Multi-cartridge fluid delivery device
View Patent ↗A fluid delivery device for administering a first medicament and a second medicament includes a first fluid reservoir configured to contain the first medicament and a second fluid reservoir configured to contain the second medicament. The fluid delivery device may include one or more basal drive mechanisms to provide a basal delivery of one or more of the first and second medicaments. The fluid delivery device may further include one or more bolus drive mechanisms to provide a bolus delivery of one or more of the first and second medicaments.
1. A fluid delivery device for administering a first medicament and a second medicament, the fluid delivery device comprising:
a housing;
a first fluid reservoir configured to contain the first medicament within the housing;
a second fluid reservoir configured to contain the second medicament within the housing;
a needle having a first end configured to be in fluid communication with the first fluid reservoir and the second fluid reservoir and a second end configured to extend from the housing;
a basal pump chamber having hydraulic fluid and coupled to the first fluid reservoir;
a basal drive mechanism having a hydraulic fluid reservoir, the hydraulic fluid reservoir including hydraulic fluid;
a flow restrictor fluidly coupling the hydraulic fluid reservoir with the basal pump chamber and configured to provide a basal delivery of the first medicament; and
a bolus drive mechanism coupled to the second fluid reservoir and configured to provide a bolus delivery of the second medicament.
2. The fluid delivery device of claim 1 further comprising:
a needle button extending from the housing and coupled to the needle.
3. The fluid delivery device of claim 1 , wherein the needle is fluidly isolated from the first fluid reservoir and the second fluid reservoir in an initial position.
4. The fluid delivery device of claim 1 further comprising:
a bolus pump chamber including a hydraulic fluid and coupled between the bolus drive mechanism and the second fluid reservoir.
5. The fluid delivery device of claim 1 , wherein the bolus drive mechanism includes a ratchet.
6. The fluid delivery device of claim 1 , wherein the first end of the needle is split into a first uptake arm in fluid communication with the first fluid reservoir and a second uptake arm in fluid communication with the second fluid reservoir.
7. A fluid delivery device for administering a first medicament and a second medicament, the fluid delivery device comprising:
a housing configured to have a first fluid reservoir containing the first medicament and a second fluid reservoir containing the second medicament;
a needle having a first end configured to be in fluid communication with the first fluid reservoir and the second fluid reservoir and a second end configured to extend from the housing;
a basal pump chamber having hydraulic fluid and coupled to the first fluid reservoir;
a basal drive mechanism having a hydraulic fluid reservoir, the hydraulic fluid reservoir including hydraulic fluid;
a flow restrictor fluidly coupling the hydraulic fluid reservoir with the basal pump chamber and configured to provide a basal delivery of the first medicament; and
a bolus drive mechanism coupled to the second fluid reservoir and configured to provide a bolus delivery of the second medicament.
8. The fluid delivery device of claim 7 further comprising:
a needle button extending from the housing and coupled to the needle.
9. The fluid delivery device of claim 7 further comprising:
a bolus pump chamber including a hydraulic fluid and coupled between the bolus drive mechanism and the second fluid reservoir.
10. The fluid delivery device of claim 7 , wherein the bolus drive mechanism includes a ratchet.
11. The fluid delivery device of claim 7 , wherein the first end of the needle is split into a first uptake arm in fluid communication with the first fluid reservoir and a second uptake arm in fluid communication with the second fluid reservoir.