Patent Application
20240374858
The disclosure relates to medical devices, namely to devices for inhalation of volatile anesthetics.
The use of volatile liquids as active substances or volatile liquids containing active substances is well known. One such example is halogen-containing volatile liquids. Halogen-containing volatile liquids are described as useful for inducing and/or maintaining anesthesia (including amnesia, muscle paralysis and/or sedation) and/or analgesia, and, therefore, they may be useful as volatile anesthetics and/or volatile analgesics.
The easiest way for inducing anesthesia using volatile anesthetics is inhalation, that is, inhaling a vapor of the volatile anesthetics by the patients.
Russian patent for invention RU 2720169 C2 published on 24 Apr. 2020 describes an inhalation device called “Green Whistle” and shown in
The web page at https://www.arkhealth.com.au/354221/Penthrox-Combo-Pack-with-AC-Chamber-%28SCHEDULE-4%29/pd.php describes an inhalation system called “Penthrox Combo Pack with AC Chamber”, which comprises “Green Whistle” inhalation device above and the Penthrox drug in the form of a bottle with methoxyflurane.
The “Green Whistle” inhalation device and “Penthrox Combo Pack with AC Chamber” inhalation system are used as follows. A human opens the bottle with methoxyflurane, pours a portion of methoxyflurane into the evaporation chamber through the inlet orifice in the evaporation chamber case, then attaches the filter to the evaporation chamber, brings the device to the mouth so that the outlet orifice of the evaporation chamber case is positioned between the human lips, and alternately inhales and exhales.
A disadvantage of the known inhalation device and the known inhalation system is that, both during preparation for use of the device and after use of the device, vapors of the volatile anesthetic (methoxyflurane) are released into the air of the room where a patient is, and these vapors are inhaled by other people. This is related both to the design of the inhalation device itself, namely, the design of the evaporation chamber, and to the supply of the volatile anesthetic to the evaporation chamber, which is carried out using the usual pouring of the volatile anesthetic from the bottle to the evaporation chamber.
Another disadvantage of the known inhalation device is the impossibility of adjusting the dose of the volatile anesthetic inhaled by a patient. After pouring the volatile anesthetic into the evaporation chamber, the mixture of the volatile anesthetic vapor and air with a very high concentration of the volatile anesthetic in this mixture is immediately formed in the evaporation chamber. A patient suffering from pain tries to relieve pain as soon as possible, and, therefore, at the start of the inhalation, they instinctively inhale the mixture of the volatile anesthetic vapor and air quickly. The specific feature of the halogen-containing volatile anesthetics is that when they enter the human body in excess of a specific dose, it is possible that, instead of anesthesia (that is, a condition when a human is conscious, but at the same time the pain subsides), narcosis occurs, when a human loses consciousness. Therefore, the best option for inhalation with the volatile anesthetic is when a patient inhales small doses of the volatile anesthetic over a specific extended period of time.
The first objective technical problem to be solved is to improve the inhalation device with the aim of developing a device, that prevent the leakage of the volatile anesthetic vapor into the environment and enables adjusting the dose of the volatile anesthetic inhaled by a human, as well as expanding a range of means for the inhalation with the volatile anesthetics, preferably, means for the inhalation with methoxyflurane.
The second objective technical problem to be solved is the improvement of the inhalation system with the aim of developing a system, using of which does not cause the leakage of the volatile anesthetic vapor into the environment, and which enables adjusting the dose of the volatile anesthetic inhaled by a human, as well as expanding a range of means for the inhalation with the volatile anesthetics, preferably, means for the inhalation with methoxyflurane.
The present invention relates to an inhalation device (1) comprising an evaporation chamber (2) and a filter (3) being connected to each other; wherein the filter (3) comprises a case (32) with inlet (33) and at least one outlet (34), in which the filter material (35) is located; wherein the evaporation chamber (2) comprises a hollow case (4) having walls isolating the interior space from the environment, a receiving element for the syringe (5) is configured to be installed with a syringe barrel filled with a volatile anesthetic, a connecting branch (6) connected to the wall of the hollow case (4), an exhalation channel (10) being located inside the hollow case (4) and dividing the interior space of the hollow case (4) into two spaces isolated from each other, such as the evaporation space, in which the evaporation of the volatile anesthetic and the formation of a mixture of the volatile anesthetic vapor and air occur, and the space in the exhalation channel (10) being intended for the flow of the gas exhaled by a human to the filter (3); at least one air valve (7) being configured to pass a portion of the air from the environment into the evaporation space of the hollow case (4) when a human inhales, and being positioned in the hollow case (4) so that the inlet end of the air valve (7) is connected to the walls of the hollow case (4) and the inlet orifice (19) of the air valve (7) is an orifice in the wall of the hollow case (4); an inhalation valve (8) being configured to pass a portion of the mixture of the volatile anesthetic vapor and air from the evaporation space of the hollow case (4) to the interior space of the connecting branch (6), when a human inhales, and being positioned in the hollow case (4) so that the outlet end of the inhalation valve (8) is connected to the wall of the hollow case (4), and the outlet orifice (24) of the inhalation valve (8) is an orifice in the wall of the hollow case (4); the exhalation valve (9) being configured to remove a portion of the gas exhaled by a human from the interior space of the connecting branch (6) into the space of the exhalation channel (10), when a human exhales, and being positioned in the hollow case (4) so that the inlet end of the exhalation valve (9) is connected to the wall of the hollow case (4), and the inlet orifice (27) of the exhalation valve (9) is an orifice in the wall of the hollow case (4); and a filler (11) being located in the evaporation space of the hollow case (4); wherein the receiving element for the syringe (5) is configured in the form of a tube (12) located on the side wall (13) of the hollow case (4) and is configured so that the first end of the tube (12) has an orifice for the syringe barrel (14), the second end of the tube (12) has an end wall (15) with an inlet channel (16) being intended for connecting a tip of the syringe barrel to the evaporation chamber (2) and the passage of the volatile anesthetic from the syringe barrel to the evaporation space of the hollow case (4); the connecting branch (6) is configured in the form of a pipe having a rounded or oval shape in the cross-section; wherein the outlet end with an outlet orifice (28) of the exhalation valve (9) is connected to the inlet end of the exhalation channel (10), an outlet end (31) of the exhalation channel (10) is connected to the inlet (33) of the filter (3); wherein the connecting branch (6), inhalation valve (8), and exhalation valve (9) are mutually spatially arranged so that the inhalation valve (8) and the exhalation valve (9) are positioned next to each other at a short distance from each other; and wherein the mixture of the volatile anesthetic vapor and air exits the outlet orifice (24) of the inhalation valve (8) and passes to the interior space of the connecting branch (6); and the gas exhaled by a human from the interior space of the connecting branch (6) enters the inlet (27) of the exhalation valve (9).
In one aspect, the inhalation device (1) can comprise a mouthpiece to be mounted on the connecting branch (6) or inserted into the connecting branch (6).
In one aspect, a portion of the side wall (13) of the hollow case (4), on which the receiving element for the syringe (5) is positioned, can be configured in the form of a platform with a flat surface (36) being intended for the contacting with a lateral side of a syringe barrel flange with a flat surface.
In one aspect, the side wall (13) of the hollow case (4), on which the receiving element for the syringe (5) is positioned, can comprise a transverse groove with a rounded surface (37) being intended for inserting the lateral side of the syringe barrel flange with the rounded surface in it.
In one aspect, the inhalation device (1) can comprise a button (41) being connected to the side wall (13) of the hollow case (4) and being able to move relatively to the side wall (13) of the hollow case (4), and being configured to drive a syringe piston; wherein the button (41) is configured to comprise at least one longitudinal connecting ledge (42) and at least one connecting groove (43) on the lateral side, and wherein the side wall (13) of the hollow case (4) comprises at least one longitudinal connecting groove (44) and at least one longitudinal connecting ledge (45); wherein the button (41) is connected to the side wall (13) of the hollow case (4) using the longitudinal connecting ledge (42), the connecting groove (43), the longitudinal connecting groove (44) and the longitudinal connecting ledge (45) so that the longitudinal connecting ledge (42) is spatially positioned in the longitudinal connecting groove (44), and the longitudinal connecting ledge (45) is spatially positioned in the connecting groove (43).
In one aspect, the button (41) can comprise at least one locking element (46), wherein each locking element (46) comprises a contact ledge (47); wherein a tube (12) of the receiving element for the syringe (5) comprises at least one series of the locking ledges (48) on the outer surface of the tube (12) of the receiving element for the syringe (5); wherein the locking element (46) and the series of the locking ledges (48) are configured to enable the contact ledge (47) to contact with the locking ledges (48), when the button (41) moves relatively to the side wall (13) of the hollow case (4).
In one aspect, the contact ledge (47) and the locking ledges (48) can be configured to enable the move of the button (41) relatively to the side wall (13) of the hollow case (4) in one direction only.
In one aspect, the button (41) can comprise a rod (49).
In one aspect, the rod (49) can have a cross-shaped cross-section.
In one aspect, the evaporation chamber (2) and the filter (3) can have a detachable connection with each other.
In one aspect, the volatile anesthetic is methoxyflurane.
The present invention also relates to an inhalation system comprising an inhalation device (1) and a syringe filled with the volatile anesthetic; wherein an inhalation device (1) comprises an evaporation chamber (2) and a filter (3) being connected to each other; wherein the filter (3) is configured to comprise a case (32) with inlet (33) and at least one outlet (34), in which the filter material (35) being located; wherein the evaporation chamber (2) is configured to comprise a hollow case (4) having walls isolating the interior space from the environment, a receiving element for the syringe (5) is configured to be installed with a syringe barrel filled with a volatile anesthetic, a connecting branch (6) being connected to the wall of the hollow case (4), an exhalation channel (10) being located inside the hollow case (4) and dividing the interior space of the hollow case (4) into two spaces isolated from each other, such as the evaporation space, in which the evaporation of the volatile anesthetic and the formation of a mixture of the volatile anesthetic vapor and air occur, and the space in the exhalation channel (10) being intended for the flow of the gas exhaled by a human to the filter (3); at least one air valve (7) is configured to pass a portion of the air from the environment into the evaporation space of the hollow case (4) when a human inhales, and being positioned in the hollow case (4) so that the inlet end of the air valve (7) being connected to the walls of the hollow case (4) and the inlet orifice (19) of the air valve (7) being an orifice in the wall of the hollow case (4); an inhalation valve (8) being configured to pass a portion of the mixture of the volatile anesthetic vapor and air from the evaporation space of the hollow case (4) to the interior space of the connecting branch (6), when a human inhales, and being positioned in the hollow case (4) so that the outlet end of the inhalation valve (8) is connected to the wall of the hollow case (4), and the outlet orifice (24) of the inhalation valve (8) is an orifice in the wall of the hollow case (4); the exhalation valve (9) being configured to remove a portion of the gas exhaled by a human from the interior space of the connecting branch (6) into the space of the exhalation channel (10), when a human exhales, and being positioned in the hollow case (4) so that the inlet end of the exhalation valve (9) is connected to the wall of the hollow case (4), and the inlet orifice (27) of the exhalation valve (9) is an orifice in the wall of the hollow case (4); and a filler (11) being located in the evaporation space of the hollow case (4); wherein the receiving element for the syringe (5) is configured in the form of a tube (12) located on the side wall (13) of the hollow case (4) and is configured so that the first end of the tube (12) has an orifice for the syringe barrel (14), the second end of the tube (12) has an end wall (15) with an inlet channel (16) being intended for connecting a tip of the syringe barrel to the evaporation chamber (2) and the passage of the volatile anesthetic from the syringe barrel to the evaporation space of the hollow case (4); the connecting branch (6) is configured in the form of a pipe having a rounded or oval shape in the cross-section; wherein the outlet end with an outlet orifice (28) of the exhalation valve (9) is connected to the inlet end of the exhalation channel (10), an outlet end (31) of the exhalation channel (10) is connected to the inlet (33) of the filter (3); wherein the connecting branch (6), inhalation valve (8), and exhalation valve (9) are mutually spatially arranged so that the inhalation valve (8) and the exhalation valve (9) are positioned next to each other at a short distance from each other; and wherein the mixture of the volatile anesthetic vapor and air exits the outlet orifice (24) of the inhalation valve (8) and passes to the interior space of the connecting branch (6); and the gas exhaled by a human from the interior space of the connecting branch (6) enters the inlet (27) of the exhalation valve (9).
In one aspect, the inhalation device (1) in the inhalation system can comprise a mouthpiece to be mounted on the connecting branch (6) or inserted into the connecting branch (6).
In one aspect, a portion of the side wall (13) of the hollow case (4), on which the receiving element for the syringe (5) is positioned, can be configured in the form of a platform with a flat surface (36) being intended for the contacting with a lateral side of a syringe barrel flange with a flat surface.
In one aspect, the side wall (13) of the hollow case (4), on which the receiving element for the syringe (5) is positioned, can comprise a transverse groove with a rounded surface (37) being intended for inserting the lateral side of the syringe barrel flange with the rounded surface in it.
