Connection apparatus for a medical device

1. A connection apparatus for a medical device comprising:

a first connection member having a first end and a second end, the first connection member defining at least one channel adjacent the first end, the at least one channel having a first portion extending in an axial direction, a second portion extending in a transverse direction relative to the axial direction, and a third portion extending between the first portion and the second portion, the second portion of the at least one channel defining a terminus, the at least one channel having a shoulder adjacent to the first end of the first connection member that defines a channel entry, the first connection member having a curved wall that defines a portion of the first portion and the third portion of the at least one channel, the curved wall is curved from the channel entry to the second portion of the at least one channel; and

a second connection member having a first end and a second end, the second connection member having at least one protrusion adjacent the first end,

wherein when the at least one protrusion of the second connection member enters the at least one channel of the first connection member, axial movement of the second connection member towards the first connection member causes engagement of the at least one protrusion with the curved wall and at least one of the first and second connection members to rotate relative to the other connection member to enter a locked state where the at least one protrusion reaches the terminus of the second portion of the at least one channel, wherein the shoulder is configured to guide the at least one protrusion of the second connection member into the channel entry regardless of the orientation of the at least one protrusion relative to the channel entry.

2. The connection apparatus of claim 1 , wherein the channel entry is wider than the first portion of the at least one channel and the second portion of the at least one channel.

3. The connection apparatus of claim 1 , wherein the second portion of the at least one channel comprises a notch extending in the axial direction.

4. The connection apparatus of claim 3 , wherein the notch extends towards the first end of the first connection member.

5. The connection apparatus of claim 3 , wherein the notch extends towards the second end of the first connection member relative to the second portion of the at least one channel.

6. The connection apparatus of claim 3 , wherein the at least one protrusion forms a positive lock with the notch to removably secure the first connection member to the second connection member when the first and second connection members are in the locked state.

7. The connection apparatus of claim 1 , wherein the second portion of the at least one channel comprises a substantially axial notch extending distally and a substantially axial notch extending proximally relative to the first end of the first connection member.

8. The connection apparatus of claim 1 , wherein the first and second connection members further comprise fluid channels therethrough such that when the first connection member and second connection member are mated, the fluid channels form a fluid path.

9. The connection apparatus of claim 8 , wherein at least one of the first connection member and second connection member further comprises a self-healing membrane in the respective fluid channel and wherein when the first connection member is mated with the second connection member, the self-healing membrane forms a fluid-tight seal.

10. The connection apparatus of claim 1 , further comprising an indicator of the locked state between the first connection member and the second connection member.

11. The connection apparatus of claim 10 , wherein the indicator is a visual indicator.

12. The connection apparatus of claim 11 , wherein the first and second connection members each comprise a flat portion and a rounded portion, the visual indicator comprising alignment of the flat portion of the first connection member with the flat portion of the second connection member and the alignment of the round portion of the first connection member with the round portion of the second connection member.

13. The connection apparatus of claim 10 , wherein the indicator is a tactile indicator, and wherein the interaction of the at least one protrusion with a notch provides tactile indication of the locked state.

14. The connection apparatus of claim 1 , wherein the first end of the second connection member comprises sidewalls enclosing a hollow portion, the sidewalls extending axially away from the second end of the second connection member, and wherein the sidewalls include the at least one protrusion, the at least one protrusion extending inward.

15. The connection apparatus of claim 1 , wherein one of the first connection member and second connection member is provided on a syringe adapter and the other connection member is provided on at least one of a vial adapter and a patient connector.

16. The connection apparatus of claim 1 , wherein the shoulder is rounded and the first portion and the third portion of the at least one channel define a non-linear path.

17. A connection apparatus for a medical device comprising:

a first connection member having a first end and a second end, the first connection member defining at least one channel adjacent the first end, the at least one channel having a first portion extending from a position adjacent the first end of the first connection member toward the second end of the first connection member, a second portion extending in a transverse direction relative to the first portion, and a third portion extending between the first portion and the second portion, the at least one channel having a shoulder adjacent to the first end of the first connection member that defines a channel entry, the first connection member having a first wall that defines a portion of the first portion and the third portion of the at least one channel, the first wall extends along a non-linear path on the first connection member from the first end of the first connection member to the second portion of the at least one channel, the first connection member having a second wall that extends along a non-linear path on the connection member from the first end of the first connection member to the third portion of the at least one channel and extends along a non-linear path on the first connection member from the third portion to the second portion of the at least one channel; and

a second connection member having a first end and a second end, the second connection member having at least one protrusion adjacent the first end,

wherein the at least one protrusion of the second connection member is configured to be received by the at least one channel of the first connection member, the first connection member and the second connection member having a locked state where the first connection member is secured to the second connection member, the at least one protrusion of the second connection member positioned in the second portion of the at least one channel of the first connection member when the first and second connection members are in the locked state, and wherein the channel entry is wider than the first portion of the at least one channel of the first connection member.

18. The connection apparatus of claim 17 , wherein the second portion of the at least one channel of the first connection member extends in a transverse direction relative to a longitudinal axis of the first connection member.

19. The connection apparatus of claim 17 , wherein the second portion of the at least one channel comprises a notch extending in an axial direction.