US4294797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servicing composition for spraying on medical instruments
Assignee: Kaltenbach and Voigt GmbH
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Filing: 1980-04-18
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Granted: 1981-10-13
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Expires: 2000-04-18
Abstract
Abstract A servicing composition which is sprayed from a container on or into a medical instrument e.g. a dental handpiece. The servicing composition includes an oil and propellant mixture for lubrication purposes but, for improved sterlizing purposes during subsequent hot-air heating and sterilizing of a medical instrument, an alcohol-aldehyde active substance combination in a proportion of 5 to 15% by weight is added to the mixture which is sprayed on the instrument. The preferred alcohol is isopropanol and the preferred aldehyde is formaldehyde or a succinic acid dialdehyde complex, and the preferred ratio of alcohol to aldehyde is 1:1.
Inventors
- 👤 Eugen Eibofner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:48
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0043; A; A01; A01N; A01N35/00; A01N35/02; A61; A61L; A61L2/00; A61L2/16; A61L2/18; C09; C09K; C09K3/00; C09K3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A method of lubricating and sterilizing a medical instrument comprising: spraying a servicing composition on said instrument so that the latter is wetted internally and externally with the servicing composition, said composition comprising a mixture of a lubricating oil and a propellant, and a sterilizing agent added to said mixture and comprising an isopropanol-aldehyde active substance combination in a proportion of 5 to 15% by weight of the servicing composition wherein the aldehyde is selected from the group consisting of formaldehyde and a succinic acid dialdehyde complex; and heating the medical instrument, so as to increase the sterilizing effect of said active substance combination, until the active substance combination has vaporized.
Claim 2
Independent Claim
111 words
A method of lubricating and sterilizing a medical instrument comprising: spraying a servicing composition on said instrument so that the latter is wetted internally and externally with the servicing composition, said composition comprising a mixture of a lubricating oil and a propellant, and a sterilizing agent added to said mixture and comprising an isopropanol-aldehyde active substance combination in a proportion of 5 to 15% by weight of the servicing composition wherein the aldehyde is selected from the group consisting of formaldehyde and a succinic acid dialdehyde complex; and heating the medical instrument, so as to increase the sterilizing effect of said active substance combination, until the active substance combination has vaporized.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |