Infusion exhaust device

Abstract

The infusion exhaust device comprises a drip chamber, one end of the drip chamber is communicated with a lower infusion pipeline, the other end of the drip chamber is provided with a drip chamber cover in a sealed mode, the drip chamber cover is communicated with an upper infusion pipeline and a one-way exhaust assembly, and an air suction bag is detachably arranged at the tail end of the one-way exhaust assembly. Compared with an infusion apparatus in the prior art, the air suction bag in the infusion exhaust device can suck air in the drip chamber through the one-way exhaust assembly, the pressure intensity in the drip chamber is reduced, the air dissolution rate of liquid medicine in the drip chamber is reduced, gas-liquid mixtures are avoided, and bubbles are avoided; the needle head of the intravenous infusion needle is prevented from being excessively exposed in the air, and liquid medicine is not wasted. The problems that an infusion apparatus is prone to being polluted and liquid medicine is prone to being wasted during exhausting are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an infusion exhaust device. Background Art

[0002] Infusion is a widely used treatment method in clinical treatment. The infusion set is an indispensable medical device for infusion. The basic structure of the infusion set includes a bottle stopper puncture, an upper infusion line, a drip bucket, a lower infusion line, a flow regulator, an infusion needle connector, and an intravenous infusion needle. When the infusion set is in use, the bottle stopper puncture is inserted into the infusion bottle, and the liquid in the bottle flows along the upper infusion line to the drip bucket, from the drip bucket to the lower infusion line, and enters the patient's body through the intravenous infusion needle. When the liquid medicine begins to enter the drip bucket, the air in the drip bucket dissolves in the liquid medicine, and it is very easy to form a mixture of gas and liquid. The gas-liquid mixture will quickly enter the lower infusion line. Under the combined effects of vibration, temperature and pressure, bubbles escape from the gas-liquid mixture, posing a threat to the patient's health. Utility Model Content

[0003] Therefore, the utility model provides a liquid infusion exhaust device to solve the above problems in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] According to the first aspect of the utility model, an infusion exhaust device comprises a drip bucket, one end of which is connected to a lower infusion pipeline and the other end is closed by a drip bucket cover, the drip bucket cover is connected to an upper infusion pipeline and a one-way exhaust component, and the end of the one-way exhaust component is detachably provided with an air suction bag; the one-way exhaust component comprises an inner channel arranged on the drip bucket cover, one end of the inner channel is connected to the inner cavity of the drip bucket, and the other end is connected to a cavity, an air baffle plate is movably arranged in the cavity, a through hole is formed on the air baffle plate, and the inner channel is not connected to the through hole; the air baffle plate is capable of closing the inner channel on a side close to the inner channel, and is separated from the bottom surface of the cavity on a side away from the inner channel, the cavity is connected to an outer channel on a side away from the inner channel, a suction bag is detachably provided on the end of the outer channel, and the outer channel is not connected to the through hole.

[0006] Furthermore, the longitudinal section of the cavity is stepped, and the bottom surface structure of the air baffle plate is smaller than the bottom surface structure of the cavity close to the inner channel, and larger than the bottom surface structure of the cavity close to the outer channel.

[0007] Furthermore, a pressure regulating passage is provided on the drip bucket cover, one end of the pressure regulating passage is connected to the inner cavity of the drip bucket, and the other end is detachably provided with a pressure regulating cover.

[0008] Furthermore, an air filter component is connected to the lower infusion pipeline, and a terminal end of the air filter component is separated from the drip bucket cover.

[0009] Furthermore, the air filter assembly includes an air filter pipeline connected to the lower infusion pipeline, an air filter plate is sleeved on the air filter pipeline, air filter holes are opened on the air filter plate, an air filter cover is circumferentially arranged on the air filter plate, the end of the air filter cover is closed and separated from the end of the air filter pipeline.

[0010] Furthermore, a pipeline cover is provided at the end of the air filter pipeline, and a pipeline hole is opened on the pipeline cover.

[0011] Furthermore, the pipeline cover is an arched structure.

[0012] The utility model has the following advantages:

[0013] Since the solubility of air in water is related to temperature and pressure, inversely proportional to temperature and directly proportional to pressure, under the condition of constant temperature, reducing pressure is an effective operation to reduce the air dissolution rate in water. The utility model provides an infusion exhaust device, in which the suction bag in the device can suck out the air in the drip bucket through a one-way exhaust component, reduce the pressure in the drip bucket, reduce the air dissolution rate of the medicine in the drip bucket, avoid the generation of gas-liquid mixture, avoid the generation of bubbles; avoid the needle of the intravenous infusion needle from being exposed to the air too much, and do not waste the medicine. The problem that the infusion set is easily contaminated and the medicine is easily wasted when exhausting is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0016] Figure 1 A schematic diagram of the structure of a liquid infusion exhaust device provided in an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the longitudinal section structure of a one-way exhaust assembly in a liquid infusion exhaust device provided by an embodiment of the utility model in a state of use;

[0018] Figure 3 A schematic diagram of the longitudinal cross-sectional structure of a one-way exhaust assembly in a liquid infusion exhaust device provided by an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of a preferred structure of a liquid infusion exhaust device provided in an embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the structure of an air filter assembly in a liquid infusion exhaust device provided in an embodiment of the utility model.

