Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C15/00—Devices for cleaning between the teeth
  • A61C15/02—Toothpicks
• • 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
  • A46B3/005—Bristle carriers and bristles moulded as a unit
• • 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
  • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
• • 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
  • A46B9/026—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups where the surface of the brush body or carrier is not in one plane, e.g. not flat
• • 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
  • A46B9/04—Arranged like in or for toothbrushes
  • A46B9/045—Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
  • A46D1/02—Bristles details
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B2200/00—Brushes characterized by their functions, uses or applications
  • A46B2200/10—For human or animal care
  • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
  • A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
  • A46D1/02—Bristles details
  • A46D1/0238—Bristles with non-round cross-section

Definitions

• the invention relates to an interdental cleaner with a rod-shaped carrier made of a 1. plastic, which has a grip part in its rear end area and a coating made of a soft-elastic 2. plastic in its opposite front end area, with the outside of the Coating several radially protruding Fin are arranged ger, which are integrally connected in their foot area with the coating.
• Cleaners made of plastic which have a rod-shaped carrier made of a 1st plastic, which has a usually plate-shaped, integrally formed handle part at its rear end.
• a sleeve-shaped cover made of a soft-elastic second plastic, for example a thermoplastic elastomer or silicone is sprayed on.
• the cover has fingers on its outside that protrude radially or at least with a radial component and are made of the same material as the
• Coating exist and are integrally formed and connected with this.
• the fingers must be sufficiently stable to be able to tal-Rutz not to tear off or kink.
• the fingers must be able to be easily deformed in order to be able to penetrate into very narrow gaps or between teeth and to clean them.
• the invention is based on the object of creating an interdental cleaner of the type mentioned, in which the fingers have an improved cleaning effect.
• an interdental cleaner having the features of claim 1 .
• the basic idea is to allow the slenderness of the fingers of the interdental cleaner to deviate from one another in different defined areas.
• the cover has a tip area SB with a length in the range from 0.5 mm to 2.0 mm preferably in the range of 1.0mm to 1.5mm.
• the tip area SB preferably has a length of 1.5 mm. This tip area SB is disregarded in the following consideration of the slenderness of the fingers, since in the tip area SB some interdental cleaners have fingers of a different geometric configuration and in particular stub fingers.
• the cover also has a functional area FB, which adjoins the tip area SB in the direction of the handle part and extends to a rear finger closest to the handle part.
• the functional area FB is divided into the front area VB, which is directly adjacent to the tip area SB and has a length in the range from 1.0 mm to 2.5 mm and in particular in the range from 1.5 mm to 2.0 mm rear finger forwardly extending rear portion HB having a length in the range of 1.0 mm to 2.5 mm and more preferably in the range of 1.5 mm to 2.0 mm and a between the front portion VB and the rear portion HB arranged central area MB divided.
• the front area VB and the rear area HB are preferably considered and compared with one another.
• the front area VB and/or the rear area HB preferably have a length of 2.0 mm.
• the coating and the fingers are in a common seed injection molding step in an injection mold Herge provides and have a radially outward, ie the tip of the fingers tapering shape in particular in the form of egg Nes circular cone to the fingers after injection process to demould in a simple manner. In order to avoid injuries to the gums of the user, the fingers are usually rounded off at their radially outer end.
• the fingers each have the shape of a circular cone, but cones with other cross-sectional shapes are also possible, for example an elliptical cone, a rectangular or square cone (pyramid) or a polygon or n-cornered cone.
• a circular cone is assumed as an example, but the invention is not restricted to this.
• the cross-section of the finger that is decisive for determining the maximum diameter d is the cross-section that is just completely inside the finger, i.e. does not protrude into the coating. If the longitudinal central axis L of the finger extends perpendicularly to the surface of the coating, as shown in FIG. 3, the relevant cross-section for determining the diameter d is the cross-section of the finger facing the surface of the coating.
• the axial length 1 of the finger then results from the distance of the relevant cross-section to the radially outer end of the finger.
• the relevant cross-section for the maximum diameter d is that cross-section which lies entirely within the finger (see FIG. 4).
• the axial length 1 of the finger then results from the distance of the relevant cross-section to the tip of the finger.
• the relevant cross-section for determining the maximum diameter d is the lower cross-section of the pure conical shape of the finger facing the coating, i.e. the rounded transition cross-section is disregarded, as is shown in 5 is shown.
• the axial length 1 of the finger results from the distance from the relevant cross-section to the radially outer tip of the finger.
• the relevant cross-section of the finger in the foot area also has the shape of a circle and the diameter d results from the diameter of the circle at any point (see FIG. 6a).
• the relevant diameter d is the diameter on the longer major axis of the ellipse (see Fig. 6b).
• the relevant diameter d results from the maximum distance between two opposite corner points (see FIG. 6c).
• the invention is based on the basic idea of providing one or more fingers in the front area VB that are less slender (front slenderness S v ) than one or more fingers in the rear area HB (rear slenderness S H ) . It is basically provided that in the front area VB at least one of the fingers or at least 50% of all fingers there or at least 80% of all fingers there or even all fingers there have a front slenderness S v of at least 3.0.
• the rear area HB that in the rear area HB at least one of the fingers or at least 50% of all fingers there or at least 80% of all fingers there or even all fingers there has a rear slimness SH of at least 3.0 exhibit.
• the difference in the slenderness of the fingers between the front area VB and the rear area HB is that the front slenderness S v of at least one of the fingers arranged in the front area VB of the cover, or the front slenderness S v of at least 50% of all fingers there or the front slenderness S v at least 80% of all fingers there or the front slenderness S v of all fingers there less than the rear slenderness S H of at least one of the fingers arranged in the rear area HB of the cover or as the rear slenderness SH is at least 50% of all fingers there or as the rear slenderness SH is at least 80% of all fingers there or as the rear slenderness SH of all fingers there.
• the front slenderness S v is 3% to 15% and more preferably 5% to 10% less than the rear slenderness S H .
• the front slenderness S v is in the range from 3.0 to 5.0 and in particular in the range from 3.5 to 4.7.
• the rear slenderness S H can be in the range from 3.5 to 5.5 and in particular in the range from 3.9 to 5.1.
• the maximum diameter in the foot area of those fingers that are arranged in the front area VB of the cover is 5% to 15% less than the maximum diameter d H in the foot area of those fingers that are in the rear region HB of the coating are arranged.
• the axial length l v of those fingers that are arranged in the front area VB of the cover is 5% to 15% less than the axial length 1 H of those fingers that are in the rear Area HB of the coating are arranged.
• the interdental cleaner can also have fingers of a different shape and/or slimness.
• Fig. 1 is a perspective view of an interdental cleaner
• Fig. 2 likes a schematic longitudinal section through the front area of the interdental cleaner with the coating and the fingers,
• Fig. 6a, 6b, 6c possible cross-sectional shapes of a fin gers.
• An interdental cleaner 10 shown in Fig. 1 has a rod-shaped carrier 11 made of a dimensionally stable 1. plastic, which has a one-piece molded, plate-shaped handle part 12 on its rear end, which is on the right according to Fig. 1, on which a user can grasp the interdental cleaner 10.
• the carrier 11 In its opposite front end area, the carrier 11 carries a sleeve-shaped cover 13 made of a soft, elastic second plastic material, for example a thermoplastic elastomer or silicone.
• a sleeve-shaped cover 13 made of a soft, elastic second plastic material, for example a thermoplastic elastomer or silicone.
• a plurality of radially outwardly projecting fingers 14 are integrally formed, which consist of the same material as the coating 13 and are monolithically connected to it.
• the fingers 14 have the shape of a cone, preferably a circular cone radially outwardly tapering cross-section and are rounded at their radially outer end.
• Figure 2 shows a schematic longitudinal section through the front portion of the support 11, the cover 13 and the fingers 14.
• the cover 13 is divided into a front tip portion SB having a length in the range of 0.5mm to 2.0mm and preferably in the range of 1.0 mm to 1.5 mm and a functional area FB, which adjoins the tip area SB in the direction of the handle part 12 and extends to a rear fin 14.1 closest to the handle part 14.
• the functional area FB is divided into a front area VB directly adjoining the tip area SB with a length in the range of 1.0 mm to 2.5 mm and in particular in the range of 1.5 mm to 2.0 mm, one different from the rear one Finger 14.1 rear area HB extending forward with a length in the range of 1.0 mm to 2.5 mm and in particular in the range of 1.5 mm to 2.0 mm and between the front area VB and the rear area HB arranged middle area MB under divides.
• the cross section of the finger 14 that is decisive for determining the maximum diameter d is that cross section that is just completely inside the finger 14 , ie does not protrude into the coating 13 . If the longitudinal central axis L of the finger 14 extends perpendicularly to the surface of the coating 13, as shown in FIG Cross section of the finger 14. The axial length 1 of the finger 14 then results from the distance of the relevant cross section to the radially outer end of the finger 14.
• the cross-section relevant to the maximum diameter d is that cross-section lying entirely within the finger 14 (see FIG. 4).
• the axial length 1 of the finger 14 then results from the distance between the relevant cross section and the tip of the finger 14.
• the relevant cross-section for determining the maximum diameter d is the lower cross-section facing the cover 13 of the pure conical shape of the finger 14, i.e. the rounded transition cross-section is disregarded as illustrated in FIG.
• the axial length 1 of the finger 14 results from the distance between the relevant cross section and the radially outer tip of the finger 14.
• the relevant cross-section of the finger 14 at the root is in the shape of a circle and the diameter d is the diameter of the circle anywhere, as shown in Figure 6a.
• the relevant diameter d is the diameter on the longitudinal Geren major axis of the ellipse, as shown in Fig. 6b.
• the relevant diameter d results from the maximum distance between two opposite corner points, as shown in Fig.
• the invention is based on the basic idea of providing one or more fingers 14 in the front area VB, which are less slender (front slenderness S v ) than one or more fingers 14, 14.1 in the rear area HB (rear slenderness S H ) . exhibit.
• the rear area HB that in the rear area HB at least one of the fingers 14 or at least 50% of all fingers 14 there or at least 80% of all fingers 14 there or even all fingers 14 there have a rear slenderness SH of at least 3 ,0.
• the difference in the slenderness of the fingers 14 between the front region VB and the rear region HB is that the front slenderness S v of at least one of the fingers 14 located in the front region VB of the cover 13, or the front slenderness S v at least 50% of all fingers 14 there or the front slenderness Sv at least 80% of all fingers 14 there or the front slenderness S v of all fingers 14 there is less than the rear slenderness S H of at least one of the fingers 14 that are arranged in the rear area HB of the cover 13, or than the rear slenderness S H at least 50% of all fingers 14 there or as the rear slenderness S H at least 80% of all fingers 14 there or as the rear slenderness S H of all fingers 14 there.
• the front slenderness S v is 3% to 15% and more preferably 5% to 10% less than the rear slenderness S H .
• the front slenderness S v is in the range from 3.0 to 5.0 and in particular in the range from 3.5 to 4.7.
• the rear slenderness S H can be in the range from 3.5 to 5.5 and in particular in the range from 3.9 to 5.1.

Landscapes

• Health & Medical Sciences (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Epidemiology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Brushes (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=82067407

Family Applications (1)

Country Status (8)

Cited By (3)

Citations (3)

Family Cites Families (3)

• 2021
  • 2021-05-21 DE DE102021113332.7A patent/DE102021113332A1/de active Pending
• 2022
  • 2022-05-20 ES ES22730745T patent/ES3040392T3/es active Active
  • 2022-05-20 EP EP22730745.1A patent/EP4294318B1/de active Active
  • 2022-05-20 US US18/552,485 patent/US20250090288A9/en active Pending
  • 2022-05-20 WO PCT/EP2022/063704 patent/WO2022243505A1/de not_active Ceased
  • 2022-05-20 CA CA3215625A patent/CA3215625A1/en active Pending
  • 2022-05-20 JP JP2023569832A patent/JP2024519763A/ja active Pending
  • 2022-05-20 CN CN202280031687.8A patent/CN117279593A/zh active Pending

Patent Citations (3)

Also Published As

Similar Documents

Legal Events