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US 10,589,029 B2Granted
Adjustable needle-free injector
OwnerSoheila Salahshoor Kordestaniinventor
Life of this patent
Estimating the term…
Abstract
An adjustable needleless injection system for subcutaneous injection of a liquid medication to a patient is disclosed. The adjustable needleless injection system may include: a medication cartridge that holds the liquid medication, where the medication cartridge includes a cartridge piston, a spring-actuated injector that may be coupled with the medication cartridge and configured to selectively apply force to the cartridge piston, and a charging mechanism configured to charge the spring-actuated injector based on a body type of the patient.
Claims9
An adjustable needleless injection system for subcutaneous injection of a liquid medication to a patient, comprising:
- a medication cartridge configured to hold the liquid medication, the medication cartridge including a cartridge piston;
- a spring-actuated injector coupled with the medication cartridge and configured to selectively apply injection force to the cartridge piston, the spring-actuated injector including:
- a spring-loaded injector piston with ratchets formed in a symmetrical arrangement along a portion of the injector piston, the injector piston including an injector spring positioned to apply the injection force to the injector piston;
- a spring-loaded trigger engaged with the ratchets on the injector piston to hold the injector piston in place against the injection force applied by the injector spring, the trigger configured to selectively release the injector piston responsive to the trigger being pushed down, the injector piston configured to release to move responsive to the injection force applied by the injector spring, the injector piston configured to apply the injection force to the cartridge piston to force the liquid medication out of the medication cartridge;
- and
- a charging mechanism configured to charge the spring-actuated injector by applying a charging force to the injector piston to move the injector piston against the injection force of the injector spring by a predetermined distance, the charging mechanism including:
- a linear actuator configured to engage the injector piston, the linear actuator applying the charging force to the injector piston to move the injector piston against the injection force of the injector spring by the predetermined distance;
- a user interface unit configured to receive a body type from a user;
- a processor coupled with the charging mechanism;
- and
- a memory coupled to the user interface unit and the controller, the memory storing executable instructions to cause the processor to:
- receive the body type from the user interface unit;
- correlate the received body type with a required injection force;
- calculate the predetermined distance based on the required injection force;
- and
- cause the linear actuator to move the injector piston against the injection force of the injector spring by the predetermined distance.
13 more elements
An adjustable needleless injection system for subcutaneous injection of a liquid medication to a patient, comprising:
- a medication cartridge configured to hold the liquid medication, the medication cartridge including a cartridge piston;
- a spring-actuated injector coupled with the medication cartridge and configured to selectively apply injection force to the cartridge piston, the spring-actuated injector including:
- a spring-loaded injector piston with ratchets formed in a symmetrical arrangement along a portion of the injector piston, the injector piston including an injector spring positioned to apply the injection force to the injector piston;
- a spring-loaded trigger engaged with the ratchets on the injector piston to hold the injector piston in place against the injection force applied by the injector spring, the trigger configured to selectively release the injector piston responsive to the trigger being pushed down, the injector piston configured to release to move responsive to the injection force applied by the injector spring,
- the injector piston configured to apply the injection force to the cartridge piston to force the liquid medication out of the medication cartridge;
- and
- a charging mechanism configured to charge the spring-actuated injector by applying a charging force to the injector piston to move the injector piston against the injection force of the injector spring by a predetermined distance.
4 more elements
Dependencies are inferred from the claim text.