or
Bookmark and Share
Noninvasive dermal anesthetics
   
Document Number
US Patent 5919479
Issued Date
July 6, 1999
Link
Inventors
Zhang; Jie (Salt Lake City, UT)
Zhang; Hao (Salt Lake City, UT)
Map
Abstract
An apparatus, product formulation, and method for improved dermal permeation of pharmaceuticals wherein the apparatus includes a thin drug formulation reservoir and a heat-generating chamber separated by a first non-permeable wall, wherein the reservoir and chamber are formed in or supported by a housing. The drug formulation reservoir houses or is capable of housing a predetermined amount of a formulation containing pharmaceutically-active agent(s). The heat-generating/temperature-regulating chamber includes a medium for generating controlled heat, preferably a chemical composition made of carbon, iron, water and/or salt which is activated upon contact with air (oxygen). The function of the heat-generating/temperature-regulating element is to heat the user's skin, rapidly bring the skin temperature to a desired and elevated narrow range and keep it in this range for sufficient time to obtain more rapid, enhanced and less variable dermal absorption of selected pharmaceutically-active agents and to obtain improved clinical effects. Structure for controlling the generation of heat is also disclosed. The apparatus may optionally include a spacing or standoff structure which spans the drug formulation reservoir between the non-permeable wall and the user's skin surface for maintaining a predetermined thickness of the drug formulation on the user's skin surface. Also, a novel product formulation which can be used with the apparatus which uses high percentage of eutectic mixture of local anesthetics to reduce the overall degradation rate of the local anesthetic compound(s) in formulations which are subject to hydrolysis.
Drawing
Noninvasive dermal anesthetics - US Patent 5919479 Drawing
Drawing from US Patent 5919479
Tags:
Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
Number of Claims:
12
Comments:
no comments yet
Owner
Zars, Inc. (Salt Lake City, UT)
Published
July 6, 1999
Application Number
08/819,880
Filed
March 18, 1997
US Classification
424/449   424/448 514/817 514/937 514/938 514/944
Int'l Classification
A61K   9/70   (20060101)   A61F   13/00   (20060101)   A61M   37/00   (20060101)  
Attorney/Law Firm
Parent Case
PRIOR APPLICATION This is a divisional of application Ser. No. 08/508,463, filed Jul. 28, 1995, now U.S. Pat. No. 5,658,583.
USPTO Field of Search
424/448   424/449   514/937   514/944   514/938   514/817  
Related Patents
6756053 - Controlled heat induced rapid delivery of pharmaceuticals from skin depot - Owned by Zars, Inc. (Salt Lake City, UT)

The present invention is directed to a method and system for delivering a drug into the systemic circulation. The method comprises establishing a drug depot in a patient's skin and/or sub-skin tissues by applying a transdermal drug delivery system on the patients skin, for a predetermined time so that a drug depot is formed in said user's skin and/or sub-skin tissues. A heating source is placed proximate to the skin area to rapidly release a bolus of the drug from the depot into the systemic circulation when there is a need to rapidly increase the drug's concentrations in the systemic circulation.

7198614 - Method and apparatus for adapting clothing to allow access for medical procedures - Owned by Charlie's Chemo T-Shirts, Inc. (Greensboro, NC)

The present invention is directed to a method and apparatus for positioning and creating an opening in a person's shirt or blouse at a location that varies depending on the underlying location necessary to perform a medical procedure. The created opening allows access to a porta-cath without requiring the patient to remove his/her shirt/blouse.

6455066 - Intradermal-penetration agents for topical local anesthetic administration - Owned by Epicept Corporation (Englewood Cliffs, NJ)

A non-invasive and non-systemic method for administering a local anesthetic. The method comprises topical application of a local anesthetic in combination with an intradermal-penetration agent selected from the group consisting an aloe composition, a triglyceride, and a mixture thereof.

6746689 - Intradermal-penetration agents for topical local anesthetic administration - Owned by EpiCept Corporation (Englewood Cliff, NJ)

A non-invasive and non-systemic method for administering a local anesthetic. The method comprises topical application of a local anesthetic in combination with an intradermal-penetration agent selected from the group consisting an aloe composition, a triglyceride, and a mixture thereof.

6383511 - Local prevention or amelioration of pain from surgically closed wounds - Owned by EpiCept Corporation (Englewood Cliffs, NJ)

A non-invasive and non-systemic method for intradermal prevention OR amelioration of pain from a surgically closed wound is disclosed. The method comprises topical delivery of a local anesthetic to an exterior surface of a surgically closed wound.

Claims
Description
About| FAQs| Terms & Disclaimer| Link to Us| Contact Us