MXPA98006634A - Supply and filling device of jeri - Google Patents

Abstract

The present invention relates to a fluid transfer device comprising: a shell having an open close end, an open distal end and a side wall therebetween defining a generally hollow cavity, a first cannula assembly including a first cannula having a near end, a distal end and a lumen therethrough, a cutting edge at the distal end of the first cannula, a first mallet having a close open end and a distal end attached to the near end of the first cannula so that the lumen is in fluid communication with the open close end of the first hub, a second cannula assembly including a second cannula having a near end, a blunt distant end and a passage therethrough, a second a club having an open close end and a distant end attached to the near end of the second cannula so that the passage is in communication with and fluid with the open close end of the second hub, the first cannula assembly and the second cannula assembly are located at least partially within the shell cavity so that the distal end of the first cannula faces in the substantially opposite direction as the distal end of the second cannula and the first hub and the second hub removably engage opposite ends of the shell so that the open close ends of the hubs are accessible for coupling with a delivery device of flui

Description

SUPPLY AND FILLING DEVICE FOR SYRINGE CROSS REFERENCE TO RELATED REQUESTS This patent application is a continuation in part of the patent application of E. U. A. Series No. 91 1, 395 filed on August 14, 1997.

FIELD OF THE INVENTION The subject of the invention relates to a device that can be mounted on a hypodermic needle or other fluid delivery device, which allows access to the medicament or other injectable liquid in flasks having elastomeric closures and the subsequent supply of the medically or injectable liquid.

BACKGROUND A typical hypodermic syringe includes a syringe barrel with a mounting collar for threadedly coupling the hub of a needle assembly. A needle assembly includes a hub and a needle cannula which are connected. In cases where the needle assembly is held separately from the syringe just before use, the medical practitioner selects an appropriate needle assembly to perform the procedure. The needle assembly is removed from its sterile package, and the hub of the needle assembly is threadedly engaged with the mounting collar of the syringe barrel. Usually liquid pharmaceuticals and other injectable liquids are stored in rigid containers, which can be accessed using a hypodermic syringe. Some containers for injectable liquids are glass jars with elastomeric closures that can be penetrated by the needle over a hypodermic syringe. In order to have access to the liquid in a bottle, the plunger of the hypodermic syringe is removed in a near direction to draw a volume of air equally substantial from the barrel of the syringe to the volume of drug desired. The sharpened distant end of the needle is then pushed through the elastomeric closure of the bottle, and the air in the syringe barrel is injected into the bottle. The distal end of the needle and the vial coupled with it are then signaled gravitationally upwards. The practitioner ensures that the distant tip of the needle is covered by the medication in the vial by manipulating the needle and the vial with respect to each other. The plunger of the hypodermic syringe then moves closely to eject the desired volume of medicament through the needle and into the chamber of the syringe barrel. After removing a desired volume of medicine from the bottle, the doctor can inject the medication either to a patient, to another bottle or to an injection site in an intravenous group or catheter. There is a tendency for I .V systems. without needles, which do not require a pointed needle cannula to pierce the injection site in an I .V equipment. There are systems that have injection sites covered by a pre-groove septum, which can be accessed through a shaved cannula. Therefore, after removing the medication from a bottle using a sharp needle, the user should remove the needle and install a needle-free cannula if the medication will be used with an IV equipment. that has a pre-groove septum. At the time of pre-filling the syringe it can not know whether the medication will be injected through an injection site that has a pre-groove septum, which requires a blunt cannula, or through an injection site that has a perforable elastomeric septum, which requires a needle assembly having a cannula sufficiently sharp to pierce the septum. In the latter case, the practitioner can use the hypodermic needle assembly, which was used to fill the syringe. There is a need for an individual device, which allows the filling of a needle from a bottle having a pierceable stopper and the subsequent supply of the drug to an IV equipment. through a blunt cannula. There is also a need for an individual device, which can be used to draw the medicament out of a vial having a pierceable stopper and to inject this medicament through an injection site having a pierceable septum or a pre-groove septum.

COMPENDIUM OF THE INVENTION The subject of the invention relates to a fluid transfer device comprising a shell having an open close end, an open distal end and a side wall between them defining a generally hollow cavity. A first cannula assembly includes a first cannula having a near end, a distal end and a lumen therethrough, a first shank having an open close end and a distal end attached to the proximal end of the first cannula, so that the lumen is in fluid communication with the open close end of the hub, is provided. A second cannula assembly is also provided including a second cannula having a near end, a distal end and a passage therethrough, a second shank having an open close end and a distal end attached to the close end of the second cannula so that the passage is in fluid communication with the open close end of the second hub. The first cannula assembly and the second cannula assembly are at least partially extended within the shell cavity of the distal end of the first cannula looking substantially in the opposite direction of the distal end of the second cannula and the first shank and the Second mace removably engage opposite ends of the shell, so that the open close ends of the maces are accessible for coupling with a fluid transfer device, such as a syringe. A method for transferring an injectable liquid comprises the steps of: (a) providing a syringe including a syringe barrel having an elongated cylindrical body defining a chamber for holding fluid, an open close end, a distal end and a tip extending from the far end having a tip passage therethrough in fluid communication with the chamber, a plug in fluid-tight slidable coupling within the barrel and an elongated plunger rod extending close to the plug through the open near end from the barrel; (b) providing a fluid transfer device including a first cannula assembly that includes an elongated shell having an open close end, an open distal end, and a generally hollow cavity therebetween; a first cannula having a near end, a distal end and a lumen therethrough, and a cutting edge at the distal end of the first cannula for piercing a bottle stopper, a first sledge having an open close end and a a distant end attached to the near end of the first cannula, so that the lumen is in fluid communication with the open close end of the first hub; a second cannula assembly including a second cannula having an open close end, a blunt distant end and a passage therebetween, a second sledge having an open close end and a distal end attached to the proximal end of the second cannula, so that the passage is in fluid communication with the open close end of the second hub; the first cannula assembly and the second cannula assembly being located at least partially within the shell cavity, so that the distal end of the first cannula faces the distal end of the second cannula and the first shank and the second shank hubs removably engage the opposite ends of the shell, so that the open close ends of the clubs are accessible for coupling with a syringe; (c) connecting the fluid transfer device to the syringe, such that the tip is positioned within the open near end of the first hub and the chamber is in fluid communication with the lumen of the first cannula; (d) removing the shell from the first cannula assembly; (e) providing a bottle having a pierceable stopper and containing an injectable liquid; (f) placing the cutting edge of the first cannula in contact with the pierceable plug; (g) moving the syringe barrel toward the septum by causing the cutting edge on the distal end of the first cannula to pierce the pierceable plug to establish a fluid communication between the inside of the vial and the syringe chamber; (h) withdrawing the desired amount of injectable liquid from the bottle into the chamber by moving the plunger rod in a direction close to the barrel; (i) removing the first cannula from the bottle cap; (j) re-installing the shell on the first cannula assembly so that the first cannula is contained within the cavity and a force is applied to the shell enough to disconnect the first hub from the syringe; and (k) rotating the fluid transfer device around and connecting the fluid transfer device to the syringe, so that the tip is positioned within the open close end of the second hub and the chamber is in fluid communication with the passage of the second cannula.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side elevational view of the fluid transfer device of the present invention attached to a syringe. Figure 2 is a cross-sectional view of the fluid transfer device of Figure 1. Figure 3 is an exploded view of the fluid transfer device of the present invention and a syringe. Figure 4 is a cross-sectional view of the exploded view of the fluid transfer device of Figure 3. Figure 5 is a cross-sectional view of the fluid transfer device of Figure 1 taken along the line 5-5. Figure 6 is a side elevational view of a component of the fluid transfer device and the syringe that is being used to draw fluid from a capped bottle. Figure 7 is a side elevational view illustrating a component of the fluid transfer device and syringe being used to inject liquid to an injection site of an I .V equipment. Figure 8 is a side elevational view of an alternative fluid transfer device of the present invention. Figure 9 is a cross-sectional view of the fluid transfer device of Figure 8. Figure 10 is a side elevational view of another alternative fluid transfer device of the present invention. Figure 11 is a cross-sectional view of the fluid transfer device of Figure 10. Figure 12 is an exploded view of an alternative fluid transfer device of the present invention and a syringe. Figure 13 is a cross-sectional view of the first cannula assembly of Figure 12 taken along line 13-13.

DETAILED DESCRIPTION Since this invention is satisfied through the embodiments in many different forms, preferred embodiments will be described in detail in the drawings and in the present specification, understanding that the present description should be considered in illustrative form of the principles of the invention. the invention and does not intend to limit the scope thereof to the illustrated modes. The scope of the invention will be measured by the appended claims and their equivalents. Referring to Figures 1-7, a fluid transfer device 20 of the present invention includes a shell 21 having an open near end 22, an open distal end 23 and a side wall 25 therebetween defining a generally hollow cavity 27 . A first cannula assembly 31 includes a first cannula 32 having a near end 33, a distal end 34 and a lumen 35 therethrough. A cutting edge 36 is preferably provided at the distal end of the first cannula for piercing a bottle stopper or a pierceable septum of an IV equipment injection site. A first hub 37 having an open near end 38 and a distal end 39 is attached to the near end of the first cannula, so that the lumen of the first cannula is in fluid communication with the open close end of the first hub.

A second cannula assembly 41 includes a second cannula 42 having a near end 43, a distal end 44 and a passage 45 therethrough. In this embodiment, the distal end of the second cannula preferably includes a blunt tip 46. A second shank 47 includes an open near end 48 and a distal end 49 attached to the proximal end of the second cannula so that passage 45 is in communication of fluid with the open close end of the second mace. The first cannula assembly 31 and the second cannula assembly 41 are located at least partially within the cavity 27 of the shell 21, so that the distal end of the first cannula looks substantially in the opposite direction as the distal end of the cannula. the second cannula and the first hub and the second hub removably couple the opposite ends of the shell, so that the open close ends of the hubs are accessible for coupling with a fluid delivery device such as a syringe. It is within the scope of the present invention to include a shell holding the first cannula assembly and the second cannula assembly, so that the first cannula and the second cannula are parallel to each other instead of looking at each other, but continue to look at each other in a substantially opposite direction. The fluid transfer device of the present invention preferably includes a cover 51 having an open near end 52, a distal end 53 and a side wall 54 therebetween defining a depression 55 in the lid. The lid is removably connected to the distal end of the shell to help protect the open close end of the second hub from contamination. As will be described later in greater detail, a cap can also be provided for the near end of the shell, so that both cannula assemblies are protected from contamination through the caps. A fluid transfer device of the present invention is suitable for use with fl uid delivery devices such as syringe. For the purpose of illustration, the fluid transfer device 20 is connected to a syringe 60 comprising a syringe barrel 61 having a distal end 62, an open close end 63 and a circular side wall 64 defining a chamber 65 for holding fluid. The indications of volume measurement 67 are on the barrel to measure the volume of liquid that will be supplied. The distal end of the barrel is connected to the first hub 37, so that the lumen of the first cannula 32 is in fluid communication with the chamber 65 of the barrel of the syringe. In this embodiment, the distal end 62 of the syringe barrel includes a frusto-conical shaped tip 68, which couples a frusto-conical shaped surface 40 to the open near end 38 of the first hub. The distal end of the syringe barrel preferably also, but not necessarily, includes a Luer-type closure collar 69 concentrically surrounding the tip 68. The Luer collar has an internal thread 70, which couples radial projections 58 onto the first hub 37 to maintain it safely to the barrel. In this embodiment, the second hub 47 of the second cannula assembly also has a frusto-conical shaped surface 50 and radial projections 59 on its open near end 48. It is within the scope of the present invention to include various hub configurations, which are joined together. to a variety of other medical fluid handling devices. The hub configurations described hereinbefore, having an interior with frusto-conical shape, reflect one of these many possibilities. Many syringes and fluid handling devices, such as taps and adapters, and other fluid handling devices contain Luer-type slip and seal fittings to the which a club having an inner cavity with frusto-conical shape will properly engage. A plug 72 is placed in the chamber 65 in fluid-tight sliding engagement with the circular side wall 64. A rigid elongated piston rod 73 is connected to the plug and extends closely through the open near end of the barrel. The plug and the piston rod can be made of a unitary construction in one piece. The force applied to the plunger rod causing a sliding movement of the plug in a near direction expels the fluid through the duct 71 at the tip and into the chamber 65. In reverse, the sliding movement of the plug 72 in a distal direction pushes the fluid from the chamber 65 through the conduit 71. When the fluid transfer device 20 is mounted to a syringe, such as the syringe 60 having a locking collar Luer type, the fluid transfer device is rotated to advance the projections 58 on the hub 37 along the internal thread 70 of the collar 69. The rotation will push the hub towards the syringe barrel sealingly engaging the tip 68 of the barrel of syringe in the open near end of the hub 37. Due to the torque required to couple the fluid transfer device to a syringe barrel having a Luer-type closure collar, it is desirable to have torque transmission means of torsion to allow the rotational force applied to the shell to be transmitted to the hub of the first needle assembly and also to the hub of the second needle assembly. The means for transmitting the torque can include frictional engagement between the outside of the hub and the cavity in the shell. For example, the inner surface 29 of the cavity can be tapered to the same angle as the outer surface 30 of the first hub by promoting a larger area for frictional engagement. Therefore, pushing on the shell. while coupling or uncoupling a needle assembly from a syringe having a Luer-type locking collar, the frictional engagement between the hub and the sleeve will be increased to allow the rotational force to be transmitted from the shell to the hub. In this embodiment, as best illustrated in Figure 5, an additional structure is provided to help transmit the rotational force between the shell and the second cannula assembly. To improve the ability to transmit the rotational forces from the shell to the second mace, one or more protuberances on the hub, such as axial ribs 74 that engage a groove in the shell 21 formed from the projections 28 in the shell cavity . Any combination of protuberances and / or depressions on the hub or housing that are capable of transmitting sufficient torque to couple the hub to the barrel of the syringe will be satisfactory to function as a torque transmission structure together with carefully designed surfaces, which can transmit the torque through the additional forces. The fluid transfer device 20 of the present invention coupled with a fluid delivery device, such as a syringe 70, can be used to access the fluid in a vial having a pierceable stopper and deliver the fluid to a fluid delivery site. injection in an I .V equipment. or a catheter without considering whether the injection site has a pre-groove septum or perforable septum. This is a main advantage of the present invention. The embodiment herein contains a blunt cannula and a cannula having a cutting edge at its distal end, which is sharp enough to puncture rubber plugs and septa but does not have to be preferably sharp enough for injection through. of the skin. As best illustrated in Figure 6, the fluid transfer device 20 can be used with a syringe 60 to access the liquid or injectable medicament, such as fluid 80 contained in the bottle 81 having a pierceable plug 82. The first step is to connect the fluid transfer device 20 to a syringe 60, so that the tip 68 is positioned within the open close end of the first hub 37 and the chamber 65 is in fluid communication with the lumen of the first cannula. To achieve this result, a rotational force is applied to the shell, which causes the hub to rotate and the projections 58 on the hub to follow the internal thread 70 in the closure collar. When the first cannula is securely attached to the syringe, the user can pull the shell to uncouple the shell from the first cannula assembly. The fluid in the bottle has access by placing the cutting edge of the first cannula on the upper surface 83 of the plug 82 and by applying an axial force through the syringe barrel in the direction A. The cutting edge on the first cannula will pierce the stopper and allow fluid communication between the inside of the vial and the syringe chamber. At this point, the liquid can be drawn into the barrel of the syringe using known methods such as the method described above. The syringe and the first cannula assembly are then removed from the bottle cap. The shell of the fluid transfer device can now be reattached with the hub of the first cannula assembly to protect the first cannula assembly from contamination. The syringe fills 60 with the attached fluid transfer device 20, is transferred to the point of use, where it can be used to inject fluid into a patient through an I.V. or a catheter having an injection site with a pre-slot or pierceable septum. Specifically, as illustrated in Figure 7, an I.V. 85 may include a housing 86 having a hollow interior conduit 87 and a flexible tube 88 connected to a patient's swiveling system, usually through a catheter. The housing 86 also includes another flexible tube 89, which is connected to a fluid source I .V. The housing 86 also includes a port 89 having a conduit 90 therethrough in communication with the inner conduit 87. A pre-slot septum 91 covers the open end of the conduit 90. Most of the ports are covered by perforable septa. or pre-groove septa and are known in the art and sometimes referred to as "PRN" of the Latin meaning pro re nata which means (as the needle rises). Septum 91 is a pre-slot septum having a slot 92 therein. Septum 91 effectively seals conduit 90 from the exterior of the housing. At this point, the user applies a rotational force to the shell of the fluid transfer device to decouple the first cannula assembly from the syringe. If the fluid transfer device contains a removable lid on its distant end, the lid is now removed. The user now rotates the fluid transfer device around and connects the fluid transfer device to the syringe, so that the tip of the syringe barrel is positioned within the open near end of the second hub 47 and the chamber is in the vicinity of the syringe barrel. fluid communication with the passage of the second chamber 42. In this embodiment, the connection is achieved by applying a rotational force to the shell to couple the second hub securely to the syringe barrel, as described above. The shell is now removed from the second cannula assembly 41 by applying an axial force to disengage it from the second hub. The user now moves the syringe and the second cannula assembly to an IV assembly that has an injection site with a pre-slot septum and advances the syringe into the pre-slot septum, so that the tip blunt of the second cannula passes through the slot in the septum and establishes a fluid communication with the I .V equipment. as illustrated better in Figure 7. The plunger can now be advanced, so that the plug moves the fluid from the chamber through the passage of the second cannula and towards the I V equipment. If the septum of the I .V equipment . It is pierceable and has no pre-slot. the user does not have to uncouple the first cannula assembly from the syringe and install the second cannula assembly. The method will consist of filling the syringe as described above preferably re-applying the shell to the first cannula assembly to protect the second cannula during transfer of the syringe and the fluid transfer device to the injection site, as described above for the pre-groove septum. Thereafter, the user removes the shell from the first cannula assembly and advances the needle toward the septum, so that the cutting edge of the first cannula will void the septum and establish a fluid communication with the I.V. Greater force will be required to penetrate a pierceable septum and the sharp cutting edge of the first cannula will be necessary, since this procedure can not be achieved with a blunt cannula. Accordingly, the fluid transfer device of the present invention allows the filling of a syringe from a bottle having a pierceable plug and supplying this fluid through an I V site having a pre-slot or pierceable septum. . No other apparatus is necessary to achieve this result. Figures 8-9 illustrate an alternative embodiment of the present invention. An alternative fluid transfer device 120 includes a shell 121 having an open close end 122, an open distal end 123, and a side wall 125 therebetween defining a generally hollow cavity 127. The fluid transfer device 120 also includes a first cannula assembly 31 having a first cannula 32 and a first shank 37, and a second cannula assembly 41 having a second cannula 42 and a second shank 47. The first shank 37 has an open close end 38 and the second hub 47 has an open close end 48. The cavity 127, at the close end 122 of the shell, is enlarged to form a nearby receptacle 124, which is larger than the first hub 37 so that the first hub is completely contained within the near receptacle portion 124 of the cavity. Also, the distal end 123 of the shell is enlarged so that the cavity 127 forms a distal receptacle 126, which is larger than the second hub 47 so that the second hub is contained within the distal receptacle 126 of the cavity. The receptacles are large enough so that the fluid transfer device can be attached to a hypodermic syringe through the open near end or the open distal end of the shell. However, in this embodiment, the cannula assemblies can not be removed from the shell by hand since digital access is substantially restricted. A tab 129 is removably sealed over the open near end 122 of the shell to protect the open near end 38 of the first hub from contamination. Also, a tongue 130 is removably sealed on the open distal end 123 of the shell to protect the open near end 48 of the second hub from contamination. The tabs 129 and 130 may be of a removable variety, which are heat sealed through the open ends of the shell. The tabs may contain or be made of an air permeable material capable of filtering bacteria. The tabs can also be made of a material that is not air permeable. The sterilization procedure and other design factors will determine the choice of the material of the tongue. In this embodiment, the first hub 37 includes a filter 56 for filtering the liquid that passes between the lumen and the open near end of the first hub. The filter may be useful for filtering waste that may be contained in the fluid storage container, so that waste is not ejected into the barrel chamber of the syringe. Figures 10-1 illustrate another alternative fluid transfer device 220. The embodiment of Figures 10-1 is similar to the embodiment of Figures 1-7. The fluid transfer device 220 further includes an additional cover 251 having an open near end 252, a distal end 253 and a side wall 254 therebetween defining a depression 255. The cover 251 is removably connected to the open near end 222 of the shell 221 to protect the open near end 38 of the first hub 37 from contamination. The shell 221 also includes a barber 224 separating the cavity portion 227 containing the first cannula 32 from the cavity portion 227 containing the second cannula 42. Under certain circumstances, the barrier 224 may be useful to additionally protect the unopened end of the fluid transfer device from contamination through the open end. It should be noted that various structures for the shell of the fluid transfer device of the present invention are taught. For example, there are embodiments that have a cap on one or both of the open ends of the shell, there are embodiments having peel-off tabs on the open close ends of the shell, and there are modalities that neither have lids nor have tabs. There are embodiments having the hub exposed or contained within a depression formed in an enlarged open end of the shell. These features can be mixed and matched to suit the various applications to use the fluid transfer device of the present invention. For example, both ends of the shell can be enlarged to form a depression to cover the maces with one end being covered by a lid and the other end being covered by a removable tongue. All of these various combinations are within the scope of the present invention. Also, although the first cannula is shown as a slightly sharp distant end suitable for drilling septa but not for injection into the skin and the second cannula is shown as a blunt cannula, these limitations do not restrict the present invention. Both cannulas can have very sharp tips suitable for injection through the skin. Also, the second cannula can be an injection cannula through the sharpened skin, so that the filling procedure can be carried out with the first less sharpened cannula and the sharper cannula only exposed at the time of injection. Again, all of these combinations are within the scope of the present invention. Figures 12-13 illustrate another alternative embodiment of the present invention. This embodiment is similar to the embodiment of Figures 1-5, except that the first cannula assembly includes a blunt cannula. Specifically, a first cannula assembly 131 includes a first cannula 132 having a near end 133, a distal end 134 and a lumen 135 therethrough. In this embodiment, the distal end of the first cannula includes a blunt tip 136. A first hub 137 having an open close end 138 and a distal end 139 is attached to the proximal end of the first cannula, so that the lumen of the first The cannula is in fluid communication with the open close end of the first hub. In this embodiment, both the first cannula assembly 131 and the second cannula assembly 41 include a cannula having blunt distant ends. The present invention includes blunt cannulae having open distal ends such as the first cannula 132 and the second cannula 42, wherein the lumen passes directly out of the distal end. It is within the scope of the present invention to include blunt cannulas having blunt, distant ends, wherein the end of the cannula is closed and fluid enters and exits the lumen through one or more openings in the side of the cannula. The blunt cannulae are cannulae having distinctly tapered distant ends, which are specifically designed to prevent accidental puncture of the skin during normal use. The blunt cannulas are designed to work together with inventive sites that have pre-groove septa. Therefore, blunt cannulae can be sharpened in any way that will facilitate use with pre-groove septa and will still withstand accidental puncture of the skin during normal use. The present invention is suitable for use wherein the source of the liquid, which will be ejected into the syringe, is accessible through a pre-groove septum. During use, the fluid transfer device is connected to the syringe 60 so that the tip 68 is positioned within the open close end 138 of the hub and the chamber 65 is in fluid communication with the lumen of the first cannula. To achieve this result, a rotational force is applied to the shell 21, which causes the hub to rotate and the projections 158 on the hub to follow internal threads 70 in the closing collar. When the first cannula is securely attached to the syringe, the user can pull the shell to disengage the shell from the first cannula assembly. Fluid in a jar or other receptacle having a pre-slot septum is accessed by advancing the syringe into the pre-slot septum so that the blunt tip of the first cannula passes through the slot in the septum and establishes the communication of fluid with the fluid in it (receptacle not illustrated). In this point. the liquid can be expelled into the barrel of syringe using known methods. The syringe and the first cannula assembly are then removed from the pre-groove septum of the vial. The cuff of the transfer device is now reattached to the hub of the first cannula assembly to protect the first cannula assembly from contamination.

The device for filling syringes including the second cannula assembly can now be used as described above to transfer injectable liquid to an injection site having a pre-slot septum. Having a blunt cannula in both cannula assemblies allows removal of fluid from flasks or other receptacles having a pre-groove septum and subsequently replacing the first cannula assembly with the second cannula assembly when the injectable liquid is delivered through of an injection site that has a pre-groove septum. Accordingly, a blunt, unused, clean cannula will be provided at the time of delivery of liquid to the patient. It is also within the scope of the present invention to modify the embodiment of Figures 8 and 9 and the embodiment of Figures 10 and 11 to include a first cannula having a blunt distant end.

Claims (10)

1. - A fluid transfer device comprising: a shell having an open close end, an open distal end and a side wall between them defining a generally hollow cavity; a first cannula assembly including a first cannula having a near end, a distal end and a lumen therebetween, a first shank having an open close end and a distal end attached to the proximal end of the first cannula so that the lumen is in fluid communication with the open close end of the first hub; a second cannula assembly including a second cannula having a near end, a blunt distant end and a passage therebetween, a second shank having an open close end and a distal end attached to the proximal end of the second cannula, so that the passage is in fluid communication with the open close end of the second hub; the first cannula assembly and the second cannula assembly being located at least partially within the shell cavity, so that the distal end of the first cannula faces is substantially in the opposite direction as the distal end of the second. cannula, and the first hub and the second hub removably engage the opposite ends of the shell, so that the open close ends of the clubs are accessible for coupling with a fluid delivery device.

2. The fluid transfer device according to claim 1, further including a cover having an open close end, a distal end and a side wall between them defining a depression in the cover, the cover being removably connected to the cover. Distal end of the shell to protect the open close end of said second hub from contamination.

3. The fluid transfer device according to claim 1, further including a cover having an open close end, a distal end and a side wall between them defining a depression in the cover, said cover being removably connected to the cover. close end of the shell to protect the open near end of the first hub from contamination.

4. The fluid transfer device according to claim 1, wherein the cavity at the open distal end of the shell is larger than the second mace, so that the second mace is contained in said cavity.

5. The fluid transfer device according to claim 4, further including a removably sealed tab on the open distal end of the shell to protect the open close end of the second hub from contamination.

6. The fluid transfer device according to claim 1, wherein the cavity at the open close end of the shell is larger than the first mace, so that the first mace is contained in said cavity.

7. The fluid transfer device according to claim 1, wherein the cavity in the shell contains a barrier that separates the portion of the cavity containing the first cannula from the portions of the cavity containing the second cannula.

8. The fluid transfer device according to claim 1, further including a filter in the first hub to filter the liquid passing between the lumen and the open close end of the first hub.

9. The fluid transfer device according to claim 1, wherein the distal end of the first cannula includes a blunt tip.

10. The fluid transfer device according to claim 1, further including a syringe barrel having an elongated body defining a chamber for retaining fluid, an open close end, a distal end and a tip extending from the end Distant having a tip passage therethrough in fluid communication with the chamber, said tip being positioned within the open near end of the first hub, so that the chamber is in fluid communication with the lumen.