EP0928577A1 - Brosse, notamment à usage médical ou pharmaceutique - Google Patents

Brosse, notamment à usage médical ou pharmaceutique Download PDF

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Publication number
EP0928577A1
EP0928577A1 EP99100418A EP99100418A EP0928577A1 EP 0928577 A1 EP0928577 A1 EP 0928577A1 EP 99100418 A EP99100418 A EP 99100418A EP 99100418 A EP99100418 A EP 99100418A EP 0928577 A1 EP0928577 A1 EP 0928577A1
Authority
EP
European Patent Office
Prior art keywords
brush
filament yarns
bristles
medical
mounting support
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.)
Withdrawn
Application number
EP99100418A
Other languages
German (de)
English (en)
Inventor
Eligio Ponzini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ponzini SpA
Original Assignee
Ponzini SpA
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 Ponzini SpA filed Critical Ponzini SpA
Publication of EP0928577A1 publication Critical patent/EP0928577A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires

Definitions

  • the present invention relates to a brush for medical and pharmaceutical use.
  • it relates to an improved brush which can be used in all those applications - for example for pap test (Papanicolaou's test) samples in the health sector - where softness is a fundamental requirement.
  • the brushes manufactured hitherto consist of “bristles” formed by monofilaments of synthetic material which are mounted, in a substantially radial arrangement, on a shank made of plastic or metallic material.
  • bristles is used in a conventional manner to indicate not only bristles of animal origin, but any other natural or synthetic strand-like element, both in the form of monofilaments of the known art and in the form of the filament yarns according to the invention.
  • Italian Patent No. 1147406 describes a brush for medical use, in particular for use in the oral cavity, in which the metal shank is coated with an insulating and soft plastic material so as not to create galvanic currents in contact with the dental prostheses and so as not to damage the gums.
  • European Patent Application EP-A-0250680 discloses a brush for cosmetic use in which the bristles have a cross-sectional shape particularly suitable for retaining the cosmetic products to be applied.
  • the brush bristles with a greater degree of softness by using suitable materials and/or reducing the thickness of the monofilaments and/or distributing the latter in particular geometrical arrangements.
  • the impossibility of obtaining diameters of less than 0,05 mm does not allow to obtain the desired softness, in particular when the length of the bristles is fairly short, since the bristles inevitably retain a certain rigidity.
  • the object of the present invention is that of solving the abovementioned problems by providing a brush with a high degree of softness also when it has a small overall diameter.
  • a brush intended in particular for medical or pharmaceutical use, but certainly applicable also in the cosmetics sector, of the general type described above, comprising a plurality of bristles which are mounted on a mounting support consisting of a double spirally twisted wire and having the characteristic features indicated in Claim 1.
  • a brush 1 is comprised of a support formed by a pair of interwoven semi-rigid wires - preferably metal wires lined with plastic material - one part of which performs the simple function of a gripping shank 2, while another part performs the function of a mounting support 3 on which a plurality of bristles 4 are mounted.
  • the present invention teaches to use bristles 4 which have cross-sectional dimensions which are noticeably smaller than those of the bristles used hitherto by the known art; for this purpose the bristles 4 consist of filament yarns, for example formed by natural textile fibres, such as cotton fibres, or preferably fibres obtained from polymeric material extruded and stretched until fibres with dimensions of the order of magnitude of the polymeric chains are obtained.
  • the filament yarns according to the invention therefore have dimensions which are noticeably smaller than 0,05 mm (2 mils) and preferably less than 0,01 mm.
  • polyamide filament yarns they preferably have a count of the order of 0,6 to 0,7 tex (the unit of measurement of 1 tex corresponds to a yarn having a weight of 1 g per 1000 m of length), which means a size about a tenth of that of a polyamide monofilament having a diameter of 0,05 mm.
  • filament yarns made of polyester or polyamide, for example PA6.6 and PA6, extruded at temperatures of between 200°C and 270°C, preferably between 215°C and 262°C, and greatly stretched, so as to cause orientation of the molecules, in a nitrogen atmosphere are particularly advantageous.
  • these filament yarns are very difficult to handle, at least from the point of view of mounting on the mounting support 3.
  • the monofilaments were cut from monofilament bars of reasonable length (about 1 m), without this creating any particular problems, this operation is no longer possible for filament yarns, which would not have enough consistence to be gripped and cut.
  • the wire of the mounting support 3 may be made of stainless steel or metal coated with suitable plastic materials such as, for example, polyurethane. In this way it is possible to achieve the desired degree of hygiene for the brush as a whole.
  • the brush according to the invention has a softness of the brush plume which is without comparison, even in critical conditions, i.e. for overall diameters D which are slightly greater than the diameter d of the mounting support 3, while still being able to perform the right mechanical action during frictional contact, so as to remove or distribute effectively the desired substances, without damaging the contact surfaces.
  • Said brush is therefore excellently suited especially for all those cases mentioned in the introduction, where the frictional contact occurs in the vicinity of delicate organs and tissues of the human body.
  • the shapes of the brush may be many and also very different from that described, without thereby departing from the protective scope of the present invention, as defined by the following claims.
  • the medical and pharmaceutical fields have been indicated as the preferred fields of use for the brush according to the invention, it is also certainly possible to contemplate its use in the cosmetics sector.

Landscapes

  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Brushes (AREA)
EP99100418A 1998-01-12 1999-01-11 Brosse, notamment à usage médical ou pharmaceutique Withdrawn EP0928577A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980010U 1998-01-12
ITMI980010 IT243714Y1 (it) 1998-01-12 1998-01-12 Scovolino in particolare per uso medico e farmaceutico

Publications (1)

Publication Number Publication Date
EP0928577A1 true EP0928577A1 (fr) 1999-07-14

Family

ID=11378503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100418A Withdrawn EP0928577A1 (fr) 1998-01-12 1999-01-11 Brosse, notamment à usage médical ou pharmaceutique

Country Status (2)

Country Link
EP (1) EP0928577A1 (fr)
IT (1) IT243714Y1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004017792A1 (fr) * 2002-08-21 2004-03-04 Crown Packaging Technology, Inc. Brosse a mascara a ame metallique
US11206918B2 (en) * 2018-03-25 2021-12-28 Parallel Capture Holdings Inc. Interdental brush with nylon yarn strands

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250680A1 (fr) 1986-06-16 1988-01-07 Henlopen Manufacturing Co., Inc. Brosse à cils
FR2663826A1 (fr) * 1990-06-29 1992-01-03 Oreal Brosse pour appliquer du mascara sur les cils, et procede de fabrication d'une telle brosse.
EP0486329A1 (fr) * 1990-11-13 1992-05-20 L'oreal Brosse pour l'application d'un produit cosmétique, en particulier sur les cils ou les cheveux, et procédé d'obtention d'une telle brosse
FR2685859A1 (fr) 1992-01-08 1993-07-09 Oreal Brosse a faible empoilage pour l'application de mascara sur les cils.
EP0717944A1 (fr) 1994-12-24 1996-06-26 Estee Lauder Inc. Brosse à mascara
DE29618479U1 (de) * 1996-10-23 1996-12-05 Georg Karl Geka-Brush Gmbh, 91572 Bechhofen Mascara-Bürstchen
US5611361A (en) 1995-06-14 1997-03-18 Revlon Consumer Products Corporation Mascara application system
US5657778A (en) 1993-06-23 1997-08-19 L'oreal Brush for applying a make-up product, particularly mascara

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250680A1 (fr) 1986-06-16 1988-01-07 Henlopen Manufacturing Co., Inc. Brosse à cils
FR2663826A1 (fr) * 1990-06-29 1992-01-03 Oreal Brosse pour appliquer du mascara sur les cils, et procede de fabrication d'une telle brosse.
EP0486329A1 (fr) * 1990-11-13 1992-05-20 L'oreal Brosse pour l'application d'un produit cosmétique, en particulier sur les cils ou les cheveux, et procédé d'obtention d'une telle brosse
FR2685859A1 (fr) 1992-01-08 1993-07-09 Oreal Brosse a faible empoilage pour l'application de mascara sur les cils.
US5657778A (en) 1993-06-23 1997-08-19 L'oreal Brush for applying a make-up product, particularly mascara
EP0717944A1 (fr) 1994-12-24 1996-06-26 Estee Lauder Inc. Brosse à mascara
US5611361A (en) 1995-06-14 1997-03-18 Revlon Consumer Products Corporation Mascara application system
DE29618479U1 (de) * 1996-10-23 1996-12-05 Georg Karl Geka-Brush Gmbh, 91572 Bechhofen Mascara-Bürstchen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004017792A1 (fr) * 2002-08-21 2004-03-04 Crown Packaging Technology, Inc. Brosse a mascara a ame metallique
US11206918B2 (en) * 2018-03-25 2021-12-28 Parallel Capture Holdings Inc. Interdental brush with nylon yarn strands

Also Published As

Publication number Publication date
ITMI980010U1 (it) 1999-07-12
IT243714Y1 (it) 2002-03-06

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