Methods and delivery devices using herbal extracts

• US 10,661,036 B2
• Filed: 06/30/2016
• Issued: 05/26/2020
• Est. Priority Date: 02/11/2014
• Status: Active Grant

• Current Assignee: Vapor Cartridge Technology, LLC
• Original Assignee: Vapor Cartridge Technology, LLC
• Inventors: McCullough, Timothy
• Primary Examiner(s): Woodward, Valerie L
• Application Number:
  US15/199,366
• Publication Number:
  US 20160310684A1
• Time in Patent Office: 1,426 Days
• CPC Class Codes: A24F 40/20 Devices using solid inhalable precursors
• CPC Class Codes: A24F 40/42 Cartridges or containers for inhalable precursors
• CPC Class Codes: A24F 40/70 Manufacture
• CPC Class Codes: A61K 31/05 Phenols cannabinoids A61K31/658
• CPC Class Codes: A61K 31/352 condensed with carbocyclic rings, e.g. methantheline cannabinoids A61K31/658
• CPC Class Codes: A61K 36/28 Asteraceae or Compositae (Aster or Sunflower family), e.g. chamomile, feverfew, yarrow or echinacea
• CPC Class Codes: A61K 36/38 Clusiaceae, Hypericaceae or Guttiferae (Hypericum or Mangosteen family), e.g. common St. Johnswort
• CPC Class Codes: A61K 36/53 Lamiaceae or Labiatae (Mint family), e.g. thyme, rosemary or lavender
• CPC Class Codes: A61K 36/537 Salvia (sage)
• CPC Class Codes: A61K 36/54 Lauraceae (Laurel family), e.g. cinnamon or sassafras
• CPC Class Codes: A61K 36/752 Citrus, e.g. lime, orange or lemon
• CPC Class Codes: A61K 36/82 Theaceae (Tea family), e.g. camellia
• CPC Class Codes: A61K 36/9068 Zingiber, e.g. garden ginger
• CPC Class Codes: A61M 11/042 electrical
• CPC Class Codes: A61M 15/002 with air flow regulating means
• CPC Class Codes: A61M 15/0028 using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
• CPC Class Codes: A61M 15/0045 using multiple prepacked dosages on a same carrier, e.g. blisters
• CPC Class Codes: A61M 15/005 the dosages being arranged on a cylindrical surface
• CPC Class Codes: A61M 15/0051 the dosages being arranged on a tape, e.g. strips
• CPC Class Codes: A61M 15/0066 with means for varying the dose size
• CPC Class Codes: A61M 15/06 : Inhaling appliances shaped like cigars, cigarettes or pipes
• CPC Class Codes: A61M 2207/00 : Methods of manufacture, assembly or production
• CPC Class Codes: H05B 1/025 : For medical applications
• CPC Class Codes: H05B 2203/017 : Manufacturing methods or apparatus for heaters
• CPC Class Codes: H05B 3/03 : Electrodes
• CPC Class Codes: H05B 3/34 : flexible, e.g. heating nets or webs
• CPC Class Codes: H05B 3/42 : non-flexible

Abstract

A method of purifying herbal extract(s) from an herbaceous plant composition includes heating the herbal extracts-containing composition to volatilize at least one of herbal extract(s) into a vapor and condensing the vapor on a substrate or wet extracting the herbal extract(s) by treatment of the herbaceous plant composition or a derivative thereof with a solvent for the herbal extract(s), separating the solution of herbal extract(s), forming a concentrate and casting the concentrate on the substrate to form a coating of the herbal extract(s) on the substrate. A corresponding delivery cartridge and delivery system can include a controllable heating element and the substrate coated with at least one of herbal extract(s). These are configured to allow passage of air over the substrate to volatilize or entrain the herbal extract(s) as a vapor, gas or aerosol for administration to a user.

Claims

1. An herbal extract delivery product comprising:

a cylindrical structure extending in a longitudinal direction and formed from a substrate of an electrically conductive material, the substrate being rolled to provide a spiral cross-section arrangement of spirally arranged strata of substrate, and at least a first section of the substrate being coated on one side thereof with at least one coating layer of at least one herbal extract, the cylindrical structure comprising;

at least a first set of electrodes extending longitudinally and laterally on an uncoated side of the substrate, the at least first set of electrodes having an electrical resistance sufficient to conduct current laterally along the substrate;

the first substrate section being coterminous with the at least first set of electrodes, the first substrate section having an electrical resistance high enough to conduct current from the first set of electrodes and resistively heat the first substrate section in response to the current conducted there through;

a plurality of electrically insulating spacers positioned to space apart adjacent strata of the spiral arranged substrate;

a control element for the electrodes that controls the time and temperature of heating; and

the at least one coating layer of at least one herbal extract is configured to volatilize or entrain into a gas or aerosol in response to the resistive heating of the first substrate section.

2. An herbal extract delivery product of claim 1 wherein multiple coating layers are present, each layer being a different herbal extract.

3. An herbal extract delivery product of claim 2 wherein the multiple coating layers are segregated and have a coterminous arrangement such that the layers are free from overlap.

4. An herbal extract delivery product of claim 3 having multiple pairs of electrodes, each pair connected to a different substrate section corresponding to a different coating layer and having an arrangement of the control element to volatilize sequentially the multiple layers of herbal extracts.

5. An herbal extract delivery product of claim 2 having an arrangement of the control element to volatilize sequentially the multiple layers of herbal extracts.

6. An herbal extract delivery product of claim 2 having overlapping layers of different herbal extracts, the layers being arranged by volatilization temperature of the herbal extract with the herbal extract having the lowest volatilization temperature being the top layer and the herbal extract having the highest volatilization temperature being the bottom layer adjacent to the substrate surface.

7. An herbal extract delivery product of claim 1 wherein the at least one herbal extract is obtained from an herbaceous plant selected from the group consisting of damiana, blue lotus, mullein, Lobelia, peppermint, spearmint, catnip, thyme, sage, wild dagga, lavender, rosemary, Salvia divinorum, basil, lemon balm, hops, yerba mate, calea zacatechichi, chamomile, ashwagandha Eucalyptus, passion flower, St John'"'"'s wart, valerian, Astragalus, Avena sativa, kinnikinnick, cacao, chago, cinnamon, nutmeg, mace, Cordyceps, Don Quai, Gotu Kola, ginger root, Ginseng, green tea, kava, maca, moringa leaf, mullein, sacred pink lotus, red raspberry, Rhodiola, rooibos, tong kat ali, vanilla, yohimbine, garlic, turmeric, nutmeg, capsaicin, rosemary, Cannabis, coniferous trees, yew bush, willow tree, aspen tree, blood root, opium poppy, Atropa belladonna, strychnine, Vinca rosea, coffee plant, cacao tree and beans, coca plant, Nicotinaa tabacum, Camelia sinensis, monkshood, castor oil, henbane, calabar bean, Digitalis sp, autumn Crocus, peyote, Amanita, orange, lemon, and any other known herbaceous plant which produces a known agent having useful medicinal, pharmacological, physiological, beneficial, sensory or other perceived measurable effects on humans and any combination thereof.

8. An herbal extract delivery product of claim 1 wherein the aerosol or vapor is inhalable by a user.

9. A method for producing a substrate coated on one side with at least one herbal extract, comprising comminuting herbaceous plant material to produce particulate material;

extracting the particulate plant material with a solvent in which the herbal extract is soluble to produce a solution;

concentrating the solution to produce a concentrate;

depositing the concentrate on one side of the substrate thereby producing a coated side and an uncoated side of the substrate; and

,

evaporating the solvent from the concentrate to produce at least one coating layer of the herbal extract on the coated side of the substrate;

attaching at least one set of electrodes longitudinally and laterally on the uncoated side of the substrate;

positioning a plurality of electrically insulating spacers on the uncoated side of the substrate and rolling the coated substrate so as to produce a cylindrical structure having a spiral cross-section arrangement of successive strata of substrate which strata are spaced apart by the insulating spacers.

10. A method of claim 9 wherein the at least one herbal extract is obtained from an herbaceous plant selected from the group consisting of damiana, blue lotus, mullein, Lobelia, peppermint, spearmint, catnip, thyme, sage, wild dagga, lavender, rosemary, Salvia divinorum, basil, lemon balm, hops, yerba mate, calea zacatechichi, chamomile, ashwagandha Eucalyptus, passion flower, St John'"'"'s wart, valerian, Astragalus, Avena sativa, kinnikinnick, cacao, chago, cinnamon, nutmeg, mace, Cordyceps, Don Quai, Gotu Kola, ginger root, Ginseng, green tea, kava, maca, moringa leaf, mullein, sacred pink lotus, red raspberry, Rhodiola, rooibos, tong kat ali, vanilla, yohimbine, garlic, turmeric, nutmeg, capsaicin, rosemary, Cannabis, coniferous trees, yew bush, willow tree, aspen tree, blood root, opium poppy, Atropa belladonna, strychnine, Vinca rosea, coffee plant, cacao tree and beans, coca plant, Nicotinaa tabacum, Camelia sinensis, monkshood, castor oil, henbane, calabar bean, Digitalis sp, autumn Crocus, peyote, Amanita, orange, lemon, and any other known herbaceous plant which produces a known agent having useful medicinal, pharmacological, physiological, beneficial, sensory or other perceived measurable effects on humans and any combination thereof.

11. A method according to claim 9 wherein the steps of comminuting, extracting, concentrating, depositing and evaporating are repeated one or more times with different herbaceous plant materials to produce multiple coating layers of herbal extracts on the substrate.