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Vacuum pump

A technology of vacuum pumps and vacuum membranes, applied in pumps, oil suction pumps, pumps with flexible working elements, etc., can solve problems that are not common

Active Publication Date: 2014-06-18
MEDELA HLDG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In breast pumps, the measurement of the negative pressure generated has not been common until now

Method used

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  • Vacuum pump
  • Vacuum pump
  • Vacuum pump

Examples

Experimental program
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Effect test

Embodiment Construction

[0038] exist figure 1 A first embodiment of a vacuum pump according to the invention in the form of a breast pump for expressing human breast milk is described in . The vacuum pump has a vacuum pump housing 1 and an electric motor 10 . The brassiere unit 5 comprises a brassiere 51 with a brassiere funnel 52 which can be placed sealingly on the mother's breast, and a first duct 50 . The first line 50 is detachably connectable to the housing 1 of the vacuum pump via a first coupling part 53 . The milk collection unit 4 has a milk collection container 44 with a connecting sleeve 43 and a second line 41 . This second line 41 is provided with a second coupling part 40 via which the second line can be detachably connected to the housing 1 of the vacuum pump. At the opposite end of the second line 41 there is a third coupling part 42 which can be inserted into the connecting sleeve 43 or can be snapped back onto it.

[0039] as in figure 2 As can be seen in , the cover 13 is fa...

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Abstract

The invention relates to a vacuum pump for generating a negative pressure, comprising a pump chamber (14, 15) having an inlet (143) and an outlet (150), wherein the outlet (150) is fitted with a valve (3). According to the invention the pump chamber (14, 15) is provided with a pressure sensor (23, 23', 24). Said vacuum pump has a relatively accurate and inexpensive vacuum sensor. It is additionally advantageous that the sensor, being integrated in the pump chamber, is largely unsusceptible to interference and requires little space.

Description

technical field [0001] The invention relates to a vacuum pump according to the preamble of claim 1 . Background technique [0002] A vacuum pump is used to generate negative pressure. Vacuum pumps can be used, for example, as breast pumps for expressing breast milk and as drainage pumps, in particular in the field of chest drainage or wound drainage. Membrane vacuum pumps can be designed relatively small and cost-effective. [0003] WO 2011 / 035447 discloses a motor-driven breast pump for expressing breast milk through a vacuum membrane which is simultaneously used to generate or transfer a vacuum for media separation between air and milk and as a milk transport device. The vacuum membrane is driven either directly via a motor and a mechanical force transmission, or is connected via a vacuum line to a vacuum-generating pump device. [0004] WO 2008 / 057218 likewise discloses a vacuum membrane for a breast pump. This vacuum membrane is connected to the pump device via pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/00A61M1/06
CPCF04B43/0081A61M2205/3331A61M1/0066A61M1/0072A61M2205/3306A61M1/06A61M1/82A61M1/80A61M1/00
Inventor 阿明·费尔伯
Owner MEDELA HLDG AG