US4778387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide attachment for dental treatment tip
Assignee: Nakanishi Inc
•
Filing: 1987-02-26
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Granted: 1988-10-18
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Expires: 2007-02-26
Abstract
Abstract A guide attachment for guiding a dental treatment tip such as a dental bur is provided. The guide attachment is composed of a guide member for guiding the dental treatment tip and a fixing member for mounting the guide member to a dental handpiece in which the dental treatment tip is accommodated.
Inventors
- 👤 Hiroyuki Komatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/082
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
A guide attachment for guiding a dental treatment tip to perform dental treatment comprising: guide means for guiding said dental treatment tip; and mounting means for mounting said guide means to a dental handpiece in which said dental treatment tip is accommodated; said guide means including a guide member, a chuck unit adapted for accommodating and securing said guide member at a desired longitudinal position, a longitudinal positioning unit associated with said chuck unit so that said chuck unit is adjusted longitudinally along the length of said guide member, and an angular positioning unit for adjusting the angular position of said guide member relative to said dental treatment tip within a plane passing through both the longitudinal centerlines of said dental treatment tip and said guide member.
Claim 2
Dependent Claim
127 words
A guide attachment for guiding a dental treatment tip to perform dental treatment comprising: guide means for guiding said dental treatment tip; and mounting means for mounting said guide means to a dental handpiece in which said dental treatment tip is accommodated; said guide means including a guide member, a chuck unit adapted for accommodating and securing said guide member at a desired longitudinal position, a longitudinal positioning unit associated with said chuck unit so that said chuck unit is adjusted longitudinally along the length of said guide member, and an angular positioning unit for adjusting the angular position of said guide member relative to said dental treatment tip within a plane passing through both the longitudinal centerlines of said dental treatment tip and said guide member.
Claim 3
Dependent Claim
29 words
A guide attachment as claimed in claim 1 wherein said guide member extends to and terminates at a position proximate to the foremost point of the dental treatment tip.
Claim 4
Dependent Claim
27 words
A guide attachment as claimed in claim 1 or 2 wherein said guide means comprises a protective plate adapted for avoiding damage by said dental treatment tip.
Claim 5
Dependent Claim
16 words
A guide attachment as claimed in claim 1 wherein said guide member has length adjustment means.
Claim 6
Dependent Claim
27 words
A guide attachment as claimed in claim 4 wherein said length adjustment means comprises a resilient length adjustment member interposed between adjacent sections of the guide member.
Claim 7
Dependent Claim
33 words
A guide attachment as claimed in claim 4 wherein a rotary member is provided to a foremost part of said guide member for effecting rotation about said foremost part of said guide member.
Claim 8
Dependent Claim
47 words
A guide attachment as claimed in claim 1 wherein said chuck unit comprises a collet for accommodating the guide member and a collet sleeve for accommodating said collet and wherein the guide member is secured at a desired position by moving said collet in said collet sleeve.
Claim 9
Dependent Claim
23 words
A guide attachment as claimed in claim 1 wherein said chuck unit comprises a micrometer for measuring the position of said guide member.
Claim 10
Dependent Claim
44 words
A guide attachment as claimed in claim 1 wherein said mounting means is mounted to a head housing of the dental handpiece and wherein said mounting means comprises means for rotating and securing said guide means to a desired position around said head housing.
Claim 11
Dependent Claim
57 words
A guide attachment as claimed in claim 9 wherein said mounting means comprises an annular member engaged in a mating groove on the side wall of the head housing of the dental handpiece and wherein said means for rotating and securing include first engagement means in said annular member and second engagement means in said head housing.
Claim 12
Dependent Claim
25 words
A guide attachment as claimed in claim 10 wherein said first and second engagement means comprise a recess and a ball mounted on a spring.
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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) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |