Abstract:
The breakaway assembly includes a first breakaway subassembly and a second breakaway subassembly. The subassemblies are configured to connect, which causes bellows sheaths in each subassembly to compress and open pores, allowing fluid to flow through the subassemblies. The subassemblies can be connected to luer tip. The luer tips can be connected to the an intravenous (IV) fluid line or other types of lines used in the medical field to move fluids. This allows the movement of fluid from a fluid-holding component to a patient. Unless the subassemblies are locked together, the subassemblies will be disconnected under the correct amount of pressure. This disconnection closes the pores on the subassemblies, which keeps fluid from leaking, and prevents the contamination of the IV line. Luer tips may also be connected to the subassemblies. Some of the luer tips allow for the quick connection of the luer tip to the subassembly through a flange being inserted into a notch or flange acceptor. This allows for the quick and easy replacement of components of a fluid transfer assembly.

Description:
RELATED APPLICATIONS 
     This application claims the benefit of a provisional application, Application No. 62/183,996, filed Jun. 24, 2015. 
    
    
     FIELD OF THE INVENTION 
     The present invention is related to medical access devices, and more particularly to a a connect and disconnect system for medical tubing. 
     BACKGROUND OF THE INVENTION 
     Medical access devices are used in the treatment of hospitalized patients for a variety of purposes, including intravenous catheters, feeding tubes, Foley catheters, chest tubes, and a variety of surgical drains. Many of these medical access devices transport fluids from or to the patient and use a variety of flexible tubes to give the patient a range of movement during treatment. Unfortunately, due to the freedom of movement that some patients exhibit, the tubing associated with medical access devices is often subjected to forces that cause damage to the tubing, the patient, or both. For example, the tubing typically used in the administration of intravenous fluids is often several feet long, and accordingly can become entangled on hospital beds or other medical equipment surrounding the patient. As the patient moves, the tubing can be stretched. In extreme cases (which occur with astonishing frequency), the fluids being administered to the patient, or the patient&#39;s own body fluids can be spilled, creating a risk of contamination to the patient&#39;s treatment environment, and potentially exposing the patient to a risk of infection. 
     Thus there is a need for a system that prevents such damage caused by such forces. There is a further need for such a system that can be used with the variety of existing medical devices, without alteration to such medical devices. Such a system is described below. 
     BRIEF SUMMARY OF THE INVENTION 
     A tubing system includes a distal tubing assembly, a breakaway assembly, a proximal tubing assembly, and an adapter assembly. The distal tubing assembly includes a distal tubing connected to a fluid source and a first luer tip. The luer tip is inserted into the breakaway assembly, which includes a first breakaway subassembly and a second breakaway subassembly. The first breakaway subassembly includes a first fluid passageway that engages the luer tip of the distal tubing assembly, and an elastomeric first bellows sheath positioned within a first sheath channel. The second breakaway subassembly includes a second fluid passageway, a second bellows sheath positioned within a second sheath channel, a luer connector ring positioned within a luer connector channel. The first breakaway subassembly and second breakaway subassembly are initially connected with their respective sheaths aligned. A lock selectively engages to prevent disconnection of the breakaway subassemblies. The proximal tubing assembly includes a proximal tubing connected to a second luer tip, which in turn engages the luer connector ring of the second breakaway subassembly. The adapter assembly engages the proximal tubing assembly via its third fluid passageway. The adapter assembly also includes a luer tip with a flange that can engage and secure a standard luer connection. 
     An alternative embodiment of a breakaway assembly includes a first breakaway subassembly and a second breakaway subassembly. The first breakaway subassembly includes a first fluid passageway, a first bellows sheath, and a first sheath channel. The first fluid passageway has a first pore that is in communication with the first sheath channel. The first bellows sheath is positioned within the first sheath channel. The first bellows sheath is preferably made of an elastomeric substance. It will be understood that the first bellows sheath is capable of being compressed into at least two different positions, a first position in which the first bellows sheath seals the first pore and a second position in which the first bellows sheath permits fluid to pass through the first pore. The first breakaway subassembly also includes flanges for securing the first breakaway subassembly to the second breakaway subassembly. The second breakaway subassembly includes a second fluid passageway, a second bellows sheath, a second sheath channel, a plurality of connector ring flange slots, a luer connection. The second bellows sheath is positioned within the second sheath channel. The second bellows sheath is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. The second fluid passageway extends through the second breakaway subassembly such that fluid can flow through the first breakaway subassembly, into the second pore, and out to the second fluid passageway. Specifically, the second fluid passageway has a second pore that is in communication with the second sheath channel. The second bellows sheath is capable of being compressed into at least two different positions, a first position in which the second bellows sheath seals the second pore and a second position in which the second bellows sheath permits fluid to pass through the second pore and into the second fluid passageway. 
