Patent US3855705A successfully refreshed from Google Patents.
US3855705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endodontic operating system
Assignee: Individual
•
Filing: 1973-06-11
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Granted: 1974-12-24
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Expires: 1993-06-11
Abstract
Abstract An endodontic operating system which includes a measurement instrument and a sleeve adapted to be secured thereto; a working instrument and a measurement sleeve adapted to be secured thereto; a multi-purpose forceps or pliers; means for attaching the measurement sleeve to the working tool in predetermined relationship therewith and an assembly holder for holding the components of the system. The measurement instrument and sleeve thereof enable the instrument to be inserted into the root canal of a tooth with the sleeve secured thereto whereby by means of Xray a predetermined depth relationship can be determined. The working instrument and the measurement sleeve associated therewith of a new design and a further application to existing instruments enable that sleeve to be placed on the working instrument in such a fashion that the working instrument enters the tooth to the predetermined depth determined by the measurement instrument which further may serve as an operating handle for the working instrument. Securing of the sleeves to both the measuring and working instruments is accomplished by the multipliers or forceps. The assembly holder provides a place for storing these components as well as for means for securing the measurement sleeve to the working instrument in its predetermined relationship.
Inventors
- 👤 O Malmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/40; A61C5/44
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
135 words
An endodontic measurement and operating system for root canal work comprising; A. an elongate flexible measurement instrument having a handle portion and a shank portion, with said shank portion being adapted to be inserted into said root canal; B. an elongate, hollow, deformable, cylindrical sleeve having first and second ends telescopically received on and secured to the projecting handle portion of said instrument by crimping it thereto with said first end thereof abutting the crown of the tooth; C. forceps means having compression grooves in the jaws thereof for deforming and securing said sleeve to said handle portion of said measurement instrument 1. whereby the distance said shank of said instrument projects from said first end of said sleeve can be determined; and D. means for measuring the depth of penetration of said measurement instrument.
Claim 2
Dependent Claim
135 words
An endodontic measurement and operating system for root canal work comprising; A. an elongate flexible measurement instrument having a handle portion and a shank portion, with said shank portion being adapted to be inserted into said root canal; B. an elongate, hollow, deformable, cylindrical sleeve having first and second ends telescopically received on and secured to the projecting handle portion of said instrument by crimping it thereto with said first end thereof abutting the crown of the tooth; C. forceps means having compression grooves in the jaws thereof for deforming and securing said sleeve to said handle portion of said measurement instrument 1. whereby the distance said shank of said instrument projects from said first end of said sleeve can be determined; and D. means for measuring the depth of penetration of said measurement instrument.
Claim 3
Dependent Claim
13 words
The system of claim 1 wherein said shank has a smooth tapering periphery.
Claim 4
Dependent Claim
29 words
an adjustable measurement member movable relatively of said holder a. whereby the distance therebetween may be set to correspond to the depth of penetration established by said measurement instrument.
Claim 5
Dependent Claim
29 words
an adjustable measurement member movable relatively of said holder a. whereby the distance therebetween may be set to correspond to the depth of penetration established by said measurement instrument.
Claim 6
Dependent Claim
19 words
The system of claim 1 wherein said shank has a plurality of regularly spaced annular grooves on its periphery.
Claim 7
Dependent Claim
17 words
The system of claim 1 wherein said forceps means also include cutting pockets in the jaws thereof.
Claim 8
Dependent Claim
17 words
The system of claim 1 wherein said forceps means also include slitting means in the jaws thereof.
Claim 9
Dependent Claim
20 words
The system of claim 1 wherein said forceps means include means for electrically fusing said sleeve to said measurement instrument.
Claim 10
Dependent Claim
98 words
The system of claim 1 further characterized by the presence of A. an elongate working instrument having handle and shank portions; B. an elongate hollow, deformable sleeve having first and second ends telescopically received on the handle portion of said working instrument; and C. forceps means having compression grooves in the jaws thereof for deforming and securing said sleeve to said handle portion of said working instrument at a predetermined axial location, with said shank of said working instrument projecting from said first end thereof a distance equal to the depth of penetration established by said measurement instrument.
Claim 11
Dependent Claim
13 words
The system of claim 7 wherein said sleeve has a plain peripheral surface.
Claim 12
Dependent Claim
21 words
The system of claim 7 wherein said sleeve is transparent and has a series of regularly spaced indicia on its periphery.
Claim 13
Dependent Claim
20 words
The system of claim 7 wherein said forceps means include means for electrically fusing said sleeve to said working instrument.
Claim 14
Dependent Claim
15 words
The system of claim 7 further characterized by the presence of A. locating means including
Claim 15
Dependent Claim
23 words
The system of claim 11 further characterized by the fact that said forceps means is carried by said locating means adjacent said holder.
Claim 16
Dependent Claim
20 words
The device of claim 11 further characterized by the presence of compression means interconnecting said first ends of said arms.
Claim 17
Dependent Claim
20 words
The device of claim 11 further characterized by the presence of means for heating said second ends of said arms.
References Cited (Backward Citations)
US3358826A
Cited
US3781996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |