematic view of a bottle mouth and a joint according to embodiment 4 of the present invention;

fig. 14 is a schematic view of a bubble filter according to embodiment 5 of the present invention;

FIG. 15 is a diagram illustrating a low temperature shape of a memory metal sheet according to embodiment 6 of the present invention;

fig. 16 is a schematic view of the high temperature form of the memory metal sheet according to embodiment 6 of the present invention.

Reference numerals:

bottle body 1, tube body 2, shell 3, indicator lamp set 4, buckle 5, switch eyelet 6, one-way valve 7, drug-supplementing branch tube 8, speed regulator 9, float flowmeter 10, storage battery 11, filter 12, puncture needle 13, liquid cavity 14, piston 15, inflation hole 16, clamping groove 17, clamping hole 18, second switch 19, air cavity 20, air tap 21, maximum drug-feeding knob 22, connecting end 23, first switch 24, low-flow air pump 25, high-flow air pump 26, controller 27, bubble filter 28, liquid outlet channel 29, liquid inlet channel 30, filtrate hole 31, hydrophilic microporous filter membrane 32, spherical float 33, neck-receiving round hole 34, exhaust hole 35, air valve 36, liquid inlet hole 37, liquid outlet hole 38, box body 39, electrothermal resistance wire 40, memory metal sheet 41, press switch 42, isolation plate 43, cylindrical cavity 44, expansion air bag 45, diversion groove 46, first connection 47, rubber plug 48, rubber plug 45, and method, Second connector 49, needle 50.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1:

as shown in fig. 1 and 2, an embodiment of the present invention includes a vial assembly, an infusion pump assembly, and an infusion tube assembly.

The medicine bottle assembly comprises a bottle body 1 and a partition, wherein the partition is arranged in an inner cavity of the bottle body 1 and divides the inner cavity of the bottle body 1 into an air cavity 20 and a liquid cavity 14, when the state of the partition is changed, the volume of the liquid cavity 14 is reduced along with the increase of the volume of the air cavity 20, the partition is a piston 15, the piston 15 is in sliding fit with the inner cavity of the bottle body 1, and the piston 15 divides the inner cavity of the bottle body 1 into the air cavity 20 and the liquid cavity 14.

The air cavity 20 is communicated with the infusion pump assembly, a clamping groove 17 is arranged on one side of the bottle body 1 close to the air cavity 20, a clamping hole 18 is arranged on the side wall of the clamping groove 17, and an inflation hole 16 communicated with the air cavity 20 is arranged at the bottom of the clamping groove 17. The end cover is arranged at the tail end of the bottle body 1, the tail end of the bottle body 1 is sealed through the end cover, liquid medicine and the piston 15 are added conveniently during production, and the clamping groove 17 and the clamping hole 18 are arranged on the end cover.

The infusion pump assembly comprises a pump body, a shell 3, a controller 27, a storage battery 11, a maximum drug administration knob 22, a pressure switch, a buzzer and an indicator lamp set 4 for displaying the electric quantity of the storage battery 11.

The pump body set up in casing 3, casing 3 includes last casing and the lower casing of mutual lock, casing 3 be equipped with link end 23, this link end 23 with draw-in groove 17 adaptation, the lateral wall of link end 23 be equipped with the buckle 5 of calorie hole 18 adaptation, the tip of link end 23 be equipped with the air cock 21 of pump body intercommunication, air cock 21 with inflation hole 16 docks the intercommunication, and through the butt joint of link end 23 with the draw-in groove 17 of bottle 1, buckle 5 and calorie hole 18 are firm to be connected fast, and wherein air cock 21 docks inflation hole 16, and the transfer pump assembly is aerifyd in air cavity 20 through air cock 21, and the relative bottle 1 assembly of transfer pump assembly independently sets up, and whole infusion process can not come into contact with the liquid medicine, therefore the transfer pump assembly can used repeatedly, reduces use cost.

As shown in fig. 3, the pump body includes a large-flow air pump 26 and a small-flow air pump 25, the air outlet flow of the large-flow air pump 26 is 100 and 300ml/min, and the present embodiment adopts a pump with a flow rate of 250ml/min, and the model is: MPA 2001S; the air outlet flow of the small-flow air pump 25 is 2-16ml/min, and in the embodiment, an air pump with the model number of MPA2001S is also adopted, but the motor of the air pump is replaced by a ZWBPD006006-23 speed reduction motor so as to achieve the effect of small flow.

The high-flow air pump 26 and the low-flow air pump 25 are both communicated with the air tap 21; controller 27 with the battery 11 electricity links, large-traffic air pump 26 links extremely through first switch 24 electricity controller 27, little flow air pump 25 links extremely through second switch 19 electricity controller 27, owing to need arrange totally fast with the air in sap cavity 14 in the in-process of using, need adopt large-traffic air pump 26 this moment, and after the exhaust clear air, still need push the liquid medicine to the human body through the transfer pump assembly, need adopt little flow air pump 25 this moment, ordinary air pump hardly possess between the power of above-mentioned two kinds simultaneously, consequently adopt two different air pumps between two power intervals to can provide enough big flow when needs are large-traffic, provide enough little and stable little flow when needs the little flow.

In order to prevent the air exhaust switch from being accidentally touched in the infusion process, the first switch 24 is arranged inside the shell 3, a switch hole 6 is formed in the side wall of the shell 3 corresponding to the first switch 24, the first switch 24 is controlled by penetrating through the switch hole 6, and a needle-shaped object penetrates through the switch hole 6 to trigger the switch when air exhaust is needed.

In order to avoid the mistaken touch of closing the second switch 19, the second switch 19 is a contact switch, the contact switch is arranged on the lower end face of the connection end 23, when the contact switch is in contact with the clamping groove 17, namely the contact switch is in contact with the end cover, the contact switch is communicated with a circuit, and when the connection end 23 is connected with the clamping groove 17, the contact switch is automatically opened, so that the operation is more convenient.

The indicator light set 4 is positioned on the surface of the shell 3, the indicator light set 4 is electrically connected to the controller 27, and the electric quantity of the storage battery 11 can be read through the indicator light set 4.

The maximum drug administration knob 22 is arranged on the end face of the connection end 23, and the maximum drug administration knob 22, the pressure switch and the buzzer are all connected to the controller 27. The maximum drug delivery knob 22 is used to control the maximum power of the low-flow air pump 25 to prevent the low-flow air pump 25 from providing too much flow and harming the health of the patient, and even if the patient opens the speed regulator 9 on the infusion tube assembly to the maximum, the maximum drug delivery speed of the infusion pump assembly will not be exceeded, and the maximum drug delivery knob 22 is a potentiometer knob. While being positioned on the end face of the engagement end 23, the patient or the like can be avoided, thereby preventing an unknown patient from having to adjust the administration rate too high. The pressure switch can be realized by a mechanical pressure switch or a force-sensitive resistance circuit, the model of the mechanical pressure switch is KBQ-02C, the pressure switch is connected with the air path of the pump body, and when the pressure switch detects that the air pressure reaches a set value, the pressure switch is disconnected; and when the off time of the pressure switch reaches the set time, starting the buzzer.

The air pressure of the air circuit can be detected through the pressure switch, and when the air pressure is lower than a set value, the pressure switch is communicated with the circuit, and the low-flow air pump 25 works; when the air pressure is higher than the set value, the pressure switch disconnects the circuit. Above-mentioned pressure switch disconnection or intercommunication go on in turn repeatedly in the in-service use process, when the infusion was accomplished, because piston 15 can not down move again in bottle 1, piston 15 can't remove, and atmospheric pressure risees, pressure switch disconnection low discharge air pump 25's circuit, low discharge air pump 25 stop work, after pressure switch open circuit's time reached the settlement time, bee calling organ sounder sounded and reminded medical personnel. Through the timer integrated in the single chip microcomputer, the buzzer is controlled to sound after the pressure of the gas circuit reaches the set time after the set time is reached, the function is the conventional technology, and the detailed description is omitted.

