Source: http://www.google.com/patents/US7975733?dq=7,603,356
Timestamp: 2014-03-07 22:39:39
Document Index: 571041007

Matched Legal Cases: ['art 42', 'art 2', 'art 2', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 42', 'art 3', 'art 2', 'art 42', 'art 503', 'art 502', 'art 503', 'art 502', 'Application No. 2003', 'Application No. 2003']

Patent US7975733 - Fluid transfer device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA fluid transfer device for transferring fluid from a first fluid container to a second fluid container such as a piercing member protection device is provided. The fluid transfer device can include a longitudinal axis and a first connection part having a connection means for connecting to a first fluid...http://www.google.com/patents/US7975733?utm_source=gb-gplus-sharePatent US7975733 - Fluid transfer deviceAdvanced Patent SearchPublication numberUS7975733 B2Publication typeGrantApplication numberUS 11/745,702Publication dateJul 12, 2011Filing dateMay 8, 2007Priority dateMay 8, 2007Also published asUS8225826, US20080277021, US20110214781Publication number11745702, 745702, US 7975733 B2, US 7975733B2, US-B2-7975733, US7975733 B2, US7975733B2InventorsPetri Horppu, Anna Ellstr�mOriginal AssigneeCarmel Pharma AbExport CitationBiBTeX, EndNote, RefManPatent Citations (115), Non-Patent Citations (5), Referenced by (11), Classifications (12), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetFluid transfer deviceUS 7975733 B2Abstract A fluid transfer device for transferring fluid from a first fluid container to a second fluid container such as a piercing member protection device is provided. The fluid transfer device can include a longitudinal axis and a first connection part having a connection means for connecting to a first fluid container. The fluid transfer device can further include a second connection part rotatably mounted to the first connection part by mounting means, and the second connection part can further include connection means for connecting a second fluid container. The mounting means 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.
TECHNICAL FIELD The present invention relates to a fluid transfer device and more specifically a piercing member protection device arranged with a first and a second fluid container.
BACKGROUND A serious problem in connection with drug preparation, drug administration and other similar handling is the risk that medical and pharmacological staff are exposed to drugs or solvents which might escape into the ambient air. Medical and pharmacological staff are also frequently exposed to needles, syringes and piercing members in their daily work. Such exposure may lead to accidents such as the staff piercing or scratching themselves. This problem is particularly serious when cytotoxins, antiviral drugs, antibiotics and radiopharmaceuticals are concerned. Other hazardous areas may be sampling taking such as samples concerning virus infections or the like.
SUMMARY It is therefore an object of the present invention to provide a fluid transfer device such as a piercing member protection device which partly or fully reduces the risk of complications during turning of the device or parts attached thereto. The present invention at least partly solves this problem by providing a fluid transfer device such as a piercing member protection device for transferring fluid from a first fluid container to a second fluid container. The fluid transfer device comprises a longitudinal axis A, a first connection part comprising connection means for connecting to the first fluid container. The fluid transfer device further comprises a second connection part rotatably mounted to said first connection part. The second connection part further comprises connection means for connecting the second fluid container. The present invention allows any fluid container attached to the fluid transfer device to be turned easily and safely without complications.
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 by 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.
DEFINITIONS With the term �piercing member� it is meant a substantially hollow object, such as a needle like tube or a needle, which may pierce a membrane or similar in order to withdraw or infuse a gas fluid, a liquid fluid or a mixture thereof (i.e. a fluid). The mentioned membrane may be the skin of a patient or a flexible barrier member on e.g., a vial or on an infusion bag or the like.
With the term �medical� piercing member protection device or �medical� fluid transfer device is meant a device which is used directly or indirectly in the medical field of technology e.g., in hospital environments or hospital like environments, pharmaceutical industry, home care etc. Examples of medical devices are needles, needle like tubes, syringes, infusion bags, medical fluid transfer devices, medical vials, medical fluid containers, medical sampling containers or the like.
With the term �interacting protrusion element� is meant at least one element which interacts with at least one part of the first locking means when said first locking means is in the form of a locking protrusion or a saw tooth arrangement as described. Although a saw tooth may interact with a protrusion, it can likewise interact with a groove. The �interacting protrusion element� is then considered to be the material which fully or partly defines that groove (e.g., the wall of the groove).
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a cross section of a fluid transfer device in the form of a piercing member protection device according to the present invention illustrated in its secured position.
DETAILED DESCRIPTION Generally dependent upon how the first and the second connection part are arranged to interact via the first locking means and the mounting means, the fluid transfer device may display the following functions:
A first locking means 45 is arranged on the mounting part 42. The first locking means 45 is in FIG. 3 a. illustrated as a plurality of saw tooth protrusions 47 which are arranged in a circle around the stabilization member 40. The plurality of saw tooth protrusions 47 interacts with interacting means on the first connection part 2, in the illustrated embodiment the piercing member protection part, so as to allow for a 360� turn of the second connection part in a predetermined direction. The interacting means may as mentioned be interacting saw tooth elements, however, any kind of means able to interact with a saw tooth protrusions 47 in order to allow for a 360� turn of the second connection part 2 in a predetermined direction may be used. The first locking means 45 can be designed for a clock-wise turn or an anti clock-wise turn of the second connection part 3, its however within the boundaries of one embodiment of the present invention that the first locking means 45 allows for a step-wise turning in both a clock-wise and/or an anti clock-wise direction of the second connection part 3. Such step-wise turning is advantageous since it induces a moment of inertia to the second connection part 3 which prevents a connected syringe or similar from turning too easily. The first locking means 45 has in such an embodiment of the present invention a plurality of e.g., sinusoidal shaped protrusions (wave like) more than saw tooth shaped protrusions as described earlier. Of course the piercing member protection part is equipped with corresponding means in order to facilitate such controlled turning of the second connection part.
FIG. 3 b shows the second connection part 3 as seen along the longitudinal axis A. The first locking means 45 circles the stabilization means 40 in order to provide for a 360� turn of the second connection part. The second connection part 3 has in the shown embodiment of the present invention a circular cross section. The turning grip has a diameter d1 while the mounting part 42 has a diameter d2. In the shown embodiment of FIG. 3 b d2 is smaller than the inner diameter of the third member 30 in order to facilitate the assembly of the second connection part 3 into the third member 30 of first connection part 2 of the fluid transfer device 1 as described earlier. This is further illustrated in FIG. 3 c in which a side view of the second connection part of the present invention is shown. Further are a mounting means 44 and a first locking means 45 arranged on the mounting part 42 which in turn is arranged to a turning grip 41. Stabilization means 40 extends along the longitudinal axis A out from the centre of the connection means 42. In the shown embodiment of the present invention the turning grip 41, the connection means 42 and the stabilization means 40 are formed in one piece of material, it is however within the boundaries of the present invention that the turning grip 41, the mounting means 42 and the stabilization means 40 are formed of separate pieces of material attached to each other.
A first locking means 545, as described in earlier embodiments, prevents the second connection part 503 from turning in a predetermined direction, which is either clock-wise or anti clock-wise, with respect to the first connection part 502. As in the earlier embodiments the first locking means 545 may comprise a plurality of saw tooth protrusions which are arranged in a circle on the second connection part 503. The plurality of saw tooth protrusions interacts with interacting means on the first connection part 502, so as to allow for at least a 90�, e.g., at least a 180�, at least a 270�, or at least a 360� turn of the second connection part in a predetermined direction.
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