US4728290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental hand piece shield or prophylactic
Assignee: Individual
•
Filing: 1987-04-28
•
Granted: 1988-03-01
•
Expires: 2007-04-28
Abstract
Abstract A dental hand piece protective covering, shield or prophylactic comprised of a thin, tear-resistant, semi-rigid but elastic material which is sterile and disposable for covering the entirety of each of several different types of dental hand pieces providing opposing top and bottom apertures therein for access to the releasable securing means for the dental bur or other dental tool, clearance for operation of the bur or other dental tool and an air exhaust port for the air-driven turbines. The apparatus will significantly reduce and/or prevent the spread of disease through the re-use of non-sterile dental hand pieces.
Inventors
- 👤 Mark R. Eisner
- 👤 James M. Hatfield, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:06
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/16
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
267 words
A removable disposable sterile dental hand piece shield or prophylactic for placement over and in proximate contact with a dental hand piece, having head, arm, and handle portions, for significantly reducing the spread of communicable diseases which may be transmitted by or through contact with human body fluids and tissues during a first and subsequent uses of the dental hand piece in conjunction with the treatment of two or more patients eliminating the need for repeated sterilization of said dental hand piece between such uses for the two or more patients comprising a head portion and a skirt or sleeve portion; said head portion being substantially cylindrical, having opposed substantially annular apertures in the top and bottom thereof and having an extension protruding outward from the side of the head portion for connecting to and mating with the skirt or sleeve portion, said bottom aperture providing an opening with clearance sufficient for attachment, detachment and operation of a dental bur or other tool without contacting the rim of the opening, said top aperture providing an opening with clearance sufficient for manipulation of the dental bur or other tool releasable securing means and for exhaust of the air from the dental bur or other tool turbine drive means; said skirt or sleeve portion being substantially annular over its entire length along the arm and handle portions of the dental hand piece, having an extension at its proximal end over the arm portion of the dental hand piece for connecting to and mating with the extension of the head portion and having at its distal end a reinforcing collar.
Claim 2
Dependent Claim
267 words
A removable disposable sterile dental hand piece shield or prophylactic for placement over and in proximate contact with a dental hand piece, having head, arm, and handle portions, for significantly reducing the spread of communicable diseases which may be transmitted by or through contact with human body fluids and tissues during a first and subsequent uses of the dental hand piece in conjunction with the treatment of two or more patients eliminating the need for repeated sterilization of said dental hand piece between such uses for the two or more patients comprising a head portion and a skirt or sleeve portion; said head portion being substantially cylindrical, having opposed substantially annular apertures in the top and bottom thereof and having an extension protruding outward from the side of the head portion for connecting to and mating with the skirt or sleeve portion, said bottom aperture providing an opening with clearance sufficient for attachment, detachment and operation of a dental bur or other tool without contacting the rim of the opening, said top aperture providing an opening with clearance sufficient for manipulation of the dental bur or other tool releasable securing means and for exhaust of the air from the dental bur or other tool turbine drive means; said skirt or sleeve portion being substantially annular over its entire length along the arm and handle portions of the dental hand piece, having an extension at its proximal end over the arm portion of the dental hand piece for connecting to and mating with the extension of the head portion and having at its distal end a reinforcing collar.
Claim 3
Dependent Claim
20 words
In accordance with claim 1 wherein said head portion has a thickness in the range between 3 and 30 mils.
Claim 4
Dependent Claim
22 words
In accordance with claim 1 wherein said skirt or sleeve portion has a thickness in the range between 0.5 and 5 mils.
Claim 5
Dependent Claim
27 words
In accordance with claim 1 wherein said skirt or sleeve portion has a nominal diameter in its relaxed state in the range between 0.25 and 0.375 inches.
Claim 6
Dependent Claim
35 words
In accordance with claim 1 wherein said reinforcing collar of the skirt or sleeve portion has a thickness in the range between 3 and 30 mils for maintaining the shield in its fully distended position.
Claim 7
Dependent Claim
41 words
In accordance with claim 1 wherein said reinforcing collar of the skirt or sleeve portion has a tab distending therefrom for use in applying and/or removing the shield, said tab having a thickness in the range between 3 and 30 mils.
Claim 8
Dependent Claim
40 words
In accordance with claim 1 wherein said top aperture has a rim providing a semi-rigid opening for maintaining the sterile integrity of the shield about the opening, said rim having a thickness in the range between 3 and 30 mils.
Claim 9
Dependent Claim
40 words
In accordance with claim 1 wherein said bottom aperture has a rim providing a semi-rigid opening for maintaining the sterile integrity of the shield about the opening, said rim having a thickness in the range between 3 and 30 mils.
Claim 10
Dependent Claim
29 words
In accordance with claim 1 wherein said bottom aperture is elongated to encompass a water spraying means located in the proximal portion of the arm of the hand piece.
Claim 11
Dependent Claim
28 words
In accordance with claim 1 wherein said bottom aperture is elongated to encompass an illuminating means located in the proximal portion of the arm of the hand piece.
Claim 12
Dependent Claim
33 words
In accordance with claim 1 wherein said bottom aperture is elongated to encompass a water spraying means and an illuminating means located in the proximal portion of the arm of the hand piece.
Claim 13
Dependent Claim
66 words
In accordance with claim 1 wherein a second bottom aperture has a rim providing a semi-rigid opening for maintaining the sterile integrity of the shield about the opening, said rim having a thickness in the range between 3 and 30 mils provides an opening to encompass a water spraying means and an illuminating means located in the proximal portion of the arm of the hand piece.
Claim 14
Dependent Claim
39 words
In accordance with claim 1 wherein asceptic medicaments are applied to the inner surface of the head and the skirt or sleeve of the shield for continued disinfection and for lubrication in the application and removal of the shield.
Claim 15
Dependent Claim
23 words
In accordance with claim 1 wherein the outer surface of the skirt or sleeve has a medium to high degree of frictional contact.
Claim 16
Dependent Claim
23 words
In accordance with claim 1 wherein the shield is made from an elastomeric or elastic material, natural or man-made or any combination thereof.
Claim 17
Dependent Claim
47 words
In accordance with claim 15 wherein said elastomeric or elastic material exhibits sufficient deformability to stretch over the hand piece, toughness and/or tear-resistance to withstand pulling and stetching during application and/or removal and material memory to return to and/or retain its original size and shape after removal.
Claim 18
Dependent Claim
182 words
A removable disposable sterile dental hand piece shield or prophylactic for placement over and in proximate contact with a dental hand piece, having head, arm, and handle portions, for significantly reducing the spread of communicable diseases which may be transmitted by or through contact with human body fluids and tissues during a first and subsequent uses of the dental hand piece in conjunction with the treatment of two or more patients comprising a head portion and a skirt or sleeve portion; said head portion being substantially cylindrical, having opposed substantially annular apertures in the top and bottom thereof and having an extension protruding outward from the side of the head portion for connecting to and mating with the skirt or sleeve portion; said skirt or sleeve portion being substantially annular over its entire length along the arm and handle portions of the dental hand piece, having an extension at its proximal end over the arm portion of the dental hand piece for connecting to and mating with the extension of the head portion and having at its distal end a reinforcing collar.
Claim 19
Dependent Claim
182 words
A removable disposable sterile dental hand piece shield or prophylactic for placement over and in proximate contact with a dental hand piece, having head, arm, and handle portions, for significantly reducing the spread of communicable diseases which may be transmitted by or through contact with human body fluids and tissues during a first and subsequent uses of the dental hand piece in conjunction with the treatment of two or more patients comprising a head portion and a skirt or sleeve portion; said head portion being substantially cylindrical, having opposed substantially annular apertures in the top and bottom thereof and having an extension protruding outward from the side of the head portion for connecting to and mating with the skirt or sleeve portion; said skirt or sleeve portion being substantially annular over its entire length along the arm and handle portions of the dental hand piece, having an extension at its proximal end over the arm portion of the dental hand piece for connecting to and mating with the extension of the head portion and having at its distal end a reinforcing collar.
Claim 20
Dependent Claim
20 words
In accordance with claim 17 wherein said head portion has a thickness in the range between 3 and 30 mils.
Claim 21
Dependent Claim
22 words
In accordance with claim 17 wherein said skirt or sleeve portion has a thickness in the range between 0.5 and 5 mils.
Claim 22
Dependent Claim
27 words
In accordance with claim 17 wherein said skirt or sleeve portion has a nominal diameter in its relaxed state in the range between 0.25 and 0.375 inches.
Claim 23
Dependent Claim
35 words
In accordance with claim 17 wherein said reinforcing collar of the skirt or sleeve portion has a thickness in the range between 3 and 30 mils for maintaining the shield in its fully distended position.
Claim 24
Dependent Claim
41 words
In accordance with claim 17 wherein said reinforcing collar of the skirt or sleeve portion has a tab distending therefrom for use in applying and/or removing the shield, said tab having a thickness in the range between 3 and 30 mils.
Claim 25
Dependent Claim
43 words
In accordance with claim 17 wherein said top aperture provides an opening with clearance sufficient for manipulation of the dental bur or other tool releasable securing means and for exhaust of the air from the dental bur or other tool turbine drive means.
Claim 26
Dependent Claim
40 words
In accordance with claim 17 wherein said top aperture has a rim providing a semi-rigid opening for maintaining the sterile integrity of the shield about the opening, said rim having a thickness in the range between 3 and 30 mils.
Claim 27
Dependent Claim
34 words
In accordance with claim 17 wherein said bottom aperture provides an opening with clearance sufficient for attachment, detachment and operation of a dental bur or other tool without contacting the rim of the opening.
Claim 28
Dependent Claim
40 words
In accordance with claim 17 wherein said bottom aperture has a rim providing a semi-rigid opening for maintaining the sterile integrity of the shield about the opening, said rim having a thickness in the range between 3 and 30 mils.
Claim 29
Dependent Claim
29 words
In accordance with claim 17 wherein said bottom aperture is elongated to encompass a water spraying means located in the proximal portion of the arm of the hand piece.
Claim 30
Dependent Claim
28 words
In accordance with claim 17 wherein said bottom aperture is elongated to encompass an illuminating means located in the proximal portion of the arm of the hand piece.
Claim 31
Dependent Claim
33 words
In accordance with claim 17 wherein said bottom aperture is elongated to encompass a water spraying means and an illuminating means located in the proximal portion of the arm of the hand piece.
Claim 32
Dependent Claim
66 words
In accordance with claim 17 wherein a second bottom aperture has a rim providing a semi-rigid opening for maintaining the sterile integrity of the shield about the opening, said rim having a thickness in the range between 3 and 30 mils provides an opening to encompass a water spraying means and an illuminating means located in the proximal portion of the arm of the hand piece.
Claim 33
Dependent Claim
39 words
In accordance with claim 17 wherein asceptic medicaments are applied to the inner surface of the head and the skirt or sleeve of the shield for continued disinfection and for lubrication in the application and removal of the shield.
Claim 34
Dependent Claim
23 words
In accordance with claim 17 wherein the outer surface of the skirt or sleeve has a medium to high degree of frictional contact.
Claim 35
Dependent Claim
23 words
In accordance with claim 17 wherein the shield is made from an elastomeric or elastic material, natural or man-made or any combination thereof.
Claim 36
Dependent Claim
47 words
In accordance with claim 33 wherein said elastomeric or elastic material exhibits sufficient deformability to stretch over the hand piece, toughness and/or tear-resistance to withstand pulling and stetching during application and/or removal and material memory to return to and/or retain its original size and shape after removal.
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Cited
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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) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |