CA1125134A - Apparatus for administering incompatible i.v. liquids - Google Patents
Apparatus for administering incompatible i.v. liquidsInfo
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- CA1125134A CA1125134A CA301,440A CA301440A CA1125134A CA 1125134 A CA1125134 A CA 1125134A CA 301440 A CA301440 A CA 301440A CA 1125134 A CA1125134 A CA 1125134A
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- incompatible
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Abstract
APPARATUS FOR ADMINISTERING
INCOMPATIBLE I.V. LIQUIDS
Abstract of the Disclosure An apparatus for separately administering two or more incompatible materials to a recipient through a common injection site. An I.V. administration set is interconnected to one inlet arm of a junction means and another arm of the junction means provides an entry for an additional liquid conveying means represented by an additional I.V. administra-tion set or a hypodermic syringe. To the opposite end of the junction means is secured a length of tubing ultimately con-nected to a hypodermic needle. In one embodiment, the tubing extending from the junction means to the hypodermic needle has an inner smaller diameter tubing interconnected to one of the inlet ports in the junction means. In another embodi-ment, the junction means has separate flow paths and the tub-ing extending from the junction to the hypodermic needle has a partition extending longitudinally within the tubing to provide separate flow paths for the liquids entering through the junction means and ultimately to the hypodermic needle.
INCOMPATIBLE I.V. LIQUIDS
Abstract of the Disclosure An apparatus for separately administering two or more incompatible materials to a recipient through a common injection site. An I.V. administration set is interconnected to one inlet arm of a junction means and another arm of the junction means provides an entry for an additional liquid conveying means represented by an additional I.V. administra-tion set or a hypodermic syringe. To the opposite end of the junction means is secured a length of tubing ultimately con-nected to a hypodermic needle. In one embodiment, the tubing extending from the junction means to the hypodermic needle has an inner smaller diameter tubing interconnected to one of the inlet ports in the junction means. In another embodi-ment, the junction means has separate flow paths and the tub-ing extending from the junction to the hypodermic needle has a partition extending longitudinally within the tubing to provide separate flow paths for the liquids entering through the junction means and ultimately to the hypodermic needle.
Description
Back~round of the Invention This invention relates to an apparatus which can administer incompatible liquids to a recipient through a com-mon injection site. More particularly, this invention relates to a device which can convey incompatible I.V. solutions through a common length of tubing to a hypodermic needle where-in the tubing either is provided with an inner, smaller di-ameter tubing or has a partition for forming the tubing into two separate passages, An administration device of the type concerned with in this invention is described in U. S. Patent 3,941,126.
This particular patented unit discloses a multiplicity of chambers for each drug, a particular type of manifolding sys-tem as well as a multiplicity of lengths of tubing leading into and out of the chambers in order to administer various types of drug components to a patient. Coaxial type tubing members for either conveying fluids or collecting fluids from a patient are described in U. S. Patents 3,470,869; 3,512,517;
3,610,-226 and 3,983,864. These prior art units either involve a multiplicity of components making them complicated to han-dle and expensive to produce or are not concerned with an ap-paratus for administering two incompatible materials to a common injection site.
It is an advantage of the present invention to pro-vide a novel apparatus for administering incompatible liquids through a common injection site of a patient. Other advan-tages are an administration apparatus fpr administering in-compatible liquids to a patient which involves a minimum num-' ~12~134 ber of parts; is simple in its construction and consequentlyreduces costs in its manufacture, making the unit highly de-sirable as a disposable intravenous administration set; is adaptable to being used in conjunction with one or more stand-ard I.V. administration sets and also provides for adminis-tration from a hypodermic syringe.
Summary of the Invention The foregoing advantages are accomplished and the shortcomings of the prior art are overcome by the present ap-paratus for administering incompatible parenteral liquidsfrom at'least two separate liquid sources which utilizes at least one liquid-tight connection means for communicating with a parenteral liquid in a parenteral liquid container.
A first length of flexible tubing is secured to the connec-tion means. The tubing has a standard flow control devicesuch as an adjustable tubing clamp and a sight-drip chamber in communication with the flexible tubing. A second length o flexible tubing is provided which has means to define at' least two separate flow paths within the length of tubing.
Junction means separately interconnect the first length of tubing with one of the fLow paths in the second length of tubing. In one instance, the junction means provides a con-- nection from a second I.V. administration set to a separate passage in the second length of tubing. In another instance, a reseal injection site is provided in the junction-means which provides a separate interconnection to a separate pas-sage in the second length of tubing. A hypodermic,needle is secured to the second length of tubing opposite the junction .Icans. In one eTnbodiTneTIt~ the two separate passages are provided in the second length oE tubing by means of a smaller diameter tubing contained within the second length of tubing.
In another embodiment, the dual passage is afforded by means of a partition which extends longitudinally throughout the second length of tubing.
In one particular aspect the present invention provides an apparatus for administering incompatible parenteral liquids -Erom at least two containers to a recipient compri-sing: -at least two liquid-tight connection means for communicating with said liquid in said containers;
first lengths of flexible tubing secured to each said connection means at one end;
means to control the flow rate of liquid through each said first lengths of flexible tubing;
a sight-drip chamber in fluid communication with each said first lengths of flexible tubing and said connection means;
a second length of flexible tubing;
means defining at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first lengths of tubing with said separate flow paths in said second length of tubing;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
In another particular aspect the present invention provides an apparatus for administering incompatible parenteral liquids from at least two separate liquid sources comprising:
jl/ -4-li2;~134 a liquid-tight connection means for communicating with said liquid in said liqu:id source;
a first length of flexible tubing secured to said connection means at one end;
means to control the flow rate of liquid through said first length of flexible tubing;
a sight-drip chamber in fluid communication with said first length of flexible tubing and said connection means;
a second length of flexible tubing;
means to define at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first length of tubing with one of said separate flow paths in said second length of tubing and providing fluid communication .
with said other flow path;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
Brief Description of the Drawing A better understanding of the apparatus for administering incompatible liquids through a common injection site will be accomplished by reference to the drawings wherein:
Figure 1 is a view in side elevation with parts broken away showing the apparatus of this invention operatively interconnected to two separate sources of I.V. solution.
Figure 2 is a view of an alternative embodiment of the apparatus for administering incompatible liquids.
Figure 3 is a view in horizontal section taken along line 3-3 of Figure 2.
Figure 4 is a view similar to Figure 1 showing still a 4a-~Z5134 furLher embocl:imen~ of this invention.
Description _f the Preferred Embodiments Proceecting to a detailed description of one embodiment of the present lnventi.on, the apparatus for administering fluids 10 is shown in Figure 1 in conjunction with conventional parenteral solution containers 12 and 12a which are supported by bails 14 and 14a. The solution containers have the usual pierceable stoppers 16 and 16a for engagement with piercing pin assemblies 17 and 17a. The pin assemblies a.re jl/ -4b-provided with air vent passages 18 and 18a which also have air filters 19 and l9a. Disposed in the pin assemblies is an air ball-check valve such as 20. Fluid passage 22 is also provided in the piercing pin assemblies which communicates with a sight-drip chamber 24 and similarly 24a secured to the pin assemblies. First lengths of tubing 25 and 25a extend from the sight-drip chambers on which are disposed roller-type tubing clamps 27 and 27a. Tubing 25 and 25a are secured to a Y junction means 30 and are disposed in the usual manner in separate inlet ports 39 and 38, respectively. Extending from outlet port 40 of the Y junction is a second length of tubing 32 which in effect forms an outer tubing housing for an inner and smaller diameter length of tubing 34. Inner tubing 34 is in fluid-tight communication with tubing 25a and extends from inlet port 38 in junction 30 through the-outlet port 40, throughout the length of outer tubing 32 and beyond the end thereof into luer adapter 36. A hypodermic needle 37 is attached to the end of luer adapter 36 by means of luer extension 43.
In FIGURES 2 and 3, another embodiment 50 of the invention is described wherein in place of the previously il-lustrated inner tubular member 34 in the oùter tube 32 a length of tubing 62 is provided with a diametrically extend-ing partition 67. In this embodiment, the partition 67 wiil extend from the Y junction 53 to the end of tubing 62 which will be secured to a luer adapter such as 36. It will also be noted in this particular e:mbodiment 50, that the Y junc-tion 53 is provided with separate passageways 59 and 60 ex-~2~34 tending from inlet ports 55 and 56 which also accommodate first lengths of tubing 51 and 52. Interconnection between passages 59 and 60 in junction 53 with the dual passages 69 and 70 in the second length of tubing 62 is afforded by con-nector 63 which also has flow passages 64 and 65.
Still another embodiment is shown in FIGURE 4 where-in similar parts corresponding with those in embodiment 10 are described with similar numbers except they are in the "100" series. This unit is similar to that described for unit 10 in employing the inner tubing 134 in the outer tubing 132 so as to provide two separate passages from junction 130 to needle 137. The main difference between unit 10 and 110 is that in place of a length of tubing such as 25a extending from an I.V. solution container to the junction 130, a reseal device 142 is disposed over the end of inlet port 138. This provides an injection site for a different and incompatible liquid to be injected into port 138, through tubing 134, and ultimately to the patient by means of hypodermic needle 137.
Operation A better understanding of the advantages of the apparatus for administering incompatible liquids will be had by a description of its operation. Embodiments 10, 50 and 110 will basically be utilized in the same manner so that the following remarks pertaining to unit 10 will apply to unit 50 as well as unit 110 except where specific differ-ences are indicated. Solution container 12 will contain an I.V. solution such as amino acids and solution container 12a will contain a different and incompatible liquid ~i25134 such as fat emulsion. When it is desired to administer these I.V. solutions to a patient, the solution containers will be supported in the customary manner by means of bails 14 and 14a. The piercing pins such as 21 of piercing pin assemblies 17 and 17a will be inserted through pierceable stoppers 16 and 16a in the usual manner so that communication is made - with the fluids inside the containers 12 and 12a and the sight-drip chambers 24 and 24a. Tubing clamps 27 and 27a will be in an open position and the sets 11 and 13 will be primed with both fluids in the same manner as if only a single set were being employed. After priming, hypodermic needle 37 will be positioned in a vein and, depending upon which liquid in con-: tainer 12 or 12a is to be administered first tubing clamp 27 or 27a will be moved to completely close tubing 25 or 25a.
Assuming the solution in container 12 is to be administered first, tubing clamp 27a will be moved to a closed position and clamp 27 adjusted so that the flow rate is at a desired level which can be determined by the drops formed at the end of fluid passage 22 in piercing pin assembly 17. Liquid will flow from a sight-drip chamber 24 through tubing 25 and into Y junction 30. As Y junction 30 is hollow, a fluid passage is provided from the inlet port 39 to the outlet port 40.
The liquid will flow into tubing 32, around tubing 34, and into luer adapter 36. FIow will proceed from luer adapter 36 into hypodermic needle 37 and to the patient.
When it is desired to administer the incompatible flùid in container 12a, clamp 27 will be moved to a closed position and clamp 27a opened so as to control the flow ràte g~2~,~34 as previously described for I.V. set 11. Liquid will flow from container 12a through the piercing pin assembly 17a, in-to sight-drip chamber 24a and through tubing 25a into the junction 30. The liquid will enter into inlet port 38 and into the inner tubing 34 inside tubing 32 where it will emp-ty into the hollow luer adapter 36 and utlimately into hypo-dermic needle 37 and to the patient.
The operation of unit 50 shown in FIGURES 2 and 3 is substantially the same as previously described except that instead of the hollow bodied member forming the Y junction 30 as in unit 10, with an inner tube 34 extending therethrough, the junction 53 has the two passages 59 and 60 communicating with first lengths of tubing 52 and 51, respectively. Fluid will flow in through either tubing 51 and 52, through the in-terconnecting passageways 59 and 60, into the flow passages ;~ 64 and 65 of connector 63 and then into the passage either 69 or 70 of tubing 62. In any event, the two liquid materials will be separated throughout their flow path ~ntil they ulti-mately reach the luer adapter 36 wherefrom they will flow in-to hypodermic needle 37.
Unit 110 shown in FIGURE 4 will operate substanti-ally the same as unit 10 except that in place of the additional I.V. set 13, an incompatible material can be placed in inner tube 134 by a separate liquid conveying means such as a hypo-dermic syringe. The needle will pierce through the reseal142 to cause a flow of material through tubing 134 and ulti-mately to hypodermic needle 137.
It will be recognized in the foregoing description, 1~2~34 that the incompatible I.V. liquids are separated in their flow from separate sources, through a common junction and - from the common junction by means of independent passageways which ultimately lead to a hypodermic needle. These independ-ent passageways whether formed from one tube in another or by means of a partition afford a unitary and easy-to-handle - device.
In the embodiments described herein a dual passage is afforded in the tubing 32 and 132. It will be recognized that additional lengths of tubing could either be placed in the outer tubing or concentrically disposed therein although this could pose some problem in manufacture. This would also be true of the partition 67 in tubing 62. Additional parti-tions could be provided to provide additional flow paths.
However, the connections in the junctions 30, 52 and 130 would require additional cost in providing connections to the tubing.
As indicated earlier, the units of this invention are disposable and are manufactured from plastic materials.
The preferred plastic composition for manufacturing the junc-tions 30, 53 and 130 are acrylics although others such as ABS, PVC, polycarbonates, etc. could be employed. Likewise tubing 32, 34, 62, 132 and 134 are of a standard variety and composed of polyvinyl chlorides. However, other flexible plastic ma-terials such as urethane, elastomeric copolymers, etc. couldbe utilized. The preferred manner for making the tubing con-nection such as tubing 25, 25a; 51, 52 and 125 to the respec-tive junctions 30, 53 and 130 is solvent sealing. This would ~. .
; _9_ il25~34 also apply to the connection of tubing 32 to junction 30;
tubing 34 to inlet port 38; tubing 62 to connector 63 and likewise the connections of tubing 132 and 134 to junction 130.
It will thus be seen that through the present in-vention there is now provided an apparatus for administering - incompatible liquids which requires a minimum number of com-ponents and yet is highly effective in separating them through their flow from an I.V. container source to a common hypoder-mic needle. Accordingly, only one injection need be made in the patient in order to administer the incompatible materials.
Because of the unique manner in which the I.V. liquids are separated until they reach the hypodermic needle, only a sin-gle length of tubing need be handled which reduces the risk of unintentional interruption such as by pinching off or in the instance where several lengths of tubing would be employed, their becoming entangled. The device of this invention can be manufactured from existing parts and utilizes a minimum number of components all leading to a reduction in cost of its manufacture.
The foregoing invention can now be practiced by those skilled in the art. Such skilled persons will know that the invention is not neceasarily restricted to the par-ticular embodiments presented herein. The scope of the in-vention is to be defined by the terms of the following claimsas given meaning by the preceding description.
This particular patented unit discloses a multiplicity of chambers for each drug, a particular type of manifolding sys-tem as well as a multiplicity of lengths of tubing leading into and out of the chambers in order to administer various types of drug components to a patient. Coaxial type tubing members for either conveying fluids or collecting fluids from a patient are described in U. S. Patents 3,470,869; 3,512,517;
3,610,-226 and 3,983,864. These prior art units either involve a multiplicity of components making them complicated to han-dle and expensive to produce or are not concerned with an ap-paratus for administering two incompatible materials to a common injection site.
It is an advantage of the present invention to pro-vide a novel apparatus for administering incompatible liquids through a common injection site of a patient. Other advan-tages are an administration apparatus fpr administering in-compatible liquids to a patient which involves a minimum num-' ~12~134 ber of parts; is simple in its construction and consequentlyreduces costs in its manufacture, making the unit highly de-sirable as a disposable intravenous administration set; is adaptable to being used in conjunction with one or more stand-ard I.V. administration sets and also provides for adminis-tration from a hypodermic syringe.
Summary of the Invention The foregoing advantages are accomplished and the shortcomings of the prior art are overcome by the present ap-paratus for administering incompatible parenteral liquidsfrom at'least two separate liquid sources which utilizes at least one liquid-tight connection means for communicating with a parenteral liquid in a parenteral liquid container.
A first length of flexible tubing is secured to the connec-tion means. The tubing has a standard flow control devicesuch as an adjustable tubing clamp and a sight-drip chamber in communication with the flexible tubing. A second length o flexible tubing is provided which has means to define at' least two separate flow paths within the length of tubing.
Junction means separately interconnect the first length of tubing with one of the fLow paths in the second length of tubing. In one instance, the junction means provides a con-- nection from a second I.V. administration set to a separate passage in the second length of tubing. In another instance, a reseal injection site is provided in the junction-means which provides a separate interconnection to a separate pas-sage in the second length of tubing. A hypodermic,needle is secured to the second length of tubing opposite the junction .Icans. In one eTnbodiTneTIt~ the two separate passages are provided in the second length oE tubing by means of a smaller diameter tubing contained within the second length of tubing.
In another embodiment, the dual passage is afforded by means of a partition which extends longitudinally throughout the second length of tubing.
In one particular aspect the present invention provides an apparatus for administering incompatible parenteral liquids -Erom at least two containers to a recipient compri-sing: -at least two liquid-tight connection means for communicating with said liquid in said containers;
first lengths of flexible tubing secured to each said connection means at one end;
means to control the flow rate of liquid through each said first lengths of flexible tubing;
a sight-drip chamber in fluid communication with each said first lengths of flexible tubing and said connection means;
a second length of flexible tubing;
means defining at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first lengths of tubing with said separate flow paths in said second length of tubing;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
In another particular aspect the present invention provides an apparatus for administering incompatible parenteral liquids from at least two separate liquid sources comprising:
jl/ -4-li2;~134 a liquid-tight connection means for communicating with said liquid in said liqu:id source;
a first length of flexible tubing secured to said connection means at one end;
means to control the flow rate of liquid through said first length of flexible tubing;
a sight-drip chamber in fluid communication with said first length of flexible tubing and said connection means;
a second length of flexible tubing;
means to define at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first length of tubing with one of said separate flow paths in said second length of tubing and providing fluid communication .
with said other flow path;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
Brief Description of the Drawing A better understanding of the apparatus for administering incompatible liquids through a common injection site will be accomplished by reference to the drawings wherein:
Figure 1 is a view in side elevation with parts broken away showing the apparatus of this invention operatively interconnected to two separate sources of I.V. solution.
Figure 2 is a view of an alternative embodiment of the apparatus for administering incompatible liquids.
Figure 3 is a view in horizontal section taken along line 3-3 of Figure 2.
Figure 4 is a view similar to Figure 1 showing still a 4a-~Z5134 furLher embocl:imen~ of this invention.
Description _f the Preferred Embodiments Proceecting to a detailed description of one embodiment of the present lnventi.on, the apparatus for administering fluids 10 is shown in Figure 1 in conjunction with conventional parenteral solution containers 12 and 12a which are supported by bails 14 and 14a. The solution containers have the usual pierceable stoppers 16 and 16a for engagement with piercing pin assemblies 17 and 17a. The pin assemblies a.re jl/ -4b-provided with air vent passages 18 and 18a which also have air filters 19 and l9a. Disposed in the pin assemblies is an air ball-check valve such as 20. Fluid passage 22 is also provided in the piercing pin assemblies which communicates with a sight-drip chamber 24 and similarly 24a secured to the pin assemblies. First lengths of tubing 25 and 25a extend from the sight-drip chambers on which are disposed roller-type tubing clamps 27 and 27a. Tubing 25 and 25a are secured to a Y junction means 30 and are disposed in the usual manner in separate inlet ports 39 and 38, respectively. Extending from outlet port 40 of the Y junction is a second length of tubing 32 which in effect forms an outer tubing housing for an inner and smaller diameter length of tubing 34. Inner tubing 34 is in fluid-tight communication with tubing 25a and extends from inlet port 38 in junction 30 through the-outlet port 40, throughout the length of outer tubing 32 and beyond the end thereof into luer adapter 36. A hypodermic needle 37 is attached to the end of luer adapter 36 by means of luer extension 43.
In FIGURES 2 and 3, another embodiment 50 of the invention is described wherein in place of the previously il-lustrated inner tubular member 34 in the oùter tube 32 a length of tubing 62 is provided with a diametrically extend-ing partition 67. In this embodiment, the partition 67 wiil extend from the Y junction 53 to the end of tubing 62 which will be secured to a luer adapter such as 36. It will also be noted in this particular e:mbodiment 50, that the Y junc-tion 53 is provided with separate passageways 59 and 60 ex-~2~34 tending from inlet ports 55 and 56 which also accommodate first lengths of tubing 51 and 52. Interconnection between passages 59 and 60 in junction 53 with the dual passages 69 and 70 in the second length of tubing 62 is afforded by con-nector 63 which also has flow passages 64 and 65.
Still another embodiment is shown in FIGURE 4 where-in similar parts corresponding with those in embodiment 10 are described with similar numbers except they are in the "100" series. This unit is similar to that described for unit 10 in employing the inner tubing 134 in the outer tubing 132 so as to provide two separate passages from junction 130 to needle 137. The main difference between unit 10 and 110 is that in place of a length of tubing such as 25a extending from an I.V. solution container to the junction 130, a reseal device 142 is disposed over the end of inlet port 138. This provides an injection site for a different and incompatible liquid to be injected into port 138, through tubing 134, and ultimately to the patient by means of hypodermic needle 137.
Operation A better understanding of the advantages of the apparatus for administering incompatible liquids will be had by a description of its operation. Embodiments 10, 50 and 110 will basically be utilized in the same manner so that the following remarks pertaining to unit 10 will apply to unit 50 as well as unit 110 except where specific differ-ences are indicated. Solution container 12 will contain an I.V. solution such as amino acids and solution container 12a will contain a different and incompatible liquid ~i25134 such as fat emulsion. When it is desired to administer these I.V. solutions to a patient, the solution containers will be supported in the customary manner by means of bails 14 and 14a. The piercing pins such as 21 of piercing pin assemblies 17 and 17a will be inserted through pierceable stoppers 16 and 16a in the usual manner so that communication is made - with the fluids inside the containers 12 and 12a and the sight-drip chambers 24 and 24a. Tubing clamps 27 and 27a will be in an open position and the sets 11 and 13 will be primed with both fluids in the same manner as if only a single set were being employed. After priming, hypodermic needle 37 will be positioned in a vein and, depending upon which liquid in con-: tainer 12 or 12a is to be administered first tubing clamp 27 or 27a will be moved to completely close tubing 25 or 25a.
Assuming the solution in container 12 is to be administered first, tubing clamp 27a will be moved to a closed position and clamp 27 adjusted so that the flow rate is at a desired level which can be determined by the drops formed at the end of fluid passage 22 in piercing pin assembly 17. Liquid will flow from a sight-drip chamber 24 through tubing 25 and into Y junction 30. As Y junction 30 is hollow, a fluid passage is provided from the inlet port 39 to the outlet port 40.
The liquid will flow into tubing 32, around tubing 34, and into luer adapter 36. FIow will proceed from luer adapter 36 into hypodermic needle 37 and to the patient.
When it is desired to administer the incompatible flùid in container 12a, clamp 27 will be moved to a closed position and clamp 27a opened so as to control the flow ràte g~2~,~34 as previously described for I.V. set 11. Liquid will flow from container 12a through the piercing pin assembly 17a, in-to sight-drip chamber 24a and through tubing 25a into the junction 30. The liquid will enter into inlet port 38 and into the inner tubing 34 inside tubing 32 where it will emp-ty into the hollow luer adapter 36 and utlimately into hypo-dermic needle 37 and to the patient.
The operation of unit 50 shown in FIGURES 2 and 3 is substantially the same as previously described except that instead of the hollow bodied member forming the Y junction 30 as in unit 10, with an inner tube 34 extending therethrough, the junction 53 has the two passages 59 and 60 communicating with first lengths of tubing 52 and 51, respectively. Fluid will flow in through either tubing 51 and 52, through the in-terconnecting passageways 59 and 60, into the flow passages ;~ 64 and 65 of connector 63 and then into the passage either 69 or 70 of tubing 62. In any event, the two liquid materials will be separated throughout their flow path ~ntil they ulti-mately reach the luer adapter 36 wherefrom they will flow in-to hypodermic needle 37.
Unit 110 shown in FIGURE 4 will operate substanti-ally the same as unit 10 except that in place of the additional I.V. set 13, an incompatible material can be placed in inner tube 134 by a separate liquid conveying means such as a hypo-dermic syringe. The needle will pierce through the reseal142 to cause a flow of material through tubing 134 and ulti-mately to hypodermic needle 137.
It will be recognized in the foregoing description, 1~2~34 that the incompatible I.V. liquids are separated in their flow from separate sources, through a common junction and - from the common junction by means of independent passageways which ultimately lead to a hypodermic needle. These independ-ent passageways whether formed from one tube in another or by means of a partition afford a unitary and easy-to-handle - device.
In the embodiments described herein a dual passage is afforded in the tubing 32 and 132. It will be recognized that additional lengths of tubing could either be placed in the outer tubing or concentrically disposed therein although this could pose some problem in manufacture. This would also be true of the partition 67 in tubing 62. Additional parti-tions could be provided to provide additional flow paths.
However, the connections in the junctions 30, 52 and 130 would require additional cost in providing connections to the tubing.
As indicated earlier, the units of this invention are disposable and are manufactured from plastic materials.
The preferred plastic composition for manufacturing the junc-tions 30, 53 and 130 are acrylics although others such as ABS, PVC, polycarbonates, etc. could be employed. Likewise tubing 32, 34, 62, 132 and 134 are of a standard variety and composed of polyvinyl chlorides. However, other flexible plastic ma-terials such as urethane, elastomeric copolymers, etc. couldbe utilized. The preferred manner for making the tubing con-nection such as tubing 25, 25a; 51, 52 and 125 to the respec-tive junctions 30, 53 and 130 is solvent sealing. This would ~. .
; _9_ il25~34 also apply to the connection of tubing 32 to junction 30;
tubing 34 to inlet port 38; tubing 62 to connector 63 and likewise the connections of tubing 132 and 134 to junction 130.
It will thus be seen that through the present in-vention there is now provided an apparatus for administering - incompatible liquids which requires a minimum number of com-ponents and yet is highly effective in separating them through their flow from an I.V. container source to a common hypoder-mic needle. Accordingly, only one injection need be made in the patient in order to administer the incompatible materials.
Because of the unique manner in which the I.V. liquids are separated until they reach the hypodermic needle, only a sin-gle length of tubing need be handled which reduces the risk of unintentional interruption such as by pinching off or in the instance where several lengths of tubing would be employed, their becoming entangled. The device of this invention can be manufactured from existing parts and utilizes a minimum number of components all leading to a reduction in cost of its manufacture.
The foregoing invention can now be practiced by those skilled in the art. Such skilled persons will know that the invention is not neceasarily restricted to the par-ticular embodiments presented herein. The scope of the in-vention is to be defined by the terms of the following claimsas given meaning by the preceding description.
Claims (16)
1. An apparatus for administering incompatible parenteral liquids from at least two containers to a recipi-ent comprising:
at least two liquid-tight connection means for com-municating with said liquid in said containers;
first lengths of flexible tubing secured to each said connection means at one end;
means to control the flow rate of liquid through each said first lengths of flexible tubing;
a sight-drip chamber in fluid communication with each said first lengths of flexible tubing and said connection means;
a second length of flexible tubing;
means defining at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first lengths of tubing with said separate flow paths in said sec-ond length of tubing;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
at least two liquid-tight connection means for com-municating with said liquid in said containers;
first lengths of flexible tubing secured to each said connection means at one end;
means to control the flow rate of liquid through each said first lengths of flexible tubing;
a sight-drip chamber in fluid communication with each said first lengths of flexible tubing and said connection means;
a second length of flexible tubing;
means defining at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first lengths of tubing with said separate flow paths in said sec-ond length of tubing;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
2. The apparatus for administering incompatible parenteral liquids as defined in Claim 1 wherein said means to define at least two separate flow paths within said second length of tubing is comprised of one inner tubular member disposed within said second tubular member.
3. The apparatus for administering incompatible parenteral liquids as defined in Claim 1 wherein said means to define at least two separate flow paths within said sec-ond length of tubing is comprised of a partition member ex-tending longitudinally within said second tubing.
4. The apparatus for administering incompatible parenteral liquids as defined in Claim 1 wherein said junc-tion means comprises a hollow body member providing separate inlet and outlet ports as well as separate flow paths with said first lengths of tubing secured to said inlet ports and said second length of tubing secured to said outlet part.
5. The apparatus for administering incompatible parenteral liquids as defined in Claim 1 wherein said liquid-tight connection means comprises an air vented piercing pin assembly with said sight-drip chamber secured to said pin assembly.
6. The apparatus for administering incompatible parenteral liquids as defined in Claim 1 wherein two liquid-tight connection means are provided, each secured to said first lengths of flexible tubing with said flow control means and said sight-drip chamber operatively associated with each said length of tubing.
7. The apparatus for administering incompatible parenteral liquids as defined in Claim 6 wherein said flow control means is defined by a tubing clamp.
8. The apparatus for administering incompatible parenteral liquids as defined in Claim 7 wherein said means to join said hypodermic needle to each separate flow path is defined by a luer adapter.
9. The apparatus for administering incompatible parenteral liquids as defined in Claim 2 wherein said junc-tion means comprises a hollow body member with said inner tube extending through said hollow body member and in fluid-tight communication with said one of said first lengths of flexible tubing secured to said connection means.
10. The apparatus for administering incompatible parenteral liquids as defined in Claim 1 wherein said paren-teral liquid container is secured to said liquid-tight con-nection means.
11. An apparatus for administering incompatible parenteral liquids from at least two separate liquid sources comprising:
a liquid-tight connection means for communicating with said liquid in said liquid source;
a first length of flexible tubing secured to said connection means at one end;
means to control the flow rate of liquid through said first length of flexible tubing;
a sight-drip chamber in fluid communication with said first length of flexible tubing and said connection means;
a second length of flexible tubing;
means to define at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first length of tubing with one of said separate flow paths in said second length of tubing and providing fluid communication with said other flow path;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
a liquid-tight connection means for communicating with said liquid in said liquid source;
a first length of flexible tubing secured to said connection means at one end;
means to control the flow rate of liquid through said first length of flexible tubing;
a sight-drip chamber in fluid communication with said first length of flexible tubing and said connection means;
a second length of flexible tubing;
means to define at least two separate flow paths within said second length of tubing;
junction means separately interconnecting said first length of tubing with one of said separate flow paths in said second length of tubing and providing fluid communication with said other flow path;
a hypodermic needle secured to said second length of flexible tubing opposite said junction means; and means to join said hypodermic needle to each said separate flow path.
12. The apparatus for administering incompatible parenteral liquids as defined in Claim 11 wherein said junc-tion means is defined by a hollow body member having at least two inlet ports and an outlet port with one of said inlet ports secured to said first length of tubing, and said other inlet port constructed and arranged for entry by an additional liquid conveying means and said outlet port is secured to said second length of tubing.
13. The apparatus for administering incompatible parenteral liquids as defined in Claim 12 wherein said other inlet port constructed and arranged for entry by an addition-al liquid conveying means is defined by a resealable injec-tion site.
14. The apparatus for administering incompatible parenteral liquids as defined in Claim 13 wherein said means to define at least two separate flow paths within said sec-ond length of tubing is composed of an inner tubular member disposed within said second tubular member.
15. The apparatus for administering incompatible parenteral liquids as defined in Claim 13 wherein said means to define at least two separate flow paths within said sec-ond length of tubing is comprised of a partition member ex-tending longitudinally within said second tubing.
16. The apparatus for administering incompatible parenteral liquids as defined in Claim 14 wherein said hollow body member is generally Y-shaped in configuration and said inner tubular member extends from one of said inlet ports and through said outlet port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79728377A | 1977-05-16 | 1977-05-16 | |
| US797,283 | 1985-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1125134A true CA1125134A (en) | 1982-06-08 |
Family
ID=25170398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA301,440A Expired CA1125134A (en) | 1977-05-16 | 1978-04-19 | Apparatus for administering incompatible i.v. liquids |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU3549478A (en) |
| CA (1) | CA1125134A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715279A (en) * | 1987-02-06 | 1987-12-29 | Albanese Rocco J | Supplementary liquid dispensing device |
| US4857068A (en) * | 1986-12-22 | 1989-08-15 | Miles Laboratories, Inc. | Universal spike for use with rigid and collapsible parenteral fluid dispensing container |
| US5338293A (en) * | 1991-02-18 | 1994-08-16 | Gambro Ab | Set of tubes for peritoneal dialysis |
| US5910135A (en) * | 1997-03-31 | 1999-06-08 | Innovative Design Associates | Intravenous infusion system |
| WO2014160319A1 (en) | 2013-03-13 | 2014-10-02 | Incube Labs, Llc | Infusion systems for the controlled delivery of therapeutic agents |
-
1978
- 1978-04-19 CA CA301,440A patent/CA1125134A/en not_active Expired
- 1978-04-27 AU AU35494/78A patent/AU3549478A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4857068A (en) * | 1986-12-22 | 1989-08-15 | Miles Laboratories, Inc. | Universal spike for use with rigid and collapsible parenteral fluid dispensing container |
| US4715279A (en) * | 1987-02-06 | 1987-12-29 | Albanese Rocco J | Supplementary liquid dispensing device |
| US5338293A (en) * | 1991-02-18 | 1994-08-16 | Gambro Ab | Set of tubes for peritoneal dialysis |
| US5910135A (en) * | 1997-03-31 | 1999-06-08 | Innovative Design Associates | Intravenous infusion system |
| WO2014160319A1 (en) | 2013-03-13 | 2014-10-02 | Incube Labs, Llc | Infusion systems for the controlled delivery of therapeutic agents |
| US9597449B2 (en) | 2013-03-13 | 2017-03-21 | Incube Labs, Llc | Infusion system for the controlled delivery of therapeutic agents |
| US10549031B2 (en) | 2013-03-13 | 2020-02-04 | Incube Labs, Llc | Infusion system for the controlled delivery of therapeutic agents |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3549478A (en) | 1979-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |