Patch injector with slidable joint

Patent metadata

Field	Value
Publication number	US-11110224-B2
Application number	US-201916448517-A
Country	US
Kind code	B2
Filing date	Jun 21, 2019
Priority date	Oct 9, 2015
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

An injector including at least one fluid reservoir having a needle, a surface attached to skin and coupled to the fluid reservoir by at least a first joint and a second joint at least a portion of one of the joints being slidable or having interlocking arms. At least a portion of a path of translation of a slidable portion of the first joint and a portion of a path of translation of the second joint are angled in respect to each another.

First claim

What is claimed is:

1. A method of injection, comprising:
rotating a needle connected to a fluid reservoir relative to a surface configured for attachment to skin about a first joint;
concurrently moving the needle along a translational degree of freedom of each of the first joint and a second joint; and
inserting at least a portion of the needle across a surface of skin;
wherein the concurrently rotating and translating the needle converts a curvilinear travel path of the needle into at least a portion of the needle crossing the surface within less than 5 degrees deviated from a straight line.

2. The method according to claim 1 , wherein inserting at least a portion of the needle across the surface of skin is angled at less than 3 degrees from the straight line.

3. The method according to claim 1 , wherein inserting at least a portion of the needle across the surface of skin is angled at less than 1 degree from the straight line.

4. The method according to claim 2 , wherein the translational degree of freedom of one of the first and second joints is axial with respect to the surface of skin.

5. The method according to claim 4 , wherein the movement in the translational degree of freedom of one of the first and second joints is in a back and forth direction.

6. The method according to claim 2 , wherein the concurrently rotating and moving the needle comprises adjusting a path of travel and/or angle of tilt of the needle entering the skin.

7. The method according to claim 6 , further comprising forming an entry hole in the surface of skin with a diameter (Φ) being at least twice the diameter (Φ′) of the needle.

8. The method according to claim 1 , wherein at least a portion of the needle is resilient.

9. The method according to claim 1 , wherein at least a portion of the needle is curved.

10. A method of injection, comprising:
rotating a needle connected to a fluid reservoir relative to a surface configured for attachment to skin about a first joint;
concurrently moving the needle along a translational degree of freedom of each of the first joint and a second joint; and
inserting at least a portion of the needle across a surface of skin;
forming an entry hole in the surface of skin with a diameter (Φ) being at least 1.5 times the diameter (Φ′) of the needle.

11. The method according to claim 10 , wherein inserting at least a portion of the needle across the surface of skin is angled at less than 5 degrees from the straight line.

12. The method according to claim 10 , wherein inserting at least a portion of the needle across the surface of skin is angled at less than 3 degrees from the straight line.

13. The method according to claim 10 , wherein the translational degree of freedom of one of the first and second joints is axial with respect to the surface of skin.

14. The method according to claim 13 , wherein the movement in the translational degree of freedom of one of the first and second joints is in a back and forth direction.

15. The method according to claim 13 , wherein the concurrently rotating and moving the needle comprises adjusting a path of travel and/or angle of tilt of the needle entering the surface of skin.

16. The method according to claim 15 , wherein the formed entry hole in the skin has a diameter (Φ) being at least twice the diameter (Φ′) of the needle.

17. The method according to claim 10 , wherein at least a portion of the needle is resilient.

18. The method according to claim 10 , wherein at least a portion of the needle is curved.

Assignees

• West Pharma Services Il Ltd

Inventors

• Cabiri Oz
• Norton Paul H
• Hezkiahu Ran

Classifications

• A61M5/34

  Constructions for connecting the needle {, e.g. to syringe nozzle or needle hub (connecting catheter tubes to hubs A61M25/0014)} · CPC title

• A61M5/3202 Primary

  Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001) · CPC title

• B65D25/108

  Devices, e.g. plates, presenting apertures through which the articles project · CPC title

• A61M5/1456

  with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir · CPC title

• B65D1/36

  with moulded compartments or partitions · CPC title