     An alternative embodiment of a tubing system for use with the first breakaway subassembly and the second breakaway subassembly in the alternative breakaway assembly includes a first luer connection assembly, a second luer connection assembly, a proximal tubing, second luer tip, a first luer tip, and a distal tubing. The first luer connection assembly connects to the first breakaway subassembly, and the second luer connection assembly connects to the second breakaway subassembly. While the first and second breakaway assemblies are the preferred embodiment for the connection of the first and second luer connection assemblies, it will be understood that other breakaway assemblies disclosed herein can be modified for use with the first and second luer connection assemblies. The preferred first luer connection assembly includes a flange, threads, and a luer connection channel. Similarly, the second luer connection assembly includes a flange, threads, and a luer connection channel. The flange of the first luer connection assembly slides into the flange acceptor of the first luer tip with sufficient force, securely connecting the first luer connection assembly to the first luer tip. The threads of the first luer connection assembly connect to the tab of the first breakaway subassembly, securely connecting the first luer connection assembly to the first breakaway subassembly. The distal tubing is friction fitted to the first luer tip. It will be understood that these components of the invention may be connected in any order. The flange of the second luer connection assembly slides into the notch of the second breakaway subassembly with sufficient force, securely connecting the second luer connection assembly to the second breakaway subassembly. The second luer tip is connected to the threads of the second luer connection assembly, securely attaching the second luer tip to the second luer connection assembly. The proximal tubing is friction fitted to the second luer tip. It will be understood that these components of the invention may be connected in any order. The flanges being connected to the notch and the flange acceptor allows for the quick disconnect and replacement of the components tubing system, which is very advantageous in the medical field. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         FIG. 1  A perspective view of a preferred tubing system. 
         FIG. 2  A perspective view of a preferred breakaway assembly in its disconnected state. 
         FIG. 3  An exploded side view of a preferred breakaway assembly, with internal structure depicted with dashed lines. 
         FIG. 4  A side cross-sectional view of a distal assembly, a preferred breakaway assembly in its disconnected state and a proximal assembly. 
         FIG. 5  A side cross-sectional view of a distal assembly, a preferred breakaway assembly in its connected state, and a proximal assembly. 
         FIG. 6  A perspective view of a preferred adapter assembly in its disconnected state. 
         FIG. 7  An exploded side view of a preferred adapter assembly. 
         FIG. 8  A side cross-sectional view of a preferred adapter assembly in its disconnected state. 
         FIG. 9  A side cross-sectional view of a preferred adapter assembly in its connected state. 
         FIG. 10  A side cross-sectional view of an alternative embodiment of the breakaway assembly in its disconnected state. 
         FIG. 11  A side cross-sectional view of an alternative embodiment of the breakaway assembly in its connected state. 
         FIG. 12  An exploded side view of an alternative embodiment of the breakaway assembly, with internal structure depicted with dashed lines. 
         FIG. 13  A side cross-sectional view of an alternative embodiment of the breakaway assembly in its connected state. 
         FIG. 14  A side view of an alternative embodiment of the second breakaway assembly. 
         FIG. 15  A side, cross-sectional view of an alternative embodiment of the second breakaway assembly. 
         FIG. 16  A perspective view of the of an alternative embodiment second breakaway assembly. 
         FIG. 17  A side view of the of an alternative embodiment first breakaway assembly, with internal structure depicted with dashed lines. 
         FIG. 18  A perspective view of the of an alternative embodiment first breakaway assembly. 
         FIG. 19  A side view of a bellows sheath with internal structure depicted with dashed lines. 
         FIG. 20  A perspective view of a bellows sheath. 
         FIG. 21  A partial cross-section view of a bellows sheath. 
         FIG. 22  A perspective view of an alternative embodiment of a tubing system, disconnected. 
         FIG. 23  A side view of an alternative embodiment of a second luer connection assembly, with a first breakaway assembly, a second breakaway assembly, and bellows sheaths  234 ,  244  of the embodiment of  FIGS. 13-21 , with internal structure depicted with dashed lines. 
         FIG. 24  A side cross sectional view of the alternative embodiment of a tubing system, with the first breakaway assembly and second breakaway assembly disconnected. 
         FIG. 25  A side cross sectional view of the alternative embodiment of a tubing system, with the first breakaway assembly and second breakaway assembly connected. 
         FIG. 26  A perspective view of the alternative embodiment of a tubing system, connected. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       FIG. 1  shows a preferred embodiment of a tubing system  10  including a distal assembly  12 , a breakaway assembly  14 , a proximal assembly  16 , and an adapter assembly  18 . As depicted, the assemblies are connected in succession to each other. 
     Turning to  FIG. 4 , the preferred distal assembly  12  preferably includes a distal tubing  20  and a first luer tip  22 . The first luer tip  22  is friction fitted on one end of the distal tubing  20  as shown. The distal tubing  20  is connected to a fluid source (not shown). In the preferred embodiment, the fluid source is a container of an intravenous solution. In alternative embodiments the fluid source is an intracorporeal portion of a drain or tube. It will be understood by those skilled in the art that in other embodiments an infusion pump or other apparatus may be positioned between the distal assembly  12  and the fluid source. 
     Turning to  FIGS. 2-5 , the breakaway assembly  14  includes a first breakaway subassembly  30  and a second breakaway subassembly  40 .  FIG. 3  depicts the first breakaway subassembly  30  including a first fluid passageway  32 , a first bellows sheath  34 , a first sheath channel  35 , a first connector ring  36 , and a lock ring  38 . In the depicted embodiment, the first fluid passageway  32  is configured to receive the first luer tip  22  such that fluid from the distal assembly  12  flows through the first luer tip  22  and into the first fluid passageway  32 . The first fluid passageway  32  has a first pore  33  that is in communication with the first sheath channel  35 . The first bellows sheath  34  is positioned within the first sheath channel  35 . The first bellows sheath  34  is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. It will be understood that the first bellows sheath is capable of being compressed into at least two different positions, a first position in which the first bellows sheath  34  seals the first pore  33  (as shown in  FIG. 4 ) and a second position in which the first bellows sheath  34  permits fluid to pass through the first pore  33  (as shown in  FIG. 5 ). In the depicted embodiment, the first connector ring  36  includes a plurality of finger flanges  37  (shown in  FIG. 3 ). The first connector ring  36  is positioned around an exterior surface of the first breakaway subassembly  30 . 
     The second breakaway subassembly  40  includes a second fluid passageway  42 , a second bellows sheath  44 , a second sheath channel  45 , a plurality of connector ring flange slots  46 , a luer connection channel  47 , a luer connector ring  48 , a spring  51 , a luer release button  52 , an interior plate  53  and a lock post  145 . The second bellows sheath  44  is positioned within the second sheath channel  45 . The second bellows sheath  44  is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. The luer connection channel  47  is positioned within the second breakaway subassembly  40  and is separated from the second sheath channel  45  by the interior plate  53 . The luer connection channel  47  is configured to receive the spring  51  and the luer connector ring  48 . The spring  51  is positioned within the luer connection channel  47  and abuts the interior plate  53 . The luer connector ring  48  includes a release tab  49  and a plurality of luer connection flanges  50 , and is positioned within the luer connection channel  47 , pressing against the spring  51 . It will be understood that as the luer connector ring  48  is pressed within the luer connection channel  47 , the spring  51  is compressed against the interior plate  53 . With sufficient force, the luer connector ring  48  can be pressed into the luer connection channel  47  such that the release tab  49  engages a complementary geometric protrusion of the luer release button  52 , as shown in  FIGS. 4 and 5 . It will be further understood that when the release tab  49  engages the luer release button  52 , the luer connector ring  38  is secured within the luer connection channel  47  despite the force exerted by the spring  51  against the luer connector ring  38 . The second fluid passageway extends through the second breakaway subassembly  40  such that fluid from the distal assembly  12  can flow through the first breakaway subassembly  30 , into the second pore  43 , and out to the proximal assembly  16 . Specifically, the second fluid passageway  42  has a second pore  43  that is in communication with the second sheath channel  45 . The second bellows sheath  44  is capable of being compressed into at least two different positions, a first position in which the second bellows sheath  44  seals the second pore  43  (as shown in  FIG. 4 ) and a second position in which the second bellows sheath  44  permits fluid to pass through the second pore  43  (as shown in  FIG. 5 ). 
     The first breakaway subassembly  30  and the second breakaway subassembly  40  may be connected by aligning the first bellows sheath  34  with second bellows sheath  44  and pressing the two breakaway subassemblies together such that the finger flanges  37  of the first connector ring  36  engage the connector ring flange slots  46  that are positioned around the exterior of the second breakaway subassembly  40 , as shown in  FIG. 5 . It will be understood that when the two breakaway subassemblies  30 ,  40  are connected in this manner, the first bellow sheath  34  is compressed into the first sheath channel  35  in a manner that unseals the first pore  33 . Similarly, the second bellows sheath  44  is compressed in the second sheath channel  45  thereby unsealing the second pore  43 . When the two breakaway subassemblies  30 ,  40  are connected in this manner, a fluid path  100  is created that permits fluid to flow from the first fluid passageway  32  through the fluid path  100  and into the second fluid passageway  42 , as shown in  FIG. 5 . 
     Now the first breakaway subassembly  30  and second breakaway subassembly  40  may be disconnected when a sufficient force is applied to dislodge the finger flanges  37  of the first connector ring  36  from the connector ring flange slots  46 . When the two breakaway subassemblies  30 ,  40  are disconnected, the first pore  33  is sealed off as the first bellows sheath  34  expands within the first sheath channel  35 . Similarly, the second pore  43  is sealed off as the second bellows sheath  44  expands within the second sheath channel  45 . It will be understood that this creates a self-sealing system, such that if an accidental disconnection occurs, the breakaway assembly  14  will seal the fluid path in such a way that no fluid escapes the tubing system  10 . 
     It will be understood that the lock ring  38  of the first breakaway subassembly  30  can be adjusted circumferentially to engage or disengage the lock post  145  of the second breakaway subassembly  40  to achieve two states: a first state in which the breakaway subassemblies  30 ,  40  cannot be separated, and a second state that permits disconnection upon application of a sufficient force, which normally is 5 to 7 pounds of tension force. It will be further understood that to promote judicious infection control, reconnection of the subassemblies  30 ,  40  is discouraged. Preferably, the breakaway assembly  14  is delivered to the user in a connected state. In the event a force is applied to disconnect the two breakaway subassemblies  30 ,  40  from each other, the finger flanges  37  of the first breakaway subassembly  30  are configured to flex inward towards the central radius of the first breakaway subassembly  30  such that they can no longer clear the diameter of the second breakaway subassembly  40  to engage the connector ring flange slots  46 . This preferred mechanism prevents the breakaway subassemblies  30 ,  40  from being reconnected after they are initial disconnected. 
     The preferred proximal assembly  16  includes a second luer tip  60  and a proximal tubing  61 . The proximal tubing  61  is flush fitted within the second luer tip  60 . The second luer tip  60  engages the plurality of luer connection flanges  50  which secure the second luer tip  60  to the second breakaway subassembly  40  when the luer connector ring  48  is second within the luer connection channel  47 . 
       FIG. 6  depicts the adapter assembly  18 , which preferably includes a luer connector assembly  80 , which engages a standard luer tip  90 . Turning to  FIG. 7 , the luer connector assembly  80  includes an interior plate  81 , a third fluid passageway  82 , a luer connector ring  84 , a luer connection channel  87 , a luer release button  88 , and a spring outside the fluid path  89 . 
     The luer connection channel  87  is configured to receive the spring  89  and the luer connector ring  84 . The spring  89  is positioned within the luer connection channel  87  and abuts the interior plate  81 . The luer connector ring  84  includes a release tab  85  and a plurality of luer connection fingers  86 , and is positioned within the luer connection channel  87 , pressing against the spring  89 . It will be understood that as the luer connector ring  84  is pressed within the luer connection channel  87 , the spring  89  is compressed against the interior plate  81 . With sufficient force, the luer connector ring  84  can be pressed into the luer connection channel  87  such that the release tab  85  engages the luer release button  88 , as shown in  FIG. 9 . It will be further understood that when the release tab  85  engages the luer release button  88 , the luer connector ring  84  is secured within the luer connection channel  87  despite the force exerted by the spring  89  against the luer connector ring  84 . The third fluid passageway  82  extends through the luer connector assembly  80  such that fluid from the proximal assembly  16  flows through the luer connector assembly  80 . 
       FIGS. 8 and 9  show the luer tip  90 , which includes a connection flange  91 . Those skilled in the art will recognize that the luer tip  90  is standard luer tip used in typical catheter assembles known in the art. It will be understood that as a standard luer tip  90  engages the luer connector assembly  80 , the plurality of luer connection fingers  86  engage the connection flange  91 , and that as the luer tip  90  and luer connector ring  84  are pressed further into the channel, the luer connection fingers  86  are forced down behind the connection flange  91 . In this manner a luer tip  90  is secured to the luer connector assembly  80 . 
     Other alternative embodiments of each aspect of the disclosed tubing system  10  are possible. For example  FIGS. 10 and 11  depict such an alternative embodiment, wherein the elastomeric first and second bellows sheaths are replaced with pusher plates  134 ,  144  and springs  135 ,  136 . 
     Yet another alternative embodiment of a breakaway assembly  214  is shown in  FIG. 13 , which includes a first breakaway subassembly  230  and a second breakaway subassembly  240 . The first breakaway subassembly  230  includes a first fluid passageway  232 , a first bellows sheath  234 , and a first sheath channel  235 . The first fluid passageway  232  has a first pore  233  that is in communication with the first sheath channel  235 . The first bellows sheath  234  is positioned within the first sheath channel  235 . The first bellows sheath  234  is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. It will be understood that the first bellows sheath is capable of being compressed into at least two different positions, a first position in which the first bellows sheath  234  seals the first pore  233  (as shown in  FIGS. 4 and 24 ) and a second position in which the first bellows sheath  234  permits fluid to pass through the first pore  233  (as shown in  FIGS. 5, 13 and 25 ). The first breakaway subassembly  230  also includes flanges  237  for securing the first breakaway subassembly  230  to the second breakaway subassembly  240 . 
     The second breakaway subassembly  240  includes a second fluid passageway  242 , a second bellows sheath  244 , a second sheath channel  245 , a plurality of connector ring flange slots  246 , a luer connection  247 . The second bellows sheath  244  is positioned within the second sheath channel  245 . The second bellows sheath  244  is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. The second fluid passageway  242  extends through the second breakaway subassembly  240  such that fluid can flow through the first breakaway subassembly  230 , into the second pore  243 , and out to the second fluid passageway  242 . Specifically, the second fluid passageway  242  has a second pore  243  that is in communication with the second sheath channel  245 . The second bellows sheath  244  is capable of being compressed into at least two different positions, a first position in which the second bellows sheath  244  seals the second pore  243  (as shown in  FIGS. 4 and 24 ) and a second position in which the second bellows sheath  244  permits fluid to pass through the second pore  243  and into the second fluid passageway  242  (as shown in  FIGS. 5, 13 and 25 ). 
     In the alternative embodiment depicted in  FIGS. 13-21 , it will be understood that no proximal assembly  60  (as shown in  FIGS. 2 and 4-5 ) is needed as the second breakaway subassembly  240  includes a luer connection  247  that is in communication with the second fluid passageway  242  and is configured to accept a connection with typical luer locks  300  used in the field and known to those skilled to those in the art. 
     The first breakaway subassembly  230  and the second breakaway subassembly  240  may be connected by aligning the first bellows sheath  234  with second bellows sheath  244  and pressing the two breakaway subassemblies together such that the finger flanges  237  engage flange slots  246  that are positioned around the exterior of the second breakaway subassembly  240 , as shown in  FIG. 13 . It will be understood that when the two breakaway subassemblies  230 ,  240  are connected in this manner, the first bellow sheath  234  is compressed into the first sheath channel  235  in a manner that unseals the first pore  233 . Similarly, the second bellows sheath  244  is compressed in the second sheath channel  245  thereby unsealing the second pore  243 . When the two breakaway subassemblies  230 ,  240  are connected in this manner, a fluid path  200  is created that permits fluid to flow from the first fluid passageway  232  through the fluid path  200  and into the second fluid passageway  242 , as shown in  FIG. 13 . It should be noted that flow of the fluid path  200  is not obstructed by the operation of the bellows sheaths  234 ,  244  because the bellows sheaths are outside of the flow path of the fluids. 
     The first breakaway subassembly  230  and second breakaway subassembly  240  may be disconnected when a sufficient force, which normally is 5 to 7 pounds of tension force, is applied to dislodge the finger flanges  237  from the flange slots  246 . When the two breakaway subassemblies  230 ,  240  are disconnected, the first pore  233  is sealed off as the first bellows sheath  234  expands within the first sheath channel  235 . Similarly, the second pore  243  is sealed off as the second bellows sheath  44  expands within the second sheath channel  245 . It will be understood that this creates a self-sealing system, such that if an accidental disconnection occurs, the breakaway assembly  214  will seal the fluid path in such a way that no fluid escapes the tubing system  10 . 
     The first breakaway subassembly  230  and the second breakaway subassembly  240  may also be locked into place. As shown in  FIG. 17 , the first breakaway subassembly  230  also includes a locking tab  220 . The locking tab  220  is configured to be inserted into a locking slot  210  on the second breakaway subassembly  240 , shown in  FIG. 15 . The locking slot  210  is configured so that when the locking tab  220  is inserted into the locking slot  210  and the first breakaway subassembly  230  is rotated relative to the section breakaway subassembly  240 , the first breakaway subassembly  230  and the second breakaway subassembly are locked together. While locking the first breakaway subassembly  230  to the second breakaway subassembly  240  is possible, it is not necessary for the invention to perform its purpose as described above. It will be understood that the invention can be engaged in two separate states: a first state where the first breakaway subassembly  230  cannot be disconnected from the second breakaway subassembly  240  because the locking tab  220  is engaged and rotated into the locking slot  210 ; and a second state where sufficient force (which is normally between 5 and 7 lbs. of tension force) allows disconnection of the first breakaway subassembly  230  and the second breakaway subassembly  240 . It will be understood that in the first state, the first breakaway subassembly  230  and the second breakaway subassembly  240  must be rotated in opposite directions to unlock the device before the finger flanges  237  can be dislodges from the flange slots  246 . 
     The second breakaway subassembly  240  is further shown in a disconnected state in  FIGS. 14, 15, and 16 . The second breakaway assembly  240  of  FIGS. 14 and 16  include flange slots  246 , the locking slot  210 , and a second luer tip connection  260 .  FIG. 15  shows a second breakaway assembly  240  that includes second bellows sheath channel  245 , second pore  243 , and second fluid passageway  242 . 
     The first breakaway subassembly  230  is further shown in a disconnected state in  FIGS. 17 and 18 . The first breakaway assembly  230  of  FIG. 17  includes finger flanges  237 , a locking tab  220 , a first fluid passageway  232 , first bellows sheath channel  235 , a first luer connection  222 , and pores  233 . The first breakaway assembly  230  of  FIG. 18  includes finger flanges  237 , locking mechanisms  220 , and a first luer connection  222 . 
       FIGS. 19, 20, and 21  show the bellows sheaths  234 ,  244  in the state when the first breakaway subassembly  230  and the second breakaway subassembly  240  are disconnected, as in  FIGS. 14-18 . When a force is applied to the first breakaway subassembly  230  and the second breakaway subassembly  240  during connection, the bellows sheaths  234 ,  244  compress, resulting in the opening of the pores  233 ,  243  (shown in  FIG. 13 ). Once the pores  233 ,  243  open, the fluid may flow through the subassemblies  230 ,  240 . 
     Importantly, in the preferred and alternative embodiments of the tubing system  10 ,  400 , all components are made of non-metallic substances, such as plastic and elastomeric substances, which is beneficial for imaging and other procedures in the medical field that prohibit the use of metallic substances during those procedures. 
     An alternative embodiment of a tubing system  400  for use with the first breakaway subassembly  230  and the second breakaway subassembly  240 , as illustrated in  FIGS. 13-21  and detailed above, is shown in  FIG. 22 . The tubing system  400  includes a first luer connection assembly  410 , a second luer connection assembly  420 , a proximal tubing  416 , second luer tip  480 , a first luer tip  482 , and a distal tubing  412 . The first luer connection assembly  410  connects to the first breakaway subassembly  230 , and the second luer connection assembly  420  connects to the second breakaway subassembly  240 . While the first and second breakaway assemblies  230 ,  240  are the preferred embodiment for the connection of the first and second luer connection assemblies  410 ,  420 , it will be understood that other breakaway assemblies disclosed herein can be modified for use with the first and second luer connection assemblies  410 ,  420 . 
     Turning to  FIG. 24 , the first breakaway subassembly  230  includes a first fluid passageway  232 , a first bellows sheath  234 , a notch  450 , and a first sheath channel  235 . The first fluid passageway  232  has a first pore  233  that is in communication with the first sheath channel  235 . The first bellows sheath  234  is positioned within the first sheath channel  235 . The first bellows sheath  234  is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. It will be understood that the first bellows sheath is capable of being compressed into at least two different positions, a first position in which the first bellows sheath  234  seals the first pore  233  (as shown in  FIG. 24 ) and a second position in which the first bellows sheath  234  permits fluid to pass through the first pore  233  (as shown in FIG.  25 ). The first breakaway subassembly  230  also includes flanges  237  for securing the first breakaway subassembly  230  to the second breakaway subassembly  240 . 
     The second breakaway subassembly  240  includes a second fluid passageway  242 , a second bellows sheath  244 , a second sheath channel  245 , a plurality of connector ring flange slots  246 , a notch, and a luer connection channel  247 . The second bellows sheath  244  is positioned within the second sheath channel  245 . The second bellows sheath  244  is preferably made of an elastomeric substance. The elastomeric substance is preferably USP class VI liquid silicone rubber. The second fluid passageway  242  extends through the second breakaway subassembly  240  such that fluid can flow through the first breakaway subassembly  230 , into the second pore  243 , and out to the second fluid passageway  242 . Specifically, the second fluid passageway  242  has a second pore  243  that is in communication with the second sheath channel  245 . The second bellows sheath  244  is capable of being compressed into at least two different positions, a first position in which the second bellows sheath  244  seals the second pore  243  (as shown in  FIG. 24 ) and a second position in which the second bellows sheath  244  permits fluid to pass through the second pore  243  and into the second fluid passageway  242  (as shown in  FIG. 25 ). The operation and connection of the breakaway subassemblies  230 ,  240  are explained in more detail above. 
     The preferred first luer connection assembly  410  includes a flange  452 , threads  470 , and a luer connection channel  430 . Similarly, the second luer connection assembly  420  includes a flange  452 , threads  470 , and a luer connection channel  430 . 
     The flange  452  of the first luer connection assembly  410  slides into the flange acceptor  454  of the first luer tip  482  with sufficient force, securely connecting the first luer connection assembly  410  to the first luer tip  482 . The threads  470  of the first luer connection assembly  410  connect to the tab  490  of the first breakaway subassembly  230 , securely connecting the first luer connection assembly  410  to the first breakaway subassembly  230 . The distal tubing  416  is friction fitted to the first luer tip  482 . It will be understood that these components of the invention may be connected in any order. 
     The flange  452  of the second luer connection assembly  420  slides into the notch  450  of the second breakaway subassembly  240  with sufficient force, securely connecting the second luer connection assembly  420  to the second breakaway subassembly  240 . The second luer tip  480  is connected to the threads  470  of the second luer connection assembly  420 , securely attaching the second luer tip  480  to the second luer connection assembly. The proximal tubing  416  is friction fitted to the second luer tip  480 . It will be understood that these components of the invention may be connected in any order. 
     The flanges  452  being connected to the notch  452  and the flange acceptor  454  allows for the quick disconnect and replacement of the components tubing system  400 , which is very advantageous in the medical field. 
     Turning to  FIG. 25  shows the embodiment of  FIG. 24 , but displays the connection of the first breakaway assembly  230  and the second breakaway assembly  240 . 
       FIG. 26  shows the embodiment of  FIG. 25 , with the addition of a luer adaptor  518 . 
       FIG. 23  shows a first breakaway subassembly  230 , a second breakaway subassembly  240 , a first bellows sheath  234 , a second bellows sheath  244 , and a second luer connection assembly  420 . One should appreciate that the bellows sheaths  234 ,  244  have been removed from the first breakaway subassembly  230  and the second breakaway subassembly  240  in  FIG. 23  for illustration purposes. 
     It is clear that the present invention is well adapted to carry out its objectives and attain the ends and advantages mentioned above as well as those inherent therein. While presently preferred embodiments of the invention have been described in varying detail for purposes of disclosure, it will be understood that numerous changes may be made which will readily suggest themselves to those skilled in the art and which are encompassed within the spirit of the invention disclosed herein.