Medical device comprising filter assembly for use in collecting bodily waste material

Abstract

A medical device for use in collecting bodily waste material comprises a filter assembly (100). The filter assembly comprises a filter housing (1), a filter lid (2), and a filter body (3). The filter housing (1) and the filter lid (2) have mutually engaging shapes (1D, 2G) forming a snap closure to removably snap the filter lid (2) onto the filter housing (1) to form a chamber (10) for the filter body (3). The filter housing (1) comprises at least one first aperture (18) to fluidly connect the filter body (3) inside the chamber (10) with an outside of the filter assembly (100) at a side of the filter assembly (100) facing away from the filter lid (2). The filter assembly (100) comprises at least one second aperture (2F) to fluidly connect the filter body (3) inside the chamber (10) with an outside of the filter assembly (100) at a side of the filter assembly (100) that holds the filter lid (2). Fig. 1

Description

FIELD OF THE INVENTION The invention relates to a medical device for use in collecting bodily waste material. The invention further relates to a method of manufacturing a medical device for use in collecting bodily waste material. BACKGROUND OF THE INVENTION An ostomy pouch is a medical device, typically used to collect waste from a surgically created stoma, which is an opening on the abdomen that allows waste to exit the body. An ostomy pouch may be made from lightweight, durable, and skin-friendly materials to ensure comfort and prevent irritation. An ostomy pouch may have a filter vent to release gas that accumulates in the pouch. This is to prevent the ostomy pouch from inflating like a balloon (a condition known as ballooning). The filtermay contain a deodorant, such as charcoal, which helps to neutralize odors as the gas passes through. Filters generally work automatically, although they can be inadvertently blocked by tight clothing or skin folds. Some pouches have replaceable filters. Current filters in ostomy pouches may be welded in the film layers of the pouch. Current filters can only transmit a small amount of gas at once. A larger amount of gas can only be transmitted by a separate opening in the pouch. Most existing filters in ostomy pouches are for single use only. When the filter is saturated, the whole ostomy pouch needs to be replaced. Even ifthe filter is replaceable, the process of replacing the filter is tedious. When there is a large amount of gas in the pouch, it takes a long time for the gas to leave the pouch through the filter. EP 3 075 362 B1 discloses an ostomy bag assembly comprising an outer bag and an inner bag. The outer bag has a base plate coupling element attached to an edge of an outer bag main aperture. The inner bag has an inner bag main aperture, which in operation is aligned with the outer bag main aperture. The inner bag is provided with a liquid sealing and gas permeable barrier device designed to allow gas to escape the inner bag to inflate the outer bag so as to prevent pancaking of the outer bag. The outer bag is provided with a three position filter device, wherein the three position filter device has a first, second and third operational position each allowing a different amount of gas to be guided out from the outer bag. The three position filter device comprises a shutter member in movable engagement with a filter body attached to the outer bag. The first, second and third positions form a linear or circulararrangementand the shuttermember is linearly or rotationally moveable with respect to the filter body, respectively, so as to select between said first, second and third positions. However, filters of ostomy pouches are often perceived difficult to handle. This may prevent users from making optimal use of the ostomy pouches. SUMMARYOF THE INVENTION lt would be advantageous to provide an improved medical device for use in collecting bodily waste material. According to an aspect of the invention, a medical device is provided comprising a filter assembly. The filter assembly comprises: a filter housing having a closed side (11) and an open side (12); a filter lid; and a filter body, wherein the filter housing and the filter lid have mutually engaging shapes forming a snap closure to removably snap the filter lid onto the open side of the filter housing to form an airtight chamber for the filter body, wherein the filter housing comprises at least one first aperture to fluidly connect the filter body inside the chamber with an outside of the chamber at the closed side of the filter housing, and wherein the filter assembly comprises at least one second aperture to fluidly connect the filter body inside the chamber with an outside of the filter assembly at a side of the filter assembly opposite the closed side of the filter housing. The filter housing may provide a leak-free vent for releasing gas from the pouch. The filter is not permanently fixed into the pouch but can be placed inside the chamber of the filter assembly, as a separate component which can be replaced. The snap closure allows to remove the filter lid from the filter housing and snap the filter lid back onto the filter housing again to form the airtight chamber. This provides a remarkably convenient way to replace the filter body. Removing the filter lid from the filter housing provides access to the inside of the filter assembly, so that the filter body can be easily replaced. This way, the medical device does not need to be replaced in its entirety when the filter body is saturated. Also, because it is easy for the user to understand how the filter lid works, the user can replace the filter body with confidence. The medical device may comprise a collection receptacle for storing collected bodily waste material, wherein the filter housing is sealed to the collection receptacle, and the first aperture fluidly connects an inside of the collection receptacle to the filter body inside the chamber and the second aperture fluidly connects the filter body inside the chamber to an outside of the collection receptacle. The filter lid may be accessible from outside the collection receptacle when in its snapped position on the filter housing. This way, the filter assembly acts as a filtered gas release for gases accumulating in the collection receptacle. In an example implementation, the filter housing does not protrude from the collection receptacle on an outside of the collection receptacle by a height that is more than 0.1 times a total height of the filter housing measured from the closed side to the open side of the filter housing. Protruding objects may be inconvenient for the user. Therefore, the filter housing may be designed to be located as much as possible inside the collection pouch. In a preferred implementation, the filter housing does not protrude from the collection receptacle on an outside of the collection receptacle. The filter housing may comprise a seal strip surrounding the open side of the filter housing, wherein the seal strip is sealed to the collection receptacle around the housing, wherein the housing is inside the collection receptacle. This way the filter assembly is less disruptive for the user, because it is mainly inside the collection receptacle rather than on top of it. The filter assembly may comprise a compartment in between the first aperture and the chamber to fluidly connect the first aperture to the chamber. This compartment acts as a buffer between the aperture (which opens into the collection receptacle) and the filter body, so that only the gases reach the filter body and the filter body is not polluted with solid waste material. The first aperture and the second aperture may be located on opposing ends of the chamber for the filter body. This way, the gas received through the first aperture is guided through the entire filter body before it exits through the second aperture. These opposing ends may be found along a longitudinal direction of the chamber. The mutually engaging shapes forming the snap closure may be symmetric so that the filter lid can be snapped in at least two positions onto the filter housing. For example, the mutually engaging shapes may be point symmetric so that the filter lid can be snapped in at leasta first position and a second position, wherein the second position is 180 degrees rotated compared to the first position in a plane of the filter lid. The said at leastone first aperture of the filter housing may comprise at leastone aperture on a first end of the filter chamber and at least one aperture on a second end of the filter chamber opposite the first end of the filter chamber. Moreover, the filter lid may comprise an abutment surface to close the at least one aperture on one of the first end of the filter chamber and the second end of the filter chamber. By providing these first apertures on both ends of the filter chamber, it becomes easy to deflate the collection receptacle, by opening the lid on either side, thereby revealing one (or more) of the apertures. This allows to quickly reduce the pressure caused by accumulated gases inside the collection receptacle. The filter lid may comprise a compartment fluidly connecting the at least one aperture on the other one of the first end of the filter chamber and the second end of the filter chamber to said other one of the first end of the filter chamber and the second end of the filter chamber. The compartment avoids direct contact between the solid or liquid bodily waste material inside the collection receptacle and the filter body. The aperture on the other one of the first end of the filter chamber and the second end of the filter chamber is used to release filtered gas. The aperture on either side of the filter chamber can be used for quick release of excess gases by lifting the corresponding side of the filter lid. The filter lid may comprise the at least one second aperture to fluidly connect said one of the first end of the filter chamber and the second end of the filter chamber to the outside of the filter assembly. This provides a particularly effectiveway to provide the at least one second aperture, which may be particularly easy to manufacture. The filter lid may comprise a grip tab extending from the filter lid away from the snap closure on the first end ofthe filterchamber orthe second end ofthe filterchamber. This makes it easier to open the lid by lifting the grip tap. The filter lid may comprise a placeholder for the filter body with edges protruding inwardly towards each other to hold the filter body in the placeholder of the filter lid. This facilitates easy handling of the filter body, because it is removed from the filter housing together with the filter lid, while still being able to be removed easily from the filter lid. The filter body may be sandwiched between the filter housing and the filter lid, in the chamber. The filter lid may comprise a slot in which the filter body fits. This is anotherway to keep the filter body attached to the filter lid until it is expressly removed therefrom. In the slot, the filter body may be better secured than by the inwardly protruding edges. The filter body may be exposed and replaceable when the filter lid is removed from the filter housing. This facilitates the easy replacement of the filter body. The filter lid may be made of a flexible airtight material. A flexible material is particularly convenient, because it makes the snap closure more effective. The filter lid may be configured to be fully detachable from and re-attachable to the filter housing by means of the snap closure. Being able to completely detach the filter lid from the filter housing makes it easier to transport the filter body to a wastebin. Moreover, it makes it easier to clean both the filter lid and the filter housing. The filter assembly may comprise a hinge rotatably connecting the filter lid to the filter housing when the filter lid is not snap fit to the filter housing. This allows to open the filter while preventing the filter lid from being lost. The medical device may comprise a cap configured to selectively close the second aperture. Thus, the cap may be applied to close or open the second aperture at will. Such a cap may have the form of a screw cap or a sticker to be placed on the outer surface of the filter assembly, for example. According to another aspect of the invention, a method of manufacturing a medical device is provided. The medical device may be useful for collecting bodily waste material. The method comprises: molding a filter housing having a closed side and an open side; molding a filter lid; and providing a filter body, wherein the filter housing and the filter lid have mutually engaging shapes forming a snap closure to removably snap the filter lid onto the open side of the filter housing to form a filter assembly with a chamber for the filter body, wherein the filter housing comprises at least one first aperture to fluidly connect the filter body inside the chamber with an outside of the chamber at the closed side of the filter assembly facing away from the filter lid, and wherein the filter assembly comprises at least one second aperture to fluidly connect the filter body inside the chamber with an outside of the filter assembly at a side of the filter assembly opposite the closed side of the filter housing. This provides a particularly effective way to create the filter assembly of the medical device. The method may further comprise sealing the filter housing to a collection receptacle for storing collected bodily waste material. This way, a durable medical device for collecting bodily waste material is created, with a replaceable filter body. The person skilled in the art will understand that the features described above may be combined in any way deemed useful. Moreover, modifications and variations described in respect of the system may likewise be applied to the method, and modifications and variations described in respect of the method may likewise be applied to the system. BRIEF DESCRIPTION OF THE DRAWINGS In the following, aspects of the invention will be elucidated by means of examples, with reference to the drawings. The drawings are diagrammatic and may not be drawn to scale. Throughout the drawings, similar itemsmay be marked with the same reference numerals. Fig. 1 shows a cross section of a filter assembly. Fig. 2 illustrates gas flow through the filter assembly in a first mode of operation. Fig. 3 illustrates gas flow through the filter assembly in a second mode of operation. Fig. 4 shows a perspective view of a filter housing. Fig. 5 shows an enlargement of a portion of the filter housing from another perspective. Fig. 6 shows a perspective top view of a filter lid. Fig. 7 shows a bottom view of a filter lid without a filter body. Fig. 8 shows a perspective bottom view of a filter lid without a filter body. Fig. 9 shows another perspective bottom view of a filter lid without filter body. Fig. 10 shows a perspective bottom view of a filter lid holding a filter body. Fig. 11 shows a flowchart illustrating aspects of a method of manufacturing a medical device comprising a filter assembly. DETAILED DESCRIPTION OF EMBODIMENTS Certain exemplary embodiments will be described in greater detail, with reference to the accompanying drawings. The matters disclosed in the description, such as detailed construction and elements, are provided to assist in a comprehensive understanding of the exemplary embodiments. Accordingly, it is apparent that the exemplary embodiments can be carried out without those specifically defined matters. Also, well-known operations or structures are not described in detail, since they would obscure the description with unnecessary detail. The filter body may be placed in a fixed filter house which is sealed into an ostomy pouch. For example if the shape of the filter body is rectangular (or square), a long filter transmission route may be achieved from one edge of the filter body to an opposing edge of the filter body. However, this may also be achieved with other shapes, such as rounded, oval or circular shapes, by passing the gas through the filter from one edge of the filter body to an opposing edge of the filter body. Thus, the filter body can be a relatively thin body, e.g. a relatively small height compared to the width and depth. For example, the height of the filter body may be less than 1 centimeter, preferably less than 0.5 centimeter, whereas the width and depth of the filter body may be more than 1 centimeter, preferably more than 3 centimeters, and the depth of the filter body in the transmission direction of the gas may be preferably more than 4 or 5 centimeters. The filter house may be optionally constructed so that it is inside the pouch, not on top of the outside surface of the pouch. This improves the user comfort. ln certain embodiments, the seal lines ofthe filterhouse may be arranged such that the filterhouse is located inside the ostomy pouch in its entirety or at least most of the volume of the filter house is inside the ostomy pouch. This way the height of the component is hidden inside the pouch. ln certain embodiments the lid of the filter house can be pushed inside the filter house and hidden in the pouch. By opening the lid of the filter house the gas can leave the pouch, bypassing the filter body. The filter body can be replaced, and a new filter body can be placed. In certain embodiments, the filter house has a two-way filter transmission route. This means that the lid can be placed in two orientations onto the filter house, because the filter house is symmetric, for example it has the small holes on both sides. The orientation of the lid determines which holes are open, providing a passage to the filter body, and which holes are closed. The closed holes can be used as a shortcut in case there is a lot of air inside the pouch: by lifting the lid the air can escape quickly without going through the filter. The open holes can be used as a shortcut in the same way, by lifting the lid at the side of the open holes. Lifting the lid may be facilitated by a grip tab. The lid may have small edges inside to keep the filter in place. To open the lid there may be a grip tab. This grip tab may have traction points. These traction points may provide a relief on the grip tab to guide the user to the right direction for opening or closing the lid. The traction points may also improve the grip on the grip tab. The filter house and the filter lid may be made of any suitable material, such as low-density polyethylene (LDPE) and / or ethylene-vinyl acetate (EVA) or a suitable soft polyethylene (PE) material. Such a material is comfortable for a user and gentle to cloths. The