MXPA97005528A - Valve against cross contamination and systems for the transfer of fluids using the - Google Patents

Abstract

The present invention relates to a valve against cross-contamination, characterized in that it comprises: a valve housing having only a plurality of first ports and a third port different from said plurality of first positions all of which open to a hollow interior; a valve body rotatably mounted within said hollow interior and having at least one passageway of fluid therethrough, said at least one passage including a first fluid passage opening opening a first port of said plurality of first ports to said third port when said valve body is rotated to a first position with respect to said valve housing, said plurality of first ports being closed, except said first port, when said valve body is in said first position, said at least one passage including a second passageway of fluid opening a second port of said plurality of first ports to said third port when said valve body is rotated to a second position with respect to said valve housing, said plurality of first ports being closed, except said second port, when said valve body is in said second position; to prevent said at least one fluid passage from opening any of said plurality of first ports to ot

Description

VALVE AGAINST CROSS CONTAMINATION AND PORO SYSTEMS Lfl TRANSFER OF FLUIDS USING THE SAME TECHNICAL FIELD The present invention relates generally to medical systems for the transfer of fluids, and particularly if medical subjects for fluidity < It uses a valve that prevents cross-contamination between the sources of fluids connected to the vaivula.

BACKGROUND OF THE INVENTION Valves for transferring fluids with multiple ori fi ces are known for a long time in the art. These valves typically have! or more holes and the ability to selectively open the various orifices of each other or in different combinations depending on the number of holes. For example, U.S. Patent No. 3,048,192 shows a surgical valve with three or four orifices and the ability to open any orifices from one to the other. Sirní rrnonte, U.S. Pat. No. 4,900,322 shows a valve with four holes and the ability to selectively connect different pairs of holes. Although there are numerous medically related procedures in which it is convenient to cross-connect vain orifices of a valve, there are some situations in which the cross-connection between certain orifices creates the possibility of inconvenient cross-contamination by undermining a particular medical procedure and / or avoiding or delaying a patient receiving a desired treatment. Figure 2 shows a Y-type blood / solution kit according to the prior art 10 'used in a variety of circumstances to transfuse fluids to a patient. Although these blood / solium equipment work satisfactorily in many situations, physicians are often faced with cross-contamination problems when a bag with solution connected to the bag connector 16a is flowed to the fluid container attached to the connector 16b, or vice versa. An exemplary situation would be when a blood / 10 'solution kit is being used to transfer a medicated saline solution from a first connected bag < =? connector 15a, and a sudden emergency requires the rapid transfer of blood or blood product from a bag attached to connector 16b. In order to expedite the transfer of blood to the patient, the physician can mechanically press or compress the bag attached to the connector 16b in order to increase the flow velocity of the fluid through the filter and other downstream components emerging from the bag. . Unfortunately, in many such emergency situations, both clamps 18a and 18b are accidentally left open and the blood flowing through the connector 16b is allowed to flow down through the Y-connector 20 and back up into the bag. with medicated saline solution attached to connector 16a, continuing to saline the medicated saline with all the blood or blood product. In this situation, the contaminated saline solution should be discarded and the physician should be given a guess as to how much of the blood unit was lost in the cross-contamination. At the same time, emergency blood transfusion to a patient has been delayed due to blood flowing through the bag with saline instead of down through the filter and other components to the patient. It is likely that additional valuable time is lost in the time required to close the clamp 18a, remove the bag with the contaminated saline solution and fix a new bag with medicated saline solution to the 16a connector, which must be resumed, usually after that the blood unit has been transferred to the patient, although the blood / solution equipment 10 'of type Y according to the prior art and the valves discussed above have the ability to avoid cross-contamination, do not include any means of self-protection to avoid contaci ination crossed. The present invention is designed to overcome the problems of possible cross-contamination associated with medical devices for the transfer of fluids according to the prior art.

BRIEF DESCRIPTION OF THE INVENTION In one embodiment, the present invention comprises a valve against cross-contamination having a valve housing with a plurality of first holes, and a third hole all of which open to a hollow interior. A valve body is rotatably mounted within the hollow interior and has at least one passageway for fluids therethrough. A knob is attached to the valve body and extends outside the vault housing. The at least one passageway includes a first passage for fluids that opens the first hole to the third orifice when the valve body is rotated to a first position with respect to the vault housing, and closes a second orifice when the valve body is in his first position. Also, the at least one passageway includes a second fluid passageway that opens the second port to the third port when the valve body is rotated to a second position with respect to the valve housing, and the first port is closed. when the valve body is in its second position. Finally, the vaivula includes some means to prevent the at least one passageway for fluids from opening the first orifice to the second orifice.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a Y-type blood / solution kit against the fouling contaminated according to one embodiment of the present invention. Figure 2 is a schematic view of a blood / solution equipment of type Y according to the prior art. Figure 3 is an isometric view of a vault cross-contamination according to the present invention. Figure 4a is a top-sectional view of the cross-contamination valve of the view of the Fixture 3 along the section line 4a-4a. "Figure 4b is a sectional top view of a vault against the Cross-contamination according to another embodiment of the present invention. Figure 5 is a top view of an extrusion / valving pipe assembly against cross-contamination according to the embodiment of the present invention. Figure 6 is a schematic illustration of a device for urological irrigation against cross contamination according to another modality of the present invention. Figure 7 is a sectional top view of a valve against cross-contamination according to another Li mode of the present invention. Figure 8 is a sectioned top view of a valve against cross contamination according to another embodiment of the present invention. The Figure < 3 is a schematic illustration of a blood / Y-type solution against cross-contamination according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Referring again to Figure 2, a 10 'blood / solution device of type Y according to the prior art includes 2 sections of IV tubing 11 and 12, each with a bracket 18 mounted thereon and having a connector 16 for the bag. with a protective layer 17 attached to one of its extr-ems. The other ends of the pipe 11 and 12 are joined in a Y-connector 20 that opens to a filter 19"A drop-shaped 21 and a drip chamber 22 are attached to the exhaust outlet of the filter. A third section of the TV pipe 13 extends from the lower part of the drip chamber 22 to the injection port 27. A sliding clamp and a regulating or roller type abutment 25 are mounted on the pipeline. IV 13. Finally, a fourth section of the EV pipe 14 is connected at one end to the injection hole 27 and the outer eye to the connector 28, such as a Luer connector, which includes a protective cover 29, which is It is removed before use., In some type B-type equipment, the filt of the equipment is omitted. Ln such cases, an intermediate auxiliary filter can be fixed to the bag and to the connector-16? arv \ bag if desired. Referring now to Figure 1, a blood / solution-type device 10 of the type Y is shown to cross-contaminate according to the present invention directly adjacent equipment 10 'according to the prior art. The cross-contamination equipment 10 includes many of the same features, which are numbered identically, than its counterpart, the equipment 10 'according to the prior art. In particular, the equipment 10 includes a first master of the IV pipe 11 with a connector 16b for a bag fixed to an ex r-emo and connected to a first orifice of a valve 30 against the contamination generated at its other end. . The bag connector 16b can be any type of connector that facilitates the connection of the pipe 11 to a fluid container. For example, the connectors 16b could be an ordinary bag latch that includes a fluid-tight protective cap 17, which is removed and discarded when the bag connector 16b is actually attached to the fluid container, such as a container. a bag for blood or solution. A second section of pipe 12 includes a connector 16a for a bag at one end and connects to a second orifice of the valve 30 against the cross-amination in its other extr-emo. The outlet orifice of the valve 30 is fixed or filter 19, which in turn is fixed to a droplet form 21 and a drip chamber 22. A third section of TV pipe 13 extends the lower part of the chamber. drip 22 to an injection hole 27. e mount a sliding clamp 2k and a typical regulating clamp 25 on the third section of the pipe 13. The regulating clamp 25 has the ability to control the flow velocity of the fluid through the device at patient while the sliding clamp 24 gives the ability to quickly untangle the pipe 13 in order to close the flow completely. The injection port 27 can be of any known type that allows the injection of intravenous fluid or medication to the flow of fluid through the equipment to the patient. A fourth section of tubing TV 14 is connected by an extr-emo to the injection port 27 and to a connector 20, such as a Luer conector, by its other ex-emo. To use, the connector 28 preferably includes a protective end cap 29. As you can see, the team 10 contr-a L <; cross contamination is substantially identical to the equipment 10 'according to the prior art except that the clamps 18a and 18b of the equipment according to the prior art have been removed and the connector 20 in Y of the prior art has been replaced by a valuula 30 contr-a cross-contamination according to the present invention, cross-linking between the respective fluid containers fixed to connectors 16a and 1.6b is allowed in the equipment 10 'according to the prior art as long as both clamps 13a are left open. and 18b, because the connector 20 in Y is simply a three-way intersection passageway. The cross-contamination equipment 10, on the other hand, includes a valve 30 that can not allow the flow of fluids between the respective fluid containers attached to the bag connectors 16a and 16b. e shows the vavula 30 in its second position in which the knob 32 and the arrow head 33 indicate the direction of the IV pipe 12.

This indicates to the user that only the container for fiuids fixed to the bag connector 16a is in fluid communication with the filter 19 and other components in downward flow of the equipment. By rotating the knob 32 to the right to its first position (shown shaded) in which the arrow head 33 indicates the direction of the pipe 11, the user knows that only the pipe 11 is open to flow through the pipe. vivid Also shown shaded in Figure 1 is the knob 32 of the valve 30 in its intermediate or third position in which both the inlet orifice connected to the pipe 12 and the inlet orifice connected to the pipe 11 are closed to the filter 19 and The components inferior to the equipment. In this way, the user of equipment 10 of the Y and cross-contamination can quickly distinguish what is, if any, of the fluid-tight vessels attached to the Iba connecting and L6b to the bag are open to flow, throwing just a look at the position of the arrow head 33 -on the vavula 30. This is not possible with the equipment 10 'according to the prior art-which left the user guessing which, if any, of the fluid containers were open It would be expected based on a glance at the relative position of the rollers in the clamps 18a and 18b. Clamps 18a and 18b of the prior art serve to regulate the flow velocity at iltro 19. regulation of the flow in Y-type equipment 10 against cross-contamination is effected simply by rotating knob 32 slightly towards the position intermediate closed so that the internal passage through the valve 30 is only partially open to the respective orifice (see Figure 4). The various features and internal structure of the vault 30 against cross contamination are illustrated in Figures 3 and 7. The valve 30 includes a cylindrically shaped valve housing 42 having a first inlet port 34, a second inlet port 35 and an outlet port 36 all of which open to a hollow interior 41. Each of the orifices includes a connector 37, such as a Luer lock connector that facilitates the attachment of the various trades to a section of pipe. A valve body 31 cylindrically shaped is given the size and position due to substantially fill the hollow interior 41. The vault body 31 includes a first passage 43 and a < -Whole passageway 44 through it that are substantially parallel to each other. A knob 32 is attached to the supepor side (not shown) of the vault body 31 and facilitates the rotation thereof within the hollow interior 41. The various components of the valve 30 are preferably molded from a suitable plastic of a type known in the art. Figures 3, 4a and 4b show the valve in its closed position so that neither the first inlet 34 nor the second inlet 35 opens to the outlet orifice 36. The stop barriers 38 and 39 restrict the rotational movement of the valve body 31 inside the valve housing 42. In particular, since the knob 32 extends on the side of the vane housing 42, the counterclockwise rotation stops when the knob 32 is turned on. It meets the stop barrier 30 as shown in Figure 1. When it is in this position, the passageway 43 allows the communication of fluids in the first inlet 34 and the exit orifice 36. the clockwise rotation of the vavul body 31 stops when the knob 32 meets the second stop barrier 39. The vavula 30 can be operated with one hand by simply placing a finger on one of the stops 38 or 39 and ent the finger next to the knob 32, and then simply pressing the fingers one toward ot r-o until the knob 32 meets one of the stops. The flow through the valve 30 can be decreased or regulated by turning the pin 32 slightly away from one of the respective stop bars so that only part of the passageway 43 or 44 is in fluid communication with the respective one. entry hole. In this way, the valve of the present invention allows the selective connection of fluids through the vavula, the regulation of that flow and includes features that avoid the possibility of cross contamination between the orifices of entrance to the vaivula.

Figure 4a shows a vault body 41 responsive to the preferred embodiment of the cross-control vault of the present invention and Figure 4b shows an alternative embodiment 30 'having a single passageway through the vault. same The valve 30 'includes only a single passageway 40' instead of the parallel passages 43, 44 of the previous mode. The valve 30 'is similar to the previous embodiment in that one simply rotates the vault body 31' through the fixed knob (see Figure 3) in order to point the upper portion 43 'of the passage 40'. to one of the respective holes. Also with the previous mode, the side stops prevent the body '1e valve 31' from being placed in a way that allows cross contamination between the two inlet orifices., The alternative vavula, the vavula 30 'contr-a la contami It is less convenient than the valve 30 of FIGS. 3 and 4a because the passageway 40 'may allow in some cases the convenient collection of fluid within the vault. Referring now to Figure 5, there is illustrated a tube 50 of a valve with extension against cross contamination according to the present invention. The equipment 50 includes a vault 51 with a crimp connection with a first orifice 53, a second orifice 54 and a third orifice 55 that is connected to a section of TV 58 tubing. If convenient, it can be fixed a connector 59, of a type known in the art, to the other end of the TV pipe 58. the vavula 51 is similar in function to the valve 30 against the cross contamination considered above except that it includes a single passageway on an angle (no shows) that is aligned with the indicia 57 on the knob 56. Since the first bore 53 and the second bore 54 in the valve body 52 are aligned, it is impossible for these two bores to be in fluid communication one with the other. or ro through the corridor at an angle. In this way, the fluid sources connected to the first orifice 53 and the second orifice 54 can not cross-contaminate each other since there is no way to open the passage for fluids between these respective orifices irrespective of the position of the end. 56. FIG. 5 also shows shaded knob 56 that rotates clockwise 90 ° to a position in which first hole 53 opens to third hole 55. Regulation of flow through the vault 51 is made by simply rotating the knob 56 slightly away from its fully open position, such that it is shown, so that only a portion of the passageway within the vault body 52 is exposed to the respective orifices, fi difference of the valves 30 and 30 'considered above, the valve 51 does not include barriers so that the knob 56 can rotate 360 °, however, the user can easily * notice the position n of the vaivula observing the relative position of the indicia 57 with reference to the respective holes 53, 54 and 55.

Refi was now rendered Figure 6, there is shown a urological irrigation equipment 70 for cross-contamination according to the present invention. The urological equipment 70 is substantially similar to the blood equipment of a solution of the type Y against cross-contamination with the above id except that it preferably includes large diameter irrigation tubing instead of the TV tubing of the patient. equipment 10 and also eliminates vain components that are included in the equipment 10 pair-to-blood / solution mode Lf) cintepor. In particular, the urological kit 70 does not include a filter, droplet former *, injection or drip chamber. Urological equipment 70 included a first section of irrigation tubing 71 having an appropriate connector-76, fixed to an extr-emo of a hole of the vavula 30 against cross-contamination fixed to its other end. Simi lar-mindA second irrigation pipe 72 has an appropriate connector 76, fixed to one end and another hole of the valve 30 against cross-linking fixed to its other end. Preferably, both connectors include a proctor-to-fluid stage 1 that remains in place until it is used, at which point it is removed and discarded .. A third section of irrigation tubing 73 has one end connected to the orifice outlet 36 of valve 30 and its other end 5 connected to a connector 79 of a type known in the art, such as a catheter adapter. A clamp Ib is mounted regulator 75 on the third section of irrigation pipe 73 and acts as a secondary means to control the speed of flow through the equipment. Referring now to Figure 7, there is illustrated a 4-hole version of a vault 80 against cross contamination according to the present invention. The valve 80 includes a valve housing 81 having three first holes 82-84 and a fourth hole 05, all the panels open to the hollow interior of the valve housing. A valve body 86 configured in the interior of the interior is mounted within the hollow interior of the vault housing 81 and includes three parallel passageways 87-89 through the ism. A knob (not shown) is attached to the vault body and extends outwardly from the vault housing so that it can be rotated from the vault body 86 with respect to the valve housing to selectively open the vane openings. The size and geometrical configuration of the first holes 82-84 together with the geometrical configuration of the body of vavula 86 and its passageways 87-89 provide the means to prevent the passageways from opening which ski er-a the first holes one to another. In other words, there is no relative positioning of the valve housing 81 with respect to the valve body 86 in which any of the first holes 82-84 can be brought into fluid communication with one another. The valve 80 is shown with the first orifice 82 in fluid communication with the fourth orifice 85 through the passageway 87. The first orifices 83 and 84 can be selectively opened to the fourth orifice 85 by an appropriate rotation of the vault body 86 to align the passages 88 and 89 with the fourth passage 85. Referring now to Figure 8, a 5-hole version of a valve 90 against cross contamination is illustrated according to yet another embodiment of the present invention. The vavula 90 includes a vault housing 91 having four first holes 92-95 and a fifth orifice 96 all of which open to an interior-recess 97. The valve body 98 is generally mounted within the hollow interior 97 and It has four parallel passages 99-102 through it. The valve 90 is shown with one of the holes, namely the orifice 94, in fluid communication with the fifth orifice 9b through the passageway 101.

