US20110092922A1 - Transdermal dispensing apparatus and methods - Google Patents

Transdermal dispensing apparatus and methods Download PDF

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Publication number
US20110092922A1
US20110092922A1 US12/581,658 US58165809A US2011092922A1 US 20110092922 A1 US20110092922 A1 US 20110092922A1 US 58165809 A US58165809 A US 58165809A US 2011092922 A1 US2011092922 A1 US 2011092922A1
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US
United States
Prior art keywords
applicator
path
channel
section
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/581,658
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English (en)
Inventor
Mick A. Trompen
Gregory A. Lyon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aircom Manufacturing Inc
Eli Lilly and Co
Original Assignee
Aircom Manufacturing Inc
Eli Lilly and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aircom Manufacturing Inc, Eli Lilly and Co filed Critical Aircom Manufacturing Inc
Priority to US12/581,658 priority Critical patent/US20110092922A1/en
Assigned to AIRCOM MANUFACTURING, INC. reassignment AIRCOM MANUFACTURING, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LYON, GREGORY A., TROMPEN, MICK A.
Priority to TW099133902A priority patent/TWI478700B/zh
Priority to ARP100103806A priority patent/AR081116A1/es
Priority to BR112012009147-6A priority patent/BR112012009147B1/pt
Priority to PCT/US2010/053206 priority patent/WO2011049951A1/en
Priority to ES10773463T priority patent/ES2776976T3/es
Priority to JP2012534442A priority patent/JP2013508036A/ja
Priority to CA2773173A priority patent/CA2773173C/en
Priority to AU2010308222A priority patent/AU2010308222B2/en
Priority to UAA201204840A priority patent/UA107677C2/uk
Priority to MX2012003829A priority patent/MX338203B/es
Priority to NZ598292A priority patent/NZ598292A/en
Priority to UY0001032955A priority patent/UY32955A/es
Priority to CN201080047041.6A priority patent/CN102665396B/zh
Priority to EP10773463.4A priority patent/EP2490524B1/en
Assigned to AIRCOM MANUFACTURING, INC., ELI LILLY AND COMPANY reassignment AIRCOM MANUFACTURING, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LYON, GREGORY A., TROMPEN, MICK A., CLARK, TERRENCE PATRICK, NEWBOUND, GARRET CONRAD
Publication of US20110092922A1 publication Critical patent/US20110092922A1/en
Priority to IL218291A priority patent/IL218291A/en
Priority to ZA2012/03370A priority patent/ZA201203370B/en
Priority to HK13102781.4A priority patent/HK1175363A1/xx
Priority to US14/618,993 priority patent/US9883932B2/en
Priority to JP2015031399A priority patent/JP6165792B2/ja
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K13/00—Devices for grooming or caring of animals, e.g. curry-combs; Fetlock rings; Tail-holders; Devices for preventing crib-biting; Washing devices; Protection against weather conditions or insects
    • A01K13/003—Devices for applying insecticides or medication
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
    • 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
    • A61M35/00—Devices for applying media, e.g. remedies, on the human body
    • A61M35/003—Portable hand-held applicators having means for dispensing or spreading integral media
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates generally to apparatuses and methods for dispensing therapeutic agents to animals, and particularly applicators and methods for transdermally administering therapeutic agents to domestic animals.
  • Drug delivery devices and applicators for dispensing known quantities of therapeutic agents to animals are well known in the art. While there are numerous ways to deliver these therapeutic agents to the coats and skins of the animals, many of these methods are either ineffective and/or present safety risks to the animal or user during or after the dispensing activity. More particularly, because a physical connection must be achieved between the applicator tip and the drug delivery device during the dispensing activity, there is inherently a risk that the connection will be inadequate, thereby permitting some of the therapeutic agent to leak out of the device and into physical contact with the user. Not only is this leakage wasteful and messy, it also places the user at a heightened risk of suffering from a skin irritation or other such health concern, particularly if the user comes into direct contact with the agent. These health and safety risks can be of particular concern when a controlled substance is used as the dispensing agent.
  • the present invention overcomes or ameliorates at least one of the prior art disadvantages or provides a useful alternative thereto by providing an apparatus and associated methods for dispensing therapeutic agents, and particularly applicators and methods for transdermally administering therapeutic agents to domestic animals.
  • an applicator for dispensing a therapeutic agent to an animal comprises a housing including first and second sections coupled together, the first and second sections defining a channel therebetween that includes at least one outlet; a hub integral with the first section and extending therefrom, the hub defining a conduit; and a bent path connecting the conduit to the channel.
  • the conduit, the bent path and the channel are fluidly connected.
  • a method of manufacturing an applicator for transdermally dispensing a therapeutic agent to an animal comprises providing a first housing section including a hub portion attachable to a syringe and a pair of spaced ribs with a groove formed therebetween, the hub portion further defining a conduit; providing a second housing section including a ledge, the ledge being formed by a pair of spaced grooves; mating the pair of spaced ribs with the pair of spaced grooves to form a channel for dispensing the therapeutic agent, the channel being fluidly connected to the conduit by way of a bent path; and coupling the first housing section to the second housing section to form an applicator body, the applicator body defining at least one outlet for dispensing the therapeutic agent.
  • a method for dispensing a therapeutic agent from an applicator of the type having a housing including first and second sections coupled together to form a channel and a hub extending from the housing, the hub being attachable to a syringe.
  • the method comprises attaching the hub to a syringe containing a therapeutic agent; placing an outlet of the applicator on or near the animal; causing the therapeutic agent to be released from the syringe into the applicator; passing the therapeutic agent through the hub, through a bent path and then into the channel; and dispensing the therapeutic agent from the applicator through the outlet.
  • FIG. 1 is a perspective view of an assembled applicator connected to a fluid delivery device and positioned on an animal for dispensing a therapeutic agent onto the animal in accordance with the teachings of the present invention
  • FIG. 2 is a perspective view an assembled applicator in accordance with the present invention.
  • FIG. 2A is an end view of an outlet from the assembled applicator of FIG. 2 taken along line 2 A;
  • FIG. 3 is a perspective view of the bottom section of an applicator in accordance with the present invention.
  • FIG. 4 is another perspective view of the bottom section of an applicator in accordance with the present invention.
  • FIG. 4A is a cross-sectional view of the top section of an applicator of FIG. 5 taken along line 5 A;
  • FIG. 4B is a cross-sectional view of the bottom section of an applicator of FIG. 4 taken along line 4 B;
  • FIG. 4C is a cross-sectional view of the assembled applicator of FIG. 2 taken along line 4 C;
  • FIG. 5 is a perspective view of the top section of an applicator in accordance with the present invention.
  • FIG. 5A is a cross-sectional view of a different embodiment of a top section of an applicator
  • FIG. 5B is a cross-sectional view of a different embodiment of a bottom section of an applicator
  • FIG. 5C is a cross-sectional view of the assembled applicator after the top section of FIG. 5A is ultrasonically welded with the bottom section of FIG. 5B ;
  • FIG. 6 is a cross-sectional side view of an assembled applicator of FIG. 2 taken along line 6 ;
  • FIG. 7A is a cross-sectional view of another embodiment of a top section of an applicator
  • FIG. 7B is a cross-sectional view of another embodiment of a bottom section of an applicator
  • FIG. 7C is a cross-sectional view of the assembled applicator after the top section of FIG. 7A is ultrasonically welded with the bottom section of FIG. 7B ;
  • FIG. 8 is a cross-sectional view of an assembled applicator in accordance with the present invention.
  • FIG. 8A is a magnified cross-sectional view of a portion of the assembled applicator of FIG. 8 and indicated by circle 8 A;
  • FIG. 8B is a cross-sectional view of the assembled applicator of FIG. 8 showing a plane passing through the joint.