flexible material makes it easy to squeeze the filter out of the lid. The filter body may be made of a porous filter material with active carbon or any other deodorant or perfume particles, for example. Fig. 1 shows a cross section of an example embodiment of the filter assembly 100. The filter assembly 100 comprises as filter housing 1, a filter lid 2, and a filter body 3. The filter housing 1 comprises a weld / seal area 1A, where the filter housing 1 is welded or sealed or otherwise joined to the wall 4 of a pouch. The filter housing 1 further has apertures 18, 10 to release gases through the filter body 3 or directly into the environment. As the filter housing is embedded inside the pouch, it may be invisible. In the illustrated embodiment, the filter housing is welded on the inside of the pouch. Only a part of the filter lid 2 may is from outside the pouch. The filter lid 2 has a first compartment 2A configured to cooperate with aperture 18 to guide gas through the aperture 18 towards and into the filter body 3. Likewise, the first compartment 2A can cooperate with aperture 1C, if the filter lid 2 is placed on the filter housing 1 after rotating it 180 degrees. The filter lid 2 has a second compartment 2B configured to guide gas released from the filter body 3 towards and into the environment through aperture 2F. The filter lid 2 also has a stopper 2E, for example an abutment surface, to block aperture 1C, preventing gas release through aperture 1C. The filter lid 2 further comprises edges 2C to keep the filter body loosely attached to the filter lid 2. The filter lid 2 may further comprise a grip tab 2D. The grip tab 2D allows for easy removal of the entire filter lid 2 from the filter housing 1, or lifting one side of the filter lid 2 slightly to release gas / air (venting) through aperture 1C, after which the filter lid 2 can be pressed on to fix it again to the filter housing. Fig. 2 shows the gas flow when the filter lid 2 is in closed position, covering the open side 11 ofthe filter housing 1. In this situation, the filter housing 1 and the filter lid 2 together form a closed chamber 10 with the filter body 3 in it. As illustrated in Fig. 2, gas flow from the pouch can go through aperture 18 through the compartment 2A into the filter body 3 on one edge of the filter body 3, and filtered gas can leave the filter body 3 through compartment 28 on another, opposing edge of the filter body 3. The aperture 10 is closed by the stopper 2E. When the filter lid 2 is in half opened position, as shown in Fig. 3, the stopper2E is lifted, leaving the aperture 10 open, so that gas can escape through aperture 10 directly into the environment. Fig. 4 illustrates the inside of the filter housing 1, with apertures 18. The location of apertures 10 is also indicated, although not visible in Fig. 4. Also the engaging shape in form of edge 1D is shown, which is used to press lock the filter lid 2 in place in the filter house 1. Fig. 5 shows a perspective view of the inside of the filter house 1, on the side of the apertures 1C. Also, the seal strip 1A is shown which runs around the circumference of the filter housing and which may be sealed to the inside of the pouch. Alternatively, the seal strip may be sealed to the outside of the pouch. Fig. 6 shows a top view of the filter lid 2. The aperture 2F and the grip tab 2D are shown. Furthermore, certain embodiments comprise a cap 5 that can be put on the aperture 2F to completely close the aperture 2F. In such a case, no gas can escape through the filter assembly 100. The cap 5 may take the form of e.g. a sticker that can be placed on the surface of the filter lid 2 by means of an adhesive on at least one side of the sticker. Alternatively, the cap 5 and filter lid 2 may have other means to attach the cap 5 to the filter lid 2 to close the aperture 2F, such as a screw / nut connection or a snap fit connection. Fig. 7 shows a bottom view of the filter lid 2. The grip tap 2D and the edges 20 to hold the filter body are shown, as well as the stopper 2E, the entrance aperture 2A to the compartment2A and the entrance aperture ZB to compartmentZB are shown. Fig. 8 shows a perspective view of the bottom side of filter lid 2, showing mostly the same features as Fig. 7, but showing more clearly the entrance aperture ZB to compartment ZB. Also visible is engaging shape ZG in form of an edge around the circumference of a part of the filter lid 2 that matches the engaging shape 1D in form of an edge around the chamber for the filter body 3. Fig. 9 shows another perspective view of the bottom side of the filter lid 2, showing mostly the same features as Fig. 7, but showing more clearly the entrance aperture 2A and exit aperture 2A of the compartment 2A. The compartment 2A (see also Fig. 1) may provide a bufferbetween the entrance aperture 2A and the exit aperture 2A. This buffer may have a volume of, for example, at least 5 square millimeters. In addition, or alternatively, the optional space ZH formed by optional protruding edge ZJ may form such a buffer. ln any case, such a buffer helps prevent direct contact between waste material on the other side of the aperture 1B of the filter housing and the filter body 3. Fig. 10 shows the filter body 3 in its position in the filter lid 2. The filter body 3 is kept in place by the filter grips 2C. The filter body may comprise a deodorant material. This way any odour may be removed from the gas before the gas is released into the environment. Additionally, a perfume may be added to the gas by the filter body 3 before the gas is released into the environment. The filter body 3 may comprise a plurality of portions, made of different materials or different compositions or different densities, to realize filtering in a plurality of phases. For example, a deodorant phase adjacent to a perfume phase. Fig. 11 shows a flowchart of a method of manufacturing a medical device for use in collecting bodily waste material. The method comprises step 111 of molding a filter housing, step 112 of molding a filter lid, and step 113 of providing a filter body. Step 113 may comprise cutting a suitable filter material into a size that precisely fits in a corresponding chamber for the filter body. The filter housing and the filter