Back to results
US 2011/0034869 A1Published application
Suction Sequences for a Breastpump
AssigneeMedela, Inc.
InventorsAndy Greter, Michael Larsson
Life of this patent
Estimating the term…
Abstract
A breastpump is provided with one or more novel suction sequences which are considered to produce advantageous particularized results. Such sequences include a suction method for increased milk production and an improved suction method in general.
Claims8
A method for operating a breastpump comprising:
- generating a cyclical pressure change according to the mathematical expression:
- y
-
- (
- x
- )
- =
- V
-
- [
- A
- 10
-
- (
- Tx
- )
- 10
- +
- A
- 9
-
- (
- Tx
- )
- 9
- +
- A
- 8
-
- (
- Tx
- )
- 8
- +
- A
- 7
-
- (
- Tx
- )
- 7
- +
- A
- 6
-
- (
- Tx
- )
- 6
- +
- A
- 5
-
- (
- Tx
- )
- 5
- +
- A
- 4
-
- (
- Tx
- )
- 4
- +
- A
- 3
-
- (
- Tx
- )
- 3
- +
- A
- 2
-
- (
- Tx
- )
- 2
- +
- A
- 1
-
- (
- Tx
- )
- +
- A
- 0
- ]
- ;
- using the values in the following table:
- A10
- A9
- A8
- A7
- A6
- Maximum curve
- 0
- 0
- −516560
- 1787300
- −2473330
- Minimum curve
- 0
- 0
- −516560
- 1787300
- −2473330
- A5
- A4
- A3
- A2
- A1
- Maximum curve
- 1752850
- −680860
- 147200
- −17360
- 370
- Minimum curve
- 1752850
- −680860
- 147200
- −17360
- 370
- A0
- Maximum curve
- 0
- Minimum curve
- 0
- wherein the range of T is from about 0.98 to about 1.5 and the range of V is from about 1.25 to about 0.15, x is time in seconds and y(x) is vacuum in mmHg.
131 more elements
A method for operating a breastpump to stimulate a milk ejection reflex comprising:
- generating a cyclical pressure change according to the mathematical expression:
- y
-
- (
- x
- )
- =
- V
-
- [
- A
- 10
-
- (
- Tx
- )
- 10
- +
- A
- 9
-
- (
- Tx
- )
- 9
- +
- A
- 8
-
- (
- Tx
- )
- 8
- +
- A
- 7
-
- (
- Tx
- )
- 7
- +
- A
- 6
-
- (
- Tx
- )
- 6
- +
- A
- 5
-
- (
- Tx
- )
- 5
- +
- A
- 4
-
- (
- Tx
- )
- 4
- +
- A
- 3
-
- (
- Tx
- )
- 3
- +
- A
- 2
-
- (
- Tx
- )
- 2
- +
- A
- 1
-
- (
- Tx
- )
- +
- A
- 0
- ]
- ;
- using the values in the following table:
- A10
- A9
- A8
- A7
- A6
- Maximum
- 0
- 0
- 15000000
- −34920000
- 32800000
- curve
- Minimum
- 0
- 0
- 15000000
- −34920000
- 32800000
- curve
- A5
- A4
- A3
- A2
- A1
- Maximum
- −16040000
- 4340000
- −616300
- 37000
- −1000
- curve
- Minimum
- −16040000
- 4340000
- −616300
- 37000
- −1000
- curve
- A0
- Maximum
- 8
- curve
- Minimum
- 8
- curve
- wherein the range of T is from about 0.95 to about 1.0 and the range of V is from about 1.3 to about 0.25, x is time in seconds and y(x) is vacuum in mmHg.
137 more elements
A method for operating a breastpump comprising:
- generating a cyclical negative pressure change, said negative pressure change having a duration;
- generating a peak negative pressure at a time about 50 percent along said duration;
- and
- generating a rest segment in said negative pressure change after said time of said peak negative pressure but before completion of a cycle.
1 more element
Dependencies are inferred from the claim text.