US3424163A - Sanitary napkin - Google Patents

Sanitary napkin Download PDF

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Publication number
US3424163A
US3424163A US542814A US3424163DA US3424163A US 3424163 A US3424163 A US 3424163A US 542814 A US542814 A US 542814A US 3424163D A US3424163D A US 3424163DA US 3424163 A US3424163 A US 3424163A
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United States
Prior art keywords
wrapper
napkin
core
layer
liquid
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US542814A
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English (en)
Inventor
Gunnar Gravdahl
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SABA GmbH
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SABA GmbH
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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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
    • A61F13/51305—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having areas of different permeability
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F13/53717—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the horizontal direction
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/64—Straps, belts, ties or endless bands
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F2013/53721—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F2013/5694—Other non adhesive means than hook and loop-type fastener or belts

Definitions

  • a disposable sanitary napkin wherein an elongated wrapper which is an integral part of the napkin has an oblong, pad-like absorbent compress positioned therein.
  • the wrapper is made from relatively non-elastic material having extensions at both ends which are designed to be secured to the belt of a user.
  • the wrapper has an opening with a configuration defined by the adjacent area on one side of the absorbent compress.
  • a relatively thick porous layer of a material which is very soft, comfortable, and liquid-pervious covers the opening.
  • the wrapper may be made from a woven or non-woven material and may also be treated to prevent liquid penetration.
  • the compress may also be treated to prevent excessive piling during use.
  • the present invention relates to a sanitary napkin and more especially a new embodiment for a disposable sanitary napkin of the kind comprising an absorbent, elongated compress or pad encompassed in a wrapper having extensions in both ends adapted to be attached to a wearers belt or the like.
  • the compress comprises an absorbent core, consisting of for instance cellulose or cellulose wad, which core is wrapped into and supported by a liquid pervious wrapper or a net. Subsequent to one use only such sanitary napkins are discarded or thrown away.
  • an absorbent core consisting of for instance cellulose or cellulose wad, which core is wrapped into and supported by a liquid pervious wrapper or a net. Subsequent to one use only such sanitary napkins are discarded or thrown away.
  • non-woven napkins there exist two general types of such disposable sanitary napkins.
  • One type is usually called non-woven napkins, because the wrapper consists of a non-woven material, i.e. a paper-like non-elastic material made from cellulose treated in different manners in order to make it suitably liquid pervious and also providing it with a soft and skin comfortable surface.
  • non-woven sanitary napkins The main disadvantage of non-woven sanitary napkins is that the wrapper material, in spite of treatment, will not attain a so soft and skin comfortable surface as is desirable.
  • the other general type of disposable sanitary napkins is the so-called napkins with net, i.e. napkins .'wherein the absorbent compress core is encompassed in a per example knitted coarse meshed net.
  • the absorbent core is frequently surrounded by a thin layer of cotton or cottonlike material.
  • the main advantage with this type of napkin compared with the before mentioned non-woven napkin is that due to its outstanding soft surface it will offer excellent wearing comfort.
  • Sanitary napkins with net possess, however, the disadvantage that they during the wearing will be substantially deformed in a manner such that they attain an elongated deformed shape due to the great elasticity of the supporting net.
  • Such a film has, however,- not proved to be any ideal solution, among other reasons because the napkin, in spite of having suitable markings, for instance coloured marks or the like, very easily is positioned in the wrong direction i.e. outside in, having as a result that the sanitary napkin is not absorbing any liquid at all.
  • the main objective of the invention is to provide an improved sanitary napkin, which supplementary to possessing the main advantage of the napkins as above described, also possesses fuIther advantages without being hampered by their drawbacks.
  • a disposable sanitary napkin comprising an oblong, padlike absorbent compress positioned in an elongated wrapper constituting an integral part of the napkin, said wrapper being made from a relatively non-elastic material and provided with extensions at both ends which shall be secured to a belt by the wearer, the wrapper on one side being provided with an opening, the boundary and configuration of which is defined by the adjacent face area of one side of the absorbent compress.
  • missin-g wrapper material over the opening area is replaced by a layer of particularly soft, skin comfortable and liquid pervious material, per example cotton or cottonlike material, on top of which is placed a coarse meshed net in order to prevent piling during use.
  • the net as well as said layer of skin comfortable material can be attached to the wrapper along the underside of the opening edge and thus form an integral part of the wrapper.
  • the soft and skin comfortable material can also be provided with a top layer of the core proper or simply by the exposed surface of the core, provided the core is made from material which is suitable.
  • the invention is generally characterized in that the wrapper has an opening which exposes a liquid pervious surface which is softer and more skin comfortable than the wrapper material itself.
  • FIGURE 1 is a perspective view showing a sanitary napkin in accordance with the invention.
  • FIGURE 2 is a side view of the napkin shown in FIG- URE 1, the right half of the napkin being removed along the center line of the napkin.
  • FIGURE 3 is a cross-sectional view of the napkin as shown on the line 11-11 in FIGURE 2.
  • FIGURE 4 is a cross-sectional view similar to FIG- URE 3 of a modification of a sanitary napkin in accordance with the invention.
  • FIGURE 5 is a cross-sectional view similar to FIGURE 3 of a further embodiment of a sanitary napkin in accordance with the invention.
  • FIGURE 6 is a cross-sectional view similar to those shown in FIGURES 35 and showing another realization of the invention, whereby the core itself is exposed over the opening area in the wrapper.
  • FIGURE 7 is a crosssectional view similar to FIG- URE 6 of a further embodiment of the invention.
  • the sanitary napkin 1 consists of a wrapper 2 which suitably is tubeshaped, which wrapper envelops a compress or core.
  • the end portions 4 and 6 of the wrapper are preferably folded together as shown, in order to keep the core of the napkin in position, and also to facilitate the attachment to a wearers belt which is not shown.
  • the napkin is made in the form of an elongated or oblong, relatively flat pad.
  • the wrapper is in accordance with the invention provided with an opening having a continuous opening edge 10 extending around this side of the napkin.
  • the core of the napkin comprises a preferably profiled liquid absorbent compress or pad. 8 of cellulose, cotton, or similar material, and on top of the core across the wrapper opening is as shown in the embodiments shown in FIGURES 25 positioned a separate or distinct liquid pervious layer 12 of an especially soft and skin comfortable material, for instance cotton or a cotton-like material. On top of this cotton or cotton-like material is suit ably positioned a thin coarse meshed net 13 in order to prevent or reduce surface piling.
  • the layer 12 and the net 13 are suitably attached to the wrapper on the underside of the opening margin 10, for instance by means of an adherent.
  • a thin layer 14 for instance made from cellulose wad, the purpose of which is to strengthen the napkin, but chiefly to provide that the liquid, which is passing through the outer layer 12, is distributed also laterally across the layer 14 before penetrating into the absorbent core 8.
  • the opening margin 10 should, with regard to a correct adjusting against the wearers body and in order to make the opening area as large as possible, be arranged along the transition zone 15 between the top face of the napkin and side face along the sides of the napkin having a somewhat oval shaped cross-section as shown, such that the core, which here is covered by the soft outer layer 12, protrudes somewhat longer outwards or higher than the wrapper opening edge 10 itself. It would, thus be no objection to locate the opening edge 10 somewhat lower than shown in the figures, for instance with the opening edge running along level 17, as shown in FIGURE 3 and at each end following a well rounded semicircular course 19 across the napkin as shown in FIGURE 1.
  • the important feature is that the side edges or lateral walls of the wrapper extend upwardly along and surround the side faces of the core so that the wrapper constitutes a bowl shaped container for the core. As shown the end portions of the wrapper have closed pockets 23.
  • the wrapper is preferably made from a liquid repellent material or a material which is treated with a liquid repellent.
  • FIGURE 4 One can, however, as shown in FIGURE 4, alternatively locate a separate liquid impermeable sheet of film or foil 16, for instance a thin plastic sheet or a plastic laminated cellulose wad, between the core and the Wrapper, so that said layer surrounds the core from the closed side of the wrapper. This layer is then of course ,given such size and shape that it extends upwardly along the side edges of the core.
  • a separate liquid impermeable sheet of film or foil 16 for instance a thin plastic sheet or a plastic laminated cellulose wad
  • FIGURE shows a cross-sectional view similar to FIGURE 3 of a further embodiment of a sanitary napkin in accordance with the invention and wherein the layer 12 is supposed to be treated with a composition preventing piling, whereby a net as shown in FIGURES 1 and 2 can be cancelled.
  • FIGURES 6 and 7 illustrate further realizations of sanitary napkins in accordance with the invention and which distinguish themselves from those shown in FIG- URES 3 to 5 in that the layer of soft and skin comfortable material does not constitute a distinct separate part or a part of the wrapper, but instead constitutes a part of the core.
  • the layer of soft and skin comfortable material does not constitute a distinct separate part or a part of the wrapper, but instead constitutes a part of the core.
  • the layer of soft and skin comfortable material in the core is of such quality that it further to being soft and skin comfortable also has the quality that it does not pile during use.
  • the face and the upper layer 24 of the material in the core can be treated with a suitable constituent such that the binding of the material is increased without substantially reducing its liquid perviousness or the skin comfort.
  • the core can be made having several layers, the outer layer 22 being of a particularly soft and skin comfortable material.
  • FIGURE 7 a napkin having a core of one single type of material and in the center zone of which is positioned a liquid distributing and core strengthening layer 25.
  • the core material is here presupposed to be of non-piling type.
  • the upper side of same should preferably be attached to the underside of the opening margins of the wrapper, for instance by means of gluing or welding, such that the opening edge is not incidentally folded outwardly during use, causing discomfort for the wearer.
  • a sanitary napkin in accordance with the invention can be given many different embodiments without leaving the spirit of the invention, namely to provide a wrapper which serves as Well as a supporting element for the core as a moisture and liquid receiving pocket for moisture and liquid which penetrates into the core, the outside of which is exposed to the liquid in that the wrapper is provided with an opening, the exposed surface consisting of a particularly soft and skin comfortable material.
  • Disposable, irreversible, sanitary napkin consisting of an elongated wrapper forming an integral part of said napkin, an oblong, pad-like absorbent compress positioned in said wrapper, said wrapper being made from a relatively nonelastic material having extensions at both ends to be secured to the belt of a user, said wrapper having on one side an opening whose boundary and configuration is defined by the adjacent face area on one side of said absorbent compress, and a relatively thick porous layer of skin comfortable, very soft, and liquid previous material covering said wrapper opening.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
US542814A 1965-10-04 1966-04-15 Sanitary napkin Expired - Lifetime US3424163A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO15994865 1965-10-04
NO16204966 1966-03-10

Publications (1)

Publication Number Publication Date
US3424163A true US3424163A (en) 1969-01-28

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US542814A Expired - Lifetime US3424163A (en) 1965-10-04 1966-04-15 Sanitary napkin

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JP (1) JPS5012235B1 (enrdf_load_stackoverflow)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012295A1 (de) * 1978-12-09 1980-06-25 Henkel Kommanditgesellschaft auf Aktien Hygienevorlage
US4714466A (en) * 1985-01-25 1987-12-22 Kao Corporation Absorbent member for tampon
US4886508A (en) * 1988-07-11 1989-12-12 Washington Douglas L Ladies external catheter assembly
US20190224036A1 (en) * 2014-03-19 2019-07-25 Purewick Corporation Apparatus and methods for receiving discharged urine
US10682124B2 (en) 2016-02-18 2020-06-16 Ur24 Technology, Llc Automated collection and analysis of body fluids
US10690655B2 (en) 2016-02-18 2020-06-23 Ur24 Technology, Llc Automated urine collector-analyzer
US20210236323A1 (en) * 2018-05-01 2021-08-05 Purewick Corporation Fluid collection devices, systems, and methods
US11246573B2 (en) 2016-02-18 2022-02-15 Ur24Technology, Inc. Automated collection and analysis of body fluids
US11311405B2 (en) 2020-05-22 2022-04-26 Ur24Technology, Inc. Methods and apparatus for collecting body fluids
US20220133524A1 (en) * 2020-11-03 2022-05-05 Purewick Corporation Apparatus for receiving discharged urine
US20220265462A1 (en) * 2020-04-10 2022-08-25 Purewick Corporation Fluid collection assemblies including one or more leak prevention features
USD969308S1 (en) 2020-05-28 2022-11-08 Ur24Technology, Inc. Fluid collection apparatus
EP3463180B1 (en) 2016-06-02 2023-03-29 Purewick Corporation Apparatus and methods for receiving discharged urine
US20230145365A1 (en) * 2020-04-17 2023-05-11 Purewick Coporation Fluid collection assemblies including a fluid impermeable barrier having a sump and a base
US20230210685A1 (en) * 2020-04-17 2023-07-06 Purewick Corporation Fluid collection devices, systems, and methods securing a protruding portion in position for use
US20230218426A1 (en) * 2020-04-20 2023-07-13 Purewick Corporation Fluid collection devices adjustable between a vacuum-based orientation and a gravity-based orientation, and related systems and methods
US20230255813A1 (en) * 2014-03-19 2023-08-17 Purewick Corporation Apparatus and methods for receiving discharged urine
US11801186B2 (en) 2020-09-10 2023-10-31 Purewick Corporation Urine storage container handle and lid accessories
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US11925575B2 (en) 2021-02-26 2024-03-12 Purewick Corporation Fluid collection devices having a sump between a tube opening and a barrier, and related systems and methods
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