Rigid sensor stopper for use in drug delivery devices
AssigneeVerily Life Sciences LLC
InventorsBrett Schleicher, Chuangang Lin, James Etzkorn
Life of this patent
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Abstract
The present disclosure relates to a rigid sensor stopper adapted for use in a drug delivery device. In one implementation, a rigid sensor stopper may include a transducer, a power source, a rigid molding or casing, and at least one elastomeric seal. The molding may be formed from overmolding or insert molding, and the casing may be formed from injection molding, machining, or forged casing. The at least one elastomeric seal may include at least two o-rings.
Claims17
A rigid sensor stopper adapted for a drug delivery device, comprising:
- a transducer;
- a power source coupled to the transducer;
- a rigid casing, wherein the transducer and the power source are disposed within the rigid casing;
- at least one seal disposed around the rigid casing, the at least one seal comprising an elastomeric material;
- and
- a phase-change material disposed within the rigid casing and having a chemical structure to change phase at a temperature lower than a degradation temperature of the power source, wherein the power source is disposed within the phase change material.
A rigid sensor stopper adapted for a drug delivery device, comprising:
- a power source;
- a transducer, wherein the transducer is configured to emit ultrasonic signals along a length of, and through a fluid in, a drug delivery device when the rigid sensor stopper is positioned in the drug delivery device, and wherein the power source is coupled to the transducer to supply power to the transducer;
- a rigid casing, wherein the transducer and the power source are disposed within the rigid casing;
- a seal disposed around the rigid casing, the seal comprising an elastomeric material;
- and
- a controller coupled to the transducer and the power source, wherein the controller includes logic that when executed by the controller causes the rigid sensor stopper to perform operations including:
- calculating a time of flight for the ultrasonic signals to travel from the transducer and return to the rigid sensor stopper.
A sensor stopper adapted for a drug delivery device, comprising:
- a transducer;
- a controller;
- a battery coupled to the transducer and the controller;
- a housing, wherein the transducer, the battery, and the controller are disposed within the housing;
- an elastomeric material disposed around the housing;
- and
- a phase-change material disposed within the housing and having a chemical structure to change phase at a temperature lower than a degradation temperature of the power source, wherein the battery and the controller are disposed within the phase change material.
Dependencies are inferred from the claim text.