lid are molded to have mutually engaging shapes forming a snap closure to removably snap the filter lid onto the filter housing to form a filter assembly with an airtight chamber for the filter body. The filter housing is provided with at least one first aperture to fluidly connect the filter body inside the chamber with an outside of the chamber at a side of the filter assembly facing away from the filter lid. The filter assembly is provided with at least one second aperture to fluidly connect the filter body inside the chamber with an outside of the chamber at a side of the filter assembly that holds the filter lid. The method may further comprise step 114 of sealing the filter housing to a collection bag or other receptacle. ln particular the edge of the filter housing may be sealed to an inner surface of a wall of the receptacle. The method may further comprise step 115 of inserting the filter body into the filter lid. The method may further comprise step 116 of placing the filter lid onto the filter housing. Besides, other manufacturing procedures are possible to provide the filter lid and filter housing instead of molding. Additive manufacturing could be used for example. Alternative embodiments of the filter assembly are possible, without departing from the scope of the claimed invention. For example, the filter housing 1 may be made of a hard material, such as stainless steel or hard plastic. The flexible filter lid 2 may then still be lifted partially as described. Alternatively, the filter lid may also be made of a hard material. ln certain embodiments, the snap lock 1D / 2G comprises a flexible material, such as a rubber ring, to enable closing / opening of the snap lock. The apertures 1C in the filter housing 1 and the abutment surface 1E of the filter lid 2 are optional. Alternatively, the apertures 1B of the filter housing may be used for both filtered release and unfiltered release. For example, the filter lid 2 may be lifted on the side of the apertures 1B, to quickly release excess gas. To further facilitate this, the grip tab 2D may be located on the side of the compartment 2A. The apertures 1C and abutment surface 1E provide a symmetrical design so that the filter lid 2 can be placed on the filter housing in any of two positions, without hampering the filtering operation. The number of apertures 1B and 1C is variable, this could by any number from one aperture to any number of apertures. For example, two apertures 1B on one side of the filter housing and two apertures 1C on the other side of the filter housing, as in the illustrated example, prevents malfunctioning of the filter assembly when one aperture is congested. There may also be more than on aperture 2F for the filtered gas release. The filter housing 1 or the filter lid 2 may provide for a buffer in between the aperture 1B of the filter housing 1 and the filter body 3. This buffer may consist of an empty space. Such a buffer avoids direct contact of waste material on the outside of aperture 1B with the filter body 3. Also, the apertures 1B and 1C may be dimensioned sufficiently smal to avoid that solid waste material passes through these apertures. The empty space of the buffer may, for example, have a width in between about 0.8 and 2.0 mm and a length between about 12 and 20 mm. However, these dimensions are merely examples and other dimensions are possible. The apertures 1B, 1C may have, for example a diameter between about 0.4 and 1.2 mm. The aperture 2F may have a similar size, but may also be bigger or smaller than the apertures 1B, 1C. The number of apertures is variable; where one aperture is described, this may be replaced by a plurality of apertures, for example, two or three apertures. However, the dimensions of the apertures are merely mentioned by means of examples. Other dimensions are possible. Although throughout the above disclosure, reference is made to a pouch for collecting the waste material, such a pouch may be replaced by any suitable collection receptacle. Such a collection receptacle could alternatively be made in form of a box, for example. The mutually engaging shapes (1D, 2G) forming a snap closure may be implemented in different alternative ways. In the illustrated example, the engaging shapes are implemented in form of engaging edges that extend around the entire chamber for the filter body, so that the engaging shapes also fluidly close the chamber. ln an alternative construction, this may be replaced by e.g. a lock (e.g. a click closure) that keeps the filter housing and filter lid together, wherein the filter housing and the filter lid have a matching circumference that is fluidly closed as long as the filter lid is kept on the filter housing by the lock. The fluid closure may be improved by e.g. a rubber strip on either the filter housing or the filter lid or both, along the matching circumference. The examples and embodiments described herein serve to illustrate rather than limit the invention. The person skilled in the art will be able to design alternative embodiments without departing from the spirit and scope of the present disclosure, as defined by the appended claims and their equivalents. Reference signs placed in parentheses in the claims shall not be interpreted to limit the scope of the claims. Items described as separate entities in the claims or the description may be implemented as a single hardware or software item combining the features of the items described. Certain aspects are defined in the following clauses. 1. A medical device for use in collecting bodily waste material, the medical device comprising a filter assembly (100), the filter assembly comprising: a filter housing (1) having a closed side (11) and an open side (12); a filter lid (2); and a filter body (3), wherein the filter housing (1) and the filter lid (2) have mutually engaging shapes (1 D, ZG) forming a snap closure to removably snap the filter lid (2) onto the open side (12) of the filter housing (1) to form a chamber (10) for the filter body (3), wherein the filter housing (1) comprises at least one first aperture (1 B) to fluidly connect the filter body (3) inside the chamber (10) with an outside of the filter assembly (100) at the closed side of the filter housing (1), and wherein the filter assembly (100) comprises at least one second aperture (2F) to fluidly connect the filter body (3) inside the chamber (10) with an outside of the filter assembly (100) at a side of the filter assembly (100) opposite the closed side (11) of the filter housing (1). 2. The medical device according to clause 1, further comprising a collection receptacle (4) for storing collected bodily waste material, wherein the filter housing (1) is sealed to the collection receptacle (4), and the first aperture (1B) fluidly connects an inside of the collection receptacle (4) to the filter body (3) inside the chamber (10) and the second aperture (2F) fluidly connects the filter body (3) inside the chamber (10) to an outside of the collection receptacle (4), and the filter lid (2) is accessible from outside the collection receptacle (4) when snapped on the filter housing (1). 3. The medical device according to clause 2, wherein the filter housing (1) does not protrude from the collection receptacle (4) on an outside of the collection receptacle (4) by a height that is more than 0.1 times a total height of the filter housing (1) measured from the closed side (11) to the open side (12) of the filter housing (1). 4. The medical device according to clause 3, wherein the filter housing (1) does not protrude from the collection receptacle (4) on an outside of the collection receptacle (4). 5. The medical device according to any one of clauses 2 to 4, wherein the filter housing (1) comprises a seal strip (1A) surrounding the open side (12) of the filter housing (1), wherein the seal strip (1A) is sealed to the collection receptacle (4) around the filter housing (1), wherein the filter housing (1) is inside the collection receptacle (4). 6. The medical device according to any one of the preceding clauses, wherein the filter assembly comprises a compartment (2A) in between the first aperture (1 B) and the chamber (10), wherein the compartment (2A) fluidly connects the first aperture (1 B) to the chamber (10). 7. The medical device according to any one of the preceding clauses, wherein the first aperture (1 B) and the second aperture (2F) are on opposing ends of the chamber (10) for the filter body (3). 8. The medical device according to any one of the preceding clauses, wherein the mutually engaging shapes (1 D, ZG) forming the snap closure are symmetric so that the filter lid (2) can be snapped in at least two different orientations onto the filter housing (1). 9. The medical device according to clause 8, wherein said at least one first aperture (1B) of the filter housing (1) comprises at least one aperture (1 B) on a first end of the filter chamber (10) and at least one aperture (1C) on a second end ofthe filterchamber (10) opposite the firstend ofthe filterchamber (10), and wherein the filter lid (2) comprises an abutment surface (2E) to close the at least one aperture (1C) on one of the first end of the filter chamber (10) and the second end of the filter chamber (10). 10. The medical device according to clause 9, wherein the filter lid (2) comprises a compartment (2A) fluidly connecting the at least one aperture (1 B) on the other one of the first end of the filter chamber (10) and the second end of the filter chamber (10) to said other one of the first end of the filter chamber (10) and the second end of the filter chamber (10). 11. The medical device according to any one of the preceding clauses, wherein the filter lid (2) comprises the at least one second aperture (2F) to fluidly connect said one of the first end of the filter chamber (10) and the second end of the filter chamber (10) to the outside of the filter assembly. 12. The medical device according to any one of the preceding clauses, wherein the filter lid (2) comprises a grip tab (2D) extending from the filter lid (2) away from the snap closure on the first end of the filter chamber (10) or the second end of the filter chamber (10). 13. The medical device according to any one of the preceding clauses, wherein the filter lid (2) comprises a placeholder for the filter body (3) with edges protruding inwardly towards each other to hold the filter body (3) in the placeholder of the filter lid (2). 14. The medical device according to any one of clauses 1 to 12, wherein the filter lid (2) comprises a slot in which the filter body (3) fits. 15. The medical device according to any preceding clause, wherein the filter body (3) is exposed to an environment of the filter assembly (100) and replaceable when the filter lid (2) is removed from the filter housing (1). 16. The medical device according to any preceding clause, wherein the filter lid (2) is made of a flexible airtight material. 17. The medical device according to any one of the preceding clauses, wherein the filter lid (2) is configured to be fully detachable from and re-attachable to the filterhousing (1) by means of the snap closure. 18. The medical device according to any one of clauses 1 to 15, wherein the filter assembly comprises a hinge rotatably connecting the filter lid (2) to the filter housing (1) when the filter lid (2) is not snap fit to the filter housing (1). 19. The medical device according to any one of the preceding clauses, further comprising a cap configured to selectively close the second aperture (2F). 20. A method of manufacturing a medical device for use in collecting bodily waste material, the method comprising: providing (111) a filter housing having a closed side and an open side; providing (112) a filter lid; and providing (113) a filter body, wherein the filter housing and the filter lid have mutually engaging shapes forming a snap closure to removably snap the filter lid onto the open side of the filter housing to form a filter assembly with a chamber for the filter body, wherein the filter housing comprises at least one first aperture to fluidly connect the filter body inside the chamber with an outside of the chamber at the closed side of the filter assembly facing away from the filter lid, and wherein the filter assembly comprises at least one second aperture to fluidly connect the filter body inside the chamber with an outside of the filter assembly at a side of the filter assembly opposite the closed side of the filter housing.

Claims

1. A medical device for use in the collection of body waste, where the medical device includes a filter assembly (100), and where the filter assembly includes: a filter housing (1) with a closed side (11) and an open side (12); a filter lid (2); and a filter body (3), where the filter housing (1) and the filter lid (2) have interlocking shapes (1D, 2G) which form a click closure to remove the filter lid (2) on the open side (12) to click on the filter housing (1) to open a chamber (10) for the filter body (3) forms, where the filter housing (1) contains at least one first opening (1B) to the filter body (3) in the chamber (10) to connect fluids to an outside of the filter assembly (100) on the closed side of the filter housing (1), and where the filter assembly (100) includes at least one second opening (2F) to to connect the filter body (3) in the chamber (10) for fluids to an outside of the filter unit (100) on one side of the filter unit (100) opposite the closed side (11) of the filter housing (1).

2. The medical device according to claim 1, further comprising a receptacle (4) for the storage of collected body waste, where the filter housing (1) is sealed to the collection (4), and the first opening (1B) the inside of the collection bin (4) for connects fluids to the filter body (3) in the chamber (10) and the second opening (2F) the filter body (3) in the chamber (10) for fluids connects to an outside of the collection (4) and the filter lid (2) are accessible from outside the collection (4) when this The filter house (1) has been clicked.

3. The medical device within the meaning of claim 2, where the filter housing (1) is not protrudes from the enclosure (4) on an outside of the enclosure (4) with a height that more than 0.1 times the total height of the filter housing (1) measured from the closed side (11) to the open side (12) of the filter housing (1).

4. The medical device within the meaning of claim 3, where the filter housing (1) is not protrudes from the shelter (4) on the outside of the shelter (4).

5. The medical device pursuant to one of claims 2 to 4, where the filter housing (1) has a sealing strip (1A) around the open side (12) of the filter housing (1), where the sealing strip (1A) is sealed onto the collection (4) around the filter housing (1), where the filter housing (1) is located in the collection (4).

6. The medical device pursuant to one of the preceding claims, where the filter assembly comprises a compartment (2A) between the first opening (1B) and the chamber (10), in which the compartment (2A) connects the first opening (1B) for fluids with the room (10).

7. The medical device pursuant to one of the preceding claims, where the first opening (1B) and the second opening (2F) are opposite the ends of the chamber (10) are located in front of the filter body (3).

8. The medical device pursuant to one of the preceding claims, where the interlocking shapes (1D, 2G) that form the snap closure are symmetrical, so that the filter lid (2) in at least two different orientations on the filter housing (1) can be clicked.

9. The medical device within the meaning of claim 8, Whereby at least one first opening (1B) of the filter housing (1) at least one opening (1B) covers at the first end of the filter chamber (10) and at least one opening (1C) at a second end of the filter chamber (10) opposite the first end of the filter chamber (10), and where the filter cover (2) includes a contact surface (2E) to the at least one opening (1C) at one of the first ends of the filter chamber (10) and the second to close off the end of the filter chamber (10).

10. The medical device within the meaning of claim 9, in which the filter lid (2) contains a compartment (2A) that contains at least one opening (1B) on the other side of the first end of the filter chamber (10) and the second end of the filter chamber (10) for fluids connects to the other mentioned the first end of the filter chamber (10) and the second end of the filter chamber (10).

11. The medical device according to one of the preceding claims, where the filter lid (2) contains at least one second opening (2F) to named one of the first end of the filter chamber (10) and the second end of to connect the filter chamber (10) for fluids to the outside of the filter assembly 12. The medical device pursuant to one of the preceding claims, where the filter lid (2) includes a grip tab (2D) that protrudes from the filter lid (2), away of the snap closure at the first end of the filter chamber (10) or the second end of the filter chamber (10).

13. The medical device pursuant to one of the preceding claims, where the filter lid (2) includes a place for the filter body (3) with edges that turn inwards to protrude towards each other to place the filter body (3) in the place of the filter lid (2) keep.

14. The medical device pursuant to one of claims 1 to 12, where the filter lid (2) contains a slot into which the filter body (3) fits.

15. The medical device pursuant to one of the preceding claims, where the filter body (3) is exposed to an environment of the filter assembly (100) and is replaceable when the filter cover (2) is removed from the filter housing (1).

16. The medical device pursuant to one of the preceding claims, where The filter lid (2) is made of a flexible airtight material.

17. The medical device pursuant to one of the preceding claims, where the filter cover (2) is configured to be completely removable from and to be able to be reattached to the filter housing (1) by means of the click closure.

18. The medical device pursuant to one of claims 1 to 15, where the filter assembly includes a hinge that connects the filter lid (2) to the rotating filter housing (1) when the filter cover (2) is not clicked onto the filter housing (1).

19. The medical device pursuant to one of the preceding claims, further comprising a cap configured to selectively close the second opening (2F).

20. A method for manufacturing a medical device for use for the collection of body waste, where the method includes: equipped (111) with a filter housing with a closed side and an open side; providing (112) with a filter lid; and equipped (113) with a filter body, where the filter housing and the filter lid have interlocking shapes that form a snap closure to detach the filter lid on the open side of the click filter housing to form a filter assembly with a chamber for the filter body, where the filter housing contains at least one primary opening to insert the filter body to connect the fluid chamber to the outside of the chamber on the closed side of the filter assembly facing away from the filter lid, and where the filter unit contains at least one second opening to the to connect filter body in the fluid chamber to an outside of the filter unit on one side of the filter unit opposite the closed side of the filter housing

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