Multi-lumen injection apparatus
First Claim
1. An injection apparatus for delivering a plurality of medicaments, the apparatus comprising:
- a hollow inner needle defining a first lumen fluidically couplable to a first medicament reservoir and a first fluid delivery actuator;
a hollow outer needle having a distal end that at least partially surrounds the inner needle, the outer needle defining a second lumen fluidically couplable to a second medicament reservoir and a second fluid delivery actuator;
whereby the injection apparatus can be used to penetrate tissue and independently deliver at least two separate medicaments from said first and second medicament reservoirs.
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Accused Products
Abstract
Injection devices, systems and methods are disclosed for injecting two or more medicaments to a patient at a single injection site while preferably minimizing any mixing of the medicaments prior to delivery to the patient. The invention can also be used to sequentially deliver the medicaments to the patient in a repetitive manner. For example, the injection apparatus can sequentially provide a first medicament and then a second medicament to the patient during a first injection procedure. During a second injection procedure, the injection apparatus can again sequentially provide the first medicament and the second medicament to the patient either at the injection site of the first injection procedure or at a different injection site. Multi-lumen manifolds are disclosed for coupling to conventional drug ampoules, to permit the user to sequentially delivery different medicaments via a single skin penetration. Systems including multiple drug reservoirs and filling adaptors are also disclosed.
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Citations
46 Claims
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1. An injection apparatus for delivering a plurality of medicaments, the apparatus comprising:
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a hollow inner needle defining a first lumen fluidically couplable to a first medicament reservoir and a first fluid delivery actuator;
a hollow outer needle having a distal end that at least partially surrounds the inner needle, the outer needle defining a second lumen fluidically couplable to a second medicament reservoir and a second fluid delivery actuator;
whereby the injection apparatus can be used to penetrate tissue and independently deliver at least two separate medicaments from said first and second medicament reservoirs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24)
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21. A filling adaptor for filling a multi-lumen injection apparatus with a medicament, comprising:
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a fitting for fluidically coupling the adaptor to container of a medicament;
a body defining a fluid passageway from a coupled medicament container to a lumen of a multi-lumen injection apparatus; and
a lumen engagement portion configured to engage at least one lumen of a multi-lumen injection apparatus and block access of the medicament to the one lumen while the passageway is aligned with another lumen of the multi-lumen injection apparatus to allow passage of the medicament to the other lumen.
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25. An injection kit, comprising:
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an injection apparatus for delivering a plurality of medicaments, the apparatus having;
an inner needle coupled to a first medicament reservoir;
an outer needle having a distal end that at least partially surrounds the inner needle, the outer needle coupled to a second medicanent reservoir and a second fluid delivery actuator;
whereby the injection apparatus can be used to penetrate tissue and independently deliver a fist medicament and a second medicament;
a first adaptor for filling the first medicament reservoir, and a second adaptor for filling the second medicament reservoir. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A method for delivering a plurality of medicaments, the method comprising:
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disposing a multi-lumen injection apparatus adjacent to a target skin region, the injection apparatus having at least a first reservoir containing a first medicament and a second reservoir containing a second medicament, the apparatus further comprising a hollow inner needle defining a first lumen fluidically couplable to a first medicament reservoir and a hollow outer needle having a distal end that at least partially surrounds the inner needle and defining a second lumen fluidically couplable to a second medicament reservoir;
penetrating the skin region with the injection apparatus;
applying the first medicament; and
applying the second medicament. - View Dependent Claims (34, 35, 36, 37)
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38. An injection manifold for delivering a plurality of medicaments, the apparatus comprising:
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a manifold body;
at least one hypodermic needle adapted to penetrate skin; and
at least two lumens disposed within the manifold body to provide fluidic coupling between separate medicament sources and a target tissue site. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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46. A method for delivering a plurality of medicaments, the method comprising:
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disposing an injection apparatus adjacent to a target skin region;
penetrating the skin region with the injection apparatus;
applying a first medicament using the injection apparatus;
applying a second medicament using the injection apparatus;
repeating the steps of applying the first medicament and applying the second medicament using the injection apparatus.
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Specification