CN106237443B

CN106237443B - Filter equipment reaches filtration infusion container including it

Info

Publication number: CN106237443B
Application number: CN201510970808.7A
Authority: CN
Inventors: 陈陆陆
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2022-11-11
Anticipated expiration: 2035-12-22
Also published as: CN106237443A

Abstract

The invention discloses a filtering device and a filtering transfusion container comprising the same, wherein the filtering device comprises a shell, a filtering membrane is arranged in the shell, a liquid channel leading to the filtering membrane is arranged in the shell, the filtering device also comprises a through valve used for opening or closing the liquid channel, the through valve is rotationally connected with the shell, the through valve comprises a rotating handle arranged outside the shell and a valve core arranged in the shell, the valve core is provided with a valve channel, the shell is provided with an air inlet opposite to the through valve, and the air inlet is communicated with the valve channel. The particles can be filtered by the filter membrane, and the filtering is finished when the infusion is discharged out of an infusion bottle or an infusion bag. Can directly avoid the occurrence of insoluble particles in the production and manufacturing links due to large transfusion, directly reduces the burden of patients by controlling at the initial stage of use, and additionally expands the transfusion sale prospect.

Description

Filter device and filter infusion container comprising same

Technical Field

The invention relates to a filtering device and a filtering infusion container comprising the same.

Background

Clinical infusion is an important clinical discipline in modern medicine. It includes water and electrolyte balance disorders, acid-base balance disorders, and nutritional factors, which are associated with a variety of pathological processes. Through reasonable transfusion, corresponding medicines can be directly injected into veins according to different disease conditions while regulating the balance disorder, so as to achieve the purpose of quickly and efficiently relieving and treating the diseases.

With the increasing medical needs and pharmaceutical technology, therapeutic infusion varieties are also gradually brought into clinic. Therefore, the infusion is paid attention and applied by clinicians at all levels, the dosage of infusion preparations is rapidly increased, and the average dosage of people in China reaches more than 3 bottles at present. In order to meet the medical requirements, the large infusion manufacturing industry receives high attention from the pharmaceutical industry for improving the product quality and the safe medication and improving the packaging level of preparations while increasing the yield. The recently emerged production line for packaging large infusion by hard plastic bottles and non-PVC soft plastic bags brings a new trend for the industrial production of large infusion, and the clinical application is safer and more reliable. But new problems also arise. The development of the transfusion package and the review of the soft bag package technology are repeated for discussion.

Since the liquid medicine directly enters the blood and can be distributed to the whole body instantly (< 1 minute), the intravenous transfusion is an important basic treatment means in the domestic clinical treatment. The data provided by the drug-induced disease science professional committee of the chinese pharmacological society show that: over 70% of hospitalized patients in China have undergone intravenous infusion therapy.

The current infusion mode is carrier infusion, and the clinical carrier infusion is more than 90 percent; the carrier infusion leads to the superposition of heat source and insoluble particles, thus easily increasing the infusion safety risk. The excessive insoluble particles and the increase of endotoxin are one of the main causes of adverse reactions in transfusion. The insoluble particles enter the capillaries of the human body to block, and various diseases caused by the blockage are greatly damaged.

The insoluble particles may be mixed in all links from production to clinic, such as the drug production link with stricter quality control, packaging materials, operation links, supporting instruments, environment introduction and the like.

The Chinese pharmacopoeia defines insoluble particles of 10 μm or more and 25 μm or more, but does not relate to particles of 2 to 10 μm. Once the insoluble particles with the particle size of 2-10 mu m enter the human body, the discharge time is even more than 20 years.

At present, in many domestic children hospitals and hospitals, a precision transfusion filter is extremely beautiful, the main function of the product is to filter out impurities such as insoluble particles with the particle size of more than 2 microns in transfusion, visible foreign matters and the like, but the product has higher selling price and brings burden to patients. And the existing transfusion filters are all arranged on the transfusion tube, so that the structure on the transfusion tube is complex and the production is not facilitated.

Therefore, the control standard of insoluble particles in infusion products should be improved in the production and manufacturing links, and therefore, the company researches a novel filtering device which can be matched with infusion containers such as large infusion bottles, soft bag bottles and the like and can also be directly connected to infusion bottle/bag interfaces in the manufacturing ring.

Disclosure of Invention

The invention aims to overcome the defects that in the prior art, infusion equipment is easy to input particles into a human body, the filtering cost is high, the structure of an infusion tube is complex, and production is not facilitated, and provides a filtering device and a filtering infusion container comprising the same.

The invention solves the technical problems through the following technical scheme:

a filter device, comprising a housing, a filter membrane disposed in the housing for communicating with a fluid passage of an infusion container, the fluid passage further communicating with the filter membrane, and a valve for opening or closing the fluid passage, the valve being rotatably connected to the housing, the valve comprising a rotary handle disposed outside the housing, and a valve core disposed in the housing, the valve core having a valve passage, the housing having an inlet opening opposite to the valve passage, the inlet opening communicating with the valve passage, wherein when the valve passage and the fluid passage communicate, fluid can pass from the fluid passage through the valve passage and then to the filter membrane, and when the valve passage and the fluid passage do not communicate, fluid is blocked from reaching the filter membrane; the filter device comprises a protrusion, the air inlet is arranged in the protrusion, and the through valve is rotationally connected with the protrusion

The particles can be filtered by the filter membrane, and the filtration is finished when the infusion is discharged out of an infusion bottle or an infusion bag. In addition, when the infusion bottle or the infusion bag is transported or vibrated, the filtering membrane is easily influenced by liquid impact, so that the liquid channel is isolated by the through valve, and the filtering membrane is prevented from contacting the infusion before the infusion. The valve is rotatably coupled to the housing. The swivel connection is more convenient for the user to open or close the fluid passage. Moreover, the air inlet is communicated with the valve channel, so that additional openings can be reduced, and the structure of the filtering device is more compact and simplified. And the protruding part is used for providing the air inlet and simultaneously serving as a rotating shaft of the through valve to provide supporting force, so that the structure is more reasonable and compact.

When the valve is used, the rotating handle is held to rotate, the valve core is driven by the rotating handle to rotate together, and when the valve channel is communicated with the liquid channel, liquid can pass through the valve channel from the liquid channel and further reach the filtering membrane.

Preferably, an air film is connected to the air inlet. When in use, air enters the shell through the air film, and liquid cannot overflow.

Preferably, the central axis of the valve is perpendicular to the central axis of the housing. By reasonably arranging the relative positions, the structure can be more compact.

Preferably, an air inlet plug for plugging the air inlet is connected to the housing.

Preferably, the housing includes an upper cover and a lower cover connected together, the through valve being connected to the lower cover. The air inlet can be arranged at any position of the lower cover of the shell.

Preferably, the upper cover and the lower cover are connected through threads. Through threaded connection back, the equipment of upper cover and lower cover is more convenient, saves the assemble duration.

Preferably, a supporting seat is arranged in the upper cover, and the filtering membrane is clamped between the supporting seat and the lower cover. The supporting seat can support the filtering membrane and prevent the filtering membrane from being crushed by infusion.

Preferably, the filter device further comprises a rubber body connected to one end of the housing. The rubber body is used for inserting the puncture outfit to realize the communication between the filtering device and the puncture outfit.

Preferably, an inner sleeve is arranged in the upper cover, and the inner sleeve is clamped between the supporting seat and the rubber body.

Preferably, a cavity is arranged in the inner sleeve, one end of the cavity is communicated with the filtering membrane, and the other end of the cavity is communicated with the rubber body.

Preferably, the housing is provided with threads. The filtering device can be connected to an infusion bag or an infusion bottle through threads, and can also be directly formed on the infusion bottle or the infusion bag.

A filtering infusion container is characterized by comprising the filtering device, and further comprising an infusion container, wherein the filtering device is connected to the infusion container, one end of the liquid channel is communicated with the infusion container, and the other end of the liquid channel is communicated with the filtering membrane.

The infusion filtering container can filter tiny particles through the combination of the infusion container and the filtering device. Meanwhile, because the filter device is provided with the air inlet, an air inlet opening is not required to be additionally arranged on the infusion container, so that the structure of the infusion container is simplified.

In the present invention, the above-mentioned preferred conditions can be arbitrarily combined on the basis of the common knowledge in the field, and the preferred embodiments of the present invention can be obtained.

The positive progress effects of the invention are as follows: the particles can be filtered by the filter membrane, and the filtering is finished when the infusion is discharged out of an infusion bottle or an infusion bag. Can directly avoid the occurrence of insoluble particles in the production and manufacturing links due to large transfusion, directly reduces the burden of patients by controlling at the initial stage of use, and additionally expands the transfusion sale prospect. Meanwhile, the filtering device avoids the damage of the filtering membrane caused by impact in the transportation process of the infusion bottle or the infusion bag or before use. The filtering infusion container fully utilizes the air inlet of the filtering device, simplifies infusion containers such as infusion bottles or infusion bags, has compact integral structure and is beneficial to production and use.

Drawings

Fig. 1 is a schematic front view of a filter device connected to an infusion bag according to embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of a filter device connected to an infusion bag according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of the internal structure of the filtration apparatus according to embodiment 1 of the present invention.

Fig. 4 is a schematic perspective view of a filter device according to embodiment 1 of the present invention.

Fig. 5 is a schematic front view of a filter device according to embodiment 1 of the present invention.

Fig. 6 is a schematic view of the internal structure of a filtration apparatus according to embodiment 2 of the present invention.

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, a filtering device is disclosed. As shown in fig. 1 and 3, it comprises a housing 1, in which housing 1 a filter membrane 2 is arranged, a liquid passage 14 leading to the filter membrane 2, and a valve for opening or closing the liquid passage. Wherein, the axis of the through valve is perpendicular to the axis of the housing 1.

The valve is rotatably connected to the housing 1. The swivel connection is more convenient for the user to open or close the fluid passage 14, and the valve includes a swivel handle 31 disposed outside the housing 1, and a valve core 32 disposed in the housing, the valve core 32 having a valve passage 321 disposed therein. When the filter membrane 2 is used, the rotating handle 31 can be held to rotate, the valve core 32 is driven by the rotating handle 31 to rotate together, and when the valve channel 321 is communicated with the liquid channel 14, liquid can pass through the valve channel from the liquid channel 14 and further reach the filter membrane 2.

The particles can be filtered by the filter membrane 2, and the filtering is finished when the transfusion bottle or the transfusion bag is discharged. In addition, when in transportation or vibration, the filtering membrane 2 is easily influenced by liquid impact, so the invention isolates the liquid channel through the through valve and avoids the filtering membrane from contacting the transfusion before the transfusion.

As shown in fig. 1 and 3, the filter device further includes a rubber body 4, and the rubber body 4 is attached to one end of the housing 1. Two insertion marks are reserved at the top of the rubber body 4 and used for inserting the puncture outfit, and the communication between the filtering device and the puncture outfit is realized.

As shown in fig. 3, the housing 1 comprises an upper cover 11 and a lower cover 12 connected together, and the valve is connected to the lower cover 12.

As shown in fig. 3, an inner housing 13 is provided in the upper cover 11, and the filter membrane 2 is interposed between the inner housing 13 and the lower cover 12.

The inner sleeve 13 is provided with a cavity, one end of the cavity leads to the filtering membrane 2, and the other end of the cavity leads to the rubber body 4. The upper cover 11 is also provided with a supporting seat 16, and the filter membrane 2 is clamped between the supporting seat 16 and the lower cover 12. The support base 16 can support the filter membrane 2 and prevent the filter membrane from being crushed by infusion.

As shown in fig. 1, the filter device is connected to an infusion bag 6. The infusion bag 6 is provided with a medicine adding opening 61. As shown in fig. 3, 4 and 5, the housing is provided with an air inlet 15 opposite to the through valve, wherein the air inlet 15 is communicated with the valve passage 321, and the air inlet 15 is connected with an air film. The projection 17 acts as a pivot for the valve, wherein the projection 17 communicates with the inlet port 15 at one end and with the valve passage 321 at the other end. The protruding part not only realizes the function of the rotating shaft, but also realizes the function of ventilation. In use, air enters the valve passage 321 through the air film, and liquid does not escape. In addition, an inlet plug 5 for plugging the inlet is connected to the housing.

In other embodiments, the housing may be provided with threads thereon. The filtering device can be connected to an infusion bag or an infusion bottle through threads, and can also be directly molded and manufactured on the infusion bottle or the infusion bag.

Example 2

As shown in fig. 6, the present embodiment is the same as the other parts of embodiment 1 (the same reference numerals are used in the figures), and the difference is that the upper cover 11 of the present embodiment is provided with an internal thread 111, the lower cover 12 is provided with an external thread 121, and the upper cover 11 is screwed on the lower cover 12 through the arrangement of the internal thread 111 and the external thread 121, so that the fixation is realized.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A filter device for connection to an infusion container having a dispensing opening, the filter device comprising a housing having a filter membrane disposed therein for communicating with a fluid passage of the infusion container, the fluid passage being in communication with the filter membrane, a valve for opening or closing the fluid passage, the valve being rotatably connected to the housing, the valve comprising a rotatable handle disposed outside the housing and a valve element disposed within the housing, the valve element having a valve passage, the housing having an inlet opening opposite the valve passage, the inlet opening being in communication with the valve passage, wherein when the valve passage and the fluid passage are in communication, fluid can pass from the fluid passage through the valve passage and then to the filter membrane, and when the valve passage and the fluid passage are not in communication, fluid is blocked from reaching the filter membrane; the filter device includes a protrusion, the air inlet is disposed in the protrusion, and the through valve is rotatably coupled to the protrusion.

2. The filter apparatus of claim 1, wherein an air film is attached to the air inlet.

3. The filter device as in claim 1, wherein the central axis of the through valve is perpendicular to the central axis of the housing.

4. A filter device as claimed in claim 1, wherein an inlet plug is connected to the housing for blocking the inlet.

5. The filter apparatus of any of claims 1-4, wherein the housing includes an upper cover and a lower cover connected together, the through valve being connected to the lower cover.

6. The filtration apparatus of claim 5, wherein the upper cap and the lower cap are threadably connected.

7. The filtration apparatus as claimed in claim 5, wherein a support seat is provided in said upper cover, and said filter membrane is sandwiched between said support seat and said lower cover.

8. The filter apparatus of claim 7, further comprising a rubber body attached to one end of the housing.

9. The filtration device of claim 8 wherein an inner sleeve is disposed within said upper cover, said inner sleeve being sandwiched between said support base and said rubber body.

10. The filter apparatus of claim 9, wherein a cavity is disposed within said inner sleeve, one end of said cavity opening into said filter membrane and the other end of said cavity opening into said rubber body.

11. A filtering infusion container comprising a filtering device according to any one of claims 1-10, said filtering infusion container further comprising an infusion container, said filtering device being attached to said infusion container and said fluid passage opening into said infusion container at one end and into said filtering membrane at the other end.