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Last Updated: December 3, 2022

Details for Patent: 8,734,833

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Summary for Patent: 8,734,833
Title:Therapeutic foam
Abstract: A therapeutic foam for the treatment of, inter alia, varicose veins comprises a sclerosing solution foamed with a physiological gas such as carbon dioxide, oxygen or a mixture thereof. The foam has a nitrogen content of less than 0.8%. It may be generated using a pressurized canister system incorporating a fine mesh of micron dimensions through which the gas and sclerosing liquid are passed to make the foam. Alternatively, the foam may be generated by passing gas and solution between two syringes through a fine mesh. Techniques are described for minimizing the amount of nitrogen in a canister or syringe based product. A technique for generating and delivering foam simultaneously using a syringe based device is also disclosed.
Inventor(s): Wright; David Dakin Iorwerth (Henley on Thames, GB), Harman; Anthony David (Henley on Thames, GB), Robinson; Nikki (Newmachar, GB), Hodges; Garry (Welwyn, GB), Kadar; Adil (London, GB), Moggridge; Geoffrey D. (Cambridge, GB), Liew; Hugh Van (Barnstable, MA)
Assignee: BTG International Ltd. (GB)
Application Number:13/667,296
Patent Claim Types:
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Drugs Protected by US Patent 8,734,833

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 8,734,833

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0326768.9Nov 17, 2003
United Kingdom0422307.9Oct 7, 2004

International Family Members for US Patent 8,734,833

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 453379 See Plans and Pricing
Australia 2004290957 See Plans and Pricing
Australia 2004290959 See Plans and Pricing
Australia 2004290963 See Plans and Pricing
Australia 2004290965 See Plans and Pricing
Brazil PI0416611 See Plans and Pricing
Canada 2546076 See Plans and Pricing
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Express Scripts
Boehringer Ingelheim

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