US4907968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental syringe shield or prophylactic
Assignee: STERISHIELD PRODUCTS Inc
•
Filing: 1988-05-06
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Granted: 1990-03-13
•
Expires: 2008-05-06
Abstract
Abstract A dental syringe covering, shield or prophylactic comprised of a thin, tear-resistant, but deformable material which is sterile and disposable for covering the exposed nozzle surfaces of different types of dental syringes providing a covering which will significantly reduce and/or prevent the spread of diseases which may be transmitted by or through contact with human body fluids and tissues during dental procedures.
Inventors
- 👤 Mark R. Eisner
- 👤 Charlton D. Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
144 words
A removable disposable dental syringe covering, shield or prophylactic for placement over and in proximate contact with the nozzle of a dental syringe 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 syringe in conjunction with the treatment of two or more patients comprising an elongated cylindrical portion for fitting over the nozzle of the dental syringe and a barrel portion for fitting over the nozzle securing means of the dental syringe, and further comprising a backsplash collar shield means, which fits over the nozzle portion and abuts the front of the base portion of the dental syringe, for preventing body tissues and/or fluids expelled from the mouth of a patient from attaching or adhering to other portions of the dental syringe.
Claim 2
Dependent Claim
144 words
A removable disposable dental syringe covering, shield or prophylactic for placement over and in proximate contact with the nozzle of a dental syringe 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 syringe in conjunction with the treatment of two or more patients comprising an elongated cylindrical portion for fitting over the nozzle of the dental syringe and a barrel portion for fitting over the nozzle securing means of the dental syringe, and further comprising a backsplash collar shield means, which fits over the nozzle portion and abuts the front of the base portion of the dental syringe, for preventing body tissues and/or fluids expelled from the mouth of a patient from attaching or adhering to other portions of the dental syringe.
Claim 3
Dependent Claim
43 words
In accordance with claim 1 wherein the internal dimensions of the shield are just slightly larger than the external dimensions of the nozzle and nozzle securing means in order to provide a snug fit and to maintain the shield in place during use.
Claim 4
Dependent Claim
34 words
In accordance with claim 2 wherein asceptic medicaments, talc and lubricants are applied to the inner surface of the shield for continued disinfection and for lubrication in the application and removal of the shield.
Claim 5
Dependent Claim
21 words
In accordance with claim 1 wherein the outer surface of the shield has a medium to high degree of frictional contact.
Claim 6
Dependent Claim
35 words
In accordance with claim 1 wherein the shield is made from a material selected from the group consisting of thermoplastics, vinyls, latexes, rubbers, elastomerics, or other polymer-type materials, natural or man-made, or any combination thereof.
Claim 7
Dependent Claim
39 words
In accordance with claim 5 wherein said material exhibits sufficient deformability to conform to the particular shape of the dental syringe nozzle and nozzle securing means and toughness or wear-resistance to withstand pulling and stretching during application and removal.
Claim 8
Dependent Claim
30 words
In accordance with claim 1 wherein said backsplash collar shield means is circular in shape having a central aperture for fitting over the nozzle securing means of the dental syringe.
Claim 9
Dependent Claim
31 words
In accordance with claim 1 wherein said backsplash collar shield means is substantially hemispheric in shape having a central aperture for fitting over the nozzle securing means of the dental syringe.
Claim 10
Dependent Claim
21 words
In accordance with claim 1 wherein said backsplash collar shield means has a radius with an upper range of two inches.
Claim 11
Dependent Claim
44 words
In accordance with claim 1 wherein one or more additives selected from the group consisting of asceptic medicaments, talc, and lubricants are applied to the inner surface of the shield for continued disinfection and for lubrication in the application and removal of the shield.
Claim 12
Dependent Claim
107 words
In combination, a dental syringe having a nozzle and a nozzle securing means and a removable disposable covering, shield or prophylactic removably fitted over and in proximate contact with the nozzle and nozzle securing means of the dental syringe 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 syringe in conjunction with the treatment of two or more patients, said shield comprising an elongated cylindrical portion for fitting over the nozzle and a barrel portion of larger diameter for fitting over the nozzle securing means.
Claim 13
Dependent Claim
107 words
In combination, a dental syringe having a nozzle and a nozzle securing means and a removable disposable covering, shield or prophylactic removably fitted over and in proximate contact with the nozzle and nozzle securing means of the dental syringe 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 syringe in conjunction with the treatment of two or more patients, said shield comprising an elongated cylindrical portion for fitting over the nozzle and a barrel portion of larger diameter for fitting over the nozzle securing means.
Claim 14
Dependent Claim
44 words
In accordance with claim 11 wherein the internal dimensions of the shield are just slightly larger than the external dimensions of the nozzle and the nozzle securing means in order to provide a snug fit and to maintain the shield in place during use.
Claim 15
Dependent Claim
34 words
In accordance with claim 11 wherein asceptic medicaments, talc, and lubricants are applied to the inner surface of the shield for continued disinfection and for lubrication in the application and removal of the shield.
Claim 16
Dependent Claim
44 words
In accordance with claim 1 wherein one or more additives selected from the group consisting of asceptic medicaments, talc, and lubricants are applied to the inner surface of the shield for continued disinfection and for lubrication in the application and removal of the shield.
Claim 17
Dependent Claim
21 words
In accordance with claim 11 wherein the outer surface of the shield has a medium to high degree of frictional contact.
Claim 18
Dependent Claim
35 words
In accordance with claim 11 wherein the shield is made from a material selected from the group consisting of thermoplastics, vinyls, latexes, rubbers, elastomerics, or other polymer-type materials, natural or man-made, or any combination thereof.
Claim 19
Dependent Claim
39 words
In accordance with claim 16 wherein said material exhibits sufficient deformability to conform to the particular shape of the dental syringe nozzle and nozzle securing means and toughness or tear-resistance to withstand pulling and stretching during application and removal.
Claim 20
Dependent Claim
59 words
In accordance with claim 11 wherein the shield or prophylactic further comprises a backsplash collar shield means, which fits over the nozzle portion and abuts the front of the base portion of the dental syringe, for preventing body tissues and/or fluids expelled from the mouth of a patient from attaching or adhering to other portions of the dental syringe.
Claim 21
Dependent Claim
30 words
In accordance with claim 18 wherein said backsplash collar shield means is circular in shape having a central aperture for fitting over the nozzle securing means of the dental syringe.
Claim 22
Dependent Claim
31 words
In accordance with claim 18 wherein said backsplash collar shield means is substantially hemispheric in shape having a central aperture for fitting over the nozzle securing means of the dental syringe.
Claim 23
Dependent Claim
21 words
In accordance with claim 18 wherein said backsplash collar shield means has a radius with an upper range of two inches.
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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) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |