Patent US4592728A successfully refreshed from Google Patents.
US4592728A
Expired / Lapsed
US
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Periodontal lavage delivery system
Assignee: Individual
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Filing: 1984-04-30
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Granted: 1986-06-03
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Expires: 2004-04-30
Abstract
Abstract Collected bacteria in a deep periodontal pocket may be treated without the need for periodontal surgery by introducing a delivery instrument into the pocket through its open end, and then delivering a bactericidal solution to the bottom of the pocket through the delivery instrument. The delivery instrument comprises a capillary tube formed with an elbow at a predetermined distance from its distal end and adapted at its proximal end for detachable connection to a grip member and duct means communicating with a source of therapeutic fluid, the flow of which is controlled by the user.
Inventors
- 👤 Dennis R. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:31
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/06; A61C19/063; A61C1/00; A61C1/08; A61C1/18; A61C17/00; A61C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
235 words
Apparatus for use in therapeutic lavage of periodontal pockets comprising: a generally cylindrical grip member; a delivery tip comprising a base portion and a capillary tube fixed at the proximal end thereof to said base portion, said base portion being detachably mounted to said grip member, said capillary tube being formed of stainless steel of 25 to 30 gauge having a central bore opening directly into the distal end of said delivery tip, and having an elbow defining an obtuse angle in the range of 120 to 150 degrees at a predetermined distance of at least 10 mm from said distal end to facilitate insertion of said tube into a periodontal pocket, said capillary tube being further provided with indicia, in the form of alternately colored bands around said capillary tube, of the distance from said distal end; a base unit containing reservoir means for holding a therapeutic lavage fluid; electric pump means for actuating flow from said reservoir means; duct means in flow communication with said delivery tip and said reservoir means; and touch-sensitive switch means positioned on said grip member to be actuated by finger or thumb pressure when the grip member is grasped for use, said switch means being connection to actuate said electric pump means thereby producing a controlled flow of therapeutic lavage fluid from said reservoir means through said delivery tip for delivery to the depths of a periodontal pocket.
Claim 2
Dependent Claim
235 words
Apparatus for use in therapeutic lavage of periodontal pockets comprising: a generally cylindrical grip member; a delivery tip comprising a base portion and a capillary tube fixed at the proximal end thereof to said base portion, said base portion being detachably mounted to said grip member, said capillary tube being formed of stainless steel of 25 to 30 gauge having a central bore opening directly into the distal end of said delivery tip, and having an elbow defining an obtuse angle in the range of 120 to 150 degrees at a predetermined distance of at least 10 mm from said distal end to facilitate insertion of said tube into a periodontal pocket, said capillary tube being further provided with indicia, in the form of alternately colored bands around said capillary tube, of the distance from said distal end; a base unit containing reservoir means for holding a therapeutic lavage fluid; electric pump means for actuating flow from said reservoir means; duct means in flow communication with said delivery tip and said reservoir means; and touch-sensitive switch means positioned on said grip member to be actuated by finger or thumb pressure when the grip member is grasped for use, said switch means being connection to actuate said electric pump means thereby producing a controlled flow of therapeutic lavage fluid from said reservoir means through said delivery tip for delivery to the depths of a periodontal pocket.
References Cited (Backward Citations)
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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) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |