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WO2004014462A1 - Tire-lait manuel a element d'aspiration offrant une efficacite operationnelle constante avec le temps - Google Patents

Tire-lait manuel a element d'aspiration offrant une efficacite operationnelle constante avec le temps Download PDF

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Publication number
WO2004014462A1
WO2004014462A1 PCT/EP2003/005914 EP0305914W WO2004014462A1 WO 2004014462 A1 WO2004014462 A1 WO 2004014462A1 EP 0305914 W EP0305914 W EP 0305914W WO 2004014462 A1 WO2004014462 A1 WO 2004014462A1
Authority
WO
WIPO (PCT)
Prior art keywords
breast
pump
cylinder
piston
discoidal
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.)
Ceased
Application number
PCT/EP2003/005914
Other languages
English (en)
Inventor
Pietro Catelli
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.)
Artsana SpA
Original Assignee
Artsana 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 Artsana SpA filed Critical Artsana SpA
Priority to AU2003236699A priority Critical patent/AU2003236699A1/en
Publication of WO2004014462A1 publication Critical patent/WO2004014462A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/06—Milking pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A61M1/81—Piston pumps, e.g. syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/07—General characteristics of the apparatus having air pumping means
    • A61M2205/071—General characteristics of the apparatus having air pumping means hand operated
    • A61M2205/073—Syringe, piston type

Definitions

  • the present invention relates to a manual breast-pump in accordance with the introduction to the main claim.
  • Manual breast-pumps have been known for some time. They generally comprise a body presenting a bell-shaped part to be coupled to a woman's breast from which the milk is to be extracted; with this body there is associated a manually operated pump which in known solutions takes the most disparate forms.
  • the said operating element is for example in the form of a lever hinged to the body of the breast-pump or to a part of the pumping member, and the suction member comprises a piston and a cylinder.
  • the piston is usually associated with the operating element, whereas the cylinder is provided within the body of the breast-pump or within the body of the pumping member associated with this latter.
  • Pumping members are known in which the piston, during its movement, travels through a curved trajectory within the cylinder.
  • This solution enables manual breast-pumps to be obtained which are more simple to use, but often requires the piston to be in the form of a member physically separated from the operating member and loosely connected to this latter in a manner free to move relative to said operating member about the region in which it is connected thereto. The reason for this is to enable the piston to properly travel through its trajectory within the cylinder which is of curved axis.
  • a further drawback is that any connection between the body of the suction member and the body of the breast-pump can give rise to further points of loss of the vacuum which is created within the cylinder by the movement of the piston therein.
  • a further and final drawback is the large number of components of the breast- pump, this number resulting in a high cost of the finished product because of the time required for its assembly.
  • breast-pumps are also known in which the suction member comprises a fixed piston on which the cylinder moves. Examples of this breast-pump are readable in DE836560 and in US4892517.
  • DE836560 relates to a breast-pump in which the suction member comprises a first hollow tubular element connected to a bell-shaped part and on which there moves a second tubular element closed at one end; the movement of this second element, acting as a cylinder in which the first tubular element acting as the piston is contained, creates the suction on the milk which is collected directly in said second element, which can hence act as a feeding bottle.
  • US4892517 comprises a breast-pump having a manifold member provided with three apertures connected respectively to a bell-shaped part, to a bottle and to a first tubular element acting as the piston of the suction member. On this latter there moves a second tubular element acting as the cylinder for the suction member and which when moving on the first member creates the suction on the milk which passes from the bell-shaped part into the manifold member and then by gravity into the bottle.
  • the shape of the tubular body defining the fixed piston is essential in order to secure to the breast-pump the tubular body defining the movable cylinder and to enable the suction member to operate effectively.
  • the movable cylinder is secured to the breast-pump only by being mounted on the fixed piston.
  • the movable cylinder also acts as the milk collection bottle and hence, to enable a sufficiently large quantity of liquid to be collected, it must necessarily have appreciable longitudinal dimensions. This results in a further increase in the dimensions of the breast-pump.
  • the breast- pump of this previous German patent is not easy to use precisely because the cylinder also acts as the milk collection bottle and, when in use, it fills with liquid (making the breast-pump heavy).
  • An object of the present invention is to provide a breast-pump which is improved compared with known breast-pumps.
  • a particular object of the invention is to provide a breast-pump which has constant operability with time, and in which the vacuum created by the pumping member is always such as to enable the milk to be correctly drawn from the woman's breast.
  • Another object is to provide a breast-pump of the stated type which has only a small number of components, hence enabling the production cost and time to be reduced.
  • a further object is to provide a breast-pump the assembly of which is such as to avoid losses between the suction member and the bell-shaped part of the breast-pump body.
  • FIG. 1 is a transparent side view of a breast-pump according to the invention applied to a bottle;
  • Figure 2 is a cross-section through the breast-pump of Figure 1 ;
  • Figures from 3 to 5 are side views showing the breast-pump with bottle at different stages of use;
  • Figure 6 is a perspective exploded view of a different embodiment of the invention.
  • Figure 7 is a side view of the breast-pump of Figure 6;
  • Figure 8 is a longitudinal section through the breast-pump of Figure 7;
  • Figure 9 is a longitudinal section through a part of the breast-pump of Figure 7, but from the opposite side to that of the view of Figure 8.
  • a breast-pump according to the invention is indicated overall by 1. It comprises a body 2 provided with a bell-shaped part 3 to be coupled to a woman's breast from which milk is to be extracted.
  • a yieldable element 3K for example of silicone
  • This element presents a free edge able to fold about an edge 3D of the bell-shaped part 3.
  • the body 2 is provided with an internally threaded cap-shaped part 5 to cooperate with a threaded end 6 of a bottle 7 for collecting the milk.
  • the cap- shaped part overlies the end 6.
  • the bell-shaped part 3 is internally hollow at 3A and communicates with a conduit 10 provided within a cylindrical element projecting into the interior of the cap-shaped part 5 from a flat part 12 of this latter to which the bell-shaped part 3 is fixed.
  • the cylindrical element 11 presents a second conduit 16 communicating with a tubular element 17, internally hollow at 18, having a free end part 19 which is arched (or inclined or bent, or otherwise forming an angle to the remaining part of the element 17, as in Figures 6-9).
  • This part 19 supports a substantially discoidal cylindrical piece 20.
  • a channel 21 is present connected to the cavity 18 and opening into that free surface 22 of the discoidal piece 20 opposite the surface 23 with which the tubular element 17 is rigid.
  • This latter can be integral with the discoidal piece 20, in which case the tubular element is a part separated from the cylindrical element 11 and fixed to this latter in any known manner, for example by bonding, for example ultrasonic, or by gluing.
  • the tubular element 17 can be integral with the cylindrical element 11 (and hence with the body 2 of the breast-pump), in which case the discoidal piece 20 is physically separate from the element 17 and is made rigid with this latter in any known manner (for example by bonding).
  • the discoidal piece 20 and the tubular element 17 are in one piece and integral with the breast-pump body 2, as shown in Figures 8 and 9.
  • the discoidal piece 20 carries, at least in correspondence with its lateral surface 27, a seal element 28 positioned in a seat 27A and arranged to seal against the wall 29 of a cavity associated with a lever member 30.
  • the discoidal piece 20 and the element 17 (in particular its end part 19) hence define a piston 31 fixed with respect to a cylinder 32 defined within a portion 34 of the lever member.
  • the cylinder 32 is hence movable relative to the fixed piston 32; this cylinder has in effect a useful volume 32A variable between zero with the lever member 30 in its rest position ( Figures 3 and 8), to a maximum volume with the lever member 30 in its position of maximum excursion ( Figure 5).
  • useful volume means that volume able to contain the air drawn from the bell-shaped part 3 through the cavity 18 of the tubular element 17, this drawing action enabling vacuum to be created in the part 32 and milk to be extracted from the breast.
  • the portion 34 is to a large extent hollow; its cavity 34A, defining the cylinder 32, presents an end aperture 37 facing the bell-shaped part 3.
  • the piston 31 passes through this aperture on assembling the breast-pump mounting the lever member 30 on the breast-pump body 2.
  • the cavity 34A terminates with a base 38, internal to said portion 34, on which the discoidal piece 20 rests when the breast-pump is in its rest position ( Figures 3 and 8).
  • a conduit 40 on which there operates a known vacuum regulator member 41 able to regulate the "force" of the vacuum within the cylinder 32.
  • This member comprises, in known manner, a knob 41 A, an adjustment pin 41 B and a holding rod 41 C.
  • annular element 43 can be disposed within the cavity 34A along its wail ( Figure 2) by being projectingly inserted into a corresponding seat provided in said wall 42.
  • This element 43 defines a limit stop for the movement of the discoidal piece 20 within the cylinder 32 and hence defines the maximum stroke of the piston 31.
  • the "useful volume" of the cylinder 32 (indicated by 32A in Figure 5) is variable on the basis of the position of the discoidal piece 20 within the cavity 34A relative to its base 38.
  • the lever member 30 comprises a preferably arch-shaped handgrip 48 projecting from its portion 34 and positioned on one side of the bottle 7.
  • the handgrip 48 is concave towards this bottle in the embodiment of Figures 1- 5, and on its inner wall 50 there rests one end 51 of a leaf spring 52 (or another equivalent elastic element); its other end 53 is inserted into a seat 54 provided in the body 2 of the breast-pump.
  • the spring 52 defines a member for returning the lever member 30 into its rest position of Figure 3.
  • the lever member 30 defines an operating element for the suction member or pump defined by the piston 31 and cylinder 32.
  • the lever member 30 comprises a seat 71 for the end 72 of a leaf spring 73 arranged to rest on the bottle 7 and hence to elastically oppose the movement of the lever approaching this latter when the cylinder 32 is moved on the fixed piston 31.
  • the end 72 comprises parallel fins 74 resting on a step 76 on the inside of the seat 71. In correspondence with these fins there project elements 77 arranged to penetrate into seats 78 in lugs 58 projecting substantially from a lower part (with reference to the figures) of the portion 34 of the lever member 30.
  • These lugs present through holes 79 to receive pins 80 jutting in opposing directions from a support 81 projecting from the cap-shaped part 5.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pediatric Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