The pump body, battery 11, buzzer, pressure switch, pilot lamp group 4 all connect to controller 27, and the model of controller 27 is STM32F103C8T 6. The circuit details are shown in figures 4-7. The small-flow air pump end is connected with the relay in parallel, when the pressure switch is closed, the relay is closed, when the pressure switch is opened, the relay is opened, and the change of the pressure switch contact is synchronously reflected by using the dynamic contact of the relay. The size of the detection board is 40 × 20, the MCU adopts a commercially-used STM32F103C8T6, one end of the relay is grounded, one end of the relay is connected with an IO port of the singlechip, and the IO port is configured into a pull-up mode. The program inside can start a 1 ms's timer, and during normal work, the relay actuation, the contact is closed, and the IO mouth is the low level, and at this moment, the timer current value can be constantly clear 0, and when pressure switch disconnection, the power failure of low flow air pump, the relay disconnection, the IO mouth is the high level, and the timer current value can not be emptied, when the accumulative value reachd 2 minutes, drives the buzzer and reports to the police. When the normal work is recovered, the relay is closed, the contact is closed, the IO port is at a low level, the current value of the timer is cleared by 0, and the buzzer cannot give an alarm. The circuit connection is conventional in the art, and therefore is not described in detail in this embodiment.

The liquid cavity 14 is communicated with the liquid conveying pipe assembly, the liquid conveying pipe assembly comprises a pipe body 2, a one-way valve 7, a filter 12, a puncture needle 13, a speed regulator 9 and a float flowmeter 10, a liquid inlet end of the pipe body 2 is communicated to a bottle opening 47 of the bottle body 1 through the one-way valve 7, the puncture needle 13 and the filter 12 are arranged at a liquid outlet end of the pipe body 2, and the speed regulator 9 and the float flowmeter 10 are arranged in the middle of the pipe body 2. The one-way valve 7 can prevent blood from returning, the filter 12 can filter larger particles to enter a human body, the speed regulator 9 can regulate the flow rate of the liquid medicine according to actual conditions, the float flowmeter 10 can directly see the administration speed according to the height of the float when the float flowmeter 10 is lifted. The check valve 7, the filter 12, the governor 9 and the float flow meter 10 are conventional in the art and will not be described herein.

The liquid inlet end of body 2 and pjncture needle 13 is equipped with the outside benefit medicine branch pipe 8 of intercommunication, the mouth of pipe of benefit medicine branch pipe 8 is equipped with the rubber sealing plug, is convenient for supply the liquid medicine temporarily through benefit medicine branch pipe 8, and the rubber sealing plug can block up benefit medicine branch pipe 8 automatically.

According to the scheme, air is conveyed into the air cavity 20 through the infusion pump assembly, so that the piston 15 in the bottle body 1 is pushed to move, and the piston 15 pushes liquid medicine to enter a human body through the infusion tube assembly. The power of the liquid medicine flowing does not depend on gravity any more, so the position of the bottle body 1 can be more flexibly placed and can be attached to a clothes pocket, a backpack, the waist, the shoulder and the like, and the bottle body 1 can also be used without being placed above the top of the head, so that a patient can have a larger and more independent activity space in the process of transfusion. Is safer and more sanitary, and the liquid medicine is completely sealed and does not contact with the outside air in the infusion process. Simple structure, low production cost and suitability for large-area popularization in hospital clinics.

In the scheme, the liquid medicine of the bottle body 1 is preassembled by a manufacturer, the piston 15 is moved to enable the volume of the liquid cavity 14 to be changed to the maximum, namely the piston 15 moves to the uppermost position in the drawing, so that the liquid medicine is fully distributed in the liquid cavity 14 (certain air can be reserved in the liquid cavity in actual production), the air cavity 20 is inflated through the infusion pump assembly when the infusion bottle is used, the air cavity 20 is expanded, the piston 15 moves to one side of the liquid cavity 14, the air in the liquid cavity 14 is firstly discharged, the puncture needle 13 is inserted into a human body, the liquid medicine is pushed out of the liquid cavity 14, and the liquid medicine enters the human body through the pipe.

Has the following advantages:

1. the infusion bottle is small in size and easy to carry, and can be put into a pocket, a handbag, bound on arms or clamped on a belt at any angle.

2. The maximum safe administration speed is provided, the nurse sets the maximum administration speed, and even if the patient drives the speed regulator 9 on the infusion tube assembly to the maximum, the maximum administration speed set by the nurse is not exceeded, and the patient is effectively prevented from being unaware of the overhigh adjustment of the administration speed. After the liquid medicine is completely infused, the infusion pump assembly stops air supply, and buzzes for prompting so that the patient can find out in time. More sanitary and safer, and the liquid medicine is completely sealed and does not contact with the outside air in the infusion process.

3. The adjustable flow range is larger, the potentiometer knob for drug administration is used through the maximum knob, so that the current amount of the small-flow air pump is adjusted, the maximum speed of drug administration is allowed to be set, and in emergency, the drug can be rapidly administered without an infusion pressurization bag.

4. The infusion pump assembly is connected only by connecting the infusion tube assembly and buckling the infusion pump assembly on a liquid bottle, and the administration speed can be directly seen through the scale marks on the flowmeter on the infusion tube assembly.

5. The whole structure is simple, the cost is low, the production is easy, the realization is easy, the service life is long, the power part is only composed of the storage battery 11, the pump body and the like, and the infusion pump assembly can be repeatedly used because the infusion pump assembly is not contacted with the liquid medicine.

The method comprises the following steps:

1. the tubing assembly is attached to the port 47.

2. The fastest speed allowed for infusion is adjusted, and an infusion pump assembly is installed.

3. The bottle opening 47 is turned upward, the air-release switch is pressed to release air, and the liquid medicine is spread over the tube.

4. The speed regulator 9 on the infusion tube assembly is closed.

5. The patient is venipuncture.

6. Opening the speed regulator 9 on the infusion tube assembly, lifting the float flowmeter 10, observing the float flowmeter 10, and adjusting the administration speed.

7. After the infusion is finished, the speed regulator 9 on the infusion tube assembly is closed, the needle is pulled out, the infusion pump assembly is taken down, and the medicine bottle assembly and the infusion tube assembly are abandoned into the garbage can.

Note: if a plurality of bottles of liquid medicine need to be infused once, the operations of exhausting air and changing the medicine in all liquid cavities are needed additionally.

Operation of degassing all the liquid chambers: exhausting all the liquid cavities according to the steps 1-3 (the last liquid medicine bottle is not required to be fully distributed in the tube body, the first liquid medicine bottle for transfusion of a patient is exhausted finally, the last liquid medicine bottle is exhausted, the transfusion tube assembly is not required to be taken down, and then the step 4 is carried out).

Dressing change operation: when changing the medicine, the speed regulator 9 is closed, then the infusion tube assembly is connected to the next bottle of medicine bottle assembly, then the infusion pump assembly is buckled on the next bottle of medicine bottle assembly, and then the 6 th step of operation is carried out, so that the medicine changing operation is completed.

Example 2:

as shown in fig. 8, compared with embodiment 1, the inner cavity of the bottle body is modified, and embodiment 2 is different in that the inner cavity of the bottle body 1 includes a plurality of cylindrical cavities 44 arranged side by side, and both ends of the cylindrical cavities 44 are respectively communicated with an infusion pump assembly and an infusion tube assembly. I.e. the two ends of the cylinder chamber 44 are respectively communicated with the gas filling hole 16 and the liquid outlet. Adopt this kind of mode can be made thin with the thickness of bottle 1, more conveniently carry, can also divide into a plurality of little pistons 15 with the piston, the piston slides more stably.

Example 3:

as shown in fig. 9 to 12, compared to embodiment 1, the partition of embodiment 2 employs an inflatable balloon 45, the cavity of the inflatable balloon 45 being the air chamber, and the space of the inner cavity of the bottle body outside the inflatable balloon 45 being the liquid chamber. The middle of the expansion air bag 45 is thick, so that the expansion air bag 45 can be prevented from being expanded out of the inner cavity of the bottle body from the air inlet hole or the liquid outlet.

