APPARATUS FOR CONNECTING A TUBE CONNECTOR TO A FITTING AND TO FASTEN OR UNFASTEN CLOSURE CAPS

Abstract

The invention relates to a removable unit (1) for an apparatus (2) for connecting and disconnecting a tubular fitting (24) to a connector (14), comprising: a body (16) having: a first port (18) and a second port (20), each said ports configured for receiving an end cap (22) of the tubular fitting (24), and a connector holder (26) being disposed between said first and second ports (18, 20), and configured for accommodating insertion of the connector (14); wherein said body (16) is configured to be connected to said apparatus (2) in a releasable fashion.

Claims

1. A removable unit (1) for an apparatus (2) for connecting and disconnecting a tubular fitting (24) to a connector (14), comprising: a body (16) having: a first port (18) and a second port (20), wherein each of said ports is configured for receiving an end cap (22) of the tubular fitting (24), and a connector holder (26) being disposed between said first and said second port (18, 20) and configured for accommodating insertion of the connector (14); wherein said body (16) is configured to be connected to said apparatus (2) in a releasable fashion.

2. The removable unit according to claim 1, characterized in that said body (16) comprises a latching means (161, 161a) for connecting the body (16) in a releasable fashion to said apparatus (2).

3. The removable unit according to claim 1 or 2, characterized in that the removable unit (1) is configured to be sterilized for allowing multiple uses, or wherein the removable unit (1) is a disposable unit (1) that is designed for one of: a single use, particularly comprising unfastening an end cap (22) from the tubular fitting (24), connecting the connector (14) inserted into the connector holder (26) to the tubular fitting (24), disconnecting the connector (14) from the tubular fitting (24), and fastening an end cap (22) received in the second port (20) to the tubular fitting (24), a finite number of uses.

4. The removable unit according to one of the preceding claims, characterized in that the removable unit (1) comprises an end cap (22) arranged in a receptacle (20a) formed by the second port (20), wherein particularly said end cap (22) is completely arranged in said receptacle (20a).

5. The removable unit according to claim 4, characterized in that said receptacle (20a) is closed, particularly hermetically closed, by a closure (23) comprising a peel-off seal (23a), which peel-off seal (23a) is attached to a circumferential face side (20b) of the second port (20).

6. The removable unit according to claim 5, characterized in that said closure (23) comprises a flexible strip (23b) connected to the peel-off seal (23a), which strip (23b) comprises a free end section (23c) that forms a handle by means of which the peel-off seal (23a) can be peeled off the second port (20), particularly from outside or inside a housing (40) of the apparatus (2), wherein particularly said free end section (23c) is configured to be arranged between a bottom (42b) and a cover (42) of said housing (40) such that the free end section (23c) of the strip (23b) protrudes out of the housing (40).

7. The removable unit according to one of the claims 4 to 6, characterized in that a flexible means (25), particularly a sponge (25), that carries an anti-bacterial agent or fluid, is in contact with said end cap (22) and is arranged in the receptacle (20a).

8. The removable unit according to one of the claims 4 to 7, characterized in that said end cap (22) comprises a disinfectant, wherein particularly said end cap (22) is at least partially or completely formed out of said disinfectant, or comprises a coating comprising said disinfectant.

9. The removable unit according to one of the claims 1 to 8, characterized in that the body (16) is configured to be connected to a movable carrier (12a) of said apparatus (2) in a releasable fashion, wherein particularly said carrier (12a) is movable with respect to the bottom (42b) of the housing (40) of the apparatus (2) so that the removable unit (1) can be moved together with said carrier (12a) inside said housing (40).

10. The removable unit according to one of the preceding claims, characterized in that the body (16) comprises a top side (16a).

11. The removable unit according to claims 9 and 10, characterized in that two through-holes (16b) are formed in the body (16) on the top side which are each configured to receive an associated pin (120) protruding from said carrier (12a) when the body (16) is connected to the carrier (12a), wherein particularly a face side of the respective pin (120) is flush with the top side (16a) when the removable unit (1) is connected to the carrier (12a).

12. The removable unit according to claim 10 or 11, characterized in that the top side (16a) comprises a through-hole (168a) which indicates the position of a frangible inline seal (168) of a first conduit (14a) of the connector (14).

13. The removable unit according to claim 9 or one of the claims 10 to 12 when referring to claim 9, characterized in that for establishing said releasable connection between the body (16) and the carrier (12a), the body (16) comprises two opposing internal surfaces (160) wherein said internal surfaces face each other, and wherein a latching means (161), particularly a latching nose (161), is provided on each internal surface (160) for engaging with a complementary latching means (161a), particularly a recess (161a), of the carrier (12a).

14. The removable unit according to one of the preceding claims, characterized in that the body (16) comprises a front side wall (16c) and an opposing back side wall (16d).

15. The removable unit according to claims 10 and 14, characterized in that the connector holder (26) comprises a recess (260) for receiving the connector (14), which recess (260) is arranged on the top side (16a) and extends from the front side wall (16c) to a back side wall (16d) of the body (16).

16. The removable unit according to claim 15, characterized in that the recess (260) comprises an end region (261) extending from the front side wall (16c), which end region (261) branches out into a first and a second region (262, 263) that extend from said end region (261) to the back side wall (16d), respectively, wherein said recess (260) is configured to receive a connector (14), which connector (14) particularly comprises at least one conduit (14aa), which is connected to an end section (14c) of the connector (14), via which end section (14c) the connector (14) is configured to be connected to said tubular fitting (24), wherein the end region (261) is configured to receive said end section (14c) of the connector (14), and wherein the second region (263) is configured to receive said at least one conduit (14aa), or a first conduit (14a) and a second conduit (14b), wherein the two conduits (14a, 14b) branch off from an end section (14c) of the connector (14), via which end section (14c) the connector (14) is configured to be connected to said tubular fitting (24), wherein the end region (261) is configured to receive said end section (14c) of the connector (14), and wherein the first region (262) is configured to receive the first conduit (14a), and wherein the second region (263) is configured to receive the second conduit (14b).

17. The removable unit according to claims 14 and 16, characterized in that the removable unit (1) comprises a protrusion (162) protruding from the front side wall (16c) and extending along the end region (261) of the recess (260) on the front side wall (16c), wherein particularly said protrusion (162) is configured to prevent an inclination of the end section (14c) of the connector (14) with respect to an axial direction (A) of the end section (14c) when said end section (14c) is inserted in said end region (261) of the recess (260).

18. The removable unit according to claims 10 and 16, characterized in that the body (16) comprises two holding means (163) arranged on the top side (16a) of the body (16), wherein the two holding means (163) are arranged on opposing side walls (261a, 261b) of the end region (261) of the recess (260) for holding the end section (14c) of the connector (14) in the end region (261) of the recess (260) when said end section (14c) is arranged in said end region (261) of the recess (260).

19. The removable unit according to claim 16 or according to one of the claims 17 to 18 when referring to claim 16, characterized in that the body (16) comprises two holding means (164), wherein each of said holding means (164) forms a tooth structure (164), and wherein the respective holding means (164) protrudes from an associated sidewall (261a, 261b) of the end region (261) of the recess (260), wherein said two sidewalls face each other, and wherein said tooth structures are configured to prevent a movement of the end section (14c) of the connector (14) in an axial direction (A) when said end section of the connector is arranged in said end region of the recess and a force pulls said end section in said axial direction (A).

20. The removable unit according to claim 16 or according to one of the claims 17 to 19 when referring to claim 16, characterized in that the body (16) comprises a holding means (165) arranged in the first region (262) of the recess (262), which holding means (165) is configured to clamp the first conduit (14a) of the connector (14) when said first conduit (14a) is arranged in the first region (262) of the recess (260), and/or wherein the body (16) comprises a holding means (165) arranged in the second region (263) of the recess (260), which holding means (165) is configured to clamp the second conduit (14b) or said at least one conduit (14aa) of the connector (14) when said second conduit (14b) or said at least one conduit (14aa) is arranged in the second region (263) of the recess (260).

21. The removable unit according to claim 14 and according to one of the claims 16 to 20, characterized in that the body (16) comprises a holding means (166) arranged in the first region (262) of the recess (260) at the back side wall (16d), which holding means (166) is configured to clamp the first conduit (14a) of the connector (14) when said first conduit (14a) is arranged in the first region (262) of the recess (260), wherein said holding means (166) comprises a slot (166a) into which the first conduit (14a) can be pushed so that the first conduit (14a) is blocked, and/or wherein the body (16) comprises a holding means (166) arranged in the second region (263) of the recess (260) at the back side wall (16d), which holding means (166) is configured to clamp the second conduit (14b) or said at least one conduit (14aa) of the connector (14) when said second conduit (14b) or said at least one conduit (14aa) is arranged in the second region (263) of the recess (260), and wherein said holding means (166) comprises a slot (166b) into which the second conduit (14b) or said at least one conduit (14aa) can be pushed so that the second conduit (14b) or said at least one conduit (14aa) is blocked.

22. The removable unit according to claim 16 or according to one of the claims 17 to 21 when referring to claim 16, characterized in that the body (16) comprises a first and a second latching nose (167a 167b) at the first region (262) of the recess (260), wherein the respective latching nose (167a 167b) is configured to engage an associated actuating member (200, 300) of the apparatus (2) so as to hold the respective actuating member (200, 300) in a pressed position, and/or wherein the body (16) comprises a third latching nose (167c) at the second region (263) of the recess (260), wherein said third latching nose (167c) is configured to engage an associated actuating member (400) of the apparatus (2) so as to hold said actuating member (400) in a pressed position.

23. The removable unit according to claim 14 and according to one of the claims 16 to 22, characterized in that the removable unit (1) comprises a drip pan (360) that protrudes from the front side wall (16c) of said body (16) and is arranged below the end region (261) of the recess (260) as well as below the first port (18) to receive spilled fluid, wherein said drip pan (360) comprises a plurality of dents (363) for receiving spilled fluid.

24. The removable unit according to claim 23, characterized in that the drip pan (360) comprises a centering means (361) in the form of a recess for receiving a guiding pin (361a) of the apparatus (2).

25. The removable unit according to one of the preceding claims, characterized in that the body (16) comprises a material or is formed out of a material that comprises a Shore hardness in the range from 60 A to 100 A, particularly 70 A to 90 A, particularly 80 A.

26. The removable unit according to one of the preceding claims, characterized in that the body (16) comprises a material or is formed out of a material, which material is one of: polypropylene (PP); acrylonitrile butadiene styrene (ABS); a mixture of polycarbonate (PC) and acrylonitrile butadiene styrene (ABS).

27. A tubular fitting (24) for use with a removable unit (1), particularly a removable unit according to one of the preceding claims, wherein the tubular fitting (24) is configured to be received by an opening (46) of a body (44) of a holder assembly (28) of said apparatus (2), and wherein the tubular fitting (24) comprises an opening (24c).

28. The tubular fitting (24) according to claim 27, characterized in that the tubular fitting (24) is configured such that an end cap (22) can be fastened to the tubular fitting (24) by plugging the end cap (22) into said opening (24c), and wherein the tubular fitting (24) is configured such that an end cap (22) can be unfastened from the tubular fitting (24) by pulling the end cap (22) out of said opening (24c).

29. The tubular fitting (24) according to claim 27 or 28, characterized in that the tubular fitting (24) is configured such that a connector (14) can be connected to the tubular fitting (24) by plugging the connector (14) into said opening (24c) of the tubular fitting (24), and wherein the tubular fitting (24) is configured such that a connector (14) can be disconnected from the tubular fitting (24) by pulling the connector (14) out of said opening (24c) of the tubular fitting (24).

30. The tubular fitting according to one of the claims 27 to 29, characterized in that the tubular fitting (24) is formed as an adapter, which comprises a first recess (600) at a first end of the adapter (24b), which first recess (600) comprises an internal thread (602) configured to be rotationally fastened to an external thread (603) of a first portion (24a) of a catheter, and wherein the adapter (24b) comprises a shroud (607) at an opposite second end of the adapter (24b), which shroud (607) surrounds a second recess (609) of the adapter (24b) into which a protrusion (610) of the adapter (24b) protrudes, which protrusion (610) comprises said opening (24c) of the adapter (24b) such that the shroud (607) surrounds said protrusion (610) and said opening (24c) of the adapter (24b), wherein the shroud (607) is coaxially arranged with respect to said protrusion (610).

31. The tubular fitting (24) according to claim 27, characterized in that the tubular fitting (24) comprises a first portion (24a) and an adjacent second portion (24b) comprising said opening (24c).

32. The tubular fitting (24) according to claim 31, characterized in that the second portion (24b) is configured such that an end cap (22) can be fastened to the second portion (24b) by plugging the end cap (22) into said opening (24c) of said second portion (24b), and wherein the second portion (24b) is configured such that an end cap (22) can be unfastened from the second portion (24b) by pulling the end cap (22) out of said opening (24c).

33. The tubular fitting (24) according to claim 31 or 32, characterized in that the second portion (24b) is configured such that a connector (14) can be connected to the second portion (24b) by plugging the connector (14) into said opening (24c) of said second portion (24b), and wherein the second portion (24b) is configured such that a connector (14) can be disconnected from the second portion (24b) by pulling the connector (14) out of said opening (24c).

34. The tubular fitting according to one of the claims 27 to 33, characterized in that the tubular fitting (24) comprises a removable clamp (800) for arresting the connector (14) with respect to the tubular fitting (24) when the connector (14) is connected to the tubular fitting (24), wherein particularly the clamp (800) is configured to be connected to the tubular fitting (24), particularly by means of a clip-on connection, wherein particularly the clamp (800) encompasses the tubular fitting (24) when it is connected to the tubular fitting (24).

35. The tubular fitting (24) according to one of the claims 31 to 34, characterized in that the second portion (24b) is formed as an adapter, which comprises a first recess (600) at a first end of the adapter (24b), which first recess (600) comprises an internal thread (602) configured to be rotationally fastened to an external thread (603) of the first portion (24a), and wherein the adapter (24b) comprises a shroud (607) at an opposite second end of the adapter (24b), which shroud (607) surrounds a second recess (609) of the adapter (24b) into which a protrusion (610) of the adapter (24b) protrudes, which protrusion (610) comprises said opening (24c) of the adapter (24b) such that the shroud (607) surrounds said protrusion (610) and said opening (24c) of the adapter (24b), wherein the shroud (607) is coaxially arranged with respect to said protrusion (610).

36. The tubular fitting (24) according to one of the claims 31 to 34, characterized in that the second portion (24b) is integrally connected to first portion (24a), wherein preferably the second portion (24b) comprises a shroud (607), which shroud (607) surrounds a recess (609) of the second portion (24b) into which a protrusion (610) of the second portion (24b) protrudes, which protrusion (610) comprises said opening (24c) of the second portion (24b) such that the shroud (607) surrounds said protrusion (610) and said opening (24c) of the second portion (24b), wherein the shroud (607) is coaxially arranged with respect to said protrusion (610).

37. The tubular fitting (24) according to claims 34 and according to one of the claim 30, 35, or 36, characterized in that the clamp (800) covers a portion of the shroud (607) and of said opening (14c) when the clamp (800) is connected to the tubular fitting (24), wherein the clamp (800) is configured to engage behind a portion of the connector (14) when the connector is connected to the tubular fitting (24) so that the connector cannot be disconnected from the tubular fitting (24).

38. The tubular fitting (24) according to one of the claims 34 to 37, characterized in that the clamp (800) is configured to be connected to the tubular fitting (24) and/or removed from the tubular fitting (24) when the tubular fitting is arranged in a holder assembly (28) of an apparatus (2) to which said removable unit (1) is connected.

39. The tubular fitting (24) according to one of the claims 34 to 38, characterized in that the clamp comprises two arms (801) extending from a base (802) of the clamp (800) for encompassing the tubular fitting (24).

40. The tubular fitting (24) according to one of the claims 34 to 39, characterized in that the clamp (800) comprises a protrusion (804) for insertion into a circumferential groove (805) of the tubular fitting (24) when the clamp (800) is connected to the tubular fitting (24).

41. The tubular fitting (24) according to claim 39 or according to claim 40 when referring to claim 39, characterized in that the clamp (800) comprises a flap (806) for removing the clamp (800) from the tubular fitting (24), which flap is connected to the base (802), particularly via a hinge (807), wherein particularly, for forming said hinge (807), the clamp comprises a through-hole (803) arranged between the base (802) and the flap (806).

42. A removable clamp (800) for arresting a connector (14) with respect to a tubular fitting (24) when the connector (14) is connected to the tubular fitting (24), wherein particularly the removable clamp (800) is configured to be connected to the tubular fitting (24), particularly by means of a clip-on connection, wherein particularly the clamp (800) encompasses the tubular fitting (24) when it is connected to the tubular fitting (24).

43. The removable clamp (800) according to claim 42, characterized in that the clamp (800) is configured to cover a portion of a shroud (607) and of an opening (24c) of the tubular fitting (24) when the clamp (800) is connected to the tubular fitting (24), wherein the clamp (800) is configured to engage behind a portion of the connector (14) when the connector (14) is connected to the tubular fitting (24) and plugged into said opening (24c), so that the connector (14) cannot be disconnected from the tubular fitting (24).

44. The removable clamp (800) according to claim 42 or 43, characterized in that the clamp (800) is configured to be connected to the tubular fitting (24) and/or removed from the tubular fitting (24) when the tubular fitting (24) is arranged in a holder assembly (28) of an apparatus (2).

45. The removable clamp (800) according to one of the claims 42 to 44, characterized in that the clamp (800) comprises two arms (801) extending from a base (802) of the clamp (800) for encompassing the tubular fitting (24).

46. The removable clamp (800) according to one of the claims 42 to 45, characterized in that the clamp (800) comprises a protrusion (804) for insertion into a circumferential groove (805) of the tubular fitting (24) when the clamp (800) is connected to the tubular fitting (24).

47. The removable clamp (800) according to claim 45 or according to claim 46 when referring to claim 45, characterized in that the clamp (800) comprises a flap (806) for removing the clamp (800) from the tubular fitting (24), which flap is connected to the base (802), particularly via a hinge (807), wherein particularly, for forming said hinge (807), the clamp (800) comprises a through-hole (803) arranged between the base (802) and the flap (806).

48. An end cap (22) for use with a tubular fitting (24) and a removable unit (1), which end cap (22) is configured to be connected to the tubular fitting (24) so as to close the tubular fitting (24).

49. The end cap (22) according to claim 48, characterized in that the end cap (22) comprises a protrusion (22a) having a broadened head (22b) that is configured to engage behind an edge (18a) of a first port (18) of the removable unit (1), so that the tubular fitting (24) can be pulled off the end cap (22) when the end cap (22) has its head (18b) engaged with said edge (18a) of the first port (18).

50. The end cap (22) according to one of the claims 48 to 49, characterized in that the end cap (22) comprises a flexible means (25), particularly a sponge (25), that carries an anti-bacterial agent or fluid.

51. The end cap (22) according to one of the claims 48 to 50, characterized in that the end cap (22) comprises a disinfectant, wherein particularly said end cap (22) is at least partially or completely formed out of said disinfectant, or comprises a coating comprising said disinfectant.

52. The end cap (22) according to one of the claims 48 to 51, characterized in that the end cap (22) is formed out of a thermoplastic elastomer or comprises a thermoplastic elastomer, wherein particularly said thermoplastic elastomer comprises a Shore hardness in the region from 60 A to 100 A, particularly 70 A to 90 A, particularly 80 A.

Description

[0146] The foregoing and other aspects and features of the disclosure will become apparent to those of reasonable skill in the art from the following detailed description, as considered in conjunction with the accompanying drawings.

[0147] FIG. 1 shows a perspective view of a removable unit according to the invention,

[0148] FIG. 2 shows a plan view onto a removable unit according to the invention,

[0149] FIG. 3 shows a lateral view onto a removable unit according to the invention,

[0150] FIG. 4 shows a perspective view onto the removable unit of FIG. 1 wherein the second port (receptacle) is closed with a peel-off seal,

[0151] FIG. 5A to 5F show an end cap that can be stored in the second port,

[0152] FIG. 6 shows an exploded view of the removable unit of FIG. 4,

[0153] FIGS. 7 to 9 show a tubular fitting according to the invention comprising a removable clamp,

[0154] FIG. 10 shows a perspective view of an apparatus for connecting/disconnecting a tubular fitting and a connector that is equipped with a removable unit according to the present invention, and

[0155] FIG. 11A to 11C show a further connector which comprises only a single conduit (e.g. for APD).

[0156] FIG. 1 shows together with FIGS. 2 to 6 a removable unit 1 for an apparatus 2 for connecting and disconnecting a tubular fitting 24 to a connector 14. An example of such an apparatus 2 in shown in FIG. 10, where the removable unit 1 is connected to a moveable carrier 12a of the apparatus 2.

[0157] According to FIGS. 1 to 3, the removable unit 1, which is configured to be discarded after e.g. a single use comprises a body 16 having: a first port 18 and a second port 20, wherein each of said ports are configured for receiving an end cap 22 of the tubular fitting 24, and a connector holder 26 being disposed between said first and second ports 18, 20, and configured for accommodating insertion of the connector 14. An embodiment of such an end cap 22 is shown in FIGS. 5A to 5F. Particularly, the end cap 22 comprises a protrusion 22a having a broadened head 22b (cf. FIGS. 5E and 5F) that is configured to engage behind an edge 18a of the first port 18, so that the tubular fitting 24 can be pulled off an end cap 22 when the latter has its head 18b engaged with said edge 18a of the first port 18. Further, particularly, in an embodiment, the end cap 22 comprises an inner protrusion 22c for receiving the protrusion 610 of the tubular fitting 24 (cf. FIGS. 7 to 9 and description below).

[0158] Further, FIGS. 7 to 9 show a typical tubular fitting 24 that is used with the removable unit 1/apparatus 2.

[0159] Particularly, in order to remove the removable unit 1 from the carrier 12a and a surrounding housing 40 comprising a bottom 42b to which the carrier 12a is mounted and an (e.g. transparent) cover 42 in an easy manner, said body 16 of the removable unit 1 (which may also be denoted as a consumable in the framework of the present invention) is configured to be connected to said apparatus 2 in a releasable fashion, e.g. by means of a latching connection that can be manually established or released.

[0160] As already indicated above, the removable unit 1 is designed for a single use comprising unfastening an end cap 22 from the tubular fitting 24, connecting the connector 14 inserted into the connector holder 26 of the removable unit 1 to the tubular fitting 24, disconnecting the connector 14 from the tubular fitting 24, and fastening an end cap 22 received in the second port 20 to the tubular fitting 24. These basic steps will be described in more detail below (see also above).

[0161] As indicated in FIG. 6, the removable unit 1 comprises an end cap 22 for closing the tubular fitting 14 after use, which end cap 22 replaces an old end cap 22 that has been unfastened from the tubular fitting 24 before. According to FIG. 6, the fresh and particularly sterile end cap 22 for replacement is arranged in a receptacle 20a that is formed by the second port 20, wherein said end cap 22 is completely arranged in said receptacle 20a.

[0162] Furthermore, in order to protect the end cap 22 in said receptacle 20a, said receptacle 20a is closed, particularly hermetically closed, by a closure 23 that is shown in FIGS. 4, 6, and 10. Particularly, the closure 23 comprises a peel-off seal (e.g. foil) 23a, which peel-off seal 23a is attached to a circumferential face side 20b of the second port 20 (cf. FIG. 1). Further, said closure 23 comprises a flexible strip 23b connected to the peel-off seal 23a, which strip 23b comprises a free end section 23c which is configured to be arranged between the bottom 42b and the cover 42 of the housing 40 of said apparatus 2 such that the free end section 23c of the strip 23b protrudes out of the housing 40 and thus forms a handle (having e.g. a flat circular shape) by means of which the peel-off seal 23a can be peeled off the second port 20 from outside said housing 40 by simply pulling on the free end section 23c (e.g. with two fingers).

[0163] For further protection of the end cap 22, the removable unit 1 can comprise a flexible means 25, particularly a sponge 25, that carries an anti-bacterial agent or fluid, and is in contact with said end cap 22 and also arranged in the receptacle 20a (together with the end cap). Particularly, the flexible means 25 can be inserted into the end cap 22 as shown in FIG. 5A, particularly into said inner cylindrical protrusion 22c of the end cap 22.

[0164] As already indicated above, the body 16 of the removable unit 1 is configured to be connected to said movable carrier 12a of said apparatus 2 (cf. FIG. 10) in a releasable fashion, wherein particularly said carrier 12a is movable with respect to the bottom 42b of the housing 40 of the apparatus 2 so that the removable unit 1 can be moved together with said carrier 12a inside said housing 40 in the different positions P, P, and P that will be described in more detail below with reference to FIGS. 2 and 10.

[0165] Further, the body 16 comprises a top side 16a, wherein two (e.g. circular) through-holes 16b are formed in the body 16 on the top side 16a which are each configured to receive an associated pin 120 that protrudes from said carrier 12a (cf. FIG. 10) when the body 16 is connected to the carrier 12a, wherein particularly a face side of the respective pin 120 is flush with the top side 16a when the removable unit 1 is connected properly to the carrier 12a of the apparatus 2.

[0166] Furthermore, in order to have the connector 14 inserted correctly, the top side 16a comprises a through-hole 168a (e.g. having a contour in the form of a frangible inline seal) which indicates the position of a frangible inline seal 168 of a first conduit 14a of the connector 14.

[0167] Particularly, for establishing said releasable connection between the body 16 and the carrier 12a, the body 16 comprises two opposing internal surfaces 160 (cf. schematic detail of FIG. 1 in dashed circle) wherein said internal surfaces face each other, and wherein a latching means 161, particularly a latching nose, is provided on each internal surface for engaging with a complementary latching means, particularly a recess 161a, of the carrier 12a.

[0168] Further, the body 16 comprises a front side wall 16c which faces a tubular fitting 24 that shall be connected to the connector 24 or disconnected from the connector 14 and an opposing back side wall 16d (cf. e.g. FIG. 1) via which the conduits 14a, 14b of the connector 14 exit the apparatus 2.

[0169] Furthermore, the connector holder 26 comprises a recess 260 (cf. e.g. FIG. 2) for receiving the connector 14 as shown in FIG. 10, which recess 260 is arranged on the top side 16a of the body 16 and extends from the front side wall 16c to the back side wall 16d of the body 16.

[0170] Particularly, said recess 260 for receiving the connector 14 comprises an end region 261 extending from the front side wall 16c in the direction of the back side wall 16d, which end region 261 then branches out into a first and a second region 262, 263 of the recess 260 that extend from said end region 261 to the back side wall 16d, respectively.

[0171] As can be seen in FIG. 1, at least a portion of the end region 261 of the recess 260 is surrounded by a slight (rounded) protrusion 266 on the top side 16 a on either side of said portion of the end region 261. This protrusion 266 helps the user to place/insert the connector 14 correctly into the recess 260.

[0172] Particularly, the Y-shape of the recess 260 allows insertion of a Y-shaped connector 14 (cf. FIG. 10) into the single regions 261, 262, 263 of the recess 260, which connector 14 comprises a first conduit 14a and a second conduit 14b, wherein the two conduits 14a, 14b branch off from an end section 14c of the connector 14, via which end section 14c the connector 14 is configured to be connected to said tubular fitting 24, wherein the end region 261 is configured to receive said end section 14c of the connector 14, and wherein the first region 262 is configured to receive the first conduit 14a, and wherein the second region 263 is configured to receive the second conduit 14b.

[0173] Alternatively, as shown in FIGS. 11A to 110, (e.g. in case of APD), the connector comprises only a single conduit 14aa connected to the end section 14c of the connector 14, which single conduit 14aa is configured to be arranged in the second region 263.

[0174] For properly holding the connector 14 in the recess 260, the connector holder/recess 260 comprises a plurality of holding means, which will be described in more detail in the following.

[0175] Particularly, as shown in FIGS. 1 and 2, the removable unit 1 comprises an e.g. U-shaped protrusion 162 protruding from the front side wall 16c and extending along the end region 261 of the recess 260 on the front side wall 16c, wherein said protrusion 162 is configured to an inclination of the end section 14c of the connector 14 with respect to an axial direction A of the end section 14c when said end section 14c is inserted in said end region 261 of the recess 260, particularly said protrusion 162 comprises two opposing parallel sections 162a that are integrally connected by a lower curved section 162b which parallel sections 162a and curved section 162b are configured to butt against said end section 14c in a form fitting manner to prevent said inclination.

[0176] Further, according to an embodiment, the end region 261 of the recess 260 may comprise an (e.g. rectangular) cross sectional contour 260c in a plane perpendicular to said axial direction A, wherein the end section 14c of the connector 14 comprises a shape in the region of said contour 260c so that the connector 14 cannot be rotated about the axial direction A when it is inserted into the recess 260. Particularly said shape of the connector 14 may be formed by four wings 144 that protrude from the end section 14c and engage with said contour 260c of the recess 260.

[0177] Further, the body 16 comprises two holding means 163 arranged on the top side 16a of the body 16, wherein the two holding means 163 are arranged on opposing side walls 261a, 261b of the end region 261 of the recess 260 for holding the end section 14c of the connector 14 in place in the end region 261 of the recess 260 when said end section 14c is arranged in said end region 261 of the recess 260.

[0178] Particularly, each of said two holding means 163 comprises a free end, wherein the respective free end protrudes past the associated side wall 261a, 261b of the end region 261 of the recess 260, which two side walls 261a, 261b of said end region 261 of the recess 260 face each other. Thus, the fee ends of the holding means 162 can engage over an end section 14c of the connector 14 that is inserted into the end region 261 of the recess 260 to hold the end section 14c in place in the recess 260.

[0179] Furthermore, particularly, the body 16 comprises two holding means 164, wherein each of said holding means 164 forms a tooth structure 164, and wherein the respective tooth structure protrudes from an associated sidewall 261a, 261b of the end region 261 of the recess 260, wherein said two sidewalls 261a, 261b, and tooth structures 164 face each other. Thus, the tooth structures 164 can clamp the end section 14c of the connector from both sides and are thus configured to prevent a movement of the end section 14c of the connector 14 in an axial direction A when said end section 14c of the connector 14 is arranged in said end region 261 of the recess 260 and a force pulls said end section 14 in said axial direction A and into the teeth of the tooth structures 164. Other abrasive structures may also be used.

[0180] Furthermore, the body 16 comprises a holding means 165 arranged in the first region 262 of the recess 262, which holding means 165 is configured to clamp the first conduit 14a of the connector 14 when said first conduit 14a is arranged in the first region 262 of the recess 260 to hold the first conduit 14a in place, particularly without hindering fluid flow through the first conduit 14a. Particularly said holding means 165 comprises a curved edge for tightly encompassing the first conduit 14a.

[0181] In the same manner, the body 16 particularly comprises another holding means 165 arranged in the second region 263 of the recess 260, which holding means 165 is in turn configured to clamp the second conduit 14b of the connector 14 (or said single conduit 14aa, cf. FIGS. 11A to 11C) when said second conduit 14b is arranged in the second region 263 of the recess 260 to hold the second conduit 14a in place, particularly without hindering fluid flow through the first conduit 14a. Particularly, also here, said holding means 165 comprises a curved edge for tightly encompassing the second conduit 14b.

[0182] Furthermore, particularly, the body 16 comprises a holding means 166 arranged in the first region 262 of the recess 260 at the back side wall 16d, which holding means 166 is configured to clamp the first conduit 14a of the connector 14 when said first conduit 14a is arranged in the first region 262 of the recess 260, wherein particularly said holding means 166 is configured to encompass said first conduit, e.g. by means of a curved edge for tightly encompassing the first conduit 14a. Further, said holding means 166 comprises a slot 166a extending from said edge into which slot 166a the first conduit 14a can be pushed so that the first conduit 14a is blocked for the passage of fluid through the first conduit 14a.

[0183] Likewise, the body 16 further comprises such a holding means 166 arranged in the second region 263 of the recess 260 at the back side wall 16d, which holding means 166 is in turn configured to clamp the second conduit 14b of the connector 14 when said second conduit 14b is arranged in the second region 263 of the recess 260, particularly by means of a curved edge for tightly encompassing the second conduit 14b. Also here said holding means 166 of the second region 263 comprises a slot 166b extending from said edge, into which slot the second conduit 14b can be pushed so that the second conduit 14b is blocked for the passage of fluid through the second conduit 14b.

[0184] The actuating members 200, 300, 400 (cf. FIG. 10) by means of which the frangible seal 168 can be broken and the conduits 14a, 14b can be blocked will be described in detail below.

[0185] Furthermore, the body 16 comprises a first and a second latching nose 167a 167b at the first region 262 of the recess 260, wherein the respective latching nose 167a 167b is configured to engage an associated (first and second) actuating member 200, 300 of the apparatus 2 so as to hold the respective actuating member 200, 300 in a pressed position. Particularly the first latching nose 167a is configured to engage with a first actuating member 200 of the apparatus 2 that is configured to break said frangible inline seal 168 of the first conduit 14a and to keep the first conduit 14a open for the passage of fluid, and wherein particularly the second latching nose 167b is configured to engage with a second actuating member 300 of the apparatus 2 that is configured to press the first conduit 14a in said slot 166a.

[0186] Furthermore, the body 16 comprises a third latching nose 167c at the second region 263 of the recess 260, wherein said third latching nose 167c is configured to engage an associated third actuating member 400 of the apparatus 2 so as to hold said third actuating member 400 in a pressed position. Particularly, the third latching nose 167c is configured to engage with said third actuating member 400 of the apparatus 2 that is configured to press the second conduit 14b in said slot 166b.

[0187] Furthermore, in order to protect the apparatus from spilled fluid from the fluid lines that are connected or disconnected by means of the apparatus 2, the removable unit comprises a drip pan 360 that protrudes from the front side wall 16c of said body 16 and is arranged below the end region 261 of the recess 260 as well as below the first port 18 to receive said leakage fluid. Preferably, said drip pan 360 comprises a plurality of dents 363 for receiving said spilled fluid. Which plurality of dents 363 allows to hold and calm the leakage fluid.

[0188] Furthermore, the body 16 may comprise a centering means 361 for guiding a movement of the removable unit 1 in the axial direction A, which centering means 361 is arranged (at least in sections) on the drip pan 360. Particularly, said centering means 361 is formed as a recess 361 of the drip pan 360 for receiving a guiding means, particularly a guiding pin 361a of the apparatus 2, which guiding pin 361a is schematically indicated in FIG. 1).

[0189] The drip pan 360 preferably comprises a recess 362 that extends parallel to the recess 361 and allows to arrange the removable unit 1 on the carrier 12a in the first position P (this recess 362 then receives the guiding pin 361a).

[0190] Furthermore, FIGS. 7 to 9 show an embodiment of a tubular fitting 24 for use with a removable unit 1/apparatus 2 according to the invention, wherein the tubular fitting 24 is configured to be received by an opening 46 of a body 44 of a holder assembly 28 of said apparatus 2 as indicated in FIG. 10.

[0191] As shown in FIGS. 7 to 9, the tubular fitting 24 comprises a first portion 24a and an adjacent second portion 24b comprising an opening 24c. Particularly, the second portion 24b is configured such that an end cap 22 according to the present invention can be fastened to the second portion 24b by plugging the end cap 22 into said opening 24c of said second portion 24b, and wherein the second portion 24b is configured such that an end cap 22 can be unfastened from the second portion 24b by pulling the end cap 22 out of said opening 24c. Please note that an end cap 22 is not shown in FIGS. 7 to 9, but can replace the connector 14 shown in FIGS. 7 to 9 when the connector is removed from the tubular fitting 24.

[0192] Further, particularly, the second portion 24b is configured such that the connector 14 can be connected to the second portion 24b by plugging the connector 14 into said opening 24c of said second portion 24b, and wherein the second portion 24b is configured such that a connector 14 can be disconnected from the second portion 24b by pulling the connector 14 out of said opening 24c.

[0193] Furthermore, the tubular fitting 24 comprises a removable clamp 800 (cf. e.g. FIGS. 7 and 8) for arresting the connector 14 with respect to the second portion 24b when the connector 14 is connected to the second portion 24b, wherein particularly the clamp 800 is configured to be connected to the second portion 14b, particularly by means of a clip-on connection, wherein particularly the clamp 800 encompasses the second portion 24b when it is connected to the second portion 24b.

[0194] For this, the clamp 800 preferably comprises curved arms 801 (cf. also FIGS. 11A to 11C) extending from a base 802 of the clamp 800 in a peripheral direction of the second portion 24b for tightly encompassing the second portion 24b which establishes the clip-on connection.

[0195] Furthermore, the clipped-on clamp 800 covers a portion of the shroud 607/opening 24c and of said opening 24c when the clamp 800 is connected to the second portion 24b, wherein the clamp 800 is configured to engage behind a portion of the connector 14 when the connector 14 is connected to the second portion 24b so that the connector 14 cannot be disconnected from the second portion 24b.

[0196] Furthermore, for defining a location of the clamp 800 on the second portion 24b, the clamp 800 comprises a protrusion 804 for insertion into a circumferential groove 805 of the second portion 24b when the clamp 800 is connected to the second portion 24b.

[0197] Further, the clamp 800, comprises a through-hole 803 in a region where the arms 801 project from the base 802, such that a flap 806 is formed that is hinged to the base 802 in a flexible manner (e.g. via integral hinges 807 on either side of the hole 803). This allows to remove the clamp 800 manually from the tubular fitting 24 by lifting the flap 806 away from the fitting 24.

[0198] As shown in FIGS. 7 to 9 the second portion 24b is formed as an adapter (or the tubular fitting 24 is formed as an adapter when the first portion 24a is not considered as a component of the tubular fitting/adapter 24, but as a part of a catheter etc.), which comprises a first recess 600 at a first end of the adapter 24b, which first recess 600 comprises an internal thread 602 configured to be rotationally fastened to an external thread 603 of the first portion 24a, and wherein the adapter 24b comprises a shroud 607 at an opposite second end of the adapter 24b, which shroud 607 surrounds a second recess 609 of the adapter 24b into which a protrusion 610 of the adapter 24b protrudes, which protrusion 610 comprises said opening 24c of the adapter 24b such that the shroud 607 surrounds said protrusion 610 and said opening 24c of the adapter 24b, wherein the shroud 607 is coaxially arranged with respect to said protrusion 610.

[0199] Alternatively, the first and second portion 24a, 24b may be integrally connected to one another.

[0200] FIG. 10 shows the removable unit 1 when installed into the apparatus 2. As shown in FIG. 10 the apparatus 2 comprises a means for operating said cradle assembly 12, which means may comprise an actuating means 702 that may comprise a handle 703 that is accessible from outside said housing 40 of the apparatus 2 so that said cradle assembly 12, particularly the removable unit 1 is reciprocable (or can be moved back and forth) in a (transverse) first direction D (cf. FIGS. 1 and 2) relative to said holder assembly 28 between a first position P, a second position P, and a third position P. These positions with respect to the tubular fitting 24 that is inserted into the holder assembly 28 are indicated in FIG. 2 with arrows.

[0201] The cradle assembly 12 may be guided by a guiding means and said means for operating the cradle assembly 12 may be configured to e.g. mechanically transform a force on an actuating element 702 comprising particularly a handle 703 for manual actuation of a user into a linear movement of the cradle assembly 12 (and particularly holder assembly 28) between the positions P, P, and P. Means 30 may also comprise a drive such as an (e.g. electrical) motor 31, particularly for moving the cradle assembly 12 between said positions P, P, P. The actuating element 702, 703 may then be configured for triggering said drive.

[0202] Further, said holder assembly 28 includes a body 44 having an opening 46 for receiving the tubular fitting 24. The tubular fitting 24 may comprise recesses for engaging with the body 44 in the region of said opening 46 of the body 44. Further, particularly when the holder assembly 28 is non-moving, the tubular fitting 24 can be allowed to slide back and forth in the opening 46 in the axial direction A. However, in the embodiment shown in FIG. 10, the tubular fitting 24 cannot move in the axial direction A with respect to the holder assembly 28.

[0203] Furthermore, as indicated in FIG. 2, the cradle assembly 12/removable unit 1 is configured to be movable in each of said positions P, P, P towards and away from the holder assembly 28 by means of said means for operating the cradle assembly (e.g. by using said actuating means 702 and particularly handle 703) in a second direction D running perpendicular to said first direction D. Other ways of actuation are also conceivable.

[0204] Particularly, when the cradle assembly 12/removable unit 1 is in the first position P, as indicated in FIG. 2, the cradle assembly 12 is movable away from the holder assembly 28 (cf. FIG. 10), so as to unfasten an end cap 22 received in the first port 18 that is fastened to the tubular fitting 24 from said tubular fitting 24, which in turn is inserted into the holder assembly 28, namely in the corresponding opening 46 (cf. FIG. 10).

[0205] From there, the cradle assembly 12/removable unit 1 is moveable into the second (transverse) position P as well as towards the holder assembly 28 so as to connect a connector 14 inserted into the connector holder 26/recess 260 to the tubular fitting 24 so that a flow connection can be established between the tubular fitting 24 and the connector 14. When the fluid delivery procedure (which will be described below) is over, the cradle assembly 12/removable unit 1 is moveable away from the holder assembly 28 as indicated by the arrow D shown in FIG. 2, so as to disconnect the connector 14 from the tubular fitting 24.

[0206] As further shown in FIG. 10, the apparatus 2 comprises an openable or removable cover 42 of the housing 40. The cover 42 is preferably at least partially or completely transparent, particularly so as to be able to observe the fastening/unfastening of the end caps 22 and the connecting of the tubular fitting 24 to the connector 14 as well as the disconnecting of the tubular fitting 24 from the connector 14.

[0207] Further, the holder assembly 28 may be configured to let the tubular fitting 24 move or slide with the cradle assembly 12/removable unit 1 when the cradle assembly 12 is in the second position, such that a member 240 of the tubular fitting 24 protrudes at least partially out of the housing 40 (this member 240 is also shown in FIGS. 27 and 28), e.g. through a through hole 41 formed in the housing 40. Thus, the member 240 is accessible from outside the housing 40 when the tubular fitting 24 is connected to the connector 14 so that the tubular fitting 24 can be opened (e.g. by rotating member 240) and fluid can pass the tubular fitting 24. However, here, particularly, the tubular fitting 24 is non-moving in the axial direction A and said member 240 protrudes out of the housing 40 regardless of the position/movement of the removable unit 1.

[0208] Further, as indicated in FIG. 2, when the cradle assembly 12/removable unit 1 is in the second position P and is moved away from the holder assembly 28, the tubular fitting 24 may also move with the cradle assembly 12 in the beginning so that said member 240 is again positioned inside a compartment defined by the housing 40 and cannot be rotated from outside the housing 40 to ensure that the tubular fitting 24 that has been closed by means of member 240 before disconnecting the tubular fitting 24 from the connector 14 cannot be opened again so that fluid can be lost.

[0209] Further, from the second position shown in FIG. 2, the cradle assembly 12 is movable into the third position P and towards the holder assembly 28 so that a new end cap 22 that is arranged in the second port 20 can be fastened to the tubular fitting 24. In this position, the member 240 protrudes again or still out of the housing 40 through opening 41.

[0210] Before the new end cap 22 can be fastened to the tubular fitting 24, the peel-off seal 23a described above is removed from the receptacle 20a so that the end cap 22 is accessible for a connection with the tubular fitting 24 (see also above).

[0211] Furthermore, for operating the connector 14, the apparatus 2 comprises said recess 260 formed on the top side 16a of the body 16 of the removable unit 12.

[0212] When the tubular fitting 24 has been connected to the connector 14 as intended (e.g. FIG. 10), the first actuating member 200 is pressed via a button 201 so that said frangible inline seal 168 is broken.

[0213] This allows flushing of the conduits 14a, 14b while the tubular member 24 is still closed. Thus fluid (e.g. from a fluid bag) enters the first conduit 14a, is passed into the second conduit 14b and ends up e.g. in a fluid waste bag connected to the second conduit 14b.

[0214] When the conduits 14a, 14b have been flushed, a third actuating member 400 is pressed via a button 401 so as to interrupt the passage of fluid through the second conduit 14b arranged in the second region 262 of the recess 260 of the removable unit 1. To accomplish this, the third actuating member 400 is configured to press the second conduit 14b into the associated slot 166b so that the second conduit 14b is compressed and thereby sealed in the slot 166b. Now, the member 240 is actuated and fluid passes from the first conduit 14a via the tubular fitting 24 to a catheter of the patient.

[0215] Finally, to end fluid delivery, the member 240 is actuated to close the tubular fitting 24 and a second actuating member 300 (cf. FIG. 10) is pressed via a button 301 so as to interrupt the passage of fluid through the first conduit 14a being arranged in the first region 262 of the recess 260. Again, to accomplish this, the second actuating member 300 is configured to press the first conduit 14a into the associated slot 166a so that the first conduit 14a is compressed and thereby sealed in the slot 166a.

[0216] Now, the connecter 14 can be disconnected from the tubular fitting 24 and a new end cap 22 received in the second port 20 can be fastened to the tubular fitting 24 as described above.

[0217] It is to be noted, that the actuating members 200, 300, 400 are preferably mounted such to the housing 40 or with respect to the recess 260 of the cradle assembly 12/removable unit 1 that the cradle assembly 12 can move relative to the actuating members 200, 300, 400, but the latter are able to engage with the respective conduit 14a, 14b as described above, when the cradle assembly 12 resides in the second position P and has been moved towards the holder assembly 28 so that the connector 14 is properly connected to the tubular fitting 24.

[0218] Preferably, the buttons 201, 301, 401 are labeled by means of a pictogram, respectively, so as to describe their specific function to a user. This allows a description of the function of the buttons 201, 301, 401 that is independent of any language and universally understandable. The buttons may also be labeled by means of numbers that indicate the order of operation of the buttons.

[0219] Most preferably, in the framework of the present invention as described herein, the connecting and/or disconnecting of connector 14 and tubular fitting 24 (as well as recapping) is performed by one of: a patient using the apparatus at home (e.g. a home dialysis patient), by a caregiver using the apparatus at the patient's home or within a health care facility, or by a healthcare professional using the apparatus at the patient's home or in a health care facility.