US3871099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning cavities with a combined fluid delivering and aspirating instrument
Assignee: KG Co
•
Filing: 1973-12-28
•
Granted: 1975-03-18
•
Expires: 1993-12-28
Abstract
Abstract The present invention relates to a method for cleansing a cavity with a combined fluid-delivering and aspirating instrument wherein nested hollow members are utilized having open ends adapted to enter a chamber or cavity such as a tooth cavity. The inner hollow member supplies fluids such as medicaments, antiseptics or other liquids to the tooth cavity from a suitable source and the outer hollow member aspirates material, including the liquid, blood and filings from the cavity. The outer hollow member is connected to a source of vacuum or an aspirating device and may include a separable tubular insert telescoped in the outer end of the outer hollow member. The inner hollow member is preferably in the form of a hypodermic needle or cannula which forms part of a reservoir constituting a source of fluid, e.g., the barrel of a hypodermic syringe. The outer hollow member or members are formed of a material such as a plastic composition which the needle may readily pierce or puncture and which is self-sealing to enable a fluid-tight seal at the puncture. The outer open ends of the tube and insert and the outer open end of the needle may be termed the working ends thereof. The hypodermic needle preferably extends slightly beyond the end of the outer hollow member into the cavity and is bent so that the upper end extends outwardly of the outer hollow member above the point where the end thereof enters the outer hollow member. It is unnecessary to otherwise fasten the hypodermic needle to the aspirating tube but, for integrity, this is preferably done. In any case, the arrangement is such that the outer hollow member and cannula are axially adjustable.
Inventors
- 👤 Henry Kahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/0208; A61C5/00; A61C5/40
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
190 words
A method particularly useful in dental and surgical procedures for cleansing a cavity by aspirating fluids and other materials from a cavity and delivering fluids such as medicaments into said cavity comprising inserting into the cavity the working end portion of a plastic suction tube of a self-sealing composition having memory when penetrated, the working end portion having the working end portion of a hypodermic needle which has been inserted through the wall of said tube portion in fluid-sealing relationship interiorly positioned in substantially coaxial relationship with the interior of said tube portion, the working end portion of the needle having been bent at an acute angle to the needle axis so that the portion of the needle remaining outside the tube for the attachment of a hypodermic syringe is at an angle to said suction tube, attaching a hypodermic syringe filled with the selected liquid to said needle, connecting the distal end of said suction tube to a vacuum source and simultaneously, or in selected independent sequence, delivering the liquid from the syringe into the cavity and withdraw liquid and other matter from said cavity through said suction tube.
Claim 2
Independent Claim
190 words
A method particularly useful in dental and surgical procedures for cleansing a cavity by aspirating fluids and other materials from a cavity and delivering fluids such as medicaments into said cavity comprising inserting into the cavity the working end portion of a plastic suction tube of a self-sealing composition having memory when penetrated, the working end portion having the working end portion of a hypodermic needle which has been inserted through the wall of said tube portion in fluid-sealing relationship interiorly positioned in substantially coaxial relationship with the interior of said tube portion, the working end portion of the needle having been bent at an acute angle to the needle axis so that the portion of the needle remaining outside the tube for the attachment of a hypodermic syringe is at an angle to said suction tube, attaching a hypodermic syringe filled with the selected liquid to said needle, connecting the distal end of said suction tube to a vacuum source and simultaneously, or in selected independent sequence, delivering the liquid from the syringe into the cavity and withdraw liquid and other matter from said cavity through said suction tube.
Claim 3
Dependent Claim
36 words
The method according to claim 1 wherein the working end of the needle and the working end of the suction tube are vertically adjusted with reference to each other to accommodate the geometry of the cavity.
Claim 4
Dependent Claim
35 words
The method according to claim 2 wherein a tubular extension is fitted into the working end of said tube and the working end of said needle is inserted through said tube wall above said extension.
Claim 5
Dependent Claim
24 words
The method according to claim 3 wherein the extension is of readily-puncturable material and the needle pierces both the suction tube and the extension.
Claim 6
Independent Claim
175 words
A method particularly useful in dental and surgical procedures for cleansing a cavity by aspirating fluids and other materials from a cavity and delivering fluids such as medicaments into said cavity comprising inserting the working end portion of a hypodermic needle which is bent at an acute angle to its axis through the wall of a plastic suction tube adjacent the working end thereof in substantially coaxial relationship with the interior of said tube to define an annular passageway therebetween, said tube being of a soft composition having memory which will form a fluid-tight seal when the tube wall is penetrated by said needle, connecting the distal end of said tube to a vacuum source, attaching a hypodermic syringe filled with the selected fluid to said needle, inserting the working end portion of said tube with the interiorly positioned needle into said cavity and simultaneouly, or in selected independent sequence, delivering the fluid from the syringe through the needle into the cavity and withdrawing liquid and other matter from the cavity through the suction tube.
Claim 7
Independent Claim
175 words
A method particularly useful in dental and surgical procedures for cleansing a cavity by aspirating fluids and other materials from a cavity and delivering fluids such as medicaments into said cavity comprising inserting the working end portion of a hypodermic needle which is bent at an acute angle to its axis through the wall of a plastic suction tube adjacent the working end thereof in substantially coaxial relationship with the interior of said tube to define an annular passageway therebetween, said tube being of a soft composition having memory which will form a fluid-tight seal when the tube wall is penetrated by said needle, connecting the distal end of said tube to a vacuum source, attaching a hypodermic syringe filled with the selected fluid to said needle, inserting the working end portion of said tube with the interiorly positioned needle into said cavity and simultaneouly, or in selected independent sequence, delivering the fluid from the syringe through the needle into the cavity and withdrawing liquid and other matter from the cavity through the suction tube.
Claim 8
Dependent Claim
36 words
The method according to claim 5 wherein the working end of the needle and the working end of the suction tube are vertically adjusted with reference to each other to accommodate the geometry of the cavity.
Claim 9
Dependent Claim
35 words
The method according to claim 6 wherein a tubular extension is fitted into the working end of said tube and the working end of said needle is inserted through said tube wall above said extension.
Claim 10
Dependent Claim
24 words
The method according to claim 7 wherein the extension is of readily-puncturable material and the needle pierces both the suction tube and the extension.
References Cited (Backward Citations)
US1189735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |