초록 ▼

An improved pump is provided for controlled delivery of fluids wherein the pump includes a reservoir and a movable piston. A plunger slide is in removable contact with the movable piston. A motor, is operably coupled to a drive member, such as a drive screw. The motor is disposed in-line with the dr

An improved pump is provided for controlled delivery of fluids wherein the pump includes a reservoir and a movable piston. A plunger slide is in removable contact with the movable piston. A motor, is operably coupled to a drive member, such as a drive screw. The motor is disposed in-line with the drive member and the plunger slide. The drive member is operably connected to the plunger slide and is disposed to be substantially enclosed by the plunger slide when the plunger slide is in at least one position. The drive member is adapted to advance the plunger slide in response to operation of the motor.

대표청구항 ▼

[ What is claimed is:] [1.]1. A portable medical device for dispensing liquid from a liquid reservoir having a piston which defines an axis of travel, the medical device comprising:a drive motor having a rotating drive shaft which defines an axis of rotation, said drive shaft axis of rotation being

[ What is claimed is:] [1.]1. A portable medical device for dispensing liquid from a liquid reservoir having a piston which defines an axis of travel, the medical device comprising:a drive motor having a rotating drive shaft which defines an axis of rotation, said drive shaft axis of rotation being coaxially aligned with the piston axis of travel;a gearbox coupled to the drive motor drive shaft;at least one plunger slider coupled to the gearbox and adapted to translate from a retracted position to an extended position to displace the piston along the piston axis of travel in response to rotation of the drive motor drive shaft wherein the at least one plunger slider substantially radially surrounds at least a portion of a length of the gearbox when the at least one plunger slider is in the retracted position; anda releasable coupler adapted to releasably couple the at least one plunger slider to the piston.