阅读说明：本技术 静脉注入用过滤器的滤板叠层结构 (Filter plate laminated structure of filter for intravenous injection ) 是由 姜大元 于 2020-10-15 设计创作，主要内容包括：本发明涉及一种静脉注入用过滤器的滤板叠层结构,其用过滤器形态的支撑体支撑具有过滤功能的过滤体,即使在高压下也能防止过滤体的损坏,其特征在于,包括：上侧过滤器外壳,其形成有用于注入药物的药物注入口；下侧过滤器外壳,其连接到上侧过滤器外壳的下部,形成有用于排出药物的药物排出口；过滤体,其设置在上流侧,执行过滤功能,通过上侧过滤器外壳和下侧过滤器外壳内部的药物注入口注入的药物在上流侧流动；以及支撑体,其设置于过滤体下部的用于排出药物的下流侧,可支撑过滤体。(The present invention relates to a filter plate lamination structure of a filter for intravenous injection, which supports a filter body having a filtering function by a support body in a filter form and prevents the filter body from being damaged even under high pressure, the structure comprising: an upper side filter housing formed with a medicine injection port for injecting a medicine; a lower filter housing connected to a lower portion of the upper filter housing and formed with a medicine discharge port for discharging medicine; a filter body disposed at an upstream side, performing a filtering function, and allowing a drug injected through drug injection ports inside the upper and lower filter housings to flow at the upstream side; and a support body which is provided on a downstream side of the lower part of the filter body for discharging the drug and which supports the filter body.)

1. A filter plate laminate structure of an intravenous infusion filter, comprising:

an upper side filter housing formed with a medicine injection port for injecting a medicine;

a lower filter housing connected to a lower portion of the upper filter housing and formed with a medicine discharge port for discharging medicine;

a filter body disposed at an upstream side, performing a filtering function, and allowing a drug injected through drug injection ports inside the upper and lower filter housings to flow at the upstream side; and

and a support body which is arranged at the downstream side of the lower part of the filter body for discharging the medicine and can support the filter body.

2. The filter sheet laminate structure of an intravenous filter according to claim 1,

the filter body is closely attached to the upper part of the support body with the upper filter housing for injecting the drug as a reference, and is formed of a membrane filter having a strong filtering function.

3. The filter sheet laminate structure of an intravenous filter according to claim 1,

the support body is formed of a mesh filter woven in a mesh manner or a sintered filter made in a sintered manner by high-temperature and high-pressure compression, and functions as a support for supporting the filter body so as to prevent the filter body from being damaged by the medicine injected at high speed and high pressure.

4. The filter sheet laminate structure of an intravenous filter according to claim 1,

the support body is closely attached to the lower part of the filter body with the upper filter housing for injecting the drug as a reference, and supports the filter body.

5. The filter sheet laminate structure of an intravenous filter according to claim 1,

the lower portion of the lower filter housing is connected to a check valve housing provided with a check valve.

Technical Field

The present invention relates to a filter plate lamination structure of an intravenous infusion filter, and more particularly, to a filter plate lamination structure of an intravenous infusion filter, which supports a filter body having a filtering function with a filter-shaped support body and prevents the filter body from being damaged even under high pressure.

Background

Generally, when a medicine is injected into a body for a therapeutic purpose in a hospital, the medicine is injected into a vein or subcutaneous fat, but a syringe is mainly used for injecting the medicine into the subcutaneous fat, and an infusion line is mainly used for injecting the medicine into the vein at a constant rate.

In this case, a filter is used to remove foreign substances that may be mixed into the drug, and a membrane filter is mainly used.

However, in the case of using only a membrane filter by injecting a contrast medium for illuminating a blood vessel into a vein at a rate of at most 3 to 5ml/sec for CT imaging or MRI imaging, if the pressure is accumulated in the filter or exceeds the damage limit point of the filter, the filter is damaged, and the original function of the filter is lost.

In addition, the viscosity of the angiographic contrast medium is high, and therefore, the pressure of the angiographic contrast medium is more rapidly increased than that of normal physiological saline or distilled water.

In order to inject such an angiographic contrast medium into a vein, a contrast medium Injector (Media Injector) is used, and therefore, there is a problem in that a membrane filter is easily damaged due to a high pressure of the contrast medium Injector, and when filter powder of about 5 μm or more is generated, the damaged filter powder closes a blood vessel, so that a risk of medical accidents is high.

Conventionally, in order to prevent damage to a membrane filter, a mesh filter is provided on an inlet side of a filter housing for injecting a drug, and a membrane filter is provided on a discharge port side.

Since such a conventional filter structure has no holder for supporting the membrane filter, there is a problem that the membrane filter is damaged, as in the case of a filter having a single structure.

