CN108939207B - Filter device and filtration transfusion container comprising same - Google Patents

Filter device and filtration transfusion container comprising same Download PDF

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Publication number
CN108939207B
CN108939207B CN201710391177.2A CN201710391177A CN108939207B CN 108939207 B CN108939207 B CN 108939207B CN 201710391177 A CN201710391177 A CN 201710391177A CN 108939207 B CN108939207 B CN 108939207B
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CN
China
Prior art keywords
hole
accommodating cavity
filter device
filtering
shell
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CN201710391177.2A
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Chinese (zh)
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CN108939207A (en
Inventor
毛亚凌
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Shanghai Jinta Medical Co ltd
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Shanghai Jinta Medical Co ltd
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Priority to CN201710391177.2A priority Critical patent/CN108939207B/en
Priority to PCT/CN2018/087938 priority patent/WO2018219182A1/en
Publication of CN108939207A publication Critical patent/CN108939207A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses a filtering device and a filtering transfusion container comprising the same. The filtering device comprises: a first part comprising a housing provided with a first accommodation cavity; the second component comprises a through hole and an executing piece, the executing piece is used for closing or opening the through hole, and a sealing sleeve is sleeved on the outer surface of one end of the through hole, inserted into the through hole, of the executing piece; a filter membrane interposed between the first member and the second member; the flow path sequentially passes through the through hole, the filtering membrane and the first accommodating cavity. The filtering transfusion container comprises a transfusion container and the filtering device, wherein the filtering device is connected to the transfusion container, one end of the flow path is communicated with the transfusion container, and the other end is communicated with the filtering membrane. The structure of the invention ensures that the filtering membrane and the infusion liquid are always in different closed spaces before the use of a patient, so as to keep the optimal integrity of the filtering membrane, and simultaneously, the filtering device can not generate the condition of liquid leakage, and an executing piece can not loosen in the transportation process.

Description

Filter device and filtration transfusion container comprising same
Technical Field
The invention relates to a filtering device and a filtering transfusion container comprising the same.
Background
In clinical infusion, the filtering device with the filtering membrane can achieve the optimal filtering effect only by keeping the integrity of the filtering membrane before use, that is, the filtering membrane is not destroyed, and is contacted with infusion liquid for the first time when a patient uses the filtering membrane. However, in the prior art, steam and other substances are easy to contact the filtering membrane in different specific sterilization processes (such as sterilization modes of various medical industries such as steam sterilization) of pretreatment before delivery, so that the expected filtering effect of the filtering membrane is changed, and the effectiveness of the filtering membrane is reduced.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, steam and other substances contact a filtering membrane before a patient uses the filtering membrane, so that the expected filtering effect of the filtering membrane is changed and the effectiveness of the filtering membrane is reduced, and provides a filtering device and a filtering transfusion container comprising the filtering device.
The invention solves the technical problems by the following technical proposal:
a filter device, comprising:
The first component comprises a shell, and a first accommodating cavity is formed by surrounding the first side wall of the shell and the bottom plate;
the second component is connected with the first component and comprises a through hole and an executing piece, the executing piece is used for closing or opening the through hole, and a sealing sleeve is sleeved on the outer surface of one end of the through hole, which is inserted into the executing piece;
the filtering membrane is clamped between the first component and the second component;
the filtering device further comprises a flow path, and the flow path sequentially passes through the through hole, the filtering membrane, the first accommodating cavity, the gap and the second accommodating cavity.
In the technical scheme, through the sealing mode of the sealing sleeve, the filtering device keeps good sealing performance after a specific sterilization process (such as a sterilization mode of a plurality of medical industries such as steam sterilization) is carried out, namely, the filtering membrane and infusion liquid are always in different sealed spaces before being used by a patient, so that the optimal integrity of the filtering membrane is maintained, meanwhile, the filtering device can not generate the condition of liquid leakage, and an executing piece can not loosen in the transportation process.
Preferably, the first component further comprises an inner shell, one end of the inner shell penetrates through the first accommodating cavity, the other end of the inner shell penetrates through a bottom plate of the outer shell and is located outside the outer shell, the bottom plate is connected to the outer surface of the second side wall of the inner shell in a sealing mode, a second accommodating cavity is formed by surrounding the second side wall and the top plate, a plurality of gaps are formed in the second side wall, penetrating through the first accommodating cavity, of the inner shell, and the gaps are communicated with the first accommodating cavity and the second accommodating cavity;
The flow path sequentially passes through the through hole, the filtering membrane, the first accommodating cavity, the gap and the second accommodating cavity.
In the technical scheme, through the structure of the inner shell, after the infusion liquid reaches the first accommodating cavity along the flow path, the liquid level enters the second accommodating cavity through the gap and then is discharged, so that the infusion liquid is prevented from being filtered by the filtering membrane and then is in a water drop shape to be directly dripped into the needle hole of the bottle to form a continuous air plug, and the infusion process can be better controlled; simultaneously, through the structure that sets up the inner shell, when the contact pin inserts the second accommodation chamber, owing to the resistance of the roof of inner shell, can prevent that the contact pin from directly piercing filtering membrane, improved the security in the operation process. In addition, the gap in the technical scheme also has the function of preventing bubbles from entering the second accommodating cavity, so that the safety and reliability of the infusion liquid are ensured.
Preferably, the first part is integrally formed.
Preferably, the second side wall of the inner shell comprises a first portion and a second portion connected, the thickness of the first portion being smaller than the thickness of the second portion; the first part is positioned in the first accommodating cavity, and the first part is provided with the plurality of gaps; the second part is positioned outside the shell, and the bottom plate of the shell is connected with the outer surface of one end of the second part, which is close to the first part, in a sealing way.
Preferably, the filter device further comprises a sealing component, the sealing component is clamped at the other end of the inner shell, and the sealing component is used for sealing the second accommodating cavity.
Preferably, the sealing sleeve is made of rubber.
Preferably, the central axis of the actuator is perpendicular to the central axis of the through hole, and the actuator moves linearly in a direction perpendicular to the central axis of the through hole.
Preferably, the second component further comprises a mounting seat, the executing piece is arranged in the mounting seat in a penetrating mode, and the central axis of the mounting seat is perpendicular to the central axis of the through hole.
Preferably, the actuator comprises a head and a stem connected, the head having a diameter greater than the stem.
Preferably, the second part further comprises a limiting device, the limiting device comprising:
the first limiting groove is formed in the mounting seat;
The limiting bulge is arranged on one side of the head part of the executing piece, which faces the through hole, and the limiting bulge is arranged in the first limiting groove in a sliding manner;
The first limiting groove is matched with the limiting protrusion and used for limiting the moving direction of the executing piece.
Preferably, the second component further comprises a second limiting groove, the second limiting groove is arranged on one side, facing the through hole, of the head of the executing piece, one end, facing the second limiting groove, of the third side wall of the mounting seat is slidably arranged in the second limiting groove, and the second limiting groove is matched with the third side wall of the mounting seat to limit movement of the executing piece.
Preferably, one end of the first component is buckled with a corresponding end of the second component, and the first component is in sealing connection with the second component.
The invention also provides a filtering transfusion container which is characterized by comprising the filtering device, wherein the filtering transfusion container further comprises a transfusion container, the filtering device is connected to the transfusion container, one end of the flow path is communicated with the transfusion container, and the other end of the flow path is communicated with the filtering membrane.
The invention has the positive progress effects that:
1. the invention has compact structure and high space utilization rate;
2. The sealing sleeve is arranged on the outer surface of the execution part, so that the filtering device keeps good sealing performance after a specific sterilization process (such as sterilization modes of a plurality of medical industries such as steam sterilization) is carried out, namely, the filtering membrane and infusion liquid are always in different sealed spaces before the use of a patient, the optimal integrity of the filtering membrane is maintained, meanwhile, the filtering device does not generate the condition of liquid leakage, and the execution part does not loosen in the transportation process;
3. According to the invention, through the structure of the inner shell, the infusion liquid can be prevented from being filtered by the filtering membrane and then is directly dripped into the bottle inserting needle hole in a water drop shape to form a continuous air plug, so that the infusion process can be better controlled, the bottle inserting needle can be prevented from directly piercing the filtering membrane due to the blocking of the top plate of the inner shell, the safety in the operation process is improved, and meanwhile, the gap of the inner shell also has the function of preventing bubbles from entering the second accommodating cavity, so that the safety and the reliability of the infusion liquid are ensured.
Drawings
Fig. 1 is an exploded view of a filtration infusion container according to embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of the filter device of embodiment 1 of the present invention when the actuator closes the through hole.
Fig. 3 is a cross-sectional view of the filter device according to embodiment 1 of the present invention when the actuator opens the through hole.
Fig. 4 is an exploded view of the filtration transfusion container according to embodiment 2 of the present invention.
Fig. 5 is a cross-sectional view of the filter device according to embodiment 2 of the present invention when the actuator closes the through hole.
Fig. 6 is a cross-sectional view of the filter device according to embodiment 2 of the present invention when the actuator opens the through hole.
Description of the reference numerals
Filter device 1
Sealing member 10
First part 20
Housing 21
First side wall 211
Bottom plate 212
First accommodation chamber 213
Inner shell 22
Second sidewall 221
First portion 2211
Second portion 2212
Top plate 222
Second accommodation chamber 223
Gap 224
Filtration membrane 30
Second part 40
Through hole 41
Actuator 42
Head 421
Limiting boss 4211
Second limiting groove 4212
Rod portion 422
Sealing sleeve 423
Mounting seat 43
First spacing groove 431
Third sidewall 432
Flow path 50
Fastener 60
Transfusion container 2
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
As will be appreciated with reference to fig. 1-3, the present embodiment provides a filtering apparatus 1, which includes: a sealing member 10, a first member 20, a filtering membrane 30, and a second member 40. One end of the first component 20 is buckled with a corresponding end of the second component 40, and the first component 20 is in sealing connection with the second component 40. The filter membrane 30 is sandwiched between the first member 20 and the second member 40. The first member 20 is integrally formed.
The first member 20 includes: an outer shell 21 and an inner shell 22. The first side wall 211 and the bottom plate 212 of the housing 21 are surrounded to form a first accommodating cavity 213. One end of the inner shell 22 is arranged in the first accommodating cavity 213 in a penetrating way, the other end of the inner shell 22 is arranged on the bottom plate 212 of the outer shell 21 in a penetrating way and is positioned outside the outer shell 21, the bottom plate 212 is connected to the outer surface of the second side wall 221 of the inner shell 22 in a sealing way, the second side wall 221 and the top plate 222 are surrounded to form a second accommodating cavity 223, the second side wall 221 of the inner shell 22 arranged in the first accommodating cavity 213 in a penetrating way is provided with four gaps 224, and the four gaps 224 are communicated with the first accommodating cavity 213 and the second accommodating cavity 223. Four gaps 224 are equally spaced along the circumference of the second accommodation chamber 223. In other alternative embodiments, the number of gaps 224 may be two, three, or other numbers.
The second side wall 221 of the inner housing 22 includes a first portion 2211 and a second portion 2212 connected, the thickness of the first portion 2211 being smaller than the thickness of the second portion 2212; the first portion 2211 is located in the first accommodating cavity 213, and the first portion 2211 is provided with the foregoing gap 224; the second portion 2212 is positioned outside the housing 21, and the bottom plate 212 of the housing 21 is sealingly connected to the outer surface of the end of the second portion 2212 adjacent to the first portion 2211.
The sealing member 10 is clamped at the other end of the inner housing 22, and the sealing member 10 is used for sealing the second accommodating cavity 223. The sealing member 10 is made of rubber. In this embodiment, the sealing member 10 is further sleeved with a fixing member 60, and one end of the fixing member 60 is clamped and arranged outside one end of the inner casing 22, which is close to the sealing member 10, along the circumferential direction. The fastener 60 is used to better secure the seal member 10 to one end of the inner housing 22.
The second member 40 includes a through hole 41 and an actuator 42, and the actuator 42 is used to close or open the through hole 41. The central axis of the actuator 42 is perpendicular to the central axis of the through hole 41, and the actuator 42 moves linearly in a direction perpendicular to the central axis of the through hole 41.
