US3736935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical sponge
Assignee: Codman and Shurtleff Inc
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Filing: 1971-02-17
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Granted: 1973-06-05
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Expires: 1991-02-17
Abstract
Abstract A surgical sponge useful for delicate surgical procedures is made by providing a strip of nonwoven fibers which are securely bonded against delamination, and bonding a plastic retrieval thread to the surface of the strip by heat-softening a portion of the thread to cause it to flow partially into the surface of the strip. The resulting sponge may also have a band of radiopaque material bonded to its surface by heat-softening the plastic material of the band.
Inventors
- 👤 H Reimels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:11
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/36; A61F13/20; A61F13/2082; A61F13/44; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/47; B29C66/69; B29C66/70; B29C66/72; B29C66/729; B29C66/7294; B29C66/73; B29C66/739; B29C66/7392; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/83; B29C66/832; B29C66/8322; A61B; A61B90/00; A61B90/39; B29C66/71; B29C66/712; B29K; B29K2313/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
A surgical sponge useful for delicate procedures comprising: a substantially flat strip of securely bonded nonwoven fibers; a plastic retrieval thread bonded to only one surface of said strip, said bond being achieved solely by a flattened portion of said thread that is interlocked with the surface fibers of said strip; and a band of radiopaque material bonded to the surface of said strip at a location different from said thread.
Claim 2
Dependent Claim
71 words
A surgical sponge useful for delicate procedures comprising: a substantially flat strip of securely bonded nonwoven fibers; a plastic retrieval thread bonded to only one surface of said strip, said bond being achieved solely by a flattened portion of said thread that is interlocked with the surface fibers of said strip; and a band of radiopaque material bonded to the surface of said strip at a location different from said thread.
Claim 3
Dependent Claim
32 words
ThE sponge of claim 1 wherein the bond between said radiopaque material and said strip is achieved solely by the interlocking contact between said material and the surface fibers of said strip.
Claim 4
Dependent Claim
29 words
The sponge of claim 2 wherein said nonwoven fibers are rayon, said plastic retrieval thread is a continuous multi-filament polyester and said radiopaque material is vinyl containing barium sulfate.
Claim 5
Dependent Claim
55 words
A surgical sponge useful for delicate procedures comprising: a substantially flat strip of securely bonded nonwoven rayon fibers; and a continuous multifilament polyester retrieval thread bonded to only one surface of said strip, said bond being achieved solely by a flattened portion of said thread that is interlocked with the surface fibers of said strip.
Claim 6
Dependent Claim
55 words
A surgical sponge useful for delicate procedures comprising: a substantially flat strip of securely bonded nonwoven rayon fibers; and a continuous multifilament polyester retrieval thread bonded to only one surface of said strip, said bond being achieved solely by a flattened portion of said thread that is interlocked with the surface fibers of said strip.
References Cited (Backward Citations)
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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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |