Stabilized pen injector

• US 9,393,369 B2
• Filed: 12/04/2013
• Issued: 07/19/2016
• Est. Priority Date: 09/15/2008
• Status: Active Grant

• Current Assignee: West Pharma. Services IL, Ltd. (West Pharmaceutical Services Incorporated)
• Original Assignee: Medimop Medical Projects Ltd. (West Pharmaceutical Services Incorporated)
• Inventors: Hezkiahu, Ran, Cabiri, Oz
• Primary Examiner(s): Eisenberg, Rebecca E
• Application Number:
  US14/096,977
• Publication Number:
  US 20140163526A1
• Time in Patent Office: 958 Days
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/2006 Having specific accessories
• CPC Class Codes: A61M 2005/2013 triggering of discharging means by contact of injector with patient body
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• 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 5/326 Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence
• CPC Class Codes: A61M 5/425 Protruding skin to facilitate piercing, e.g. vacuum cylinders, vein immobilising means
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

In accordance with some embodiments of the present invention an automated injection device may be loaded with a standard type syringe and/or hypodermic needle. Optionally the syringe may be supplied loaded with medicine and/or covered with a sterile needle cover. The syringe may be loaded into the injector with in a sterile state with needle cover in place. Injector may include for example a fastener (for example an adhesive base). In some embodiments, the fastener may assist a user to hold injector steady on the skin of a patient for an extended period. For example, injector may be used to give injections of volume ranging between 0.5 and 3.0 ml over a time period ranging between 30 sec to 180 sec.

Claims

1. An autoinjector comprising:

a drug container having a principle longitudinal axis;

an adhesive layer which in operation is in contact with a skin of a patient in a vicinity of an injection site and which in operation is attached to said drug container orienting said principle longitudinal axis at an angle between 60 to 120 degrees to said injection site; and

a driver for discharging a contents of said drug container into said patient;

wherein in operation, said drug container moves with respect to said adhesive layer in a direction parallel to said principle longitudinal axis.

2. The autoinjector of claim 1 further including:

a needle in fluid communication with said drug container, said needle rigidly connected to said drug container and wherein in operation at least of portion of said needle projects from the autoinjector into said patient.

3. The autoinjector of claim 2, wherein said needle includes a straight needle and said needle protrudes from said drug container in a direction substantially parallel to said principle longitudinal axis.

4. The autoinjector of claim 2, wherein in operation said needle forms a fluid path directly from said drug container into said patient.

5. The autoinjector of claim 1, wherein said driver is internally powered.

6. The autoinjector of claim 5, further comprising:

a motor for powering said driver.

7. The autoinjector of claim 1, wherein said driver is configured for discharging said drug over a time period ranging between 30 seconds and 180 seconds.

8. The autoinjector of claim 1, wherein a volume of said drug container is between 0.5 and 3 ml.

9. The autoinjector of claim 8, wherein said automatic safeguard mechanism includes a needle retractor.

10. The autoinjector of claim 9, wherein the needle retractor is a rotary needle retractor.

11. The autoinjector of claim 1, further comprising:

a hypodermic needle and wherein said discharging is through said hypodermic needle; and

an automatic safeguard mechanism protecting said hypodermic needle at a completion of said discharging.

12. A method of injecting a substance into a patient comprising:

fastening an injector to the patient;

moving a medicine container linearly with respect to said injector to insert into the patient a needle rigidly attached to said medicine container; and

discharging the substance from said medicine container through said needle into the patient while said injector remains fastened to the patient.

13. The method of claim 12, wherein said discharging is a continuous dose of between 0.5 and 3 ml.

14. The method of claim 12, wherein said discharging continues for between 20 and 180 sec.

15. The method of claim 12, wherein said fastening includes adhering an adhesive to the patient.

16. The method of claim 12, wherein said moving is parallel to a principle longitudinal axis of said medicine container.

17. The method of claim 12, wherein said discharging is self powered.

18. The method of claim 17, wherein said discharging is powered by a motor.

19. The method of claim 12, wherein said moving is in a direction at an angle of between 60 and 120 degrees of a surface of a skin of the patient at an injection site.

20. A method of manufacture of a stabilized autoinjector comprising:

installing a syringe rigidly attached to a sterile needle and needle cap into a pen injector having an adhesive stabilizer; and

attaching a cover remover to said needle cap through a hole in said adhesive stabilizer.

21. The method of claim 20, wherein said installing includes engaging a plunger of said syringe to a power supply.

22. The method of claim 20, further comprising:

filling said syringe with between 1 and 3 ml of a medicine.