The outer surface of the actuator 42 inserted into one end of the through hole 41 is sleeved with a sealing sleeve 423. In this way, by means of the sealing sleeve 423, the filtering device 1 keeps good sealing performance after a specific sterilization process (such as sterilization in various medical industries like steam sterilization), that is, the filtering membrane 30 and the infusion liquid are always in different sealed spaces before the use of a patient, so that the optimal integrity of the filtering membrane is maintained, meanwhile, the filtering device cannot generate the condition of liquid leakage, and the executing piece cannot loosen during the transportation process. In this embodiment, the sealing sleeve 423 is made of rubber.
The actuator 42 includes a head 421 and a stem 422 connected, the head 421 having a diameter greater than the stem 422.
The second part 40 further comprises a mounting seat 43 and a limiting means. The actuator 42 is disposed in the mounting seat 43 in a penetrating manner, and a central axis of the mounting seat 43 is perpendicular to a central axis of the through hole 41. The limiting device comprises: a first spacing groove 431 and a spacing protrusion 4211. The first limiting groove 431 is disposed on the mounting seat 43. The limiting protrusion 4211 is disposed on a side of the head 421 of the actuator 42 facing the through hole 41, and the limiting protrusion 4211 is slidably disposed in the first limiting groove 431. The first limiting groove 431 cooperates with the limiting protrusion 4211 to limit the moving direction of the actuator 42.
The filter device 1 further comprises a flow path 50, and the flow path 50 sequentially passes through the through hole 41, the filter membrane 30, the first accommodating cavity 213, the gap 224, and the second accommodating cavity 223.
The working principle of the invention is as follows: when the infusion liquid reaches the first accommodating cavity along the flow path, the level of the infusion liquid gradually rises, and the infusion liquid enters the second accommodating cavity through the gap after reaching the designated height and then is discharged, so that the infusion liquid can be prevented from being filtered by the filtering membrane and then is in a water drop shape to be directly dripped into the needle hole of the bottle to form a continuous air plug, and the infusion process can be controlled better. Simultaneously, through the structure that sets up the inner shell, when the contact pin inserts the second accommodation chamber, owing to the resistance of the roof of inner shell, can prevent that the contact pin from directly piercing filtering membrane, improved the security in the operation process. In addition, the gap in the technical scheme also has the function of preventing bubbles from entering the second accommodating cavity, so that the safety and reliability of the infusion liquid are ensured.
The present embodiment also provides a filtration infusion container comprising the filtration device 1 as above, the filtration infusion container further comprising an infusion container 2, the filtration device 1 being connected to the infusion container 2, and one end of the flow path 50 leading to the infusion container 2 and the other end leading to the filtration membrane 30.
Example 2
As shown in fig. 4-6, the overall structure of the filtering device 1 of the present embodiment is basically the same as that of embodiment 1, except that the second member 40 further includes a second limiting groove 4212, the second limiting groove 4212 is disposed on a side facing the through hole 41 in the head 421 of the actuator 42, one end facing the second limiting groove 4212 in the third side wall 432 of the mounting seat 43 is slidably disposed in the second limiting groove 4212, and the second limiting groove 4212 cooperates with the third side wall 432 of the mounting seat 43 to limit the movement of the actuator 42.
This embodiment also provides a filtration transfusion container comprising the filtration device 1 as above, and the overall structure of the filtration transfusion container is substantially the same as that in embodiment 1.
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 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 principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (13)

1.A filter device, comprising:
The first component comprises a shell, and a first accommodating cavity is formed by surrounding the first side wall of the shell and the bottom plate;
the second component is connected with the first component and comprises a through hole and an executing piece, the executing piece is used for closing or opening the through hole, and a sealing sleeve is sleeved on the outer surface of one end of the through hole, which is inserted into the executing piece;
the filtering membrane is clamped between the first component and the second component;
The filtering device further comprises a flow path, and the flow path sequentially passes through the through hole, the filtering membrane and the first accommodating cavity.
2. The filter device according to claim 1, wherein the first member further comprises an inner shell, one end of the inner shell is inserted into the first accommodating cavity, the other end of the inner shell is inserted into a bottom plate of the outer shell and is positioned outside the outer shell, the bottom plate is connected to the outer surface of the second side wall of the inner shell in a sealing manner, a second accommodating cavity is formed by surrounding the second side wall and the top plate, a plurality of gaps are formed on the second side wall of the inner shell inserted into the first accommodating cavity, and the gaps are communicated with the first accommodating cavity and the second accommodating cavity;
The flow path sequentially passes through the through hole, the filtering membrane, the first accommodating cavity, the gap and the second accommodating cavity.
3. The filter device of claim 2, wherein the first member is integrally formed.
4. The filter apparatus of claim 2, wherein the second sidewall of the inner housing includes a first portion and a second portion connected, the first portion having a thickness less than a thickness of the second portion; the first part is positioned in the first accommodating cavity, and the first part is provided with the plurality of gaps; the second part is positioned outside the shell, and the bottom plate of the shell is connected with the outer surface of one end of the second part, which is close to the first part, in a sealing way.
5. The filter device of claim 2, further comprising a sealing member, wherein the sealing member is engaged with the other end of the inner housing, and the sealing member is used to seal the second accommodating cavity.
6. The filter device of claim 1, wherein the sealing boot is rubber.
7. The filter device of claim 1, wherein a central axis of the actuator is perpendicular to a central axis of the through-hole, and the actuator moves linearly in a direction perpendicular to the central axis of the through-hole.
8. The filter device of claim 7, wherein the second member further comprises a mounting seat, the actuator being disposed through the mounting seat, a central axis of the mounting seat being perpendicular to a central axis of the through-hole.
9. The filter device of claim 8, wherein the actuator comprises a head and a stem connected, the head having a diameter greater than a diameter of the stem.
10. The filter apparatus of claim 9, wherein the second member further comprises a stop means, the stop means comprising:
the first limiting groove is formed in the mounting seat;
The limiting bulge is arranged on one side of the head part of the executing piece, which faces the through hole, and the limiting bulge is arranged in the first limiting groove in a sliding manner;
The first limiting groove is matched with the limiting protrusion and used for limiting the moving direction of the executing piece.
11. The filter device according to claim 9, wherein the second member further comprises a second limiting groove provided in a side of the head portion of the actuator facing the through hole, wherein an end of the third side wall of the mounting seat facing the second limiting groove is slidably provided in the second limiting groove, and the second limiting groove cooperates with the third side wall of the mounting seat to limit movement of the actuator.
12. The filter device according to any one of claims 1-11, wherein one end of the first member is snapped onto a corresponding end of the second member, and wherein the first member is sealingly connected to the second member.
13. A filtration infusion container comprising a filtration device according to any one of claims 1 to 12, said filtration infusion container further comprising an infusion container, said filtration device being connected to said infusion container, and one end of said flow path leading to said infusion container and the other end leading to said filtration membrane.
CN201710391177.2A 2017-05-27 2017-05-27 Filter device and filtration transfusion container comprising same Active CN108939207B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710391177.2A CN108939207B (en) 2017-05-27 2017-05-27 Filter device and filtration transfusion container comprising same
PCT/CN2018/087938 WO2018219182A1 (en) 2017-05-27 2018-05-23 Filtering device and filtering infusion container comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710391177.2A CN108939207B (en) 2017-05-27 2017-05-27 Filter device and filtration transfusion container comprising same

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CN108939207A CN108939207A (en) 2018-12-07
CN108939207B true CN108939207B (en) 2024-04-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0968484A (en) * 1995-08-31 1997-03-11 Eiken Chem Co Ltd Liquid sampler and sampling method
CN205163787U (en) * 2015-10-19 2016-04-20 广西医药科技医疗用品厂 Single -use fine filtration infusion apparatus
CN106237443A (en) * 2015-12-22 2016-12-21 陈陆陆 Defecator and include its filtration infusion vessel
CN207980119U (en) * 2017-05-27 2018-10-19 江苏金塔药业有限公司 Filter device and filtering infusion vessel including it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0968484A (en) * 1995-08-31 1997-03-11 Eiken Chem Co Ltd Liquid sampler and sampling method
CN205163787U (en) * 2015-10-19 2016-04-20 广西医药科技医疗用品厂 Single -use fine filtration infusion apparatus
CN106237443A (en) * 2015-12-22 2016-12-21 陈陆陆 Defecator and include its filtration infusion vessel
CN207980119U (en) * 2017-05-27 2018-10-19 江苏金塔药业有限公司 Filter device and filtering infusion vessel including it

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