In one aspect, the inhalation device (1) in the inhalation system can comprise a button (41) being connected to the side wall (13) of the hollow case (4) and being able to move relatively to the side wall (13) of the hollow case (4), and being configured to drive a syringe piston; wherein the button (41) is configured to comprise at least one longitudinal connecting ledge (42) and at least one connecting groove (43) on the lateral side, and wherein the side wall (13) of the hollow case (4) comprises at least one longitudinal connecting groove (44) and at least one longitudinal connecting ledge (45); wherein the button (41) is connected to the side wall (13) of the hollow case (4) using the longitudinal connecting ledge (42), the connecting groove (43), the longitudinal connecting groove (44) and the longitudinal connecting ledge (45) so that the longitudinal connecting ledge (42) is spatially positioned in the longitudinal connecting groove (44), and the longitudinal connecting ledge (45) is spatially positioned in the connecting groove (43).
In one aspect, the button (41) can comprise at least one locking element (46), wherein each locking element (46) comprises a contact ledge (47); wherein a tube (12) of the receiving element for the syringe (5) comprises at least one series of the locking ledges (48) on the outer surface of the tube (12) of the receiving element for the syringe (5); wherein the locking element (46) and the series of the locking ledges (48) are configured to enable the contact ledge (47) to contact with the locking ledges (48), when the button (41) moves relatively to the side wall (13) of the hollow case (4).
In one aspect, the contact ledge (47) and the locking ledges (48) can be configured to enable the move of the button (41) relatively to the side wall (13) of the hollow case (4) in one direction only.
In one aspect, the syringe filled with the volatile anesthetic can comprise a syringe barrel, a piston positioned inside the syringe barrel, and a rod connected to the piston.
In one aspect, the syringe filled with the volatile anesthetic can comprise the syringe barrel and the piston positioned inside the syringe barrel, wherein the button (41) must comprise the rod (49) configured to drive the piston.
In one aspect, the rod (49) can have a cross-shaped cross-section.
In one aspect, the evaporation chamber (2) and the filter (3) can have a detachable connection with each other.
In one aspect, the inhalation system can comprise a sealed packaging comprising the inhalation device (1) and the syringe filled with the volatile anesthetic.
In one aspect, the inhalation system can comprise a first individual packaging comprising the inhalation device (1), comprise a second individual packaging comprising the syringe filled with the volatile anesthetic, and comprise a sealed packaging that comprise the first individual packaging comprising the inhalation device (1), and the second individual packaging comprising the syringe filled with the volatile anesthetic.
In one aspect, the syringe filled with the volatile anesthetic can comprise a protective cap mounted on the tip of the syringe barrel.
In one aspect, the syringe filled with the volatile anesthetic can be installed into the receiving element for the syringe (5).
In one aspect, the volatile anesthetic is methoxyflurane.
Hereinafter, the possible examples of the embodiments of the present disclosure are shown below using drawings in
Herein, the terms “proximal” and “distal” are used.
The term “proximal” is used in the document to define an end of any element of the inhalation device (1) that, during the inhalation, is closer to the person performing the inhalation, and accordingly, the term “distal” is used to define an end of any element of the inhalation device (1), that, during the inhalation, is further from the person performing the inhalation.
In addition, the term “proximal” is used in the document to define an end of the syringe element, that, during the injection, is usually closer to the person performing the injection, and, accordingly, the term “distal” is used to define an end of the syringe element, that, during the injection, is further from the person performing the injection.
Herein, the term “syringe” means, unless otherwise specified, a medical syringe that is commonly used to perform injections. A state-of-the-art medical syringe consists of the basic elements, such as a syringe barrel, a piston positioned inside the syringe barrel, and a rod connected to the piston. The syringe barrel of the state-of-the-art medical syringe is usually configured to:
The flange can be configured in two forms, the first form being a disc, and the second form being a truncated disc with two lateral sides with a rounded surface and two parallel lateral sides with a flat surface.
The piston of the state-of-the-art medical syringe is positioned inside the syringe barrel and configured to have a cylindrical shape. The lateral side of the piston comprises sealing elements that enables the piston to fit tightly to the interior wall of the syringe barrel.
The rod is configured to transmit the movement from a human finger to the piston and to drive the piston. The distal end of the rod is connected to the piston. The proximal end of the rod comprises a finger rest configured to absorb the force from a human finger.
The syringe to be used to perform the inhalation using the inhalation device according to the first disclosure has a specific feature, such as being filled with the volatile anesthetic.
It is necessary to note that:
However, according to one of the embodiments of the second disclosure, the inhalation system comprises the syringe filled with the volatile anesthetic and configured to have the syringe barrel and the piston positioned inside the syringe barrel, wherein an element of the injection device (1), such as the button (41), must be configured to comprise the rod (49) intended to drive the piston. Accordingly, according to one of the embodiments of the first disclosure, the inhalation device is configured to enable using, inside the inhalation device, the syringe filled with the volatile anesthetic and configured to comprise the syringe barrel and the piston positioned in the syringe barrel, and to achieve this, the button (41) must be configured to comprise the rod (49) intended to drive the piston.
The first disclosure is the inhalation device (1).
The embodiments of the inhalation device (1) according to the first disclosure are shown in
The inhalation device (1) according to the preferred embodiment of the first disclosure comprises the evaporation chamber (2) and the filter (3) connected to each other.
The evaporation chamber (2) is intended for vaporization of the volatile anesthetic, producing the mixture of the volatile anesthetic vapor and air, and feeding the mixture of the volatile anesthetic vapor and air to a human mouth. The evaporation chamber (2) has a complex structure, therefore, to better understand the structure of the evaporation chamber (2), the evaporation chamber (2) is shown in Figures without the connecting branch (6), without the end wall (17) and without the filter (3). The evaporation chamber (2) comprises the hollow case (4), the receiving element for the syringe (5) and the connecting branch (6). Two air valves (7), the inhalation valve (8), the exhalation valve (9), the exhalation channel (10), and the filler (11) are positioned inside the hollow case (4).
The hollow case (4) has walls that isolate the interior space from the environment. The exhalation channel (10) positioned in the hollow case (4) divides the interior space of the hollow case (4) into two spaces isolated from each other, the first space being the evaporation space, in which the evaporation of the volatile anesthetic and the formation of the mixture of the volatile anesthetic vapor and air occur, and the second space being the space in the exhalation channel (10) that is intended for the flow of the gas exhaled by a human to the filter (3).
The receiving element for the syringe (5) is configured to be installed with the syringe barrel filled with the volatile anesthetic and to feed the volatile anesthetic from the syringe to the evaporation space of the hollow case (4). The receiving element for the syringe (5) is configured in the form of a tube (12) positioned on the side wall (13) of the hollow case (4). The first end of the tube (12) has an orifice for the syringe barrel (14), and the second end of the tube (12) has an end wall (15) with the inlet channel (16). The end wall (15) is simultaneously the wall of the hollow case (4). The inlet channel (16) is intended to connect the tip of the syringe barrel to the evaporation chamber (2) and enable the flow of the volatile anesthetic from the syringe barrel to the evaporation space of the hollow case (4).
The connecting branch (6) is connected to the wall of the hollow case (4). The function of the connecting branch (6) is to feed the mixture of the volatile anesthetic vapor and air from the evaporation space of the hollow case (4) into a human mouth, and to remove the gas exhaled by a human from the human mouth into the space of the exhalation channel (10). The drawings show the embodiment of the connecting branch (6) position on the end wall (17) of the hollow case (4). For one skilled in the art, it is apparent that a different position of the connecting branch (6) at a different place on the wall of the hollow case (4) is possible. The connecting branch (6) is configured in the form of a tube, that can have a rounded or oval cross-section.
The air valves (7) are configured to feed a portion of the air from the environment into the evaporation space of the hollow case (4) when a human inhales. Each of the air valves (7) comprises a case (18) with an inlet end with an inlet orifice (19) and an outlet end with an outlet orifice (20), and a membrane (21) positioned inside the case (18). The inlet ends of the air valves (7) are connected to the walls of the hollow case (4) so that the inlet orifice (19) of each air valve (7) is an orifice in the wall of the hollow case (4), wherein the outlet end with the outlet orifice (20) of each air valve (7) are positioned inside the evaporation space of the hollow case (4). The drawings show an embodiment of the device with two air valves (7), and the arrangement of the air valves (7) that enable the inlet orifice (19) of each air valve (7) to be an orifice on the end wall (17) of the hollow case (4). It is apparent to one skilled in the art that it is possible to design the device with a different number of the air valves (7), such as with one air valve or with three air valves. It is also apparent to one skilled in the art that one or more air valves (7) can be positioned elsewhere on the wall of the hollow case (4).
The inhalation valve (8) is intended to feed a portion of the mixture of the volatile anesthetic vapor and air from the evaporation space of the hollow case (4) to the interior space of the connecting branch (6), when a human inhales. The inhalation valve (8) comprises a case (22) with an inlet end with an inlet orifice (23) and an outlet end with an outlet orifice (24), and a membrane (25) positioned inside the case (22). The outlet end of the inhalation valve (8) is connected to the wall of the hollow case (4) so that the outlet orifice (24) of the inhalation valve (8) is an orifice in the wall of the hollow case (4), and the inlet end is connected to the inlet orifice (23) of the inhalation valve (8) located in the evaporation space of the hollow case (4).
The exhalation valve (9) is intended to remove a portion of the gas exhaled by a human, when a human exhales, from the interior space of the connecting branch (6) into the space of the exhalation channel (10). The exhalation valve (9) comprises a case (26) with an inlet end with an inlet orifice (27) and an outlet end with an outlet orifice (28), and a membrane (29) positioned in the case (26). The inlet end of the exhalation valve (9) is connected to the wall of the hollow case (4) so that the inlet orifice (27) of the exhalation valve (9) is an orifice in the wall of the hollow case (4). The outlet end with the outlet orifice (28) of the exhalation valve (9) is connected to the inlet end of the exhalation channel (10).
The connecting branch (6), the inhalation valve (8) and the exhalation valve (9) are mutually spatially arranged such that the inhalation valve (8) and the exhalation valve (9) are positioned next to each other at a short distance from each other, and at the same time, the mixture of the volatile anesthetic vapor and air flows from the outlet orifice (24) of the inhalation valve (8) to the interior space of the connecting branch (6), and the gas exhaled by a human flows from the interior space of the connecting branch (6) to the inlet orifice (27) of the exhalation valve (9).
The exhalation channel (10) is configured in the form of a pipe comprising an inlet end (30) and an outlet end (31) and intended for the flow of the gas exhaled by a human to the filter (3). The exhalation channel (10) is positioned inside the hollow case so that the inlet end (30) of the exhalation channel (10) is connected to the outlet end with the outlet orifice (28) of the exhalation valve (9), wherein the outlet end (31) of the exhalation channel (10) is connected to the inlet of the filter (3).
The filter (3) is intended to clean the gas exhaled by a human from the volatile anesthetic vapors, and comprises a case (32), inside which the filter material (35) is positioned and adsorbs the volatile anesthetic vapors. Activated carbon, for example, can be used as the filter material. The case (32) of the filter (3) is connected to the hollow case (4) of the evaporation chamber (2). The connection of the case (32) of the filter (3) and the hollow case (4) can be fixed or detachable. When the connection of the case (32) of the filter (3) and the hollow case (4) is fixed, the device according to the present disclosure can be used once. When the connection of the case (32) of the filter (3) and the hollow case (4) is detachable, the filter (3) can be replaced, which allows using the device according to the present disclosure multiple times. The case (32) of the filter (3) comprises an inlet (33) connected to the outlet end (31) of the exhalation channel (10), and one or more outlet orifices (34), through which air purified from the volatile anesthetic vapor exits into the environment.
The filler (11) is positioned in the evaporation space of the hollow case (4). The filler (11) is configured of a porous material, wherein a layer of the material has thickness from 0.5 to several millimeters, for example, the material being a fibrous polypropylene material or a fibrous polyester material; and the filler (11) is configured to accelerate the evaporation of the volatile anesthetic fed to the evaporation space of the hollow case (4). Several layers of the filler (11) can be used.
The second disclosure is the inhalation system.
The inhalation system according to the preferred embodiment of the second disclosure includes the device (1) according to the preferred embodiment of the first disclosure and the syringe filled with the volatile anesthetic. The device (1) according to the preferred embodiment of the first disclosure comprises the evaporation chamber (2) and the filter (3). The evaporation chamber (2) is intended for vaporization of the volatile anesthetic, producing the mixture of the volatile anesthetic vapor and air, and feeding the mixture of the volatile anesthetic vapor and air to the human mouth. The evaporation chamber (2) comprises the hollow case (4), the receiving element for the syringe (5) and the connecting branch (6). Two air valves (7), the inhalation valve (8), the exhalation valve (9), the exhalation channel (10), and the filler (11) are positioned inside the hollow case (4).
The hollow case (4) has walls that isolate the interior space from the environment. The exhalation channel (10) positioned inside the hollow case (4) divides the interior space of the hollow case (4) into two spaces isolated from each other, wherein the first space being the evaporation space, in which the evaporation of the volatile anesthetic and the formation of the mixture of the volatile anesthetic vapor and air occur, and the second space being the space in the exhalation channel (10) that is intended for the flow of the gas exhaled by a human to the filter (3).
The receiving element for the syringe (5) is configured to be installed with the syringe barrel filled with the volatile anesthetic and to feed the volatile anesthetic from the syringe to the evaporation space of the hollow case (4). The receiving element for the syringe (5) is configured in the form of a tube (12) positioned on the side wall (13) of the hollow case (4). The first end of the tube (12) has an orifice for the syringe barrel (14), and the second end of the tube (12) has an end wall (15) with the inlet channel (16). The end wall (15) is simultaneously the wall of the hollow case (4). The inlet channel (16) is intended to connect the tip of the syringe barrel to the evaporation chamber (2) and enable the volatile anesthetic to flow from the syringe barrel to the evaporation space of the hollow case (4).
The connecting branch (6) is connected to the wall of the hollow case (4). The function of the connecting branch (6) is to feed the mixture of the volatile anesthetic vapor and air from the evaporation space of the hollow case (4) into a human mouth, and to remove the gas exhaled by a human from the human mouth into the space of the exhalation channel (10). The drawings show the embodiment of the arrangement of the connecting branch (6) on the end wall (17) of the hollow case (4). For one skilled in the art, it is apparent that the connecting branch (6) can have a different position at a different place on the wall of the hollow case (4). The connecting branch (6) is configured in the form of a tube, that can have a rounded or oval cross-section.
The air valves (7) are intended to feed a portion of the air from the environment into the evaporation space of the hollow case (4), when a human inhales. Each of the air valves (7) comprises a case (18) with an inlet end with an inlet orifice (19) and an outlet end with an outlet orifice (20), and a membrane (21) positioned inside the case (18). The inlet ends of the air valves (7) are connected to the walls of the hollow case (4) so that the inlet orifice (19) of each air valve (7) is an orifice in the wall of the hollow case (4), wherein the outlet end with the outlet orifice (20) of each air valve (7) are positioned inside the evaporation space of the hollow case (4). The drawings show an embodiment of the device with two air valves (7), and the arrangement of the air valves (7) that enable the inlet orifice (19) of each air valve (7) to be an orifice on the end wall (17) of the hollow case (4). It is apparent to one skilled in the art that the device can be configured to have a different number of the air valves (7), such as one air valve or with three air valves. It is also apparent to one skilled in the art that one or more air valves (7) can be positioned elsewhere on the wall of the hollow case (4).
The inhalation valve (8) is intended to feed a portion of the mixture of the volatile anesthetic vapor and air from the evaporation space of the hollow case (4) to the interior space of the connecting branch (6), when a human inhales. The inhalation valve (8) comprises a case (22) with an inlet end with an inlet orifice (23) and an outlet end with an outlet orifice (24), and a membrane (25) positioned inside the case (22). The outlet end of the inhalation valve (8) is connected to the wall of the hollow case (4) so that the outlet orifice (24) of the inhalation valve (8) is an orifice in the wall of the hollow case (4), and the inlet end is connected to the inlet orifice (23) of the inhalation valve (8) positioned inside the evaporation space of the hollow case (4).
The exhalation valve (9) is intended to remove a portion of the gas exhaled by a human, when a human exhales, from the interior space of the connecting branch (6) into the space of the exhalation channel (10). The exhalation valve (9) comprises a case (26) with an inlet end with an inlet orifice (27) and an outlet end with an outlet orifice (28), and a membrane (29) positioned inside the case (26). The inlet end of the exhalation valve (9) is connected to the wall of the hollow case (4) so that the inlet orifice (27) of the exhalation valve (9) is an orifice in the wall of the hollow case (4). The outlet end with the outlet orifice (28) of the exhalation valve (9) is connected to the inlet end of the exhalation channel (10).
The connecting branch (6), the inhalation valve (8) and the exhalation valve (9) are mutually spatially arranged such that the inhalation valve (8) and the exhalation valve (9) are positioned next to each other at a short distance from each other, and at the same time, the mixture of the volatile anesthetic vapor and air flows from the outlet orifice (24) of the inhalation valve (8) to the interior space of the connecting branch (6), and the gas exhaled by a human flows from the interior space of the connecting branch (6) to the inlet orifice (27) of the exhalation valve (9).
The exhalation channel (10) is configured in the form of a pipe comprising an inlet end (30) and an outlet end (31) and is intended for the flow of the gas exhaled by a human to the filter (3). The exhalation channel (10) is positioned inside the hollow case so that the inlet end (30) of the exhalation channel (10) is connected to the outlet end with the outlet orifice (28) of the exhalation valve (9), wherein the outlet end (31) of the exhalation channel (10) is connected to the inlet of the filter (3).
The filter (3) is intended to clean the gas exhaled by a human from the volatile anesthetic vapors, and comprises a case (32), inside which the filter material (35) is positioned and adsorbs the volatile anesthetic vapors. Activated carbon, for example, can be used as the filter material (35). The case (32) of the filter (3) is connected to the hollow case (4) of the evaporation chamber (2). The connection of the case (32) of the filter (3) and the hollow case (4) can be fixed or detachable. When the connection of the case (32) of the filter (3) and the hollow case (4) is fixed, the inhalation device according to the first disclosure can be used once. When the connection of the case (32) of the filter (3) and the hollow case (4) is detachable, the filter (3) can be replaced, which allows using the device according to the present disclosure multiple times. The case (32) of the filter (3) comprises an inlet (33) connected to the outlet end (31) of the exhalation channel (10), and one or more outlet orifices (34), through which air purified from the volatile anesthetic vapor exits into the environment.
The filler (11) is positioned in the evaporation space of the hollow case (4). The filler (11) is configured of a porous material wherein a layer of the material has thickness from 0.5 to several millimeters, for example, the material being a fibrous polypropylene material or a fibrous polyester material; and the filler (11) is configured to accelerate the evaporation of the volatile anesthetic fed into the evaporation space of the hollow case (4). Several layers of the filler (11) can be used.
Any conventional syringe that is used for injections in medicine and that comprises a syringe barrel, a piston positioned inside the syringe barrel, and a rod connected to the piston, can be used as the syringe filled with the volatile anesthetic in the inhalation system, for example, a syringe having a volume of 2 ml or 5 ml. Methoxyflurane, that is a substance being a member of the class of the halogen-containing anesthetics, is preferably used as the volatile anesthetic.
