Lid for an ostomy implant with a gas release mechanism

Abstract

The invention regards a lid for an ostomy implant, comprising a base portion configured to engage with an open end of the ostomy implant; a cap portion connected to the base portion, wherein the cap portion selectively permits or prevents fluid communication between an interior of the ostomy implant and an external environment; and a gas 5 release mechanism configured to allow controlled release of gas from the interior of the ostomy implant to the external environment.

Description

[0001] Lid for an ostomy implant with a gas release mechanism

[0002] The present disclosure relates to a lid for an ostomy implant with a gas release mechanism, and related methods.

[0003] Background

[0004] Ostomy care systems are used by individuals managing a stoma to collect waste securely and hygienically. Many conventional systems include an adhesive wafer or faceplate that adheres to the skin around the stoma to create a protective seal. Such wafers, often formed from hydrocolloid materials, can support a pouch while helping to protect peristomal skin from irritation associated with leakage. In some designs, the wafer is integrated with a pouch as a single unit, while in other designs the wafer is a separate component that allows attachment and detachment of a pouch.

[0005] Ostomy systems may also include configurations in which a stoma is provided with an implantable component that interfaces with a closure, for example a lid or cap, to control communication between an interior volume and an external environment. Such closures may be used in connection with waste containment, discharge, cleaning, irrigation, coupling to external accessories, and / or pressure management.

[0006] A recurring challenge in ostomy care relates to gas generation and accumulation. Gas buildup can contribute to discomfort and may be difficult to manage discreetly. Gas management features used in existing products can be sensitive to user conditions, such as posture changes, movement, and variations in output composition. In some cases, accumulated gas may increase pressure within a closed volume, while efforts to release gas can be complicated by the presence of liquid and / or solid waste.

[0007] Another challenge lies in maintaining usability and practicality. Mechanisms intended to control gas release and / or odour can be insufficiently effective under certain conditions, and in other cases may be complex to operate or maintain. Users may experience frustration when devices do not perform consistently in daily life, particularly when balancing secure containment with convenient management of gas and odour.

[0008] There remains an ongoing interest in improving ostomy system components to enhance comfort and day-to-day usability while maintaining reliable containment.Summary

[0009] In view of the challenges associated with conventional ostomy care systems, particularly the inability of known lids to effectively manage gas buildup without user inconvenience or discomfort, the present disclosure seeks to overcome these drawbacks by providing a lid for an ostomy implant that enhances usability, comfort, and practicality for users.

[0010] Therefore, in a first aspect, the present disclosure relates to a lid for an ostomy implant, comprising:

[0011] • a base portion configured to engage with an open end of the ostomy implant;

[0012] • a cap portion connected to the base portion, wherein the cap portion selectively permits or prevents fluid communication between an interior of the ostomy implant and an external environment; and

[0013] • a gas release mechanism configured to allow controlled release of gas from the interior of the ostomy implant to the external environment.

[0014] The lid provides an efficient and hygienic solution for gas management, enabling users to release gas discreetly and comfortably without fully opening the implant, thereby improving upon prior systems that lack such functionality.

[0015] In one embodiment, the gas release mechanism may include a hydrophobic barrier structure designed to limit or prevent liquid waste from contacting the gas release mechanism, ensuring reliable operation even under varying conditions. The gas release mechanism may also be supplemented with an odour control unit, such as a filter containing activated carbon or other odour-absorbing materials, enhancing practicality by mitigating unpleasant odours during gas release.

[0016] The lid may be configured to position the gas release mechanism at an elevated location relative to the typical fill line of the ostomy implant, leveraging gravity to minimize liquid obstruction. This design consideration ensures consistent performance whether the user is upright or reclined, addressing limitations in conventional systems that may not account for positional variations. Additionally, the lid may include a replaceable filter module, allowing straightforward maintenance or upgrade of odour control functionality as needed.In another embodiment, the cap portion may incorporate a controlling part, for example a manual actuator, to enable operation of the gas release mechanism. This controlling part may be configured to transition the lid between multiple states, such as a fully closed position, a gas release position, and a fully open position, providing flexibility to accommodate varying user needs. Alternatively, or additionally, a gas release mechanism may include a pressure relief valve to automatically release gas when internal pressure exceeds a predetermined level, maintaining user comfort without requiring constant manual intervention. Variations of the lid may feature engaging structures on the base portion for secure attachment to the ostomy implant or feedback mechanisms to inform the user of the lid’s operational state, such as tactile, audible, or visual indicators to signal transitions between locked, unlocked, and gas release configurations.

[0017] In a further aspect, the present disclosure also relates to a method of manufacturing a lid for an ostomy implant, the method comprising forming or providing the base portion configured to engage an open end of the ostomy implant, forming or providing the cap portion to selectively permit or prevent fluid communication with an external environment, and assembling the base portion and the cap portion, such as together with a gas release mechanism. This method may include incorporating one or more barrier structures, odour control components, or pressure relief features.

[0018] Description of the drawings

[0019] In the following embodiments and examples will be described in greater detail with reference to the accompanying drawings:

[0020] FIG. 1 A shows a perspective view of a lid (1) for an ostomy implant (4), the lid including a cap portion (8) and a base portion (9) arranged around a through-hole (11).

[0021] FIG. 1 B illustrates a first embodiment of a controlling part (2) featuring an aperture (31 ) and a holding part (32), which may be integrated with or attached to the lid (1).

[0022] FIG. 10 shows a second version of the controlling part (2), again including the aperture (31) and holding part (32), and additionally comprising a stopping arrangement (33). FIG. 1 D presents a patient-side view of the controlling part (2) of FIG. 1 C, highlighting the aperture (31), holding part (32), and a retaining part (34).FIG. 2A provides a cutaway schematic illustration of the lid (1) in a position prepared to engage the ostomy implant (4), showing one or more engaging units (10) near a through-hole (11).

[0023] FIG. 2B is a further cutaway view of the lid (1), illustrating how the engaging unit (10) transitions from a disengaged to an engaged position relative to the ostomy implant (4). FIG. 3A is a perspective view of the lid (1) in an open position, in which an aperture (31) of a controlling part (2) aligns with the through-hole (11).

[0024] FIG. 3B depicts a side view of the lid (1) in the same open position, showing how an attachment portion (25) of the controlling part (2) interfaces with a receiving structure (30).

[0025] FIG. 3C provides a top-down view of the lid (1) in the open position, illustrating the through-hole (11) concentrically aligned with the aperture (31 ) of the controlling part (2).

[0026] FIG. 4A shows a perspective view of the lid (1) in a closed position, with a closing part (52) blocking fluid communication through the through-hole (11).

[0027] FIG. 4B offers a side view of the lid (1 ) in the closed configuration, highlighting how the cap portion (8) extends over the through-hole (11 ).

[0028] FIG. 4G provides a top-down view of the lid (1) in the closed position, illustrating how the cap portion (8) and closing part (52) seal the through-hole (11 ).

[0029] FIG. 5A is a perspective view of a gas-release position for the lid (1), wherein a controlling part (24) is actuated by an activation tab (36) to vent gas.

[0030] FIG. 5B shows a side view in the gas-release position, depicting how shifting or rotating the controlling part (24) disengages a seal for controlled gas escape.

[0031] FIG. 5C is a top-down view of the gas-release position, clarifying how the controlling part (24) allows pressure to be relieved while the main seal remains intact.

[0032] FIG. 6 presents an embodiment of the lid (1) featuring two activation tabs (36) that must be engaged simultaneously to achieve a gas-release configuration.FIG. 7 illustrates a further embodiment of the lid (1), wherein a push / pull action of two activation tabs (36) enables pressure to escape without requiring an additional aperture.

[0033] FIG. 8 provides a flow chart outlining a method (400) for manufacturing or assembling the lid (1), including steps for providing a base portion, providing a cap portion, and assembling these components to form a functional lid for an ostomy implant.

[0034] Detailed description

[0035] The present disclosure relates to a lid for an ostomy implant, comprising a base portion configured to engage with an open end of the ostomy implant, a cap portion connected to the base portion to selectively permit or prevent fluid communication between the interior of the ostomy implant and the external environment, and a gas release mechanism configured to allow selective / controlled release of gas from within the ostomy implant. In various embodiments, the lid may be designed to provide reliable waste containment, convenient gas management, and an overall hygienic operation by addressing challenges commonly encountered in conventional stoma care systems. In one example, the base portion may be attached to the ostomy implant using any suitable locking mechanism, such as radially movable engaging elements, threaded couplings, snap-fit connectors, magnetic attachments, or a combination thereof. The engaging elements may be arranged to move inwardly, outwardly, or in a mixed radial / axial path to secure the lid, potentially facilitated by a controlling part, a rotational grip, or an axial translation. In some designs, these elements may engage a circumferential groove, an undercut, or other implant-specific features. In yet other examples, the base portion could incorporate flexible seal rings or gaskets to ensure fluid-tight contact, accommodating minor variations in implant geometry.

[0036] The cap portion, connected to the base portion, may be configured in many ways to selectively open or close fluid communication with the implant interior. For instance, in some embodiments, the cap portion may be pivoted, rotated, or slid relative to the base portion, allowing users to transition easily between sealed, partially open, and fully open states. Certain variants may include tactile, audible, or visual feedback mechanisms, such as detents or color indicators, so that users can confidently identify the current state of the lid. Other implementations might integrate a lever or a pushbutton to reduce the manual effort needed to adjust the cap portion.The gas release mechanism may be realized through diverse approaches, all serving to regulate internal pressure without the requirement of full detachment of the lid. In one approach, a pressure relief valve opens automatically above a predetermined threshold, thus reducing the frequency of user intervention. Alternatively, a manually actuated gas release may be provided, for example by a dedicated vent valve and / or by placing an effluent outlet in a partially opened state to permit gas release while restricting discharge of liquids and / or solids.

[0037] As used herein, an “effluent outlet” is an opening of the lid (for example a through-opening, aperture or mouth) which, when the lid is in an open configuration, forms at least part of an effluent flow path between an interior of the ostomy implant and an exterior environment to permit passage of stomal effluent (e.g., waste) out of the implant. In a closed configuration, the effluent outlet is closed and / or sealed by a sealing interface between the cap portion and the base portion so as to prevent passage of effluent. The effluent outlet may also be referred to herein as a through-hole of the lid. The effluent outlet may be provided in the base portion and / or in the cap portion, and may be aligned with a corresponding opening of the ostomy implant and / or a receiving structure or docking interface.

[0038] The gas release mechanism may also include or work in conjunction with bypass channels, hydrophobic barriers, or odour control units. For example, a hydrophobic membrane could be placed in-line with any vent or valve, ensuring that liquid waste is repelled while gas can still escape. Additionally, a replaceable filter cartridge could be used to absorb or neutralize odours, employing materials such as activated carbon or zeolite.

[0039] To further accommodate variations in user needs, the gas release mechanism may be implemented in a multi-configuration design of the lid. For instance, the lid may be arranged to be in a closed configuration to seal the ostomy implant fully, a gas-release configuration where gas can be released while discharge of liquids and / or solids is restricted, and / or optionally a partially open or fully open configuration for draining or cleaning. The number and arrangement of such positions can be adapted based on the intended usage scenario. In some embodiments, the entire cap portion itself may act as the gas release mechanism; in others, a controlling part within or attached to the lid may handle the venting function independently of whether the lid is opened or closed. Alternatively, or additionally, the gas release mechanism may comprise overpressurevalves, that release gas, when the pressure below the lid exceeds a pressure threshold.

[0040] In some embodiments, a gas-release configuration may be achieved by a partially opened state of an effluent outlet, while in other embodiments gas release may be achieved via a dedicated vent opening and / or valve while the effluent outlet remains closed.

[0041] A controlling part may be provided and / or integrated in the lid, for example the cap portion. The controlling part may be arranged to transition the lid between its multiple operational states, for example between a closed configuration and a gas release configuration. The controlling part can for example be provided as a rotatable knob, a spring-loaded tab, a slider, or a lever. In certain examples, the controlling part might incorporate a retaining part to prevent accidental activation, such as requiring two separate tabs to be pressed simultaneously or pulled in a certain direction. This ensures that unintentional release of gas, or inadvertent movement to an open position, is minimized.

[0042] Engaging structures provided on the base portion may consist of flexible or rigid units spaced around the circumference of the through-hole of the ostomy implant. These structures are often symmetrically arranged, ensuring even force distribution and reducing the risk of leakage or uneven contact points. Where the base portion and cap portion interact, sealing gaskets, made of elastomeric materials like silicone, TPU, or rubber, may be included, forming a fluid-tight seal in the closed state. Such gaskets can be shaped to match the interface geometry of each lid component, or layered to enhance performance under high internal pressure.

[0043] The lid can integrate a filter module containing activated carbon, zeolite, or other odour-neutralizing materials. This odour control module may be removable for replacement or cleaning. In some variants, the filter is built into a cartridge that also includes the hydrophobic membrane (also referred to herein as a hydrophobic filter), forming a combined assembly for ensuring both odour absorption and liquid repulsion. Another possibility involves a series arrangement, so that gas first passes the hydrophobic membrane, then travels through the odour control material, enhancing overall reliability.As an additional alternative, the locking mechanism between the base portion and the implant may employ threaded interfaces, magnetic fields, or quick-release couplings, offering advantages in ease of use and minimal wear on components. The lid could thus be customized to suit different levels of dexterity among users, or different clinical requirements. The lid may comprise bypass channels for continuous, low-rate venting. For instance, a bypass channel could allow minimal pressure release at all times, while the user retains the option to manually open a larger gas vent or even to move the lid to a fully open position for draining.

[0044] By defining these and other design options, the disclosed lid can address multiple challenges in ostomy care. It can manage gas buildup, minimize odour, maintain secure waste containment, and adapt to various stoma anatomies and user preferences. The overall structure, whether focusing on a robust mechanical locking mechanism, a fluid-tight seal, or a sophisticated gas release arrangement, remains flexible, ensuring broad applicability. Thus, the lid can accommodate the diversity of clinical situations encountered by patients using ostomy implants, providing a comfortable and discreet user experience.

[0045] In one embodiment of the present disclosure, the base portion may be configured to engage with the open end of the ostomy implant using a locking mechanism. This locking mechanism may include one or more engaging elements that are movable between engaged and disengaged positions, facilitating secure attachment and easy detachment of the lid. In one example, the engaging elements may move radially inward or outward to interact with a complementary feature of the ostomy implant, such as a circumferential groove or an undercut. This radial movement could be achieved through a manual actuator, rotational movement, or axial translation of the base portion relative to the implant.

[0046] The base portion, as used herein, refers to a structural component of the lid configured to engage with an open end of an ostomy implant. Broadly, the base portion ensures secure attachment and fluid-tight sealing, enabling the lid to interface effectively with the implant.

[0047] The cap portion, as used herein, refers to a structural component of the lid connected to the base portion, configured to selectively permit or prevent fluid communication between the interior of the ostomy implant and the external environment.The cap portion may include mechanisms for gas release, such as apertures or valves, and may operate via rotational, sliding, or pivoting movement relative to the base portion. In narrower embodiments, the cap portion may house components such as manual actuators or sealing gaskets. Variations may also include designs with tactile, audible, or visual feedback for enhanced usability.

[0048] The gas release mechanism, as used herein, refers to a system or component that allows controlled release of gas from the interior of the ostomy implant to the external environment. Broadly, it facilitates gas management without fully exposing the implant contents.

[0049] In some embodiments, the gas release mechanism may include manually actuated valves, pressure relief valves, or bypass channels. For example, a hydrophobic membrane may be incorporated to prevent liquid waste from obstructing the gas pathway. More specific implementations may include replaceable cartridges containing odour-absorbing materials, such as activated carbon, to address odours during gas release.

[0050] Engaging structures, as used herein, refer to elements of the base portion configured to secure the lid to the ostomy implant by engaging corresponding features of the implant. These structures provide stability and ensure a fluid-tight connection.

[0051] In some embodiments, engaging structures may include radially movable units that expand or contract to grip the implant. Examples of engaging structures may include rotational mechanisms, snap-fit elements, or circumferential grooves that interact with matching features on the implant. Narrower implementations may feature symmetrical arrangements to distribute forces evenly and prevent accidental detachment.

[0052] The hydrophobic membrane, as used herein, refers to a barrier structure within the gas release mechanism designed to allow gas to pass while preventing the passage of liquids.

[0053] The hydrophobic membrane may be made from materials such as PTFE or similar polymers with liquid-repellent properties. In narrower embodiments, the filter may be positioned within a replaceable cartridge or integrated with an odour control unit.

[0054] Additional variations may include filters with specific pore sizes tailored for optimal gas permeability and liquid repellence.The odour control unit, as used herein, refers to a component configured to reduce or eliminate odours associated with gas released from the ostomy implant. Broadly, it enhances user comfort and discretion by addressing potential odour concerns.

[0055] In some embodiments, the odour control unit may include materials such as activated carbon, zeolite, or other odour-absorbing substances housed in a permeable container. Narrower implementations may involve sequential arrangements with barrier structures, ensuring gas flows through both the odour control and filtering components for maximum efficacy.

[0056] The manual actuator, as used herein, refers to a user-operable component of the cap portion designed to control the gas release mechanism.

[0057] In some embodiments, the manual actuator may take the form of a button, tab, lever, or knob that transitions the mechanism between closed and gas-release configurations. In narrower embodiments, the actuator may include features such as locking mechanisms or ergonomic designs for enhanced usability. Examples include spring-loaded actuators that return to a default position when not engaged.

[0058] The sealing gasket, as used herein, refers to an elastomeric element positioned between the base portion and the cap portion to provide a fluid-tight connection in the closed state.

[0059] The sealing gasket may be made from materials such as silicone, rubber, or thermoplastic elastomers. In narrower implementations, the gasket may be contoured to match the interface geometry of the lid components, providing a continuous and reliable seal under varying conditions. Examples may include multiple gaskets arranged in series for enhanced containment.

[0060] The visual indicator, as used herein, refers to a feature of the lid configured to display or reveal the current operational state of the cap portion or gas release mechanism.

[0061] In some embodiments, the visual indicator may include color-coded markers, position lines, or windows revealing internal components. Narrower implementations may include illuminated indicators that change appearance when the cap transitions between open, closed, or gas-release positions.The bypass channel, as used herein, refers to a pathway within the gas release mechanism that provides continuous, low-rate venting of gas from the ostomy implant in the closed position.

[0062] In some embodiments, the bypass channel may include a narrow passage or a gas-permeable membrane that allows gradual escape of gas without user intervention. Examples of narrower implementations may include adjustable channels to regulate flow rates or integrated odour control features for enhanced functionality.

[0063] In some embodiments, the base portion may include engaging structures such as engaging units that move radially or axially to secure the lid to the implant. These structures may interact with corresponding features of the implant, such as circumferential grooves or undercuts. Additional examples of the base portion may include flexible sealing elements, snap-fit connectors, or magnetic couplings that enhance attachment and containment.

[0064] In some embodiments, the locking mechanism may include a first part that is rotatable relative to a second part, where such rotation causes engaging elements to transition between locked and unlocked positions. For example, the rotation of the first part may result in axial displacement of a sealing element, forming a secure seal with the ostomy implant while simultaneously moving the engaging elements radially into an engaged position. This configuration allows for efficient and reliable attachment of the lid to the ostomy implant, while evenly distributing forces to minimize the risk of leaks or accidental detachment. The engaging elements may be symmetrically arranged around the circumference of the base portion to ensure uniform pressure and a stable connection.

[0065] The locking mechanism may also include flexible sealing elements to enhance the fluid-tight connection between the base portion and the ostomy implant. These sealing elements could be made of elastomeric materials, such as silicone or rubber, providing a resilient seal that accommodates minor variations in the geometry of the implant. The flexibility of the sealing elements also contributes to user comfort, reducing the likelihood of irritation or discomfort during prolonged use.

[0066] In other embodiments, the locking mechanism may utilize alternative configurations, such as snap-fit connectors, magnetic couplings, or quick-release tabs. These variations offer additional flexibility, allowing the lid to be adapted to different types ofostomy implants and user preferences. By incorporating a wide range of potential locking mechanisms, the disclosed lid ensures compatibility with diverse applications and enhances its utility in various scenarios.

[0067] The cap portion, connected to the base portion, may be configured to selectively permit or prevent fluid communication between the interior of the ostomy implant and the external environment. In one example, the cap portion may include a rotatable or slidable component that aligns or misaligns an aperture to control gas release. This arrangement allows users to easily transition between open and closed states without fully detaching the lid, providing convenience and discretion in gas management.

[0068] The gas release mechanism, integrated into the lid, is configured to allow controlled release of gas from the interior of the ostomy implant. In some embodiments, the mechanism may include a pressure relief valve that automatically activates when the internal pressure exceeds a predetermined level. Alternatively, the mechanism may be manually operated using a button, lever, or similar actuator, allowing users to regulate gas release according to their needs. To ensure reliable operation, the gas release mechanism may also include a hydrophobic membrane that prevents liquid waste from contacting the valve or escape pathway.

[0069] This combination of features may provide advantages over certain conventional arrangements in which gas management may require partial or complete removal of a closure. By integrating a locking mechanism that securely attaches the lid to the ostomy implant, a cap portion for selective operation, and a gas release mechanism for efficient degassing, the disclosed lid enhances user comfort, convenience, and functionality. Furthermore, the adaptable design of the locking mechanism allows the lid to be used with a wide variety of ostomy implants, ensuring broad applicability in ostomy care systems.

[0070] In one embodiment of the present disclosure, the lid comprises a controlling part that can be actuated to transition the lid between a plurality of configurations. The term “controlling part” may refer to any structural or functional component allowing a user or an automated mechanism to move, shift, or otherwise manipulate portions of the lid. For instance, the controlling part can be integrated into the cap portion, the base portion, or formed as a separate sub-assembly within or adjacent to the lid. By actuating this controlling part, the lid may switch between different operational modes, such as closed, open, and gas-release configurations, without necessarily requiringremoval of the entire lid or altering its attachment to the ostomy implant. Examples of controlling parts include, but are not limited to, sliders, rotary discs, tabs, handles, or motorized actuators.

[0071] In one embodiment of the present disclosure, the controlling part can be rotated, pivoted, or slid, such as relative to the base portion of the lid, to transition the lid between the plurality of configurations. As used herein, “rotated” may refer to turning the controlling part around a central axis, “pivoted” may mean moving it around a hinge or pivot point, and “slid” may involve linear motion along a guide track, rail, or channel. These movements enable the lid to achieve multiple states (e.g., closed, open, or gasrelease) via simple user interaction. For example, a rotatable controlling part can be turned in one direction to seal the lid and turned in another direction to move toward a gas-release state. A sliding arrangement can involve a manual push or pull to open or close specific vent channels.

[0072] In one embodiment of the present disclosure, the controlling part can be actuated to transition the lid between a closed configuration in which gas is substantially prevented from escaping, and a gas-release configuration in which gas is allowed to vent to the external environment. The closed configuration may be achieved by aligning or misaligning certain passages, membranes, or seals that block gas flow, while the gasrelease configuration opens a vent, valve, or channel to provide a controlled pathway for gas discharge. In some implementations, the controlling part also manages partial alignment of flow passages, enabling a range of intermediate positions. Such flexibility can, for instance, address various user comfort levels or specific clinical needs regarding gas buildup.

[0073] In some embodiments, the lid is configured to provide a plurality of discrete configurations, each corresponding to a distinct functional state of the lid. These configurations may be mechanically defined, for example by detents, stop surfaces, or indexing features, such that the lid is stable in each configuration and does not rely on continuous user force to maintain a selected state. In such embodiments, the configurations may include a closed configuration, an open configuration, and a gasrelease configuration that is distinct from both the closed and open configurations. In some embodiments, detents, indexing features, and / or stop surfaces are provided to define the discrete configurations of the lid. Such features may produce tactile, audible, and / or mechanical feedback when a configuration is reached, and may prevent furthermovement of the controlling part beyond a defined position. This can assist users in reliably selecting and maintaining a desired configuration.

[0074] The discrete nature of the configurations can improve usability and safety, as the user can clearly perceive when the lid has reached a specific state. In some embodiments, the lid resists remaining in intermediate positions between the discrete configurations, thereby reducing the risk of unintended leakage or incomplete sealing.

[0075] In some embodiments, the gas-release configuration is obtained by reducing sealing compression locally at a dedicated vent region to form a localized vent gap, while maintaining sealing compression over a remaining circumferential portion.

[0076] In some embodiments, the gas-release configuration is achieved by locally modifying the sealing engagement between the cap portion and the base portion, such that a localized vent gap is formed at a dedicated vent region while a sealing interface remains engaged over a remaining circumferential portion. In this manner, gas can escape through the localized vent gap while the majority of the sealing interface remains compressed, thereby maintaining a waste-retaining condition.

[0077] This arrangement differs from a general opening of the lid in that the vent gap is spatially limited and configured primarily for gas flow, while liquid and solid waste remain substantially retained. The localized vent gap may be defined by corresponding surfaces of the cap portion and the base portion, and its geometry may be selected to restrict liquid flow while allowing gas to pass.

[0078] In one embodiment of the present disclosure, the controlling part is a button, tab, or lever. A button may be pressed inwardly to unlock or lock a portion of the lid mechanism, while a tab can be pulled, pushed, or squeezed to transition the lid to another configuration. A lever might be lifted, lowered, or rotated to the same effect. Each form of actuator provides its own ergonomic benefits: a button can require minimal force, a tab can offer a clear tactile grip, and a lever can supply mechanical advantage. The controlling part may also be ergonomically contoured or provided with tactile / audible feedback, alerting the user when shifting to or from the gas-release configuration.In one embodiment of the present disclosure, the controlling part of the cap portion comprises radially movable, axially slidable, or rotationally driven components to transition the lid between the plurality of configurations. For example, in the case of radially movable components, a segment of the controlling part may expand or contract radially to open or close flow pathways. With axially slidable components, the controlling part may shift longitudinally relative to the lid’s central axis, seating or unseating seals as needed. If rotationally driven components are employed, the controlling part can rotate around a pivot, shaft, or central axis, thereby aligning or misaligning passages to achieve different configurations. These varied motion profiles allow device designers to tailor the mechanism based on spatial, ergonomic, or manufacturing considerations.

[0079] In one embodiment of the present disclosure, the lid can be transitioned, by the controlling part, to at least two configurations, selected from a closed configuration, an open configuration, and a gas-release configuration in which the gas release mechanism is engaged to vent gas while limiting the flow of liquids or solids. The closed configuration may refer to a state in which fluid communication is prevented, ensuring complete containment of waste. The open configuration may allow transfer of waste, removal, cleaning, or maintenance. The gas-release configuration specifically enables controlled venting of gas to reduce internal pressure without permitting significant outflow of liquid or solids. Different designs can add or remove intermediate positions, depending on user needs and product design goals.

[0080] In one embodiment of the present disclosure, the controlling part includes a retaining part, requiring activation in order to transition to the gas release configuration from the closed configuration. The term retaining part may refer to any mechanical or structural interlock, such as a latch, catch, detent, or spring-biased pin, that prevents accidental or unintended movement of the controlling part. For instance, a user might have to press two tabs simultaneously or disengage a lock before shifting from the closed to the gas-release state. Such a retaining feature ensures safety, particularly when the device is subject to inadvertent contact or when the user may be engaged in physical activity that could unintentionally manipulate the lid.

[0081] In some embodiments, transition into the gas-release configuration is intentionally inhibited unless a retaining part is actuated. The retaining part may require a deliberate action separate from movement of the controlling part, thereby implementing a two-step actuation sequence. Such an arrangement can reduce the likelihood of accidental gas release or unintended transition into a non-closed configuration during daily activities.

[0082] The retaining part may be implemented as a latch, lock, catch, resilient element, or other interlock mechanism, and may require pressing, lifting, sliding, or rotating a component prior to allowing movement of the controlling part into the gas-release configuration.

[0083] The controlling part and / or associated structures may include detents and / or stop surfaces configured to define one or more discrete configurations, optionally providing tactile and / or audible feedback when a configuration is reached.

[0084] In one embodiment of the present disclosure, the gas release mechanism comprises a pressure relief valve arranged to automatically release gas when a pressure in the interior of the ostomy implant exceeds a predetermined level, while remaining closed below said level. A pressure relief valve can rely on a spring-biased diaphragm, a flexible membrane, or any suitable mechanism that reacts to changes in internal pressure. Once the pressure surpasses a threshold, the valve briefly opens to exhaust excess gas, restoring a comfortable level inside the implant. This automatic function may complement manual controls, permitting users to combine both passive and active venting as desired.

[0085] In one embodiment of the present disclosure, the lid comprises the pressure relief valve and the controlling part, arranged to manually release gas.

[0086] In some embodiments, user-triggered venting is achieved by manually opening the pressure relief valve, and in other embodiments user-triggered venting is achieved by establishing a gas-release flow path via a partially opened effluent outlet.

[0087] Thus, the device can support both automatic pressure-triggered venting (via the pressure relief valve) and user-triggered venting (via the controlling part). Such a dual approach might be beneficial when the ostomy implant experiences unpredictable gas buildup. If the pressure remains below a certain threshold, the user can still choose to open or partially open the valve manually to release gas. This configuration offers a flexible, multi-tiered strategy for gas management.In some embodiments, the lid comprises both an automatically operating pressure relief valve and a user-operable gas release mechanism. The pressure relief valve may be configured to open automatically when an internal pressure exceeds a threshold, while the user-operable mechanism allows gas to be released on demand, for example by actuation of the controlling part or by manual opening of a valve.

[0088] These two mechanisms may operate independently or in combination, providing a multi-tiered gas management strategy in which automatic pressure relief enhances safety and comfort, while manual gas release offers user control under varying conditions.

[0089] In one embodiment of the present disclosure, the gas release mechanism, or a channel of the gas release mechanism, is arranged at a location of the lid that facilitates venting of accumulated gas while minimizing interference from liquids. This arrangement can broadly include any position or orientation on the lid that provides efficient degassing, with particular emphasis on regions that are “upper” or elevated relative to the typical fill level of the ostomy implant. The primary objective is to direct gas flow toward a designated vent path while significantly reducing the likelihood of fluid intrusion.

[0090] In an example of the present disclosure, the lid may be directionally attachable to the implant. This means the lid includes or cooperates with alignment features, such as protrusions, grooves, or matching notches, on the ostomy implant so that the lid is constrained to a predetermined rotational orientation. In doing so, the gas release mechanism and / or venting channels are always oriented in the same direction, relative to the ostomy implant and / or the patient. For example, the lid may be oriented towards the “top” side of the implant, i.e. vertically upwards when the user is standing up. Users need not rotate or manually adjust the lid each time; once attached, the gas release mechanism is consistently positioned at the most favorable location for gas accumulation. Such directional locking or keyed engagement helps ensure reliable venting performance, especially in cases where the patient tends to remain upright most of the day.

[0091] In some embodiments, the base portion comprises a keying feature configured to cooperate with a complementary feature of the ostomy implant, such that the lid can only be mounted, or is preferentially mounted, in a predetermined rotational orientation. In such embodiments, the pressure relief valve and / or gas release mechanism isthereby consistently positioned within an upper sector when the lid is attached to the implant.

[0092] In certain embodiments, the predetermined orientation corresponds to an anterior side of the lid when implanted, such that the pressure relief valve faces generally toward a front of the user in a standing position.

[0093] As used herein, a “use orientation” may refer to an orientation of the lid when the ostomy implant is implanted and the user is upright. A “longitudinal axis” may refer to an axis extending generally along an insertion / removal direction of the lid relative to the implant. References to an “upper sector” of the lid refer to a region that, in normal use when the ostomy implant is worn by a user, is positioned above a corresponding “lower sector” relative to gravity. The upper sector may vary with user posture, however during typical standing or seated use the upper sector corresponds to the portion of the lid oriented generally upward on the user’s body. An “anterior” side may refer to a side facing generally toward a front of the user in an implanted condition.

[0094] In some embodiments, a pressure relief valve is positioned in an upper sector of the lid when the lid is in a use orientation. Gas tends to accumulate in upper regions of the ostomy implant relative to gravity, and placement of the pressure relief valve in such an upper sector can improve venting efficiency while reducing exposure of the valve to liquid waste.

[0095] In some embodiments, the gas release mechanism is implemented by partially opening the effluent opening while maintaining the lid in a waste-retaining state. For example, in a gas-release configuration the sealing interface between the cap portion and the base portion remains engaged around a majority of a perimeter of the effluent opening but is locally relaxed or spaced apart in a vent region to form a vent gap. The vent gap may be located in an upper sector of the effluent opening such that gas can escape while liquid waste, which tends to collect in a lower sector, is retained. The vent gap may be formed by a cam, ramp, eccentric surface, or stepped sealing surface actuated by the controlling part, optionally providing a discrete “gas-release” detent position distinct from a fully open configuration.

[0096] In some embodiments, the gas release mechanism comprises a pressure relief valve (PRV) communicating with the interior via a gas channel formed in or by the lid. The gas channel may have an inlet positioned in an upper sector of the ostomy implantand / or lid and an outlet positioned on an exterior-facing side of the lid. The gas channel may include one or more bends, rises, or labyrinth portions forming a tortuous path, and / or a drip edge or drain-back region configured to discourage transport of liquid waste toward the PRV. A barrier structure (e.g., baffle / guard / shield) may cover an inlet region of the gas channel or the PRV to reduce splash impingement while allowing gas flow.

[0097] The upper sector may be defined relative to a longitudinal axis of the lid and a direction opposite gravity, for example corresponding to an upper half of the circumferential extent of the lid.

[0098] Alternatively, the lid may be arranged so that it can be freely rotated by the user around the ostomy implant to position the gas release channels at any preferred orientation. For instance, a circular or elliptical rim on the base portion could interact with a corresponding flange on the implant, allowing the user to spin or rotate the lid. This adjustability provides flexibility: if the user lies down frequently on one side or has a particular stance in which gas accumulates in a specific region, they can rotate the lid such that the vent channel is placed “upwards.” Hence, minimal user effort can adapt the venting location to changing postures or daily activities, enhancing comfort and preventing unwanted liquid flow.

[0099] The lid may feature one or more radially peripheral venting channels forming part of or leading to the gas release mechanism. The venting channels may be positioned along the periphery of the lid, for example a periphery of the base and / or the cap. The venting channels may align with the uppermost region of the ostomy implant when worn. Gas, being less dense than liquids, tends to collect at higher regions, making a peripheral, top-oriented channel particularly effective for prompt degassing. The lid may comprise angled surfaces, such as sloped or funnel-like shapes, in the cap portion or the base portion, to guide ascending gas bubbles toward the venting channel. Alternatively, or additionally, the lid may comprise one or more splash guards, such as walls or ridges, preventing sudden splashing or fluid contact from blocking the venting channel(s). Alternatively, or additionally, the lid may comprise one or more hydrophobic membranes. The hydrophobic membranes may be located in or along the venting channel(s), ensuring only gas passes through while liquid is repelled.

[0100] In specific examples of the present disclosure, the lid may comprise multiple venting channels. The channels can be distributed around the periphery of the lid. The usermay select which channel to utilize depending on their orientation or posture. For instance, the controlling part could unlock or rotate one channel into alignment with the interior of the implant, closing off the others as needed. Alternatively, multiple channels might remain open to provide continuous, low-rate venting from multiple angles, further reducing the chance of fluid backflow.

[0101] As another variant, the gas release mechanism may incorporate a semi-permeable membrane or selective valve, for example an umbrella valve, near its radially outer edge, ensuring that even if the user’s posture changes, gas can still escape upward through the membrane while any liquid contact is deflected outward. Such membranes or valves may be integrated directly into the peripheral region of the lid’s cap portion, forming a combined splash guard and vent.

[0102] In a different embodiment, an internal guiding structure, such as a channel extending diagonally from a lower point on the interior side of the lid to a higher exit port on the exterior, can be formed within the lid’s thickness. This effectively re-routes gas to an elevated exit if top-side real estate is limited. The channel might be partially enclosed except for an intake opening near the implant interior and an outlet near the top edge or the peripheral side. This method helps keep the exit well above liquid levels, particularly if the user is mobile or lying at a slight angle.

[0103] For users requiring predictable, one-step securement, the gas release mechanism may be placed on the lid so that no reorientation is needed once attached: the user simply engages the controlling part to open the vent, e.g. pushes, slides or rotates the controlling part. In this approach, the combination of a fixed orientation between the lid and the implant plus a radially peripheral vent ensures that the vent port remains on the “upper” side in normal wear. Should the user’s orientation vary, the channel design might still incorporate angled routes or splash guards.

[0104] The directional attached features and venting channel arrangement may be combined. For instance, a directional attachment configuration might ensure the lid is locked in a single orientation, while containing one, two, or more, peripheral vents at slightly different angles or positions, each protected by its own internal barrier or hydrophobic membrane. As gas builds up, whichever vent is highest relative to the user’s posture will be the primary channel for degassing, automatically minimizing contact with fluid waste.In one embodiment of the present disclosure, the lid comprises an indicator, such as a visual indicator, to provide information on the present configuration of the lid, such as the closed configuration, the gas release configuration, and / or the open configuration. This indicator can range from a simple color-coded stripe that aligns with markings on the base portion to a clear window revealing a label or symbol when a specific configuration is engaged. Additional modalities might include audible clicks or tactile feedback, reinforcing a user’s certainty about the current state of the lid. The indicator may be placed on the cap portion, the base portion, or even the controlling part itself, depending on layout and user visibility considerations.

[0105] In one embodiment of the present disclosure, the lid further comprises a barrier structure disposed on an interior-facing side of the lid, the barrier structure being configured to reduce, such as limit or prevent, liquid waste from contacting the gas release mechanism, such as the one or more venting channels. Such a barrier structure can take many forms, ranging from simple mechanical baffles to advanced combinations of filter materials and splash guards. By blocking or diverting liquids away from the gas release mechanism, the barrier structure can help maintain consistent gas flow, reduce the risk of clogging or blockage, and minimize potential contamination or odour issues. In some implementations, the barrier structure may be positioned near an intake port or channel leading to the gas release mechanism, ensuring that even when the user is active or changes posture, liquid waste is not easily carried into critical pathways.

[0106] In some embodiments, the barrier structure comprises a mechanical barrier (for example a baffle, guard, or shield) without a hydrophobic membrane. In other embodiments, the barrier structure comprises a hydrophobic membrane without a mechanical baffle. In yet other embodiments, the lid comprises both a mechanical barrier and a hydrophobic membrane, optionally arranged together such that the mechanical barrier reduces direct exposure of the hydrophobic membrane to splashing or pooling effluent. Accordingly, the barrier structure may be implemented in multiple ways, and the various barrier features described herein may be used independently or in combination.

[0107] In one embodiment of the present disclosure, the barrier structure comprises a baffle, guard, or shield, such as wherein the barrier structure is formed integrally with at least one of the base portion or cap portion. A baffle may be designed as a small wall orridge strategically placed inside the lid, redirecting liquid flows away from openings. A guard may be a three-dimensional protrusion or cap-like structure that physically prevents liquid from splashing onto vent channels. A shield might include angled surfaces or enclosures that separate the main fluid path from the gas release mechanism. Forming the barrier structure integrally with the base portion or cap portion can reduce manufacturing complexity, enhance durability, and ensure precise alignment of the protective element with other lid features (such as a vent or aperture). This approach also allows for a more streamlined product profile, which can benefit users who prefer minimal added bulk and weight.

[0108] By way of example, a baffle may be formed as an annular ridge surrounding an intake opening of a vent channel, as one or more circumferential walls forming a labyrinth path, and / or as an overhanging cover that defines a downward-facing inlet such that splashed liquid is less likely to enter the vent channel. In some implementations, a guard or shield may define a chamber in which gas can collect and be directed toward a vent opening while liquid is diverted back toward the implant interior. In some implementations, a replaceable module may be mounted on an exterior side of the lid, for example in a recess of the cap portion or adjacent a valve housing, while in other implementations a replaceable module may be mounted on an interior-facing side and protected by a baffle.

[0109] In one embodiment of the present disclosure, the barrier structure comprises a filter element, such as a hydrophobic membrane, configured to allow gas to pass while restricting, such as substantially preventing, passage of liquids. As used herein, “hydrophobic membrane” refers to a membrane, mesh, or similar material that repels water-based fluids due to surface tension properties, while permitting gaseous molecules to diffuse or flow through. Example materials include expanded polytetrafluoroethylene (ePTFE), certain treated textiles, or microporous films. By placing a hydrophobic membrane in or near the gas release pathway, the lid can reliably vent gas while drastically reducing the risk of fluid intrusion. This approach can be especially advantageous where the user’s posture changes frequently, or where high humidity or condensation might otherwise block vent passages. Additional benefits include minimal user maintenance, as hydrophobic membranes are relatively resistant to liquid buildup and can preserve vent function even under splashing or jostling conditions.In one embodiment of the present disclosure, the barrier structure, or part thereof, is provided as a replaceable filter module or cartridge, removably mounted to the lid, such as wherein the filter module or cartridge comprises an odour-absorbing material and / or a hydrophobic membrane. This concept allows users to refresh or upgrade only the filter portion of the lid rather than replace the entire lid assembly. In practical terms, the filter module or cartridge could snap into a recess, clamp onto a dedicated mount, or be screw-threaded into position. Including odour-absorbing substances (for instance, activated carbon or zeolites) within the same module can enhance user comfort by minimizing unpleasant smells associated with gas discharge. Meanwhile, the hydrophobic membrane component ensures that liquids do not pass into or clog the gas release mechanism. By making the module removable, users can periodically clean or replace it for sustained performance, extending product life and reducing waste. Furthermore, this modular design offers manufacturers flexibility in offering different filter specifications, varied pore sizes, different odour-absorbing media, or more advanced filtration technologies, without redesigning the entire lid.

[0110] In some embodiments, the barrier structure and / or odour control unit is associated with a pressure relief valve such that gas passing through the pressure relief valve is filtered and / or odour-treated prior to exiting the lid. In other embodiments, the barrier structure and / or odour control unit is associated with a gas-release flow path established via an effluent outlet, for example in a partially opened state used for manual venting, such that gas escaping via the effluent outlet passes through a hydrophobic membrane and / or odour-absorbing material. In further embodiments, both a valve-based vent path and an effluent-outlet-based vent path are provided, and one or both paths may include barrier and / or odour control features.

[0111] In one embodiment of the present disclosure, the lid further comprises an odour control unit arranged to reduce or eliminate odours escaping through the gas release mechanism. Such an odour control unit can be situated anywhere along the path through which gas travels, but it is often positioned near or within the gas release mechanism to maximize efficacy in neutralizing malodours before they reach the external environment. In practical implementations, the odour control unit can be integrally formed with the lid or provided as a removable module for easy replacement, cleaning, or upgrading. Users may find this especially valuable in situations where odour concerns can significantly impact comfort and discretion. The odour control unit may be arranged to eliminate odour from escaping through an automated overpressurevalve, or wherein the user manually allows gas to escape, e.g. by actuation of a controlling part.

[0112] In some embodiments, the odour control unit is integrated in the replaceable filter module or cartridge, and in other embodiments it is provided separately along the gas channel.

[0113] In one embodiment of the present disclosure, the odour control unit comprises an activated carbon element, charcoal-based material, or another odour-absorbing medium positioned to treat gas exiting the ostomy implant. Activated carbon, for example, is known for its porous structure and high adsorption capacity, enabling it to capture a wide range of odour-causing molecules. Other absorbing media might include zeolites, silica gels, or specialized resin beads. These materials can be placed in a dedicated chamber, cartridge, or a compact filter assembly. By interfacing directly with the gas release mechanism, the odour control unit can selectively filter or neutralize malodours while permitting free passage of gas. The design may allow users to replace or regenerate the odour-absorbing medium once it becomes saturated, extending the lid’s useful life and adaptability to different users’ needs.

[0114] In one embodiment of the present disclosure, the barrier structure and the odour control unit are arranged sequentially along a gas channel formed in or by the lid, so that gas flows first through the barrier structure and subsequently through the odour control unit. Under this configuration, the barrier structure, such as a hydrophobic membrane or a mechanical baffle, blocks liquids or particulates before the gas enters the odour control region, thus preventing clogging or contamination of the odourabsorbing medium. This sequential approach can significantly enhance the durability and effectiveness of both features: the barrier structure ensures that only relatively clean, dry gas reaches the odour control layer, while the odour control unit reliably neutralizes odours. In some designs, the gas channel may be shaped or routed in such a way that the user can easily remove and replace the odour control component without disturbing the rest of the lid.

[0115] In some embodiments, the gas release mechanism comprises a gas channel in which a barrier structure is arranged upstream of an odour control unit, such that gas flows first through the barrier structure and subsequently through the odour control unit before exiting the lid. The barrier structure may reduce liquid or particulate ingress intothe odour control unit, thereby preserving the effectiveness and service life of odourabsorbing materials.

[0116] The gas channel may be formed integrally in the lid or may be defined by assembled components, and may be configured to allow removal or replacement of one or both of the barrier structure and the odour control unit.

[0117] Non-limiting examples — barrier and odour control with a pressure relief valve (PRV)

[0118] Example PRV-1 (stacked, in-series inside a valve housing):

[0119] In one example, the pressure relief valve is housed in a valve body integrated in the cap portion. A hydrophobic membrane is disposed upstream of a valve outlet such that gas exiting the valve passes through the hydrophobic membrane. An odour-absorbing medium is arranged downstream of the hydrophobic membrane in the same valve housing, for example as a porous plug or annular ring, such that gas passes first through the hydrophobic membrane and then through the odour-absorbing medium before exiting to the external environment. The membrane and / or odour-absorbing medium may be replaceable as a cartridge insertable into the valve housing.

[0120] Example PRV-2 (odour ring around outlet + membrane at inlet):

[0121] In one example, the pressure relief valve comprises an inlet opening communicating with the implant interior and an outlet opening communicating with the external environment. A hydrophobic membrane is arranged across the inlet opening (or across a channel leading to the inlet opening) to reduce liquid ingress to the valve. An odourabsorbing element is arranged circumferentially around the outlet opening, for example as an annular insert or collar within an outlet chamber, so that gas exiting the valve flows through or past the odour-absorbing element prior to discharge.

[0122] Example PRV-3 (protected “dry chamber” with baffle + filter stack):In one example, the pressure relief valve outlet communicates with a chamber defined by a baffle or shield structure that has a downward-facing or laterally facing gas inlet to reduce direct splashing. Within this chamber, a hydrophobic membrane is positioned to act as a liquid barrier, and an odour-absorbing medium is positioned downstream in the direction of gas flow. The chamber may be closed by a removable cap such that the hydrophobic membrane and / or odour-absorbing medium can be replaced without removing the lid from the implant.

[0123] Example PRV-4 (external snap-on module at PRV vent port):

[0124] In one example, the pressure relief valve vents through a vent port on an exterior surface of the lid. A replaceable module is mounted over the vent port, for example by snap-fit or a bayonet connection. The module comprises a hydrophobic membrane at an inlet side of the module and an odour-absorbing medium downstream in the module. Gas exiting the PRV thus passes through the module before release. In some variants, the module is vented laterally (side-vented) to reduce exposure to splashing and to provide a larger surface area for filtration.

[0125] Below are a few non-limiting examples provided of various arrangements of barrier elements and odour control units together with the effluent outlet.

[0126] In one example, the lid defines an effluent outlet for waste discharge and further defines a gas vent channel arranged adjacent the effluent outlet, for example in a side wall region of the outlet. The gas vent channel communicates with the interior via an opening that is exposed in the gas-release configuration. A hydrophobic membrane is disposed across the vent channel (e.g., at an outlet of the vent channel), and an odourabsorbing medium is positioned downstream of the hydrophobic membrane. In the open configuration, the effluent outlet opens for waste discharge while the vent channel remains positioned at a side region so as not to obstruct flow of waste through the main outlet.

[0127] In one example, a filter ring is arranged concentrically around the effluent outlet but outside the primary waste flow path. The ring comprises a hydrophobic membrane and / or an odour-absorbing medium disposed in an annular cavity. In the gas-release configuration, gas is directed into the annular cavity and released through the ring. Inthe open configuration, waste flows through the central effluent outlet while the annular cavity remains outside the main waste stream, thereby reducing fouling and avoiding restriction of discharge.

[0128] In one example, the effluent outlet is closed by a door or flap that is movable between a closed position and an open position for discharge. The door includes a dedicated vent window or vent aperture that is separate from the main discharge opening. A hydrophobic membrane is disposed across the vent window and an odour-absorbing element is positioned downstream of the membrane, for example within a thickness of the door. In this manner, gas can be vented through the vent window without opening the door to a discharge state, while full opening of the door remains available for emptying waste.

[0129] In one example, the gas-release configuration is obtained by forming a localized vent gap at a dedicated vent region of the interface between the cap portion and the base portion while maintaining sealing compression over a remaining circumferential portion. A hydrophobic membrane is positioned to cover or overlap the dedicated vent region (for example spanning a vent outlet or vent recess associated with the dedicated vent region), and an odour-absorbing medium is arranged downstream along the vent path. In the open configuration, the cap portion is moved further to fully open the effluent outlet for discharge, while the membrane / odour components remain positioned at the dedicated vent region and do not obstruct the primary discharge opening.

[0130] In any of the above examples, the hydrophobic membrane and the odour-absorbing medium may be provided together in a single replaceable module or provided as separate components, and one or both may be omitted depending on the intended application.

[0131] In one embodiment of the present disclosure, the base portion comprises a plurality of engaging structures arranged to engage a corresponding feature of the ostomy implant, such as a circumferential groove or undercut, to releasably secure the lid onto the ostomy implant. These engaging structures can be provided in various forms. The engaging structures may for example be engaging elements that engage upon activation of lid. For example, by rotation, sliding, or twisting, a part of the lid, the engaging elements may engage with the ostomy implant. Thus, the engaging elements may be one or more features that moves radially inwardly and / or upwardly upon activation of the lid, in order to engage with the ostomy implant. A similar activation,potentially in reverse direction, may be required in order to disengage the lid from the implant. Further, the engaging structure may be provided as snap-fit elements. For example small protrusions on the base portion that elastically deform when pressed into a matching groove on the implant, “snapping” back to lock in place. Further, the engaging structure may be provided as threaded interfaces. For example, with partial or full screw-thread arrangements enabling the lid to be twisted on or off the implant in a helical motion. Another alternative is to use magnetic coupling. For example, by the use of embedded magnets in the base portion that align with ferromagnetic sections or complementary magnets on the implant, allowing quick but secure attachment.

[0132] The engaging structure may be arranged so as to offer multiple points or regions of contact. Thereby, the engaging structures can help evenly distribute mechanical forces around the through-hole or the implant’s outer surface, reducing stress and the risk of leaks. This design also ensures that the lid can be readily detached for cleaning or replacement while still providing a reliable, fluid-tight seal in normal use. The user benefits from quick, intuitive attachment, while the implant remains securely closed against unintended dislodgement during daily activities.

[0133] In one embodiment of the present disclosure, the cap portion and the base portion are configured to provide tactile, audible, or visual feedback to a user when the lid transitions between different configurations of the lid. For example between locked and unlocked configurations, or between closed and open states, and / or to the gas-release configuration, to the closed configuration, and / or to the open configuration. The feedback mechanism may be provided as tactile surfaces, e.g. detents, audible cues, visual indicators, and / or electronic / illuminated features. Tactile surface may be provided as small ridges or spring-loaded components that produce a distinct “click” or resistance when the cap portion aligns with the base portion in a locked state. Audible cues may be provided by a built-in clicker, pop, or beep sound emitted when a locking hook snaps in place or a controlling part moves into the gas-release position. This might be particularly beneficial for users with limited visual acuity. Visual indicators may be provided as color-coded markings, windows, or alignment lines on the cap and base portions that match up only when the lid is fully locked or a certain configuration (e.g., gas release) is engaged. Electronic / illumination features may be provided by lightemitting diodes (LEDs) that turn on or change color when a sensor detects a locked state or a specific configuration is reached.The presence of this feedback can significantly boosts user confidence, ensuring that individuals can tell, without guesswork, whether the lid is securely attached, in a fully closed position, or has transitioned to a gas-release or open state. This is especially useful when the user must quickly determine whether the system is properly sealed against leakage or prepared for venting.

[0134] In one embodiment of the present disclosure, the lid further comprises at least one sealing gasket positioned between the base portion and the cap portion to ensure a fluid-tight connection in the closed state. The term “sealing gasket” here may refer to one or more compressible rings, O-rings, silicone beads, or other elastomeric interfaces that fill gaps between mating surfaces of the lid. In some variants, the gasket can be bonded or overmolded onto one of the lid components, ensuring no separate part is needed during assembly. The gasket can be removable or replaceable, allowing the user to swap in a fresh gasket if it becomes worn over time. The gasket can, in some examples, be multi-layered or multi-durometer, using different rubber or silicone densities to optimize resilience, pressure endurance, and user comfort. In some examples, the gasket is integrated with additional coatings, such as lubricious layers to reduce friction during assembly or antimicrobial additives to help maintain hygiene. This sealing arrangement contributes to reliable containment of both liquids and gas in the closed configuration, preventing accidental leakage or odour release. When combined with engaging structures and / or the feedback mechanism, the sealing gasket can ensure that the lid consistently upholds its intended function across multiple use cycles, posture changes, and cleaning routines.

[0135] In a further aspect, the present disclosure relates to a method of manufacturing a lid for an ostomy implant. The method may comprise the steps of forming or providing a base portion; forming or providing a cap portion; and assembling the base portion and the cap portion.

[0136] The lid may be arranged as disclosed elsewhere herein.

[0137] The embodiments described herein are provided for illustrative purposes and are not intended to limit the scope of the disclosure. Features described in connection with one embodiment may be combined with features of other embodiments, unless the context clearly indicates otherwise. Any feature or step described as being “in oneembodiment”, “in some embodiments”, “optionally”, “may”, “can”, or similar expressions is to be understood as non-limiting and as describing an example arrangement.

[0138] Unless stated otherwise, references to relative positions and directions such as “upper”, “lower”, “top”, “bottom”, “proximal”, “distal”, “inner”, “outer”, “radial”, “axial”, “circumferential”, “anterior”, and “posterior” are used for convenience of description and are to be interpreted with reference to an implanted and / or use condition as described herein, but do not imply any necessary absolute orientation in space.

[0139] Where ranges are described, it is intended that any value within the stated range, and any sub-range formed by any combination of endpoints and intermediate values, is encompassed. Where lists are used, it is intended that any item or combination of items from the list may be selected, unless the context clearly indicates otherwise. The terms “comprising”, “including”, and “having” do not exclude the presence of additional elements or steps.

[0140] Reference to “a”, “an”, or “the” element does not exclude the presence of a plurality of such elements. Unless explicitly stated, no specific order of steps is implied by the description of method steps. In the claims, reference numerals, if present, are provided only for convenience and do not limit the scope of the claims.

[0141] Detailed description of the drawings

[0142] The accompanying drawings are provided to illustrate example embodiments of the present disclosure and to assist in understanding the principles and features described herein. The drawings are not necessarily to scale, and like reference numerals may be used to designate like or corresponding elements across different figures. For clarity, not all elements may be shown in every figure, and some elements may be exaggerated, simplified, or omitted.

[0143] FIG. 1 A is a perspective view of a lid (1) for an ostomy implant (4). The lid (1) includes a cap portion (8) and a base portion (9), arranged around a through-hole (11). The base portion (9) may be configured to engage an open end of the ostomy implant (4), for example by using engaging structures or a circumferential groove. In various implementations, the cap portion (8) can be moved or manipulated relative to the base portion (9) to place the lid (1) in different states, such as a sealed state, an unsealed state, or a gas-release configuration. A gas release mechanism can be integrated in or near the cap portion (8), the base portion (9), or both, and may be actuated by acontrolling part (not shown in this figure) that regulates airflow while minimizing the chance of liquid waste contacting sensitive components. This arrangement allows the lid (1) to transition between preventing fluid communication entirely, selectively releasing gas to the environment, or allowing full access to the ostomy implant (4), depending on user needs.

[0144] FIG. 1 B illustrates a first embodiment of a controlling part (2) that may be integrated with or attached to the lid (1). The controlling part (2) includes an aperture (31), which can be aligned with the through-hole (11 ) of the lid or otherwise placed in fluid communication with the interior of the ostomy implant (4). A holding part (32) is provided to facilitate user handling and manipulation. In certain embodiments, the controlling part (2) may incorporate or interact with a gas release mechanism, for instance by having an actuatable valve or a pressure relief valve that automatically vents gas at a specific threshold. When moved into a gas-release configuration, gas can escape from the implant, for example via the aperture (31 ) or via a gas channel, provided on the cap and / or the base, of the lid. The gas can escape from the interior of the implant while liquid waste is kept inside, possibly aided by a barrier structure or hydrophobic membrane positioned adjacent to the aperture or the gas channel. The lid, such as the controlling part (2), may also house an odour control unit or be configured to receive a removable filter module, allowing customizable odour reduction.

[0145] FIG. 10 shows a second version of the controlling part (2), again featuring the aperture (31) and holding part (32), while additionally comprising a stopping arrangement (33). This second version is somewhat elongated, for instance extending beyond an edge of the lid (1), to provide easier access when the user needs to rotate, pivot, or slide the controlling part (2). The stopping arrangement (33) can limit the travel of the controlling part (2), defining one or more positions, for example, a closed position, a fully open position, or a gas-release position, for example in a way such that the user receives tactile and / or visual confirmation when switching states. In some embodiments, the controlling part (2) may carry a retaining part that must be manually released before shifting from a closed position to a gas-release position, thus preventing unintentional venting.

[0146] FIG. 1 D provides a patient-side view of the controlling part (2) from FIG. 10, revealing the aperture (31), holding part (32), and a retaining part (34). The retaining part (34) may be configured to keep the controlling part (2) stably in any chosen position,reducing inadvertent shifts or accidental disconnections. In one implementation, the retaining part (34) could cooperate with a manual actuator that toggles the gas release mechanism between a first (closed) and second (gas-release) configuration, irrespective of whether the lid (1) itself is fully opened. This design allows the cap portion (8) to remain sealed against the base portion (9) while still permitting controlled venting through the aperture (31). Variations of the retaining part (34) may include detent features, friction fits, or resilient clips that hold the controlling part (2) against movement unless a user-applied force surpasses a predetermined threshold. Such versatility enables the lid (1) to address multiple user needs and operational scenarios, consistent with the broad scope of the claims.

[0147] FIG. 2A provides a cutaway schematic illustration of the lid (1) in a position prepared to engage the ostomy implant (4). A cap portion (8) and a base portion (9) are shown arranged around a through-hole (11 ). One or more engaging units (10), configured to couple with a corresponding receiving part (14) of the implant (4), are disposed near or within the periphery of the through-hole (11 ). An actuator (15) may be positioned so as to facilitate or transmit motion to the engaging unit (10), ensuring that the lid (1 ) can be attached and secured onto the implant (4). Reference (19) indicates an axial direction along which part of the lid (1), for example, the cap portion (8), may be moved or rotated relative to the implant (4). In some embodiments, this axial or rotational motion draws the cap portion (8) into, onto, further into, or further onto the base portion (9), allowing a sealing unit (16) to engage the implant (4). Once engaged, the lid (1) may be arranged so that any fluidic communication between the through-hole of the ostomy implant (4) and the external environment occurs solely through an aperture (31) integrated with, or associated with, a gas release mechanism. This gas release mechanism can include one or more features such as a barrier structure to prevent liquid ingress, a pressure relief valve that opens above a certain internal pressure, or a manual actuator allowing the user to release gas without fully detaching the lid (1 ). FIG. 2B is a further cutaway view of the lid (1), illustrating how the engaging unit (10) transitions from a disengaged position to an engaged position with respect to the ostomy implant (4). Here, the cap portion (8) has been displaced with respect to the base portion (9) along the axial direction (19). Through a rotational motion, typically carried out by the patient, the cap portion is displaced in a motion in the axial direction (19), thereby the cap portion (8) may be drawn into, onto, further into, or further onto the base portion (9), causing the actuator (15) to push or pull the engaging unit (10)into an engaged position with a receiving part (14) of the ostomy implant (4). This coupled motion allows for different parts of the lid (1) to cooperate in achieving a secure attachment: rotating or sliding the cap portion (8) can produce an axial displacement that locks the engaging unit (10) in place. Once locked, a sealing unit (16) can form a fluid-tight interface against the implant (4), preventing leakage and ensuring that the only pathway for gas, or potentially fluids, if so configured, is governed by the gas release mechanism. In various implementations, the gas release mechanism may be activated or deactivated independently of the lid’s overall open or closed state, for instance by a controlling part integrated in the cap or base portion. Such an arrangement enables selective release of gas while maintaining a primary seal, meeting user needs for comfort and pressure regulation without requiring detachment of the lid (1 ).

[0148] FIG. 3A presents a perspective view of a lid (1) in an open position, arranged so that an aperture (31 ) of a controlling partcontrolling part (2) aligns with a through-hole (11) of the lid (1). The receiving structure (30) formed in the lid (1) is configured to accommodate or guide this controlling part (2), while a holding part (32) may be provided for convenient user manipulation. A closing part (52) is shown on the controlling part (2), which may be positioned to prevent leakage when in a different (e.g., closed) configuration. In the illustrated open state, fluid communication can occur between the ostomy implant (4) and an ostomy pouch (not shown), enabling waste transfer or venting of gas.

[0149] FIG. 3B depicts a side view of the lid (1) and controlling part (2) in the same open position, further detailing the manner in which an attachment portion (25) of the controlling part (2) may interface with the receiving structure (30). Here, the aperture (31 ) of the controlling part (2) remains aligned with the through-hole (11 ), maintaining unobstructed flow between the interior of the lid (1) and the ostomy pouch (not shown). The holding part (32) can be seen from the side, illustrating how a user might grasp or maneuver the controlling part (2). The closing part (52) may be designed to seal against a gasket or other sealing surface when shifted to a closed or partially closed configuration, though in this illustration it remains disengaged to permit fluid flow. FIG. 3C provides a top-down view of the lid (1) in the open position, showing the through-hole (11) concentrically aligned with the aperture (31 ) of the controlling part (2). The receiving structure (30) can be observed from above, revealing how itaccommodates or guides the controlling part (2) as it moves into or out of engagement with the lid (1). The holding part (32) is visible as a portion that may protrude sufficiently for user access, and the attachment portion (25) is oriented to couple with an ostomy pouch or another accessory. In this top-down orientation, the closing part (52) appears adjacent to the through-hole (11), ready to seal or block the aperture (31) when rotated or slid into a different position.

[0150] FIG. 4A shows a perspective view of the lid (1) in a closed position, preventing fluid communication between the ostomy pouch (not shown) and the ostomy implant (4). The cap portion (8) occludes the through-hole (11), with a closing part (52) providing a primary barrier against waste flow. In certain embodiments, a sealing unit (16) is arranged to form a liquid-tight seal where the lid (1) mates with the ostomy implant (4). The controlling part (24) is positioned such that no effluent can pass into or out of the implant, ensuring reliability when the system is not in active use.

[0151] FIG. 4B offers a side view of the lid (1 ) in the same closed configuration, illustrating how the cap portion (8) extends over the through-hole (11). The closing part (52) can be seen in profile, making contact with or moving adjacent to the sealing unit (16). From this angle, the controlling part (24) remains out of alignment for fluid transfer, keeping the flow path fully blocked.

[0152] FIG. 40 provides a top-down view of the lid (1) in its closed position, revealing how the through-hole (11) is covered or otherwise sealed by the cap portion (8) and closing part (52). The sealing unit (16) may reside along the interface where the lid (1) meets the ostomy implant (4), ensuring a leakproof joint. The controlling part (24) is in a configuration that blocks any passage of stomal waste, reinforcing the closed state from above.

[0153] FIG. 5A shows a perspective view of the lid (1) in a gas-release position, featuring a controlling part (24) without an aperture. In this alternative design, the activation tab (36) is actuated to move the controlling part (24) into a setting where gas can escape, for example from the closed configuration. Although no through-hole (11) or aperture (31) is visible in this embodiment, certain pathways or vent channels (not shown) may be integrated into the controlling part (24), the base portion (9), or the cap portion (8). For example, the pathways or vent channels may be arranged peripherally around the cap portion (8). A sealing unit (16) can still block liquids, ensuring only gas is released.FIG. 5B provides a side view in the gas-release position, illustrating how shifting or rotating the controlling part (24) disengages a sealing interface sufficient to let built-up pressure vent to the environment, while liquids remain contained by the sealing unit (16). The activation tab (36) is visible from the side, depicting how minimal motion can effect the transition from closed to gas-release. With no aperture in the controlling part (24), the open position for full fluid flow is absent in this particular design, emphasizing a dedicated gas-only release feature.

[0154] FIG. 50 is a top-down view of the lid (1) in its gas-release position for the alternative design lacking any aperture in the controlling part (24). The activation tab (36) can be seen along the edge or outer surface, showcasing how the user might access it without disturbing the main seal. In this view, the sealing unit (16) continues to interface with the ostomy implant (4), preventing liquid effluent from escaping, while gas may vent through an internal channel or peripheral vent route. This approach eliminates the conventional “fully open” configuration but grants users the option to relieve pressure via a dedicated gas path.

[0155] FIGS. 5A-C illustrate a gas-release position of the lid (1). An activation tab (36) on the controlling part (24) is activated to move from a closed configuration to one enabling degassing of the interior. The through-hole (11) and aperture (31) align such that gas escapes to the external environment while liquids remain blocked, facilitated by the sealing unit (16) and potential barrier structures. This embodiment may also include an odour control or filtering arrangement.

[0156] FIG. 6 presents an embodiment of the lid (1) featuring two activation tabs (36), each arranged on the controlling part (24) in such a way that they must be engaged simultaneously to transition the lid (1 ) from a closed configuration into a gas-release position. Unlike certain other designs, this embodiment does not rely on an aperture to enable fluid communication; rather, a dedicated venting route or channel (not shown) may exist within the lid (1) or at its perimeter. The cap portion (8) and base portion (9) remain operatively connected around a through-hole (11 ), ensuring the ostomy implant (4) remains sealed unless the user deliberately presses both activation tabs (36). This dual-tab safety approach helps avoid accidental degassing events in everyday use.

[0157] FIG. 7 shows a further embodiment of the lid (1) that also omits an aperture in the controlling part (24), instead relying on a push / pull action of two activation tabs (36) arranged so they can be moved in a direction away from the ostomy implant (4). Byactuating these tabs in unison, the user can prompt a gas-release configuration, allowing pressure to escape via channels or valve structures integrated in the lid (1). The cap portion (8) and base portion (9) stay coupled around the through-hole (11), thereby preserving a seal to prevent liquids or solids from leaking while still providing a dedicated mechanism for venting accumulated gas. This push / pull interface gives a straightforward user experience without requiring an additional aperture for emptying or fluid passage.

[0158] FIG. 8 provides a flow chart illustrating a method (400) for manufacturing or assembling a lid (1) for an ostomy implant. The method may include, in a first step (100), providing or forming a base portion, for example a base portion that contains or supports attachment features or valve seats. In a second step (200), a cap portion is provided or molded, the cap portion may be arranged to fit with the base portion in a manner that enables selective movement or sealing. A subsequent step (300) involves assembling these parts into a lid (1). The lid may incorporate the features described herein, such as one or more activation tabs (36), a gas-release mechanism, and any optional filter or odour control components.

[0159] The use of reference numerals in the description is intended to facilitate understanding of the embodiments and does not limit the scope of the disclosure. Elements indicated by the same reference numeral may perform the same or similar functions, but need not be identical in every embodiment.

[0160] Figure references

[0161] 1. Lid

[0162] 2. Controlling part

[0163] 4. Ostomy implant

[0164] 8. cap portion

[0165] 9. base portion

[0166] 10. engaging unit

[0167] 11. Through-hole

[0168] 14. receiving part

[0169] 15. Actuator

[0170] 16. Sealing unit

[0171] 19. Axial direction

[0172] 25. Attachment portion30. Receiving structure 31. Aperture

[0173] 32. Holding part

[0174] 33. Stopping arrangement 34. Retaining part

[0175] 36. Activation tab

[0176] 47. Implant opening 52. Closing part

Claims

38Claims1. A lid for an ostomy implant, comprising:a base portion configured to engage with an open end of the ostomy implant; a cap portion connected to the base portion, wherein the cap portion selectively permits or prevents fluid communication between an interior of the ostomy implant and an external environment; anda gas release mechanism configured to allow controlled release of gas from the interior of the ostomy implant to the external environment.

2. The lid according to claim 1 , wherein the lid comprises a controlling part that is actuatable to transition the lid between a plurality of configurations.

3. The lid according to claim 2, wherein the controlling part is movable relative to the base portion, such as by rotating, pivoting, or sliding, to transition the lid between the plurality of configurations.

4. The lid according to any one of claims 2-3, wherein the controlling part comprises or is formed as a button, tab, or lever.

5. The lid according to any one of claims 2-4, wherein the controlling part comprises at least one of a radially movable component, an axially slidable component, or a rotationally driven component to transition the lid between the plurality of configurations.

6. The lid according to any one of claims 2-5, wherein the controlling part is actuatable to transition the lid between:a closed configuration in which fluid communication between the interior of the ostomy implant and the external environment is prevented, and- a gas-release configuration in which the gas release mechanism permits release of gas to the external environment.

7. The lid according to any one of claims 2-6, wherein the lid is transitionable, by actuation of the controlling part, between three discrete configurations, comprising: (i) a closed configuration in which fluid communication between the interior of the ostomy implant and the external environment is prevented;39(ii) an open configuration in which an effluent outlet is opened to allow discharge of stomal waste; and(iii) a gas-release configuration in which a gas release flow path from the interior to the external environment is established while the lid remains in a waste-retaining condition such that discharge of liquids and / or solids is restricted relative to the open configuration.

8. The lid according to any one of claims 2-7, wherein the controlling part has three detent positions corresponding to the closed, gas-release, and open configurations.

9. The lid according to any one of claims 2-8, wherein the lid comprises one or more stop surfaces configured to mechanically limit movement of the controlling part to define each configuration10. The lid according to any one of claims 8-9, wherein transition into each configuration produces a detent click and / or increased resistance.

11. The lid according to any one of claims 8-10, wherein the cap portion and the base portion are configured to provide tactile, audible and / or visual feedback upon transition between locked and unlocked configurations and / or between closed and open configurations.

12. The lid according to any one of claim 2-11 , wherein the lid comprises an indicator, such as a visual indicator, to provide information on the present configuration of the lid.

13. The lid according to any one of claim 2-12, wherein the controlling part includes a retaining part, configured to prevent transition from the closed configuration to the gas-release configuration unless the retaining part is actuated.

14. The lid according to claim 13, wherein entry into the gas-release configuration requires a two-step actuation comprising (a) actuating the retaining part and (b) moving the controlling part.4015. The lid according to any one of claim 2-14, wherein the controlling part is actuatable to manually release gas by transitioning the lid from the closed configuration to the gas-release configuration.

16. The lid according to any one of claim 2-15, wherein in the gas-release configuration the gas release flow path is established via the effluent outlet in a partially opened state that restricts discharge of liquids and / or solids relative to the open configuration.

17. The lid according to claim 16, wherein the partially opened state is obtained by reducing a compressive sealing force between the cap portion and the base portion to form a vent gap.

18. The lid according to claim 17, wherein, in the gas-release configuration, the gas release flow path is formed by a localized vent gap at a dedicated vent region, while an annular seal between the cap portion and the base portion remains compressed over a remaining circumferential portion.

19. The lid according to any one of claims 16-18, wherein the lid comprises a dedicated vent region located at an upper part of the lid in a use orientation, and wherein an effluent region is located at a lower part of the lid in the use orientation.

20. The lid according to any one of the preceding claims, wherein the gas release mechanism comprises a pressure relief valve arranged to automatically release gas when a pressure in the interior of the ostomy implant exceeds a threshold pressure, and to remain closed below the threshold pressure.

21. The lid according to claim 20, wherein the pressure relief valve is manually openable by a user-actuatable member.

22. The lid according to claim 21 , wherein the user-actuatable member comprises the controlling part or is operatively coupled to the controlling part.

23. The lid according to any one of claims 20-22, wherein the pressure relief valve is positioned within an upper sector of the lid in a use orientation, the upper sectorbeing defined with respect to a direction opposite gravity around a longitudinal axis of the lid.

24. The lid according to claim 23, wherein the base portion comprises a keying feature configured to cooperate with a complementary feature of the ostomy implant to constrain mounting of the lid to a predetermined rotational orientation about the longitudinal axis, such that the pressure relief valve is located within said upper sector in the use orientation.

25. The lid according to claim 24, wherein the keying feature constrains the rotational orientation such that the pressure relief valve is located on an anterior side of the lid in the implanted condition, the anterior side facing generally toward a front of the patient.

26. The lid according to any one of the preceding claims, wherein the gas release mechanism, or a channel of the gas release mechanism, is arranged at a location of the lid that facilitates venting of accumulated gas while minimizing liquid interference.

27. The lid according to any one of the preceding claims, wherein the gas release mechanism is positioned in an upper sector of the lid in a use orientation to reduce contact with effluent.

28. The lid according to claim 27, wherein the base portion comprises a keying feature configured to constrain mounting of the lid to the ostomy implant to a predetermined rotational orientation such that the gas release mechanism is located in the upper sector in the use orientation.

29. The lid according to any one of the preceding claims, further comprising a barrier structure disposed on an interior-facing side of the lid, the barrier structure being configured to shield a vent opening and / or a flow path of the gas release mechanism so as to reduce contact of liquid waste with the gas release mechanism.

30. The lid according to claim 29, wherein the barrier structure comprises at least one of a baffle, guard, or shield, optionally formed integrally with the base portion and / or the cap portion.

31. The lid according to any one of claims 29-30, wherein the barrier structure comprises a hydrophobic membrane disposed across a vent opening of the gas release mechanism such that gas released through the gas release mechanism passes through the hydrophobic membrane, and wherein the hydrophobic membrane is supported by, or arranged in cooperation with, a baffle, guard or shield configured to form a tortuous path for liquid waste.

32. The lid according to any one of claims 29-31 , wherein the barrier structure, or a part thereof, is provided as a replaceable filter module or cartridge removably mounted to the lid.

33. The lid according to claim 32, wherein the replaceable filter module or cartridge comprises an odour-absorbing material and / or a hydrophobic membrane.

34. The lid according to any one of the preceding claims, further comprising an odour control unit arranged to reduce or eliminate odours in gas released through the gas release mechanism.

35. The lid according to claim 34, wherein the odour control unit comprises an activated carbon element, or another odour-absorbing medium positioned to treat gas released from the ostomy implant.

36. The lid according to any one of claims 34-35 dependent on any one of claims 29- 33, wherein the barrier structure and the odour control unit are arranged in series along a gas channel formed in or by the lid and / or defined between the cap portion and the base portion in the gas-release configuration.

37. The lid according to any one of the preceding claims, wherein the base portion comprises a plurality of engaging structures configured to engage a complementary feature of the ostomy implant to releasably secure the lid to the ostomy implant.

38. The lid according to any one of the preceding claims, further comprising at least one sealing gasket positioned between the base portion and the cap portion to provide a fluid-tight seal in the closed configuration.

39. A method of manufacturing the lid of any one of the preceding claims, the method comprising:providing a base portion;providing a cap portion; andassembling the base portion and the cap portion.

40. The method of claim 39, wherein the lid is arranged according to the lid of any one of claims 1-38.

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