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WO2025036777A1 - Perforateur médical avec protection contre l'évacuation de gaz - Google Patents

Perforateur médical avec protection contre l'évacuation de gaz Download PDF

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Publication number
WO2025036777A1
WO2025036777A1 PCT/EP2024/072264 EP2024072264W WO2025036777A1 WO 2025036777 A1 WO2025036777 A1 WO 2025036777A1 EP 2024072264 W EP2024072264 W EP 2024072264W WO 2025036777 A1 WO2025036777 A1 WO 2025036777A1
Authority
WO
WIPO (PCT)
Prior art keywords
medical
spike
compartment
filter
activated carbon
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/EP2024/072264
Other languages
German (de)
English (en)
Inventor
Florin Kopp
Karl-Martin Berg
Jens Joern
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B Braun Melsungen AG
Original Assignee
B Braun Melsungen AG
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
Application filed by B Braun Melsungen AG filed Critical B Braun Melsungen AG
Publication of WO2025036777A1 publication Critical patent/WO2025036777A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • 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
    • A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • A61M2005/1623—Details of air intake
    • 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
    • A61M2039/1072—Tube connectors; Tube couplings with a septum present in the connector
    • 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 disclosure relates to a medical ventilation device and a medical spike set with a spike equipped with a corresponding ventilation device with cleaning or outgassing protection function
  • fluid line systems such as infusion sets, extracorporeal blood lines from/for dialysis machines or heart-lung machines and similar work equipment are used, which are intended for the guidance of fluids such as blood, aqueous solutions, etc. and/or for the addition of medicinal substances and medicines.
  • a medical fluid line system for example an infusion set, is usually (but not necessarily always) a hose line system with a hose that is at least partially flexible, for example an infusion hose, one proximal end of which (i.e.
  • pointing away from the patient's body can be connected, particularly in the case of an infusion set, to a coupling, for example in the form of a Luer lock, a medical spike/thorn or similar connectors for connection, for example, to an infusion container such as an infusion bag or infusion bottle or to an infusion machine, and the other distal end of which (i.e. facing the patient's body) has either a connection/connection coupling (e.g. constructed according to the Luer system) for an injection catheter or similar patient access or an infusion set-integrated patient access (injection catheter) itself.
  • a coupling for example in the form of a Luer lock
  • a medical spike/thorn or similar connectors for connection, for example, to an infusion container such as an infusion bag or infusion bottle or to an infusion machine, and the other distal end of which (i.e. facing the patient's body) has either a connection/connection coupling (e.g. constructed according to the Luer system) for an injection catheter or similar patient
  • a medical spike is understood by the expert to be a rigid tube (piercing spike) that is tapered at a free end, preferably with a handle formed on it, with either a fluid line system as defined above being firmly connected to the opposite end of the rigid tube or a connection coupling such as a Euer Lock being formed to which, for example, a fluid line system as defined above can be connected.
  • a spike can also be provided with a so-called injection port and/or vent port.
  • such an injection/vent port is intended and designed to be pierced by a syringe needle in order to inject a medical liquid/medicine via a hand-operated syringe, for example.
  • such injection ports are also designed with couplings, in particular according to the Luer principle, in order to connect a syringe or the like directly to them.
  • Medical spike designs with a so-called dry connection also known as a “vial-to-vein closed system drug-transfer device” (CSTD system) already exist), which is then often used to safely transfer potentially dangerous/toxic medications, for example from a syringe into an infusion bag/infusion bottle, without moisture/liquid escaping.
  • the medical spike/thorn is used to transport an infusion solution filled in an infusion container from the infusion container to the patient via an infusion set/infusion set as described above.
  • connectors based on the Luer principle or the CSTD systems mentioned above can be used to connect such an infusion set to the medical spike.
  • the spike is used as a fluid extraction connection on an infusion container, a vent for pressure equalization is required for non-collapsible/collapsible containers, i.e. not in the form of a bag but, for example, in the form of a bottle (rigid container), otherwise the fluid extraction would come to a standstill.
  • the spike is equipped with an (additional) vent port, which is connected to the spike tip and thus to the already connected infusion container either via the fluid extraction channel in the spike or via an air channel extending parallel to it in the spike.
  • the above-mentioned injection port as a vent port, for which a filter is inserted into it, through which ambient air can be sucked in, especially when the rigid infusion container
  • Infusion fluid is withdrawn and the infusion container does not have its own equalization device.
  • CSTD systems Vial-to-Vein Closed System Drug-transfer Devices
  • such a CSTD system has a first coupling adapter part (also referred to as a first dry break connection component) which is provided or designed at a distal end section, for example with a Luer Lock or similar coupling, in order to be connected, for example, to a vial/ampoule containing a medicinal agent or to a fluid line system leading to the patient at a location provided for this purpose (for example on a spike).
  • This first coupling adapter part forms or has a housing with an inner fluid channel which is open in the proximal direction, wherein this proximal opening is closed by means of a membrane or similar seal.
  • the housing of the first coupling adapter part preferably forms an undercut on the inside.
  • the CSTD system cited as an example from this prior art also has a second coupling adapter part (also referred to as a dry break syringe component), consisting of a housing forming an inner undercut, in which a piston with an inner channel is mounted so as to be axially movable.
  • a hollow needle is mounted so as to be relatively axially displaceable in the inner channel, the proximal end of which, remote from the needle tip, is held by an anchor sleeve which rests on the housing or is inserted into a proximal central housing socket.
  • the inner channel On the distal end face of the piston, the inner channel is closed by a membrane or similar seal, with the needle tip initially covered by this seal.
  • elastic locking arms extending longitudinally in the distal and proximal directions are provided on the piston of the second coupling adapter part, the proximal and distal end sections of which are shaped like locking hooks.
  • the anchor sleeve forms a connection, for example for a syringe, at its proximal end region facing away from the needle, which is shown in Figs. 1 and 2 are not shown.
  • the distal Luer Lock connection is connected to the vial or the Fluid line system.
  • the first coupling adapter part is thus connected to the vial/fluid line system in a fluid-tight manner.
  • the syringe mentioned as an example is then coupled to the proximal connection of the second coupling adapter part in a fluid-tight manner.
  • the second coupling adapter part or the piston mounted therein is placed on the membrane of the first coupling adapter part and the housing of the second coupling adapter part is moved towards the housing of the first coupling adapter part until the locking arms are locked into the undercuts of the first and second coupling adapter parts.
  • the needle pierces the membranes of the first and second coupling adapter parts that are already lying against one another and creates a fluid connection between the vial/fluid line system and the syringe
  • the locking arms are disengaged from all undercuts using a button on the second coupling adapter part and the housing of the second coupling adapter part is pulled back in relation to the first coupling adapter part, which simultaneously pulls the needle out of the two membranes that are sealingly adjacent to one another. Only now do the two membranes separate from one another without any liquid being able to drip out of the syringe or the vial/fluid line system.
  • CSTDs An important component of such CSTDs are the two coupling adapter parts (dry connections / dry breaks), which enable the safe transfer of liquid (medicine) and provide a dry seal after the connection has been separated / disconnected, in order to protect the environment from contamination (e.g. through leaks or the formation of drops on the surfaces of the coupling partners / coupling adapter parts after the connection has been separated).
  • These CSTD coupling adapter parts can be installed on various products, not just on a vial and a syringe.
  • the first coupling adapter part described above could also be connected to an injection port of the Luer-lock type of an infusion set of the present type, in particular to a medical spike, via the Luer-lock connection formed thereon, in order to then be able to connect a syringe with the corresponding second coupling adapter part (counter adapter part/dry-break syringe component) to it. It can then also be assumed that both After disconnection, the coupling adapter parts of the CSTD system must be sealed dry and the inner channels of both coupling adapter parts must remain tightly closed.
  • the medical spike is used to, for example, introduce medication from a syringe into a bag/bottle (for example via the injection port) and to transport the infusion fluid from the infusion bag/infusion bottle into the patient's body via the infusion set connected to it.
  • the spike is usually provided with a vent hole for controlled fluid withdrawal from the infusion container, the opening section of which to the environment is in turn equipped with a filter through which air can be sucked in and thus the pressure inside the infusion bag/infusion bottle (infusion container) is equalized during a fluid withdrawal process.
  • filters serve to block dirt particles from the ambient air from entering the infusion container and thus prevent contamination of the fluid contained therein.
  • the same spike equipped with a typical standard filter (e.g. hydrophobic air particle filter)
  • a typical standard filter e.g. hydrophobic air particle filter
  • dangerous/toxic air (or aerosols) within the infusion container can escape through the standard filter into the environment and cause harm to doctors, nurses and pharmacists.
  • the object of the present disclosure is to provide a medical ventilation device and preferably a medical component (equipped or capable of being equipped therewith), in particular a spike, which reduces the risk of contamination of ambient air by gases (aerosols) emitted via a ventilation hole/opening.
  • a medical ventilation device and preferably by a medical component, in particular a spike, with the features of the independent claims.
  • Advantageous aspects of the medical ventilation device and the component (spike) are the subject of the subclaims, which can also be claimed individually or separately from the other aspects.
  • the core of the disclosure therefore consists in equipping the ventilation device with an activated carbon filter or activated carbon material for absorbing dangerous gases instead of or in addition to a standard filter such as e.g.
  • hydrophobic air particle filter which in turn is designed and constructed to retain dirt particles in the ambient air, thereby reducing the overall risk of dangerous/toxic air (aerosols) escaping and at the same time reliably balancing out the internal pressure of a spike or the internal pressure in an (infusion) container connected via the spike.
  • the venting device can already be an integral part of the medical component, such as a medical spike, or can be designed as an attachment, insert or similar additional part which is or can be mounted on/in the medical component.
  • a preferred constructive way to solve the problem of (strong) leakage of dangerous/toxic air (or aerosols) and also leakage of liquid from the ventilation (blind plug effect) is the use of an activated carbon filter, which is installed in the following preferred way:
  • the installation or connection of the activated carbon filter in/on the ventilation device should be designed in such a way that, in addition to the longitudinal air/gas flow through the activated carbon filter that inevitably occurs as a result of a necessary flow path in the longitudinal direction of the ventilation device, the additional possibility is created of superimposing this longitudinal air/gas flow with a cross air/cross gas flow through the activated carbon filter. This extends the flow path within the
  • activated carbon filter/activated carbon material so that a better flow through the activated carbon filter/activated carbon material as a whole and thus a more thorough, effective filtering is possible if dangerous/toxic air (or aerosol) should escape from the medical component, such as spike/thorn, via the ventilation device.
  • the venting device forms a gas flow path in the longitudinal direction of the venting device or in extension to a
  • Vent hole in the medical component wherein the gas flow path includes/comprising at least one filter compartment for receiving activated carbon (activated carbon filter), with a gas inlet for gases coming from the medical component, such as spike, and a gas outlet for these gases into the environment, wherein the gas inlet and the gas outlet are offset from one another both in the longitudinal direction of the flow path and in the transverse direction of the longitudinally extending flow path.
  • activated carbon activated carbon filter
  • the ventilation device forms a longitudinal/ventilation channel which contains at least one filter compartment in which an activated carbon filter or activated carbon material is accommodated.
  • the filter compartment is separated from the ambient air by an outer (channel) transverse wall in which an outer through-opening is formed for the fluid connection of the filter compartment with the environment.
  • the filter compartment is separated from the inner ventilation channel by an inner (channel) transverse wall in which an inner through-opening is also formed for the fluid connection of the filter compartment with the inner ventilation channel.
  • the outer or inner through-opening is arranged radially/transversely offset with respect to the central longitudinal axis of the ventilation channel. In the event that both Through holes are arranged radially offset to the longitudinal axis of the channel, both through holes are additionally offset in the circumferential direction, preferably arranged diametrically opposite each other
  • the ventilation channel has two filter compartments, viewed in the axial-Zlongitudinal direction, which are separated from one another by the inner (channel) transverse wall, in which the inner through-opening is designed decentrally to the central longitudinal axis of the ventilation channel.
  • the compartment closest to the environment is separated from the environment by the outer (channel) transverse wall, in which the outer through-opening is also designed decentrally to the central axis of the ventilation channel, which is thus axially offset from the inner through-opening and (essentially) placed diametrically to the inner through-opening, at least at an angular distance from the inner through-opening.
  • the activated carbon filter is housed in the (outer) compartment closest to the environment and a (standard) air particle filter, preferably of the hydrophobic type, is housed in the other (inner) compartment.
  • a (standard) air particle filter preferably of the hydrophobic type
  • air/gas flows from the medical component first through a hydrophobic standard filter/air filter. If there is liquid in the ventilated (venting) channel, this is blocked by the hydrophobic air filter and the air then passes through the inner passage opening into the outer compartment containing the activated carbon filter. Finally, the air flows laterally through the filter and exits through the outlet, i.e. through the outer passage opening.
  • the ventilation device can have a housing which is preferably divided into two parts in the longitudinal direction of the channel, wherein the first compartment is formed in the first housing part, which is open on a flange side of the first housing part, and the second compartment is formed in the second housing part, which is closed on a flange side of the second housing part by the inner (channel) transverse wall, so that when the second housing part is flanged to the second housing part, the inner (channel) transverse wall closes the first compartment.
  • the second compartment in the second housing part is open on the inner (channel) vent wall and is closed when the venting device is attached/inserted to/into the medical component/spike.
  • connection on the housing of the venting device can be a Luer Lock. It is also conceivable to provide the venting device with a hinged cover that can be pivoted onto its housing, by means of which the external through-opening can be closed, giving the venting device the function of a blind plug.
  • the drip chamber of an infusion set could also be used as the medical component.
  • the spike can be connected to an infusion set using a CSTD system, which is preferably arranged at an end section opposite the spike tip.
  • a tube with additional components can also be connected.
  • the spike could have an integrated or directly connected drip chamber with activated carbon venting as described above.
  • an additional hydrophobic air filter is optional.
  • Figs. 1 and 2 a CSTD system of known structure and known function
  • Fig. 3 shows a venting device according to a first preferred embodiment in combination with a medical spike
  • Fig. 4 shows a venting device according to a second preferred embodiment
  • Fig. 5 shows a spike with (integrated or directly connected) drip chamber with a venting device according to the disclosure.
  • Fig. 1 shows a liquid extraction/transmission device 1 (generally known by the abbreviation CSTD system), which belongs to the state of the art mentioned at the beginning, to which explicit reference is hereby made again.
  • CSTD system liquid extraction/transmission device 1
  • this CSTD system 1 has a first coupling adapter part 3 with a housing 4 in which an axially extending through-fluid channel or fluid channel component 5 is formed or inserted, which is closed on a proximal flange side 7 by means of a membrane 9.
  • the fluid channel component 5 forms together with the housing 4 on the distal end section of the first coupling adapter part 3 a (Luer Lock) coupling 6 with which the first coupling adapter part 3 is/can be connected to a medical device, such as a medical fluid line system or a spike.
  • the housing 4 or the fluid channel component 5 of the first coupling Adapter part 3 also forms a number of locking elements in the form of undercuts 11.
  • the known CSTD system 1 further has a second coupling adapter part 13 with a housing 15, which forms a number of locking elements in the form of undercuts 16, a piston 17 mounted relatively displaceably in the housing 15, a hollow needle 19 mounted relatively displaceably in the piston 17, which is held at its proximal end section (facing away from the needle tip) via a holding anchor or an anchor sleeve 20 in the housing 15 and a number of elastically deformable locking arms 21 which are fixed or formed on the piston 17 and are intended and designed to come into locking engagement with both the undercuts 11 of the first coupling adapter part 3 and the undercuts 16 of the second coupling adapter part 13.
  • the hollow needle 19 in the piston 17 has a (central) through-channel 23 which is closed by a membrane 27 on a distal coupling or flange side 25 of the second coupling adapter part 13.
  • a second coupling adapter part 13 serves to connect, for example, a syringe with an injection port or an infusion set with a spike.
  • Fig. 2 shows the function of the CSTD system 1 according to Fig. 1.
  • the membrane 27 of the second coupling adapter part 13 is pressed against the membrane 9 of the first coupling adapter part 3 in a first movement time window.
  • the housing 15 of the second coupling adapter part 13 is moved further forwards in the direction of the housing 4 of the first coupling adapter part 3, whereby this further forward movement in a second movement time window causes the hollow needle 19 to pierce both adjacent membranes 9, 27 and thereby establish a fluid connection between the through-fluid channel 5 and the hollow needle 19.
  • the movement of the second coupling adapter part 13 in the second movement time window ends with the locking arms 21 engaging in the undercuts 11 and 16 of the two coupling adapter parts 3, 13.
  • the hollow needle 19 is held at its proximal end by the anchor sleeve 20, which at the same time also represents a connection/connector for, for example, a syringe and whose sleeve interior is in fluid connection with the fluid channel 5 of the first coupling adapter part 3 via the hollow needle 19.
  • Fig. 3 now shows a medical component, preferably in the form of a spike 31, on which a (main) connection is arranged, preferably as a first coupling adapter part 3 according to the CSTD principle described above for connecting, for example, an infusion set of known construction (not shown further) and a venting device 33 according to the present disclosure.
  • a medical component preferably in the form of a spike 31, on which a (main) connection is arranged, preferably as a first coupling adapter part 3 according to the CSTD principle described above for connecting, for example, an infusion set of known construction (not shown further) and a venting device 33 according to the present disclosure.
  • the venting device 33 has a housing with a spike connection 35, for example according to the Luer principle, and a cap 37 formed integrally with the connection 35, representing an outer transverse wall, in which an outer venting bore 39 (outlet of a first compartment 41) is formed.
  • the cap 37 and the connection 35 together form a first compartment 41 which is fluidically connected to the outer vent hole 39 and in which an activated carbon filter 43 and a hydrophobic particle filter 45 are accommodated in the longitudinal direction of the vent device, the activated carbon filter 43 being placed closer to the cap 37 than the particle filter 45 located underneath the cap 37.
  • the first compartment 41 is open on the underside of the vent device 33 facing away from the cap 37 and is only closed to the outside by this vent connection when it is mounted on a corresponding vent connection on the medical component / spike 31.
  • the vent connection, the first compartment 41 and the outer vent hole 39 together form a vent channel or vent passage which a flow path is defined along which (filtered) gases/aerosols can escape from the medical component/spike 31 into the environment.
  • the cap 37 forms on its (underside) side facing the compartment 41 a number of spacer ribs against which the activated carbon filter 43 rests, whereby (air) gaps are formed between the spacer ribs, which ensure better flow around and through the activated carbon filter 43.
  • Fig. 3 shows a cover 47 hinged to the housing of the venting device 33, with which the venting hole 39 can be temporarily closed.
  • Fig. 4 shows a venting device 33 according to a second preferred embodiment.
  • the housing of the venting device 33 consists of two housing parts 33a, 33b, wherein the outer housing part 33a is formed with the outer venting hole 39 and the inner housing part 33b located underneath forms the connection 35. Furthermore, the cover 47 is hinged to the outer (upper) housing part 33a, with which the outer venting hole 39 can be closed.
  • the outer (upper) housing part 33a forms the first compartment 41, in which the activated carbon filter 43 is accommodated.
  • the outer (upper) housing part 33a represents the outer transverse wall in which the outer vent hole 39 is introduced.
  • the first compartment 41 is arranged centrally with respect to the connection 35, with the outer vent hole 39 being placed decentrally, i.e. radially offset from the central axis of the connection 35 or the first compartment 41.
  • the first compartment 41 is open on its inner or lower side with respect to the cap 37 and is only closed by the second housing part 33b.
  • the second housing part 33b has an (upper) partition or closing wall 49, which represents an inner transverse wall in which an inner vent hole 51 is formed.
  • vent connection/connection section of the vent device 33 in which the hydrophobic air particle filter 45 is housed, which is fluidly connected to the activated carbon filter 43 via the inner vent hole 51.
  • the vent connection, the inner second particle compartment 53, the inner vent hole 51, the outer first compartment 41 and the outer vent hole 39 together form the vent channel, which defines the flow path.
  • the inner vent hole 51 is preferably also axially offset from the central axis of the connection or the outer first compartment and further preferably on the side diametrically opposite the outer vent hole 39.
  • the flow path within the first compartment 41 does not run exactly coaxially to the central axis of the connection or the first compartment 41, but the flow path has a component in the transverse or radial direction in order to connect the two vent holes 39 and 51 to one another.
  • Fig. 5 shows an alternative medical component in the form of a spike 31 equipped or designed with a drip chamber 55, in which case the venting device 33 is arranged on the drip chamber, whereas the venting connection on the spike can optionally be closed by a blind plug 57.

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

Abstract

L'invention concerne un dispositif de ventilation médicale de préférence sous la forme d'un insert ou d'un module complémentaire, qui comporte une partie de raccordement destinée à être raccordée à un orifice d'injection et/ou de ventilation d'un dispositif ou d'un composant médical et est équipé ou peut être équipé d'au moins un filtre qui est inséré dans ou placé sur le dispositif de ventilation médicale, le filtre étant un filtre à charbon actif ou contenant du charbon actif en tant que matériau filtrant.
PCT/EP2024/072264 2023-08-11 2024-08-06 Perforateur médical avec protection contre l'évacuation de gaz Pending WO2025036777A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023121607.4A DE102023121607A1 (de) 2023-08-11 2023-08-11 Medizinischer Spike mit Ausgasungsschutz
DE102023121607.4 2023-08-11

Publications (1)

Publication Number Publication Date
WO2025036777A1 true WO2025036777A1 (fr) 2025-02-20

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ID=92264139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/072264 Pending WO2025036777A1 (fr) 2023-08-11 2024-08-06 Perforateur médical avec protection contre l'évacuation de gaz

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DE (1) DE102023121607A1 (fr)
WO (1) WO2025036777A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7192423B2 (en) * 2004-11-17 2007-03-20 Cindy Wong Dispensing spike assembly with removable indicia bands
WO2009035384A1 (fr) * 2007-09-11 2009-03-19 Carmel Pharma Ab Dispositif filtre amovible
CN114890497A (zh) * 2022-04-22 2022-08-12 西安交通大学 一种等离子体活化装置及其在医用注射液中的应用
WO2022232405A1 (fr) 2021-04-29 2022-11-03 B. Braun Medical Inc. Dispositif de transfert à système fermé

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN2014MN00187A (fr) * 2003-10-30 2015-08-21 Teva Medical Ltd

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7192423B2 (en) * 2004-11-17 2007-03-20 Cindy Wong Dispensing spike assembly with removable indicia bands
WO2009035384A1 (fr) * 2007-09-11 2009-03-19 Carmel Pharma Ab Dispositif filtre amovible
WO2022232405A1 (fr) 2021-04-29 2022-11-03 B. Braun Medical Inc. Dispositif de transfert à système fermé
CN114890497A (zh) * 2022-04-22 2022-08-12 西安交通大学 一种等离子体活化装置及其在医用注射液中的应用

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Publication number Publication date
DE102023121607A1 (de) 2025-02-13

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