[0021] In the figure:

[0022] 1-drip bucket, 2-upper infusion pipeline, 3-lower infusion pipeline, 4-one-way exhaust assembly, 5-inhalation bag, 6-air filter assembly, 101-drip bucket cover, 102-pressure regulating passage, 121-pressure regulating cover, 401-inner channel, 402-cavity, 403-air baffle plate, 404-outer channel, 431-through hole, 601-air filter pipeline, 602-air filter plate, 603-air filter cover, 611-pipeline cover, 612-pipeline hole, 621-air filter hole. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] Figure 1 A schematic diagram of the structure of a liquid infusion exhaust device provided by an embodiment of the utility model is shown as follows: Figure 1 As shown, it includes a drip bucket 1, one end of which is connected to a lower infusion pipeline 3, and the other end is closed with a drip bucket cover 101, the drip bucket cover 101 is connected to an upper infusion pipeline 2 and a one-way exhaust component 4, and the end of the one-way exhaust component 4 is detachably provided with a suction bag 5.

[0026] Since the solubility of air in water is related to temperature and pressure, inversely proportional to temperature and directly proportional to pressure, under the condition of constant temperature, reducing pressure is an effective operation to reduce the air dissolution rate in water. The utility model provides an infusion exhaust device, in which the suction bag in the device can suck out the air in the drip bucket through a one-way exhaust component, reduce the pressure in the drip bucket, reduce the air dissolution rate of the medicine in the drip bucket, avoid the generation of gas-liquid mixture, avoid the generation of bubbles; avoid the needle of the intravenous infusion needle from being exposed to the air too much, and do not waste the medicine. The problem that the infusion set is easily contaminated and the medicine is easily wasted when exhausting is solved.

[0027] Example 2

[0028] like Figure 2 and Figure 3 As shown, it includes all the contents of Example 1. In addition, as a preferred embodiment of the utility model, the one-way exhaust component 4 includes an inner channel 401 arranged on the drip bucket cover 101, one end of the inner channel 401 is connected to the inner cavity of the drip bucket 1, and the other end is connected to a cavity 402, and an air baffle plate 403 is movably provided in the cavity 402, and a through hole 431 is provided on the air baffle plate 403, and the inner channel 401 is not connected to the through hole 431; the side of the air baffle plate 403 close to the inner channel 401 can close the inner channel 401, and the side away from the inner channel 401 is separated from the bottom surface of the cavity 402, and the side of the cavity 402 away from the inner channel 401 is connected to an outer channel 404, and an air suction bag 5 is detachably provided at the end of the outer channel 404, and the outer channel 404 is not connected to the through hole 431.

[0029] The design of this structure allows the gas to be discharged from the drip bucket 1 in one direction and will not enter the drip bucket 1. When the drug solution enters the lower infusion pipeline 3 through the drip bucket 1, the drip bucket 1 forms a closed space, and the suction bag 5 is squeezed and inserted into the outer channel 404. The air in the outer channel 404 is sucked into the suction bag 5, and the pressure in the outer channel is reduced. The air baffle 403 moves away from the inner channel 401 under the action of the pressure difference, and the air in the drip bucket 1 is sucked into the suction bag 5 through the inner channel 401, the through hole 431, and the outer channel 404. The pressure in the drip bucket 1 is reduced ( Figure 2 When the bubbles in the drip bucket 1 are eliminated, the suction bag 5 is removed. Since the pressure in the drip bucket 1 is lower than the pressure in the outer channel 404, that is, the atmospheric pressure, the air barrier 403 is close to and closes the inner channel 401 under the action of the pressure difference, and the air cannot enter the inner cavity of the drip bucket 1 ( Figure 3 The gas is discharged from the drip bucket 1 in one direction, thereby reducing the pressure in the drip bucket 1 and avoiding the generation of a gas-liquid mixture.

[0030] Example 3

[0031] like Figure 2 and Figure 3As shown, it includes all the contents of Example 2. In addition, as a preferred embodiment of the present invention, the longitudinal section of the cavity 402 is stepped, and the bottom surface structure of the air baffle 403 is smaller than the bottom surface structure of the cavity 402 near the inner channel 401, and larger than the bottom surface structure of the cavity 402 near the outer channel 404. The design of this structure enables the air baffle 403 to switch the closed or open state of the inner channel 401 according to the pressure difference between the inside and outside of the drip bucket 1, and not to contact the outer channel 404.

[0032] Example 4

[0033] like Figure 1 As shown, it includes all the contents of Example 3. In addition, as a preferred embodiment of the present invention, a pressure regulating passage 102 is connected to the drip bucket cover 101, one end of the pressure regulating passage 102 is connected to the inner cavity of the drip bucket 1, and the other end is detachably provided with a pressure regulating cover 121. The design of this structure can timely adjust the pressure in the drip bucket 1 during the infusion process to avoid the pressure being too low to stop the infusion of the drug solution into the patient's body.

[0034] Example 5

[0035] like Figure 4 and Figure 5 As shown, it includes all the contents of Example 4. In addition, as a preferred embodiment of the present utility model, a gas filter component 6 is connected and arranged on the lower infusion pipeline 3, and the end of the gas filter component 6 is separated from the drip bucket cover 101. The design of this structure allows the liquid medicine to flow into the lower infusion pipeline 3 after rising to the end of the gas filter component 6 in the drip bucket 1, and the bubbles generated are filtered or broken by the gas filter component 6, further reducing the gas entering the lower infusion pipeline 3.

[0036] The air filter assembly 6 includes an air filter pipeline 601 connected to the lower infusion pipeline 3, an air filter plate 602 is sleeved on the air filter pipeline 601, and an air filter hole 621 is opened on the air filter plate 602. An air filter cover 603 is circumferentially arranged on the air filter plate 602, and the end of the air filter cover 603 is sealed and separated from the end of the air filter pipeline 601. The design of this structure allows the liquid surface to pass through the air filter hole 621 on the air filter plate 602, and the bubbles on the liquid surface are filtered or broken by the air filter hole 621, further reducing the gas from entering the lower infusion pipeline 3.

[0037] Example 6

[0038] like Figure 5 As shown, it includes all the contents of Example 5. In addition, as a preferred embodiment of the utility model, a pipeline cover 611 is provided at the end of the gas filter pipeline 601, and a pipeline hole 612 is opened on the pipeline cover 611. The design of this structure allows the liquid surface to pass through the pipeline hole 612 of the pipeline cover 611, and the bubbles on the liquid surface are filtered or broken by the pipeline hole 612, further reducing the gas from entering the lower infusion pipeline 3.

[0039] Example 7

[0040] like Figure 4 and Figure 5 As shown, it includes all the contents of Example 6. In addition, as a preferred embodiment of the utility model, the pipeline cover 611 is an arched structure. The surface tension of the bubbles on the liquid surface induces dynamic buckling instability to form surface wrinkling, which in turn drives the bubbles to collapse and rupture, that is, the irregular shape of the liquid surface promotes the rupture of the bubbles. The design of this structure makes the bubbles affected and ruptured when the liquid surface passes through the pipeline cover 611, further reducing the gas entering the lower infusion pipeline 3.

[0041] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

[0042] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A liquid infusion exhaust device, characterized in that: It includes a drip bucket, a lower infusion pipeline, a drip bucket cover, an upper infusion pipeline, a one-way exhaust assembly and an air suction bag; one end of the drip bucket is connected with the lower infusion pipeline, and the other end is closed with the drip bucket cover, the upper infusion pipeline and the one-way exhaust assembly are connected with the drip bucket cover, and the end of the one-way exhaust assembly is detachably provided with the air suction bag; The one-way exhaust component includes an inner channel arranged on the drip bucket cover, one end of the inner channel is connected to the inner cavity of the drip bucket, and the other end is connected to a cavity, an air baffle is movably arranged in the cavity, a through hole is opened on the air baffle, the inner channel is not connected to the through hole, the air baffle is able to close the inner channel on a side close to the inner channel, and is separated from the bottom surface of the cavity on a side away from the inner channel, the cavity is connected to an outer channel on a side away from the inner channel, the air suction bag is detachably arranged on the end of the outer channel, and the outer channel is not connected to the through hole.

2. A liquid infusion exhaust device according to claim 1, characterized in that: The longitudinal section of the cavity is stepped, and the bottom surface structure of the air baffle plate is smaller than the bottom surface structure of the cavity near the inner channel, and larger than the bottom surface structure of the cavity near the outer channel.

3. The infusion exhaust device according to claim 1, characterized in that: The drip bucket cover is connected with a pressure regulating passage, one end of the pressure regulating passage is connected with the inner cavity of the drip bucket, and the other end is detachably provided with a pressure regulating cover.

4. The liquid infusion exhaust device according to claim 1, characterized in that: The lower infusion pipeline is connected with an air filter component, and the end of the air filter component is separated from the drip bucket cover.

5. The infusion exhaust device according to claim 4, characterized in that: The air filter assembly includes an air filter pipeline connected to the lower infusion pipeline, an air filter plate is sleeved on the air filter pipeline, air filter holes are opened on the air filter plate, an air filter cover is circumferentially arranged on the air filter plate, and the end of the air filter cover is closed and separated from the end of the air filter pipeline.

6. The liquid infusion exhaust device according to claim 5, characterized in that: A pipeline cover is arranged at the end of the air filter pipeline, and a pipeline hole is opened on the pipeline cover.

7. The liquid infusion exhaust device according to claim 6, characterized in that: The pipeline cover is an arched structure.

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