  • the present invention is generally directed to drug delivery devices for dispensing liquid based formulations to animals, particularly domesticated or companion animals such as, but not limited to, dogs, cats, horses and the like. While certainly not intended to be required herein, the present invention is particularly useful for transdeimally delivering doses of controlled veterinary substances (e.g., Fentanyl) to the coat and skin of an animal, which may include a human. As such, it should be understood and appreciated herein that the drug delivery devices, systems and methods of the present invention can also be used with other types of fluids, liquids or gels without straying from the teachings of the present invention.
  • controlled veterinary substances e.g., Fentanyl
  • Some non-limiting examples of other such substances envisioned to be useful in accordance with the present teachings include, but are not limited to, therapeutic agents, pesticides, parasiticides, glues, solvents, lubricants, medicaments and the like.
  • therapeutic agents include, but are not limited to, therapeutic agents, pesticides, parasiticides, glues, solvents, lubricants, medicaments and the like.
  • the present disclosure will primarily focus on therapeutic agents as the illustrative and non-limiting dispensing substance; however, as is clearly explained above, the teachings of the present invention are not intended to be limited to these therapeutic applications alone.
  • the drug delivery device includes an applicator device or tip that is compatible with a standard luer lock syringe and consists of a housing that allows the formulation to be spread over a large surface area of the animal's skin or coat.
  • the applicator body includes one or more outlets that are in the form of legs or tines configured to penetrate the fur of the animal and thereby deliver the drug directly to the animal's skin or coat.
  • the outlet(s) further includes a pair of spaced prongs or feet that extend from its distal end, thereby allowing the therapeutic agent to be freely dispensed onto the surface of the animal.
  • the spaced feet extend outwardly from the distal end of applicator, they are the only structural portion of the assembled applicator that directly contact and seal against the surface of the animal. Moreover, since the outlet opening is positioned between the spaced apart prongs and in such a manner that it does not directly contact or seal against the surface of the animal during a dispensing operation, the therapeutic agent is able to be freely dispensed and spread onto the animal without being physically impeded or interrupted.
  • FIG. 1 depicts a perspective view of a user 100 dispensing a therapeutic agent onto an animal 102 .
  • a fluid delivery device 104 containing therapeutic agent is releasably attached to an applicator device 106 and then placed on or near the surface of the animal 102 .
  • fluid delivery device 104 as a standard syringe
  • delivery of the therapeutic agent may be accomplished by any known fluid delivery device or connector that is releasably attachable to the applicator device 106 and having a reservoir for holding and/or storing the therapeutic agent to be dosed or dispensed.
  • Other such non-limiting and illustrative fluid delivery devices that may also be used in accordance with the present invention include, but are not limited to, syringes, catheters, hubbed needles, IV tubes and cylinder fluid delivery devices.
  • the applicator devices 106 of the present invention generally consist of at least two parts or halves (i.e., sections 114 and 214 ) that are coupled or assembled together to form the applicator structure.
  • the devices of the present invention include two sections 114 , 214 that are somewhat complementary in terms of structure, yet specifically shaped in such a manner that once assembled, the therapeutic agent can be dispensed therefrom without experiencing much associated leakage or residual buildup. More particularly, the sections 114 , 214 are structurally shaped such that when they are coupled together, the therapeutic agent is discouraged from leaking out of the applicator body.
  • the structural orientation of the dispensing passageway that is created between the first and second sections is shaped in such a manner that substantially all of the therapeutic agent is encouraged from being dispensed from the applicator device during a dispensing operation.
  • FIG. 2 a perspective view of a fully assembled applicator 106 in accordance with the present invention is shown.
  • the applicator 106 includes a housing or body 108 defining an inlet hub 110 and an outlet 112 .
  • the inlet hub 110 is attachable to the drug delivery device 104 during a dispensing operation, whereas the outlet portion 112 is capable of penetrating the fur of an animal so that the therapeutic agent can be appropriately dispensed therefrom and onto the surface of the animal.
  • the applicator 106 can be made from polyethylene, polypropylene, polyvinyl acetate, polystyrene, polyethylene terephthalate, polybutylene terephthalate, and polytetrafluoroethylene, and the like.
  • the applicator 106 comprises first and second sections or faces ( 114 , 214 ) that are coupled or assembled together to form the housing 108 .
  • the first section 114 includes a top surface 117 , a bottom surface 118 , a back edge 119 integral with the inlet hub 110 and first and second sides 120 , 122 , the first and second sides being defined by a pair of substantially parallel outlet ends or legs 123 , 125 that extend from and partially surround a substantially flat middle section 121 that is disposed between the first and second sides 120 , 122 .
  • ribs 124 , 126 Extending upwardly from the top surface 117 of the first preassembled section 114 and positioned substantially along its outer periphery are a pair of ribs 124 , 126 that are spaced from each other in a parallel fashion.
  • the ribs 124 , 126 are trapezoidal shaped and have four sides with the top and bottom sides being parallel to one another.
  • the spaced ribs 124 , 126 have a groove or channel 127 that is formed therebetween.
  • the groove 127 is sunken or depressed below the top surface 117 of the first section, thereby creating a channel for delivering the therapeutic agent to the outlet ends 123 , 125 and ultimately onto the animal.
  • the groove 127 is provided as a depression below the surface 117 and has a substantially semi-circular shape.
  • FIG. 4B illustrates a cross-sectional view of the first section 114 taken along line 4 B of FIG. 4 .
  • the first preassembled section 114 is configured to be coupled to and molded with the second preassembled section 214 to form a fully assembled applicator device 106 .
  • the channel or groove 127 that is formed between the ribs 124 and 126 is positioned and shaped in such a manner that a fluid passageway or conduit for dispensing the therapeutic agent is formed between the fluid delivery device 104 and the dispensing end of the outlet 112 once section 114 is coupled to and molded with section 214 .
  • the second preassembled section 214 has a shape that is substantially similar to and which complements the first preassembled section 114 ; however, it does not have a corresponding inlet hub portion or a rib and groove arrangement like that of the first section 114 .
  • the second section 214 includes a top surface 217 , a bottom surface 218 , and a back edge 219 having a rounded portion 221 that is substantially centrally located along the back edge 219 and is configured to substantially align with the inlet hub 110 portion of the first section during assembly.
  • the inlet hub 110 has a flat end portion 110 a that is complementarily shaped to and configured to seamlessly mate with a flat end portion 214 a of the second section 214 .
  • the second preassembled section 214 also includes first and second sides 220 , 222 that are defined by a pair of substantially parallel outlet ends or legs 223 , 225 that extend from and partially surround a substantially flat middle section 227 that is disposed between the first and second sides 220 , 222 .
  • Extending outwardly from the bottom surface 218 of the second section and positioned substantially along its outer periphery is a ledge or energy director 224 that is formed by a pair of spaced grooves 226 , 228 .
  • FIG. 4A illustrates a cross-sectional view of the second section 214 taken along line 4 A of FIG. 5 .
  • the pair of spaced ribs 124 , 126 of the first preassembled section 114 are configured to substantially align with (and mate) the spaced grooves 226 , 228 of the second section 214 , thereby forming the passageway or channel 127 for dispensing the therapeutic agent.
  • the passageway 127 is asymmetric relative to a seamless joint 113 that attaches the first and second sections 114 , 214 together.
  • FIGS. 4C and 6 A fully assembled view of the first and second sections 114 , 214 aligned and mated together can be seen in FIGS. 4C and 6 , which respectively depict a cross-sectional view of the assembled applicator 106 from FIG. 2 taken along line 4 C and a cross-sectional side view of the assembled applicator 106 from FIG. 2 taken along line 6 .
  • the spaced ribs 124 , 126 meld into grooves 226 , 228 so that a seamless joint 113 is formed between the two faces 114 , 214 , and the channel 127 is formed therebetween.
  • a substantially flat portion of the channel 127 is defined by the seamless joint 113 .
  • the channel 127 creates a fluid passageway between the inlet hub 110 and the one or more outlets 112 .
  • the distal end 112 a of the applicator's outlet is open (see reference numeral 127 a) so the therapeutic agent can be emptied from channel 127 during a dispensing application.
  • the first and second preassembled sections 114 , 214 can be coupled together to form an assembled applicator 106 by various known plastic molding and manufacturing methods.
  • the applicator 106 is formed by ultrasonically welding the first and second preassembled sections 114 , 214 together.
  • the first and second preassembled sections 114 , 214 are mated and aligned together as explained above, and an ultrasonic weld, for instance along the ledge 224 , is initiated to thereby cause the sections to seamlessly meld or join together.
  • the process of ultrasonically welding two plastic parts together along an energy director that has been formed into one of the preassembled parts allows a bond to be formed that is tensile and resists the tendency of forces to tear the bond apart.
  • the ultrasonic energy melts the point contact between the parts, thereby creating a seamless joint.
  • these types of welds can typically be strengthened by either increasing the weld depth, or increasing the size of the energy director to provide a larger weld area.
  • the structure of the first section 114 and second section 214 is advantageous in forming a substantially semi-circular channel 127 that encourages a therapeutic agent to be dispensed therethrough while leaving only a minimal amount of residual remaining in the channel after use.
  • the weld path i.e., seamless joint 113
  • the channel 127 has a substantially flat portion, the ribs 124 , 126 can be positioned closer to one another. As such, the channel 127 can be smaller thereby reducing the overall volume of the channel, which effectively reduces the amount of residual therapeutic agent remaining in the channel after dispensing the agent therethrough.
  • each groove is substantially V-shaped and the ledge 224 is substantially flat, as shown in FIG. 4A , such that when the first and second preassembled sections 114 , 214 are mated and aligned together there is very little, if any, flash remaining in the channel 127 .
  • the ultrasonic energy melts the energy director, i.e., ledge 224 , to form the joint 113 between the first and second sections 114 , 214 .
  • the energy director i.e., ledge 224
  • the channel 127 is formed without flash forming in the channel. Flash can disrupt or obstruct the flow of the therapeutic agent passing through the channel 127 . Larger amounts of residual fluid can remain in the channel after the therapeutic agent is dispensed when flash is present in the channel 127 . By reducing or eliminating flash, the channel 127 maintains a substantially semi-circular shape therethrough, which as described above reduces the amount of residual therapeutic agent remaining in the channel after use.
  • FIG. 5A a different embodiment of a second section 514 having a top surface 517 and bottom surface 518 is shown.
  • a different cross-section of the second section 514 is illustrated in which grooves 526 , 528 are trapezoidal.
  • the trapezoidal grooves 526 , 528 are complementary to the trapezoidal ribs 124 , 126 of the first section 114 ( FIG. 5B ).
  • An energy director or ledge 524 of the second section 514 is substantially flat and therefore similar to the ledge 224 in FIG. 4A . As can be seen in FIG.
  • the spaced ribs 124 , 126 meld into grooves 526 , 528 so that a seamless joint 113 is formed between the two faces 117 , 518 , and the channel 127 is formed therebetween.
  • the mating of the trapezoidal grooves 526 , 528 with the trapezoidal ribs 126 , 128 produces flash 540 which fills a portion of the channel 127 .
  • the flash 540 reduces the size of the channel 127 such that the channel 127 no longer is semi-circular.
  • One reason flash is produced in the channel is due to the difficulty of welding the trapezoidal grooves 526 , 528 and the trapezoidal ribs 126 , 128 .
  • FIG. 7A another embodiment of a second section 714 having a top surface 717 and bottom surface 718 is shown.
  • the second section 714 includes grooves 726 , 728 which are V-shaped and therefore similar to the grooves 226 , 228 of FIG. 4A .
  • the second section 714 also includes an energy director or ledge 724 that is not flat. Instead, the ledge 724 is pressed above the bottom surface 718 and has a semi-circular cross-section.
