Patent US4645499A successfully refreshed from Google Patents.
US4645499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical sponge
Assignee: Kendall Co
•
Filing: 1985-09-24
•
Granted: 1987-02-24
•
Expires: 2005-09-24
Abstract
Abstract A surgical sponge comprising, a sheet of absorbent material comprising entangled fibers. The sponge has an elongated radiopaque element in the sheet, with the fibers being entangled about the element to retain it in place in the sheet.
Inventors
- 👤 Vytautas R. Rupinskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/44; A61B; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
45 words
A surgical sponge, comprising, a sheet of absorbent material comprising hydroentangled fibers; and an elongated radiopague element in the sheet, said fibers being hydroentangled about the element to retain it in place in the sheet such that the element is embedded inside of the sheet.
Claim 2
Dependent Claim
45 words
A surgical sponge, comprising, a sheet of absorbent material comprising hydroentangled fibers; and an elongated radiopague element in the sheet, said fibers being hydroentangled about the element to retain it in place in the sheet such that the element is embedded inside of the sheet.
Claim 3
Dependent Claim
14 words
A sponge of claim 1 wherein the sheet is folded into a multi-ply configuration.
Claim 4
Dependent Claim
10 words
The sponge of claim 1 wherein said fibers are hydrophilic.
Claim 5
Dependent Claim
10 words
The sponge of claim 3 wherein said fibers comprise cotton.
Claim 6
Dependent Claim
10 words
The sponge of claim 3 wherein said fibers comprise rayon.
Claim 7
Independent Claim
73 words
A method of making a surgical sponge, comprising the steps of: passing a first layer of a mass of fibers; passing a second layer of a mass of fibers adjacent the first layer; placing an elongated radiopague element intermediate the first and second layers; and hydroentangling the fibers of the first and second layers together and about said element to form a sheet of hydroentangled fibers with the element embedded inside the sheet.
Claim 8
Independent Claim
73 words
A method of making a surgical sponge, comprising the steps of: passing a first layer of a mass of fibers; passing a second layer of a mass of fibers adjacent the first layer; placing an elongated radiopague element intermediate the first and second layers; and hydroentangling the fibers of the first and second layers together and about said element to form a sheet of hydroentangled fibers with the element embedded inside the sheet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |