WO2019215516A1 - Filter for infusion medical lines - Google Patents

Filter for infusion medical lines Download PDF

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Publication number
WO2019215516A1
WO2019215516A1 PCT/IB2019/052079 IB2019052079W WO2019215516A1 WO 2019215516 A1 WO2019215516 A1 WO 2019215516A1 IB 2019052079 W IB2019052079 W IB 2019052079W WO 2019215516 A1 WO2019215516 A1 WO 2019215516A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
channels
box
communication
shaped element
Prior art date
Application number
PCT/IB2019/052079
Other languages
French (fr)
Other versions
WO2019215516A8 (en
Inventor
Gianni Guala
Original Assignee
Industrie Borla S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CA3095097A priority Critical patent/CA3095097A1/en
Application filed by Industrie Borla S.P.A. filed Critical Industrie Borla S.P.A.
Priority to BR112020018794-1A priority patent/BR112020018794A2/en
Priority to EP19715580.7A priority patent/EP3790610A1/en
Priority to MX2020011926A priority patent/MX2020011926A/en
Priority to AU2019267226A priority patent/AU2019267226A1/en
Priority to US17/040,286 priority patent/US20210046243A1/en
Priority to JP2020557952A priority patent/JP7273850B2/en
Priority to CN201980030011.5A priority patent/CN112074315B/en
Priority to KR1020207031163A priority patent/KR20210006889A/en
Priority to SG11202008805YA priority patent/SG11202008805YA/en
Publication of WO2019215516A1 publication Critical patent/WO2019215516A1/en
Publication of WO2019215516A8 publication Critical patent/WO2019215516A8/en
Priority to ZA2020/05757A priority patent/ZA202005757B/en

Links

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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/38—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 with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters
    • A61M5/385—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 with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters using hydrophobic filters
    • 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
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/125—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated filters
    • A61M2205/126—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated filters with incorporated membrane filters
    • 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
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/128—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated valves
    • 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
    • A61M2205/7527—General characteristics of the apparatus with filters liquophilic, hydrophilic
    • 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
    • A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes

Definitions

  • the present invention regards a filter for infusion medical lines and more in particular an IV filter .
  • Filters thus made conventionally comprise a flattened box-like body having a first end wall and a second end wall, a pair of greater lateral walls, and a pair of smaller lateral walls.
  • Such filters are provided with an inlet connector for a liquid to be filtered and an outlet connector for the filtered liquid at the one and the other end wall.
  • a plate-shaped element formed on whose at least one of the opposite faces is a plurality of ribs defining parallel channels.
  • a respective filtering hydrophilic membrane Arranged on the or on each plurality of ribs is a respective filtering hydrophilic membrane which separates the channels from one or from respective interspaces delimited by the two greater walls.
  • the or each interspace is placed in communication with the inlet connector and the channels are placed in communication with the outlet connector. Furthermore, the or each interspace is placed in communication with the external by means of openings with associated hydrophobic membranes for deaerating the liquid.
  • Document CN 104083819 describes a filter for medical lines having vent holes with respective membranes arranged in an end wall of the filter in proximity of the outlet connector for the liquid.
  • the vent holes are placed in communication with a chamber designed to collect the liquid after it has been filtered by the hydrophilic membrane. The air venting is thus carried out only after filtering the liquid and it could be incomplete, in particular if the filter is used in a vertical position.
  • the object of the present invention is to overcome the aforementioned drawback.
  • the invention regards a filter for infusion medical lines of the type defined in the preamble of claim 1 whose primary characteristic lies in the fact that the deaeration openings are provided on the end walls of the box-like body and so that - in use - the infusion liquid initially touches at least one of said hydrophobic membranes and subsequently touches and flows through said at least one hydrophilic membrane.
  • the hydrophobic membranes are arranged at the ends of the greater lateral walls of the plate-shaped element at respective transverse manifolds which are in turn placed in communication with the deaeration openings .
  • the inlet and outlet connectors for the liquid are conveniently coaxial so that - in use - torsional moments are not generated in the inflow and outflow tubes of the medical liquid.
  • the inlet and outlet connectors for the liquid can be designed for tube-tube or luer-tube or tube-luer or luer-luer connections of said medical line.
  • the or each filtering hydrophilic membrane can also be obtained as a single piece with the respective hydrophobic membranes.
  • the invention also regards a method for filtering and deaerating an infusion liquid for medical lines which provides for the use of a filter as claimed herein .
  • figure 1 is a schematic perspective view of an embodiment of the filter according to the invention.
  • figure 2 is a plan and partially sectioned view of figure 1
  • figure 3 is a front elevational view according to arrow III of figure 1,
  • figure 4 is an exploded view of the filter of figure
  • FIG. 5 is a longitudinal sectional view according to line A-A of figure 2
  • figure 6 is an enlargement of the portion of the filter in the circle of figure 5
  • - figure 7 is a cross-sectional view according to line B-B of figure 2
  • FIG. 8 is a cross-sectional view according to line D-D of figure 2.
  • the infusion filter according to the invention is indicated in its entirety with 1.
  • the box-like body 2 comprises a first and second end wall 3, 4, a pair of greater lateral walls 25, 26, and a pair of smaller lateral walls 7, 8.
  • an inlet connector 9 of a liquid to be filtered is arranged at the first end wall 3 and arranged at the second end wall 4 .
  • An outlet connector 10 for the filtered liquid is arranged at the first end wall 3 .
  • duct 12 which connects the hole 11a with the internal of the box-like body 2.
  • a similar duct not visible in the drawings connects the hole lib with the internal of the box-like body 2.
  • a plate shaped element in the half-shells 5, 6 formed on whose opposite faces are respective pluralities of ribs 14 which define channels 15 extending longitudinally between the connectors 9, 10 is indicated with 13.
  • the opposite manifolds 22 of each end of the plate-shaped element 13 are placed in communication with each other by means of respective passages of the plate-shaped element 13, one of which is indicated with 27 in figure 7, and furthermore they are placed in communication respectively with the vent hole 11a and with the vent hole lib.
  • a respective hydrophilic membrane 16 Resting on each face of the plate-shaped element 13 is a respective hydrophilic membrane 16 which is welded to the plate-shaped element 13.
  • Two pairs of hydrophobic membranes 24 are arranged above the four manifolds 22 and for example fixed by means of welding. The two pairs of hydrophobic membranes 24 can also be integrated and obtained as a single piece respectively with the one and with the other hydrophilic membrane 16.
  • the plate-shaped element 13 has a projecting perimeter edge 17 which is coupled with respective annular lips 18 of the half-shells 5, 6.
  • the inlet 9 and outlet 10 connectors for the liquid are coaxial to each other, are integrally joined to the plate-shaped element 13 and they can be configured for the tube-tube or luer-tube or tube-luer or luer-luer connections of the medical line.
  • Figures 5-8 show two interspaces 23, 23 coplanar to the faces of the plate-shaped element 13, separated by it by means of the respective hydrophilic membranes 16, 16 and each externally delimited by the respective half-shell 5, 6.
  • a passage 19 (figure 5), provided on the plate-shaped element 13 at the end of the inlet connector 9 places both the interspaces 23, 23 in communication with such connector 9.
  • a passage 21 of the plate-shaped element 13 places the outlet connector 10 in communication with the plurality of channels 15.
  • the filter 1 according to the invention has a configuration that is compact and small in size.
  • the infusion liquid - through the inlet connector 9 and the passage 19 - enters into the interspaces 23, 23 initially touching the proximal hydrophobic membranes 24, 24 which allow the air trapped in the liquid to flow out into the respective manifolds 22 before being dispersed outside the filter 1 through the duct 12 and the hole 11a.
  • the fluid touches and flows through the filtering hydrophilic membrane 16, 16 so as to be conveyed from the channels 15 towards the passage 21 and flow out through the outlet connector 10.
  • the filter 1 according to the invention is normally used in a vertical portion of an infusion line, i.e. it is oriented so that the inlet connector 9 is positioned at the upper part with respect to the outlet connector 10. After touching the proximal hydrophobic membranes 24, should the liquid still contain air, for example due to the orientation of use different from the one described previously, the residual air can flow out through the distal membranes 24 and the respective manifolds 22 connected to the hole lib.
  • the arrangement of the hydrophobic membranes 24 upstream and downstream of the flow in the interspaces 23 of the filter 1 reveals the further advantage lying in the fact that, in particular during the priming, the air contained in the liquid accumulates in the end areas of the filter 1 so as not to occlude part of the filtering surfaces; in this manner, the air has more time to flow out with respect to the known solutions described previously.
  • the filter could generally have a different shape with respect to the one represented in the drawings and it could also be provided with a single filtering hydrophilic membrane 16 arranged on ribs 14 formed on only one of the faces of the plate-shaped element 13.

Landscapes

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

Abstract

Filter (1) for infusion medical lines comprising a flattened box-like body (2) provided inside which is a plate-shaped element (13) formed on whose one or both of the opposite faces are respective ribs (14) defining inner channels (15). Arranged on the ribs are respective filtering hydrophilic membranes (16) which separate the channels (15) from respective interspaces (23, 23) delimited by a pair of half-shells (5, 6). The interspaces (23, 23) are placed in communication with the inlet connector (9), the channels (15) are placed in communication with the outlet fitting (10) and the interspaces (23) are placed in communication with the outside through vent openings (11a, lib) arranged on the end walls (3, 4) of the box-like body (2).

Description

"Filter for infusion medical lines" k k k k
Field of the invention
The present invention regards a filter for infusion medical lines and more in particular an IV filter .
Filters thus made conventionally comprise a flattened box-like body having a first end wall and a second end wall, a pair of greater lateral walls, and a pair of smaller lateral walls. Such filters are provided with an inlet connector for a liquid to be filtered and an outlet connector for the filtered liquid at the one and the other end wall. Arranged in the box-like body is a plate-shaped element formed on whose at least one of the opposite faces is a plurality of ribs defining parallel channels. Arranged on the or on each plurality of ribs is a respective filtering hydrophilic membrane which separates the channels from one or from respective interspaces delimited by the two greater walls. The or each interspace is placed in communication with the inlet connector and the channels are placed in communication with the outlet connector. Furthermore, the or each interspace is placed in communication with the external by means of openings with associated hydrophobic membranes for deaerating the liquid.
State of the prior art
Documents EP-1208857, EP-1421960, US4525182 and US5439587 disclose filters thus made, wherein the deaeration openings provided with hydrophobic membranes are provided on the pair of greater lateral walls of the box-like body. Such positioning of the deaeration openings entails the drawback that they can be inadvertently occluded when handling the filter, or they can be unintentionally obstructed by objects present in proximity of the place of use of the filter, with the unacceptable risk of the liquid not being deaerated effectively.
Document WO 95/28215 describes a medical filter with multiple compartment comprising one or more vents each provided with a porous membrane for separating the air from the liquid. The vents are arranged at the ends of the box-like body but they are oriented perpendicularly to the greater faces of the filter, i.e. they terminate thereon, revealing the same drawbacks described above.
Document CN 104083819 describes a filter for medical lines having vent holes with respective membranes arranged in an end wall of the filter in proximity of the outlet connector for the liquid. The vent holes are placed in communication with a chamber designed to collect the liquid after it has been filtered by the hydrophilic membrane. The air venting is thus carried out only after filtering the liquid and it could be incomplete, in particular if the filter is used in a vertical position.
Summary of the invention
The object of the present invention is to overcome the aforementioned drawback.
With the aim of achieving such object, the invention regards a filter for infusion medical lines of the type defined in the preamble of claim 1 whose primary characteristic lies in the fact that the deaeration openings are provided on the end walls of the box-like body and so that - in use - the infusion liquid initially touches at least one of said hydrophobic membranes and subsequently touches and flows through said at least one hydrophilic membrane.
The hydrophobic membranes are arranged at the ends of the greater lateral walls of the plate-shaped element at respective transverse manifolds which are in turn placed in communication with the deaeration openings .
The inlet and outlet connectors for the liquid are conveniently coaxial so that - in use - torsional moments are not generated in the inflow and outflow tubes of the medical liquid.
The inlet and outlet connectors for the liquid can be designed for tube-tube or luer-tube or tube-luer or luer-luer connections of said medical line.
The or each filtering hydrophilic membrane can also be obtained as a single piece with the respective hydrophobic membranes.
The invention also regards a method for filtering and deaerating an infusion liquid for medical lines which provides for the use of a filter as claimed herein .
Brief description of the drawings
Further characteristics and advantages of the invention will be apparent from the following detailed description, with reference to the attached drawings, provided by way of non-limiting example, wherein:
figure 1 is a schematic perspective view of an embodiment of the filter according to the invention,
- figure 2 is a plan and partially sectioned view of figure 1,
- figure 3 is a front elevational view according to arrow III of figure 1,
- figure 4 is an exploded view of the filter of figure
1,
- figure 5 is a longitudinal sectional view according to line A-A of figure 2,
figure 6 is an enlargement of the portion of the filter in the circle of figure 5, - figure 7 is a cross-sectional view according to line B-B of figure 2,
- figure 8 is a cross-sectional view according to line D-D of figure 2.
Detailed description of the invention
Initially with reference to figures 1-3, the infusion filter according to the invention is indicated in its entirety with 1.
It comprises a flattened box-like body 2 formed by a pair of half-shells 5, 6. The box-like body 2 comprises a first and second end wall 3, 4, a pair of greater lateral walls 25, 26, and a pair of smaller lateral walls 7, 8. Arranged at the first end wall 3 is an inlet connector 9 of a liquid to be filtered and arranged at the second end wall 4 is an outlet connector 10 for the filtered liquid. A first vent opening, in the form of a hole 11a, is provided for on the first end wall 3 in proximity of the inlet connector 9 and a second vent opening, in the form of a hole lib, is provided on the second end wall 4 in proximity of the outlet connector 10.
Visible in the partial section of figure 2 is a duct 12 which connects the hole 11a with the internal of the box-like body 2. A similar duct not visible in the drawings connects the hole lib with the internal of the box-like body 2.
Now, with reference to figures 4 to 8 a plate shaped element in the half-shells 5, 6 formed on whose opposite faces are respective pluralities of ribs 14 which define channels 15 extending longitudinally between the connectors 9, 10 is indicated with 13. Provided in proximity of the ends of the channels 15 of each face and perpendicularly thereto are transverse manifolds 22. The opposite manifolds 22 of each end of the plate-shaped element 13 are placed in communication with each other by means of respective passages of the plate-shaped element 13, one of which is indicated with 27 in figure 7, and furthermore they are placed in communication respectively with the vent hole 11a and with the vent hole lib. Resting on each face of the plate-shaped element 13 is a respective hydrophilic membrane 16 which is welded to the plate-shaped element 13. Two pairs of hydrophobic membranes 24 are arranged above the four manifolds 22 and for example fixed by means of welding. The two pairs of hydrophobic membranes 24 can also be integrated and obtained as a single piece respectively with the one and with the other hydrophilic membrane 16.
The plate-shaped element 13 has a projecting perimeter edge 17 which is coupled with respective annular lips 18 of the half-shells 5, 6.
The inlet 9 and outlet 10 connectors for the liquid are coaxial to each other, are integrally joined to the plate-shaped element 13 and they can be configured for the tube-tube or luer-tube or tube-luer or luer-luer connections of the medical line.
Figures 5-8 show two interspaces 23, 23 coplanar to the faces of the plate-shaped element 13, separated by it by means of the respective hydrophilic membranes 16, 16 and each externally delimited by the respective half-shell 5, 6. A passage 19 (figure 5), provided on the plate-shaped element 13 at the end of the inlet connector 9 places both the interspaces 23, 23 in communication with such connector 9.
Referring more in detail with figure 6, a passage 21 of the plate-shaped element 13 places the outlet connector 10 in communication with the plurality of channels 15.
As clear from the above, the filter 1 according to the invention has a configuration that is compact and small in size.
During use, the infusion liquid - through the inlet connector 9 and the passage 19 - enters into the interspaces 23, 23 initially touching the proximal hydrophobic membranes 24, 24 which allow the air trapped in the liquid to flow out into the respective manifolds 22 before being dispersed outside the filter 1 through the duct 12 and the hole 11a.
Subsequently, the fluid touches and flows through the filtering hydrophilic membrane 16, 16 so as to be conveyed from the channels 15 towards the passage 21 and flow out through the outlet connector 10.
The filter 1 according to the invention is normally used in a vertical portion of an infusion line, i.e. it is oriented so that the inlet connector 9 is positioned at the upper part with respect to the outlet connector 10. After touching the proximal hydrophobic membranes 24, should the liquid still contain air, for example due to the orientation of use different from the one described previously, the residual air can flow out through the distal membranes 24 and the respective manifolds 22 connected to the hole lib.
The arrangement of the hydrophobic membranes 24 upstream and downstream of the flow in the interspaces 23 of the filter 1 reveals the further advantage lying in the fact that, in particular during the priming, the air contained in the liquid accumulates in the end areas of the filter 1 so as not to occlude part of the filtering surfaces; in this manner, the air has more time to flow out with respect to the known solutions described previously.
Obviously, the construction details and the embodiments may widely vary with respect to what has been described and illustrated, without departing from the scope of protection of the present invention as defined in the claims that follow. Thus, for example, the filter could generally have a different shape with respect to the one represented in the drawings and it could also be provided with a single filtering hydrophilic membrane 16 arranged on ribs 14 formed on only one of the faces of the plate-shaped element 13.

Claims

1. A filter (1) for infusion medical lines comprising a flattened box-like body (2) including a pair of half-shells (5, 6) and provided with an inlet connector (9) for a liquid to be filtered and an outlet connector (10) for the filtered liquid, said connectors (9, 10) being provided respectively at a first end wall (3) and at a second end wall (4) of the box-like body (2), a plate-shaped element (13) being arranged within the box-like body (2) formed on whose at least one of the opposite faces are ribs (14) which define inner channels (15) parallelly extending between said connectors (9, 10), on said ribs (14) there being arranged at least one filtering hydrophilic membrane (16) which separates said channels (15) from an interspace (23) delimited by the corresponding half shell (5, 6), said interspace (23) being placed in communication with the inlet connector (9) and said channels (15) communicating with the outlet connector (10), and said interspace (23) further being placed in communication with the outside through vent openings (11a, lib) with associated hydrophobic membranes (24), characterized in that said vent openings (11a, lib) are arranged on said end walls (3, 4) of the box-like body
(2) and so that - in use - the infusion liquid initially touches at least one of said hydrophobic membranes and subsequently touches and flows through said at least one hydrophilic membrane (16) .
2 . Filter according to claim 1, characterized in that said channels (15) are provided on both opposite faces of said plate-shaped element (13) and a pair of filtering hydrophilic membranes (16) separate said channels (15) from a pair of interspaces (23) each delimited by a respective half-shell (5, 6) .
3 . Filter (1) according to claim 1 or claim 2, characterized in that at the ends of the opposite faces of the plate-shaped element (13) there are provided transverse manifolds (22) on which said hydrophobic membranes (24) are arranged, said transverse manifolds (22) being placed in communication with said vent openings (11a, lib) .
4 . Filter (1) according to any one of claims 1 to 3, characterized in that said inlet connector (9) and said outlet connector (10) are coaxial.
5 . Filter (1) according to one or more of the preceding claims, characterized in that said inlet connector (9) and said outlet connector (10) are designed for tube-tube or luer-tube or tube-luer or luer-luer connections of said medical line.
6. Filter (1) according to one or more of the preceding claims, characterized in that the or each filtering hydrophilic membrane (16) is made of one piece with said hydrophobic membranes (24) .
PCT/IB2019/052079 2018-05-08 2019-03-14 Filter for infusion medical lines WO2019215516A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US17/040,286 US20210046243A1 (en) 2018-05-08 2019-03-14 Filter for infusion medical lines
BR112020018794-1A BR112020018794A2 (en) 2018-05-08 2019-03-14 filter for medical infusion lines
EP19715580.7A EP3790610A1 (en) 2018-05-08 2019-03-14 Filter for infusion medical lines
MX2020011926A MX2020011926A (en) 2018-05-08 2019-03-14 Filter for infusion medical lines.
AU2019267226A AU2019267226A1 (en) 2018-05-08 2019-03-14 Filter for infusion medical lines
CA3095097A CA3095097A1 (en) 2018-05-08 2019-03-14 Filter for infusion medical lines
JP2020557952A JP7273850B2 (en) 2018-05-08 2019-03-14 Filter for infusion line
SG11202008805YA SG11202008805YA (en) 2018-05-08 2019-03-14 Filter for infusion medical lines
KR1020207031163A KR20210006889A (en) 2018-05-08 2019-03-14 Filters for infusion medical lines
CN201980030011.5A CN112074315B (en) 2018-05-08 2019-03-14 Filter for medical infusion line
ZA2020/05757A ZA202005757B (en) 2018-05-08 2020-09-16 Filter for infusion medical lines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000005165 2018-05-08
IT102018000005165A IT201800005165A1 (en) 2018-05-08 2018-05-08 FILTER FOR MEDICAL INFUSION LINES

Publications (2)

Publication Number Publication Date
WO2019215516A1 true WO2019215516A1 (en) 2019-11-14
WO2019215516A8 WO2019215516A8 (en) 2020-01-02

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ID=63080281

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/052079 WO2019215516A1 (en) 2018-05-08 2019-03-14 Filter for infusion medical lines

Country Status (13)

Country Link
US (1) US20210046243A1 (en)
EP (1) EP3790610A1 (en)
JP (1) JP7273850B2 (en)
KR (1) KR20210006889A (en)
CN (1) CN112074315B (en)
AU (1) AU2019267226A1 (en)
BR (1) BR112020018794A2 (en)
CA (1) CA3095097A1 (en)
IT (1) IT201800005165A1 (en)
MX (1) MX2020011926A (en)
SG (1) SG11202008805YA (en)
WO (1) WO2019215516A1 (en)
ZA (1) ZA202005757B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4344714A1 (en) 2022-09-28 2024-04-03 Industrie Borla S.p.A. Filter for infusion medical lines
EP4353283A1 (en) 2022-10-11 2024-04-17 Industrie Borla S.p.A. Filter for infusion medical lines

Families Citing this family (2)

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