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US 7,828,771 B2Granted
Systems and methods for delivering drugs
AssigneeEntra Pharmaceuticals, Inc.
InventorsYet-Ming Chiang, Michael J. Cima, J. Richard Gyory, Glenn R. Booma
Life of this patent
Estimating the term…
Abstract
A patch pump device generally includes at least one fluid source, a fluid communicator, and an electrochemical actuator. The fluid communicator is in fluid communication with the fluid source. The electrochemical actuator is operative to cause fluid to be delivered from the fluid source into the fluid communicator.
Claims52
A patch pump device comprising:
- at least one fluid source;
- a fluid communicator in fluid communication with the at least one fluid source;
- an insertion mechanism configured to insert the fluid communicator into the body of a patient, the insertion mechanism including a spring coupled to the fluid communicator, and a latch configured to restrain the spring in a compressed state;
- and
- an electrochemical actuator including an electrode configured to deflect as the electrochemical actuator discharges, the deflection of the electrode being operative to cause fluid to be delivered from the at least one fluid source into the fluid communicator.
2 more elements
A device for delivering fluid to the body of a patient, comprising:
- at least one fluid source;
- a cannula in fluid communication with the at least one fluid source;
- a housing suited for removably associating the fluid source and the cannula with the body of the patient, the housing including a base portion and a movable portion and being movable between an unassembled position and an assembled position by moving the movable portion with reference to the base portion;
- an insertion mechanism, the insertion mechanism operable to cause the cannula to move with respect to the housing and to insert the cannula into the body of the patient;
- and
- an electrochemical actuator operative to cause fluid to be delivered from the at least one fluid source into the cannula.
3 more elements
A device for delivering fluid to the body of a patient, comprising:
- a fluid delivery system including a fluid source, a cannula, and an electrochemical actuator having a bimorph electrode and configured to change volume or position as the bimorph electrode discharges;
- and
- a housing configured for removably associating the fluid delivery system with the body of the patient, the housing being movable between an unassembled configuration in which the fluid delivery system is in a deactivated state, and an assembled configuration in which a first portion forms a cooperative fit with a second portion, the first portion of the housing includes a first electrical contact and the second portion of the housing includes a second electrical contact, the first and second electrical contacts being positioned to contact each other when the housing is in the assembled position to activate the electrochemical actuator thereby delivering fluid from the fluid source through the cannula.
Dependencies are inferred from the claim text.