US3842830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical dressing and method of forming the same
Assignee: Individual
•
Filing: 1973-03-26
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Granted: 1974-10-22
•
Expires: 1993-03-26
Abstract
Abstract A surgical dressing formed in situ by applying a quantity of non-toxic sterile ceramic microparticles directly to the site of injury. The microparticles are generally spherical, fall within the size range of approximately 30 to 150 mesh, and have a specific gravity substantially in excess of 1.0.
Inventors
- 👤 T Hargest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/18; A61F; A61F13/00; A61F13/01; A61F13/01034; A61F13/15; A61F13/36; A61F13/06; A61F13/064; A61F13/069; A61F2013/00089; A61F2013/00157; A61F2013/00361; A61F2013/00365; A61F2013/00463; A61F2013/00472; A61F2013/00519; A61L2400/00; A61L2400/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
69 words
A METHOD OF ARRESTING NLEEDING AND FORMING A THERMALLY INSULATING DRESSING IN SITU, COMPRISING THE STEPS OF APPLYING A QUANTITY OF CERAMIC MICROPARTICLES DIRECTLY TO THE SITE OF INJURY, SUCH MICROPARTICLES HAVING A SPECIFIC GRAVITY GREATER THAN 1.0 AND A SIZE WITHIN THE RANGE OF 30 TO 150 MESH, AND CONTINUING SUCH APPLICATION UNTIL THE QUANTITY OF MICROPATICLES EXCEEDS THE VOLUME OF BLOOD AND OTHER FLUID AT SAID SITE.
Claim 2
Independent Claim
69 words
A METHOD OF ARRESTING NLEEDING AND FORMING A THERMALLY INSULATING DRESSING IN SITU, COMPRISING THE STEPS OF APPLYING A QUANTITY OF CERAMIC MICROPARTICLES DIRECTLY TO THE SITE OF INJURY, SUCH MICROPARTICLES HAVING A SPECIFIC GRAVITY GREATER THAN 1.0 AND A SIZE WITHIN THE RANGE OF 30 TO 150 MESH, AND CONTINUING SUCH APPLICATION UNTIL THE QUANTITY OF MICROPATICLES EXCEEDS THE VOLUME OF BLOOD AND OTHER FLUID AT SAID SITE.
Claim 3
Dependent Claim
27 words
The method of claim 1 in which said microparticles are of a glass composition containing sodium and capable of releasing sodium ions when exposed to said fluid.
Claim 4
Dependent Claim
22 words
The method of claim 1 in which said microparticles are of a size within the range of about 70 to 100 mesh.
Claim 5
Dependent Claim
14 words
The method of claim 1 in which said microparticles are generally spherical in shape.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |