Patch injector with slidable joint

• US 10,369,289 B2
• Filed: 10/10/2016
• Issued: 08/06/2019
• Est. Priority Date: 10/09/2015
• Status: Active Grant

• Current Assignee: West Pharma. Services IL, Ltd. (West Pharmaceutical Services Incorporated)
• Original Assignee: West Pharma. Services IL, Ltd. (West Pharmaceutical Services Incorporated)
• Inventors: Cabiri, Oz, Norton, Paul H., Hezkiahu, Ran
• Primary Examiner(s): Eisenberg, Rebecca E
• Assistant Examiner(s): Ahmed, Tasnim Mehjabin
• Application Number:
  US15/766,437
• Publication Number:
  US 20180311440A1
• Time in Patent Office: 1,030 Days
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/312 comprising sealing means, e.g. severable caps, to be removed prior to injection by, e.g. tearing or twisting
• CPC Class Codes: A61M 2005/31516 reducing dead-space in the syringe barrel after delivery
• CPC Class Codes: A61M 2005/341 angularly adjustable or angled away from the axis of the injector
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 2209/045 for filling, e.g. for filling reservoirs
• CPC Class Codes: A61M 2209/06 Packaging for specific medical equipment
• CPC Class Codes: A61M 5/008 Racks for supporting syringes or needles A61M5/001 takes precedence
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1456 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 Class Codes: A61M 5/28 Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
• CPC Class Codes: A61M 5/3134 characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/3202 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 Class Codes: A61M 5/3204 Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices
• CPC Class Codes: A61M 5/34 Constructions for connecting the needle , e.g. to syringe nozzle or needle hub connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: B29C 33/12 with incorporated means for positioning inserts, e.g. labels positioning reinforcements B29C70/541
• CPC Class Codes: B29L 2031/7544 Injection needles, syringes
• CPC Class Codes: B65D 1/36 with moulded compartments or partitions
• CPC Class Codes: B65D 21/0233 : Nestable containers
• CPC Class Codes: B65D 25/108 : Devices, e.g. plates, presenting apertures through which the articles project
• CPC Class Codes: B65D 5/503 : Tray-like elements formed in one piece formed by folding a blank B65D5/5038

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.

Claims

1. An injector, comprising

at least one fluid reservoir connected to a needle;

a surface configured for attachment to skin and coupled to said fluid reservoir by at least a first joint and a second joint, said first and second joints each being configured to permit sliding of the fluid reservoir with respect to said surface, defining a first degree of freedom for each of said first and second joints,

wherein at least one of said first and second joints is also configured to permit a second degree of freedom with respect to said surface, said second degree of freedom being a rotational degree of freedom permitting rotation of the fluid reservoir, and

wherein when said fluid reservoir is rotated with respect to said surface, said sliding of said fluid reservoir with respect to said surface permitted by the first and second joints concurrently with said rotation of the fluid reservoir with respect to said surface permitted by the at least one of said first and second joints, converts a curvilinear travel path of the needle into at least a portion of said needle crossing the surface within less than 5 degrees deviated from a straight line.

2. The injector according to claim 1, wherein at least a portion of a path of translation of said slidable portion of said first joint and a portion of a path of translation of said second joint are angled with respect to each another.

3. The injector according to claim 2, wherein at least a portion of said path of translation of said slidable portion of said second joint restricts said at least a portion of said path of translation of said slidable portion of said first joint.

4. The injector according to claim 2, wherein at least a portion of said path of translation of said second joint is curved.

5. The injector according to claim 4, wherein at least a portion of said needle is tangential to a curve defined by said rotational degree of freedom.

6. The injector according to claim 2, wherein when said fluid reservoir is rotated with respect to said surface, at least a portion of the travel path of at least a portion of said needle defined by at least said path of translation of said first joint and said path of translation of said second joint is configured to cross a surface of said skin along the straight line.

7. The injector according to claim 2, wherein at least a portion of at least one of said paths of translation is configured to be parallel to said skin upon attachment of the surface thereto.

8. The injector according to claim 1, wherein both degrees of freedom are on a same plane.

9. The injector according to claim 1, wherein when said fluid reservoir is rotated with respect to said surface, at least a portion of the travel path of at least a portion of said needle defined by at least said respective first and second degrees of freedom is configured to cross the surface of said skin along the straight line.

10. The injector according to claim 9, wherein said portion of said needle is the proximal edge of a bevel of said needle.

11. The injector according to claim 9, wherein a tilt angle of said needle is generally parallel to said straight line.

12. The injector according to claim 9, wherein said portion of said needle is a tip of said needle.

13. The injector according to claim 9, wherein at least said two degrees of freedom define a path of travel at which at least a portion of said needle is configured to cross the surface of said skin angled at less than 3 degrees with respect to said straight line.

14. The injector according to claim 9, wherein said portion of said needle is a tip that includes a beveled opening facing forward, away from a body of said fluid reservoir.

15. The injector according to claim 1, wherein said needle is configured to form an entry hole in skin with a diameter (Φ

) being twice the diameter (Φ

′

) of said needle.

16. The injector according to claim 1, wherein at least one of said joints includes at least one pin-in-slot hinge.

17. The injector according to claim 16, wherein at least one slot is configured to be oriented parallel to the surface of the skin upon attachment of the surface thereto.

18. The injector according to claim 1, wherein at least one of said first and second joints is located between a back, non-needle end and front, needle end of the injector.

19. The injector according to claim 1, wherein said fluid reservoir further comprises at least one angled head and plunger coupled to a tip of said head and wherein at least one of said joints comprises at least one slotted cylinder coupled to said surface and sized and fitted to slidingly accommodate said angled head and said plunger.

20. The injector according to claim 1, wherein at least a portion of said needle is resilient.

21. The injector according to claim 1, wherein at least a portion of said needle is curved.

22. The injector according to claim 1, wherein at least one joint comprises at least one groove and at least one protrusion slidingly accommodated within said groove.

23. The injector according to claim 1, wherein at least one joint comprises an elastic member.

24. An injector, comprising

at least one fluid reservoir connected to a needle;

a surface configured for attachment to skin and coupled to said fluid reservoir by at least a first joint and a second joint, said first and second joints each being configured to permit sliding of the fluid reservoir with respect to said surface, defining a first degree of freedom for each of said first and second joints, and wherein at least one of said first and second joints is also configured to permit at least a second, rotational degree of freedom permitting rotation of the fluid reservoir with respect to said surface and at least one of said joints comprises at least two interlocking arms,

wherein when said fluid reservoir is rotated with respect to said surface, said sliding of said fluid reservoir with respect to said surface permitted by the first and second joints concurrently with said rotation of the fluid reservoir with respect to said surface permitted by the at least one of said first and second joints, converts a curvilinear travel path of the needle into at least a portion of said needle crossing the surface within less than 5 degrees deviated from a straight line.

25. The injector according to claim 24, wherein at least one of said interlocking arms is pivotably coupled to said surface.

26. The injector according to claim 24, wherein said interlocking arms are pivotably coupled to each other.