Patent ID: 9358375
Filing Date: 2016-06-07
CPC Classification: A61M

Claim Text:
1. A fluid transfer device comprising: a first layer having a first face and a second face and a first chamber located in the first layer, the first chamber extending into the first layer from the second face thereof, a skin abutting layer having a first face for abutting skin of a subject and a second face located adjacent the first face of the first layer, a communicating means in the skin abutting layer for accommodating a fluid from the first chamber to the subject, a first membrane located between the first face of the first layer and the second face of the skin abutting layer for isolating the communicating means from the first chamber, a second membrane located adjacent the second face of the first layer for closing the first chamber adjacent the second face of the first layer, a pressure altering means co-operable with the second membrane for urging the second membrane into the first chamber to increase the pressure in the first chamber for urging the fluid from the first chamber to the subject through the communicating means, a puncturing means located in the skin abutting layer to be engageable with the first membrane for bursting thereof in response to the second membrane being urged into the first chamber for increasing the pressure in the first chamber, and a barrier means which is permeable to the fluid in the first chamber located in the first chamber for preventing engagement of the second membrane with the puncturing means.