WO2019219710A1 - Disposable sleeping liner - Google Patents

Disposable sleeping liner Download PDF

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Publication number
WO2019219710A1
WO2019219710A1 PCT/EP2019/062387 EP2019062387W WO2019219710A1 WO 2019219710 A1 WO2019219710 A1 WO 2019219710A1 EP 2019062387 W EP2019062387 W EP 2019062387W WO 2019219710 A1 WO2019219710 A1 WO 2019219710A1
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WO
WIPO (PCT)
Prior art keywords
liner
layer
sleeping
fluid
liner according
Prior art date
Application number
PCT/EP2019/062387
Other languages
French (fr)
Inventor
Helle ØLGAARD MCNULTY
Paul MCNULTY
Original Assignee
Region Hovedstadens Apotek
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Region Hovedstadens Apotek filed Critical Region Hovedstadens Apotek
Publication of WO2019219710A1 publication Critical patent/WO2019219710A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/48—Devices for preventing wetting or pollution of the bed
    • A61F5/485—Absorbent protective pads

Definitions

  • the present invention relates to a disposable sleeping liner for collecting bodily fluids e.g. sweat, and a kit comprising the disposable sleeping liner and a cover, such as a bag, suitable for covering the sleeping liner such that the sleeping liner may be safely and conveniently discarded after use.
  • the present invention further relates to use of a sleeping liner for collecting bodily fluids.
  • Numerous drugs are used for medical treatment, and particularly medical
  • chemotherapy treatment e.g. in Denmark more than 70 types of drugs are used in cancer treatment.
  • drugs used for medical treatment and medical chemotherapy treatment is that many are highly toxic, as the substances are generally both cytotoxic, carcinogenic, genotoxic and/or mutagenic.
  • Patients in chemotherapy will of course be exposed to the drugs during treatment.
  • the patients may typically receive the chemotherapy in an ambulatory setting and then be sent home shortly after. Treatment may also take place in the patients home during a visit from a healthcare professional. After the drugs have been administered to the patients, no further precautions are generally taken.
  • Residues of a medical treatment may be excreted by the patient after treatment. It is for example a known fact that residues of chemotherapy are excreted by the patient after treatment, even though the excretion may be difficult to detect, depending on the concentration and chemical nature of the residues. Typically this excretion happens up to 5 days after treatment. The excretion occurs in bodily fluids such as urine, feces, vomit, saliva, and sweat via the skin. When patients are at home, these residues are disposed of in the patient’s home setting, e.g. in the mattress, pillow and bedding.
  • Pending patent application PCT/EP2018/057467 entitled“Toilet bag for collecting bodily waste” describes a device for conveniently collecting bodily waste in the form of urine and faces from patients treated with chemotherapy.
  • the present invention provides a device and a kit for reducing the amount of excreted residues from a medical treatment, such as chemotherapy treatment, in the home settings of patients receiving treatment with medical chemotherapy or other medical treatments, as well as a device and a kit for collecting and disposing the excreted residues of medical treatment and chemotherapy in an environmental friendly manner.
  • a medical treatment such as chemotherapy treatment
  • a first aspect of the invention relates to a disposable sleeping liner, wherein at least a part of the liner comprises:
  • a fluid absorbent layer sandwiched between the outer and inner layer, and suitable for collecting bodily fluids, which contain toxic residues from chemotherapy treatment.
  • the outer fluid resistant layer is a fluid/liquid repellent layer or a fluid/liquid proof layer.
  • the bodily fluids are sweat.
  • the toxic residues are residues from chemotherapy treatment excreted through the skin.
  • a second aspect of the invention relates to a kit comprising the presently disclosed disposable sleeping liner, and a cover for the sleeping liner.
  • the cover is a bag suitable for storing the used sleeping liner.
  • a third aspect of the invention relates to use of a sleeping liner for collecting bodily fluids, such as sweat, which contain toxic residues from chemotherapy treatment, e.g. the presently disclosed sleeping liner.
  • Figures 1 (A)-(D) show embodiments of a sleeping liner according to the present disclosure as seen from the top or front.
  • A is an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the chest of a person laying on the back.
  • B is a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a dotted area present at the area in contact with the body core.
  • C is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness.
  • FIG. D is an embodiment of the sleeping liner in (C) further comprising a pillow inserted into an integrated pillow insert sleeve.
  • Figure 1 (E) shows a close-up of the integrated pillow insert sleeve, where the pillow may be inserted from the top of the liner, or from the back side of the liner, as shown in the embodiment.
  • Fiqure 2 shows an embodiment of a sleeping liner according to the present disclosure seen from the back.
  • (A) is an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the back and head of a person laying on the back.
  • (B) is a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a grey area present at the area in contact with the body core.
  • (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness.
  • Figure 3 shows an embodiment of the sleeping liner according to the present disclosure comprising an opening for ventilating the feet and lower legs, or a portion of the feet and lower legs.
  • A shows an embodiment, where the opening is a zipper opening.
  • B shows an embodiment of a simple openinq.Fiqure 4
  • A shows an embodiment of the sleeping liner according to the present disclosure, where a pillow has been inserted into a pillow insert sleeve.
  • B shows an embodiment of the sleeping liner according to the present disclosure comprising an opening mechanism for accessing the sleeping liner in the form of an opening between the front and back of the liner with a predetermined extension.
  • the opening may be terminated by seams or other means for attaching the front and back of the liner along the edge.
  • the front of the sleeping liner may be separated from the back of the sleeping liner by folding the front part away from the back part as indicated in (B), whereby the liner may be easily accessed by a person.
  • Figure 5 shows an embodiment of a cover according to the present disclosure for safely storing and sealing the used sleeping liner comprising a sealable closure mechanism in the form of glue combined with a protective paper.
  • Figure 6 shows an embodiment of a sleeping liner according to the present disclosure as seen from the front (schematic to the left), and from the back (schematic to the right). Examples of dimensions and distances in centimeters are included. In other embodiments of the sleeping liner, the dimensions may be different, e.g. the fluid absorbent and fluid resistant part in the front part (shown dotted in the schematic to the left) may have a height of 90 cm instead of 60 cm, and a width of 70 cm instead of 60 cm. Also, the width of the sleeping liner may be 100 cm instead of 120 cm, and the distance from the top of the liner to the termination of the opening mechanism for accessing the sleeping liner may be 100 cm instead of 92 cm.
  • the fluid absorbent and fluid resistant part in the front part shown dotted in the schematic to the left
  • the width of the sleeping liner may be 100 cm instead of 120 cm
  • the distance from the top of the liner to the termination of the opening mechanism for accessing the sleeping liner may be 100 cm instead of 92 cm.
  • Fiqure 7 shows an embodiment of a cover according to the present disclosure comprising a sealable closure mechanism in the form of glue combined with a protective paper.
  • A shows an embodiment, where the cover is open
  • B shows an embodiment, where the protective paper is partially removed
  • C shows an embodiment, where the cover has been sealed.
  • Figure 8 shows an embodiment of the cover shown in Figure 7, where examples of dimensions and distances in centimeters are included.
  • Figure 9 shows an embodiment of the liner in a cross-sectional sketched view.
  • a person is placed within the liner, and the person is sleeping on the back, such that the back of the person is in contact with a back part of the sleeping liner, and the front of the person is in contact witht a front part of the sleeping liner.
  • the person’s body, both back and front, is in contact with an inner layer 1 of the liner, such as an inner fluid permeable layer.
  • An outer layer 3 is in contact with the surroundings, and sandwiched between the inner layer and outer layer is a middle layer 2, such as a fluid absorbent layer.
  • the outer layer may be the same or different on the back and front side.
  • the outer layer on the back side is a fluid resistant layer
  • the outer layer on the front side is a fluid repellent layer
  • the outer layer is a fluid resistant layer on both the back and front side.
  • the outer layer is a fluid repellent layer on both the back and front side.
  • all three layers do not need to be continuously within liner.
  • the middle layer and outer layer may be comprised in selected parts or patches of the liner, and the back side and the front side may be joined along the edges.
  • the bed is one of the main sites exposed to residues of medical chemotherapy.
  • “residues from chemotherapy” is meant the medical chemotherapy drugs and their residues excreted from a patient subsequent to receiving chemo treatment, such as the residues in sweat.
  • the residues from chemotherapy may also be referred to as“chemo residues” or“secondary chemo”.
  • Residues of chemo may be excreted through bodily fluids, e.g. through the skin, and due to night sweats, which are common for many cancer patients, a significant proportion of the chemo residues will over a treatment period of often many month end up in the family bed.
  • Bedlinen may also be referred to as bedclothes or bedding. Frequent washing of the bedlinen further results in the toxic sweat residues going into the normal sewage system. There is also a risk of exposing people who changes the bedlinen.
  • the present invention provides a sleeping liner for reducing the amount of chemo residues in the home settings and hence the normal sewage system.
  • the present invention provides a sleeping liner for reducing the amount of residues from any medical treatment, where residues of a medical treatment may be excreted by the patient after the treatment.
  • a sleeping liner defines an inner area, or inner surface area, which can be in direct contact with the user, when the user accesses the sleeping liner.
  • a sleeping liner may be used instead of, or in addition to, normal bedlinen applied on a pillow and duvet.
  • the sleeping liner is adapted for e.g. absorbing the sweat from the skin during use, and after use, the sleeping liner may be packed and sealed in a cover.
  • the sleeping liner may be further provided or stored in the cover before use.
  • covers which may be adapted for sealable closure include covers in the form of bags and/or sleeves.
  • the terms“cover”,“bag”, and“sleeve” are used interchangeably.
  • the sealed cover or bag may easily be disposed e.g. by disposing the sealed waste bag in the normal household waste, or via the system for clinical risk waste, also known as the yellow bag system.
  • the sleeping liner may be packed and sealed after use by the user himself, such that the exposure of medical chemo residues to the surroundings are further reduced.
  • the cover is a bag suitable for storing the used sleeping liner.
  • the sleeping liner prevents the bedlinen, pillow, duvet, and mattress from becoming reservoirs of chemo residues during a course of chemotherapy treatment, and it thus further reduces the amount of chemo residues that family members, and care staff, are exposed to.
  • the sleeping liner is adapted for single use and configured to be disposable in the same manner as e.g. diapers, sanitary towels, and incontinence pads. Further advantageously, the sleeping liner is changed once per day, or after each use.
  • dispenser is therefore meant that the sleeping liner is not washable and/or reusable.
  • the sleeping liner is provided with a dedicated cover or bag for packing and sealing the sleeping liner after use.
  • the sleeping liner and bag forms an easily disposable kit.
  • the bag further comprises information on the safety specifications, e.g. by use of a label.
  • the cover or bag is made of a robust material, which is not prone to accidental tear and puncture.
  • robust plastic materials include linear, low-density polyethylene and bio-based plastics with a thickness above 10 microns, such as 20-40 microns.
  • the cover or bag has a suitable shape and size such that the sleeping liner may be easily unpacked and/or packed into the cover without risk of tear.
  • the cover may have the form of an envelope or a plastic bag.
  • the cover or bag comprises or is made of a low- density polyethylene or bio-based plastics with a thickness above 10 microns, such as 20-40 microns.
  • the cover is shaped as an envelope or bag, optionally with a dimension of 50 cm x 60 cm.
  • the cover or bag comprises a resealable and/or resealable closure mechanism, such that the used sleeping liner may be securely sealed.
  • sealable closure mechanisms include pressure sensitive adhesive, tapes and/or glue.
  • the cover comprises a resealable closure mechanism, such as a pressure sensitive adhesive, tapes and/or glue.
  • the closure mechanism is advantageously sealable and non-resealable, such as glue combined with a protective paper.
  • the cover comprises a sealable and non-resealable closure mechanism, such as glue combined with a protective paper.
  • Figures 5 shows an embodiment of a cover comprising a sealable closure mechanism, in the form of glue combined with a protective paper, where the sleeve and protective paper is similar to a sealable envelope.
  • Figures 7-8 show another embodiment of a cover, or bag or sleeve, comprising a sealable closure mechanism in the form of glue combined with a protective paper.
  • Figure 7A shows an embodiment of the open cover having a shape similar to a sleeping bag cover and further comprising a strip of glue combined with a protective paper. After packing the used sleeping liner into the cover, the protective paper may be removed, as illustrated in Figure 7B, and the opening of the sleeve may be folded and contacted to the glue to form a sealed closure, as illustrated in Figure 7C.
  • Figure 8 shows an embodiment of the cover shown in Figure 7, where examples of dimensions and distances in centimeters are included.
  • the cover or bag is made of a robust material, which is not prone to accidental tear and puncture.
  • the cover may comprise or be made of a plastic material, such as a bio-based plastic.
  • the plastic can be biodegradable and environmentally friendly.
  • a bio-based plastic can be one or more of Starch-based plastics, cellulose-based plastics, protein-based plastics, aliphatic polyesters, polyamide 11 , bio-derived polyethylene,
  • the material for the bag is puncture-resistant and/or tear-resistant. This may be achieved by fabricating the bag from a plastic material with a thickness of at least 20 microns, more preferably at least 40 microns, yet more preferably at least 60 microns, even more preferably at least 100 microns, most preferably at least 150 microns.
  • the bag is made from 50 micron thick polyurethane.
  • Puncture-resistance and/or tear-resistance may also be provided by fabricating the bag from multiple layers of for example plastic.
  • the bag may be fabricated from an elastic material such as rubber.
  • the bag is made from double layered plastic. Multiple layers add even more safety to the invention, as the bag is redundant such that a tear in one layer of the bag does not lead to leak or spillage to the surroundings.
  • the back of the person is in contact with a back part of the sleeping liner
  • the front of the person is in contact witht a front part of the sleeping liner.
  • the back part and the front part of the sleeping liner may be joined along three of the edges to form the liner, in a similar manner as an open envelope.
  • the sleeping liner defines an inner area, or inner surface area, which is in contact with the user.
  • the inner area of the liner may be formed and defined by an inner layer. Since the inner layer is in contact with the skin of the user, the inner layer is
  • the inner layer is advantageously a fluid permeable layer, such as a nonwoven fabric.
  • the sleeping liner In addition to the inner layer defining the inner surface of the sleeping liner, at least a part of the sleeping liner further comprises an outer fluid resistant layer, and a fluid absorbent layer sandwiched between the outer and inner layer.
  • the sleeping liner according to the present disclosure comprises at least three layers of fabric: an inner fluid permeable layer, an outer fluid resistant layer, and a fluid absorbent layer sandwiched between the outer and inner layer.
  • outer layer By the term“outer layer” is meant the layer being closest to the surroundings, and by the term“inner layer” is meant the layer having direct contact to the user or person accessing the sleeping liner.
  • the presence of the fluid absorbent layer and the fluid resistant layer are advantageously limited to the areas of the sleeping liner in contact with the head and body core.
  • the fluid absorbent layer and fluid resistant layer cover different areas in the front of the sleeping liner, compared to the back of the sleeping liner. This is for example seen in Figure 6, where the fluid absorbent/resistant layers (shown dotted) are limited to the central area of the front part (schematic shown to the left), whereas the fluid
  • absorbent/resistant layers are covering a larger part of the back part, including the top of the liner in contact with the head of the user (schematic shown to the right).
  • the fluid absorbent layer and fluid/moisture resistant layer cover an as small as possible area of the sleeping liner, but also cover a sufficient area to ensure that the majority of the excreted bodily fluids are collected in the absorbent layer.
  • the sleeping liner may be used in a family bed, where other members are adjacent to the sleeping liner, the materials of the sleeping liner in contact with the user, as well as in contact with the surroundings, should be comfortable to sleep with in a normal bed and bed linen.
  • the sleeping liner comprises a further outer layer, which is identical to the inner fluid permeable layer in contact with the user, such that the fluid absorbent/resistant layers are sandwiched between the inner fluid permeable layer and the outer fluid permeable layer, in the parts where the fluid absorbent/resistant layers are placed.
  • the inner fluid permeable layer is in direct contact with the outer fluid permeable layer.
  • the inner fluid permeable layer is identical to the outer fluid permeable layer, and both preferably comprises a nonwoven fabric.
  • This design of layers facilitates easy and simple manufacturing, since the inner permeable layer and the outer (second) permeable layer may be easily joined along one or more edges, and the fluid absorbent and fluid resistant layers positioned at the relevant areas in the space formed between the two layers or sheets.
  • the inner permeable layer and the outer (second) permeable layer may be formed from a single coherent layer, such as a single linen, or sheet, which is folded and optionally further joined along the edges, to form a double linen, or double sheet, such as a double linen for beddings.
  • a single coherent layer such as a single linen, or sheet
  • double linen, or double sheet such as a double linen for beddings.
  • the fluid absorbent/resistant layers are placed at the relevant areas.
  • the front part of the sleeping liner and the back part of the sleeping liner may be manufactured simultaneously based on two coherent layers of the inner permeable layer and the outer permeable layer, where the fluid absorbent/resistant layers are positioned at the relevant areas (corresponding to the front and the back) in the space formed between the two layers.
  • the two layers are subsequently folded and joined alont the edges to form a front part and a back part.
  • Parts of the sleeping liner according to the present disclosure comprises at least three layers.
  • the layers are made of fabric.
  • a fabric, or textile is characterized by a fabric structure, which will depend on the type of fibers, yarn, fabric production method, e.g. weave settings or non-woven synthetic fabric, and fabric treatment e.g. surface coating.
  • a fabric structure includes porosity, which may further be characterized by the pore sizes, the pore size distribution, and the pore shapes.
  • the fabric may be vapour and/or fluid permeable, fluidproof, fluid-repellent, fluid-resistant, and/or fluid absorbent.
  • a fluid comprises mainly water, and the fabric properties are referred to as: water permeable, waterproof, water-repellent, water-resistant, and/or water absorbent.
  • the terms fluid and water are used interchangeably.
  • fluid resistant as used herein is meant“liquid resistant” or“water resistant”.
  • a fluid resistant fabric may be breathable, i.e. allow a gas phase, such as water vapor, to pass through, as known from Gore-Tex.
  • Other examples of water/fluid resistant materials, which are breathable, include modified polyethylen (PE) or PE composites, such as PE/calcium carbonate (CaC03) composite films, used for food packaging.
  • PE polyethylen
  • CaC03 PE/calcium carbonate
  • waterproof is meant a material, which is impervious to water, even at high concentrations and pressures above atmospheric pressure.
  • water- repellent is meant a material, which is not easily penetrated by water at atmospheric pressure.
  • water-resistant is meant a material, which only resists penetration of water at low concentration or low pressure, such as moisture. However, a water-resistant material only resist penetration of water at atmospheric pressure to some degree and not entirely.
  • a water/fluid resistant layer is advantageously further water/fluid repellent, and advantegously further water/fluid proof.
  • water permeable is meant a material, which is easily penetrated by water, even water at low concentration and low pressure, such as moisture.
  • a water permeable material may further be water absorbent.
  • the fabric allows the water to be easily transported into the fabric, and instead of being transported through the fabric, it is retained in the fabric.
  • a water absorbent fabric is characterised by pores with a high capillary action, such that there is a driving force for drawing moisture and water from the surroundings into the fabric, where it is absorbed.
  • a water absorbent fabric may have a low compression leakage. Compression leakage is related to the pressure at which, the absorbent will leak or expel the absorbed liquid.
  • a water absorbent fabric may further be wicking.
  • Wicking is related to the drying process of a fabric. Drying of a fabric will progress from the surface of the fabric, and into the interior of the fabric. However, for a water absorbent fabric prone to wicking, the progression of the drying into the interior of the fabric is counteracted by moisture and water from the interior of the fabric being drawn or reabsorbed to the surface of the fabric by the capillary action. Thus, wicking means that moisture and water are being drawn to the fabric surface, like traveling up the wick of a candle.
  • the at least three layers of the sleeping liner according to the present disclosure facilitate that the user’s bodily fluids, such as sweat in the form of moisture and water, are first transported through the inner moisture permeable layer, and then retained in the middle absorbent layer, sandwiched between the inner and outer layer.
  • the moisture is retained in the absorbent layer, since the fabric is configured to be absorbent, and since the outer layer is configured to be moisture resistant, thereby preventing the moisture from getting further transferred into the surroundings, such as the normal bedding.
  • the bodily fluids excreted during sleep are typically fluids in low concentration and/or low pressure.
  • sweat is typically present as moisture excreted over a larger body surface area.
  • concentration of the fluid per surface area is low.
  • fluid in the form of sweat has a low liquid pressure, essentially atmospheric pressure, since it is excreted at atmospheric pressure.
  • the sleeping liner of the current disclosure is adapted for collecting bodily fluids, e.g. sweat, where the fluids are low concentration and/or low pressure fluids.
  • the fluids may be easily retained in the absorbent layer, and further prevented from migrating to the surrounding by the resistant layer.
  • low concentration and/or low pressure fluids are sweat and drops of urine having a volume below 1 , 3, 6, or 9 ml_.
  • the bodily fluids are low concentration and/or low pressure fluids, or liquid fluids, such as sweat.
  • Fluid absorbent layer is low concentration and/or low pressure fluids, or liquid fluids, such as sweat.
  • the fluid absorbent layer is configured for absorbing, or collecting, the bodily fluids containing the toxic materials from chemotherapy treatment.
  • the absorbent layer function in the same manner as a diaper, sanitary towel, or incontinence pad, and similar to these objects, the absorbent layer is advantageously configured to be disposable.
  • the absorbent layer is configured to be disposable as a diaper, sanitary towel, or incontinence pad.
  • the maximum amount of fluid which may be absorbed in an absorbent layer is referred to as the fluid absorbency, or fluid absorption capacity.
  • the capacity is adapted to the level of sweat generated by a person in chemotherapy treatment during a night. Night sweats are common for many cancer patients, thus advantageously, the absorbent layer is a superabsorbent with a high fluid absorption capacity.
  • the absorption capacity may be quantified by the Rothwell ISO 948-1 scale, where a value of 113 means 2100-2499 g, 114 means 2500-2899 g, and 115 means 2900-3299 g absorbtion for a given product. Thus, a 3 liters absorbtion for a given product corresponds to a value of 115.
  • the absorbent layer is a superabsorbent having a fluid absorption capacity of between 0.5-8, more preferably between 1-5, and most preferably between 2-3 L/m 2 .
  • the absorbent layer is having a fluid absorption capacity of above 113, more preferably above 114, and most preferably equal to 115 on the Rothwell scale.
  • the absorbent layer does not act as a thermal insulator, such that the thermal energy from the user may be easily transferred to the surroundings.
  • the sleeping liner is both breathable and easily conducts both excess water vapor and heat away from the user.
  • the absorbent layer is a thermal conductor, preferably having a thermal conductivity above 0.1 or 0.2 W/(m K) at 25 °C, such that layer is configured to conduct excess water vapor and/or heat away from the user.
  • An absorbent layer with tailored fluid absorption capacity and thermal conductivity is advantageously a fabric, comprising microfibers, , fluff, SAP (super absorbent polymers), rayon, bleached rayon, cotton, or combinations thereof.
  • the absorbent layer comprises a material selected from the group of: microfibers, fluff, SAP (super absorbent polymers), rayon, bleached rayon, cotton, and any combinations thereof.
  • Fluid resistant layer a material selected from the group of: microfibers, fluff, SAP (super absorbent polymers), rayon, bleached rayon, cotton, and any combinations thereof.
  • the sleeping liner comprises an outer fluid resistant layer.
  • the outer fluid (liquid) resistant layer is only included in the parts of the liner comprising the absorbent layer.
  • the risk of fluid (liquid) leakage to the surroundings will decrease, the more fluid resistant the layer.
  • Fluid resistant layers, including a fluid repellent or fluid proof layers are typically further hydrophobic.
  • fluid resistant layers which may be further fluid-repellent and/or fluidproof
  • fabrics comprising plastic materials such as rubber or vinyl, tightly woven fabric, and fabric coated with resin.
  • the resistant layer is advantageously comprising or made of bioplastics.
  • the plastic can be biodegradable and environmentally friendly.
  • a bio-based plastic can be one or more of Starch-based plastics, cellulose-based plastics, protein-based plastics, aliphatic polyesters, polyamide 1 1 , bio-derived polyethylene, polyhydroxyurethanes and lipid-derived polymers.
  • the fluid resistant, or liquid resistant, layer is further breathable, i.e. allow a gas phase, such as water vapor, to pass through, as known from Gore-Tex and modified polyethylen (PE) or PE composites, such as PE/calcium carbonate (CaC03) composite films.
  • a gas phase such as water vapor
  • the breathability, or permeability of gas phases or vapour through a fluid resistant layer may be measured as the moisture vapor transmission rate (mvtr).
  • the fluid resistant layer has a moisture vapor transmission rate (mvtr) of less than 5000 g/m2/day, more preferably less than 3000 g/m2/day, most preferably less than 2000 g/m2/day, or between 500-5000, more preferably between 1000-4000 or 1500-300, and most preferably between 1800-2000 g/m2/day.
  • mvtr moisture vapor transmission rate
  • the MVTR is preferably measured using the ASTM F1249 standard.
  • the outer resistant layer is further fluid-repellent or fluid-proof.
  • the resistant layer comprises plastic materials, preferably bioplastics, such as bio-derived polyethylene.
  • the fluid resistant layer is breathable, and comprises modified PE or PE composites, preferably PE/CaC03 composites.
  • the outer fluid resistant layer may be the same or different at different parts of the liner.
  • Figure 9 shows an embodiment of the liner in a cross-sectional sketched view. A person is placed within the liner, and the person is sleeping on the back, such that the back of the person is in contact with a back part of the sleeping liner, and the front of the person is in contact witht a front part of the sleeping liner. The person’s body, both back and front, is in contact with an inner layer 1 of the liner, such as the inner fluid permeable layer according to the present disclosure.
  • the outer layer 3 is in contact with the surroundings, and sandwiched between the inner layer and outer layer is a middle layer 2, such as the fluid absorbent layer according to the present disclosure.
  • the outer layer is a fluid resistant layer layer according to the present disclosure, and the type of fluid resistancy may be the same or different on different parts of the liner, e.g. different on the back and front side.
  • the outer layer on the back and front side are fluid resistant layers.
  • the outer layer on the back side is a fluid proof layer
  • the outer layer on the front side is a fluid repellent layer.
  • the outer layer is a fluid proof layer on both the back and front side.
  • the outer layer is a fluid repellent layer on both the back and front side.
  • the outer layer on the back side is a fluid repellent layer
  • the outer layer on the front side is a fluid proof layer.
  • all three layers do not need to be continuously within liner.
  • the middle layer and outer layer may be comprised in selected parts or patches of the liner, and the back side and the front side may be joined along the edges.
  • the inner permeable layer is in contact with the skin of the user.
  • it is a fabric with a comfortable skin-feel, and a fabric which is dry and does not provide a desiccating effect on the skin of the user.
  • the fabric of the inner fluid permeable layer is advantageously configured to be non-absorbent, and/or non- wicking.
  • the inner permeable layer simply facilitates the transport of the bodily fluids into the absorbent layer, and further facilitates that the inner layer remains dry without having a drying out effect.
  • a non-wicking inner layer ensures that the contaminated fluids present in the absorbent layer are not reabsorbed to the surface of the inner layer.
  • Examples of fluid permeable layers adapted to be non-absorbent and/or non-wicking includes fabrics comprising linen, cotton, viscose, and combinations thereof.
  • the fluid permeable layers comprises nonwoven fabric, which has been dermatologically tested.
  • the inner permeable layer is further non-absorbent, and/or non-wicking.
  • the inner permeable layer comprises a material selected from the group of: linen, cotton, viscose, nonwoven fabric, and any
  • the sleeping liner may be used in a family bed, where other members are adjacent to the sleeping liner.
  • the materials of the sleeping liner in contact with the user, as well as in contact with the surroundings should be comfortable to sleep with in a normal bed and bed linen.
  • This may be obtained by the sleeping liner comprising a second fluid permeable layer superposed to the outer resistant layer, thus forming the contact area to the surroundings.
  • the second fluid permeable layer is advantageously made of the same, or similar, comfortable fabric as the inner permeable layer, such as a fabric comprising linen, cotton, viscose, nonwoven fabric, and combinations thereof.
  • the sleeping liner further comprises a second fluid permeable layer superposed to the outer resistant layer.
  • the inner permeable layer and the second permeable layer are joined along one or more edges, and the fluid absorbent and fluid resistant layers are subsequently positioned in the space formed between the two layers or sheets.
  • the inner permeable layer and the second permeable layer may be formed from a single coherent layer, such as a single linen, or sheet, which is folded and optionally further joined along the edges, to form a double linen, or double sheet, such as a double linen for beddings. In the space between the double layer of linen, the fluid absorbent layer and resistant layer are placed.
  • the inner permeable layer, and the second fluid permeable layer are joined along one or more edges, such as a double linen for beddings.
  • the inner permeable layer and the second fluid permeable layer are configured to be formed from a single coherent layer.
  • the presence of the absorbent layer and the moisture resistant layer are advantageously limited to the areas of the sleeping liner in contact with the head and body core. This will further have the advantages of reducing the costs of materials, and further improve the comfort of the sleeping liner by imitating normal bed linen as much as possible. It is therefore advantageous that the absorbent layer and moisture resistant layer cover an as small as possible area of the sleeping liner, but also cover a sufficient area to ensure that the majority of the excreted bodily fluids are collected in the absorbent layer.
  • the fluid resistant layer and the absorbent layer cover below 70%, and more preferably below 60, 50, 40, or 30% of the inner area of the liner. In a further embodiment, the fluid resistant layer and the absorbent layer are placed in the areas of the sleeping liner in contact with the head and body core.
  • Figures 1 (A)-(D) show embodiments of a sleeping liner seen from the top or front
  • Figure 1 A shows an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the chest of a person laying on the back
  • Figure 1 B shows a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a dotted area present at the area in contact with the body core.
  • Figure 1 (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness.
  • FIG. D is an embodiment of the sleeping liner in (C) further comprising a pillow inserted into an integrated pillow insert sleeve.
  • Figure 1 (E) shows a close-up of the integrated pillow insert sleeve, where the pillow may be inserted from the top of the liner, or from the back side of the liner, as shown in the embodiment.
  • Figure 2 shows an embodiment of a sleeping liner seen from the back
  • Figure 2A shows an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the back and head of a person laying on the back
  • Figure 2B shows a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a grey area present at the area in contact with the body core.
  • Figure 2 (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness.
  • Figure 6 shows an embodiment of a sleeping liner according to the present disclosure as seen from the front (schematic to the left), and from the back (schematic to the right), where examples of dimensions and distances in centimeters are included.
  • the dimensions may be different, e.g. the fluid absorbent and fluid resistant part in the front part (shown dotted in the schematic to the left) may have a height of 90 cm instead of 60 cm, and a width of 70 cm instead of 60 cm.
  • the width of the sleeping liner may be 100 cm instead of 120 cm, and the distance from the top of the liner to the termination of the opening mechanism for accessing the sleeping liner may be 100 cm instead of 92 cm.
  • the fluid absorbent and fluid resistant part in the back part (indicated with solid lines in the schematic to the right) may have a height of 155 cm instead of 150 cm.
  • the liner advantageously comprises a recloseable opening mechanism, such that the user may easily access the sleeping liner, and subsequently easily ensure that the sleeping liner encompasses the user, and avoids direct contact between the user and the normal bedding.
  • a recloseable opening mechanism is a zipper, as known from conventional sleeping bags, and another example is a velcro mechanism.
  • the sleeping liner comprises a simple opening, i.e. an aperture, preferably a seamless aperture. This may reduce the risk of preasure ulcers, which may be associated with e.g. a zipper mechanism.
  • the liner comprises a recloseable opening mechanism for accessing the sleeping liner, such as a velcro or zipper mechanism.
  • the liner comprises a simple opening.
  • the sleeping liner To improve the comfort for the user of the sleeping liner, the sleeping liner
  • FIG. 3 shows an embodiment of the sleeping liner according to the present disclosure comprising an opening for ventilating the feet, or ventilating a portion of the lower leg or feet.
  • the opening may be formed by a recloseable opening mechanism, such as a zipper as illustrated in Figure 3A.
  • the opening may be formed by a Velcro-based mechanism, and/or the sleeping liner may comprise an area, where the fabric is a net, or be a simple opening as shown in Figure 3 (B).
  • the bottom of the sleeping liner such as the lower 60 cm of the sleeping liner, may be made of a net material.
  • the sleeping liner comprises one or more simple openings for ventilating, preferably seamless openings. This may reduce the risk of preasure ulcers, which may be associated with e.g. a zipper mechanism.
  • the liner comprises one or more openings for ventilating at least a portion of the feet, legs and/or arms, such as a net opening, a Velcro or zipper opening.
  • the liner comprises one or more simple opening(s).
  • the sleeping liner To improve the comfort for the user of the sleeping liner, the sleeping liner
  • FIG 4 (A) shows an embodiment of the sleeping liner according to the present disclosure, where a pillow has been inserted into a pillow insert sleeve.
  • Figure 4 (B) shows an embodiment of the sleeping liner according to the present disclosure comprising an opening mechanism for accessing the sleeping liner in the form of an opening between the front and back of the liner with a predetermined extension. The opening may be terminated by seams or other means for attaching the front and back of the liner along the edge.
  • the front of the sleeping liner may be separated from the back of the sleeping liner by folding the front part away from the back part as indicated in (B), whereby the liner may be easily accessed by a person.
  • the sleeping liner comprises an integrated pillow insert sleeve.
  • the sleeping liner is advantageously dimensioned to the user.
  • the liner is advantageously dimensioned to the user.
  • a sleeping liner dimensioned for an adult is described below, including the dimension and position of the fluid absorbent and fluid resistant layers.
  • the same relative dimensions may be applied to sleeping liners adjusted in length and width to adults of other sizes as well as children.
  • the sleeping liner is dimensioned for an adult or a child.
  • FIG. 1-2 An example of a sleeping liner dimensioned for an adult is illustrated in Figures 1-2, where Figure 1 shows the front, and Figure 2 the back of the sleeping liner.
  • the sleeping liner comprises an inner fluid permeable layer made of linen (shown with dark colour), where the linen comprises an area on the front and an area on the back (shown with white colour), the areas comprising the fluid absorbent and fluid resistant layers.
  • the length of the sleeping liner is exemplified as 210 cm, and the width exemplified as 120 cm.
  • the linen area comprising the fluid absorbent and fluid resistant layers is exemplified as having a squared dimension as illustrated in Figure 1 , and the dimensions are exemplified as 60 x 60 cm.
  • the linen area comprising the fluid absorbent and fluid resistant layers is exemplified as being larger than at the front.
  • the length is exemplified as 150 cm, and the width 80 cm.
  • FIG. 6 The exemplified dimensions and distances in centimeters are further illustrated in Figure 6, showing an embodiment of a sleeping liner according to the present disclosure as seen from the front (schematic to the left), and from the back (schematic to the right).

Abstract

The invention regards a disposable sleeping liner, wherein at least a part of the liner comprises: an inner fluid permeable layer, - an outer fluid resistant layer, and a fluid absorbent layer, sandwiched between the outer and inner layer, and suitable for collecting bodily fluids, which contains toxic residues from chemotherapy treatment.

Description

Disposable sleeping liner
Field of invention
The present invention relates to a disposable sleeping liner for collecting bodily fluids e.g. sweat, and a kit comprising the disposable sleeping liner and a cover, such as a bag, suitable for covering the sleeping liner such that the sleeping liner may be safely and conveniently discarded after use. The present invention further relates to use of a sleeping liner for collecting bodily fluids.
Background of invention
Numerous drugs are used for medical treatment, and particularly medical
chemotherapy treatment, e.g. in Denmark more than 70 types of drugs are used in cancer treatment. Common to the drugs used for medical treatment and medical chemotherapy treatment is that many are highly toxic, as the substances are generally both cytotoxic, carcinogenic, genotoxic and/or mutagenic.
During preparation and administration of the drugs, great care is taken to avoid exposing the staff to the drugs by using specially designed preparation rooms and various protective clothes, and nurses are also appropriately protected during administration of medical chemotherapy to the patient.
Patients in chemotherapy will of course be exposed to the drugs during treatment. The patients may typically receive the chemotherapy in an ambulatory setting and then be sent home shortly after. Treatment may also take place in the patients home during a visit from a healthcare professional. After the drugs have been administered to the patients, no further precautions are generally taken.
Residues of a medical treatment may be excreted by the patient after treatment. It is for example a known fact that residues of chemotherapy are excreted by the patient after treatment, even though the excretion may be difficult to detect, depending on the concentration and chemical nature of the residues. Typically this excretion happens up to 5 days after treatment. The excretion occurs in bodily fluids such as urine, feces, vomit, saliva, and sweat via the skin. When patients are at home, these residues are disposed of in the patient’s home setting, e.g. in the mattress, pillow and bedding.
When washed, these residues will be going into the normal sewage system. Thus, there is a risk of exposing family members and care takers to these residues. In addition, medical chemotherapy drugs and their residues are difficult to remove with normal sewage treatment methods, and special treatment are favourable to prevent it from ending up in the nature and harming the environment.
There is a need for limiting the amount of medical residues, and particularly chemotherapy residues, in the home settings of patients receiving this treatment, as well as a need for collecting and disposing of it in an environmental friendly manner. Particularly, so far, there is no effective solutions addressing the problem of limiting the residues from medical chemotherapy from sweat.
Pending patent application PCT/EP2018/057467 entitled“Toilet bag for collecting bodily waste” describes a device for conveniently collecting bodily waste in the form of urine and faces from patients treated with chemotherapy.
Summary of invention
The present invention provides a device and a kit for reducing the amount of excreted residues from a medical treatment, such as chemotherapy treatment, in the home settings of patients receiving treatment with medical chemotherapy or other medical treatments, as well as a device and a kit for collecting and disposing the excreted residues of medical treatment and chemotherapy in an environmental friendly manner.
A first aspect of the invention relates to a disposable sleeping liner, wherein at least a part of the liner comprises:
an inner fluid permeable layer,
an outer fluid resistant layer, and
a fluid absorbent layer, sandwiched between the outer and inner layer, and suitable for collecting bodily fluids, which contain toxic residues from chemotherapy treatment.
In a preferred embodiment, the outer fluid resistant layer is a fluid/liquid repellent layer or a fluid/liquid proof layer. In a preferred embodiment, the bodily fluids are sweat. In a further preferred embodiment, the toxic residues are residues from chemotherapy treatment excreted through the skin.
A second aspect of the invention relates to a kit comprising the presently disclosed disposable sleeping liner, and a cover for the sleeping liner.
In a preferred embodiment, the cover is a bag suitable for storing the used sleeping liner.
A third aspect of the invention relates to use of a sleeping liner for collecting bodily fluids, such as sweat, which contain toxic residues from chemotherapy treatment, e.g. the presently disclosed sleeping liner.
Description of Drawings
The invention will in the following be described in greater detail with reference to the accompanying drawings.
Figures 1 (A)-(D) show embodiments of a sleeping liner according to the present disclosure as seen from the top or front. (A) is an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the chest of a person laying on the back. (B) is a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a dotted area present at the area in contact with the body core. (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness. (D) is an embodiment of the sleeping liner in (C) further comprising a pillow inserted into an integrated pillow insert sleeve. Figure 1 (E) shows a close-up of the integrated pillow insert sleeve, where the pillow may be inserted from the top of the liner, or from the back side of the liner, as shown in the embodiment.Fiqure 2 shows an embodiment of a sleeping liner according to the present disclosure seen from the back. (A) is an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the back and head of a person laying on the back. (B) is a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a grey area present at the area in contact with the body core. (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness.
Figure 3 shows an embodiment of the sleeping liner according to the present disclosure comprising an opening for ventilating the feet and lower legs, or a portion of the feet and lower legs. (A) shows an embodiment, where the opening is a zipper opening. (B) shows an embodiment of a simple openinq.Fiqure 4 (A) shows an embodiment of the sleeping liner according to the present disclosure, where a pillow has been inserted into a pillow insert sleeve. (B) shows an embodiment of the sleeping liner according to the present disclosure comprising an opening mechanism for accessing the sleeping liner in the form of an opening between the front and back of the liner with a predetermined extension. The opening may be terminated by seams or other means for attaching the front and back of the liner along the edge. Thus, the front of the sleeping liner may be separated from the back of the sleeping liner by folding the front part away from the back part as indicated in (B), whereby the liner may be easily accessed by a person.
Figure 5 shows an embodiment of a cover according to the present disclosure for safely storing and sealing the used sleeping liner comprising a sealable closure mechanism in the form of glue combined with a protective paper.
Figure 6 shows an embodiment of a sleeping liner according to the present disclosure as seen from the front (schematic to the left), and from the back (schematic to the right). Examples of dimensions and distances in centimeters are included. In other embodiments of the sleeping liner, the dimensions may be different, e.g. the fluid absorbent and fluid resistant part in the front part (shown dotted in the schematic to the left) may have a height of 90 cm instead of 60 cm, and a width of 70 cm instead of 60 cm. Also, the width of the sleeping liner may be 100 cm instead of 120 cm, and the distance from the top of the liner to the termination of the opening mechanism for accessing the sleeping liner may be 100 cm instead of 92 cm. Also, the fluid absorbent and fluid resistant part in the back part (indicated with solid lines in the schematic to the right) may have a height of 155 cm instead of 150 cm.Fiqure 7 shows an embodiment of a cover according to the present disclosure comprising a sealable closure mechanism in the form of glue combined with a protective paper. (A) shows an embodiment, where the cover is open, (B) shows an embodiment, where the protective paper is partially removed, and (C) shows an embodiment, where the cover has been sealed.
Figure 8 shows an embodiment of the cover shown in Figure 7, where examples of dimensions and distances in centimeters are included.
Figure 9 shows an embodiment of the liner in a cross-sectional sketched view. A person is placed within the liner, and the person is sleeping on the back, such that the back of the person is in contact with a back part of the sleeping liner, and the front of the person is in contact witht a front part of the sleeping liner. The person’s body, both back and front, is in contact with an inner layer 1 of the liner, such as an inner fluid permeable layer. An outer layer 3 is in contact with the surroundings, and sandwiched between the inner layer and outer layer is a middle layer 2, such as a fluid absorbent layer. The outer layer may be the same or different on the back and front side. In a preferred embodiment, the outer layer on the back side is a fluid resistant layer, while the outer layer on the front side is a fluid repellent layer. In another embodiment, the outer layer is a fluid resistant layer on both the back and front side. In another embodiment, the outer layer is a fluid repellent layer on both the back and front side. As indicated by dotted lines, and also shown in e.g. figures 1 -4, all three layers do not need to be continuously within liner. For example, the middle layer and outer layer may be comprised in selected parts or patches of the liner, and the back side and the front side may be joined along the edges. Detailed description of the invention
The invention is described below with the help of the accompanying figures. It would be appreciated by the people skilled in the art that the same feature or component of the device are referred to with the same reference numeral in different figures.
Disposable sleeping liner
In the home settings of patients receiving chemotherapy treatment, the bed is one of the main sites exposed to residues of medical chemotherapy. By the term“residues from chemotherapy” is meant the medical chemotherapy drugs and their residues excreted from a patient subsequent to receiving chemo treatment, such as the residues in sweat. The residues from chemotherapy may also be referred to as“chemo residues” or“secondary chemo”. Residues of chemo may be excreted through bodily fluids, e.g. through the skin, and due to night sweats, which are common for many cancer patients, a significant proportion of the chemo residues will over a treatment period of often many month end up in the family bed. Thus, the bedlinen, pillow, duvet, and mattress are contaminated with toxic sweat residues, such as cytotoxic residues. Bedlinen may also be referred to as bedclothes or bedding. Frequent washing of the bedlinen further results in the toxic sweat residues going into the normal sewage system. There is also a risk of exposing people who changes the bedlinen.
The present invention provides a sleeping liner for reducing the amount of chemo residues in the home settings and hence the normal sewage system. Correspondingly, the present invention provides a sleeping liner for reducing the amount of residues from any medical treatment, where residues of a medical treatment may be excreted by the patient after the treatment.
A sleeping liner defines an inner area, or inner surface area, which can be in direct contact with the user, when the user accesses the sleeping liner. A sleeping liner may be used instead of, or in addition to, normal bedlinen applied on a pillow and duvet. Thus, for a person sleeping on the back in a bed and who is within the sleeping liner according to the present disclosure, the back of the person is in contact with a back part of the sleeping liner, and the front of the person is in contact witht a front part of the sleeping liner.
The sleeping liner is adapted for e.g. absorbing the sweat from the skin during use, and after use, the sleeping liner may be packed and sealed in a cover. Optionally, the sleeping liner may be further provided or stored in the cover before use. Examples of covers which may be adapted for sealable closure include covers in the form of bags and/or sleeves. Thus, the terms“cover”,“bag”, and“sleeve” are used interchangeably.
The sealed cover or bag may easily be disposed e.g. by disposing the sealed waste bag in the normal household waste, or via the system for clinical risk waste, also known as the yellow bag system. Advantageously, the sleeping liner may be packed and sealed after use by the user himself, such that the exposure of medical chemo residues to the surroundings are further reduced. In an embodiment of the disclosure, the cover is a bag suitable for storing the used sleeping liner. By motivating patients to use disposable sleeping liners up to 3-5 days post-treatment, the amount of chemo residues in the home settings and the normal sewage system or waste system may be significantly reduced. The disposable sleeping liner should optimally be changed one time a day. The sleeping liner prevents the bedlinen, pillow, duvet, and mattress from becoming reservoirs of chemo residues during a course of chemotherapy treatment, and it thus further reduces the amount of chemo residues that family members, and care staff, are exposed to. To ensure reduced chemo exposure in the home settings and the environment, it is preferable that the sleeping liner is adapted for single use and configured to be disposable in the same manner as e.g. diapers, sanitary towels, and incontinence pads. Further advantageously, the sleeping liner is changed once per day, or after each use. By the term“disposable” is therefore meant that the sleeping liner is not washable and/or reusable.
Further to reduce the exposure of medical chemo residues it is advantageous that the sleeping liner is provided with a dedicated cover or bag for packing and sealing the sleeping liner after use. Thus, the sleeping liner and bag forms an easily disposable kit. To further improve the simplicity and safety of the disposal process, and e.g. to comply with environmental regulations, it is advantageous that the bag further comprises information on the safety specifications, e.g. by use of a label.
To further improve the simplicity and safety of the disposal process, it is advantageous that the cover or bag is made of a robust material, which is not prone to accidental tear and puncture. Examples of robust plastic materials include linear, low-density polyethylene and bio-based plastics with a thickness above 10 microns, such as 20-40 microns. It is further advantageous that the cover or bag has a suitable shape and size such that the sleeping liner may be easily unpacked and/or packed into the cover without risk of tear. For example, the cover may have the form of an envelope or a plastic bag.
In an embodiment of the disclosure, the cover or bag comprises or is made of a low- density polyethylene or bio-based plastics with a thickness above 10 microns, such as 20-40 microns. In a further embodiment, the cover is shaped as an envelope or bag, optionally with a dimension of 50 cm x 60 cm.
It is further advantageous that the cover or bag comprises a resealable and/or resealable closure mechanism, such that the used sleeping liner may be securely sealed. Examples of sealable closure mechanisms include pressure sensitive adhesive, tapes and/or glue. In an embodiment of the disclosure, the cover comprises a resealable closure mechanism, such as a pressure sensitive adhesive, tapes and/or glue.
To further improve the safety of the disposal process, the closure mechanism is advantageously sealable and non-resealable, such as glue combined with a protective paper. When the protective paper is removed, and the sealed closure formed, it cannot be reopened. In an embodiment of the disclosure, the cover comprises a sealable and non-resealable closure mechanism, such as glue combined with a protective paper.
Figures 5 shows an embodiment of a cover comprising a sealable closure mechanism, in the form of glue combined with a protective paper, where the sleeve and protective paper is similar to a sealable envelope.
Figures 7-8 show another embodiment of a cover, or bag or sleeve, comprising a sealable closure mechanism in the form of glue combined with a protective paper. Figure 7A shows an embodiment of the open cover having a shape similar to a sleeping bag cover and further comprising a strip of glue combined with a protective paper. After packing the used sleeping liner into the cover, the protective paper may be removed, as illustrated in Figure 7B, and the opening of the sleeve may be folded and contacted to the glue to form a sealed closure, as illustrated in Figure 7C. Figure 8 shows an embodiment of the cover shown in Figure 7, where examples of dimensions and distances in centimeters are included.
As described above, it is advantageous that the cover or bag is made of a robust material, which is not prone to accidental tear and puncture. For example, the cover may comprise or be made of a plastic material, such as a bio-based plastic. Thereby the plastic can be biodegradable and environmentally friendly. Such a bio-based plastic can be one or more of Starch-based plastics, cellulose-based plastics, protein-based plastics, aliphatic polyesters, polyamide 11 , bio-derived polyethylene,
polyhydroxyurethanes and lipid-derived polymers.
Preferably the material for the bag is puncture-resistant and/or tear-resistant. This may be achieved by fabricating the bag from a plastic material with a thickness of at least 20 microns, more preferably at least 40 microns, yet more preferably at least 60 microns, even more preferably at least 100 microns, most preferably at least 150 microns. In one example of the disclosure, the bag is made from 50 micron thick polyurethane.
Puncture-resistance and/or tear-resistance may also be provided by fabricating the bag from multiple layers of for example plastic. Alternatively the bag may be fabricated from an elastic material such as rubber. In one embodiment of the invention the bag is made from double layered plastic. Multiple layers add even more safety to the invention, as the bag is redundant such that a tear in one layer of the bag does not lead to leak or spillage to the surroundings.
Fabric characteristics
For a person sleeping on the back within the sleeping liner according to the present disclosure, the back of the person is in contact with a back part of the sleeping liner, and the front of the person is in contact witht a front part of the sleeping liner. The back part and the front part of the sleeping liner may be joined along three of the edges to form the liner, in a similar manner as an open envelope.
Thus, the sleeping liner defines an inner area, or inner surface area, which is in contact with the user. The inner area of the liner may be formed and defined by an inner layer. Since the inner layer is in contact with the skin of the user, the inner layer is
advantageously a fabric with a comfortable skin-feel as well as a breathable fabric. Thus, the inner layer is advantageously a fluid permeable layer, such as a nonwoven fabric.
In addition to the inner layer defining the inner surface of the sleeping liner, at least a part of the sleeping liner further comprises an outer fluid resistant layer, and a fluid absorbent layer sandwiched between the outer and inner layer. Thus, the sleeping liner according to the present disclosure comprises at least three layers of fabric: an inner fluid permeable layer, an outer fluid resistant layer, and a fluid absorbent layer sandwiched between the outer and inner layer. By the term“outer layer” is meant the layer being closest to the surroundings, and by the term“inner layer” is meant the layer having direct contact to the user or person accessing the sleeping liner.
Since bodily fluids such as sweat are mainly excreted from the head, neck and/or body core, i.e. the torso front and back, the presence of the fluid absorbent layer and the fluid resistant layer are advantageously limited to the areas of the sleeping liner in contact with the head and body core. To further reduce the amount of materials, the fluid absorbent layer and fluid resistant layer cover different areas in the front of the sleeping liner, compared to the back of the sleeping liner. This is for example seen in Figure 6, where the fluid absorbent/resistant layers (shown dotted) are limited to the central area of the front part (schematic shown to the left), whereas the fluid
absorbent/resistant layers (shown with solid lines) are covering a larger part of the back part, including the top of the liner in contact with the head of the user (schematic shown to the right). Advantageously, the fluid absorbent layer and fluid/moisture resistant layer cover an as small as possible area of the sleeping liner, but also cover a sufficient area to ensure that the majority of the excreted bodily fluids are collected in the absorbent layer.
Since the sleeping liner may be used in a family bed, where other members are adjacent to the sleeping liner, the materials of the sleeping liner in contact with the user, as well as in contact with the surroundings, should be comfortable to sleep with in a normal bed and bed linen. Thus advantageously, the sleeping liner comprises a further outer layer, which is identical to the inner fluid permeable layer in contact with the user, such that the fluid absorbent/resistant layers are sandwiched between the inner fluid permeable layer and the outer fluid permeable layer, in the parts where the fluid absorbent/resistant layers are placed. In the parts of the liner without presence of fluid absorbent/resistant layers, the inner fluid permeable layer is in direct contact with the outer fluid permeable layer.
Advantageously, the inner fluid permeable layer is identical to the outer fluid permeable layer, and both preferably comprises a nonwoven fabric. This design of layers facilitates easy and simple manufacturing, since the inner permeable layer and the outer (second) permeable layer may be easily joined along one or more edges, and the fluid absorbent and fluid resistant layers positioned at the relevant areas in the space formed between the two layers or sheets.
To further simplify the manufacturing, the inner permeable layer and the outer (second) permeable layer may be formed from a single coherent layer, such as a single linen, or sheet, which is folded and optionally further joined along the edges, to form a double linen, or double sheet, such as a double linen for beddings. In the space between the double layer of linen, the fluid absorbent/resistant layers are placed at the relevant areas.
To further simplify the manufacturing, the front part of the sleeping liner and the back part of the sleeping liner, may be manufactured simultaneously based on two coherent layers of the inner permeable layer and the outer permeable layer, where the fluid absorbent/resistant layers are positioned at the relevant areas (corresponding to the front and the back) in the space formed between the two layers. The two layers are subsequently folded and joined alont the edges to form a front part and a back part.
Parts of the sleeping liner according to the present disclosure comprises at least three layers.
Advantageously, the layers are made of fabric. A fabric, or textile, is characterized by a fabric structure, which will depend on the type of fibers, yarn, fabric production method, e.g. weave settings or non-woven synthetic fabric, and fabric treatment e.g. surface coating. A fabric structure includes porosity, which may further be characterized by the pore sizes, the pore size distribution, and the pore shapes. Depending on the fabric structure, the fabric may be vapour and/or fluid permeable, fluidproof, fluid-repellent, fluid-resistant, and/or fluid absorbent. Typically, a fluid comprises mainly water, and the fabric properties are referred to as: water permeable, waterproof, water-repellent, water-resistant, and/or water absorbent. In the present disclosure, the terms fluid and water are used interchangeably.
Thus, by the term“fluid resistant” as used herein is meant“liquid resistant” or“water resistant”. This means that a fluid resistant fabric may be breathable, i.e. allow a gas phase, such as water vapor, to pass through, as known from Gore-Tex. Other examples of water/fluid resistant materials, which are breathable, include modified polyethylen (PE) or PE composites, such as PE/calcium carbonate (CaC03) composite films, used for food packaging.
By the term“waterproof is meant a material, which is impervious to water, even at high concentrations and pressures above atmospheric pressure. By the term“water- repellent” is meant a material, which is not easily penetrated by water at atmospheric pressure. By the term“water-resistant” is meant a material, which only resists penetration of water at low concentration or low pressure, such as moisture. However, a water-resistant material only resist penetration of water at atmospheric pressure to some degree and not entirely. Thus, a water/fluid resistant layer is advantageously further water/fluid repellent, and advantegously further water/fluid proof.
By the term“water permeable” is meant a material, which is easily penetrated by water, even water at low concentration and low pressure, such as moisture.
Depending on the fabric structure, a water permeable material may further be water absorbent. Thus, the fabric allows the water to be easily transported into the fabric, and instead of being transported through the fabric, it is retained in the fabric. A water absorbent fabric is characterised by pores with a high capillary action, such that there is a driving force for drawing moisture and water from the surroundings into the fabric, where it is absorbed.
Further advantageously, a water absorbent fabric may have a low compression leakage. Compression leakage is related to the pressure at which, the absorbent will leak or expel the absorbed liquid.
Depending on the fabric structure, a water absorbent fabric may further be wicking. Wicking is related to the drying process of a fabric. Drying of a fabric will progress from the surface of the fabric, and into the interior of the fabric. However, for a water absorbent fabric prone to wicking, the progression of the drying into the interior of the fabric is counteracted by moisture and water from the interior of the fabric being drawn or reabsorbed to the surface of the fabric by the capillary action. Thus, wicking means that moisture and water are being drawn to the fabric surface, like traveling up the wick of a candle. The at least three layers of the sleeping liner according to the present disclosure facilitate that the user’s bodily fluids, such as sweat in the form of moisture and water, are first transported through the inner moisture permeable layer, and then retained in the middle absorbent layer, sandwiched between the inner and outer layer. The moisture is retained in the absorbent layer, since the fabric is configured to be absorbent, and since the outer layer is configured to be moisture resistant, thereby preventing the moisture from getting further transferred into the surroundings, such as the normal bedding.
The bodily fluids excreted during sleep are typically fluids in low concentration and/or low pressure. For example, sweat is typically present as moisture excreted over a larger body surface area. Thus, the concentration of the fluid per surface area is low. Furthermore, fluid in the form of sweat has a low liquid pressure, essentially atmospheric pressure, since it is excreted at atmospheric pressure.
Advantageously, the sleeping liner of the current disclosure is adapted for collecting bodily fluids, e.g. sweat, where the fluids are low concentration and/or low pressure fluids. Thus, the fluids may be easily retained in the absorbent layer, and further prevented from migrating to the surrounding by the resistant layer. Examples of low concentration and/or low pressure fluids are sweat and drops of urine having a volume below 1 , 3, 6, or 9 ml_.
In an embodiment of the disclosure, the bodily fluids are low concentration and/or low pressure fluids, or liquid fluids, such as sweat. Fluid absorbent layer
The fluid absorbent layer is configured for absorbing, or collecting, the bodily fluids containing the toxic materials from chemotherapy treatment. Thus, the absorbent layer function in the same manner as a diaper, sanitary towel, or incontinence pad, and similar to these objects, the absorbent layer is advantageously configured to be disposable.
In an embodiment of the disclosure, the absorbent layer is configured to be disposable as a diaper, sanitary towel, or incontinence pad. The maximum amount of fluid which may be absorbed in an absorbent layer is referred to as the fluid absorbency, or fluid absorption capacity. Advantageously, the capacity is adapted to the level of sweat generated by a person in chemotherapy treatment during a night. Night sweats are common for many cancer patients, thus advantageously, the absorbent layer is a superabsorbent with a high fluid absorption capacity. The absorption capacity may be quantified by the Rothwell ISO 948-1 scale, where a value of 113 means 2100-2499 g, 114 means 2500-2899 g, and 115 means 2900-3299 g absorbtion for a given product. Thus, a 3 liters absorbtion for a given product corresponds to a value of 115.
In an embodiment of the disclosure, the absorbent layer is a superabsorbent having a fluid absorption capacity of between 0.5-8, more preferably between 1-5, and most preferably between 2-3 L/m2. In another embodiment, the absorbent layer is having a fluid absorption capacity of above 113, more preferably above 114, and most preferably equal to 115 on the Rothwell scale.
To improve the comfort of the sleeping liner, and further to reduce possible night sweats, it is further advantageous that the absorbent layer does not act as a thermal insulator, such that the thermal energy from the user may be easily transferred to the surroundings. This means that the sleeping liner is both breathable and easily conducts both excess water vapor and heat away from the user.
In an embodiment of the disclosure, the absorbent layer is a thermal conductor, preferably having a thermal conductivity above 0.1 or 0.2 W/(m K) at 25 °C, such that layer is configured to conduct excess water vapor and/or heat away from the user.
An absorbent layer with tailored fluid absorption capacity and thermal conductivity is advantageously a fabric, comprising microfibers, , fluff, SAP (super absorbent polymers), rayon, bleached rayon, cotton, or combinations thereof.
In an embodiment of the disclosure, the absorbent layer comprises a material selected from the group of: microfibers, fluff, SAP (super absorbent polymers), rayon, bleached rayon, cotton, and any combinations thereof. Fluid resistant layer
To ensure that the fluids (liquids) are retained in the absorbent layer, and not by accidental tear or compression is leaked or expelled to the surroundings, the sleeping liner comprises an outer fluid resistant layer. Advantageously, the outer fluid (liquid) resistant layer is only included in the parts of the liner comprising the absorbent layer. The risk of fluid (liquid) leakage to the surroundings will decrease, the more fluid resistant the layer. Thus, even lower leakage risks will be present if the fluid resistant layer is further fluid-repellent or water-repellent, or if it is even fluid-proof or waterproof. Fluid resistant layers, including a fluid repellent or fluid proof layers, are typically further hydrophobic. Examples of fluid resistant layers, which may be further fluid-repellent and/or fluidproof, are fabrics comprising plastic materials such as rubber or vinyl, tightly woven fabric, and fabric coated with resin. To reduce the environmental impact of the disposable sleeping liner, the resistant layer is advantageously comprising or made of bioplastics. Thereby the plastic can be biodegradable and environmentally friendly. Such a bio-based plastic can be one or more of Starch-based plastics, cellulose-based plastics, protein-based plastics, aliphatic polyesters, polyamide 1 1 , bio-derived polyethylene, polyhydroxyurethanes and lipid-derived polymers.
To improve the comfort of the sleeping liner, the fluid resistant, or liquid resistant, layer is further breathable, i.e. allow a gas phase, such as water vapor, to pass through, as known from Gore-Tex and modified polyethylen (PE) or PE composites, such as PE/calcium carbonate (CaC03) composite films.
The breathability, or permeability of gas phases or vapour through a fluid resistant layer may be measured as the moisture vapor transmission rate (mvtr).
In an embodiment of the disclosure, the fluid resistant layer has a moisture vapor transmission rate (mvtr) of less than 5000 g/m2/day, more preferably less than 3000 g/m2/day, most preferably less than 2000 g/m2/day, or between 500-5000, more preferably between 1000-4000 or 1500-300, and most preferably between 1800-2000 g/m2/day.
The MVTR is preferably measured using the ASTM F1249 standard.
In an embodiment of the disclosure, the outer resistant layer is further fluid-repellent or fluid-proof. In a further embodiment of the disclosure, the resistant layer comprises plastic materials, preferably bioplastics, such as bio-derived polyethylene. In a further embodiment, the fluid resistant layer is breathable, and comprises modified PE or PE composites, preferably PE/CaC03 composites.
To improve the comfortability of the sleeping liner, and/or to simplify the manufacturing of the liner, the outer fluid resistant layer may be the same or different at different parts of the liner. Figure 9 shows an embodiment of the liner in a cross-sectional sketched view. A person is placed within the liner, and the person is sleeping on the back, such that the back of the person is in contact with a back part of the sleeping liner, and the front of the person is in contact witht a front part of the sleeping liner. The person’s body, both back and front, is in contact with an inner layer 1 of the liner, such as the inner fluid permeable layer according to the present disclosure. The outer layer 3 is in contact with the surroundings, and sandwiched between the inner layer and outer layer is a middle layer 2, such as the fluid absorbent layer according to the present disclosure. The outer layer is a fluid resistant layer layer according to the present disclosure, and the type of fluid resistancy may be the same or different on different parts of the liner, e.g. different on the back and front side. Generally, the outer layer on the back and front side are fluid resistant layers. In an embodiment, the outer layer on the back side is a fluid proof layer, while the outer layer on the front side is a fluid repellent layer. In another embodiment, the outer layer is a fluid proof layer on both the back and front side. In another embodiment, the outer layer is a fluid repellent layer on both the back and front side. In another embodiment, the outer layer on the back side is a fluid repellent layer, while the outer layer on the front side is a fluid proof layer. As indicated by dotted lines, and also shown in e.g. figures 1-4, all three layers do not need to be continuously within liner. For example, the middle layer and outer layer may be comprised in selected parts or patches of the liner, and the back side and the front side may be joined along the edges.
Fluid permeable layer
The inner permeable layer is in contact with the skin of the user. Thus, advantageously it is a fabric with a comfortable skin-feel, and a fabric which is dry and does not provide a desiccating effect on the skin of the user. To ensure this, the fabric of the inner fluid permeable layer is advantageously configured to be non-absorbent, and/or non- wicking. Thus, the inner permeable layer simply facilitates the transport of the bodily fluids into the absorbent layer, and further facilitates that the inner layer remains dry without having a drying out effect. In addition to keeping the user dry, a non-wicking inner layer ensures that the contaminated fluids present in the absorbent layer are not reabsorbed to the surface of the inner layer. Examples of fluid permeable layers adapted to be non-absorbent and/or non-wicking includes fabrics comprising linen, cotton, viscose, and combinations thereof. Preferably, the fluid permeable layers comprises nonwoven fabric, which has been dermatologically tested.
In an embodiment of the disclosure, the inner permeable layer is further non-absorbent, and/or non-wicking. In an embodiment, the inner permeable layer comprises a material selected from the group of: linen, cotton, viscose, nonwoven fabric, and any
combinations thereof.
Design
The sleeping liner may be used in a family bed, where other members are adjacent to the sleeping liner. Thus, advantageously, the materials of the sleeping liner in contact with the user, as well as in contact with the surroundings, should be comfortable to sleep with in a normal bed and bed linen. This may be obtained by the sleeping liner comprising a second fluid permeable layer superposed to the outer resistant layer, thus forming the contact area to the surroundings. The second fluid permeable layer is advantageously made of the same, or similar, comfortable fabric as the inner permeable layer, such as a fabric comprising linen, cotton, viscose, nonwoven fabric, and combinations thereof.
In an embodiment of the disclosure, the sleeping liner further comprises a second fluid permeable layer superposed to the outer resistant layer.
For easy and simple manufacturing, the inner permeable layer and the second permeable layer are joined along one or more edges, and the fluid absorbent and fluid resistant layers are subsequently positioned in the space formed between the two layers or sheets. To further facilitate simple manufacturing, the inner permeable layer and the second permeable layer may be formed from a single coherent layer, such as a single linen, or sheet, which is folded and optionally further joined along the edges, to form a double linen, or double sheet, such as a double linen for beddings. In the space between the double layer of linen, the fluid absorbent layer and resistant layer are placed.
In an embodiment of the disclosure, the inner permeable layer, and the second fluid permeable layer, are joined along one or more edges, such as a double linen for beddings. In a further embodiment, the inner permeable layer and the second fluid permeable layer are configured to be formed from a single coherent layer.
Since bodily fluids such as sweat are mainly excreted from the head, neck and/or body core, i.e. the torso front and back, the presence of the absorbent layer and the moisture resistant layer are advantageously limited to the areas of the sleeping liner in contact with the head and body core. This will further have the advantages of reducing the costs of materials, and further improve the comfort of the sleeping liner by imitating normal bed linen as much as possible. It is therefore advantageous that the absorbent layer and moisture resistant layer cover an as small as possible area of the sleeping liner, but also cover a sufficient area to ensure that the majority of the excreted bodily fluids are collected in the absorbent layer.
In an embodiment of the disclosure, the fluid resistant layer and the absorbent layer cover below 70%, and more preferably below 60, 50, 40, or 30% of the inner area of the liner. In a further embodiment, the fluid resistant layer and the absorbent layer are placed in the areas of the sleeping liner in contact with the head and body core.
Figures 1 (A)-(D) show embodiments of a sleeping liner seen from the top or front, where Figure 1 A shows an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the chest of a person laying on the back, and Figure 1 B shows a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a dotted area present at the area in contact with the body core. Figure 1 (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness. (D) is an embodiment of the sleeping liner in (C) further comprising a pillow inserted into an integrated pillow insert sleeve. Figure 1 (E) shows a close-up of the integrated pillow insert sleeve, where the pillow may be inserted from the top of the liner, or from the back side of the liner, as shown in the embodiment.
Figure 2 shows an embodiment of a sleeping liner seen from the back, where Figure 2A shows an embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated (by white colour) to be present at the area in contact with the body core, corresponding to the back and head of a person laying on the back, and Figure 2B shows a schematic embodiment, where the presence of the absorbent layer and moisture resistant layer is indicated as a grey area present at the area in contact with the body core. Figure 2 (C) is an embodiment, where the presence of the absorbent layer and the moisture resistant layer is seen as the parts of the sleeping liner, which is less transparent due to the higher thickness.
Figure 6 shows an embodiment of a sleeping liner according to the present disclosure as seen from the front (schematic to the left), and from the back (schematic to the right), where examples of dimensions and distances in centimeters are included. In other embodiments of the sleeping liner, the dimensions may be different, e.g. the fluid absorbent and fluid resistant part in the front part (shown dotted in the schematic to the left) may have a height of 90 cm instead of 60 cm, and a width of 70 cm instead of 60 cm. Also, the width of the sleeping liner may be 100 cm instead of 120 cm, and the distance from the top of the liner to the termination of the opening mechanism for accessing the sleeping liner may be 100 cm instead of 92 cm. Also, the fluid absorbent and fluid resistant part in the back part (indicated with solid lines in the schematic to the right) may have a height of 155 cm instead of 150 cm.
To further improve the comfort and user friendliness of the sleeping liner, the liner advantageously comprises a recloseable opening mechanism, such that the user may easily access the sleeping liner, and subsequently easily ensure that the sleeping liner encompasses the user, and avoids direct contact between the user and the normal bedding. An example of a recloseable opening mechanism is a zipper, as known from conventional sleeping bags, and another example is a velcro mechanism. In another embodiment of the disclosure, the sleeping liner comprises a simple opening, i.e. an aperture, preferably a seamless aperture. This may reduce the risk of preasure ulcers, which may be associated with e.g. a zipper mechanism. In an embodiment of the disclosure, the liner comprises a recloseable opening mechanism for accessing the sleeping liner, such as a velcro or zipper mechanism. In another embodiment, the liner comprises a simple opening.
To improve the comfort for the user of the sleeping liner, the sleeping liner
advantageously comprises one or more openings for ventilating at least a portion of the feet, legs, and/or arms, such as the lower part of the legs. Since bodily fluids such as sweat are mainly excreted from the head, neck and/or body core, the efficiency of the sleeping liner for collecting bodily fluids may be maintained despite the presence of ventilating openings. Figure 3 shows an embodiment of the sleeping liner according to the present disclosure comprising an opening for ventilating the feet, or ventilating a portion of the lower leg or feet. The opening may be formed by a recloseable opening mechanism, such as a zipper as illustrated in Figure 3A. Alternatively, the opening may be formed by a Velcro-based mechanism, and/or the sleeping liner may comprise an area, where the fabric is a net, or be a simple opening as shown in Figure 3 (B). For example the bottom of the sleeping liner, such as the lower 60 cm of the sleeping liner, may be made of a net material. In another embodiment of the disclosure, the sleeping liner comprises one or more simple openings for ventilating, preferably seamless openings. This may reduce the risk of preasure ulcers, which may be associated with e.g. a zipper mechanism.
In an embodiment of the disclosure, the liner comprises one or more openings for ventilating at least a portion of the feet, legs and/or arms, such as a net opening, a Velcro or zipper opening.. In a further embodiment, the liner comprises one or more simple opening(s).
To improve the comfort for the user of the sleeping liner, the sleeping liner
advantageously comprises an integrated pillow insert sleeve. Thus, the efficiency for collecting bodily fluids excreted from the head and/or neck is maintained, while improving the comfort for the user. Figure 4 (A) shows an embodiment of the sleeping liner according to the present disclosure, where a pillow has been inserted into a pillow insert sleeve. Figure 4 (B) shows an embodiment of the sleeping liner according to the present disclosure comprising an opening mechanism for accessing the sleeping liner in the form of an opening between the front and back of the liner with a predetermined extension. The opening may be terminated by seams or other means for attaching the front and back of the liner along the edge. Thus, the front of the sleeping liner may be separated from the back of the sleeping liner by folding the front part away from the back part as indicated in (B), whereby the liner may be easily accessed by a person.
In an embodiment of the disclosure, the sleeping liner comprises an integrated pillow insert sleeve.
To improve the efficiency of the sleeping liner for collecting bodily fluids, e.g. sweat, as well as improving the cost-efficiency, and the comfort of the user, the sleeping liner is advantageously dimensioned to the user. Thus, advantageously, the liner is
dimensioned such that the user has mobility when using the sleeping liner, and at the same time the dimensioning ensures that the head and body core stays in contact with at least the fluid absorbent and fluid resistant layers. An example of a sleeping liner dimensioned for an adult is described below, including the dimension and position of the fluid absorbent and fluid resistant layers. The same relative dimensions may be applied to sleeping liners adjusted in length and width to adults of other sizes as well as children.
In an embodiment of the disclosure, the sleeping liner is dimensioned for an adult or a child.
Example
The invention is further described by the example provided below.
An example of a sleeping liner dimensioned for an adult is illustrated in Figures 1-2, where Figure 1 shows the front, and Figure 2 the back of the sleeping liner. The sleeping liner comprises an inner fluid permeable layer made of linen (shown with dark colour), where the linen comprises an area on the front and an area on the back (shown with white colour), the areas comprising the fluid absorbent and fluid resistant layers.
The length of the sleeping liner is exemplified as 210 cm, and the width exemplified as 120 cm. At the front of the sleeping liner, the linen area comprising the fluid absorbent and fluid resistant layers is exemplified as having a squared dimension as illustrated in Figure 1 , and the dimensions are exemplified as 60 x 60 cm. At the back of the sleeping liner, the linen area comprising the fluid absorbent and fluid resistant layers is exemplified as being larger than at the front. The length is exemplified as 150 cm, and the width 80 cm.
The exemplified dimensions and distances in centimeters are further illustrated in Figure 6, showing an embodiment of a sleeping liner according to the present disclosure as seen from the front (schematic to the left), and from the back (schematic to the right).

Claims

Claims
1. A disposable sleeping liner, wherein at least a part of the liner comprises:
an inner fluid permeable layer,
an outer fluid resistant layer, such as a fluid repellent or fluid proof layer, and
a fluid absorbent layer, sandwiched between the outer and inner layer, and suitable for collecting bodily fluids, which contain toxic residues from chemotherapy treatment.
2. The liner according to claim 1 , wherein the bodily fluids are low concentration and/or low pressure fluids, or liquid fluids, such as sweat.
3. The liner according to any of the preceding claims, wherein the absorbent layer is configured to be disposable as a diaper, sanitary towel, or incontinence pad.
4. The liner according to any of the preceding claims, wherein the absorbent layer is a superabsorbent having a fluid absorption capacity of between 0.5-8, more preferably between 1-5, and most preferably between 2-3 L/m2, or an absorption capacity of above 113, more preferably above 114, and most preferably equal to 115 on the Rothwell scale.
5. The liner according to any of the preceding claims, wherein the absorbent layer is a thermal conductor, preferably having a thermal conductivity above 0.1 or 0.2 W/(m K) at 25°C, such that layer is configured to conduct excess water vapor and/or heat away from the user.
6. The liner according to any of the preceding claims, wherein the absorbent layer comprises a material selected from the group of: microfibers, cellulose, rayon, bleached rayon, cotton, and any combinations thereof.
7. The liner according to any of the preceding claims, wherein the resistant layer is further fluid-repellent or fluidproof, such as waterproof.
8. The liner according to any of the preceding claims, wherein the resistant layer comprises plastic materials, preferably bioplastics such as bio-derived polyethylene (PE), and/or comprises breathable materials, such as modified PE or PE composites, preferably PE/CaCCh composites.
9. The liner according to any of the preceeding claims, wherein the resistant layer has a moisture vapor transmission rate (mvtr) of between 500-5000, more preferably between 1000-4000 or 1500-300, and most preferably between 1800-2000 g/m2/day.
10. The liner according to any of the preceding claims, wherein the inner permeable layer is further non-absorbent, and/or non-wicking.
1 1. The liner according to any of the preceding claims, wherein the inner permeable layer comprises a material selected from the group of: linen, cotton, viscose, nonwoven fabric, and any combinations thereof.
12. The liner according to any of the preceding claims, further comprising a second fluid permeable layer superposed to the outer resistant layer.
13. The liner according to claim 1 1 , wherein the inner permeable layer, and the second fluid permeable layer, are joined along one or more edges, such as a double linen for beddings.
14. The liner according to claim 12, wherein the inner permeable layer and the second fluid permeable layer are configured to be formed from a single coherent layer.
15. The liner according to any of the preceding claims, wherein the fluid resistant layer and the absorbent layer cover below 70%, and more preferably below 60, 50, 40, or 30% of the inner area of the liner.
16. The liner according to any of the preceding claims, wherein the fluid resistant layer and the absorbent layer are placed in the areas of the sleeping liner in contact with the head, neck and/or body core.
17. The liner according to any of the preceding claims, further comprising a
recloseable opening mechanism for accessing the sleeping liner, such as a Velcro or zipper mechanism.
18. The liner according to any of the preceding claims, further comprising one or more openings for ventilating at least a portion of feet, legs and/or arms, such as a net opening, a Velcro or zipper opening.
19. The liner according to any of the preceding claims, further comprising an
integrated pillow insert sleeve.
20. The liner according to any of the preceding claims, dimensioned for an adult or a child.
21. A kit comprising the disposable sleeping liner according to claims 1-19, and a cover for the sleeping liner.
22. The kit according to claim 20, wherein the cover is a bag suitable for storing the used sleeping liner.
23. The kit according to claims 20-21 , wherein the cover comprises a sealable closure mechanism, such as a pressure sensitive adhesive, tapes, and/or glue.
24. Use of a sleeping liner for collecting bodily fluids, such as sweat, which contain toxic residues from chemotherapy treatment.
PCT/EP2019/062387 2018-05-14 2019-05-14 Disposable sleeping liner WO2019219710A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18172098.8 2018-05-14
EP18172098 2018-05-14

Publications (1)

Publication Number Publication Date
WO2019219710A1 true WO2019219710A1 (en) 2019-11-21

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Application Number Title Priority Date Filing Date
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189993A (en) * 1986-04-18 1987-11-11 Arthur Alfred Dilloway Absorbent sheet
EP0369392A2 (en) * 1988-11-18 1990-05-23 Akzo N.V. Absorbent protective pad for a mattres
US5252374A (en) * 1992-02-18 1993-10-12 Paper-Pak Products, Inc. Underpad for incontinent patients
WO2008155126A1 (en) * 2007-06-21 2008-12-24 Albis Spa Liquid absorbent surface pad
US20120053545A1 (en) * 2010-08-26 2012-03-01 Dan Love Disposable Absorbent Lift Device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189993A (en) * 1986-04-18 1987-11-11 Arthur Alfred Dilloway Absorbent sheet
EP0369392A2 (en) * 1988-11-18 1990-05-23 Akzo N.V. Absorbent protective pad for a mattres
US5252374A (en) * 1992-02-18 1993-10-12 Paper-Pak Products, Inc. Underpad for incontinent patients
WO2008155126A1 (en) * 2007-06-21 2008-12-24 Albis Spa Liquid absorbent surface pad
US20120053545A1 (en) * 2010-08-26 2012-03-01 Dan Love Disposable Absorbent Lift Device

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