WO2010149736A1 - Prefilled cannula assembly - Google Patents
Prefilled cannula assembly Download PDFInfo
- Publication number
- WO2010149736A1 WO2010149736A1 PCT/EP2010/058988 EP2010058988W WO2010149736A1 WO 2010149736 A1 WO2010149736 A1 WO 2010149736A1 EP 2010058988 W EP2010058988 W EP 2010058988W WO 2010149736 A1 WO2010149736 A1 WO 2010149736A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cannula
- arrangement
- injection device
- reservoir
- medication
- Prior art date
Links
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- 229960001022 fenoterol Drugs 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 229960002848 formoterol Drugs 0.000 description 1
- BPZSYCZIITTYBL-UHFFFAOYSA-N formoterol Chemical compound C1=CC(OC)=CC=C1CC(C)NCC(O)C1=CC=C(O)C(NC=O)=C1 BPZSYCZIITTYBL-UHFFFAOYSA-N 0.000 description 1
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- 229960001442 gonadorelin Drugs 0.000 description 1
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- QZZUEBNBZAPZLX-QFIPXVFZSA-N indacaterol Chemical compound N1C(=O)C=CC2=C1C(O)=CC=C2[C@@H](O)CNC1CC(C=C(C(=C2)CC)CC)=C2C1 QZZUEBNBZAPZLX-QFIPXVFZSA-N 0.000 description 1
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- GFIJNRVAKGFPGQ-LIJARHBVSA-N leuprolide Chemical compound CCNC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](CC(C)C)NC(=O)[C@@H](NC(=O)[C@H](CO)NC(=O)[C@H](CC=1C2=CC=CC=C2NC=1)NC(=O)[C@H](CC=1N=CNC=1)NC(=O)[C@H]1NC(=O)CC1)CC1=CC=C(O)C=C1 GFIJNRVAKGFPGQ-LIJARHBVSA-N 0.000 description 1
- 229960004338 leuprorelin Drugs 0.000 description 1
- 229950008204 levosalbutamol Drugs 0.000 description 1
- 229960002701 liraglutide Drugs 0.000 description 1
- 108010004367 lixisenatide Proteins 0.000 description 1
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- LMOINURANNBYCM-UHFFFAOYSA-N metaproterenol Chemical compound CC(C)NCC(O)C1=CC(O)=CC(O)=C1 LMOINURANNBYCM-UHFFFAOYSA-N 0.000 description 1
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- 125000001500 prolyl group Chemical group [H]N1C([H])(C(=O)[*])C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
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- BENFXAYNYRLAIU-QSVFAHTRSA-N terlipressin Chemical compound NCCCC[C@@H](C(=O)NCC(N)=O)NC(=O)[C@@H]1CCCN1C(=O)[C@H]1NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC=2C=CC=CC=2)NC(=O)[C@H](CC=2C=CC(O)=CC=2)NC(=O)[C@@H](NC(=O)CNC(=O)CNC(=O)CN)CSSC1 BENFXAYNYRLAIU-QSVFAHTRSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
- A61M5/2448—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic comprising means for injection of two or more media, e.g. by mixing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M2005/1787—Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
- A61M5/281—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
- A61M5/282—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
Definitions
- GLP-1 glucagon-like peptide-1
- insulin and GLP-1 or GLP-1 analogs as two possible drug combinations
- other drugs or drug combinations such as analgesics, hormones, beta agonists or corticosteroids, or a combination of any of the above- mentioned drugs could be used with our invention.
- insulin shall mean insulin, an insulin analog, an insulin derivative or a mixture thereof, including human insulin or a human insulin analogs or derivatives.
- insulin analogs are, without limitation, Gly(A21 ), Arg(B31 ), Arg(B32) human insulin; Lys(B3), Glu(B29) human insulin; Lys(B28), Pro(B29) human insulin; Asp(B28) human insulin; human insulin, wherein proline in position B28 is replaced by Asp, Lys, Leu, VaI or Ala and wherein in position B29 Lys may be replaced by Pro; Ala(B26) human insulin; Des(B28-B30) human insulin; Des(B27) human insulin or Des(B30) human insulin.
- insulin derivatives are, without limitation, B29-N-myristoyl-des(B30) human insulin; B29-N- palmitoyl-des(B30) human insulin; B29-N-myristoyl human insulin; B29-N-palmitoyl human insulin; B28-N-myhstoyl LysB28ProB29 human insulin; B28-N-palmitoyl- LysB28ProB29 human insulin; B30-N-myristoyl-ThrB29LysB30 human insulin; B30-N- palmitoyl- ThrB29LysB30 human insulin; B29-N-(N-palmitoyl-Y-glutamyl)-des(B30) human insulin; B29-N-(N-lithocholyl-Y-glutamyl)-des(B30) human insulin; B29-N-( ⁇ - carboxyheptadecanoyl)-des(B30) human insulin and B29-N-( ⁇ -carcino
- GLP-1 analog shall mean an analog of glucagon-like peptide-1 (GLP-1 ), including without limitation, exenatide (Exendin-4(1-39), a peptide of the sequence H-His-Gly-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Leu-Ser-Lys-Gln-Met-Glu- Glu-Glu-Ala-Val-Arg-Leu-Phe-lle-Glu-Trp-Leu-Lys-Asn-Gly-Gly-Pro-Ser-Ser-Gly-Ala- Pro-Pro-Pro-Ser-NH 2 ), Exendin-3, Liraglutide, or AVE0010 (H-His-Gly-Glu-Gly-Thr- Phe-Thr-Ser-Asp-Leu-Ser-Lys-Gln-Met-Glu-Glu-Glu-Ala-Val-Arg-Leu-Phe-lle-
- beta agonists are, without limitation, salbutamol, levosalbutamol, terbutaline, pirbuterol, procaterol, metaproterenol, fenoterol, bitolterol mesylate, salmeterol, formoterol, bambuterol, clenbuterol, indacaterol.
- Delivering at least two active medicaments or "agents" simultaneously can often create a number of challenges for the device provider as well as the user of the device.
- the two active agents may interact with each other during the long- term, shelf life storage of the formulation. Therefore, it may be advantageous to store the active components separately and only combine these active components at the point of delivery. That is the case for formulations for injection, but is also true for formulations designated to other routes of administration, such as e.g. inhalation.
- combining the two agents should be straightforward and convenient so as to result in a reliable, accurate injection.
- each active agent making up the combination therapy may need to be varied for each user or at different stages of a user's therapy.
- one or more active ingredients may require a titration period to gradually increase a patient up to a "maintenance" dose.
- one active agent requires a non-adjustable fixed dose while the other agent is varied in response to a patient's changing symptoms and/or physical conditions.
- This concern may mean that pre-mixed formulations of multiple active agents may not be suitable as these pre-mixed formulations would have a fixed ratio of the active components, which could not be varied by the healthcare professional or patient.
- the present apparatus and method overcomes the above-mentioned concerns by providing a solution to the above-described problems by providing an improved cannula assembly and associated injection device having a cannula that has a reservoir containing an active medication.
- This cannula is part of a cannula assembly that is attached to an injection device, such as a pen injection device containing a cartridge.
- Another benefit of the compressible seal is that it returns to its original shape and volume once the cannula arrangement is detached from the drug delivery device. Thereby it seals the first cannula piercing end preventing needle stick injury, e.g.
- the sealing element may be provided at the distal end of the drug delivery device.
- the sealing element may serve for ensuring that medicament in the reservoir is expelled only through the second needle of the attached cannula arrangement when the compressible reservoir is compressed.
- said injecting device comprises a pressing member for exerting a force on said limiting element so as to expel said second medicament through said second cannula member.
- an injection system comprising an injection device, e.g. such as a drug delivery device, containing a first medication in a reservoir, such as a container, cartridge, or ampoule, and a housing configured for attaching said cannula arrangement.
- the cannula arrangement comprises a flexible member and a housing, said flexible member and said housing defining at least one compressible reservoir.
- a second medication is provided in said compressible reservoir.
- a first cannula is provided, the cannula comprising a piercing proximal portion configured for fluid engagement with said first medication provided in said injection device, and a distal end configured for fluid engagement with said compressible reservoir.
- a second cannula is provided, the second cannula comprising a proximal end for fluid engagement with said compressible reservoir and a piercing distal end.
- an injection system comprising an injection device, e.g. such as a drug delivery device, containing a first medication in a reservoir, such as container, cartridge, or ampoule, and a housing configured for attaching said cannula arrangement.
- an injection device e.g. such as a drug delivery device
- a reservoir such as container, cartridge, or ampoule
- a housing configured for attaching said cannula arrangement.
- the quantity of the first medication may be a previously selected quantity, e.g. by a user.
- the quantity may be a fixed quantify, e.g. in a fixed dose device.
- the method may be used for test purposes only, i.e. for testing the cannula arrangement without any medical treatment of a human being or an animal.
- Figure 1 illustrates a first arrangement of a prefilled cannula assembly
- Figure 2 illustrates a second arrangement of a prefilled cannula assembly
- Figure 3a illustrates an initial step of an injection system for use with the prefilled cannula assembly illustrated in Figure 1
- Figure 3b illustrates a subsequent injection step of the injection system illustrated in Figure 3a;
- Figure 3c illustrates a subsequent injection step of the injection system illustrated in Figure 3b.
- Figure 4 illustrates an injection device that may be used with the injection system illustrated in Figures 3a-c.
- Figure 1 illustrates a first arrangement of a prefilled cannula assembly 10.
- Such prefilled cannula assembly 10 is configured to be coupled to an injection device, such as the injection device illustrated in Figure 4.
- Such prefilled cannula assembly 10 may be configured to be either releasably or non-releasably coupled to such an injection device.
- the injection device illustrated in Figure 4 comprises a pen injection device.
- a pen injection device comprises a cartridge or ampoule containing a first injectible liquid, such as insulin.
- the injection device further comprises a dosing mechanism that allows a user of the device to set an injectible dose.
- the dose mechanism comprises a driving or injecting mechanism such that the injectible liquid contained in the cartridge and along with an injectible liquid contained in the attached cannula assembly may be injected during the same injection.
- the cannula assembly 10 comprises a cannula arrangement 4.
- the cannula arrangement 4 comprises a first cannula 12
- the first cannula 12 comprises a conventional cannula of 30 Gauge.
- the second cannula 14 may comprise a conventional cannula of similar size 30 Gauge or of alternative size (such as, e.g., 27G, 28G, 29G, 3OG, 31 G or smaller).
- alternative size such as, e.g., 27G, 28G, 29G, 3OG, 31 G or smaller.
- other size cannula could also be used as well.
- the first cannula 12 would comprise a cannula having a first gauge and the second cannula 14 would comprise a cannula having a second gauge size different than the first cannula.
- the cannula assembly 10 further comprises a limiting element formed as a flexible member 16, e.g. such as a membrane, along with a housing element 24.
- the housing element 24 houses at least a portion of the first cannula 12 and at least a portion of the second cannula 14.
- the flexible member 16 is preferably disposed between the first and the second cannula 12, 14 and may be rigidly or removably affixed to the housing element 24.
- the flexible member 16 along with a portion of the housing 24 defines at least one medicament reservoir or cavity 40.
- a medicament reservoir or cavity 40 may be filled with a medication 26, such as a short acting insulin, a long acting insulin, or a GLP-1 or a GLP-1 analog.
- the flexible member 16 and housing 24 may define a plurality of medicament cavities, for example, at least two such medicament cavities.
- the first cavity may be filled with a one type of medication and the second cavity may be filled with a second type of medication.
- the first cannula 12 comprises at least a proximal end 20 and a distal end 22.
- the proximal end 20 of the first cannula 12 preferably comprises a sharpened and/or beveled end 18.
- the first cannula 12 is preferably mounted near a proximal portion 28 of the housing 24; however, alternative mounting arrangements may also be utilized. While mounted within the housing 24, the distal end 22 of the first cannula 12 can remain in fluid engagement with the medicament cavity 40 defined by the flexible member 16. Alternatively, the first cannula 12 is not in permanent contact with the medication upon storage, but will be in fluid engagement to the medication reservoir 40 during administration using a suitable activation mechanism, e.g. comprising a metal spring, a plastic spring element, gas pressure or the like.
- a suitable activation mechanism e.g. comprising a metal spring, a plastic spring element, gas pressure or the like.
- the flexible member 16 is made of a suitable plastic material adequate for permanent contact with a parenteral drug product.
- suitable plastic material adequate for permanent contact with a parenteral drug product. Examples for such materials are polypropylene (PP), polyethylene (PE), polyurethane (PU), polyethylene terephtalate (PET), or polystyrene (PS).
- PP polypropylene
- PE polyethylene
- PU polyurethane
- PET polyethylene terephtalate
- PS polystyrene
- the medicament cavity 40 contains a quantity of another medicament 26.
- a quantity of this second medicament 26 comprises a fixed dose of medication.
- a compressible seal 34 is provided at the proximal end 20 of the first cannula 12.
- this compressible seal 34 is provided along with the cannula assembly 10 when the user takes this assembly out of its shipping or storage packaging.
- this compressible seal 34 may be compressible along an outer surface of the first cannula 12.
- the medicament cavity 40 has a variable volume such that, as an external pressing member exerts a force 44 against an external wall 32 of the flexible member 16, the second medicament 26 contained within this cavity is driven out of the flexible member 16.
- a second cannula 14 is provided at the distal portion 30 of the housing 24 . Similar to the first cannula 12, this second cannula 14 comprises a proximal end 48 and a distal end 50. While mounted within the distal portion 30 of the housing 24, the proximal end
- the distal end 50 is provided with a beveled and piercing end 54 so as to provide a piercing end for an injection site of a patient.
- the second cannula 14 is provided with a removable cannula cap 62.
- This cannula cap 62 serves to protect the distal end 50 of the second cannula portion 14 during shipment or packaging.
- This removable cap 62 also can be used to prevent an inadvertent cannula stick.
- the housing 24 is made of one or more appropriate plastic materials suitable for medical devices. Examples for such materials are polypropylene (PP), polyethylene (PE), polyurethane (PU), polyethylene terephtalate (PET), or polystyrene (PS). Alternative materials could also be used.
- the housing 24 further includes a coupling mechanism 66.
- this coupling mechanism 66 provides a user or a patient with a means to releasably connect the cannula assembly 10 to the injection device, such as the pen injection device illustrated in Figure 4.
- Such coupling mechanism 66 could comprise a snap lock, or other similar type of releasably coupling.
- Figure 2 illustrates an alternative arrangement of a prefilled cannula assembly 110.
- Such prefilled cannula assembly 110 is configured to be coupled to an injection device, such as an injection device illustrated in Figure 4.
- Such prefilled cannula assembly 110 may be configured to be either releasably or non-releasably coupled to such an injection device.
- the first cannula 112 comprises a conventional cannula of 30 Gauge.
- the second cannula section 114 may comprise a conventional cannula of similar size 30 Gauge or of alternative size (such as, e.g., 27G, 28G, 29G, 3OG, 31 G or smaller).
- alternative size such as, e.g., 27G, 28G, 29G, 3OG, 31 G or smaller.
- other size cannula could also be used as well.
- the first cannula 112 would comprise a cannula having a first gauge and the second cannula 114 would comprise a cannula having a second gauge size different than the first cannula.
- the cannula assembly 110 further comprises a bung member 116 along with a housing element 124.
- the housing element 124 houses at least a portion of the first cannula 112 and at least a portion of the second cannula 114.
- the bung member 116 is preferably disposed partially between the first and the second cannula 112, 114.
- This bung member 116 is slidable between a proximal housing member 6 and a distal housing member 8. For example, if a force F2 144 acts on the bung member 116, the bung member will move from its starting position (as illustrated in Figure 2) to its end position where the bung member will eventually reside adjacent an end wall 138 of the housing 124.
- the bung member 116 along with the housing 124 define at least one medicament reservoir or cavity 140.
- a medicament reservoir or cavity may be filled with a medication 126, such as a short acting insulin or a long acting insulin or another active ingredient such as an GLP-1 or a GLP-1 analog.
- the bung member 116 may define a plurality of medicament cavities, for example, at least two such medicament cavities.
- the first cavity may be filled with a one type of medication and the second cavity may be filled with a second type of medication.
- the first cannula 112 comprises at least a proximal end 120 and a distal end 122.
- the proximal end 120 of the first cannula 112 preferably comprises a sharpened and/or beveled end.
- the first cannula 112 is preferably mounted near a proximal portion 128 of the housing 124; however, alternative mounting arrangements may also be utilized. While mounted within the housing 124, the distal end 122 of the first cannula 112 can permanently remain in fluid engagement with the medicament cavity 140 defined by the bung member 116. Alternatively, the first cannula 112 is not in permanent contact with the medication upon storage, but will be connected to the medication reservoir 140 during administration using a suitable activation mechanism, e. g comprising a metal spring, a plastic spring element, gas pressure or the like.
- a suitable activation mechanism e. g comprising a metal spring, a plastic spring element, gas pressure or the like.
- the bung member 116 is made of a suitable flexible plastic material made by an extrusion process.
- Different polymers can be used for the bung member, e.g. polypropylene (PP), polyethylene (PE), polyurethane (PU), polyethylene terephtalate (PET), or polystyrene (PS). Co-extrusion of different polymers can be applied to optimize the properties of the reservoir, e.g. with respect to vapor or oxygen permeability.
- the medicament cavity 140 defined by the bung member 116 and the housing 124 contains a quantity of another medicament 126.
- a quantity of this second medicament 126 comprises a fixed dose of medication.
- a compressible seal 134 is provided at the proximal end 120 of the first cannula 112.
- this compressible seal 134 is provided along with the cannula assembly 110 when the user takes this assembly out of its shipping or storage packaging.
- this compressible seal 134 may be compressible along an outer surface of the first cannula member 112.
- the medicament cavity 140 has a variable volume such that, as an external pressing member exerts a force F 144 against the bung member 116, the second medicament 126 contained within this cavity is driven from the cavity.
- the seal 134 is provided at the proximal end 120 of the first cannula 112, as the bung member 116 moves towards the wall 138 of housing 124 under the force of F 144, the medication contained within the bung member 116 is expelled from the cavity and into the second cannula 114 and, preferably into an injection site of a patient.
- a second cannula 114 is provided at the distal portion 130 of the housing 124. Similar to the first cannula 112, this second cannula 114 comprises a proximal end 148 and a distal end 150. While mounted within the distal portion 130 of the housing 124, the proximal end 148 of the second cannula 114 can remain in fluid engagement with the medicament cavity 140 defined by the bung member 116 and housing 124. Alternatively, the second cannula 114 is not in permanent contact with the medication upon storage, but will be connected to the medication reservoir 140 during administration using a suitable activation mechanism, e. g comprising a metal spring, a plastic spring element, gas pressure or the like.
- a suitable activation mechanism e. g comprising a metal spring, a plastic spring element, gas pressure or the like.
- the distal end 150 is provided with a beveled and piercing end 154 so as to provide a piercing end for an injection site of a patient.
- the second cannula 114 is provided with a removable cannula cap 162.
- the housing 124 may be made from one or more appropriate plastic materials suitable for medical devices. Examples for such materials are polypropylene (PP), polyethylene (PE), polyurethane (PU), polyethylene terephtalate (PET), or polystyrene (PS). Alternative materials could also be used.
- the housing 124 further includes a coupling mechanism 166.
- this coupling mechanism 164 provides a user or a patient with a means to releasably connect the cannula assembly 110 to the injection device, such as the pen injection device illustrated in Figure 4.
- Such coupling mechanism 166 could comprise a snap lock, or other similar type of releasably coupling.
- such coupling mechanism could comprise a means to permanently connect the cannula assembly 110 to the injection device.
- a permanent connection would provide a certain guarantee that the cannula assembly along with the injection device could only be used for a single injection.
- a second medicine may be administered. Both the first and the second medicines will be injected parenterally (e.g., subcutaneously). This can be achieved with the aid of an injection device so that only one injection is required.
- the medicine is to be administered variably selectable depending on an individual patient's need.
- the second medicine is to be administered in addition as a fixed dose.
- the first and second medicines are to be injectable by way of the same cannula assembly by way of a single injection step.
- the injection device allows for a variable dose selection of the first medicament that is to constructed similarly to already existing, established injection devices.
- existing injection devices may comprise variably selectable auto injectors (e.g. auto pens) as well as variably selectable injection aids that are operated manually (e.g., insulin pens).
- Figure 3a illustrates an injection system 200 for use with the prefilled cannula assemblies illustrated in Figures 1 and 2.
- the process of injecting the first medication contained in the cartridge of the injecting device and the second medication contained within the cannula assembly may occur in the following manner.
- a prefilled cannula assembly is received that contains the cannula assembly.
- a cannula assembly could comprise the prefilled cannula assemblies 10, 110 illustrated in Figures 1 and 2, respectively.
- the cannula 210 comprises a prefilled cannula assembly, similar to the assembly 10 illustrated in Figure 1.
- the prefilled cannula assembly 210 comprises a first cannula member 212, a second cannula member 214, flexible member 216 along with a housing element 224.
- the housing element 224 houses at least a portion of the first cannula member 212 and at least a portion of the second cannula member 214.
- the flexible member 216 is preferably disposed between the first and the second cannula sections 212, 214 and may be rigidly or removably affixed to the housing element 224.
- the cannula assembly 210 is removed from its packaging and is mounted onto or into the injection device 202.
- Such injection device may comprise a pen type injection as illustrated in Figure 4.
- the coupling mechanism 264 of the cannula assembly 210 (similar to the coupling mechanisms 66, 166 of cannula assemblies 10, 110) is attached to the injection device 202.
- the cannula assembly 210 is packed in a sterile enclosure and can easily be taken out by the user, where such a sterile enclosure may comprise a blister pack, a bag, or other similar type enclosure.
- the prefilled cannula assembly 210 is preferably filled with a medication 226, such as an insulin, a GLP-1 , or a GLP-1 analog.
- a medication 226, such as an insulin, a GLP-1 , or a GLP-1 analog is aligned with a septum 208 located at a distal end of a conventional cartridge or ampoule 204 housed within the injection device 202.
- a conventional cartridge or ampoule 204 containing the first medicine can be, for example, a 3 ml insulin cartridge which is conventionally used in insulin pens.
- cartridge or ampoules of other formats or conventions may also be used.
- the coupling mechanism 264 of the cannula assembly 210 allows the assembly to be snapped onto or into a receiving mechanism 260 of the injection device.
- a receiving mechanism may be internal or external to the injection device 202.
- the user then removes the removable cover 262 from the second cannula 214 of the cannula assembly 210. Utilizing the injection device 202, the user can now select a required quantity of the first medicine 206 contained within the cartridge 204.
- the injection device 300 could be a reusable or disposable device.
- disposable device it is meant an injection device that is obtained from the manufacturer preloaded with a medicament and cannot be reloaded with new medicament after the initial medicament is exhausted.
- the device may be a fixed dose or a settable dose, but in either case it is a multi-dose device.
- the conventional device 300 comprises a cartridge housing 306, a dose dialing module 304, and a dose adjustment knob 302. A first end of the cartridge housing 306 and the dose dialing module 304 are secured together by retaining features.
- Such typical injection device 300 contains a cartridge or other reservoir of medication.
- the cannula assembly 210 of Figure 3a can be designed to work with only a particularly designed injection device that is coded to work with only a single type cannula assembly.
- the cannula assembly 210 of Figure 3a can be designed to work with only a particularly designed injection device that is coded to work with only a single type cannula assembly.
- the cannula assembly 210 of Figure 3a can be designed to work with only a particularly designed injection device that is coded to work with only a single type cannula assembly.
- the cannula assembly 210 of Figure 3a can be designed to work with only a particularly designed injection device that is coded to work with only a single type cannula assembly.
- 210 may be designed to work with only a particularly designed injection device that is coded to work with only a limited number of cannula assemblies. This could be achieved by including specific connecting or coupling features on the injection device that engage matching, complementary, or coding features on the cannula assembly
- specific coupling, connecting, or coding features may be provided on the distal end 250 of the injection device 200 that engage matching or complementary features on a specific type of cannula assembly for use with only one type of injection device.
- a specific type of cannula assembly 210 containing a fast acting insulin as an active ingredient may only be allowed to be connected to only a specific type of injection device containing a long acting insulin.
- One reason for restricting the use of the injection system to a particular cannula assembly is to ensure dose accuracy of the medicament delivered from the injection device. Another reason for restricting the use of the injection system to a particular cannula assembly is to ensure that only certain active medicaments can be delivered along with only certain other active medicaments stored within the injection device.
- the second cannula 214 is introduced into an intended injection site 266 of a patient 270. This is illustrated in Figure 3b.
- the injection process is activated by pressing on a corresponding trigger of the injection device 202.
- the injection device 202 first exerts a force F 3 244 against the flexible member 216. This force F 3 244 acts to expel the second medicament 226 out of the reservoir or cavity 240 through the second cannula 214 into the injection site of the patient.
- a pressure pad 256 could be used as pressing member to exert a force on the flexible member 216.
- a pressure pad 256 could be provided on the injection device 202.
- the pressure pad 256 may be driven by the injection device 202, in this preferred arrangement.
- such a pressure pad 256 could be a separate component part or an attachment to the injection device 202.
- Patient safety can be enhanced by allowing the user to check if the cavity 240 is empty, incompletely filled, or contaminated with particulate matter.
- the reservoir 240 needs to be manufactured from an essentially translucent material allowing a visible inspection.
- the injection device 202 alters the location of the cartridge 204 and utilizes its dosing mechanism to move the cartridge 204 in a distal direction.
- the dosing mechanism moves the cartridge 204 in a distal direction so that the cartridge membrane 208 resides over the rubber seal 234 surrounding the first cannula 212.
- the first cannula 212 pierces the membrane 208 so that the first cannula 212 will now be in fluid engagement with the medicament 206 provided in an inner cavity 258 of the cartridge
- the rubber seal 234 acts as a sealing member that surrounds the first cannula 212 is pushed in the distal direction and will subsequently reside in a compressed state, surrounding the first cannula 212 but allowing the cannula 212 to pierce the cartridge membrane 208.
- the second medication 226 contained within the cannula reservoir cannot flow back into the cartridge of the injection device and must therefore be expelled through the second cannula 214.
- the dosing mechanism (preferably by way of a plunger rod) of the injection device 202 begins to act on the bung contained within the cartridge 204 by way of force F 4 268.
- the dosing mechanism of the injection device 202 injects the previously selected quantity of the first medication 206 from the cartridge 204 first through the first cannula 212, through the compressed reservoir 216, and then through the second cannula 214.
- This medicament is then injected by way of the second cannula portion 214 into an injection site 266 of a patient 270.
- this injection process takes place manually. However, in an alternative injection system arrangement, the injection process can take place automatically.
- the cartridge 204 is pulled back in a proximal direction so that the cartridge will eventually reside in its initial position, as illustrated in Figure 3A and 3B.
- the rubber seal 234, now being not compressed, will return to its original shape covering the first cannula 212. Thereby it seals and covers the cannula's proximal end providing for a liquid tight closure of the proximal end of the cannula arrangement and/ or protection against needle stick injuries.
- the user can remove the cannula assembly 210 from of the injection site 266 and remove the cannula assembly 210 from the injection device 202.
- the cannula assembly 210 can then be disposed.
- One advantage of the prefilled cannula assembly described here is that the administration of the reservoir medication does not require additional complicated handling steps compared with the administration of a single dose of the first medicine. This is true in that the cannula assembly with the two cannulas can be handled principally identical to a standard pen type cannula assembly for use with a pen type injection device. This ease of use results in increased patient acceptance and can also increase operating safety of both the injection device as well as the prefilled cannula assembly.
- this connector arrangement can be any design known to the art, preferably one that is releasable by a user.
- a releasable connector could comprise a single or multiple start thread, a bayonet lock, a luer lock, ramps and detents, snap locks, snap fits or other connector that has a male or female part that connects to the corresponding female or male part on the medicament housing.
- the disclosed cannula assembly provides a fixed dose available in a reservoir or inner space of the cannula assembly that contains an active ingredient in a cannula that can be connected onto an injection device, such as a pen injection device.
- This pen device may then be used to set a variable dose of a medication contained within the pen device, for example a medication contained within a cartridge or ampoule.
- the device can then be used to administer this variably set dose along with the active ingredient stored within the cannula assembly reservoir.
- one advantage is that exact dosing of low-dose active ingredients may be achieved. Dosing is ensured by the single dose and is not dependent on tolerances of the dosing system (device) or variability of multi-dose packaging, e.g. a cartridge/stopper system.
- the presently disclosed cannula assemblies allow for the combination of a fixed dose with a variable dose.
- a fixed dose can be combined with a large range of variable doses.
- An advantage of the prefilled cannula assembly is that by featuring a flexible container for the fixed dose medication, losses of the variable medication are minimized and the minimum volume of the variable medication required to flush the entire volume of the fixed medication from its reservoir is significantly lowered due to the reduced dead volume after the fixed medication has been expelled from its reservoir.
- Other technical solutions, such as, for example, devices with several cartridges for fixed and variable doses are expensive to develop and to manufacture as well as complicated to handle.
- the disclosed cannula assembly results in a simple and safe to use application.
- operation is scarcely different from known device systems and is conceivably easy.
- One potential result is a higher safety of use.
- the proposed injection system can be designed to work with currently marketed pen- type injection devices or may be designed to work only with one particular design of injection device. The latter could be achieved by including specific features on the injection device that engage matching or complementary features on the prefilled cannula assembly device.
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10724877A EP2445550A1 (en) | 2009-06-25 | 2010-06-24 | Prefilled cannula assembly |
JP2012516740A JP5716020B2 (en) | 2009-06-25 | 2010-06-24 | Prefilled cannula assembly |
US13/379,600 US20120191066A1 (en) | 2009-06-25 | 2010-06-24 | Prefilled Cannula Assembly |
CA2764264A CA2764264A1 (en) | 2009-06-25 | 2010-06-24 | Prefilled cannula assembly |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22044209P | 2009-06-25 | 2009-06-25 | |
US61/220,442 | 2009-06-25 | ||
EP09010324 | 2009-08-11 | ||
EP09010324.3 | 2009-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010149736A1 true WO2010149736A1 (en) | 2010-12-29 |
Family
ID=41566337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/058988 WO2010149736A1 (en) | 2009-06-25 | 2010-06-24 | Prefilled cannula assembly |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120191066A1 (en) |
EP (1) | EP2445550A1 (en) |
JP (1) | JP5716020B2 (en) |
CA (1) | CA2764264A1 (en) |
WO (1) | WO2010149736A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013030224A1 (en) | 2011-08-30 | 2013-03-07 | Novo Nordisk A/S | Arrangement for sequential delivery of fluid volumes |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006083876A2 (en) | 2005-02-01 | 2006-08-10 | Intelliject, Llc | Devices, systems, and methods for medicament delivery |
JP5826170B2 (en) * | 2009-05-20 | 2015-12-02 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Assemblies for use in drug delivery devices |
US9084849B2 (en) | 2011-01-26 | 2015-07-21 | Kaleo, Inc. | Medicament delivery devices for administration of a medicament within a prefilled syringe |
US9522235B2 (en) | 2012-05-22 | 2016-12-20 | Kaleo, Inc. | Devices and methods for delivering medicaments from a multi-chamber container |
US9517307B2 (en) | 2014-07-18 | 2016-12-13 | Kaleo, Inc. | Devices and methods for delivering opioid antagonists including formulations for naloxone |
EP3274021B1 (en) | 2015-03-24 | 2024-02-14 | Kaleo, Inc. | Devices and methods for delivering a lyophilized medicament |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3785379A (en) * | 1971-08-12 | 1974-01-15 | M Cohen | Syringe for injection of freshly mixed liquid-powder |
US4044758A (en) * | 1976-01-14 | 1977-08-30 | The Kendall Company | Cholangiography device and method |
EP0153878A2 (en) * | 1984-03-02 | 1985-09-04 | Eolas - The Irish Science and Technology Agency | An injection device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3419145B2 (en) * | 1995-04-25 | 2003-06-23 | ニプロ株式会社 | Prefilled syringe |
US6406455B1 (en) * | 1998-12-18 | 2002-06-18 | Biovalve Technologies, Inc. | Injection devices |
FR2799654B1 (en) * | 1999-10-13 | 2002-01-11 | Sod Conseils Rech Applic | DEVICE FOR RECONSTRUCTING A THERAPEUTIC SOLUTION, SUSPENSION OR DISPERSION AND PREPARATION AND PACKAGING METHOD THEREOF |
-
2010
- 2010-06-24 WO PCT/EP2010/058988 patent/WO2010149736A1/en active Application Filing
- 2010-06-24 CA CA2764264A patent/CA2764264A1/en not_active Abandoned
- 2010-06-24 US US13/379,600 patent/US20120191066A1/en not_active Abandoned
- 2010-06-24 EP EP10724877A patent/EP2445550A1/en not_active Withdrawn
- 2010-06-24 JP JP2012516740A patent/JP5716020B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3785379A (en) * | 1971-08-12 | 1974-01-15 | M Cohen | Syringe for injection of freshly mixed liquid-powder |
US4044758A (en) * | 1976-01-14 | 1977-08-30 | The Kendall Company | Cholangiography device and method |
EP0153878A2 (en) * | 1984-03-02 | 1985-09-04 | Eolas - The Irish Science and Technology Agency | An injection device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013030224A1 (en) | 2011-08-30 | 2013-03-07 | Novo Nordisk A/S | Arrangement for sequential delivery of fluid volumes |
US9919108B2 (en) | 2011-08-30 | 2018-03-20 | Novo Nordisk A/S | Arrangement for sequential delivery of fluid volumes |
Also Published As
Publication number | Publication date |
---|---|
US20120191066A1 (en) | 2012-07-26 |
EP2445550A1 (en) | 2012-05-02 |
JP5716020B2 (en) | 2015-05-13 |
JP2012530579A (en) | 2012-12-06 |
CA2764264A1 (en) | 2010-12-29 |
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