1-13. (canceled)
14. An apparatus comprising:
a dispense interface for use with a drug delivery device, the dispense interface comprising a lockout element, the lockout element comprising at least one spring component removeably maintained in a respective first position such that when the dispense interface is first attached and then removed from said drug delivery device, each spring component moves into a respective second position, which respective second position is configured to prevent said dispense interface from being reattached to a drug delivery device.
15. The apparatus according to claim 14, wherein each spring component comprises a respective button spring, each respective button spring comprising a respective set of winged tabs.
16. The apparatus according to claim 15, wherein each button spring is an over-centering wing spring.
17. The apparatus according to claim 15, wherein each set of winged tabs comprises three winged tabs.
18. The apparatus according to claim 15, wherein each button spring is dome-shaped.
19. The apparatus according to claim 15, wherein each winged tab of each respective set of winged tabs is configured to move radially inward when the respective button spring moves into the respective second position.
20. The apparatus according to claim 14, wherein each spring component comprise a respective circlip spring.
21. The apparatus according to claim 20, wherein each circlip spring is maintained in a respective first diameter channel provided by the dispense interface in the respective first position.
22. The apparatus according to claim 21, wherein each circlip spring is configured to be shunted forwards into a respective second diameter channel which is on a smaller diameter than the respective first diameter channel when the dispense interface is attached to said drug delivery device.
23. The apparatus according to claim 22, wherein each circlip spring is configured to spring inwards in the radial direction when said dispense interface is removed from said drug delivery device.
24. The apparatus according to claim 23, wherein a portion of each circlip spring is configured to deflect sufficiently inward to shrink an effective receptive diameter to prevent said dispense interface from being reattached to a drug delivery device.
25. The apparatus according to claim 20, wherein each circlip spring is maintained in the respective first position by a respective tab.
26. The apparatus according to claim 25, wherein each circlip spring is configured to move into a respective locked condition upon deflection of the respective tab during the attachment of the dispense interface to said drug delivery device and subsequent detachment of the dispense interface from the drug delivery device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A filter cartridge comprising:
a body portion for enclosing filter media for filtering a fluid; and
a neck portion including an inlet port for directing unfiltered fluid into the body portion and an outlet port for directing filtered fluid out of the body portion, the body portion and the neck portion being operably connected such that one is not separable from the other, the neck portion having at least two lugs depending radially outwardly therefrom, each lug having engagement surfaces which face away from the body portion, wherein each lug has an inclined cam surface axially spaced from the body portion and facing toward the body portion in a generally axial direction for cooperating with camming ramps on a compatible reception assembly, at least one of the engagement surfaces defining a keyed surface formation comprising:
at least one tooth extending axially from remaining portions of the engagement surfaces relative to the neck, the at least one tooth enabling the cartridge to mate with a compatible reception assembly and preventing the cartridge from mating with an incompatible reception assembly.
2. A filter cartridge as recited in claim 1, wherein each lug has an engagement surface defining a keyed surface formation.
3. A filter cartridge as recited in claim 2, wherein the keyed surface formation on each lug of the cartridge is substantially similar.
4. A filter cartridge as recited in claim 2, wherein the keyed surface formation on each lug of the cartridge is different.
5. A filter cartridge as recited in claim 1, wherein the neck portion has a pair of diametrically opposed lugs.
6. A filter cartridge as recited in claim 1, wherein the neck portion has three circumferentially spaced apart lugs.
7. A filter cartridge as recited in claim 1, wherein the neck portion has first and second pairs of diametrically opposed lugs, wherein the first pair of lugs is disposed at a first height on the neck portion and the second pair of lugs is disposed at a second height on the neck portion.
8. A filter cartridge as recited in claim 1, wherein the keyed surface formation is on an axially facing engagement surface of the lug.
9. A filter cartridge as recited in claim 1, wherein the keyed surface formation is on a radially facing engagement surface of the lug.
10. A filter cartridge as recited in claim 1, wherein at least a first portion of the keyed surface formation is on an axially facing engagement surface of the lug and at least a second portion of the keyed surface formation is on a radially facing engagement surface of the lug.
11. A filter cartridge comprising:
a body portion for enclosing filter media for filtering a fluid; and
a neck portion including an inlet port for directing unfiltered fluid into the body portion and an outlet port for directing filtered fluid out of the body portion, the body portion and the neck portion being operably connected such that one is not separable from the other, the neck portion having at least two lugs depending radially outwardly therefrom, each lug having radial and axial engagement surfaces facing away from the body portion, wherein each lug has an inclined cam surface axially spaced from the body portion and facing toward the body portion in a generally axial direction for cooperating with camming ramps on a compatible reception assembly, at least one of the engagement surfaces defining a keyed surface formation comprising:
at least one protrusion extending axially from remaining portions of the engagement surfaces relative to the neck, the at least one protrusion enabling the cartridge to mate with a compatible reception assembly and preventing the cartridge from mating with an incompatible reception assembly.
12. A filter cartridge as recited in claim 11, wherein each lug has an engagement surface defining a keyed surface formation.
13. A filter cartridge as recited in claim 12, wherein the keyed surface formation on each lug of the cartridge is substantially similar.
14. A filter cartridge as recited in claim 12, wherein the keyed surface formation on each lug of the cartridge is different.
15. A filter cartridge as recited in claim 11, wherein the neck portion has a pair of diametrically opposed lugs.
16. A filter cartridge as recited in claim 11, wherein the neck portion has three circumferentially spaced apart lugs.
17. A filter cartridge as recited in claim 11, wherein the neck portion has first and second pairs of diametrically opposed lugs, wherein the first pair of lugs is disposed at a first height on the neck portion and the second pair of lugs is disposed at a second height on the neck portion.
18. A filter cartridge as recited in claim 11, wherein the keyed surface formation is on the axial engagement surface of the lug.
19. A filter cartridge as recited in claim 11, wherein the keyed surface formation is on the radial engagement surface of the lug.
20. A filter cartridge as recited in claim 11, wherein at least a first portion of the keyed surface formation is on the axial engagement surface of the lug and at least a second portion of the keyed surface formation is on the radial engagement surface of the lug.