Patent ID: 9320851
Filing Date: 2016-04-26
CPC Classification: A61M

Claim Text:
1. An arrangement for administering a predetermined amount of a substance into an organism, the arrangement comprising: a member adapted to provide information indicative of a tissue resistance against flow of a fluid containing the substance upon administration into the tissue; a controller adapted to adjust an administration characteristic of the fluid based on the information such as to achieve an intended absorption rate of the substance; a pump adapted to be coupled to a reservoir of the fluid and adapted to drive the fluid; a conduit, in particular comprising a flexible tubing, for guiding the fluid drive by the PUMP from the reservoir into the tissue, the conduit having one end, a cannula, inserterable into the tissue and having another end coupled to the pump unit; wherein the controller is adapted to control the pump to adjust the flow rate of the fluid to comply with the adjusted administration characteristic; wherein the member comprises a pressure sensor and is adapted to measure a pressure of the fluid in the conduit; wherein the arrangement is adapted, using the pressure sensor, to determine a pressure difference based on a first pressure measurement, when the cannula is inserted into the tissue; and a second pressure measurement, when the cannula is external to the tissue at atmospheric pressure.