Although any of the first holes 92-95 can be selectively opened to the fifth hole 96, there is no vaulting position allowing any of the first holes 92-95 to communicate with each other. In this way, the valve 90 controls cross contamination includes self-protection means reliably prevent any of the first holes 92-95 from opening to each other. Referring now to Figure 9, a blood / solution type 110 device of the Y type is illustrated according to another embodiment of the present invention. The equipment 110 is different from the equipment 10 described above in the sense that it includes an additional valve 30 against the fouled contamination and an additional filter. This modality allows a healthcare provider to connect to a new filter without otherwise interrupting the flow of fluid to a patient, most of the various components of blood / solution equipment 110 are identical and € > stan numbered identically to the components shown with respect to equipment 10 for blood / solution described above. As the above embodiment, the equipment 110 includes a first pipe coupler 11 having a bag socket 16b fixed to an ex paddle and its other end fixed to one of the first holes of a valve 30 against cross-contamination of the type shown and described in Figures 3 and 4. A second pipe master IV 12 has a bag spigot 16a fixed at one end and its other end fixed to one of the first holes of the vavity channel 30 against contamination crusade. Both bag holsters include lids 17 that are removed when they are actually put into use. The third holes 35 of the cross contamination valves 30 are connected to each other with a short segment of the theory IV 15. A pair of filters 19a and 19b are connected in parallel to the holes of the second valve against cross-contamination and they are brought together again in a single TV tube in descending flow just before the drop former 21 and the drip chamber 22. A third section of IV pipe 13 extends from the bottom and bottom of the drip chamber 22 to an injection orifice 27. A sliding clamp 24 has typical regulating clamp 25 mounted on the third section of the pipe 13. A fourth section of the pipe IV 14 is attached at one end to the injection hole 27 to a Luer 'lock or other connector 28. Suitable for 'your o <; extreme Until use, the connector 28 preferably includes a protective end layer 29. It is well known that over time a filter for solution, such as the filters for solution 19a and 19b, needs to be replaced after the fluid volume has passed. through it. In the past, physicians and other health care providers had to stop the flow of fluid to the patient while the new equipment was connected to the patient with a solution that had a new filter. In the case of the present invention, the healthcare provider simply rotates the lower valve 30 to pass the fluid through the other available filter 19b, as shown. In some cases, it could be preferable that the filters 19a and b were removable from the remaining portion of the equipment so that worn filters can be replaced by new filters without ever interrupting the flow of fluids to the patient. The equipment is shown with the bag 16a for bag in fluid communication with the filter L b. As an alternative, it could be convenient to accommodate the double filters 19a and b in a single permanent housing, especially in those cases where it is unlikely that two filters will be needed.

Although equipment 110 for blood / solution is illustrated using a pair of vials 30 cont-to cross-contamination according to the present invention, in its most basic form, this equipment does not necessarily need features with cross-contamination to In order to achieve the advantages of double filters. In other words, the upper valve 30 against cross contamination can be replaced with a simple connector on Y and the lower valve 30 against cross contamination could be replaced with a simple two-way valve of a type known in the art. In such a configuration, the equipment would still suffer from potential cross-contamination between the fluid supplies but would retain the advantage according to the present invention of being able to be connected to a new filter, such as the filter 19b, when the first filter 19a is spent . In this way, any suitable connector element can be used in place of the top valve-against cross-contamination illustrated. Although the present invention has been illustrated as a urological cross-contamination device, tube / valve extension assembly, blood equipment of a Y-type solution and cross-contamination valve, it should be evident that various other modifications can be made. for the present invention described hereinabove and that many apparently different embodiments thereof may be made without departing from this scope of the invention. For example, various known components for fluid transfer (ie, clamps, tubing, filters, connectors, etc.) can be assembled in various combinations with the "cross-contamination" of the present invention to produce * a wide variety of systems. doctors for the transfer of fluids that need a self-protection device against cross-contamination. The following is a partial view of some of the medical systems for fluid transfer that could be used against the cross-contamination of the present invention. Equipment for pumping food, equipment for pumping blood type Y equipped with holes, equipment for pumping fluids for arthroscopic irrigation, equipment for cardiac catheterisation, hypodermoclysis equipment, type Y connectors, equipment venoset piggybaclp connectors Y in irrigation, transurethral four-direction resection equipment, sphygmomanometer equipment, equipment for volumetric pumping of blood type Y, catheter extension equipment-type Y, equipment for infusion of mass, equipment pair-a adrninist acute peptoneal dialysis ration / drain, equipment for irrigation of type Y wounds, laparaseopica suction-irrigation equipment, primary equipment for transfusion of type Y blood and equipment for endoscopic irrigation. Thus, the present invention is potentially applicable to a wide variety of medical procedures including those related to transurethral resection, endourology, artoscopy, endoscopy, laparoscopy, endo-surgery, periscope surgery, eteroscopic surgery, for noting only a few. In addition, those skilled in the art will immediately appreciate that the principles of the present invention can be applied to produce cross-contamination valves having four or more orifices, rather than three holes as described in the embodiments described. The foregoing description and purpose is intended only to assist those skilled in the art and the understanding of the invention and is not intended to limit the legal scope of the patent which is exclusively described by the claims set forth below.

Claims (24)

1. NOVELTY OF THE INVENTION CLAIMS 5 1.- A vavula against cross-contamination that includes: a vaivula accommodation < } that has a device for first holes and a third hole different from said plurality of first holes all of which open to a hollow interior; a valve body mounted and i rablornent or 10 inside said hollow interior and having at least one passageway of fluid therethrough; said passage including at least one first flow passage opening a first orifice of said plurality of first orifices to said third orifice when said flow-through body is rotated. 15 vaults to a first position with respect to said valve housing, all of said first hole equipment being closed, except said first hole when said vavula body is in said first position; and covering such a passageway at least one second passageway of fluid that 20 opens a second hole of said equipment for first holes - * »said third hole when said valve body is rotated to a second position with respect to said valve housing, closed shelf all said first hole, except said second hole , when n \: said vaivula body is in said second position; and means for preventing said at least one passageway from opening any of said equipment for first holes one to another.
2. 2. The valve against cross-connection "the conformity with claim 1, further characterized in that said vavula body has a third position that closes all said equipment for first holes to said third hole.
3. 3. The valve with cross-contamination according to claim 2, further characterized in that said knob includes a sign that indicates said prnner orifice when said vavula body is in said first position and points said second orifice when said vavula body It is in said second position.
4. 4. The cross-contamination valve according to claim 3, further characterized in that said prevention means includes said vault housing having a first stop barrier and a second stop barrier; said valve body being constrained to rotate between said first stop barrier and said second stop barrier.
5. 5. The cross-contamination valve according to claim 2, further characterized in that said at least one passageway, said prunei passageway and said second passage are a single passageway.
6. 6. The valve against cross contamination in accordance with claim 2, further characterized in that said at least one passage includes an angled passageway; and said first hole is substantially aligned with said second hole, both of which are substantially orthogonal to said third hole.
7. 7. The valve with cross-contamination according to claim 2, further characterized in that said first passage is substantially parallel to said second passageway.
8. 8. The cross-contamination valve according to claim 7, further characterized in that said first-hole equipment includes at least one additional hole; and said valve body includes at least three passages substically parallel to one another.
9. 9. Equipment for blood / solution of type Y against cross-contamination, comprising: a first section of tubing having a bag connector mounted on an extr-emo; a second section of pipe having a connector for a bag mounted on one end. A valve against cross contamination that has a first hole equipment that includes a first hole and a second hole, said first hole being fixed to the other end of said first section of pipe, being fixed to said second hole at the other end of said second section of pipe, said valve also having a third hole different from said equipment for first holes and means to prevent the flow of fluid between any of said equipment for first holes; a drop former attached to said third hole; a drip chamber attached to said droplet former; a third section of pipe with one end fixed to said drip chamber and an injection hole mounted on its other end; a clamp mounted around said third section of pipe; and a fourth section of pipe with one end fixed to said injection hole and a connector on its other end.
10. 10. - The blood equipment / solution of the Y and cross-contamination in accordance with claim 9, further characterized in that said valve includes: a vault housing having said first hole, said second hole and said third hole that open to a hollow interior; a valve body mounted rotatable within said hollow interior and having at least one passage of fluid therethrough; said at least one passage including a first fluid passage opening said first hole and said third hole when said valve body is rotated to a first position with respect to said valve housing, said entire equipment being closed for first holes, except said optional part, when said valve body is in said position; said at least one passage including a second passageway of fluid opening said second orifice to said third orifice when said valve body is rotated to said second position with respect to said valve housing, said entire device being closed for first holes , except said second hole, when said vavula body is in said second position; and means for preventing said at least one fluid passageway from opening any such first-hole equipment from one to another.
11. 11.- The equipment for blood / solution of type Y against cross contamination in accordance with the reiviication 10, character-hoisted further because said body vaivula has a third position that closes all said equipment for first holes and said third hole.
12. 12. Equipment for blood / solution of type Y against cross contamination according to the claim 11, further characterized in that said knob includes a sign indicating said first hole when said valve body is in said first position and indicates said second orifice when said valve body is in said second position.
13. 13.- The equipment for blood / solution of type Y against cross contamination according to the claim 12, further characterized in that said prevention means includes said vault housing having a first stop bar and a second stop barrier; said vaulula corpus being constrained between said first stop barrier and said second stop barrier.
14. 14. The equipment for blood / solution of type Y against cross contamination according to claim 13, further characterized in that said at least unique passageway, said first passageway and said second passageway are a single passageway.
15. 15. The kit for blood / solution of type Y with cross-contamination according to claim 11, further characterized in that said first passage is substantially parallel to < 1st second passage.
16. 16. The blood / solution type Y equipment comprising: a first length of pipe having a bag connector mounted on one end; a second length of pipe having a bag connector mounted on one end; a connector element with a first hole fixed to the other end of said first section of pipe, a second hole fixed to the other end of said second branch of pipe and a third hole; a valve having an inlet orifice, a first outlet orifice and a second outlet orifice, said inlet orifice being connected to said third orifice of said connector member; said vavula having a first position in which said inlet hole connects with said first outlet orifice, and said valve having a second position in which said inlet orifice is connected with said outlet orifice; a first filter with an outlet and an inlet connected to said first outlet orifice of said valve; a second orifice with an outlet and an inlet connected to said second exit orifice of said valve; said outlet of said first filter being joined with said outlet of said second filter in a connected heat; a drop former attached to said joined outlet. A drip chamber attached to said droplet for * er; a third section of pipe with an end fixed to said drip chamber and an injection hole mounted on its other end; a clamp mounted around said third section of pipe; and a fourth section of pipe with one end fixed to said injection hole and a connector on its other end.
17. 17. The pair-to-blood equipment / solution of type Y according to claim 16, further characterized in that said connector element is a Y-connector.
18. 18.- The equipment for blood / solution of type Y in accordance with the claim 16, further characterized in that said connector element is a valve against cross contamination.
19. 19. The equipment for blood / sol ution of type Y confor-rmclad with claim 16, further characterized because said vaivula is a vaivula with ra cross-contamination.
20. 20. The equipment for blood / solution type Y according to claim 16, further characterized in that said first filter is removable and replaceable with a new filter.
21. 21. The valve against cross contamination according to claim 1, further comprising a knob fixed to said valve body and extending out of said valve housing.
22. 22.- The vaivula against cross contamination in accordance with claim 21, further characterized in that said knob includes a sign indicating said first orifice when said vavula body is in said first position and indicates said second orifice when said vaivula body is in said second position.
23. 23. The device against cross-contamination of the type Y for blood / solution according to the r-ei vindication 10, which also comprises a knob fixed to said body of vavula and extending outside said vault of vaivula.
24. 24. Equipment against cross-contamination of the Y type for blood / solution in accordance with the reiv indication 23, further characterized in that said knob includes a sign indicating said first orifice when said body of vaivula is in said first position and indicates said second hole when said valve body is in said second position.