CN215134815U - A pressurized infusion set - Google Patents

Abstract

The utility model belongs to the technical field of medical instrument, specifically disclose a pressurization transfusion system, including infusion unit and pressurization unit, the infusion unit includes infusion container and transfer line, and the intercommunication has the intake pipe on the transfer line, and the pressurization unit includes the air supply and by the pressurization gasbag and the pressurization trachea of air supply air feed, on the infusion container was established to pressurization gasbag cover, pressurization trachea tip through can dismantle the articulate fast in the transfer line intake pipe. The infusion is carried out under the action of gravity, peristaltic extrusion is not needed, the molecular structure of the liquid medicine is not affected, the infusion speed does not need to be too high in most of time, additional driving force is not needed, energy consumption loss does not exist, and therefore large power supply energy is not needed.

Description

Pressure transfusion system

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a pressurization transfusion system.

Background

Infusion, also known as drip infusion or drip infusion, is a large dose of injection infused into the body by intravenous drip. Are usually packaged in glass or plastic infusion bottles or bags and contain no preservatives or bacteriostatic agents. When in use, the infusion apparatus is used for adjusting the dropping speed to continuously and stably enter the vein so as to supplement body fluid, electrolyte, medicines or provide nutrient substances, and becomes one of the most common and most direct and effective clinical treatment means.

At present, the disposable infusion apparatus is generally applied clinically, and when a patient needs to quickly and greatly supplement blood volume or add, the disposable infusion apparatus cannot meet clinical requirements, needs a specially-assigned person to continuously extrude a Murphy's dropper, wastes time and labor, and increases labor cost. Therefore, some medical staff now use a pressurized precision infusion device for infusion in clinical practice.

The precision transfusion device widely used in the world at present is as follows: 1. the infusion pump has the working principle that liquid is injected through the work of the peristaltic pump, and the infusion amount is controlled by adjusting the speed of the pump; specifically, the number of drops is compared with the pump speed, and various alarm instructions are sent out through comparison. 2. The disposable precise infusion apparatus has the working principle that the size of the micro injection aperture is adjusted by a mechanical knob, and the set infusion speed is achieved by the rotation indication of the mechanical knob. 3. The pressurizing transfusion device is used mostly by pressurizing the injection medicine bottle through an external device.

The above-described precision infusion device also has the following problems:

1. peristaltic extrusion in the use of the infusion pump can damage part of macromolecular substances, has certain influence on the treatment effect, is inconvenient to place in a ward due to the large volume of the infusion pump, needs a power supply to be used online and has large volume, and the living activities of patients are limited.

2. The working principle of the disposable precise infusion apparatus determines that the infusion precision is influenced by the injection part of a patient, the body position of the patient, the type of medicine and the like, and the injection precision has larger error. In addition, the injection hole diameter is small, no pressurizing device is arranged, and the injection cannot be completed when high-speed infusion is needed.

3. The working principle of the pressurized infusion device determines that the device is supplied by an external power supply, the energy requirement on the power supply is relatively high, and the requirement on a main machine of the device is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressurization transfusion system reaches the effect of infusing fast or guaranteeing the infusion flow through outside pressor mode.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a pressurization transfusion system, includes infusion unit and pressurization unit, and the infusion unit includes infusion container and transfer line, and the intercommunication has the intake pipe on the transfer line, and the pressurization unit includes the air supply and by pressurization gasbag and the pressurization trachea of air supply, on the infusion container was established to pressurization gasbag cover, pressurization trachea tip can be dismantled and connect in the intake pipe.

The principle of the scheme is as follows: when the requirement on the infusion speed is low, the gravity action of the liquid is used as the infusion power, and no additional power is needed, as in the common infusion apparatus. When the transfusion speed reaches a certain set value or the transfusion loop is slightly unsmooth, the air source can be driven to supply air to the pressurizing air bag or directly supply air to the transfusion container through the pressurizing air pipe, the air source supply route is selected according to the manual presetting of the transfusion container such as a plastic bag, a plastic bottle, a glass bottle and the like during transfusion, when the transfusion container is made of soft materials such as the plastic bag and the like, the pressurizing air bag is independently supplied with air, the plastic bag and the glass bottle can be simultaneously supplied with air, and when the transfusion container is made of hard materials such as the glass bottle and the like, the pressurizing air pipe is independently supplied with air. After the pressurizing air bag is selected for supplying air, the pressurizing air bag can extrude the transfusion container to increase the pressure of the liquid medicine so as to achieve the effect of quick transfusion or ensuring the transfusion flow; after the pressurized air pipe is selected for air supply, air can be filled into the top end of the infusion container, so that the purpose of improving the air pressure in the infusion container is achieved, and the flow of liquid medicine is further accelerated.

