Abstract: An infusion apparatus for delivering medication includes a housing, a drive mechanism, a force sensor, and a transfer element. The drive mechanism comprises first and second conveying elements, the second conveying element for advancing a plug in a reservoir in the distal direction, the first conveying element with limited axial movement relative to the housing but rotatable to cause an ejecting or resetting movement of the second conveying element. The force sensor is arranged along a central axis between the housing and the proximal end of the drive mechanism. The transfer element is axially arranged between the force sensor and the first conveying element and the force sensor bears axial forces exerted by the ejection movement. The second conveying element moves the transfer element away from the first conveying element against the bias of a restoring force such that the force sensor bears axial forces exerted by the resetting movement.

Abstract: An infusion apparatus for delivering medication includes a housing, a drive mechanism, a force sensor, and a transfer element. The drive mechanism comprises first and second conveying elements, the second conveying element for advancing a plug in a reservoir in the distal direction, the first conveying element with limited axial movement relative to the housing but rotatable to cause an ejecting or resetting movement of the second conveying element. The force sensor is arranged along a central axis between the housing and the proximal end of the drive mechanism. The transfer element is axially arranged between the force sensor and the first conveying element and the force sensor bears axial forces exerted by the ejection movement. The second conveying element moves the transfer element away from the first conveying element against the bias of a restoring force such that the force sensor bears axial forces exerted by the resetting movement.

Abstract: An infusion device for infusion of a fluid from a reservoir into a body, the infusion device being connectable to an infusion set adaptor at a connecting site, the infusion device comprising: a drive mechanism to operatively couple with at least a portion of the reservoir; a housing being sized to contain at least a portion of the reservoir, wherein the drive mechanism is at least partially or fully contained within the housing; a sealing device that permits the passage of air into and out of the housing or a housing compartment and inhibits the passage of liquids into the housing or a housing compartment through the sealing device; wherein the sealing device is arranged at the drive mechanism or at a location between a part of the drive mechanism and the connecting site of the infusion set adaptor or at the connecting site of the infusion set adaptor.

Abstract: An infusion device for infusion of a fluid from a reservoir into a body, the infusion device being connectable to an infusion set adaptor at a connecting site, the infusion device comprising: a drive mechanism to operatively couple with at least a portion of the reservoir; a housing being sized to contain at least a portion of the reservoir, wherein the drive mechanism is at least partially or fully contained within the housing; a sealing device that permits the passage of air into and out of the housing or a housing compartment and inhibits the passage of liquids into the housing or a housing compartment through the sealing device; wherein the sealing device is arranged at the drive mechanism or at a location between a part of the drive mechanism and the connecting site of the infusion set adaptor or at the connecting site of the infusion set adaptor.