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1. (WO2005068010) ADAPTATEUR A ECOULEMENT CONTINU
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

WHAT IS CLAIMED IS:
1. An adaptor (20) for use with a fluid catheter (2) having a fluid lumen (8) extending between an upstream end and a downstream end, a normally closed valve (3) associated with said fluid lumen (8) and having a downstream side (6) communicating with said downstream end, the adaptor (20) for holding the valve (3) in an open state comprising:
a fluid tube (22) sized to sealingly engage said downstream end of said fluid catheter (2) in fluid communication with said downstream side (6) of said valve (3), and an internal diameter sized for fluid to flow therethrough;
a member (24) which either or both (a) is associated with the fluid tube (22) and/or (b) extends beyond the fluid tube (22), the member (24) having an external dimension sized to allow fluid to flow
therearound and into the fluid tube (22), the member (24) adapted to engage said valve (3) from said downstream side (6) thereof when the fluid tube (22) is in sealing engagement with said downstream end and to hold said valve (3) open while the fluid tube (22) is sealingly engaged with said downstream end such that fluid is to pass through said valve
(3) and through the fluid tube (22).

2. The adaptor of claim 1 , wherein said downstream end of said fluid catheter (2) is tubular and extends downstream from said valve (3), the fluid tube (22) of the adaptor being sized to engage within said tubular downstream end to thereby sealingly engage therewith.

3. The adaptor of claim 1 or claim 2, further comprising a releasable clip

(30, 32) adapted to selectively secure the fluid tube (22) in said sealing engagement with said downstream end.

4. The adaptor of claim 3, wherein one portion (23) of the fluid tube engages within the downstream end and the releasable clip (30, 32) includes a region (37 or 38) adapted to pinch a portion of said downstream end between the releasable clip and a portion of the fluid tube (22) engaged within said downstream end.

5. The adaptor of claim 4, wherein a part of the region (37 or 38), which is in contact with said downstream end, has a contour substantially similar to a contour of said downstream end.

6. The adaptor of any of claims 3 through 5, wherein the releasable clip further includes a first portion adapted to selectively urge an inner surface of said downstream end against the fluid tube.

7. The adaptor of any of claims 3 through 6, wherein the releasable clip further includes a first resilient leg (30) and a second resilient leg (32) with the fluid tube (22) disposed therebetween; and a flange (34) on the first resilient leg (30) adapted to releasably lock with a detent (36) on the second resilient leg (32) when the legs are urged towards one another.

8. The adaptor of claim 7, wherein the first resilient leg (30) includes a first pinch rib (37) adapted to selectively urge a first region of said downstream end against the fluid tube (22); and the second resilient leg (32) includes a second pinch rib (38) adapted to selectively urge a second region of said downstream end against the fluid tube (22).

9. The adaptor of claim 7 or claim 8, wherein the first resilient leg (30) includes a safety rib (35) adapted to prevent the first resilient leg (30) from being urged against the fluid tube (22) more than a predetermined amount.

10. The adaptor of any preceding claim, further comprising a protuberance positioned to butt up against a portion of said fluid catheter (2) when the member (24) engages said downstream side (6) of said valve (3) thereby preventing the member (24) from being further inserted into said valve (3).

11. The adaptor of claim 10 when dependent on any of claims 3 through 9, wherein the protuberance is located on the releasable clip (30, 32).

12. The adaptor of any preceding claim, the member (24) being rod-shaped.

13. The adaptor of any preceding claim, the member (24) being solid in cross-section.

14. The adaptor of any of claims 1 through 12, the member (24) being hollow in cross-section such that fluid also flows therethrough.

15. The adaptor of any preceding claim, wherein the member (24) is sized to pass through said valve (3).

16. The adaptor of any preceding claim, wherein the member (24) extends beyond the fluid tube (22).

17. An adaptor (20) for use with a fluid catheter (2) having a fluid lumen (8) extending between an upstream end and a downstream end, a normally-closed valve (3) associated with said fluid lumen (8) and having a downstream side (6) communicating with said downstream end, the adaptor (20) for holding the valve (3) in an open state comprising:
a fluid tube (22) sized to sealingly engage said downstream end of said fluid catheter (2) for fluid flow therethrough; and
a releasable clip (30, 32) external to the fluid tube (22) adapted to selectively secure the fluid tube (22) in said sealing engagement with said downstream end.

18. The adaptor of claim 17, wherein the releasable clip further includes a first portion adapted to selectively urge a portion of the downstream end against the fluid tube.

19. The adaptor of claim 17 or claim 18, wherein said releasable clip further includes a first resilient leg (30) and a second resilient leg (32) with the fluid tube (22) disposed therebetween; and a flange (34) on the first resilient leg (30) adapted to releasably lock with a detent (36) on the second resilient leg (32), when the legs are urged towards one another.

20. The adaptor of claim 19, wherein the first resilient leg (30) includes a first pinch rib (37) adapted to selectively urge a first region of said downstream end against the fluid tube (22); and the second resilient leg (32) includes a second pinch rib (38) adapted to selectively urge a second region of said downstream end against the fluid tube (22).

21. The adaptor of any of claims 17 through 20, wherein the adaptor further includes a member (24) having an external dimension sized to allow fluid to flow therearound and into the fluid tube (22), the member (24) adapted to engage said downstream side (6) of said valve (3) when the fluid tube (22) is in sealing engagement with said downstream end and hold said valve (3) open by internal actuation while the fluid tube (22) is sealingly engaged with said downstream end such that fluid is to pass through said valve (3) and tlirough the fluid tube (22).

22. The adaptor of claim 21, wherein the releasable clip further includes a protuberance positioned to butt up against a portion of said fluid catheter (2) when the member (24) engages said downstream side (6) of said valve (3) thereby preventing the member (24) from being further inserted into said valve (3).

23. The adaptor of any of claims 17 through 22, wherein the fluid tube (22) has an external diameter sized to fit within said downstream end of said fluid catheter (2) in fluid communication with said downstream side (6) of said valve (3), and an internal diameter sized for fluid to flow therethrough.

24. An adaptor (20) comprising:
a fluid tube (22), the fluid tube (22) having a downstream end and an upstream end;
a valve opening member (24) which either or both (a) is
associated with the fluid tube (22); and/or (b) extends beyond the fluid tube (22) upstream therefrom; and
a clip (30, 32) fixedly coupled with the fluid tube (22); the clip having a first resilient leg (30) with a first opening (60) accommodating said downstream end, and a second resilient leg (32) with a second opening (64) through which the valve opening member extends, and the first resilient leg (30) and the second resilient leg (32) positioned with the fluid tube (22) disposed therebetween.

25. The adaptor of claim 24 further comprising a safety rib (37) on the first resilient leg (30) and extending towards the fluid tube (22), the safety rib (37) being adapted to prevent the first resilient leg (30) from being urged against the fluid tube (22) more than a predetermined amount.

26. The adaptor of claim 24 or claim 25 further comprising a resilient rib (37 or 38) on one of the resilient legs (30 or 32) and extending towards the fluid tube (22), the resilient rib (37 or 38) being adapted to communicate with the fluid tube (22) when the clip is in a closed position.

27. The adaptor of claim 26, the resilient rib (37 or 38) being disposed at an angle.

28. The adaptor of any previous claim in combination with a fluid catheter (22) comprising a fluid lumen (8) extending between an upstream end and a downstream end, a normally-closed valve (3) associated with said fluid lumen (8) and having a downstream side (6) in communication with said downstream end.

29. The arrangement according to claim 28, wherein the valve (3) includes a duck-bill valve.

30. The arrangement according to claim 28 or claim 29, when either is dependent on any of claims 1 through 16 and 21 through 27, wherein the member (24) of the adaptor further includes a rod (24) having a major axis substantially aligned with a major axis of the downstream end of the fluid lumen (8) and is positioned within the valve (3), when the member (24) engages the valve (3), so as to form a respective open region (70, 72) on each side of the rod (24) bounded by the valve (3).

31. The arrangement according to claim 30, wherein a combined cross-sectional area of the respective open regions (70, 72) is larger than a cross-sectional area of the rod (24).

32. The arrangement according to claim 30 or 31 , wherein the rod (24) comprises a hollow central region along its major axis whereby fluid flows out of the catheter through the hollow central region.

33. A method for continuously discharging fluid from a fluid catheter (2) having a normally-closed valve (3), the method comprising:
inserting an adaptor (20) within an outlet of the catheter to form a seal between the outlet and a first portion (22) of the adaptor (20); and holding said valve (3) open with a second portion (24) of the adaptor (20), said second portion (24) upstream of the first portion (22) and positioned in a non-sealing arrangement with the valve (3) and having an external dimension sized to allow fluid to flow therearound and into the first portion (22).

34. A method for continuously discharging fluid from a fluid catheter (2) having a normally-closed valve (3), the method comprising: engaging an outlet of the catheter (2) with an adaptor (20) to form a seal between the outlet (4) and a first portion (22) of the adaptor (20); and
holding said valve (3) open with a second portion (24) of said adaptor (20), said second portion (24) positioned in a non-sealing
arrangement with said valve (3) and having an external dimension sized to allow fluid to flow therearound and into the first portion (22).

35. The method according to claim 34, wherein engaging includes inserting the adaptor (20) within the outlet of the catheter to form a seal between the outlet and the first portion (22) of the adaptor (20).

36. The method according to claims 33 through 35, wherein said second portion (24) comprises a rod (24) having an outside diameter smaller than an inside diameter of the valve (3).

37. The method according to any of claims 33 through 36, further comprising preventing inserting of the adaptor more than a predetermined distance.

38. The method according to any of claims 33 through 37, further comprising releasably locking the adaptor (20) to the fluid catheter (2).

39. The method according to any of claims 35 through 38, wherein the outlet includes a discharge tube (4) of the catheter (2).