  • the shape of the ledge 724 complementarily corresponds with the semi-circular channel 127 of the first section 114 shown in FIG. 7B . As can be seen in FIG.
  • the spaced ribs 124 , 126 meld into grooves 726 , 728 so that a seamless joint 113 is formed between the two faces 117 , 718 , and the channel is formed therebetween.
  • the channel 127 formed between the first and second sections has a substantially circular cross-section, but flash 740 forms in the channel thereby inhibiting flow therethrough. Flash is produced in the channel 127 due to the difficulty of welding the two sections together.
  • the ledge 724 is no longer substantially flat. In particular, there is very little material along the ledge 724 that contacts the first section 114 for ultrasonically welding the two sections together.
  • the inlet hub 110 is fluidly connected to the first section 114 by way of a path 128 that is disposed between a pair of openings 130 , 132 .
  • the fluid connection between the inlet hub 110 and the first section 114 defines a conduit for receiving the therapeutic agent from the fluid delivery device 104 to the groove or channel 127 .
  • the inlet hub 110 has a first opening 130 that is disposed at the proximal end 211 of the inlet hub 110 and functions as an insertion hole for receiving the dispensing end of the fluid delivery device (such as device 104 in FIG.
  • the inlet hub 110 is designed to functionally form an opening for the fluid delivery device 104 so that the therapeutic agent can be easily and conveniently dispensed therefrom.
  • the inlet hub 110 has a pair of winged ears 111 adapted to lock to the fluid delivery device (not shown). More particularly, the fluid delivery device (e.g., device 104 in FIG. 1 ) is inserted into first opening 130 and securely attached to inlet hub 110 by any fastening means known in the art.
  • Exemplary connection means in accordance with the present invention include, but are not limited to, luer lock connections. Luer lock connections are well known in the field of medicine and are typically used for coupling a syringe or other such liquid or gas source to a catheter line or medical device.
  • the luer connectors of the present invention may be female or male in orientation and may function as luer-locking devices, luer-slip connection devices or the like.
  • the luer lock connection is achieved between the fluid delivery device 104 and the winged ears 111 of the inlet hub 110 .
  • the flow path 128 undergoes a significant reduction in diameter along the direction of fluid flow (i.e., from the inlet hub 110 to the distal end 112 a of the outlet 112 ). This is necessary to adapt the applicator for connection to larger fluid delivery devices at the end of hub 110 on the one hand, and on the other hand to the very small channel 127 through which the fluid is moved before being dispensed from the outlet(s) 112 .
  • This reduction in diameter causes significant pressure within path 128 , which in turn can cause leakage if there are any weak or vulnerable points such as weld seams along path 128 .
  • path 128 is bent or shaped such that it is circuitous in nature—i.e., is not a direct route between the first and second openings 130 , 132 and changes direction one or more times. In this manner, path 128 is formed entirely within a single section, section 114 , of the applicator, which avoids weld seams being present for any of the structure that defines path 128 .
  • the interface between the first and second sections i.e., joint 113 ( FIG. 2 ) defines a plane 800 that passes therethrough. As shown in this illustrative embodiment, the path 128 is offset from the plane 800 .
  • the structure defining path 128 can be appreciated with reference to FIGS. 8 and 8A , wherein the conduit defined by the inlet hub 110 includes a short hollow cylindrical chamber 134 that is disposed between the first and second openings 130 , 132 and terminates substantially centrally into the channel 127 at the second opening 132 .
  • Chamber 134 is typically designed such that it is dimensionally non-uniform (i.e., varies in width and height between the first opening 130 and the second opening 132 ).
  • the internal diameter of the chamber 134 changes to achieve the reduction in diameter and configuration needed to maintain path 128 within a single section 114 of the applicator. As mentioned above, the present inventors have found that this configuration avoids leakage of the therapeutic agent as it flows between the fluid delivery device and the channel.
