A breast pump according to the present invention includes a variable pressure generating unit, the variable pressure generating unit including a power driving unit including a stepping motor that is capable of rotating both normally and in reverse, and a negative pressure forming unit that creates a negative pressure state periodically by causing an elastic body to deform in accordance with a cycle period formed by the power driving unit, wherein the negative pressure forming unit is coupled to the expressing unit, and the stepping motor is capable of modifying an amplitude of the cycle period and the cycle period during negative pressure formation as desired. Hence, a suction pressure and a pressure increase/decrease cycle can both be set as desired, and moreover, a breast pump that uses electric power can be constructed compactly.

A breast pump according to the present invention includes a variable pressure generating unit, the variable pressure generating unit including a power driving unit including a stepping motor that is capable of rotating both normally and in reverse, and a negative pressure forming unit that creates a negative pressure state periodically by causing an elastic body to deform in accordance with a cycle period formed by the power driving unit, wherein the negative pressure forming unit is coupled to the expressing unit, and the stepping motor is capable of modifying an amplitude of the cycle period and the cycle period during negative pressure formation as desired. Hence, a suction pressure and a pressure increase/decrease cycle can both be set as desired, and moreover, a breast pump that uses electric power can be constructed compactly.

Systems and methods with variable and customized functionality for pumping milk from a breast and calculating or determining volumes pumped, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure.

Systems and methods with variable and customized functionality for pumping milk from a breast and calculating or determining volumes pumped, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure.

In a pump arrangement (6) for use with a double breast pump device, a first air conduit (65) and a second air conduit (66) have a function in connecting respective expression kits (2, 3) to the pump arrangement (6). Each of the air conduits (65, 66) N is connectable to and disconnectable from a suction side and a discharge side, respectively, of a pump (61) that is included in the pump arrangement (6). Further, the air conduits (65, 66) are connectable to and disconnectable from each other directly through an intermediate switching mechanism (70) arranged between the air conduits (65, 66) at a bypass position with respect to the pump (61), so that it is possible to directly transfer vacuum between the air conduits (65, 66) and to thereby support the functioning of the pump (61) which may be relatively small for that reason.

In a pump arrangement (6) for use with a double breast pump device, a first air conduit (65) and a second air conduit (66) have a function in connecting respective expression kits (2, 3) to the pump arrangement (6). Each of the air conduits (65, 66) N is connectable to and disconnectable from a suction side and a discharge side, respectively, of a pump (61) that is included in the pump arrangement (6). Further, the air conduits (65, 66) are connectable to and disconnectable from each other directly through an intermediate switching mechanism (70) arranged between the air conduits (65, 66) at a bypass position with respect to the pump (61), so that it is possible to directly transfer vacuum between the air conduits (65, 66) and to thereby support the functioning of the pump (61) which may be relatively small for that reason.

A breast pump is disclosed. According to an aspect of the present invention, there is provided a breast pump comprising a contact housing comprising a protruding part configured to correspond to a mother's nipple and extend toward the front; a first space-defining member coupled to the protruding part to define a first inner space; a second space-defining member defining a second inner space linked with the first inner space; a storage housing comprising a coupling hole corresponding to the second inner space, the storage housing being coupled with the contact housing; a lid coupled to cover the second inner space through the coupling hole of the storage housing, the lid comprising an air passage; a flow separation membrane configured to divide and separate the second inner space into a first portion and a second portion, the first portion linked with the first inner space, the second portion linked with the air passage; and an attachable pump module on the lid to suck air of the second portion through the air passage, wherein the attachable pump module is integrally coupled with the lid to be attached to and detached from the coupling hole.

A breast pump is disclosed. According to an aspect of the present invention, there is provided a breast pump comprising a contact housing comprising a protruding part configured to correspond to a mother's nipple and extend toward the front; a first space-defining member coupled to the protruding part to define a first inner space; a second space-defining member defining a second inner space linked with the first inner space; a storage housing comprising a coupling hole corresponding to the second inner space, the storage housing being coupled with the contact housing; a lid coupled to cover the second inner space through the coupling hole of the storage housing, the lid comprising an air passage; a flow separation membrane configured to divide and separate the second inner space into a first portion and a second portion, the first portion linked with the first inner space, the second portion linked with the air passage; and an attachable pump module on the lid to suck air of the second portion through the air passage, wherein the attachable pump module is integrally coupled with the lid to be attached to and detached from the coupling hole.

The present invention relates to a motor-driven suction pump and a method for connecting such a pump. The suction pump has a pump unit for generating a negative pressure which is accommodated in a housing. Further, a terminal box is provided which can be connected to a power source via a connecting cable and has contact elements for supplying the pump unit with a power current. The contact elements are electrically conductively connected to the contact counter elements provided on the housing side and leading to the pump unit when the terminal box is coupled to the housing. In order to increase electrical safety, a sensor, an evaluation unit, and a switch are provided. The sensor is configured to check the coupling of the terminal box. The switch switches a power supply to at least one of the contact elements. The evaluation unit is data-based connected to the sensor and the switch such that the switch connects the contact element to the power current supply when a signal of the sensor confirming the coupling is present and disconnects the power current supply when a signal of the sensor confirming the coupling is absent. In the method according to the invention, at least one contact element which is switched off is first electrically connected to the counter contact element on the housing side, which is provided for supplying current to the pump unit. The power current is then applied to the contact element on the basis of a signal confirming the corresponding contacting.

The present invention relates to a motor-driven suction pump and a method for connecting such a pump. The suction pump has a pump unit for generating a negative pressure which is accommodated in a housing. Further, a terminal box is provided which can be connected to a power source via a connecting cable and has contact elements for supplying the pump unit with a power current. The contact elements are electrically conductively connected to the contact counter elements provided on the housing side and leading to the pump unit when the terminal box is coupled to the housing. In order to increase electrical safety, a sensor, an evaluation unit, and a switch are provided. The sensor is configured to check the coupling of the terminal box. The switch switches a power supply to at least one of the contact elements. The evaluation unit is data-based connected to the sensor and the switch such that the switch connects the contact element to the power current supply when a signal of the sensor confirming the coupling is present and disconnects the power current supply when a signal of the sensor confirming the coupling is absent. In the method according to the invention, at least one contact element which is switched off is first electrically connected to the counter contact element on the housing side, which is provided for supplying current to the pump unit. The power current is then applied to the contact element on the basis of a signal confirming the corresponding contacting.