An example of the use of the inhalation device (1) according to the preferred embodiment of the first disclosure and the use of the inhalation system according to the preferred embodiment of the second disclosure, when performing the inhalation, is described in Example 1.
A human takes the syringe filled with the volatile anesthetic, such as methoxyflurane, and inserts it in the receiving element for the syringe (5) so that the syringe barrel fits into the syringe barrel orifice (14) and the tip of the syringe barrel fits into the inlet channel (16).
After inserting the syringe filled with methoxyflurane into the inhalation device (1), a human takes the inhalation device (1) in the hand, and presses the finger rest on the rod, wherein a portion of methoxyflurane enters the evaporation chamber (2) through the tip of the syringe and the inlet channel (16), such as a portion of methoxyflurane enters the filler (11) positioned in the evaporation space of the hollow case (4). Due to the branched surface area of the filler material (11), rapid evaporation of methoxyflurane and the formation of methoxyflurane vapor occurs, wherein the methoxyflurane vapor enters the volume of the evaporation space of the hollow case (4), where methoxyflurane vapor mixes with air, and a mixture of the methoxyflurane vapor and air is formed in the evaporation space of the hollow case (4).
After that, a human brings the device to the mouth so that the end of the connecting branch (6) with the open orifice is positioned between the human lips, and alternately inhales and exhales.
During the phase of the inhalation, that a human performs, the following occurs in the inhalation device (1).
When a human inhales, a rarefaction occurs in the interior space of the connecting branch (6) leading to the opening of the inhalation valve (8). The air valves (7) open simultaneously with the inhalation valve (8). It happens in the following way. Under the rarefaction in the interior space of the connecting branch (6), the membrane (25) of the inhalation valve (8) deflects and allows the mixture of the methoxyflurane vapor and air to flow from the evaporation space of the hollow case (4) through the case (22) of the inhalation valve (8) and the outlet orifice (24) of the inhalation valve (8) into the interior space of the connecting branch (6). Further, during the inhalation, the mixture of the methoxyflurane vapor and air flows from the interior space of the connecting branch (6) into the human mouth and then the human lungs. When the inhalation valve (8) is opened, rarefaction also occurs in the evaporation space of the hollow case (4); under this rarefaction, the membranes (21) of the air valves (7) deflect and allow a portion of the air to flow from the environment through the inlet orifices (19) of the air valves (7) and cases (18) of the air valves (7) into the evaporation space of the hollow case (4). The portion of the air that entered the evaporation space of the hollow case (4) during the inhalation, due to the movement of this air, quickly mixes with the methoxyflurane vapor to form a mixture of methoxyflurane vapor and air.
The exhalation valve (9) is closed during the inhalation phase.
During the phase of exhalation, performed by a human, the following occurs in the inhalation device (1). When a human exhales, pressure arises in the interior space of the connecting branch (6) leading to the opening of the inhalation valve (9). It happens in the following way. Under the pressure in the interior space of the connecting branch (6), the membrane (29) of the inhalation valve (9) deflects and allows the gas exhaled by a human to flow from the interior space of the connecting branch (6) through the inlet orifice (27) of the inhalation valve (9) and the case (26) of the inhalation valve (9) into the space of the exhalation channel (10). When the exhalation valve (9) opens, pressure also arises in the space of the exhalation channel (10); under this pressure, the gas exhaled by a human, flows from the space of the exhalation channel (10) through the inlet (33) of the filter (3) into the case (32) of the filter (3), where it passes through a layer of the filter material (35). The gas exhaled by a human during the exhalation is essentially the air with a small amount of the methoxyflurane vapor. The filter material (35) cleans the air from methoxyflurane vapor, and the methoxyflurane vapor is absorbed by the filter material (35). The purified air exits through the outlet orifices (34) in the case (32) of the filter (3) to the environment.
The air valves (7) and the inhalation valve (8) are closed during the phase of the exhalation.
During the inhalation process, a human periodically, with specific time periods, presses the rod, injects a portion of methoxyflurane into the evaporation chamber (2), and inhales and exhales.
According to one of the embodiments of the second disclosure, the inhalation system can comprise the syringe filled with the volatile anesthetic that comprises protective cap mounted on the tip of the syringe barrel. The protective cap is intended to prevent leakage of the volatile anesthetic from the syringe during transportation and storage of the inhalation system until its use. In this embodiment of the injection kit, the injection kit is used for the inhalation similarly to Example 1 above, however, before inserting the syringe filled with the volatile anesthetic (methoxyflurane) into the inhalation device (1), a human removes the protective cap from the tip of the syringe barrel.
According to one of the embodiments of the present disclosure, the evaporation chamber (2) and the filter (3) in the inhalation device (1) can be configured to have detachable connection with each other. This arrangement of the said elements of the inhalation device (1) allows using the inhalation device (1) multiple times. The inhalation device (1) and the inhalation system according to this embodiment of the present disclosure are used for the inhalation similarly to Example 1, however, after the inhalation process is completed, a human further removes the used syringe from the inhalation device (1), then replaces the used filter to a filter that has not yet been used.
To achieve this, a human detaches the filter used and the evaporation chamber from each other, and then attaches a filter that has not yet been used to the evaporation chamber. After that, the inhalation device (1) is ready for the next use for the inhalation. It is apparent and clear to one skilled in the art, that in this embodiment of the second disclosure, the inhalation system can comprise one more or more separate filters (3) not connected to the inhalation device (1) and comprise two or more syringes filled with the volatile anesthetic (methoxyflurane).
According to one of the embodiments of the present disclosure, the inhalation device (1) can comprise a mouthpiece mounted on the connecting branch (6) or inserted into the connecting branch (6). A mouthpiece of any known design can be used as the mouthpiece. Generally, mouthpieces are ergonomically shaped, as they are configured to fit into the human mouth and pass something into the human mouth. The presence of the mouthpiece in the inhalation device (1) makes the inhalation process more pleasant for a human. The inhalation device (1) according to this embodiment of the first disclosure and the inhalation system according to this embodiment of the second disclosure are used for the inhalation similarly to Example 1.