  • one or more tubes or other such enclosed tubular structures can be internally incorporated into the structural design of the present applicators.
  • one or more chambers can be internally added into the inlet hub 110 portion and/or within the formed channel 127 of the applicator body. While such additional structure can be incorporated into any of the embodiments of the present invention without straying from the present teachings, it should be understood and appreciated herein that such structures are not required. More particularly, the present inventors have found that utilizing the bent path orientation and complementary structural design of the applicator sections makes it possible to achieve a tubeless design that is not only free of manifolds, but is also capable of operating without resultant leakage.
  • the chamber 134 contains ridges, ledges, or other such similar structures to cause a bending configuration and stepped down diameter of the path 128 .
  • the path 128 is positioned below the seamless joint 113 that is formed between the first and second sections 114 , 214 and underneath the channel 127 formed therebetween.
  • the second opening 132 directs the therapeutic agent into the channel in a direction that is substantially orthogonal to the lengthwise direction of the channel 127 .
  • a direction that is substantially orthogonal to the lengthwise direction of the channel 127 can be seen, for instance, with reference to FIGS. 8 and 8A .
  • the dimensions and/or geometric shape of the second opening 132 can be adjusted to fit a specific drug delivery application, in accordance with certain aspects of the present invention, the opening 132 is substantially rectangular in shape.
  • the bent path 128 comprises a substantially semi-circular portion that is connected to the conduit for receiving the therapeutic agent from the fluid delivery device 104 and the channel 127 .
  • the bent path 128 terminates at the second opening 132 , which in turn, is positioned substantially orthogonally relative to the substantially semi-circular portion of the bent path 128 .
  • the outlet 112 may include one or more prongs 129 for assisting with the dispensing of the therapeutic agent onto the surface of the animal.
  • the prongs 129 comprise spaced feet or tines that are configured to penetrate the fur of the animal 102 so that the applicator 106 can substantially reach or touch the surface of the animal's body during the dispensing of the therapeutic agent. This penetration allows a more efficient topical and transdermal release of the agent.
  • prongs or other such structural projections from the outlet 112 will discourage capillary action or attraction (i.e., will stop the therapeutic agent from moving upwardly along the outside of the outlet) from happening during the dispensing action. The minimization and/or elimination of such capillary action effects are particularly beneficial when dealing with therapeutic agents that can be considered harmful and/or dangerous.
US12/581,658 2009-10-19 2009-10-19 Transdermal dispensing apparatus and methods Abandoned US20110092922A1 (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
US12/581,658 US20110092922A1 (en) 2009-10-19 2009-10-19 Transdermal dispensing apparatus and methods
TW099133902A TWI478700B (zh) 2009-10-19 2010-10-05 經皮施藥裝置與方法
ARP100103806A AR081116A1 (es) 2009-10-19 2010-10-18 Aparato y metodos para administracion transdermica
EP10773463.4A EP2490524B1 (en) 2009-10-19 2010-10-19 Transdermal dispensing apparatus
MX2012003829A MX338203B (es) 2009-10-19 2010-10-19 Aparato de suministro transdermico y metodos.
UY0001032955A UY32955A (es) 2009-10-19 2010-10-19 Aparato y métodos para administración transdérmica
ES10773463T ES2776976T3 (es) 2009-10-19 2010-10-19 Aparato de dispensación transdérmica
JP2012534442A JP2013508036A (ja) 2009-10-19 2010-10-19 経皮的に投与する装置およびその方法
CA2773173A CA2773173C (en) 2009-10-19 2010-10-19 Transdermal dispensing apparatus and methods
AU2010308222A AU2010308222B2 (en) 2009-10-19 2010-10-19 Transdermal dispensing apparatus and methods
UAA201204840A UA107677C2 (uk) 2009-10-19 2010-10-19 Пристрій для дозованого нанесення лікарського засобу для трансдермального введення
BR112012009147-6A BR112012009147B1 (pt) 2009-10-19 2010-10-19 Aplicador para administrar transdermicamente um agente terapêutico a um animal
NZ598292A NZ598292A (en) 2009-10-19 2010-10-19 Transdermal dispensing apparatus and methods
PCT/US2010/053206 WO2011049951A1 (en) 2009-10-19 2010-10-19 Transdermal dispensing apparatus and methods
CN201080047041.6A CN102665396B (zh) 2009-10-19 2010-10-19 经皮给药的分配装置和方法
IL218291A IL218291A (en) 2009-10-19 2012-02-23 A device for trans-dermal distribution of pharmaceutical preparations
ZA2012/03370A ZA201203370B (en) 2009-10-19 2012-05-09 Transdermal dispensing apparatus and methods
HK13102781.4A HK1175363A1 (en) 2009-10-19 2013-03-06 Transdermal dispensing apparatus and methods
US14/618,993 US9883932B2 (en) 2009-10-19 2015-02-10 Transdermal dispensing apparatus and methods
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US20150150665A1 (en) * 2009-10-19 2015-06-04 Eli Lilly And Company Transdermal dispensing apparatus and methods
USD828653S1 (en) 2016-12-14 2018-09-11 Brandon Penland Treatment applicator
EP2723673B1 (fr) * 2011-06-24 2020-01-22 Heidi Hall Mors et système pour envoyer une substance visqueuse et/ou liquide dans la bouche d'un animal
US10569069B2 (en) 2016-12-14 2020-02-25 Combat Comb, Llc Applicator for treatments applied to animal skin
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US20180084888A1 (en) * 2016-09-23 2018-03-29 The Beachwaver Co. Liquid dispensing cap
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* Cited by examiner, † Cited by third party
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US20150150665A1 (en) * 2009-10-19 2015-06-04 Eli Lilly And Company Transdermal dispensing apparatus and methods
US9883932B2 (en) * 2009-10-19 2018-02-06 Aircom Manufacturing, Inc. Transdermal dispensing apparatus and methods
EP2723673B1 (fr) * 2011-06-24 2020-01-22 Heidi Hall Mors et système pour envoyer une substance visqueuse et/ou liquide dans la bouche d'un animal
JP2014094168A (ja) * 2012-11-09 2014-05-22 Dainippon Printing Co Ltd 薬剤収納容器
USD828653S1 (en) 2016-12-14 2018-09-11 Brandon Penland Treatment applicator
USD862008S1 (en) 2016-12-14 2019-10-01 Brandon Penland Treatment applicator
US10569069B2 (en) 2016-12-14 2020-02-25 Combat Comb, Llc Applicator for treatments applied to animal skin
US10905103B1 (en) 2017-11-15 2021-02-02 Kyle Edward McKiver Device for assisting application of medicaments to pets

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JP2015128627A (ja) 2015-07-16
US9883932B2 (en) 2018-02-06
CN102665396A (zh) 2012-09-12
CA2773173A1 (en) 2011-04-28
UA107677C2 (uk) 2015-02-10
MX338203B (es) 2016-04-07
CN102665396B (zh) 2015-02-18
BR112012009147A2 (pt) 2016-08-16
NZ598292A (en) 2014-01-31
IL218291A0 (en) 2012-04-30
EP2490524A1 (en) 2012-08-29
IL218291A (en) 2015-07-30
BR112012009147B1 (pt) 2018-05-29
CA2773173C (en) 2016-06-28
HK1175363A1 (en) 2013-07-05
WO2011049951A1 (en) 2011-04-28
EP2490524B1 (en) 2020-01-22
US20150150665A1 (en) 2015-06-04
MX2012003829A (es) 2012-05-08
TW201129345A (en) 2011-09-01
JP2013508036A (ja) 2013-03-07
AR081116A1 (es) 2012-06-27
ES2776976T3 (es) 2020-08-03
ZA201203370B (en) 2013-08-28
JP6165792B2 (ja) 2017-07-19
TWI478700B (zh) 2015-04-01
AU2010308222A1 (en) 2012-03-15

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