Disclosure of Invention

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a filter plate laminate structure of an intravenous infusion filter, which includes a membrane filter having a filtering function on an inlet side of a filter housing for infusing a drug, and a support body formed of a mesh-like or sintered filter having a function of supporting the membrane filter on an outlet side of the filter housing for discharging the drug, i.e., on a lower portion of the membrane filter, thereby maximizing a filtering efficiency, preventing the membrane filter from being damaged by a high pressure, and maximizing efficiency and firmness of a product.

In order to achieve the above object, a filter sheet stack structure of an iv filter according to an embodiment of the present invention may include: an upper side filter housing formed with a medicine injection port for injecting a medicine; a lower filter housing connected to a lower portion of the upper filter housing and formed with a medicine discharge port for discharging medicine; a filter body disposed at an upstream side, performing a filtering function, and allowing a drug injected through drug injection ports inside the upper and lower filter housings to flow at the upstream side; and a support body provided on a downstream side of the lower portion of the filter body for discharging the medicine, so as to support the filter body.

The filter body is closely attached to the upper part of the support body with reference to the upper filter housing for injecting the drug, and may be formed of a membrane filter having a strong filtering function.

The support body is formed of a mesh filter woven in a mesh manner or a sintered filter compressed at high temperature and high pressure and manufactured in a sintered manner, and functions as a support for supporting the filter body so as to prevent the filter body from being damaged by the medicine injected at high speed and high pressure.

The support body is closely attached to the lower part of the filter body with the upper filter housing for injecting the drug as a reference, and can support the filter body.

The lower portion of the lower filter housing may be connected with a check valve housing provided with a check valve.

As described above, according to the filter plate lamination structure of the filter for intravenous infusion of the present invention, the filter body is provided at the upstream side, the filter body is formed of the membrane filter having the filtering function, the medicine injected through the medicine injection port into the inside of the upper side filter housing and the lower side filter housing flows at the upstream side, the support body is closely attached to the downstream side for discharging the medicine, that is, the lower part of the filter body, the support body is formed in the form of the mesh filter or the sintered filter, the filtering efficiency is maximized by the filter body and the support body, and the support body supports and supports the filter body of the membrane filter at the lower side, the damage of the filter body can be prevented even under the high-speed high-pressure of the injected medicine, so that the product property and the user's reliability can be maximized.

Drawings

Fig. 1 is an exploded perspective view showing a filter sheet laminate structure of an intravenous infusion filter according to the present invention.

Fig. 2 is a perspective view showing a filter sheet laminate structure of the filter for intravenous infusion according to the present invention.

Fig. 3 is a sectional view showing a state before bonding of the internal constitution of the filter sheet laminate structure of the filter for intravenous infusion according to the present invention.

Fig. 4 is a sectional view showing a bonding state of an internal constitution of a filter sheet lamination structure of the filter for intravenous infusion according to the present invention.

Description of the reference symbols

100: upper filter housing 110: medicine injection port

120: the coupling groove 200: lower filter shell

210: the drug discharge port 220: inserting piece

300: the filter body 400: support body

500: check valve housing 510: check valve

Detailed Description

While the invention is susceptible to various modifications and alternative embodiments, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. However, the present invention is not limited to the specific embodiments, and all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention are to be understood.

The drawings are not intended to limit the embodiments of the present invention to the particular forms shown, but are exaggerated for clarity. Although specific terms are used in the description, they are used only for describing the present invention, and are not used for limiting the meaning or the scope of the right of the present invention described in the patent claims.

In the present specification, the expression "and/or" is used as meaning including at least one of the constituent elements listed in the front and back. The expression "connected to" means that the element is directly connected to or indirectly connected to another element through another element. In this specification, the singular also includes the plural unless specifically mentioned in a sentence. In addition, the constituent elements, steps, actions, and elements referred to as "including" or "including … …" used in the specification mean the presence or addition of one or more other constituent elements, steps, actions, and elements.

In the description of the embodiments, the description that each layer (film), region, pattern, or structure is formed on "upper surface (on)" or "lower surface (under)" of the substrate, each side (film), region, pad, or pattern includes the case where the layer (film), region, pad, or pattern is formed directly (d i rect ly) or is formed with another layer interposed therebetween. The upper/upper or lower/lower reference of each layer will be described with reference to the drawings.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Fig. 1 is an exploded perspective view showing a filter plate lamination structure of an intravenous infusion filter according to the present invention, fig. 2 is a perspective view showing a filter plate lamination structure of an intravenous infusion filter according to the present invention, fig. 3 is a sectional view showing an internal configuration of a filter plate lamination structure of an intravenous infusion filter according to the present invention before bonding, and fig. 4 is a sectional view showing a bonding state of an internal configuration of a filter plate lamination structure of an intravenous infusion filter according to the present invention.

As shown in fig. 1 to 4, the filter plate laminate structure of the iv filter according to the present invention includes an upper filter housing 100, a lower filter housing 200, a filter body 300, a support body 400, and a check valve housing 500.

The upper filter housing 100 has a drug injection port 110 formed vertically therethrough for injecting a drug.

In addition, a coupling groove 120 may be formed inside the lower portion of the upper filter housing 100 to be connectable to the lower filter housing 200.

The lower filter housing 200 is connected to a lower portion of the upper filter housing 100, and is formed with a medicine discharge port 210 so that the medicine injected into the medicine injection port 110 can be discharged after passing through the upper filter housing 100.

In addition, a tab 220 may be provided at an upper portion of the lower filter housing 200 so that the upper filter housing 100 and the lower filter housing 200 can be connected by inserting the tab 220 into the coupling groove 120.

Also, when the tab 220 is inserted into the coupling groove 120, it is welded in the coupling groove 120, thereby enabling the upper filter housing 100 and the lower filter housing 200 to be firmly fixed.

The filter body 300 is disposed inside the upper and lower filter housings 100 and 200 and on the upstream side, performs a filtering function, and the medicine injected through the medicine injection port 110 flows on the upstream side.

The filter 300 may be closely attached to the upper portion of the support 400 described below with reference to the upper filter housing 100 into which the drug is injected into the drug injection port 110.

In addition, the filter body 300 may be formed of a membrane filter so that the filtration efficiency of the drug may be improved.

In other words, by providing the filter body 300 as a membrane filter, foreign substances mixed into the medicine can be removed to the maximum extent.

As shown in fig. 4, the filter body 300 may be coupled in a form of being embedded in the lower inside of the upper filter housing 100.

The support body 400 is disposed between the upper filter housing 100 and the lower filter housing 200, is disposed at a downstream side of the medicine discharge port 210 for discharging the medicine at the lower portion of the filter body 300, and functions as a supporter for supporting the filter body 300.

The support body 400 may be formed of a mesh filter woven by a mesh manner or a sintered filter made by a sintering manner compressed at high temperature and high pressure.

The mesh filter is made by weaving and mixed with metal wires to form a mesh (mesh).

The sintered filter can be made by pressing with high pressure with beads attached.

In addition, the support 400 supports the filter 300 so as to prevent the filter 300 from being damaged by the medicine injected into the medicine injection port 110 at a high speed and a high pressure by supporting the filter 300.

In other words, the supporter 400 is closely attached to the lower portion of the filter 300 with reference to the upper filter housing 100 into which the drug is injected into the drug injection port 110, and supports the filter 300, thereby serving as a supporter for supporting the filter 300 in a manner of preventing the filter 300, which is a membrane filter, from being damaged, and thus the damage critical point of the membrane filter is raised to the damage critical point of the mesh filter or the sintered filter, thereby preventing the filter 300 from being damaged.

The check valve housing 500 is combined at the lower portion of the lower filter housing 200 and includes a check valve 510 therein to prevent reverse flow of the medicine.

In addition, the check valve housing 500 may be welded while being combined with the lower portion of the lower filter housing 200.

When the check valve housing 500 is coupled with the lower filter housing 200, the check valve 510 is disposed between the check valve housing 500 and the lower filter housing 200, and prevents the reverse flow of the medicine passing through the upper filter housing 100 and flowing to the lower filter housing 200 through the filter body 300 and the support body 400.

The operating state of the filter sheet laminate structure of the intravenous filter according to the present invention formed by the above-described structure was observed as follows.

The lower portion of the upper filter housing 100 having the drug injection port 110 formed therein is coupled to the lower filter housing 200 having the drug discharge port 210 formed therein, the upper filter housing 100 and the lower filter housing 200 include a filter body 300, which is a membrane filter, based on the upper filter housing 100 into which the drug is injected into the drug injection port 110, and a support 400 of a mesh filter or a sintered filter is closely attached to the lower portion of the filter body 300.

As described above, the filter 300 having a filtering function is provided in the upstream direction of the flow of the drug with reference to the upper filter housing 100, and the filter 300, i.e., the membrane filter, can remove foreign substances mixed in the drug.

Further, a support 400 is provided at a lower portion of the filter 300 in a downstream direction for discharging the medicine with reference to the upper filter housing 100, and the support 400, i.e., the mesh filter or the sintered filter, supports and supports the membrane filter, i.e., the filter 300, at the lower surface, thereby preventing the filter 300 from being damaged.

In addition, inside the upper and lower filter housings 100 and 200, the filter for filtration is composed of the filter body 300 and the support body 400 and is stacked in two layers, so that the filtration efficiency can be maximized.

Meanwhile, the check valve housing 500 having the check valve 510 mounted thereto is provided at the lower portion of the lower filter housing 200, so that it is not necessary to separately mount a check valve on the transfusion line, thereby saving costs.

As described above, the present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by those having ordinary knowledge in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of the claims.