Microneedle arrangement and adapter
AssigneeSanofi-Aventis Deutschland GmbH
InventorsHeinz Haenel, Michael Schabbach
Life of this patent
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Abstract
Described is a microneedle arrangement (1) comprising a body (2) having a proximal portion and a distal portion, a plurality of recesses (7) formed in proximal portion of the body (2), a microneedle array (5) disposed on the distal portion, and a connection needle (8) in fluid communication with the microneedle array (5) and extending proximally from the microneedle array (5). Further described is an adapter (9) comprising a coupling adapted to engage a medicament delivery device, an opening (14) adapted to receive the body (2), and a plurality of resilient latches (12) adapted to releasably engage the plurality of recesses (7) of the microneedle arrangement (1) when the body (2) is inserted into the opening (14).
Claims21
A microneedle device comprising:
- a body;
- a first interface disposed on a first portion of the body and comprising a first contoured surface having a recessed portion angled relative to a longitudinal axis of the microneedle device;
- a plurality of recesses formed in a second portion of the body concentrically arranged relative to the first portion, the second portion extending proximally beyond the first portion, wherein the recessed portion of the first contoured surface is configured to contact a second contoured surface of an adapter such that the microneedle device rotates relative to the adapter to align the recesses of the microneedle device with latches of the adapter when the recesses of the microneedle device are misaligned with the latches of the adapter;
- a microneedle array disposed on a distal portion of the body;
- and
- a connection needle in fluid communication with the microneedle array and extending proximally from the microneedle array along the longitudinal axis.
An adapter comprising:
- a shoulder configured to support a cartridge containing a medicament;
- a plurality of resilient latches extending from the shoulder and defining an opening configured to receive a microneedle device, the microneedle device comprising:
- a body,
- a first interface disposed on a first portion of the body and comprising a first contoured surface;
- a plurality of recesses formed in a second portion of the body, the second portion being concentrically arranged relative to the first portion and extending proximally beyond the first portion,
- a microneedle array disposed on the body, and
- a connection needle in fluid communication with the microneedle array and extending proximally from the microneedle array;
- and
- a second interface disposed on a distal portion of the adapter and comprising a second contoured surface having a recessed portion angled relative to a longitudinal axis of the adapter, the recessed portion of the second contoured surface being configured to contact the first contoured surface of the microneedle device such that the adapter rotates relative to the microneedle device to align the latches of the adapter with the recesses of the microneedle device when the latches of the adapter are misaligned with the recesses of the microneedle device,
- wherein the resilient latches are configured to releasably engage the recesses of the microneedle device when the body of the microneedle device is inserted into the opening.
A method of administering a medicament:
- removably coupling an adapter to a cartridge containing the medicament;
- engaging a first contoured surface disposed on a first portion of a microneedle device with a second contoured surface of the adapter such that a proximal facing recessed portion of the first contoured surface angled relative to a longitudinal axis of the microneedle device contacts a distal facing protruding portion of the second contoured surface angled relative to the longitudinal axis, thereby causing the adapter to rotate relative to the microneedle device such that recesses formed in a second portion of the microneedle device are aligned with latches of the adapter and to be removably coupled with the microneedle device such that fluid communication is established between a microneedle array of the microneedle device and the cartridge, wherein the second portion is concentrically arranged relative to the first portion of the microneedle device and extends proximally beyond the first portion of the microneedle device;
- and
- administering an intra-dermal injection of the medicament from the cartridge through the microneedle array.
Dependencies are inferred from the claim text.