Reservoir for Front End Loaded Infusion Device

• US 20080262425A1
• Filed: 08/11/2005
• Published: 10/23/2008
• Est. Priority Date: 08/13/2004
• Status: Abandoned Application

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Mogensen, Lasse W.
• Application Number:
  US11/659,931
• Publication Number:
  US 20080262425A1
• Time in Patent Office: Days
• US Class Current: 604/118
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump

Abstract

A medical reservoir (1) for a front loaded infusion device (100) comprising a housing (101), a chamber (104) inside said housing for receiving said reservoir and a drive member (102). Said reservoir comprises a first end (2); an outlet (6) disposed at said first end, said outlet having closable dispensing means; a second open end (3); an elongate body portion (4) disposed between said first and second ends; and a piston (30) slideable arranged within said elongate body portion and being connectable to said drive member.

Claims

1-10. -10. (canceled)

11. A medical reservoir for a front loaded infusion device, said infusion device comprising a housing, a chamber inside said housing for receiving said reservoir and a drive member, said reservoir comprising:

a first end;

an outlet disposed at said first end, said outlet having closable dispensing means;

a second open end;

an elongate body portion disposed between said first and second ends;

sealing means disposed at the first end of said reservoir adapted for closing said chamber;

a first set of connecting means for securing the reservoir in the housing, said first set of connecting means being permanently affixed on a distal portion of an outer surface of the elongate body portion; and

a piston slideably arranged within said elongate body portion and being connectable to said drive member.

12. A medical reservoir according to claim 11 wherein said dispensing means is an infusion tube fixedly arranged to the first end of the reservoir, and in fluid communication with said outlet.

13. A medical reservoir according to claim 11 wherein said sealing means comprise a rearwardly facing surface of an annular collar disposed at the first end of the reservoir.

14. A medical reservoir according to claim 11 wherein said reservoir comprises a second set of connecting means.

15. A medical reservoir according to claim 14 wherein said second set of connecting means are disposed on an annular collar.

16. A medical reservoir according to claim 15 wherein said second set of connecting means comprises at least one flexible arm on said collar.

17. A medical reservoir according to claim 11 wherein said reservoir further comprises a mechanism for refilling the reservoir.

18. A medical reservoir according to claim 11 wherein said reservoir further comprises a vent for equalizing the pressure in a chamber of the infusion device receiving said reservoir.

19. A medical reservoir according to claim 18 wherein said vent comprises a channel providing a connection between a front wall and the side wall of said reservoir.

20. A medical reservoir according to claim 19 wherein said vent further comprises membrane disposed at said front wall.

21. The reservoir of claim 11 wherein said connecting means is formed integrally with said elongate body.

22. The reservoir of claim 11 wherein said connecting means is non-rotatably affixed to said elongate body.

23. The reservoir of claim 11 wherein said connecting means is configured for substantially flush mounting of said reservoir in said housing.

24. A medical reservoir for an infusion device, said infusion device comprising a housing having a chamber therein for receiving said reservoir and a drive member, said reservoir comprising:

an elongate body portion comprising a first end, a second end and an outer surface extending between said first and second ends;

said first end comprising an outlet having a dispensing member and a sealing member adapted for closing said chamber;

a first connector on a distal portion of said outer surface for securing said reservoir in said chamber, said connector being integrally formed with said outer surface; and

a piston slidably received within said body portion and adapted for connection to said driver.

25. The reservoir of claim 24 wherein said sealing member comprises a rearwardly facing surface of an annular collar disposed at the first end portion.

26. The reservoir of claim 24 further comprising a second connector on said outer surface.

27. The reservoir of claim 26 wherein said second connector comprises at least one flexible arm extending from an annular collar on said reservoir.

28. The reservoir of claim 24 further comprising a vent for equalizing the pressure in the chamber.

29. The reservoir of claim 28 wherein said vent comprises a membrane disposed at a front wall of the reservoir.

30. The reservoir of claim 24 further comprising an inlet mechanism for refilling the reservoir.

31. The reservoir of claim 24 wherein said dispensing member comprises an infusion tube connected to the first end and in fluid communication with the outlet.