Intraoral dental radiographic film packet with thermoplastic comfort enhancing integrated frame
US6579007B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2000 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Mar 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An intraoral x-ray film packet is taught which includes a molded thermoplastic frame (preferably injection molded) to which an x-ray dental packet is sealed. The sealing method can be any one of a number of processes including, but not limited to RF sealing, induction heat sealing, or ultrasonic sealing, as well as using any one of various adhesives to affix the x-ray dental packet to the frame. The injection molded thermoplastic frame provides a cushion to buffer and a soft rounded edge to mask the sharp edges that occur on plastic encased x-ray dental packets. Sealing of the injection molded thermoplastic frame to the x-ray dental packet during manufacture results in a packet which includes a comfort enhancing perimeter frame permanently integrated therewith. In such manner, the dental film packet is manufactured with an integrally formed perimetric cushion. The dental film packet is preferably formed with an outer envelope wherein one of the opposing outer sheets is more rigid than the other. In this way, the laminated perimetric edge formed to bond the two outer sheets together is generally coplanar with the more rigid of the two outer sheets. This resultant planar surface on o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.