US20080077082A1 - Method for yielding maximum expression in breastpumping - Google Patents

Method for yielding maximum expression in breastpumping Download PDF

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Publication number
US20080077082A1
US20080077082A1 US11/903,378 US90337807A US2008077082A1 US 20080077082 A1 US20080077082 A1 US 20080077082A1 US 90337807 A US90337807 A US 90337807A US 2008077082 A1 US2008077082 A1 US 2008077082A1
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US
United States
Prior art keywords
breastpump
vacuum
mmhg
range
operating
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.)
Abandoned
Application number
US11/903,378
Inventor
Donna Geddes
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.)
Medela Holding AG
Original Assignee
Medela Holding AG
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 Medela Holding AG filed Critical Medela Holding AG
Priority to US11/903,378 priority Critical patent/US20080077082A1/en
Assigned to MEDELA HOLDING AG reassignment MEDELA HOLDING AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GEDDES, DONNA T.
Publication of US20080077082A1 publication Critical patent/US20080077082A1/en
Abandoned legal-status Critical Current

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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
    • A61M1/06—Milking pumps
    • A61M1/069—Means for improving milking yield
    • 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
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/75—Intermittent or pulsating suction

Definitions

  • This invention relates to breastpumps for drawing breastmilk, and particularly to a breastpump with a pressure control system to regulate the pressure as actually applied to the breast within a breast shield chamber during a pumping cycle, and also to vary that pressure in a cycle that maintains a minimum vacuum with an optimum frequency yielding maximum expression.
  • breastpumps for use by nursing mothers are well known. They allow the nursing woman to express the breastmilk as necessary or convenient, and further provide collection of the breastmilk for later use. For some mothers, breastpumps may be a necessity, such as when the child has suckling problems, or if the mother has problems nursing.
  • breastpumps There are three general broad classifications of breastpumps: hand pumps that generate suction manually, battery operated pumps with small motors that generate suction from power supplied by batteries, and electric pumps in which suction is created by various types of electric motors that run off “house” current. Some pumps can cross over these broad classifications.
  • a battery-driven portable breastpump is described in U.S. Pat. No. 4,964,851, for example.
  • This breastpump is small, lightweight and achieves good vacuum (i.e., negative pressure) regulation in preferred limits.
  • the LACTINA breastpump sold by Medela, Inc. is also another type of breastpump, which may be driven by battery as well as house current. It is generally disclosed in U.S. Pat. No. 5,007,899.
  • All of these breastpumps are designed to cycle pressure, typically a negative pressure or vacuum, that is applied to the breast and nipple within the breast shield.
  • the prior art does not regulate vacuum at the breast shield to reach a maximum negative pressure, and then a desired minimum negative pressure still less than ambient, without the need to return to atmospheric pressure for successful milk expression. Yet a return to ambient pressure within the breast shield chamber may not be required, and benefits may be achieved by maintaining a minimum level of vacuum on the breast throughout at least a portion of the pumping session. Such would include, for example, reducing the amount of energy required to thereafter reach maximum vacuum. The “elastic rebound” of the nipple upon release of vacuum would also be minimized. This provides comfort to the nursing mother. A breakthrough in providing a baseline vacuum for breastpumping is described in U.S. patent application Ser. No. 11/786,364, filed on Apr. 11, 2007.
  • a breastpump providing a pumping cycle that maintains a minimum level of vacuum (otherwise referred to as a baseline vacuum) within a breast shield chamber throughout at least some, if not all, of a pumping session is disclosed in pending U.S. patent application Ser. No. 11/786,364 filed on Apr. 11, 2007, which is incorporated herein by reference.
  • a minimum baseline vacuum used herein would be in the range of about ⁇ 20 mmHg to about ⁇ 60 mmHg.
  • a further beneficial effect is considered to be accomplished through the use of some kind of oscillation or vibration of the nipple, again in conjunction with the nipple restraint.
  • This could be a mechanical element run off of the electrical source (used to power the vacuum source), which essentially rapidly “thumps” or drums the exterior of the collar or nipple tunnel.
  • Such a mechanical element could be a motor with an eccentric, such as done in cell phones.
  • It could also be an air vibration (acoustical) superimposed on the air within the breastpump assembly.
  • Such an acoustical means could be generated by small oscillations of the vacuum mechanism.

Abstract

A method of yielding maximum expression in a breastpump provides a pumping cycle that maintains a minimum level of vacuum within a breast shield chamber (baseline vacuum) throughout at least some, if not all, of a pumping session, while operating the breastpump in a milk expression mode with a sequence having a frequency in the range of about 80 to about 100 cycles per minute.

Description

    APPLICATION HISTORY
  • Applicant claims the benefit of prior pending U.S. Provisional Application Ser. No. 60/846,689 filed on Sep. 22, 2006, entitled “Infant Sucking and the Effect of Respiration and Swallowing: Shapes, Patterns and Vacuum in Depth Including Frequency, Vacuum and Breast Expression.”
    • FIELD OF THE INVENTION
  • This invention relates to breastpumps for drawing breastmilk, and particularly to a breastpump with a pressure control system to regulate the pressure as actually applied to the breast within a breast shield chamber during a pumping cycle, and also to vary that pressure in a cycle that maintains a minimum vacuum with an optimum frequency yielding maximum expression.
    • BACKGROUND OF THE INVENTION
  • Breastpumps for use by nursing mothers are well known. They allow the nursing woman to express the breastmilk as necessary or convenient, and further provide collection of the breastmilk for later use. For some mothers, breastpumps may be a necessity, such as when the child has suckling problems, or if the mother has problems nursing.
  • There are three general broad classifications of breastpumps: hand pumps that generate suction manually, battery operated pumps with small motors that generate suction from power supplied by batteries, and electric pumps in which suction is created by various types of electric motors that run off “house” current. Some pumps can cross over these broad classifications.
  • Various types of hand pumps exist. An example of such manually-driven pumps is in U.S. Pat. No. 6,497,677.
  • A battery-driven portable breastpump is described in U.S. Pat. No. 4,964,851, for example. This breastpump is small, lightweight and achieves good vacuum (i.e., negative pressure) regulation in preferred limits. The LACTINA breastpump sold by Medela, Inc. is also another type of breastpump, which may be driven by battery as well as house current. It is generally disclosed in U.S. Pat. No. 5,007,899.
  • All of these breastpumps are designed to cycle pressure, typically a negative pressure or vacuum, that is applied to the breast and nipple within the breast shield.
  • The prior art does not regulate vacuum at the breast shield to reach a maximum negative pressure, and then a desired minimum negative pressure still less than ambient, without the need to return to atmospheric pressure for successful milk expression. Yet a return to ambient pressure within the breast shield chamber may not be required, and benefits may be achieved by maintaining a minimum level of vacuum on the breast throughout at least a portion of the pumping session. Such would include, for example, reducing the amount of energy required to thereafter reach maximum vacuum. The “elastic rebound” of the nipple upon release of vacuum would also be minimized. This provides comfort to the nursing mother. A breakthrough in providing a baseline vacuum for breastpumping is described in U.S. patent application Ser. No. 11/786,364, filed on Apr. 11, 2007.
    • SUMMARY OF THE INVENTION
  • It is a principal objective of the present invention to provide a method of yielding maximum milk expression in a breastpump, either manual or motorized, that maintains a minimum level of vacuum within a breast shield chamber throughout at least some, if not all, of a pumping session, while operating the breastpump at frequencies in a range of about 80 to about 100 cycles per minute.
    • DETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION
  • A breastpump providing a pumping cycle that maintains a minimum level of vacuum (otherwise referred to as a baseline vacuum) within a breast shield chamber throughout at least some, if not all, of a pumping session is disclosed in pending U.S. patent application Ser. No. 11/786,364 filed on Apr. 11, 2007, which is incorporated herein by reference. A minimum baseline vacuum used herein would be in the range of about −20 mmHg to about −60 mmHg.
  • With such a pump having a baseline vacuum, it has been found that maximum expression of milk is achieved while operating at frequencies in the range of about 80 to about 100 cycles per minute, and particularly in the range of 81 to 99 cycles per minute. The peak or maximum negative pressure used during the milk expression session was conventional, i.e., in the upper range of about −150 mmHg to about −250 mmHg. A peak pressure of about −200 mmHg was most preferred. The resulting excellent expression of milk was not expected, and it is believed that the identification of this frequency range was hitherto unknown to yield such improved milk expression results.
  • A further beneficial effect is considered to be accomplished through the use of some kind of oscillation or vibration of the nipple, again in conjunction with the nipple restraint. This could be a mechanical element run off of the electrical source (used to power the vacuum source), which essentially rapidly “thumps” or drums the exterior of the collar or nipple tunnel. Such a mechanical element could be a motor with an eccentric, such as done in cell phones. It could also be an air vibration (acoustical) superimposed on the air within the breastpump assembly. Such an acoustical means could be generated by small oscillations of the vacuum mechanism.
  • Thus, while the invention has been described herein with relation to a certain embodiment and application, those with skill in this art will recognize changes, modifications, alterations and the like which still come within the spirit of the inventive concept, and such are intended to be included within the scope of the invention as expressed in the following claims.

Claims (4)

1. An improved method for operating a breastpump for the expression of mother's milk, wherein the improvement comprises operating a breastpump assembly during at least some of a pumping session and with a baseline vacuum, while using an expression sequence having a conventional maximum negative pressure at a frequency in the range of about 80 to about 100 cycles per minute, to thereby achieve maximum expression.
2. The improved method for operating a breastpump of claim 1 wherein said range is 81 to 99 cycles per minute.
3. The improved method for operating a breastpump of claim 1 wherein the minimum vacuum level is within a range of about −20 mmHg to about −60 mmHg, and said conventional maximum negative pressure is in the range of about −150 mmHg to about −250 mmHg.
4. The improved method for operating a breastpump of claim 3 wherein said maximum negative pressure is about −200 mmHg.
US11/903,378 2006-09-22 2007-09-21 Method for yielding maximum expression in breastpumping Abandoned US20080077082A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/903,378 US20080077082A1 (en) 2006-09-22 2007-09-21 Method for yielding maximum expression in breastpumping

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84668906P 2006-09-22 2006-09-22
US11/903,378 US20080077082A1 (en) 2006-09-22 2007-09-21 Method for yielding maximum expression in breastpumping

Publications (1)

Publication Number Publication Date
US20080077082A1 true US20080077082A1 (en) 2008-03-27

Family

ID=39200095

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/903,103 Active 2031-09-17 US9162016B2 (en) 2006-09-22 2007-09-20 Breastpump with irregular milk expression sequences
US11/903,378 Abandoned US20080077082A1 (en) 2006-09-22 2007-09-21 Method for yielding maximum expression in breastpumping

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US11/903,103 Active 2031-09-17 US9162016B2 (en) 2006-09-22 2007-09-20 Breastpump with irregular milk expression sequences

Country Status (8)

Country Link
US (2) US9162016B2 (en)
EP (1) EP2063928A4 (en)
JP (1) JP5204110B2 (en)
CN (1) CN101516415B (en)
AU (1) AU2007299595B2 (en)
MX (1) MX2009003010A (en)
RU (1) RU2445981C2 (en)
WO (2) WO2008034193A1 (en)

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US7972297B2 (en) 2008-11-07 2011-07-05 Simplisse, Inc. Breast cup assembly for a breast pump

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US8070715B2 (en) * 2007-04-11 2011-12-06 Medela Holding Ag Method and apparatus for minimum negative pressure control, particularly for breastpump with breastshield pressure control system
US9050404B2 (en) 2009-02-20 2015-06-09 Medela Holding Ag Process for use with breastpump to initiate milk in breastfeeding, particularly for premature infants
WO2013166462A1 (en) * 2012-05-03 2013-11-07 Genadyne Bioltechnologies Breast pump and system or program for pumping breasts
WO2014044472A1 (en) * 2012-09-24 2014-03-27 Koninklijke Philips N.V. Actuator control in a breast pump system
WO2016014488A1 (en) 2014-07-22 2016-01-28 Exploramed Nc7, Llc Breast pump system and methods
CA2955605C (en) 2014-07-22 2023-01-03 John Y. Chang Breast pump system and methods
CN107182202B (en) 2014-07-22 2020-12-22 威洛创新股份有限公司 Breast pump system and method
US11660380B2 (en) 2014-07-22 2023-05-30 Willow Innovations, Inc. Breast pump system with collection container
WO2016014483A1 (en) 2014-07-22 2016-01-28 Exploramed Nc7, Llc Breast pump system and methods
EP3180049B1 (en) 2014-08-11 2019-06-26 ExploraMed NC7, Inc. Synchronizing breast pumping with infant feeding
ES2749102T3 (en) 2014-09-16 2020-03-19 Exploramed Nc7 Inc System to evaluate the volume of milk expressed from a breast
SG11201806734VA (en) 2016-02-10 2018-09-27 Exploramed Nc7 Inc Breast pump container assemblies and methods
KR102522999B1 (en) 2016-02-10 2023-04-17 윌로우 이노베이션즈, 인크. Expressing assembly and method
JP6640282B2 (en) * 2018-06-08 2020-02-05 ピジョン株式会社 Electric breast pump, control method of electric breast pump, and control program of electric breast pump
JP6640281B2 (en) * 2018-06-08 2020-02-05 ピジョン株式会社 Electric breast pump, control method of electric breast pump, and control program of electric breast pump

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7972297B2 (en) 2008-11-07 2011-07-05 Simplisse, Inc. Breast cup assembly for a breast pump
US8109901B2 (en) 2008-11-07 2012-02-07 Simplisse, Inc. Breast pump
US8323235B2 (en) 2008-11-07 2012-12-04 Handi-Craft Company Liner for use with a breast pump

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AU2007299595B2 (en) 2013-02-14
CN101516415B (en) 2011-11-30
US20080097290A1 (en) 2008-04-24
RU2009114325A (en) 2010-10-27
JP2010504114A (en) 2010-02-12
EP2063928A1 (en) 2009-06-03
WO2008034192A1 (en) 2008-03-27
EP2063928A4 (en) 2012-08-01
WO2008034193A1 (en) 2008-03-27
US9162016B2 (en) 2015-10-20
RU2445981C2 (en) 2012-03-27
MX2009003010A (en) 2009-04-02
AU2007299595A1 (en) 2008-03-27
JP5204110B2 (en) 2013-06-05

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