Limb protection device

Abstract

The present invention relates to a limb protection device for protecting a user's hand. The device comprises a protection member configured to protect at least a part of a user's limb including a hand, including an opening arranged at a proximal end of the protection member, the opening being dimensioned to allow the user's limb to be inserted into the protection member. The device further comprises means for restricting the opening relative to the user's limb such that, once the limb is inserted and the opening is restricted relative to the user's limb, the limb cannot be withdrawn through the opening. The device further comprises a closure member movable by the user's hand within the protection member to a closed position such that at least a part of the limb is confined within the protection member, and locking means for securing the closure member in the closed position.

Description

Technical Field

[0001] This invention relates to limb protection devices, and more particularly to limb protection devices for protecting the user's hands. Background Technology

[0002] Human and animal limbs often require protection for a variety of reasons. For example, when a limb is injured, protecting it to prevent further harm is generally beneficial. Limbs are also frequently protected to prevent contact with other parts of the body, such as eczema. For instance, a person with atopic dermatitis (eczema) may use limb protectors to prevent their hands from being used to scratch their body. Traditional solutions for eczema include soft gloves or clothing with mittens. However, these solutions only provide surface protection, as they still allow the fabric layer covering the fingers to be scratched. Furthermore, the act of rubbing the fabric against the skin, rather than directly scratching, can peel off the outer layer of skin (peeling), leading to stinging and open wounds.

[0003] The aforementioned types of gloves and mittens are not only ineffective in preventing scratches, but these gloves and clothing are often removed without being noticed while sleeping, and may not be breathable enough, making them unhygienic and uncomfortable due to the heat.

[0004] Other solutions for protecting a user's hands include protective devices made of flexible yet rigid materials, designed to extend around the user's hand. These devices typically include a wrist strap at one end for securing the device to the user's wrist or arm. Due to the inherent problem of at least one hand being protected, no meaningful function can be performed, and it is difficult for the user to put on and take off such devices themselves, often requiring a third party.

[0005] The present invention aims to solve or at least alleviate some of the problems mentioned above. Summary of the Invention

[0006] From a first aspect, the present invention provides a limb protection device for protecting a user's hand, comprising: a protective member configured to protect at least a portion of a user's limb, including the hand, including an opening disposed at a proximal end of the protective member, the size of which allows insertion of the user's limb into the protective member; a tool for restricting the opening relative to the user's limb such that once the limb is inserted, the opening is restricted relative to the user's limb, and the limb cannot be retracted through the opening; a closing member movable within the protective member by the user's hand to a closed position, such that at least a portion of the limb is confined within the protective member; and a locking device for securing the closing member in the closed position.

[0007] Therefore, a limb protection device is provided that allows the user to connect and optionally disconnect it independently without any further assistance from a third party. This can be achieved using the same hand protected by the limb protection device. For example, the user can first insert their hand through an opening in the protective member, and then apply a tool relative to the user's limb to restrict the opening so that their hand cannot retract through the opening. They can then move the closing member to the closed position and operate the locking device to hold the closing member in the closed position. The locking device can be operated by the hand within the protective member. Thus, with this arrangement, the user does not rely on a third party to connect the limb protection device. The self-connecting and self-disconnecting capability of the limb protection device can increase the number of applications for limb protection devices because, for example, it can be used at home (where assistance from a third party may be infeasible or impractical).

[0008] Limb protectors can be used to protect the hand contained within the protective device. Additionally or alternatively, limb protectors can be used to prevent the hand within the protective device from contacting, for example, other parts of the user's body. For example, limb protectors can be used to physically prevent a user from using their hands and fingers to harm themselves or others in any possible way (e.g., scratching; punching; pulling an IV line; wrist cutting; thumb sucking; nail biting; compulsive eating; drug abuse or addiction, drinking, smoking, etc.).

[0009] Limb protection devices may be particularly beneficial for physically preventing scratching in patients with atopic dermatitis (eczema) or any other condition associated with chronic, intractable pruritus (such as contact dermatitis, psoriasis, urticaria, xerosis, chronic simple lichen simplex, lichen planus, nodular prurigo, pityriasis rosea, Hodgkin's disease, HIV, scabies, chronic liver and kidney disease, etc.). It is estimated that chronic pruritus afflicts approximately 15% of the population and can severely impair quality of life and emotional well-being. Protection devices can serve as an adjunctive therapeutic tool, enabling patients to better control their scratching. The self-attaching and self-detaching capabilities of limb protection devices make them particularly suitable for applications where the user may wish to control the wearing of the device without the assistance of others.

[0010] Limb protectors can be particularly useful during sleep when the intensity of itching is often more severe and scratching becomes subconscious and involuntary. Limb protectors can be made to a specific size that allows the wearer complete freedom of arm movement, permitting scratching movements without actually causing any skin damage. Preventing scratching in this way allows for skin relief, aids the healing process, and increases the patient's chances of eventually breaking the vicious cycle of scratching. Limb protectors can also be useful during remission by monitoring for signs of an initial flare-up to control sudden relapses and prevent any relapses from causing further aggravation.

[0011] The tool for restricting the opening may include a restricting element, separate from the protective member, configured to be attached around the user's limb such that the external dimensions of the restricting element are larger than the opening, thereby restricting the opening relative to the user's limb. When attached to the limb, the size of the restricting element allows it to move within the protective member. While the restricting element does not directly restrict the size of the opening itself, its function is to increase the effective outermost dimension of the user's limb, thereby effectively restricting the size of the opening relative to the user's limb. This restricting element provides a simple method to restrict the opening relative to the user's limb. Furthermore, this restricting element can advantageously allow the limb protection device to move more freely relative to the user's limb. For example, it can allow lateral, longitudinal, and rotational movements relative to the user's limb. This freedom of movement can provide greater comfort to the user and potentially increase the time during which the user can comfortably wear the limb protection device. This freedom of movement can be achieved through appropriate protective members, restricting elements, the size of the opening, and the position of the closing member within the protective member. The distance between the closing member in the closed position and the opening defines the longitudinal degree of freedom within the protection device. Additionally, by not fixing the position of the limb protection device and allowing movement provided by the restricting element, blood flow to the user's hand does not need to be restricted.

[0012] Of course, any other suitable tool can be provided to restrict the opening, which can be operated by a hand protected by a limb protective device. For example, a tool for restricting the opening may include a mechanical iris operable within a limb protective device.

[0013] The protective device itself can be any suitable size, and its size should allow the user to move their hand within the device, such as bending their fingers or forming a fist. The size of the protective device does not need to restrict the user's arm movement. For example, its size could be such that it does not exceed the user's elbow. This allows the user to bend their arm. This freedom of movement can increase the comfort of the protective device, which may mean that the user is more likely to wear it and less likely to remove it prematurely. In cases where limb protective devices are used to prevent users from agitating their eczema, this may mean that the user wears the device for a longer period of time, thus minimizing scratching.

[0014] In addition to being operable to secure the closure member in the closed position, the locking device can also be configured to allow the user to operate it to release the closure member from the closed position and to move the closure member to the open position. This allows the user to self-disengage and self-connect the device. Therefore, the user can remove the protective device without external assistance, giving the user complete control over wearing the limb protection device. This allows the user to remove the limb protection device in emergency situations, thus requiring less supervision. Any suitable locking device can be provided for this purpose.

[0015] The locking device can be configured to release after a limb within the protective member performs a predetermined action, wherein the arrangement of the closing member allows it to move from a closed position to an open position via a limb within the protective member. The predetermined action can be any action requiring conscious effort and unlikely to be performed accidentally or subconsciously. Therefore, requiring the user to perform a predetermined action can intentionally complicate the release of the locking device for the user, thus creating an obstacle to removal. This may mean that the user must consciously decide to release the locking device and perform the appropriate predetermined action. For example, such an arrangement could prevent the user from subconsciously removing the protective device during sleep. The predetermined action can be any suitable action.

[0016] The locking device may include a threaded portion on a closing member and a corresponding threaded portion on a protective member for connection to each other. When the threaded portions are fully engaged, the user must perform a predetermined operation involving rotation of the closing member relative to the protective member to release the closing member. This may be difficult for the user to perform subconsciously, thus requiring them to actively decide to remove the protective device and perform the predetermined operation. Each of the threaded portions and the corresponding threaded portions may include at least a half-turn, preferably a full turn of thread. Therefore, the user must rotate the closing member and the protective member relative to each other by at least 180 degrees before the locking device can be overcome. This amount of rotation thus provides an obstacle to disengagement and can therefore improve compliance with wearing the protective device. Of course, more turns of thread can be provided, thus requiring multiple rotations of the closing member relative to the protective member.

[0017] The locking device may include a latching mechanism configured to secure the closure member in a closed position. This arrangement allows the closure member to be easily moved to and secured in the closed position. This can increase the speed at which the protective device can be attached to the user. Regarding release, the user may need to apply force to one or more latching mechanisms simultaneously to release the locking device, thereby allowing the closure member to move to the open position. For example, the operation of multiple latching mechanisms can thus constitute a predetermined action, making it more difficult for the user to remove the protective device. Any suitable latching mechanism can be used.

[0018] The locking device may include at least one radially extending element on one of the closing member or the protective member and at least one female receiving portion for receiving the radially extending element on the other of the closing member or the protective member. Therefore, this arrangement can provide, for example, a bayonet-type fitting. In this arrangement, it may be necessary to rotate and move the closing member relative to the protective member to move it into a closed position and also to move it out of the closed position. Therefore, this movement can constitute a predetermined operation that the user must perform to release the locking device. Movement in multiple directions may complicate the user's required operation, making it more difficult for them to subconsciously or accidentally remove the protective device. The locking device may include a bayonet-type fitting or a Storz connector.

[0019] The locking device may include a locking member that can be driven to a locked position, wherein the locking member secures the closing member in the closed position. The locking device may also include a motor configured to drive the locking member, for example, into and out of the locked position.

[0020] In another alternative, the locking device may include an electromagnetic locking device. This electromagnetic locking device can be configured to drive the locking member into and out of the locked position. In any of the above variations, the locking device is electronically controlled, for example by a motor or by an electromagnetic locking device. The locking device may also include a switch within the guard, which the user must operate to operate the electromagnetic locking device or the motor. The switch can determine the predetermined action that the user must perform to release the locking device. With proper design of the switch, it can be ensured that the user must exert continuous effort to release the locking device. For example, this may require pressing buttons in a specific sequence. Any suitable method can be provided to achieve this purpose.

[0021] The protective device may include a further locking mechanism operable from the outside of the protective member. Any suitable further locking mechanism can be provided. For example, the further locking mechanism may include a latching arrangement that secures the closing member in the closed position. Thus, with such a further locking mechanism, the protective device can be secured to the user in a manner that prevents the user from releasing the protective device with their hand inside the protective member. This may be useful if a third party (e.g., a caregiver) wishes to have some degree of control over when the user can remove the protective device. Once the further locking mechanism has been released from the outside of the protective member, it can be operated with a hand inside the protective member.

[0022] The closing member and the protective member can be provided as separable components. For example, in the case of a threaded closing member and a protective member, these two parts can be separated from each other. The closing member can alternatively be provided as a sliding member that slides relative to the protective member to the closed position and does not require rotation to hold it in place. For example, the closing member can be configured to slide within at least one groove in the protective member. Any suitable locking device can be provided to hold the sliding closing member in place. For example, at least one snap-fit ​​device can hold the closing member in its closed position.

[0023] In another alternative, the closure member can be pivotally mounted to the protective member. In this case, although they are independent functional components, the closure member can be connected to the protective member. This makes it easier for the user to operate the closure member, as it is always mounted on the protective member and does not require the user to pick it up separately. Such a pivotally mounted closure member may include a snap-fit ​​device at one end for engaging with the protective member to secure the closure member in the closed position.

[0024] The closure member may include a handle for moving the closure member relative to the protective member. The handle allows the user to manipulate the closure member more easily. For example, the handle allows the user to pull and / or twist the closure member relative to the protective member. The handle itself can confine the user's hand within the protective member; that is, it can be used to prevent the user's hand from passing through the distal end of the protective member. For example, the size of the handle can prevent the hand from passing through the end of the protective member. However, this is not necessary; the handle can simply be formed as part of the closure member without contributing to confining the hand within the protective member. The handle can take any suitable form. For example, the handle can take the form of a rod-like bar suitable for the user's hand to grasp. Alternatively, the handle can be provided in other ways, such as in the form of a ring. The handle can advantageously provide internal features that the user can grasp, which can provide interference for the user, such as interference with itching in the case of a patient with eczema.

[0025] The closing member, at least when in the closed position, can be contained within the outer wall of the protective member. This advantageously means that the exterior of the protective device can be formed from a single, smooth piece of material. In other words, there may be no discontinuities on the outer surface of the protective member, which would otherwise form at the junction between the closing member and the protective member. This minimizes the number of surfaces of the protective device that can be used for gripping. However, this is certainly not essential, and the closing member can simply abut against one end of the protective member. In this case, the shapes of the protective member and the closing member make the connection formed between them as smooth as possible. For example, this can be achieved by rounding the portions of the closing member and the protective member that are adjacent to each other.

[0026] The use of a limiting element as a tool for restricting an opening, which allows a user's limb to move relative to a protective device by its own power, is novel and inventive. Therefore, from another perspective, the present invention provides a limb protection device comprising: a protective member configured to protect at least a portion of a user's limb, including an opening sized to allow insertion of the user's limb into the protective member; and a limiting element, separate from the protective member and configured to be connected around the user's limb such that the external dimensions of the limiting element are larger than the opening, preventing the user's limb from retracting through the opening, and allowing the limb to move within the protective member when the limiting element is connected to the limb.

[0027] This type of limb protection device can provide the same advantages as those described above regarding restrictive elements, namely, it allows for at least a small amount of movement of the protection device relative to the user's limb, which can increase the relative comfort of the protection device. Limb protection devices according to this aspect are not limited to use on the human hand; rather, they can be used to protect any limb, which can be a human or animal limb. While the user can still attach the protection element themselves, in another embodiment of the invention, the protection element can be attached to the limb by a third party (e.g., a caregiver).

[0028] The dimensions of the restraining elements and openings allow for at least one of lateral, rotational, and longitudinal movement of the user's limb relative to the protective member while the limb is within the protective member. The protective member may not cover the entire limb, but may be used to cover a portion of the user's limb.

[0029] This other type of limb protection device may include a closure member arranged to permanently prevent the user's limb from passing through the distal end of the device.

[0030] The following are features that can be applied to embodiments of the first or another aspect of the present invention.

[0031] Provided herein, the closure member may define at least one hole extending through the closure member. The at least one hole may allow external stimulation of the user's hand within the protective device without removing the device. Additionally, the at least one hole may allow for limited hand function, such as allowing them to operate a door handle. The at least one hole may serve as a vent. This airflow can increase the comfort of the protective device for the user. The hole may be located within the closure member itself. Alternatively, the closure member may only partially close the protective member, so that the unclosed opening portion of the closure member can form at least one vent. For example, in the case of a protective member with a circular cross-section and a hinged closure member in the form of a bar, the hole may be formed on either side of the bar between the bar and the inner wall of the protective member.

[0032] The restraining element may include a fastening element configured to secure the restraining element to a location around a user's limb. Once the restraining element is attached to their limb, the user can operate the fastening element, and the fastening element can secure the restraining element in a manner that prevents removal from the user's limb without releasing the fastening element. For example, the fastening element may include a strap. The strap can secure the restraining element in any suitable manner. For example, the strap may include at least one of Velcro, buttons, or buckles, configured to secure the strap in the position where the restraining element is secured.

[0033] The restraining element provided herein may have an adjustable size. The restraining element may include any suitable tool that allows for adjustment of its size. For example, adjustment can be made via an adjustable strap. This allows the restraining element to be adapted to many different users and / or limbs. As mentioned above, such a strap can also be used as a fastening element.

[0034] Users can pass their limbs through openings in the restraint element without opening it. For example, the restraint element may be partially expandable to allow this form of operation. This can be achieved by a restraint element made of an expandable (e.g., elastic) material. However, the restraint element can be configured such that it can open to receive the user's limb and close to secure it around the user's limb. This makes it easier to attach the restraint element to the user's limb.

[0035] The restraining element can be at least partially deformable. This can provide greater comfort to the user because it effectively provides cushioning between the limb and the protective member. The restraining element can be deformable so that it is comfortable for the user and rigid enough not to be forced through openings in the protective member, thus providing its function of preventing the limb from retracting through the openings. For example, the restraining element can be filled with a deformable material. The deformable material may include hollow fiber filler or foam. Additionally, or alternatively, the restraining element may be filled with multiple small balls that contribute to the deformability of the restraining element.

[0036] The restraining element can be inflatable. This may advantageously mean that the restraining element can also be confined within the protective member, and that inflation only occurs around the user's limb when it is inserted into the protective member. An inflatable restraining element is also comfortable for the user because it is at least partially deformable.

[0037] Limb protection devices may also include vents at the proximal end of the protective member. This can further facilitate airflow into the protection device, thereby improving user comfort. When combined with embodiments in which the protection device has more vents, these additional vents can help facilitate airflow through the device, thereby improving comfort. Furthermore, since the proximal end of the protective member may frequently come into contact with a part of the user's limb, such as their arm or wrist, vents at that end may increase airflow to the part of the protection device that most frequently comes into contact with the user's limb. This can improve comfort and increase the period during which the limb protection device can be worn comfortably.

[0038] At least the protective components can be transparent. This advantageously allows the user or caregiver to visually inspect and monitor the user's limbs without removing the protective device. Of course, other parts of the protective device can also be transparent, such as the closure components.

[0039] At least the protective member can be formed from a sheet of material comprising a circular proximal end and a circular distal end. By using a sheet, the weight of the protective member, and consequently the weight of the protective device, can be minimized. This may make the protective device more comfortable for the user. The circular proximal and distal ends prevent the user from using the ends of the protective device as a scratching tool. Furthermore, the circular proximal and distal ends ensure that the sheet is not uncomfortable for the user. The circular proximal and distal ends can be implemented in any suitable manner. For example, the proximal and distal ends can be molded to be circular. Alternatively, or additionally, circular elements can be attached to the proximal and distal ends. The circular elements can be made of the same material as the protective member. However, different materials can be used to make the circular elements. The protective member may include foam disposed on its inner surface. This can improve the comfort of the protective device for the user.

[0040] At least the protective component can be formed of at least a semi-rigid material. This material can protect the limb within the device and also prevent the user from using the limb for other purposes, such as scratching. The semi-rigid material can be partially flexible and deformable, but rigid enough that the user cannot perform any function through the protective component, such as preventing the user from scratching. The protective component can be formed of a rigid material. For example, the protective component can be formed of plastic (e.g., rigid plastic foam). Using plastic can advantageously provide a cool-to-the-touch surface and soothe inflamed skin. Of course, other components of the limb protection device can also be made of plastic.

[0041] Limb protection devices may also include tools for determining the duration for which a user wears the device. This may allow the user or caregiver to monitor the wearing status of the limb protection device more accurately. In some applications where compliance is important, this may provide useful additional information to the user or caregiver. Any suitable method may be provided for this purpose. For example, tools for determining the duration of limb protection device wear may include at least one of a thermal sensor, a photoelectric sensor, and an accelerometer. An accelerometer can indirectly measure wear time while also measuring the user's movement and agitation, such as when the user is sleeping. The protection device may be configured to provide an alarm based on the user's wear time, such as an alarm to a caregiver. This can be achieved by any suitable means and the alarm may be provided on the protection device or other devices, such as mobile devices.

[0042] Alternative methods can be provided to monitor wear compliance. For example, the protective device can be equipped with a breakable element that disconnects when the device is removed. This can be in the form of a wire or other suitable element. The protective device may include markings that make realignment difficult during removal and reconnection. This misalignment allows caregivers to easily determine that the device has been removed.

[0043] The protective member may include multiple holes extending through it. This may increase airflow into the protective member. However, the protective member may include a smooth outer surface. This arrangement can advantageously prevent the user from scratching with the protective member, as a smooth surface is not suitable for scratching. The interior of the protective member may be smooth to provide comfort for the limb within the protective member.

[0044] For better understanding, embodiments of the invention will now be described by way of non-limiting example with reference to the accompanying drawings, in which:

[0045] Figure 1 This is an exploded view of the limb protection device;

[0046] Figure 2 yes Figure 1 A cross-sectional side view of the limb protection device shown;

[0047] Figure 3 yes Figure 1 End view of the components of the limb protection device shown;

[0048] Figures 4A-4D It is shown Figure 1 The diagram shows the limb protection device connected to the user's hand and arm;

[0049] Figure 5A and 5B It is shown Figure 1Cross-sectional side view of a variant of the limb protection device shown;

[0050] Figure 6A and 6B It is shown Figure 1 A cross-sectional view of another variant of the limb protection device shown;

[0051] Figure 7 yes Figure 1 A perspective view of a variant of the handle of the limb protection device shown;

[0052] Figure 8 yes Figure 1 A cross-sectional side view of a variant of the protective component of the limb protection device shown;

[0053] Figure 9A and 9B It includes alternative locking devices. Figure 1 A cross-sectional side view of a variant of the protective component of the limb protection device shown;

[0054] Figure 10 yes Figure 1 A perspective view of a variant of the closing member of the protective component of the limb protection device shown;

[0055] Figure 11 Is with Figure 10 A perspective view of a variant of the protective member used together with the shown closing member;

[0056] Figure 12 yes Figure 1 A cross-sectional view of a variant of the locking device of the protective component of the limb protection device shown;

[0057] Figure 13 It is a perspective view of a variant with adjustable-sized limiting elements;

[0058] Figures 14A-14B This is an end view of another variant of the opening and closing limiting element;

[0059] Figure 15 A cross-sectional side view of another variant of a limb protection device with a fixed closure member is shown;

[0060] Figure 16 A cross-sectional side view of another variant of the limb protection device without closure components is shown; and

[0061] Figure 17 It shows Figure 16 A perspective view of a limb protection device used to protect the user's legs. Detailed Implementation

[0062] Figure 1A perspective view of a limb protection device 2 (hereinafter referred to as device 2) for protecting a user's hand according to an embodiment of the present invention is shown. Device 2 includes a protective member 4 configured to protect at least a portion of the user's limb, including the hand. The protective member 4 is formed of a cylindrical tube 6. Although in the illustrated embodiment, the protective member 4 is formed of a cylindrical tube 6, this is not necessary, and the protective member 4 may have any suitable shape depending on its specific application. For example, the cylindrical tube 6 of the protective member 4 may have a truncated cone shape. The cylindrical tube 6 does not necessarily have a circular cross-section; instead, the cylindrical tube 6 may have any other cross-sectional shape, such as an ellipse. Figure 1 As shown, the protective member 4 can be formed from a sheet material, which may mean that the weight of the device 2 is kept to a minimum. The protective member 4 can be formed from at least a semi-rigid material. This material can be partially flexible and deformable, but rigid enough that it is impossible for a user to perform actions through the protective member 4, for example, to prevent them from scratching. For example, the wall thickness of the cylindrical tube 6 can be between 0.3 mm and 3 mm.

[0063] Device 2 includes a limiting element 8 separate from the protective member 4. The limiting element 8 has an annular shape. While in the illustrated embodiment the limiting element 8 has an annular shape, the limiting element 8 can have any other suitable form and is not necessarily annular; for example, it can be formed as a hollow cylinder. The limiting element 8 includes a hole 18 through which a user's limb can be inserted. The limiting element 8 is deformable and at least partially expandable. This allows the user to push their hand through the opening 18 to attach the limiting element 8 to their limb. The limiting element 8 may include a fastening element 9 configured to secure the limiting element 8 in place on the user's limb. This fastening element prevents the limiting element 8 from being removed from the user's limb without releasing the fastening element 9. The fastening element 9 includes a press stud 11 that can be secured to its corresponding fastener 11A to secure the fastening element 9 around the user's limb. Any other suitable fastening element capable of securing the limiting element 8 to the user's limb can be used.

[0064] For example, the restraining element may be filled with small plastic granules of at least one of polystyrene, polypropylene, or polyethylene. Alternatively, or additionally, the restraining element 8 may be filled with hollow fiber filler, such as that made of polyester. The restraining element 8 is washable. Similarly, the restraining element 8 is inflatable. The restraining element 8 serves not only to confine the user's hand within the device, as will become clearer with reference to the following figures, but also to act as a cushioning pad for protecting the user's wrist within the protective member 4.

[0065] Device 2 also includes a closing member 10. The interaction between the protective member 4, the limiting element 8, and the closing member 10 in use will be described in more detail below with reference to the accompanying drawings. Figure 1 As shown, the closing member 10 includes a threaded portion 12, which is configured to engage with the threaded portion 20 on the protective member 4 (e.g., Figure 2 (As shown) engagement. Threaded portions 12 and 20 together provide a locking mechanism.

[0066] The closure member 10 includes a hollow cylinder 16, except for a handle 14 extending between the outer walls of the cylinder 16. The handle 14 can be a separate component, attached to the cylinder 16 by any suitable means. For example, the handle 14 can be secured in place with adhesive. The handle 14 can be used to move the closure member 10 relative to the protective member 4. As will become clearer with reference to the following figures, the handle 14 is sized to prevent a user's hand from extending out of the closure member 10.

[0067] At least a portion of the protective member 4 and / or the enclosing member 10 may be made of a rigid synthetic resin, such as an amorphous thermoplastic (e.g., acrylic, polycarbonate, polyvinyl chloride (PVC), polystyrene, polypropylene, polyethylene terephthalate). Alternatively, the protective member 4 may be made of rigid foam.

[0068] Figure 2 Showing Figure 1 The diagram shows a cross-sectional side view of device 2. As shown, the protective member 4 includes an internally threaded portion 20. As previously described, the threaded portion 12 on the closing member 10 and the threaded portion 20 on the protective member 4 together form a locking device that allows the closing member 10 to remain in the closed position.

[0069] Threaded portions 12 and 20 each include at least half a turn of thread, and in the depicted embodiment, include at least twelve full turns of thread. Of course, any number of turns can be provided, and the number of turns may depend on the specific application of device 2.

[0070] At the proximal end 22 of the protective member 4, an annular element 24 defines an opening 26 sized to allow insertion of a user's limb into the protective member 4. The opening 26 may be circular, but any suitable shape may be used, as long as it can accommodate the user's limb. The annular element 24 may be a separate component attached to the cylindrical tube 6. For example, the annular element 24 may be provided with a foam insert, which can make the opening 26 more comfortable around the user's limb. Alternatively, the annular element 24 may be integrally formed with the cylindrical tube 6.

[0071] The distal end 28 of the protective member 4 is open, and the dimensions of the distal end 28 are compatible with the limiting element 8 and the closing member 10. The relative dimensions of the protective member 4, the limiting element 8, and the closing member 10 are... Figure 3 It is displayed more clearly in the middle.

[0072] Figure 3 End views of the protective member 4, the restraining element 8, and the closing member 10 are shown. As shown, at least when the restraining element 8 is attached to the user's limb, the inner diameter 30 of the opening 26 is smaller than the outer diameter 32 of the restraining element 8. Therefore, at least when the restraining element 8 is attached to the user's limb, it is impossible to pull the limb with the restraining element 8 (attached to the limb) through the opening 26. Furthermore, the dimensions of the cylindrical tube 6 and the closing member 10 are such that the cylindrical tube 6 has an inner diameter 34 sufficient to receive the cylinder 16 (which has a diameter 36) of the closing member 10. In other words, the diameter 36 of the cylinder 16 is less than or equal to the inner diameter 34 of the cylindrical tube 6. Due to these relative dimensions, the closing member 10 can slide within the cylindrical tube 6. This becomes more apparent with reference to the following figures. Furthermore, as shown, the outer diameter 32 of the restraining element 8 is smaller than the inner diameter 34 of the cylindrical tube 6, allowing the restraining element 8 to be installed within the cylindrical tube 6. Furthermore, the outer diameter 32 of the limiting element 8 is smaller than the inner diameter 35 of the threaded portion 20, allowing the limiting element 8 to pass through the cylindrical tube 6 and the threaded portion 20, thus allowing the user to fully retract their limb (with the limiting element 8 attached thereto) into the cylindrical tube 6.

[0073] like Figure 3 As most clearly shown, the handle 14 and cylinder 16 of the closing member 10 together define two vents 38, 40. These vents 38, 40 allow air to flow into the protective member 4, at least when the closing member 10 is secured to the protective member 4. As previously mentioned, this can improve user comfort.

[0074] For the aforementioned device 2, the protective member 4 has a completely smooth, uninterrupted outer surface. This advantageously means that the protective member 4 itself cannot be used for example, scratching. However, the protective member 4 can be fenestrated to provide additional air circulation to the limbs within the protective member.

[0075] Figures 4A-4D A cross-sectional view is shown showing the connection between device 2 and the user's hand 42 and arm 44. The first step of the process is as follows: Figure 4A As shown, the user inserts their hand 42 and arm 44 through the opening 26 of the proximal end 22 of the protective member 4 and continues to advance their hand 42 relative to the protective member 4 until their hand 42 extends at least beyond the distal end 28 of the protective member 4.

[0076] like Figure 4BAs shown, once hand 42 extends from protective member 4, the user can then attach restraint element 8 around their arm 44, particularly around wrist 46. This can be achieved by grasping restraint element 8 with the user's other hand and pushing their hand 42 through opening 18 in restraint element 8. Fastening element 9 (see...) can then be attached... Figure 1 The device is then secured in place to fasten the limiting element 8 to the user's wrist 46. Once the limiting element 8 is attached to the user's first wrist 46, the second device 2 can be used to repeat the above process on the user's other hand, so that both hands are in a position... Figure 4B In the configuration shown, by repeating the process at this stage, neither hand 42 is fully restrained within the protective member 4, so the first hand 42 is free to assist in applying the second device 2 to the user's other hand 42.

[0077] like Figure 4C As shown, the user can continue to grasp the handle 14 of the closing member 14 with their hand 42. Figure 4D As shown, the user can retract their hand 42 while grasping the handle 14, causing the closing member 10 to be drawn into the interior of the cylindrical tube 6. Therefore, the closing member 10 can be moved into the closed position by the user's hand 42. Figure 4D As shown, when in the closed position, the user's hand 42, their wrist 46, and actually a portion of their arm 44 (e.g., at least a portion of the user's limb) are restrained within the protective member 4. The closing member 10 can be pulled back to the point where the threaded portions 12, 20 engage, and the closing member 10 rotates relative to the protective member 4 such that the threaded portions 12, 20 engage with each other and hold the closing member 10 in the closed position. The threaded portions 12, 20, which together provide a locking mechanism, thus secure the closing member 10 in the closed position. As shown in the figure, the closing member 10, at least when in the closed position, can be contained within the cylindrical tube 6, i.e., within the outer wall of the protective member 4.

[0078] The above Figure 4C and 4D The steps can be repeated on the second device 2 by the user's second hand 42. Therefore, the device 2 can be connected to each hand 42 by the user himself without the need for third-party assistance.

[0079] like Figure 4DAs shown, the various components are configured such that the opening at the distal end 28 is sufficiently away from the extended fingers of the user's hand 42 to prevent the user from causing injury, such as self-injury. This can be achieved through the appropriate dimensionalization of the tube 6, the positioning of the threaded portion 20 within the tube 6, and the relative dimensions of the closure member 10. The proximal end 22 of the tube 6 can be designed to be located anywhere on the arm 44 between the wrist and elbow. The position of the tube 6 on the user's arm 44 may depend on the distance from which the user's hand 42 is inserted into the device 2. The user 42 can move their hand 42 freely longitudinally within the tube 6, for example by releasing the handle 14 and retracting their arm 44 back and forth. The tube 6 may not extend above the elbow, thus allowing the arm 44 to bend at the elbow. Again, this can improve the comfort of the device 2 for the user.

[0080] As in Figure 4D Most clearly visible is that when the limiting element 8 is attached around a user's limb, such as around their wrist 46, the outer dimension 32 of the limiting element 8 is larger than the inner dimension 30 of the opening 26 (defined by the annular element 24). Therefore, the limiting element 8 effectively restricts the opening 30 relative to the user's limb; that is, it provides a means of restricting the opening 26 relative to the user's wrist 46 (i.e., their limb). Thus, once the arm 46 is inserted and the opening 26 is restricted relative to the user's wrist 46, the wrist 46 cannot retract through the opening 26. Also shown, the outer dimension 32 of the limiting element 8 is smaller than the inner diameter 34 of the cylindrical tube 6. Therefore, when the limiting element 8 is attached to the wrist 46, it can move freely within the protective member 4. By appropriately adjusting the dimensions of the limiting element 8, the positioning of the closing member 10 in the closed position, and the dimensions of the cylindrical tube 6, the limiting element 8 can be allowed to move longitudinally and laterally within the protective member 4, and can be rotated relative to the protective member 4. As mentioned above, this freedom of movement can significantly improve the comfort of the user with device 2, which can increase the likelihood of the user wearing device 2 and potentially increase the time they wear device 2.

[0081] Although it has been described above that device 2 can be connected to each of the user's hands 42, of course, if the user only wants to apply device 2 to one hand 42, then the user does not need to repeat the above steps on the other hand 42.

[0082] The aforementioned device 2 can also be detached and connected by the user. To remove the protective device 2, the user can perform the actions described above... Figures 4A-4D The reverse of the steps described herein. Using... Figure 4DThe device 2, as shown, allows the user to perform a predetermined operation by rotating the closing member 10 relative to the protective member 4, thereby releasing the locking mechanism provided by the threaded portions 12, 20. When rotating the closing member 10 relative to the protective member 4, it may be necessary to secure the protective member 4 in a fixed position. This can be achieved, for example, by securing the protective member 4 between the user's knees or by abutting the protective member 4 against a surface (e.g., a workbench). The threaded portions 12, 20 include multiple turns of thread, therefore the user must perform several full rotations of the closing member 10 before they can release the threaded portions 12, 20. The number of rotations required to release the closing member 10 prevents the user from accidentally or subconsciously removing the protective device.

[0083] Once the closing member 10 has rotated sufficiently, the threaded portions 12 and 20 will separate, and the user can use their hand 42 to push the closing member 10 out of the protective member 4, thereby removing the closing member 10 from... Figure 4D The closed position shown is moved to Figure 4C The opening position is shown.

[0084] The user can then repeat the above operation on their second hand 42 to move the closing member 10 to the open position. The user can then remove the restraining element 8 from each of their wrists 46 and retract their hand 42 through the opening 26 in the device 2.

[0085] Although described above as having a locking mechanism that requires continuous effort from the user to release, the user may wish to release the locking mechanism more easily. In this case, the locking mechanism can be overcome more easily. For example, the closing member 10 can be held in the closed position by an interference fit instead of threaded portions 12, 20. This interference fit can be released more easily by the user's hand 42.

[0086] Now will describe Figure 1 Several variations of the limb protection device 2 shown are illustrated. In addition to the variations described, the limb protection device 2 has the same... Figure 1 The structure shown is the same as described above. Therefore, similar reference numerals refer to similar parts, and their descriptions are not repeated. The different variations described below can be applied together in any combination.

[0087] Figure 5A and 5B A variation of the device 2 shown in the earlier figure is displayed. In this variation, the threaded portion 20 is arranged at the distal end 28 of the cylindrical tube 6 of the protective member 20. The dimensions of the closing member 10 are such that its external dimensions match the external dimensions of the cylindrical tube 6. Therefore, as Figure 5BAs shown, when the closing member 10 is in the closed position to close the protective member 4, and when the threaded portions 12 and 20 are engaged, the closing member 10 abuts against the distal end 28 of the cylindrical tube 6. Therefore, the closing member 10 will not... Figure 1 The device 2 shown slides within the cylindrical tube 6. In this variant, to illustrate that the closing member 10 is not located within the cylindrical tube 6, the closing member 10 includes a forward-extending protective portion 48. When the closing member 10 is in... Figure 5B In the closed position shown, the user's fingers can extend beyond the handle 14. Therefore, the forward-extending protective portion 48 is used to protect the fingers, thereby preventing the user from using their fingers, for example, to scratch themselves.

[0088] For any of the aforementioned devices 2, a further locking device operable only from the outside of the protective member 4 may be provided. For example, a strap with snap fasteners may be connected between the closing member 10 and the protective member 4 to prevent relative rotation between them. Alternatively, a wedge may be inserted between the inner walls of the closing member 10 and the protective member 4 to prevent relative rotation. This further locking device requires release by a third party before the user can release the locking device provided by the threaded portions 12, 20.

[0089] Figure 6A and 6B Another variation of the device 2 seen in the earlier figures is shown. In this variation, the closing member 10 is not a separate closing member, but is pivotally mounted to the protective member 4. Figure 6B As shown, when the user inserts their hand 42 into the protective member 4 and connects the limiting element 8, they can then grasp the closing member 10, shown as a handle 14, and pull it into the closed position, as... Figure 6A As shown by the dashed line 50. Once in the closed position, the user's hand 42 can be restrained within the device 2. The closing member 10 may include a snap-fit ​​device at one end for connection with the protective member 4 to secure the closing member 10 in the closed position.

[0090] also, Figure 6A and 6B The variant shown also includes multiple vents 51 located at the proximal end 22 of the protective member 4. As previously described, such vents 51 allow air circulation into the interior of the protective member 4, particularly around the portion of the protective member 4 extending around the user's arm 44, which increases the comfort of the device 2.

[0091] Figure 7 A perspective view of a variant of the handle 14 of the closing member 10 is shown. Not, for example, as... Figure 1The handle 14 shown is provided by a bar, and the handle 14 is as follows: Figure 7 The ring-shaped handle 14 can be connected to the outer ring 52 via multiple support members 54. The handle 14, the outer ring 52, and the multiple support members 54 together define multiple openings 56. The ring-shaped handle 14 also defines a central opening 58. Figure 7 The arrangement shown can be replaced Figure 1 The handle 14 of the closure member is shown. When a user wishes to move the closure member 10, they can grasp the handle 14 by inserting at least one finger through one of the plurality of openings 56 and one finger through the central opening 58, thus allowing them to grasp the handle 14. The user can then pull the closure member 10 and rotate it accordingly. Alternatively, when operating the closure member 10, the user can insert two or more fingers through the openings 56 without inserting any fingers through the central opening 58. The openings 56, 58 are sized such that the user's hand 42 cannot pass through them, therefore, Figure 7 The arrangement shown helps to restrain the user's hands within the device 2. Openings 56 and central opening 58 also provide ventilation openings that allow air to enter the protective member 4. Figure 2 The ring element 24 shown can also have the same Figure 7 The structure is similar to that of the component shown; however, in this case, the opening 58 needs to be large enough to allow the user's limb to be inserted into the device 2.

[0092] Figure 8 It shows Figure 1 A cross-sectional side view of another variant of the protective member 4 is shown. In this variant, the cylindrical tube 6 of the protective member 4 is made of sheet material and includes circular covers 60 disposed at the proximal end 22 and distal end 28 of the protective member 4. In this variant, the circular cover 60 is a separate element attached to the cylindrical tube 6. For example, the circular cover 60 can be provided by a smooth annular cover. Alternatively, the proximal end 22 and distal end 28 of the cylindrical tube 6 can be formed into a circle by appropriate molding. The circular cover 60 can be used to passivate the proximal end 22 and distal end 28 of the protective member 4, thereby potentially improving user comfort and also potentially preventing the protective member 4 from being used as a scratching tool.

[0093] Figure 9A It shows Figure 1 A cross-sectional side view of a variant of device 2. The closing member 10 does not have threaded portions 12, 20, but instead includes a snap-fit ​​member 62, a protective member 4, particularly the cylindrical tube 6, including an opening 64 for receiving the snap-fit ​​member 62. The snap-fit ​​member 62 and the opening 64 together provide a locking mechanism. Figure 9BAs shown, the closing member 10 can be moved to the closed position, in which the snap-fit ​​member 62 engages with the opening 64. When the closing member 10 moves to... Figure 9B In the closed position shown, the latching member 62 undergoes slight deformation due to being forced to expand around the cylindrical tube 6. Therefore, due to this deformation, the latching member 62 will remain in place in the opening 64 when it engages with the opening 64.

[0094] When the user's hand is restrained within the protective member 4, the user can release the locking device from the opening 64 by pressing the latching member 62 from within the protective member 4. The user can then push the closing member 10 out of its closed position, for example, by pushing the handle 14. Therefore, the presence of multiple latching members 62 may require predetermined actions (including the operation of multiple latching members 62) from the user before they can release the closing member 10. This may therefore present an obstacle to disassembly. Any suitable latching device can be provided. Any suitable latching device can be used, such as a cantilever, torsional, or ring latch.

[0095] like Figure 9A and 9B The illustrated device includes a further locking device 65, which can be operated from outside the protective member 4, for example, by a caregiver. The further locking device 65 includes a slider 67 arranged to slide longitudinally relative to the cylindrical tube 6. When the closing member is in the closed position, as... Figure 9B As shown, when the latching member 62 is located in the opening 64, the slider 67 of the locking device 65 can move to overlap with, or even engage with, the latching member 62. Therefore, the slider 67 can prevent the latching member 62 from being pushed radially outward, thereby preventing the release of the closing member 10. For example, the further locking device 65 can be operated by a third party, such as a caregiver who needs some degree of control over when the user can remove the device 2. Figure 9A and 9B The arrangement shown is only one example of a possible further locking device 65, and any other suitable further locking device may be used.

[0096] Figure 10 A perspective view of another variant of the closure member 10 is shown. In this variant, the closure member 10 includes a plurality of, in this case four, radially extending elements 66. Figure 11 It shows that it is designed to be used with Figure 10 The side view shows a variant of the protective member 4 used in conjunction with the closure member 10. The protective member 4 includes a plurality of slots 68 arranged at its distal end 28. The slots 68 are not necessarily located at the distal end 28 of the protective member 4. Instead, the slots 68 may be located within the protective member 4, for example, at the junction with... Figure 2 The position corresponding to the position of the threaded portion 20 shown. In this case, although not shown, the protective member 4 includes four slots.

[0097] refer to Figure 10 and Figure 11 Multiple radially extending elements 66 and slots 68 together form a locking device. The user can move the closing member 10 toward the protective member 4, engaging each radially extending element 66 in a corresponding slot 68. The user can then manipulate the closing member 10, moving the radially extending elements 66 toward the ends 69 of the slots 68. Once in position, this corresponds to the locked position. Due to the relatively complex shape of the slots 68, the user must perform relatively complex movements of the closing member 10 (including rotation and longitudinal movement) to release it. Therefore, this relatively complex movement can constitute a predetermined operation for the user. Of course, the slots 68 can have any suitable shape. Figure 10 and 11 The arrangement shown effectively forms a bayonet-type fitting. Although not shown, Figure 10 and 11 The device may also include at least one elastic member, such as in the form of a spring, which functions to provide a force that holds the radially extending element 66 at the end 69 of the slot 68. In this case, the user must also overcome the force of the elastic member before being able to release the closing member 10, thereby further facilitating the intended operation.

[0098] As an alternative to the above, the locking device may include a Storz connector, which includes a series of interlocking hooks and flanges.

[0099] Figure 12 A cross-sectional side view of another variant is shown, in which the locking device includes an electromagnetic locking device 70. In this variant, the electromagnetic locking device 70 is arranged to drive two bolts 72 into the closing member 10 to secure the closing member 10 in the closed position. The bolts 72 extend through the cylindrical tube 6 and into the closing member 10. A switch 74 may be arranged inside the protective member 4 for user operation to operate the electromagnetic locking device 70. The switch 74 may require sustained force from the user to operate the electromagnetic locking device 70. For example, the switch 74 may include a number of different buttons that must be pressed in a specific sequence to release the electromagnetic locking device 70. Alternatively, unlike the above, the electromagnetic locking device 70 may be connected to a voice control device, and the user may operate the electromagnetic locking device using their voice.

[0100] In addition, Figure 12In the variant shown, the protective component 4 includes a tool, in the form of a sensor 75, to determine the duration for which the user wears the limb protection device 2. The duration can be the amount of time the protection device 2 is worn continuously and / or the total wearing time of the protection device 2. The sensor 75 can be any suitable sensor, such as a thermal sensor, photoelectric sensor, and / or accelerometer. As previously described, the sensor 75 can cooperate with another device to provide an alert to the user or caregiver based on the amount of time the user wears the device 2.

[0101] Figure 13 It shows Figure 1 A perspective view of a variant of the restraining element 8 shown. In this variant, the restraining element 8 includes an adjustment mechanism 76, which includes a strap 78 and a buckle 80. The strap 78 can pass through the buckle 80 to adjust the size of the restraining element 8. For example, this can allow a reduction in the opening 18. This allows the restraining element 8 to be suitable for many different users and / or allows the restraining element 8 to be used on a variety of different limbs. Additionally, or alternatively, the restraining element 8 may include a Velcro strap for achieving the adjustment of the restraining element.

[0102] Figure 14 shows an end view of another variant of the limiting element 8. In this variant, the limiting element 8 comprises two halves 8A and 8B connected by a hinge 30. Figure 14B As shown, hinge 30 allows the two halves 8A, 8B to be opened to receive the user's limbs. The two halves 8A, 8B can then be closed to secure them around the user's limbs. This arrangement facilitates the user's insertion of their limbs into the restraining element 8. The two halves 8A, 8B can be held in the closed position by any suitable means, such as... Figure 14A As shown.

[0103] The aforementioned restraining element 8 is circular; however, this is not mandatory, and the restraining element 8 can have any other suitable shape, for example, it can be elliptical. Its shape can be defined at least partially by the shape of the protective member 4. Although the restraining element 8 is shown as forming a complete circle, this is not necessary and depends on the specific size of the user's limb and the opening 26 on the protective member 4. Instead, the restraining element can extend only partially around the user's limb. For example, the restraining element can be in the form of a broken loop that extends 270° around the user's limb. Such a broken loop makes it easier for the user to attach the restraining element 8 to their limb.

[0104] Figure 15 A side cross-sectional view of the limb protection device 102 is shown. (Compared to...) Figure 1Similar to the illustrated device 2, device 102 includes a protective member 4 with an opening 26 located at its proximal end 22, sized to allow insertion of a user's limb into the protective member 4. Device 102 also includes a restraining element 8, separate from the protective member 4, configured to connect around the user's limb such that the external dimensions of the restraining element 8 are larger than the opening 26, preventing the user's limb from retracting through the opening 26, and allowing the restraining element 8 to move within the protective member 4 when connected to the limb.

[0105] Device 102 includes a closure member 110 disposed at the distal end 28 of protective member 4 to permanently prevent a user's limb from passing through the distal end 28 of device 102. The closure member 110 is integrally formed with protective member 4. To put on device 102, a user inserts their limb into protective member 4 through opening 26 and pushes their limb through opening 18 in restraining element 8. Restraining element 8 may be inflatable; once the limb is inserted, restraining element 8 can be inflated to clamp around the limb within device 102. Alternatively, the user can attach restraining element 8 to their limb, insert their limb with restraining element 8 attached through opening 26, and then inflate restraining element 8 to restrain the limb within device 102. In this case, the portion of the limb within device 2 can then be restrained within device 102 because restraining element 8 will prevent the limb from retracting through opening 26. Since closure member 110 will also prevent the limb from passing through the distal end 28 of device 102, restraining element 8 will still allow the limb to move within protective member 4, potentially increasing user comfort.

[0106] Device 102 does not need to cover the entire limb or completely restrain the limb within device 102. Instead, a portion of the limb can freely extend beyond the distal end 28 of device 102. This type of limb protection device 102 is as follows: Figure 16 As shown. Device 102 includes a protective member 4 with an opening 26 at its proximal end 22. Device 102 also includes a restraining element 8. Unlike the previous variant, however, device 102 does not include a closing member. Therefore, a limb inserted into device 102 and connected to the restraining element 8 will be prevented from retracting through the opening 26, but will still be able to extend from the distal end 28 of the protective member 4. This allows the user to protect a portion of their limb, allows the protective member 4 to have a degree of freedom of movement relative to the limb, while maintaining the use of at least a portion of the limb, such as their hand passing through the distal end 28 of device 102.

[0107] Figure 16 The use of device 102 as follows Figure 17As shown, the device 102 is used to protect the user's lower leg 82. As indicated, the foot 84, which is actually the lowest part of the user's lower leg 82, extends from the distal end 28 of the device 102. By using the restraining element 8, the protective member 4 is secured to the user's lower leg 82 and prevents it from falling off, as the restraining element cannot pass through the opening 26. However, the protective member 4 will be able to move at least partially freely relative to the user's lower leg 82. For example, the protective member 4 can rotate and / or move laterally upward relative to the user's leg, away from the restraining element 8. As previously stated, this can increase the comfort of the device 2 for the user. As will be understood, the dimensions of the restraining element 8 can be appropriately determined so that the protective member 4 and the restraining element 8 can move relative to each other.

[0108] The above regarding Figure 15 , 16 The devices of type 17 can be used to protect any limb of a person or animal. The above refers to... Figure 1-1 Any relevant features of 4 can also be applied to the above regarding Figure 15-17 The device.

[0109] In any of the above variations, at least the protective member 4 may be transparent. As previously stated, this allows the user or caregiver to visually inspect the limbs within the device 2.

Claims

1. A limb protection device for protecting a user's hand, comprising: A protective member configured to protect at least a portion of a user's limbs, including a hand, includes an opening disposed at a proximal end of the protective member, the size of which allows the user's limbs to be inserted into the protective member. A tool for restricting the opening relative to the user's limb, such that once the limb is inserted and the opening is restricted relative to the user's limb, the limb cannot be retracted through the opening; A closing member that can be moved to a closed position by the user's hand within the protective member, such that at least a portion of the limb is confined within the protective member; The closure member includes an element that can be grasped by a user's hand within the protective member to move the closure member to the closed position; as well as A locking device is used to fix the closing member in the closed position.

2. The limb protection device of claim 1, wherein the locking device is configured to be released after a predetermined operation is performed by the limb within the protection member, and wherein the closing member is configured to be able to move from the closed position to the open position by the limb within the protection member.

3. The limb protection device as claimed in claim 1, wherein the locking device includes a threaded portion on the closing member and a corresponding threaded portion on the protective member for engaging with each other.

4. The limb protection device of claim 3, wherein the threaded portion and the corresponding threaded portion each comprise at least half a turn of thread.

5. The limb protection device of claim 1, wherein the locking device includes a latching device configured to secure the closing member in the closed position.

6. The limb protection device of claim 1, wherein the locking device comprises at least one radially extending element on one of the closing member or the protective member and at least one concave receiving portion on the other of the closing member or the protective member for receiving the radially extending element.

7. The limb protection device as claimed in claim 1, wherein the locking device includes an electromagnetic locking device.

8. The limb protection device of claim 1, wherein the closure member is pivotally mounted to the protection member.

9. The limb protection device of claim 1, wherein the closure member includes a handle for moving the closure member relative to the protection member.

10. The limb protection device of claim 1, wherein the closure member is contained within the outer wall of the protection member at least when in the closed position.

11. The limb protection device of claim 1, wherein the closure member defines at least one hole extending through the closure member.

12. The limb protection device according to any of the preceding claims, wherein the tool for limiting the opening comprises: A limiting element, separate from the protective member, is configured to be attached around the user's limb such that the external dimensions of the limiting element are larger than the opening, thereby limiting the opening relative to the user's limb, and the limiting element is sized such that it can move within the protective member when attached to the limb.

13. The limb protection device of claim 12, wherein the restraining element has an adjustable size.

14. The limb protection device of claim 12, wherein the limiting element is configured to be openable to receive a user's limb and closed to secure the limb around the user.

15. The limb protection device of claim 12, wherein the restraining element is at least partially deformable.

16. The limb protection device of claim 12, wherein the restraining element is inflatable.

17. The limb protection device of claim 1, further comprising a vent located at the proximal end of the protective member.

18. The limb protection device of claim 1, wherein at least the protective member is transparent.

19. The limb protection device of claim 1, wherein at least the protective member is made of a sheet material comprising a circular proximal end and a circular distal end.

20. The limb protection device of claim 1, wherein at least the protective member is made of at least a semi-rigid material.

21. The limb protection device of claim 1, further comprising a tool for determining the duration for which the user has worn the limb protection device.

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