Reservoir for front end loaded infusion device

• US 20060100581A1
• Filed: 08/17/2004
• Published: 05/11/2006
• Est. Priority Date: 08/13/2004
• Status: Abandoned Application

• Current Assignee: Unomedical AS (ConvaTec Group Plc)
• Original Assignee: Unomedical AS (ConvaTec Group Plc)
• Inventors: Mogensen, Lasse Wesseltoft
• Application Number:
  US10/920,050
• Publication Number:
  US 20060100581A1
• Time in Patent Office: Days
• US Class Current: 604/154
• 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 for a front loaded infusion device including a housing, a chamber inside the housing for receiving the reservoir and a drive member. The reservoir includes a first end; an outlet disposed at the first end, the outlet having closable dispensing means; a second open end; an elongate body portion disposed between the first and second ends; and a piston slideably arranged within the elongate body portion and being connectable to the drive member.

Claims

1. A medical reservoir (1) for a front loaded infusion device (100) comprising a housing (101), a chamber (104) inside said housing (101) for receiving said reservoir (1) and a drive member (102), said reservoir (1) comprising

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 (2, 3); and

a piston (30) slideably arranged within said elongate body portion (4) and being connectable to said drive member (102), wherein said reservoir (1) further comprises sealing means (21) disposed at the first end (2) of said reservoir (1) adapted for closing said chamber (104), at least one set of connecting means (40, 50) for securing the reservoir (1) in the housing (101).

2. A medical reservoir (1) according to claim 1 wherein said dispensing means is an infusion tube (60) fixedly arranged to the distal end (2) of the reservoir (1), and in fluid communication with said outlet (6).

3. A medical reservoir (1) according to claim 1 wherein said sealing means (21) comprise a rearwardly facing surface of an annular collar (20) disposed at the distal end (2) of the reservoir (1).

4. A medical reservoir (1) according to claim 1 wherein said connection means comprise a first set of connecting means (40), disposed on the outer surface of body portion (4).

5. A medical reservoir (1) according to claim 4 wherein said first set of connecting means (40) are disposed on the distal half of the outer surface of body portion (4).

6. A medical reservoir (1) according to claim 1 wherein said reservoir (1) comprises a second set of connecting means (50).

7. A medical reservoir (1) according to claim 6 wherein said second set of connecting means (50) are disposed on said collar (20).

8. A medical reservoir (1) according to claim 7 wherein said second set of connecting means (50) comprises at least one flexible arm (51) on said collar (20).

9. A medical reservoir (1) according to claim 1 wherein said reservoir further comprises a mechanism (70) for refilling the reservoir.

10. A medical reservoir (1) according to claim 1 wherein said reservoir further comprises a vent (80) for equalizing the pressure in a chamber of the infusion receiving said reservoir (1).

11. A medical reservoir (1) according to claim 10 wherein said vent (80) comprises a channel providing a connection between a front wall (5) and the side wall (4) of said reservoir (1).

12. A medical reservoir (1) according to claim 11 wherein said vent (80) further comprises membrane disposed at said front wall (5).