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1. (WO2018224805) INJECTOR DEVICES
注意: このテキストは、OCR 処理によってテキスト化されたものです。法的な用途には PDF 版をご利用ください。

CLAIMS

1. An injector device (1) comprising:

a needle (4) having a proximal end (4A) for insertion into the skin of a patient and a distal end (4B) for insertion through a septum (9) in the neck of a drug cartridge (10), the alignment of the distal end (4B) defining an axis;

a collar region (3) for receiving the neck of the drug cartridge (10); and a needle support member (6, 13), which supports the needle (4) at a rest position close to the distal end (4B) before the neck of the drug cartridge (10) is received in the collar region (3), and which is displaceable by the neck of the drug cartridge (10) relative to the needle (4), such that the needle support member (6, 13) moves away from the rest position as the neck moves into the collar region (3).

2. An injector device (1) according to claim 1, wherein the needle support member (6) is attached to the collar (3) via a hinge.

3. An injector device (1) according to claim 2, wherein the collar (3) comprises a recess (7) for receiving the needle support member (6) when it has been displaced by the drug cartridge (10).

4. An injector device (1) according to claim 2 or claim 3, wherein the needle (4) curves such that the proximal end (4A) is aligned at an angle relative to the axis, and wherein the needle support member (6) is attached to the collar (3) on the opposite side of the axis from the proximal end (4A).

5. An injector device (1) according to any preceding claim, comprising two or more needle support members (6) distributed around the distal end (4B) of the needle (4).

6. An injector device (1) according to claim 1, wherein the needle support member (13) surrounds the distal end (4B) of the needle (4) and wherein the needle support member (13) is capable of sliding in the collar (3), parallel to the axis, as the needle support member (13) is displaced by the drug cartridge (10).

7. An injector device (1) according to claim 6, further comprising protrusions for increasing friction between the needle support member (13) and the collar (3).

8. An injector device (1) according to any preceding claim, wherein the proximal end (4A) and the distal end (4B) are opposite ends of a single needle (4) of constant diameter.

9. An injector device (1) according to claim 8, wherein the needle (4) curves through an arc such that the proximal end (4A) is aligned substantially at a right angle to the axis.

10. An injector device (1) according to any preceding claim, wherein the needle (4) is removably mounted in the device.

11. A method of coupling a drug cartridge to an injector device (1) comprising the steps of:

using a needle support member (6,13) to support a needle (4) within a collar (3) of the injector device (1) at a rest position close to a distal end (4B) of the needle (4); inserting a neck of the drug cartridge (10) into the collar (3);

piercing a septum (9) of the drug cartridge (10) with the distal end of the needle (4); and

pushing the drug cartridge further into the collar (3) to displace the needle support member (6, 13) relative to the needle (4), such that the needle support member (6,13) moves away from the rest position.

12. A method according to claim 11, wherein the step of displacing the needle support member (6) comprises bending the needle support member (6) about a hinge.

13. A method according to claim 11, wherein the step of displacing the needle support member (13) comprises sliding the needle support member (13) parallel to an axis of the collar (3).