According to one of the embodiments of the present disclosure, in the inhalation device (1), a portion of the side wall (13) of the hollow case (4), on which the receiving element of the syringe (5) is positioned, can be configured in the form of the platform with the flat surface (36) intended to contact with the lateral side of the syringe barrel flange in the form of the cut disc. One of the issues of using the syringe filled with the volatile anesthetic is to securely fix the syringe barrel inside the receiving element of the syringe (5) and prevent the syringe barrel from popping out of the receiving element of the syringe (5) during the inhalation. This issue is caused by possible rotation of the syringe barrel during the inhalation process, which causes the tip of the syringe barrel to pop out of the inlet channel (16), to which the tip of the syringe barrel is connected. Some syringes, such as the 5 mL syringe (as shown in
According to one of the embodiments of the present disclosure, the side wall (13) of the hollow case (4), on which the receiving element for the syringe (5) is positioned, of the inhalation device (1) can comprise a transverse groove with the rounded surface (37) configured to be inserted with the lateral side of the syringe barrel flange with the rounded surface. The transverse groove has a wall with a rounded surface and has side walls with a flat surface. Design of the transverse groove (37) on the side wall (13) of the hollow case (4) allows fixing the syringe that has the disk shape of the syringe barrel flange. This is the shape of the syringe barrel flange of the 2 ml syringe (as shown in
According to one of the embodiments of the present disclosure, the inhalation device (1) can comprise the button (41) connected to the side wall (13) of the hollow case (4), able to move relative to the side wall (13) of the hollow case (4) and configured to drive the piston of the syringe. One of the issues with using the syringe filled with the volatile anesthetic is that in small volume syringes, such as the 2 ml syringe, the finger rest positioned at the proximal end of the rod has a small area, resulting in the frequent release of the finger from the finger rest during the inhalation process. The button (41) has a much larger area compared to the area of the finger rest, which prevents the finger from popping off during the inhalation process. The button (41) is connected to the side wall (13) of the hollow case (4) and is able to move in such a way that the button (41) contacts the finger rest, and when the finger rests against the button (41), pressure is transferred to the finger rest. Accordingly, when the button (41) moves under the finger pressure, the rod connected to the piston moves, and the piston moves. To connect the button (41) with the side wall (13) of the hollow case (4), the lateral side of the button (41) and the side wall (13) of the hollow case (4) comprise the following elements:
It is clear to one skilled in the art that the number of the connecting elements, such as the longitudinal connecting ledge (42), the connecting groove (43), the longitudinal connecting groove (44) and the longitudinal connecting ledge (45), can be different. For example, there can be provided one longitudinal connecting ledge (42), one connecting groove (43), one longitudinal connecting groove (44) and one longitudinal connecting ledge (45).
The button (41) is connected to the side wall (13) of the hollow case (4) using the longitudinal connecting ledges (42), connecting grooves (43), longitudinal connecting grooves (44) and longitudinal connecting ledges (45) so that the longitudinal connecting ledge (42) is spatially positioned in the longitudinal connecting groove (44), and the longitudinal connecting ledge (45) is spatially positioned in the connecting groove (43). Longitudinal connecting ledges (42) and longitudinal connecting ledges (45) function as guides along which the button (41) moves.
The use of the inhalation device (1) according to said embodiment of the first disclosure and the inhalation system according to said embodiment of the second disclosure, when performing the inhalation, is described in Example 2.
A human lifts the button (41) mounted on the hollow case (4) so that there is enough space near the side wall (13) of the hollow case (4) to install the syringe filled with the volatile anesthetic, such as methoxyflurane. A human then takes the syringe filled with methoxyflurane and positions it in the receiving element for the syringe (5) so that the syringe barrel fits into the syringe barrel orifice (14) and the tip of the syringe barrel fits into the inlet channel (16).
After inserting the syringe filled with methoxyflurane into the inhalation device (1), a human takes the inhalation device (1) in the hand and presses the button (41), resulting in the movement of the rod and the movement of the piston connected to the rod, and, accordingly, a portion of methoxyflurane flows through the tip of the syringe and the inlet channel (16) into the evaporation chamber (2), specifically, a portion of methoxyflurane flows to the filler (11) positioned in the evaporation space of the hollow case (4). Due to the branched surface area of the filler material (11), rapid evaporation of methoxyflurane and formation of the methoxyflurane vapor occur, wherein the methoxyflurane vapor flows to the volume of the evaporation space of the hollow case (4), where it mixes with the air, and the mixture of the methoxyflurane vapor and air is formed in the evaporation space of the hollow case (4).
After that, a human brings the inhalation device (1) to the mouth so that the end of the connecting branch (6) with the open orifice is positioned between the human lips, and alternately inhales and exhales.
During the phase of the inhalation, that a human performs, the following occurs in the inhalation device (1).
When a human inhales, a rarefaction occurs in the interior space of the connecting branch (6) leading to the opening of the inhalation valve (8). The air valves (7) open simultaneously with the inhalation valve (8). It happens in the following way. Under the rarefaction in the interior space of the connecting branch (6), the membrane (25) of the inhalation valve (8) deflects and allows the mixture of the volatile anesthetic vapor and air to flow from the evaporation space of the hollow case (4) through the case (22) of the inhalation valve (8) and the outlet orifice (24) of the inhalation valve (8) into the interior space of the connecting branch (6). Further, during the inhalation, the mixture of the methoxyflurane vapor and air flows from the interior space of the connecting branch (6) into the human mouth and then the human lungs. When the inhalation valve (8) is opened, rarefaction also occurs in the evaporation space of the hollow case (4); under this rarefaction, the membranes (21) of the air valves (7) deflect and allow a portion of the air to flow from the environment through the inlet orifices (19) of the air valves (7) and cases (18) of the air valves (7) into the evaporation space of the hollow case (4). The portion of the air that entered the evaporation space of the hollow case (4) during the inhalation, due to the movement of this air, quickly mixes with the methoxyflurane vapor to form a mixture of methoxyflurane vapor and air.
The exhalation valve (9) is closed during the phase of the inhalation.
During the phase of the exhalation, performed by a human, the following occurs in the inhalation device (1). When a human exhales, pressure arises in the interior space of the connecting branch (6) leading to the opening of the inhalation valve (9). It happens in the following way. Under the pressure in the interior space of the connecting branch (6), the membrane (29) of the inhalation valve (9) deflects and allows the gas exhaled by a human to flow from the interior space of the connecting branch (6) through the inlet orifice (27) of the inhalation valve (9) and the case (26) of the inhalation valve (9) into the space of the exhalation channel (10). When the exhalation valve (9) opens, pressure also arises in the space of the exhalation channel (10); under this pressure, the gas exhaled by a human, flows from the space of the exhalation channel (10) through the inlet (33) of the filter (3) into the case (32) of the filter (3), where it passes through a layer of the filter material (35). The gas exhaled by a human during exhalation is essentially the air with a small amount of the methoxyflurane vapor. The filter material (35) cleans the air from methoxyflurane vapor, and the methoxyflurane vapor is absorbed by the filter material (35). The purified air exits through the outlet orifices (34) in the case (32) of the filter (3) to the environment.
The air valves (7) and the inhalation valve (8) are closed during the phase of the exhalation.
During the inhalation process, a human periodically, with specific time periods, presses the button (41), injects a portion of methoxyflurane into the evaporation chamber (2), and inhales and exhales.
In addition, according to one of the embodiments of the present disclosure, the button can be configured to comprise at least one locking element (46), wherein each locking element (46) comprises a contact ledge (47), wherein a tube (12) of the receiving element for the syringe (5) is configured to comprise at least one series of the locking ledges (48) on the outer surface of the tube (12) of the receiving element for the syringe (5). The Figures show one series of the locking ledges (48); however, there can be two series of the locking ledges (48) if the button (41) comprises two locking elements (46). The locking element (46) on the button (41) is configured in the form of a plate that can be bent. The said locking element (46) and the series of the locking ledges (48) are configured to enable the contact ledge (47) to contact the locking ledges (48), when the button (41) moves relative to the side wall (13) of the hollow case (4). One of the issues with using the syringe filled with the volatile anesthetic is that, during the inhalation, a human cannot see the syringe barrel comprising a volume scale. When pressing the finger against the rod or button (41), the movement of the rod, and, accordingly, the movement of the piston, is continuous. Therefore, a human does not control the volume of the portion of the volatile anesthetic every time they press the rod or button (41) and introduces the portions of the volatile anesthetic of different volumes into the evaporation chamber (2). The presence of the locking element (46) comprising the contact ledge (47) on the button (41) and the presence of the series of the locking ledges (48) on the outer surface of the tube (12) of the receiving element for the syringe (5) result in that when the button (41) moves relative to the side wall (13) of the hollow case (4), the contact ledge (47) periodically contacts with the locking ledges (48). When a human lightly presses the button (41), the button (41) first moves freely until the contact ledge (47) starts contacting with any locking ledge (48). When the contact ledge (47) contacts with the locking ledge (48), the button (41) retards, and the movement of the button (41) stops. At this point, if a human wants the button (41) to move further, a human must exert much more effort when pressing the button (41), and the following occurs:
Such a cycle of the contacts of the contact ledge (47) with the locking ledges (48) during the movement of the button (41) results in the stepwise movement of the button (41) along the side wall (13) of the hollow case (4). When a human presses the button (41) with the finger during the inhalation process, they feel with the finger that the movement of the button (41) occurs in stepwise manner from one locking ledge (48) to the next locking ledge (48), which are arranged in a series. It is clear that the more steps of the button (41) a human feels, the larger the volume of the portion of the volatile anesthetic to be injected into the evaporation chamber (2) will be. By pressing the button (41) and simultaneously counting the number of the steps of the movement of the button (41), a human can both choose how many steps they want to move the button (41) and control the volume of the portion of the volatile anesthetic with each movement of the button (41).
The contact ledge (47) and the locking ledges (48) can be configured to enable the movement of the button (41) relative to the side wall (13) of the hollow case (4) in one direction only. This is possible, for example, when the contact ledge (47) is configured to have a triangle cross-section, in which one of the triangle sides is perpendicular to the surface of the locking element (46), and when each locking ledge (48) is configured to have a triangle cross-section, in which one of the triangle sides is perpendicular to the outer surface of the tube (12) of the receiving element for the syringe (5) (see Figure). This design of the contact ledge (47) and locking ledges (48) enables the movement of the button (41) in one direction only, which makes it impossible to reuse the inhalation device (1) after its first use for the inhalation process.
The inhalation device (1) and the inhalation system according to the said embodiment of the present disclosure, in which the movement of the button (41) is carried out in the stepwise manner, are used for inhalation similarly to Example 2.
According to one of the embodiments of the second disclosure, the inhalation system comprises the syringe filled with the volatile anesthetic and configured to comprise the syringe barrel and the piston positioned inside the syringe barrel. If the inhalation system is used by a human who is not experienced with syringes, it is possible to accidentally press the rod, when inserting the syringe filled with the volatile anesthetic into the inhalation device (1), and the volatile anesthetic can leak out of the syringe and enter the air, which will be inhaled by bystanders. Such a situation is especially possible when a human experiences severe pain and severe stress resulting in poor control over their own movements. The use of the syringe comprising the syringe barrel and piston positioned inside the syringe barrel, and not comprising the rod connected to the piston, completely eliminates the possibility of uncontrolled leakage of the volatile anesthetic from the syringe as a result of the human actions, since a human is unable to drive the piston without an extra tool. In order to drive the piston, the button (41) must be configured to comprise the rod (49) configured to drive the piston. The rod (49) can be configured to have a cross-shaped cross-section. The view of the syringe filled with the volatile anesthetic according to this embodiment of the second disclosure is shown in
In order to reduce the number of Figures, Figures show the inhalation device (1) with the button (41) comprising the rod (49), and the button (41) comprising the rod (49). From the Figures provided, to one skilled in the art, the view and design of the button (41) without the rod (49) is clear.
The inhalation system can comprise packaging. Different embodiments of the inhalation system packaging are possible. According to one of the embodiments of the inhalation system packaging, the device (1) and the syringe filled with the volatile anesthetic can be packaged in a common sealed packaging, which can be sterile or non-sterile. According to another embodiment of the inhalation system packaging, the device (1) and the syringe filled with the volatile anesthetic can be packed in separate individual packagings, specifically, the inhalation system can comprise the sealed packaging comprising the first individual packaging, that comprises the inhalations device (1), and the second individual packaging, that comprises the syringe filled with the volatile anesthetic.
According to one of the embodiments of the second disclosure, the inhalation system can comprise the syringe filled with the volatile anesthetic and inserted into the receiving element for the syringe (5). In this embodiment of the second disclosure, the inhalation system is ready-to-use.
The technical contribution of the present disclosure resides in that that the inhalation device and the inhalation system prevent the volatile anesthetic vapor from entering the environment; enable the inhaler to adjust the doses of the volatile anesthetic fed to the inhalation device; expand the range of means for the inhalation with the volatile anesthetics, in particular, means for the inhalation with methoxyflurane.
The given examples only illustrate the present disclosure, but do not limit it.
| Number | Date | Country | Kind |
|---|---|---|---|
| A202104788 | Aug 2021 | UA | national |
| U202104820 | Aug 2021 | UA | national |
| U202104821 | Aug 2021 | UA | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/IB2022/057982 | 8/25/2022 | WO |
