Source: https://patents.google.com/patent/US8225826
Timestamp: 2018-02-24 20:17:23
Document Index: 72411991

Matched Legal Cases: ['art 3', 'art 502', 'art 503', 'art 503', 'art 502', 'art 503', 'art.\n4', 'art.\n7', 'art.\n11', 'art.\n12', 'art.\n13', 'art.\n18', 'Application No. 2003', 'Application No. 2003']

US8225826B2 - Fluid transfer device - Google Patents
US8225826B2
US8225826B2 US13111640 US201113111640A US8225826B2 US 8225826 B2 US8225826 B2 US 8225826B2 US 13111640 US13111640 US 13111640 US 201113111640 A US201113111640 A US 201113111640A US 8225826 B2 US8225826 B2 US 8225826B2
US13111640
US20110214781A1 (en )
Petri Horppu
A fluid transfer device for transferring fluid from a first fluid container to a second fluid container such as a piercing member protection device. The fluid transfer device can comprise a longitudinal axis A and a first connection part comprising a connector that connects to the first fluid container. The fluid transfer device can further comprise a second connection part rotatably mounted to the first connection part by a mounting element, and the second connection part can further comprise a threaded coupling that connects the second fluid container. The mounting element can enable turning of the second connection part with respect to the first connection part. Such a device can allow a user to safely turn e.g., a syringe after assembly to read a volume indication or similar.
This application is a continuation application of 11/745,702, filed May 8, 2007. The disclosure of the prior application is considered part of (and is incorporated by reference in) the disclosure of this application.
Accordingly, U.S. Pat. No. 4,564,054 (Gustaysson) discloses a fluid transfer device for transferring a substance from one vessel to another vessel while avoiding leakage of liquid and gas contaminants by protecting the piercing member. The disclosed device comprises a first member designed as a hollow sleeve and having a piercing member provided with a passageway. The piercing member is attached to the first member which has a first barrier member at one end just opposite the tip of the piercing member. Thereby, the piercing member can be passed and retracted through the first barrier member which seals one end of the first member. The fluid transfer device further comprises a second member which is attached to or attachable to one of the vessels or to means arranged to communicate therewith. The second member has a second barrier member, and mating connection means arranged on the first and second members for providing a releasable locking of the members with respect to each other. The barrier members are liquid and gas-proof sealing members which seal tightly after penetration and retraction of the piercing member and prevent leakage of liquid as well as gas contaminants. In the connected position of the first and second members, the barrier members are located in such a way with respect to each other that the piercing member can be passed therethrough.
In one embodiment, the fluid transfer device is a piercing member protection device. The piercing member protection device may comprise a piercing member protection part having a protection chamber to protect a piercing member. The piercing member protection device has a secured position, in which at least the tip of said piercing member is enclosed within the protection chamber of the piercing member protection part, so as to prevent the tip of the piercing member from exposure. The piercing member protection device further has an unsecured position, in which the tip of the piercing member is arranged outside the protection chamber of said piercing member protection part.
The first locking means on the fluid transfer device can enable at least a 90° turn, e.g., at least a 180° turn, at least a 270° turn, or at least a 360° turn of the second connection part. The latter first locking means has the advantage of letting an attached second fluid container be turned fully around, giving the user full access to any indications present on the surface of the second fluid container. In one embodiment of the present invention the first locking means connects the first and second connection parts by means of a locking groove and a locking protrusion, such a locking groove is arranged transversally to the longitudinal axis A around the periphery of the first connection part while the locking protrusion is arranged on the second connection part. In an alternative embodiment of the present invention the locking protrusion may be arranged on the second connection part of the fluid transfer device while the locking groove is arranged on the first connection part. In the cases when at least a 90°, 180° or a 270° turn of the fluid transfer device is preferable, the first locking means connects to the first and second connection part by means of a locking groove arranged transversally to the longitudinal axis A around at least a part of the periphery of the connection part.
The locking protrusion may be in the form of a saw tooth element, i.e. a ratchet, which interacts with the locking groove. There can be between 1 to 30 saw tooth elements, e.g., 2 to 10, or 2 to 5 saw tooth elements. The saw tooth elements can be arranged at an angle between 2 to 15°, e.g., 4 to 12°, or 5 to 10° with respect to an axis perpendicular to the longitudinal axis A. Such angle allows for a smooth turning in one direction while still enabling an efficient prevention of turning in the predetermined direction.
In one embodiment of the present invention, the fluid transfer device is equipped with the mentioned piercing member in order to transfer fluid from one fluid container to a second fluid container. This embodiment of the present invention is advantageous because it reduces the amount of occasions in which a user may be exposed to a piercing member. The piercing member might however be arranged on one of the fluid containers which is arranged for connection with the fluid transfer device in order to transfer fluid from the first fluid container to the second fluid container. The fluid transfer device may further comprise a stabilization member arranged to stabilize or guide the piercing member.
Stabilization of the piercing member, regardless of whether it is arranged on the second connection part or an attachable fluid container, is important to prevent the piercing member from breaking or bending. Such a stabilization member can comprise a hollow tube arranged substantially along the longitudinal axis A or parallel thereto, wherein the hollow tube is arranged to at least partly enclose the piercing member. In cases were the piercing member is arranged on a fluid container the stabilization member at least partly enclose the piercing member after assembly.
The first end 11 of the first member 10 can be equipped with a flexible barrier member. It may further be designed and arranged for creating a double-membrane sealing when the connection means 15 is connected to the first container 5. In such case the first container 5 may be e.g., an infusion bag of an infusion system, an infusion fluid line of the mentioned infusion system or a separate spike device exhibiting a flexible barrier member. In some embodiments, the first end 11 of the first member 10 is designed and arranged for all these cases. Double membrane bayonet couplings are known per se from the U.S. Pat. No. 4,564,054 for example and will hereafter not be described in greater detail. As a measure of safety a second flexible barrier member 17 may be provided at the second end 12 of the first member 10. The flexible barrier members 16, 17 are liquid and gas-proof sealing members which seal tightly around the piercing member to prevent leakage of liquid as well as gas contaminants. In cases where the piercing member is arranged on the second connection part 3, it can extend through the second flexible barrier member so its tip 8 is arranged inside protection chamber 9 of the first member 10.
In the illustrated embodiment in FIG. 5, the first locking means 545 comprise a plurality of saw tooth protrusions 547 (as described earlier in FIGS. 1-3). The first connection part 502 comprises an interacting protrusion element such as an interacting saw tooth protrusion (not shown in FIG. 5) which after assembly with the second connection part 503 interacts with the plurality of saw tooth protrusions 547 on the first end 506 of the second connection part 503 so that the second connection part is only able to turn in a clock-wise or an anti clock-wise direction after engagement. Although the first locking means 545 has been described as a protrusion such as a saw tooth protrusion, and interacting protrusion element, it is within the boundaries of the present invention that any means which may provide the desired effect of preventing the first connection part 502 from turning in a predetermined direction (e.g., in a clock-wise direction) with respect to the second connection part 503 may be suitable as first locking means 545 while still allowing it to turn in a direction opposite of the predetermined direction.
The mounting means 544 and the first locking means 545 are in the shown embodiment in FIGS. 1-5 illustrated as separate means. It is within the boundaries of the present invention that the mounting means 544 and the first locking means 545 are integrally formed. The first locking means 545 may for instance be arranged on the mounting means 544.
1. A fluid transfer device for transferring fluid from a first fluid container to a second fluid container, said fluid transfer device comprising a longitudinal axis and a first connection part comprising a connector that connects to said first fluid container, wherein said fluid transfer device further comprises a second connection part rotatably mounted to said first connection part by a mounting element, wherein said second connection part comprises a threaded coupling element that connects to said second fluid container, wherein said fluid transfer device is further arranged with at least one protrusion, wherein said at least one protrusion substantially prevents said first connection part from turning in a predetermined direction with respect to said second connection part thereby enabling assembly with said first fluid container, while still allowing said first connection part to turn in a direction opposite of said predetermined direction thereby preventing disassembly with said first fluid container, wherein said first connection part is provided with a flexible barrier member for providing a leakage seal.
2. A fluid transfer device according to claim 1, wherein said device is a piercing member protection device.
3. A fluid transfer device according to claim 2, wherein said piercing member protection device comprises a piercing member protection part comprising a protection chamber adapted to protect a piercing member, said piercing member protection device having a secured position in which at least the tip of said piercing member is enclosed within said protection chamber of said piercing member protection part so as to prevent said tip of said piercing member from exposure, and an unsecured position in which said tip of the piercing member is arranged outside the protection chamber of said piercing member protection part.
4. A fluid transfer device according to claim 2, wherein said piercing member protection device is a medical piercing member protection device.
5. A fluid transfer device according to claim 1, wherein said at least one protrusion on said fluid transfer device enables at least a 90° turn.
6. A fluid transfer device according to claim 1, wherein said mounting element comprises a locking groove arranged transversally to the longitudinal axis around the periphery of a mounting part that connects to said piercing member protection part.
7. A fluid transfer device according to claim 1, wherein said fluid transfer device further comprises a piercing member.
8. A fluid transfer device according to claim 7, wherein said fluid transfer device further comprises a stabilization member arranged to stabilize said piercing member.
9. A fluid transfer device according to claim 8, wherein said stabilization member comprises a hollow tube arranged along the longitudinal axis or parallel thereto, wherein said hollow tube is arranged to at least partly enclose said piercing member.
10. A fluid transfer device according to claim 9, wherein said at least one protrusion engages at least one interacting protrusion element on said first connection part.
11. A fluid transfer device according claim 1, wherein the first connection part and the second connection part have two positions, one position in which the at least one protrusion is engaged so as to prevent turning of the first connection part with respect to the second connection part in a predetermined direction, and one position in which the first connection part may be turned in any direction with respect to the second connection part.
12. A fluid transfer device according to claim 11, wherein said two positions are enabled by a play between the first connection part and the second connection part.
13. A fluid transfer device according to claim 1, wherein said threaded coupling element on said second connection part interacts with said at least one protrusion so that said predetermined direction in which said first connection part is prevented from turning with respect to said second connection part is the same direction as said second connection part is turned in order to connect a second fluid container thereto.
14. A fluid transfer device according to claim 1, wherein said connector on said first connection part interacts with said at least one protrusion so that said predetermined direction in which said first connection part is prevented from turning with respect to said second connection part is the same direction as said second connection part is turned in order to connect a first fluid container thereto.
15. A fluid transfer device according to claim 1, wherein said connector is a neck element comprising two guiding members.
16. A fluid transfer device according to claim 1, wherein said connector is a threaded coupling.
17. A fluid transfer device according to claim 1, wherein said mounting element comprises a cylinder shaped extension of the first connection part which at least partly encloses the second connection part.
18. A fluid transfer device according to claim 1, wherein said at least one protrusion comprises a plurality of saw tooth protrusions.
19. A fluid transfer device according to claim 1, wherein said at least one protrusion comprises a plurality of sinusoidal shaped protrusions.
20. A fluid transfer device for transferring fluid from a first fluid container to a second fluid container, said fluid transfer device comprising a longitudinal axis and a first connection part comprising a connector that connects to said first fluid container, wherein said fluid transfer device further comprises a second connection part rotatably mounted to said first connection part by a mounting element, wherein said second connection part comprises a coupling element that connects to said second fluid container, wherein said fluid transfer device is arranged with at least one protrusion enabling said first fluid container to be assembled to said fluid transfer device using a turning motion in a first predetermined direction, and that said at least one protrusion is adapted to be disabled during said turning motion thus permitting said first connection part to be turned in any direction with respect to said second connection part.
US13111640 2007-05-08 2011-05-19 Fluid transfer device Active US8225826B2 (en)
US11745702 US7975733B2 (en) 2007-05-08 2007-05-08 Fluid transfer device
US13111640 US8225826B2 (en) 2007-05-08 2011-05-19 Fluid transfer device
US11745702 Continuation US7975733B2 (en) 2007-05-08 2007-05-08 Fluid transfer device
US20110214781A1 true US20110214781A1 (en) 2011-09-08
US8225826B2 true US8225826B2 (en) 2012-07-24
ID=39968448
US11745702 Active 2029-11-20 US7975733B2 (en) 2007-05-08 2007-05-08 Fluid transfer device
US13111640 Active US8225826B2 (en) 2007-05-08 2011-05-19 Fluid transfer device
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