The infusion is carried out under the action of gravity, peristaltic extrusion is not needed, the molecular structure of the liquid medicine is not affected, the infusion speed does not need to be too high in most of time, additional driving force is not needed, energy consumption loss does not exist, and therefore large power supply energy is not needed.

Drawings

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

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Reference numerals in the drawings of the specification include: the infusion device comprises an infusion container 1, a pressurizing air bag 2, an infusion tube 3, anair inlet tube 4, apressurizing air tube 5, anair delivery tube 6, aconnecting tube 7, anair pump 8, aprocessor 9, apressure sensor 10, aflow sensor 11, apositioning block 12, anotch 13, an adjustinghead 14, asliding sleeve 15, ascrew rod 16, amotor 17 and aquick connector 18.

Detailed Description

Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. The term "sequentially comprising A, B, C, etc" merely indicates the order of the included elements A, B, C, etc. and does not exclude the possibility of including other elements between a and B and/or between B and C. The description of "first" and its variants is merely for the purpose of distinguishing between the parts and does not limit the scope of the invention, which can be written as "second" and so on without departing from the scope of the invention.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to fig. 1 to 2.

The embodiment provides a pressurization transfusion system, including infusion unit and pressurization unit, the infusion unit includes infusion container 1 and transfer line 3, and the intercommunication hasintake pipe 4 on the transfer line 3, and the pressurization unit includes the air supply and by pressurization gasbag 2 and thepressurization trachea 5 of air supply air feed, 2 covers of pressurization gasbag establish infusion container 1 on, 5 tip detachable connections inintake pipe 4 of pressurization trachea.

The infusion container 1 is used for containing liquid medicine, is mainly a plastic bag, a plastic bottle or a glass bottle and the like, and is the same as an existing common infusion bag or infusion bottle. The infusion tube 3 is a disposable infusion tube 3 commonly used in the prior art, one end of the infusion tube 3 extends into the infusion container 1, the other end of the infusion tube is provided with a needle head, one side of the infusion tube 3, which is close to the infusion container 1, is communicated with anair inlet tube 4, the end part of theair inlet tube 4 is detachably connected with a tube plug, theair inlet tube 4 is communicated with a standard air inlet of the infusion tube, and air enters the top end of the infusion container 1 directly. The structures of the infusion container 1, the infusion tube 3, theair inlet tube 4 and the like are all common structures in the prior art, and are not described in detail in this embodiment.

Referring to fig. 1, the pressurizing unit specifically includes a pressurizing air bag 2, an air source and a pressurizingair pipe 5, the air source is asmall air pump 8 in this embodiment, the air outlet end of theair pump 8 is connected with anair pipe 6, the end part of theair pipe 6 is connected with a three-way joint, the air inlet end of the pressurizing air bag 2 is connected with a connectingpipe 7, the air inlet ends of the connectingpipe 7 and the pressurizingair pipe 5 are communicated with theair pipe 6 through the three-way joint, and the pressurizingair pipe 5 and the connectingpipe 7 are both provided with a switch valve. When in use, the air output by theair pump 8 is discharged to the pressurizing air bag 2 and the pressurizingair pipe 5 through theair conveying pipe 6.

Wherein, pressurization gasbag 2 cover is on infusion container 1, specifically, the whole banded structure that is of pressurization gasbag 2, during the use with pressurization gasbag 2 twine on infusion container 1 can, for the convenience fix pressurization gasbag 2 on infusion container 1, still be equipped with fixed knot structure on pressurization gasbag 2, fixed knot structure can be for making up magic subsides or snap etc. at pressurization gasbag 2 both ends.

5 end connection of pressurization trachea has quick-operation joint 18, and quick-operation joint 18 and 4 adaptations of intake pipe need be forintake pipe 4 gas transmission time, directly be connectedintake pipe 4 tip and quick-operation joint 18, makepressurization trachea 5 andintake pipe 4 intercommunication, and the gas ofair pump 8 output can be derived to in theintake pipe 4.

Based on the basic structure, when the infusion set is used and the requirement on the infusion speed is low, the gravity action of the liquid is used as the infusion power, and no additional power is needed, as in the common infusion set.

When the infusion speed reaches a certain set value or the infusion loop is slightly unsmooth, the air source can be driven to supply air to the pressurizing air bag 2 and/or the pressurizingair pipe 5, the air source supply route is selected according to the manual presetting that the infusion container 1 is a plastic bag, a plastic bottle or the like or a glass bottle or the like during infusion, for example, when the infusion container 1 is made of soft materials such as a plastic bag or the like, the air can be independently supplied to the pressurizing air bag 2 or the pressurizingair pipe 5, or both the air and the pressurizing air pipe can be supplied at the same time; when the infusion container 1 is made of a rigid material such as a plastic bottle or a glass bottle, the on-off valve of theconnection pipe 7 is closed to supply air to the pressurizedair pipe 5 alone.

After the pressurizing air bag 2 supplies air, the pressurizing air bag 2 can expand to extrude the transfusion container 1, and the pressure of the liquid medicine is increased to achieve the effect of quick transfusion or transfusion flow guarantee; after the pressurizedair pipe 5 is selected for supplying air, the air can be filled into the top end of the infusion container 1, so that the purpose of increasing the internal air pressure of the infusion container 1 is achieved, and the flow of the liquid medicine is accelerated.

The infusion is carried out under the action of gravity, peristaltic extrusion is not needed, the molecular structure of the liquid medicine is not affected, the infusion speed does not need to be too high in most of time, additional driving force is not needed, energy consumption loss does not exist, and therefore large power supply energy is not needed.

Referring to fig. 2, in some embodiments, the infusion set further comprises a flow rate adjusting unit, the flow rate adjusting unit comprises an adjustinghead 14, apositioning block 12 and a driving mechanism, thepositioning block 12 is located on the infusion tube 3, a portion of the infusion tube 3 located at thepositioning block 12 is opposite to the adjustinghead 14, and the driving mechanism can drive the adjustinghead 14 to be close to or far away from the infusion tube 3. The end part of the adjustinghead 14 close to the infusion tube 3 is hemispherical, and in the using process, when the flow rate needs to be reduced, the adjustinghead 14 is driven by the driving mechanism to be close to the infusion tube 3 and extrude the infusion tube 3, so that the purpose of reducing the flow rate is achieved; on the contrary, when the flow rate needs to be increased, the adjustinghead 14 is driven to be away from the infusion tube 3, so as to achieve the purpose of increasing the flow rate.

Referring to fig. 2, in some embodiments, thepositioning block 12 is a square block, thepositioning block 12 is provided with a positioning hole, the infusion tube 3 passes through the positioning hole, one side of thepositioning block 12 close to the adjustinghead 14 is provided with anotch 13 communicated with the positioning hole, thenotch 13 is opposite to the adjustinghead 14 and can accommodate the adjustinghead 14, the infusion tube 3 is partially exposed in thenotch 13, thepositioning block 12 is fixed on the infusion support, and when the infusion tube 3 is used, the adjustinghead 14 extends into thenotch 13 to extrude the infusion tube 3.

In some embodiments, the driving mechanism includes amotor 17, asliding sleeve 15 and ascrew 16 driven by themotor 17, thesliding sleeve 15 is fixedly connected with thepositioning block 12, the adjustinghead 14 is slidably fitted in thesliding sleeve 15, and a screw hole matched with thescrew 16 is formed in the adjustinghead 14. Wherein, a support frame (not shown in the figure) is fixedly arranged on the infusion support, themotor 17 is arranged on the support frame, themotor 17 is a micro motor, thescrew rod 16 is coaxially connected with an output shaft of themotor 17, a screw hole matched with thescrew rod 16 is arranged in the adjustinghead 14, thescrew rod 16 is in threaded fit in the screw hole, and the screw thread between thescrew rod 16 and the screw hole is not self-locked. The end of thesliding sleeve 15 is fixed on thepositioning block 12 by means of screws or bonding, etc., a sliding hole is arranged in thesliding sleeve 15, the sliding hole is opposite to thenotch 13 on thepositioning block 12, and the adjustinghead 14 is in sliding fit in the sliding hole. And in order to avoid the rotation of the adjustinghead 14, the vertical sections of the adjustinghead 14 and the sliding hole are square.

When the infusion tube is used, the startingmotor 17 drives thescrew rod 16 to rotate, and thescrew rod 16 is in threaded fit with the adjustinghead 14, and the adjustinghead 14 is in sliding fit with the sliding hole, so that thescrew rod 16 can drive the adjustinghead 14 to linearly move in the sliding hole when rotating, namely, the adjustinghead 14 is driven to extrude or be far away from the infusion tube 3.

In some embodiments, the infusion tube 3 is further provided with aflow sensor 11 for detecting the flow rate of the infusion tube 3, so as to control the infusion amount of the patient.

In some embodiments, the side of the pressurizing bladder 2 that contacts the infusion container 1 is provided with apressure sensor 10 for detecting the pressure applied by the pressurizing bladder 2 to the infusion container 1 to avoid applying too little or too much pressure.

In some embodiments, the infusion apparatus further comprises a control unit, the control unit comprises aprocessor 9, theprocessor 9 is a common CPU, a single chip microcomputer or a PLC controller, and themotor 17, theflow sensor 11, thepressure sensor 10 and theair pump 8 are all electrically connected with theprocessor 9. In the using process, according to the comparison between the set input transfusion flow value and the actual value detected by theflow sensor 11, a pulse signal is output to control themicro motor 17 to drive thescrew rod 16 to move, and the transfusion speed is adjusted by controlling the adjustinghead 14 to extrude the transfusion tube 3. When the transfusion speed reaches a certain set value or the transfusion loop is slightly unsmooth, theprocessor 9 outputs another pulse to control the inflatingpump 8 to output certain pressure gas to drive the pressurizing air bag 2 or the pressurizingair pipe 5 to accelerate the flow of the liquid medicine. Thereby achieving the function of rapid transfusion or ensuring the transfusion flow.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (8)

1. A pressurized infusion set, characterized in that: the infusion device comprises an infusion unit and a pressurizing unit, wherein the infusion unit comprises an infusion container (1) and an infusion tube (3), the infusion tube (3) is communicated with an air inlet tube (4), the pressurizing unit comprises an air source, a pressurizing air bag (2) and a pressurizing air tube (5), the air supply of the air source supplies air, the pressurizing air bag (2) is sleeved on the infusion container (1), and the end part of the pressurizing air tube (5) is detachably connected to the air inlet tube (4).

2. A pressurized infusion set according to claim 1, wherein: a pressure sensor (10) is arranged on one side of the pressurizing air bag (2) which is contacted with the transfusion container (1).

3. A pressurized infusion set according to claim 2, wherein: the infusion tube is characterized by further comprising a flow adjusting unit, the flow adjusting unit comprises an adjusting head (14), a positioning block (12) and a driving mechanism, the positioning block (12) is located on the infusion tube (3), the part, located at the positioning block (12), of the infusion tube (3) is opposite to the adjusting head (14), and the driving mechanism can drive the adjusting head (14) to be close to or far away from the infusion tube (3).

4. A pressurized infusion set according to claim 3, wherein: the positioning block (12) is provided with a positioning hole, the infusion tube (3) passes through the positioning hole, one side of the positioning block (12) close to the adjusting head (14) is provided with a notch (13) communicated with the positioning hole, and the notch (13) is opposite to the adjusting head (14) and can accommodate the adjusting head (14).

5. A pressurised infusion set according to claim 3 or 4, characterised in that: the driving mechanism comprises a motor (17), a sliding sleeve (15) and a screw rod (16) driven by the motor (17), the sliding sleeve (15) is fixedly connected with the positioning block (12), the adjusting head (14) is in sliding fit with the sliding sleeve (15), and a screw hole matched with the screw rod (16) is formed in the adjusting head (14).

6. A pressurized infusion set according to claim 5, wherein: the transfusion tube (3) is also provided with a flow sensor (11).

7. A pressurized infusion set according to claim 6, wherein: the device also comprises a control unit, wherein the control unit comprises a processor (9), and the motor (17) and the flow sensor (11) are electrically connected with the processor (9).

8. A pressurized infusion set according to claim 7, wherein: the air source is an air pump (8), and the pressure sensor (10) and the air pump (8) are electrically connected with the processor (9).

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