Because the volume of the inflatable airbag 45 is increased and then the inflatable airbag 45 is in a spherical structure, the top of the inflatable airbag 45 firstly contacts with the top of the cavity of the bottle body 1, the top of the cavity of the bottle body 1 is provided with a liquid outlet, the liquid outlet is easily blocked in the process that the volume of the inflatable airbag 45 is increased, and the liquid medicine on the top edge of the bottle cannot flow out, so that the bag opening of the inflatable airbag 45 is connected to the bottom edge of the cavity of the bottle body 1, the inner wall of the top of the cavity of the bottle body 1 is provided with a diversion trench 46, and the diversion trench 46 extends from the liquid outlet to the top edge of the cavity of the. For solving the above technical problem, the flow guide groove 46 is not limited to be arranged on the top of the inner cavity of the bottle body 1, a plurality of groups of convex ribs can be arranged on the outer wall of the expansion air bag 45, two groups of convex ribs are arranged side by side, two convex ribs form a channel for the liquid medicine to flow to the liquid outlet, the channel needs to be arranged corresponding to the top of the inner cavity of the bottle body 1, and the flow direction from the top of the inner cavity of the bottle body 1 to the liquid outlet is arranged. In addition, the top edge of the cavity of the bottle body 1 can be set to be a curved surface or a structure with gradually reduced inner aperture, so that the liquid outlet cannot be blocked in the process of increasing the volume of the expansion air bag 45, the liquid medicine in the bottle body 1 is discharged more cleanly, and the waste of the liquid medicine is avoided.

Example 4:

as shown in fig. 13, compared with embodiment 1, the present embodiment also has the following technical features: the liquid outlet end of the bottle body 1 is provided with a bottle mouth 47, the inner wall of the bottle mouth 47 is provided with a bottle stopper 48, and the outer wall of the bottle mouth 47 is provided with screw threads. The liquid inlet end of the infusion tube assembly is provided with a connector 49, the inner wall of the connector 49 is provided with an internal thread matched with the bottle opening 47, a needle 50 penetrating through the bottle stopper 48 is further arranged in the connector 49, the connector 49 is communicated with the tube body through the one-way valve 7, meanwhile, the connector 49 is provided with the medicine supplementing branch tube 8, when in use, the needle 50 penetrates through the bottle stopper 48, and then the connector 49 is screwed on the bottle opening 47.

Example 5:

as shown in fig. 14, in addition to embodiment 1, the infusion tube assembly of this embodiment further includes a bubble filter 28, the bubble filter 28 is kept in a vertical state when in use, a filter chamber is provided in the bubble filter 28, and the liquid medicine is separated from the gas in the filter chamber.

The filter cavity is divided into a liquid inlet channel 30 and a liquid outlet channel 29 by a vertical partition plate 43, the liquid inlet channel 30 and the liquid outlet channel 29 are both provided with exhaust holes 35, and air valves 36 are arranged in the exhaust holes 35.

The middle part of the said spacer plate 43 has filtrate holes 31 communicating inlet channel 30 and outlet channel 29, the liquid medicine enters the inlet channel 30 from below, enter the outlet channel 29 from the filtrate hole 31 above, then flow out of the outlet channel 29 from below, the said filtrate hole 31 has hydrophilic microfiltration membrane 32, wherein the filtrate hole 31 has hydrophilic microfiltration membrane 32, the hydrophilic microfiltration membrane 32 can carry on certain filtration to the air, play the first level of air isolation, the hydrophilic microfiltration membrane 32 is a porous membrane filter material, the pore diameter distributes the more homogeneous permeable micropore, the microporosity is up to the absolute pore diameter of 80 ‰;

a liquid inlet hole 37 is formed in the bottom of the liquid inlet channel 30, a liquid outlet hole 38 is formed in the bottom of the liquid outlet channel 29, and the liquid inlet hole 37 and the liquid outlet hole 38 are communicated with the pipe body; a neck-collecting round hole is formed in the inner wall of the lower portion of the liquid outlet channel 29, a spherical floater 33 is arranged on the liquid outlet channel 29 above the neck-collecting round hole 34, the spherical floater 33 is plugged with the neck-collecting round hole 34 in a matched mode, the spherical floater 33 automatically floats to the top of the liquid outlet channel 29 under the buoyancy effect in the liquid outlet channel 29, and a hydrophilic microporous filter membrane 32 is arranged on the liquid outlet channel 29 below the neck-collecting round hole 34.

If bubbles flow into the liquid inlet channel 30, the bubbles float to the top of the lower cavity, the liquid medicine flows downwards from the liquid outlet channel 29, and then the bubbles and the liquid medicine are separated, along with continuous accumulation of gas in the filter cavity, the liquid level in the liquid outlet channel 29 continuously descends, the spherical float 33 descends along with the liquid level, when the liquid level descends to the neck round hole 34, the neck round hole 34 is blocked by the spherical float 33, no matter the gas and the liquid medicine can not pass through, so that the effect of automatically closing the channel is achieved, the gas is prevented from continuously flowing to one side of a human body, and the air is isolated at a second level.

Example 6:

as shown in fig. 15 and 16, in addition to embodiment 2, the present embodiment further includes a heating device, the heating device includes a box body 39, the box body 39 is provided with a heating groove that is inserted into the pipe body, an electric heating resistance wire 40 is arranged outside the heating groove, one side of the heating groove is provided with a memory metal sheet 41, the memory metal sheet 41 includes a free end and a fixed end connected to the heating groove, the high-temperature form of the memory metal sheet 41 is a V-shaped structure, the arched portion of the V-shaped structure abuts against the pipe body, and the low-temperature form of the memory metal sheet 41 is a straight strip.

When the temperature is high, the memory metal sheet 41 is in a V-shaped structure at the low temperature, and the arched part is abutted against the tube body, so that the tube body is squeezed to be flat by the memory metal sheet 41 at the normal temperature, the tube body is isolated, and the liquid medicine is prevented from flowing to the human body after being heated at the excessive temperature; when the liquid medicine flows through the pipe body at the position of the memory metal sheet 41, the flowing liquid takes away part of the heat of the memory metal sheet 41, so that the temperature of the memory metal sheet 41 is reduced, the memory metal sheet 41 is kept in a straight strip shape, the pipe body is prevented from being squeezed and blocked, and when the pipe body is not heated, the shape of the memory metal sheet 41 is in the straight strip shape due to the low temperature, and the pipe body is kept smooth.

When the liquid medicine heating device is used, the pipe body is firstly arranged in the heating groove, so that the liquid medicine in the pipe body flows, the memory metal sheet 41 does not have too high temperature due to the flowing of the liquid medicine, the memory metal sheet always keeps a straight strip shape, and the liquid medicine can also flow smoothly. Then gradually heating, the memory metal sheet 41 will not flatten the tube body.

In order to avoid the phenomenon that the temperature is excessively increased due to misoperation, the memory metal sheet 41 completely crushes the tube body, the other side of the heating groove is provided with a press switch 42 for controlling the electric resistance wire 40, the press switch 42 is arranged corresponding to the arched part of the memory metal sheet 41, when the temperature is excessively high and the memory metal sheet 41 arches to crush the tube body, the extrusion force is transmitted to the press switch 42, and the press switch 42 closes the electric resistance wire 40 under the pressure, so that the purpose of controlling the heating temperature of the electric resistance wire 40 is achieved.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. An electric portable infusion device is characterized by comprising a medicine bottle assembly, an infusion pump assembly and an infusion tube assembly;

the medicine bottle assembly comprises a bottle body (1) and a partition, the partition is arranged in an inner cavity of the bottle body (1), the partition divides the inner cavity of the bottle body (1) into an air cavity (20) and a liquid cavity (14), and when the state of the partition is changed, along with the increase of the volume of the air cavity (20), the volume of the liquid cavity (14) is reduced;

the air cavity (20) is communicated with the infusion pump assembly, and the liquid cavity (14) is communicated with the infusion tube assembly.

2. An electrically powered portable infusion device according to claim 1, wherein the barrier is a piston (15) which is a sliding fit in the interior cavity of the body (1).

3. The electric portable infusion device as claimed in claim 2, wherein the inner cavity of the bottle body (1) comprises a plurality of cylinder cavities (44) arranged side by side, and both ends of the cylinder cavities (44) are respectively communicated with the infusion pump assembly and the infusion tube assembly.

4. The electric portable infusion device according to claim 1, wherein the partition is an inflatable balloon (45), a cavity of the inflatable balloon (45) serves as the air chamber (20), and a space of an inner cavity of the bottle body (1) outside the inflatable balloon (45) serves as the liquid chamber (14).

5. The electric portable infusion device as claimed in claim 4, wherein the mouth of the inflatable air bag (45) is connected to the bottom edge of the cavity of the bottle body (1), and the inner wall of the top of the cavity of the bottle body (1) is provided with a guiding groove (46), and the guiding groove (46) extends from the liquid outlet of the bottle body (1) to the top edge of the cavity of the bottle body (1).