Cette invention porte sur un tire-lait (1) manuel comprenant un corps (2) conçu pour être associé à une bouteille (7) servant à recueillir le lait, lequel corps (2) comporte une partie en forme de cloche (3) conçue pour coopérer avec un sein d'une femme ainsi qu'un élément d'aspiration ou une pompe comportant un piston (31) introduit dans un cylindre (32), le cylindre (32) et le piston (31) étant mobiles l'un par rapport à l'autre, un élément d'actionnement (30) pour ledit élément d'aspiration, lequel élément d'actionnement est mobile par rapport au corps (2) du tire-lait, ledit piston (31) étant fixe et ledit cylindre (32) étant mobile, ledit piston comprenant un élément discoïdal relativement mobile à l'intérieur du cylindre.
PCT/EP2003/005914 2002-08-02 2003-06-05 Tire-lait manuel a element d'aspiration offrant une efficacite operationnelle constante avec le temps Ceased WO2004014462A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003236699A AU2003236699A1 (en) 2002-08-02 2003-06-05 Manual breast-pump with suction member providing constant operability with time

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2002A001765 2002-08-02
IT001765A ITMI20021765A1 (it) 2002-08-02 2002-08-02 Tiralatte manuale con organo aspirante di funzionalita' costante nel tempo

Publications (1)

Publication Number Publication Date
WO2004014462A1 true WO2004014462A1 (fr) 2004-02-19

Family

ID=31503939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/005914 Ceased WO2004014462A1 (fr) 2002-08-02 2003-06-05 Tire-lait manuel a element d'aspiration offrant une efficacite operationnelle constante avec le temps

Country Status (4)

Country Link
AU (1) AU2003236699A1 (fr)
IT (1) ITMI20021765A1 (fr)
TW (1) TW200403084A (fr)
WO (1) WO2004014462A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1532992A4 (fr) * 2002-08-29 2008-07-02 Pigeon Corp Dispositif manuel d'extraction de lait
CN108478403A (zh) * 2018-02-02 2018-09-04 李阅 一种妇产科产妇防止积奶设备
WO2021050025A1 (fr) * 2019-09-09 2021-03-18 Can Nazife Appareil de soutien de l'allaitement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836560C (de) * 1948-10-14 1952-04-15 Dr Med Georg Schaefer Milchpumpe
US4583970A (en) * 1984-05-25 1986-04-22 Kirchner & Wilhelm Milk suction device
US4813932A (en) * 1984-09-11 1989-03-21 Hobbs Michael A Single-handed breast pump
US4892517A (en) * 1988-04-11 1990-01-09 Spalding & Evenflo Companies, Inc. Breast pump
US5843029A (en) * 1995-10-16 1998-12-01 Gerber/Baby Care Manual breast pump
WO2001034226A1 (fr) * 1999-11-11 2001-05-17 Kaweco Gmbh Pompe d'aspiration pour le lait

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836560C (de) * 1948-10-14 1952-04-15 Dr Med Georg Schaefer Milchpumpe
US4583970A (en) * 1984-05-25 1986-04-22 Kirchner & Wilhelm Milk suction device
US4813932A (en) * 1984-09-11 1989-03-21 Hobbs Michael A Single-handed breast pump
US4892517A (en) * 1988-04-11 1990-01-09 Spalding & Evenflo Companies, Inc. Breast pump
US5843029A (en) * 1995-10-16 1998-12-01 Gerber/Baby Care Manual breast pump
WO2001034226A1 (fr) * 1999-11-11 2001-05-17 Kaweco Gmbh Pompe d'aspiration pour le lait

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1532992A4 (fr) * 2002-08-29 2008-07-02 Pigeon Corp Dispositif manuel d'extraction de lait
CN108478403A (zh) * 2018-02-02 2018-09-04 李阅 一种妇产科产妇防止积奶设备
CN108478403B (zh) * 2018-02-02 2020-05-15 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） 一种妇产科产妇防止积奶设备
WO2021050025A1 (fr) * 2019-09-09 2021-03-18 Can Nazife Appareil de soutien de l'allaitement

Also Published As

Publication number Publication date
TW200403084A (en) 2004-03-01
ITMI20021765A1 (it) 2004-02-03
AU2003236699A1 (en) 2004-02-25

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