US5044951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental space and periodontal cavity measuring instrument
Assignee: Individual
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Filing: 1990-04-25
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Granted: 1991-09-03
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Expires: 2010-04-25
Abstract
Abstract A dental space and periodontal cavity measuring instrument for insertion in interdental or interproximal spaces between teeth and in periodontal cavities in both the upper and lower dental arches to determine the width of such spaces and the depth of the cavities, respectively, for appropriate treatment. The dental space and periodontal cavity measuring instrument is characterized by a centrally located handle provided with a pair of oppositely-extending single tips or multiple, elongated, graduated cylinders which terminate in graduated ends, for insertion in the interdental spaces and periodontal cavities. The calibrated cylinders and graduated ends may be extended in a straight line from the handle, or one or more cylinders in one or both of the calibrated and graduated tips may be angulated and the diameter of each cylinder may be indicated on the handle for size-identification purposes. The ends of the cylinder or stem tips may also be "waffled" with striations for ligature tucking purposes.
Inventors
- 👤 John J. Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:39
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
82 words
A dental space and periodontal cavity measuring instrument comprising handle means, a first calibrated, graduated portion projecting from one end of said handle means and an end portion extending from said first calibrated, graduated portion in angular relationship for insertion in the dental space and the periodontal cavity and ;measuring the width of the dental space and the depth of the periodontal cavity and at least one measuring mark provided on said end portion for indicating the depth of the periodontal cavity.
Claim 2
Dependent Claim
82 words
A dental space and periodontal cavity measuring instrument comprising handle means, a first calibrated, graduated portion projecting from one end of said handle means and an end portion extending from said first calibrated, graduated portion in angular relationship for insertion in the dental space and the periodontal cavity and ;measuring the width of the dental space and the depth of the periodontal cavity and at least one measuring mark provided on said end portion for indicating the depth of the periodontal cavity.
Claim 3
Dependent Claim
95 words
The dental space measuring instrument of claim 1 wherein said first calibrated, graduated portion and said end portion further comprises a first plurality of calibrated, graduated cylinders for insertion in the dental space, with the largest of said first plurality of calibrated, graduated cylinders extending from one end of said handle means and the last one of said first plurality of calibrated, graduated cylinders defining a first end portion for insertion in the periodontal cavity, said first end portion having at least one of said measuring mark for indicating the depth of the periodontal cavity.
Claim 4
Dependent Claim
186 words
The dental space measuring instrument of claim 1 wherein said first calibrated, graduated portion and said end portion further comprises: (a) a first plurality of calibrated, graduated cylinders adapted for insertion in the dental space, with the largest of said first plurality of calibrated, graduated cylinders extending from one end of said handle means and the smallest one of said first plurality of graduated cylinders adapted for insertion in the periodontal cavity and further comprising a first plurality of measuring marks provided on said smallest one of said first plurality of calibrated, graduated cylinders for indicating the depth of the periodontal cavity; and (b) a second plurality of calibrated, graduated cylinders adapted for insertion in the dental space, with the largest of said second plurality of calibrated, graduated cylinders extending from the opposite end of said handle means and the smallest one of said second plurality of graduated cylinders adapted for insertion in the periodontal cavity and further comprising a second plurality of measuring marks provided on the smallest one of said second plurality of calibrated, graduated cylinders for indicating the depth of the periodontal cavity.
Claim 5
Dependent Claim
32 words
The dental space measuring instrument of claim 3 further comprising measuring indicia provided on said handle means for indicating the size of said first and second plurality of calibrated, graduated cylinders, respectively.
Claim 6
Dependent Claim
86 words
The dental space measuring instrument of claim 1 further comprising: a second calibrated, graduated portion projecting from the opposite end of said handle means and a second end portion extending from said second calibrated, graduated portion in angular relationship, said second end portion further characterized by at least one measuring mark, and further comprising measuring indicia provided on said handle means for indicating the size of said first calibrated, graduated portion, said end portion and said second calibrated, graduated portion and said second end portion, respectively.
Claim 7
Dependent Claim
169 words
The dental space measuring instrument of claim 5 wherein: (a) said first calibrated, graduated portion further comprises a first plurality of calibrated, graduated cylinders adapted for insertion in the dental space, with the largest of said first plurality of calibrated, graduated cylinders extending from said one end of said handle means and the smallest of said first plurality of calibrated, graduated cylinders defined by said end portion for indicating the depth of the periodontal cavity; (b) said second calibrated, graduated portion further comprises a second plurality of calibrated, graduated cylinders adapted for insertion in the dental space, with the largest of said second plurality of calibrated, graduated cylinders extending from said opposite end of said handle means and the smallest of said second plurality of calibrated, graduated cylinders defined by said second end portion for indicating the depth of the periodontal cavity; and (c) said measuring indicia corresponds to the calibrated diameter of said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders, respectively.
Claim 8
Dependent Claim
185 words
An instrument for measuring interdental spacing and periodontal cavities, comprising an elongated handle, a first plurality of calibrated, graduated cylinders, with the largest one of said first plurality of calibrated, graduated cylinders extending from one end of said handle and the smallest one of said first plurality of calibrated, graduated cylinders defining a first end portion, at least one first measuring mark provided on said first end portion of said first plurality of calibrated, graduated cylinders, a second plurality of calibrated, graduated cylinders, with the largest one of said second plurality of calibrated, graduated cylinders extending from said opposite end of said handle and the smallest one of said second plurality of calibrated, graduated cylinders defining a second end portion of said second plurality of calibrated, graduated cylinders, whereby at least a portion of said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders are selectively inserted between adjacent teeth for measuring the interdental spacing and said first end portion and said second end portions are selectively inserted in the periodontal cavities for measuring the depth of the periodontal cavities.
Claim 9
Dependent Claim
185 words
An instrument for measuring interdental spacing and periodontal cavities, comprising an elongated handle, a first plurality of calibrated, graduated cylinders, with the largest one of said first plurality of calibrated, graduated cylinders extending from one end of said handle and the smallest one of said first plurality of calibrated, graduated cylinders defining a first end portion, at least one first measuring mark provided on said first end portion of said first plurality of calibrated, graduated cylinders, a second plurality of calibrated, graduated cylinders, with the largest one of said second plurality of calibrated, graduated cylinders extending from said opposite end of said handle and the smallest one of said second plurality of calibrated, graduated cylinders defining a second end portion of said second plurality of calibrated, graduated cylinders, whereby at least a portion of said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders are selectively inserted between adjacent teeth for measuring the interdental spacing and said first end portion and said second end portions are selectively inserted in the periodontal cavities for measuring the depth of the periodontal cavities.
Claim 10
Dependent Claim
35 words
The instrument of claim 7 wherein selected ones of said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders are angulated with respect to the longitudinal plane of said handle.
Claim 11
Dependent Claim
30 words
The instrument of claim 7 wherein said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders project substantially in the longitudinal plane of said handle.
Claim 12
Dependent Claim
51 words
The instrument of claim 7 wherein selected ones of said first plurality of calibrated, graduated cylinders are angulated with respect to the longitudinal plane of said handle and said second plurality of calibrated, graduated cylinders project from said opposite end of said handle substantially in the longitudinal plane of said handle.
Claim 13
Dependent Claim
47 words
The instrument of claim 7 further comprising first numerical indicia provided on said handle for indicating the diameter of said first calibrated plurality of calibrated, graduated cylinders and second numerical indicia provided on said handle for indicating the diameter of said second plurality of calibrated, graduated cylinders.
Claim 14
Dependent Claim
27 words
The instrument of claim 11 wherein selected ones of said first plurality of calibrated, graduated cylinders are angulated with respect to the longitudinal plane of said handle.
Claim 15
Dependent Claim
28 words
The instrument of claim 11 wherein second plurality of calibrated, graduated cylinders project from said opposite end of said handle substantially in the longitudinal plane of said handle.
Claim 16
Dependent Claim
51 words
The instrument of claim 11 wherein selected ones of said first plurality of calibrated, graduated cylinders are angulated with respect to the longitudinal plane of said handle and said second plurality of calibrated, graduated cylinders project from said opposite end of said handle substantially in the longitudinal plane of said handle.
Claim 17
Dependent Claim
39 words
The instrument of claim 11 further comprising arrow indicia provided on said handle for indicating which of said numerical indicia is applicable to said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders, respectively.
Claim 18
Dependent Claim
35 words
The instrument of claim 15 wherein selected ones of said first plurality of calibrated, graduated cylinders and said second plurality of calibrated, graduated cylinders are angulated with respect to the longitudinal plane of said handle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |