EP0397282B1 - Nipple with non-return valve - Google Patents

Nipple with non-return valve Download PDF

Info

Publication number
EP0397282B1
EP0397282B1 EP90201200A EP90201200A EP0397282B1 EP 0397282 B1 EP0397282 B1 EP 0397282B1 EP 90201200 A EP90201200 A EP 90201200A EP 90201200 A EP90201200 A EP 90201200A EP 0397282 B1 EP0397282 B1 EP 0397282B1
Authority
EP
European Patent Office
Prior art keywords
nipple
flange
return valve
dish
conical
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
EP90201200A
Other languages
German (de)
French (fr)
Other versions
EP0397282A1 (en
Inventor
Gerrit Kuper
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.)
Nutricia NV
Original Assignee
Pack O Med Medical Supply Systems BV
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 Pack O Med Medical Supply Systems BV filed Critical Pack O Med Medical Supply Systems BV
Priority to AT90201200T priority Critical patent/ATE99915T1/en
Publication of EP0397282A1 publication Critical patent/EP0397282A1/en
Application granted granted Critical
Publication of EP0397282B1 publication Critical patent/EP0397282B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J11/00—Teats
    • A61J11/02—Teats with means for supplying air

Definitions

  • Nipples for baby feeding are used both in hospital surroundings and in private households, wherein in a hospital it is usually a matter of once-only use while at home the nipples can be boiled.
  • the present invention relates to a nipple comprising:
  • Such a nipple is known from US-A-3 203 569.
  • the non-return valve of this known nipple shows a limited degree of flexibility, which is inherently due to the shape and structure of this non-return valve.
  • the nipple according to the present invention is characterized in that said non-return valve is dish-shaped comprising a flat bottom part provided with a hole and a radially diverging side wall ending in a sealing edge which forms the edge of said dish-shape and which goes over into the flange so as to connect the valve to said flange.
  • nipple prevents an underpressure being built up in a bottle or supply holder for baby food through the sucking of the baby, which makes sucking difficult, while it also prevents baby food being able to leak out of the supply holder in the absence of underpressure; a non-return valve is provided which gives a good sealing against a holder screw to be arranged on the supply holder in addition to a non-return valve which opens at a small underpressure.
  • the nipple is preferably injection moulded from synthetic, non-silicon holding rubber, also referred to as thermoplastic rubber, which has the same properties as rubber but which requires no vulcanizing. Tensile strengths of 1035-34.475 Pa (150-5000 psi) and a Shore A-hardness of 28-95 can be used with this material. A strong nipple is provided herewith, while because of the strength of the material the non-return valve can be embodied with a small thickness of this material. The non-return valve will therefore open easily, while the sealing edge gives good sealing against a holder screw if no under pressure is built up in the holder. It is moreover important that this material is absolutely safe for a baby.
  • a supply holder or bottle 1 can be screwed a holder screw or closing means 2 between which a nipple (fig. 1) can be clamped.
  • a sucking end 4 of the nipple 3 is provided with three conical holes 6.
  • a non-return valve 8 Arranged in a flange or collar 7 which is injection moulded from one piece with the sucking end 4 is a non-return valve 8 which is injection moulded together with the nipple 3. If through the sucking of a baby an underpressure results in the bottle 1 (fig. 2), air can pass between the holder screw edge and the neck of the nipple into a dish 9 since the sealing edge 11 is released through the underpressure. From the dish 9 the underpressure passes into the interior of the bottle 1, whereafter the sealing edge 11 closes and prevents the liquid content leaking out of the bottle along the neck of the nipple.
  • a nipple according to the present invention is preferably injection moulded from a thermoplastic rubber such as commercially available under the names Kraton R and Evoprene R .
  • This material has a high tensile strength with rubber-like properties without vulcanizing having to take place. In addition the material displays good temperature characteristics.

Abstract

Nipple (3), comprising a sucking end (4) that can be provided with one or more holes (6) a flange (7) that forms an entity therewith and extends in radial direction relative to the centre line of the nipple (3), in order to fix the nipple (3) therewith onto a supply holder (1), wherein a dish-shaped non-return valve (8) is arranged in this flange (7).

Description

  • Nipples for baby feeding are used both in hospital surroundings and in private households, wherein in a hospital it is usually a matter of once-only use while at home the nipples can be boiled.
  • The present invention relates to a nipple comprising:
    • a sucking end provided with one or more holes;
    • a flange forming an entity therewith and extending in radial direction relative to the centre line of the nipple, in order to fix the nipple therewith onto a supply holder; and
    • a non-return valve arranged in this flange, for passing air into the supply holder when an underpressure results therein.
  • Such a nipple is known from US-A-3 203 569.
  • The non-return valve of this known nipple shows a limited degree of flexibility, which is inherently due to the shape and structure of this non-return valve.
  • It is an object of the present invention to improve upon this known nipple with non-return valve.
  • The nipple according to the present invention is characterized in that said non-return valve is dish-shaped comprising a flat bottom part provided with a hole and a radially diverging side wall ending in a sealing edge which forms the edge of said dish-shape and which goes over into the flange so as to connect the valve to said flange.
  • Using the nipple according to the present invention prevents an underpressure being built up in a bottle or supply holder for baby food through the sucking of the baby, which makes sucking difficult, while it also prevents baby food being able to leak out of the supply holder in the absence of underpressure; a non-return valve is provided which gives a good sealing against a holder screw to be arranged on the supply holder in addition to a non-return valve which opens at a small underpressure.
  • The nipple is preferably injection moulded from synthetic, non-silicon holding rubber, also referred to as thermoplastic rubber, which has the same properties as rubber but which requires no vulcanizing. Tensile strengths of 1035-34.475 Pa (150-5000 psi) and a Shore A-hardness of 28-95 can be used with this material. A strong nipple is provided herewith, while because of the strength of the material the non-return valve can be embodied with a small thickness of this material. The non-return valve will therefore open easily, while the sealing edge gives good sealing against a holder screw if no under pressure is built up in the holder. It is moreover important that this material is absolutely safe for a baby.
  • Further advantages, features and details are elucidated in the light of the following description with reference to a drawing, in which:
    • fig. 1 shows a perspective view, partly broken away and partly in section, of a preferred embodiment of the nipple according to the present invention;
    • fig. 2 shows a schematic view of the operation of the embodiment of fig. 1.
  • Onto a supply holder or bottle 1 can be screwed a holder screw or closing means 2 between which a nipple (fig. 1) can be clamped. A sucking end 4 of the nipple 3 is provided with three conical holes 6. By moving insert pieces in an injection moulding die (not shown) penetration of cones can be adjusted wherewith the size of the passage opening from the interior of the sucking end 4 to a baby is determined.
  • Arranged in a flange or collar 7 which is injection moulded from one piece with the sucking end 4 is a non-return valve 8 which is injection moulded together with the nipple 3. If through the sucking of a baby an underpressure results in the bottle 1 (fig. 2), air can pass between the holder screw edge and the neck of the nipple into a dish 9 since the sealing edge 11 is released through the underpressure. From the dish 9 the underpressure passes into the interior of the bottle 1, whereafter the sealing edge 11 closes and prevents the liquid content leaking out of the bottle along the neck of the nipple.
  • A nipple according to the present invention is preferably injection moulded from a thermoplastic rubber such as commercially available under the names KratonR and EvopreneR. This material has a high tensile strength with rubber-like properties without vulcanizing having to take place. In addition the material displays good temperature characteristics.

Claims (4)

  1. A nipple (3) comprising:
    - a sucking end (4) provided with one or more holes;
    - a flange (7) forming an entity therewith and extending in radial direction relative to the centre line of the nipple, in order to fix the nipple therewith onto a supply holder (1); and
    - a non-return valve (8) arranged in this flange, for passing air into the supply holder when an underpressure results therein,
    characterized in that said non-return valve (8) is dish-shaped comprising a flat bottom part provided with a hole and a radially diverging side wall ending in a sealing edge (11) which forms the edge of said dish-shape and which goes over into the flange so as to connect the valve to said flange.
  2. A nipple (3) according to claim 1, made from thermoplastic rubber.
  3. A nipple (3) according to claim 1 or 2, wherein said hole is conical, the broad end of which conical wall is remote from the sucking end (4) and wherein the sealing edge (11) of the dish shape is tapered relative to the thickness of the flange (7).
  4. A nipple (3) according to claim 1, 2, or 3, wherein two or more conical holes (6) are provided in said sucking end (4).
EP90201200A 1989-05-12 1990-05-11 Nipple with non-return valve Expired - Lifetime EP0397282B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90201200T ATE99915T1 (en) 1989-05-12 1990-05-11 NON-RETURN VALVE VACUUM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8901204A NL8901204A (en) 1989-05-12 1989-05-12 TEAT WITH CHECK VALVE AND / OR CONICAL SUCTION HOLES.
NL8901204 1989-05-12

Publications (2)

Publication Number Publication Date
EP0397282A1 EP0397282A1 (en) 1990-11-14
EP0397282B1 true EP0397282B1 (en) 1994-01-12

Family

ID=19854646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90201200A Expired - Lifetime EP0397282B1 (en) 1989-05-12 1990-05-11 Nipple with non-return valve

Country Status (5)

Country Link
EP (1) EP0397282B1 (en)
AT (1) ATE99915T1 (en)
DE (1) DE69005893T2 (en)
ES (1) ES2047821T3 (en)
NL (1) NL8901204A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881893A (en) * 1996-12-21 1999-03-16 Playtex Products, Inc. Leakproof nipple valve
WO1998025571A1 (en) * 1996-12-11 1998-06-18 Playtex Products, Inc. Leakproof nipple valve
JP5629082B2 (en) * 2009-10-30 2014-11-19 ピジョン株式会社 Artificial nipple and baby bottle using the same
FR2955766B1 (en) * 2010-02-01 2013-02-15 Cva Silicone BREASTFEEDING BOTTOM WITH ENHANCED AIR INTAKE FUNCTION
GB2490735A (en) 2011-05-13 2012-11-14 Mothercare Uk Ltd An infant feeding bottle with an offset teat arranged with respect to bottle grip portions
FR3035321B1 (en) * 2015-04-24 2021-04-02 Cva Tech Pure Silicone Group Ag BREASTFEEDING DEVICE AND ASSOCIATED BOTTLE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2143719A (en) * 1936-02-20 1939-01-10 Robert W Schulte Nursing nipple
GB739521A (en) * 1954-03-20 1955-11-02 Davol Rubber Co Improvements in feeding bottles
US3203569A (en) * 1964-11-05 1965-08-31 Dunhill International Inc Nipple valve
FR2014370A1 (en) * 1968-06-28 1970-04-17 Shell Int Research
NL7001730A (en) * 1970-02-06 1971-08-10 Babies bottle
BE789769A (en) * 1972-10-06 1973-02-01 Betterfood Nv PROCESS FOR THE MANUFACTURE OF A TEAT FOR BOTTLES AND TEATS MANUFACTURED ACCORDING TO THIS PROCESS.

Also Published As

Publication number Publication date
EP0397282A1 (en) 1990-11-14
ES2047821T3 (en) 1994-03-01
NL8901204A (en) 1990-12-03
ATE99915T1 (en) 1994-01-15
DE69005893T2 (en) 1994-12-08
DE69005893D1 (en) 1994-02-24

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