US4821740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endermic application kits for external medicines
Assignee: TACHIBANA SHUNRO 1-6-18 KUSAGAE CHUO-KU FUKUOKA-SHI FUKUOKA-KEN JAPAN
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Filing: 1987-11-13
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Granted: 1989-04-18
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Expires: 2007-11-13
Abstract
Abstract Disclosed is an endermic application kit for external medicines, which comprises a drug-containing layer (3) as provided near an ultrasonic oscillator (2). The kit includes a cylindrical fixed-type or portable-type and a flat regular-type or adhesive-type, and the adhesive-type may be flexible and elastic. The drug absorption is ensured by the action of the ultrasonic waves from the oscillator (2) and the drug release can be controlled by varying the ultrasonic wave output from the oscillator (2).
Inventors
- 👤 Shunro Tachibana
- 👤 Uichi Shibata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
A; A61; A61M; A61M37/00; A61H; A61H23/00; A61H23/02; A61H23/0245; A61M37/0092; A61H2201/00; A61H2201/10; A61H2201/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
An endermic application kit for external medicines, comprising: a disc-like ceramic ultrasonic oscillator having a terminal at one end adapted to be connected to an external oscillator device; a drug-containing layer situated below the disc-like ceramic ultrasonic oscillator, a drug-permeable adhesive layer laminated below the drug-containing layer so that when the ultrasonic oscillator is actuated, the drug contained in the drug-containing layer is applied to a skin of a patient through the drug-permeable layer, drug concentration in blood being rapidly carried out by controlling release rate of the drug in the kit, and a protective cover covering the disc-like ceramic ultrasonic oscillator and the drug-containing layer.
Claim 2
Dependent Claim
106 words
An endermic application kit for external medicines, comprising: a disc-like ceramic ultrasonic oscillator having a terminal at one end adapted to be connected to an external oscillator device; a drug-containing layer situated below the disc-like ceramic ultrasonic oscillator, a drug-permeable adhesive layer laminated below the drug-containing layer so that when the ultrasonic oscillator is actuated, the drug contained in the drug-containing layer is applied to a skin of a patient through the drug-permeable layer, drug concentration in blood being rapidly carried out by controlling release rate of the drug in the kit, and a protective cover covering the disc-like ceramic ultrasonic oscillator and the drug-containing layer.
References Cited (Backward Citations)
SU614788A1
Cited
US4309989A
Cited
US4708716A
Cited
US4657543A
Cited
US4702732A
Cited
US4646754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |