Medicament delivery device
AssigneeSanofi-Aventis Deutschland GmbH
InventorsThomas Klemm, Dietmar Hammen
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a medicament delivery device comprising a medicament receiving element, at least one fluid chamber having a fluid outlet configured to direct fluid vapour towards the medicament receiving element, a heating element for heating the fluid in the at least one fluid chamber. The device is configured such that, in use, the heating element heats the fluid in the at least one fluid chamber to at least partially evaporate the fluid so that the vapor pressure in the at least one fluid chamber increases until the fluid is expelled out of the at least one fluid chamber through the fluid outlet towards the medicament receiving element and entrains the medicament towards the patient's skin.
Claims19
A medicament delivery device comprising:
- a medicament receiving element configured to directly receive a medicament from a medicament reservoir;
- at least one fluid chamber having a fluid outlet configured to direct fluid vapor towards the medicament receiving element;
- and
- a heating element for heating a fluid in the at least one fluid chamber,
- wherein the medicament delivery device is configured such that, in use, the heating element heats the fluid in the at least one fluid chamber to at least partially evaporate the fluid so that vapor pressure in the at least one fluid chamber increases until reaching a threshold value at which the fluid vapor is expelled out of the at least one fluid chamber through the fluid outlet towards the medicament receiving element and the fluid vapor entrains the medicament and directs the medicament towards a patient's skin.
A fluid chamber for use in a medicament delivery device, the fluid chamber comprising:
- a fluid outlet configured to direct fluid vapor towards a medicament receiving element of the medicament delivery device, the medicament receiving element being configured to directly receive a medicament from a medicament reservoir;
- and
- a heating element for heating a fluid in the fluid chamber, the heating element configured to heat the fluid in the fluid chamber to at least partially evaporate the fluid so that vapor pressure in the fluid chamber increases until reaching a threshold value at which the fluid vapor is expelled out of the fluid chamber through the fluid outlet towards the medicament receiving element of the medicament delivery device and the fluid vapor entrains the medicament and directs the medicament towards a patient's skin.
A method of delivering a medicament, the method comprising heating a fluid in at least one fluid chamber of a medicament delivery device to at least partially evaporate the fluid so that vapor pressure in the at least one fluid chamber increases until reaching a threshold value at which the fluid vapor is expelled out of the at least one fluid chamber towards a medicament receiving element of the medicament delivery device, the medicament receiving element being configured to directly receive the medicament from a medicament reservoir, and the fluid vapor entrains the medicament and directs the medicament towards a patient's skin.
Dependencies are inferred from the claim text.