US4626251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical sponge
Assignee: Individual
•
Filing: 1985-02-22
•
Granted: 1986-12-02
•
Expires: 2005-02-22
Abstract
Abstract A radiopaque tell-tale filament is disposed between two plies of a multi-ply surgical sponge in the quadrangular area defined by the stitched or folded edges of the sponge and an inwardly disposed continuous stitch. The ends of the tell-tale are embedded in the stitching but the intermediate portion of the filament is otherwise freely disposed in the quadrangular area.
Inventors
- 👤 Albert Shen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/44; A61B; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
146 words
A surgical sponge having a plurality of plies of absorbent material, each edge of the sponge being sealed either by a fold in said material which thereby defines two plies or by stitching joining the edge of each ply to the corresponding edge of each contiguous ply, at least one continuous stitch through said plies being disposed inwardly from and roughly paralllel to a first of said sealed edges so as to define, together with second and third adjoining transverse sealed edges, a roughly quadrangular area, and at least one radiopaque thread disposed within said quadrangular area between two plies of said sponge, said radiopaque thread being embedded at first and second points in the stitching defining at least one side of said quadrangular area but with the portion of said radiopaque thread between said points being otherwise freely disposed within and unbound to said sponge.
Claim 2
Dependent Claim
146 words
A surgical sponge having a plurality of plies of absorbent material, each edge of the sponge being sealed either by a fold in said material which thereby defines two plies or by stitching joining the edge of each ply to the corresponding edge of each contiguous ply, at least one continuous stitch through said plies being disposed inwardly from and roughly paralllel to a first of said sealed edges so as to define, together with second and third adjoining transverse sealed edges, a roughly quadrangular area, and at least one radiopaque thread disposed within said quadrangular area between two plies of said sponge, said radiopaque thread being embedded at first and second points in the stitching defining at least one side of said quadrangular area but with the portion of said radiopaque thread between said points being otherwise freely disposed within and unbound to said sponge.
Claim 3
Dependent Claim
61 words
A surgical sponge according to claim 1 wherein said radiopaque thread is doubled backed upon itself so as to form a double strand with the portion of the thread at which said double backing occurs being embedded at said first point in said stitching and the two free ends of the thread being embedded at said second point in said stitching.
Claim 4
Dependent Claim
38 words
A surgical sponge according to claim 1 wherein said absorbent material is folded so as to define at least two plies of said sponge and said fold constitutes a sealed edge defining one side of said quadrangular area.
Claim 5
Dependent Claim
35 words
A surgical sponge according to claim 3 wherein said fold constitutes said first sealed edge and at least one of the points at which said radiopaque thread is embedded lies in said inwardly disposed stitching.
Claim 6
Dependent Claim
60 words
A surgical sponge according to claim 4 wherein said radiopaque thread is doubled backed upon itself so as to form a double strand with the portion of the thread at which said double backing occurs being embedded in said inwardly disposed stitching and the two free ends of the thread being embedded in stitching defining an adjoining transverse sealed edge.
Claim 7
Dependent Claim
56 words
A surgical sponge according to claim 5 wherein said sponge also comprises a loop stitched to but extending beyond the adjoining transverse edge of said sponge, the two ends of said radiopaque thread being embedded in the stitching defining the adjoining tranverse edge at the same point at which said loop is stitched to said sponge.
References Cited (Backward Citations)
US3097649A
Cited
US3133538A
Cited
CA948387A
Cited
US3698393A
Cited
US3756241A
Cited
US4068666A
Cited
US4540398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |