Drug delivery device and method

A method comprising:

• providing a wearable drug delivery device comprising an outer housing, a drug storage container positioned at least partially within the outer housing, an insertion mechanism positioned at least partially within the outer housing, the insertion mechanism including an insertion mechanism housing, a rotational biasing member configured to rotate the insertion mechanism housing, a delivery member configured for insertion into a patient, and a retainer having a first position wherein the retainer is operably coupled with the insertion mechanism housing to prevent rotation of the insertion mechanism housing and a second position wherein the retainer is at least temporarily uncoupled from the insertion mechanism housing to allow rotation of the insertion mechanism housing, wherein at least a portion of the delivery member is initially disposed within the insertion mechanism housing;
• positioning the outer housing in contact with the patient;
• moving the retainer from the first position to the second position to allow the rotational biasing member to rotate of the insertion mechanism housing, wherein rotation of the insertion mechanism housing causes the delivery member to be inserted at least partially into the patient;
• and
• moving a drug out of the drug storage container into the patient via the delivery member.

A wearable drug delivery device comprising:

• an outer housing attachable to a patient;
• a drug storage container positioned at least partially within the outer housing;
• an insertion mechanism positioned at least partially within the outer housing and including:
• an insertion mechanism housing,
• a rotational biasing member configured to rotate the insertion mechanism housing, and
• a delivery member connected or configured to be connected in fluid communication with the drug storage container and configured for insertion into the patient;
• a retainer selectively moveable with respect to the insertion mechanism housing, the retainer having a first position wherein the retainer is operably coupled with the insertion mechanism housing to prevent rotation of the insertion mechanism housing and a second position wherein the retainer is at least temporarily uncoupled from the insertion mechanism housing to allow rotation of the insertion mechanism housing;
• and
• wherein:
• the outer housing comprises a bottom surface removably attachable to the patient,
• the rotational biasing member is configured to rotate the insertion mechanism housing about an axis, and
• the axis is substantially perpendicular to the bottom surface of the outer housing.

A method comprising:

• providing a wearable drug delivery device comprising an outer housing, a drug storage container positioned at least partially within the outer housing, an insertion mechanism positioned at least partially within the outer housing, the insertion mechanism including an insertion mechanism housing, a rotational biasing member configured to rotate the insertion mechanism housing, a delivery member configured for insertion into a patient, and a retainer having a first position wherein the retainer is operably coupled with the insertion mechanism housing to prevent rotation of the insertion mechanism housing and a second position wherein the retainer is at least temporarily uncoupled from the insertion mechanism housing to allow rotation of the insertion mechanism housing;
• positioning the outer housing in contact with the patient;
• moving the retainer from the first position to the second position to allow the rotational biasing member to rotate of the insertion mechanism housing, wherein rotation of the insertion mechanism housing causes the delivery member to be inserted at least partially into the patient;
• moving a drug out of the drug storage container into the patient via the delivery member;
• and
• wherein:
• the outer housing comprises a bottom surface removably attachable to the patient,
• the rotational biasing member is configured to rotate the insertion mechanism housing about an axis, and
• the axis is substantially perpendicular to the bottom surface of the outer housing.