6. The electric portable infusion device according to any one of claims 1 to 5, wherein a clamping groove (17) is formed at one side of the bottle body (1) close to the air chamber (20), a clamping hole (18) is formed at the side wall of the clamping groove (17), and an air inflation hole (16) communicated with the air chamber (20) is formed at the bottom of the clamping groove (17);

the transfer pump assembly includes the pump body and casing (3), the pump body set up in casing (3), casing (3) are equipped with link end (23), should link end (23) with draw-in groove (17) adaptation, the lateral wall of link end (23) be equipped with buckle (5) of card hole (18) adaptation, the tip of link end (23) be equipped with air cock (21) of pump body intercommunication, air cock (21) with inflation hole (16) butt joint intercommunication.

7. The powered portable infusion device according to claim 6, wherein the pump body comprises a high flow air pump (26) and a low flow air pump (25); the high-flow air pump (26) and the low-flow air pump (25) are both communicated with the air tap (21);

the transfer pump assembly still includes controller (27) and battery (11), controller (27) with battery (11) electricity is even, large-traffic air pump (26) are through first switch (24) electricity extremely controller (27), little flow air pump (25) are through second switch (19) electricity extremely controller (27).

8. The powered portable infusion device according to claim 7, wherein the first switch (24) is arranged inside the housing (3), a switch hole (6) is arranged on the side wall of the housing (3) corresponding to the first switch (24), and the first switch (24) is controlled through the switch hole (6);

the second switch (19) is a contact switch which is arranged on the lower end face of the connection end (23), when the contact switch is in contact with the clamping groove (17), the contact switch is communicated with a circuit, the infusion pump assembly further comprises an indicator lamp set (4) for displaying the electric quantity of the storage battery (11), the indicator lamp set (4) is positioned on the surface of the shell (3), and the indicator lamp set (4) is electrically connected to the controller (27);

the infusion pump assembly further comprises a maximum drug administration knob (22), a pressure switch and a buzzer, the maximum drug administration knob (22) is arranged on the end face of the connection end (23), and the maximum drug administration knob (22), the pressure switch and the buzzer are all connected to the controller (27);

the pressure switch is connected with the air path of the pump body, and when the pressure switch detects that the air pressure reaches a set value, the pressure switch is disconnected; and when the off time of the pressure switch reaches the set time, starting the buzzer.

9. The electric portable infusion device as claimed in claim 1, wherein the infusion tube assembly comprises a tube body (2), a one-way valve (7), a filter (12), a puncture needle (13), a speed regulator (9) and a float flowmeter (10), a liquid inlet end of the tube body (2) is communicated to a bottle opening (47) of the medicine bottle assembly through the one-way valve (7), the puncture needle (13) and the filter (12) are arranged at a liquid outlet end of the tube body (2), the speed regulator (9) and the float flowmeter (10) are arranged in the middle of the tube body (2), a medicine supplementing branch tube (8) communicated with the outside is arranged at the liquid inlet end of the tube body (2) and/or the puncture needle (13), and a rubber sealing plug is arranged at the medicine supplementing branch tube (8).

10. The device of claim 1, wherein the infusion line assembly further comprises a bubble filter (28), wherein a filter chamber is provided in the bubble filter (28);

the filter cavity is divided into a liquid inlet channel (30) and a liquid outlet channel (29) by a vertical partition plate (43), the liquid inlet channel (30) and the liquid outlet channel (29) are both provided with exhaust holes (35), and an air valve (36) is arranged in each exhaust hole (35);

the middle part of the isolation plate (43) is provided with a filtrate hole (31) communicated with a liquid inlet channel (30) and a liquid outlet channel (29), the filtrate hole (31) is provided with a hydrophilic microporous filter membrane (32), the bottom of the liquid inlet channel (30) is provided with a liquid inlet hole (37), the bottom of the liquid outlet channel (29) is provided with a liquid outlet hole (38), and the liquid inlet hole (37) and the liquid outlet hole (38) are communicated with the pipe body;

a neck-closing round hole (34) is formed in the inner wall of the lower portion of the liquid outlet channel (29), a spherical floater (33) is arranged on the liquid outlet channel (29) above the neck-closing round hole (34), the spherical floater (33) is in adaptive plugging with the neck-closing round hole (34), and a hydrophilic microporous filter membrane (32) is arranged on the liquid outlet channel (29) below the neck-closing round hole (34).